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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/************************************************************************
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07002 * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
Jon Mason926bd902010-07-15 08:47:26 +00003 * Copyright(c) 2002-2010 Exar Corp.
Joe Perchesd44570e2009-08-24 17:29:44 +00004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * This software may be used and distributed according to the terms of
6 * the GNU General Public License (GPL), incorporated herein by reference.
7 * Drivers based on or derived from this code fall under the GPL and must
8 * retain the authorship, copyright and license notice. This file is not
9 * a complete program and may only be used when the entire operating
10 * system is licensed under the GPL.
11 * See the file COPYING in this distribution for more information.
12 *
13 * Credits:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070014 * Jeff Garzik : For pointing out the improper error condition
15 * check in the s2io_xmit routine and also some
16 * issues in the Tx watch dog function. Also for
17 * patiently answering all those innumerable
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 * questions regaring the 2.6 porting issues.
19 * Stephen Hemminger : Providing proper 2.6 porting mechanism for some
20 * macros available only in 2.6 Kernel.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070021 * Francois Romieu : For pointing out all code part that were
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 * deprecated and also styling related comments.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070023 * Grant Grundler : For helping me get rid of some Architecture
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 * dependent code.
25 * Christopher Hellwig : Some more 2.6 specific issues in the driver.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070026 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 * The module loadable parameters that are supported by the driver and a brief
Joe Perchesa2a20ae2009-08-24 17:29:46 +000028 * explanation of all the variables.
Ananda Raju9dc737a2006-04-21 19:05:41 -040029 *
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070030 * rx_ring_num : This can be used to program the number of receive rings used
31 * in the driver.
Ananda Raju9dc737a2006-04-21 19:05:41 -040032 * rx_ring_sz: This defines the number of receive blocks each ring can have.
33 * This is also an array of size 8.
Ananda Rajuda6971d2005-10-31 16:55:31 -050034 * rx_ring_mode: This defines the operation mode of all 8 rings. The valid
Veena Parat6d517a22007-07-23 02:20:51 -040035 * values are 1, 2.
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070037 * tx_fifo_len: This too is an array of 8. Each element defines the number of
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 * Tx descriptors that can be associated with each corresponding FIFO.
Ananda Raju9dc737a2006-04-21 19:05:41 -040039 * intr_type: This defines the type of interrupt. The values can be 0(INTA),
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -070040 * 2(MSI_X). Default value is '2(MSI_X)'
Ananda Raju9dc737a2006-04-21 19:05:41 -040041 * lro_max_pkts: This parameter defines maximum number of packets can be
42 * aggregated as a single large packet
Sivakumar Subramani926930b2007-02-24 01:59:39 -050043 * napi: This parameter used to enable/disable NAPI (polling Rx)
44 * Possible values '1' for enable and '0' for disable. Default is '1'
45 * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO)
46 * Possible values '1' for enable and '0' for disable. Default is '0'
47 * vlan_tag_strip: This can be used to enable or disable vlan stripping.
48 * Possible values '1' for enable , '0' for disable.
49 * Default is '2' - which means disable in promisc mode
50 * and enable in non-promiscuous mode.
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -050051 * multiq: This parameter used to enable/disable MULTIQUEUE support.
52 * Possible values '1' for enable and '0' for disable. Default is '0'
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 ************************************************************************/
54
Joe Perches6cef2b8e2009-08-24 17:29:45 +000055#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
56
Linus Torvalds1da177e2005-04-16 15:20:36 -070057#include <linux/module.h>
58#include <linux/types.h>
59#include <linux/errno.h>
60#include <linux/ioport.h>
61#include <linux/pci.h>
Domen Puncer1e7f0bd2005-06-26 18:22:14 -040062#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#include <linux/kernel.h>
64#include <linux/netdevice.h>
65#include <linux/etherdevice.h>
Ben Hutchings40239392009-04-29 08:13:29 +000066#include <linux/mdio.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#include <linux/skbuff.h>
68#include <linux/init.h>
69#include <linux/delay.h>
70#include <linux/stddef.h>
71#include <linux/ioctl.h>
72#include <linux/timex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#include <linux/ethtool.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070074#include <linux/workqueue.h>
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -070075#include <linux/if_vlan.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050076#include <linux/ip.h>
77#include <linux/tcp.h>
Joe Perchesd44570e2009-08-24 17:29:44 +000078#include <linux/uaccess.h>
79#include <linux/io.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090080#include <linux/slab.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050081#include <net/tcp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
Linus Torvalds1da177e2005-04-16 15:20:36 -070083#include <asm/system.h>
Andrew Mortonfe931392006-02-03 01:45:12 -080084#include <asm/div64.h>
Andrew Morton330ce0d2006-08-14 23:00:14 -070085#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
87/* local include */
88#include "s2io.h"
89#include "s2io-regs.h"
90
Jon Mason11410b62010-12-10 15:40:03 +000091#define DRV_VERSION "2.0.26.28"
John Linville6c1792f2005-10-04 07:51:45 -040092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093/* S2io Driver name & version. */
Jon Masonc0dbf372010-12-10 15:40:02 +000094static const char s2io_driver_name[] = "Neterion";
95static const char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Jon Masonc0dbf372010-12-10 15:40:02 +000097static const int rxd_size[2] = {32, 48};
98static const int rxd_count[2] = {127, 85};
Ananda Rajuda6971d2005-10-31 16:55:31 -050099
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500100static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700101{
102 int ret;
103
104 ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) &&
Joe Perchesd44570e2009-08-24 17:29:44 +0000105 (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK));
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700106
107 return ret;
108}
109
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700110/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 * Cards with following subsystem_id have a link state indication
112 * problem, 600B, 600C, 600D, 640B, 640C and 640D.
113 * macro below identifies these cards given the subsystem_id.
114 */
Joe Perchesd44570e2009-08-24 17:29:44 +0000115#define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
116 (dev_type == XFRAME_I_DEVICE) ? \
117 ((((subid >= 0x600B) && (subid <= 0x600D)) || \
118 ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119
120#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
121 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
Joe Perchesd44570e2009-08-24 17:29:44 +0000123static inline int is_s2io_card_up(const struct s2io_nic *sp)
Sivakumar Subramani92b84432007-09-06 06:51:14 -0400124{
125 return test_bit(__S2IO_STATE_CARD_UP, &sp->state);
126}
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128/* Ethtool related variables and Macros. */
Joe Perches6fce3652009-08-24 17:29:40 +0000129static const char s2io_gstrings[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 "Register test\t(offline)",
131 "Eeprom test\t(offline)",
132 "Link test\t(online)",
133 "RLDRAM test\t(offline)",
134 "BIST Test\t(offline)"
135};
136
Joe Perches6fce3652009-08-24 17:29:40 +0000137static const char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 {"tmac_frms"},
139 {"tmac_data_octets"},
140 {"tmac_drop_frms"},
141 {"tmac_mcst_frms"},
142 {"tmac_bcst_frms"},
143 {"tmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400144 {"tmac_ttl_octets"},
145 {"tmac_ucst_frms"},
146 {"tmac_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 {"tmac_any_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400148 {"tmac_ttl_less_fb_octets"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 {"tmac_vld_ip_octets"},
150 {"tmac_vld_ip"},
151 {"tmac_drop_ip"},
152 {"tmac_icmp"},
153 {"tmac_rst_tcp"},
154 {"tmac_tcp"},
155 {"tmac_udp"},
156 {"rmac_vld_frms"},
157 {"rmac_data_octets"},
158 {"rmac_fcs_err_frms"},
159 {"rmac_drop_frms"},
160 {"rmac_vld_mcst_frms"},
161 {"rmac_vld_bcst_frms"},
162 {"rmac_in_rng_len_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400163 {"rmac_out_rng_len_err_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 {"rmac_long_frms"},
165 {"rmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400166 {"rmac_unsup_ctrl_frms"},
167 {"rmac_ttl_octets"},
168 {"rmac_accepted_ucst_frms"},
169 {"rmac_accepted_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 {"rmac_discarded_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400171 {"rmac_drop_events"},
172 {"rmac_ttl_less_fb_octets"},
173 {"rmac_ttl_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 {"rmac_usized_frms"},
175 {"rmac_osized_frms"},
176 {"rmac_frag_frms"},
177 {"rmac_jabber_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400178 {"rmac_ttl_64_frms"},
179 {"rmac_ttl_65_127_frms"},
180 {"rmac_ttl_128_255_frms"},
181 {"rmac_ttl_256_511_frms"},
182 {"rmac_ttl_512_1023_frms"},
183 {"rmac_ttl_1024_1518_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 {"rmac_ip"},
185 {"rmac_ip_octets"},
186 {"rmac_hdr_err_ip"},
187 {"rmac_drop_ip"},
188 {"rmac_icmp"},
189 {"rmac_tcp"},
190 {"rmac_udp"},
191 {"rmac_err_drp_udp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400192 {"rmac_xgmii_err_sym"},
193 {"rmac_frms_q0"},
194 {"rmac_frms_q1"},
195 {"rmac_frms_q2"},
196 {"rmac_frms_q3"},
197 {"rmac_frms_q4"},
198 {"rmac_frms_q5"},
199 {"rmac_frms_q6"},
200 {"rmac_frms_q7"},
201 {"rmac_full_q0"},
202 {"rmac_full_q1"},
203 {"rmac_full_q2"},
204 {"rmac_full_q3"},
205 {"rmac_full_q4"},
206 {"rmac_full_q5"},
207 {"rmac_full_q6"},
208 {"rmac_full_q7"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 {"rmac_pause_cnt"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400210 {"rmac_xgmii_data_err_cnt"},
211 {"rmac_xgmii_ctrl_err_cnt"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212 {"rmac_accepted_ip"},
213 {"rmac_err_tcp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400214 {"rd_req_cnt"},
215 {"new_rd_req_cnt"},
216 {"new_rd_req_rtry_cnt"},
217 {"rd_rtry_cnt"},
218 {"wr_rtry_rd_ack_cnt"},
219 {"wr_req_cnt"},
220 {"new_wr_req_cnt"},
221 {"new_wr_req_rtry_cnt"},
222 {"wr_rtry_cnt"},
223 {"wr_disc_cnt"},
224 {"rd_rtry_wr_ack_cnt"},
225 {"txp_wr_cnt"},
226 {"txd_rd_cnt"},
227 {"txd_wr_cnt"},
228 {"rxd_rd_cnt"},
229 {"rxd_wr_cnt"},
230 {"txf_rd_cnt"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500231 {"rxf_wr_cnt"}
232};
233
Joe Perches6fce3652009-08-24 17:29:40 +0000234static const char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = {
Ananda Rajubd1034f2006-04-21 19:20:22 -0400235 {"rmac_ttl_1519_4095_frms"},
236 {"rmac_ttl_4096_8191_frms"},
237 {"rmac_ttl_8192_max_frms"},
238 {"rmac_ttl_gt_max_frms"},
239 {"rmac_osized_alt_frms"},
240 {"rmac_jabber_alt_frms"},
241 {"rmac_gt_max_alt_frms"},
242 {"rmac_vlan_frms"},
243 {"rmac_len_discard"},
244 {"rmac_fcs_discard"},
245 {"rmac_pf_discard"},
246 {"rmac_da_discard"},
247 {"rmac_red_discard"},
248 {"rmac_rts_discard"},
249 {"rmac_ingm_full_discard"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500250 {"link_fault_cnt"}
251};
252
Joe Perches6fce3652009-08-24 17:29:40 +0000253static const char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700254 {"\n DRIVER STATISTICS"},
255 {"single_bit_ecc_errs"},
256 {"double_bit_ecc_errs"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400257 {"parity_err_cnt"},
258 {"serious_err_cnt"},
259 {"soft_reset_cnt"},
260 {"fifo_full_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700261 {"ring_0_full_cnt"},
262 {"ring_1_full_cnt"},
263 {"ring_2_full_cnt"},
264 {"ring_3_full_cnt"},
265 {"ring_4_full_cnt"},
266 {"ring_5_full_cnt"},
267 {"ring_6_full_cnt"},
268 {"ring_7_full_cnt"},
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700269 {"alarm_transceiver_temp_high"},
270 {"alarm_transceiver_temp_low"},
271 {"alarm_laser_bias_current_high"},
272 {"alarm_laser_bias_current_low"},
273 {"alarm_laser_output_power_high"},
274 {"alarm_laser_output_power_low"},
275 {"warn_transceiver_temp_high"},
276 {"warn_transceiver_temp_low"},
277 {"warn_laser_bias_current_high"},
278 {"warn_laser_bias_current_low"},
279 {"warn_laser_output_power_high"},
280 {"warn_laser_output_power_low"},
281 {"lro_aggregated_pkts"},
282 {"lro_flush_both_count"},
283 {"lro_out_of_sequence_pkts"},
284 {"lro_flush_due_to_max_pkts"},
285 {"lro_avg_aggr_pkts"},
286 {"mem_alloc_fail_cnt"},
287 {"pci_map_fail_cnt"},
288 {"watchdog_timer_cnt"},
289 {"mem_allocated"},
290 {"mem_freed"},
291 {"link_up_cnt"},
292 {"link_down_cnt"},
293 {"link_up_time"},
294 {"link_down_time"},
295 {"tx_tcode_buf_abort_cnt"},
296 {"tx_tcode_desc_abort_cnt"},
297 {"tx_tcode_parity_err_cnt"},
298 {"tx_tcode_link_loss_cnt"},
299 {"tx_tcode_list_proc_err_cnt"},
300 {"rx_tcode_parity_err_cnt"},
301 {"rx_tcode_abort_cnt"},
302 {"rx_tcode_parity_abort_cnt"},
303 {"rx_tcode_rda_fail_cnt"},
304 {"rx_tcode_unkn_prot_cnt"},
305 {"rx_tcode_fcs_err_cnt"},
306 {"rx_tcode_buf_size_err_cnt"},
307 {"rx_tcode_rxd_corrupt_cnt"},
308 {"rx_tcode_unkn_err_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700309 {"tda_err_cnt"},
310 {"pfc_err_cnt"},
311 {"pcc_err_cnt"},
312 {"tti_err_cnt"},
313 {"tpa_err_cnt"},
314 {"sm_err_cnt"},
315 {"lso_err_cnt"},
316 {"mac_tmac_err_cnt"},
317 {"mac_rmac_err_cnt"},
318 {"xgxs_txgxs_err_cnt"},
319 {"xgxs_rxgxs_err_cnt"},
320 {"rc_err_cnt"},
321 {"prc_pcix_err_cnt"},
322 {"rpa_err_cnt"},
323 {"rda_err_cnt"},
324 {"rti_err_cnt"},
325 {"mc_err_cnt"}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326};
327
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200328#define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys)
329#define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys)
330#define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500331
Joe Perchesd44570e2009-08-24 17:29:44 +0000332#define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN)
333#define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500334
Joe Perchesd44570e2009-08-24 17:29:44 +0000335#define XFRAME_I_STAT_STRINGS_LEN (XFRAME_I_STAT_LEN * ETH_GSTRING_LEN)
336#define XFRAME_II_STAT_STRINGS_LEN (XFRAME_II_STAT_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200338#define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings)
Joe Perchesd44570e2009-08-24 17:29:44 +0000339#define S2IO_STRINGS_LEN (S2IO_TEST_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Joe Perchesd44570e2009-08-24 17:29:44 +0000341#define S2IO_TIMER_CONF(timer, handle, arg, exp) \
342 init_timer(&timer); \
343 timer.function = handle; \
344 timer.data = (unsigned long)arg; \
345 mod_timer(&timer, (jiffies + exp)) \
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700346
Sivakumar Subramani2fd37682007-09-14 07:39:19 -0400347/* copy mac addr to def_mac_addr array */
348static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr)
349{
350 sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr);
351 sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8);
352 sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16);
353 sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24);
354 sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32);
355 sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40);
356}
Stephen Hemminger04025092008-11-21 17:28:55 -0800357
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700358/* Add the vlan */
359static void s2io_vlan_rx_register(struct net_device *dev,
Stephen Hemminger04025092008-11-21 17:28:55 -0800360 struct vlan_group *grp)
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700361{
Surjit Reang2fda0962008-01-24 02:08:59 -0800362 int i;
Wang Chen4cf16532008-11-12 23:38:14 -0800363 struct s2io_nic *nic = netdev_priv(dev);
Surjit Reang2fda0962008-01-24 02:08:59 -0800364 unsigned long flags[MAX_TX_FIFOS];
Surjit Reang2fda0962008-01-24 02:08:59 -0800365 struct config_param *config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000366 struct mac_info *mac_control = &nic->mac_control;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700367
Joe Perches13d866a2009-08-24 17:29:41 +0000368 for (i = 0; i < config->tx_fifo_num; i++) {
369 struct fifo_info *fifo = &mac_control->fifos[i];
370
371 spin_lock_irqsave(&fifo->tx_lock, flags[i]);
372 }
Surjit Reang2fda0962008-01-24 02:08:59 -0800373
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700374 nic->vlgrp = grp;
Joe Perches13d866a2009-08-24 17:29:41 +0000375
376 for (i = config->tx_fifo_num - 1; i >= 0; i--) {
377 struct fifo_info *fifo = &mac_control->fifos[i];
378
379 spin_unlock_irqrestore(&fifo->tx_lock, flags[i]);
380 }
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700381}
382
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500383/* Unregister the vlan */
Stephen Hemminger04025092008-11-21 17:28:55 -0800384static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500385{
386 int i;
Wang Chen4cf16532008-11-12 23:38:14 -0800387 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500388 unsigned long flags[MAX_TX_FIFOS];
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500389 struct config_param *config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000390 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500391
Joe Perches13d866a2009-08-24 17:29:41 +0000392 for (i = 0; i < config->tx_fifo_num; i++) {
393 struct fifo_info *fifo = &mac_control->fifos[i];
394
395 spin_lock_irqsave(&fifo->tx_lock, flags[i]);
396 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500397
398 if (nic->vlgrp)
399 vlan_group_set_device(nic->vlgrp, vid, NULL);
400
Joe Perches13d866a2009-08-24 17:29:41 +0000401 for (i = config->tx_fifo_num - 1; i >= 0; i--) {
402 struct fifo_info *fifo = &mac_control->fifos[i];
403
404 spin_unlock_irqrestore(&fifo->tx_lock, flags[i]);
405 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500406}
407
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700408/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 * Constants to be programmed into the Xena's registers, to configure
410 * the XAUI.
411 */
412
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413#define END_SIGN 0x0
Arjan van de Venf71e1302006-03-03 21:33:57 -0500414static const u64 herc_act_dtx_cfg[] = {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700415 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700416 0x8000051536750000ULL, 0x80000515367500E0ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700417 /* Write data */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700418 0x8000051536750004ULL, 0x80000515367500E4ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700419 /* Set address */
420 0x80010515003F0000ULL, 0x80010515003F00E0ULL,
421 /* Write data */
422 0x80010515003F0004ULL, 0x80010515003F00E4ULL,
423 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700424 0x801205150D440000ULL, 0x801205150D4400E0ULL,
425 /* Write data */
426 0x801205150D440004ULL, 0x801205150D4400E4ULL,
427 /* Set address */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700428 0x80020515F2100000ULL, 0x80020515F21000E0ULL,
429 /* Write data */
430 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
431 /* Done */
432 END_SIGN
433};
434
Arjan van de Venf71e1302006-03-03 21:33:57 -0500435static const u64 xena_dtx_cfg[] = {
Ananda Rajuc92ca042006-04-21 19:18:03 -0400436 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 0x8000051500000000ULL, 0x80000515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400438 /* Write data */
439 0x80000515D9350004ULL, 0x80000515D93500E4ULL,
440 /* Set address */
441 0x8001051500000000ULL, 0x80010515000000E0ULL,
442 /* Write data */
443 0x80010515001E0004ULL, 0x80010515001E00E4ULL,
444 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 0x8002051500000000ULL, 0x80020515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400446 /* Write data */
447 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 END_SIGN
449};
450
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700451/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 * Constants for Fixing the MacAddress problem seen mostly on
453 * Alpha machines.
454 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500455static const u64 fix_mac[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 0x0060000000000000ULL, 0x0060600000000000ULL,
457 0x0040600000000000ULL, 0x0000600000000000ULL,
458 0x0020600000000000ULL, 0x0060600000000000ULL,
459 0x0020600000000000ULL, 0x0060600000000000ULL,
460 0x0020600000000000ULL, 0x0060600000000000ULL,
461 0x0020600000000000ULL, 0x0060600000000000ULL,
462 0x0020600000000000ULL, 0x0060600000000000ULL,
463 0x0020600000000000ULL, 0x0060600000000000ULL,
464 0x0020600000000000ULL, 0x0060600000000000ULL,
465 0x0020600000000000ULL, 0x0060600000000000ULL,
466 0x0020600000000000ULL, 0x0060600000000000ULL,
467 0x0020600000000000ULL, 0x0060600000000000ULL,
468 0x0020600000000000ULL, 0x0000600000000000ULL,
469 0x0040600000000000ULL, 0x0060600000000000ULL,
470 END_SIGN
471};
472
Ananda Rajub41477f2006-07-24 19:52:49 -0400473MODULE_LICENSE("GPL");
474MODULE_VERSION(DRV_VERSION);
475
476
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477/* Module Loadable parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500478S2IO_PARM_INT(tx_fifo_num, FIFO_DEFAULT_NUM);
Ananda Rajub41477f2006-07-24 19:52:49 -0400479S2IO_PARM_INT(rx_ring_num, 1);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500480S2IO_PARM_INT(multiq, 0);
Ananda Rajub41477f2006-07-24 19:52:49 -0400481S2IO_PARM_INT(rx_ring_mode, 1);
482S2IO_PARM_INT(use_continuous_tx_intrs, 1);
483S2IO_PARM_INT(rmac_pause_time, 0x100);
484S2IO_PARM_INT(mc_pause_threshold_q0q3, 187);
485S2IO_PARM_INT(mc_pause_threshold_q4q7, 187);
486S2IO_PARM_INT(shared_splits, 0);
487S2IO_PARM_INT(tmac_util_period, 5);
488S2IO_PARM_INT(rmac_util_period, 5);
Ananda Rajub41477f2006-07-24 19:52:49 -0400489S2IO_PARM_INT(l3l4hdr_size, 128);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500490/* 0 is no steering, 1 is Priority steering, 2 is Default steering */
491S2IO_PARM_INT(tx_steering_type, TX_DEFAULT_STEERING);
Ananda Rajub41477f2006-07-24 19:52:49 -0400492/* Frequency of Rx desc syncs expressed as power of 2 */
493S2IO_PARM_INT(rxsync_frequency, 3);
Veena Parateccb8622007-07-23 02:23:54 -0400494/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -0700495S2IO_PARM_INT(intr_type, 2);
Ananda Rajub41477f2006-07-24 19:52:49 -0400496/* Large receive offload feature */
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700497
Ananda Rajub41477f2006-07-24 19:52:49 -0400498/* Max pkts to be aggregated by LRO at one time. If not specified,
499 * aggregation happens until we hit max IP pkt size(64K)
500 */
501S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
Ananda Rajub41477f2006-07-24 19:52:49 -0400502S2IO_PARM_INT(indicate_max_pkts, 0);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -0500503
504S2IO_PARM_INT(napi, 1);
505S2IO_PARM_INT(ufo, 0);
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500506S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC);
Ananda Rajub41477f2006-07-24 19:52:49 -0400507
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000509{DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510static unsigned int rx_ring_sz[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000511{[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700512static unsigned int rts_frm_len[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000513{[0 ...(MAX_RX_RINGS - 1)] = 0 };
Ananda Rajub41477f2006-07-24 19:52:49 -0400514
515module_param_array(tx_fifo_len, uint, NULL, 0);
516module_param_array(rx_ring_sz, uint, NULL, 0);
517module_param_array(rts_frm_len, uint, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700519/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 * S2IO device table.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700521 * This table lists all the devices that this driver supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +0000523static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN,
525 PCI_ANY_ID, PCI_ANY_ID},
526 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI,
527 PCI_ANY_ID, PCI_ANY_ID},
528 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN,
Joe Perchesd44570e2009-08-24 17:29:44 +0000529 PCI_ANY_ID, PCI_ANY_ID},
530 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI,
531 PCI_ANY_ID, PCI_ANY_ID},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 {0,}
533};
534
535MODULE_DEVICE_TABLE(pci, s2io_tbl);
536
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500537static struct pci_error_handlers s2io_err_handler = {
538 .error_detected = s2io_io_error_detected,
539 .slot_reset = s2io_io_slot_reset,
540 .resume = s2io_io_resume,
541};
542
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543static struct pci_driver s2io_driver = {
Joe Perchesd44570e2009-08-24 17:29:44 +0000544 .name = "S2IO",
545 .id_table = s2io_tbl,
546 .probe = s2io_init_nic,
547 .remove = __devexit_p(s2io_rem_nic),
548 .err_handler = &s2io_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549};
550
551/* A simplifier macro used both by init and free shared_mem Fns(). */
552#define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
553
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500554/* netqueue manipulation helper functions */
555static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp)
556{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700557 if (!sp->config.multiq) {
558 int i;
559
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500560 for (i = 0; i < sp->config.tx_fifo_num; i++)
561 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500562 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700563 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500564}
565
566static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no)
567{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700568 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500569 sp->mac_control.fifos[fifo_no].queue_state =
570 FIFO_QUEUE_STOP;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700571
572 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500573}
574
575static inline void s2io_start_all_tx_queue(struct s2io_nic *sp)
576{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700577 if (!sp->config.multiq) {
578 int i;
579
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500580 for (i = 0; i < sp->config.tx_fifo_num; i++)
581 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500582 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700583 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500584}
585
586static inline void s2io_start_tx_queue(struct s2io_nic *sp, int fifo_no)
587{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700588 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500589 sp->mac_control.fifos[fifo_no].queue_state =
590 FIFO_QUEUE_START;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700591
592 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500593}
594
595static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp)
596{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700597 if (!sp->config.multiq) {
598 int i;
599
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500600 for (i = 0; i < sp->config.tx_fifo_num; i++)
601 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500602 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700603 netif_tx_wake_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500604}
605
606static inline void s2io_wake_tx_queue(
607 struct fifo_info *fifo, int cnt, u8 multiq)
608{
609
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500610 if (multiq) {
611 if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no))
612 netif_wake_subqueue(fifo->dev, fifo->fifo_no);
David S. Millerb19fa1f2008-07-08 23:14:24 -0700613 } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500614 if (netif_queue_stopped(fifo->dev)) {
615 fifo->queue_state = FIFO_QUEUE_START;
616 netif_wake_queue(fifo->dev);
617 }
618 }
619}
620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621/**
622 * init_shared_mem - Allocation and Initialization of Memory
623 * @nic: Device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700624 * Description: The function allocates all the memory areas shared
625 * between the NIC and the driver. This includes Tx descriptors,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 * Rx descriptors and the statistics block.
627 */
628
629static int init_shared_mem(struct s2io_nic *nic)
630{
631 u32 size;
632 void *tmp_v_addr, *tmp_v_addr_next;
633 dma_addr_t tmp_p_addr, tmp_p_addr_next;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500634 struct RxD_block *pre_rxd_blk = NULL;
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500635 int i, j, blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 int lst_size, lst_per_page;
637 struct net_device *dev = nic->dev;
viro@zenIV.linux.org.uk8ae418c2005-09-02 20:15:29 +0100638 unsigned long tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500639 struct buffAdd *ba;
Joe Perchesffb5df62009-08-24 17:29:47 +0000640 struct config_param *config = &nic->config;
641 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400642 unsigned long long mem_allocated = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643
Joe Perches13d866a2009-08-24 17:29:41 +0000644 /* Allocation and initialization of TXDLs in FIFOs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645 size = 0;
646 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000647 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
648
649 size += tx_cfg->fifo_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 }
651 if (size > MAX_AVAILABLE_TXDS) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000652 DBG_PRINT(ERR_DBG,
653 "Too many TxDs requested: %d, max supported: %d\n",
654 size, MAX_AVAILABLE_TXDS);
Ananda Rajub41477f2006-07-24 19:52:49 -0400655 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 }
657
Surjit Reang2fda0962008-01-24 02:08:59 -0800658 size = 0;
659 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000660 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
661
662 size = tx_cfg->fifo_len;
Surjit Reang2fda0962008-01-24 02:08:59 -0800663 /*
664 * Legal values are from 2 to 8192
665 */
666 if (size < 2) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000667 DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - "
668 "Valid lengths are 2 through 8192\n",
669 i, size);
Surjit Reang2fda0962008-01-24 02:08:59 -0800670 return -EINVAL;
671 }
672 }
673
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500674 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 lst_per_page = PAGE_SIZE / lst_size;
676
677 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000678 struct fifo_info *fifo = &mac_control->fifos[i];
679 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
680 int fifo_len = tx_cfg->fifo_len;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500681 int list_holder_size = fifo_len * sizeof(struct list_info_hold);
Joe Perches13d866a2009-08-24 17:29:41 +0000682
683 fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL);
684 if (!fifo->list_info) {
Joe Perchesd44570e2009-08-24 17:29:44 +0000685 DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 return -ENOMEM;
687 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400688 mem_allocated += list_holder_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 }
690 for (i = 0; i < config->tx_fifo_num; i++) {
691 int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
692 lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000693 struct fifo_info *fifo = &mac_control->fifos[i];
694 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
695
696 fifo->tx_curr_put_info.offset = 0;
697 fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1;
698 fifo->tx_curr_get_info.offset = 0;
699 fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1;
700 fifo->fifo_no = i;
701 fifo->nic = nic;
702 fifo->max_txds = MAX_SKB_FRAGS + 2;
703 fifo->dev = dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 for (j = 0; j < page_num; j++) {
706 int k = 0;
707 dma_addr_t tmp_p;
708 void *tmp_v;
709 tmp_v = pci_alloc_consistent(nic->pdev,
710 PAGE_SIZE, &tmp_p);
711 if (!tmp_v) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000712 DBG_PRINT(INFO_DBG,
713 "pci_alloc_consistent failed for TxDL\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 return -ENOMEM;
715 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700716 /* If we got a zero DMA address(can happen on
717 * certain platforms like PPC), reallocate.
718 * Store virtual address of page we don't want,
719 * to be freed later.
720 */
721 if (!tmp_p) {
722 mac_control->zerodma_virt_addr = tmp_v;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400723 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000724 "%s: Zero DMA address for TxDL. "
725 "Virtual address %p\n",
726 dev->name, tmp_v);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700727 tmp_v = pci_alloc_consistent(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +0000728 PAGE_SIZE, &tmp_p);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700729 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800730 DBG_PRINT(INFO_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000731 "pci_alloc_consistent failed for TxDL\n");
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700732 return -ENOMEM;
733 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400734 mem_allocated += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700735 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 while (k < lst_per_page) {
737 int l = (j * lst_per_page) + k;
Joe Perches13d866a2009-08-24 17:29:41 +0000738 if (l == tx_cfg->fifo_len)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700739 break;
Joe Perches13d866a2009-08-24 17:29:41 +0000740 fifo->list_info[l].list_virt_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000741 tmp_v + (k * lst_size);
Joe Perches13d866a2009-08-24 17:29:41 +0000742 fifo->list_info[l].list_phy_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000743 tmp_p + (k * lst_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 k++;
745 }
746 }
747 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748
Surjit Reang2fda0962008-01-24 02:08:59 -0800749 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000750 struct fifo_info *fifo = &mac_control->fifos[i];
751 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
752
753 size = tx_cfg->fifo_len;
754 fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL);
755 if (!fifo->ufo_in_band_v)
Surjit Reang2fda0962008-01-24 02:08:59 -0800756 return -ENOMEM;
757 mem_allocated += (size * sizeof(u64));
758 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 /* Allocation and initialization of RXDs in Rings */
761 size = 0;
762 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000763 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
764 struct ring_info *ring = &mac_control->rings[i];
765
766 if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000767 DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a "
768 "multiple of RxDs per Block\n",
769 dev->name, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 return FAILURE;
771 }
Joe Perches13d866a2009-08-24 17:29:41 +0000772 size += rx_cfg->num_rxd;
773 ring->block_count = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000774 (rxd_count[nic->rxd_mode] + 1);
Joe Perches13d866a2009-08-24 17:29:41 +0000775 ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500777 if (nic->rxd_mode == RXD_MODE_1)
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500778 size = (size * (sizeof(struct RxD1)));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500779 else
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500780 size = (size * (sizeof(struct RxD3)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
782 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000783 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
784 struct ring_info *ring = &mac_control->rings[i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700785
Joe Perches13d866a2009-08-24 17:29:41 +0000786 ring->rx_curr_get_info.block_index = 0;
787 ring->rx_curr_get_info.offset = 0;
788 ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1;
789 ring->rx_curr_put_info.block_index = 0;
790 ring->rx_curr_put_info.offset = 0;
791 ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1;
792 ring->nic = nic;
793 ring->ring_no = i;
Joe Perches13d866a2009-08-24 17:29:41 +0000794
795 blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 /* Allocating all the Rx blocks */
797 for (j = 0; j < blk_cnt; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500798 struct rx_block_info *rx_blocks;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500799 int l;
800
Joe Perches13d866a2009-08-24 17:29:41 +0000801 rx_blocks = &ring->rx_blocks[j];
Joe Perchesd44570e2009-08-24 17:29:44 +0000802 size = SIZE_OF_BLOCK; /* size is always page size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803 tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
804 &tmp_p_addr);
805 if (tmp_v_addr == NULL) {
806 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700807 * In case of failure, free_shared_mem()
808 * is called, which should free any
809 * memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 * failure happened.
811 */
Ananda Rajuda6971d2005-10-31 16:55:31 -0500812 rx_blocks->block_virt_addr = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813 return -ENOMEM;
814 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400815 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 memset(tmp_v_addr, 0, size);
Joe Perches4f870322009-08-24 17:29:42 +0000817
818 size = sizeof(struct rxd_info) *
819 rxd_count[nic->rxd_mode];
Ananda Rajuda6971d2005-10-31 16:55:31 -0500820 rx_blocks->block_virt_addr = tmp_v_addr;
821 rx_blocks->block_dma_addr = tmp_p_addr;
Joe Perches4f870322009-08-24 17:29:42 +0000822 rx_blocks->rxds = kmalloc(size, GFP_KERNEL);
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500823 if (!rx_blocks->rxds)
824 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000825 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000826 for (l = 0; l < rxd_count[nic->rxd_mode]; l++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500827 rx_blocks->rxds[l].virt_addr =
828 rx_blocks->block_virt_addr +
829 (rxd_size[nic->rxd_mode] * l);
830 rx_blocks->rxds[l].dma_addr =
831 rx_blocks->block_dma_addr +
832 (rxd_size[nic->rxd_mode] * l);
833 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834 }
835 /* Interlinking all Rx Blocks */
836 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000837 int next = (j + 1) % blk_cnt;
838 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
839 tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr;
840 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
841 tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842
Joe Perchesd44570e2009-08-24 17:29:44 +0000843 pre_rxd_blk = (struct RxD_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 pre_rxd_blk->reserved_2_pNext_RxD_block =
Joe Perchesd44570e2009-08-24 17:29:44 +0000845 (unsigned long)tmp_v_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 pre_rxd_blk->pNext_RxD_Blk_physical =
Joe Perchesd44570e2009-08-24 17:29:44 +0000847 (u64)tmp_p_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 }
849 }
Veena Parat6d517a22007-07-23 02:20:51 -0400850 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500851 /*
852 * Allocation of Storages for buffer addresses in 2BUFF mode
853 * and the buffers as well.
854 */
855 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000856 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
857 struct ring_info *ring = &mac_control->rings[i];
858
859 blk_cnt = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000860 (rxd_count[nic->rxd_mode] + 1);
Joe Perches4f870322009-08-24 17:29:42 +0000861 size = sizeof(struct buffAdd *) * blk_cnt;
862 ring->ba = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000863 if (!ring->ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000865 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500866 for (j = 0; j < blk_cnt; j++) {
867 int k = 0;
Joe Perches4f870322009-08-24 17:29:42 +0000868
869 size = sizeof(struct buffAdd) *
870 (rxd_count[nic->rxd_mode] + 1);
871 ring->ba[j] = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000872 if (!ring->ba[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000874 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500875 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +0000876 ba = &ring->ba[j][k];
Joe Perches4f870322009-08-24 17:29:42 +0000877 size = BUF0_LEN + ALIGN_SIZE;
878 ba->ba_0_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500879 if (!ba->ba_0_org)
880 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000881 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500882 tmp = (unsigned long)ba->ba_0_org;
883 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000884 tmp &= ~((unsigned long)ALIGN_SIZE);
885 ba->ba_0 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500886
Joe Perches4f870322009-08-24 17:29:42 +0000887 size = BUF1_LEN + ALIGN_SIZE;
888 ba->ba_1_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500889 if (!ba->ba_1_org)
890 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000891 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000892 tmp = (unsigned long)ba->ba_1_org;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500893 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000894 tmp &= ~((unsigned long)ALIGN_SIZE);
895 ba->ba_1 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500896 k++;
897 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 }
899 }
900 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901
902 /* Allocation and initialization of Statistics block */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500903 size = sizeof(struct stat_block);
Joe Perchesd44570e2009-08-24 17:29:44 +0000904 mac_control->stats_mem =
905 pci_alloc_consistent(nic->pdev, size,
906 &mac_control->stats_mem_phy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
908 if (!mac_control->stats_mem) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700909 /*
910 * In case of failure, free_shared_mem() is called, which
911 * should free any memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 * failure happened.
