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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 Mason666be422010-08-12 05:03:04 +000091#define DRV_VERSION "2.0.26.27"
John Linville6c1792f2005-10-04 07:51:45 -040092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093/* S2io Driver name & version. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070094static char s2io_driver_name[] = "Neterion";
John Linville6c1792f2005-10-04 07:51:45 -040095static char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Joe Perchesd44570e2009-08-24 17:29:44 +000097static int rxd_size[2] = {32, 48};
98static 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;
3601 u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3602 0x8100008181000081ULL, /* FE=1, SE=0 */
3603 0x4200004242000042ULL, /* FE=0, SE=1 */
3604 0}; /* FE=0, SE=0 */
3605
Joe Perchesd44570e2009-08-24 17:29:44 +00003606 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003607 writeq(value[i], &bar0->swapper_ctrl);
3608 val64 = readq(&bar0->pif_rd_swapper_fb);
3609 if (val64 == 0x0123456789ABCDEFULL)
3610 break;
3611 i++;
3612 }
3613 if (i == 4) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003614 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, "
3615 "feedback read %llx\n",
3616 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003617 return FAILURE;
3618 }
3619 valr = value[i];
3620 } else {
3621 valr = readq(&bar0->swapper_ctrl);
3622 }
3623
3624 valt = 0x0123456789ABCDEFULL;
3625 writeq(valt, &bar0->xmsi_address);
3626 val64 = readq(&bar0->xmsi_address);
3627
Joe Perchesd44570e2009-08-24 17:29:44 +00003628 if (val64 != valt) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003629 int i = 0;
3630 u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3631 0x0081810000818100ULL, /* FE=1, SE=0 */
3632 0x0042420000424200ULL, /* FE=0, SE=1 */
3633 0}; /* FE=0, SE=0 */
3634
Joe Perchesd44570e2009-08-24 17:29:44 +00003635 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003636 writeq((value[i] | valr), &bar0->swapper_ctrl);
3637 writeq(valt, &bar0->xmsi_address);
3638 val64 = readq(&bar0->xmsi_address);
Joe Perchesd44570e2009-08-24 17:29:44 +00003639 if (val64 == valt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003640 break;
3641 i++;
3642 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003643 if (i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003644 unsigned long long x = val64;
Joe Perches9e39f7c2009-08-25 08:52:00 +00003645 DBG_PRINT(ERR_DBG,
3646 "Write failed, Xmsi_addr reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003647 return FAILURE;
3648 }
3649 }
3650 val64 = readq(&bar0->swapper_ctrl);
3651 val64 &= 0xFFFF000000000000ULL;
3652
Joe Perchesd44570e2009-08-24 17:29:44 +00003653#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003654 /*
3655 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003656 * big endian driver need not set anything.
3657 */
3658 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003659 SWAPPER_CTRL_TXP_SE |
3660 SWAPPER_CTRL_TXD_R_FE |
3661 SWAPPER_CTRL_TXD_W_FE |
3662 SWAPPER_CTRL_TXF_R_FE |
3663 SWAPPER_CTRL_RXD_R_FE |
3664 SWAPPER_CTRL_RXD_W_FE |
3665 SWAPPER_CTRL_RXF_W_FE |
3666 SWAPPER_CTRL_XMSI_FE |
3667 SWAPPER_CTRL_STATS_FE |
3668 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003669 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003670 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003671 writeq(val64, &bar0->swapper_ctrl);
3672#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003673 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003674 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003675 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003676 * we want to set.
3677 */
3678 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003679 SWAPPER_CTRL_TXP_SE |
3680 SWAPPER_CTRL_TXD_R_FE |
3681 SWAPPER_CTRL_TXD_R_SE |
3682 SWAPPER_CTRL_TXD_W_FE |
3683 SWAPPER_CTRL_TXD_W_SE |
3684 SWAPPER_CTRL_TXF_R_FE |
3685 SWAPPER_CTRL_RXD_R_FE |
3686 SWAPPER_CTRL_RXD_R_SE |
3687 SWAPPER_CTRL_RXD_W_FE |
3688 SWAPPER_CTRL_RXD_W_SE |
3689 SWAPPER_CTRL_RXF_W_FE |
3690 SWAPPER_CTRL_XMSI_FE |
3691 SWAPPER_CTRL_STATS_FE |
3692 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003693 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003694 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003695 writeq(val64, &bar0->swapper_ctrl);
3696#endif
3697 val64 = readq(&bar0->swapper_ctrl);
3698
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003699 /*
3700 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003701 * feedback register.
3702 */
3703 val64 = readq(&bar0->pif_rd_swapper_fb);
3704 if (val64 != 0x0123456789ABCDEFULL) {
3705 /* Endian settings are incorrect, calls for another dekko. */
Joe Perches9e39f7c2009-08-25 08:52:00 +00003706 DBG_PRINT(ERR_DBG,
3707 "%s: Endian settings are wrong, feedback read %llx\n",
3708 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003709 return FAILURE;
3710 }
3711
3712 return SUCCESS;
3713}
3714
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003715static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003716{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003717 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003718 u64 val64;
3719 int ret = 0, cnt = 0;
3720
3721 do {
3722 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003723 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003724 break;
3725 mdelay(1);
3726 cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00003727 } while (cnt < 5);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003728 if (cnt == 5) {
3729 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3730 ret = 1;
3731 }
3732
3733 return ret;
3734}
3735
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003736static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003737{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003738 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003739 u64 val64;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003740 int i, msix_index;
3741
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003742 if (nic->device_type == XFRAME_I_DEVICE)
3743 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003744
Joe Perchesd44570e2009-08-24 17:29:44 +00003745 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3746 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003747 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3748 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003749 val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003750 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003751 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003752 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3753 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003754 continue;
3755 }
3756 }
3757}
3758
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003759static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003760{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003761 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003762 u64 val64, addr, data;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003763 int i, msix_index;
3764
3765 if (nic->device_type == XFRAME_I_DEVICE)
3766 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003767
3768 /* Store and display */
Joe Perchesd44570e2009-08-24 17:29:44 +00003769 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3770 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003771 val64 = (s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003772 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003773 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003774 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3775 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003776 continue;
3777 }
3778 addr = readq(&bar0->xmsi_address);
3779 data = readq(&bar0->xmsi_data);
3780 if (addr && data) {
3781 nic->msix_info[i].addr = addr;
3782 nic->msix_info[i].data = data;
3783 }
3784 }
3785}
3786
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003787static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003788{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003789 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003790 u64 rx_mat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003791 u16 msi_control; /* Temp variable */
3792 int ret, i, j, msix_indx = 1;
Joe Perches4f870322009-08-24 17:29:42 +00003793 int size;
Joe Perchesffb5df62009-08-24 17:29:47 +00003794 struct stat_block *stats = nic->mac_control.stats_info;
3795 struct swStat *swstats = &stats->sw_stat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003796
Joe Perches4f870322009-08-24 17:29:42 +00003797 size = nic->num_entries * sizeof(struct msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003798 nic->entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003799 if (!nic->entries) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003800 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
3801 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003802 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003803 return -ENOMEM;
3804 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003805 swstats->mem_allocated += size;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003806
Joe Perches4f870322009-08-24 17:29:42 +00003807 size = nic->num_entries * sizeof(struct s2io_msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003808 nic->s2io_entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003809 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003810 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003811 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003812 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003813 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003814 swstats->mem_freed
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003815 += (nic->num_entries * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003816 return -ENOMEM;
3817 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003818 swstats->mem_allocated += size;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003819
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003820 nic->entries[0].entry = 0;
3821 nic->s2io_entries[0].entry = 0;
3822 nic->s2io_entries[0].in_use = MSIX_FLG;
3823 nic->s2io_entries[0].type = MSIX_ALARM_TYPE;
3824 nic->s2io_entries[0].arg = &nic->mac_control.fifos;
3825
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003826 for (i = 1; i < nic->num_entries; i++) {
3827 nic->entries[i].entry = ((i - 1) * 8) + 1;
3828 nic->s2io_entries[i].entry = ((i - 1) * 8) + 1;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003829 nic->s2io_entries[i].arg = NULL;
3830 nic->s2io_entries[i].in_use = 0;
3831 }
3832
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003833 rx_mat = readq(&bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003834 for (j = 0; j < nic->config.rx_ring_num; j++) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003835 rx_mat |= RX_MAT_SET(j, msix_indx);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003836 nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j];
3837 nic->s2io_entries[j+1].type = MSIX_RING_TYPE;
3838 nic->s2io_entries[j+1].in_use = MSIX_FLG;
3839 msix_indx += 8;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003840 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003841 writeq(rx_mat, &bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003842 readq(&bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003843
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003844 ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003845 /* We fail init if error or we get less vectors than min required */
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003846 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003847 DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n");
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003848 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003849 swstats->mem_freed += nic->num_entries *
3850 sizeof(struct msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003851 kfree(nic->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003852 swstats->mem_freed += nic->num_entries *
3853 sizeof(struct s2io_msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003854 nic->entries = NULL;
3855 nic->s2io_entries = NULL;
3856 return -ENOMEM;
3857 }
3858
3859 /*
3860 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3861 * in the herc NIC. (Temp change, needs to be removed later)
3862 */
3863 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3864 msi_control |= 0x1; /* Enable MSI */
3865 pci_write_config_word(nic->pdev, 0x42, msi_control);
3866
3867 return 0;
3868}
3869
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003870/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003871static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003872{
3873 struct s2io_nic *sp = dev_id;
3874
3875 sp->msi_detected = 1;
3876 wake_up(&sp->msi_wait);
3877
3878 return IRQ_HANDLED;
3879}
3880
3881/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003882static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003883{
3884 struct pci_dev *pdev = sp->pdev;
3885 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3886 int err;
3887 u64 val64, saved64;
3888
3889 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00003890 sp->name, sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003891 if (err) {
3892 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003893 sp->dev->name, pci_name(pdev), pdev->irq);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003894 return err;
3895 }
3896
Joe Perchesd44570e2009-08-24 17:29:44 +00003897 init_waitqueue_head(&sp->msi_wait);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003898 sp->msi_detected = 0;
3899
3900 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3901 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3902 val64 |= SCHED_INT_CTRL_TIMER_EN;
3903 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3904 writeq(val64, &bar0->scheduled_int_ctrl);
3905
3906 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3907
3908 if (!sp->msi_detected) {
3909 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003910 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Joe Perches9e39f7c2009-08-25 08:52:00 +00003911 "using MSI(X) during test\n",
3912 sp->dev->name, pci_name(pdev));
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003913
3914 err = -EOPNOTSUPP;
3915 }
3916
3917 free_irq(sp->entries[1].vector, sp);
3918
3919 writeq(saved64, &bar0->scheduled_int_ctrl);
3920
3921 return err;
3922}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003923
3924static void remove_msix_isr(struct s2io_nic *sp)
3925{
3926 int i;
3927 u16 msi_control;
3928
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003929 for (i = 0; i < sp->num_entries; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003930 if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003931 int vector = sp->entries[i].vector;
3932 void *arg = sp->s2io_entries[i].arg;
3933 free_irq(vector, arg);
3934 }
3935 }
3936
3937 kfree(sp->entries);
3938 kfree(sp->s2io_entries);
3939 sp->entries = NULL;
3940 sp->s2io_entries = NULL;
3941
3942 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3943 msi_control &= 0xFFFE; /* Disable MSI */
3944 pci_write_config_word(sp->pdev, 0x42, msi_control);
3945
3946 pci_disable_msix(sp->pdev);
3947}
3948
3949static void remove_inta_isr(struct s2io_nic *sp)
3950{
3951 struct net_device *dev = sp->dev;
3952
3953 free_irq(sp->pdev->irq, dev);
3954}
3955
Linus Torvalds1da177e2005-04-16 15:20:36 -07003956/* ********************************************************* *
3957 * Functions defined below concern the OS part of the driver *
3958 * ********************************************************* */
3959
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003960/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003961 * s2io_open - open entry point of the driver
3962 * @dev : pointer to the device structure.
3963 * Description:
3964 * This function is the open entry point of the driver. It mainly calls a
3965 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003966 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003967 * Return value:
3968 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3969 * file on failure.
3970 */
3971
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003972static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003973{
Wang Chen4cf16532008-11-12 23:38:14 -08003974 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003975 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003976 int err = 0;
3977
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003978 /*
3979 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980 * Nic is initialized
3981 */
3982 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003983 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003984
3985 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003986 err = s2io_card_up(sp);
3987 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003988 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3989 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003990 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003991 }
3992
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003993 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003994 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003995 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003996 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003997 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003998 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003999 s2io_start_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004000 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004001
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004002hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07004003 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004004 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004005 kfree(sp->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004006 swstats->mem_freed += sp->num_entries *
4007 sizeof(struct msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004008 }
4009 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004010 kfree(sp->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004011 swstats->mem_freed += sp->num_entries *
4012 sizeof(struct s2io_msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004013 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004014 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004015 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004016}
4017
4018/**
4019 * s2io_close -close entry point of the driver
4020 * @dev : device pointer.
4021 * Description:
4022 * This is the stop entry point of the driver. It needs to undo exactly
4023 * whatever was done by the open entry point,thus it's usually referred to
4024 * as the close function.Among other things this function mainly stops the
4025 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
4026 * Return value:
4027 * 0 on success and an appropriate (-)ve integer as defined in errno.h
4028 * file on failure.
4029 */
4030
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004031static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004032{
Wang Chen4cf16532008-11-12 23:38:14 -08004033 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004034 struct config_param *config = &sp->config;
4035 u64 tmp64;
4036 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004037
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004038 /* Return if the device is already closed *
Joe Perchesd44570e2009-08-24 17:29:44 +00004039 * Can happen when s2io_card_up failed in change_mtu *
4040 */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004041 if (!is_s2io_card_up(sp))
4042 return 0;
4043
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004044 s2io_stop_all_tx_queue(sp);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004045 /* delete all populated mac entries */
4046 for (offset = 1; offset < config->max_mc_addr; offset++) {
4047 tmp64 = do_s2io_read_unicast_mc(sp, offset);
4048 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
4049 do_s2io_delete_unicast_mc(sp, tmp64);
4050 }
4051
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004052 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004053
Linus Torvalds1da177e2005-04-16 15:20:36 -07004054 return 0;
4055}
4056
4057/**
4058 * s2io_xmit - Tx entry point of te driver
4059 * @skb : the socket buffer containing the Tx data.
4060 * @dev : device pointer.
4061 * Description :
4062 * This function is the Tx entry point of the driver. S2IO NIC supports
4063 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
4064 * NOTE: when device cant queue the pkt,just the trans_start variable will
4065 * not be upadted.
4066 * Return value:
4067 * 0 on success & 1 on failure.
4068 */
4069
Stephen Hemminger613573252009-08-31 19:50:58 +00004070static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004071{
Wang Chen4cf16532008-11-12 23:38:14 -08004072 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004073 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4074 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004075 struct TxD *txdp;
4076 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004077 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004078 u16 vlan_tag = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004079 struct fifo_info *fifo = NULL;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004080 int do_spin_lock = 1;
Ananda Raju75c30b12006-07-24 19:55:09 -04004081 int offload_type;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004082 int enable_per_list_interrupt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00004083 struct config_param *config = &sp->config;
4084 struct mac_info *mac_control = &sp->mac_control;
4085 struct stat_block *stats = mac_control->stats_info;
4086 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004087
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004088 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004089
4090 if (unlikely(skb->len <= 0)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00004091 DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004092 dev_kfree_skb_any(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004093 return NETDEV_TX_OK;
Surjit Reang2fda0962008-01-24 02:08:59 -08004094 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004095
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004096 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004097 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004098 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004099 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004100 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004101 }
4102
4103 queue = 0;
Jesse Grosseab6d182010-10-20 13:56:03 +00004104 if (vlan_tx_tag_present(skb))
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004105 vlan_tag = vlan_tx_tag_get(skb);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004106 if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) {
4107 if (skb->protocol == htons(ETH_P_IP)) {
4108 struct iphdr *ip;
4109 struct tcphdr *th;
4110 ip = ip_hdr(skb);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004111
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004112 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
4113 th = (struct tcphdr *)(((unsigned char *)ip) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004114 ip->ihl*4);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004115
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004116 if (ip->protocol == IPPROTO_TCP) {
4117 queue_len = sp->total_tcp_fifos;
4118 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004119 ntohs(th->dest)) &
4120 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004121 if (queue >= queue_len)
4122 queue = queue_len - 1;
4123 } else if (ip->protocol == IPPROTO_UDP) {
4124 queue_len = sp->total_udp_fifos;
4125 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004126 ntohs(th->dest)) &
4127 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004128 if (queue >= queue_len)
4129 queue = queue_len - 1;
4130 queue += sp->udp_fifo_idx;
4131 if (skb->len > 1024)
4132 enable_per_list_interrupt = 1;
4133 do_spin_lock = 0;
4134 }
4135 }
4136 }
4137 } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING)
4138 /* get fifo number based on skb->priority value */
4139 queue = config->fifo_mapping
Joe Perchesd44570e2009-08-24 17:29:44 +00004140 [skb->priority & (MAX_TX_FIFOS - 1)];
Surjit Reang2fda0962008-01-24 02:08:59 -08004141 fifo = &mac_control->fifos[queue];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004142
4143 if (do_spin_lock)
4144 spin_lock_irqsave(&fifo->tx_lock, flags);
4145 else {
4146 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
4147 return NETDEV_TX_LOCKED;
4148 }
4149
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004150 if (sp->config.multiq) {
4151 if (__netif_subqueue_stopped(dev, fifo->fifo_no)) {
4152 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4153 return NETDEV_TX_BUSY;
4154 }
David S. Millerb19fa1f2008-07-08 23:14:24 -07004155 } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004156 if (netif_queue_stopped(dev)) {
4157 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4158 return NETDEV_TX_BUSY;
4159 }
4160 }
4161
Joe Perchesd44570e2009-08-24 17:29:44 +00004162 put_off = (u16)fifo->tx_curr_put_info.offset;
4163 get_off = (u16)fifo->tx_curr_get_info.offset;
4164 txdp = (struct TxD *)fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004165
Surjit Reang2fda0962008-01-24 02:08:59 -08004166 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004167 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004168 if (txdp->Host_Control ||
Joe Perchesd44570e2009-08-24 17:29:44 +00004169 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004170 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004171 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004172 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004173 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004174 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004175 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004176
Ananda Raju75c30b12006-07-24 19:55:09 -04004177 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004178 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004179 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004180 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004181 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004182 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004183 txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN |
4184 TXD_TX_CKO_TCP_EN |
4185 TXD_TX_CKO_UDP_EN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004186 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004187 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4188 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004189 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004190 if (enable_per_list_interrupt)
4191 if (put_off & (queue_len >> 5))
4192 txdp->Control_2 |= TXD_INT_TYPE_PER_LIST;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004193 if (vlan_tag) {
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004194 txdp->Control_2 |= TXD_VLAN_ENABLE;
4195 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4196 }
4197
Eric Dumazete743d312010-04-14 15:59:40 -07004198 frg_len = skb_headlen(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004199 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004200 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004201
Ananda Raju75c30b12006-07-24 19:55:09 -04004202 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004203 ufo_size &= ~7;
4204 txdp->Control_1 |= TXD_UFO_EN;
4205 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4206 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4207#ifdef __BIG_ENDIAN
Al Viro3459feb2008-03-16 22:23:14 +00004208 /* both variants do cpu_to_be64(be32_to_cpu(...)) */
Surjit Reang2fda0962008-01-24 02:08:59 -08004209 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004210 (__force u64)skb_shinfo(skb)->ip6_frag_id;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004211#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004212 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004213 (__force u64)skb_shinfo(skb)->ip6_frag_id << 32;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004214#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004215 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004216 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00004217 fifo->ufo_in_band_v,
4218 sizeof(u64),
4219 PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004220 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004221 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004222 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004223 }
4224
Joe Perchesd44570e2009-08-24 17:29:44 +00004225 txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
4226 frg_len, PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004227 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004228 goto pci_map_failed;
4229
Joe Perchesd44570e2009-08-24 17:29:44 +00004230 txdp->Host_Control = (unsigned long)skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004231 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004232 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004233 txdp->Control_1 |= TXD_UFO_EN;
4234
4235 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004236 /* For fragmented SKB. */
4237 for (i = 0; i < frg_cnt; i++) {
4238 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004239 /* A '0' length fragment will be ignored */
4240 if (!frag->size)
4241 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004242 txdp++;
Joe Perchesd44570e2009-08-24 17:29:44 +00004243 txdp->Buffer_Pointer = (u64)pci_map_page(sp->pdev, frag->page,
4244 frag->page_offset,
4245 frag->size,
4246 PCI_DMA_TODEVICE);
Ananda Rajuefd51b52006-01-19 14:11:54 -05004247 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
Ananda Raju75c30b12006-07-24 19:55:09 -04004248 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004249 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004250 }
4251 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4252
Ananda Raju75c30b12006-07-24 19:55:09 -04004253 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004254 frg_cnt++; /* as Txd0 was used for inband header */
4255
Linus Torvalds1da177e2005-04-16 15:20:36 -07004256 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004257 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004258 writeq(val64, &tx_fifo->TxDL_Pointer);
4259
4260 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4261 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004262 if (offload_type)
4263 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004264
Linus Torvalds1da177e2005-04-16 15:20:36 -07004265 writeq(val64, &tx_fifo->List_Control);
4266
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004267 mmiowb();
4268
Linus Torvalds1da177e2005-04-16 15:20:36 -07004269 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004270 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004271 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004272 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004273
4274 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004275 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Joe Perchesffb5df62009-08-24 17:29:47 +00004276 swstats->fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004277 DBG_PRINT(TX_DBG,
4278 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4279 put_off, get_off);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004280 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004281 }
Joe Perchesffb5df62009-08-24 17:29:47 +00004282 swstats->mem_allocated += skb->truesize;
Surjit Reang2fda0962008-01-24 02:08:59 -08004283 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004284
Sreenivasa Honnurf6f4bfa2008-03-25 15:11:56 -04004285 if (sp->config.intr_type == MSI_X)
4286 tx_intr_handler(fifo);
4287
Patrick McHardy6ed10652009-06-23 06:03:08 +00004288 return NETDEV_TX_OK;
Joe Perchesffb5df62009-08-24 17:29:47 +00004289
Veena Parat491abf22007-07-23 02:37:14 -04004290pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00004291 swstats->pci_map_fail_cnt++;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004292 s2io_stop_tx_queue(sp, fifo->fifo_no);
Joe Perchesffb5df62009-08-24 17:29:47 +00004293 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04004294 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004295 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004296 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004297}
4298
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004299static void
4300s2io_alarm_handle(unsigned long data)
4301{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004302 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004303 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004304
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004305 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004306 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4307}
4308
David Howells7d12e782006-10-05 14:55:46 +01004309static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004310{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004311 struct ring_info *ring = (struct ring_info *)dev_id;
4312 struct s2io_nic *sp = ring->nic;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004313 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004314
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004315 if (unlikely(!is_s2io_card_up(sp)))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004316 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004317
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004318 if (sp->config.napi) {
Al Viro1a79d1c2008-06-02 10:59:02 +01004319 u8 __iomem *addr = NULL;
4320 u8 val8 = 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004321
Al Viro1a79d1c2008-06-02 10:59:02 +01004322 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004323 addr += (7 - ring->ring_no);
4324 val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
4325 writeb(val8, addr);
4326 val8 = readb(addr);
Ben Hutchings288379f2009-01-19 16:43:59 -08004327 napi_schedule(&ring->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004328 } else {
4329 rx_intr_handler(ring, 0);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004330 s2io_chk_rx_buffers(sp, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004331 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004332
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004333 return IRQ_HANDLED;
4334}
4335
David Howells7d12e782006-10-05 14:55:46 +01004336static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004337{
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004338 int i;
4339 struct fifo_info *fifos = (struct fifo_info *)dev_id;
4340 struct s2io_nic *sp = fifos->nic;
4341 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4342 struct config_param *config = &sp->config;
4343 u64 reason;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004344
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004345 if (unlikely(!is_s2io_card_up(sp)))
4346 return IRQ_NONE;
4347
4348 reason = readq(&bar0->general_int_status);
4349 if (unlikely(reason == S2IO_MINUS_ONE))
4350 /* Nothing much can be done. Get out */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004351 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004352
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004353 if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
4354 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004355
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004356 if (reason & GEN_INTR_TXPIC)
4357 s2io_txpic_intr_handle(sp);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004358
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004359 if (reason & GEN_INTR_TXTRAFFIC)
4360 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004361
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004362 for (i = 0; i < config->tx_fifo_num; i++)
4363 tx_intr_handler(&fifos[i]);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004364
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004365 writeq(sp->general_int_mask, &bar0->general_int_mask);
4366 readl(&bar0->general_int_status);
4367 return IRQ_HANDLED;
4368 }
4369 /* The interrupt was not raised by us */
4370 return IRQ_NONE;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004371}
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004372
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004373static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004374{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004375 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004376 u64 val64;
4377
4378 val64 = readq(&bar0->pic_int_status);
4379 if (val64 & PIC_INT_GPIO) {
4380 val64 = readq(&bar0->gpio_int_reg);
4381 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4382 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004383 /*
4384 * This is unstable state so clear both up/down
4385 * interrupt and adapter to re-evaluate the link state.
