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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 Perches6cef2b82009-08-24 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>
Paul Gortmaker70c71602011-05-22 16:47:17 -040081#include <linux/prefetch.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050082#include <net/tcp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#include <asm/system.h>
Andrew Mortonfe931392006-02-03 01:45:12 -080085#include <asm/div64.h>
Andrew Morton330ce0d2006-08-14 23:00:14 -070086#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88/* local include */
89#include "s2io.h"
90#include "s2io-regs.h"
91
Jon Mason11410b62010-12-10 15:40:03 +000092#define DRV_VERSION "2.0.26.28"
John Linville6c1792f2005-10-04 07:51:45 -040093
Linus Torvalds1da177e2005-04-16 15:20:36 -070094/* S2io Driver name & version. */
Jon Masonc0dbf372010-12-10 15:40:02 +000095static const char s2io_driver_name[] = "Neterion";
96static const char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
Jon Masonc0dbf372010-12-10 15:40:02 +000098static const int rxd_size[2] = {32, 48};
99static const int rxd_count[2] = {127, 85};
Ananda Rajuda6971d2005-10-31 16:55:31 -0500100
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500101static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700102{
103 int ret;
104
105 ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) &&
Joe Perchesd44570e2009-08-24 17:29:44 +0000106 (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK));
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700107
108 return ret;
109}
110
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700111/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 * Cards with following subsystem_id have a link state indication
113 * problem, 600B, 600C, 600D, 640B, 640C and 640D.
114 * macro below identifies these cards given the subsystem_id.
115 */
Joe Perchesd44570e2009-08-24 17:29:44 +0000116#define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
117 (dev_type == XFRAME_I_DEVICE) ? \
118 ((((subid >= 0x600B) && (subid <= 0x600D)) || \
119 ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120
121#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
122 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123
Joe Perchesd44570e2009-08-24 17:29:44 +0000124static inline int is_s2io_card_up(const struct s2io_nic *sp)
Sivakumar Subramani92b84432007-09-06 06:51:14 -0400125{
126 return test_bit(__S2IO_STATE_CARD_UP, &sp->state);
127}
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129/* Ethtool related variables and Macros. */
Joe Perches6fce3652009-08-24 17:29:40 +0000130static const char s2io_gstrings[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 "Register test\t(offline)",
132 "Eeprom test\t(offline)",
133 "Link test\t(online)",
134 "RLDRAM test\t(offline)",
135 "BIST Test\t(offline)"
136};
137
Joe Perches6fce3652009-08-24 17:29:40 +0000138static const char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 {"tmac_frms"},
140 {"tmac_data_octets"},
141 {"tmac_drop_frms"},
142 {"tmac_mcst_frms"},
143 {"tmac_bcst_frms"},
144 {"tmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400145 {"tmac_ttl_octets"},
146 {"tmac_ucst_frms"},
147 {"tmac_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 {"tmac_any_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400149 {"tmac_ttl_less_fb_octets"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 {"tmac_vld_ip_octets"},
151 {"tmac_vld_ip"},
152 {"tmac_drop_ip"},
153 {"tmac_icmp"},
154 {"tmac_rst_tcp"},
155 {"tmac_tcp"},
156 {"tmac_udp"},
157 {"rmac_vld_frms"},
158 {"rmac_data_octets"},
159 {"rmac_fcs_err_frms"},
160 {"rmac_drop_frms"},
161 {"rmac_vld_mcst_frms"},
162 {"rmac_vld_bcst_frms"},
163 {"rmac_in_rng_len_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400164 {"rmac_out_rng_len_err_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 {"rmac_long_frms"},
166 {"rmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400167 {"rmac_unsup_ctrl_frms"},
168 {"rmac_ttl_octets"},
169 {"rmac_accepted_ucst_frms"},
170 {"rmac_accepted_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 {"rmac_discarded_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400172 {"rmac_drop_events"},
173 {"rmac_ttl_less_fb_octets"},
174 {"rmac_ttl_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 {"rmac_usized_frms"},
176 {"rmac_osized_frms"},
177 {"rmac_frag_frms"},
178 {"rmac_jabber_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400179 {"rmac_ttl_64_frms"},
180 {"rmac_ttl_65_127_frms"},
181 {"rmac_ttl_128_255_frms"},
182 {"rmac_ttl_256_511_frms"},
183 {"rmac_ttl_512_1023_frms"},
184 {"rmac_ttl_1024_1518_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 {"rmac_ip"},
186 {"rmac_ip_octets"},
187 {"rmac_hdr_err_ip"},
188 {"rmac_drop_ip"},
189 {"rmac_icmp"},
190 {"rmac_tcp"},
191 {"rmac_udp"},
192 {"rmac_err_drp_udp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400193 {"rmac_xgmii_err_sym"},
194 {"rmac_frms_q0"},
195 {"rmac_frms_q1"},
196 {"rmac_frms_q2"},
197 {"rmac_frms_q3"},
198 {"rmac_frms_q4"},
199 {"rmac_frms_q5"},
200 {"rmac_frms_q6"},
201 {"rmac_frms_q7"},
202 {"rmac_full_q0"},
203 {"rmac_full_q1"},
204 {"rmac_full_q2"},
205 {"rmac_full_q3"},
206 {"rmac_full_q4"},
207 {"rmac_full_q5"},
208 {"rmac_full_q6"},
209 {"rmac_full_q7"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 {"rmac_pause_cnt"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400211 {"rmac_xgmii_data_err_cnt"},
212 {"rmac_xgmii_ctrl_err_cnt"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 {"rmac_accepted_ip"},
214 {"rmac_err_tcp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400215 {"rd_req_cnt"},
216 {"new_rd_req_cnt"},
217 {"new_rd_req_rtry_cnt"},
218 {"rd_rtry_cnt"},
219 {"wr_rtry_rd_ack_cnt"},
220 {"wr_req_cnt"},
221 {"new_wr_req_cnt"},
222 {"new_wr_req_rtry_cnt"},
223 {"wr_rtry_cnt"},
224 {"wr_disc_cnt"},
225 {"rd_rtry_wr_ack_cnt"},
226 {"txp_wr_cnt"},
227 {"txd_rd_cnt"},
228 {"txd_wr_cnt"},
229 {"rxd_rd_cnt"},
230 {"rxd_wr_cnt"},
231 {"txf_rd_cnt"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500232 {"rxf_wr_cnt"}
233};
234
Joe Perches6fce3652009-08-24 17:29:40 +0000235static const char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = {
Ananda Rajubd1034f2006-04-21 19:20:22 -0400236 {"rmac_ttl_1519_4095_frms"},
237 {"rmac_ttl_4096_8191_frms"},
238 {"rmac_ttl_8192_max_frms"},
239 {"rmac_ttl_gt_max_frms"},
240 {"rmac_osized_alt_frms"},
241 {"rmac_jabber_alt_frms"},
242 {"rmac_gt_max_alt_frms"},
243 {"rmac_vlan_frms"},
244 {"rmac_len_discard"},
245 {"rmac_fcs_discard"},
246 {"rmac_pf_discard"},
247 {"rmac_da_discard"},
248 {"rmac_red_discard"},
249 {"rmac_rts_discard"},
250 {"rmac_ingm_full_discard"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500251 {"link_fault_cnt"}
252};
253
Joe Perches6fce3652009-08-24 17:29:40 +0000254static const char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700255 {"\n DRIVER STATISTICS"},
256 {"single_bit_ecc_errs"},
257 {"double_bit_ecc_errs"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400258 {"parity_err_cnt"},
259 {"serious_err_cnt"},
260 {"soft_reset_cnt"},
261 {"fifo_full_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700262 {"ring_0_full_cnt"},
263 {"ring_1_full_cnt"},
264 {"ring_2_full_cnt"},
265 {"ring_3_full_cnt"},
266 {"ring_4_full_cnt"},
267 {"ring_5_full_cnt"},
268 {"ring_6_full_cnt"},
269 {"ring_7_full_cnt"},
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700270 {"alarm_transceiver_temp_high"},
271 {"alarm_transceiver_temp_low"},
272 {"alarm_laser_bias_current_high"},
273 {"alarm_laser_bias_current_low"},
274 {"alarm_laser_output_power_high"},
275 {"alarm_laser_output_power_low"},
276 {"warn_transceiver_temp_high"},
277 {"warn_transceiver_temp_low"},
278 {"warn_laser_bias_current_high"},
279 {"warn_laser_bias_current_low"},
280 {"warn_laser_output_power_high"},
281 {"warn_laser_output_power_low"},
282 {"lro_aggregated_pkts"},
283 {"lro_flush_both_count"},
284 {"lro_out_of_sequence_pkts"},
285 {"lro_flush_due_to_max_pkts"},
286 {"lro_avg_aggr_pkts"},
287 {"mem_alloc_fail_cnt"},
288 {"pci_map_fail_cnt"},
289 {"watchdog_timer_cnt"},
290 {"mem_allocated"},
291 {"mem_freed"},
292 {"link_up_cnt"},
293 {"link_down_cnt"},
294 {"link_up_time"},
295 {"link_down_time"},
296 {"tx_tcode_buf_abort_cnt"},
297 {"tx_tcode_desc_abort_cnt"},
298 {"tx_tcode_parity_err_cnt"},
299 {"tx_tcode_link_loss_cnt"},
300 {"tx_tcode_list_proc_err_cnt"},
301 {"rx_tcode_parity_err_cnt"},
302 {"rx_tcode_abort_cnt"},
303 {"rx_tcode_parity_abort_cnt"},
304 {"rx_tcode_rda_fail_cnt"},
305 {"rx_tcode_unkn_prot_cnt"},
306 {"rx_tcode_fcs_err_cnt"},
307 {"rx_tcode_buf_size_err_cnt"},
308 {"rx_tcode_rxd_corrupt_cnt"},
309 {"rx_tcode_unkn_err_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700310 {"tda_err_cnt"},
311 {"pfc_err_cnt"},
312 {"pcc_err_cnt"},
313 {"tti_err_cnt"},
314 {"tpa_err_cnt"},
315 {"sm_err_cnt"},
316 {"lso_err_cnt"},
317 {"mac_tmac_err_cnt"},
318 {"mac_rmac_err_cnt"},
319 {"xgxs_txgxs_err_cnt"},
320 {"xgxs_rxgxs_err_cnt"},
321 {"rc_err_cnt"},
322 {"prc_pcix_err_cnt"},
323 {"rpa_err_cnt"},
324 {"rda_err_cnt"},
325 {"rti_err_cnt"},
326 {"mc_err_cnt"}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327};
328
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200329#define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys)
330#define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys)
331#define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500332
Joe Perchesd44570e2009-08-24 17:29:44 +0000333#define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN)
334#define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500335
Joe Perchesd44570e2009-08-24 17:29:44 +0000336#define XFRAME_I_STAT_STRINGS_LEN (XFRAME_I_STAT_LEN * ETH_GSTRING_LEN)
337#define XFRAME_II_STAT_STRINGS_LEN (XFRAME_II_STAT_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200339#define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings)
Joe Perchesd44570e2009-08-24 17:29:44 +0000340#define S2IO_STRINGS_LEN (S2IO_TEST_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
Joe Perchesd44570e2009-08-24 17:29:44 +0000342#define S2IO_TIMER_CONF(timer, handle, arg, exp) \
343 init_timer(&timer); \
344 timer.function = handle; \
345 timer.data = (unsigned long)arg; \
346 mod_timer(&timer, (jiffies + exp)) \
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700347
Sivakumar Subramani2fd37682007-09-14 07:39:19 -0400348/* copy mac addr to def_mac_addr array */
349static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr)
350{
351 sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr);
352 sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8);
353 sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16);
354 sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24);
355 sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32);
356 sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40);
357}
Stephen Hemminger04025092008-11-21 17:28:55 -0800358
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700359/* Add the vlan */
360static void s2io_vlan_rx_register(struct net_device *dev,
Stephen Hemminger04025092008-11-21 17:28:55 -0800361 struct vlan_group *grp)
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700362{
Surjit Reang2fda0962008-01-24 02:08:59 -0800363 int i;
Wang Chen4cf16532008-11-12 23:38:14 -0800364 struct s2io_nic *nic = netdev_priv(dev);
Surjit Reang2fda0962008-01-24 02:08:59 -0800365 unsigned long flags[MAX_TX_FIFOS];
Surjit Reang2fda0962008-01-24 02:08:59 -0800366 struct config_param *config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000367 struct mac_info *mac_control = &nic->mac_control;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700368
Joe Perches13d866a2009-08-24 17:29:41 +0000369 for (i = 0; i < config->tx_fifo_num; i++) {
370 struct fifo_info *fifo = &mac_control->fifos[i];
371
372 spin_lock_irqsave(&fifo->tx_lock, flags[i]);
373 }
Surjit Reang2fda0962008-01-24 02:08:59 -0800374
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700375 nic->vlgrp = grp;
Joe Perches13d866a2009-08-24 17:29:41 +0000376
377 for (i = config->tx_fifo_num - 1; i >= 0; i--) {
378 struct fifo_info *fifo = &mac_control->fifos[i];
379
380 spin_unlock_irqrestore(&fifo->tx_lock, flags[i]);
381 }
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700382}
383
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500384/* Unregister the vlan */
Stephen Hemminger04025092008-11-21 17:28:55 -0800385static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500386{
387 int i;
Wang Chen4cf16532008-11-12 23:38:14 -0800388 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500389 unsigned long flags[MAX_TX_FIFOS];
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500390 struct config_param *config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000391 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500392
Joe Perches13d866a2009-08-24 17:29:41 +0000393 for (i = 0; i < config->tx_fifo_num; i++) {
394 struct fifo_info *fifo = &mac_control->fifos[i];
395
396 spin_lock_irqsave(&fifo->tx_lock, flags[i]);
397 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500398
399 if (nic->vlgrp)
400 vlan_group_set_device(nic->vlgrp, vid, NULL);
401
Joe Perches13d866a2009-08-24 17:29:41 +0000402 for (i = config->tx_fifo_num - 1; i >= 0; i--) {
403 struct fifo_info *fifo = &mac_control->fifos[i];
404
405 spin_unlock_irqrestore(&fifo->tx_lock, flags[i]);
406 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -0500407}
408
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700409/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 * Constants to be programmed into the Xena's registers, to configure
411 * the XAUI.
412 */
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414#define END_SIGN 0x0
Arjan van de Venf71e1302006-03-03 21:33:57 -0500415static const u64 herc_act_dtx_cfg[] = {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700416 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700417 0x8000051536750000ULL, 0x80000515367500E0ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700418 /* Write data */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700419 0x8000051536750004ULL, 0x80000515367500E4ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700420 /* Set address */
421 0x80010515003F0000ULL, 0x80010515003F00E0ULL,
422 /* Write data */
423 0x80010515003F0004ULL, 0x80010515003F00E4ULL,
424 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700425 0x801205150D440000ULL, 0x801205150D4400E0ULL,
426 /* Write data */
427 0x801205150D440004ULL, 0x801205150D4400E4ULL,
428 /* Set address */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700429 0x80020515F2100000ULL, 0x80020515F21000E0ULL,
430 /* Write data */
431 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
432 /* Done */
433 END_SIGN
434};
435
Arjan van de Venf71e1302006-03-03 21:33:57 -0500436static const u64 xena_dtx_cfg[] = {
Ananda Rajuc92ca042006-04-21 19:18:03 -0400437 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 0x8000051500000000ULL, 0x80000515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400439 /* Write data */
440 0x80000515D9350004ULL, 0x80000515D93500E4ULL,
441 /* Set address */
442 0x8001051500000000ULL, 0x80010515000000E0ULL,
443 /* Write data */
444 0x80010515001E0004ULL, 0x80010515001E00E4ULL,
445 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 0x8002051500000000ULL, 0x80020515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400447 /* Write data */
448 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 END_SIGN
450};
451
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700452/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 * Constants for Fixing the MacAddress problem seen mostly on
454 * Alpha machines.
455 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500456static const u64 fix_mac[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 0x0060000000000000ULL, 0x0060600000000000ULL,
458 0x0040600000000000ULL, 0x0000600000000000ULL,
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, 0x0060600000000000ULL,
469 0x0020600000000000ULL, 0x0000600000000000ULL,
470 0x0040600000000000ULL, 0x0060600000000000ULL,
471 END_SIGN
472};
473
Ananda Rajub41477f2006-07-24 19:52:49 -0400474MODULE_LICENSE("GPL");
475MODULE_VERSION(DRV_VERSION);
476
477
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478/* Module Loadable parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500479S2IO_PARM_INT(tx_fifo_num, FIFO_DEFAULT_NUM);
Ananda Rajub41477f2006-07-24 19:52:49 -0400480S2IO_PARM_INT(rx_ring_num, 1);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500481S2IO_PARM_INT(multiq, 0);
Ananda Rajub41477f2006-07-24 19:52:49 -0400482S2IO_PARM_INT(rx_ring_mode, 1);
483S2IO_PARM_INT(use_continuous_tx_intrs, 1);
484S2IO_PARM_INT(rmac_pause_time, 0x100);
485S2IO_PARM_INT(mc_pause_threshold_q0q3, 187);
486S2IO_PARM_INT(mc_pause_threshold_q4q7, 187);
487S2IO_PARM_INT(shared_splits, 0);
488S2IO_PARM_INT(tmac_util_period, 5);
489S2IO_PARM_INT(rmac_util_period, 5);
Ananda Rajub41477f2006-07-24 19:52:49 -0400490S2IO_PARM_INT(l3l4hdr_size, 128);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500491/* 0 is no steering, 1 is Priority steering, 2 is Default steering */
492S2IO_PARM_INT(tx_steering_type, TX_DEFAULT_STEERING);
Ananda Rajub41477f2006-07-24 19:52:49 -0400493/* Frequency of Rx desc syncs expressed as power of 2 */
494S2IO_PARM_INT(rxsync_frequency, 3);
Veena Parateccb8622007-07-23 02:23:54 -0400495/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -0700496S2IO_PARM_INT(intr_type, 2);
Ananda Rajub41477f2006-07-24 19:52:49 -0400497/* Large receive offload feature */
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700498
Ananda Rajub41477f2006-07-24 19:52:49 -0400499/* Max pkts to be aggregated by LRO at one time. If not specified,
500 * aggregation happens until we hit max IP pkt size(64K)
501 */
502S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
Ananda Rajub41477f2006-07-24 19:52:49 -0400503S2IO_PARM_INT(indicate_max_pkts, 0);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -0500504
505S2IO_PARM_INT(napi, 1);
506S2IO_PARM_INT(ufo, 0);
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500507S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC);
Ananda Rajub41477f2006-07-24 19:52:49 -0400508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000510{DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511static unsigned int rx_ring_sz[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000512{[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700513static unsigned int rts_frm_len[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000514{[0 ...(MAX_RX_RINGS - 1)] = 0 };
Ananda Rajub41477f2006-07-24 19:52:49 -0400515
516module_param_array(tx_fifo_len, uint, NULL, 0);
517module_param_array(rx_ring_sz, uint, NULL, 0);
518module_param_array(rts_frm_len, uint, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700520/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 * S2IO device table.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700522 * This table lists all the devices that this driver supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +0000524static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN,
526 PCI_ANY_ID, PCI_ANY_ID},
527 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI,
528 PCI_ANY_ID, PCI_ANY_ID},
529 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN,
Joe Perchesd44570e2009-08-24 17:29:44 +0000530 PCI_ANY_ID, PCI_ANY_ID},
531 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI,
532 PCI_ANY_ID, PCI_ANY_ID},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 {0,}
534};
535
536MODULE_DEVICE_TABLE(pci, s2io_tbl);
537
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500538static struct pci_error_handlers s2io_err_handler = {
539 .error_detected = s2io_io_error_detected,
540 .slot_reset = s2io_io_slot_reset,
541 .resume = s2io_io_resume,
542};
543
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544static struct pci_driver s2io_driver = {
Joe Perchesd44570e2009-08-24 17:29:44 +0000545 .name = "S2IO",
546 .id_table = s2io_tbl,
547 .probe = s2io_init_nic,
548 .remove = __devexit_p(s2io_rem_nic),
549 .err_handler = &s2io_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550};
551
552/* A simplifier macro used both by init and free shared_mem Fns(). */
553#define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
554
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500555/* netqueue manipulation helper functions */
556static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp)
557{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700558 if (!sp->config.multiq) {
559 int i;
560
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500561 for (i = 0; i < sp->config.tx_fifo_num; i++)
562 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500563 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700564 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500565}
566
567static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no)
568{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700569 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500570 sp->mac_control.fifos[fifo_no].queue_state =
571 FIFO_QUEUE_STOP;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700572
573 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500574}
575
576static inline void s2io_start_all_tx_queue(struct s2io_nic *sp)
577{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700578 if (!sp->config.multiq) {
579 int i;
580
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500581 for (i = 0; i < sp->config.tx_fifo_num; i++)
582 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500583 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700584 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500585}
586
587static inline void s2io_start_tx_queue(struct s2io_nic *sp, int fifo_no)
588{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700589 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500590 sp->mac_control.fifos[fifo_no].queue_state =
591 FIFO_QUEUE_START;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700592
593 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500594}
595
596static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp)
597{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700598 if (!sp->config.multiq) {
599 int i;
600
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500601 for (i = 0; i < sp->config.tx_fifo_num; i++)
602 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500603 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700604 netif_tx_wake_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500605}
606
607static inline void s2io_wake_tx_queue(
608 struct fifo_info *fifo, int cnt, u8 multiq)
609{
610
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500611 if (multiq) {
612 if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no))
613 netif_wake_subqueue(fifo->dev, fifo->fifo_no);
David S. Millerb19fa1f2008-07-08 23:14:24 -0700614 } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500615 if (netif_queue_stopped(fifo->dev)) {
616 fifo->queue_state = FIFO_QUEUE_START;
617 netif_wake_queue(fifo->dev);
618 }
619 }
620}
621
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622/**
623 * init_shared_mem - Allocation and Initialization of Memory
624 * @nic: Device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700625 * Description: The function allocates all the memory areas shared
626 * between the NIC and the driver. This includes Tx descriptors,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 * Rx descriptors and the statistics block.