913 */
914 return -ENOMEM;
915 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400916 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 mac_control->stats_mem_sz = size;
918
919 tmp_v_addr = mac_control->stats_mem;
Joe Perchesd44570e2009-08-24 17:29:44 +0000920 mac_control->stats_info = (struct stat_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921 memset(tmp_v_addr, 0, size);
Breno Leitao3a228132010-03-04 10:40:44 +0000922 DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n",
923 dev_name(&nic->pdev->dev), (unsigned long long)tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400924 mac_control->stats_info->sw_stat.mem_allocated += mem_allocated;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 return SUCCESS;
926}
927
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700928/**
929 * free_shared_mem - Free the allocated Memory
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930 * @nic: Device private variable.
931 * Description: This function is to free all memory locations allocated by
932 * the init_shared_mem() function and return it to the kernel.
933 */
934
935static void free_shared_mem(struct s2io_nic *nic)
936{
937 int i, j, blk_cnt, size;
938 void *tmp_v_addr;
939 dma_addr_t tmp_p_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940 int lst_size, lst_per_page;
Micah Gruber8910b492007-07-09 11:29:04 +0800941 struct net_device *dev;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400942 int page_num = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +0000943 struct config_param *config;
944 struct mac_info *mac_control;
945 struct stat_block *stats;
946 struct swStat *swstats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
948 if (!nic)
949 return;
950
Micah Gruber8910b492007-07-09 11:29:04 +0800951 dev = nic->dev;
952
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953 config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000954 mac_control = &nic->mac_control;
955 stats = mac_control->stats_info;
956 swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Joe Perchesd44570e2009-08-24 17:29:44 +0000958 lst_size = sizeof(struct TxD) * config->max_txds;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 lst_per_page = PAGE_SIZE / lst_size;
960
961 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000962 struct fifo_info *fifo = &mac_control->fifos[i];
963 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
964
965 page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 for (j = 0; j < page_num; j++) {
967 int mem_blks = (j * lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000968 struct list_info_hold *fli;
969
970 if (!fifo->list_info)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400971 return;
Joe Perches13d866a2009-08-24 17:29:41 +0000972
973 fli = &fifo->list_info[mem_blks];
974 if (!fli->list_virt_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 break;
976 pci_free_consistent(nic->pdev, PAGE_SIZE,
Joe Perches13d866a2009-08-24 17:29:41 +0000977 fli->list_virt_addr,
978 fli->list_phy_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000979 swstats->mem_freed += PAGE_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700981 /* If we got a zero DMA address during allocation,
982 * free the page now
983 */
984 if (mac_control->zerodma_virt_addr) {
985 pci_free_consistent(nic->pdev, PAGE_SIZE,
986 mac_control->zerodma_virt_addr,
987 (dma_addr_t)0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400988 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000989 "%s: Freeing TxDL with zero DMA address. "
990 "Virtual address %p\n",
991 dev->name, mac_control->zerodma_virt_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000992 swstats->mem_freed += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700993 }
Joe Perches13d866a2009-08-24 17:29:41 +0000994 kfree(fifo->list_info);
Joe Perches82c2d022009-08-24 17:29:48 +0000995 swstats->mem_freed += tx_cfg->fifo_len *
Joe Perchesd44570e2009-08-24 17:29:44 +0000996 sizeof(struct list_info_hold);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 }
998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 size = SIZE_OF_BLOCK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001001 struct ring_info *ring = &mac_control->rings[i];
1002
1003 blk_cnt = ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001005 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
1006 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 if (tmp_v_addr == NULL)
1008 break;
1009 pci_free_consistent(nic->pdev, size,
1010 tmp_v_addr, tmp_p_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +00001011 swstats->mem_freed += size;
Joe Perches13d866a2009-08-24 17:29:41 +00001012 kfree(ring->rx_blocks[j].rxds);
Joe Perchesffb5df62009-08-24 17:29:47 +00001013 swstats->mem_freed += sizeof(struct rxd_info) *
1014 rxd_count[nic->rxd_mode];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 }
1016 }
1017
Veena Parat6d517a22007-07-23 02:20:51 -04001018 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05001019 /* Freeing buffer storage addresses in 2BUFF mode. */
1020 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001021 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1022 struct ring_info *ring = &mac_control->rings[i];
1023
1024 blk_cnt = rx_cfg->num_rxd /
1025 (rxd_count[nic->rxd_mode] + 1);
Ananda Rajuda6971d2005-10-31 16:55:31 -05001026 for (j = 0; j < blk_cnt; j++) {
1027 int k = 0;
Joe Perches13d866a2009-08-24 17:29:41 +00001028 if (!ring->ba[j])
Ananda Rajuda6971d2005-10-31 16:55:31 -05001029 continue;
1030 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +00001031 struct buffAdd *ba = &ring->ba[j][k];
Ananda Rajuda6971d2005-10-31 16:55:31 -05001032 kfree(ba->ba_0_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001033 swstats->mem_freed +=
1034 BUF0_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001035 kfree(ba->ba_1_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001036 swstats->mem_freed +=
1037 BUF1_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001038 k++;
1039 }
Joe Perches13d866a2009-08-24 17:29:41 +00001040 kfree(ring->ba[j]);
Joe Perchesffb5df62009-08-24 17:29:47 +00001041 swstats->mem_freed += sizeof(struct buffAdd) *
1042 (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 }
Joe Perches13d866a2009-08-24 17:29:41 +00001044 kfree(ring->ba);
Joe Perchesffb5df62009-08-24 17:29:47 +00001045 swstats->mem_freed += sizeof(struct buffAdd *) *
1046 blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Surjit Reang2fda0962008-01-24 02:08:59 -08001050 for (i = 0; i < nic->config.tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001051 struct fifo_info *fifo = &mac_control->fifos[i];
1052 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1053
1054 if (fifo->ufo_in_band_v) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001055 swstats->mem_freed += tx_cfg->fifo_len *
1056 sizeof(u64);
Joe Perches13d866a2009-08-24 17:29:41 +00001057 kfree(fifo->ufo_in_band_v);
Surjit Reang2fda0962008-01-24 02:08:59 -08001058 }
1059 }
1060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 if (mac_control->stats_mem) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001062 swstats->mem_freed += mac_control->stats_mem_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063 pci_free_consistent(nic->pdev,
1064 mac_control->stats_mem_sz,
1065 mac_control->stats_mem,
1066 mac_control->stats_mem_phy);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04001067 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068}
1069
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001070/**
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001071 * s2io_verify_pci_mode -
1072 */
1073
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001074static int s2io_verify_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001075{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001076 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001077 register u64 val64 = 0;
1078 int mode;
1079
1080 val64 = readq(&bar0->pci_mode);
1081 mode = (u8)GET_PCI_MODE(val64);
1082
Joe Perchesd44570e2009-08-24 17:29:44 +00001083 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001084 return -1; /* Unknown PCI mode */
1085 return mode;
1086}
1087
Ananda Rajuc92ca042006-04-21 19:18:03 -04001088#define NEC_VENID 0x1033
1089#define NEC_DEVID 0x0125
1090static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
1091{
1092 struct pci_dev *tdev = NULL;
Alan Cox26d36b62006-09-15 15:22:51 +01001093 while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
1094 if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) {
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001095 if (tdev->bus == s2io_pdev->bus->parent) {
Alan Cox26d36b62006-09-15 15:22:51 +01001096 pci_dev_put(tdev);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001097 return 1;
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001098 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001099 }
1100 }
1101 return 0;
1102}
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001103
Adrian Bunk7b32a312006-05-16 17:30:50 +02001104static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001105/**
1106 * s2io_print_pci_mode -
1107 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001108static int s2io_print_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001109{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001110 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001111 register u64 val64 = 0;
1112 int mode;
1113 struct config_param *config = &nic->config;
Joe Perches9e39f7c2009-08-25 08:52:00 +00001114 const char *pcimode;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001115
1116 val64 = readq(&bar0->pci_mode);
1117 mode = (u8)GET_PCI_MODE(val64);
1118
Joe Perchesd44570e2009-08-24 17:29:44 +00001119 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001120 return -1; /* Unknown PCI mode */
1121
Ananda Rajuc92ca042006-04-21 19:18:03 -04001122 config->bus_speed = bus_speed[mode];
1123
1124 if (s2io_on_nec_bridge(nic->pdev)) {
1125 DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001126 nic->dev->name);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001127 return mode;
1128 }
1129
Joe Perchesd44570e2009-08-24 17:29:44 +00001130 switch (mode) {
1131 case PCI_MODE_PCI_33:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001132 pcimode = "33MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001133 break;
1134 case PCI_MODE_PCI_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001135 pcimode = "66MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001136 break;
1137 case PCI_MODE_PCIX_M1_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001138 pcimode = "66MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001139 break;
1140 case PCI_MODE_PCIX_M1_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001141 pcimode = "100MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001142 break;
1143 case PCI_MODE_PCIX_M1_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001144 pcimode = "133MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001145 break;
1146 case PCI_MODE_PCIX_M2_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001147 pcimode = "133MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001148 break;
1149 case PCI_MODE_PCIX_M2_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001150 pcimode = "200MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001151 break;
1152 case PCI_MODE_PCIX_M2_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001153 pcimode = "266MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001154 break;
1155 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001156 pcimode = "unsupported bus!";
1157 mode = -1;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001158 }
1159
Joe Perches9e39f7c2009-08-25 08:52:00 +00001160 DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n",
1161 nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode);
1162
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001163 return mode;
1164}
1165
1166/**
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001167 * init_tti - Initialization transmit traffic interrupt scheme
1168 * @nic: device private variable
1169 * @link: link status (UP/DOWN) used to enable/disable continuous
1170 * transmit interrupts
1171 * Description: The function configures transmit traffic interrupts
1172 * Return Value: SUCCESS on success and
1173 * '-1' on failure
1174 */
1175
Adrian Bunk0d66afe2008-03-04 15:19:22 -08001176static int init_tti(struct s2io_nic *nic, int link)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001177{
1178 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1179 register u64 val64 = 0;
1180 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00001181 struct config_param *config = &nic->config;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001182
1183 for (i = 0; i < config->tx_fifo_num; i++) {
1184 /*
1185 * TTI Initialization. Default Tx timer gets us about
1186 * 250 interrupts per sec. Continuous interrupts are enabled
1187 * by default.
1188 */
1189 if (nic->device_type == XFRAME_II_DEVICE) {
1190 int count = (nic->config.bus_speed * 125)/2;
1191 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
1192 } else
1193 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1194
1195 val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001196 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1197 TTI_DATA1_MEM_TX_URNG_C(0x30) |
1198 TTI_DATA1_MEM_TX_TIMER_AC_EN;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001199 if (i == 0)
1200 if (use_continuous_tx_intrs && (link == LINK_UP))
1201 val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001202 writeq(val64, &bar0->tti_data1_mem);
1203
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001204 if (nic->config.intr_type == MSI_X) {
1205 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1206 TTI_DATA2_MEM_TX_UFC_B(0x100) |
1207 TTI_DATA2_MEM_TX_UFC_C(0x200) |
1208 TTI_DATA2_MEM_TX_UFC_D(0x300);
1209 } else {
1210 if ((nic->config.tx_steering_type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00001211 TX_DEFAULT_STEERING) &&
1212 (config->tx_fifo_num > 1) &&
1213 (i >= nic->udp_fifo_idx) &&
1214 (i < (nic->udp_fifo_idx +
1215 nic->total_udp_fifos)))
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001216 val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) |
1217 TTI_DATA2_MEM_TX_UFC_B(0x80) |
1218 TTI_DATA2_MEM_TX_UFC_C(0x100) |
1219 TTI_DATA2_MEM_TX_UFC_D(0x120);
1220 else
1221 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1222 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1223 TTI_DATA2_MEM_TX_UFC_C(0x40) |
1224 TTI_DATA2_MEM_TX_UFC_D(0x80);
1225 }
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001226
1227 writeq(val64, &bar0->tti_data2_mem);
1228
Joe Perchesd44570e2009-08-24 17:29:44 +00001229 val64 = TTI_CMD_MEM_WE |
1230 TTI_CMD_MEM_STROBE_NEW_CMD |
1231 TTI_CMD_MEM_OFFSET(i);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001232 writeq(val64, &bar0->tti_command_mem);
1233
1234 if (wait_for_cmd_complete(&bar0->tti_command_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00001235 TTI_CMD_MEM_STROBE_NEW_CMD,
1236 S2IO_BIT_RESET) != SUCCESS)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001237 return FAILURE;
1238 }
1239
1240 return SUCCESS;
1241}
1242
1243/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001244 * init_nic - Initialization of hardware
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001245 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001246 * Description: The function sequentially configures every block
1247 * of the H/W from their reset values.
1248 * Return Value: SUCCESS on success and
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 * '-1' on failure (endian settings incorrect).
1250 */
1251
1252static int init_nic(struct s2io_nic *nic)
1253{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001254 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255 struct net_device *dev = nic->dev;
1256 register u64 val64 = 0;
1257 void __iomem *add;
1258 u32 time;
1259 int i, j;
Ananda Rajuc92ca042006-04-21 19:18:03 -04001260 int dtx_cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 unsigned long long mem_share;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001262 int mem_size;
Joe Perchesffb5df62009-08-24 17:29:47 +00001263 struct config_param *config = &nic->config;
1264 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001266 /* to set the swapper controle on the card */
Joe Perchesd44570e2009-08-24 17:29:44 +00001267 if (s2io_set_swapper(nic)) {
1268 DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n");
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001269 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270 }
1271
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001272 /*
1273 * Herc requires EOI to be removed from reset before XGXS, so..
1274 */
1275 if (nic->device_type & XFRAME_II_DEVICE) {
1276 val64 = 0xA500000000ULL;
1277 writeq(val64, &bar0->sw_reset);
1278 msleep(500);
1279 val64 = readq(&bar0->sw_reset);
1280 }
1281
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 /* Remove XGXS from reset state */
1283 val64 = 0;
1284 writeq(val64, &bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 msleep(500);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001286 val64 = readq(&bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287
Sreenivasa Honnur79620242007-12-05 23:59:28 -05001288 /* Ensure that it's safe to access registers by checking
1289 * RIC_RUNNING bit is reset. Check is valid only for XframeII.
1290 */
1291 if (nic->device_type == XFRAME_II_DEVICE) {
1292 for (i = 0; i < 50; i++) {
1293 val64 = readq(&bar0->adapter_status);
1294 if (!(val64 & ADAPTER_STATUS_RIC_RUNNING))
1295 break;
1296 msleep(10);
1297 }
1298 if (i == 50)
1299 return -ENODEV;
1300 }
1301
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302 /* Enable Receiving broadcasts */
1303 add = &bar0->mac_cfg;
1304 val64 = readq(&bar0->mac_cfg);
1305 val64 |= MAC_RMAC_BCAST_ENABLE;
1306 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00001307 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1309 writel((u32) (val64 >> 32), (add + 4));
1310
1311 /* Read registers in all blocks */
1312 val64 = readq(&bar0->mac_int_mask);
1313 val64 = readq(&bar0->mc_int_mask);
1314 val64 = readq(&bar0->xgxs_int_mask);
1315
1316 /* Set MTU */
1317 val64 = dev->mtu;
1318 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
1319
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001320 if (nic->device_type & XFRAME_II_DEVICE) {
1321 while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07001322 SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 &bar0->dtx_control, UF);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001324 if (dtx_cnt & 0x1)
1325 msleep(1); /* Necessary!! */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326 dtx_cnt++;
1327 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001328 } else {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001329 while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
1330 SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
1331 &bar0->dtx_control, UF);
1332 val64 = readq(&bar0->dtx_control);
1333 dtx_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 }
1335 }
1336
1337 /* Tx DMA Initialization */
1338 val64 = 0;
1339 writeq(val64, &bar0->tx_fifo_partition_0);
1340 writeq(val64, &bar0->tx_fifo_partition_1);
1341 writeq(val64, &bar0->tx_fifo_partition_2);
1342 writeq(val64, &bar0->tx_fifo_partition_3);
1343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 for (i = 0, j = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001345 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1346
1347 val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) |
1348 vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349
1350 if (i == (config->tx_fifo_num - 1)) {
1351 if (i % 2 == 0)
1352 i++;
1353 }
1354
1355 switch (i) {
1356 case 1:
1357 writeq(val64, &bar0->tx_fifo_partition_0);
1358 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001359 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360 break;
1361 case 3:
1362 writeq(val64, &bar0->tx_fifo_partition_1);
1363 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001364 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 break;
1366 case 5:
1367 writeq(val64, &bar0->tx_fifo_partition_2);
1368 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001369 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370 break;
1371 case 7:
1372 writeq(val64, &bar0->tx_fifo_partition_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001373 val64 = 0;
1374 j = 0;
1375 break;
1376 default:
1377 j++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378 break;
1379 }
1380 }
1381
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001382 /*
1383 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1384 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1385 */
Joe Perchesd44570e2009-08-24 17:29:44 +00001386 if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001387 writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
1388
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 val64 = readq(&bar0->tx_fifo_partition_0);
1390 DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001391 &bar0->tx_fifo_partition_0, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001393 /*
1394 * Initialization of Tx_PA_CONFIG register to ignore packet
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395 * integrity checking.
1396 */
1397 val64 = readq(&bar0->tx_pa_cfg);
Joe Perchesd44570e2009-08-24 17:29:44 +00001398 val64 |= TX_PA_CFG_IGNORE_FRM_ERR |
1399 TX_PA_CFG_IGNORE_SNAP_OUI |
1400 TX_PA_CFG_IGNORE_LLC_CTRL |
1401 TX_PA_CFG_IGNORE_L2_ERR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 writeq(val64, &bar0->tx_pa_cfg);
1403
1404 /* Rx DMA intialization. */
1405 val64 = 0;
1406 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001407 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1408
1409 val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 }
1411 writeq(val64, &bar0->rx_queue_priority);
1412
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001413 /*
1414 * Allocating equal share of memory to all the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 * configured Rings.
1416 */
1417 val64 = 0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001418 if (nic->device_type & XFRAME_II_DEVICE)
1419 mem_size = 32;
1420 else
1421 mem_size = 64;
1422
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 for (i = 0; i < config->rx_ring_num; i++) {
1424 switch (i) {
1425 case 0:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001426 mem_share = (mem_size / config->rx_ring_num +
1427 mem_size % config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share);
1429 continue;
1430 case 1:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001431 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share);
1433 continue;
1434 case 2:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001435 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share);
1437 continue;
1438 case 3:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001439 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440 val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share);
1441 continue;
1442 case 4:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001443 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share);
1445 continue;
1446 case 5:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001447 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share);
1449 continue;
1450 case 6:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001451 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share);
1453 continue;
1454 case 7:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001455 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share);
1457 continue;
1458 }
1459 }
1460 writeq(val64, &bar0->rx_queue_cfg);
1461
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001462 /*
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001463 * Filling Tx round robin registers
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001464 * as per the number of FIFOs for equal scheduling priority
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001466 switch (config->tx_fifo_num) {
1467 case 1:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001468 val64 = 0x0;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001469 writeq(val64, &bar0->tx_w_round_robin_0);
1470 writeq(val64, &bar0->tx_w_round_robin_1);
1471 writeq(val64, &bar0->tx_w_round_robin_2);
1472 writeq(val64, &bar0->tx_w_round_robin_3);
1473 writeq(val64, &bar0->tx_w_round_robin_4);
1474 break;
1475 case 2:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001476 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001477 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001478 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001479 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001480 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001481 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001482 writeq(val64, &bar0->tx_w_round_robin_4);
1483 break;
1484 case 3:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001485 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001486 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001487 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001488 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001489 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001490 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001491 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001492 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001493 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001494 writeq(val64, &bar0->tx_w_round_robin_4);
1495 break;
1496 case 4:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001497 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001498 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001499 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001500 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001501 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001502 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001503 writeq(val64, &bar0->tx_w_round_robin_4);
1504 break;
1505 case 5:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001506 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001507 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001508 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001509 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001510 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001511 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001512 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001513 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001514 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001515 writeq(val64, &bar0->tx_w_round_robin_4);
1516 break;
1517 case 6:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001518 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001519 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001520 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001521 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001522 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001523 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001524 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001525 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001526 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001527 writeq(val64, &bar0->tx_w_round_robin_4);
1528 break;
1529 case 7:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001530 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001531 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001532 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001533 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001534 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001535 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001536 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001537 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001538 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001539 writeq(val64, &bar0->tx_w_round_robin_4);
1540 break;
1541 case 8:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001542 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001543 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001544 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001545 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001546 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001547 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001548 writeq(val64, &bar0->tx_w_round_robin_4);
1549 break;
1550 }
1551
Ananda Rajub41477f2006-07-24 19:52:49 -04001552 /* Enable all configured Tx FIFO partitions */
Ananda Raju5d3213c2006-04-21 19:23:26 -04001553 val64 = readq(&bar0->tx_fifo_partition_0);
1554 val64 |= (TX_FIFO_PARTITION_EN);
1555 writeq(val64, &bar0->tx_fifo_partition_0);
1556
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001557 /* Filling the Rx round robin registers as per the
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001558 * number of Rings and steering based on QoS with
1559 * equal priority.
1560 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001561 switch (config->rx_ring_num) {
1562 case 1:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001563 val64 = 0x0;
1564 writeq(val64, &bar0->rx_w_round_robin_0);
1565 writeq(val64, &bar0->rx_w_round_robin_1);
1566 writeq(val64, &bar0->rx_w_round_robin_2);
1567 writeq(val64, &bar0->rx_w_round_robin_3);
1568 writeq(val64, &bar0->rx_w_round_robin_4);
1569
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001570 val64 = 0x8080808080808080ULL;
1571 writeq(val64, &bar0->rts_qos_steering);
1572 break;
1573 case 2:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001574 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001575 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001576 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001577 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001578 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001579 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001580 writeq(val64, &bar0->rx_w_round_robin_4);
1581
1582 val64 = 0x8080808040404040ULL;
1583 writeq(val64, &bar0->rts_qos_steering);
1584 break;
1585 case 3:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001586 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001587 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001588 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001589 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001590 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001591 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001592 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001593 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001594 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001595 writeq(val64, &bar0->rx_w_round_robin_4);
1596
1597 val64 = 0x8080804040402020ULL;
1598 writeq(val64, &bar0->rts_qos_steering);
1599 break;
1600 case 4:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001601 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001602 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001603 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001604 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001605 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001606 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001607 writeq(val64, &bar0->rx_w_round_robin_4);
1608
1609 val64 = 0x8080404020201010ULL;
1610 writeq(val64, &bar0->rts_qos_steering);
1611 break;
1612 case 5:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001613 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001614 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001615 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001616 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001617 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001618 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001619 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001620 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001621 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001622 writeq(val64, &bar0->rx_w_round_robin_4);
1623
1624 val64 = 0x8080404020201008ULL;
1625 writeq(val64, &bar0->rts_qos_steering);
1626 break;
1627 case 6:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001628 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001629 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001630 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001631 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001632 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001633 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001634 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001635 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001636 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001637 writeq(val64, &bar0->rx_w_round_robin_4);
1638
1639 val64 = 0x8080404020100804ULL;
1640 writeq(val64, &bar0->rts_qos_steering);
1641 break;
1642 case 7:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001643 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001644 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001645 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001646 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001647 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001648 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001649 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001650 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001651 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001652 writeq(val64, &bar0->rx_w_round_robin_4);
1653
1654 val64 = 0x8080402010080402ULL;
1655 writeq(val64, &bar0->rts_qos_steering);
1656 break;
1657 case 8:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001658 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001659 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001660 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001661 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001662 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001663 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001664 writeq(val64, &bar0->rx_w_round_robin_4);
1665
1666 val64 = 0x8040201008040201ULL;
1667 writeq(val64, &bar0->rts_qos_steering);
1668 break;
1669 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001670
1671 /* UDP Fix */
1672 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001673 for (i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001674 writeq(val64, &bar0->rts_frm_len_n[i]);
1675
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001676 /* Set the default rts frame length for the rings configured */
1677 val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22);
1678 for (i = 0 ; i < config->rx_ring_num ; i++)
1679 writeq(val64, &bar0->rts_frm_len_n[i]);
1680
1681 /* Set the frame length for the configured rings
1682 * desired by the user
1683 */
1684 for (i = 0; i < config->rx_ring_num; i++) {
1685 /* If rts_frm_len[i] == 0 then it is assumed that user not
1686 * specified frame length steering.
1687 * If the user provides the frame length then program
1688 * the rts_frm_len register for those values or else
1689 * leave it as it is.
1690 */
1691 if (rts_frm_len[i] != 0) {
1692 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]),
Joe Perchesd44570e2009-08-24 17:29:44 +00001693 &bar0->rts_frm_len_n[i]);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001694 }
1695 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001696
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001697 /* Disable differentiated services steering logic */
1698 for (i = 0; i < 64; i++) {
1699 if (rts_ds_steer(nic, i, 0) == FAILURE) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001700 DBG_PRINT(ERR_DBG,
1701 "%s: rts_ds_steer failed on codepoint %d\n",
1702 dev->name, i);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001703 return -ENODEV;
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001704 }
1705 }
1706
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001707 /* Program statistics memory */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001708 writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001710 if (nic->device_type == XFRAME_II_DEVICE) {
1711 val64 = STAT_BC(0x320);
1712 writeq(val64, &bar0->stat_byte_cnt);
1713 }
1714
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001715 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716 * Initializing the sampling rate for the device to calculate the
1717 * bandwidth utilization.
1718 */
1719 val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001720 MAC_RX_LINK_UTIL_VAL(rmac_util_period);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 writeq(val64, &bar0->mac_link_util);
1722
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001723 /*
1724 * Initializing the Transmit and Receive Traffic Interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 * Scheme.
1726 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001727
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001728 /* Initialize TTI */
1729 if (SUCCESS != init_tti(nic, nic->last_link_state))
1730 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001732 /* RTI Initialization */
1733 if (nic->device_type == XFRAME_II_DEVICE) {
1734 /*
1735 * Programmed to generate Apprx 500 Intrs per
1736 * second
1737 */
1738 int count = (nic->config.bus_speed * 125)/4;
1739 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
1740 } else
1741 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1742 val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001743 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1744 RTI_DATA1_MEM_RX_URNG_C(0x30) |
1745 RTI_DATA1_MEM_RX_TIMER_AC_EN;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001746
1747 writeq(val64, &bar0->rti_data1_mem);
1748
1749 val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
1750 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1751 if (nic->config.intr_type == MSI_X)
Joe Perchesd44570e2009-08-24 17:29:44 +00001752 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) |
1753 RTI_DATA2_MEM_RX_UFC_D(0x40));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001754 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001755 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) |
1756 RTI_DATA2_MEM_RX_UFC_D(0x80));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001757 writeq(val64, &bar0->rti_data2_mem);
1758
1759 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001760 val64 = RTI_CMD_MEM_WE |
1761 RTI_CMD_MEM_STROBE_NEW_CMD |
1762 RTI_CMD_MEM_OFFSET(i);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001763 writeq(val64, &bar0->rti_command_mem);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001764
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001765 /*
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001766 * Once the operation completes, the Strobe bit of the
1767 * command register will be reset. We poll for this
1768 * particular condition. We wait for a maximum of 500ms
1769 * for the operation to complete, if it's not complete
1770 * by then we return error.
1771 */
1772 time = 0;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00001773 while (true) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001774 val64 = readq(&bar0->rti_command_mem);
1775 if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD))
1776 break;
1777
1778 if (time > 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001779 DBG_PRINT(ERR_DBG, "%s: RTI init failed\n",
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001780 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001781 return -ENODEV;
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -07001782 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001783 time++;
1784 msleep(50);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001785 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 }
1787
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001788 /*
1789 * Initializing proper values as Pause threshold into all
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 * the 8 Queues on Rx side.
1791 */
1792 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3);
1793 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
1794
1795 /* Disable RMAC PAD STRIPPING */
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01001796 add = &bar0->mac_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 val64 = readq(&bar0->mac_cfg);
1798 val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
1799 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1800 writel((u32) (val64), add);
1801 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1802 writel((u32) (val64 >> 32), (add + 4));
1803 val64 = readq(&bar0->mac_cfg);
1804
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05001805 /* Enable FCS stripping by adapter */
1806 add = &bar0->mac_cfg;
1807 val64 = readq(&bar0->mac_cfg);
1808 val64 |= MAC_CFG_RMAC_STRIP_FCS;
1809 if (nic->device_type == XFRAME_II_DEVICE)
1810 writeq(val64, &bar0->mac_cfg);
1811 else {
1812 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1813 writel((u32) (val64), add);
1814 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1815 writel((u32) (val64 >> 32), (add + 4));
1816 }
1817
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001818 /*
1819 * Set the time value to be inserted in the pause frame
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 * generated by xena.
1821 */
1822 val64 = readq(&bar0->rmac_pause_cfg);
1823 val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1824 val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time);
1825 writeq(val64, &bar0->rmac_pause_cfg);
1826
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001827 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828 * Set the Threshold Limit for Generating the pause frame
1829 * If the amount of data in any Queue exceeds ratio of
1830 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1831 * pause frame is generated
1832 */
1833 val64 = 0;
1834 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001835 val64 |= (((u64)0xFF00 |
1836 nic->mac_control.mc_pause_threshold_q0q3)
1837 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 }
1839 writeq(val64, &bar0->mc_pause_thresh_q0q3);
1840
1841 val64 = 0;
1842 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001843 val64 |= (((u64)0xFF00 |
1844 nic->mac_control.mc_pause_threshold_q4q7)
1845 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846 }
1847 writeq(val64, &bar0->mc_pause_thresh_q4q7);
1848
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001849 /*
1850 * TxDMA will stop Read request if the number of read split has
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851 * exceeded the limit pointed by shared_splits
1852 */
1853 val64 = readq(&bar0->pic_control);
1854 val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
1855 writeq(val64, &bar0->pic_control);
1856
Ananda Raju863c11a2006-04-21 19:03:13 -04001857 if (nic->config.bus_speed == 266) {
1858 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
1859 writeq(0x0, &bar0->read_retry_delay);
1860 writeq(0x0, &bar0->write_retry_delay);
1861 }
1862
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001863 /*
1864 * Programming the Herc to split every write transaction
1865 * that does not start on an ADB to reduce disconnects.
1866 */
1867 if (nic->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05001868 val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
1869 MISC_LINK_STABILITY_PRD(3);
Ananda Raju863c11a2006-04-21 19:03:13 -04001870 writeq(val64, &bar0->misc_control);
1871 val64 = readq(&bar0->pic_control2);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07001872 val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15));
Ananda Raju863c11a2006-04-21 19:03:13 -04001873 writeq(val64, &bar0->pic_control2);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001874 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001875 if (strstr(nic->product_name, "CX4")) {
1876 val64 = TMAC_AVG_IPG(0x17);
1877 writeq(val64, &bar0->tmac_avg_ipg);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001878 }
1879
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880 return SUCCESS;
1881}
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001882#define LINK_UP_DOWN_INTERRUPT 1
1883#define MAC_RMAC_ERR_TIMER 2
1884
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001885static int s2io_link_fault_indication(struct s2io_nic *nic)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001886{
1887 if (nic->device_type == XFRAME_II_DEVICE)
1888 return LINK_UP_DOWN_INTERRUPT;
1889 else
1890 return MAC_RMAC_ERR_TIMER;
1891}
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07001892
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001893/**
1894 * do_s2io_write_bits - update alarm bits in alarm register
1895 * @value: alarm bits
1896 * @flag: interrupt status
1897 * @addr: address value
1898 * Description: update alarm bits in alarm register
1899 * Return Value:
1900 * NONE.
1901 */
1902static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr)
1903{
1904 u64 temp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001906 temp64 = readq(addr);
1907
Joe Perchesd44570e2009-08-24 17:29:44 +00001908 if (flag == ENABLE_INTRS)
1909 temp64 &= ~((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001910 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001911 temp64 |= ((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001912 writeq(temp64, addr);
1913}
1914
Stephen Hemminger43b7c452007-10-05 12:39:21 -07001915static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001916{
1917 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1918 register u64 gen_int_mask = 0;
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001919 u64 interruptible;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001920
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001921 writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001922 if (mask & TX_DMA_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001923 gen_int_mask |= TXDMA_INT_M;
1924
1925 do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001926 TXDMA_PCC_INT | TXDMA_TTI_INT |
1927 TXDMA_LSO_INT | TXDMA_TPA_INT |
1928 TXDMA_SM_INT, flag, &bar0->txdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001929
1930 do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001931 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
1932 PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag,
1933 &bar0->pfc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001934
1935 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001936 TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR |
1937 TDA_PCIX_ERR, flag, &bar0->tda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001938
1939 do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001940 PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
1941 PCC_N_SERR | PCC_6_COF_OV_ERR |
1942 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
1943 PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR |
1944 PCC_TXB_ECC_SG_ERR,
1945 flag, &bar0->pcc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001946
1947 do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001948 TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001949
1950 do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001951 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM |
1952 LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
1953 flag, &bar0->lso_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001954
1955 do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP,
Joe Perchesd44570e2009-08-24 17:29:44 +00001956 flag, &bar0->tpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001957
1958 do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001959 }
1960
1961 if (mask & TX_MAC_INTR) {
1962 gen_int_mask |= TXMAC_INT_M;
1963 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001964 &bar0->mac_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001965 do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001966 TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
1967 TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
1968 flag, &bar0->mac_tmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001969 }
1970
1971 if (mask & TX_XGXS_INTR) {
1972 gen_int_mask |= TXXGXS_INT_M;
1973 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001974 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001975 do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001976 TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
1977 flag, &bar0->xgxs_txgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001978 }
1979
1980 if (mask & RX_DMA_INTR) {
1981 gen_int_mask |= RXDMA_INT_M;
1982 do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M |
Joe Perchesd44570e2009-08-24 17:29:44 +00001983 RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M,
1984 flag, &bar0->rxdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001985 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001986 RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM |
1987 RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR |
1988 RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001989 do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn |
Joe Perchesd44570e2009-08-24 17:29:44 +00001990 PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn |
1991 PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag,
1992 &bar0->prc_pcix_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001993 do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001994 RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag,
1995 &bar0->rpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001996 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001997 RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM |
1998 RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR |
1999 RDA_FRM_ECC_SG_ERR |
2000 RDA_MISC_ERR|RDA_PCIX_ERR,
2001 flag, &bar0->rda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002002 do_s2io_write_bits(RTI_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00002003 RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
2004 flag, &bar0->rti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002005 }
2006
2007 if (mask & RX_MAC_INTR) {
2008 gen_int_mask |= RXMAC_INT_M;
2009 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002010 &bar0->mac_int_mask);
2011 interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
2012 RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
2013 RMAC_DOUBLE_ECC_ERR);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04002014 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER)
2015 interruptible |= RMAC_LINK_STATE_CHANGE_INT;
2016 do_s2io_write_bits(interruptible,
Joe Perchesd44570e2009-08-24 17:29:44 +00002017 flag, &bar0->mac_rmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002018 }
2019
Joe Perchesd44570e2009-08-24 17:29:44 +00002020 if (mask & RX_XGXS_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002021 gen_int_mask |= RXXGXS_INT_M;
2022 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002023 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002024 do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002025 &bar0->xgxs_rxgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002026 }
2027
2028 if (mask & MC_INTR) {
2029 gen_int_mask |= MC_INT_M;
Joe Perchesd44570e2009-08-24 17:29:44 +00002030 do_s2io_write_bits(MC_INT_MASK_MC_INT,
2031 flag, &bar0->mc_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002032 do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG |
Joe Perchesd44570e2009-08-24 17:29:44 +00002033 MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag,
2034 &bar0->mc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002035 }
2036 nic->general_int_mask = gen_int_mask;
2037
2038 /* Remove this line when alarm interrupts are enabled */
2039 nic->general_int_mask = 0;
2040}
Joe Perchesd44570e2009-08-24 17:29:44 +00002041
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002042/**
2043 * en_dis_able_nic_intrs - Enable or Disable the interrupts
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044 * @nic: device private variable,
2045 * @mask: A mask indicating which Intr block must be modified and,
2046 * @flag: A flag indicating whether to enable or disable the Intrs.
2047 * Description: This function will either disable or enable the interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002048 * depending on the flag argument. The mask argument can be used to
2049 * enable/disable any Intr block.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050 * Return Value: NONE.
2051 */
2052
2053static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
2054{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002055 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002056 register u64 temp64 = 0, intr_mask = 0;
2057
2058 intr_mask = nic->general_int_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002059
2060 /* Top level interrupt classification */
2061 /* PIC Interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002062 if (mask & TX_PIC_INTR) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063 /* Enable PIC Intrs in the general intr mask register */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002064 intr_mask |= TXPIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002065 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002066 /*
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002067 * If Hercules adapter enable GPIO otherwise
Ananda Rajub41477f2006-07-24 19:52:49 -04002068 * disable all PCIX, Flash, MDIO, IIC and GPIO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002069 * interrupts for now.