4386 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004387 val64 |= GPIO_INT_REG_LINK_DOWN;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004388 val64 |= GPIO_INT_REG_LINK_UP;
4389 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004390 val64 = readq(&bar0->gpio_int_mask);
4391 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4392 GPIO_INT_MASK_LINK_DOWN);
4393 writeq(val64, &bar0->gpio_int_mask);
Joe Perchesd44570e2009-08-24 17:29:44 +00004394 } else if (val64 & GPIO_INT_REG_LINK_UP) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004395 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004396 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004397 val64 = readq(&bar0->adapter_control);
4398 val64 |= ADAPTER_CNTL_EN;
4399 writeq(val64, &bar0->adapter_control);
4400 val64 |= ADAPTER_LED_ON;
4401 writeq(val64, &bar0->adapter_control);
4402 if (!sp->device_enabled_once)
4403 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004404
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004405 s2io_link(sp, LINK_UP);
4406 /*
4407 * unmask link down interrupt and mask link-up
4408 * intr
4409 */
4410 val64 = readq(&bar0->gpio_int_mask);
4411 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4412 val64 |= GPIO_INT_MASK_LINK_UP;
4413 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004414
Joe Perchesd44570e2009-08-24 17:29:44 +00004415 } else if (val64 & GPIO_INT_REG_LINK_DOWN) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004416 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004417 s2io_link(sp, LINK_DOWN);
4418 /* Link is down so unmaks link up interrupt */
4419 val64 = readq(&bar0->gpio_int_mask);
4420 val64 &= ~GPIO_INT_MASK_LINK_UP;
4421 val64 |= GPIO_INT_MASK_LINK_DOWN;
4422 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004423
4424 /* turn off LED */
4425 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00004426 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004427 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004428 }
4429 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004430 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004431}
4432
Linus Torvalds1da177e2005-04-16 15:20:36 -07004433/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004434 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4435 * @value: alarm bits
4436 * @addr: address value
4437 * @cnt: counter variable
4438 * Description: Check for alarm and increment the counter
4439 * Return Value:
4440 * 1 - if alarm bit set
4441 * 0 - if alarm bit is not set
4442 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004443static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr,
4444 unsigned long long *cnt)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004445{
4446 u64 val64;
4447 val64 = readq(addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00004448 if (val64 & value) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004449 writeq(val64, addr);
4450 (*cnt)++;
4451 return 1;
4452 }
4453 return 0;
4454
4455}
4456
4457/**
4458 * s2io_handle_errors - Xframe error indication handler
4459 * @nic: device private variable
4460 * Description: Handle alarms such as loss of link, single or
4461 * double ECC errors, critical and serious errors.
4462 * Return Value:
4463 * NONE
4464 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004465static void s2io_handle_errors(void *dev_id)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004466{
Joe Perchesd44570e2009-08-24 17:29:44 +00004467 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004468 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004469 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Joe Perchesd44570e2009-08-24 17:29:44 +00004470 u64 temp64 = 0, val64 = 0;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004471 int i = 0;
4472
4473 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4474 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4475
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004476 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004477 return;
4478
4479 if (pci_channel_offline(sp->pdev))
4480 return;
4481
4482 memset(&sw_stat->ring_full_cnt, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00004483 sizeof(sw_stat->ring_full_cnt));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004484
4485 /* Handling the XPAK counters update */
Joe Perchesd44570e2009-08-24 17:29:44 +00004486 if (stats->xpak_timer_count < 72000) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004487 /* waiting for an hour */
4488 stats->xpak_timer_count++;
4489 } else {
4490 s2io_updt_xpak_counter(dev);
4491 /* reset the count to zero */
4492 stats->xpak_timer_count = 0;
4493 }
4494
4495 /* Handling link status change error Intr */
4496 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4497 val64 = readq(&bar0->mac_rmac_err_reg);
4498 writeq(val64, &bar0->mac_rmac_err_reg);
4499 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4500 schedule_work(&sp->set_link_task);
4501 }
4502
4503 /* In case of a serious error, the device will be Reset. */
4504 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
Joe Perchesd44570e2009-08-24 17:29:44 +00004505 &sw_stat->serious_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004506 goto reset;
4507
4508 /* Check for data parity error */
4509 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
Joe Perchesd44570e2009-08-24 17:29:44 +00004510 &sw_stat->parity_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004511 goto reset;
4512
4513 /* Check for ring full counter */
4514 if (sp->device_type == XFRAME_II_DEVICE) {
4515 val64 = readq(&bar0->ring_bump_counter1);
Joe Perchesd44570e2009-08-24 17:29:44 +00004516 for (i = 0; i < 4; i++) {
4517 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004518 temp64 >>= 64 - ((i+1)*16);
4519 sw_stat->ring_full_cnt[i] += temp64;
4520 }
4521
4522 val64 = readq(&bar0->ring_bump_counter2);
Joe Perchesd44570e2009-08-24 17:29:44 +00004523 for (i = 0; i < 4; i++) {
4524 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004525 temp64 >>= 64 - ((i+1)*16);
Joe Perchesd44570e2009-08-24 17:29:44 +00004526 sw_stat->ring_full_cnt[i+4] += temp64;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004527 }
4528 }
4529
4530 val64 = readq(&bar0->txdma_int_status);
4531 /*check for pfc_err*/
4532 if (val64 & TXDMA_PFC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004533 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
4534 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
4535 PFC_PCIX_ERR,
4536 &bar0->pfc_err_reg,
4537 &sw_stat->pfc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004538 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004539 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR,
4540 &bar0->pfc_err_reg,
4541 &sw_stat->pfc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004542 }
4543
4544 /*check for tda_err*/
4545 if (val64 & TXDMA_TDA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004546 if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR |
4547 TDA_SM0_ERR_ALARM |
4548 TDA_SM1_ERR_ALARM,
4549 &bar0->tda_err_reg,
4550 &sw_stat->tda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004551 goto reset;
4552 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004553 &bar0->tda_err_reg,
4554 &sw_stat->tda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004555 }
4556 /*check for pcc_err*/
4557 if (val64 & TXDMA_PCC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004558 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
4559 PCC_N_SERR | PCC_6_COF_OV_ERR |
4560 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
4561 PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR |
4562 PCC_TXB_ECC_DB_ERR,
4563 &bar0->pcc_err_reg,
4564 &sw_stat->pcc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004565 goto reset;
4566 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004567 &bar0->pcc_err_reg,
4568 &sw_stat->pcc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004569 }
4570
4571 /*check for tti_err*/
4572 if (val64 & TXDMA_TTI_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004573 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM,
4574 &bar0->tti_err_reg,
4575 &sw_stat->tti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004576 goto reset;
4577 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004578 &bar0->tti_err_reg,
4579 &sw_stat->tti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004580 }
4581
4582 /*check for lso_err*/
4583 if (val64 & TXDMA_LSO_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004584 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT |
4585 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4586 &bar0->lso_err_reg,
4587 &sw_stat->lso_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004588 goto reset;
4589 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
Joe Perchesd44570e2009-08-24 17:29:44 +00004590 &bar0->lso_err_reg,
4591 &sw_stat->lso_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004592 }
4593
4594 /*check for tpa_err*/
4595 if (val64 & TXDMA_TPA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004596 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM,
4597 &bar0->tpa_err_reg,
4598 &sw_stat->tpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004599 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004600 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP,
4601 &bar0->tpa_err_reg,
4602 &sw_stat->tpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004603 }
4604
4605 /*check for sm_err*/
4606 if (val64 & TXDMA_SM_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004607 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM,
4608 &bar0->sm_err_reg,
4609 &sw_stat->sm_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004610 goto reset;
4611 }
4612
4613 val64 = readq(&bar0->mac_int_status);
4614 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4615 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004616 &bar0->mac_tmac_err_reg,
4617 &sw_stat->mac_tmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004618 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004619 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
4620 TMAC_DESC_ECC_SG_ERR |
4621 TMAC_DESC_ECC_DB_ERR,
4622 &bar0->mac_tmac_err_reg,
4623 &sw_stat->mac_tmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004624 }
4625
4626 val64 = readq(&bar0->xgxs_int_status);
4627 if (val64 & XGXS_INT_STATUS_TXGXS) {
4628 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004629 &bar0->xgxs_txgxs_err_reg,
4630 &sw_stat->xgxs_txgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004631 goto reset;
4632 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_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 }
4636
4637 val64 = readq(&bar0->rxdma_int_status);
4638 if (val64 & RXDMA_INT_RC_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004639 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR |
4640 RC_FTC_ECC_DB_ERR |
4641 RC_PRCn_SM_ERR_ALARM |
4642 RC_FTC_SM_ERR_ALARM,
4643 &bar0->rc_err_reg,
4644 &sw_stat->rc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004645 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004646 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR |
4647 RC_FTC_ECC_SG_ERR |
4648 RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4649 &sw_stat->rc_err_cnt);
4650 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn |
4651 PRC_PCI_AB_WR_Rn |
4652 PRC_PCI_AB_F_WR_Rn,
4653 &bar0->prc_pcix_err_reg,
4654 &sw_stat->prc_pcix_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004655 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004656 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn |
4657 PRC_PCI_DP_WR_Rn |
4658 PRC_PCI_DP_F_WR_Rn,
4659 &bar0->prc_pcix_err_reg,
4660 &sw_stat->prc_pcix_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004661 }
4662
4663 if (val64 & RXDMA_INT_RPA_INT_M) {
4664 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004665 &bar0->rpa_err_reg,
4666 &sw_stat->rpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004667 goto reset;
4668 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_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 }
4672
4673 if (val64 & RXDMA_INT_RDA_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004674 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR |
4675 RDA_FRM_ECC_DB_N_AERR |
4676 RDA_SM1_ERR_ALARM |
4677 RDA_SM0_ERR_ALARM |
4678 RDA_RXD_ECC_DB_SERR,
4679 &bar0->rda_err_reg,
4680 &sw_stat->rda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004681 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004682 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR |
4683 RDA_FRM_ECC_SG_ERR |
4684 RDA_MISC_ERR |
4685 RDA_PCIX_ERR,
4686 &bar0->rda_err_reg,
4687 &sw_stat->rda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004688 }
4689
4690 if (val64 & RXDMA_INT_RTI_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004691 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM,
4692 &bar0->rti_err_reg,
4693 &sw_stat->rti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004694 goto reset;
4695 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004696 &bar0->rti_err_reg,
4697 &sw_stat->rti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004698 }
4699
4700 val64 = readq(&bar0->mac_int_status);
4701 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4702 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004703 &bar0->mac_rmac_err_reg,
4704 &sw_stat->mac_rmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004705 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004706 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT |
4707 RMAC_SINGLE_ECC_ERR |
4708 RMAC_DOUBLE_ECC_ERR,
4709 &bar0->mac_rmac_err_reg,
4710 &sw_stat->mac_rmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004711 }
4712
4713 val64 = readq(&bar0->xgxs_int_status);
4714 if (val64 & XGXS_INT_STATUS_RXGXS) {
4715 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004716 &bar0->xgxs_rxgxs_err_reg,
4717 &sw_stat->xgxs_rxgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004718 goto reset;
4719 }
4720
4721 val64 = readq(&bar0->mc_int_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004722 if (val64 & MC_INT_STATUS_MC_INT) {
4723 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR,
4724 &bar0->mc_err_reg,
4725 &sw_stat->mc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004726 goto reset;
4727
4728 /* Handling Ecc errors */
4729 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4730 writeq(val64, &bar0->mc_err_reg);
4731 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4732 sw_stat->double_ecc_errs++;
4733 if (sp->device_type != XFRAME_II_DEVICE) {
4734 /*
4735 * Reset XframeI only if critical error
4736 */
4737 if (val64 &
Joe Perchesd44570e2009-08-24 17:29:44 +00004738 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4739 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4740 goto reset;
4741 }
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004742 } else
4743 sw_stat->single_ecc_errs++;
4744 }
4745 }
4746 return;
4747
4748reset:
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004749 s2io_stop_all_tx_queue(sp);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004750 schedule_work(&sp->rst_timer_task);
4751 sw_stat->soft_reset_cnt++;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004752}
4753
4754/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004755 * s2io_isr - ISR handler of the device .
4756 * @irq: the irq of the device.
4757 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004758 * Description: This function is the ISR handler of the device. It
4759 * identifies the reason for the interrupt and calls the relevant
4760 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004761 * recv buffers, if their numbers are below the panic value which is
4762 * presently set to 25% of the original number of rcv buffers allocated.
4763 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004764 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004765 * IRQ_NONE: will be returned if interrupt is not from our device
4766 */
David Howells7d12e782006-10-05 14:55:46 +01004767static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004768{
Joe Perchesd44570e2009-08-24 17:29:44 +00004769 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004770 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004771 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004772 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004773 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004774 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004775 struct config_param *config;
4776
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004777 /* Pretend we handled any irq's from a disconnected card */
4778 if (pci_channel_offline(sp->pdev))
4779 return IRQ_NONE;
4780
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004781 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004782 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004783
Linus Torvalds1da177e2005-04-16 15:20:36 -07004784 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00004785 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004786
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004787 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004788 * Identify the cause for interrupt and call the appropriate
4789 * interrupt handler. Causes for the interrupt could be;
4790 * 1. Rx of packet.
4791 * 2. Tx complete.
4792 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004793 */
4794 reason = readq(&bar0->general_int_status);
4795
Joe Perchesd44570e2009-08-24 17:29:44 +00004796 if (unlikely(reason == S2IO_MINUS_ONE))
4797 return IRQ_HANDLED; /* Nothing much can be done. Get out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004798
Joe Perchesd44570e2009-08-24 17:29:44 +00004799 if (reason &
4800 (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004801 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4802
4803 if (config->napi) {
4804 if (reason & GEN_INTR_RXTRAFFIC) {
Ben Hutchings288379f2009-01-19 16:43:59 -08004805 napi_schedule(&sp->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004806 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
4807 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
4808 readl(&bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004809 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004810 } else {
4811 /*
4812 * rx_traffic_int reg is an R1 register, writing all 1's
4813 * will ensure that the actual interrupt causing bit
4814 * get's cleared and hence a read can be avoided.
4815 */
4816 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004817 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004818
Joe Perches13d866a2009-08-24 17:29:41 +00004819 for (i = 0; i < config->rx_ring_num; i++) {
4820 struct ring_info *ring = &mac_control->rings[i];
4821
4822 rx_intr_handler(ring, 0);
4823 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004824 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004825
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004826 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004827 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004828 * will ensure that the actual interrupt causing bit get's
4829 * cleared and hence a read can be avoided.
4830 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004831 if (reason & GEN_INTR_TXTRAFFIC)
4832 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004833
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004834 for (i = 0; i < config->tx_fifo_num; i++)
4835 tx_intr_handler(&mac_control->fifos[i]);
4836
4837 if (reason & GEN_INTR_TXPIC)
4838 s2io_txpic_intr_handle(sp);
4839
4840 /*
4841 * Reallocate the buffers from the interrupt handler itself.
4842 */
4843 if (!config->napi) {
Joe Perches13d866a2009-08-24 17:29:41 +00004844 for (i = 0; i < config->rx_ring_num; i++) {
4845 struct ring_info *ring = &mac_control->rings[i];
4846
4847 s2io_chk_rx_buffers(sp, ring);
4848 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004849 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004850 writeq(sp->general_int_mask, &bar0->general_int_mask);
4851 readl(&bar0->general_int_status);
4852
4853 return IRQ_HANDLED;
4854
Joe Perchesd44570e2009-08-24 17:29:44 +00004855 } else if (!reason) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004856 /* The interrupt was not raised by us */
4857 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004858 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004859
Linus Torvalds1da177e2005-04-16 15:20:36 -07004860 return IRQ_HANDLED;
4861}
4862
4863/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004864 * s2io_updt_stats -
4865 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004866static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004867{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004868 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004869 u64 val64;
4870 int cnt = 0;
4871
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004872 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004873 /* Apprx 30us on a 133 MHz bus */
4874 val64 = SET_UPDT_CLICKS(10) |
4875 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4876 writeq(val64, &bar0->stat_cfg);
4877 do {
4878 udelay(100);
4879 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004880 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004881 break;
4882 cnt++;
4883 if (cnt == 5)
4884 break; /* Updt failed */
Joe Perchesd44570e2009-08-24 17:29:44 +00004885 } while (1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004886 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004887}
4888
4889/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004890 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004891 * @dev : pointer to the device structure.