628 */
629
630static int init_shared_mem(struct s2io_nic *nic)
631{
632 u32 size;
633 void *tmp_v_addr, *tmp_v_addr_next;
634 dma_addr_t tmp_p_addr, tmp_p_addr_next;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500635 struct RxD_block *pre_rxd_blk = NULL;
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500636 int i, j, blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 int lst_size, lst_per_page;
638 struct net_device *dev = nic->dev;
viro@zenIV.linux.org.uk8ae418c2005-09-02 20:15:29 +0100639 unsigned long tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500640 struct buffAdd *ba;
Joe Perchesffb5df62009-08-24 17:29:47 +0000641 struct config_param *config = &nic->config;
642 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400643 unsigned long long mem_allocated = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
Joe Perches13d866a2009-08-24 17:29:41 +0000645 /* Allocation and initialization of TXDLs in FIFOs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646 size = 0;
647 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000648 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
649
650 size += tx_cfg->fifo_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 }
652 if (size > MAX_AVAILABLE_TXDS) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000653 DBG_PRINT(ERR_DBG,
654 "Too many TxDs requested: %d, max supported: %d\n",
655 size, MAX_AVAILABLE_TXDS);
Ananda Rajub41477f2006-07-24 19:52:49 -0400656 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 }
658
Surjit Reang2fda0962008-01-24 02:08:59 -0800659 size = 0;
660 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000661 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
662
663 size = tx_cfg->fifo_len;
Surjit Reang2fda0962008-01-24 02:08:59 -0800664 /*
665 * Legal values are from 2 to 8192
666 */
667 if (size < 2) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000668 DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - "
669 "Valid lengths are 2 through 8192\n",
670 i, size);
Surjit Reang2fda0962008-01-24 02:08:59 -0800671 return -EINVAL;
672 }
673 }
674
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500675 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 lst_per_page = PAGE_SIZE / lst_size;
677
678 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000679 struct fifo_info *fifo = &mac_control->fifos[i];
680 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
681 int fifo_len = tx_cfg->fifo_len;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500682 int list_holder_size = fifo_len * sizeof(struct list_info_hold);
Joe Perches13d866a2009-08-24 17:29:41 +0000683
684 fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL);
685 if (!fifo->list_info) {
Joe Perchesd44570e2009-08-24 17:29:44 +0000686 DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687 return -ENOMEM;
688 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400689 mem_allocated += list_holder_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 }
691 for (i = 0; i < config->tx_fifo_num; i++) {
692 int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
693 lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000694 struct fifo_info *fifo = &mac_control->fifos[i];
695 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
696
697 fifo->tx_curr_put_info.offset = 0;
698 fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1;
699 fifo->tx_curr_get_info.offset = 0;
700 fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1;
701 fifo->fifo_no = i;
702 fifo->nic = nic;
703 fifo->max_txds = MAX_SKB_FRAGS + 2;
704 fifo->dev = dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 for (j = 0; j < page_num; j++) {
707 int k = 0;
708 dma_addr_t tmp_p;
709 void *tmp_v;
710 tmp_v = pci_alloc_consistent(nic->pdev,
711 PAGE_SIZE, &tmp_p);
712 if (!tmp_v) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000713 DBG_PRINT(INFO_DBG,
714 "pci_alloc_consistent failed for TxDL\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 return -ENOMEM;
716 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700717 /* If we got a zero DMA address(can happen on
718 * certain platforms like PPC), reallocate.
719 * Store virtual address of page we don't want,
720 * to be freed later.
721 */
722 if (!tmp_p) {
723 mac_control->zerodma_virt_addr = tmp_v;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400724 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000725 "%s: Zero DMA address for TxDL. "
726 "Virtual address %p\n",
727 dev->name, tmp_v);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700728 tmp_v = pci_alloc_consistent(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +0000729 PAGE_SIZE, &tmp_p);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700730 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800731 DBG_PRINT(INFO_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000732 "pci_alloc_consistent failed for TxDL\n");
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700733 return -ENOMEM;
734 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400735 mem_allocated += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700736 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 while (k < lst_per_page) {
738 int l = (j * lst_per_page) + k;
Joe Perches13d866a2009-08-24 17:29:41 +0000739 if (l == tx_cfg->fifo_len)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700740 break;
Joe Perches13d866a2009-08-24 17:29:41 +0000741 fifo->list_info[l].list_virt_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000742 tmp_v + (k * lst_size);
Joe Perches13d866a2009-08-24 17:29:41 +0000743 fifo->list_info[l].list_phy_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000744 tmp_p + (k * lst_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 k++;
746 }
747 }
748 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
Surjit Reang2fda0962008-01-24 02:08:59 -0800750 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000751 struct fifo_info *fifo = &mac_control->fifos[i];
752 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
753
754 size = tx_cfg->fifo_len;
755 fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL);
756 if (!fifo->ufo_in_band_v)
Surjit Reang2fda0962008-01-24 02:08:59 -0800757 return -ENOMEM;
758 mem_allocated += (size * sizeof(u64));
759 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 /* Allocation and initialization of RXDs in Rings */
762 size = 0;
763 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000764 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
765 struct ring_info *ring = &mac_control->rings[i];
766
767 if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000768 DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a "
769 "multiple of RxDs per Block\n",
770 dev->name, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 return FAILURE;
772 }
Joe Perches13d866a2009-08-24 17:29:41 +0000773 size += rx_cfg->num_rxd;
774 ring->block_count = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000775 (rxd_count[nic->rxd_mode] + 1);
Joe Perches13d866a2009-08-24 17:29:41 +0000776 ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500778 if (nic->rxd_mode == RXD_MODE_1)
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500779 size = (size * (sizeof(struct RxD1)));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500780 else
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500781 size = (size * (sizeof(struct RxD3)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782
783 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000784 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
785 struct ring_info *ring = &mac_control->rings[i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700786
Joe Perches13d866a2009-08-24 17:29:41 +0000787 ring->rx_curr_get_info.block_index = 0;
788 ring->rx_curr_get_info.offset = 0;
789 ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1;
790 ring->rx_curr_put_info.block_index = 0;
791 ring->rx_curr_put_info.offset = 0;
792 ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1;
793 ring->nic = nic;
794 ring->ring_no = i;
Joe Perches13d866a2009-08-24 17:29:41 +0000795
796 blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 /* Allocating all the Rx blocks */
798 for (j = 0; j < blk_cnt; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500799 struct rx_block_info *rx_blocks;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500800 int l;
801
Joe Perches13d866a2009-08-24 17:29:41 +0000802 rx_blocks = &ring->rx_blocks[j];
Joe Perchesd44570e2009-08-24 17:29:44 +0000803 size = SIZE_OF_BLOCK; /* size is always page size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
805 &tmp_p_addr);
806 if (tmp_v_addr == NULL) {
807 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700808 * In case of failure, free_shared_mem()
809 * is called, which should free any
810 * memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811 * failure happened.
812 */
Ananda Rajuda6971d2005-10-31 16:55:31 -0500813 rx_blocks->block_virt_addr = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 return -ENOMEM;
815 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400816 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 memset(tmp_v_addr, 0, size);
Joe Perches4f870322009-08-24 17:29:42 +0000818
819 size = sizeof(struct rxd_info) *
820 rxd_count[nic->rxd_mode];
Ananda Rajuda6971d2005-10-31 16:55:31 -0500821 rx_blocks->block_virt_addr = tmp_v_addr;
822 rx_blocks->block_dma_addr = tmp_p_addr;
Joe Perches4f870322009-08-24 17:29:42 +0000823 rx_blocks->rxds = kmalloc(size, GFP_KERNEL);
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500824 if (!rx_blocks->rxds)
825 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000826 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000827 for (l = 0; l < rxd_count[nic->rxd_mode]; l++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500828 rx_blocks->rxds[l].virt_addr =
829 rx_blocks->block_virt_addr +
830 (rxd_size[nic->rxd_mode] * l);
831 rx_blocks->rxds[l].dma_addr =
832 rx_blocks->block_dma_addr +
833 (rxd_size[nic->rxd_mode] * l);
834 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 }
836 /* Interlinking all Rx Blocks */
837 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000838 int next = (j + 1) % blk_cnt;
839 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
840 tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr;
841 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
842 tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843
Joe Perchesd44570e2009-08-24 17:29:44 +0000844 pre_rxd_blk = (struct RxD_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 pre_rxd_blk->reserved_2_pNext_RxD_block =
Joe Perchesd44570e2009-08-24 17:29:44 +0000846 (unsigned long)tmp_v_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847 pre_rxd_blk->pNext_RxD_Blk_physical =
Joe Perchesd44570e2009-08-24 17:29:44 +0000848 (u64)tmp_p_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 }
850 }
Veena Parat6d517a22007-07-23 02:20:51 -0400851 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500852 /*
853 * Allocation of Storages for buffer addresses in 2BUFF mode
854 * and the buffers as well.
855 */
856 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000857 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
858 struct ring_info *ring = &mac_control->rings[i];
859
860 blk_cnt = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000861 (rxd_count[nic->rxd_mode] + 1);
Joe Perches4f870322009-08-24 17:29:42 +0000862 size = sizeof(struct buffAdd *) * blk_cnt;
863 ring->ba = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000864 if (!ring->ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000866 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500867 for (j = 0; j < blk_cnt; j++) {
868 int k = 0;
Joe Perches4f870322009-08-24 17:29:42 +0000869
870 size = sizeof(struct buffAdd) *
871 (rxd_count[nic->rxd_mode] + 1);
872 ring->ba[j] = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000873 if (!ring->ba[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000875 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500876 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +0000877 ba = &ring->ba[j][k];
Joe Perches4f870322009-08-24 17:29:42 +0000878 size = BUF0_LEN + ALIGN_SIZE;
879 ba->ba_0_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500880 if (!ba->ba_0_org)
881 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000882 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500883 tmp = (unsigned long)ba->ba_0_org;
884 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000885 tmp &= ~((unsigned long)ALIGN_SIZE);
886 ba->ba_0 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500887
Joe Perches4f870322009-08-24 17:29:42 +0000888 size = BUF1_LEN + ALIGN_SIZE;
889 ba->ba_1_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500890 if (!ba->ba_1_org)
891 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000892 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000893 tmp = (unsigned long)ba->ba_1_org;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500894 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000895 tmp &= ~((unsigned long)ALIGN_SIZE);
896 ba->ba_1 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500897 k++;
898 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899 }
900 }
901 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
903 /* Allocation and initialization of Statistics block */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500904 size = sizeof(struct stat_block);
Joe Perchesd44570e2009-08-24 17:29:44 +0000905 mac_control->stats_mem =
906 pci_alloc_consistent(nic->pdev, size,
907 &mac_control->stats_mem_phy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
909 if (!mac_control->stats_mem) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700910 /*
911 * In case of failure, free_shared_mem() is called, which
912 * should free any memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913 * failure happened.
914 */
915 return -ENOMEM;
916 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400917 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 mac_control->stats_mem_sz = size;
919
920 tmp_v_addr = mac_control->stats_mem;
Joe Perchesd44570e2009-08-24 17:29:44 +0000921 mac_control->stats_info = (struct stat_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922 memset(tmp_v_addr, 0, size);
Breno Leitao3a228132010-03-04 10:40:44 +0000923 DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n",
924 dev_name(&nic->pdev->dev), (unsigned long long)tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400925 mac_control->stats_info->sw_stat.mem_allocated += mem_allocated;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 return SUCCESS;
927}
928
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700929/**
930 * free_shared_mem - Free the allocated Memory
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931 * @nic: Device private variable.
932 * Description: This function is to free all memory locations allocated by
933 * the init_shared_mem() function and return it to the kernel.
934 */
935
936static void free_shared_mem(struct s2io_nic *nic)
937{
938 int i, j, blk_cnt, size;
939 void *tmp_v_addr;
940 dma_addr_t tmp_p_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941 int lst_size, lst_per_page;
Micah Gruber8910b492007-07-09 11:29:04 +0800942 struct net_device *dev;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400943 int page_num = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +0000944 struct config_param *config;
945 struct mac_info *mac_control;
946 struct stat_block *stats;
947 struct swStat *swstats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
949 if (!nic)
950 return;
951
Micah Gruber8910b492007-07-09 11:29:04 +0800952 dev = nic->dev;
953
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954 config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000955 mac_control = &nic->mac_control;
956 stats = mac_control->stats_info;
957 swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Joe Perchesd44570e2009-08-24 17:29:44 +0000959 lst_size = sizeof(struct TxD) * config->max_txds;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960 lst_per_page = PAGE_SIZE / lst_size;
961
962 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000963 struct fifo_info *fifo = &mac_control->fifos[i];
964 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
965
966 page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 for (j = 0; j < page_num; j++) {
968 int mem_blks = (j * lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000969 struct list_info_hold *fli;
970
971 if (!fifo->list_info)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400972 return;
Joe Perches13d866a2009-08-24 17:29:41 +0000973
974 fli = &fifo->list_info[mem_blks];
975 if (!fli->list_virt_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 break;
977 pci_free_consistent(nic->pdev, PAGE_SIZE,
Joe Perches13d866a2009-08-24 17:29:41 +0000978 fli->list_virt_addr,
979 fli->list_phy_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000980 swstats->mem_freed += PAGE_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700982 /* If we got a zero DMA address during allocation,
983 * free the page now
984 */
985 if (mac_control->zerodma_virt_addr) {
986 pci_free_consistent(nic->pdev, PAGE_SIZE,
987 mac_control->zerodma_virt_addr,
988 (dma_addr_t)0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400989 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000990 "%s: Freeing TxDL with zero DMA address. "
991 "Virtual address %p\n",
992 dev->name, mac_control->zerodma_virt_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000993 swstats->mem_freed += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700994 }
Joe Perches13d866a2009-08-24 17:29:41 +0000995 kfree(fifo->list_info);
Joe Perches82c2d022009-08-24 17:29:48 +0000996 swstats->mem_freed += tx_cfg->fifo_len *
Joe Perchesd44570e2009-08-24 17:29:44 +0000997 sizeof(struct list_info_hold);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 }
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 size = SIZE_OF_BLOCK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001002 struct ring_info *ring = &mac_control->rings[i];
1003
1004 blk_cnt = ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001006 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
1007 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 if (tmp_v_addr == NULL)
1009 break;
1010 pci_free_consistent(nic->pdev, size,
1011 tmp_v_addr, tmp_p_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +00001012 swstats->mem_freed += size;
Joe Perches13d866a2009-08-24 17:29:41 +00001013 kfree(ring->rx_blocks[j].rxds);
Joe Perchesffb5df62009-08-24 17:29:47 +00001014 swstats->mem_freed += sizeof(struct rxd_info) *
1015 rxd_count[nic->rxd_mode];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016 }
1017 }
1018
Veena Parat6d517a22007-07-23 02:20:51 -04001019 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05001020 /* Freeing buffer storage addresses in 2BUFF mode. */
1021 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001022 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1023 struct ring_info *ring = &mac_control->rings[i];
1024
1025 blk_cnt = rx_cfg->num_rxd /
1026 (rxd_count[nic->rxd_mode] + 1);
Ananda Rajuda6971d2005-10-31 16:55:31 -05001027 for (j = 0; j < blk_cnt; j++) {
1028 int k = 0;
Joe Perches13d866a2009-08-24 17:29:41 +00001029 if (!ring->ba[j])
Ananda Rajuda6971d2005-10-31 16:55:31 -05001030 continue;
1031 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +00001032 struct buffAdd *ba = &ring->ba[j][k];
Ananda Rajuda6971d2005-10-31 16:55:31 -05001033 kfree(ba->ba_0_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001034 swstats->mem_freed +=
1035 BUF0_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001036 kfree(ba->ba_1_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001037 swstats->mem_freed +=
1038 BUF1_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001039 k++;
1040 }
Joe Perches13d866a2009-08-24 17:29:41 +00001041 kfree(ring->ba[j]);
Joe Perchesffb5df62009-08-24 17:29:47 +00001042 swstats->mem_freed += sizeof(struct buffAdd) *
1043 (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 }
Joe Perches13d866a2009-08-24 17:29:41 +00001045 kfree(ring->ba);
Joe Perchesffb5df62009-08-24 17:29:47 +00001046 swstats->mem_freed += sizeof(struct buffAdd *) *
1047 blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Surjit Reang2fda0962008-01-24 02:08:59 -08001051 for (i = 0; i < nic->config.tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001052 struct fifo_info *fifo = &mac_control->fifos[i];
1053 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1054
1055 if (fifo->ufo_in_band_v) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001056 swstats->mem_freed += tx_cfg->fifo_len *
1057 sizeof(u64);
Joe Perches13d866a2009-08-24 17:29:41 +00001058 kfree(fifo->ufo_in_band_v);
Surjit Reang2fda0962008-01-24 02:08:59 -08001059 }
1060 }
1061
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 if (mac_control->stats_mem) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001063 swstats->mem_freed += mac_control->stats_mem_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064 pci_free_consistent(nic->pdev,
1065 mac_control->stats_mem_sz,
1066 mac_control->stats_mem,
1067 mac_control->stats_mem_phy);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04001068 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069}
1070
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001071/**
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001072 * s2io_verify_pci_mode -
1073 */
1074
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001075static int s2io_verify_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001076{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001077 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001078 register u64 val64 = 0;
1079 int mode;
1080
1081 val64 = readq(&bar0->pci_mode);
1082 mode = (u8)GET_PCI_MODE(val64);
1083
Joe Perchesd44570e2009-08-24 17:29:44 +00001084 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001085 return -1; /* Unknown PCI mode */
1086 return mode;
1087}
1088
Ananda Rajuc92ca042006-04-21 19:18:03 -04001089#define NEC_VENID 0x1033
1090#define NEC_DEVID 0x0125
1091static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
1092{
1093 struct pci_dev *tdev = NULL;
Alan Cox26d36b62006-09-15 15:22:51 +01001094 while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
1095 if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) {
Ilpo Järvinen7ad62db2008-05-13 14:16:54 +03001096 if (tdev->bus == s2io_pdev->bus->parent) {
Alan Cox26d36b62006-09-15 15:22:51 +01001097 pci_dev_put(tdev);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001098 return 1;
Ilpo Järvinen7ad62db2008-05-13 14:16:54 +03001099 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001100 }
1101 }
1102 return 0;
1103}
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001104
Adrian Bunk7b32a312006-05-16 17:30:50 +02001105static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001106/**
1107 * s2io_print_pci_mode -
1108 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001109static int s2io_print_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001110{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001111 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001112 register u64 val64 = 0;
1113 int mode;
1114 struct config_param *config = &nic->config;
Joe Perches9e39f7c2009-08-25 08:52:00 +00001115 const char *pcimode;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001116
1117 val64 = readq(&bar0->pci_mode);
1118 mode = (u8)GET_PCI_MODE(val64);
1119
Joe Perchesd44570e2009-08-24 17:29:44 +00001120 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001121 return -1; /* Unknown PCI mode */
1122
Ananda Rajuc92ca042006-04-21 19:18:03 -04001123 config->bus_speed = bus_speed[mode];
1124
1125 if (s2io_on_nec_bridge(nic->pdev)) {
1126 DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001127 nic->dev->name);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001128 return mode;
1129 }
1130
Joe Perchesd44570e2009-08-24 17:29:44 +00001131 switch (mode) {
1132 case PCI_MODE_PCI_33:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001133 pcimode = "33MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001134 break;
1135 case PCI_MODE_PCI_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001136 pcimode = "66MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001137 break;
1138 case PCI_MODE_PCIX_M1_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001139 pcimode = "66MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001140 break;
1141 case PCI_MODE_PCIX_M1_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001142 pcimode = "100MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001143 break;
1144 case PCI_MODE_PCIX_M1_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001145 pcimode = "133MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001146 break;
1147 case PCI_MODE_PCIX_M2_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001148 pcimode = "133MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001149 break;
1150 case PCI_MODE_PCIX_M2_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001151 pcimode = "200MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001152 break;
1153 case PCI_MODE_PCIX_M2_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001154 pcimode = "266MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001155 break;
1156 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001157 pcimode = "unsupported bus!";
1158 mode = -1;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001159 }
1160
Joe Perches9e39f7c2009-08-25 08:52:00 +00001161 DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n",
1162 nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode);
1163
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001164 return mode;
1165}
1166
1167/**
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001168 * init_tti - Initialization transmit traffic interrupt scheme
1169 * @nic: device private variable
1170 * @link: link status (UP/DOWN) used to enable/disable continuous
1171 * transmit interrupts
1172 * Description: The function configures transmit traffic interrupts
1173 * Return Value: SUCCESS on success and
1174 * '-1' on failure
1175 */
1176
Adrian Bunk0d66afe2008-03-04 15:19:22 -08001177static int init_tti(struct s2io_nic *nic, int link)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001178{
1179 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1180 register u64 val64 = 0;
1181 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00001182 struct config_param *config = &nic->config;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001183
1184 for (i = 0; i < config->tx_fifo_num; i++) {
1185 /*
1186 * TTI Initialization. Default Tx timer gets us about
1187 * 250 interrupts per sec. Continuous interrupts are enabled
1188 * by default.