2070 * TODO
Linus Torvalds1da177e2005-04-16 15:20:36 -07002071 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002072 if (s2io_link_fault_indication(nic) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002073 LINK_UP_DOWN_INTERRUPT) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002074 do_s2io_write_bits(PIC_INT_GPIO, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002075 &bar0->pic_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002076 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002077 &bar0->gpio_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002078 } else
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002079 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002081 /*
2082 * Disable PIC Intrs in the general
2083 * intr mask register
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084 */
2085 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086 }
2087 }
2088
Linus Torvalds1da177e2005-04-16 15:20:36 -07002089 /* Tx traffic interrupts */
2090 if (mask & TX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002091 intr_mask |= TXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002093 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002094 * Enable all the Tx side interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002095 * writing 0 Enables all 64 TX interrupt levels
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 */
2097 writeq(0x0, &bar0->tx_traffic_mask);
2098 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002099 /*
2100 * Disable Tx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101 * register.
2102 */
2103 writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104 }
2105 }
2106
2107 /* Rx traffic interrupts */
2108 if (mask & RX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002109 intr_mask |= RXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110 if (flag == ENABLE_INTRS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 /* writing 0 Enables all 8 RX interrupt levels */
2112 writeq(0x0, &bar0->rx_traffic_mask);
2113 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002114 /*
2115 * Disable Rx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116 * register.
2117 */
2118 writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 }
2120 }
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002121
2122 temp64 = readq(&bar0->general_int_mask);
2123 if (flag == ENABLE_INTRS)
Joe Perchesd44570e2009-08-24 17:29:44 +00002124 temp64 &= ~((u64)intr_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002125 else
2126 temp64 = DISABLE_ALL_INTRS;
2127 writeq(temp64, &bar0->general_int_mask);
2128
2129 nic->general_int_mask = readq(&bar0->general_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130}
2131
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002132/**
2133 * verify_pcc_quiescent- Checks for PCC quiescent state
2134 * Return: 1 If PCC is quiescence
2135 * 0 If PCC is not quiescence
2136 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002137static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002138{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002139 int ret = 0, herc;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002140 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002141 u64 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002142
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002143 herc = (sp->device_type == XFRAME_II_DEVICE);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002144
Tobias Klauserf957bcf2009-06-04 23:07:59 +00002145 if (flag == false) {
Auke Kok44c10132007-06-08 15:46:36 -07002146 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002147 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002148 ret = 1;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002149 } else {
2150 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002151 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002152 }
2153 } else {
Auke Kok44c10132007-06-08 15:46:36 -07002154 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002155 if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002156 ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002157 ret = 1;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002158 } else {
2159 if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002160 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002161 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002162 }
2163 }
2164
2165 return ret;
2166}
2167/**
2168 * verify_xena_quiescence - Checks whether the H/W is ready
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169 * Description: Returns whether the H/W is ready to go or not. Depending
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002170 * on whether adapter enable bit was written or not the comparison
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 * differs and the calling function passes the input argument flag to
2172 * indicate this.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002173 * Return: 1 If xena is quiescence
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174 * 0 If Xena is not quiescence
2175 */
2176
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002177static int verify_xena_quiescence(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002179 int mode;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002180 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002181 u64 val64 = readq(&bar0->adapter_status);
2182 mode = s2io_verify_pci_mode(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002184 if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002185 DBG_PRINT(ERR_DBG, "TDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002186 return 0;
2187 }
2188 if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002189 DBG_PRINT(ERR_DBG, "RDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002190 return 0;
2191 }
2192 if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002193 DBG_PRINT(ERR_DBG, "PFC is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002194 return 0;
2195 }
2196 if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002197 DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002198 return 0;
2199 }
2200 if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002201 DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002202 return 0;
2203 }
2204 if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002205 DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002206 return 0;
2207 }
2208 if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002209 DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002210 return 0;
2211 }
2212 if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002213 DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002214 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215 }
2216
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002217 /*
2218 * In PCI 33 mode, the P_PLL is not used, and therefore,
2219 * the the P_PLL_LOCK bit in the adapter_status register will
2220 * not be asserted.
2221 */
2222 if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002223 sp->device_type == XFRAME_II_DEVICE &&
2224 mode != PCI_MODE_PCI_33) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002225 DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002226 return 0;
2227 }
2228 if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002229 ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002230 DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002231 return 0;
2232 }
2233 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234}
2235
2236/**
2237 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2238 * @sp: Pointer to device specifc structure
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002239 * Description :
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240 * New procedure to clear mac address reading problems on Alpha platforms
2241 *
2242 */
2243
Joe Perchesd44570e2009-08-24 17:29:44 +00002244static void fix_mac_address(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002245{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002246 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247 u64 val64;
2248 int i = 0;
2249
2250 while (fix_mac[i] != END_SIGN) {
2251 writeq(fix_mac[i++], &bar0->gpio_control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002252 udelay(10);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253 val64 = readq(&bar0->gpio_control);
2254 }
2255}
2256
2257/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002258 * start_nic - Turns the device on
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002260 * Description:
2261 * This function actually turns the device on. Before this function is
2262 * called,all Registers are configured from their reset states
2263 * and shared memory is allocated but the NIC is still quiescent. On
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264 * calling this function, the device interrupts are cleared and the NIC is
2265 * literally switched on by writing into the adapter control register.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002266 * Return Value:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267 * SUCCESS on success and -1 on failure.
2268 */
2269
2270static int start_nic(struct s2io_nic *nic)
2271{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002272 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273 struct net_device *dev = nic->dev;
2274 register u64 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002275 u16 subid, i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002276 struct config_param *config = &nic->config;
2277 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278
2279 /* PRC Initialization and configuration */
2280 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002281 struct ring_info *ring = &mac_control->rings[i];
2282
Joe Perchesd44570e2009-08-24 17:29:44 +00002283 writeq((u64)ring->rx_blocks[0].block_dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284 &bar0->prc_rxd0_n[i]);
2285
2286 val64 = readq(&bar0->prc_ctrl_n[i]);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002287 if (nic->rxd_mode == RXD_MODE_1)
2288 val64 |= PRC_CTRL_RC_ENABLED;
2289 else
2290 val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
Ananda Raju863c11a2006-04-21 19:03:13 -04002291 if (nic->device_type == XFRAME_II_DEVICE)
2292 val64 |= PRC_CTRL_GROUP_READS;
2293 val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
2294 val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295 writeq(val64, &bar0->prc_ctrl_n[i]);
2296 }
2297
Ananda Rajuda6971d2005-10-31 16:55:31 -05002298 if (nic->rxd_mode == RXD_MODE_3B) {
2299 /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
2300 val64 = readq(&bar0->rx_pa_cfg);
2301 val64 |= RX_PA_CFG_IGNORE_L2_ERR;
2302 writeq(val64, &bar0->rx_pa_cfg);
2303 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002305 if (vlan_tag_strip == 0) {
2306 val64 = readq(&bar0->rx_pa_cfg);
2307 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
2308 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03002309 nic->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002310 }
2311
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002312 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002313 * Enabling MC-RLDRAM. After enabling the device, we timeout
2314 * for around 100ms, which is approximately the time required
2315 * for the device to be ready for operation.
2316 */
2317 val64 = readq(&bar0->mc_rldram_mrs);
2318 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE;
2319 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
2320 val64 = readq(&bar0->mc_rldram_mrs);
2321
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002322 msleep(100); /* Delay by around 100 ms. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323
2324 /* Enabling ECC Protection. */
2325 val64 = readq(&bar0->adapter_control);
2326 val64 &= ~ADAPTER_ECC_EN;
2327 writeq(val64, &bar0->adapter_control);
2328
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002329 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002330 * Verify if the device is ready to be enabled, if so enable
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331 * it.
2332 */
2333 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002334 if (!verify_xena_quiescence(nic)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002335 DBG_PRINT(ERR_DBG, "%s: device is not ready, "
2336 "Adapter status reads: 0x%llx\n",
2337 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002338 return FAILURE;
2339 }
2340
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002341 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342 * With some switches, link might be already up at this point.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002343 * Because of this weird behavior, when we enable laser,
2344 * we may not get link. We need to handle this. We cannot
2345 * figure out which switch is misbehaving. So we are forced to
2346 * make a global change.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347 */
2348
2349 /* Enabling Laser. */
2350 val64 = readq(&bar0->adapter_control);
2351 val64 |= ADAPTER_EOI_TX_ON;
2352 writeq(val64, &bar0->adapter_control);
2353
Ananda Rajuc92ca042006-04-21 19:18:03 -04002354 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
2355 /*
2356 * Dont see link state interrupts initally on some switches,
2357 * so directly scheduling the link state task here.
2358 */
2359 schedule_work(&nic->set_link_task);
2360 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361 /* SXE-002: Initialize link and activity LED */
2362 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07002363 if (((subid & 0xFF) >= 0x07) &&
2364 (nic->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365 val64 = readq(&bar0->gpio_control);
2366 val64 |= 0x0000800000000000ULL;
2367 writeq(val64, &bar0->gpio_control);
2368 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01002369 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 }
2371
Linus Torvalds1da177e2005-04-16 15:20:36 -07002372 return SUCCESS;
2373}
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002374/**
2375 * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
2376 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002377static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
2378 struct TxD *txdlp, int get_off)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002379{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002380 struct s2io_nic *nic = fifo_data->nic;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002381 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002382 struct TxD *txds;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002383 u16 j, frg_cnt;
2384
2385 txds = txdlp;
Surjit Reang2fda0962008-01-24 02:08:59 -08002386 if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002387 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
2388 sizeof(u64), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002389 txds++;
2390 }
2391
Joe Perchesd44570e2009-08-24 17:29:44 +00002392 skb = (struct sk_buff *)((unsigned long)txds->Host_Control);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002393 if (!skb) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002394 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002395 return NULL;
2396 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002397 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
Eric Dumazete743d312010-04-14 15:59:40 -07002398 skb_headlen(skb), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002399 frg_cnt = skb_shinfo(skb)->nr_frags;
2400 if (frg_cnt) {
2401 txds++;
2402 for (j = 0; j < frg_cnt; j++, txds++) {
2403 skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
2404 if (!txds->Buffer_Pointer)
2405 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00002406 pci_unmap_page(nic->pdev,
2407 (dma_addr_t)txds->Buffer_Pointer,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002408 frag->size, PCI_DMA_TODEVICE);
2409 }
2410 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002411 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
2412 return skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002413}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002414
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002415/**
2416 * free_tx_buffers - Free all queued Tx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002418 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002419 * Free all queued Tx buffers.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002420 * Return Value: void
Joe Perchesd44570e2009-08-24 17:29:44 +00002421 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002422
2423static void free_tx_buffers(struct s2io_nic *nic)
2424{
2425 struct net_device *dev = nic->dev;
2426 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002427 struct TxD *txdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428 int i, j;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002429 int cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002430 struct config_param *config = &nic->config;
2431 struct mac_info *mac_control = &nic->mac_control;
2432 struct stat_block *stats = mac_control->stats_info;
2433 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434
2435 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002436 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
2437 struct fifo_info *fifo = &mac_control->fifos[i];
Surjit Reang2fda0962008-01-24 02:08:59 -08002438 unsigned long flags;
Joe Perches13d866a2009-08-24 17:29:41 +00002439
2440 spin_lock_irqsave(&fifo->tx_lock, flags);
2441 for (j = 0; j < tx_cfg->fifo_len; j++) {
2442 txdp = (struct TxD *)fifo->list_info[j].list_virt_addr;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002443 skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
2444 if (skb) {
Joe Perchesffb5df62009-08-24 17:29:47 +00002445 swstats->mem_freed += skb->truesize;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002446 dev_kfree_skb(skb);
2447 cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002448 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449 }
2450 DBG_PRINT(INTR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00002451 "%s: forcibly freeing %d skbs on FIFO%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452 dev->name, cnt, i);
Joe Perches13d866a2009-08-24 17:29:41 +00002453 fifo->tx_curr_get_info.offset = 0;
2454 fifo->tx_curr_put_info.offset = 0;
2455 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002456 }
2457}
2458
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002459/**
2460 * stop_nic - To stop the nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07002461 * @nic ; device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002462 * Description:
2463 * This function does exactly the opposite of what the start_nic()
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464 * function does. This function is called to stop the device.
2465 * Return Value:
2466 * void.
2467 */
2468
2469static void stop_nic(struct s2io_nic *nic)
2470{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002471 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002472 register u64 val64 = 0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04002473 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002474
2475 /* Disable all interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002476 en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS);
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07002477 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002478 interruptible |= TX_PIC_INTR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002479 en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
2480
Ananda Raju5d3213c2006-04-21 19:23:26 -04002481 /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
2482 val64 = readq(&bar0->adapter_control);
2483 val64 &= ~(ADAPTER_CNTL_EN);
2484 writeq(val64, &bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002485}
2486
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002487/**
2488 * fill_rx_buffers - Allocates the Rx side skbs
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002489 * @ring_info: per ring structure
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002490 * @from_card_up: If this is true, we will map the buffer to get
2491 * the dma address for buf0 and buf1 to give it to the card.
2492 * Else we will sync the already mapped buffer to give it to the card.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002493 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002494 * The function allocates Rx side skbs and puts the physical
2495 * address of these buffers into the RxD buffer pointers, so that the NIC
2496 * can DMA the received frame into these locations.
2497 * The NIC supports 3 receive modes, viz
2498 * 1. single buffer,
2499 * 2. three buffer and
2500 * 3. Five buffer modes.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002501 * Each mode defines how many fragments the received frame will be split
2502 * up into by the NIC. The frame is split into L3 header, L4 Header,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002503 * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself
2504 * is split into 3 fragments. As of now only single buffer mode is
2505 * supported.
2506 * Return Value:
2507 * SUCCESS on success or an appropriate -ve value on failure.
2508 */
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002509static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
Joe Perchesd44570e2009-08-24 17:29:44 +00002510 int from_card_up)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002511{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002513 struct RxD_t *rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002514 int off, size, block_no, block_no1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002515 u32 alloc_tab = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002516 u32 alloc_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002517 u64 tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002518 struct buffAdd *ba;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002519 struct RxD_t *first_rxdp = NULL;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002520 u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002521 int rxd_index = 0;
Veena Parat6d517a22007-07-23 02:20:51 -04002522 struct RxD1 *rxdp1;
2523 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002524 struct swStat *swstats = &ring->nic->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002526 alloc_cnt = ring->pkt_cnt - ring->rx_bufs_left;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002527
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002528 block_no1 = ring->rx_curr_get_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002529 while (alloc_tab < alloc_cnt) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002530 block_no = ring->rx_curr_put_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002532 off = ring->rx_curr_put_info.offset;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002533
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002534 rxdp = ring->rx_blocks[block_no].rxds[off].virt_addr;
2535
2536 rxd_index = off + 1;
2537 if (block_no)
2538 rxd_index += (block_no * ring->rxd_count);
2539
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002540 if ((block_no == block_no1) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002541 (off == ring->rx_curr_get_info.offset) &&
2542 (rxdp->Host_Control)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002543 DBG_PRINT(INTR_DBG, "%s: Get and Put info equated\n",
2544 ring->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002545 goto end;
2546 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002547 if (off && (off == ring->rxd_count)) {
2548 ring->rx_curr_put_info.block_index++;
2549 if (ring->rx_curr_put_info.block_index ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002550 ring->block_count)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002551 ring->rx_curr_put_info.block_index = 0;
2552 block_no = ring->rx_curr_put_info.block_index;
2553 off = 0;
2554 ring->rx_curr_put_info.offset = off;
2555 rxdp = ring->rx_blocks[block_no].block_virt_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556 DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002557 ring->dev->name, rxdp);
2558
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559 }
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002560
Ananda Rajuda6971d2005-10-31 16:55:31 -05002561 if ((rxdp->Control_1 & RXD_OWN_XENA) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002562 ((ring->rxd_mode == RXD_MODE_3B) &&
2563 (rxdp->Control_2 & s2BIT(0)))) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002564 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002565 goto end;
2566 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002567 /* calculate size of skb based on ring mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002568 size = ring->mtu +
2569 HEADER_ETHERNET_II_802_3_SIZE +
2570 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002571 if (ring->rxd_mode == RXD_MODE_1)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002572 size += NET_IP_ALIGN;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002573 else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002574 size = ring->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575
Ananda Rajuda6971d2005-10-31 16:55:31 -05002576 /* allocate skb */
2577 skb = dev_alloc_skb(size);
Joe Perchesd44570e2009-08-24 17:29:44 +00002578 if (!skb) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002579 DBG_PRINT(INFO_DBG, "%s: Could not allocate skb\n",
2580 ring->dev->name);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002581 if (first_rxdp) {
2582 wmb();
2583 first_rxdp->Control_1 |= RXD_OWN_XENA;
2584 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002585 swstats->mem_alloc_fail_cnt++;
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002586
Ananda Rajuda6971d2005-10-31 16:55:31 -05002587 return -ENOMEM ;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002588 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002589 swstats->mem_allocated += skb->truesize;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002590
2591 if (ring->rxd_mode == RXD_MODE_1) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002592 /* 1 buffer mode - normal operation mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002593 rxdp1 = (struct RxD1 *)rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002594 memset(rxdp, 0, sizeof(struct RxD1));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002595 skb_reserve(skb, NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002596 rxdp1->Buffer0_ptr =
2597 pci_map_single(ring->pdev, skb->data,
2598 size - NET_IP_ALIGN,
2599 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002600 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002601 rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002602 goto pci_map_failed;
2603
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002604 rxdp->Control_2 =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002605 SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002606 rxdp->Host_Control = (unsigned long)skb;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002607 } else if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002608 /*
Veena Parat6d517a22007-07-23 02:20:51 -04002609 * 2 buffer mode -
2610 * 2 buffer mode provides 128
Ananda Rajuda6971d2005-10-31 16:55:31 -05002611 * byte aligned receive buffers.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002612 */
2613
Joe Perchesd44570e2009-08-24 17:29:44 +00002614 rxdp3 = (struct RxD3 *)rxdp;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002615 /* save buffer pointers to avoid frequent dma mapping */
Veena Parat6d517a22007-07-23 02:20:51 -04002616 Buffer0_ptr = rxdp3->Buffer0_ptr;
2617 Buffer1_ptr = rxdp3->Buffer1_ptr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002618 memset(rxdp, 0, sizeof(struct RxD3));
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002619 /* restore the buffer pointers for dma sync*/
Veena Parat6d517a22007-07-23 02:20:51 -04002620 rxdp3->Buffer0_ptr = Buffer0_ptr;
2621 rxdp3->Buffer1_ptr = Buffer1_ptr;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002622
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002623 ba = &ring->ba[block_no][off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05002624 skb_reserve(skb, BUF0_LEN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002625 tmp = (u64)(unsigned long)skb->data;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002626 tmp += ALIGN_SIZE;
2627 tmp &= ~ALIGN_SIZE;
2628 skb->data = (void *) (unsigned long)tmp;
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -07002629 skb_reset_tail_pointer(skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002630
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002631 if (from_card_up) {
Veena Parat6d517a22007-07-23 02:20:51 -04002632 rxdp3->Buffer0_ptr =
Joe Perchesd44570e2009-08-24 17:29:44 +00002633 pci_map_single(ring->pdev, ba->ba_0,
2634 BUF0_LEN,
2635 PCI_DMA_FROMDEVICE);
2636 if (pci_dma_mapping_error(nic->pdev,
2637 rxdp3->Buffer0_ptr))
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002638 goto pci_map_failed;
2639 } else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002640 pci_dma_sync_single_for_device(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002641 (dma_addr_t)rxdp3->Buffer0_ptr,
2642 BUF0_LEN,
2643 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002644
Ananda Rajuda6971d2005-10-31 16:55:31 -05002645 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002646 if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002647 /* Two buffer mode */
2648
2649 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002650 * Buffer2 will have L3/L4 header plus
Ananda Rajuda6971d2005-10-31 16:55:31 -05002651 * L4 payload
2652 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002653 rxdp3->Buffer2_ptr = pci_map_single(ring->pdev,
2654 skb->data,
2655 ring->mtu + 4,
2656 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002657
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002658 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002659 rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002660 goto pci_map_failed;
2661
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002662 if (from_card_up) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002663 rxdp3->Buffer1_ptr =
2664 pci_map_single(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002665 ba->ba_1,
2666 BUF1_LEN,
2667 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002668
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002669 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002670 rxdp3->Buffer1_ptr)) {
2671 pci_unmap_single(ring->pdev,
2672 (dma_addr_t)(unsigned long)
2673 skb->data,
2674 ring->mtu + 4,
2675 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002676 goto pci_map_failed;
2677 }
Ananda Raju75c30b12006-07-24 19:55:09 -04002678 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002679 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
2680 rxdp->Control_2 |= SET_BUFFER2_SIZE_3
Joe Perchesd44570e2009-08-24 17:29:44 +00002681 (ring->mtu + 4);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002682 }
Jiri Slabyb7b5a122007-10-18 23:40:29 -07002683 rxdp->Control_2 |= s2BIT(0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002684 rxdp->Host_Control = (unsigned long) (skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002685 }
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002686 if (alloc_tab & ((1 << rxsync_frequency) - 1))
2687 rxdp->Control_1 |= RXD_OWN_XENA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002688 off++;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002689 if (off == (ring->rxd_count + 1))
Ananda Rajuda6971d2005-10-31 16:55:31 -05002690 off = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002691 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002692
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002693 rxdp->Control_2 |= SET_RXD_MARKER;
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002694 if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) {
2695 if (first_rxdp) {
2696 wmb();
2697 first_rxdp->Control_1 |= RXD_OWN_XENA;
2698 }
2699 first_rxdp = rxdp;
2700 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002701 ring->rx_bufs_left += 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002702 alloc_tab++;
2703 }
2704
Joe Perchesd44570e2009-08-24 17:29:44 +00002705end:
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002706 /* Transfer ownership of first descriptor to adapter just before
2707 * exiting. Before that, use memory barrier so that ownership
2708 * and other fields are seen by adapter correctly.
2709 */
2710 if (first_rxdp) {
2711 wmb();
2712 first_rxdp->Control_1 |= RXD_OWN_XENA;
2713 }
2714
Linus Torvalds1da177e2005-04-16 15:20:36 -07002715 return SUCCESS;
Joe Perchesd44570e2009-08-24 17:29:44 +00002716
Veena Parat491abf22007-07-23 02:37:14 -04002717pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00002718 swstats->pci_map_fail_cnt++;
2719 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04002720 dev_kfree_skb_irq(skb);
2721 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722}
2723
Ananda Rajuda6971d2005-10-31 16:55:31 -05002724static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
2725{
2726 struct net_device *dev = sp->dev;
2727 int j;
2728 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002729 struct RxD_t *rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002730 struct buffAdd *ba;
Veena Parat6d517a22007-07-23 02:20:51 -04002731 struct RxD1 *rxdp1;
2732 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002733 struct mac_info *mac_control = &sp->mac_control;
2734 struct stat_block *stats = mac_control->stats_info;
2735 struct swStat *swstats = &stats->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002736
Ananda Rajuda6971d2005-10-31 16:55:31 -05002737 for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
2738 rxdp = mac_control->rings[ring_no].
Joe Perchesd44570e2009-08-24 17:29:44 +00002739 rx_blocks[blk].rxds[j].virt_addr;
2740 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
2741 if (!skb)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002742 continue;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002743 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002744 rxdp1 = (struct RxD1 *)rxdp;
2745 pci_unmap_single(sp->pdev,
2746 (dma_addr_t)rxdp1->Buffer0_ptr,
2747 dev->mtu +
2748 HEADER_ETHERNET_II_802_3_SIZE +
2749 HEADER_802_2_SIZE + HEADER_SNAP_SIZE,
2750 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002751 memset(rxdp, 0, sizeof(struct RxD1));
Joe Perchesd44570e2009-08-24 17:29:44 +00002752 } else if (sp->rxd_mode == RXD_MODE_3B) {
2753 rxdp3 = (struct RxD3 *)rxdp;
2754 ba = &mac_control->rings[ring_no].ba[blk][j];
2755 pci_unmap_single(sp->pdev,
2756 (dma_addr_t)rxdp3->Buffer0_ptr,
2757 BUF0_LEN,
2758 PCI_DMA_FROMDEVICE);
2759 pci_unmap_single(sp->pdev,
2760 (dma_addr_t)rxdp3->Buffer1_ptr,
2761 BUF1_LEN,
2762 PCI_DMA_FROMDEVICE);
2763 pci_unmap_single(sp->pdev,
2764 (dma_addr_t)rxdp3->Buffer2_ptr,
2765 dev->mtu + 4,
2766 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002767 memset(rxdp, 0, sizeof(struct RxD3));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002768 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002769 swstats->mem_freed += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002770 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002771 mac_control->rings[ring_no].rx_bufs_left -= 1;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002772 }
2773}
2774
Linus Torvalds1da177e2005-04-16 15:20:36 -07002775/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002776 * free_rx_buffers - Frees all Rx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002777 * @sp: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002778 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002779 * This function will free all Rx buffers allocated by host.
2780 * Return Value:
2781 * NONE.
2782 */
2783
2784static void free_rx_buffers(struct s2io_nic *sp)
2785{
2786 struct net_device *dev = sp->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002787 int i, blk = 0, buf_cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002788 struct config_param *config = &sp->config;
2789 struct mac_info *mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002790
2791 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002792 struct ring_info *ring = &mac_control->rings[i];
2793
Ananda Rajuda6971d2005-10-31 16:55:31 -05002794 for (blk = 0; blk < rx_ring_sz[i]; blk++)
Joe Perchesd44570e2009-08-24 17:29:44 +00002795 free_rxd_blk(sp, i, blk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002796
Joe Perches13d866a2009-08-24 17:29:41 +00002797 ring->rx_curr_put_info.block_index = 0;
2798 ring->rx_curr_get_info.block_index = 0;
2799 ring->rx_curr_put_info.offset = 0;
2800 ring->rx_curr_get_info.offset = 0;
2801 ring->rx_bufs_left = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00002802 DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002803 dev->name, buf_cnt, i);
2804 }
2805}
2806
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002807static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring)
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002808{
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002809 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002810 DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n",
2811 ring->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002812 }
2813 return 0;
2814}
2815
Linus Torvalds1da177e2005-04-16 15:20:36 -07002816/**
2817 * s2io_poll - Rx interrupt handler for NAPI support
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002818 * @napi : pointer to the napi structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002819 * @budget : The number of packets that were budgeted to be processed
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820 * during one pass through the 'Poll" function.
2821 * Description:
2822 * Comes into picture only if NAPI support has been incorporated. It does
2823 * the same thing that rx_intr_handler does, but not in a interrupt context
2824 * also It will process only a given number of packets.
2825 * Return value:
2826 * 0 on success and 1 if there are No Rx packets to be processed.
2827 */
2828
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002829static int s2io_poll_msix(struct napi_struct *napi, int budget)
2830{
2831 struct ring_info *ring = container_of(napi, struct ring_info, napi);
2832 struct net_device *dev = ring->dev;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002833 int pkts_processed = 0;
Al Viro1a79d1c2008-06-02 10:59:02 +01002834 u8 __iomem *addr = NULL;
2835 u8 val8 = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08002836 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002837 struct XENA_dev_config __iomem *bar0 = nic->bar0;
2838 int budget_org = budget;
2839
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002840 if (unlikely(!is_s2io_card_up(nic)))
2841 return 0;
2842
2843 pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002844 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002845
2846 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002847 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002848 /*Re Enable MSI-Rx Vector*/
Al Viro1a79d1c2008-06-02 10:59:02 +01002849 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002850 addr += 7 - ring->ring_no;
2851 val8 = (ring->ring_no == 0) ? 0x3f : 0xbf;
2852 writeb(val8, addr);
2853 val8 = readb(addr);
2854 }
2855 return pkts_processed;
2856}
Joe Perchesd44570e2009-08-24 17:29:44 +00002857
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002858static int s2io_poll_inta(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002859{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002860 struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002861 int pkts_processed = 0;
2862 int ring_pkts_processed, i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002863 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002864 int budget_org = budget;
Joe Perchesffb5df62009-08-24 17:29:47 +00002865 struct config_param *config = &nic->config;
2866 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002867
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002868 if (unlikely(!is_s2io_card_up(nic)))
2869 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002870
2871 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002872 struct ring_info *ring = &mac_control->rings[i];
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002873 ring_pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002874 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002875 pkts_processed += ring_pkts_processed;
2876 budget -= ring_pkts_processed;
2877 if (budget <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002878 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002879 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002880 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002881 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002882 /* Re enable the Rx interrupts for the ring */
2883 writeq(0, &bar0->rx_traffic_mask);
2884 readl(&bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002885 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002886 return pkts_processed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002887}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002888
Ananda Rajub41477f2006-07-24 19:52:49 -04002889#ifdef CONFIG_NET_POLL_CONTROLLER
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002890/**
Ananda Rajub41477f2006-07-24 19:52:49 -04002891 * s2io_netpoll - netpoll event handler entry point
Brian Haley612eff02006-06-15 14:36:36 -04002892 * @dev : pointer to the device structure.
2893 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04002894 * This function will be called by upper layer to check for events on the
2895 * interface in situations where interrupts are disabled. It is used for
2896 * specific in-kernel networking tasks, such as remote consoles and kernel
2897 * debugging over the network (example netdump in RedHat).
Brian Haley612eff02006-06-15 14:36:36 -04002898 */
Brian Haley612eff02006-06-15 14:36:36 -04002899static void s2io_netpoll(struct net_device *dev)
2900{
Wang Chen4cf16532008-11-12 23:38:14 -08002901 struct s2io_nic *nic = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002902 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ananda Rajub41477f2006-07-24 19:52:49 -04002903 u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
Brian Haley612eff02006-06-15 14:36:36 -04002904 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002905 struct config_param *config = &nic->config;
2906 struct mac_info *mac_control = &nic->mac_control;
Brian Haley612eff02006-06-15 14:36:36 -04002907
Linas Vepstasd796fdb2007-05-14 18:37:30 -05002908 if (pci_channel_offline(nic->pdev))
2909 return;
2910
Brian Haley612eff02006-06-15 14:36:36 -04002911 disable_irq(dev->irq);
2912
Brian Haley612eff02006-06-15 14:36:36 -04002913 writeq(val64, &bar0->rx_traffic_int);
Ananda Rajub41477f2006-07-24 19:52:49 -04002914 writeq(val64, &bar0->tx_traffic_int);
Brian Haley612eff02006-06-15 14:36:36 -04002915
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002916 /* we need to free up the transmitted skbufs or else netpoll will
Ananda Rajub41477f2006-07-24 19:52:49 -04002917 * run out of skbs and will fail and eventually netpoll application such
2918 * as netdump will fail.
2919 */
2920 for (i = 0; i < config->tx_fifo_num; i++)
2921 tx_intr_handler(&mac_control->fifos[i]);
2922
2923 /* check for received packet and indicate up to network */
Joe Perches13d866a2009-08-24 17:29:41 +00002924 for (i = 0; i < config->rx_ring_num; i++) {
2925 struct ring_info *ring = &mac_control->rings[i];
2926
2927 rx_intr_handler(ring, 0);
2928 }
Brian Haley612eff02006-06-15 14:36:36 -04002929
2930 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002931 struct ring_info *ring = &mac_control->rings[i];
2932
2933 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002934 DBG_PRINT(INFO_DBG,
2935 "%s: Out of memory in Rx Netpoll!!\n",
2936 dev->name);
Brian Haley612eff02006-06-15 14:36:36 -04002937 break;
2938 }
2939 }
Brian Haley612eff02006-06-15 14:36:36 -04002940 enable_irq(dev->irq);
Brian Haley612eff02006-06-15 14:36:36 -04002941}
2942#endif
2943
2944/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002945 * rx_intr_handler - Rx interrupt handler
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002946 * @ring_info: per ring structure.
2947 * @budget: budget for napi processing.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002948 * Description:
2949 * If the interrupt is because of a received frame or if the
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950 * receive ring contains fresh as yet un-processed frames,this function is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002951 * called. It picks out the RxD at which place the last Rx processing had
2952 * stopped and sends the skb to the OSM's Rx handler and then increments
Linus Torvalds1da177e2005-04-16 15:20:36 -07002953 * the offset.
2954 * Return Value:
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002955 * No. of napi packets processed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002956 */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002957static int rx_intr_handler(struct ring_info *ring_data, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002958{
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002959 int get_block, put_block;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002960 struct rx_curr_get_info get_info, put_info;
2961 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002962 struct sk_buff *skb;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002963 int pkt_cnt = 0, napi_pkts = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002964 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00002965 struct RxD1 *rxdp1;
2966 struct RxD3 *rxdp3;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002967
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002968 get_info = ring_data->rx_curr_get_info;
2969 get_block = get_info.block_index;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002970 memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002971 put_block = put_info.block_index;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002972 rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002973
Ananda Rajuda6971d2005-10-31 16:55:31 -05002974 while (RXD_IS_UP2DT(rxdp)) {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002975 /*
2976 * If your are next to put index then it's
2977 * FIFO full condition
2978 */
Ananda Rajuda6971d2005-10-31 16:55:31 -05002979 if ((get_block == put_block) &&
2980 (get_info.offset + 1) == put_info.offset) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002981 DBG_PRINT(INTR_DBG, "%s: Ring Full\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00002982 ring_data->dev->name);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002983 break;
2984 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002985 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002986 if (skb == NULL) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002987 DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002988 ring_data->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002989 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002990 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002991 if (ring_data->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002992 rxdp1 = (struct RxD1 *)rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002993 pci_unmap_single(ring_data->pdev, (dma_addr_t)
Joe Perchesd44570e2009-08-24 17:29:44 +00002994 rxdp1->Buffer0_ptr,
2995 ring_data->mtu +
2996 HEADER_ETHERNET_II_802_3_SIZE +
2997 HEADER_802_2_SIZE +
2998 HEADER_SNAP_SIZE,
2999 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003000 } else if (ring_data->rxd_mode == RXD_MODE_3B) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003001 rxdp3 = (struct RxD3 *)rxdp;
3002 pci_dma_sync_single_for_cpu(ring_data->pdev,
3003 (dma_addr_t)rxdp3->Buffer0_ptr,
3004 BUF0_LEN,
3005 PCI_DMA_FROMDEVICE);
3006 pci_unmap_single(ring_data->pdev,
3007 (dma_addr_t)rxdp3->Buffer2_ptr,
3008 ring_data->mtu + 4,
3009 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05003010 }
Ananda Raju863c11a2006-04-21 19:03:13 -04003011 prefetch(skb->data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003012 rx_osm_handler(ring_data, rxdp);
3013 get_info.offset++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003014 ring_data->rx_curr_get_info.offset = get_info.offset;
3015 rxdp = ring_data->rx_blocks[get_block].
Joe Perchesd44570e2009-08-24 17:29:44 +00003016 rxds[get_info.offset].virt_addr;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003017 if (get_info.offset == rxd_count[ring_data->rxd_mode]) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003018 get_info.offset = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003019 ring_data->rx_curr_get_info.offset = get_info.offset;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003020 get_block++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003021 if (get_block == ring_data->block_count)
3022 get_block = 0;
3023 ring_data->rx_curr_get_info.block_index = get_block;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003024 rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
3025 }
3026
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003027 if (ring_data->nic->config.napi) {
3028 budget--;
3029 napi_pkts++;
3030 if (!budget)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003031 break;
3032 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003033 pkt_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003034 if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts))
3035 break;
3036 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003037 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003038 /* Clear all LRO sessions before exiting */
Joe Perchesd44570e2009-08-24 17:29:44 +00003039 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003040 struct lro *lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003041 if (lro->in_use) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003042 update_L3L4_header(ring_data->nic, lro);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05003043 queue_rx_frame(lro->parent, lro->vlan_tag);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003044 clear_lro_session(lro);
3045 }
3046 }
3047 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003048 return napi_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003050
3051/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003052 * tx_intr_handler - Transmit interrupt handler
3053 * @nic : device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003054 * Description:
3055 * If an interrupt was raised to indicate DMA complete of the
3056 * Tx packet, this function is called. It identifies the last TxD
3057 * whose buffer was freed and frees all skbs whose data have already
Linus Torvalds1da177e2005-04-16 15:20:36 -07003058 * DMA'ed into the NICs internal memory.