4892 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004893 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004894 * structure and returns a pointer to the same.
4895 * Return value:
4896 * pointer to the updated net_device_stats structure.
4897 */
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004898static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004899{
Wang Chen4cf16532008-11-12 23:38:14 -08004900 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00004901 struct mac_info *mac_control = &sp->mac_control;
4902 struct stat_block *stats = mac_control->stats_info;
Jon Mason4a490432010-07-02 09:13:49 +00004903 u64 delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004904
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004905 /* Configure Stats for immediate updt */
4906 s2io_updt_stats(sp);
4907
Jon Mason4a490432010-07-02 09:13:49 +00004908 /* A device reset will cause the on-adapter statistics to be zero'ed.
4909 * This can be done while running by changing the MTU. To prevent the
4910 * system from having the stats zero'ed, the driver keeps a copy of the
4911 * last update to the system (which is also zero'ed on reset). This
4912 * enables the driver to accurately know the delta between the last
4913 * update and the current update.
4914 */
4915 delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
4916 le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets;
4917 sp->stats.rx_packets += delta;
4918 dev->stats.rx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004919
Jon Mason4a490432010-07-02 09:13:49 +00004920 delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 |
4921 le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets;
4922 sp->stats.tx_packets += delta;
4923 dev->stats.tx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004924
Jon Mason4a490432010-07-02 09:13:49 +00004925 delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
4926 le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes;
4927 sp->stats.rx_bytes += delta;
4928 dev->stats.rx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004929
Jon Mason4a490432010-07-02 09:13:49 +00004930 delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
4931 le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes;
4932 sp->stats.tx_bytes += delta;
4933 dev->stats.tx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004934
Jon Mason4a490432010-07-02 09:13:49 +00004935 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors;
4936 sp->stats.rx_errors += delta;
4937 dev->stats.rx_errors += delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004938
Jon Mason4a490432010-07-02 09:13:49 +00004939 delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
4940 le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors;
4941 sp->stats.tx_errors += delta;
4942 dev->stats.tx_errors += delta;
Joe Perches13d866a2009-08-24 17:29:41 +00004943
Jon Mason4a490432010-07-02 09:13:49 +00004944 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped;
4945 sp->stats.rx_dropped += delta;
4946 dev->stats.rx_dropped += delta;
4947
4948 delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped;
4949 sp->stats.tx_dropped += delta;
4950 dev->stats.tx_dropped += delta;
4951
4952 /* The adapter MAC interprets pause frames as multicast packets, but
4953 * does not pass them up. This erroneously increases the multicast
4954 * packet count and needs to be deducted when the multicast frame count
4955 * is queried.
4956 */
4957 delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
4958 le32_to_cpu(stats->rmac_vld_mcst_frms);
4959 delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms);
4960 delta -= sp->stats.multicast;
4961 sp->stats.multicast += delta;
4962 dev->stats.multicast += delta;
4963
4964 delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
4965 le32_to_cpu(stats->rmac_usized_frms)) +
4966 le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors;
4967 sp->stats.rx_length_errors += delta;
4968 dev->stats.rx_length_errors += delta;
4969
4970 delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors;
4971 sp->stats.rx_crc_errors += delta;
4972 dev->stats.rx_crc_errors += delta;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004973
Joe Perchesd44570e2009-08-24 17:29:44 +00004974 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004975}
4976
4977/**
4978 * s2io_set_multicast - entry point for multicast address enable/disable.
4979 * @dev : pointer to the device structure
4980 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004981 * This function is a driver entry point which gets called by the kernel
4982 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004983 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4984 * determine, if multicast address must be enabled or if promiscuous mode
4985 * is to be disabled etc.
4986 * Return value:
4987 * void.
4988 */
4989
4990static void s2io_set_multicast(struct net_device *dev)
4991{
4992 int i, j, prev_cnt;
Jiri Pirko22bedad32010-04-01 21:22:57 +00004993 struct netdev_hw_addr *ha;
Wang Chen4cf16532008-11-12 23:38:14 -08004994 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004995 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004996 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
Joe Perchesd44570e2009-08-24 17:29:44 +00004997 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004998 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004999 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005000 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005001
5002 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
5003 /* Enable all Multicast addresses */
5004 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
5005 &bar0->rmac_addr_data0_mem);
5006 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
5007 &bar0->rmac_addr_data1_mem);
5008 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005009 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5010 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005011 writeq(val64, &bar0->rmac_addr_cmd_mem);
5012 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005013 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005014 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5015 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005016
5017 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005018 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005019 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
5020 /* Disable all Multicast addresses */
5021 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5022 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07005023 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
5024 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005025 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005026 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5027 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005028 writeq(val64, &bar0->rmac_addr_cmd_mem);
5029 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005030 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005031 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5032 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005033
5034 sp->m_cast_flg = 0;
5035 sp->all_multi_pos = 0;
5036 }
5037
5038 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
5039 /* Put the NIC into promiscuous mode */
5040 add = &bar0->mac_cfg;
5041 val64 = readq(&bar0->mac_cfg);
5042 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
5043
5044 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005045 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005046 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5047 writel((u32) (val64 >> 32), (add + 4));
5048
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005049 if (vlan_tag_strip != 1) {
5050 val64 = readq(&bar0->rx_pa_cfg);
5051 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
5052 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005053 sp->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005054 }
5055
Linus Torvalds1da177e2005-04-16 15:20:36 -07005056 val64 = readq(&bar0->mac_cfg);
5057 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07005058 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005059 dev->name);
5060 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
5061 /* Remove the NIC from promiscuous mode */
5062 add = &bar0->mac_cfg;
5063 val64 = readq(&bar0->mac_cfg);
5064 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
5065
5066 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005067 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005068 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5069 writel((u32) (val64 >> 32), (add + 4));
5070
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005071 if (vlan_tag_strip != 0) {
5072 val64 = readq(&bar0->rx_pa_cfg);
5073 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
5074 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005075 sp->vlan_strip_flag = 1;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005076 }
5077
Linus Torvalds1da177e2005-04-16 15:20:36 -07005078 val64 = readq(&bar0->mac_cfg);
5079 sp->promisc_flg = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005080 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005081 }
5082
5083 /* Update individual M_CAST address list */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005084 if ((!sp->m_cast_flg) && netdev_mc_count(dev)) {
5085 if (netdev_mc_count(dev) >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005086 (config->max_mc_addr - config->max_mac_addr)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005087 DBG_PRINT(ERR_DBG,
5088 "%s: No more Rx filters can be added - "
5089 "please enable ALL_MULTI instead\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005090 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005091 return;
5092 }
5093
5094 prev_cnt = sp->mc_addr_count;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005095 sp->mc_addr_count = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005096
5097 /* Clear out the previous list of Mc in the H/W. */
5098 for (i = 0; i < prev_cnt; i++) {
5099 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5100 &bar0->rmac_addr_data0_mem);
5101 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005102 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005103 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005104 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5105 RMAC_ADDR_CMD_MEM_OFFSET
5106 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005107 writeq(val64, &bar0->rmac_addr_cmd_mem);
5108
5109 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005110 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005111 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5112 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005113 DBG_PRINT(ERR_DBG,
5114 "%s: Adding Multicasts failed\n",
5115 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005116 return;
5117 }
5118 }
5119
5120 /* Create the new Rx filter list and update the same in H/W. */
Jiri Pirko55085902010-02-18 00:42:54 +00005121 i = 0;
Jiri Pirko22bedad32010-04-01 21:22:57 +00005122 netdev_for_each_mc_addr(ha, dev) {
Jeff Garzika7a80d52006-03-04 12:06:51 -05005123 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005124 for (j = 0; j < ETH_ALEN; j++) {
Jiri Pirko22bedad32010-04-01 21:22:57 +00005125 mac_addr |= ha->addr[j];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005126 mac_addr <<= 8;
5127 }
5128 mac_addr >>= 8;
5129 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
5130 &bar0->rmac_addr_data0_mem);
5131 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005132 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005133 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005134 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5135 RMAC_ADDR_CMD_MEM_OFFSET
5136 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005137 writeq(val64, &bar0->rmac_addr_cmd_mem);
5138
5139 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005140 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005141 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5142 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005143 DBG_PRINT(ERR_DBG,
5144 "%s: Adding Multicasts failed\n",
5145 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005146 return;
5147 }
Jiri Pirko55085902010-02-18 00:42:54 +00005148 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005149 }
5150 }
5151}
5152
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005153/* read from CAM unicast & multicast addresses and store it in
5154 * def_mac_addr structure
5155 */
Hannes Ederdac499f2008-12-25 23:56:45 -08005156static void do_s2io_store_unicast_mc(struct s2io_nic *sp)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005157{
5158 int offset;
5159 u64 mac_addr = 0x0;
5160 struct config_param *config = &sp->config;
5161
5162 /* store unicast & multicast mac addresses */
5163 for (offset = 0; offset < config->max_mc_addr; offset++) {
5164 mac_addr = do_s2io_read_unicast_mc(sp, offset);
5165 /* if read fails disable the entry */
5166 if (mac_addr == FAILURE)
5167 mac_addr = S2IO_DISABLE_MAC_ENTRY;
5168 do_s2io_copy_mac_addr(sp, offset, mac_addr);
5169 }
5170}
5171
5172/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
5173static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
5174{
5175 int offset;
5176 struct config_param *config = &sp->config;
5177 /* restore unicast mac address */
5178 for (offset = 0; offset < config->max_mac_addr; offset++)
5179 do_s2io_prog_unicast(sp->dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005180 sp->def_mac_addr[offset].mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005181
5182 /* restore multicast mac address */
5183 for (offset = config->mc_start_offset;
Joe Perchesd44570e2009-08-24 17:29:44 +00005184 offset < config->max_mc_addr; offset++)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005185 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
5186}
5187
5188/* add a multicast MAC address to CAM */
5189static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
5190{
5191 int i;
5192 u64 mac_addr = 0;
5193 struct config_param *config = &sp->config;
5194
5195 for (i = 0; i < ETH_ALEN; i++) {
5196 mac_addr <<= 8;
5197 mac_addr |= addr[i];
5198 }
5199 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
5200 return SUCCESS;
5201
5202 /* check if the multicast mac already preset in CAM */
5203 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
5204 u64 tmp64;
5205 tmp64 = do_s2io_read_unicast_mc(sp, i);
5206 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5207 break;
5208
5209 if (tmp64 == mac_addr)
5210 return SUCCESS;
5211 }
5212 if (i == config->max_mc_addr) {
5213 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005214 "CAM full no space left for multicast MAC\n");
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005215 return FAILURE;
5216 }
5217 /* Update the internal structure with this new mac address */
5218 do_s2io_copy_mac_addr(sp, i, mac_addr);
5219
Joe Perchesd44570e2009-08-24 17:29:44 +00005220 return do_s2io_add_mac(sp, mac_addr, i);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005221}
5222
5223/* add MAC address to CAM */
5224static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005225{
5226 u64 val64;
5227 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5228
5229 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
Joe Perchesd44570e2009-08-24 17:29:44 +00005230 &bar0->rmac_addr_data0_mem);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005231
Joe Perchesd44570e2009-08-24 17:29:44 +00005232 val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005233 RMAC_ADDR_CMD_MEM_OFFSET(off);
5234 writeq(val64, &bar0->rmac_addr_cmd_mem);
5235
5236 /* Wait till command completes */
5237 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005238 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5239 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005240 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005241 return FAILURE;
5242 }
5243 return SUCCESS;
5244}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005245/* deletes a specified unicast/multicast mac entry from CAM */
5246static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5247{
5248 int offset;
5249 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5250 struct config_param *config = &sp->config;
5251
5252 for (offset = 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00005253 offset < config->max_mc_addr; offset++) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005254 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5255 if (tmp64 == addr) {
5256 /* disable the entry by writing 0xffffffffffffULL */
5257 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5258 return FAILURE;
5259 /* store the new mac list from CAM */
5260 do_s2io_store_unicast_mc(sp);
5261 return SUCCESS;
5262 }
5263 }
5264 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00005265 (unsigned long long)addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005266 return FAILURE;
5267}
5268
5269/* read mac entries from CAM */
5270static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5271{
5272 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5273 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5274
5275 /* read mac addr */
Joe Perchesd44570e2009-08-24 17:29:44 +00005276 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005277 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5278 writeq(val64, &bar0->rmac_addr_cmd_mem);
5279
5280 /* Wait till command completes */
5281 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005282 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5283 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005284 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5285 return FAILURE;
5286 }
5287 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00005288
5289 return tmp64 >> 16;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005290}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005291
Linus Torvalds1da177e2005-04-16 15:20:36 -07005292/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005293 * s2io_set_mac_addr driver entry point
5294 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005295
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005296static int s2io_set_mac_addr(struct net_device *dev, void *p)
5297{
5298 struct sockaddr *addr = p;
5299
5300 if (!is_valid_ether_addr(addr->sa_data))
5301 return -EINVAL;
5302
5303 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5304
5305 /* store the MAC address in CAM */
Joe Perchesd44570e2009-08-24 17:29:44 +00005306 return do_s2io_prog_unicast(dev, dev->dev_addr);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005307}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005308/**
5309 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005310 * @dev : pointer to the device structure.
5311 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005312 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005313 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005314 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005315 * as defined in errno.h file on failure.
5316 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005317
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005318static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005319{
Wang Chen4cf16532008-11-12 23:38:14 -08005320 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005321 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005322 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005323 u64 tmp64;
5324 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005325
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005326 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00005327 * Set the new MAC address as the new unicast filter and reflect this
5328 * change on the device address registered with the OS. It will be
5329 * at offset 0.
5330 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005331 for (i = 0; i < ETH_ALEN; i++) {
5332 mac_addr <<= 8;
5333 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005334 perm_addr <<= 8;
5335 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005336 }
5337
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005338 /* check if the dev_addr is different than perm_addr */
5339 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005340 return SUCCESS;
5341
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005342 /* check if the mac already preset in CAM */
5343 for (i = 1; i < config->max_mac_addr; i++) {
5344 tmp64 = do_s2io_read_unicast_mc(sp, i);
5345 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5346 break;
5347
5348 if (tmp64 == mac_addr) {
5349 DBG_PRINT(INFO_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005350 "MAC addr:0x%llx already present in CAM\n",
5351 (unsigned long long)mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005352 return SUCCESS;
5353 }
5354 }
5355 if (i == config->max_mac_addr) {
5356 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5357 return FAILURE;
5358 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005359 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005360 do_s2io_copy_mac_addr(sp, i, mac_addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00005361
5362 return do_s2io_add_mac(sp, mac_addr, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005363}
5364
5365/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005366 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005367 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5368 * @info: pointer to the structure with parameters given by ethtool to set
5369 * link information.
5370 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005371 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005372 * the NIC.
5373 * Return value:
5374 * 0 on success.
Joe Perchesd44570e2009-08-24 17:29:44 +00005375 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005376
5377static int s2io_ethtool_sset(struct net_device *dev,
5378 struct ethtool_cmd *info)
5379{
Wang Chen4cf16532008-11-12 23:38:14 -08005380 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005381 if ((info->autoneg == AUTONEG_ENABLE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005382 (info->speed != SPEED_10000) ||
5383 (info->duplex != DUPLEX_FULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005384 return -EINVAL;
5385 else {
5386 s2io_close(sp->dev);
5387 s2io_open(sp->dev);
5388 }
5389
5390 return 0;
5391}
5392
5393/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005394 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005395 * @sp : private member of the device structure, pointer to the
5396 * s2io_nic structure.
5397 * @info : pointer to the structure with parameters given by ethtool
5398 * to return link information.
5399 * Description:
5400 * Returns link specific information like speed, duplex etc.. to ethtool.
5401 * Return value :
5402 * return 0 on success.
5403 */
5404
5405static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5406{
Wang Chen4cf16532008-11-12 23:38:14 -08005407 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005408 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5409 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5410 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005411
5412 /* info->transceiver */
5413 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005414
5415 if (netif_carrier_ok(sp->dev)) {
5416 info->speed = 10000;
5417 info->duplex = DUPLEX_FULL;
5418 } else {
5419 info->speed = -1;
5420 info->duplex = -1;
5421 }
5422
5423 info->autoneg = AUTONEG_DISABLE;
5424 return 0;
5425}
5426
5427/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005428 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5429 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005430 * s2io_nic structure.
5431 * @info : pointer to the structure with parameters given by ethtool to
5432 * return driver information.
5433 * Description:
5434 * Returns driver specefic information like name, version etc.. to ethtool.
5435 * Return value:
5436 * void
5437 */
5438
5439static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5440 struct ethtool_drvinfo *info)
5441{
Wang Chen4cf16532008-11-12 23:38:14 -08005442 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005443
John W. Linvilledbc23092005-09-28 17:50:51 -04005444 strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
5445 strncpy(info->version, s2io_driver_version, sizeof(info->version));
5446 strncpy(info->fw_version, "", sizeof(info->fw_version));
5447 strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005448 info->regdump_len = XENA_REG_SPACE;
5449 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005450}
5451
5452/**
5453 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005454 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005455 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005456 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005457 * dumping the registers.
5458 * @reg_space: The input argumnet into which all the registers are dumped.
5459 * Description:
5460 * Dumps the entire register space of xFrame NIC into the user given
5461 * buffer area.
5462 * Return value :
5463 * void .
Joe Perchesd44570e2009-08-24 17:29:44 +00005464 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005465
5466static void s2io_ethtool_gregs(struct net_device *dev,
5467 struct ethtool_regs *regs, void *space)
5468{
5469 int i;
5470 u64 reg;
Joe Perchesd44570e2009-08-24 17:29:44 +00005471 u8 *reg_space = (u8 *)space;
Wang Chen4cf16532008-11-12 23:38:14 -08005472 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005473
5474 regs->len = XENA_REG_SPACE;
5475 regs->version = sp->pdev->subsystem_device;
5476
5477 for (i = 0; i < regs->len; i += 8) {
5478 reg = readq(sp->bar0 + i);
5479 memcpy((reg_space + i), &reg, 8);
5480 }
5481}
5482
5483/**
5484 * s2io_phy_id - timer function that alternates adapter LED.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005485 * @data : address of the private member of the device structure, which
Linus Torvalds1da177e2005-04-16 15:20:36 -07005486 * is a pointer to the s2io_nic structure, provided as an u32.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005487 * Description: This is actually the timer function that alternates the
5488 * adapter LED bit of the adapter control bit to set/reset every time on
5489 * invocation. The timer is set for 1/2 a second, hence tha NIC blinks
Linus Torvalds1da177e2005-04-16 15:20:36 -07005490 * once every second.
Joe Perchesd44570e2009-08-24 17:29:44 +00005491 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005492static void s2io_phy_id(unsigned long data)
5493{
Joe Perchesd44570e2009-08-24 17:29:44 +00005494 struct s2io_nic *sp = (struct s2io_nic *)data;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005495 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005496 u64 val64 = 0;
5497 u16 subid;
5498
5499 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005500 if ((sp->device_type == XFRAME_II_DEVICE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005501 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005502 val64 = readq(&bar0->gpio_control);
5503 val64 ^= GPIO_CTRL_GPIO_0;
5504 writeq(val64, &bar0->gpio_control);
5505 } else {
5506 val64 = readq(&bar0->adapter_control);
5507 val64 ^= ADAPTER_LED_ON;
5508 writeq(val64, &bar0->adapter_control);
5509 }
5510
5511 mod_timer(&sp->id_timer, jiffies + HZ / 2);
5512}
5513
5514/**
5515 * s2io_ethtool_idnic - To physically identify the nic on the system.
5516 * @sp : private member of the device structure, which is a pointer to the
5517 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005518 * @id : pointer to the structure with identification parameters given by
Linus Torvalds1da177e2005-04-16 15:20:36 -07005519 * ethtool.
5520 * Description: Used to physically identify the NIC on the system.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005521 * The Link LED will blink for a time specified by the user for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005522 * identification.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005523 * NOTE: The Link has to be Up to be able to blink the LED. Hence
Linus Torvalds1da177e2005-04-16 15:20:36 -07005524 * identification is possible only if it's link is up.