1189 */
1190 if (nic->device_type == XFRAME_II_DEVICE) {
1191 int count = (nic->config.bus_speed * 125)/2;
1192 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
1193 } else
1194 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1195
1196 val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001197 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1198 TTI_DATA1_MEM_TX_URNG_C(0x30) |
1199 TTI_DATA1_MEM_TX_TIMER_AC_EN;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001200 if (i == 0)
1201 if (use_continuous_tx_intrs && (link == LINK_UP))
1202 val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001203 writeq(val64, &bar0->tti_data1_mem);
1204
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001205 if (nic->config.intr_type == MSI_X) {
1206 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1207 TTI_DATA2_MEM_TX_UFC_B(0x100) |
1208 TTI_DATA2_MEM_TX_UFC_C(0x200) |
1209 TTI_DATA2_MEM_TX_UFC_D(0x300);
1210 } else {
1211 if ((nic->config.tx_steering_type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00001212 TX_DEFAULT_STEERING) &&
1213 (config->tx_fifo_num > 1) &&
1214 (i >= nic->udp_fifo_idx) &&
1215 (i < (nic->udp_fifo_idx +
1216 nic->total_udp_fifos)))
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001217 val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) |
1218 TTI_DATA2_MEM_TX_UFC_B(0x80) |
1219 TTI_DATA2_MEM_TX_UFC_C(0x100) |
1220 TTI_DATA2_MEM_TX_UFC_D(0x120);
1221 else
1222 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1223 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1224 TTI_DATA2_MEM_TX_UFC_C(0x40) |
1225 TTI_DATA2_MEM_TX_UFC_D(0x80);
1226 }
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001227
1228 writeq(val64, &bar0->tti_data2_mem);
1229
Joe Perchesd44570e2009-08-24 17:29:44 +00001230 val64 = TTI_CMD_MEM_WE |
1231 TTI_CMD_MEM_STROBE_NEW_CMD |
1232 TTI_CMD_MEM_OFFSET(i);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001233 writeq(val64, &bar0->tti_command_mem);
1234
1235 if (wait_for_cmd_complete(&bar0->tti_command_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00001236 TTI_CMD_MEM_STROBE_NEW_CMD,
1237 S2IO_BIT_RESET) != SUCCESS)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001238 return FAILURE;
1239 }
1240
1241 return SUCCESS;
1242}
1243
1244/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001245 * init_nic - Initialization of hardware
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001246 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001247 * Description: The function sequentially configures every block
1248 * of the H/W from their reset values.
1249 * Return Value: SUCCESS on success and
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 * '-1' on failure (endian settings incorrect).
1251 */
1252
1253static int init_nic(struct s2io_nic *nic)
1254{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001255 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 struct net_device *dev = nic->dev;
1257 register u64 val64 = 0;
1258 void __iomem *add;
1259 u32 time;
1260 int i, j;
Ananda Rajuc92ca042006-04-21 19:18:03 -04001261 int dtx_cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 unsigned long long mem_share;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001263 int mem_size;
Joe Perchesffb5df62009-08-24 17:29:47 +00001264 struct config_param *config = &nic->config;
1265 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001267 /* to set the swapper controle on the card */
Joe Perchesd44570e2009-08-24 17:29:44 +00001268 if (s2io_set_swapper(nic)) {
1269 DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n");
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001270 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 }
1272
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001273 /*
1274 * Herc requires EOI to be removed from reset before XGXS, so..
1275 */
1276 if (nic->device_type & XFRAME_II_DEVICE) {
1277 val64 = 0xA500000000ULL;
1278 writeq(val64, &bar0->sw_reset);
1279 msleep(500);
1280 val64 = readq(&bar0->sw_reset);
1281 }
1282
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283 /* Remove XGXS from reset state */
1284 val64 = 0;
1285 writeq(val64, &bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 msleep(500);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001287 val64 = readq(&bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288
Sreenivasa Honnur79620242007-12-05 23:59:28 -05001289 /* Ensure that it's safe to access registers by checking
1290 * RIC_RUNNING bit is reset. Check is valid only for XframeII.
1291 */
1292 if (nic->device_type == XFRAME_II_DEVICE) {
1293 for (i = 0; i < 50; i++) {
1294 val64 = readq(&bar0->adapter_status);
1295 if (!(val64 & ADAPTER_STATUS_RIC_RUNNING))
1296 break;
1297 msleep(10);
1298 }
1299 if (i == 50)
1300 return -ENODEV;
1301 }
1302
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 /* Enable Receiving broadcasts */
1304 add = &bar0->mac_cfg;
1305 val64 = readq(&bar0->mac_cfg);
1306 val64 |= MAC_RMAC_BCAST_ENABLE;
1307 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00001308 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1310 writel((u32) (val64 >> 32), (add + 4));
1311
1312 /* Read registers in all blocks */
1313 val64 = readq(&bar0->mac_int_mask);
1314 val64 = readq(&bar0->mc_int_mask);
1315 val64 = readq(&bar0->xgxs_int_mask);
1316
1317 /* Set MTU */
1318 val64 = dev->mtu;
1319 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
1320
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001321 if (nic->device_type & XFRAME_II_DEVICE) {
1322 while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07001323 SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324 &bar0->dtx_control, UF);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001325 if (dtx_cnt & 0x1)
1326 msleep(1); /* Necessary!! */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 dtx_cnt++;
1328 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001329 } else {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001330 while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
1331 SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
1332 &bar0->dtx_control, UF);
1333 val64 = readq(&bar0->dtx_control);
1334 dtx_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 }
1336 }
1337
1338 /* Tx DMA Initialization */
1339 val64 = 0;
1340 writeq(val64, &bar0->tx_fifo_partition_0);
1341 writeq(val64, &bar0->tx_fifo_partition_1);
1342 writeq(val64, &bar0->tx_fifo_partition_2);
1343 writeq(val64, &bar0->tx_fifo_partition_3);
1344
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 for (i = 0, j = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001346 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1347
1348 val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) |
1349 vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350
1351 if (i == (config->tx_fifo_num - 1)) {
1352 if (i % 2 == 0)
1353 i++;
1354 }
1355
1356 switch (i) {
1357 case 1:
1358 writeq(val64, &bar0->tx_fifo_partition_0);
1359 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001360 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 break;
1362 case 3:
1363 writeq(val64, &bar0->tx_fifo_partition_1);
1364 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001365 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 break;
1367 case 5:
1368 writeq(val64, &bar0->tx_fifo_partition_2);
1369 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001370 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 break;
1372 case 7:
1373 writeq(val64, &bar0->tx_fifo_partition_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001374 val64 = 0;
1375 j = 0;
1376 break;
1377 default:
1378 j++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 break;
1380 }
1381 }
1382
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001383 /*
1384 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1385 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1386 */
Joe Perchesd44570e2009-08-24 17:29:44 +00001387 if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001388 writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
1389
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 val64 = readq(&bar0->tx_fifo_partition_0);
1391 DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001392 &bar0->tx_fifo_partition_0, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001394 /*
1395 * Initialization of Tx_PA_CONFIG register to ignore packet
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 * integrity checking.
1397 */
1398 val64 = readq(&bar0->tx_pa_cfg);
Joe Perchesd44570e2009-08-24 17:29:44 +00001399 val64 |= TX_PA_CFG_IGNORE_FRM_ERR |
1400 TX_PA_CFG_IGNORE_SNAP_OUI |
1401 TX_PA_CFG_IGNORE_LLC_CTRL |
1402 TX_PA_CFG_IGNORE_L2_ERR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 writeq(val64, &bar0->tx_pa_cfg);
1404
1405 /* Rx DMA intialization. */
1406 val64 = 0;
1407 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001408 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1409
1410 val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 }
1412 writeq(val64, &bar0->rx_queue_priority);
1413
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001414 /*
1415 * Allocating equal share of memory to all the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 * configured Rings.
1417 */
1418 val64 = 0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001419 if (nic->device_type & XFRAME_II_DEVICE)
1420 mem_size = 32;
1421 else
1422 mem_size = 64;
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 for (i = 0; i < config->rx_ring_num; i++) {
1425 switch (i) {
1426 case 0:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001427 mem_share = (mem_size / config->rx_ring_num +
1428 mem_size % config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429 val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share);
1430 continue;
1431 case 1:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001432 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433 val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share);
1434 continue;
1435 case 2:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001436 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437 val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share);
1438 continue;
1439 case 3:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001440 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share);
1442 continue;
1443 case 4:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001444 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share);
1446 continue;
1447 case 5:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001448 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share);
1450 continue;
1451 case 6:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001452 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share);
1454 continue;
1455 case 7:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001456 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share);
1458 continue;
1459 }
1460 }
1461 writeq(val64, &bar0->rx_queue_cfg);
1462
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001463 /*
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001464 * Filling Tx round robin registers
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001465 * as per the number of FIFOs for equal scheduling priority
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001467 switch (config->tx_fifo_num) {
1468 case 1:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001469 val64 = 0x0;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001470 writeq(val64, &bar0->tx_w_round_robin_0);
1471 writeq(val64, &bar0->tx_w_round_robin_1);
1472 writeq(val64, &bar0->tx_w_round_robin_2);
1473 writeq(val64, &bar0->tx_w_round_robin_3);
1474 writeq(val64, &bar0->tx_w_round_robin_4);
1475 break;
1476 case 2:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001477 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001478 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001479 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001480 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001481 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001482 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001483 writeq(val64, &bar0->tx_w_round_robin_4);
1484 break;
1485 case 3:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001486 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001487 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001488 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001489 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001490 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001491 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001492 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001493 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001494 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001495 writeq(val64, &bar0->tx_w_round_robin_4);
1496 break;
1497 case 4:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001498 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001499 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001500 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001501 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001502 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001503 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001504 writeq(val64, &bar0->tx_w_round_robin_4);
1505 break;
1506 case 5:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001507 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001508 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001509 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001510 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001511 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001512 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001513 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001514 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001515 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001516 writeq(val64, &bar0->tx_w_round_robin_4);
1517 break;
1518 case 6:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001519 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001520 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001521 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001522 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001523 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001524 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001525 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001526 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001527 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001528 writeq(val64, &bar0->tx_w_round_robin_4);
1529 break;
1530 case 7:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001531 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001532 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001533 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001534 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001535 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001536 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001537 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001538 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001539 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001540 writeq(val64, &bar0->tx_w_round_robin_4);
1541 break;
1542 case 8:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001543 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001544 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001545 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001546 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001547 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001548 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001549 writeq(val64, &bar0->tx_w_round_robin_4);
1550 break;
1551 }
1552
Ananda Rajub41477f2006-07-24 19:52:49 -04001553 /* Enable all configured Tx FIFO partitions */
Ananda Raju5d3213c2006-04-21 19:23:26 -04001554 val64 = readq(&bar0->tx_fifo_partition_0);
1555 val64 |= (TX_FIFO_PARTITION_EN);
1556 writeq(val64, &bar0->tx_fifo_partition_0);
1557
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001558 /* Filling the Rx round robin registers as per the
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001559 * number of Rings and steering based on QoS with
1560 * equal priority.
1561 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001562 switch (config->rx_ring_num) {
1563 case 1:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001564 val64 = 0x0;
1565 writeq(val64, &bar0->rx_w_round_robin_0);
1566 writeq(val64, &bar0->rx_w_round_robin_1);
1567 writeq(val64, &bar0->rx_w_round_robin_2);
1568 writeq(val64, &bar0->rx_w_round_robin_3);
1569 writeq(val64, &bar0->rx_w_round_robin_4);
1570
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001571 val64 = 0x8080808080808080ULL;
1572 writeq(val64, &bar0->rts_qos_steering);
1573 break;
1574 case 2:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001575 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001576 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001577 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001578 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001579 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001580 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001581 writeq(val64, &bar0->rx_w_round_robin_4);
1582
1583 val64 = 0x8080808040404040ULL;
1584 writeq(val64, &bar0->rts_qos_steering);
1585 break;
1586 case 3:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001587 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001588 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001589 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001590 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001591 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001592 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001593 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001594 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001595 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001596 writeq(val64, &bar0->rx_w_round_robin_4);
1597
1598 val64 = 0x8080804040402020ULL;
1599 writeq(val64, &bar0->rts_qos_steering);
1600 break;
1601 case 4:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001602 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001603 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001604 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001605 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001606 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001607 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001608 writeq(val64, &bar0->rx_w_round_robin_4);
1609
1610 val64 = 0x8080404020201010ULL;
1611 writeq(val64, &bar0->rts_qos_steering);
1612 break;
1613 case 5:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001614 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001615 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001616 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001617 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001618 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001619 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001620 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001621 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001622 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001623 writeq(val64, &bar0->rx_w_round_robin_4);
1624
1625 val64 = 0x8080404020201008ULL;
1626 writeq(val64, &bar0->rts_qos_steering);
1627 break;
1628 case 6:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001629 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001630 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001631 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001632 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001633 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001634 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001635 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001636 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001637 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001638 writeq(val64, &bar0->rx_w_round_robin_4);
1639
1640 val64 = 0x8080404020100804ULL;
1641 writeq(val64, &bar0->rts_qos_steering);
1642 break;
1643 case 7:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001644 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001645 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001646 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001647 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001648 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001649 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001650 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001651 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001652 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001653 writeq(val64, &bar0->rx_w_round_robin_4);
1654
1655 val64 = 0x8080402010080402ULL;
1656 writeq(val64, &bar0->rts_qos_steering);
1657 break;
1658 case 8:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001659 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001660 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001661 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001662 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001663 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001664 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001665 writeq(val64, &bar0->rx_w_round_robin_4);
1666
1667 val64 = 0x8040201008040201ULL;
1668 writeq(val64, &bar0->rts_qos_steering);
1669 break;
1670 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671
1672 /* UDP Fix */
1673 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001674 for (i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 writeq(val64, &bar0->rts_frm_len_n[i]);
1676
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001677 /* Set the default rts frame length for the rings configured */
1678 val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22);
1679 for (i = 0 ; i < config->rx_ring_num ; i++)
1680 writeq(val64, &bar0->rts_frm_len_n[i]);
1681
1682 /* Set the frame length for the configured rings
1683 * desired by the user
1684 */
1685 for (i = 0; i < config->rx_ring_num; i++) {
1686 /* If rts_frm_len[i] == 0 then it is assumed that user not
1687 * specified frame length steering.
1688 * If the user provides the frame length then program
1689 * the rts_frm_len register for those values or else
1690 * leave it as it is.
1691 */
1692 if (rts_frm_len[i] != 0) {
1693 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]),
Joe Perchesd44570e2009-08-24 17:29:44 +00001694 &bar0->rts_frm_len_n[i]);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001695 }
1696 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001697
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001698 /* Disable differentiated services steering logic */
1699 for (i = 0; i < 64; i++) {
1700 if (rts_ds_steer(nic, i, 0) == FAILURE) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001701 DBG_PRINT(ERR_DBG,
1702 "%s: rts_ds_steer failed on codepoint %d\n",
1703 dev->name, i);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001704 return -ENODEV;
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001705 }
1706 }
1707
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001708 /* Program statistics memory */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709 writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001711 if (nic->device_type == XFRAME_II_DEVICE) {
1712 val64 = STAT_BC(0x320);
1713 writeq(val64, &bar0->stat_byte_cnt);
1714 }
1715
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001716 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717 * Initializing the sampling rate for the device to calculate the
1718 * bandwidth utilization.
1719 */
1720 val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001721 MAC_RX_LINK_UTIL_VAL(rmac_util_period);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722 writeq(val64, &bar0->mac_link_util);
1723
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001724 /*
1725 * Initializing the Transmit and Receive Traffic Interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726 * Scheme.
1727 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001728
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001729 /* Initialize TTI */
1730 if (SUCCESS != init_tti(nic, nic->last_link_state))
1731 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001733 /* RTI Initialization */
1734 if (nic->device_type == XFRAME_II_DEVICE) {
1735 /*
1736 * Programmed to generate Apprx 500 Intrs per
1737 * second
1738 */
1739 int count = (nic->config.bus_speed * 125)/4;
1740 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
1741 } else
1742 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1743 val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001744 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1745 RTI_DATA1_MEM_RX_URNG_C(0x30) |
1746 RTI_DATA1_MEM_RX_TIMER_AC_EN;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001747
1748 writeq(val64, &bar0->rti_data1_mem);
1749
1750 val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
1751 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1752 if (nic->config.intr_type == MSI_X)
Joe Perchesd44570e2009-08-24 17:29:44 +00001753 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) |
1754 RTI_DATA2_MEM_RX_UFC_D(0x40));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001755 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001756 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) |
1757 RTI_DATA2_MEM_RX_UFC_D(0x80));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001758 writeq(val64, &bar0->rti_data2_mem);
1759
1760 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001761 val64 = RTI_CMD_MEM_WE |
1762 RTI_CMD_MEM_STROBE_NEW_CMD |
1763 RTI_CMD_MEM_OFFSET(i);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001764 writeq(val64, &bar0->rti_command_mem);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001765
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001766 /*
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001767 * Once the operation completes, the Strobe bit of the
1768 * command register will be reset. We poll for this
1769 * particular condition. We wait for a maximum of 500ms
1770 * for the operation to complete, if it's not complete
1771 * by then we return error.
1772 */
1773 time = 0;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00001774 while (true) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001775 val64 = readq(&bar0->rti_command_mem);
1776 if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD))
1777 break;
1778
1779 if (time > 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001780 DBG_PRINT(ERR_DBG, "%s: RTI init failed\n",
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001781 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001782 return -ENODEV;
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -07001783 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001784 time++;
1785 msleep(50);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787 }
1788
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001789 /*
1790 * Initializing proper values as Pause threshold into all
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 * the 8 Queues on Rx side.
1792 */
1793 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3);
1794 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
1795
1796 /* Disable RMAC PAD STRIPPING */
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01001797 add = &bar0->mac_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798 val64 = readq(&bar0->mac_cfg);
1799 val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
1800 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1801 writel((u32) (val64), add);
1802 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1803 writel((u32) (val64 >> 32), (add + 4));
1804 val64 = readq(&bar0->mac_cfg);
1805
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05001806 /* Enable FCS stripping by adapter */
1807 add = &bar0->mac_cfg;
1808 val64 = readq(&bar0->mac_cfg);
1809 val64 |= MAC_CFG_RMAC_STRIP_FCS;
1810 if (nic->device_type == XFRAME_II_DEVICE)
1811 writeq(val64, &bar0->mac_cfg);
1812 else {
1813 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1814 writel((u32) (val64), add);
1815 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1816 writel((u32) (val64 >> 32), (add + 4));
1817 }
1818
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001819 /*
1820 * Set the time value to be inserted in the pause frame
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 * generated by xena.
1822 */
1823 val64 = readq(&bar0->rmac_pause_cfg);
1824 val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1825 val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time);
1826 writeq(val64, &bar0->rmac_pause_cfg);
1827
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001828 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829 * Set the Threshold Limit for Generating the pause frame
1830 * If the amount of data in any Queue exceeds ratio of
1831 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1832 * pause frame is generated
1833 */
1834 val64 = 0;
1835 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001836 val64 |= (((u64)0xFF00 |
1837 nic->mac_control.mc_pause_threshold_q0q3)
1838 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839 }
1840 writeq(val64, &bar0->mc_pause_thresh_q0q3);
1841
1842 val64 = 0;
1843 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001844 val64 |= (((u64)0xFF00 |
1845 nic->mac_control.mc_pause_threshold_q4q7)
1846 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847 }
1848 writeq(val64, &bar0->mc_pause_thresh_q4q7);
1849
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001850 /*
1851 * TxDMA will stop Read request if the number of read split has
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 * exceeded the limit pointed by shared_splits
1853 */
1854 val64 = readq(&bar0->pic_control);
1855 val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
1856 writeq(val64, &bar0->pic_control);
1857
Ananda Raju863c11a2006-04-21 19:03:13 -04001858 if (nic->config.bus_speed == 266) {
1859 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
1860 writeq(0x0, &bar0->read_retry_delay);
1861 writeq(0x0, &bar0->write_retry_delay);
1862 }
1863
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001864 /*
1865 * Programming the Herc to split every write transaction
1866 * that does not start on an ADB to reduce disconnects.
1867 */
1868 if (nic->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05001869 val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
1870 MISC_LINK_STABILITY_PRD(3);
Ananda Raju863c11a2006-04-21 19:03:13 -04001871 writeq(val64, &bar0->misc_control);
1872 val64 = readq(&bar0->pic_control2);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07001873 val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15));
Ananda Raju863c11a2006-04-21 19:03:13 -04001874 writeq(val64, &bar0->pic_control2);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001875 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001876 if (strstr(nic->product_name, "CX4")) {
1877 val64 = TMAC_AVG_IPG(0x17);
1878 writeq(val64, &bar0->tmac_avg_ipg);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001879 }
1880
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881 return SUCCESS;
1882}
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001883#define LINK_UP_DOWN_INTERRUPT 1
1884#define MAC_RMAC_ERR_TIMER 2
1885
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001886static int s2io_link_fault_indication(struct s2io_nic *nic)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001887{
1888 if (nic->device_type == XFRAME_II_DEVICE)
1889 return LINK_UP_DOWN_INTERRUPT;
1890 else
1891 return MAC_RMAC_ERR_TIMER;
1892}
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07001893
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001894/**
1895 * do_s2io_write_bits - update alarm bits in alarm register
1896 * @value: alarm bits
1897 * @flag: interrupt status
1898 * @addr: address value
1899 * Description: update alarm bits in alarm register
1900 * Return Value:
1901 * NONE.