3059 * Return Value:
3060 * NONE
3061 */
3062
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003063static void tx_intr_handler(struct fifo_info *fifo_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003064{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003065 struct s2io_nic *nic = fifo_data->nic;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003066 struct tx_curr_get_info get_info, put_info;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003067 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003068 struct TxD *txdlp;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003069 int pkt_cnt = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08003070 unsigned long flags = 0;
Olaf Heringf9046eb2007-06-19 22:41:10 +02003071 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00003072 struct stat_block *stats = nic->mac_control.stats_info;
3073 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003074
Surjit Reang2fda0962008-01-24 02:08:59 -08003075 if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags))
Joe Perchesd44570e2009-08-24 17:29:44 +00003076 return;
Surjit Reang2fda0962008-01-24 02:08:59 -08003077
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003078 get_info = fifo_data->tx_curr_get_info;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003079 memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info));
Joe Perchesd44570e2009-08-24 17:29:44 +00003080 txdlp = (struct TxD *)
3081 fifo_data->list_info[get_info.offset].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003082 while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) &&
3083 (get_info.offset != put_info.offset) &&
3084 (txdlp->Host_Control)) {
3085 /* Check for TxD errors */
3086 if (txdlp->Control_1 & TXD_T_CODE) {
3087 unsigned long long err;
3088 err = txdlp->Control_1 & TXD_T_CODE;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003089 if (err & 0x1) {
Joe Perchesffb5df62009-08-24 17:29:47 +00003090 swstats->parity_err_cnt++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003091 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003092
3093 /* update t_code statistics */
Olaf Heringf9046eb2007-06-19 22:41:10 +02003094 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00003095 switch (err_mask) {
3096 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00003097 swstats->tx_buf_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003098 break;
3099
Joe Perchesd44570e2009-08-24 17:29:44 +00003100 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00003101 swstats->tx_desc_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003102 break;
3103
Joe Perchesd44570e2009-08-24 17:29:44 +00003104 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00003105 swstats->tx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003106 break;
3107
Joe Perchesd44570e2009-08-24 17:29:44 +00003108 case 10:
Joe Perchesffb5df62009-08-24 17:29:47 +00003109 swstats->tx_link_loss_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003110 break;
3111
Joe Perchesd44570e2009-08-24 17:29:44 +00003112 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00003113 swstats->tx_list_proc_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003114 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00003115 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003116 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003117
Ananda Rajufed5ecc2005-11-14 15:25:08 -05003118 skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003119 if (skb == NULL) {
Surjit Reang2fda0962008-01-24 02:08:59 -08003120 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Joe Perches9e39f7c2009-08-25 08:52:00 +00003121 DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n",
3122 __func__);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003123 return;
3124 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003125 pkt_cnt++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003126
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003127 /* Updating the statistics block */
Joe Perchesffb5df62009-08-24 17:29:47 +00003128 swstats->mem_freed += skb->truesize;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003129 dev_kfree_skb_irq(skb);
3130
3131 get_info.offset++;
Ananda Raju863c11a2006-04-21 19:03:13 -04003132 if (get_info.offset == get_info.fifo_len + 1)
3133 get_info.offset = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00003134 txdlp = (struct TxD *)
3135 fifo_data->list_info[get_info.offset].list_virt_addr;
3136 fifo_data->tx_curr_get_info.offset = get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003137 }
3138
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003139 s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq);
Surjit Reang2fda0962008-01-24 02:08:59 -08003140
3141 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003142}
3143
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003144/**
Ananda Rajubd1034f2006-04-21 19:20:22 -04003145 * s2io_mdio_write - Function to write in to MDIO registers
3146 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3147 * @addr : address value
3148 * @value : data value
3149 * @dev : pointer to net_device structure
3150 * Description:
3151 * This function is used to write values to the MDIO registers
3152 * NONE
3153 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003154static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value,
3155 struct net_device *dev)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003156{
Joe Perchesd44570e2009-08-24 17:29:44 +00003157 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08003158 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003159 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003160
Joe Perchesd44570e2009-08-24 17:29:44 +00003161 /* address transaction */
3162 val64 = MDIO_MMD_INDX_ADDR(addr) |
3163 MDIO_MMD_DEV_ADDR(mmd_type) |
3164 MDIO_MMS_PRT_ADDR(0x0);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003165 writeq(val64, &bar0->mdio_control);
3166 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3167 writeq(val64, &bar0->mdio_control);
3168 udelay(100);
3169
Joe Perchesd44570e2009-08-24 17:29:44 +00003170 /* Data transaction */
3171 val64 = MDIO_MMD_INDX_ADDR(addr) |
3172 MDIO_MMD_DEV_ADDR(mmd_type) |
3173 MDIO_MMS_PRT_ADDR(0x0) |
3174 MDIO_MDIO_DATA(value) |
3175 MDIO_OP(MDIO_OP_WRITE_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003176 writeq(val64, &bar0->mdio_control);
3177 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3178 writeq(val64, &bar0->mdio_control);
3179 udelay(100);
3180
Joe Perchesd44570e2009-08-24 17:29:44 +00003181 val64 = MDIO_MMD_INDX_ADDR(addr) |
3182 MDIO_MMD_DEV_ADDR(mmd_type) |
3183 MDIO_MMS_PRT_ADDR(0x0) |
3184 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003185 writeq(val64, &bar0->mdio_control);
3186 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3187 writeq(val64, &bar0->mdio_control);
3188 udelay(100);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003189}
3190
3191/**
3192 * s2io_mdio_read - Function to write in to MDIO registers
3193 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3194 * @addr : address value
3195 * @dev : pointer to net_device structure
3196 * Description:
3197 * This function is used to read values to the MDIO registers
3198 * NONE
3199 */
3200static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
3201{
3202 u64 val64 = 0x0;
3203 u64 rval64 = 0x0;
Wang Chen4cf16532008-11-12 23:38:14 -08003204 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003205 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003206
3207 /* address transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003208 val64 = val64 | (MDIO_MMD_INDX_ADDR(addr)
3209 | MDIO_MMD_DEV_ADDR(mmd_type)
3210 | MDIO_MMS_PRT_ADDR(0x0));
Ananda Rajubd1034f2006-04-21 19:20:22 -04003211 writeq(val64, &bar0->mdio_control);
3212 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3213 writeq(val64, &bar0->mdio_control);
3214 udelay(100);
3215
3216 /* Data transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003217 val64 = MDIO_MMD_INDX_ADDR(addr) |
3218 MDIO_MMD_DEV_ADDR(mmd_type) |
3219 MDIO_MMS_PRT_ADDR(0x0) |
3220 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003221 writeq(val64, &bar0->mdio_control);
3222 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3223 writeq(val64, &bar0->mdio_control);
3224 udelay(100);
3225
3226 /* Read the value from regs */
3227 rval64 = readq(&bar0->mdio_control);
3228 rval64 = rval64 & 0xFFFF0000;
3229 rval64 = rval64 >> 16;
3230 return rval64;
3231}
Joe Perchesd44570e2009-08-24 17:29:44 +00003232
Ananda Rajubd1034f2006-04-21 19:20:22 -04003233/**
3234 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
Uwe Kleine-Königfbfecd32009-10-28 20:11:04 +01003235 * @counter : counter value to be updated
Ananda Rajubd1034f2006-04-21 19:20:22 -04003236 * @flag : flag to indicate the status
3237 * @type : counter type
3238 * Description:
3239 * This function is to check the status of the xpak counters value
3240 * NONE
3241 */
3242
Joe Perchesd44570e2009-08-24 17:29:44 +00003243static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index,
3244 u16 flag, u16 type)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003245{
3246 u64 mask = 0x3;
3247 u64 val64;
3248 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00003249 for (i = 0; i < index; i++)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003250 mask = mask << 0x2;
3251
Joe Perchesd44570e2009-08-24 17:29:44 +00003252 if (flag > 0) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003253 *counter = *counter + 1;
3254 val64 = *regs_stat & mask;
3255 val64 = val64 >> (index * 0x2);
3256 val64 = val64 + 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00003257 if (val64 == 3) {
3258 switch (type) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003259 case 1:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003260 DBG_PRINT(ERR_DBG,
3261 "Take Xframe NIC out of service.\n");
3262 DBG_PRINT(ERR_DBG,
3263"Excessive temperatures may result in premature transceiver failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003264 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003265 case 2:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003266 DBG_PRINT(ERR_DBG,
3267 "Take Xframe NIC out of service.\n");
3268 DBG_PRINT(ERR_DBG,
3269"Excessive bias currents may indicate imminent laser diode failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003270 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003271 case 3:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003272 DBG_PRINT(ERR_DBG,
3273 "Take Xframe NIC out of service.\n");
3274 DBG_PRINT(ERR_DBG,
3275"Excessive laser output power may saturate far-end receiver.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003276 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003277 default:
Joe Perchesd44570e2009-08-24 17:29:44 +00003278 DBG_PRINT(ERR_DBG,
3279 "Incorrect XPAK Alarm type\n");
Ananda Rajubd1034f2006-04-21 19:20:22 -04003280 }
3281 val64 = 0x0;
3282 }
3283 val64 = val64 << (index * 0x2);
3284 *regs_stat = (*regs_stat & (~mask)) | (val64);
3285
3286 } else {
3287 *regs_stat = *regs_stat & (~mask);
3288 }
3289}
3290
3291/**
3292 * s2io_updt_xpak_counter - Function to update the xpak counters
3293 * @dev : pointer to net_device struct
3294 * Description:
3295 * This function is to upate the status of the xpak counters value
3296 * NONE
3297 */
3298static void s2io_updt_xpak_counter(struct net_device *dev)
3299{
3300 u16 flag = 0x0;
3301 u16 type = 0x0;
3302 u16 val16 = 0x0;
3303 u64 val64 = 0x0;
3304 u64 addr = 0x0;
3305
Wang Chen4cf16532008-11-12 23:38:14 -08003306 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003307 struct stat_block *stats = sp->mac_control.stats_info;
3308 struct xpakStat *xstats = &stats->xpak_stat;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003309
3310 /* Check the communication with the MDIO slave */
Ben Hutchings40239392009-04-29 08:13:29 +00003311 addr = MDIO_CTRL1;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003312 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003313 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00003314 if ((val64 == 0xFFFF) || (val64 == 0x0000)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003315 DBG_PRINT(ERR_DBG,
3316 "ERR: MDIO slave access failed - Returned %llx\n",
3317 (unsigned long long)val64);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003318 return;
3319 }
3320
Ben Hutchings40239392009-04-29 08:13:29 +00003321 /* Check for the expected value of control reg 1 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003322 if (val64 != MDIO_CTRL1_SPEED10G) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003323 DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "
3324 "Returned: %llx- Expected: 0x%x\n",
Ben Hutchings40239392009-04-29 08:13:29 +00003325 (unsigned long long)val64, MDIO_CTRL1_SPEED10G);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003326 return;
3327 }
3328
3329 /* Loading the DOM register to MDIO register */
3330 addr = 0xA100;
Ben Hutchings40239392009-04-29 08:13:29 +00003331 s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev);
3332 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003333
3334 /* Reading the Alarm flags */
3335 addr = 0xA070;
3336 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003337 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003338
3339 flag = CHECKBIT(val64, 0x7);
3340 type = 1;
Joe Perchesffb5df62009-08-24 17:29:47 +00003341 s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high,
3342 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003343 0x0, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003344
Joe Perchesd44570e2009-08-24 17:29:44 +00003345 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003346 xstats->alarm_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003347
3348 flag = CHECKBIT(val64, 0x3);
3349 type = 2;
Joe Perchesffb5df62009-08-24 17:29:47 +00003350 s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high,
3351 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003352 0x2, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003353
Joe Perchesd44570e2009-08-24 17:29:44 +00003354 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003355 xstats->alarm_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003356
3357 flag = CHECKBIT(val64, 0x1);
3358 type = 3;
Joe Perchesffb5df62009-08-24 17:29:47 +00003359 s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high,
3360 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003361 0x4, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003362
Joe Perchesd44570e2009-08-24 17:29:44 +00003363 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003364 xstats->alarm_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003365
3366 /* Reading the Warning flags */
3367 addr = 0xA074;
3368 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003369 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003370
Joe Perchesd44570e2009-08-24 17:29:44 +00003371 if (CHECKBIT(val64, 0x7))
Joe Perchesffb5df62009-08-24 17:29:47 +00003372 xstats->warn_transceiver_temp_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003373
Joe Perchesd44570e2009-08-24 17:29:44 +00003374 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003375 xstats->warn_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003376
Joe Perchesd44570e2009-08-24 17:29:44 +00003377 if (CHECKBIT(val64, 0x3))
Joe Perchesffb5df62009-08-24 17:29:47 +00003378 xstats->warn_laser_bias_current_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003379
Joe Perchesd44570e2009-08-24 17:29:44 +00003380 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003381 xstats->warn_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003382
Joe Perchesd44570e2009-08-24 17:29:44 +00003383 if (CHECKBIT(val64, 0x1))
Joe Perchesffb5df62009-08-24 17:29:47 +00003384 xstats->warn_laser_output_power_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003385
Joe Perchesd44570e2009-08-24 17:29:44 +00003386 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003387 xstats->warn_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003388}
3389
3390/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003391 * wait_for_cmd_complete - waits for a command to complete.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003392 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07003393 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003394 * Description: Function that waits for a command to Write into RMAC
3395 * ADDR DATA registers to be completed and returns either success or
3396 * error depending on whether the command was complete or not.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003397 * Return value:
3398 * SUCCESS on success and FAILURE on failure.
3399 */
3400
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003401static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
Joe Perchesd44570e2009-08-24 17:29:44 +00003402 int bit_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003403{
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003404 int ret = FAILURE, cnt = 0, delay = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003405 u64 val64;
3406
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003407 if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET))
3408 return FAILURE;
3409
3410 do {
Ananda Rajuc92ca042006-04-21 19:18:03 -04003411 val64 = readq(addr);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003412 if (bit_state == S2IO_BIT_RESET) {
3413 if (!(val64 & busy_bit)) {
3414 ret = SUCCESS;
3415 break;
3416 }
3417 } else {
Ram Vepa2d146eb2010-01-19 12:36:20 -08003418 if (val64 & busy_bit) {
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003419 ret = SUCCESS;
3420 break;
3421 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003422 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003423
Joe Perchesd44570e2009-08-24 17:29:44 +00003424 if (in_interrupt())
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003425 mdelay(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003426 else
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003427 msleep(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003428
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003429 if (++cnt >= 10)
3430 delay = 50;
3431 } while (cnt < 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003432 return ret;
3433}
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003434/*
3435 * check_pci_device_id - Checks if the device id is supported
3436 * @id : device id
3437 * Description: Function to check if the pci device id is supported by driver.
3438 * Return value: Actual device id if supported else PCI_ANY_ID
3439 */
3440static u16 check_pci_device_id(u16 id)
3441{
3442 switch (id) {
3443 case PCI_DEVICE_ID_HERC_WIN:
3444 case PCI_DEVICE_ID_HERC_UNI:
3445 return XFRAME_II_DEVICE;
3446 case PCI_DEVICE_ID_S2IO_UNI:
3447 case PCI_DEVICE_ID_S2IO_WIN:
3448 return XFRAME_I_DEVICE;
3449 default:
3450 return PCI_ANY_ID;
3451 }
3452}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003453
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003454/**
3455 * s2io_reset - Resets the card.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003456 * @sp : private member of the device structure.
3457 * Description: Function to Reset the card. This function then also
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003458 * restores the previously saved PCI configuration space registers as
Linus Torvalds1da177e2005-04-16 15:20:36 -07003459 * the card reset also resets the configuration space.
3460 * Return value:
3461 * void.
3462 */
3463
Joe Perchesd44570e2009-08-24 17:29:44 +00003464static void s2io_reset(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003465{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003466 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003467 u64 val64;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003468 u16 subid, pci_cmd;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003469 int i;
3470 u16 val16;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003471 unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt;
3472 unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt;
Joe Perchesffb5df62009-08-24 17:29:47 +00003473 struct stat_block *stats;
3474 struct swStat *swstats;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003475
Joe Perches9e39f7c2009-08-25 08:52:00 +00003476 DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n",
Breno Leitao3a228132010-03-04 10:40:44 +00003477 __func__, pci_name(sp->pdev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07003478
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003479 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07003480 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003481
Linus Torvalds1da177e2005-04-16 15:20:36 -07003482 val64 = SW_RESET_ALL;
3483 writeq(val64, &bar0->sw_reset);
Joe Perchesd44570e2009-08-24 17:29:44 +00003484 if (strstr(sp->product_name, "CX4"))
Ananda Rajuc92ca042006-04-21 19:18:03 -04003485 msleep(750);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003486 msleep(250);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003487 for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
3488
3489 /* Restore the PCI state saved during initialization. */
3490 pci_restore_state(sp->pdev);
Breno Leitaob8a623b2009-11-10 09:44:23 +00003491 pci_save_state(sp->pdev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003492 pci_read_config_word(sp->pdev, 0x2, &val16);
3493 if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
3494 break;
3495 msleep(200);
3496 }
3497
Joe Perchesd44570e2009-08-24 17:29:44 +00003498 if (check_pci_device_id(val16) == (u16)PCI_ANY_ID)
3499 DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003500
3501 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
3502
3503 s2io_init_pci(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003504
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003505 /* Set swapper to enable I/O register access */
3506 s2io_set_swapper(sp);
3507
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003508 /* restore mac_addr entries */
3509 do_s2io_restore_unicast_mc(sp);
3510
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003511 /* Restore the MSIX table entries from local variables */
3512 restore_xmsi_data(sp);
3513
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003514 /* Clear certain PCI/PCI-X fields after reset */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003515 if (sp->device_type == XFRAME_II_DEVICE) {
Ananda Rajub41477f2006-07-24 19:52:49 -04003516 /* Clear "detected parity error" bit */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003517 pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003518
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003519 /* Clearing PCIX Ecc status register */
3520 pci_write_config_dword(sp->pdev, 0x68, 0x7C);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003521
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003522 /* Clearing PCI_STATUS error reflected here */
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003523 writeq(s2BIT(62), &bar0->txpic_int_reg);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003524 }
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003525
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003526 /* Reset device statistics maintained by OS */
Joe Perchesd44570e2009-08-24 17:29:44 +00003527 memset(&sp->stats, 0, sizeof(struct net_device_stats));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003528
Joe Perchesffb5df62009-08-24 17:29:47 +00003529 stats = sp->mac_control.stats_info;
3530 swstats = &stats->sw_stat;
3531
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003532 /* save link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003533 up_cnt = swstats->link_up_cnt;
3534 down_cnt = swstats->link_down_cnt;
3535 up_time = swstats->link_up_time;
3536 down_time = swstats->link_down_time;
3537 reset_cnt = swstats->soft_reset_cnt;
3538 mem_alloc_cnt = swstats->mem_allocated;
3539 mem_free_cnt = swstats->mem_freed;
3540 watchdog_cnt = swstats->watchdog_timer_cnt;
3541
3542 memset(stats, 0, sizeof(struct stat_block));
3543
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003544 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003545 swstats->link_up_cnt = up_cnt;
3546 swstats->link_down_cnt = down_cnt;
3547 swstats->link_up_time = up_time;
3548 swstats->link_down_time = down_time;
3549 swstats->soft_reset_cnt = reset_cnt;
3550 swstats->mem_allocated = mem_alloc_cnt;
3551 swstats->mem_freed = mem_free_cnt;
3552 swstats->watchdog_timer_cnt = watchdog_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003553
Linus Torvalds1da177e2005-04-16 15:20:36 -07003554 /* SXE-002: Configure link and activity LED to turn it off */
3555 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003556 if (((subid & 0xFF) >= 0x07) &&
3557 (sp->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003558 val64 = readq(&bar0->gpio_control);
3559 val64 |= 0x0000800000000000ULL;
3560 writeq(val64, &bar0->gpio_control);
3561 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01003562 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003563 }
3564
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003565 /*
3566 * Clear spurious ECC interrupts that would have occured on
3567 * XFRAME II cards after reset.
3568 */
3569 if (sp->device_type == XFRAME_II_DEVICE) {
3570 val64 = readq(&bar0->pcc_err_reg);
3571 writeq(val64, &bar0->pcc_err_reg);
3572 }
3573
Tobias Klauserf957bcf2009-06-04 23:07:59 +00003574 sp->device_enabled_once = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003575}
3576
3577/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003578 * s2io_set_swapper - to set the swapper controle on the card
3579 * @sp : private member of the device structure,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003580 * pointer to the s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003581 * Description: Function to set the swapper control on the card
Linus Torvalds1da177e2005-04-16 15:20:36 -07003582 * correctly depending on the 'endianness' of the system.
3583 * Return value:
3584 * SUCCESS on success and FAILURE on failure.
3585 */
3586
Joe Perchesd44570e2009-08-24 17:29:44 +00003587static int s2io_set_swapper(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003588{
3589 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003590 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003591 u64 val64, valt, valr;
3592
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003593 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003594 * Set proper endian settings and verify the same by reading
3595 * the PIF Feed-back register.
3596 */
3597
3598 val64 = readq(&bar0->pif_rd_swapper_fb);
3599 if (val64 != 0x0123456789ABCDEFULL) {
3600 int i = 0;
Jon Mason85a56492010-12-10 15:40:04 +00003601 static const u64 value[] = {
3602 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3603 0x8100008181000081ULL, /* FE=1, SE=0 */
3604 0x4200004242000042ULL, /* FE=0, SE=1 */
3605 0 /* FE=0, SE=0 */
3606 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003607
Joe Perchesd44570e2009-08-24 17:29:44 +00003608 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003609 writeq(value[i], &bar0->swapper_ctrl);
3610 val64 = readq(&bar0->pif_rd_swapper_fb);
3611 if (val64 == 0x0123456789ABCDEFULL)
3612 break;
3613 i++;
3614 }
3615 if (i == 4) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003616 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, "
3617 "feedback read %llx\n",
3618 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003619 return FAILURE;
3620 }
3621 valr = value[i];
3622 } else {
3623 valr = readq(&bar0->swapper_ctrl);
3624 }
3625
3626 valt = 0x0123456789ABCDEFULL;
3627 writeq(valt, &bar0->xmsi_address);
3628 val64 = readq(&bar0->xmsi_address);
3629
Joe Perchesd44570e2009-08-24 17:29:44 +00003630 if (val64 != valt) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003631 int i = 0;
Jon Mason85a56492010-12-10 15:40:04 +00003632 static const u64 value[] = {
3633 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3634 0x0081810000818100ULL, /* FE=1, SE=0 */
3635 0x0042420000424200ULL, /* FE=0, SE=1 */
3636 0 /* FE=0, SE=0 */
3637 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003638
Joe Perchesd44570e2009-08-24 17:29:44 +00003639 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003640 writeq((value[i] | valr), &bar0->swapper_ctrl);
3641 writeq(valt, &bar0->xmsi_address);
3642 val64 = readq(&bar0->xmsi_address);
Joe Perchesd44570e2009-08-24 17:29:44 +00003643 if (val64 == valt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003644 break;
3645 i++;
3646 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003647 if (i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003648 unsigned long long x = val64;
Joe Perches9e39f7c2009-08-25 08:52:00 +00003649 DBG_PRINT(ERR_DBG,
3650 "Write failed, Xmsi_addr reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003651 return FAILURE;
3652 }
3653 }
3654 val64 = readq(&bar0->swapper_ctrl);
3655 val64 &= 0xFFFF000000000000ULL;
3656
Joe Perchesd44570e2009-08-24 17:29:44 +00003657#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003658 /*
3659 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003660 * big endian driver need not set anything.
3661 */
3662 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003663 SWAPPER_CTRL_TXP_SE |
3664 SWAPPER_CTRL_TXD_R_FE |
3665 SWAPPER_CTRL_TXD_W_FE |
3666 SWAPPER_CTRL_TXF_R_FE |
3667 SWAPPER_CTRL_RXD_R_FE |
3668 SWAPPER_CTRL_RXD_W_FE |
3669 SWAPPER_CTRL_RXF_W_FE |
3670 SWAPPER_CTRL_XMSI_FE |
3671 SWAPPER_CTRL_STATS_FE |
3672 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003673 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003674 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003675 writeq(val64, &bar0->swapper_ctrl);
3676#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003677 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003678 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003679 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003680 * we want to set.
3681 */
3682 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003683 SWAPPER_CTRL_TXP_SE |
3684 SWAPPER_CTRL_TXD_R_FE |
3685 SWAPPER_CTRL_TXD_R_SE |
3686 SWAPPER_CTRL_TXD_W_FE |
3687 SWAPPER_CTRL_TXD_W_SE |
3688 SWAPPER_CTRL_TXF_R_FE |
3689 SWAPPER_CTRL_RXD_R_FE |
3690 SWAPPER_CTRL_RXD_R_SE |
3691 SWAPPER_CTRL_RXD_W_FE |
3692 SWAPPER_CTRL_RXD_W_SE |
3693 SWAPPER_CTRL_RXF_W_FE |
3694 SWAPPER_CTRL_XMSI_FE |
3695 SWAPPER_CTRL_STATS_FE |
3696 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003697 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003698 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003699 writeq(val64, &bar0->swapper_ctrl);
3700#endif
3701 val64 = readq(&bar0->swapper_ctrl);
3702
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003703 /*
3704 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003705 * feedback register.
3706 */
3707 val64 = readq(&bar0->pif_rd_swapper_fb);
3708 if (val64 != 0x0123456789ABCDEFULL) {
3709 /* Endian settings are incorrect, calls for another dekko. */
Joe Perches9e39f7c2009-08-25 08:52:00 +00003710 DBG_PRINT(ERR_DBG,
3711 "%s: Endian settings are wrong, feedback read %llx\n",
3712 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003713 return FAILURE;
3714 }
3715
3716 return SUCCESS;
3717}
3718
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003719static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003720{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003721 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003722 u64 val64;
3723 int ret = 0, cnt = 0;
3724
3725 do {
3726 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003727 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003728 break;
3729 mdelay(1);
3730 cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00003731 } while (cnt < 5);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003732 if (cnt == 5) {
3733 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3734 ret = 1;
3735 }
3736
3737 return ret;
3738}
3739
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003740static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003741{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003742 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003743 u64 val64;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003744 int i, msix_index;
3745
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003746 if (nic->device_type == XFRAME_I_DEVICE)
3747 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003748
Joe Perchesd44570e2009-08-24 17:29:44 +00003749 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3750 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003751 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3752 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003753 val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003754 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003755 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003756 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3757 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003758 continue;
3759 }
3760 }
3761}
3762
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003763static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003764{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003765 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003766 u64 val64, addr, data;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003767 int i, msix_index;
3768
3769 if (nic->device_type == XFRAME_I_DEVICE)
3770 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003771
3772 /* Store and display */
Joe Perchesd44570e2009-08-24 17:29:44 +00003773 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3774 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003775 val64 = (s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003776 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003777 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003778 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3779 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003780 continue;
3781 }
3782 addr = readq(&bar0->xmsi_address);
3783 data = readq(&bar0->xmsi_data);
3784 if (addr && data) {
3785 nic->msix_info[i].addr = addr;
3786 nic->msix_info[i].data = data;
3787 }
3788 }
3789}
3790
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003791static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003792{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003793 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003794 u64 rx_mat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003795 u16 msi_control; /* Temp variable */
3796 int ret, i, j, msix_indx = 1;
Joe Perches4f870322009-08-24 17:29:42 +00003797 int size;
Joe Perchesffb5df62009-08-24 17:29:47 +00003798 struct stat_block *stats = nic->mac_control.stats_info;
3799 struct swStat *swstats = &stats->sw_stat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003800
Joe Perches4f870322009-08-24 17:29:42 +00003801 size = nic->num_entries * sizeof(struct msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003802 nic->entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003803 if (!nic->entries) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003804 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
3805 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003806 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003807 return -ENOMEM;
3808 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003809 swstats->mem_allocated += size;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003810
Joe Perches4f870322009-08-24 17:29:42 +00003811 size = nic->num_entries * sizeof(struct s2io_msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003812 nic->s2io_entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003813 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003814 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003815 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003816 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003817 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003818 swstats->mem_freed
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003819 += (nic->num_entries * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003820 return -ENOMEM;
3821 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003822 swstats->mem_allocated += size;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003823
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003824 nic->entries[0].entry = 0;
3825 nic->s2io_entries[0].entry = 0;
3826 nic->s2io_entries[0].in_use = MSIX_FLG;
3827 nic->s2io_entries[0].type = MSIX_ALARM_TYPE;
3828 nic->s2io_entries[0].arg = &nic->mac_control.fifos;
3829
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003830 for (i = 1; i < nic->num_entries; i++) {
3831 nic->entries[i].entry = ((i - 1) * 8) + 1;
3832 nic->s2io_entries[i].entry = ((i - 1) * 8) + 1;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003833 nic->s2io_entries[i].arg = NULL;
3834 nic->s2io_entries[i].in_use = 0;
3835 }
3836
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003837 rx_mat = readq(&bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003838 for (j = 0; j < nic->config.rx_ring_num; j++) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003839 rx_mat |= RX_MAT_SET(j, msix_indx);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003840 nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j];
3841 nic->s2io_entries[j+1].type = MSIX_RING_TYPE;
3842 nic->s2io_entries[j+1].in_use = MSIX_FLG;
3843 msix_indx += 8;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003844 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003845 writeq(rx_mat, &bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003846 readq(&bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003847
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003848 ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003849 /* We fail init if error or we get less vectors than min required */
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003850 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003851 DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n");
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003852 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003853 swstats->mem_freed += nic->num_entries *
3854 sizeof(struct msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003855 kfree(nic->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003856 swstats->mem_freed += nic->num_entries *
3857 sizeof(struct s2io_msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003858 nic->entries = NULL;
3859 nic->s2io_entries = NULL;
3860 return -ENOMEM;
3861 }
3862
3863 /*
3864 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3865 * in the herc NIC. (Temp change, needs to be removed later)
3866 */
3867 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3868 msi_control |= 0x1; /* Enable MSI */
3869 pci_write_config_word(nic->pdev, 0x42, msi_control);
3870
3871 return 0;
3872}
3873
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003874/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003875static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003876{
3877 struct s2io_nic *sp = dev_id;
3878
3879 sp->msi_detected = 1;
3880 wake_up(&sp->msi_wait);
3881
3882 return IRQ_HANDLED;
3883}
3884
3885/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003886static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003887{
3888 struct pci_dev *pdev = sp->pdev;
3889 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3890 int err;
3891 u64 val64, saved64;
3892
3893 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00003894 sp->name, sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003895 if (err) {
3896 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003897 sp->dev->name, pci_name(pdev), pdev->irq);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003898 return err;
3899 }
3900
Joe Perchesd44570e2009-08-24 17:29:44 +00003901 init_waitqueue_head(&sp->msi_wait);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003902 sp->msi_detected = 0;
3903
3904 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3905 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3906 val64 |= SCHED_INT_CTRL_TIMER_EN;
3907 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3908 writeq(val64, &bar0->scheduled_int_ctrl);
3909
3910 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3911
3912 if (!sp->msi_detected) {
3913 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003914 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Joe Perches9e39f7c2009-08-25 08:52:00 +00003915 "using MSI(X) during test\n",
3916 sp->dev->name, pci_name(pdev));
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003917
3918 err = -EOPNOTSUPP;
3919 }
3920
3921 free_irq(sp->entries[1].vector, sp);
3922
3923 writeq(saved64, &bar0->scheduled_int_ctrl);
3924
3925 return err;
3926}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003927
3928static void remove_msix_isr(struct s2io_nic *sp)
3929{
3930 int i;
3931 u16 msi_control;
3932
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003933 for (i = 0; i < sp->num_entries; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003934 if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003935 int vector = sp->entries[i].vector;
3936 void *arg = sp->s2io_entries[i].arg;
3937 free_irq(vector, arg);
3938 }
3939 }
3940
3941 kfree(sp->entries);
3942 kfree(sp->s2io_entries);
3943 sp->entries = NULL;
3944 sp->s2io_entries = NULL;
3945
3946 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3947 msi_control &= 0xFFFE; /* Disable MSI */
3948 pci_write_config_word(sp->pdev, 0x42, msi_control);
3949
3950 pci_disable_msix(sp->pdev);
3951}
3952
3953static void remove_inta_isr(struct s2io_nic *sp)
3954{
3955 struct net_device *dev = sp->dev;
3956
3957 free_irq(sp->pdev->irq, dev);
3958}
3959
Linus Torvalds1da177e2005-04-16 15:20:36 -07003960/* ********************************************************* *
3961 * Functions defined below concern the OS part of the driver *
3962 * ********************************************************* */
3963
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003964/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003965 * s2io_open - open entry point of the driver
3966 * @dev : pointer to the device structure.
3967 * Description:
3968 * This function is the open entry point of the driver. It mainly calls a
3969 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003970 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003971 * Return value:
3972 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3973 * file on failure.
3974 */
3975
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003976static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003977{
Wang Chen4cf16532008-11-12 23:38:14 -08003978 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003979 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980 int err = 0;
3981
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003982 /*
3983 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003984 * Nic is initialized
3985 */
3986 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003987 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003988
3989 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003990 err = s2io_card_up(sp);
3991 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003992 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3993 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003994 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003995 }
3996
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003997 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003998 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003999 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004000 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004001 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004002 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004003 s2io_start_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004004 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004005
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004006hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07004007 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004008 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004009 kfree(sp->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004010 swstats->mem_freed += sp->num_entries *
4011 sizeof(struct msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004012 }
4013 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004014 kfree(sp->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004015 swstats->mem_freed += sp->num_entries *
4016 sizeof(struct s2io_msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004017 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004018 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004019 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004020}
4021
4022/**
4023 * s2io_close -close entry point of the driver
4024 * @dev : device pointer.
4025 * Description:
4026 * This is the stop entry point of the driver. It needs to undo exactly
4027 * whatever was done by the open entry point,thus it's usually referred to
4028 * as the close function.Among other things this function mainly stops the
4029 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
4030 * Return value:
4031 * 0 on success and an appropriate (-)ve integer as defined in errno.h
4032 * file on failure.
4033 */
4034
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004035static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004036{
Wang Chen4cf16532008-11-12 23:38:14 -08004037 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004038 struct config_param *config = &sp->config;
4039 u64 tmp64;
4040 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004041
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004042 /* Return if the device is already closed *
Joe Perchesd44570e2009-08-24 17:29:44 +00004043 * Can happen when s2io_card_up failed in change_mtu *
4044 */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004045 if (!is_s2io_card_up(sp))
4046 return 0;
4047
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004048 s2io_stop_all_tx_queue(sp);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004049 /* delete all populated mac entries */
4050 for (offset = 1; offset < config->max_mc_addr; offset++) {
4051 tmp64 = do_s2io_read_unicast_mc(sp, offset);
4052 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
4053 do_s2io_delete_unicast_mc(sp, tmp64);
4054 }
4055
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004056 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004057
Linus Torvalds1da177e2005-04-16 15:20:36 -07004058 return 0;
4059}
4060
4061/**
4062 * s2io_xmit - Tx entry point of te driver
4063 * @skb : the socket buffer containing the Tx data.
4064 * @dev : device pointer.
4065 * Description :
4066 * This function is the Tx entry point of the driver. S2IO NIC supports
4067 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
4068 * NOTE: when device cant queue the pkt,just the trans_start variable will
4069 * not be upadted.
4070 * Return value:
4071 * 0 on success & 1 on failure.