5525 * Return value:
5526 * int , returns 0 on success
5527 */
5528
5529static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
5530{
5531 u64 val64 = 0, last_gpio_ctrl_val;
Wang Chen4cf16532008-11-12 23:38:14 -08005532 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005533 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005534 u16 subid;
5535
5536 subid = sp->pdev->subsystem_device;
5537 last_gpio_ctrl_val = readq(&bar0->gpio_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00005538 if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005539 val64 = readq(&bar0->adapter_control);
5540 if (!(val64 & ADAPTER_CNTL_EN)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00005541 pr_err("Adapter Link down, cannot blink LED\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005542 return -EFAULT;
5543 }
5544 }
5545 if (sp->id_timer.function == NULL) {
5546 init_timer(&sp->id_timer);
5547 sp->id_timer.function = s2io_phy_id;
Joe Perchesd44570e2009-08-24 17:29:44 +00005548 sp->id_timer.data = (unsigned long)sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005549 }
5550 mod_timer(&sp->id_timer, jiffies);
5551 if (data)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005552 msleep_interruptible(data * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005553 else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005554 msleep_interruptible(MAX_FLICKER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005555 del_timer_sync(&sp->id_timer);
5556
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005557 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005558 writeq(last_gpio_ctrl_val, &bar0->gpio_control);
5559 last_gpio_ctrl_val = readq(&bar0->gpio_control);
5560 }
5561
5562 return 0;
5563}
5564
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005565static void s2io_ethtool_gringparam(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005566 struct ethtool_ringparam *ering)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005567{
Wang Chen4cf16532008-11-12 23:38:14 -08005568 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00005569 int i, tx_desc_count = 0, rx_desc_count = 0;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005570
5571 if (sp->rxd_mode == RXD_MODE_1)
5572 ering->rx_max_pending = MAX_RX_DESC_1;
5573 else if (sp->rxd_mode == RXD_MODE_3B)
5574 ering->rx_max_pending = MAX_RX_DESC_2;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005575
5576 ering->tx_max_pending = MAX_TX_DESC;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005577 for (i = 0 ; i < sp->config.tx_fifo_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005578 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005579
Joe Perches9e39f7c2009-08-25 08:52:00 +00005580 DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds);
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005581 ering->tx_pending = tx_desc_count;
5582 rx_desc_count = 0;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005583 for (i = 0 ; i < sp->config.rx_ring_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005584 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
Veena Paratb6627672007-07-23 02:39:43 -04005585
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005586 ering->rx_pending = rx_desc_count;
5587
5588 ering->rx_mini_max_pending = 0;
5589 ering->rx_mini_pending = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00005590 if (sp->rxd_mode == RXD_MODE_1)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005591 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5592 else if (sp->rxd_mode == RXD_MODE_3B)
5593 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5594 ering->rx_jumbo_pending = rx_desc_count;
5595}
5596
Linus Torvalds1da177e2005-04-16 15:20:36 -07005597/**
5598 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005599 * @sp : private member of the device structure, which is a pointer to the
5600 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005601 * @ep : pointer to the structure with pause parameters given by ethtool.
5602 * Description:
5603 * Returns the Pause frame generation and reception capability of the NIC.
5604 * Return value:
5605 * void
5606 */
5607static void s2io_ethtool_getpause_data(struct net_device *dev,
5608 struct ethtool_pauseparam *ep)
5609{
5610 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005611 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005612 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005613
5614 val64 = readq(&bar0->rmac_pause_cfg);
5615 if (val64 & RMAC_PAUSE_GEN_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005616 ep->tx_pause = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005617 if (val64 & RMAC_PAUSE_RX_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005618 ep->rx_pause = true;
5619 ep->autoneg = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005620}
5621
5622/**
5623 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005624 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005625 * s2io_nic structure.
5626 * @ep : pointer to the structure with pause parameters given by ethtool.
5627 * Description:
5628 * It can be used to set or reset Pause frame generation or reception
5629 * support of the NIC.
5630 * Return value:
5631 * int, returns 0 on Success
5632 */
5633
5634static int s2io_ethtool_setpause_data(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005635 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005636{
5637 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005638 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005639 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005640
5641 val64 = readq(&bar0->rmac_pause_cfg);
5642 if (ep->tx_pause)
5643 val64 |= RMAC_PAUSE_GEN_ENABLE;
5644 else
5645 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5646 if (ep->rx_pause)
5647 val64 |= RMAC_PAUSE_RX_ENABLE;
5648 else
5649 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5650 writeq(val64, &bar0->rmac_pause_cfg);
5651 return 0;
5652}
5653
5654/**
5655 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005656 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005657 * s2io_nic structure.
5658 * @off : offset at which the data must be written
5659 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005660 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005661 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005662 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005663 * read data.
5664 * NOTE: Will allow to read only part of the EEPROM visible through the
5665 * I2C bus.
5666 * Return value:
5667 * -1 on failure and 0 on success.
5668 */
5669
5670#define S2IO_DEV_ID 5
Joe Perchesd44570e2009-08-24 17:29:44 +00005671static int read_eeprom(struct s2io_nic *sp, int off, u64 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005672{
5673 int ret = -1;
5674 u32 exit_cnt = 0;
5675 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005676 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005677
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005678 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005679 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5680 I2C_CONTROL_ADDR(off) |
5681 I2C_CONTROL_BYTE_CNT(0x3) |
5682 I2C_CONTROL_READ |
5683 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005684 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005685
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005686 while (exit_cnt < 5) {
5687 val64 = readq(&bar0->i2c_control);
5688 if (I2C_CONTROL_CNTL_END(val64)) {
5689 *data = I2C_CONTROL_GET_DATA(val64);
5690 ret = 0;
5691 break;
5692 }
5693 msleep(50);
5694 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005695 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005696 }
5697
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005698 if (sp->device_type == XFRAME_II_DEVICE) {
5699 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005700 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005701 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5702 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5703 val64 |= SPI_CONTROL_REQ;
5704 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5705 while (exit_cnt < 5) {
5706 val64 = readq(&bar0->spi_control);
5707 if (val64 & SPI_CONTROL_NACK) {
5708 ret = 1;
5709 break;
5710 } else if (val64 & SPI_CONTROL_DONE) {
5711 *data = readq(&bar0->spi_data);
5712 *data &= 0xffffff;
5713 ret = 0;
5714 break;
5715 }
5716 msleep(50);
5717 exit_cnt++;
5718 }
5719 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005720 return ret;
5721}
5722
5723/**
5724 * write_eeprom - actually writes the relevant part of the data value.
5725 * @sp : private member of the device structure, which is a pointer to the
5726 * s2io_nic structure.
5727 * @off : offset at which the data must be written
5728 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005729 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005730 * the Eeprom. (max of 3)
5731 * Description:
5732 * Actually writes the relevant part of the data value into the Eeprom
5733 * through the I2C bus.
5734 * Return value:
5735 * 0 on success, -1 on failure.
5736 */
5737
Joe Perchesd44570e2009-08-24 17:29:44 +00005738static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005739{
5740 int exit_cnt = 0, ret = -1;
5741 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005742 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005743
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005744 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005745 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5746 I2C_CONTROL_ADDR(off) |
5747 I2C_CONTROL_BYTE_CNT(cnt) |
5748 I2C_CONTROL_SET_DATA((u32)data) |
5749 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005750 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005751
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005752 while (exit_cnt < 5) {
5753 val64 = readq(&bar0->i2c_control);
5754 if (I2C_CONTROL_CNTL_END(val64)) {
5755 if (!(val64 & I2C_CONTROL_NACK))
5756 ret = 0;
5757 break;
5758 }
5759 msleep(50);
5760 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005761 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005762 }
5763
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005764 if (sp->device_type == XFRAME_II_DEVICE) {
5765 int write_cnt = (cnt == 8) ? 0 : cnt;
Joe Perchesd44570e2009-08-24 17:29:44 +00005766 writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005767
5768 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005769 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005770 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5771 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5772 val64 |= SPI_CONTROL_REQ;
5773 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5774 while (exit_cnt < 5) {
5775 val64 = readq(&bar0->spi_control);
5776 if (val64 & SPI_CONTROL_NACK) {
5777 ret = 1;
5778 break;
5779 } else if (val64 & SPI_CONTROL_DONE) {
5780 ret = 0;
5781 break;
5782 }
5783 msleep(50);
5784 exit_cnt++;
5785 }
5786 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005787 return ret;
5788}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005789static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005790{
Ananda Rajub41477f2006-07-24 19:52:49 -04005791 u8 *vpd_data;
5792 u8 data;
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005793 int i = 0, cnt, len, fail = 0;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005794 int vpd_addr = 0x80;
Joe Perchesffb5df62009-08-24 17:29:47 +00005795 struct swStat *swstats = &nic->mac_control.stats_info->sw_stat;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005796
5797 if (nic->device_type == XFRAME_II_DEVICE) {
5798 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5799 vpd_addr = 0x80;
Joe Perchesd44570e2009-08-24 17:29:44 +00005800 } else {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005801 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5802 vpd_addr = 0x50;
5803 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005804 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005805
Ananda Rajub41477f2006-07-24 19:52:49 -04005806 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005807 if (!vpd_data) {
Joe Perchesffb5df62009-08-24 17:29:47 +00005808 swstats->mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005809 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005810 }
Joe Perchesffb5df62009-08-24 17:29:47 +00005811 swstats->mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005812
Joe Perchesd44570e2009-08-24 17:29:44 +00005813 for (i = 0; i < 256; i += 4) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005814 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5815 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5816 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
Joe Perchesd44570e2009-08-24 17:29:44 +00005817 for (cnt = 0; cnt < 5; cnt++) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005818 msleep(2);
5819 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5820 if (data == 0x80)
5821 break;
5822 }
5823 if (cnt >= 5) {
5824 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5825 fail = 1;
5826 break;
5827 }
5828 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5829 (u32 *)&vpd_data[i]);
5830 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005831
Joe Perchesd44570e2009-08-24 17:29:44 +00005832 if (!fail) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005833 /* read serial number of adapter */
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005834 for (cnt = 0; cnt < 252; cnt++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005835 if ((vpd_data[cnt] == 'S') &&
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005836 (vpd_data[cnt+1] == 'N')) {
5837 len = vpd_data[cnt+2];
5838 if (len < min(VPD_STRING_LEN, 256-cnt-2)) {
5839 memcpy(nic->serial_num,
5840 &vpd_data[cnt + 3],
5841 len);
5842 memset(nic->serial_num+len,
5843 0,
5844 VPD_STRING_LEN-len);
5845 break;
5846 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005847 }
5848 }
5849 }
5850
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005851 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
5852 len = vpd_data[1];
5853 memcpy(nic->product_name, &vpd_data[3], len);
5854 nic->product_name[len] = 0;
5855 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005856 kfree(vpd_data);
Joe Perchesffb5df62009-08-24 17:29:47 +00005857 swstats->mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005858}
5859
Linus Torvalds1da177e2005-04-16 15:20:36 -07005860/**
5861 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5862 * @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 -07005863 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005864 * containing all relevant information.
5865 * @data_buf : user defined value to be written into Eeprom.
5866 * Description: Reads the values stored in the Eeprom at given offset
5867 * for a given length. Stores these values int the input argument data
5868 * buffer 'data_buf' and returns these to the caller (ethtool.)
5869 * Return value:
5870 * int 0 on success
5871 */
5872
5873static int s2io_ethtool_geeprom(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005874 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005875{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005876 u32 i, valid;
5877 u64 data;
Wang Chen4cf16532008-11-12 23:38:14 -08005878 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005879
5880 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5881
5882 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5883 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5884
5885 for (i = 0; i < eeprom->len; i += 4) {
5886 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5887 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5888 return -EFAULT;
5889 }
5890 valid = INV(data);
5891 memcpy((data_buf + i), &valid, 4);
5892 }
5893 return 0;
5894}
5895
5896/**
5897 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5898 * @sp : private member of the device structure, which is a pointer to the
5899 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005900 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005901 * containing all relevant information.
5902 * @data_buf ; user defined value to be written into Eeprom.
5903 * Description:
5904 * Tries to write the user provided value in the Eeprom, at the offset
5905 * given by the user.
5906 * Return value:
5907 * 0 on success, -EFAULT on failure.
5908 */
5909
5910static int s2io_ethtool_seeprom(struct net_device *dev,
5911 struct ethtool_eeprom *eeprom,
Joe Perchesd44570e2009-08-24 17:29:44 +00005912 u8 *data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005913{
5914 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005915 u64 valid = 0, data;
Wang Chen4cf16532008-11-12 23:38:14 -08005916 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005917
5918 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5919 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005920 "ETHTOOL_WRITE_EEPROM Err: "
5921 "Magic value is wrong, it is 0x%x should be 0x%x\n",
5922 (sp->pdev->vendor | (sp->pdev->device << 16)),
5923 eeprom->magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005924 return -EFAULT;
5925 }
5926
5927 while (len) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005928 data = (u32)data_buf[cnt] & 0x000000FF;
5929 if (data)
5930 valid = (u32)(data << 24);
5931 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07005932 valid = data;
5933
5934 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5935 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005936 "ETHTOOL_WRITE_EEPROM Err: "
5937 "Cannot write into the specified offset\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005938 return -EFAULT;
5939 }
5940 cnt++;
5941 len--;
5942 }
5943
5944 return 0;
5945}
5946
5947/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005948 * s2io_register_test - reads and writes into all clock domains.
5949 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005950 * s2io_nic structure.
5951 * @data : variable that returns the result of each of the test conducted b
5952 * by the driver.
5953 * Description:
5954 * Read and write into all clock domains. The NIC has 3 clock domains,
5955 * see that registers in all the three regions are accessible.
5956 * Return value:
5957 * 0 on success.
5958 */
5959
Joe Perchesd44570e2009-08-24 17:29:44 +00005960static int s2io_register_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005961{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005962 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005963 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005964 int fail = 0;
5965
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005966 val64 = readq(&bar0->pif_rd_swapper_fb);
5967 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005968 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005969 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005970 }
5971
5972 val64 = readq(&bar0->rmac_pause_cfg);
5973 if (val64 != 0xc000ffff00000000ULL) {
5974 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005975 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005976 }
5977
5978 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005979 if (sp->device_type == XFRAME_II_DEVICE)
5980 exp_val = 0x0404040404040404ULL;
5981 else
5982 exp_val = 0x0808080808080808ULL;
5983 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005984 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005985 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005986 }
5987
5988 val64 = readq(&bar0->xgxs_efifo_cfg);
5989 if (val64 != 0x000000001923141EULL) {
5990 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005991 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005992 }
5993
5994 val64 = 0x5A5A5A5A5A5A5A5AULL;
5995 writeq(val64, &bar0->xmsi_data);
5996 val64 = readq(&bar0->xmsi_data);
5997 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5998 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005999 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006000 }
6001
6002 val64 = 0xA5A5A5A5A5A5A5A5ULL;
6003 writeq(val64, &bar0->xmsi_data);
6004 val64 = readq(&bar0->xmsi_data);
6005 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
6006 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00006007 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006008 }
6009
6010 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006011 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006012}
6013
6014/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006015 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006016 * @sp : private member of the device structure, which is a pointer to the
6017 * s2io_nic structure.
6018 * @data:variable that returns the result of each of the test conducted by
6019 * the driver.
6020 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006021 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07006022 * register.
6023 * Return value:
6024 * 0 on success.
6025 */
6026
Joe Perchesd44570e2009-08-24 17:29:44 +00006027static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006028{
6029 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006030 u64 ret_data, org_4F0, org_7F0;
6031 u8 saved_4F0 = 0, saved_7F0 = 0;
6032 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006033
6034 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006035 /* Note that SPI interface allows write access to all areas
6036 * of EEPROM. Hence doing all negative testing only for Xframe I.
6037 */
6038 if (sp->device_type == XFRAME_I_DEVICE)
6039 if (!write_eeprom(sp, 0, 0, 3))
6040 fail = 1;
6041
6042 /* Save current values at offsets 0x4F0 and 0x7F0 */
6043 if (!read_eeprom(sp, 0x4F0, &org_4F0))
6044 saved_4F0 = 1;
6045 if (!read_eeprom(sp, 0x7F0, &org_7F0))
6046 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006047
6048 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006049 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006050 fail = 1;
6051 if (read_eeprom(sp, 0x4F0, &ret_data))
6052 fail = 1;
6053
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006054 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006055 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006056 "Data written %llx Data read %llx\n",
6057 dev->name, (unsigned long long)0x12345,
6058 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006059 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006060 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006061
6062 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006063 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006064
6065 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006066 if (sp->device_type == XFRAME_I_DEVICE)
6067 if (!write_eeprom(sp, 0x07C, 0, 3))
6068 fail = 1;
6069
6070 /* Test Write Request at offset 0x7f0 */
6071 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
6072 fail = 1;
6073 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006074 fail = 1;
6075
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006076 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006077 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006078 "Data written %llx Data read %llx\n",
6079 dev->name, (unsigned long long)0x12345,
6080 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006081 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006082 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006083
6084 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006085 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006086
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006087 if (sp->device_type == XFRAME_I_DEVICE) {
6088 /* Test Write Error at offset 0x80 */
6089 if (!write_eeprom(sp, 0x080, 0, 3))
6090 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006091
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006092 /* Test Write Error at offset 0xfc */
6093 if (!write_eeprom(sp, 0x0FC, 0, 3))
6094 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006095
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006096 /* Test Write Error at offset 0x100 */
6097 if (!write_eeprom(sp, 0x100, 0, 3))
6098 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006099
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006100 /* Test Write Error at offset 4ec */
6101 if (!write_eeprom(sp, 0x4EC, 0, 3))
6102 fail = 1;
6103 }
6104
6105 /* Restore values at offsets 0x4F0 and 0x7F0 */
6106 if (saved_4F0)
6107 write_eeprom(sp, 0x4F0, org_4F0, 3);
6108 if (saved_7F0)
6109 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006110
6111 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006112 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113}
6114
6115/**
6116 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006117 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006118 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006119 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07006120 * the driver.
6121 * Description:
6122 * This invokes the MemBist test of the card. We give around
6123 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006124 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006125 * Return value:
6126 * 0 on success and -1 on failure.
6127 */
6128
Joe Perchesd44570e2009-08-24 17:29:44 +00006129static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006130{
6131 u8 bist = 0;
6132 int cnt = 0, ret = -1;
6133
6134 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6135 bist |= PCI_BIST_START;
6136 pci_write_config_word(sp->pdev, PCI_BIST, bist);
6137
6138 while (cnt < 20) {
6139 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6140 if (!(bist & PCI_BIST_START)) {
6141 *data = (bist & PCI_BIST_CODE_MASK);
6142 ret = 0;
6143 break;
6144 }
6145 msleep(100);
6146 cnt++;
6147 }
6148
6149 return ret;
6150}
6151
6152/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006153 * s2io-link_test - verifies the link state of the nic
6154 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006155 * s2io_nic structure.
6156 * @data: variable that returns the result of each of the test conducted by
6157 * the driver.
6158 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006159 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07006160 * argument 'data' appropriately.
6161 * Return value:
6162 * 0 on success.
6163 */
6164
Joe Perchesd44570e2009-08-24 17:29:44 +00006165static int s2io_link_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006166{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006167 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006168 u64 val64;
6169
6170 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00006171 if (!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006172 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04006173 else
6174 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006175
Ananda Rajub41477f2006-07-24 19:52:49 -04006176 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006177}
6178
6179/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006180 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
6181 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006182 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006183 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006184 * conducted by the driver.
6185 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006186 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07006187 * access to the RldRam chip on the NIC.
6188 * Return value:
6189 * 0 on success.