1902 */
1903static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr)
1904{
1905 u64 temp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001907 temp64 = readq(addr);
1908
Joe Perchesd44570e2009-08-24 17:29:44 +00001909 if (flag == ENABLE_INTRS)
1910 temp64 &= ~((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001911 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001912 temp64 |= ((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001913 writeq(temp64, addr);
1914}
1915
Stephen Hemminger43b7c452007-10-05 12:39:21 -07001916static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001917{
1918 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1919 register u64 gen_int_mask = 0;
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001920 u64 interruptible;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001921
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001922 writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001923 if (mask & TX_DMA_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001924 gen_int_mask |= TXDMA_INT_M;
1925
1926 do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001927 TXDMA_PCC_INT | TXDMA_TTI_INT |
1928 TXDMA_LSO_INT | TXDMA_TPA_INT |
1929 TXDMA_SM_INT, flag, &bar0->txdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001930
1931 do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001932 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
1933 PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag,
1934 &bar0->pfc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001935
1936 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001937 TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR |
1938 TDA_PCIX_ERR, flag, &bar0->tda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001939
1940 do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001941 PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
1942 PCC_N_SERR | PCC_6_COF_OV_ERR |
1943 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
1944 PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR |
1945 PCC_TXB_ECC_SG_ERR,
1946 flag, &bar0->pcc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001947
1948 do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001949 TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001950
1951 do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001952 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM |
1953 LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
1954 flag, &bar0->lso_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001955
1956 do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP,
Joe Perchesd44570e2009-08-24 17:29:44 +00001957 flag, &bar0->tpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001958
1959 do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001960 }
1961
1962 if (mask & TX_MAC_INTR) {
1963 gen_int_mask |= TXMAC_INT_M;
1964 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001965 &bar0->mac_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001966 do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001967 TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
1968 TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
1969 flag, &bar0->mac_tmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001970 }
1971
1972 if (mask & TX_XGXS_INTR) {
1973 gen_int_mask |= TXXGXS_INT_M;
1974 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001975 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001976 do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001977 TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
1978 flag, &bar0->xgxs_txgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001979 }
1980
1981 if (mask & RX_DMA_INTR) {
1982 gen_int_mask |= RXDMA_INT_M;
1983 do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M |
Joe Perchesd44570e2009-08-24 17:29:44 +00001984 RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M,
1985 flag, &bar0->rxdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001986 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001987 RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM |
1988 RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR |
1989 RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001990 do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn |
Joe Perchesd44570e2009-08-24 17:29:44 +00001991 PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn |
1992 PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag,
1993 &bar0->prc_pcix_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001994 do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001995 RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag,
1996 &bar0->rpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001997 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001998 RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM |
1999 RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR |
2000 RDA_FRM_ECC_SG_ERR |
2001 RDA_MISC_ERR|RDA_PCIX_ERR,
2002 flag, &bar0->rda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002003 do_s2io_write_bits(RTI_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00002004 RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
2005 flag, &bar0->rti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002006 }
2007
2008 if (mask & RX_MAC_INTR) {
2009 gen_int_mask |= RXMAC_INT_M;
2010 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002011 &bar0->mac_int_mask);
2012 interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
2013 RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
2014 RMAC_DOUBLE_ECC_ERR);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04002015 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER)
2016 interruptible |= RMAC_LINK_STATE_CHANGE_INT;
2017 do_s2io_write_bits(interruptible,
Joe Perchesd44570e2009-08-24 17:29:44 +00002018 flag, &bar0->mac_rmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002019 }
2020
Joe Perchesd44570e2009-08-24 17:29:44 +00002021 if (mask & RX_XGXS_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002022 gen_int_mask |= RXXGXS_INT_M;
2023 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002024 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002025 do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002026 &bar0->xgxs_rxgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002027 }
2028
2029 if (mask & MC_INTR) {
2030 gen_int_mask |= MC_INT_M;
Joe Perchesd44570e2009-08-24 17:29:44 +00002031 do_s2io_write_bits(MC_INT_MASK_MC_INT,
2032 flag, &bar0->mc_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002033 do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG |
Joe Perchesd44570e2009-08-24 17:29:44 +00002034 MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag,
2035 &bar0->mc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002036 }
2037 nic->general_int_mask = gen_int_mask;
2038
2039 /* Remove this line when alarm interrupts are enabled */
2040 nic->general_int_mask = 0;
2041}
Joe Perchesd44570e2009-08-24 17:29:44 +00002042
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002043/**
2044 * en_dis_able_nic_intrs - Enable or Disable the interrupts
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 * @nic: device private variable,
2046 * @mask: A mask indicating which Intr block must be modified and,
2047 * @flag: A flag indicating whether to enable or disable the Intrs.
2048 * Description: This function will either disable or enable the interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002049 * depending on the flag argument. The mask argument can be used to
2050 * enable/disable any Intr block.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051 * Return Value: NONE.
2052 */
2053
2054static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
2055{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002056 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002057 register u64 temp64 = 0, intr_mask = 0;
2058
2059 intr_mask = nic->general_int_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002060
2061 /* Top level interrupt classification */
2062 /* PIC Interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002063 if (mask & TX_PIC_INTR) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064 /* Enable PIC Intrs in the general intr mask register */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002065 intr_mask |= TXPIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002066 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002067 /*
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002068 * If Hercules adapter enable GPIO otherwise
Ananda Rajub41477f2006-07-24 19:52:49 -04002069 * disable all PCIX, Flash, MDIO, IIC and GPIO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002070 * interrupts for now.
2071 * TODO
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002073 if (s2io_link_fault_indication(nic) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002074 LINK_UP_DOWN_INTERRUPT) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002075 do_s2io_write_bits(PIC_INT_GPIO, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002076 &bar0->pic_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002077 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002078 &bar0->gpio_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002079 } else
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002080 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002082 /*
2083 * Disable PIC Intrs in the general
2084 * intr mask register
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085 */
2086 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087 }
2088 }
2089
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 /* Tx traffic interrupts */
2091 if (mask & TX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002092 intr_mask |= TXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002094 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095 * Enable all the Tx side interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002096 * writing 0 Enables all 64 TX interrupt levels
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097 */
2098 writeq(0x0, &bar0->tx_traffic_mask);
2099 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002100 /*
2101 * Disable Tx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102 * register.
2103 */
2104 writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105 }
2106 }
2107
2108 /* Rx traffic interrupts */
2109 if (mask & RX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002110 intr_mask |= RXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 if (flag == ENABLE_INTRS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112 /* writing 0 Enables all 8 RX interrupt levels */
2113 writeq(0x0, &bar0->rx_traffic_mask);
2114 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002115 /*
2116 * Disable Rx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117 * register.
2118 */
2119 writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 }
2121 }
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002122
2123 temp64 = readq(&bar0->general_int_mask);
2124 if (flag == ENABLE_INTRS)
Joe Perchesd44570e2009-08-24 17:29:44 +00002125 temp64 &= ~((u64)intr_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002126 else
2127 temp64 = DISABLE_ALL_INTRS;
2128 writeq(temp64, &bar0->general_int_mask);
2129
2130 nic->general_int_mask = readq(&bar0->general_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131}
2132
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002133/**
2134 * verify_pcc_quiescent- Checks for PCC quiescent state
2135 * Return: 1 If PCC is quiescence
2136 * 0 If PCC is not quiescence
2137 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002138static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002139{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002140 int ret = 0, herc;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002141 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002142 u64 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002143
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002144 herc = (sp->device_type == XFRAME_II_DEVICE);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002145
Tobias Klauserf957bcf2009-06-04 23:07:59 +00002146 if (flag == false) {
Auke Kok44c10132007-06-08 15:46:36 -07002147 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002148 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002149 ret = 1;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002150 } else {
2151 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002152 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002153 }
2154 } else {
Auke Kok44c10132007-06-08 15:46:36 -07002155 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002156 if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002157 ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002158 ret = 1;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002159 } else {
2160 if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002161 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002162 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002163 }
2164 }
2165
2166 return ret;
2167}
2168/**
2169 * verify_xena_quiescence - Checks whether the H/W is ready
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 * Description: Returns whether the H/W is ready to go or not. Depending
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002171 * on whether adapter enable bit was written or not the comparison
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172 * differs and the calling function passes the input argument flag to
2173 * indicate this.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002174 * Return: 1 If xena is quiescence
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 * 0 If Xena is not quiescence
2176 */
2177
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002178static int verify_xena_quiescence(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002180 int mode;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002181 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002182 u64 val64 = readq(&bar0->adapter_status);
2183 mode = s2io_verify_pci_mode(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002185 if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002186 DBG_PRINT(ERR_DBG, "TDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002187 return 0;
2188 }
2189 if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002190 DBG_PRINT(ERR_DBG, "RDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002191 return 0;
2192 }
2193 if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002194 DBG_PRINT(ERR_DBG, "PFC is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002195 return 0;
2196 }
2197 if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002198 DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002199 return 0;
2200 }
2201 if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002202 DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002203 return 0;
2204 }
2205 if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002206 DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002207 return 0;
2208 }
2209 if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002210 DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002211 return 0;
2212 }
2213 if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002214 DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002215 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216 }
2217
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002218 /*
2219 * In PCI 33 mode, the P_PLL is not used, and therefore,
2220 * the the P_PLL_LOCK bit in the adapter_status register will
2221 * not be asserted.
2222 */
2223 if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002224 sp->device_type == XFRAME_II_DEVICE &&
2225 mode != PCI_MODE_PCI_33) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002226 DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002227 return 0;
2228 }
2229 if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002230 ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002231 DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002232 return 0;
2233 }
2234 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235}
2236
2237/**
2238 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2239 * @sp: Pointer to device specifc structure
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002240 * Description :
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 * New procedure to clear mac address reading problems on Alpha platforms
2242 *
2243 */
2244
Joe Perchesd44570e2009-08-24 17:29:44 +00002245static void fix_mac_address(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002247 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248 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);
David S. Millerd83d2822011-04-11 16:00:00 -07002253 (void) readq(&bar0->gpio_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254 }
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 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002356 * Dont see link state interrupts initially on some switches,
Ananda Rajuc92ca042006-04-21 19:18:03 -04002357 * 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;
Veena Parat6d517a22007-07-23 02:20:51 -04002730 struct RxD1 *rxdp1;
2731 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002732 struct mac_info *mac_control = &sp->mac_control;
2733 struct stat_block *stats = mac_control->stats_info;
2734 struct swStat *swstats = &stats->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002735
Ananda Rajuda6971d2005-10-31 16:55:31 -05002736 for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
2737 rxdp = mac_control->rings[ring_no].
Joe Perchesd44570e2009-08-24 17:29:44 +00002738 rx_blocks[blk].rxds[j].virt_addr;
2739 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
2740 if (!skb)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002741 continue;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002742 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002743 rxdp1 = (struct RxD1 *)rxdp;
2744 pci_unmap_single(sp->pdev,
2745 (dma_addr_t)rxdp1->Buffer0_ptr,
2746 dev->mtu +
2747 HEADER_ETHERNET_II_802_3_SIZE +
2748 HEADER_802_2_SIZE + HEADER_SNAP_SIZE,
2749 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002750 memset(rxdp, 0, sizeof(struct RxD1));
Joe Perchesd44570e2009-08-24 17:29:44 +00002751 } else if (sp->rxd_mode == RXD_MODE_3B) {
2752 rxdp3 = (struct RxD3 *)rxdp;
Joe Perchesd44570e2009-08-24 17:29:44 +00002753 pci_unmap_single(sp->pdev,
2754 (dma_addr_t)rxdp3->Buffer0_ptr,
2755 BUF0_LEN,
2756 PCI_DMA_FROMDEVICE);
2757 pci_unmap_single(sp->pdev,
2758 (dma_addr_t)rxdp3->Buffer1_ptr,
2759 BUF1_LEN,
2760 PCI_DMA_FROMDEVICE);
2761 pci_unmap_single(sp->pdev,
2762 (dma_addr_t)rxdp3->Buffer2_ptr,
2763 dev->mtu + 4,
2764 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002765 memset(rxdp, 0, sizeof(struct RxD3));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002766 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002767 swstats->mem_freed += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002768 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002769 mac_control->rings[ring_no].rx_bufs_left -= 1;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002770 }
2771}
2772
Linus Torvalds1da177e2005-04-16 15:20:36 -07002773/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002774 * free_rx_buffers - Frees all Rx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002775 * @sp: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002776 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002777 * This function will free all Rx buffers allocated by host.
2778 * Return Value:
2779 * NONE.
2780 */
2781
2782static void free_rx_buffers(struct s2io_nic *sp)
2783{
2784 struct net_device *dev = sp->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002785 int i, blk = 0, buf_cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002786 struct config_param *config = &sp->config;
2787 struct mac_info *mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002788
2789 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002790 struct ring_info *ring = &mac_control->rings[i];
2791
Ananda Rajuda6971d2005-10-31 16:55:31 -05002792 for (blk = 0; blk < rx_ring_sz[i]; blk++)
Joe Perchesd44570e2009-08-24 17:29:44 +00002793 free_rxd_blk(sp, i, blk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002794
Joe Perches13d866a2009-08-24 17:29:41 +00002795 ring->rx_curr_put_info.block_index = 0;
2796 ring->rx_curr_get_info.block_index = 0;
2797 ring->rx_curr_put_info.offset = 0;
2798 ring->rx_curr_get_info.offset = 0;
2799 ring->rx_bufs_left = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00002800 DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002801 dev->name, buf_cnt, i);
2802 }
2803}
2804
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002805static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring)
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002806{
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002807 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002808 DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n",
2809 ring->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002810 }
2811 return 0;
2812}
2813
Linus Torvalds1da177e2005-04-16 15:20:36 -07002814/**
2815 * s2io_poll - Rx interrupt handler for NAPI support
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002816 * @napi : pointer to the napi structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002817 * @budget : The number of packets that were budgeted to be processed
Linus Torvalds1da177e2005-04-16 15:20:36 -07002818 * during one pass through the 'Poll" function.
2819 * Description:
2820 * Comes into picture only if NAPI support has been incorporated. It does
2821 * the same thing that rx_intr_handler does, but not in a interrupt context
2822 * also It will process only a given number of packets.
2823 * Return value:
2824 * 0 on success and 1 if there are No Rx packets to be processed.
2825 */
2826
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002827static int s2io_poll_msix(struct napi_struct *napi, int budget)
2828{
2829 struct ring_info *ring = container_of(napi, struct ring_info, napi);
2830 struct net_device *dev = ring->dev;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002831 int pkts_processed = 0;
Al Viro1a79d1c2008-06-02 10:59:02 +01002832 u8 __iomem *addr = NULL;
2833 u8 val8 = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08002834 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002835 struct XENA_dev_config __iomem *bar0 = nic->bar0;
2836 int budget_org = budget;
2837
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002838 if (unlikely(!is_s2io_card_up(nic)))
2839 return 0;
2840
2841 pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002842 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002843
2844 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002845 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002846 /*Re Enable MSI-Rx Vector*/
Al Viro1a79d1c2008-06-02 10:59:02 +01002847 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002848 addr += 7 - ring->ring_no;
2849 val8 = (ring->ring_no == 0) ? 0x3f : 0xbf;
2850 writeb(val8, addr);
2851 val8 = readb(addr);
2852 }
2853 return pkts_processed;
2854}
Joe Perchesd44570e2009-08-24 17:29:44 +00002855
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002856static int s2io_poll_inta(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002857{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002858 struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002859 int pkts_processed = 0;
2860 int ring_pkts_processed, i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002861 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002862 int budget_org = budget;
Joe Perchesffb5df62009-08-24 17:29:47 +00002863 struct config_param *config = &nic->config;
2864 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002865
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002866 if (unlikely(!is_s2io_card_up(nic)))
2867 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002868
2869 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002870 struct ring_info *ring = &mac_control->rings[i];
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002871 ring_pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002872 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002873 pkts_processed += ring_pkts_processed;
2874 budget -= ring_pkts_processed;
2875 if (budget <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002876 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002877 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002878 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002879 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002880 /* Re enable the Rx interrupts for the ring */
2881 writeq(0, &bar0->rx_traffic_mask);
2882 readl(&bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002883 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002884 return pkts_processed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002885}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002886
Ananda Rajub41477f2006-07-24 19:52:49 -04002887#ifdef CONFIG_NET_POLL_CONTROLLER
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002888/**
Ananda Rajub41477f2006-07-24 19:52:49 -04002889 * s2io_netpoll - netpoll event handler entry point
Brian Haley612eff02006-06-15 14:36:36 -04002890 * @dev : pointer to the device structure.
2891 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04002892 * This function will be called by upper layer to check for events on the
2893 * interface in situations where interrupts are disabled. It is used for
2894 * specific in-kernel networking tasks, such as remote consoles and kernel
2895 * debugging over the network (example netdump in RedHat).
Brian Haley612eff02006-06-15 14:36:36 -04002896 */
Brian Haley612eff02006-06-15 14:36:36 -04002897static void s2io_netpoll(struct net_device *dev)
2898{
Wang Chen4cf16532008-11-12 23:38:14 -08002899 struct s2io_nic *nic = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002900 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ananda Rajub41477f2006-07-24 19:52:49 -04002901 u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
Brian Haley612eff02006-06-15 14:36:36 -04002902 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002903 struct config_param *config = &nic->config;
2904 struct mac_info *mac_control = &nic->mac_control;
Brian Haley612eff02006-06-15 14:36:36 -04002905
Linas Vepstasd796fdb2007-05-14 18:37:30 -05002906 if (pci_channel_offline(nic->pdev))
2907 return;
2908
Brian Haley612eff02006-06-15 14:36:36 -04002909 disable_irq(dev->irq);
2910
Brian Haley612eff02006-06-15 14:36:36 -04002911 writeq(val64, &bar0->rx_traffic_int);
Ananda Rajub41477f2006-07-24 19:52:49 -04002912 writeq(val64, &bar0->tx_traffic_int);
Brian Haley612eff02006-06-15 14:36:36 -04002913
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002914 /* we need to free up the transmitted skbufs or else netpoll will
Ananda Rajub41477f2006-07-24 19:52:49 -04002915 * run out of skbs and will fail and eventually netpoll application such
2916 * as netdump will fail.
2917 */
2918 for (i = 0; i < config->tx_fifo_num; i++)
2919 tx_intr_handler(&mac_control->fifos[i]);
2920
2921 /* check for received packet and indicate up to network */
Joe Perches13d866a2009-08-24 17:29:41 +00002922 for (i = 0; i < config->rx_ring_num; i++) {
2923 struct ring_info *ring = &mac_control->rings[i];
2924
2925 rx_intr_handler(ring, 0);
2926 }
Brian Haley612eff02006-06-15 14:36:36 -04002927
2928 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002929 struct ring_info *ring = &mac_control->rings[i];
2930
2931 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002932 DBG_PRINT(INFO_DBG,
2933 "%s: Out of memory in Rx Netpoll!!\n",
2934 dev->name);
Brian Haley612eff02006-06-15 14:36:36 -04002935 break;
2936 }
2937 }
Brian Haley612eff02006-06-15 14:36:36 -04002938 enable_irq(dev->irq);
Brian Haley612eff02006-06-15 14:36:36 -04002939}
2940#endif
2941
2942/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002943 * rx_intr_handler - Rx interrupt handler
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002944 * @ring_info: per ring structure.
2945 * @budget: budget for napi processing.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002946 * Description:
2947 * If the interrupt is because of a received frame or if the
Linus Torvalds1da177e2005-04-16 15:20:36 -07002948 * receive ring contains fresh as yet un-processed frames,this function is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002949 * called. It picks out the RxD at which place the last Rx processing had
2950 * stopped and sends the skb to the OSM's Rx handler and then increments
Linus Torvalds1da177e2005-04-16 15:20:36 -07002951 * the offset.
2952 * Return Value:
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002953 * No. of napi packets processed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002954 */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002955static int rx_intr_handler(struct ring_info *ring_data, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002956{
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002957 int get_block, put_block;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002958 struct rx_curr_get_info get_info, put_info;
2959 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002960 struct sk_buff *skb;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002961 int pkt_cnt = 0, napi_pkts = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002962 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00002963 struct RxD1 *rxdp1;
2964 struct RxD3 *rxdp3;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002965
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002966 get_info = ring_data->rx_curr_get_info;
2967 get_block = get_info.block_index;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002968 memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002969 put_block = put_info.block_index;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002970 rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002971
Ananda Rajuda6971d2005-10-31 16:55:31 -05002972 while (RXD_IS_UP2DT(rxdp)) {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002973 /*
2974 * If your are next to put index then it's
2975 * FIFO full condition
2976 */
Ananda Rajuda6971d2005-10-31 16:55:31 -05002977 if ((get_block == put_block) &&
2978 (get_info.offset + 1) == put_info.offset) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002979 DBG_PRINT(INTR_DBG, "%s: Ring Full\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00002980 ring_data->dev->name);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002981 break;
2982 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002983 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002984 if (skb == NULL) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002985 DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002986 ring_data->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002987 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002988 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002989 if (ring_data->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002990 rxdp1 = (struct RxD1 *)rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002991 pci_unmap_single(ring_data->pdev, (dma_addr_t)
Joe Perchesd44570e2009-08-24 17:29:44 +00002992 rxdp1->Buffer0_ptr,
2993 ring_data->mtu +
2994 HEADER_ETHERNET_II_802_3_SIZE +
2995 HEADER_802_2_SIZE +
2996 HEADER_SNAP_SIZE,
2997 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002998 } else if (ring_data->rxd_mode == RXD_MODE_3B) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002999 rxdp3 = (struct RxD3 *)rxdp;
3000 pci_dma_sync_single_for_cpu(ring_data->pdev,
3001 (dma_addr_t)rxdp3->Buffer0_ptr,
3002 BUF0_LEN,
3003 PCI_DMA_FROMDEVICE);
3004 pci_unmap_single(ring_data->pdev,
3005 (dma_addr_t)rxdp3->Buffer2_ptr,
3006 ring_data->mtu + 4,
3007 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05003008 }
Ananda Raju863c11a2006-04-21 19:03:13 -04003009 prefetch(skb->data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003010 rx_osm_handler(ring_data, rxdp);
3011 get_info.offset++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003012 ring_data->rx_curr_get_info.offset = get_info.offset;
3013 rxdp = ring_data->rx_blocks[get_block].
Joe Perchesd44570e2009-08-24 17:29:44 +00003014 rxds[get_info.offset].virt_addr;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003015 if (get_info.offset == rxd_count[ring_data->rxd_mode]) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003016 get_info.offset = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003017 ring_data->rx_curr_get_info.offset = get_info.offset;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003018 get_block++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003019 if (get_block == ring_data->block_count)
3020 get_block = 0;
3021 ring_data->rx_curr_get_info.block_index = get_block;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003022 rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
3023 }
3024
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003025 if (ring_data->nic->config.napi) {
3026 budget--;
3027 napi_pkts++;
3028 if (!budget)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003029 break;
3030 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003031 pkt_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003032 if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts))
3033 break;
3034 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003035 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003036 /* Clear all LRO sessions before exiting */
Joe Perchesd44570e2009-08-24 17:29:44 +00003037 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003038 struct lro *lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003039 if (lro->in_use) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003040 update_L3L4_header(ring_data->nic, lro);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05003041 queue_rx_frame(lro->parent, lro->vlan_tag);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003042 clear_lro_session(lro);
3043 }
3044 }
3045 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003046 return napi_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003047}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003048
3049/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003050 * tx_intr_handler - Transmit interrupt handler
3051 * @nic : device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003052 * Description:
3053 * If an interrupt was raised to indicate DMA complete of the
3054 * Tx packet, this function is called. It identifies the last TxD
3055 * whose buffer was freed and frees all skbs whose data have already
Linus Torvalds1da177e2005-04-16 15:20:36 -07003056 * DMA'ed into the NICs internal memory.