4072 */
4073
Stephen Hemminger613573252009-08-31 19:50:58 +00004074static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004075{
Wang Chen4cf16532008-11-12 23:38:14 -08004076 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004077 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4078 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004079 struct TxD *txdp;
4080 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004081 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004082 u16 vlan_tag = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004083 struct fifo_info *fifo = NULL;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004084 int do_spin_lock = 1;
Ananda Raju75c30b12006-07-24 19:55:09 -04004085 int offload_type;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004086 int enable_per_list_interrupt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00004087 struct config_param *config = &sp->config;
4088 struct mac_info *mac_control = &sp->mac_control;
4089 struct stat_block *stats = mac_control->stats_info;
4090 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004091
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004092 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004093
4094 if (unlikely(skb->len <= 0)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00004095 DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004096 dev_kfree_skb_any(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004097 return NETDEV_TX_OK;
Surjit Reang2fda0962008-01-24 02:08:59 -08004098 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004099
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004100 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004101 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004102 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004103 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004104 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004105 }
4106
4107 queue = 0;
Jesse Grosseab6d182010-10-20 13:56:03 +00004108 if (vlan_tx_tag_present(skb))
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004109 vlan_tag = vlan_tx_tag_get(skb);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004110 if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) {
4111 if (skb->protocol == htons(ETH_P_IP)) {
4112 struct iphdr *ip;
4113 struct tcphdr *th;
4114 ip = ip_hdr(skb);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004115
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004116 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
4117 th = (struct tcphdr *)(((unsigned char *)ip) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004118 ip->ihl*4);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004119
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004120 if (ip->protocol == IPPROTO_TCP) {
4121 queue_len = sp->total_tcp_fifos;
4122 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004123 ntohs(th->dest)) &
4124 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004125 if (queue >= queue_len)
4126 queue = queue_len - 1;
4127 } else if (ip->protocol == IPPROTO_UDP) {
4128 queue_len = sp->total_udp_fifos;
4129 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004130 ntohs(th->dest)) &
4131 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004132 if (queue >= queue_len)
4133 queue = queue_len - 1;
4134 queue += sp->udp_fifo_idx;
4135 if (skb->len > 1024)
4136 enable_per_list_interrupt = 1;
4137 do_spin_lock = 0;
4138 }
4139 }
4140 }
4141 } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING)
4142 /* get fifo number based on skb->priority value */
4143 queue = config->fifo_mapping
Joe Perchesd44570e2009-08-24 17:29:44 +00004144 [skb->priority & (MAX_TX_FIFOS - 1)];
Surjit Reang2fda0962008-01-24 02:08:59 -08004145 fifo = &mac_control->fifos[queue];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004146
4147 if (do_spin_lock)
4148 spin_lock_irqsave(&fifo->tx_lock, flags);
4149 else {
4150 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
4151 return NETDEV_TX_LOCKED;
4152 }
4153
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004154 if (sp->config.multiq) {
4155 if (__netif_subqueue_stopped(dev, fifo->fifo_no)) {
4156 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4157 return NETDEV_TX_BUSY;
4158 }
David S. Millerb19fa1f2008-07-08 23:14:24 -07004159 } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004160 if (netif_queue_stopped(dev)) {
4161 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4162 return NETDEV_TX_BUSY;
4163 }
4164 }
4165
Joe Perchesd44570e2009-08-24 17:29:44 +00004166 put_off = (u16)fifo->tx_curr_put_info.offset;
4167 get_off = (u16)fifo->tx_curr_get_info.offset;
4168 txdp = (struct TxD *)fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004169
Surjit Reang2fda0962008-01-24 02:08:59 -08004170 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004171 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004172 if (txdp->Host_Control ||
Joe Perchesd44570e2009-08-24 17:29:44 +00004173 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004174 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004175 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004176 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004177 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004178 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004179 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004180
Ananda Raju75c30b12006-07-24 19:55:09 -04004181 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004182 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004183 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004184 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004185 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004186 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004187 txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN |
4188 TXD_TX_CKO_TCP_EN |
4189 TXD_TX_CKO_UDP_EN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004190 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004191 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4192 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004193 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004194 if (enable_per_list_interrupt)
4195 if (put_off & (queue_len >> 5))
4196 txdp->Control_2 |= TXD_INT_TYPE_PER_LIST;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004197 if (vlan_tag) {
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004198 txdp->Control_2 |= TXD_VLAN_ENABLE;
4199 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4200 }
4201
Eric Dumazete743d312010-04-14 15:59:40 -07004202 frg_len = skb_headlen(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004203 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004204 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004205
Ananda Raju75c30b12006-07-24 19:55:09 -04004206 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004207 ufo_size &= ~7;
4208 txdp->Control_1 |= TXD_UFO_EN;
4209 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4210 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4211#ifdef __BIG_ENDIAN
Al Viro3459feb2008-03-16 22:23:14 +00004212 /* both variants do cpu_to_be64(be32_to_cpu(...)) */
Surjit Reang2fda0962008-01-24 02:08:59 -08004213 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004214 (__force u64)skb_shinfo(skb)->ip6_frag_id;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004215#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004216 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004217 (__force u64)skb_shinfo(skb)->ip6_frag_id << 32;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004218#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004219 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004220 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00004221 fifo->ufo_in_band_v,
4222 sizeof(u64),
4223 PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004224 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004225 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004226 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004227 }
4228
Joe Perchesd44570e2009-08-24 17:29:44 +00004229 txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
4230 frg_len, PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004231 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004232 goto pci_map_failed;
4233
Joe Perchesd44570e2009-08-24 17:29:44 +00004234 txdp->Host_Control = (unsigned long)skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004235 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004236 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004237 txdp->Control_1 |= TXD_UFO_EN;
4238
4239 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004240 /* For fragmented SKB. */
4241 for (i = 0; i < frg_cnt; i++) {
4242 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004243 /* A '0' length fragment will be ignored */
4244 if (!frag->size)
4245 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004246 txdp++;
Joe Perchesd44570e2009-08-24 17:29:44 +00004247 txdp->Buffer_Pointer = (u64)pci_map_page(sp->pdev, frag->page,
4248 frag->page_offset,
4249 frag->size,
4250 PCI_DMA_TODEVICE);
Ananda Rajuefd51b52006-01-19 14:11:54 -05004251 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
Ananda Raju75c30b12006-07-24 19:55:09 -04004252 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004253 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004254 }
4255 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4256
Ananda Raju75c30b12006-07-24 19:55:09 -04004257 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004258 frg_cnt++; /* as Txd0 was used for inband header */
4259
Linus Torvalds1da177e2005-04-16 15:20:36 -07004260 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004261 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004262 writeq(val64, &tx_fifo->TxDL_Pointer);
4263
4264 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4265 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004266 if (offload_type)
4267 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004268
Linus Torvalds1da177e2005-04-16 15:20:36 -07004269 writeq(val64, &tx_fifo->List_Control);
4270
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004271 mmiowb();
4272
Linus Torvalds1da177e2005-04-16 15:20:36 -07004273 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004274 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004275 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004276 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004277
4278 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004279 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Joe Perchesffb5df62009-08-24 17:29:47 +00004280 swstats->fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004281 DBG_PRINT(TX_DBG,
4282 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4283 put_off, get_off);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004284 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004285 }
Joe Perchesffb5df62009-08-24 17:29:47 +00004286 swstats->mem_allocated += skb->truesize;
Surjit Reang2fda0962008-01-24 02:08:59 -08004287 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004288
Sreenivasa Honnurf6f4bfa2008-03-25 15:11:56 -04004289 if (sp->config.intr_type == MSI_X)
4290 tx_intr_handler(fifo);
4291
Patrick McHardy6ed10652009-06-23 06:03:08 +00004292 return NETDEV_TX_OK;
Joe Perchesffb5df62009-08-24 17:29:47 +00004293
Veena Parat491abf22007-07-23 02:37:14 -04004294pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00004295 swstats->pci_map_fail_cnt++;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004296 s2io_stop_tx_queue(sp, fifo->fifo_no);
Joe Perchesffb5df62009-08-24 17:29:47 +00004297 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04004298 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004299 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004300 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004301}
4302
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004303static void
4304s2io_alarm_handle(unsigned long data)
4305{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004306 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004307 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004308
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004309 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004310 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4311}
4312
David Howells7d12e782006-10-05 14:55:46 +01004313static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004314{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004315 struct ring_info *ring = (struct ring_info *)dev_id;
4316 struct s2io_nic *sp = ring->nic;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004317 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004318
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004319 if (unlikely(!is_s2io_card_up(sp)))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004320 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004321
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004322 if (sp->config.napi) {
Al Viro1a79d1c2008-06-02 10:59:02 +01004323 u8 __iomem *addr = NULL;
4324 u8 val8 = 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004325
Al Viro1a79d1c2008-06-02 10:59:02 +01004326 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004327 addr += (7 - ring->ring_no);
4328 val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
4329 writeb(val8, addr);
4330 val8 = readb(addr);
Ben Hutchings288379f2009-01-19 16:43:59 -08004331 napi_schedule(&ring->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004332 } else {
4333 rx_intr_handler(ring, 0);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004334 s2io_chk_rx_buffers(sp, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004335 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004336
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004337 return IRQ_HANDLED;
4338}
4339
David Howells7d12e782006-10-05 14:55:46 +01004340static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004341{
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004342 int i;
4343 struct fifo_info *fifos = (struct fifo_info *)dev_id;
4344 struct s2io_nic *sp = fifos->nic;
4345 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4346 struct config_param *config = &sp->config;
4347 u64 reason;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004348
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004349 if (unlikely(!is_s2io_card_up(sp)))
4350 return IRQ_NONE;
4351
4352 reason = readq(&bar0->general_int_status);
4353 if (unlikely(reason == S2IO_MINUS_ONE))
4354 /* Nothing much can be done. Get out */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004355 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004356
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004357 if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
4358 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004359
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004360 if (reason & GEN_INTR_TXPIC)
4361 s2io_txpic_intr_handle(sp);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004362
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004363 if (reason & GEN_INTR_TXTRAFFIC)
4364 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004365
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004366 for (i = 0; i < config->tx_fifo_num; i++)
4367 tx_intr_handler(&fifos[i]);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004368
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004369 writeq(sp->general_int_mask, &bar0->general_int_mask);
4370 readl(&bar0->general_int_status);
4371 return IRQ_HANDLED;
4372 }
4373 /* The interrupt was not raised by us */
4374 return IRQ_NONE;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004375}
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004376
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004377static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004378{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004379 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004380 u64 val64;
4381
4382 val64 = readq(&bar0->pic_int_status);
4383 if (val64 & PIC_INT_GPIO) {
4384 val64 = readq(&bar0->gpio_int_reg);
4385 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4386 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004387 /*
4388 * This is unstable state so clear both up/down
4389 * interrupt and adapter to re-evaluate the link state.
4390 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004391 val64 |= GPIO_INT_REG_LINK_DOWN;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004392 val64 |= GPIO_INT_REG_LINK_UP;
4393 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004394 val64 = readq(&bar0->gpio_int_mask);
4395 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4396 GPIO_INT_MASK_LINK_DOWN);
4397 writeq(val64, &bar0->gpio_int_mask);
Joe Perchesd44570e2009-08-24 17:29:44 +00004398 } else if (val64 & GPIO_INT_REG_LINK_UP) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004399 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004400 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004401 val64 = readq(&bar0->adapter_control);
4402 val64 |= ADAPTER_CNTL_EN;
4403 writeq(val64, &bar0->adapter_control);
4404 val64 |= ADAPTER_LED_ON;
4405 writeq(val64, &bar0->adapter_control);
4406 if (!sp->device_enabled_once)
4407 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004408
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004409 s2io_link(sp, LINK_UP);
4410 /*
4411 * unmask link down interrupt and mask link-up
4412 * intr
4413 */
4414 val64 = readq(&bar0->gpio_int_mask);
4415 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4416 val64 |= GPIO_INT_MASK_LINK_UP;
4417 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004418
Joe Perchesd44570e2009-08-24 17:29:44 +00004419 } else if (val64 & GPIO_INT_REG_LINK_DOWN) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004420 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004421 s2io_link(sp, LINK_DOWN);
4422 /* Link is down so unmaks link up interrupt */
4423 val64 = readq(&bar0->gpio_int_mask);
4424 val64 &= ~GPIO_INT_MASK_LINK_UP;
4425 val64 |= GPIO_INT_MASK_LINK_DOWN;
4426 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004427
4428 /* turn off LED */
4429 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00004430 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004431 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004432 }
4433 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004434 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004435}
4436
Linus Torvalds1da177e2005-04-16 15:20:36 -07004437/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004438 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4439 * @value: alarm bits
4440 * @addr: address value
4441 * @cnt: counter variable
4442 * Description: Check for alarm and increment the counter
4443 * Return Value:
4444 * 1 - if alarm bit set
4445 * 0 - if alarm bit is not set
4446 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004447static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr,
4448 unsigned long long *cnt)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004449{
4450 u64 val64;
4451 val64 = readq(addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00004452 if (val64 & value) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004453 writeq(val64, addr);
4454 (*cnt)++;
4455 return 1;
4456 }
4457 return 0;
4458
4459}
4460
4461/**
4462 * s2io_handle_errors - Xframe error indication handler
4463 * @nic: device private variable
4464 * Description: Handle alarms such as loss of link, single or
4465 * double ECC errors, critical and serious errors.
4466 * Return Value:
4467 * NONE
4468 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004469static void s2io_handle_errors(void *dev_id)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004470{
Joe Perchesd44570e2009-08-24 17:29:44 +00004471 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004472 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004473 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Joe Perchesd44570e2009-08-24 17:29:44 +00004474 u64 temp64 = 0, val64 = 0;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004475 int i = 0;
4476
4477 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4478 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4479
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004480 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004481 return;
4482
4483 if (pci_channel_offline(sp->pdev))
4484 return;
4485
4486 memset(&sw_stat->ring_full_cnt, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00004487 sizeof(sw_stat->ring_full_cnt));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004488
4489 /* Handling the XPAK counters update */
Joe Perchesd44570e2009-08-24 17:29:44 +00004490 if (stats->xpak_timer_count < 72000) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004491 /* waiting for an hour */
4492 stats->xpak_timer_count++;
4493 } else {
4494 s2io_updt_xpak_counter(dev);
4495 /* reset the count to zero */
4496 stats->xpak_timer_count = 0;
4497 }
4498
4499 /* Handling link status change error Intr */
4500 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4501 val64 = readq(&bar0->mac_rmac_err_reg);
4502 writeq(val64, &bar0->mac_rmac_err_reg);
4503 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4504 schedule_work(&sp->set_link_task);
4505 }
4506
4507 /* In case of a serious error, the device will be Reset. */
4508 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
Joe Perchesd44570e2009-08-24 17:29:44 +00004509 &sw_stat->serious_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004510 goto reset;
4511
4512 /* Check for data parity error */
4513 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
Joe Perchesd44570e2009-08-24 17:29:44 +00004514 &sw_stat->parity_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004515 goto reset;
4516
4517 /* Check for ring full counter */
4518 if (sp->device_type == XFRAME_II_DEVICE) {
4519 val64 = readq(&bar0->ring_bump_counter1);
Joe Perchesd44570e2009-08-24 17:29:44 +00004520 for (i = 0; i < 4; i++) {
4521 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004522 temp64 >>= 64 - ((i+1)*16);
4523 sw_stat->ring_full_cnt[i] += temp64;
4524 }
4525
4526 val64 = readq(&bar0->ring_bump_counter2);
Joe Perchesd44570e2009-08-24 17:29:44 +00004527 for (i = 0; i < 4; i++) {
4528 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004529 temp64 >>= 64 - ((i+1)*16);
Joe Perchesd44570e2009-08-24 17:29:44 +00004530 sw_stat->ring_full_cnt[i+4] += temp64;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004531 }
4532 }
4533
4534 val64 = readq(&bar0->txdma_int_status);
4535 /*check for pfc_err*/
4536 if (val64 & TXDMA_PFC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004537 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
4538 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
4539 PFC_PCIX_ERR,
4540 &bar0->pfc_err_reg,
4541 &sw_stat->pfc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004542 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004543 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR,
4544 &bar0->pfc_err_reg,
4545 &sw_stat->pfc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004546 }
4547
4548 /*check for tda_err*/
4549 if (val64 & TXDMA_TDA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004550 if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR |
4551 TDA_SM0_ERR_ALARM |
4552 TDA_SM1_ERR_ALARM,
4553 &bar0->tda_err_reg,
4554 &sw_stat->tda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004555 goto reset;
4556 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004557 &bar0->tda_err_reg,
4558 &sw_stat->tda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004559 }
4560 /*check for pcc_err*/
4561 if (val64 & TXDMA_PCC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004562 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
4563 PCC_N_SERR | PCC_6_COF_OV_ERR |
4564 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
4565 PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR |
4566 PCC_TXB_ECC_DB_ERR,
4567 &bar0->pcc_err_reg,
4568 &sw_stat->pcc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004569 goto reset;
4570 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004571 &bar0->pcc_err_reg,
4572 &sw_stat->pcc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004573 }
4574
4575 /*check for tti_err*/
4576 if (val64 & TXDMA_TTI_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004577 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM,
4578 &bar0->tti_err_reg,
4579 &sw_stat->tti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004580 goto reset;
4581 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004582 &bar0->tti_err_reg,
4583 &sw_stat->tti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004584 }
4585
4586 /*check for lso_err*/
4587 if (val64 & TXDMA_LSO_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004588 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT |
4589 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4590 &bar0->lso_err_reg,
4591 &sw_stat->lso_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004592 goto reset;
4593 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
Joe Perchesd44570e2009-08-24 17:29:44 +00004594 &bar0->lso_err_reg,
4595 &sw_stat->lso_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004596 }
4597
4598 /*check for tpa_err*/
4599 if (val64 & TXDMA_TPA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004600 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM,
4601 &bar0->tpa_err_reg,
4602 &sw_stat->tpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004603 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004604 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP,
4605 &bar0->tpa_err_reg,
4606 &sw_stat->tpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004607 }
4608
4609 /*check for sm_err*/
4610 if (val64 & TXDMA_SM_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004611 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM,
4612 &bar0->sm_err_reg,
4613 &sw_stat->sm_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004614 goto reset;
4615 }
4616
4617 val64 = readq(&bar0->mac_int_status);
4618 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4619 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004620 &bar0->mac_tmac_err_reg,
4621 &sw_stat->mac_tmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004622 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004623 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
4624 TMAC_DESC_ECC_SG_ERR |
4625 TMAC_DESC_ECC_DB_ERR,
4626 &bar0->mac_tmac_err_reg,
4627 &sw_stat->mac_tmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004628 }
4629
4630 val64 = readq(&bar0->xgxs_int_status);
4631 if (val64 & XGXS_INT_STATUS_TXGXS) {
4632 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004633 &bar0->xgxs_txgxs_err_reg,
4634 &sw_stat->xgxs_txgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004635 goto reset;
4636 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004637 &bar0->xgxs_txgxs_err_reg,
4638 &sw_stat->xgxs_txgxs_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004639 }
4640
4641 val64 = readq(&bar0->rxdma_int_status);
4642 if (val64 & RXDMA_INT_RC_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004643 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR |
4644 RC_FTC_ECC_DB_ERR |
4645 RC_PRCn_SM_ERR_ALARM |
4646 RC_FTC_SM_ERR_ALARM,
4647 &bar0->rc_err_reg,
4648 &sw_stat->rc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004649 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004650 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR |
4651 RC_FTC_ECC_SG_ERR |
4652 RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4653 &sw_stat->rc_err_cnt);
4654 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn |
4655 PRC_PCI_AB_WR_Rn |
4656 PRC_PCI_AB_F_WR_Rn,
4657 &bar0->prc_pcix_err_reg,
4658 &sw_stat->prc_pcix_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004659 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004660 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn |
4661 PRC_PCI_DP_WR_Rn |
4662 PRC_PCI_DP_F_WR_Rn,
4663 &bar0->prc_pcix_err_reg,
4664 &sw_stat->prc_pcix_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004665 }
4666
4667 if (val64 & RXDMA_INT_RPA_INT_M) {
4668 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004669 &bar0->rpa_err_reg,
4670 &sw_stat->rpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004671 goto reset;
4672 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004673 &bar0->rpa_err_reg,
4674 &sw_stat->rpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004675 }
4676
4677 if (val64 & RXDMA_INT_RDA_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004678 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR |
4679 RDA_FRM_ECC_DB_N_AERR |
4680 RDA_SM1_ERR_ALARM |
4681 RDA_SM0_ERR_ALARM |
4682 RDA_RXD_ECC_DB_SERR,
4683 &bar0->rda_err_reg,
4684 &sw_stat->rda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004685 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004686 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR |
4687 RDA_FRM_ECC_SG_ERR |
4688 RDA_MISC_ERR |
4689 RDA_PCIX_ERR,
4690 &bar0->rda_err_reg,
4691 &sw_stat->rda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004692 }
4693
4694 if (val64 & RXDMA_INT_RTI_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004695 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM,
4696 &bar0->rti_err_reg,
4697 &sw_stat->rti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004698 goto reset;
4699 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004700 &bar0->rti_err_reg,
4701 &sw_stat->rti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004702 }
4703
4704 val64 = readq(&bar0->mac_int_status);
4705 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4706 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004707 &bar0->mac_rmac_err_reg,
4708 &sw_stat->mac_rmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004709 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004710 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT |
4711 RMAC_SINGLE_ECC_ERR |
4712 RMAC_DOUBLE_ECC_ERR,
4713 &bar0->mac_rmac_err_reg,
4714 &sw_stat->mac_rmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004715 }
4716
4717 val64 = readq(&bar0->xgxs_int_status);
4718 if (val64 & XGXS_INT_STATUS_RXGXS) {
4719 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004720 &bar0->xgxs_rxgxs_err_reg,
4721 &sw_stat->xgxs_rxgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004722 goto reset;
4723 }
4724
4725 val64 = readq(&bar0->mc_int_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004726 if (val64 & MC_INT_STATUS_MC_INT) {
4727 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR,
4728 &bar0->mc_err_reg,
4729 &sw_stat->mc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004730 goto reset;
4731
4732 /* Handling Ecc errors */
4733 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4734 writeq(val64, &bar0->mc_err_reg);
4735 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4736 sw_stat->double_ecc_errs++;
4737 if (sp->device_type != XFRAME_II_DEVICE) {
4738 /*
4739 * Reset XframeI only if critical error
4740 */
4741 if (val64 &
Joe Perchesd44570e2009-08-24 17:29:44 +00004742 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4743 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4744 goto reset;
4745 }
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004746 } else
4747 sw_stat->single_ecc_errs++;
4748 }
4749 }
4750 return;
4751
4752reset:
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004753 s2io_stop_all_tx_queue(sp);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004754 schedule_work(&sp->rst_timer_task);
4755 sw_stat->soft_reset_cnt++;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004756}
4757
4758/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004759 * s2io_isr - ISR handler of the device .
4760 * @irq: the irq of the device.
4761 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004762 * Description: This function is the ISR handler of the device. It
4763 * identifies the reason for the interrupt and calls the relevant
4764 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004765 * recv buffers, if their numbers are below the panic value which is
4766 * presently set to 25% of the original number of rcv buffers allocated.
4767 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004768 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004769 * IRQ_NONE: will be returned if interrupt is not from our device
4770 */
David Howells7d12e782006-10-05 14:55:46 +01004771static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004772{
Joe Perchesd44570e2009-08-24 17:29:44 +00004773 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004774 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004775 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004776 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004777 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004778 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004779 struct config_param *config;
4780
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004781 /* Pretend we handled any irq's from a disconnected card */
4782 if (pci_channel_offline(sp->pdev))
4783 return IRQ_NONE;
4784
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004785 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004786 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004787
Linus Torvalds1da177e2005-04-16 15:20:36 -07004788 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00004789 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004790
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004791 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792 * Identify the cause for interrupt and call the appropriate
4793 * interrupt handler. Causes for the interrupt could be;
4794 * 1. Rx of packet.
4795 * 2. Tx complete.
4796 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004797 */
4798 reason = readq(&bar0->general_int_status);
4799
Joe Perchesd44570e2009-08-24 17:29:44 +00004800 if (unlikely(reason == S2IO_MINUS_ONE))
4801 return IRQ_HANDLED; /* Nothing much can be done. Get out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004802
Joe Perchesd44570e2009-08-24 17:29:44 +00004803 if (reason &
4804 (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004805 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4806
4807 if (config->napi) {
4808 if (reason & GEN_INTR_RXTRAFFIC) {
Ben Hutchings288379f2009-01-19 16:43:59 -08004809 napi_schedule(&sp->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004810 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
4811 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
4812 readl(&bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004813 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004814 } else {
4815 /*
4816 * rx_traffic_int reg is an R1 register, writing all 1's
4817 * will ensure that the actual interrupt causing bit
4818 * get's cleared and hence a read can be avoided.
4819 */
4820 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004821 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004822
Joe Perches13d866a2009-08-24 17:29:41 +00004823 for (i = 0; i < config->rx_ring_num; i++) {
4824 struct ring_info *ring = &mac_control->rings[i];
4825
4826 rx_intr_handler(ring, 0);
4827 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004828 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004829
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004830 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004831 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004832 * will ensure that the actual interrupt causing bit get's
4833 * cleared and hence a read can be avoided.
4834 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004835 if (reason & GEN_INTR_TXTRAFFIC)
4836 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004837
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004838 for (i = 0; i < config->tx_fifo_num; i++)
4839 tx_intr_handler(&mac_control->fifos[i]);
4840
4841 if (reason & GEN_INTR_TXPIC)
4842 s2io_txpic_intr_handle(sp);
4843
4844 /*
4845 * Reallocate the buffers from the interrupt handler itself.
4846 */
4847 if (!config->napi) {
Joe Perches13d866a2009-08-24 17:29:41 +00004848 for (i = 0; i < config->rx_ring_num; i++) {
4849 struct ring_info *ring = &mac_control->rings[i];
4850
4851 s2io_chk_rx_buffers(sp, ring);
4852 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004853 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004854 writeq(sp->general_int_mask, &bar0->general_int_mask);
4855 readl(&bar0->general_int_status);
4856
4857 return IRQ_HANDLED;
4858
Joe Perchesd44570e2009-08-24 17:29:44 +00004859 } else if (!reason) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004860 /* The interrupt was not raised by us */
4861 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004862 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004863
Linus Torvalds1da177e2005-04-16 15:20:36 -07004864 return IRQ_HANDLED;
4865}
4866
4867/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004868 * s2io_updt_stats -
4869 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004870static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004871{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004872 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004873 u64 val64;
4874 int cnt = 0;
4875
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004876 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004877 /* Apprx 30us on a 133 MHz bus */
4878 val64 = SET_UPDT_CLICKS(10) |
4879 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4880 writeq(val64, &bar0->stat_cfg);
4881 do {
4882 udelay(100);
4883 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004884 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004885 break;
4886 cnt++;
4887 if (cnt == 5)
4888 break; /* Updt failed */
Joe Perchesd44570e2009-08-24 17:29:44 +00004889 } while (1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004890 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004891}
4892
4893/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004894 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004895 * @dev : pointer to the device structure.
4896 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004897 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004898 * structure and returns a pointer to the same.
4899 * Return value:
4900 * pointer to the updated net_device_stats structure.
4901 */
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004902static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004903{
Wang Chen4cf16532008-11-12 23:38:14 -08004904 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00004905 struct mac_info *mac_control = &sp->mac_control;
4906 struct stat_block *stats = mac_control->stats_info;
Jon Mason4a490432010-07-02 09:13:49 +00004907 u64 delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004908
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004909 /* Configure Stats for immediate updt */
4910 s2io_updt_stats(sp);
4911
Jon Mason4a490432010-07-02 09:13:49 +00004912 /* A device reset will cause the on-adapter statistics to be zero'ed.
4913 * This can be done while running by changing the MTU. To prevent the
4914 * system from having the stats zero'ed, the driver keeps a copy of the
4915 * last update to the system (which is also zero'ed on reset). This
4916 * enables the driver to accurately know the delta between the last
4917 * update and the current update.
4918 */
4919 delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
4920 le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets;
4921 sp->stats.rx_packets += delta;
4922 dev->stats.rx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004923
Jon Mason4a490432010-07-02 09:13:49 +00004924 delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 |
4925 le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets;
4926 sp->stats.tx_packets += delta;
4927 dev->stats.tx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004928
Jon Mason4a490432010-07-02 09:13:49 +00004929 delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
4930 le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes;
4931 sp->stats.rx_bytes += delta;
4932 dev->stats.rx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004933
Jon Mason4a490432010-07-02 09:13:49 +00004934 delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
4935 le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes;
4936 sp->stats.tx_bytes += delta;
4937 dev->stats.tx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004938
Jon Mason4a490432010-07-02 09:13:49 +00004939 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors;
4940 sp->stats.rx_errors += delta;
4941 dev->stats.rx_errors += delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004942
Jon Mason4a490432010-07-02 09:13:49 +00004943 delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
4944 le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors;
4945 sp->stats.tx_errors += delta;
4946 dev->stats.tx_errors += delta;
Joe Perches13d866a2009-08-24 17:29:41 +00004947
Jon Mason4a490432010-07-02 09:13:49 +00004948 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped;
4949 sp->stats.rx_dropped += delta;
4950 dev->stats.rx_dropped += delta;
4951
4952 delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped;
4953 sp->stats.tx_dropped += delta;
4954 dev->stats.tx_dropped += delta;
4955
4956 /* The adapter MAC interprets pause frames as multicast packets, but
4957 * does not pass them up. This erroneously increases the multicast
4958 * packet count and needs to be deducted when the multicast frame count
4959 * is queried.
4960 */
4961 delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
4962 le32_to_cpu(stats->rmac_vld_mcst_frms);
4963 delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms);
4964 delta -= sp->stats.multicast;
4965 sp->stats.multicast += delta;
4966 dev->stats.multicast += delta;
4967
4968 delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
4969 le32_to_cpu(stats->rmac_usized_frms)) +
4970 le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors;
4971 sp->stats.rx_length_errors += delta;
4972 dev->stats.rx_length_errors += delta;
4973
4974 delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors;
4975 sp->stats.rx_crc_errors += delta;
4976 dev->stats.rx_crc_errors += delta;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004977
Joe Perchesd44570e2009-08-24 17:29:44 +00004978 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004979}
4980
4981/**
4982 * s2io_set_multicast - entry point for multicast address enable/disable.
4983 * @dev : pointer to the device structure
4984 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004985 * This function is a driver entry point which gets called by the kernel
4986 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004987 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4988 * determine, if multicast address must be enabled or if promiscuous mode
4989 * is to be disabled etc.
4990 * Return value:
4991 * void.
4992 */
4993
4994static void s2io_set_multicast(struct net_device *dev)
4995{
4996 int i, j, prev_cnt;
Jiri Pirko22bedad32010-04-01 21:22:57 +00004997 struct netdev_hw_addr *ha;
Wang Chen4cf16532008-11-12 23:38:14 -08004998 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004999 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005000 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
Joe Perchesd44570e2009-08-24 17:29:44 +00005001 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005002 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005003 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005004 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005005
5006 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
5007 /* Enable all Multicast addresses */
5008 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
5009 &bar0->rmac_addr_data0_mem);
5010 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
5011 &bar0->rmac_addr_data1_mem);
5012 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005013 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5014 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005015 writeq(val64, &bar0->rmac_addr_cmd_mem);
5016 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005017 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005018 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5019 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005020
5021 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005022 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005023 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
5024 /* Disable all Multicast addresses */
5025 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5026 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07005027 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
5028 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005029 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005030 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5031 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005032 writeq(val64, &bar0->rmac_addr_cmd_mem);
5033 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005034 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005035 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5036 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005037
5038 sp->m_cast_flg = 0;
5039 sp->all_multi_pos = 0;
5040 }
5041
5042 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
5043 /* Put the NIC into promiscuous mode */
5044 add = &bar0->mac_cfg;
5045 val64 = readq(&bar0->mac_cfg);
5046 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
5047
5048 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005049 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005050 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5051 writel((u32) (val64 >> 32), (add + 4));
5052
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005053 if (vlan_tag_strip != 1) {
5054 val64 = readq(&bar0->rx_pa_cfg);
5055 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
5056 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005057 sp->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005058 }
5059
Linus Torvalds1da177e2005-04-16 15:20:36 -07005060 val64 = readq(&bar0->mac_cfg);
5061 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07005062 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005063 dev->name);
5064 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
5065 /* Remove the NIC from promiscuous mode */
5066 add = &bar0->mac_cfg;
5067 val64 = readq(&bar0->mac_cfg);
5068 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
5069
5070 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005071 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005072 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5073 writel((u32) (val64 >> 32), (add + 4));
5074
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005075 if (vlan_tag_strip != 0) {
5076 val64 = readq(&bar0->rx_pa_cfg);
5077 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
5078 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005079 sp->vlan_strip_flag = 1;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005080 }
5081
Linus Torvalds1da177e2005-04-16 15:20:36 -07005082 val64 = readq(&bar0->mac_cfg);
5083 sp->promisc_flg = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005084 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005085 }
5086
5087 /* Update individual M_CAST address list */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005088 if ((!sp->m_cast_flg) && netdev_mc_count(dev)) {
5089 if (netdev_mc_count(dev) >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005090 (config->max_mc_addr - config->max_mac_addr)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005091 DBG_PRINT(ERR_DBG,
5092 "%s: No more Rx filters can be added - "
5093 "please enable ALL_MULTI instead\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005094 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005095 return;
5096 }
5097
5098 prev_cnt = sp->mc_addr_count;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005099 sp->mc_addr_count = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005100
5101 /* Clear out the previous list of Mc in the H/W. */
5102 for (i = 0; i < prev_cnt; i++) {
5103 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5104 &bar0->rmac_addr_data0_mem);
5105 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005106 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005107 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005108 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5109 RMAC_ADDR_CMD_MEM_OFFSET
5110 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005111 writeq(val64, &bar0->rmac_addr_cmd_mem);
5112
5113 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005114 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005115 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5116 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005117 DBG_PRINT(ERR_DBG,
5118 "%s: Adding Multicasts failed\n",
5119 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005120 return;
5121 }
5122 }
5123
5124 /* Create the new Rx filter list and update the same in H/W. */
Jiri Pirko55085902010-02-18 00:42:54 +00005125 i = 0;
Jiri Pirko22bedad32010-04-01 21:22:57 +00005126 netdev_for_each_mc_addr(ha, dev) {
Jeff Garzika7a80d52006-03-04 12:06:51 -05005127 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005128 for (j = 0; j < ETH_ALEN; j++) {
Jiri Pirko22bedad32010-04-01 21:22:57 +00005129 mac_addr |= ha->addr[j];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005130 mac_addr <<= 8;
5131 }
5132 mac_addr >>= 8;
5133 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
5134 &bar0->rmac_addr_data0_mem);
5135 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005136 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005137 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005138 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5139 RMAC_ADDR_CMD_MEM_OFFSET
5140 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005141 writeq(val64, &bar0->rmac_addr_cmd_mem);
5142
5143 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005144 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005145 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5146 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005147 DBG_PRINT(ERR_DBG,
5148 "%s: Adding Multicasts failed\n",
5149 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005150 return;
5151 }
Jiri Pirko55085902010-02-18 00:42:54 +00005152 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005153 }
5154 }
5155}
5156
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005157/* read from CAM unicast & multicast addresses and store it in
5158 * def_mac_addr structure
5159 */
Hannes Ederdac499f2008-12-25 23:56:45 -08005160static void do_s2io_store_unicast_mc(struct s2io_nic *sp)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005161{
5162 int offset;
5163 u64 mac_addr = 0x0;
5164 struct config_param *config = &sp->config;
5165
5166 /* store unicast & multicast mac addresses */
5167 for (offset = 0; offset < config->max_mc_addr; offset++) {
5168 mac_addr = do_s2io_read_unicast_mc(sp, offset);
5169 /* if read fails disable the entry */
5170 if (mac_addr == FAILURE)
5171 mac_addr = S2IO_DISABLE_MAC_ENTRY;
5172 do_s2io_copy_mac_addr(sp, offset, mac_addr);
5173 }
5174}
5175
5176/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
5177static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
5178{
5179 int offset;
5180 struct config_param *config = &sp->config;
5181 /* restore unicast mac address */
5182 for (offset = 0; offset < config->max_mac_addr; offset++)
5183 do_s2io_prog_unicast(sp->dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005184 sp->def_mac_addr[offset].mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005185
5186 /* restore multicast mac address */
5187 for (offset = config->mc_start_offset;
Joe Perchesd44570e2009-08-24 17:29:44 +00005188 offset < config->max_mc_addr; offset++)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005189 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
5190}
5191
5192/* add a multicast MAC address to CAM */
5193static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
5194{
5195 int i;
5196 u64 mac_addr = 0;
5197 struct config_param *config = &sp->config;
5198
5199 for (i = 0; i < ETH_ALEN; i++) {
5200 mac_addr <<= 8;
5201 mac_addr |= addr[i];
5202 }
5203 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
5204 return SUCCESS;
5205
5206 /* check if the multicast mac already preset in CAM */
5207 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
5208 u64 tmp64;
5209 tmp64 = do_s2io_read_unicast_mc(sp, i);
5210 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5211 break;
5212
5213 if (tmp64 == mac_addr)
5214 return SUCCESS;
5215 }
5216 if (i == config->max_mc_addr) {
5217 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005218 "CAM full no space left for multicast MAC\n");
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005219 return FAILURE;
5220 }
5221 /* Update the internal structure with this new mac address */
5222 do_s2io_copy_mac_addr(sp, i, mac_addr);
5223
Joe Perchesd44570e2009-08-24 17:29:44 +00005224 return do_s2io_add_mac(sp, mac_addr, i);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005225}
5226
5227/* add MAC address to CAM */
5228static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005229{
5230 u64 val64;
5231 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5232
5233 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
Joe Perchesd44570e2009-08-24 17:29:44 +00005234 &bar0->rmac_addr_data0_mem);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005235
Joe Perchesd44570e2009-08-24 17:29:44 +00005236 val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005237 RMAC_ADDR_CMD_MEM_OFFSET(off);
5238 writeq(val64, &bar0->rmac_addr_cmd_mem);
5239
5240 /* Wait till command completes */
5241 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005242 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5243 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005244 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005245 return FAILURE;
5246 }
5247 return SUCCESS;
5248}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005249/* deletes a specified unicast/multicast mac entry from CAM */
5250static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5251{
5252 int offset;
5253 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5254 struct config_param *config = &sp->config;
5255
5256 for (offset = 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00005257 offset < config->max_mc_addr; offset++) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005258 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5259 if (tmp64 == addr) {
5260 /* disable the entry by writing 0xffffffffffffULL */
5261 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5262 return FAILURE;
5263 /* store the new mac list from CAM */
5264 do_s2io_store_unicast_mc(sp);
5265 return SUCCESS;
5266 }
5267 }
5268 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00005269 (unsigned long long)addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005270 return FAILURE;
5271}
5272
5273/* read mac entries from CAM */
5274static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5275{
5276 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5277 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5278
5279 /* read mac addr */
Joe Perchesd44570e2009-08-24 17:29:44 +00005280 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005281 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5282 writeq(val64, &bar0->rmac_addr_cmd_mem);
5283
5284 /* Wait till command completes */
5285 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005286 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5287 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005288 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5289 return FAILURE;
5290 }
5291 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00005292
5293 return tmp64 >> 16;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005294}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005295
Linus Torvalds1da177e2005-04-16 15:20:36 -07005296/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005297 * s2io_set_mac_addr driver entry point
5298 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005299
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005300static int s2io_set_mac_addr(struct net_device *dev, void *p)
5301{
5302 struct sockaddr *addr = p;
5303
5304 if (!is_valid_ether_addr(addr->sa_data))
5305 return -EINVAL;
5306
5307 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5308
5309 /* store the MAC address in CAM */
Joe Perchesd44570e2009-08-24 17:29:44 +00005310 return do_s2io_prog_unicast(dev, dev->dev_addr);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005311}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005312/**
5313 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005314 * @dev : pointer to the device structure.