6190 */
6191
Joe Perchesd44570e2009-08-24 17:29:44 +00006192static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006193{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006194 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006195 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006196 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006197
6198 val64 = readq(&bar0->adapter_control);
6199 val64 &= ~ADAPTER_ECC_EN;
6200 writeq(val64, &bar0->adapter_control);
6201
6202 val64 = readq(&bar0->mc_rldram_test_ctrl);
6203 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006204 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006205
6206 val64 = readq(&bar0->mc_rldram_mrs);
6207 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
6208 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6209
6210 val64 |= MC_RLDRAM_MRS_ENABLE;
6211 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6212
6213 while (iteration < 2) {
6214 val64 = 0x55555555aaaa0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006215 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006216 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006217 writeq(val64, &bar0->mc_rldram_test_d0);
6218
6219 val64 = 0xaaaa5a5555550000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006220 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006221 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006222 writeq(val64, &bar0->mc_rldram_test_d1);
6223
6224 val64 = 0x55aaaaaaaa5a0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006225 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006226 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006227 writeq(val64, &bar0->mc_rldram_test_d2);
6228
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006229 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006230 writeq(val64, &bar0->mc_rldram_test_add);
6231
Joe Perchesd44570e2009-08-24 17:29:44 +00006232 val64 = MC_RLDRAM_TEST_MODE |
6233 MC_RLDRAM_TEST_WRITE |
6234 MC_RLDRAM_TEST_GO;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006235 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006236
6237 for (cnt = 0; cnt < 5; cnt++) {
6238 val64 = readq(&bar0->mc_rldram_test_ctrl);
6239 if (val64 & MC_RLDRAM_TEST_DONE)
6240 break;
6241 msleep(200);
6242 }
6243
6244 if (cnt == 5)
6245 break;
6246
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006247 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6248 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006249
6250 for (cnt = 0; cnt < 5; cnt++) {
6251 val64 = readq(&bar0->mc_rldram_test_ctrl);
6252 if (val64 & MC_RLDRAM_TEST_DONE)
6253 break;
6254 msleep(500);
6255 }
6256
6257 if (cnt == 5)
6258 break;
6259
6260 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006261 if (!(val64 & MC_RLDRAM_TEST_PASS))
6262 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006263
6264 iteration++;
6265 }
6266
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006267 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006268
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006269 /* Bring the adapter out of test mode */
6270 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6271
6272 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006273}
6274
6275/**
6276 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6277 * @sp : private member of the device structure, which is a pointer to the
6278 * s2io_nic structure.
6279 * @ethtest : pointer to a ethtool command specific structure that will be
6280 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006281 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006282 * conducted by the driver.
6283 * Description:
6284 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6285 * the health of the card.
6286 * Return value:
6287 * void
6288 */
6289
6290static void s2io_ethtool_test(struct net_device *dev,
6291 struct ethtool_test *ethtest,
Joe Perchesd44570e2009-08-24 17:29:44 +00006292 uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006293{
Wang Chen4cf16532008-11-12 23:38:14 -08006294 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006295 int orig_state = netif_running(sp->dev);
6296
6297 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6298 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006299 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006300 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006301
6302 if (s2io_register_test(sp, &data[0]))
6303 ethtest->flags |= ETH_TEST_FL_FAILED;
6304
6305 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006306
6307 if (s2io_rldram_test(sp, &data[3]))
6308 ethtest->flags |= ETH_TEST_FL_FAILED;
6309
6310 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006311
6312 if (s2io_eeprom_test(sp, &data[1]))
6313 ethtest->flags |= ETH_TEST_FL_FAILED;
6314
6315 if (s2io_bist_test(sp, &data[4]))
6316 ethtest->flags |= ETH_TEST_FL_FAILED;
6317
6318 if (orig_state)
6319 s2io_open(sp->dev);
6320
6321 data[2] = 0;
6322 } else {
6323 /* Online Tests. */
6324 if (!orig_state) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006325 DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006326 dev->name);
6327 data[0] = -1;
6328 data[1] = -1;
6329 data[2] = -1;
6330 data[3] = -1;
6331 data[4] = -1;
6332 }
6333
6334 if (s2io_link_test(sp, &data[2]))
6335 ethtest->flags |= ETH_TEST_FL_FAILED;
6336
6337 data[0] = 0;
6338 data[1] = 0;
6339 data[3] = 0;
6340 data[4] = 0;
6341 }
6342}
6343
6344static void s2io_get_ethtool_stats(struct net_device *dev,
6345 struct ethtool_stats *estats,
Joe Perchesd44570e2009-08-24 17:29:44 +00006346 u64 *tmp_stats)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006347{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006348 int i = 0, k;
Wang Chen4cf16532008-11-12 23:38:14 -08006349 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00006350 struct stat_block *stats = sp->mac_control.stats_info;
6351 struct swStat *swstats = &stats->sw_stat;
6352 struct xpakStat *xstats = &stats->xpak_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006353
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006354 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006355 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006356 (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 |
6357 le32_to_cpu(stats->tmac_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006358 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006359 (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
6360 le32_to_cpu(stats->tmac_data_octets);
6361 tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006362 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006363 (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 |
6364 le32_to_cpu(stats->tmac_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006365 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006366 (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 |
6367 le32_to_cpu(stats->tmac_bcst_frms);
6368 tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006369 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006370 (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 |
6371 le32_to_cpu(stats->tmac_ttl_octets);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006372 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006373 (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 |
6374 le32_to_cpu(stats->tmac_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006375 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006376 (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 |
6377 le32_to_cpu(stats->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006378 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006379 (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
6380 le32_to_cpu(stats->tmac_any_err_frms);
6381 tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets);
6382 tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006383 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006384 (u64)le32_to_cpu(stats->tmac_vld_ip_oflow) << 32 |
6385 le32_to_cpu(stats->tmac_vld_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006386 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006387 (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 |
6388 le32_to_cpu(stats->tmac_drop_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006389 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006390 (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 |
6391 le32_to_cpu(stats->tmac_icmp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006392 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006393 (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 |
6394 le32_to_cpu(stats->tmac_rst_tcp);
6395 tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp);
6396 tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 |
6397 le32_to_cpu(stats->tmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006398 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006399 (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
6400 le32_to_cpu(stats->rmac_vld_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006401 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006402 (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
6403 le32_to_cpu(stats->rmac_data_octets);
6404 tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms);
6405 tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006406 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006407 (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
6408 le32_to_cpu(stats->rmac_vld_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006409 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006410 (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 |
6411 le32_to_cpu(stats->rmac_vld_bcst_frms);
6412 tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms);
6413 tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms);
6414 tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms);
6415 tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms);
6416 tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006417 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006418 (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 |
6419 le32_to_cpu(stats->rmac_ttl_octets);
Joe Perchesd44570e2009-08-24 17:29:44 +00006420 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006421 (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32
6422 | le32_to_cpu(stats->rmac_accepted_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006423 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006424 (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow)
6425 << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006426 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006427 (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 |
6428 le32_to_cpu(stats->rmac_discarded_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006429 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006430 (u64)le32_to_cpu(stats->rmac_drop_events_oflow)
6431 << 32 | le32_to_cpu(stats->rmac_drop_events);
6432 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets);
6433 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006434 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006435 (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
6436 le32_to_cpu(stats->rmac_usized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006437 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006438 (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 |
6439 le32_to_cpu(stats->rmac_osized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006440 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006441 (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 |
6442 le32_to_cpu(stats->rmac_frag_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006443 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006444 (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 |
6445 le32_to_cpu(stats->rmac_jabber_frms);
6446 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms);
6447 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms);
6448 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms);
6449 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms);
6450 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms);
6451 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006452 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006453 (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 |
6454 le32_to_cpu(stats->rmac_ip);
6455 tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets);
6456 tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006457 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006458 (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 |
6459 le32_to_cpu(stats->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006460 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006461 (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 |
6462 le32_to_cpu(stats->rmac_icmp);
6463 tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006464 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006465 (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 |
6466 le32_to_cpu(stats->rmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006467 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006468 (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 |
6469 le32_to_cpu(stats->rmac_err_drp_udp);
6470 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym);
6471 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0);
6472 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1);
6473 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2);
6474 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3);
6475 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4);
6476 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5);
6477 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6);
6478 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7);
6479 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0);
6480 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1);
6481 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2);
6482 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3);
6483 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4);
6484 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5);
6485 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6);
6486 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006487 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006488 (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 |
6489 le32_to_cpu(stats->rmac_pause_cnt);
6490 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt);
6491 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006492 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006493 (u64)le32_to_cpu(stats->rmac_accepted_ip_oflow) << 32 |
6494 le32_to_cpu(stats->rmac_accepted_ip);
6495 tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp);
6496 tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt);
6497 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt);
6498 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt);
6499 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt);
6500 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt);
6501 tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt);
6502 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt);
6503 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt);
6504 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt);
6505 tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt);
6506 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt);
6507 tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt);
6508 tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt);
6509 tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt);
6510 tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt);
6511 tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt);
6512 tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt);
6513 tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006514
6515 /* Enhanced statistics exist only for Hercules */
Joe Perchesd44570e2009-08-24 17:29:44 +00006516 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006517 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006518 le64_to_cpu(stats->rmac_ttl_1519_4095_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006519 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006520 le64_to_cpu(stats->rmac_ttl_4096_8191_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006521 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006522 le64_to_cpu(stats->rmac_ttl_8192_max_frms);
6523 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms);
6524 tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms);
6525 tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms);
6526 tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms);
6527 tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms);
6528 tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard);
6529 tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard);
6530 tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard);
6531 tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard);
6532 tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard);
6533 tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard);
6534 tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard);
6535 tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006536 }
6537
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006538 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006539 tmp_stats[i++] = swstats->single_ecc_errs;
6540 tmp_stats[i++] = swstats->double_ecc_errs;
6541 tmp_stats[i++] = swstats->parity_err_cnt;
6542 tmp_stats[i++] = swstats->serious_err_cnt;
6543 tmp_stats[i++] = swstats->soft_reset_cnt;
6544 tmp_stats[i++] = swstats->fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006545 for (k = 0; k < MAX_RX_RINGS; k++)
Joe Perchesffb5df62009-08-24 17:29:47 +00006546 tmp_stats[i++] = swstats->ring_full_cnt[k];
6547 tmp_stats[i++] = xstats->alarm_transceiver_temp_high;
6548 tmp_stats[i++] = xstats->alarm_transceiver_temp_low;
6549 tmp_stats[i++] = xstats->alarm_laser_bias_current_high;
6550 tmp_stats[i++] = xstats->alarm_laser_bias_current_low;
6551 tmp_stats[i++] = xstats->alarm_laser_output_power_high;
6552 tmp_stats[i++] = xstats->alarm_laser_output_power_low;
6553 tmp_stats[i++] = xstats->warn_transceiver_temp_high;
6554 tmp_stats[i++] = xstats->warn_transceiver_temp_low;
6555 tmp_stats[i++] = xstats->warn_laser_bias_current_high;
6556 tmp_stats[i++] = xstats->warn_laser_bias_current_low;
6557 tmp_stats[i++] = xstats->warn_laser_output_power_high;
6558 tmp_stats[i++] = xstats->warn_laser_output_power_low;
6559 tmp_stats[i++] = swstats->clubbed_frms_cnt;
6560 tmp_stats[i++] = swstats->sending_both;
6561 tmp_stats[i++] = swstats->outof_sequence_pkts;
6562 tmp_stats[i++] = swstats->flush_max_pkts;
6563 if (swstats->num_aggregations) {
6564 u64 tmp = swstats->sum_avg_pkts_aggregated;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006565 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006566 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006567 * Since 64-bit divide does not work on all platforms,
6568 * do repeated subtraction.
6569 */
Joe Perchesffb5df62009-08-24 17:29:47 +00006570 while (tmp >= swstats->num_aggregations) {
6571 tmp -= swstats->num_aggregations;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006572 count++;
6573 }
6574 tmp_stats[i++] = count;
Joe Perchesd44570e2009-08-24 17:29:44 +00006575 } else
Ananda Rajubd1034f2006-04-21 19:20:22 -04006576 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006577 tmp_stats[i++] = swstats->mem_alloc_fail_cnt;
6578 tmp_stats[i++] = swstats->pci_map_fail_cnt;
6579 tmp_stats[i++] = swstats->watchdog_timer_cnt;
6580 tmp_stats[i++] = swstats->mem_allocated;
6581 tmp_stats[i++] = swstats->mem_freed;
6582 tmp_stats[i++] = swstats->link_up_cnt;
6583 tmp_stats[i++] = swstats->link_down_cnt;
6584 tmp_stats[i++] = swstats->link_up_time;
6585 tmp_stats[i++] = swstats->link_down_time;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006586
Joe Perchesffb5df62009-08-24 17:29:47 +00006587 tmp_stats[i++] = swstats->tx_buf_abort_cnt;
6588 tmp_stats[i++] = swstats->tx_desc_abort_cnt;
6589 tmp_stats[i++] = swstats->tx_parity_err_cnt;
6590 tmp_stats[i++] = swstats->tx_link_loss_cnt;
6591 tmp_stats[i++] = swstats->tx_list_proc_err_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006592
Joe Perchesffb5df62009-08-24 17:29:47 +00006593 tmp_stats[i++] = swstats->rx_parity_err_cnt;
6594 tmp_stats[i++] = swstats->rx_abort_cnt;
6595 tmp_stats[i++] = swstats->rx_parity_abort_cnt;
6596 tmp_stats[i++] = swstats->rx_rda_fail_cnt;
6597 tmp_stats[i++] = swstats->rx_unkn_prot_cnt;
6598 tmp_stats[i++] = swstats->rx_fcs_err_cnt;
6599 tmp_stats[i++] = swstats->rx_buf_size_err_cnt;
6600 tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt;
6601 tmp_stats[i++] = swstats->rx_unkn_err_cnt;
6602 tmp_stats[i++] = swstats->tda_err_cnt;
6603 tmp_stats[i++] = swstats->pfc_err_cnt;
6604 tmp_stats[i++] = swstats->pcc_err_cnt;
6605 tmp_stats[i++] = swstats->tti_err_cnt;
6606 tmp_stats[i++] = swstats->tpa_err_cnt;
6607 tmp_stats[i++] = swstats->sm_err_cnt;
6608 tmp_stats[i++] = swstats->lso_err_cnt;
6609 tmp_stats[i++] = swstats->mac_tmac_err_cnt;
6610 tmp_stats[i++] = swstats->mac_rmac_err_cnt;
6611 tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt;
6612 tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt;
6613 tmp_stats[i++] = swstats->rc_err_cnt;
6614 tmp_stats[i++] = swstats->prc_pcix_err_cnt;
6615 tmp_stats[i++] = swstats->rpa_err_cnt;
6616 tmp_stats[i++] = swstats->rda_err_cnt;
6617 tmp_stats[i++] = swstats->rti_err_cnt;
6618 tmp_stats[i++] = swstats->mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006619}
6620
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006621static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006622{
Joe Perchesd44570e2009-08-24 17:29:44 +00006623 return XENA_REG_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006624}
6625
6626
Joe Perchesd44570e2009-08-24 17:29:44 +00006627static u32 s2io_ethtool_get_rx_csum(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006628{
Wang Chen4cf16532008-11-12 23:38:14 -08006629 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006630
Joe Perchesd44570e2009-08-24 17:29:44 +00006631 return sp->rx_csum;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006632}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006633
6634static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006635{
Wang Chen4cf16532008-11-12 23:38:14 -08006636 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006637
6638 if (data)
6639 sp->rx_csum = 1;
6640 else
6641 sp->rx_csum = 0;
6642
6643 return 0;
6644}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006645
6646static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006647{
Joe Perchesd44570e2009-08-24 17:29:44 +00006648 return XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006649}
6650
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006651static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006652{
Wang Chen4cf16532008-11-12 23:38:14 -08006653 struct s2io_nic *sp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006654
6655 switch (sset) {
6656 case ETH_SS_TEST:
6657 return S2IO_TEST_LEN;
6658 case ETH_SS_STATS:
Joe Perchesd44570e2009-08-24 17:29:44 +00006659 switch (sp->device_type) {
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006660 case XFRAME_I_DEVICE:
6661 return XFRAME_I_STAT_LEN;
6662 case XFRAME_II_DEVICE:
6663 return XFRAME_II_STAT_LEN;
6664 default:
6665 return 0;
6666 }
6667 default:
6668 return -EOPNOTSUPP;
6669 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006670}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006671
6672static void s2io_ethtool_get_strings(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006673 u32 stringset, u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006674{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006675 int stat_size = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08006676 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006677
Linus Torvalds1da177e2005-04-16 15:20:36 -07006678 switch (stringset) {
6679 case ETH_SS_TEST:
6680 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6681 break;
6682 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006683 stat_size = sizeof(ethtool_xena_stats_keys);
Joe Perchesd44570e2009-08-24 17:29:44 +00006684 memcpy(data, &ethtool_xena_stats_keys, stat_size);
6685 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006686 memcpy(data + stat_size,
Joe Perchesd44570e2009-08-24 17:29:44 +00006687 &ethtool_enhanced_stats_keys,
6688 sizeof(ethtool_enhanced_stats_keys));
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006689 stat_size += sizeof(ethtool_enhanced_stats_keys);
6690 }
6691
6692 memcpy(data + stat_size, &ethtool_driver_stats_keys,
Joe Perchesd44570e2009-08-24 17:29:44 +00006693 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006694 }
6695}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006696
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006697static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006698{
6699 if (data)
6700 dev->features |= NETIF_F_IP_CSUM;
6701 else
6702 dev->features &= ~NETIF_F_IP_CSUM;
6703
6704 return 0;
6705}
6706
Ananda Raju75c30b12006-07-24 19:55:09 -04006707static u32 s2io_ethtool_op_get_tso(struct net_device *dev)
6708{
6709 return (dev->features & NETIF_F_TSO) != 0;
6710}
Jon Mason958de192010-06-24 18:45:10 +00006711
Ananda Raju75c30b12006-07-24 19:55:09 -04006712static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data)
6713{
6714 if (data)
6715 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
6716 else
6717 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
6718
6719 return 0;
6720}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006721
Jon Mason958de192010-06-24 18:45:10 +00006722static int s2io_ethtool_set_flags(struct net_device *dev, u32 data)
6723{
6724 struct s2io_nic *sp = netdev_priv(dev);
6725 int rc = 0;
6726 int changed = 0;
6727
6728 if (data & ~ETH_FLAG_LRO)
Ben Hutchings97d19352010-06-30 02:46:56 +00006729 return -EINVAL;
Jon Mason958de192010-06-24 18:45:10 +00006730
6731 if (data & ETH_FLAG_LRO) {
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00006732 if (!(dev->features & NETIF_F_LRO)) {
6733 dev->features |= NETIF_F_LRO;
6734 changed = 1;
6735 }
Jon Mason958de192010-06-24 18:45:10 +00006736 } else if (dev->features & NETIF_F_LRO) {
6737 dev->features &= ~NETIF_F_LRO;
6738 changed = 1;
6739 }
6740
6741 if (changed && netif_running(dev)) {
6742 s2io_stop_all_tx_queue(sp);
6743 s2io_card_down(sp);
Jon Mason958de192010-06-24 18:45:10 +00006744 rc = s2io_card_up(sp);
6745 if (rc)
6746 s2io_reset(sp);
6747 else
6748 s2io_start_all_tx_queue(sp);
6749 }
6750
6751 return rc;
6752}
6753
Jeff Garzik7282d492006-09-13 14:30:00 -04006754static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006755 .get_settings = s2io_ethtool_gset,
6756 .set_settings = s2io_ethtool_sset,
6757 .get_drvinfo = s2io_ethtool_gdrvinfo,
6758 .get_regs_len = s2io_ethtool_get_regs_len,
6759 .get_regs = s2io_ethtool_gregs,
6760 .get_link = ethtool_op_get_link,
6761 .get_eeprom_len = s2io_get_eeprom_len,
6762 .get_eeprom = s2io_ethtool_geeprom,
6763 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006764 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006765 .get_pauseparam = s2io_ethtool_getpause_data,
6766 .set_pauseparam = s2io_ethtool_setpause_data,
6767 .get_rx_csum = s2io_ethtool_get_rx_csum,
6768 .set_rx_csum = s2io_ethtool_set_rx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006769 .set_tx_csum = s2io_ethtool_op_set_tx_csum,
Jon Mason958de192010-06-24 18:45:10 +00006770 .set_flags = s2io_ethtool_set_flags,
6771 .get_flags = ethtool_op_get_flags,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006772 .set_sg = ethtool_op_set_sg,
Ananda Raju75c30b12006-07-24 19:55:09 -04006773 .get_tso = s2io_ethtool_op_get_tso,
6774 .set_tso = s2io_ethtool_op_set_tso,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05006775 .set_ufo = ethtool_op_set_ufo,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006776 .self_test = s2io_ethtool_test,
6777 .get_strings = s2io_ethtool_get_strings,
6778 .phys_id = s2io_ethtool_idnic,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006779 .get_ethtool_stats = s2io_get_ethtool_stats,
6780 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006781};
6782
6783/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006784 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006785 * @dev : Device pointer.
6786 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6787 * a proprietary structure used to pass information to the driver.
6788 * @cmd : This is used to distinguish between the different commands that
6789 * can be passed to the IOCTL functions.
6790 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006791 * Currently there are no special functionality supported in IOCTL, hence
6792 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006793 */
6794
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006795static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006796{
6797 return -EOPNOTSUPP;
6798}
6799
6800/**
6801 * s2io_change_mtu - entry point to change MTU size for the device.
6802 * @dev : device pointer.
6803 * @new_mtu : the new MTU size for the device.
6804 * Description: A driver entry point to change MTU size for the device.