3057 * Return Value:
3058 * NONE
3059 */
3060
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003061static void tx_intr_handler(struct fifo_info *fifo_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003062{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003063 struct s2io_nic *nic = fifo_data->nic;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003064 struct tx_curr_get_info get_info, put_info;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003065 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003066 struct TxD *txdlp;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003067 int pkt_cnt = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08003068 unsigned long flags = 0;
Olaf Heringf9046eb2007-06-19 22:41:10 +02003069 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00003070 struct stat_block *stats = nic->mac_control.stats_info;
3071 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003072
Surjit Reang2fda0962008-01-24 02:08:59 -08003073 if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags))
Joe Perchesd44570e2009-08-24 17:29:44 +00003074 return;
Surjit Reang2fda0962008-01-24 02:08:59 -08003075
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003076 get_info = fifo_data->tx_curr_get_info;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003077 memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info));
Joe Perchesd44570e2009-08-24 17:29:44 +00003078 txdlp = (struct TxD *)
3079 fifo_data->list_info[get_info.offset].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003080 while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) &&
3081 (get_info.offset != put_info.offset) &&
3082 (txdlp->Host_Control)) {
3083 /* Check for TxD errors */
3084 if (txdlp->Control_1 & TXD_T_CODE) {
3085 unsigned long long err;
3086 err = txdlp->Control_1 & TXD_T_CODE;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003087 if (err & 0x1) {
Joe Perchesffb5df62009-08-24 17:29:47 +00003088 swstats->parity_err_cnt++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003089 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003090
3091 /* update t_code statistics */
Olaf Heringf9046eb2007-06-19 22:41:10 +02003092 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00003093 switch (err_mask) {
3094 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00003095 swstats->tx_buf_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003096 break;
3097
Joe Perchesd44570e2009-08-24 17:29:44 +00003098 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00003099 swstats->tx_desc_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003100 break;
3101
Joe Perchesd44570e2009-08-24 17:29:44 +00003102 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00003103 swstats->tx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003104 break;
3105
Joe Perchesd44570e2009-08-24 17:29:44 +00003106 case 10:
Joe Perchesffb5df62009-08-24 17:29:47 +00003107 swstats->tx_link_loss_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003108 break;
3109
Joe Perchesd44570e2009-08-24 17:29:44 +00003110 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00003111 swstats->tx_list_proc_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003112 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00003113 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003114 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003115
Ananda Rajufed5ecc2005-11-14 15:25:08 -05003116 skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003117 if (skb == NULL) {
Surjit Reang2fda0962008-01-24 02:08:59 -08003118 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Joe Perches9e39f7c2009-08-25 08:52:00 +00003119 DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n",
3120 __func__);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003121 return;
3122 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003123 pkt_cnt++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003124
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003125 /* Updating the statistics block */
Joe Perchesffb5df62009-08-24 17:29:47 +00003126 swstats->mem_freed += skb->truesize;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003127 dev_kfree_skb_irq(skb);
3128
3129 get_info.offset++;
Ananda Raju863c11a2006-04-21 19:03:13 -04003130 if (get_info.offset == get_info.fifo_len + 1)
3131 get_info.offset = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00003132 txdlp = (struct TxD *)
3133 fifo_data->list_info[get_info.offset].list_virt_addr;
3134 fifo_data->tx_curr_get_info.offset = get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003135 }
3136
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003137 s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq);
Surjit Reang2fda0962008-01-24 02:08:59 -08003138
3139 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003140}
3141
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003142/**
Ananda Rajubd1034f2006-04-21 19:20:22 -04003143 * s2io_mdio_write - Function to write in to MDIO registers
3144 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3145 * @addr : address value
3146 * @value : data value
3147 * @dev : pointer to net_device structure
3148 * Description:
3149 * This function is used to write values to the MDIO registers
3150 * NONE
3151 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003152static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value,
3153 struct net_device *dev)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003154{
Joe Perchesd44570e2009-08-24 17:29:44 +00003155 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08003156 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003157 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003158
Joe Perchesd44570e2009-08-24 17:29:44 +00003159 /* address transaction */
3160 val64 = MDIO_MMD_INDX_ADDR(addr) |
3161 MDIO_MMD_DEV_ADDR(mmd_type) |
3162 MDIO_MMS_PRT_ADDR(0x0);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003163 writeq(val64, &bar0->mdio_control);
3164 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3165 writeq(val64, &bar0->mdio_control);
3166 udelay(100);
3167
Joe Perchesd44570e2009-08-24 17:29:44 +00003168 /* Data transaction */
3169 val64 = MDIO_MMD_INDX_ADDR(addr) |
3170 MDIO_MMD_DEV_ADDR(mmd_type) |
3171 MDIO_MMS_PRT_ADDR(0x0) |
3172 MDIO_MDIO_DATA(value) |
3173 MDIO_OP(MDIO_OP_WRITE_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003174 writeq(val64, &bar0->mdio_control);
3175 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3176 writeq(val64, &bar0->mdio_control);
3177 udelay(100);
3178
Joe Perchesd44570e2009-08-24 17:29:44 +00003179 val64 = MDIO_MMD_INDX_ADDR(addr) |
3180 MDIO_MMD_DEV_ADDR(mmd_type) |
3181 MDIO_MMS_PRT_ADDR(0x0) |
3182 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003183 writeq(val64, &bar0->mdio_control);
3184 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3185 writeq(val64, &bar0->mdio_control);
3186 udelay(100);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003187}
3188
3189/**
3190 * s2io_mdio_read - Function to write in to MDIO registers
3191 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3192 * @addr : address value
3193 * @dev : pointer to net_device structure
3194 * Description:
3195 * This function is used to read values to the MDIO registers
3196 * NONE
3197 */
3198static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
3199{
3200 u64 val64 = 0x0;
3201 u64 rval64 = 0x0;
Wang Chen4cf16532008-11-12 23:38:14 -08003202 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003203 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003204
3205 /* address transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003206 val64 = val64 | (MDIO_MMD_INDX_ADDR(addr)
3207 | MDIO_MMD_DEV_ADDR(mmd_type)
3208 | MDIO_MMS_PRT_ADDR(0x0));
Ananda Rajubd1034f2006-04-21 19:20:22 -04003209 writeq(val64, &bar0->mdio_control);
3210 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3211 writeq(val64, &bar0->mdio_control);
3212 udelay(100);
3213
3214 /* Data transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003215 val64 = MDIO_MMD_INDX_ADDR(addr) |
3216 MDIO_MMD_DEV_ADDR(mmd_type) |
3217 MDIO_MMS_PRT_ADDR(0x0) |
3218 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003219 writeq(val64, &bar0->mdio_control);
3220 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3221 writeq(val64, &bar0->mdio_control);
3222 udelay(100);
3223
3224 /* Read the value from regs */
3225 rval64 = readq(&bar0->mdio_control);
3226 rval64 = rval64 & 0xFFFF0000;
3227 rval64 = rval64 >> 16;
3228 return rval64;
3229}
Joe Perchesd44570e2009-08-24 17:29:44 +00003230
Ananda Rajubd1034f2006-04-21 19:20:22 -04003231/**
3232 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
Uwe Kleine-Königfbfecd32009-10-28 20:11:04 +01003233 * @counter : counter value to be updated
Ananda Rajubd1034f2006-04-21 19:20:22 -04003234 * @flag : flag to indicate the status
3235 * @type : counter type
3236 * Description:
3237 * This function is to check the status of the xpak counters value
3238 * NONE
3239 */
3240
Joe Perchesd44570e2009-08-24 17:29:44 +00003241static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index,
3242 u16 flag, u16 type)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003243{
3244 u64 mask = 0x3;
3245 u64 val64;
3246 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00003247 for (i = 0; i < index; i++)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003248 mask = mask << 0x2;
3249
Joe Perchesd44570e2009-08-24 17:29:44 +00003250 if (flag > 0) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003251 *counter = *counter + 1;
3252 val64 = *regs_stat & mask;
3253 val64 = val64 >> (index * 0x2);
3254 val64 = val64 + 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00003255 if (val64 == 3) {
3256 switch (type) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003257 case 1:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003258 DBG_PRINT(ERR_DBG,
3259 "Take Xframe NIC out of service.\n");
3260 DBG_PRINT(ERR_DBG,
3261"Excessive temperatures may result in premature transceiver failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003262 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003263 case 2:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003264 DBG_PRINT(ERR_DBG,
3265 "Take Xframe NIC out of service.\n");
3266 DBG_PRINT(ERR_DBG,
3267"Excessive bias currents may indicate imminent laser diode failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003268 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003269 case 3:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003270 DBG_PRINT(ERR_DBG,
3271 "Take Xframe NIC out of service.\n");
3272 DBG_PRINT(ERR_DBG,
3273"Excessive laser output power may saturate far-end receiver.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003274 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003275 default:
Joe Perchesd44570e2009-08-24 17:29:44 +00003276 DBG_PRINT(ERR_DBG,
3277 "Incorrect XPAK Alarm type\n");
Ananda Rajubd1034f2006-04-21 19:20:22 -04003278 }
3279 val64 = 0x0;
3280 }
3281 val64 = val64 << (index * 0x2);
3282 *regs_stat = (*regs_stat & (~mask)) | (val64);
3283
3284 } else {
3285 *regs_stat = *regs_stat & (~mask);
3286 }
3287}
3288
3289/**
3290 * s2io_updt_xpak_counter - Function to update the xpak counters
3291 * @dev : pointer to net_device struct
3292 * Description:
3293 * This function is to upate the status of the xpak counters value
3294 * NONE
3295 */
3296static void s2io_updt_xpak_counter(struct net_device *dev)
3297{
3298 u16 flag = 0x0;
3299 u16 type = 0x0;
3300 u16 val16 = 0x0;
3301 u64 val64 = 0x0;
3302 u64 addr = 0x0;
3303
Wang Chen4cf16532008-11-12 23:38:14 -08003304 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003305 struct stat_block *stats = sp->mac_control.stats_info;
3306 struct xpakStat *xstats = &stats->xpak_stat;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003307
3308 /* Check the communication with the MDIO slave */
Ben Hutchings40239392009-04-29 08:13:29 +00003309 addr = MDIO_CTRL1;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003310 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003311 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00003312 if ((val64 == 0xFFFF) || (val64 == 0x0000)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003313 DBG_PRINT(ERR_DBG,
3314 "ERR: MDIO slave access failed - Returned %llx\n",
3315 (unsigned long long)val64);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003316 return;
3317 }
3318
Ben Hutchings40239392009-04-29 08:13:29 +00003319 /* Check for the expected value of control reg 1 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003320 if (val64 != MDIO_CTRL1_SPEED10G) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003321 DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "
3322 "Returned: %llx- Expected: 0x%x\n",
Ben Hutchings40239392009-04-29 08:13:29 +00003323 (unsigned long long)val64, MDIO_CTRL1_SPEED10G);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003324 return;
3325 }
3326
3327 /* Loading the DOM register to MDIO register */
3328 addr = 0xA100;
Ben Hutchings40239392009-04-29 08:13:29 +00003329 s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev);
3330 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003331
3332 /* Reading the Alarm flags */
3333 addr = 0xA070;
3334 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003335 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003336
3337 flag = CHECKBIT(val64, 0x7);
3338 type = 1;
Joe Perchesffb5df62009-08-24 17:29:47 +00003339 s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high,
3340 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003341 0x0, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003342
Joe Perchesd44570e2009-08-24 17:29:44 +00003343 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003344 xstats->alarm_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003345
3346 flag = CHECKBIT(val64, 0x3);
3347 type = 2;
Joe Perchesffb5df62009-08-24 17:29:47 +00003348 s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high,
3349 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003350 0x2, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003351
Joe Perchesd44570e2009-08-24 17:29:44 +00003352 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003353 xstats->alarm_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003354
3355 flag = CHECKBIT(val64, 0x1);
3356 type = 3;
Joe Perchesffb5df62009-08-24 17:29:47 +00003357 s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high,
3358 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003359 0x4, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003360
Joe Perchesd44570e2009-08-24 17:29:44 +00003361 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003362 xstats->alarm_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003363
3364 /* Reading the Warning flags */
3365 addr = 0xA074;
3366 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003367 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003368
Joe Perchesd44570e2009-08-24 17:29:44 +00003369 if (CHECKBIT(val64, 0x7))
Joe Perchesffb5df62009-08-24 17:29:47 +00003370 xstats->warn_transceiver_temp_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003371
Joe Perchesd44570e2009-08-24 17:29:44 +00003372 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003373 xstats->warn_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003374
Joe Perchesd44570e2009-08-24 17:29:44 +00003375 if (CHECKBIT(val64, 0x3))
Joe Perchesffb5df62009-08-24 17:29:47 +00003376 xstats->warn_laser_bias_current_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003377
Joe Perchesd44570e2009-08-24 17:29:44 +00003378 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003379 xstats->warn_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003380
Joe Perchesd44570e2009-08-24 17:29:44 +00003381 if (CHECKBIT(val64, 0x1))
Joe Perchesffb5df62009-08-24 17:29:47 +00003382 xstats->warn_laser_output_power_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003383
Joe Perchesd44570e2009-08-24 17:29:44 +00003384 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003385 xstats->warn_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003386}
3387
3388/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003389 * wait_for_cmd_complete - waits for a command to complete.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003390 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07003391 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003392 * Description: Function that waits for a command to Write into RMAC
3393 * ADDR DATA registers to be completed and returns either success or
3394 * error depending on whether the command was complete or not.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003395 * Return value:
3396 * SUCCESS on success and FAILURE on failure.
3397 */
3398
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003399static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
Joe Perchesd44570e2009-08-24 17:29:44 +00003400 int bit_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003401{
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003402 int ret = FAILURE, cnt = 0, delay = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003403 u64 val64;
3404
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003405 if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET))
3406 return FAILURE;
3407
3408 do {
Ananda Rajuc92ca042006-04-21 19:18:03 -04003409 val64 = readq(addr);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003410 if (bit_state == S2IO_BIT_RESET) {
3411 if (!(val64 & busy_bit)) {
3412 ret = SUCCESS;
3413 break;
3414 }
3415 } else {
Ram Vepa2d146eb2010-01-19 12:36:20 -08003416 if (val64 & busy_bit) {
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003417 ret = SUCCESS;
3418 break;
3419 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003420 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003421
Joe Perchesd44570e2009-08-24 17:29:44 +00003422 if (in_interrupt())
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003423 mdelay(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003424 else
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003425 msleep(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003426
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003427 if (++cnt >= 10)
3428 delay = 50;
3429 } while (cnt < 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003430 return ret;
3431}
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003432/*
3433 * check_pci_device_id - Checks if the device id is supported
3434 * @id : device id
3435 * Description: Function to check if the pci device id is supported by driver.
3436 * Return value: Actual device id if supported else PCI_ANY_ID
3437 */
3438static u16 check_pci_device_id(u16 id)
3439{
3440 switch (id) {
3441 case PCI_DEVICE_ID_HERC_WIN:
3442 case PCI_DEVICE_ID_HERC_UNI:
3443 return XFRAME_II_DEVICE;
3444 case PCI_DEVICE_ID_S2IO_UNI:
3445 case PCI_DEVICE_ID_S2IO_WIN:
3446 return XFRAME_I_DEVICE;
3447 default:
3448 return PCI_ANY_ID;
3449 }
3450}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003451
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003452/**
3453 * s2io_reset - Resets the card.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003454 * @sp : private member of the device structure.
3455 * Description: Function to Reset the card. This function then also
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003456 * restores the previously saved PCI configuration space registers as
Linus Torvalds1da177e2005-04-16 15:20:36 -07003457 * the card reset also resets the configuration space.
3458 * Return value:
3459 * void.
3460 */
3461
Joe Perchesd44570e2009-08-24 17:29:44 +00003462static void s2io_reset(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003463{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003464 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003465 u64 val64;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003466 u16 subid, pci_cmd;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003467 int i;
3468 u16 val16;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003469 unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt;
3470 unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt;
Joe Perchesffb5df62009-08-24 17:29:47 +00003471 struct stat_block *stats;
3472 struct swStat *swstats;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003473
Joe Perches9e39f7c2009-08-25 08:52:00 +00003474 DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n",
Breno Leitao3a228132010-03-04 10:40:44 +00003475 __func__, pci_name(sp->pdev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07003476
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003477 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07003478 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003479
Linus Torvalds1da177e2005-04-16 15:20:36 -07003480 val64 = SW_RESET_ALL;
3481 writeq(val64, &bar0->sw_reset);
Joe Perchesd44570e2009-08-24 17:29:44 +00003482 if (strstr(sp->product_name, "CX4"))
Ananda Rajuc92ca042006-04-21 19:18:03 -04003483 msleep(750);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003484 msleep(250);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003485 for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
3486
3487 /* Restore the PCI state saved during initialization. */
3488 pci_restore_state(sp->pdev);
Breno Leitaob8a623b2009-11-10 09:44:23 +00003489 pci_save_state(sp->pdev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003490 pci_read_config_word(sp->pdev, 0x2, &val16);
3491 if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
3492 break;
3493 msleep(200);
3494 }
3495
Joe Perchesd44570e2009-08-24 17:29:44 +00003496 if (check_pci_device_id(val16) == (u16)PCI_ANY_ID)
3497 DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003498
3499 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
3500
3501 s2io_init_pci(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003502
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003503 /* Set swapper to enable I/O register access */
3504 s2io_set_swapper(sp);
3505
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003506 /* restore mac_addr entries */
3507 do_s2io_restore_unicast_mc(sp);
3508
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003509 /* Restore the MSIX table entries from local variables */
3510 restore_xmsi_data(sp);
3511
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003512 /* Clear certain PCI/PCI-X fields after reset */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003513 if (sp->device_type == XFRAME_II_DEVICE) {
Ananda Rajub41477f2006-07-24 19:52:49 -04003514 /* Clear "detected parity error" bit */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003515 pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003516
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003517 /* Clearing PCIX Ecc status register */
3518 pci_write_config_dword(sp->pdev, 0x68, 0x7C);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003519
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003520 /* Clearing PCI_STATUS error reflected here */
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003521 writeq(s2BIT(62), &bar0->txpic_int_reg);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003522 }
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003523
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003524 /* Reset device statistics maintained by OS */
Joe Perchesd44570e2009-08-24 17:29:44 +00003525 memset(&sp->stats, 0, sizeof(struct net_device_stats));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003526
Joe Perchesffb5df62009-08-24 17:29:47 +00003527 stats = sp->mac_control.stats_info;
3528 swstats = &stats->sw_stat;
3529
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003530 /* save link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003531 up_cnt = swstats->link_up_cnt;
3532 down_cnt = swstats->link_down_cnt;
3533 up_time = swstats->link_up_time;
3534 down_time = swstats->link_down_time;
3535 reset_cnt = swstats->soft_reset_cnt;
3536 mem_alloc_cnt = swstats->mem_allocated;
3537 mem_free_cnt = swstats->mem_freed;
3538 watchdog_cnt = swstats->watchdog_timer_cnt;
3539
3540 memset(stats, 0, sizeof(struct stat_block));
3541
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003542 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003543 swstats->link_up_cnt = up_cnt;
3544 swstats->link_down_cnt = down_cnt;
3545 swstats->link_up_time = up_time;
3546 swstats->link_down_time = down_time;
3547 swstats->soft_reset_cnt = reset_cnt;
3548 swstats->mem_allocated = mem_alloc_cnt;
3549 swstats->mem_freed = mem_free_cnt;
3550 swstats->watchdog_timer_cnt = watchdog_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003551
Linus Torvalds1da177e2005-04-16 15:20:36 -07003552 /* SXE-002: Configure link and activity LED to turn it off */
3553 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003554 if (((subid & 0xFF) >= 0x07) &&
3555 (sp->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003556 val64 = readq(&bar0->gpio_control);
3557 val64 |= 0x0000800000000000ULL;
3558 writeq(val64, &bar0->gpio_control);
3559 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01003560 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003561 }
3562
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003563 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -03003564 * Clear spurious ECC interrupts that would have occurred on
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003565 * XFRAME II cards after reset.
3566 */
3567 if (sp->device_type == XFRAME_II_DEVICE) {
3568 val64 = readq(&bar0->pcc_err_reg);
3569 writeq(val64, &bar0->pcc_err_reg);
3570 }
3571
Tobias Klauserf957bcf2009-06-04 23:07:59 +00003572 sp->device_enabled_once = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003573}
3574
3575/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003576 * s2io_set_swapper - to set the swapper controle on the card
3577 * @sp : private member of the device structure,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003578 * pointer to the s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003579 * Description: Function to set the swapper control on the card
Linus Torvalds1da177e2005-04-16 15:20:36 -07003580 * correctly depending on the 'endianness' of the system.
3581 * Return value:
3582 * SUCCESS on success and FAILURE on failure.
3583 */
3584
Joe Perchesd44570e2009-08-24 17:29:44 +00003585static int s2io_set_swapper(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003586{
3587 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003588 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003589 u64 val64, valt, valr;
3590
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003591 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003592 * Set proper endian settings and verify the same by reading
3593 * the PIF Feed-back register.
3594 */
3595
3596 val64 = readq(&bar0->pif_rd_swapper_fb);
3597 if (val64 != 0x0123456789ABCDEFULL) {
3598 int i = 0;
Jon Mason85a56492010-12-10 15:40:04 +00003599 static const u64 value[] = {
3600 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3601 0x8100008181000081ULL, /* FE=1, SE=0 */
3602 0x4200004242000042ULL, /* FE=0, SE=1 */
3603 0 /* FE=0, SE=0 */
3604 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003605
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;
Jon Mason85a56492010-12-10 15:40:04 +00003630 static const u64 value[] = {
3631 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3632 0x0081810000818100ULL, /* FE=1, SE=0 */
3633 0x0042420000424200ULL, /* FE=0, SE=1 */
3634 0 /* FE=0, SE=0 */
3635 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003636
Joe Perchesd44570e2009-08-24 17:29:44 +00003637 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003638 writeq((value[i] | valr), &bar0->swapper_ctrl);
3639 writeq(valt, &bar0->xmsi_address);
3640 val64 = readq(&bar0->xmsi_address);
Joe Perchesd44570e2009-08-24 17:29:44 +00003641 if (val64 == valt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003642 break;
3643 i++;
3644 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003645 if (i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003646 unsigned long long x = val64;
Joe Perches9e39f7c2009-08-25 08:52:00 +00003647 DBG_PRINT(ERR_DBG,
3648 "Write failed, Xmsi_addr reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003649 return FAILURE;
3650 }
3651 }
3652 val64 = readq(&bar0->swapper_ctrl);
3653 val64 &= 0xFFFF000000000000ULL;
3654
Joe Perchesd44570e2009-08-24 17:29:44 +00003655#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003656 /*
3657 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003658 * big endian driver need not set anything.