5315 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005316 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005317 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005318 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005319 * as defined in errno.h file on failure.
5320 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005321
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005322static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005323{
Wang Chen4cf16532008-11-12 23:38:14 -08005324 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005325 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005326 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005327 u64 tmp64;
5328 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005329
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005330 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00005331 * Set the new MAC address as the new unicast filter and reflect this
5332 * change on the device address registered with the OS. It will be
5333 * at offset 0.
5334 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005335 for (i = 0; i < ETH_ALEN; i++) {
5336 mac_addr <<= 8;
5337 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005338 perm_addr <<= 8;
5339 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005340 }
5341
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005342 /* check if the dev_addr is different than perm_addr */
5343 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005344 return SUCCESS;
5345
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005346 /* check if the mac already preset in CAM */
5347 for (i = 1; i < config->max_mac_addr; i++) {
5348 tmp64 = do_s2io_read_unicast_mc(sp, i);
5349 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5350 break;
5351
5352 if (tmp64 == mac_addr) {
5353 DBG_PRINT(INFO_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005354 "MAC addr:0x%llx already present in CAM\n",
5355 (unsigned long long)mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005356 return SUCCESS;
5357 }
5358 }
5359 if (i == config->max_mac_addr) {
5360 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5361 return FAILURE;
5362 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005363 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005364 do_s2io_copy_mac_addr(sp, i, mac_addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00005365
5366 return do_s2io_add_mac(sp, mac_addr, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005367}
5368
5369/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005370 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005371 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5372 * @info: pointer to the structure with parameters given by ethtool to set
5373 * link information.
5374 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005375 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005376 * the NIC.
5377 * Return value:
5378 * 0 on success.
Joe Perchesd44570e2009-08-24 17:29:44 +00005379 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005380
5381static int s2io_ethtool_sset(struct net_device *dev,
5382 struct ethtool_cmd *info)
5383{
Wang Chen4cf16532008-11-12 23:38:14 -08005384 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005385 if ((info->autoneg == AUTONEG_ENABLE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005386 (info->speed != SPEED_10000) ||
5387 (info->duplex != DUPLEX_FULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005388 return -EINVAL;
5389 else {
5390 s2io_close(sp->dev);
5391 s2io_open(sp->dev);
5392 }
5393
5394 return 0;
5395}
5396
5397/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005398 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005399 * @sp : private member of the device structure, pointer to the
5400 * s2io_nic structure.
5401 * @info : pointer to the structure with parameters given by ethtool
5402 * to return link information.
5403 * Description:
5404 * Returns link specific information like speed, duplex etc.. to ethtool.
5405 * Return value :
5406 * return 0 on success.
5407 */
5408
5409static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5410{
Wang Chen4cf16532008-11-12 23:38:14 -08005411 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005412 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5413 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5414 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005415
5416 /* info->transceiver */
5417 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005418
5419 if (netif_carrier_ok(sp->dev)) {
5420 info->speed = 10000;
5421 info->duplex = DUPLEX_FULL;
5422 } else {
5423 info->speed = -1;
5424 info->duplex = -1;
5425 }
5426
5427 info->autoneg = AUTONEG_DISABLE;
5428 return 0;
5429}
5430
5431/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005432 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5433 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005434 * s2io_nic structure.
5435 * @info : pointer to the structure with parameters given by ethtool to
5436 * return driver information.
5437 * Description:
5438 * Returns driver specefic information like name, version etc.. to ethtool.
5439 * Return value:
5440 * void
5441 */
5442
5443static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5444 struct ethtool_drvinfo *info)
5445{
Wang Chen4cf16532008-11-12 23:38:14 -08005446 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005447
John W. Linvilledbc23092005-09-28 17:50:51 -04005448 strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
5449 strncpy(info->version, s2io_driver_version, sizeof(info->version));
5450 strncpy(info->fw_version, "", sizeof(info->fw_version));
5451 strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005452 info->regdump_len = XENA_REG_SPACE;
5453 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005454}
5455
5456/**
5457 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005458 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005459 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005460 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005461 * dumping the registers.
5462 * @reg_space: The input argumnet into which all the registers are dumped.
5463 * Description:
5464 * Dumps the entire register space of xFrame NIC into the user given
5465 * buffer area.
5466 * Return value :
5467 * void .
Joe Perchesd44570e2009-08-24 17:29:44 +00005468 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005469
5470static void s2io_ethtool_gregs(struct net_device *dev,
5471 struct ethtool_regs *regs, void *space)
5472{
5473 int i;
5474 u64 reg;
Joe Perchesd44570e2009-08-24 17:29:44 +00005475 u8 *reg_space = (u8 *)space;
Wang Chen4cf16532008-11-12 23:38:14 -08005476 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005477
5478 regs->len = XENA_REG_SPACE;
5479 regs->version = sp->pdev->subsystem_device;
5480
5481 for (i = 0; i < regs->len; i += 8) {
5482 reg = readq(sp->bar0 + i);
5483 memcpy((reg_space + i), &reg, 8);
5484 }
5485}
5486
5487/**
5488 * s2io_phy_id - timer function that alternates adapter LED.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005489 * @data : address of the private member of the device structure, which
Linus Torvalds1da177e2005-04-16 15:20:36 -07005490 * is a pointer to the s2io_nic structure, provided as an u32.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005491 * Description: This is actually the timer function that alternates the
5492 * adapter LED bit of the adapter control bit to set/reset every time on
5493 * invocation. The timer is set for 1/2 a second, hence tha NIC blinks
Linus Torvalds1da177e2005-04-16 15:20:36 -07005494 * once every second.
Joe Perchesd44570e2009-08-24 17:29:44 +00005495 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005496static void s2io_phy_id(unsigned long data)
5497{
Joe Perchesd44570e2009-08-24 17:29:44 +00005498 struct s2io_nic *sp = (struct s2io_nic *)data;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005499 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005500 u64 val64 = 0;
5501 u16 subid;
5502
5503 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005504 if ((sp->device_type == XFRAME_II_DEVICE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005505 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005506 val64 = readq(&bar0->gpio_control);
5507 val64 ^= GPIO_CTRL_GPIO_0;
5508 writeq(val64, &bar0->gpio_control);
5509 } else {
5510 val64 = readq(&bar0->adapter_control);
5511 val64 ^= ADAPTER_LED_ON;
5512 writeq(val64, &bar0->adapter_control);
5513 }
5514
5515 mod_timer(&sp->id_timer, jiffies + HZ / 2);
5516}
5517
5518/**
5519 * s2io_ethtool_idnic - To physically identify the nic on the system.
5520 * @sp : private member of the device structure, which is a pointer to the
5521 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005522 * @id : pointer to the structure with identification parameters given by
Linus Torvalds1da177e2005-04-16 15:20:36 -07005523 * ethtool.
5524 * Description: Used to physically identify the NIC on the system.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005525 * The Link LED will blink for a time specified by the user for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005526 * identification.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005527 * NOTE: The Link has to be Up to be able to blink the LED. Hence
Linus Torvalds1da177e2005-04-16 15:20:36 -07005528 * identification is possible only if it's link is up.
5529 * Return value:
5530 * int , returns 0 on success
5531 */
5532
5533static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
5534{
5535 u64 val64 = 0, last_gpio_ctrl_val;
Wang Chen4cf16532008-11-12 23:38:14 -08005536 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005537 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005538 u16 subid;
5539
5540 subid = sp->pdev->subsystem_device;
5541 last_gpio_ctrl_val = readq(&bar0->gpio_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00005542 if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005543 val64 = readq(&bar0->adapter_control);
5544 if (!(val64 & ADAPTER_CNTL_EN)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00005545 pr_err("Adapter Link down, cannot blink LED\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005546 return -EFAULT;
5547 }
5548 }
5549 if (sp->id_timer.function == NULL) {
5550 init_timer(&sp->id_timer);
5551 sp->id_timer.function = s2io_phy_id;
Joe Perchesd44570e2009-08-24 17:29:44 +00005552 sp->id_timer.data = (unsigned long)sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005553 }
5554 mod_timer(&sp->id_timer, jiffies);
5555 if (data)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005556 msleep_interruptible(data * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005557 else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005558 msleep_interruptible(MAX_FLICKER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005559 del_timer_sync(&sp->id_timer);
5560
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005561 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005562 writeq(last_gpio_ctrl_val, &bar0->gpio_control);
5563 last_gpio_ctrl_val = readq(&bar0->gpio_control);
5564 }
5565
5566 return 0;
5567}
5568
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005569static void s2io_ethtool_gringparam(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005570 struct ethtool_ringparam *ering)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005571{
Wang Chen4cf16532008-11-12 23:38:14 -08005572 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00005573 int i, tx_desc_count = 0, rx_desc_count = 0;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005574
Jon Mason1853e2e2010-12-10 15:40:01 +00005575 if (sp->rxd_mode == RXD_MODE_1) {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005576 ering->rx_max_pending = MAX_RX_DESC_1;
Jon Mason1853e2e2010-12-10 15:40:01 +00005577 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5578 } else {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005579 ering->rx_max_pending = MAX_RX_DESC_2;
Jon Mason1853e2e2010-12-10 15:40:01 +00005580 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5581 }
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005582
5583 ering->rx_mini_max_pending = 0;
Jon Mason1853e2e2010-12-10 15:40:01 +00005584 ering->tx_max_pending = MAX_TX_DESC;
5585
5586 for (i = 0; i < sp->config.rx_ring_num; i++)
5587 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
5588 ering->rx_pending = rx_desc_count;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005589 ering->rx_jumbo_pending = rx_desc_count;
Jon Mason1853e2e2010-12-10 15:40:01 +00005590 ering->rx_mini_pending = 0;
5591
5592 for (i = 0; i < sp->config.tx_fifo_num; i++)
5593 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
5594 ering->tx_pending = tx_desc_count;
5595 DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds);
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005596}
5597
Linus Torvalds1da177e2005-04-16 15:20:36 -07005598/**
5599 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005600 * @sp : private member of the device structure, which is a pointer to the
5601 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005602 * @ep : pointer to the structure with pause parameters given by ethtool.
5603 * Description:
5604 * Returns the Pause frame generation and reception capability of the NIC.
5605 * Return value:
5606 * void
5607 */
5608static void s2io_ethtool_getpause_data(struct net_device *dev,
5609 struct ethtool_pauseparam *ep)
5610{
5611 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005612 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005613 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005614
5615 val64 = readq(&bar0->rmac_pause_cfg);
5616 if (val64 & RMAC_PAUSE_GEN_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005617 ep->tx_pause = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005618 if (val64 & RMAC_PAUSE_RX_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005619 ep->rx_pause = true;
5620 ep->autoneg = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005621}
5622
5623/**
5624 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005625 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005626 * s2io_nic structure.
5627 * @ep : pointer to the structure with pause parameters given by ethtool.
5628 * Description:
5629 * It can be used to set or reset Pause frame generation or reception
5630 * support of the NIC.
5631 * Return value:
5632 * int, returns 0 on Success
5633 */
5634
5635static int s2io_ethtool_setpause_data(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005636 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005637{
5638 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005639 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005640 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005641
5642 val64 = readq(&bar0->rmac_pause_cfg);
5643 if (ep->tx_pause)
5644 val64 |= RMAC_PAUSE_GEN_ENABLE;
5645 else
5646 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5647 if (ep->rx_pause)
5648 val64 |= RMAC_PAUSE_RX_ENABLE;
5649 else
5650 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5651 writeq(val64, &bar0->rmac_pause_cfg);
5652 return 0;
5653}
5654
5655/**
5656 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005657 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005658 * s2io_nic structure.
5659 * @off : offset at which the data must be written
5660 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005661 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005662 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005663 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005664 * read data.
5665 * NOTE: Will allow to read only part of the EEPROM visible through the
5666 * I2C bus.
5667 * Return value:
5668 * -1 on failure and 0 on success.
5669 */
5670
5671#define S2IO_DEV_ID 5
Joe Perchesd44570e2009-08-24 17:29:44 +00005672static int read_eeprom(struct s2io_nic *sp, int off, u64 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005673{
5674 int ret = -1;
5675 u32 exit_cnt = 0;
5676 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005677 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005678
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005679 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005680 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5681 I2C_CONTROL_ADDR(off) |
5682 I2C_CONTROL_BYTE_CNT(0x3) |
5683 I2C_CONTROL_READ |
5684 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005685 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005686
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005687 while (exit_cnt < 5) {
5688 val64 = readq(&bar0->i2c_control);
5689 if (I2C_CONTROL_CNTL_END(val64)) {
5690 *data = I2C_CONTROL_GET_DATA(val64);
5691 ret = 0;
5692 break;
5693 }
5694 msleep(50);
5695 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005696 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005697 }
5698
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005699 if (sp->device_type == XFRAME_II_DEVICE) {
5700 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005701 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005702 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5703 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5704 val64 |= SPI_CONTROL_REQ;
5705 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5706 while (exit_cnt < 5) {
5707 val64 = readq(&bar0->spi_control);
5708 if (val64 & SPI_CONTROL_NACK) {
5709 ret = 1;
5710 break;
5711 } else if (val64 & SPI_CONTROL_DONE) {
5712 *data = readq(&bar0->spi_data);
5713 *data &= 0xffffff;
5714 ret = 0;
5715 break;
5716 }
5717 msleep(50);
5718 exit_cnt++;
5719 }
5720 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005721 return ret;
5722}
5723
5724/**
5725 * write_eeprom - actually writes the relevant part of the data value.
5726 * @sp : private member of the device structure, which is a pointer to the
5727 * s2io_nic structure.
5728 * @off : offset at which the data must be written
5729 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005730 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005731 * the Eeprom. (max of 3)
5732 * Description:
5733 * Actually writes the relevant part of the data value into the Eeprom
5734 * through the I2C bus.
5735 * Return value:
5736 * 0 on success, -1 on failure.
5737 */
5738
Joe Perchesd44570e2009-08-24 17:29:44 +00005739static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005740{
5741 int exit_cnt = 0, ret = -1;
5742 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005743 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005744
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005745 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005746 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5747 I2C_CONTROL_ADDR(off) |
5748 I2C_CONTROL_BYTE_CNT(cnt) |
5749 I2C_CONTROL_SET_DATA((u32)data) |
5750 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005751 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005752
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005753 while (exit_cnt < 5) {
5754 val64 = readq(&bar0->i2c_control);
5755 if (I2C_CONTROL_CNTL_END(val64)) {
5756 if (!(val64 & I2C_CONTROL_NACK))
5757 ret = 0;
5758 break;
5759 }
5760 msleep(50);
5761 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005762 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005763 }
5764
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005765 if (sp->device_type == XFRAME_II_DEVICE) {
5766 int write_cnt = (cnt == 8) ? 0 : cnt;
Joe Perchesd44570e2009-08-24 17:29:44 +00005767 writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005768
5769 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005770 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005771 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5772 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5773 val64 |= SPI_CONTROL_REQ;
5774 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5775 while (exit_cnt < 5) {
5776 val64 = readq(&bar0->spi_control);
5777 if (val64 & SPI_CONTROL_NACK) {
5778 ret = 1;
5779 break;
5780 } else if (val64 & SPI_CONTROL_DONE) {
5781 ret = 0;
5782 break;
5783 }
5784 msleep(50);
5785 exit_cnt++;
5786 }
5787 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005788 return ret;
5789}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005790static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005791{
Ananda Rajub41477f2006-07-24 19:52:49 -04005792 u8 *vpd_data;
5793 u8 data;
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005794 int i = 0, cnt, len, fail = 0;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005795 int vpd_addr = 0x80;
Joe Perchesffb5df62009-08-24 17:29:47 +00005796 struct swStat *swstats = &nic->mac_control.stats_info->sw_stat;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005797
5798 if (nic->device_type == XFRAME_II_DEVICE) {
5799 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5800 vpd_addr = 0x80;
Joe Perchesd44570e2009-08-24 17:29:44 +00005801 } else {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005802 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5803 vpd_addr = 0x50;
5804 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005805 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005806
Ananda Rajub41477f2006-07-24 19:52:49 -04005807 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005808 if (!vpd_data) {
Joe Perchesffb5df62009-08-24 17:29:47 +00005809 swstats->mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005810 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005811 }
Joe Perchesffb5df62009-08-24 17:29:47 +00005812 swstats->mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005813
Joe Perchesd44570e2009-08-24 17:29:44 +00005814 for (i = 0; i < 256; i += 4) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005815 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5816 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5817 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
Joe Perchesd44570e2009-08-24 17:29:44 +00005818 for (cnt = 0; cnt < 5; cnt++) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005819 msleep(2);
5820 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5821 if (data == 0x80)
5822 break;
5823 }
5824 if (cnt >= 5) {
5825 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5826 fail = 1;
5827 break;
5828 }
5829 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5830 (u32 *)&vpd_data[i]);
5831 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005832
Joe Perchesd44570e2009-08-24 17:29:44 +00005833 if (!fail) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005834 /* read serial number of adapter */
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005835 for (cnt = 0; cnt < 252; cnt++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005836 if ((vpd_data[cnt] == 'S') &&
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005837 (vpd_data[cnt+1] == 'N')) {
5838 len = vpd_data[cnt+2];
5839 if (len < min(VPD_STRING_LEN, 256-cnt-2)) {
5840 memcpy(nic->serial_num,
5841 &vpd_data[cnt + 3],
5842 len);
5843 memset(nic->serial_num+len,
5844 0,
5845 VPD_STRING_LEN-len);
5846 break;
5847 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005848 }
5849 }
5850 }
5851
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005852 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
5853 len = vpd_data[1];
5854 memcpy(nic->product_name, &vpd_data[3], len);
5855 nic->product_name[len] = 0;
5856 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005857 kfree(vpd_data);
Joe Perchesffb5df62009-08-24 17:29:47 +00005858 swstats->mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005859}
5860
Linus Torvalds1da177e2005-04-16 15:20:36 -07005861/**
5862 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5863 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005864 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005865 * containing all relevant information.
5866 * @data_buf : user defined value to be written into Eeprom.
5867 * Description: Reads the values stored in the Eeprom at given offset
5868 * for a given length. Stores these values int the input argument data
5869 * buffer 'data_buf' and returns these to the caller (ethtool.)
5870 * Return value:
5871 * int 0 on success
5872 */
5873
5874static int s2io_ethtool_geeprom(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005875 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005876{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005877 u32 i, valid;
5878 u64 data;
Wang Chen4cf16532008-11-12 23:38:14 -08005879 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005880
5881 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5882
5883 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5884 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5885
5886 for (i = 0; i < eeprom->len; i += 4) {
5887 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5888 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5889 return -EFAULT;
5890 }
5891 valid = INV(data);
5892 memcpy((data_buf + i), &valid, 4);
5893 }
5894 return 0;
5895}
5896
5897/**
5898 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5899 * @sp : private member of the device structure, which is a pointer to the
5900 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005901 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005902 * containing all relevant information.
5903 * @data_buf ; user defined value to be written into Eeprom.
5904 * Description:
5905 * Tries to write the user provided value in the Eeprom, at the offset
5906 * given by the user.
5907 * Return value:
5908 * 0 on success, -EFAULT on failure.
5909 */
5910
5911static int s2io_ethtool_seeprom(struct net_device *dev,
5912 struct ethtool_eeprom *eeprom,
Joe Perchesd44570e2009-08-24 17:29:44 +00005913 u8 *data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005914{
5915 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005916 u64 valid = 0, data;
Wang Chen4cf16532008-11-12 23:38:14 -08005917 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005918
5919 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5920 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005921 "ETHTOOL_WRITE_EEPROM Err: "
5922 "Magic value is wrong, it is 0x%x should be 0x%x\n",
5923 (sp->pdev->vendor | (sp->pdev->device << 16)),
5924 eeprom->magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005925 return -EFAULT;
5926 }
5927
5928 while (len) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005929 data = (u32)data_buf[cnt] & 0x000000FF;
5930 if (data)
5931 valid = (u32)(data << 24);
5932 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07005933 valid = data;
5934
5935 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5936 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005937 "ETHTOOL_WRITE_EEPROM Err: "
5938 "Cannot write into the specified offset\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005939 return -EFAULT;
5940 }
5941 cnt++;
5942 len--;
5943 }
5944
5945 return 0;
5946}
5947
5948/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005949 * s2io_register_test - reads and writes into all clock domains.
5950 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005951 * s2io_nic structure.
5952 * @data : variable that returns the result of each of the test conducted b
5953 * by the driver.
5954 * Description:
5955 * Read and write into all clock domains. The NIC has 3 clock domains,
5956 * see that registers in all the three regions are accessible.
5957 * Return value:
5958 * 0 on success.
5959 */
5960
Joe Perchesd44570e2009-08-24 17:29:44 +00005961static int s2io_register_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005962{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005963 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005964 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005965 int fail = 0;
5966
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005967 val64 = readq(&bar0->pif_rd_swapper_fb);
5968 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005969 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005970 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005971 }
5972
5973 val64 = readq(&bar0->rmac_pause_cfg);
5974 if (val64 != 0xc000ffff00000000ULL) {
5975 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005976 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005977 }
5978
5979 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005980 if (sp->device_type == XFRAME_II_DEVICE)
5981 exp_val = 0x0404040404040404ULL;
5982 else
5983 exp_val = 0x0808080808080808ULL;
5984 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005985 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005986 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005987 }
5988
5989 val64 = readq(&bar0->xgxs_efifo_cfg);
5990 if (val64 != 0x000000001923141EULL) {
5991 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005992 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005993 }
5994
5995 val64 = 0x5A5A5A5A5A5A5A5AULL;
5996 writeq(val64, &bar0->xmsi_data);
5997 val64 = readq(&bar0->xmsi_data);
5998 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5999 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00006000 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006001 }
6002
6003 val64 = 0xA5A5A5A5A5A5A5A5ULL;
6004 writeq(val64, &bar0->xmsi_data);
6005 val64 = readq(&bar0->xmsi_data);
6006 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
6007 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00006008 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006009 }
6010
6011 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006012 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006013}
6014
6015/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006016 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006017 * @sp : private member of the device structure, which is a pointer to the
6018 * s2io_nic structure.
6019 * @data:variable that returns the result of each of the test conducted by
6020 * the driver.
6021 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006022 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07006023 * register.
6024 * Return value:
6025 * 0 on success.
6026 */
6027
Joe Perchesd44570e2009-08-24 17:29:44 +00006028static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006029{
6030 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006031 u64 ret_data, org_4F0, org_7F0;
6032 u8 saved_4F0 = 0, saved_7F0 = 0;
6033 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006034
6035 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006036 /* Note that SPI interface allows write access to all areas
6037 * of EEPROM. Hence doing all negative testing only for Xframe I.
6038 */
6039 if (sp->device_type == XFRAME_I_DEVICE)
6040 if (!write_eeprom(sp, 0, 0, 3))
6041 fail = 1;
6042
6043 /* Save current values at offsets 0x4F0 and 0x7F0 */
6044 if (!read_eeprom(sp, 0x4F0, &org_4F0))
6045 saved_4F0 = 1;
6046 if (!read_eeprom(sp, 0x7F0, &org_7F0))
6047 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006048
6049 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006050 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051 fail = 1;
6052 if (read_eeprom(sp, 0x4F0, &ret_data))
6053 fail = 1;
6054
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006055 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006056 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006057 "Data written %llx Data read %llx\n",
6058 dev->name, (unsigned long long)0x12345,
6059 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006060 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006061 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006062
6063 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006064 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006065
6066 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006067 if (sp->device_type == XFRAME_I_DEVICE)
6068 if (!write_eeprom(sp, 0x07C, 0, 3))
6069 fail = 1;
6070
6071 /* Test Write Request at offset 0x7f0 */
6072 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
6073 fail = 1;
6074 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006075 fail = 1;
6076
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006077 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006078 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006079 "Data written %llx Data read %llx\n",
6080 dev->name, (unsigned long long)0x12345,
6081 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006082 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006083 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006084
6085 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006086 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006087
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006088 if (sp->device_type == XFRAME_I_DEVICE) {
6089 /* Test Write Error at offset 0x80 */
6090 if (!write_eeprom(sp, 0x080, 0, 3))
6091 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006092
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006093 /* Test Write Error at offset 0xfc */
6094 if (!write_eeprom(sp, 0x0FC, 0, 3))
6095 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006096
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006097 /* Test Write Error at offset 0x100 */
6098 if (!write_eeprom(sp, 0x100, 0, 3))
6099 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006100
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006101 /* Test Write Error at offset 4ec */
6102 if (!write_eeprom(sp, 0x4EC, 0, 3))
6103 fail = 1;
6104 }
6105
6106 /* Restore values at offsets 0x4F0 and 0x7F0 */
6107 if (saved_4F0)
6108 write_eeprom(sp, 0x4F0, org_4F0, 3);
6109 if (saved_7F0)
6110 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006111
6112 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006113 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006114}
6115
6116/**
6117 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006118 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006119 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006120 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07006121 * the driver.
6122 * Description:
6123 * This invokes the MemBist test of the card. We give around
6124 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006125 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006126 * Return value:
6127 * 0 on success and -1 on failure.
6128 */
6129
Joe Perchesd44570e2009-08-24 17:29:44 +00006130static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006131{
6132 u8 bist = 0;
6133 int cnt = 0, ret = -1;
6134
6135 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6136 bist |= PCI_BIST_START;
6137 pci_write_config_word(sp->pdev, PCI_BIST, bist);
6138
6139 while (cnt < 20) {
6140 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6141 if (!(bist & PCI_BIST_START)) {
6142 *data = (bist & PCI_BIST_CODE_MASK);
6143 ret = 0;
6144 break;
6145 }
6146 msleep(100);
6147 cnt++;
6148 }
6149
6150 return ret;
6151}
6152
6153/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006154 * s2io-link_test - verifies the link state of the nic
6155 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006156 * s2io_nic structure.
6157 * @data: variable that returns the result of each of the test conducted by
6158 * the driver.
6159 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006160 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07006161 * argument 'data' appropriately.
6162 * Return value:
6163 * 0 on success.
6164 */
6165
Joe Perchesd44570e2009-08-24 17:29:44 +00006166static int s2io_link_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006167{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006168 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006169 u64 val64;
6170
6171 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00006172 if (!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006173 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04006174 else
6175 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006176
Ananda Rajub41477f2006-07-24 19:52:49 -04006177 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006178}
6179
6180/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006181 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
6182 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006183 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006184 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006185 * conducted by the driver.
6186 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006187 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07006188 * access to the RldRam chip on the NIC.
6189 * Return value:
6190 * 0 on success.
6191 */
6192
Joe Perchesd44570e2009-08-24 17:29:44 +00006193static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006194{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006195 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006196 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006197 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006198
6199 val64 = readq(&bar0->adapter_control);
6200 val64 &= ~ADAPTER_ECC_EN;
6201 writeq(val64, &bar0->adapter_control);
6202
6203 val64 = readq(&bar0->mc_rldram_test_ctrl);
6204 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006205 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006206
6207 val64 = readq(&bar0->mc_rldram_mrs);
6208 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
6209 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6210
6211 val64 |= MC_RLDRAM_MRS_ENABLE;
6212 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6213
6214 while (iteration < 2) {
6215 val64 = 0x55555555aaaa0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006216 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006217 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006218 writeq(val64, &bar0->mc_rldram_test_d0);
6219
6220 val64 = 0xaaaa5a5555550000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006221 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006222 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006223 writeq(val64, &bar0->mc_rldram_test_d1);
6224
6225 val64 = 0x55aaaaaaaa5a0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006226 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006227 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006228 writeq(val64, &bar0->mc_rldram_test_d2);
6229
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006230 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006231 writeq(val64, &bar0->mc_rldram_test_add);
6232
Joe Perchesd44570e2009-08-24 17:29:44 +00006233 val64 = MC_RLDRAM_TEST_MODE |
6234 MC_RLDRAM_TEST_WRITE |
6235 MC_RLDRAM_TEST_GO;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006236 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006237
6238 for (cnt = 0; cnt < 5; cnt++) {
6239 val64 = readq(&bar0->mc_rldram_test_ctrl);
6240 if (val64 & MC_RLDRAM_TEST_DONE)
6241 break;
6242 msleep(200);
6243 }
6244
6245 if (cnt == 5)
6246 break;
6247
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006248 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6249 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006250
6251 for (cnt = 0; cnt < 5; cnt++) {
6252 val64 = readq(&bar0->mc_rldram_test_ctrl);
6253 if (val64 & MC_RLDRAM_TEST_DONE)
6254 break;
6255 msleep(500);
6256 }
6257
6258 if (cnt == 5)
6259 break;
6260
6261 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006262 if (!(val64 & MC_RLDRAM_TEST_PASS))
6263 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006264
6265 iteration++;
6266 }
6267
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006268 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006269
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006270 /* Bring the adapter out of test mode */
6271 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6272
6273 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006274}
6275
6276/**
6277 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6278 * @sp : private member of the device structure, which is a pointer to the
6279 * s2io_nic structure.
6280 * @ethtest : pointer to a ethtool command specific structure that will be
6281 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006282 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006283 * conducted by the driver.
6284 * Description:
6285 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6286 * the health of the card.
6287 * Return value:
6288 * void
6289 */
6290
6291static void s2io_ethtool_test(struct net_device *dev,
6292 struct ethtool_test *ethtest,
Joe Perchesd44570e2009-08-24 17:29:44 +00006293 uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006294{
Wang Chen4cf16532008-11-12 23:38:14 -08006295 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006296 int orig_state = netif_running(sp->dev);
6297
6298 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6299 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006300 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006301 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006302
6303 if (s2io_register_test(sp, &data[0]))
6304 ethtest->flags |= ETH_TEST_FL_FAILED;
6305
6306 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006307
6308 if (s2io_rldram_test(sp, &data[3]))
6309 ethtest->flags |= ETH_TEST_FL_FAILED;
6310
6311 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006312
6313 if (s2io_eeprom_test(sp, &data[1]))
6314 ethtest->flags |= ETH_TEST_FL_FAILED;
6315
6316 if (s2io_bist_test(sp, &data[4]))
6317 ethtest->flags |= ETH_TEST_FL_FAILED;
6318
6319 if (orig_state)
6320 s2io_open(sp->dev);
6321
6322 data[2] = 0;
6323 } else {
6324 /* Online Tests. */
6325 if (!orig_state) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006326 DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006327 dev->name);
6328 data[0] = -1;
6329 data[1] = -1;
6330 data[2] = -1;
6331 data[3] = -1;
6332 data[4] = -1;
6333 }
6334
6335 if (s2io_link_test(sp, &data[2]))
6336 ethtest->flags |= ETH_TEST_FL_FAILED;
6337
6338 data[0] = 0;
6339 data[1] = 0;
6340 data[3] = 0;
6341 data[4] = 0;
6342 }
6343}
6344
6345static void s2io_get_ethtool_stats(struct net_device *dev,
6346 struct ethtool_stats *estats,
Joe Perchesd44570e2009-08-24 17:29:44 +00006347 u64 *tmp_stats)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006348{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006349 int i = 0, k;
Wang Chen4cf16532008-11-12 23:38:14 -08006350 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00006351 struct stat_block *stats = sp->mac_control.stats_info;
6352 struct swStat *swstats = &stats->sw_stat;
6353 struct xpakStat *xstats = &stats->xpak_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006354
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006355 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006356 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006357 (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 |
6358 le32_to_cpu(stats->tmac_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006359 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006360 (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
6361 le32_to_cpu(stats->tmac_data_octets);
6362 tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006363 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006364 (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 |
6365 le32_to_cpu(stats->tmac_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006366 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006367 (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 |
6368 le32_to_cpu(stats->tmac_bcst_frms);
6369 tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006370 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006371 (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 |
6372 le32_to_cpu(stats->tmac_ttl_octets);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006373 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006374 (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 |
6375 le32_to_cpu(stats->tmac_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006376 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006377 (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 |
6378 le32_to_cpu(stats->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006379 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006380 (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
6381 le32_to_cpu(stats->tmac_any_err_frms);
6382 tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets);
6383 tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006384 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006385 (u64)le32_to_cpu(stats->tmac_vld_ip_oflow) << 32 |
6386 le32_to_cpu(stats->tmac_vld_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006387 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006388 (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 |
6389 le32_to_cpu(stats->tmac_drop_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006390 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006391 (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 |
6392 le32_to_cpu(stats->tmac_icmp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006393 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006394 (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 |
6395 le32_to_cpu(stats->tmac_rst_tcp);
6396 tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp);
6397 tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 |
6398 le32_to_cpu(stats->tmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006399 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006400 (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
6401 le32_to_cpu(stats->rmac_vld_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006402 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006403 (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
6404 le32_to_cpu(stats->rmac_data_octets);
6405 tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms);
6406 tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006407 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006408 (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
6409 le32_to_cpu(stats->rmac_vld_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006410 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006411 (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 |
6412 le32_to_cpu(stats->rmac_vld_bcst_frms);
6413 tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms);
6414 tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms);
6415 tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms);
6416 tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms);
6417 tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006418 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006419 (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 |
6420 le32_to_cpu(stats->rmac_ttl_octets);
Joe Perchesd44570e2009-08-24 17:29:44 +00006421 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006422 (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32
6423 | le32_to_cpu(stats->rmac_accepted_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006424 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006425 (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow)
6426 << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006427 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006428 (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 |
6429 le32_to_cpu(stats->rmac_discarded_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006430 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006431 (u64)le32_to_cpu(stats->rmac_drop_events_oflow)
6432 << 32 | le32_to_cpu(stats->rmac_drop_events);
6433 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets);
6434 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006435 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006436 (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
6437 le32_to_cpu(stats->rmac_usized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006438 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006439 (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 |
6440 le32_to_cpu(stats->rmac_osized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006441 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006442 (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 |
6443 le32_to_cpu(stats->rmac_frag_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006444 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006445 (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 |
6446 le32_to_cpu(stats->rmac_jabber_frms);
6447 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms);
6448 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms);
6449 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms);
6450 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms);
6451 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms);
6452 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006453 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006454 (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 |
6455 le32_to_cpu(stats->rmac_ip);
6456 tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets);
6457 tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006458 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006459 (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 |
6460 le32_to_cpu(stats->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006461 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006462 (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 |
6463 le32_to_cpu(stats->rmac_icmp);
6464 tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006465 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006466 (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 |
6467 le32_to_cpu(stats->rmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006468 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006469 (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 |
6470 le32_to_cpu(stats->rmac_err_drp_udp);
6471 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym);
6472 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0);
6473 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1);
6474 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2);
6475 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3);
6476 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4);
6477 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5);
6478 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6);
6479 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7);
6480 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0);
6481 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1);
6482 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2);
6483 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3);
6484 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4);
6485 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5);
6486 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6);
6487 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006488 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006489 (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 |
6490 le32_to_cpu(stats->rmac_pause_cnt);
6491 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt);
6492 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006493 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006494 (u64)le32_to_cpu(stats->rmac_accepted_ip_oflow) << 32 |
6495 le32_to_cpu(stats->rmac_accepted_ip);
6496 tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp);
6497 tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt);
6498 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt);
6499 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt);
6500 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt);
6501 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt);
6502 tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt);
6503 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt);
6504 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt);
6505 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt);
6506 tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt);
6507 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt);
6508 tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt);
6509 tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt);
6510 tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt);
6511 tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt);
6512 tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt);
6513 tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt);
6514 tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006515
6516 /* Enhanced statistics exist only for Hercules */
Joe Perchesd44570e2009-08-24 17:29:44 +00006517 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006518 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006519 le64_to_cpu(stats->rmac_ttl_1519_4095_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006520 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006521 le64_to_cpu(stats->rmac_ttl_4096_8191_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006522 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006523 le64_to_cpu(stats->rmac_ttl_8192_max_frms);
6524 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms);
6525 tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms);
6526 tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms);
6527 tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms);
6528 tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms);
6529 tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard);
6530 tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard);
6531 tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard);
6532 tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard);
6533 tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard);
6534 tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard);
6535 tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard);
6536 tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006537 }
6538
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006539 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006540 tmp_stats[i++] = swstats->single_ecc_errs;
6541 tmp_stats[i++] = swstats->double_ecc_errs;
6542 tmp_stats[i++] = swstats->parity_err_cnt;
6543 tmp_stats[i++] = swstats->serious_err_cnt;
6544 tmp_stats[i++] = swstats->soft_reset_cnt;
6545 tmp_stats[i++] = swstats->fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006546 for (k = 0; k < MAX_RX_RINGS; k++)
Joe Perchesffb5df62009-08-24 17:29:47 +00006547 tmp_stats[i++] = swstats->ring_full_cnt[k];
6548 tmp_stats[i++] = xstats->alarm_transceiver_temp_high;
6549 tmp_stats[i++] = xstats->alarm_transceiver_temp_low;
6550 tmp_stats[i++] = xstats->alarm_laser_bias_current_high;
6551 tmp_stats[i++] = xstats->alarm_laser_bias_current_low;
6552 tmp_stats[i++] = xstats->alarm_laser_output_power_high;
6553 tmp_stats[i++] = xstats->alarm_laser_output_power_low;
6554 tmp_stats[i++] = xstats->warn_transceiver_temp_high;
6555 tmp_stats[i++] = xstats->warn_transceiver_temp_low;
6556 tmp_stats[i++] = xstats->warn_laser_bias_current_high;
6557 tmp_stats[i++] = xstats->warn_laser_bias_current_low;
6558 tmp_stats[i++] = xstats->warn_laser_output_power_high;
6559 tmp_stats[i++] = xstats->warn_laser_output_power_low;
6560 tmp_stats[i++] = swstats->clubbed_frms_cnt;
6561 tmp_stats[i++] = swstats->sending_both;
6562 tmp_stats[i++] = swstats->outof_sequence_pkts;
6563 tmp_stats[i++] = swstats->flush_max_pkts;
6564 if (swstats->num_aggregations) {
6565 u64 tmp = swstats->sum_avg_pkts_aggregated;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006566 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006567 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006568 * Since 64-bit divide does not work on all platforms,
6569 * do repeated subtraction.