6805 * Before changing the MTU the device must be stopped.
6806 * Return value:
6807 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6808 * file on failure.
6809 */
6810
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006811static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006812{
Wang Chen4cf16532008-11-12 23:38:14 -08006813 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006814 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006815
6816 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006817 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006818 return -EPERM;
6819 }
6820
Linus Torvalds1da177e2005-04-16 15:20:36 -07006821 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006822 if (netif_running(dev)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006823 s2io_stop_all_tx_queue(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006824 s2io_card_down(sp);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006825 ret = s2io_card_up(sp);
6826 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006827 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07006828 __func__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006829 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006830 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006831 s2io_wake_all_tx_queue(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006832 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006833 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006834 u64 val64 = new_mtu;
6835
6836 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6837 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006838
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006839 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006840}
6841
6842/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006843 * s2io_set_link - Set the LInk status
6844 * @data: long pointer to device private structue
6845 * Description: Sets the link status for the adapter
6846 */
6847
David Howellsc4028952006-11-22 14:57:56 +00006848static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006849{
Joe Perchesd44570e2009-08-24 17:29:44 +00006850 struct s2io_nic *nic = container_of(work, struct s2io_nic,
6851 set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006852 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006853 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006854 register u64 val64;
6855 u16 subid;
6856
Francois Romieu22747d62007-02-15 23:37:50 +01006857 rtnl_lock();
6858
6859 if (!netif_running(dev))
6860 goto out_unlock;
6861
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006862 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006863 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006864 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006865 }
6866
6867 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006868 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6869 /*
6870 * Allow a small delay for the NICs self initiated
6871 * cleanup to complete.
6872 */
6873 msleep(100);
6874 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006875
6876 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006877 if (LINK_IS_UP(val64)) {
6878 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6879 if (verify_xena_quiescence(nic)) {
6880 val64 = readq(&bar0->adapter_control);
6881 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006882 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006883 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
Joe Perchesd44570e2009-08-24 17:29:44 +00006884 nic->device_type, subid)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006885 val64 = readq(&bar0->gpio_control);
6886 val64 |= GPIO_CTRL_GPIO_0;
6887 writeq(val64, &bar0->gpio_control);
6888 val64 = readq(&bar0->gpio_control);
6889 } else {
6890 val64 |= ADAPTER_LED_ON;
6891 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006892 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00006893 nic->device_enabled_once = true;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006894 } else {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006895 DBG_PRINT(ERR_DBG,
6896 "%s: Error: device is not Quiescent\n",
6897 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006898 s2io_stop_all_tx_queue(nic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006899 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006900 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006901 val64 = readq(&bar0->adapter_control);
6902 val64 |= ADAPTER_LED_ON;
6903 writeq(val64, &bar0->adapter_control);
6904 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006905 } else {
6906 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6907 subid)) {
6908 val64 = readq(&bar0->gpio_control);
6909 val64 &= ~GPIO_CTRL_GPIO_0;
6910 writeq(val64, &bar0->gpio_control);
6911 val64 = readq(&bar0->gpio_control);
6912 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006913 /* turn off LED */
6914 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00006915 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006916 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006917 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006918 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006919 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006920
6921out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006922 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006923}
6924
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006925static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
Joe Perchesd44570e2009-08-24 17:29:44 +00006926 struct buffAdd *ba,
6927 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6928 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006929{
6930 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006931 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006932
6933 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006934 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006935 /* allocate skb */
6936 if (*skb) {
6937 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6938 /*
6939 * As Rx frame are not going to be processed,
6940 * using same mapped address for the Rxd
6941 * buffer pointer
6942 */
Veena Parat6d517a22007-07-23 02:20:51 -04006943 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006944 } else {
6945 *skb = dev_alloc_skb(size);
6946 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006947 DBG_PRINT(INFO_DBG,
6948 "%s: Out of memory to allocate %s\n",
6949 dev->name, "1 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006950 stats->mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006951 return -ENOMEM ;
6952 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006953 stats->mem_allocated += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006954 /* storing the mapped addr in a temp variable
6955 * such it will be used for next rxd whose
6956 * Host Control is NULL
6957 */
Veena Parat6d517a22007-07-23 02:20:51 -04006958 rxdp1->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006959 pci_map_single(sp->pdev, (*skb)->data,
6960 size - NET_IP_ALIGN,
6961 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006962 if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006963 goto memalloc_failed;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006964 rxdp->Host_Control = (unsigned long) (*skb);
6965 }
6966 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006967 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006968 /* Two buffer Mode */
6969 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006970 rxdp3->Buffer2_ptr = *temp2;
6971 rxdp3->Buffer0_ptr = *temp0;
6972 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006973 } else {
6974 *skb = dev_alloc_skb(size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006975 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006976 DBG_PRINT(INFO_DBG,
6977 "%s: Out of memory to allocate %s\n",
6978 dev->name,
6979 "2 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006980 stats->mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006981 return -ENOMEM;
6982 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006983 stats->mem_allocated += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006984 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006985 pci_map_single(sp->pdev, (*skb)->data,
6986 dev->mtu + 4,
6987 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006988 if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006989 goto memalloc_failed;
Veena Parat6d517a22007-07-23 02:20:51 -04006990 rxdp3->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006991 pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
6992 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006993 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006994 rxdp3->Buffer0_ptr)) {
6995 pci_unmap_single(sp->pdev,
6996 (dma_addr_t)rxdp3->Buffer2_ptr,
6997 dev->mtu + 4,
6998 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006999 goto memalloc_failed;
7000 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007001 rxdp->Host_Control = (unsigned long) (*skb);
7002
7003 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04007004 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04007005 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Joe Perchesd44570e2009-08-24 17:29:44 +00007006 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07007007 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00007008 rxdp3->Buffer1_ptr)) {
7009 pci_unmap_single(sp->pdev,
7010 (dma_addr_t)rxdp3->Buffer0_ptr,
7011 BUF0_LEN, PCI_DMA_FROMDEVICE);
7012 pci_unmap_single(sp->pdev,
7013 (dma_addr_t)rxdp3->Buffer2_ptr,
7014 dev->mtu + 4,
7015 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04007016 goto memalloc_failed;
7017 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007018 }
7019 }
7020 return 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007021
7022memalloc_failed:
7023 stats->pci_map_fail_cnt++;
7024 stats->mem_freed += (*skb)->truesize;
7025 dev_kfree_skb(*skb);
7026 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007027}
Veena Parat491abf22007-07-23 02:37:14 -04007028
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007029static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
7030 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04007031{
7032 struct net_device *dev = sp->dev;
7033 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007034 rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007035 } else if (sp->rxd_mode == RXD_MODE_3B) {
7036 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
7037 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
Joe Perchesd44570e2009-08-24 17:29:44 +00007038 rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007039 }
7040}
7041
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007042static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04007043{
7044 int i, j, k, blk_cnt = 0, size;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007045 struct config_param *config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007046 struct mac_info *mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007047 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007048 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007049 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007050 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007051 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
7052
7053 /* Calculate the size based on ring mode */
7054 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
7055 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
7056 if (sp->rxd_mode == RXD_MODE_1)
7057 size += NET_IP_ALIGN;
7058 else if (sp->rxd_mode == RXD_MODE_3B)
7059 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04007060
7061 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007062 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7063 struct ring_info *ring = &mac_control->rings[i];
7064
Joe Perchesd44570e2009-08-24 17:29:44 +00007065 blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007066
7067 for (j = 0; j < blk_cnt; j++) {
7068 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007069 rxdp = ring->rx_blocks[j].rxds[k].virt_addr;
7070 if (sp->rxd_mode == RXD_MODE_3B)
Joe Perches13d866a2009-08-24 17:29:41 +00007071 ba = &ring->ba[j][k];
Joe Perchesd44570e2009-08-24 17:29:44 +00007072 if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,
7073 (u64 *)&temp0_64,
7074 (u64 *)&temp1_64,
7075 (u64 *)&temp2_64,
7076 size) == -ENOMEM) {
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05007077 return 0;
7078 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007079
7080 set_rxd_buffer_size(sp, rxdp, size);
7081 wmb();
7082 /* flip the Ownership bit to Hardware */
7083 rxdp->Control_1 |= RXD_OWN_XENA;
7084 }
7085 }
7086 }
7087 return 0;
7088
7089}
7090
Joe Perchesd44570e2009-08-24 17:29:44 +00007091static int s2io_add_isr(struct s2io_nic *sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007092{
7093 int ret = 0;
7094 struct net_device *dev = sp->dev;
7095 int err = 0;
7096
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007097 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007098 ret = s2io_enable_msi_x(sp);
7099 if (ret) {
7100 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007101 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007102 }
7103
Joe Perchesd44570e2009-08-24 17:29:44 +00007104 /*
7105 * Store the values of the MSIX table in
7106 * the struct s2io_nic structure
7107 */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007108 store_xmsi_data(sp);
7109
7110 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007111 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007112 int i, msix_rx_cnt = 0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007113
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007114 for (i = 0; i < sp->num_entries; i++) {
7115 if (sp->s2io_entries[i].in_use == MSIX_FLG) {
7116 if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007117 MSIX_RING_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007118 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
7119 dev->name, i);
7120 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007121 s2io_msix_ring_handle,
7122 0,
7123 sp->desc[i],
7124 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007125 } else if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007126 MSIX_ALARM_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007127 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
Joe Perchesd44570e2009-08-24 17:29:44 +00007128 dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007129 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007130 s2io_msix_fifo_handle,
7131 0,
7132 sp->desc[i],
7133 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007134
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007135 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007136 /* if either data or addr is zero print it. */
7137 if (!(sp->msix_info[i].addr &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007138 sp->msix_info[i].data)) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007139 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007140 "%s @Addr:0x%llx Data:0x%llx\n",
7141 sp->desc[i],
7142 (unsigned long long)
7143 sp->msix_info[i].addr,
7144 (unsigned long long)
7145 ntohl(sp->msix_info[i].data));
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007146 } else
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007147 msix_rx_cnt++;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007148 if (err) {
7149 remove_msix_isr(sp);
7150
7151 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007152 "%s:MSI-X-%d registration "
7153 "failed\n", dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007154
7155 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007156 "%s: Defaulting to INTA\n",
7157 dev->name);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007158 sp->config.intr_type = INTA;
7159 break;
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007160 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007161 sp->s2io_entries[i].in_use =
7162 MSIX_REGISTERED_SUCCESS;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007163 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007164 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007165 if (!err) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00007166 pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt);
Joe Perches9e39f7c2009-08-25 08:52:00 +00007167 DBG_PRINT(INFO_DBG,
7168 "MSI-X-TX entries enabled through alarm vector\n");
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007169 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007170 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007171 if (sp->config.intr_type == INTA) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007172 err = request_irq((int)sp->pdev->irq, s2io_isr, IRQF_SHARED,
7173 sp->name, dev);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007174 if (err) {
7175 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
7176 dev->name);
7177 return -1;
7178 }
7179 }
7180 return 0;
7181}
Joe Perchesd44570e2009-08-24 17:29:44 +00007182
7183static void s2io_rem_isr(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007184{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007185 if (sp->config.intr_type == MSI_X)
7186 remove_msix_isr(sp);
7187 else
7188 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007189}
7190
Joe Perchesd44570e2009-08-24 17:29:44 +00007191static void do_s2io_card_down(struct s2io_nic *sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007192{
7193 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007194 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007195 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007196 struct config_param *config;
7197 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007198
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007199 if (!is_s2io_card_up(sp))
7200 return;
7201
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007202 del_timer_sync(&sp->alarm_timer);
7203 /* If s2io_set_link task is executing, wait till it completes. */
Joe Perchesd44570e2009-08-24 17:29:44 +00007204 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state)))
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007205 msleep(50);
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007206 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007207
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007208 /* Disable napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007209 if (sp->config.napi) {
7210 int off = 0;
7211 if (config->intr_type == MSI_X) {
7212 for (; off < sp->config.rx_ring_num; off++)
7213 napi_disable(&sp->mac_control.rings[off].napi);
Joe Perchesd44570e2009-08-24 17:29:44 +00007214 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007215 else
7216 napi_disable(&sp->napi);
7217 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007218
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007219 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007220 if (do_io)
7221 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007222
7223 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007224
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007225 /* stop the tx queue, indicate link down */
7226 s2io_link(sp, LINK_DOWN);
7227
Linus Torvalds1da177e2005-04-16 15:20:36 -07007228 /* Check if the device is Quiescent and then Reset the NIC */
Joe Perchesd44570e2009-08-24 17:29:44 +00007229 while (do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007230 /* As per the HW requirement we need to replenish the
7231 * receive buffer to avoid the ring bump. Since there is
7232 * no intention of processing the Rx frame at this pointwe are
7233 * just settting the ownership bit of rxd in Each Rx
7234 * ring to HW and set the appropriate buffer size
7235 * based on the ring mode
7236 */
7237 rxd_owner_bit_reset(sp);
7238
Linus Torvalds1da177e2005-04-16 15:20:36 -07007239 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007240 if (verify_xena_quiescence(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007241 if (verify_pcc_quiescent(sp, sp->device_enabled_once))
7242 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007243 }
7244
7245 msleep(50);
7246 cnt++;
7247 if (cnt == 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007248 DBG_PRINT(ERR_DBG, "Device not Quiescent - "
7249 "adapter status reads 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007250 (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007251 break;
7252 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007253 }
7254 if (do_io)
7255 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007256
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007257 /* Free all Tx buffers */
7258 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007259
7260 /* Free all Rx buffers */
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007261 free_rx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007262
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007263 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007264}
7265
Joe Perchesd44570e2009-08-24 17:29:44 +00007266static void s2io_card_down(struct s2io_nic *sp)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007267{
7268 do_s2io_card_down(sp, 1);
7269}
7270
Joe Perchesd44570e2009-08-24 17:29:44 +00007271static int s2io_card_up(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007272{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007273 int i, ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007274 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007275 struct mac_info *mac_control;
Joe Perchesd44570e2009-08-24 17:29:44 +00007276 struct net_device *dev = (struct net_device *)sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007277 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007278
7279 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007280 ret = init_nic(sp);
7281 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007282 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7283 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007284 if (ret != -EIO)
7285 s2io_reset(sp);
7286 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007287 }
7288
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007289 /*
7290 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007291 * Rx ring and initializing buffers into 30 Rx blocks
7292 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007293 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007294 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007295
7296 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007297 struct ring_info *ring = &mac_control->rings[i];
7298
7299 ring->mtu = dev->mtu;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007300 ring->lro = !!(dev->features & NETIF_F_LRO);
Joe Perches13d866a2009-08-24 17:29:41 +00007301 ret = fill_rx_buffers(sp, ring, 1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007302 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007303 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7304 dev->name);
7305 s2io_reset(sp);
7306 free_rx_buffers(sp);
7307 return -ENOMEM;
7308 }
7309 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
Joe Perches13d866a2009-08-24 17:29:41 +00007310 ring->rx_bufs_left);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007311 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007312
7313 /* Initialise napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007314 if (config->napi) {
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007315 if (config->intr_type == MSI_X) {
7316 for (i = 0; i < sp->config.rx_ring_num; i++)
7317 napi_enable(&sp->mac_control.rings[i].napi);
7318 } else {
7319 napi_enable(&sp->napi);
7320 }
7321 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007322
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007323 /* Maintain the state prior to the open */
7324 if (sp->promisc_flg)
7325 sp->promisc_flg = 0;
7326 if (sp->m_cast_flg) {
7327 sp->m_cast_flg = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007328 sp->all_multi_pos = 0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007329 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007330
7331 /* Setting its receive mode */
7332 s2io_set_multicast(dev);
7333
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007334 if (dev->features & NETIF_F_LRO) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007335 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007336 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
Joe Perchesd44570e2009-08-24 17:29:44 +00007337 /* Check if we can use (if specified) user provided value */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007338 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7339 sp->lro_max_aggr_per_sess = lro_max_pkts;
7340 }
7341
Linus Torvalds1da177e2005-04-16 15:20:36 -07007342 /* Enable Rx Traffic and interrupts on the NIC */
7343 if (start_nic(sp)) {
7344 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007345 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007346 free_rx_buffers(sp);
7347 return -ENODEV;
7348 }
7349
7350 /* Add interrupt service routine */
7351 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007352 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007353 s2io_rem_isr(sp);
7354 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007355 free_rx_buffers(sp);
7356 return -ENODEV;
7357 }
7358
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007359 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7360
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007361 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
7362
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007363 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007364 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007365 if (sp->config.intr_type != INTA) {
7366 interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
7367 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7368 } else {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007369 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007370 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007371 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7372 }
7373
Linus Torvalds1da177e2005-04-16 15:20:36 -07007374 return 0;
7375}
7376
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007377/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007378 * s2io_restart_nic - Resets the NIC.
7379 * @data : long pointer to the device private structure
7380 * Description:
7381 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007382 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007383 * the run time of the watch dog routine which is run holding a
7384 * spin lock.
7385 */
7386
David Howellsc4028952006-11-22 14:57:56 +00007387static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007388{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007389 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007390 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007391
Francois Romieu22747d62007-02-15 23:37:50 +01007392 rtnl_lock();
7393
7394 if (!netif_running(dev))
7395 goto out_unlock;
7396
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007397 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007398 if (s2io_card_up(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007399 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007400 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007401 s2io_wake_all_tx_queue(sp);
Joe Perchesd44570e2009-08-24 17:29:44 +00007402 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007403out_unlock:
7404 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007405}
7406
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007407/**
7408 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007409 * @dev : Pointer to net device structure
7410 * Description:
7411 * This function is triggered if the Tx Queue is stopped
7412 * for a pre-defined amount of time when the Interface is still up.
7413 * If the Interface is jammed in such a situation, the hardware is
7414 * reset (by s2io_close) and restarted again (by s2io_open) to
7415 * overcome any problem that might have been caused in the hardware.
7416 * Return value:
7417 * void
7418 */
7419
7420static void s2io_tx_watchdog(struct net_device *dev)
7421{
Wang Chen4cf16532008-11-12 23:38:14 -08007422 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007423 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007424
7425 if (netif_carrier_ok(dev)) {
Joe Perchesffb5df62009-08-24 17:29:47 +00007426 swstats->watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007427 schedule_work(&sp->rst_timer_task);
Joe Perchesffb5df62009-08-24 17:29:47 +00007428 swstats->soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007429 }
7430}
7431
7432/**
7433 * rx_osm_handler - To perform some OS related operations on SKB.
7434 * @sp: private member of the device structure,pointer to s2io_nic structure.
7435 * @skb : the socket buffer pointer.
7436 * @len : length of the packet
7437 * @cksum : FCS checksum of the frame.
7438 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007439 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007440 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007441 * some OS related operations on the SKB before passing it to the upper
7442 * layers. It mainly checks if the checksum is OK, if so adds it to the
7443 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7444 * to the upper layer. If the checksum is wrong, it increments the Rx
7445 * packet error count, frees the SKB and returns error.
7446 * Return value:
7447 * SUCCESS on success and -1 on failure.
7448 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007449static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007450{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007451 struct s2io_nic *sp = ring_data->nic;
Joe Perchesd44570e2009-08-24 17:29:44 +00007452 struct net_device *dev = (struct net_device *)ring_data->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007453 struct sk_buff *skb = (struct sk_buff *)
Joe Perchesd44570e2009-08-24 17:29:44 +00007454 ((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007455 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007456 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007457 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ingo Molnar2e6a6842008-11-25 16:47:35 -08007458 struct lro *uninitialized_var(lro);
Olaf Heringf9046eb2007-06-19 22:41:10 +02007459 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00007460 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007461
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007462 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007463
Ananda Raju863c11a2006-04-21 19:03:13 -04007464 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007465 /* Check for parity error */
Joe Perchesd44570e2009-08-24 17:29:44 +00007466 if (err & 0x1)
Joe Perchesffb5df62009-08-24 17:29:47 +00007467 swstats->parity_err_cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007468
Olaf Heringf9046eb2007-06-19 22:41:10 +02007469 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00007470 switch (err_mask) {
7471 case 1:
Joe Perchesffb5df62009-08-24 17:29:47 +00007472 swstats->rx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007473 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007474
Joe Perchesd44570e2009-08-24 17:29:44 +00007475 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00007476 swstats->rx_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007477 break;
7478
Joe Perchesd44570e2009-08-24 17:29:44 +00007479 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00007480 swstats->rx_parity_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007481 break;
7482
Joe Perchesd44570e2009-08-24 17:29:44 +00007483 case 4:
Joe Perchesffb5df62009-08-24 17:29:47 +00007484 swstats->rx_rda_fail_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007485 break;
7486
Joe Perchesd44570e2009-08-24 17:29:44 +00007487 case 5:
Joe Perchesffb5df62009-08-24 17:29:47 +00007488 swstats->rx_unkn_prot_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007489 break;
7490
Joe Perchesd44570e2009-08-24 17:29:44 +00007491 case 6:
Joe Perchesffb5df62009-08-24 17:29:47 +00007492 swstats->rx_fcs_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007493 break;
7494
Joe Perchesd44570e2009-08-24 17:29:44 +00007495 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00007496 swstats->rx_buf_size_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007497 break;
7498
Joe Perchesd44570e2009-08-24 17:29:44 +00007499 case 8:
Joe Perchesffb5df62009-08-24 17:29:47 +00007500 swstats->rx_rxd_corrupt_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007501 break;
7502
Joe Perchesd44570e2009-08-24 17:29:44 +00007503 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00007504 swstats->rx_unkn_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007505 break;
7506 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007507 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00007508 * Drop the packet if bad transfer code. Exception being
7509 * 0x5, which could be due to unsupported IPv6 extension header.