3659 */
3660 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003661 SWAPPER_CTRL_TXP_SE |
3662 SWAPPER_CTRL_TXD_R_FE |
3663 SWAPPER_CTRL_TXD_W_FE |
3664 SWAPPER_CTRL_TXF_R_FE |
3665 SWAPPER_CTRL_RXD_R_FE |
3666 SWAPPER_CTRL_RXD_W_FE |
3667 SWAPPER_CTRL_RXF_W_FE |
3668 SWAPPER_CTRL_XMSI_FE |
3669 SWAPPER_CTRL_STATS_FE |
3670 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003671 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003672 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003673 writeq(val64, &bar0->swapper_ctrl);
3674#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003675 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003676 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003677 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003678 * we want to set.
3679 */
3680 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003681 SWAPPER_CTRL_TXP_SE |
3682 SWAPPER_CTRL_TXD_R_FE |
3683 SWAPPER_CTRL_TXD_R_SE |
3684 SWAPPER_CTRL_TXD_W_FE |
3685 SWAPPER_CTRL_TXD_W_SE |
3686 SWAPPER_CTRL_TXF_R_FE |
3687 SWAPPER_CTRL_RXD_R_FE |
3688 SWAPPER_CTRL_RXD_R_SE |
3689 SWAPPER_CTRL_RXD_W_FE |
3690 SWAPPER_CTRL_RXD_W_SE |
3691 SWAPPER_CTRL_RXF_W_FE |
3692 SWAPPER_CTRL_XMSI_FE |
3693 SWAPPER_CTRL_STATS_FE |
3694 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003695 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003696 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003697 writeq(val64, &bar0->swapper_ctrl);
3698#endif
3699 val64 = readq(&bar0->swapper_ctrl);
3700
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003701 /*
3702 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003703 * feedback register.
3704 */
3705 val64 = readq(&bar0->pif_rd_swapper_fb);
3706 if (val64 != 0x0123456789ABCDEFULL) {
3707 /* Endian settings are incorrect, calls for another dekko. */
Joe Perches9e39f7c2009-08-25 08:52:00 +00003708 DBG_PRINT(ERR_DBG,
3709 "%s: Endian settings are wrong, feedback read %llx\n",
3710 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003711 return FAILURE;
3712 }
3713
3714 return SUCCESS;
3715}
3716
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003717static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003718{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003719 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003720 u64 val64;
3721 int ret = 0, cnt = 0;
3722
3723 do {
3724 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003725 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003726 break;
3727 mdelay(1);
3728 cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00003729 } while (cnt < 5);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003730 if (cnt == 5) {
3731 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3732 ret = 1;
3733 }
3734
3735 return ret;
3736}
3737
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003738static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003739{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003740 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003741 u64 val64;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003742 int i, msix_index;
3743
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003744 if (nic->device_type == XFRAME_I_DEVICE)
3745 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003746
Joe Perchesd44570e2009-08-24 17:29:44 +00003747 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3748 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003749 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3750 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003751 val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003752 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003753 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003754 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3755 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003756 continue;
3757 }
3758 }
3759}
3760
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003761static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003762{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003763 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003764 u64 val64, addr, data;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003765 int i, msix_index;
3766
3767 if (nic->device_type == XFRAME_I_DEVICE)
3768 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003769
3770 /* Store and display */
Joe Perchesd44570e2009-08-24 17:29:44 +00003771 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3772 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003773 val64 = (s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003774 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003775 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003776 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3777 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003778 continue;
3779 }
3780 addr = readq(&bar0->xmsi_address);
3781 data = readq(&bar0->xmsi_data);
3782 if (addr && data) {
3783 nic->msix_info[i].addr = addr;
3784 nic->msix_info[i].data = data;
3785 }
3786 }
3787}
3788
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003789static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003790{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003791 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003792 u64 rx_mat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003793 u16 msi_control; /* Temp variable */
3794 int ret, i, j, msix_indx = 1;
Joe Perches4f870322009-08-24 17:29:42 +00003795 int size;
Joe Perchesffb5df62009-08-24 17:29:47 +00003796 struct stat_block *stats = nic->mac_control.stats_info;
3797 struct swStat *swstats = &stats->sw_stat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003798
Joe Perches4f870322009-08-24 17:29:42 +00003799 size = nic->num_entries * sizeof(struct msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003800 nic->entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003801 if (!nic->entries) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003802 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
3803 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003804 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003805 return -ENOMEM;
3806 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003807 swstats->mem_allocated += size;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003808
Joe Perches4f870322009-08-24 17:29:42 +00003809 size = nic->num_entries * sizeof(struct s2io_msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003810 nic->s2io_entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003811 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003812 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003813 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003814 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003815 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003816 swstats->mem_freed
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003817 += (nic->num_entries * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003818 return -ENOMEM;
3819 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003820 swstats->mem_allocated += size;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003821
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003822 nic->entries[0].entry = 0;
3823 nic->s2io_entries[0].entry = 0;
3824 nic->s2io_entries[0].in_use = MSIX_FLG;
3825 nic->s2io_entries[0].type = MSIX_ALARM_TYPE;
3826 nic->s2io_entries[0].arg = &nic->mac_control.fifos;
3827
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003828 for (i = 1; i < nic->num_entries; i++) {
3829 nic->entries[i].entry = ((i - 1) * 8) + 1;
3830 nic->s2io_entries[i].entry = ((i - 1) * 8) + 1;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003831 nic->s2io_entries[i].arg = NULL;
3832 nic->s2io_entries[i].in_use = 0;
3833 }
3834
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003835 rx_mat = readq(&bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003836 for (j = 0; j < nic->config.rx_ring_num; j++) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003837 rx_mat |= RX_MAT_SET(j, msix_indx);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003838 nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j];
3839 nic->s2io_entries[j+1].type = MSIX_RING_TYPE;
3840 nic->s2io_entries[j+1].in_use = MSIX_FLG;
3841 msix_indx += 8;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003842 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003843 writeq(rx_mat, &bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003844 readq(&bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003845
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003846 ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003847 /* We fail init if error or we get less vectors than min required */
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003848 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003849 DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n");
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003850 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003851 swstats->mem_freed += nic->num_entries *
3852 sizeof(struct msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003853 kfree(nic->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003854 swstats->mem_freed += nic->num_entries *
3855 sizeof(struct s2io_msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003856 nic->entries = NULL;
3857 nic->s2io_entries = NULL;
3858 return -ENOMEM;
3859 }
3860
3861 /*
3862 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3863 * in the herc NIC. (Temp change, needs to be removed later)
3864 */
3865 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3866 msi_control |= 0x1; /* Enable MSI */
3867 pci_write_config_word(nic->pdev, 0x42, msi_control);
3868
3869 return 0;
3870}
3871
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003872/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003873static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003874{
3875 struct s2io_nic *sp = dev_id;
3876
3877 sp->msi_detected = 1;
3878 wake_up(&sp->msi_wait);
3879
3880 return IRQ_HANDLED;
3881}
3882
3883/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003884static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003885{
3886 struct pci_dev *pdev = sp->pdev;
3887 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3888 int err;
3889 u64 val64, saved64;
3890
3891 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00003892 sp->name, sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003893 if (err) {
3894 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003895 sp->dev->name, pci_name(pdev), pdev->irq);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003896 return err;
3897 }
3898
Joe Perchesd44570e2009-08-24 17:29:44 +00003899 init_waitqueue_head(&sp->msi_wait);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003900 sp->msi_detected = 0;
3901
3902 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3903 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3904 val64 |= SCHED_INT_CTRL_TIMER_EN;
3905 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3906 writeq(val64, &bar0->scheduled_int_ctrl);
3907
3908 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3909
3910 if (!sp->msi_detected) {
3911 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003912 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Joe Perches9e39f7c2009-08-25 08:52:00 +00003913 "using MSI(X) during test\n",
3914 sp->dev->name, pci_name(pdev));
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003915
3916 err = -EOPNOTSUPP;
3917 }
3918
3919 free_irq(sp->entries[1].vector, sp);
3920
3921 writeq(saved64, &bar0->scheduled_int_ctrl);
3922
3923 return err;
3924}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003925
3926static void remove_msix_isr(struct s2io_nic *sp)
3927{
3928 int i;
3929 u16 msi_control;
3930
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003931 for (i = 0; i < sp->num_entries; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003932 if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003933 int vector = sp->entries[i].vector;
3934 void *arg = sp->s2io_entries[i].arg;
3935 free_irq(vector, arg);
3936 }
3937 }
3938
3939 kfree(sp->entries);
3940 kfree(sp->s2io_entries);
3941 sp->entries = NULL;
3942 sp->s2io_entries = NULL;
3943
3944 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3945 msi_control &= 0xFFFE; /* Disable MSI */
3946 pci_write_config_word(sp->pdev, 0x42, msi_control);
3947
3948 pci_disable_msix(sp->pdev);
3949}
3950
3951static void remove_inta_isr(struct s2io_nic *sp)
3952{
3953 struct net_device *dev = sp->dev;
3954
3955 free_irq(sp->pdev->irq, dev);
3956}
3957
Linus Torvalds1da177e2005-04-16 15:20:36 -07003958/* ********************************************************* *
3959 * Functions defined below concern the OS part of the driver *
3960 * ********************************************************* */
3961
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003962/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003963 * s2io_open - open entry point of the driver
3964 * @dev : pointer to the device structure.
3965 * Description:
3966 * This function is the open entry point of the driver. It mainly calls a
3967 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003968 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003969 * Return value:
3970 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3971 * file on failure.
3972 */
3973
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003974static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003975{
Wang Chen4cf16532008-11-12 23:38:14 -08003976 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003977 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003978 int err = 0;
3979
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003980 /*
3981 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003982 * Nic is initialized
3983 */
3984 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003985 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003986
3987 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003988 err = s2io_card_up(sp);
3989 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003990 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3991 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003992 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003993 }
3994
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003995 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003996 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003997 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003998 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003999 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004000 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004001 s2io_start_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004002 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004003
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004004hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07004005 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004006 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004007 kfree(sp->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004008 swstats->mem_freed += sp->num_entries *
4009 sizeof(struct msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004010 }
4011 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004012 kfree(sp->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004013 swstats->mem_freed += sp->num_entries *
4014 sizeof(struct s2io_msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004015 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004016 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004017 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004018}
4019
4020/**
4021 * s2io_close -close entry point of the driver
4022 * @dev : device pointer.
4023 * Description:
4024 * This is the stop entry point of the driver. It needs to undo exactly
4025 * whatever was done by the open entry point,thus it's usually referred to
4026 * as the close function.Among other things this function mainly stops the
4027 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
4028 * Return value:
4029 * 0 on success and an appropriate (-)ve integer as defined in errno.h
4030 * file on failure.
4031 */
4032
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004033static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004034{
Wang Chen4cf16532008-11-12 23:38:14 -08004035 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004036 struct config_param *config = &sp->config;
4037 u64 tmp64;
4038 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004039
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004040 /* Return if the device is already closed *
Joe Perchesd44570e2009-08-24 17:29:44 +00004041 * Can happen when s2io_card_up failed in change_mtu *
4042 */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004043 if (!is_s2io_card_up(sp))
4044 return 0;
4045
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004046 s2io_stop_all_tx_queue(sp);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004047 /* delete all populated mac entries */
4048 for (offset = 1; offset < config->max_mc_addr; offset++) {
4049 tmp64 = do_s2io_read_unicast_mc(sp, offset);
4050 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
4051 do_s2io_delete_unicast_mc(sp, tmp64);
4052 }
4053
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004054 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004055
Linus Torvalds1da177e2005-04-16 15:20:36 -07004056 return 0;
4057}
4058
4059/**
4060 * s2io_xmit - Tx entry point of te driver
4061 * @skb : the socket buffer containing the Tx data.
4062 * @dev : device pointer.
4063 * Description :
4064 * This function is the Tx entry point of the driver. S2IO NIC supports
4065 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004066 * NOTE: when device can't queue the pkt,just the trans_start variable will
Linus Torvalds1da177e2005-04-16 15:20:36 -07004067 * not be upadted.
4068 * Return value:
4069 * 0 on success & 1 on failure.
4070 */
4071
Stephen Hemminger613573252009-08-31 19:50:58 +00004072static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004073{
Wang Chen4cf16532008-11-12 23:38:14 -08004074 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004075 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4076 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004077 struct TxD *txdp;
4078 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004079 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004080 u16 vlan_tag = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004081 struct fifo_info *fifo = NULL;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004082 int do_spin_lock = 1;
Ananda Raju75c30b12006-07-24 19:55:09 -04004083 int offload_type;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004084 int enable_per_list_interrupt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00004085 struct config_param *config = &sp->config;
4086 struct mac_info *mac_control = &sp->mac_control;
4087 struct stat_block *stats = mac_control->stats_info;
4088 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004089
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004090 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004091
4092 if (unlikely(skb->len <= 0)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00004093 DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004094 dev_kfree_skb_any(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004095 return NETDEV_TX_OK;
Surjit Reang2fda0962008-01-24 02:08:59 -08004096 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004097
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004098 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004099 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004100 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004101 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004102 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004103 }
4104
4105 queue = 0;
Jesse Grosseab6d182010-10-20 13:56:03 +00004106 if (vlan_tx_tag_present(skb))
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004107 vlan_tag = vlan_tx_tag_get(skb);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004108 if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) {
4109 if (skb->protocol == htons(ETH_P_IP)) {
4110 struct iphdr *ip;
4111 struct tcphdr *th;
4112 ip = ip_hdr(skb);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004113
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004114 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
4115 th = (struct tcphdr *)(((unsigned char *)ip) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004116 ip->ihl*4);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004117
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004118 if (ip->protocol == IPPROTO_TCP) {
4119 queue_len = sp->total_tcp_fifos;
4120 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004121 ntohs(th->dest)) &
4122 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004123 if (queue >= queue_len)
4124 queue = queue_len - 1;
4125 } else if (ip->protocol == IPPROTO_UDP) {
4126 queue_len = sp->total_udp_fifos;
4127 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004128 ntohs(th->dest)) &
4129 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004130 if (queue >= queue_len)
4131 queue = queue_len - 1;
4132 queue += sp->udp_fifo_idx;
4133 if (skb->len > 1024)
4134 enable_per_list_interrupt = 1;
4135 do_spin_lock = 0;
4136 }
4137 }
4138 }
4139 } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING)
4140 /* get fifo number based on skb->priority value */
4141 queue = config->fifo_mapping
Joe Perchesd44570e2009-08-24 17:29:44 +00004142 [skb->priority & (MAX_TX_FIFOS - 1)];
Surjit Reang2fda0962008-01-24 02:08:59 -08004143 fifo = &mac_control->fifos[queue];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004144
4145 if (do_spin_lock)
4146 spin_lock_irqsave(&fifo->tx_lock, flags);
4147 else {
4148 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
4149 return NETDEV_TX_LOCKED;
4150 }
4151
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004152 if (sp->config.multiq) {
4153 if (__netif_subqueue_stopped(dev, fifo->fifo_no)) {
4154 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4155 return NETDEV_TX_BUSY;
4156 }
David S. Millerb19fa1f2008-07-08 23:14:24 -07004157 } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004158 if (netif_queue_stopped(dev)) {
4159 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4160 return NETDEV_TX_BUSY;
4161 }
4162 }
4163
Joe Perchesd44570e2009-08-24 17:29:44 +00004164 put_off = (u16)fifo->tx_curr_put_info.offset;
4165 get_off = (u16)fifo->tx_curr_get_info.offset;
4166 txdp = (struct TxD *)fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004167
Surjit Reang2fda0962008-01-24 02:08:59 -08004168 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004169 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004170 if (txdp->Host_Control ||
Joe Perchesd44570e2009-08-24 17:29:44 +00004171 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004172 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004173 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004174 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004175 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004176 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004177 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004178
Ananda Raju75c30b12006-07-24 19:55:09 -04004179 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004180 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004181 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004182 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004183 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004184 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004185 txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN |
4186 TXD_TX_CKO_TCP_EN |
4187 TXD_TX_CKO_UDP_EN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004188 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004189 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4190 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004191 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004192 if (enable_per_list_interrupt)
4193 if (put_off & (queue_len >> 5))
4194 txdp->Control_2 |= TXD_INT_TYPE_PER_LIST;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004195 if (vlan_tag) {
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004196 txdp->Control_2 |= TXD_VLAN_ENABLE;
4197 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4198 }
4199
Eric Dumazete743d312010-04-14 15:59:40 -07004200 frg_len = skb_headlen(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004201 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004202 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004203
Ananda Raju75c30b12006-07-24 19:55:09 -04004204 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004205 ufo_size &= ~7;
4206 txdp->Control_1 |= TXD_UFO_EN;
4207 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4208 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4209#ifdef __BIG_ENDIAN
Al Viro3459feb2008-03-16 22:23:14 +00004210 /* both variants do cpu_to_be64(be32_to_cpu(...)) */
Surjit Reang2fda0962008-01-24 02:08:59 -08004211 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004212 (__force u64)skb_shinfo(skb)->ip6_frag_id;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004213#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004214 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004215 (__force u64)skb_shinfo(skb)->ip6_frag_id << 32;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004216#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004217 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004218 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00004219 fifo->ufo_in_band_v,
4220 sizeof(u64),
4221 PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004222 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004223 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004224 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004225 }
4226
Joe Perchesd44570e2009-08-24 17:29:44 +00004227 txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
4228 frg_len, PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004229 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004230 goto pci_map_failed;
4231
Joe Perchesd44570e2009-08-24 17:29:44 +00004232 txdp->Host_Control = (unsigned long)skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004233 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004234 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004235 txdp->Control_1 |= TXD_UFO_EN;
4236
4237 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004238 /* For fragmented SKB. */
4239 for (i = 0; i < frg_cnt; i++) {
4240 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004241 /* A '0' length fragment will be ignored */
4242 if (!frag->size)
4243 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004244 txdp++;
Joe Perchesd44570e2009-08-24 17:29:44 +00004245 txdp->Buffer_Pointer = (u64)pci_map_page(sp->pdev, frag->page,
4246 frag->page_offset,
4247 frag->size,
4248 PCI_DMA_TODEVICE);
Ananda Rajuefd51b52006-01-19 14:11:54 -05004249 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
Ananda Raju75c30b12006-07-24 19:55:09 -04004250 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004251 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004252 }
4253 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4254
Ananda Raju75c30b12006-07-24 19:55:09 -04004255 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004256 frg_cnt++; /* as Txd0 was used for inband header */
4257
Linus Torvalds1da177e2005-04-16 15:20:36 -07004258 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004259 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004260 writeq(val64, &tx_fifo->TxDL_Pointer);
4261
4262 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4263 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004264 if (offload_type)
4265 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004266
Linus Torvalds1da177e2005-04-16 15:20:36 -07004267 writeq(val64, &tx_fifo->List_Control);
4268
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004269 mmiowb();
4270
Linus Torvalds1da177e2005-04-16 15:20:36 -07004271 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004272 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004273 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004274 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004275
4276 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004277 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Joe Perchesffb5df62009-08-24 17:29:47 +00004278 swstats->fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004279 DBG_PRINT(TX_DBG,
4280 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4281 put_off, get_off);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004282 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004283 }
Joe Perchesffb5df62009-08-24 17:29:47 +00004284 swstats->mem_allocated += skb->truesize;
Surjit Reang2fda0962008-01-24 02:08:59 -08004285 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004286
Sreenivasa Honnurf6f4bfa2008-03-25 15:11:56 -04004287 if (sp->config.intr_type == MSI_X)
4288 tx_intr_handler(fifo);
4289
Patrick McHardy6ed10652009-06-23 06:03:08 +00004290 return NETDEV_TX_OK;
Joe Perchesffb5df62009-08-24 17:29:47 +00004291
Veena Parat491abf22007-07-23 02:37:14 -04004292pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00004293 swstats->pci_map_fail_cnt++;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004294 s2io_stop_tx_queue(sp, fifo->fifo_no);
Joe Perchesffb5df62009-08-24 17:29:47 +00004295 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04004296 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004297 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004298 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004299}
4300
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004301static void
4302s2io_alarm_handle(unsigned long data)
4303{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004304 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004305 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004306
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004307 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004308 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4309}
4310
David Howells7d12e782006-10-05 14:55:46 +01004311static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004312{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004313 struct ring_info *ring = (struct ring_info *)dev_id;
4314 struct s2io_nic *sp = ring->nic;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004315 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004316
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004317 if (unlikely(!is_s2io_card_up(sp)))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004318 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004319
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004320 if (sp->config.napi) {
Al Viro1a79d1c2008-06-02 10:59:02 +01004321 u8 __iomem *addr = NULL;
4322 u8 val8 = 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004323
Al Viro1a79d1c2008-06-02 10:59:02 +01004324 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004325 addr += (7 - ring->ring_no);
4326 val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
4327 writeb(val8, addr);
4328 val8 = readb(addr);
Ben Hutchings288379f2009-01-19 16:43:59 -08004329 napi_schedule(&ring->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004330 } else {
4331 rx_intr_handler(ring, 0);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004332 s2io_chk_rx_buffers(sp, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004333 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004334
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004335 return IRQ_HANDLED;
4336}
4337
David Howells7d12e782006-10-05 14:55:46 +01004338static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004339{
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004340 int i;
4341 struct fifo_info *fifos = (struct fifo_info *)dev_id;
4342 struct s2io_nic *sp = fifos->nic;
4343 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4344 struct config_param *config = &sp->config;
4345 u64 reason;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004346
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004347 if (unlikely(!is_s2io_card_up(sp)))
4348 return IRQ_NONE;
4349
4350 reason = readq(&bar0->general_int_status);
4351 if (unlikely(reason == S2IO_MINUS_ONE))
4352 /* Nothing much can be done. Get out */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004353 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004354
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004355 if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
4356 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004357
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004358 if (reason & GEN_INTR_TXPIC)
4359 s2io_txpic_intr_handle(sp);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004360
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004361 if (reason & GEN_INTR_TXTRAFFIC)
4362 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004363
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004364 for (i = 0; i < config->tx_fifo_num; i++)
4365 tx_intr_handler(&fifos[i]);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004366
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004367 writeq(sp->general_int_mask, &bar0->general_int_mask);
4368 readl(&bar0->general_int_status);
4369 return IRQ_HANDLED;
4370 }
4371 /* The interrupt was not raised by us */
4372 return IRQ_NONE;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004373}
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004374
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004375static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004376{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004377 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004378 u64 val64;
4379
4380 val64 = readq(&bar0->pic_int_status);
4381 if (val64 & PIC_INT_GPIO) {
4382 val64 = readq(&bar0->gpio_int_reg);
4383 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4384 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004385 /*
4386 * This is unstable state so clear both up/down
4387 * interrupt and adapter to re-evaluate the link state.