6570 */
Joe Perchesffb5df62009-08-24 17:29:47 +00006571 while (tmp >= swstats->num_aggregations) {
6572 tmp -= swstats->num_aggregations;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006573 count++;
6574 }
6575 tmp_stats[i++] = count;
Joe Perchesd44570e2009-08-24 17:29:44 +00006576 } else
Ananda Rajubd1034f2006-04-21 19:20:22 -04006577 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006578 tmp_stats[i++] = swstats->mem_alloc_fail_cnt;
6579 tmp_stats[i++] = swstats->pci_map_fail_cnt;
6580 tmp_stats[i++] = swstats->watchdog_timer_cnt;
6581 tmp_stats[i++] = swstats->mem_allocated;
6582 tmp_stats[i++] = swstats->mem_freed;
6583 tmp_stats[i++] = swstats->link_up_cnt;
6584 tmp_stats[i++] = swstats->link_down_cnt;
6585 tmp_stats[i++] = swstats->link_up_time;
6586 tmp_stats[i++] = swstats->link_down_time;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006587
Joe Perchesffb5df62009-08-24 17:29:47 +00006588 tmp_stats[i++] = swstats->tx_buf_abort_cnt;
6589 tmp_stats[i++] = swstats->tx_desc_abort_cnt;
6590 tmp_stats[i++] = swstats->tx_parity_err_cnt;
6591 tmp_stats[i++] = swstats->tx_link_loss_cnt;
6592 tmp_stats[i++] = swstats->tx_list_proc_err_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006593
Joe Perchesffb5df62009-08-24 17:29:47 +00006594 tmp_stats[i++] = swstats->rx_parity_err_cnt;
6595 tmp_stats[i++] = swstats->rx_abort_cnt;
6596 tmp_stats[i++] = swstats->rx_parity_abort_cnt;
6597 tmp_stats[i++] = swstats->rx_rda_fail_cnt;
6598 tmp_stats[i++] = swstats->rx_unkn_prot_cnt;
6599 tmp_stats[i++] = swstats->rx_fcs_err_cnt;
6600 tmp_stats[i++] = swstats->rx_buf_size_err_cnt;
6601 tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt;
6602 tmp_stats[i++] = swstats->rx_unkn_err_cnt;
6603 tmp_stats[i++] = swstats->tda_err_cnt;
6604 tmp_stats[i++] = swstats->pfc_err_cnt;
6605 tmp_stats[i++] = swstats->pcc_err_cnt;
6606 tmp_stats[i++] = swstats->tti_err_cnt;
6607 tmp_stats[i++] = swstats->tpa_err_cnt;
6608 tmp_stats[i++] = swstats->sm_err_cnt;
6609 tmp_stats[i++] = swstats->lso_err_cnt;
6610 tmp_stats[i++] = swstats->mac_tmac_err_cnt;
6611 tmp_stats[i++] = swstats->mac_rmac_err_cnt;
6612 tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt;
6613 tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt;
6614 tmp_stats[i++] = swstats->rc_err_cnt;
6615 tmp_stats[i++] = swstats->prc_pcix_err_cnt;
6616 tmp_stats[i++] = swstats->rpa_err_cnt;
6617 tmp_stats[i++] = swstats->rda_err_cnt;
6618 tmp_stats[i++] = swstats->rti_err_cnt;
6619 tmp_stats[i++] = swstats->mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006620}
6621
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006622static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006623{
Joe Perchesd44570e2009-08-24 17:29:44 +00006624 return XENA_REG_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006625}
6626
6627
Joe Perchesd44570e2009-08-24 17:29:44 +00006628static u32 s2io_ethtool_get_rx_csum(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006629{
Wang Chen4cf16532008-11-12 23:38:14 -08006630 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006631
Joe Perchesd44570e2009-08-24 17:29:44 +00006632 return sp->rx_csum;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006633}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006634
6635static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006636{
Wang Chen4cf16532008-11-12 23:38:14 -08006637 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006638
6639 if (data)
6640 sp->rx_csum = 1;
6641 else
6642 sp->rx_csum = 0;
6643
6644 return 0;
6645}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006646
6647static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006648{
Joe Perchesd44570e2009-08-24 17:29:44 +00006649 return XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006650}
6651
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006652static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006653{
Wang Chen4cf16532008-11-12 23:38:14 -08006654 struct s2io_nic *sp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006655
6656 switch (sset) {
6657 case ETH_SS_TEST:
6658 return S2IO_TEST_LEN;
6659 case ETH_SS_STATS:
Joe Perchesd44570e2009-08-24 17:29:44 +00006660 switch (sp->device_type) {
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006661 case XFRAME_I_DEVICE:
6662 return XFRAME_I_STAT_LEN;
6663 case XFRAME_II_DEVICE:
6664 return XFRAME_II_STAT_LEN;
6665 default:
6666 return 0;
6667 }
6668 default:
6669 return -EOPNOTSUPP;
6670 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006671}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006672
6673static void s2io_ethtool_get_strings(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006674 u32 stringset, u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006675{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006676 int stat_size = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08006677 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006678
Linus Torvalds1da177e2005-04-16 15:20:36 -07006679 switch (stringset) {
6680 case ETH_SS_TEST:
6681 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6682 break;
6683 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006684 stat_size = sizeof(ethtool_xena_stats_keys);
Joe Perchesd44570e2009-08-24 17:29:44 +00006685 memcpy(data, &ethtool_xena_stats_keys, stat_size);
6686 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006687 memcpy(data + stat_size,
Joe Perchesd44570e2009-08-24 17:29:44 +00006688 &ethtool_enhanced_stats_keys,
6689 sizeof(ethtool_enhanced_stats_keys));
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006690 stat_size += sizeof(ethtool_enhanced_stats_keys);
6691 }
6692
6693 memcpy(data + stat_size, &ethtool_driver_stats_keys,
Joe Perchesd44570e2009-08-24 17:29:44 +00006694 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006695 }
6696}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006697
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006698static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006699{
6700 if (data)
6701 dev->features |= NETIF_F_IP_CSUM;
6702 else
6703 dev->features &= ~NETIF_F_IP_CSUM;
6704
6705 return 0;
6706}
6707
Ananda Raju75c30b12006-07-24 19:55:09 -04006708static u32 s2io_ethtool_op_get_tso(struct net_device *dev)
6709{
6710 return (dev->features & NETIF_F_TSO) != 0;
6711}
Jon Mason958de192010-06-24 18:45:10 +00006712
Ananda Raju75c30b12006-07-24 19:55:09 -04006713static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data)
6714{
6715 if (data)
6716 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
6717 else
6718 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
6719
6720 return 0;
6721}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006722
Jon Mason958de192010-06-24 18:45:10 +00006723static int s2io_ethtool_set_flags(struct net_device *dev, u32 data)
6724{
6725 struct s2io_nic *sp = netdev_priv(dev);
6726 int rc = 0;
6727 int changed = 0;
6728
6729 if (data & ~ETH_FLAG_LRO)
Ben Hutchings97d19352010-06-30 02:46:56 +00006730 return -EINVAL;
Jon Mason958de192010-06-24 18:45:10 +00006731
6732 if (data & ETH_FLAG_LRO) {
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00006733 if (!(dev->features & NETIF_F_LRO)) {
6734 dev->features |= NETIF_F_LRO;
6735 changed = 1;
6736 }
Jon Mason958de192010-06-24 18:45:10 +00006737 } else if (dev->features & NETIF_F_LRO) {
6738 dev->features &= ~NETIF_F_LRO;
6739 changed = 1;
6740 }
6741
6742 if (changed && netif_running(dev)) {
6743 s2io_stop_all_tx_queue(sp);
6744 s2io_card_down(sp);
Jon Mason958de192010-06-24 18:45:10 +00006745 rc = s2io_card_up(sp);
6746 if (rc)
6747 s2io_reset(sp);
6748 else
6749 s2io_start_all_tx_queue(sp);
6750 }
6751
6752 return rc;
6753}
6754
Jeff Garzik7282d492006-09-13 14:30:00 -04006755static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006756 .get_settings = s2io_ethtool_gset,
6757 .set_settings = s2io_ethtool_sset,
6758 .get_drvinfo = s2io_ethtool_gdrvinfo,
6759 .get_regs_len = s2io_ethtool_get_regs_len,
6760 .get_regs = s2io_ethtool_gregs,
6761 .get_link = ethtool_op_get_link,
6762 .get_eeprom_len = s2io_get_eeprom_len,
6763 .get_eeprom = s2io_ethtool_geeprom,
6764 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006765 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006766 .get_pauseparam = s2io_ethtool_getpause_data,
6767 .set_pauseparam = s2io_ethtool_setpause_data,
6768 .get_rx_csum = s2io_ethtool_get_rx_csum,
6769 .set_rx_csum = s2io_ethtool_set_rx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006770 .set_tx_csum = s2io_ethtool_op_set_tx_csum,
Jon Mason958de192010-06-24 18:45:10 +00006771 .set_flags = s2io_ethtool_set_flags,
6772 .get_flags = ethtool_op_get_flags,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006773 .set_sg = ethtool_op_set_sg,
Ananda Raju75c30b12006-07-24 19:55:09 -04006774 .get_tso = s2io_ethtool_op_get_tso,
6775 .set_tso = s2io_ethtool_op_set_tso,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05006776 .set_ufo = ethtool_op_set_ufo,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006777 .self_test = s2io_ethtool_test,
6778 .get_strings = s2io_ethtool_get_strings,
6779 .phys_id = s2io_ethtool_idnic,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006780 .get_ethtool_stats = s2io_get_ethtool_stats,
6781 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006782};
6783
6784/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006785 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006786 * @dev : Device pointer.
6787 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6788 * a proprietary structure used to pass information to the driver.
6789 * @cmd : This is used to distinguish between the different commands that
6790 * can be passed to the IOCTL functions.
6791 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006792 * Currently there are no special functionality supported in IOCTL, hence
6793 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006794 */
6795
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006796static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006797{
6798 return -EOPNOTSUPP;
6799}
6800
6801/**
6802 * s2io_change_mtu - entry point to change MTU size for the device.
6803 * @dev : device pointer.
6804 * @new_mtu : the new MTU size for the device.
6805 * Description: A driver entry point to change MTU size for the device.
6806 * Before changing the MTU the device must be stopped.
6807 * Return value:
6808 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6809 * file on failure.
6810 */
6811
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006812static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006813{
Wang Chen4cf16532008-11-12 23:38:14 -08006814 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006815 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006816
6817 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006818 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006819 return -EPERM;
6820 }
6821
Linus Torvalds1da177e2005-04-16 15:20:36 -07006822 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006823 if (netif_running(dev)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006824 s2io_stop_all_tx_queue(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006825 s2io_card_down(sp);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006826 ret = s2io_card_up(sp);
6827 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006828 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07006829 __func__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006830 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006831 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006832 s2io_wake_all_tx_queue(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006833 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006834 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006835 u64 val64 = new_mtu;
6836
6837 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6838 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006839
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006840 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006841}
6842
6843/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006844 * s2io_set_link - Set the LInk status
6845 * @data: long pointer to device private structue
6846 * Description: Sets the link status for the adapter
6847 */
6848
David Howellsc4028952006-11-22 14:57:56 +00006849static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006850{
Joe Perchesd44570e2009-08-24 17:29:44 +00006851 struct s2io_nic *nic = container_of(work, struct s2io_nic,
6852 set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006853 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006854 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006855 register u64 val64;
6856 u16 subid;
6857
Francois Romieu22747d62007-02-15 23:37:50 +01006858 rtnl_lock();
6859
6860 if (!netif_running(dev))
6861 goto out_unlock;
6862
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006863 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006864 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006865 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006866 }
6867
6868 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006869 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6870 /*
6871 * Allow a small delay for the NICs self initiated
6872 * cleanup to complete.
6873 */
6874 msleep(100);
6875 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006876
6877 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006878 if (LINK_IS_UP(val64)) {
6879 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6880 if (verify_xena_quiescence(nic)) {
6881 val64 = readq(&bar0->adapter_control);
6882 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006883 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006884 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
Joe Perchesd44570e2009-08-24 17:29:44 +00006885 nic->device_type, subid)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006886 val64 = readq(&bar0->gpio_control);
6887 val64 |= GPIO_CTRL_GPIO_0;
6888 writeq(val64, &bar0->gpio_control);
6889 val64 = readq(&bar0->gpio_control);
6890 } else {
6891 val64 |= ADAPTER_LED_ON;
6892 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006893 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00006894 nic->device_enabled_once = true;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006895 } else {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006896 DBG_PRINT(ERR_DBG,
6897 "%s: Error: device is not Quiescent\n",
6898 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006899 s2io_stop_all_tx_queue(nic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006900 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006901 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006902 val64 = readq(&bar0->adapter_control);
6903 val64 |= ADAPTER_LED_ON;
6904 writeq(val64, &bar0->adapter_control);
6905 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006906 } else {
6907 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6908 subid)) {
6909 val64 = readq(&bar0->gpio_control);
6910 val64 &= ~GPIO_CTRL_GPIO_0;
6911 writeq(val64, &bar0->gpio_control);
6912 val64 = readq(&bar0->gpio_control);
6913 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006914 /* turn off LED */
6915 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00006916 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006917 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006918 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006919 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006920 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006921
6922out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006923 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006924}
6925
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006926static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
Joe Perchesd44570e2009-08-24 17:29:44 +00006927 struct buffAdd *ba,
6928 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6929 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006930{
6931 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006932 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006933
6934 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006935 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006936 /* allocate skb */
6937 if (*skb) {
6938 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6939 /*
6940 * As Rx frame are not going to be processed,
6941 * using same mapped address for the Rxd
6942 * buffer pointer
6943 */
Veena Parat6d517a22007-07-23 02:20:51 -04006944 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006945 } else {
6946 *skb = dev_alloc_skb(size);
6947 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006948 DBG_PRINT(INFO_DBG,
6949 "%s: Out of memory to allocate %s\n",
6950 dev->name, "1 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006951 stats->mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006952 return -ENOMEM ;
6953 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006954 stats->mem_allocated += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006955 /* storing the mapped addr in a temp variable
6956 * such it will be used for next rxd whose
6957 * Host Control is NULL
6958 */
Veena Parat6d517a22007-07-23 02:20:51 -04006959 rxdp1->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006960 pci_map_single(sp->pdev, (*skb)->data,
6961 size - NET_IP_ALIGN,
6962 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006963 if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006964 goto memalloc_failed;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006965 rxdp->Host_Control = (unsigned long) (*skb);
6966 }
6967 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006968 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006969 /* Two buffer Mode */
6970 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006971 rxdp3->Buffer2_ptr = *temp2;
6972 rxdp3->Buffer0_ptr = *temp0;
6973 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006974 } else {
6975 *skb = dev_alloc_skb(size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006976 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006977 DBG_PRINT(INFO_DBG,
6978 "%s: Out of memory to allocate %s\n",
6979 dev->name,
6980 "2 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006981 stats->mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006982 return -ENOMEM;
6983 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006984 stats->mem_allocated += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006985 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006986 pci_map_single(sp->pdev, (*skb)->data,
6987 dev->mtu + 4,
6988 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006989 if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006990 goto memalloc_failed;
Veena Parat6d517a22007-07-23 02:20:51 -04006991 rxdp3->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006992 pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
6993 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006994 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006995 rxdp3->Buffer0_ptr)) {
6996 pci_unmap_single(sp->pdev,
6997 (dma_addr_t)rxdp3->Buffer2_ptr,
6998 dev->mtu + 4,
6999 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04007000 goto memalloc_failed;
7001 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007002 rxdp->Host_Control = (unsigned long) (*skb);
7003
7004 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04007005 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04007006 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Joe Perchesd44570e2009-08-24 17:29:44 +00007007 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07007008 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00007009 rxdp3->Buffer1_ptr)) {
7010 pci_unmap_single(sp->pdev,
7011 (dma_addr_t)rxdp3->Buffer0_ptr,
7012 BUF0_LEN, PCI_DMA_FROMDEVICE);
7013 pci_unmap_single(sp->pdev,
7014 (dma_addr_t)rxdp3->Buffer2_ptr,
7015 dev->mtu + 4,
7016 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04007017 goto memalloc_failed;
7018 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007019 }
7020 }
7021 return 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007022
7023memalloc_failed:
7024 stats->pci_map_fail_cnt++;
7025 stats->mem_freed += (*skb)->truesize;
7026 dev_kfree_skb(*skb);
7027 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007028}
Veena Parat491abf22007-07-23 02:37:14 -04007029
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007030static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
7031 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04007032{
7033 struct net_device *dev = sp->dev;
7034 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007035 rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007036 } else if (sp->rxd_mode == RXD_MODE_3B) {
7037 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
7038 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
Joe Perchesd44570e2009-08-24 17:29:44 +00007039 rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007040 }
7041}
7042
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007043static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04007044{
7045 int i, j, k, blk_cnt = 0, size;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007046 struct config_param *config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007047 struct mac_info *mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007048 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007049 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007050 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007051 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007052 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
7053
7054 /* Calculate the size based on ring mode */
7055 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
7056 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
7057 if (sp->rxd_mode == RXD_MODE_1)
7058 size += NET_IP_ALIGN;
7059 else if (sp->rxd_mode == RXD_MODE_3B)
7060 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007061
7062 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007063 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7064 struct ring_info *ring = &mac_control->rings[i];
7065
Joe Perchesd44570e2009-08-24 17:29:44 +00007066 blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007067
7068 for (j = 0; j < blk_cnt; j++) {
7069 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007070 rxdp = ring->rx_blocks[j].rxds[k].virt_addr;
7071 if (sp->rxd_mode == RXD_MODE_3B)
Joe Perches13d866a2009-08-24 17:29:41 +00007072 ba = &ring->ba[j][k];
Joe Perchesd44570e2009-08-24 17:29:44 +00007073 if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,
7074 (u64 *)&temp0_64,
7075 (u64 *)&temp1_64,
7076 (u64 *)&temp2_64,
7077 size) == -ENOMEM) {
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05007078 return 0;
7079 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007080
7081 set_rxd_buffer_size(sp, rxdp, size);
7082 wmb();
7083 /* flip the Ownership bit to Hardware */
7084 rxdp->Control_1 |= RXD_OWN_XENA;
7085 }
7086 }
7087 }
7088 return 0;
7089
7090}
7091
Joe Perchesd44570e2009-08-24 17:29:44 +00007092static int s2io_add_isr(struct s2io_nic *sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007093{
7094 int ret = 0;
7095 struct net_device *dev = sp->dev;
7096 int err = 0;
7097
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007098 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007099 ret = s2io_enable_msi_x(sp);
7100 if (ret) {
7101 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007102 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007103 }
7104
Joe Perchesd44570e2009-08-24 17:29:44 +00007105 /*
7106 * Store the values of the MSIX table in
7107 * the struct s2io_nic structure
7108 */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007109 store_xmsi_data(sp);
7110
7111 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007112 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007113 int i, msix_rx_cnt = 0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007114
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007115 for (i = 0; i < sp->num_entries; i++) {
7116 if (sp->s2io_entries[i].in_use == MSIX_FLG) {
7117 if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007118 MSIX_RING_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007119 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
7120 dev->name, i);
7121 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007122 s2io_msix_ring_handle,
7123 0,
7124 sp->desc[i],
7125 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007126 } else if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007127 MSIX_ALARM_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007128 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
Joe Perchesd44570e2009-08-24 17:29:44 +00007129 dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007130 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007131 s2io_msix_fifo_handle,
7132 0,
7133 sp->desc[i],
7134 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007135
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007136 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007137 /* if either data or addr is zero print it. */
7138 if (!(sp->msix_info[i].addr &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007139 sp->msix_info[i].data)) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007140 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007141 "%s @Addr:0x%llx Data:0x%llx\n",
7142 sp->desc[i],
7143 (unsigned long long)
7144 sp->msix_info[i].addr,
7145 (unsigned long long)
7146 ntohl(sp->msix_info[i].data));
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007147 } else
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007148 msix_rx_cnt++;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007149 if (err) {
7150 remove_msix_isr(sp);
7151
7152 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007153 "%s:MSI-X-%d registration "
7154 "failed\n", dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007155
7156 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007157 "%s: Defaulting to INTA\n",
7158 dev->name);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007159 sp->config.intr_type = INTA;
7160 break;
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007161 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007162 sp->s2io_entries[i].in_use =
7163 MSIX_REGISTERED_SUCCESS;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007164 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007165 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007166 if (!err) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00007167 pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt);
Joe Perches9e39f7c2009-08-25 08:52:00 +00007168 DBG_PRINT(INFO_DBG,
7169 "MSI-X-TX entries enabled through alarm vector\n");
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007170 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007171 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007172 if (sp->config.intr_type == INTA) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007173 err = request_irq((int)sp->pdev->irq, s2io_isr, IRQF_SHARED,
7174 sp->name, dev);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007175 if (err) {
7176 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
7177 dev->name);
7178 return -1;
7179 }
7180 }
7181 return 0;
7182}
Joe Perchesd44570e2009-08-24 17:29:44 +00007183
7184static void s2io_rem_isr(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007185{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007186 if (sp->config.intr_type == MSI_X)
7187 remove_msix_isr(sp);
7188 else
7189 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007190}
7191
Joe Perchesd44570e2009-08-24 17:29:44 +00007192static void do_s2io_card_down(struct s2io_nic *sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007193{
7194 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007195 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007196 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007197 struct config_param *config;
7198 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007199
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007200 if (!is_s2io_card_up(sp))
7201 return;
7202
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007203 del_timer_sync(&sp->alarm_timer);
7204 /* If s2io_set_link task is executing, wait till it completes. */
Joe Perchesd44570e2009-08-24 17:29:44 +00007205 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state)))
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007206 msleep(50);
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007207 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007208
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007209 /* Disable napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007210 if (sp->config.napi) {
7211 int off = 0;
7212 if (config->intr_type == MSI_X) {
7213 for (; off < sp->config.rx_ring_num; off++)
7214 napi_disable(&sp->mac_control.rings[off].napi);
Joe Perchesd44570e2009-08-24 17:29:44 +00007215 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007216 else
7217 napi_disable(&sp->napi);
7218 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007219
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007220 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007221 if (do_io)
7222 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007223
7224 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007225
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007226 /* stop the tx queue, indicate link down */
7227 s2io_link(sp, LINK_DOWN);
7228
Linus Torvalds1da177e2005-04-16 15:20:36 -07007229 /* Check if the device is Quiescent and then Reset the NIC */
Joe Perchesd44570e2009-08-24 17:29:44 +00007230 while (do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007231 /* As per the HW requirement we need to replenish the
7232 * receive buffer to avoid the ring bump. Since there is
7233 * no intention of processing the Rx frame at this pointwe are
7234 * just settting the ownership bit of rxd in Each Rx
7235 * ring to HW and set the appropriate buffer size
7236 * based on the ring mode
7237 */
7238 rxd_owner_bit_reset(sp);
7239
Linus Torvalds1da177e2005-04-16 15:20:36 -07007240 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007241 if (verify_xena_quiescence(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007242 if (verify_pcc_quiescent(sp, sp->device_enabled_once))
7243 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007244 }
7245
7246 msleep(50);
7247 cnt++;
7248 if (cnt == 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007249 DBG_PRINT(ERR_DBG, "Device not Quiescent - "
7250 "adapter status reads 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007251 (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007252 break;
7253 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007254 }
7255 if (do_io)
7256 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007257
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007258 /* Free all Tx buffers */
7259 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007260
7261 /* Free all Rx buffers */
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007262 free_rx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007263
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007264 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007265}
7266
Joe Perchesd44570e2009-08-24 17:29:44 +00007267static void s2io_card_down(struct s2io_nic *sp)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007268{
7269 do_s2io_card_down(sp, 1);
7270}
7271
Joe Perchesd44570e2009-08-24 17:29:44 +00007272static int s2io_card_up(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007273{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007274 int i, ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007275 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007276 struct mac_info *mac_control;
Joe Perchesd44570e2009-08-24 17:29:44 +00007277 struct net_device *dev = (struct net_device *)sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007278 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007279
7280 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007281 ret = init_nic(sp);
7282 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007283 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7284 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007285 if (ret != -EIO)
7286 s2io_reset(sp);
7287 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007288 }
7289
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007290 /*
7291 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007292 * Rx ring and initializing buffers into 30 Rx blocks
7293 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007294 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007295 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007296
7297 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007298 struct ring_info *ring = &mac_control->rings[i];
7299
7300 ring->mtu = dev->mtu;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007301 ring->lro = !!(dev->features & NETIF_F_LRO);
Joe Perches13d866a2009-08-24 17:29:41 +00007302 ret = fill_rx_buffers(sp, ring, 1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007303 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007304 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7305 dev->name);
7306 s2io_reset(sp);
7307 free_rx_buffers(sp);
7308 return -ENOMEM;
7309 }
7310 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
Joe Perches13d866a2009-08-24 17:29:41 +00007311 ring->rx_bufs_left);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007312 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007313
7314 /* Initialise napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007315 if (config->napi) {
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007316 if (config->intr_type == MSI_X) {
7317 for (i = 0; i < sp->config.rx_ring_num; i++)
7318 napi_enable(&sp->mac_control.rings[i].napi);
7319 } else {
7320 napi_enable(&sp->napi);
7321 }
7322 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007323
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007324 /* Maintain the state prior to the open */
7325 if (sp->promisc_flg)
7326 sp->promisc_flg = 0;
7327 if (sp->m_cast_flg) {
7328 sp->m_cast_flg = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007329 sp->all_multi_pos = 0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007330 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007331
7332 /* Setting its receive mode */
7333 s2io_set_multicast(dev);
7334
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007335 if (dev->features & NETIF_F_LRO) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007336 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007337 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
Joe Perchesd44570e2009-08-24 17:29:44 +00007338 /* Check if we can use (if specified) user provided value */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007339 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7340 sp->lro_max_aggr_per_sess = lro_max_pkts;
7341 }
7342
Linus Torvalds1da177e2005-04-16 15:20:36 -07007343 /* Enable Rx Traffic and interrupts on the NIC */
7344 if (start_nic(sp)) {
7345 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007346 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007347 free_rx_buffers(sp);
7348 return -ENODEV;
7349 }
7350
7351 /* Add interrupt service routine */
7352 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007353 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007354 s2io_rem_isr(sp);
7355 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007356 free_rx_buffers(sp);
7357 return -ENODEV;
7358 }
7359
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007360 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7361
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007362 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
7363
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007364 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007365 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007366 if (sp->config.intr_type != INTA) {
7367 interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
7368 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7369 } else {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007370 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007371 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007372 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7373 }
7374
Linus Torvalds1da177e2005-04-16 15:20:36 -07007375 return 0;
7376}
7377
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007378/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007379 * s2io_restart_nic - Resets the NIC.
7380 * @data : long pointer to the device private structure
7381 * Description:
7382 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007383 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007384 * the run time of the watch dog routine which is run holding a
7385 * spin lock.
7386 */
7387
David Howellsc4028952006-11-22 14:57:56 +00007388static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007389{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007390 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007391 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007392
Francois Romieu22747d62007-02-15 23:37:50 +01007393 rtnl_lock();
7394
7395 if (!netif_running(dev))
7396 goto out_unlock;
7397
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007398 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007399 if (s2io_card_up(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007400 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007401 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007402 s2io_wake_all_tx_queue(sp);
Joe Perchesd44570e2009-08-24 17:29:44 +00007403 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007404out_unlock:
7405 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007406}
7407
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007408/**
7409 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007410 * @dev : Pointer to net device structure
7411 * Description:
7412 * This function is triggered if the Tx Queue is stopped
7413 * for a pre-defined amount of time when the Interface is still up.
7414 * If the Interface is jammed in such a situation, the hardware is
7415 * reset (by s2io_close) and restarted again (by s2io_open) to
7416 * overcome any problem that might have been caused in the hardware.
7417 * Return value:
7418 * void
7419 */
7420
7421static void s2io_tx_watchdog(struct net_device *dev)
7422{
Wang Chen4cf16532008-11-12 23:38:14 -08007423 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007424 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007425
7426 if (netif_carrier_ok(dev)) {
Joe Perchesffb5df62009-08-24 17:29:47 +00007427 swstats->watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007428 schedule_work(&sp->rst_timer_task);
Joe Perchesffb5df62009-08-24 17:29:47 +00007429 swstats->soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007430 }
7431}
7432
7433/**
7434 * rx_osm_handler - To perform some OS related operations on SKB.
7435 * @sp: private member of the device structure,pointer to s2io_nic structure.
7436 * @skb : the socket buffer pointer.
7437 * @len : length of the packet
7438 * @cksum : FCS checksum of the frame.
7439 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007440 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007441 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007442 * some OS related operations on the SKB before passing it to the upper
7443 * layers. It mainly checks if the checksum is OK, if so adds it to the
7444 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7445 * to the upper layer. If the checksum is wrong, it increments the Rx
7446 * packet error count, frees the SKB and returns error.
7447 * Return value:
7448 * SUCCESS on success and -1 on failure.
7449 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007450static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007451{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007452 struct s2io_nic *sp = ring_data->nic;
Joe Perchesd44570e2009-08-24 17:29:44 +00007453 struct net_device *dev = (struct net_device *)ring_data->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007454 struct sk_buff *skb = (struct sk_buff *)
Joe Perchesd44570e2009-08-24 17:29:44 +00007455 ((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007456 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007457 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007458 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ingo Molnar2e6a6842008-11-25 16:47:35 -08007459 struct lro *uninitialized_var(lro);
Olaf Heringf9046eb2007-06-19 22:41:10 +02007460 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00007461 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007462
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007463 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007464
Ananda Raju863c11a2006-04-21 19:03:13 -04007465 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007466 /* Check for parity error */
Joe Perchesd44570e2009-08-24 17:29:44 +00007467 if (err & 0x1)
Joe Perchesffb5df62009-08-24 17:29:47 +00007468 swstats->parity_err_cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007469
Olaf Heringf9046eb2007-06-19 22:41:10 +02007470 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00007471 switch (err_mask) {
7472 case 1:
Joe Perchesffb5df62009-08-24 17:29:47 +00007473 swstats->rx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007474 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007475
Joe Perchesd44570e2009-08-24 17:29:44 +00007476 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00007477 swstats->rx_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007478 break;
7479
Joe Perchesd44570e2009-08-24 17:29:44 +00007480 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00007481 swstats->rx_parity_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007482 break;
7483
Joe Perchesd44570e2009-08-24 17:29:44 +00007484 case 4:
Joe Perchesffb5df62009-08-24 17:29:47 +00007485 swstats->rx_rda_fail_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007486 break;
7487
Joe Perchesd44570e2009-08-24 17:29:44 +00007488 case 5:
Joe Perchesffb5df62009-08-24 17:29:47 +00007489 swstats->rx_unkn_prot_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007490 break;
7491
Joe Perchesd44570e2009-08-24 17:29:44 +00007492 case 6:
Joe Perchesffb5df62009-08-24 17:29:47 +00007493 swstats->rx_fcs_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007494 break;
7495
Joe Perchesd44570e2009-08-24 17:29:44 +00007496 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00007497 swstats->rx_buf_size_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007498 break;
7499
Joe Perchesd44570e2009-08-24 17:29:44 +00007500 case 8:
Joe Perchesffb5df62009-08-24 17:29:47 +00007501 swstats->rx_rxd_corrupt_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007502 break;
7503
Joe Perchesd44570e2009-08-24 17:29:44 +00007504 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00007505 swstats->rx_unkn_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007506 break;
7507 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007508 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00007509 * Drop the packet if bad transfer code. Exception being
7510 * 0x5, which could be due to unsupported IPv6 extension header.
7511 * In this case, we let stack handle the packet.
7512 * Note that in this case, since checksum will be incorrect,
7513 * stack will validate the same.
7514 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007515 if (err_mask != 0x5) {
7516 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007517 dev->name, err_mask);
Breno Leitaodc56e6342008-07-22 16:27:20 -03007518 dev->stats.rx_crc_errors++;
Joe Perchesffb5df62009-08-24 17:29:47 +00007519 swstats->mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007520 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007521 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007522 ring_data->rx_bufs_left -= 1;
Ananda Raju863c11a2006-04-21 19:03:13 -04007523 rxdp->Host_Control = 0;
7524 return 0;
7525 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007526 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007527
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007528 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007529 if (sp->rxd_mode == RXD_MODE_1) {
7530 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007531
Ananda Rajuda6971d2005-10-31 16:55:31 -05007532 skb_put(skb, len);
Veena Parat6d517a22007-07-23 02:20:51 -04007533 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007534 int get_block = ring_data->rx_curr_get_info.block_index;
7535 int get_off = ring_data->rx_curr_get_info.offset;
7536 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7537 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7538 unsigned char *buff = skb_push(skb, buf0_len);
7539
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007540 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05007541 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007542 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007543 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007544
Joe Perchesd44570e2009-08-24 17:29:44 +00007545 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
7546 ((!ring_data->lro) ||
7547 (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007548 (sp->rx_csum)) {
7549 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7550 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7551 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7552 /*
7553 * NIC verifies if the Checksum of the received
7554 * frame is Ok or not and accordingly returns
7555 * a flag in the RxD.
7556 */
7557 skb->ip_summed = CHECKSUM_UNNECESSARY;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007558 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007559 u32 tcp_len;
7560 u8 *tcp;
7561 int ret = 0;
7562
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007563 ret = s2io_club_tcp_session(ring_data,
Joe Perchesd44570e2009-08-24 17:29:44 +00007564 skb->data, &tcp,
7565 &tcp_len, &lro,
7566 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007567 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007568 case 3: /* Begin anew */
7569 lro->parent = skb;
7570 goto aggregate;
7571 case 1: /* Aggregate */
7572 lro_append_pkt(sp, lro, skb, tcp_len);
7573 goto aggregate;
7574 case 4: /* Flush session */
7575 lro_append_pkt(sp, lro, skb, tcp_len);
7576 queue_rx_frame(lro->parent,
7577 lro->vlan_tag);
7578 clear_lro_session(lro);
Joe Perchesffb5df62009-08-24 17:29:47 +00007579 swstats->flush_max_pkts++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007580 goto aggregate;
7581 case 2: /* Flush both */
7582 lro->parent->data_len = lro->frags_len;
Joe Perchesffb5df62009-08-24 17:29:47 +00007583 swstats->sending_both++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007584 queue_rx_frame(lro->parent,
7585 lro->vlan_tag);
7586 clear_lro_session(lro);
7587 goto send_up;
7588 case 0: /* sessions exceeded */
7589 case -1: /* non-TCP or not L2 aggregatable */
7590 case 5: /*
7591 * First pkt in session not
7592 * L3/L4 aggregatable
7593 */
7594 break;
7595 default:
7596 DBG_PRINT(ERR_DBG,
7597 "%s: Samadhana!!\n",
7598 __func__);
7599 BUG();
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007600 }
7601 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007602 } else {
7603 /*
7604 * Packet with erroneous checksum, let the
7605 * upper layers deal with it.
7606 */
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007607 skb_checksum_none_assert(skb);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007608 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007609 } else
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007610 skb_checksum_none_assert(skb);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007611
Joe Perchesffb5df62009-08-24 17:29:47 +00007612 swstats->mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007613send_up:
David S. Miller0c8dfc82009-01-27 16:22:32 -08007614 skb_record_rx_queue(skb, ring_no);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007615 queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007616aggregate:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007617 sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007618 return SUCCESS;
7619}
7620
7621/**
7622 * s2io_link - stops/starts the Tx queue.