7510 * In this case, we let stack handle the packet.
7511 * Note that in this case, since checksum will be incorrect,
7512 * stack will validate the same.
7513 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007514 if (err_mask != 0x5) {
7515 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007516 dev->name, err_mask);
Breno Leitaodc56e6342008-07-22 16:27:20 -03007517 dev->stats.rx_crc_errors++;
Joe Perchesffb5df62009-08-24 17:29:47 +00007518 swstats->mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007519 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007520 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007521 ring_data->rx_bufs_left -= 1;
Ananda Raju863c11a2006-04-21 19:03:13 -04007522 rxdp->Host_Control = 0;
7523 return 0;
7524 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007525 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007526
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007527 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007528 if (sp->rxd_mode == RXD_MODE_1) {
7529 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007530
Ananda Rajuda6971d2005-10-31 16:55:31 -05007531 skb_put(skb, len);
Veena Parat6d517a22007-07-23 02:20:51 -04007532 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007533 int get_block = ring_data->rx_curr_get_info.block_index;
7534 int get_off = ring_data->rx_curr_get_info.offset;
7535 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7536 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7537 unsigned char *buff = skb_push(skb, buf0_len);
7538
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007539 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05007540 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007541 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007542 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007543
Joe Perchesd44570e2009-08-24 17:29:44 +00007544 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
7545 ((!ring_data->lro) ||
7546 (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007547 (sp->rx_csum)) {
7548 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7549 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7550 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7551 /*
7552 * NIC verifies if the Checksum of the received
7553 * frame is Ok or not and accordingly returns
7554 * a flag in the RxD.
7555 */
7556 skb->ip_summed = CHECKSUM_UNNECESSARY;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007557 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007558 u32 tcp_len;
7559 u8 *tcp;
7560 int ret = 0;
7561
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007562 ret = s2io_club_tcp_session(ring_data,
Joe Perchesd44570e2009-08-24 17:29:44 +00007563 skb->data, &tcp,
7564 &tcp_len, &lro,
7565 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007566 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007567 case 3: /* Begin anew */
7568 lro->parent = skb;
7569 goto aggregate;
7570 case 1: /* Aggregate */
7571 lro_append_pkt(sp, lro, skb, tcp_len);
7572 goto aggregate;
7573 case 4: /* Flush session */
7574 lro_append_pkt(sp, lro, skb, tcp_len);
7575 queue_rx_frame(lro->parent,
7576 lro->vlan_tag);
7577 clear_lro_session(lro);
Joe Perchesffb5df62009-08-24 17:29:47 +00007578 swstats->flush_max_pkts++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007579 goto aggregate;
7580 case 2: /* Flush both */
7581 lro->parent->data_len = lro->frags_len;
Joe Perchesffb5df62009-08-24 17:29:47 +00007582 swstats->sending_both++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007583 queue_rx_frame(lro->parent,
7584 lro->vlan_tag);
7585 clear_lro_session(lro);
7586 goto send_up;
7587 case 0: /* sessions exceeded */
7588 case -1: /* non-TCP or not L2 aggregatable */
7589 case 5: /*
7590 * First pkt in session not
7591 * L3/L4 aggregatable
7592 */
7593 break;
7594 default:
7595 DBG_PRINT(ERR_DBG,
7596 "%s: Samadhana!!\n",
7597 __func__);
7598 BUG();
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007599 }
7600 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007601 } else {
7602 /*
7603 * Packet with erroneous checksum, let the
7604 * upper layers deal with it.
7605 */
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007606 skb_checksum_none_assert(skb);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007607 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007608 } else
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007609 skb_checksum_none_assert(skb);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007610
Joe Perchesffb5df62009-08-24 17:29:47 +00007611 swstats->mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007612send_up:
David S. Miller0c8dfc82009-01-27 16:22:32 -08007613 skb_record_rx_queue(skb, ring_no);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007614 queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007615aggregate:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007616 sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007617 return SUCCESS;
7618}
7619
7620/**
7621 * s2io_link - stops/starts the Tx queue.
7622 * @sp : private member of the device structure, which is a pointer to the
7623 * s2io_nic structure.
7624 * @link : inidicates whether link is UP/DOWN.
7625 * Description:
7626 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007627 * status of the NIC is is down or up. This is called by the Alarm
7628 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007629 * Return value:
7630 * void.
7631 */
7632
Joe Perchesd44570e2009-08-24 17:29:44 +00007633static void s2io_link(struct s2io_nic *sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007634{
Joe Perchesd44570e2009-08-24 17:29:44 +00007635 struct net_device *dev = (struct net_device *)sp->dev;
Joe Perchesffb5df62009-08-24 17:29:47 +00007636 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007637
7638 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007639 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007640 if (link == LINK_DOWN) {
7641 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007642 s2io_stop_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007643 netif_carrier_off(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007644 if (swstats->link_up_cnt)
7645 swstats->link_up_time =
7646 jiffies - sp->start_time;
7647 swstats->link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007648 } else {
7649 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Joe Perchesffb5df62009-08-24 17:29:47 +00007650 if (swstats->link_down_cnt)
7651 swstats->link_down_time =
Joe Perchesd44570e2009-08-24 17:29:44 +00007652 jiffies - sp->start_time;
Joe Perchesffb5df62009-08-24 17:29:47 +00007653 swstats->link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007654 netif_carrier_on(dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007655 s2io_wake_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007656 }
7657 }
7658 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007659 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007660}
7661
7662/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007663 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7664 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007665 * s2io_nic structure.
7666 * Description:
7667 * This function initializes a few of the PCI and PCI-X configuration registers
7668 * with recommended values.
7669 * Return value:
7670 * void
7671 */
7672
Joe Perchesd44570e2009-08-24 17:29:44 +00007673static void s2io_init_pci(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007674{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007675 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007676
7677 /* Enable Data Parity Error Recovery in PCI-X command register. */
7678 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007679 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007680 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007681 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007682 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007683 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007684
7685 /* Set the PErr Response bit in PCI command register. */
7686 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7687 pci_write_config_word(sp->pdev, PCI_COMMAND,
7688 (pci_cmd | PCI_COMMAND_PARITY));
7689 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007690}
7691
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007692static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type,
Joe Perchesd44570e2009-08-24 17:29:44 +00007693 u8 *dev_multiq)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007694{
Joe Perchesd44570e2009-08-24 17:29:44 +00007695 if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007696 DBG_PRINT(ERR_DBG, "Requested number of tx fifos "
Joe Perchesd44570e2009-08-24 17:29:44 +00007697 "(%d) not supported\n", tx_fifo_num);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007698
7699 if (tx_fifo_num < 1)
7700 tx_fifo_num = 1;
7701 else
7702 tx_fifo_num = MAX_TX_FIFOS;
7703
Joe Perches9e39f7c2009-08-25 08:52:00 +00007704 DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007705 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007706
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007707 if (multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007708 *dev_multiq = multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007709
7710 if (tx_steering_type && (1 == tx_fifo_num)) {
7711 if (tx_steering_type != TX_DEFAULT_STEERING)
7712 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007713 "Tx steering is not supported with "
Joe Perchesd44570e2009-08-24 17:29:44 +00007714 "one fifo. Disabling Tx steering.\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007715 tx_steering_type = NO_STEERING;
7716 }
7717
7718 if ((tx_steering_type < NO_STEERING) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007719 (tx_steering_type > TX_DEFAULT_STEERING)) {
7720 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007721 "Requested transmit steering not supported\n");
7722 DBG_PRINT(ERR_DBG, "Disabling transmit steering\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007723 tx_steering_type = NO_STEERING;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007724 }
7725
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007726 if (rx_ring_num > MAX_RX_RINGS) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007727 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007728 "Requested number of rx rings not supported\n");
7729 DBG_PRINT(ERR_DBG, "Default to %d rx rings\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007730 MAX_RX_RINGS);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007731 rx_ring_num = MAX_RX_RINGS;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007732 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007733
Veena Parateccb8622007-07-23 02:23:54 -04007734 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007735 DBG_PRINT(ERR_DBG, "Wrong intr_type requested. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007736 "Defaulting to INTA\n");
7737 *dev_intr_type = INTA;
7738 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007739
Ananda Raju9dc737a2006-04-21 19:05:41 -04007740 if ((*dev_intr_type == MSI_X) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007741 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7742 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007743 DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. "
Joe Perchesd44570e2009-08-24 17:29:44 +00007744 "Defaulting to INTA\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007745 *dev_intr_type = INTA;
7746 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007747
Veena Parat6d517a22007-07-23 02:20:51 -04007748 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007749 DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n");
7750 DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007751 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007752 }
7753 return SUCCESS;
7754}
7755
Linus Torvalds1da177e2005-04-16 15:20:36 -07007756/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007757 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7758 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007759 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007760 * Description: The function configures the receive steering to
7761 * desired receive ring.
7762 * Return Value: SUCCESS on success and
7763 * '-1' on failure (endian settings incorrect).
7764 */
7765static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7766{
7767 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7768 register u64 val64 = 0;
7769
7770 if (ds_codepoint > 63)
7771 return FAILURE;
7772
7773 val64 = RTS_DS_MEM_DATA(ring);
7774 writeq(val64, &bar0->rts_ds_mem_data);
7775
7776 val64 = RTS_DS_MEM_CTRL_WE |
7777 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7778 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7779
7780 writeq(val64, &bar0->rts_ds_mem_ctrl);
7781
7782 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
Joe Perchesd44570e2009-08-24 17:29:44 +00007783 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7784 S2IO_BIT_RESET);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007785}
7786
Stephen Hemminger04025092008-11-21 17:28:55 -08007787static const struct net_device_ops s2io_netdev_ops = {
7788 .ndo_open = s2io_open,
7789 .ndo_stop = s2io_close,
7790 .ndo_get_stats = s2io_get_stats,
7791 .ndo_start_xmit = s2io_xmit,
7792 .ndo_validate_addr = eth_validate_addr,
7793 .ndo_set_multicast_list = s2io_set_multicast,
7794 .ndo_do_ioctl = s2io_ioctl,
7795 .ndo_set_mac_address = s2io_set_mac_addr,
7796 .ndo_change_mtu = s2io_change_mtu,
7797 .ndo_vlan_rx_register = s2io_vlan_rx_register,
7798 .ndo_vlan_rx_kill_vid = s2io_vlan_rx_kill_vid,
7799 .ndo_tx_timeout = s2io_tx_watchdog,
7800#ifdef CONFIG_NET_POLL_CONTROLLER
7801 .ndo_poll_controller = s2io_netpoll,
7802#endif
7803};
7804
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007805/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007806 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007807 * @pdev : structure containing the PCI related information of the device.
7808 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7809 * Description:
7810 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007811 * All OS related initialization including memory and device structure and
7812 * initlaization of the device private variable is done. Also the swapper
7813 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007814 * registers of the device.
7815 * Return value:
7816 * returns 0 on success and negative on failure.
7817 */
7818
7819static int __devinit
7820s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7821{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007822 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007823 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007824 int i, j, ret;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007825 int dma_flag = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007826 u32 mac_up, mac_down;
7827 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007828 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007829 u16 subid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007830 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007831 struct mac_info *mac_control;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007832 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007833 u8 dev_intr_type = intr_type;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007834 u8 dev_multiq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007835
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007836 ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq);
7837 if (ret)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007838 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007839
Joe Perchesd44570e2009-08-24 17:29:44 +00007840 ret = pci_enable_device(pdev);
7841 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007842 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007843 "%s: pci_enable_device failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007844 return ret;
7845 }
7846
Yang Hongyang6a355282009-04-06 19:01:13 -07007847 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007848 DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007849 dma_flag = true;
Joe Perchesd44570e2009-08-24 17:29:44 +00007850 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007851 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007852 "Unable to obtain 64bit DMA "
7853 "for consistent allocations\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07007854 pci_disable_device(pdev);
7855 return -ENOMEM;
7856 }
Yang Hongyang284901a2009-04-06 19:01:15 -07007857 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007858 DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007859 } else {
7860 pci_disable_device(pdev);
7861 return -ENOMEM;
7862 }
Joe Perchesd44570e2009-08-24 17:29:44 +00007863 ret = pci_request_regions(pdev, s2io_driver_name);
7864 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007865 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007866 __func__, ret);
Veena Parateccb8622007-07-23 02:23:54 -04007867 pci_disable_device(pdev);
7868 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007869 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007870 if (dev_multiq)
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007871 dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007872 else
David S. Millerb19fa1f2008-07-08 23:14:24 -07007873 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007874 if (dev == NULL) {
7875 DBG_PRINT(ERR_DBG, "Device allocation failed\n");
7876 pci_disable_device(pdev);
7877 pci_release_regions(pdev);
7878 return -ENODEV;
7879 }
7880
7881 pci_set_master(pdev);
7882 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007883 SET_NETDEV_DEV(dev, &pdev->dev);
7884
7885 /* Private member variable initialized to s2io NIC structure */
Wang Chen4cf16532008-11-12 23:38:14 -08007886 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007887 sp->dev = dev;
7888 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007889 sp->high_dma_flag = dma_flag;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007890 sp->device_enabled_once = false;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007891 if (rx_ring_mode == 1)
7892 sp->rxd_mode = RXD_MODE_1;
7893 if (rx_ring_mode == 2)
7894 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007895
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007896 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007897
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007898 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007899 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007900 sp->device_type = XFRAME_II_DEVICE;
7901 else
7902 sp->device_type = XFRAME_I_DEVICE;
7903
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007904
Linus Torvalds1da177e2005-04-16 15:20:36 -07007905 /* Initialize some PCI/PCI-X fields of the NIC. */
7906 s2io_init_pci(sp);
7907
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007908 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007909 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007910 * Most of these parameters can be specified by the user during
7911 * module insertion as they are module loadable parameters. If
7912 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007913 * are initialized with default values.
7914 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007915 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007916 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007917
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007918 config->napi = napi;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007919 config->tx_steering_type = tx_steering_type;
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007920
Linus Torvalds1da177e2005-04-16 15:20:36 -07007921 /* Tx side parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007922 if (config->tx_steering_type == TX_PRIORITY_STEERING)
7923 config->tx_fifo_num = MAX_TX_FIFOS;
7924 else
7925 config->tx_fifo_num = tx_fifo_num;
7926
7927 /* Initialize the fifos used for tx steering */
7928 if (config->tx_fifo_num < 5) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007929 if (config->tx_fifo_num == 1)
7930 sp->total_tcp_fifos = 1;
7931 else
7932 sp->total_tcp_fifos = config->tx_fifo_num - 1;
7933 sp->udp_fifo_idx = config->tx_fifo_num - 1;
7934 sp->total_udp_fifos = 1;
7935 sp->other_fifo_idx = sp->total_tcp_fifos - 1;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007936 } else {
7937 sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM -
Joe Perchesd44570e2009-08-24 17:29:44 +00007938 FIFO_OTHER_MAX_NUM);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007939 sp->udp_fifo_idx = sp->total_tcp_fifos;
7940 sp->total_udp_fifos = FIFO_UDP_MAX_NUM;
7941 sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM;
7942 }
7943
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007944 config->multiq = dev_multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007945 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007946 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7947
7948 tx_cfg->fifo_len = tx_fifo_len[i];
7949 tx_cfg->fifo_priority = i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007950 }
7951
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007952 /* mapping the QoS priority to the configured fifos */
7953 for (i = 0; i < MAX_TX_FIFOS; i++)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007954 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007955
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007956 /* map the hashing selector table to the configured fifos */
7957 for (i = 0; i < config->tx_fifo_num; i++)
7958 sp->fifo_selector[i] = fifo_selector[i];
7959
7960
Linus Torvalds1da177e2005-04-16 15:20:36 -07007961 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7962 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007963 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7964
7965 tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7966 if (tx_cfg->fifo_len < 65) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007967 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7968 break;
7969 }
7970 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007971 /* + 2 because one Txd for skb->data and one Txd for UFO */
7972 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007973
7974 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007975 config->rx_ring_num = rx_ring_num;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007976 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007977 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7978 struct ring_info *ring = &mac_control->rings[i];
7979
7980 rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1);
7981 rx_cfg->ring_priority = i;
7982 ring->rx_bufs_left = 0;
7983 ring->rxd_mode = sp->rxd_mode;
7984 ring->rxd_count = rxd_count[sp->rxd_mode];
7985 ring->pdev = sp->pdev;
7986 ring->dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007987 }
7988
7989 for (i = 0; i < rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007990 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7991
7992 rx_cfg->ring_org = RING_ORG_BUFF1;
7993 rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007994 }
7995
7996 /* Setting Mac Control parameters */
7997 mac_control->rmac_pause_time = rmac_pause_time;
7998 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
7999 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
8000
8001
Linus Torvalds1da177e2005-04-16 15:20:36 -07008002 /* initialize the shared memory used by the NIC and the host */
8003 if (init_shared_mem(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008004 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008005 ret = -ENOMEM;
8006 goto mem_alloc_failed;
8007 }
8008
Arjan van de Ven275f1652008-10-20 21:42:39 -07008009 sp->bar0 = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008010 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008011 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008012 dev->name);
8013 ret = -ENOMEM;
8014 goto bar0_remap_failed;
8015 }
8016
Arjan van de Ven275f1652008-10-20 21:42:39 -07008017 sp->bar1 = pci_ioremap_bar(pdev, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008018 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008019 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008020 dev->name);
8021 ret = -ENOMEM;
8022 goto bar1_remap_failed;
8023 }
8024
8025 dev->irq = pdev->irq;
Joe Perchesd44570e2009-08-24 17:29:44 +00008026 dev->base_addr = (unsigned long)sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008027
8028 /* Initializing the BAR1 address as the start of the FIFO pointer. */
8029 for (j = 0; j < MAX_TX_FIFOS; j++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008030 mac_control->tx_FIFO_start[j] =
8031 (struct TxFIFO_element __iomem *)
8032 (sp->bar1 + (j * 0x00020000));
Linus Torvalds1da177e2005-04-16 15:20:36 -07008033 }
8034
8035 /* Driver entry points */
Stephen Hemminger04025092008-11-21 17:28:55 -08008036 dev->netdev_ops = &s2io_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008037 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07008038 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008039 dev->features |= NETIF_F_LRO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008040 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00008041 if (sp->high_dma_flag == true)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008042 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008043 dev->features |= NETIF_F_TSO;
Herbert Xuf83ef8c2006-06-30 13:37:03 -07008044 dev->features |= NETIF_F_TSO6;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008045 if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05008046 dev->features |= NETIF_F_UFO;
8047 dev->features |= NETIF_F_HW_CSUM;
8048 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008049 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00008050 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
8051 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008052
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07008053 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008054
8055 /* Setting swapper control on the NIC, for proper reset operation */
8056 if (s2io_set_swapper(sp)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008057 DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008058 dev->name);
8059 ret = -EAGAIN;
8060 goto set_swap_failed;
8061 }
8062
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008063 /* Verify if the Herc works on the slot its placed into */
8064 if (sp->device_type & XFRAME_II_DEVICE) {
8065 mode = s2io_verify_pci_mode(sp);
8066 if (mode < 0) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008067 DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n",
8068 __func__);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008069 ret = -EBADSLT;
8070 goto set_swap_failed;
8071 }
8072 }
8073
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008074 if (sp->config.intr_type == MSI_X) {
8075 sp->num_entries = config->rx_ring_num + 1;
8076 ret = s2io_enable_msi_x(sp);
8077
8078 if (!ret) {
8079 ret = s2io_test_msi(sp);
8080 /* rollback MSI-X, will re-enable during add_isr() */
8081 remove_msix_isr(sp);
8082 }
8083 if (ret) {
8084
8085 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00008086 "MSI-X requested but failed to enable\n");
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008087 sp->config.intr_type = INTA;
8088 }
8089 }
8090
8091 if (config->intr_type == MSI_X) {
Joe Perches13d866a2009-08-24 17:29:41 +00008092 for (i = 0; i < config->rx_ring_num ; i++) {
8093 struct ring_info *ring = &mac_control->rings[i];
8094
8095 netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64);
8096 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008097 } else {
8098 netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64);
8099 }
8100
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008101 /* Not needed for Herc */
8102 if (sp->device_type & XFRAME_I_DEVICE) {
8103 /*
8104 * Fix for all "FFs" MAC address problems observed on
8105 * Alpha platforms
8106 */
8107 fix_mac_address(sp);
8108 s2io_reset(sp);
8109 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008110
8111 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07008112 * MAC address initialization.