4388 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004389 val64 |= GPIO_INT_REG_LINK_DOWN;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004390 val64 |= GPIO_INT_REG_LINK_UP;
4391 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004392 val64 = readq(&bar0->gpio_int_mask);
4393 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4394 GPIO_INT_MASK_LINK_DOWN);
4395 writeq(val64, &bar0->gpio_int_mask);
Joe Perchesd44570e2009-08-24 17:29:44 +00004396 } else if (val64 & GPIO_INT_REG_LINK_UP) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004397 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004398 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004399 val64 = readq(&bar0->adapter_control);
4400 val64 |= ADAPTER_CNTL_EN;
4401 writeq(val64, &bar0->adapter_control);
4402 val64 |= ADAPTER_LED_ON;
4403 writeq(val64, &bar0->adapter_control);
4404 if (!sp->device_enabled_once)
4405 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004406
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004407 s2io_link(sp, LINK_UP);
4408 /*
4409 * unmask link down interrupt and mask link-up
4410 * intr
4411 */
4412 val64 = readq(&bar0->gpio_int_mask);
4413 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4414 val64 |= GPIO_INT_MASK_LINK_UP;
4415 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004416
Joe Perchesd44570e2009-08-24 17:29:44 +00004417 } else if (val64 & GPIO_INT_REG_LINK_DOWN) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004418 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004419 s2io_link(sp, LINK_DOWN);
4420 /* Link is down so unmaks link up interrupt */
4421 val64 = readq(&bar0->gpio_int_mask);
4422 val64 &= ~GPIO_INT_MASK_LINK_UP;
4423 val64 |= GPIO_INT_MASK_LINK_DOWN;
4424 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004425
4426 /* turn off LED */
4427 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00004428 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004429 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004430 }
4431 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004432 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004433}
4434
Linus Torvalds1da177e2005-04-16 15:20:36 -07004435/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004436 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4437 * @value: alarm bits
4438 * @addr: address value
4439 * @cnt: counter variable
4440 * Description: Check for alarm and increment the counter
4441 * Return Value:
4442 * 1 - if alarm bit set
4443 * 0 - if alarm bit is not set
4444 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004445static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr,
4446 unsigned long long *cnt)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004447{
4448 u64 val64;
4449 val64 = readq(addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00004450 if (val64 & value) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004451 writeq(val64, addr);
4452 (*cnt)++;
4453 return 1;
4454 }
4455 return 0;
4456
4457}
4458
4459/**
4460 * s2io_handle_errors - Xframe error indication handler
4461 * @nic: device private variable
4462 * Description: Handle alarms such as loss of link, single or
4463 * double ECC errors, critical and serious errors.
4464 * Return Value:
4465 * NONE
4466 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004467static void s2io_handle_errors(void *dev_id)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004468{
Joe Perchesd44570e2009-08-24 17:29:44 +00004469 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004470 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004471 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Joe Perchesd44570e2009-08-24 17:29:44 +00004472 u64 temp64 = 0, val64 = 0;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004473 int i = 0;
4474
4475 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4476 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4477
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004478 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004479 return;
4480
4481 if (pci_channel_offline(sp->pdev))
4482 return;
4483
4484 memset(&sw_stat->ring_full_cnt, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00004485 sizeof(sw_stat->ring_full_cnt));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004486
4487 /* Handling the XPAK counters update */
Joe Perchesd44570e2009-08-24 17:29:44 +00004488 if (stats->xpak_timer_count < 72000) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004489 /* waiting for an hour */
4490 stats->xpak_timer_count++;
4491 } else {
4492 s2io_updt_xpak_counter(dev);
4493 /* reset the count to zero */
4494 stats->xpak_timer_count = 0;
4495 }
4496
4497 /* Handling link status change error Intr */
4498 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4499 val64 = readq(&bar0->mac_rmac_err_reg);
4500 writeq(val64, &bar0->mac_rmac_err_reg);
4501 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4502 schedule_work(&sp->set_link_task);
4503 }
4504
4505 /* In case of a serious error, the device will be Reset. */
4506 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
Joe Perchesd44570e2009-08-24 17:29:44 +00004507 &sw_stat->serious_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004508 goto reset;
4509
4510 /* Check for data parity error */
4511 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
Joe Perchesd44570e2009-08-24 17:29:44 +00004512 &sw_stat->parity_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004513 goto reset;
4514
4515 /* Check for ring full counter */
4516 if (sp->device_type == XFRAME_II_DEVICE) {
4517 val64 = readq(&bar0->ring_bump_counter1);
Joe Perchesd44570e2009-08-24 17:29:44 +00004518 for (i = 0; i < 4; i++) {
4519 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004520 temp64 >>= 64 - ((i+1)*16);
4521 sw_stat->ring_full_cnt[i] += temp64;
4522 }
4523
4524 val64 = readq(&bar0->ring_bump_counter2);
Joe Perchesd44570e2009-08-24 17:29:44 +00004525 for (i = 0; i < 4; i++) {
4526 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004527 temp64 >>= 64 - ((i+1)*16);
Joe Perchesd44570e2009-08-24 17:29:44 +00004528 sw_stat->ring_full_cnt[i+4] += temp64;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004529 }
4530 }
4531
4532 val64 = readq(&bar0->txdma_int_status);
4533 /*check for pfc_err*/
4534 if (val64 & TXDMA_PFC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004535 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
4536 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
4537 PFC_PCIX_ERR,
4538 &bar0->pfc_err_reg,
4539 &sw_stat->pfc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004540 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004541 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR,
4542 &bar0->pfc_err_reg,
4543 &sw_stat->pfc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004544 }
4545
4546 /*check for tda_err*/
4547 if (val64 & TXDMA_TDA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004548 if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR |
4549 TDA_SM0_ERR_ALARM |
4550 TDA_SM1_ERR_ALARM,
4551 &bar0->tda_err_reg,
4552 &sw_stat->tda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004553 goto reset;
4554 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004555 &bar0->tda_err_reg,
4556 &sw_stat->tda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004557 }
4558 /*check for pcc_err*/
4559 if (val64 & TXDMA_PCC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004560 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
4561 PCC_N_SERR | PCC_6_COF_OV_ERR |
4562 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
4563 PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR |
4564 PCC_TXB_ECC_DB_ERR,
4565 &bar0->pcc_err_reg,
4566 &sw_stat->pcc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004567 goto reset;
4568 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004569 &bar0->pcc_err_reg,
4570 &sw_stat->pcc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004571 }
4572
4573 /*check for tti_err*/
4574 if (val64 & TXDMA_TTI_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004575 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM,
4576 &bar0->tti_err_reg,
4577 &sw_stat->tti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004578 goto reset;
4579 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004580 &bar0->tti_err_reg,
4581 &sw_stat->tti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004582 }
4583
4584 /*check for lso_err*/
4585 if (val64 & TXDMA_LSO_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004586 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT |
4587 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4588 &bar0->lso_err_reg,
4589 &sw_stat->lso_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004590 goto reset;
4591 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
Joe Perchesd44570e2009-08-24 17:29:44 +00004592 &bar0->lso_err_reg,
4593 &sw_stat->lso_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004594 }
4595
4596 /*check for tpa_err*/
4597 if (val64 & TXDMA_TPA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004598 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM,
4599 &bar0->tpa_err_reg,
4600 &sw_stat->tpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004601 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004602 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP,
4603 &bar0->tpa_err_reg,
4604 &sw_stat->tpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004605 }
4606
4607 /*check for sm_err*/
4608 if (val64 & TXDMA_SM_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004609 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM,
4610 &bar0->sm_err_reg,
4611 &sw_stat->sm_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004612 goto reset;
4613 }
4614
4615 val64 = readq(&bar0->mac_int_status);
4616 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4617 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004618 &bar0->mac_tmac_err_reg,
4619 &sw_stat->mac_tmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004620 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004621 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
4622 TMAC_DESC_ECC_SG_ERR |
4623 TMAC_DESC_ECC_DB_ERR,
4624 &bar0->mac_tmac_err_reg,
4625 &sw_stat->mac_tmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004626 }
4627
4628 val64 = readq(&bar0->xgxs_int_status);
4629 if (val64 & XGXS_INT_STATUS_TXGXS) {
4630 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004631 &bar0->xgxs_txgxs_err_reg,
4632 &sw_stat->xgxs_txgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004633 goto reset;
4634 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004635 &bar0->xgxs_txgxs_err_reg,
4636 &sw_stat->xgxs_txgxs_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004637 }
4638
4639 val64 = readq(&bar0->rxdma_int_status);
4640 if (val64 & RXDMA_INT_RC_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004641 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR |
4642 RC_FTC_ECC_DB_ERR |
4643 RC_PRCn_SM_ERR_ALARM |
4644 RC_FTC_SM_ERR_ALARM,
4645 &bar0->rc_err_reg,
4646 &sw_stat->rc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004647 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004648 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR |
4649 RC_FTC_ECC_SG_ERR |
4650 RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4651 &sw_stat->rc_err_cnt);
4652 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn |
4653 PRC_PCI_AB_WR_Rn |
4654 PRC_PCI_AB_F_WR_Rn,
4655 &bar0->prc_pcix_err_reg,
4656 &sw_stat->prc_pcix_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004657 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004658 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn |
4659 PRC_PCI_DP_WR_Rn |
4660 PRC_PCI_DP_F_WR_Rn,
4661 &bar0->prc_pcix_err_reg,
4662 &sw_stat->prc_pcix_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004663 }
4664
4665 if (val64 & RXDMA_INT_RPA_INT_M) {
4666 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004667 &bar0->rpa_err_reg,
4668 &sw_stat->rpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004669 goto reset;
4670 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004671 &bar0->rpa_err_reg,
4672 &sw_stat->rpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004673 }
4674
4675 if (val64 & RXDMA_INT_RDA_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004676 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR |
4677 RDA_FRM_ECC_DB_N_AERR |
4678 RDA_SM1_ERR_ALARM |
4679 RDA_SM0_ERR_ALARM |
4680 RDA_RXD_ECC_DB_SERR,
4681 &bar0->rda_err_reg,
4682 &sw_stat->rda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004683 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004684 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR |
4685 RDA_FRM_ECC_SG_ERR |
4686 RDA_MISC_ERR |
4687 RDA_PCIX_ERR,
4688 &bar0->rda_err_reg,
4689 &sw_stat->rda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004690 }
4691
4692 if (val64 & RXDMA_INT_RTI_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004693 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM,
4694 &bar0->rti_err_reg,
4695 &sw_stat->rti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004696 goto reset;
4697 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004698 &bar0->rti_err_reg,
4699 &sw_stat->rti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004700 }
4701
4702 val64 = readq(&bar0->mac_int_status);
4703 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4704 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004705 &bar0->mac_rmac_err_reg,
4706 &sw_stat->mac_rmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004707 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004708 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT |
4709 RMAC_SINGLE_ECC_ERR |
4710 RMAC_DOUBLE_ECC_ERR,
4711 &bar0->mac_rmac_err_reg,
4712 &sw_stat->mac_rmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004713 }
4714
4715 val64 = readq(&bar0->xgxs_int_status);
4716 if (val64 & XGXS_INT_STATUS_RXGXS) {
4717 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004718 &bar0->xgxs_rxgxs_err_reg,
4719 &sw_stat->xgxs_rxgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004720 goto reset;
4721 }
4722
4723 val64 = readq(&bar0->mc_int_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004724 if (val64 & MC_INT_STATUS_MC_INT) {
4725 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR,
4726 &bar0->mc_err_reg,
4727 &sw_stat->mc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004728 goto reset;
4729
4730 /* Handling Ecc errors */
4731 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4732 writeq(val64, &bar0->mc_err_reg);
4733 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4734 sw_stat->double_ecc_errs++;
4735 if (sp->device_type != XFRAME_II_DEVICE) {
4736 /*
4737 * Reset XframeI only if critical error
4738 */
4739 if (val64 &
Joe Perchesd44570e2009-08-24 17:29:44 +00004740 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4741 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4742 goto reset;
4743 }
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004744 } else
4745 sw_stat->single_ecc_errs++;
4746 }
4747 }
4748 return;
4749
4750reset:
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004751 s2io_stop_all_tx_queue(sp);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004752 schedule_work(&sp->rst_timer_task);
4753 sw_stat->soft_reset_cnt++;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004754}
4755
4756/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004757 * s2io_isr - ISR handler of the device .
4758 * @irq: the irq of the device.
4759 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004760 * Description: This function is the ISR handler of the device. It
4761 * identifies the reason for the interrupt and calls the relevant
4762 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004763 * recv buffers, if their numbers are below the panic value which is
4764 * presently set to 25% of the original number of rcv buffers allocated.
4765 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004766 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004767 * IRQ_NONE: will be returned if interrupt is not from our device
4768 */
David Howells7d12e782006-10-05 14:55:46 +01004769static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004770{
Joe Perchesd44570e2009-08-24 17:29:44 +00004771 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004772 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004773 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004774 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004775 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004776 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004777 struct config_param *config;
4778
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004779 /* Pretend we handled any irq's from a disconnected card */
4780 if (pci_channel_offline(sp->pdev))
4781 return IRQ_NONE;
4782
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004783 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004784 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004785
Linus Torvalds1da177e2005-04-16 15:20:36 -07004786 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00004787 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004788
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004789 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004790 * Identify the cause for interrupt and call the appropriate
4791 * interrupt handler. Causes for the interrupt could be;
4792 * 1. Rx of packet.
4793 * 2. Tx complete.
4794 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004795 */
4796 reason = readq(&bar0->general_int_status);
4797
Joe Perchesd44570e2009-08-24 17:29:44 +00004798 if (unlikely(reason == S2IO_MINUS_ONE))
4799 return IRQ_HANDLED; /* Nothing much can be done. Get out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004800
Joe Perchesd44570e2009-08-24 17:29:44 +00004801 if (reason &
4802 (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004803 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4804
4805 if (config->napi) {
4806 if (reason & GEN_INTR_RXTRAFFIC) {
Ben Hutchings288379f2009-01-19 16:43:59 -08004807 napi_schedule(&sp->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004808 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
4809 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
4810 readl(&bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004811 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004812 } else {
4813 /*
4814 * rx_traffic_int reg is an R1 register, writing all 1's
4815 * will ensure that the actual interrupt causing bit
4816 * get's cleared and hence a read can be avoided.
4817 */
4818 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004819 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004820
Joe Perches13d866a2009-08-24 17:29:41 +00004821 for (i = 0; i < config->rx_ring_num; i++) {
4822 struct ring_info *ring = &mac_control->rings[i];
4823
4824 rx_intr_handler(ring, 0);
4825 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004826 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004827
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004828 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004829 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004830 * will ensure that the actual interrupt causing bit get's
4831 * cleared and hence a read can be avoided.
4832 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004833 if (reason & GEN_INTR_TXTRAFFIC)
4834 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004835
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004836 for (i = 0; i < config->tx_fifo_num; i++)
4837 tx_intr_handler(&mac_control->fifos[i]);
4838
4839 if (reason & GEN_INTR_TXPIC)
4840 s2io_txpic_intr_handle(sp);
4841
4842 /*
4843 * Reallocate the buffers from the interrupt handler itself.
4844 */
4845 if (!config->napi) {
Joe Perches13d866a2009-08-24 17:29:41 +00004846 for (i = 0; i < config->rx_ring_num; i++) {
4847 struct ring_info *ring = &mac_control->rings[i];
4848
4849 s2io_chk_rx_buffers(sp, ring);
4850 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004851 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004852 writeq(sp->general_int_mask, &bar0->general_int_mask);
4853 readl(&bar0->general_int_status);
4854
4855 return IRQ_HANDLED;
4856
Joe Perchesd44570e2009-08-24 17:29:44 +00004857 } else if (!reason) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004858 /* The interrupt was not raised by us */
4859 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004860 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004861
Linus Torvalds1da177e2005-04-16 15:20:36 -07004862 return IRQ_HANDLED;
4863}
4864
4865/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004866 * s2io_updt_stats -
4867 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004868static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004869{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004870 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004871 u64 val64;
4872 int cnt = 0;
4873
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004874 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004875 /* Apprx 30us on a 133 MHz bus */
4876 val64 = SET_UPDT_CLICKS(10) |
4877 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4878 writeq(val64, &bar0->stat_cfg);
4879 do {
4880 udelay(100);
4881 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004882 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004883 break;
4884 cnt++;
4885 if (cnt == 5)
4886 break; /* Updt failed */
Joe Perchesd44570e2009-08-24 17:29:44 +00004887 } while (1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004888 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004889}
4890
4891/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004892 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004893 * @dev : pointer to the device structure.
4894 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004895 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004896 * structure and returns a pointer to the same.
4897 * Return value:
4898 * pointer to the updated net_device_stats structure.
4899 */
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004900static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004901{
Wang Chen4cf16532008-11-12 23:38:14 -08004902 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00004903 struct mac_info *mac_control = &sp->mac_control;
4904 struct stat_block *stats = mac_control->stats_info;
Jon Mason4a490432010-07-02 09:13:49 +00004905 u64 delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004906
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004907 /* Configure Stats for immediate updt */
4908 s2io_updt_stats(sp);
4909
Jon Mason4a490432010-07-02 09:13:49 +00004910 /* A device reset will cause the on-adapter statistics to be zero'ed.
4911 * This can be done while running by changing the MTU. To prevent the
4912 * system from having the stats zero'ed, the driver keeps a copy of the
4913 * last update to the system (which is also zero'ed on reset). This
4914 * enables the driver to accurately know the delta between the last
4915 * update and the current update.
4916 */
4917 delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
4918 le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets;
4919 sp->stats.rx_packets += delta;
4920 dev->stats.rx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004921
Jon Mason4a490432010-07-02 09:13:49 +00004922 delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 |
4923 le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets;
4924 sp->stats.tx_packets += delta;
4925 dev->stats.tx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004926
Jon Mason4a490432010-07-02 09:13:49 +00004927 delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
4928 le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes;
4929 sp->stats.rx_bytes += delta;
4930 dev->stats.rx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004931
Jon Mason4a490432010-07-02 09:13:49 +00004932 delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
4933 le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes;
4934 sp->stats.tx_bytes += delta;
4935 dev->stats.tx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004936
Jon Mason4a490432010-07-02 09:13:49 +00004937 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors;
4938 sp->stats.rx_errors += delta;
4939 dev->stats.rx_errors += delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004940
Jon Mason4a490432010-07-02 09:13:49 +00004941 delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
4942 le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors;
4943 sp->stats.tx_errors += delta;
4944 dev->stats.tx_errors += delta;
Joe Perches13d866a2009-08-24 17:29:41 +00004945
Jon Mason4a490432010-07-02 09:13:49 +00004946 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped;
4947 sp->stats.rx_dropped += delta;
4948 dev->stats.rx_dropped += delta;
4949
4950 delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped;
4951 sp->stats.tx_dropped += delta;
4952 dev->stats.tx_dropped += delta;
4953
4954 /* The adapter MAC interprets pause frames as multicast packets, but
4955 * does not pass them up. This erroneously increases the multicast
4956 * packet count and needs to be deducted when the multicast frame count
4957 * is queried.
4958 */
4959 delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
4960 le32_to_cpu(stats->rmac_vld_mcst_frms);
4961 delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms);
4962 delta -= sp->stats.multicast;
4963 sp->stats.multicast += delta;
4964 dev->stats.multicast += delta;
4965
4966 delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
4967 le32_to_cpu(stats->rmac_usized_frms)) +
4968 le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors;
4969 sp->stats.rx_length_errors += delta;
4970 dev->stats.rx_length_errors += delta;
4971
4972 delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors;
4973 sp->stats.rx_crc_errors += delta;
4974 dev->stats.rx_crc_errors += delta;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004975
Joe Perchesd44570e2009-08-24 17:29:44 +00004976 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004977}
4978
4979/**
4980 * s2io_set_multicast - entry point for multicast address enable/disable.
4981 * @dev : pointer to the device structure
4982 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004983 * This function is a driver entry point which gets called by the kernel
4984 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004985 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4986 * determine, if multicast address must be enabled or if promiscuous mode
4987 * is to be disabled etc.
4988 * Return value:
4989 * void.