7623 * @sp : private member of the device structure, which is a pointer to the
7624 * s2io_nic structure.
7625 * @link : inidicates whether link is UP/DOWN.
7626 * Description:
7627 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007628 * status of the NIC is is down or up. This is called by the Alarm
7629 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007630 * Return value:
7631 * void.
7632 */
7633
Joe Perchesd44570e2009-08-24 17:29:44 +00007634static void s2io_link(struct s2io_nic *sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007635{
Joe Perchesd44570e2009-08-24 17:29:44 +00007636 struct net_device *dev = (struct net_device *)sp->dev;
Joe Perchesffb5df62009-08-24 17:29:47 +00007637 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007638
7639 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007640 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007641 if (link == LINK_DOWN) {
7642 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007643 s2io_stop_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007644 netif_carrier_off(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007645 if (swstats->link_up_cnt)
7646 swstats->link_up_time =
7647 jiffies - sp->start_time;
7648 swstats->link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007649 } else {
7650 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Joe Perchesffb5df62009-08-24 17:29:47 +00007651 if (swstats->link_down_cnt)
7652 swstats->link_down_time =
Joe Perchesd44570e2009-08-24 17:29:44 +00007653 jiffies - sp->start_time;
Joe Perchesffb5df62009-08-24 17:29:47 +00007654 swstats->link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007655 netif_carrier_on(dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007656 s2io_wake_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007657 }
7658 }
7659 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007660 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007661}
7662
7663/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007664 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7665 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007666 * s2io_nic structure.
7667 * Description:
7668 * This function initializes a few of the PCI and PCI-X configuration registers
7669 * with recommended values.
7670 * Return value:
7671 * void
7672 */
7673
Joe Perchesd44570e2009-08-24 17:29:44 +00007674static void s2io_init_pci(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007675{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007676 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007677
7678 /* Enable Data Parity Error Recovery in PCI-X command register. */
7679 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007680 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007681 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007682 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007683 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007684 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007685
7686 /* Set the PErr Response bit in PCI command register. */
7687 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7688 pci_write_config_word(sp->pdev, PCI_COMMAND,
7689 (pci_cmd | PCI_COMMAND_PARITY));
7690 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007691}
7692
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007693static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type,
Joe Perchesd44570e2009-08-24 17:29:44 +00007694 u8 *dev_multiq)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007695{
Jon Mason1853e2e2010-12-10 15:40:01 +00007696 int i;
7697
Joe Perchesd44570e2009-08-24 17:29:44 +00007698 if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007699 DBG_PRINT(ERR_DBG, "Requested number of tx fifos "
Joe Perchesd44570e2009-08-24 17:29:44 +00007700 "(%d) not supported\n", tx_fifo_num);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007701
7702 if (tx_fifo_num < 1)
7703 tx_fifo_num = 1;
7704 else
7705 tx_fifo_num = MAX_TX_FIFOS;
7706
Joe Perches9e39f7c2009-08-25 08:52:00 +00007707 DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007708 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007709
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007710 if (multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007711 *dev_multiq = multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007712
7713 if (tx_steering_type && (1 == tx_fifo_num)) {
7714 if (tx_steering_type != TX_DEFAULT_STEERING)
7715 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007716 "Tx steering is not supported with "
Joe Perchesd44570e2009-08-24 17:29:44 +00007717 "one fifo. Disabling Tx steering.\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007718 tx_steering_type = NO_STEERING;
7719 }
7720
7721 if ((tx_steering_type < NO_STEERING) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007722 (tx_steering_type > TX_DEFAULT_STEERING)) {
7723 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007724 "Requested transmit steering not supported\n");
7725 DBG_PRINT(ERR_DBG, "Disabling transmit steering\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007726 tx_steering_type = NO_STEERING;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007727 }
7728
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007729 if (rx_ring_num > MAX_RX_RINGS) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007730 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007731 "Requested number of rx rings not supported\n");
7732 DBG_PRINT(ERR_DBG, "Default to %d rx rings\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007733 MAX_RX_RINGS);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007734 rx_ring_num = MAX_RX_RINGS;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007735 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007736
Veena Parateccb8622007-07-23 02:23:54 -04007737 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007738 DBG_PRINT(ERR_DBG, "Wrong intr_type requested. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007739 "Defaulting to INTA\n");
7740 *dev_intr_type = INTA;
7741 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007742
Ananda Raju9dc737a2006-04-21 19:05:41 -04007743 if ((*dev_intr_type == MSI_X) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007744 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7745 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007746 DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. "
Joe Perchesd44570e2009-08-24 17:29:44 +00007747 "Defaulting to INTA\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007748 *dev_intr_type = INTA;
7749 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007750
Veena Parat6d517a22007-07-23 02:20:51 -04007751 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007752 DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n");
7753 DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007754 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007755 }
Jon Mason1853e2e2010-12-10 15:40:01 +00007756
7757 for (i = 0; i < MAX_RX_RINGS; i++)
7758 if (rx_ring_sz[i] > MAX_RX_BLOCKS_PER_RING) {
7759 DBG_PRINT(ERR_DBG, "Requested rx ring size not "
7760 "supported\nDefaulting to %d\n",
7761 MAX_RX_BLOCKS_PER_RING);
7762 rx_ring_sz[i] = MAX_RX_BLOCKS_PER_RING;
7763 }
7764
Ananda Raju9dc737a2006-04-21 19:05:41 -04007765 return SUCCESS;
7766}
7767
Linus Torvalds1da177e2005-04-16 15:20:36 -07007768/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007769 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7770 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007771 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007772 * Description: The function configures the receive steering to
7773 * desired receive ring.
7774 * Return Value: SUCCESS on success and
7775 * '-1' on failure (endian settings incorrect).
7776 */
7777static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7778{
7779 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7780 register u64 val64 = 0;
7781
7782 if (ds_codepoint > 63)
7783 return FAILURE;
7784
7785 val64 = RTS_DS_MEM_DATA(ring);
7786 writeq(val64, &bar0->rts_ds_mem_data);
7787
7788 val64 = RTS_DS_MEM_CTRL_WE |
7789 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7790 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7791
7792 writeq(val64, &bar0->rts_ds_mem_ctrl);
7793
7794 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
Joe Perchesd44570e2009-08-24 17:29:44 +00007795 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7796 S2IO_BIT_RESET);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007797}
7798
Stephen Hemminger04025092008-11-21 17:28:55 -08007799static const struct net_device_ops s2io_netdev_ops = {
7800 .ndo_open = s2io_open,
7801 .ndo_stop = s2io_close,
7802 .ndo_get_stats = s2io_get_stats,
7803 .ndo_start_xmit = s2io_xmit,
7804 .ndo_validate_addr = eth_validate_addr,
7805 .ndo_set_multicast_list = s2io_set_multicast,
7806 .ndo_do_ioctl = s2io_ioctl,
7807 .ndo_set_mac_address = s2io_set_mac_addr,
7808 .ndo_change_mtu = s2io_change_mtu,
7809 .ndo_vlan_rx_register = s2io_vlan_rx_register,
7810 .ndo_vlan_rx_kill_vid = s2io_vlan_rx_kill_vid,
7811 .ndo_tx_timeout = s2io_tx_watchdog,
7812#ifdef CONFIG_NET_POLL_CONTROLLER
7813 .ndo_poll_controller = s2io_netpoll,
7814#endif
7815};
7816
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007817/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007818 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007819 * @pdev : structure containing the PCI related information of the device.
7820 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7821 * Description:
7822 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007823 * All OS related initialization including memory and device structure and
7824 * initlaization of the device private variable is done. Also the swapper
7825 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007826 * registers of the device.
7827 * Return value:
7828 * returns 0 on success and negative on failure.
7829 */
7830
7831static int __devinit
7832s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7833{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007834 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007835 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007836 int i, j, ret;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007837 int dma_flag = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007838 u32 mac_up, mac_down;
7839 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007840 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007841 u16 subid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007842 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007843 struct mac_info *mac_control;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007844 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007845 u8 dev_intr_type = intr_type;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007846 u8 dev_multiq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007847
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007848 ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq);
7849 if (ret)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007850 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007851
Joe Perchesd44570e2009-08-24 17:29:44 +00007852 ret = pci_enable_device(pdev);
7853 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007854 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007855 "%s: pci_enable_device failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007856 return ret;
7857 }
7858
Yang Hongyang6a355282009-04-06 19:01:13 -07007859 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007860 DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007861 dma_flag = true;
Joe Perchesd44570e2009-08-24 17:29:44 +00007862 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007863 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007864 "Unable to obtain 64bit DMA "
7865 "for consistent allocations\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07007866 pci_disable_device(pdev);
7867 return -ENOMEM;
7868 }
Yang Hongyang284901a2009-04-06 19:01:15 -07007869 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007870 DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007871 } else {
7872 pci_disable_device(pdev);
7873 return -ENOMEM;
7874 }
Joe Perchesd44570e2009-08-24 17:29:44 +00007875 ret = pci_request_regions(pdev, s2io_driver_name);
7876 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007877 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007878 __func__, ret);
Veena Parateccb8622007-07-23 02:23:54 -04007879 pci_disable_device(pdev);
7880 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007881 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007882 if (dev_multiq)
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007883 dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007884 else
David S. Millerb19fa1f2008-07-08 23:14:24 -07007885 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007886 if (dev == NULL) {
7887 DBG_PRINT(ERR_DBG, "Device allocation failed\n");
7888 pci_disable_device(pdev);
7889 pci_release_regions(pdev);
7890 return -ENODEV;
7891 }
7892
7893 pci_set_master(pdev);
7894 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007895 SET_NETDEV_DEV(dev, &pdev->dev);
7896
7897 /* Private member variable initialized to s2io NIC structure */
Wang Chen4cf16532008-11-12 23:38:14 -08007898 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007899 sp->dev = dev;
7900 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007901 sp->high_dma_flag = dma_flag;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007902 sp->device_enabled_once = false;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007903 if (rx_ring_mode == 1)
7904 sp->rxd_mode = RXD_MODE_1;
7905 if (rx_ring_mode == 2)
7906 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007907
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007908 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007909
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007910 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007911 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007912 sp->device_type = XFRAME_II_DEVICE;
7913 else
7914 sp->device_type = XFRAME_I_DEVICE;
7915
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007916
Linus Torvalds1da177e2005-04-16 15:20:36 -07007917 /* Initialize some PCI/PCI-X fields of the NIC. */
7918 s2io_init_pci(sp);
7919
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007920 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007921 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007922 * Most of these parameters can be specified by the user during
7923 * module insertion as they are module loadable parameters. If
7924 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007925 * are initialized with default values.
7926 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007927 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007928 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007929
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007930 config->napi = napi;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007931 config->tx_steering_type = tx_steering_type;
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007932
Linus Torvalds1da177e2005-04-16 15:20:36 -07007933 /* Tx side parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007934 if (config->tx_steering_type == TX_PRIORITY_STEERING)
7935 config->tx_fifo_num = MAX_TX_FIFOS;
7936 else
7937 config->tx_fifo_num = tx_fifo_num;
7938
7939 /* Initialize the fifos used for tx steering */
7940 if (config->tx_fifo_num < 5) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007941 if (config->tx_fifo_num == 1)
7942 sp->total_tcp_fifos = 1;
7943 else
7944 sp->total_tcp_fifos = config->tx_fifo_num - 1;
7945 sp->udp_fifo_idx = config->tx_fifo_num - 1;
7946 sp->total_udp_fifos = 1;
7947 sp->other_fifo_idx = sp->total_tcp_fifos - 1;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007948 } else {
7949 sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM -
Joe Perchesd44570e2009-08-24 17:29:44 +00007950 FIFO_OTHER_MAX_NUM);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007951 sp->udp_fifo_idx = sp->total_tcp_fifos;
7952 sp->total_udp_fifos = FIFO_UDP_MAX_NUM;
7953 sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM;
7954 }
7955
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007956 config->multiq = dev_multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007957 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007958 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7959
7960 tx_cfg->fifo_len = tx_fifo_len[i];
7961 tx_cfg->fifo_priority = i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007962 }
7963
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007964 /* mapping the QoS priority to the configured fifos */
7965 for (i = 0; i < MAX_TX_FIFOS; i++)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007966 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007967
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007968 /* map the hashing selector table to the configured fifos */
7969 for (i = 0; i < config->tx_fifo_num; i++)
7970 sp->fifo_selector[i] = fifo_selector[i];
7971
7972
Linus Torvalds1da177e2005-04-16 15:20:36 -07007973 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7974 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007975 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7976
7977 tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7978 if (tx_cfg->fifo_len < 65) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007979 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7980 break;
7981 }
7982 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007983 /* + 2 because one Txd for skb->data and one Txd for UFO */
7984 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007985
7986 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007987 config->rx_ring_num = rx_ring_num;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007988 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007989 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7990 struct ring_info *ring = &mac_control->rings[i];
7991
7992 rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1);
7993 rx_cfg->ring_priority = i;
7994 ring->rx_bufs_left = 0;
7995 ring->rxd_mode = sp->rxd_mode;
7996 ring->rxd_count = rxd_count[sp->rxd_mode];
7997 ring->pdev = sp->pdev;
7998 ring->dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007999 }
8000
8001 for (i = 0; i < rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00008002 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
8003
8004 rx_cfg->ring_org = RING_ORG_BUFF1;
8005 rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008006 }
8007
8008 /* Setting Mac Control parameters */
8009 mac_control->rmac_pause_time = rmac_pause_time;
8010 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
8011 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
8012
8013
Linus Torvalds1da177e2005-04-16 15:20:36 -07008014 /* initialize the shared memory used by the NIC and the host */
8015 if (init_shared_mem(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008016 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008017 ret = -ENOMEM;
8018 goto mem_alloc_failed;
8019 }
8020
Arjan van de Ven275f1652008-10-20 21:42:39 -07008021 sp->bar0 = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008022 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008023 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008024 dev->name);
8025 ret = -ENOMEM;
8026 goto bar0_remap_failed;
8027 }
8028
Arjan van de Ven275f1652008-10-20 21:42:39 -07008029 sp->bar1 = pci_ioremap_bar(pdev, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008030 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008031 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008032 dev->name);
8033 ret = -ENOMEM;
8034 goto bar1_remap_failed;
8035 }
8036
8037 dev->irq = pdev->irq;
Joe Perchesd44570e2009-08-24 17:29:44 +00008038 dev->base_addr = (unsigned long)sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008039
8040 /* Initializing the BAR1 address as the start of the FIFO pointer. */
8041 for (j = 0; j < MAX_TX_FIFOS; j++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008042 mac_control->tx_FIFO_start[j] =
8043 (struct TxFIFO_element __iomem *)
8044 (sp->bar1 + (j * 0x00020000));
Linus Torvalds1da177e2005-04-16 15:20:36 -07008045 }
8046
8047 /* Driver entry points */
Stephen Hemminger04025092008-11-21 17:28:55 -08008048 dev->netdev_ops = &s2io_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008049 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07008050 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008051 dev->features |= NETIF_F_LRO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008052 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00008053 if (sp->high_dma_flag == true)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008054 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008055 dev->features |= NETIF_F_TSO;
Herbert Xuf83ef8c2006-06-30 13:37:03 -07008056 dev->features |= NETIF_F_TSO6;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008057 if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05008058 dev->features |= NETIF_F_UFO;
8059 dev->features |= NETIF_F_HW_CSUM;
8060 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008061 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00008062 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
8063 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008064
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07008065 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008066
8067 /* Setting swapper control on the NIC, for proper reset operation */
8068 if (s2io_set_swapper(sp)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008069 DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008070 dev->name);
8071 ret = -EAGAIN;
8072 goto set_swap_failed;
8073 }
8074
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008075 /* Verify if the Herc works on the slot its placed into */
8076 if (sp->device_type & XFRAME_II_DEVICE) {
8077 mode = s2io_verify_pci_mode(sp);
8078 if (mode < 0) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008079 DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n",
8080 __func__);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008081 ret = -EBADSLT;
8082 goto set_swap_failed;
8083 }
8084 }
8085
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008086 if (sp->config.intr_type == MSI_X) {
8087 sp->num_entries = config->rx_ring_num + 1;
8088 ret = s2io_enable_msi_x(sp);
8089
8090 if (!ret) {
8091 ret = s2io_test_msi(sp);
8092 /* rollback MSI-X, will re-enable during add_isr() */
8093 remove_msix_isr(sp);
8094 }
8095 if (ret) {
8096
8097 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00008098 "MSI-X requested but failed to enable\n");
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008099 sp->config.intr_type = INTA;
8100 }
8101 }
8102
8103 if (config->intr_type == MSI_X) {
Joe Perches13d866a2009-08-24 17:29:41 +00008104 for (i = 0; i < config->rx_ring_num ; i++) {
8105 struct ring_info *ring = &mac_control->rings[i];
8106
8107 netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64);
8108 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008109 } else {
8110 netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64);
8111 }
8112
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008113 /* Not needed for Herc */
8114 if (sp->device_type & XFRAME_I_DEVICE) {
8115 /*
8116 * Fix for all "FFs" MAC address problems observed on
8117 * Alpha platforms
8118 */
8119 fix_mac_address(sp);
8120 s2io_reset(sp);
8121 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008122
8123 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07008124 * MAC address initialization.
8125 * For now only one mac address will be read and used.
8126 */
8127 bar0 = sp->bar0;
8128 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Joe Perchesd44570e2009-08-24 17:29:44 +00008129 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008130 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04008131 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00008132 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
8133 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008134 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00008135 mac_down = (u32)tmp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008136 mac_up = (u32) (tmp64 >> 32);
8137
Linus Torvalds1da177e2005-04-16 15:20:36 -07008138 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
8139 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
8140 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
8141 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
8142 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
8143 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
8144
Linus Torvalds1da177e2005-04-16 15:20:36 -07008145 /* Set the factory defined MAC address initially */
8146 dev->addr_len = ETH_ALEN;
8147 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04008148 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008149
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08008150 /* initialize number of multicast & unicast MAC entries variables */
8151 if (sp->device_type == XFRAME_I_DEVICE) {
8152 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
8153 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
8154 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
8155 } else if (sp->device_type == XFRAME_II_DEVICE) {
8156 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
8157 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
8158 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
8159 }
8160
8161 /* store mac addresses from CAM to s2io_nic structure */
8162 do_s2io_store_unicast_mc(sp);
8163
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008164 /* Configure MSIX vector for number of rings configured plus one */
8165 if ((sp->device_type == XFRAME_II_DEVICE) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008166 (config->intr_type == MSI_X))
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008167 sp->num_entries = config->rx_ring_num + 1;
8168
Joe Perchesd44570e2009-08-24 17:29:44 +00008169 /* Store the values of the MSIX table in the s2io_nic structure */
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04008170 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04008171 /* reset Nic and bring it to known state */
8172 s2io_reset(sp);
8173
Linus Torvalds1da177e2005-04-16 15:20:36 -07008174 /*
Sreenivasa Honnur99993af2008-04-23 13:29:42 -04008175 * Initialize link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008176 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07008177 */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04008178 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008179
Linus Torvalds1da177e2005-04-16 15:20:36 -07008180 /* Initialize spinlocks */
Joe Perches13d866a2009-08-24 17:29:41 +00008181 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8182 struct fifo_info *fifo = &mac_control->fifos[i];
8183
8184 spin_lock_init(&fifo->tx_lock);
8185 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008186
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008187 /*
8188 * SXE-002: Configure link and activity LED to init state
8189 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07008190 */
8191 subid = sp->pdev->subsystem_device;
8192 if ((subid & 0xFF) >= 0x07) {
8193 val64 = readq(&bar0->gpio_control);
8194 val64 |= 0x0000800000000000ULL;
8195 writeq(val64, &bar0->gpio_control);
8196 val64 = 0x0411040400000000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00008197 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008198 val64 = readq(&bar0->gpio_control);
8199 }
8200
8201 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
8202
8203 if (register_netdev(dev)) {
8204 DBG_PRINT(ERR_DBG, "Device registration failed\n");
8205 ret = -ENODEV;
8206 goto register_failed;
8207 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04008208 s2io_vpd_read(sp);
Jon Mason926bd902010-07-15 08:47:26 +00008209 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00008210 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07008211 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04008212 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
8213 s2io_driver_version);
Joe Perches9e39f7c2009-08-25 08:52:00 +00008214 DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr);
8215 DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04008216 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07008217 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008218 if (mode < 0) {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008219 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008220 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008221 goto set_swap_failed;
8222 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008223 }
Joe Perchesd44570e2009-08-24 17:29:44 +00008224 switch (sp->rxd_mode) {
8225 case RXD_MODE_1:
8226 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
8227 dev->name);
8228 break;
8229 case RXD_MODE_3B:
8230 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
8231 dev->name);
8232 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008233 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008234
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008235 switch (sp->config.napi) {
8236 case 0:
8237 DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name);
8238 break;
8239 case 1:
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008240 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008241 break;
8242 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008243
8244 DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +00008245 sp->config.tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008246
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008247 DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name,
8248 sp->config.rx_ring_num);
8249
Joe Perchesd44570e2009-08-24 17:29:44 +00008250 switch (sp->config.intr_type) {
8251 case INTA:
8252 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
8253 break;
8254 case MSI_X:
8255 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
8256 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008257 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008258 if (sp->config.multiq) {
Joe Perches13d866a2009-08-24 17:29:41 +00008259 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8260 struct fifo_info *fifo = &mac_control->fifos[i];
8261
8262 fifo->multiq = config->multiq;
8263 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008264 DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008265 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008266 } else
8267 DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008268 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008269
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008270 switch (sp->config.tx_steering_type) {
8271 case NO_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008272 DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n",
8273 dev->name);
8274 break;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008275 case TX_PRIORITY_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008276 DBG_PRINT(ERR_DBG,
8277 "%s: Priority steering enabled for transmit\n",
8278 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008279 break;
8280 case TX_DEFAULT_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008281 DBG_PRINT(ERR_DBG,
8282 "%s: Default steering enabled for transmit\n",
8283 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008284 }
8285
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008286 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
8287 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008288 if (ufo)
Joe Perchesd44570e2009-08-24 17:29:44 +00008289 DBG_PRINT(ERR_DBG,
8290 "%s: UDP Fragmentation Offload(UFO) enabled\n",
8291 dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008292 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04008293 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008294
Breno Leitaocd0fce02008-09-04 17:52:54 -03008295 if (vlan_tag_strip)
8296 sp->vlan_strip_flag = 1;
8297 else
8298 sp->vlan_strip_flag = 0;
8299
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008300 /*
8301 * Make Link state as off at this point, when the Link change
8302 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07008303 * the right state.
8304 */
8305 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008306
8307 return 0;
8308
Joe Perchesd44570e2009-08-24 17:29:44 +00008309register_failed:
8310set_swap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008311 iounmap(sp->bar1);
Joe Perchesd44570e2009-08-24 17:29:44 +00008312bar1_remap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008313 iounmap(sp->bar0);
Joe Perchesd44570e2009-08-24 17:29:44 +00008314bar0_remap_failed:
8315mem_alloc_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008316 free_shared_mem(sp);
8317 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04008318 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008319 pci_set_drvdata(pdev, NULL);
8320 free_netdev(dev);
8321
8322 return ret;
8323}
8324
8325/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008326 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008327 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008328 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008329 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008330 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008331 * from memory.
8332 */
8333
8334static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8335{
Joe Perchesa31ff382010-11-15 10:13:57 +00008336 struct net_device *dev = pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008337 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008338
8339 if (dev == NULL) {
8340 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8341 return;
8342 }
8343
Wang Chen4cf16532008-11-12 23:38:14 -08008344 sp = netdev_priv(dev);
Tejun Heo23f333a2010-12-12 16:45:14 +01008345
8346 cancel_work_sync(&sp->rst_timer_task);
8347 cancel_work_sync(&sp->set_link_task);
8348
Linus Torvalds1da177e2005-04-16 15:20:36 -07008349 unregister_netdev(dev);
8350
8351 free_shared_mem(sp);
8352 iounmap(sp->bar0);
8353 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008354 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008355 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008356 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008357 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008358}
8359
8360/**
8361 * s2io_starter - Entry point for the driver
8362 * Description: This function is the entry point for the driver. It verifies
8363 * the module loadable parameters and initializes PCI configuration space.
8364 */
8365
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008366static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008367{
Jeff Garzik29917622006-08-19 17:48:59 -04008368 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008369}
8370
8371/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008372 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008373 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8374 */
8375
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008376static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008377{
8378 pci_unregister_driver(&s2io_driver);
8379 DBG_PRINT(INIT_DBG, "cleanup done\n");
8380}
8381
8382module_init(s2io_starter);
8383module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008384
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008385static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008386 struct tcphdr **tcp, struct RxD_t *rxdp,
8387 struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008388{
8389 int ip_off;
8390 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8391
8392 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008393 DBG_PRINT(INIT_DBG,
8394 "%s: Non-TCP frames not supported for LRO\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008395 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008396 return -1;
8397 }
8398
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008399 /* Checking for DIX type or DIX type with VLAN */
Joe Perchesd44570e2009-08-24 17:29:44 +00008400 if ((l2_type == 0) || (l2_type == 4)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008401 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8402 /*
8403 * If vlan stripping is disabled and the frame is VLAN tagged,
8404 * shift the offset by the VLAN header size bytes.
8405 */
Breno Leitaocd0fce02008-09-04 17:52:54 -03008406 if ((!sp->vlan_strip_flag) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008407 (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008408 ip_off += HEADER_VLAN_SIZE;
8409 } else {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008410 /* LLC, SNAP etc are considered non-mergeable */
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008411 return -1;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008412 }
8413
8414 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8415 ip_len = (u8)((*ip)->ihl);
8416 ip_len <<= 2;
8417 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8418
8419 return 0;
8420}
8421
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008422static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008423 struct tcphdr *tcp)
8424{
Joe Perchesd44570e2009-08-24 17:29:44 +00008425 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
8426 if ((lro->iph->saddr != ip->saddr) ||
8427 (lro->iph->daddr != ip->daddr) ||
8428 (lro->tcph->source != tcp->source) ||
8429 (lro->tcph->dest != tcp->dest))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008430 return -1;
8431 return 0;
8432}
8433
8434static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8435{
Joe Perchesd44570e2009-08-24 17:29:44 +00008436 return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008437}
8438
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008439static void initiate_new_session(struct lro *lro, u8 *l2h,
Joe Perchesd44570e2009-08-24 17:29:44 +00008440 struct iphdr *ip, struct tcphdr *tcp,
8441 u32 tcp_pyld_len, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008442{
Joe Perchesd44570e2009-08-24 17:29:44 +00008443 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008444 lro->l2h = l2h;
8445 lro->iph = ip;
8446 lro->tcph = tcp;
8447 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008448 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008449 lro->sg_num = 1;
8450 lro->total_len = ntohs(ip->tot_len);
8451 lro->frags_len = 0;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008452 lro->vlan_tag = vlan_tag;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008453 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00008454 * Check if we saw TCP timestamp.
8455 * Other consistency checks have already been done.
8456 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008457 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008458 __be32 *ptr;
8459 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008460 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008461 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008462 lro->cur_tsecr = *(ptr+2);
8463 }
8464 lro->in_use = 1;
8465}
8466
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008467static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008468{
8469 struct iphdr *ip = lro->iph;
8470 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008471 __sum16 nchk;
Joe Perchesffb5df62009-08-24 17:29:47 +00008472 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
8473
Joe Perchesd44570e2009-08-24 17:29:44 +00008474 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008475
8476 /* Update L3 header */
8477 ip->tot_len = htons(lro->total_len);
8478 ip->check = 0;
8479 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8480 ip->check = nchk;
8481
8482 /* Update L4 header */
8483 tcp->ack_seq = lro->tcp_ack;
8484 tcp->window = lro->window;
8485
8486 /* Update tsecr field if this session has timestamps enabled */
8487 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008488 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008489 *(ptr+2) = lro->cur_tsecr;
8490 }
8491
8492 /* Update counters required for calculation of
8493 * average no. of packets aggregated.
8494 */
Joe Perchesffb5df62009-08-24 17:29:47 +00008495 swstats->sum_avg_pkts_aggregated += lro->sg_num;
8496 swstats->num_aggregations++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008497}
8498
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008499static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008500 struct tcphdr *tcp, u32 l4_pyld)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008501{
Joe Perchesd44570e2009-08-24 17:29:44 +00008502 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008503 lro->total_len += l4_pyld;
8504 lro->frags_len += l4_pyld;
8505 lro->tcp_next_seq += l4_pyld;
8506 lro->sg_num++;
8507
8508 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8509 lro->tcp_ack = tcp->ack_seq;
8510 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008511
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008512 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008513 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008514 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008515 ptr = (__be32 *)(tcp+1);
8516 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008517 lro->cur_tsecr = *(ptr + 2);
8518 }
8519}
8520
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008521static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008522 struct tcphdr *tcp, u32 tcp_pyld_len)
8523{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008524 u8 *ptr;
8525
Joe Perchesd44570e2009-08-24 17:29:44 +00008526 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Andrew Morton79dc1902006-02-03 01:45:13 -08008527
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008528 if (!tcp_pyld_len) {
8529 /* Runt frame or a pure ack */
8530 return -1;
8531 }
8532
8533 if (ip->ihl != 5) /* IP has options */
8534 return -1;
8535
Ananda Raju75c30b12006-07-24 19:55:09 -04008536 /* If we see CE codepoint in IP header, packet is not mergeable */
8537 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8538 return -1;
8539
8540 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Joe Perchesd44570e2009-08-24 17:29:44 +00008541 if (tcp->urg || tcp->psh || tcp->rst ||
8542 tcp->syn || tcp->fin ||
8543 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008544 /*
8545 * Currently recognize only the ack control word and
8546 * any other control field being set would result in
8547 * flushing the LRO session
8548 */
8549 return -1;
8550 }
8551
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008552 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008553 * Allow only one TCP timestamp option. Don't aggregate if
8554 * any other options are detected.
8555 */
8556 if (tcp->doff != 5 && tcp->doff != 8)
8557 return -1;
8558
8559 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008560 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008561 while (*ptr == TCPOPT_NOP)
8562 ptr++;
8563 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8564 return -1;
8565
8566 /* Ensure timestamp value increases monotonically */
8567 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008568 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008569 return -1;
8570
8571 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008572 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008573 return -1;
8574 }
8575
8576 return 0;
8577}
8578
Joe Perchesd44570e2009-08-24 17:29:44 +00008579static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
8580 u8 **tcp, u32 *tcp_len, struct lro **lro,
8581 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008582{
8583 struct iphdr *ip;
8584 struct tcphdr *tcph;
8585 int ret = 0, i;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008586 u16 vlan_tag = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00008587 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008588
Joe Perchesd44570e2009-08-24 17:29:44 +00008589 ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8590 rxdp, sp);
8591 if (ret)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008592 return ret;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008593
Joe Perchesd44570e2009-08-24 17:29:44 +00008594 DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);
8595
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008596 vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008597 tcph = (struct tcphdr *)*tcp;
8598 *tcp_len = get_l4_pyld_length(ip, tcph);
Joe Perchesd44570e2009-08-24 17:29:44 +00008599 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008600 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008601 if (l_lro->in_use) {
8602 if (check_for_socket_match(l_lro, ip, tcph))
8603 continue;
8604 /* Sock pair matched */
8605 *lro = l_lro;
8606
8607 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008608 DBG_PRINT(INFO_DBG, "%s: Out of sequence. "
8609 "expected 0x%x, actual 0x%x\n",
8610 __func__,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008611 (*lro)->tcp_next_seq,
8612 ntohl(tcph->seq));
8613
Joe Perchesffb5df62009-08-24 17:29:47 +00008614 swstats->outof_sequence_pkts++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008615 ret = 2;
8616 break;
8617 }
8618
Joe Perchesd44570e2009-08-24 17:29:44 +00008619 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,
8620 *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008621 ret = 1; /* Aggregate */
8622 else
8623 ret = 2; /* Flush both */
8624 break;
8625 }
8626 }
8627
8628 if (ret == 0) {
8629 /* Before searching for available LRO objects,
8630 * check if the pkt is L3/L4 aggregatable. If not
8631 * don't create new LRO session. Just send this
8632 * packet up.
8633 */
Joe Perchesd44570e2009-08-24 17:29:44 +00008634 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008635 return 5;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008636
Joe Perchesd44570e2009-08-24 17:29:44 +00008637 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008638 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008639 if (!(l_lro->in_use)) {
8640 *lro = l_lro;
8641 ret = 3; /* Begin anew */
8642 break;
8643 }
8644 }
8645 }
8646
8647 if (ret == 0) { /* sessions exceeded */
Joe Perches9e39f7c2009-08-25 08:52:00 +00008648 DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008649 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008650 *lro = NULL;
8651 return ret;
8652 }
8653
8654 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008655 case 3:
8656 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
8657 vlan_tag);
8658 break;
8659 case 2:
8660 update_L3L4_header(sp, *lro);
8661 break;
8662 case 1:
8663 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8664 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008665 update_L3L4_header(sp, *lro);
Joe Perchesd44570e2009-08-24 17:29:44 +00008666 ret = 4; /* Flush the LRO */
8667 }
8668 break;
8669 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00008670 DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__);
Joe Perchesd44570e2009-08-24 17:29:44 +00008671 break;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008672 }
8673
8674 return ret;
8675}
8676
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008677static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008678{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008679 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008680
8681 memset(lro, 0, lro_struct_size);
8682}
8683
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008684static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008685{
8686 struct net_device *dev = skb->dev;
Wang Chen4cf16532008-11-12 23:38:14 -08008687 struct s2io_nic *sp = netdev_priv(dev);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008688
8689 skb->protocol = eth_type_trans(skb, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00008690 if (sp->vlgrp && vlan_tag && (sp->vlan_strip_flag)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008691 /* Queueing the vlan frame to the upper layer */
8692 if (sp->config.napi)
8693 vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);
8694 else
8695 vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag);
8696 } else {
8697 if (sp->config.napi)
8698 netif_receive_skb(skb);
8699 else
8700 netif_rx(skb);
8701 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008702}
8703
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008704static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
Joe Perchesd44570e2009-08-24 17:29:44 +00008705 struct sk_buff *skb, u32 tcp_len)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008706{
Ananda Raju75c30b12006-07-24 19:55:09 -04008707 struct sk_buff *first = lro->parent;
Joe Perchesffb5df62009-08-24 17:29:47 +00008708 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008709
8710 first->len += tcp_len;
8711 first->data_len = lro->frags_len;
8712 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008713 if (skb_shinfo(first)->frag_list)
8714 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008715 else
8716 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008717 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008718 lro->last_frag = skb;
Joe Perchesffb5df62009-08-24 17:29:47 +00008719 swstats->clubbed_frms_cnt++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008720}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008721
8722/**
8723 * s2io_io_error_detected - called when PCI error is detected
8724 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008725 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008726 *
8727 * This function is called after a PCI bus error affecting
8728 * this device has been detected.
8729 */
8730static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00008731 pci_channel_state_t state)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008732{
8733 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008734 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008735
8736 netif_device_detach(netdev);
8737
Dean Nelson1e3c8bd2009-07-31 09:13:56 +00008738 if (state == pci_channel_io_perm_failure)
8739 return PCI_ERS_RESULT_DISCONNECT;
8740
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008741 if (netif_running(netdev)) {
8742 /* Bring down the card, while avoiding PCI I/O */
8743 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008744 }
8745 pci_disable_device(pdev);
8746
8747 return PCI_ERS_RESULT_NEED_RESET;
8748}
8749
8750/**
8751 * s2io_io_slot_reset - called after the pci bus has been reset.
8752 * @pdev: Pointer to PCI device
8753 *
8754 * Restart the card from scratch, as if from a cold-boot.
8755 * At this point, the card has exprienced a hard reset,
8756 * followed by fixups by BIOS, and has its config space
8757 * set up identically to what it was at cold boot.
8758 */
8759static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8760{
8761 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008762 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008763
8764 if (pci_enable_device(pdev)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008765 pr_err("Cannot re-enable PCI device after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008766 return PCI_ERS_RESULT_DISCONNECT;
8767 }
8768
8769 pci_set_master(pdev);
8770 s2io_reset(sp);
8771
8772 return PCI_ERS_RESULT_RECOVERED;
8773}
8774
8775/**
8776 * s2io_io_resume - called when traffic can start flowing again.
8777 * @pdev: Pointer to PCI device
8778 *
8779 * This callback is called when the error recovery driver tells
8780 * us that its OK to resume normal operation.
8781 */
8782static void s2io_io_resume(struct pci_dev *pdev)
8783{
8784 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008785 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008786
8787 if (netif_running(netdev)) {
8788 if (s2io_card_up(sp)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008789 pr_err("Can't bring device back up after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008790 return;
8791 }
8792
8793 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8794 s2io_card_down(sp);
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008795 pr_err("Can't restore mac addr after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008796 return;
8797 }
8798 }
8799
8800 netif_device_attach(netdev);
David S. Millerfd2ea0a2008-07-17 01:56:23 -07008801 netif_tx_wake_all_queues(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008802}