8113 * For now only one mac address will be read and used.
8114 */
8115 bar0 = sp->bar0;
8116 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Joe Perchesd44570e2009-08-24 17:29:44 +00008117 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008118 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04008119 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00008120 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
8121 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008122 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00008123 mac_down = (u32)tmp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008124 mac_up = (u32) (tmp64 >> 32);
8125
Linus Torvalds1da177e2005-04-16 15:20:36 -07008126 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
8127 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
8128 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
8129 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
8130 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
8131 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
8132
Linus Torvalds1da177e2005-04-16 15:20:36 -07008133 /* Set the factory defined MAC address initially */
8134 dev->addr_len = ETH_ALEN;
8135 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04008136 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008137
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08008138 /* initialize number of multicast & unicast MAC entries variables */
8139 if (sp->device_type == XFRAME_I_DEVICE) {
8140 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
8141 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
8142 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
8143 } else if (sp->device_type == XFRAME_II_DEVICE) {
8144 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
8145 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
8146 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
8147 }
8148
8149 /* store mac addresses from CAM to s2io_nic structure */
8150 do_s2io_store_unicast_mc(sp);
8151
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008152 /* Configure MSIX vector for number of rings configured plus one */
8153 if ((sp->device_type == XFRAME_II_DEVICE) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008154 (config->intr_type == MSI_X))
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008155 sp->num_entries = config->rx_ring_num + 1;
8156
Joe Perchesd44570e2009-08-24 17:29:44 +00008157 /* Store the values of the MSIX table in the s2io_nic structure */
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04008158 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04008159 /* reset Nic and bring it to known state */
8160 s2io_reset(sp);
8161
Linus Torvalds1da177e2005-04-16 15:20:36 -07008162 /*
Sreenivasa Honnur99993af2008-04-23 13:29:42 -04008163 * Initialize link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008164 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07008165 */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04008166 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008167
Linus Torvalds1da177e2005-04-16 15:20:36 -07008168 /* Initialize spinlocks */
Joe Perches13d866a2009-08-24 17:29:41 +00008169 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8170 struct fifo_info *fifo = &mac_control->fifos[i];
8171
8172 spin_lock_init(&fifo->tx_lock);
8173 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008174
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008175 /*
8176 * SXE-002: Configure link and activity LED to init state
8177 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07008178 */
8179 subid = sp->pdev->subsystem_device;
8180 if ((subid & 0xFF) >= 0x07) {
8181 val64 = readq(&bar0->gpio_control);
8182 val64 |= 0x0000800000000000ULL;
8183 writeq(val64, &bar0->gpio_control);
8184 val64 = 0x0411040400000000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00008185 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008186 val64 = readq(&bar0->gpio_control);
8187 }
8188
8189 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
8190
8191 if (register_netdev(dev)) {
8192 DBG_PRINT(ERR_DBG, "Device registration failed\n");
8193 ret = -ENODEV;
8194 goto register_failed;
8195 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04008196 s2io_vpd_read(sp);
Jon Mason926bd902010-07-15 08:47:26 +00008197 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00008198 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07008199 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04008200 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
8201 s2io_driver_version);
Joe Perches9e39f7c2009-08-25 08:52:00 +00008202 DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr);
8203 DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04008204 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07008205 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008206 if (mode < 0) {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008207 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008208 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008209 goto set_swap_failed;
8210 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008211 }
Joe Perchesd44570e2009-08-24 17:29:44 +00008212 switch (sp->rxd_mode) {
8213 case RXD_MODE_1:
8214 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
8215 dev->name);
8216 break;
8217 case RXD_MODE_3B:
8218 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
8219 dev->name);
8220 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008221 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008222
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008223 switch (sp->config.napi) {
8224 case 0:
8225 DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name);
8226 break;
8227 case 1:
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008228 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008229 break;
8230 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008231
8232 DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +00008233 sp->config.tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008234
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008235 DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name,
8236 sp->config.rx_ring_num);
8237
Joe Perchesd44570e2009-08-24 17:29:44 +00008238 switch (sp->config.intr_type) {
8239 case INTA:
8240 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
8241 break;
8242 case MSI_X:
8243 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
8244 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008245 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008246 if (sp->config.multiq) {
Joe Perches13d866a2009-08-24 17:29:41 +00008247 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8248 struct fifo_info *fifo = &mac_control->fifos[i];
8249
8250 fifo->multiq = config->multiq;
8251 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008252 DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008253 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008254 } else
8255 DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008256 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008257
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008258 switch (sp->config.tx_steering_type) {
8259 case NO_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008260 DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n",
8261 dev->name);
8262 break;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008263 case TX_PRIORITY_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008264 DBG_PRINT(ERR_DBG,
8265 "%s: Priority steering enabled for transmit\n",
8266 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008267 break;
8268 case TX_DEFAULT_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008269 DBG_PRINT(ERR_DBG,
8270 "%s: Default steering enabled for transmit\n",
8271 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008272 }
8273
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008274 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
8275 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008276 if (ufo)
Joe Perchesd44570e2009-08-24 17:29:44 +00008277 DBG_PRINT(ERR_DBG,
8278 "%s: UDP Fragmentation Offload(UFO) enabled\n",
8279 dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008280 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04008281 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008282
Breno Leitaocd0fce02008-09-04 17:52:54 -03008283 if (vlan_tag_strip)
8284 sp->vlan_strip_flag = 1;
8285 else
8286 sp->vlan_strip_flag = 0;
8287
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008288 /*
8289 * Make Link state as off at this point, when the Link change
8290 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07008291 * the right state.
8292 */
8293 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008294
8295 return 0;
8296
Joe Perchesd44570e2009-08-24 17:29:44 +00008297register_failed:
8298set_swap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008299 iounmap(sp->bar1);
Joe Perchesd44570e2009-08-24 17:29:44 +00008300bar1_remap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008301 iounmap(sp->bar0);
Joe Perchesd44570e2009-08-24 17:29:44 +00008302bar0_remap_failed:
8303mem_alloc_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008304 free_shared_mem(sp);
8305 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04008306 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008307 pci_set_drvdata(pdev, NULL);
8308 free_netdev(dev);
8309
8310 return ret;
8311}
8312
8313/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008314 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008315 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008316 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008317 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008318 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008319 * from memory.
8320 */
8321
8322static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8323{
8324 struct net_device *dev =
Joe Perchesd44570e2009-08-24 17:29:44 +00008325 (struct net_device *)pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008326 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008327
8328 if (dev == NULL) {
8329 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8330 return;
8331 }
8332
Francois Romieu22747d62007-02-15 23:37:50 +01008333 flush_scheduled_work();
8334
Wang Chen4cf16532008-11-12 23:38:14 -08008335 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008336 unregister_netdev(dev);
8337
8338 free_shared_mem(sp);
8339 iounmap(sp->bar0);
8340 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008341 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008342 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008343 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008344 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008345}
8346
8347/**
8348 * s2io_starter - Entry point for the driver
8349 * Description: This function is the entry point for the driver. It verifies
8350 * the module loadable parameters and initializes PCI configuration space.
8351 */
8352
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008353static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008354{
Jeff Garzik29917622006-08-19 17:48:59 -04008355 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008356}
8357
8358/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008359 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008360 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8361 */
8362
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008363static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008364{
8365 pci_unregister_driver(&s2io_driver);
8366 DBG_PRINT(INIT_DBG, "cleanup done\n");
8367}
8368
8369module_init(s2io_starter);
8370module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008371
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008372static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008373 struct tcphdr **tcp, struct RxD_t *rxdp,
8374 struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008375{
8376 int ip_off;
8377 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8378
8379 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008380 DBG_PRINT(INIT_DBG,
8381 "%s: Non-TCP frames not supported for LRO\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008382 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008383 return -1;
8384 }
8385
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008386 /* Checking for DIX type or DIX type with VLAN */
Joe Perchesd44570e2009-08-24 17:29:44 +00008387 if ((l2_type == 0) || (l2_type == 4)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008388 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8389 /*
8390 * If vlan stripping is disabled and the frame is VLAN tagged,
8391 * shift the offset by the VLAN header size bytes.
8392 */
Breno Leitaocd0fce02008-09-04 17:52:54 -03008393 if ((!sp->vlan_strip_flag) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008394 (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008395 ip_off += HEADER_VLAN_SIZE;
8396 } else {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008397 /* LLC, SNAP etc are considered non-mergeable */
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008398 return -1;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008399 }
8400
8401 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8402 ip_len = (u8)((*ip)->ihl);
8403 ip_len <<= 2;
8404 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8405
8406 return 0;
8407}
8408
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008409static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008410 struct tcphdr *tcp)
8411{
Joe Perchesd44570e2009-08-24 17:29:44 +00008412 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
8413 if ((lro->iph->saddr != ip->saddr) ||
8414 (lro->iph->daddr != ip->daddr) ||
8415 (lro->tcph->source != tcp->source) ||
8416 (lro->tcph->dest != tcp->dest))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008417 return -1;
8418 return 0;
8419}
8420
8421static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8422{
Joe Perchesd44570e2009-08-24 17:29:44 +00008423 return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008424}
8425
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008426static void initiate_new_session(struct lro *lro, u8 *l2h,
Joe Perchesd44570e2009-08-24 17:29:44 +00008427 struct iphdr *ip, struct tcphdr *tcp,
8428 u32 tcp_pyld_len, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008429{
Joe Perchesd44570e2009-08-24 17:29:44 +00008430 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008431 lro->l2h = l2h;
8432 lro->iph = ip;
8433 lro->tcph = tcp;
8434 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008435 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008436 lro->sg_num = 1;
8437 lro->total_len = ntohs(ip->tot_len);
8438 lro->frags_len = 0;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008439 lro->vlan_tag = vlan_tag;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008440 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00008441 * Check if we saw TCP timestamp.
8442 * Other consistency checks have already been done.
8443 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008444 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008445 __be32 *ptr;
8446 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008447 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008448 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008449 lro->cur_tsecr = *(ptr+2);
8450 }
8451 lro->in_use = 1;
8452}
8453
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008454static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008455{
8456 struct iphdr *ip = lro->iph;
8457 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008458 __sum16 nchk;
Joe Perchesffb5df62009-08-24 17:29:47 +00008459 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
8460
Joe Perchesd44570e2009-08-24 17:29:44 +00008461 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008462
8463 /* Update L3 header */
8464 ip->tot_len = htons(lro->total_len);
8465 ip->check = 0;
8466 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8467 ip->check = nchk;
8468
8469 /* Update L4 header */
8470 tcp->ack_seq = lro->tcp_ack;
8471 tcp->window = lro->window;
8472
8473 /* Update tsecr field if this session has timestamps enabled */
8474 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008475 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008476 *(ptr+2) = lro->cur_tsecr;
8477 }
8478
8479 /* Update counters required for calculation of
8480 * average no. of packets aggregated.
8481 */
Joe Perchesffb5df62009-08-24 17:29:47 +00008482 swstats->sum_avg_pkts_aggregated += lro->sg_num;
8483 swstats->num_aggregations++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008484}
8485
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008486static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008487 struct tcphdr *tcp, u32 l4_pyld)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008488{
Joe Perchesd44570e2009-08-24 17:29:44 +00008489 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008490 lro->total_len += l4_pyld;
8491 lro->frags_len += l4_pyld;
8492 lro->tcp_next_seq += l4_pyld;
8493 lro->sg_num++;
8494
8495 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8496 lro->tcp_ack = tcp->ack_seq;
8497 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008498
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008499 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008500 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008501 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008502 ptr = (__be32 *)(tcp+1);
8503 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008504 lro->cur_tsecr = *(ptr + 2);
8505 }
8506}
8507
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008508static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008509 struct tcphdr *tcp, u32 tcp_pyld_len)
8510{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008511 u8 *ptr;
8512
Joe Perchesd44570e2009-08-24 17:29:44 +00008513 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Andrew Morton79dc1902006-02-03 01:45:13 -08008514
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008515 if (!tcp_pyld_len) {
8516 /* Runt frame or a pure ack */
8517 return -1;
8518 }
8519
8520 if (ip->ihl != 5) /* IP has options */
8521 return -1;
8522
Ananda Raju75c30b12006-07-24 19:55:09 -04008523 /* If we see CE codepoint in IP header, packet is not mergeable */
8524 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8525 return -1;
8526
8527 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Joe Perchesd44570e2009-08-24 17:29:44 +00008528 if (tcp->urg || tcp->psh || tcp->rst ||
8529 tcp->syn || tcp->fin ||
8530 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008531 /*
8532 * Currently recognize only the ack control word and
8533 * any other control field being set would result in
8534 * flushing the LRO session
8535 */
8536 return -1;
8537 }
8538
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008539 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008540 * Allow only one TCP timestamp option. Don't aggregate if
8541 * any other options are detected.
8542 */
8543 if (tcp->doff != 5 && tcp->doff != 8)
8544 return -1;
8545
8546 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008547 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008548 while (*ptr == TCPOPT_NOP)
8549 ptr++;
8550 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8551 return -1;
8552
8553 /* Ensure timestamp value increases monotonically */
8554 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008555 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008556 return -1;
8557
8558 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008559 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008560 return -1;
8561 }
8562
8563 return 0;
8564}
8565
Joe Perchesd44570e2009-08-24 17:29:44 +00008566static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
8567 u8 **tcp, u32 *tcp_len, struct lro **lro,
8568 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008569{
8570 struct iphdr *ip;
8571 struct tcphdr *tcph;
8572 int ret = 0, i;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008573 u16 vlan_tag = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00008574 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008575
Joe Perchesd44570e2009-08-24 17:29:44 +00008576 ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8577 rxdp, sp);
8578 if (ret)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008579 return ret;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008580
Joe Perchesd44570e2009-08-24 17:29:44 +00008581 DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);
8582
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008583 vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008584 tcph = (struct tcphdr *)*tcp;
8585 *tcp_len = get_l4_pyld_length(ip, tcph);
Joe Perchesd44570e2009-08-24 17:29:44 +00008586 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008587 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008588 if (l_lro->in_use) {
8589 if (check_for_socket_match(l_lro, ip, tcph))
8590 continue;
8591 /* Sock pair matched */
8592 *lro = l_lro;
8593
8594 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008595 DBG_PRINT(INFO_DBG, "%s: Out of sequence. "
8596 "expected 0x%x, actual 0x%x\n",
8597 __func__,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008598 (*lro)->tcp_next_seq,
8599 ntohl(tcph->seq));
8600
Joe Perchesffb5df62009-08-24 17:29:47 +00008601 swstats->outof_sequence_pkts++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008602 ret = 2;
8603 break;
8604 }
8605
Joe Perchesd44570e2009-08-24 17:29:44 +00008606 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,
8607 *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008608 ret = 1; /* Aggregate */
8609 else
8610 ret = 2; /* Flush both */
8611 break;
8612 }
8613 }
8614
8615 if (ret == 0) {
8616 /* Before searching for available LRO objects,
8617 * check if the pkt is L3/L4 aggregatable. If not
8618 * don't create new LRO session. Just send this
8619 * packet up.
8620 */
Joe Perchesd44570e2009-08-24 17:29:44 +00008621 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008622 return 5;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008623
Joe Perchesd44570e2009-08-24 17:29:44 +00008624 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008625 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008626 if (!(l_lro->in_use)) {
8627 *lro = l_lro;
8628 ret = 3; /* Begin anew */
8629 break;
8630 }
8631 }
8632 }
8633
8634 if (ret == 0) { /* sessions exceeded */
Joe Perches9e39f7c2009-08-25 08:52:00 +00008635 DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008636 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008637 *lro = NULL;
8638 return ret;
8639 }
8640
8641 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008642 case 3:
8643 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
8644 vlan_tag);
8645 break;
8646 case 2:
8647 update_L3L4_header(sp, *lro);
8648 break;
8649 case 1:
8650 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8651 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008652 update_L3L4_header(sp, *lro);
Joe Perchesd44570e2009-08-24 17:29:44 +00008653 ret = 4; /* Flush the LRO */
8654 }
8655 break;
8656 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00008657 DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__);
Joe Perchesd44570e2009-08-24 17:29:44 +00008658 break;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008659 }
8660
8661 return ret;
8662}
8663
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008664static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008665{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008666 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008667
8668 memset(lro, 0, lro_struct_size);
8669}
8670
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008671static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008672{
8673 struct net_device *dev = skb->dev;
Wang Chen4cf16532008-11-12 23:38:14 -08008674 struct s2io_nic *sp = netdev_priv(dev);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008675
8676 skb->protocol = eth_type_trans(skb, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00008677 if (sp->vlgrp && vlan_tag && (sp->vlan_strip_flag)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008678 /* Queueing the vlan frame to the upper layer */
8679 if (sp->config.napi)
8680 vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);
8681 else
8682 vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag);
8683 } else {
8684 if (sp->config.napi)
8685 netif_receive_skb(skb);
8686 else
8687 netif_rx(skb);
8688 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008689}
8690
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008691static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
Joe Perchesd44570e2009-08-24 17:29:44 +00008692 struct sk_buff *skb, u32 tcp_len)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008693{
Ananda Raju75c30b12006-07-24 19:55:09 -04008694 struct sk_buff *first = lro->parent;
Joe Perchesffb5df62009-08-24 17:29:47 +00008695 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008696
8697 first->len += tcp_len;
8698 first->data_len = lro->frags_len;
8699 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008700 if (skb_shinfo(first)->frag_list)
8701 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008702 else
8703 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008704 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008705 lro->last_frag = skb;
Joe Perchesffb5df62009-08-24 17:29:47 +00008706 swstats->clubbed_frms_cnt++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008707}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008708
8709/**
8710 * s2io_io_error_detected - called when PCI error is detected
8711 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008712 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008713 *
8714 * This function is called after a PCI bus error affecting
8715 * this device has been detected.
8716 */
8717static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00008718 pci_channel_state_t state)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008719{
8720 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008721 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008722
8723 netif_device_detach(netdev);
8724
Dean Nelson1e3c8bd2009-07-31 09:13:56 +00008725 if (state == pci_channel_io_perm_failure)
8726 return PCI_ERS_RESULT_DISCONNECT;
8727
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008728 if (netif_running(netdev)) {
8729 /* Bring down the card, while avoiding PCI I/O */
8730 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008731 }
8732 pci_disable_device(pdev);
8733
8734 return PCI_ERS_RESULT_NEED_RESET;
8735}
8736
8737/**
8738 * s2io_io_slot_reset - called after the pci bus has been reset.
8739 * @pdev: Pointer to PCI device
8740 *
8741 * Restart the card from scratch, as if from a cold-boot.
8742 * At this point, the card has exprienced a hard reset,
8743 * followed by fixups by BIOS, and has its config space
8744 * set up identically to what it was at cold boot.
8745 */
8746static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8747{
8748 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008749 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008750
8751 if (pci_enable_device(pdev)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008752 pr_err("Cannot re-enable PCI device after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008753 return PCI_ERS_RESULT_DISCONNECT;
8754 }
8755
8756 pci_set_master(pdev);
8757 s2io_reset(sp);
8758
8759 return PCI_ERS_RESULT_RECOVERED;
8760}
8761
8762/**
8763 * s2io_io_resume - called when traffic can start flowing again.
8764 * @pdev: Pointer to PCI device
8765 *
8766 * This callback is called when the error recovery driver tells
8767 * us that its OK to resume normal operation.
8768 */
8769static void s2io_io_resume(struct pci_dev *pdev)
8770{
8771 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008772 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008773
8774 if (netif_running(netdev)) {
8775 if (s2io_card_up(sp)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008776 pr_err("Can't bring device back up after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008777 return;
8778 }
8779
8780 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8781 s2io_card_down(sp);
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008782 pr_err("Can't restore mac addr after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008783 return;
8784 }
8785 }
8786
8787 netif_device_attach(netdev);
David S. Millerfd2ea0a2008-07-17 01:56:23 -07008788 netif_tx_wake_all_queues(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008789}