4990 */
4991
4992static void s2io_set_multicast(struct net_device *dev)
4993{
4994 int i, j, prev_cnt;
Jiri Pirko22bedad2010-04-01 21:22:57 +00004995 struct netdev_hw_addr *ha;
Wang Chen4cf16532008-11-12 23:38:14 -08004996 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004997 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004998 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
Joe Perchesd44570e2009-08-24 17:29:44 +00004999 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005000 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005001 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005002 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005003
5004 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
5005 /* Enable all Multicast addresses */
5006 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
5007 &bar0->rmac_addr_data0_mem);
5008 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
5009 &bar0->rmac_addr_data1_mem);
5010 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005011 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5012 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005013 writeq(val64, &bar0->rmac_addr_cmd_mem);
5014 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005015 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005016 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5017 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005018
5019 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005020 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005021 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
5022 /* Disable all Multicast addresses */
5023 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5024 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07005025 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
5026 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005027 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005028 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5029 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005030 writeq(val64, &bar0->rmac_addr_cmd_mem);
5031 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005032 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005033 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5034 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005035
5036 sp->m_cast_flg = 0;
5037 sp->all_multi_pos = 0;
5038 }
5039
5040 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
5041 /* Put the NIC into promiscuous mode */
5042 add = &bar0->mac_cfg;
5043 val64 = readq(&bar0->mac_cfg);
5044 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
5045
5046 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005047 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005048 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5049 writel((u32) (val64 >> 32), (add + 4));
5050
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005051 if (vlan_tag_strip != 1) {
5052 val64 = readq(&bar0->rx_pa_cfg);
5053 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
5054 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005055 sp->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005056 }
5057
Linus Torvalds1da177e2005-04-16 15:20:36 -07005058 val64 = readq(&bar0->mac_cfg);
5059 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07005060 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005061 dev->name);
5062 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
5063 /* Remove the NIC from promiscuous mode */
5064 add = &bar0->mac_cfg;
5065 val64 = readq(&bar0->mac_cfg);
5066 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
5067
5068 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005069 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005070 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5071 writel((u32) (val64 >> 32), (add + 4));
5072
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005073 if (vlan_tag_strip != 0) {
5074 val64 = readq(&bar0->rx_pa_cfg);
5075 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
5076 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005077 sp->vlan_strip_flag = 1;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005078 }
5079
Linus Torvalds1da177e2005-04-16 15:20:36 -07005080 val64 = readq(&bar0->mac_cfg);
5081 sp->promisc_flg = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005082 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005083 }
5084
5085 /* Update individual M_CAST address list */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005086 if ((!sp->m_cast_flg) && netdev_mc_count(dev)) {
5087 if (netdev_mc_count(dev) >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005088 (config->max_mc_addr - config->max_mac_addr)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005089 DBG_PRINT(ERR_DBG,
5090 "%s: No more Rx filters can be added - "
5091 "please enable ALL_MULTI instead\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005092 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005093 return;
5094 }
5095
5096 prev_cnt = sp->mc_addr_count;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005097 sp->mc_addr_count = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005098
5099 /* Clear out the previous list of Mc in the H/W. */
5100 for (i = 0; i < prev_cnt; i++) {
5101 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5102 &bar0->rmac_addr_data0_mem);
5103 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005104 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005105 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005106 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5107 RMAC_ADDR_CMD_MEM_OFFSET
5108 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005109 writeq(val64, &bar0->rmac_addr_cmd_mem);
5110
5111 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005112 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005113 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5114 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005115 DBG_PRINT(ERR_DBG,
5116 "%s: Adding Multicasts failed\n",
5117 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005118 return;
5119 }
5120 }
5121
5122 /* Create the new Rx filter list and update the same in H/W. */
Jiri Pirko55085902010-02-18 00:42:54 +00005123 i = 0;
Jiri Pirko22bedad2010-04-01 21:22:57 +00005124 netdev_for_each_mc_addr(ha, dev) {
Jeff Garzika7a80d52006-03-04 12:06:51 -05005125 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005126 for (j = 0; j < ETH_ALEN; j++) {
Jiri Pirko22bedad2010-04-01 21:22:57 +00005127 mac_addr |= ha->addr[j];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005128 mac_addr <<= 8;
5129 }
5130 mac_addr >>= 8;
5131 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
5132 &bar0->rmac_addr_data0_mem);
5133 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005134 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005135 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005136 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5137 RMAC_ADDR_CMD_MEM_OFFSET
5138 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005139 writeq(val64, &bar0->rmac_addr_cmd_mem);
5140
5141 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005142 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005143 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5144 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005145 DBG_PRINT(ERR_DBG,
5146 "%s: Adding Multicasts failed\n",
5147 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005148 return;
5149 }
Jiri Pirko55085902010-02-18 00:42:54 +00005150 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005151 }
5152 }
5153}
5154
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005155/* read from CAM unicast & multicast addresses and store it in
5156 * def_mac_addr structure
5157 */
Hannes Ederdac499f2008-12-25 23:56:45 -08005158static void do_s2io_store_unicast_mc(struct s2io_nic *sp)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005159{
5160 int offset;
5161 u64 mac_addr = 0x0;
5162 struct config_param *config = &sp->config;
5163
5164 /* store unicast & multicast mac addresses */
5165 for (offset = 0; offset < config->max_mc_addr; offset++) {
5166 mac_addr = do_s2io_read_unicast_mc(sp, offset);
5167 /* if read fails disable the entry */
5168 if (mac_addr == FAILURE)
5169 mac_addr = S2IO_DISABLE_MAC_ENTRY;
5170 do_s2io_copy_mac_addr(sp, offset, mac_addr);
5171 }
5172}
5173
5174/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
5175static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
5176{
5177 int offset;
5178 struct config_param *config = &sp->config;
5179 /* restore unicast mac address */
5180 for (offset = 0; offset < config->max_mac_addr; offset++)
5181 do_s2io_prog_unicast(sp->dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005182 sp->def_mac_addr[offset].mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005183
5184 /* restore multicast mac address */
5185 for (offset = config->mc_start_offset;
Joe Perchesd44570e2009-08-24 17:29:44 +00005186 offset < config->max_mc_addr; offset++)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005187 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
5188}
5189
5190/* add a multicast MAC address to CAM */
5191static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
5192{
5193 int i;
5194 u64 mac_addr = 0;
5195 struct config_param *config = &sp->config;
5196
5197 for (i = 0; i < ETH_ALEN; i++) {
5198 mac_addr <<= 8;
5199 mac_addr |= addr[i];
5200 }
5201 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
5202 return SUCCESS;
5203
5204 /* check if the multicast mac already preset in CAM */
5205 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
5206 u64 tmp64;
5207 tmp64 = do_s2io_read_unicast_mc(sp, i);
5208 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5209 break;
5210
5211 if (tmp64 == mac_addr)
5212 return SUCCESS;
5213 }
5214 if (i == config->max_mc_addr) {
5215 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005216 "CAM full no space left for multicast MAC\n");
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005217 return FAILURE;
5218 }
5219 /* Update the internal structure with this new mac address */
5220 do_s2io_copy_mac_addr(sp, i, mac_addr);
5221
Joe Perchesd44570e2009-08-24 17:29:44 +00005222 return do_s2io_add_mac(sp, mac_addr, i);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005223}
5224
5225/* add MAC address to CAM */
5226static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005227{
5228 u64 val64;
5229 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5230
5231 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
Joe Perchesd44570e2009-08-24 17:29:44 +00005232 &bar0->rmac_addr_data0_mem);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005233
Joe Perchesd44570e2009-08-24 17:29:44 +00005234 val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005235 RMAC_ADDR_CMD_MEM_OFFSET(off);
5236 writeq(val64, &bar0->rmac_addr_cmd_mem);
5237
5238 /* Wait till command completes */
5239 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005240 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5241 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005242 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005243 return FAILURE;
5244 }
5245 return SUCCESS;
5246}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005247/* deletes a specified unicast/multicast mac entry from CAM */
5248static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5249{
5250 int offset;
5251 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5252 struct config_param *config = &sp->config;
5253
5254 for (offset = 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00005255 offset < config->max_mc_addr; offset++) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005256 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5257 if (tmp64 == addr) {
5258 /* disable the entry by writing 0xffffffffffffULL */
5259 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5260 return FAILURE;
5261 /* store the new mac list from CAM */
5262 do_s2io_store_unicast_mc(sp);
5263 return SUCCESS;
5264 }
5265 }
5266 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00005267 (unsigned long long)addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005268 return FAILURE;
5269}
5270
5271/* read mac entries from CAM */
5272static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5273{
5274 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5275 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5276
5277 /* read mac addr */
Joe Perchesd44570e2009-08-24 17:29:44 +00005278 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005279 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5280 writeq(val64, &bar0->rmac_addr_cmd_mem);
5281
5282 /* Wait till command completes */
5283 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005284 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5285 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005286 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5287 return FAILURE;
5288 }
5289 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00005290
5291 return tmp64 >> 16;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005292}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005293
Linus Torvalds1da177e2005-04-16 15:20:36 -07005294/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005295 * s2io_set_mac_addr driver entry point
5296 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005297
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005298static int s2io_set_mac_addr(struct net_device *dev, void *p)
5299{
5300 struct sockaddr *addr = p;
5301
5302 if (!is_valid_ether_addr(addr->sa_data))
5303 return -EINVAL;
5304
5305 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5306
5307 /* store the MAC address in CAM */
Joe Perchesd44570e2009-08-24 17:29:44 +00005308 return do_s2io_prog_unicast(dev, dev->dev_addr);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005309}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005310/**
5311 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005312 * @dev : pointer to the device structure.
5313 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005314 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005315 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005316 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005317 * as defined in errno.h file on failure.
5318 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005319
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005320static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005321{
Wang Chen4cf16532008-11-12 23:38:14 -08005322 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005323 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005324 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005325 u64 tmp64;
5326 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005327
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005328 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00005329 * Set the new MAC address as the new unicast filter and reflect this
5330 * change on the device address registered with the OS. It will be
5331 * at offset 0.
5332 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005333 for (i = 0; i < ETH_ALEN; i++) {
5334 mac_addr <<= 8;
5335 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005336 perm_addr <<= 8;
5337 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005338 }
5339
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005340 /* check if the dev_addr is different than perm_addr */
5341 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005342 return SUCCESS;
5343
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005344 /* check if the mac already preset in CAM */
5345 for (i = 1; i < config->max_mac_addr; i++) {
5346 tmp64 = do_s2io_read_unicast_mc(sp, i);
5347 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5348 break;
5349
5350 if (tmp64 == mac_addr) {
5351 DBG_PRINT(INFO_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005352 "MAC addr:0x%llx already present in CAM\n",
5353 (unsigned long long)mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005354 return SUCCESS;
5355 }
5356 }
5357 if (i == config->max_mac_addr) {
5358 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5359 return FAILURE;
5360 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005361 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005362 do_s2io_copy_mac_addr(sp, i, mac_addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00005363
5364 return do_s2io_add_mac(sp, mac_addr, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005365}
5366
5367/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005368 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005369 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5370 * @info: pointer to the structure with parameters given by ethtool to set
5371 * link information.
5372 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005373 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005374 * the NIC.
5375 * Return value:
5376 * 0 on success.
Joe Perchesd44570e2009-08-24 17:29:44 +00005377 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005378
5379static int s2io_ethtool_sset(struct net_device *dev,
5380 struct ethtool_cmd *info)
5381{
Wang Chen4cf16532008-11-12 23:38:14 -08005382 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005383 if ((info->autoneg == AUTONEG_ENABLE) ||
David Decotigny25db0332011-04-27 18:32:39 +00005384 (ethtool_cmd_speed(info) != SPEED_10000) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005385 (info->duplex != DUPLEX_FULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005386 return -EINVAL;
5387 else {
5388 s2io_close(sp->dev);
5389 s2io_open(sp->dev);
5390 }
5391
5392 return 0;
5393}
5394
5395/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005396 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005397 * @sp : private member of the device structure, pointer to the
5398 * s2io_nic structure.
5399 * @info : pointer to the structure with parameters given by ethtool
5400 * to return link information.
5401 * Description:
5402 * Returns link specific information like speed, duplex etc.. to ethtool.
5403 * Return value :
5404 * return 0 on success.
5405 */
5406
5407static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5408{
Wang Chen4cf16532008-11-12 23:38:14 -08005409 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005410 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5411 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5412 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005413
5414 /* info->transceiver */
5415 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005416
5417 if (netif_carrier_ok(sp->dev)) {
David Decotigny70739492011-04-27 18:32:40 +00005418 ethtool_cmd_speed_set(info, SPEED_10000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005419 info->duplex = DUPLEX_FULL;
5420 } else {
David Decotigny70739492011-04-27 18:32:40 +00005421 ethtool_cmd_speed_set(info, -1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005422 info->duplex = -1;
5423 }
5424
5425 info->autoneg = AUTONEG_DISABLE;
5426 return 0;
5427}
5428
5429/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005430 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5431 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005432 * s2io_nic structure.
5433 * @info : pointer to the structure with parameters given by ethtool to
5434 * return driver information.
5435 * Description:
5436 * Returns driver specefic information like name, version etc.. to ethtool.
5437 * Return value:
5438 * void
5439 */
5440
5441static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5442 struct ethtool_drvinfo *info)
5443{
Wang Chen4cf16532008-11-12 23:38:14 -08005444 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005445
John W. Linvilledbc23092005-09-28 17:50:51 -04005446 strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
5447 strncpy(info->version, s2io_driver_version, sizeof(info->version));
5448 strncpy(info->fw_version, "", sizeof(info->fw_version));
5449 strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005450 info->regdump_len = XENA_REG_SPACE;
5451 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005452}
5453
5454/**
5455 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005456 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005457 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005458 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005459 * dumping the registers.
5460 * @reg_space: The input argumnet into which all the registers are dumped.
5461 * Description:
5462 * Dumps the entire register space of xFrame NIC into the user given
5463 * buffer area.
5464 * Return value :
5465 * void .
Joe Perchesd44570e2009-08-24 17:29:44 +00005466 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005467
5468static void s2io_ethtool_gregs(struct net_device *dev,
5469 struct ethtool_regs *regs, void *space)
5470{
5471 int i;
5472 u64 reg;
Joe Perchesd44570e2009-08-24 17:29:44 +00005473 u8 *reg_space = (u8 *)space;
Wang Chen4cf16532008-11-12 23:38:14 -08005474 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005475
5476 regs->len = XENA_REG_SPACE;
5477 regs->version = sp->pdev->subsystem_device;
5478
5479 for (i = 0; i < regs->len; i += 8) {
5480 reg = readq(sp->bar0 + i);
5481 memcpy((reg_space + i), &reg, 8);
5482 }
5483}
5484
stephen hemminger034e3452011-04-04 15:09:25 +00005485/*
5486 * s2io_set_led - control NIC led
Joe Perchesd44570e2009-08-24 17:29:44 +00005487 */
stephen hemminger034e3452011-04-04 15:09:25 +00005488static void s2io_set_led(struct s2io_nic *sp, bool on)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005489{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005490 struct XENA_dev_config __iomem *bar0 = sp->bar0;
stephen hemminger034e3452011-04-04 15:09:25 +00005491 u16 subid = sp->pdev->subsystem_device;
5492 u64 val64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005493
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005494 if ((sp->device_type == XFRAME_II_DEVICE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005495 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005496 val64 = readq(&bar0->gpio_control);
stephen hemminger034e3452011-04-04 15:09:25 +00005497 if (on)
5498 val64 |= GPIO_CTRL_GPIO_0;
5499 else
5500 val64 &= ~GPIO_CTRL_GPIO_0;
5501
Linus Torvalds1da177e2005-04-16 15:20:36 -07005502 writeq(val64, &bar0->gpio_control);
5503 } else {
5504 val64 = readq(&bar0->adapter_control);
stephen hemminger034e3452011-04-04 15:09:25 +00005505 if (on)
5506 val64 |= ADAPTER_LED_ON;
5507 else
5508 val64 &= ~ADAPTER_LED_ON;
5509
Linus Torvalds1da177e2005-04-16 15:20:36 -07005510 writeq(val64, &bar0->adapter_control);
5511 }
5512
Linus Torvalds1da177e2005-04-16 15:20:36 -07005513}
5514
5515/**
stephen hemminger034e3452011-04-04 15:09:25 +00005516 * s2io_ethtool_set_led - To physically identify the nic on the system.
5517 * @dev : network device
5518 * @state: led setting
5519 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005520 * 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005525 */
5526
stephen hemminger034e3452011-04-04 15:09:25 +00005527static int s2io_ethtool_set_led(struct net_device *dev,
5528 enum ethtool_phys_id_state state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005529{
Wang Chen4cf16532008-11-12 23:38:14 -08005530 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005531 struct XENA_dev_config __iomem *bar0 = sp->bar0;
stephen hemminger034e3452011-04-04 15:09:25 +00005532 u16 subid = sp->pdev->subsystem_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005533
Joe Perchesd44570e2009-08-24 17:29:44 +00005534 if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) {
stephen hemminger034e3452011-04-04 15:09:25 +00005535 u64 val64 = readq(&bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005536 if (!(val64 & ADAPTER_CNTL_EN)) {
Joe Perches6cef2b82009-08-24 17:29:45 +00005537 pr_err("Adapter Link down, cannot blink LED\n");
stephen hemminger034e3452011-04-04 15:09:25 +00005538 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005539 }
5540 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005541
stephen hemminger034e3452011-04-04 15:09:25 +00005542 switch (state) {
5543 case ETHTOOL_ID_ACTIVE:
5544 sp->adapt_ctrl_org = readq(&bar0->gpio_control);
Allan, Bruce Wfce55922011-04-13 13:09:10 +00005545 return 1; /* cycle on/off once per second */
stephen hemminger034e3452011-04-04 15:09:25 +00005546
5547 case ETHTOOL_ID_ON:
5548 s2io_set_led(sp, true);
5549 break;
5550
5551 case ETHTOOL_ID_OFF:
5552 s2io_set_led(sp, false);
5553 break;
5554
5555 case ETHTOOL_ID_INACTIVE:
5556 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid))
5557 writeq(sp->adapt_ctrl_org, &bar0->gpio_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005558 }
5559
5560 return 0;
5561}
5562
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005563static void s2io_ethtool_gringparam(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005564 struct ethtool_ringparam *ering)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005565{
Wang Chen4cf16532008-11-12 23:38:14 -08005566 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00005567 int i, tx_desc_count = 0, rx_desc_count = 0;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005568
Jon Mason1853e2e2010-12-10 15:40:01 +00005569 if (sp->rxd_mode == RXD_MODE_1) {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005570 ering->rx_max_pending = MAX_RX_DESC_1;
Jon Mason1853e2e2010-12-10 15:40:01 +00005571 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5572 } else {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005573 ering->rx_max_pending = MAX_RX_DESC_2;
Jon Mason1853e2e2010-12-10 15:40:01 +00005574 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5575 }
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005576
5577 ering->rx_mini_max_pending = 0;
Jon Mason1853e2e2010-12-10 15:40:01 +00005578 ering->tx_max_pending = MAX_TX_DESC;
5579
5580 for (i = 0; i < sp->config.rx_ring_num; i++)
5581 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
5582 ering->rx_pending = rx_desc_count;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005583 ering->rx_jumbo_pending = rx_desc_count;
Jon Mason1853e2e2010-12-10 15:40:01 +00005584 ering->rx_mini_pending = 0;
5585
5586 for (i = 0; i < sp->config.tx_fifo_num; i++)
5587 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
5588 ering->tx_pending = tx_desc_count;
5589 DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds);
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005590}
5591
Linus Torvalds1da177e2005-04-16 15:20:36 -07005592/**
5593 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005594 * @sp : private member of the device structure, which is a pointer to the
5595 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005596 * @ep : pointer to the structure with pause parameters given by ethtool.
5597 * Description:
5598 * Returns the Pause frame generation and reception capability of the NIC.
5599 * Return value:
5600 * void
5601 */
5602static void s2io_ethtool_getpause_data(struct net_device *dev,
5603 struct ethtool_pauseparam *ep)
5604{
5605 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005606 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005607 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005608
5609 val64 = readq(&bar0->rmac_pause_cfg);
5610 if (val64 & RMAC_PAUSE_GEN_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005611 ep->tx_pause = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005612 if (val64 & RMAC_PAUSE_RX_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005613 ep->rx_pause = true;
5614 ep->autoneg = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005615}
5616
5617/**
5618 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005619 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005620 * s2io_nic structure.
5621 * @ep : pointer to the structure with pause parameters given by ethtool.
5622 * Description:
5623 * It can be used to set or reset Pause frame generation or reception
5624 * support of the NIC.
5625 * Return value:
5626 * int, returns 0 on Success
5627 */
5628
5629static int s2io_ethtool_setpause_data(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005630 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005631{
5632 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005633 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005634 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005635
5636 val64 = readq(&bar0->rmac_pause_cfg);
5637 if (ep->tx_pause)
5638 val64 |= RMAC_PAUSE_GEN_ENABLE;
5639 else
5640 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5641 if (ep->rx_pause)
5642 val64 |= RMAC_PAUSE_RX_ENABLE;
5643 else
5644 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5645 writeq(val64, &bar0->rmac_pause_cfg);
5646 return 0;
5647}
5648
5649/**
5650 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005651 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005652 * s2io_nic structure.
5653 * @off : offset at which the data must be written
5654 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005655 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005656 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005657 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005658 * read data.
5659 * NOTE: Will allow to read only part of the EEPROM visible through the
5660 * I2C bus.
5661 * Return value:
5662 * -1 on failure and 0 on success.
5663 */
5664
5665#define S2IO_DEV_ID 5
Joe Perchesd44570e2009-08-24 17:29:44 +00005666static int read_eeprom(struct s2io_nic *sp, int off, u64 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005667{
5668 int ret = -1;
5669 u32 exit_cnt = 0;
5670 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005671 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005672
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005673 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005674 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5675 I2C_CONTROL_ADDR(off) |
5676 I2C_CONTROL_BYTE_CNT(0x3) |
5677 I2C_CONTROL_READ |
5678 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005679 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005680
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005681 while (exit_cnt < 5) {
5682 val64 = readq(&bar0->i2c_control);
5683 if (I2C_CONTROL_CNTL_END(val64)) {
5684 *data = I2C_CONTROL_GET_DATA(val64);
5685 ret = 0;
5686 break;
5687 }
5688 msleep(50);
5689 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005690 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005691 }
5692
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005693 if (sp->device_type == XFRAME_II_DEVICE) {
5694 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005695 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005696 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5697 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5698 val64 |= SPI_CONTROL_REQ;
5699 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5700 while (exit_cnt < 5) {
5701 val64 = readq(&bar0->spi_control);
5702 if (val64 & SPI_CONTROL_NACK) {
5703 ret = 1;
5704 break;
5705 } else if (val64 & SPI_CONTROL_DONE) {
5706 *data = readq(&bar0->spi_data);
5707 *data &= 0xffffff;
5708 ret = 0;
5709 break;
5710 }
5711 msleep(50);
5712 exit_cnt++;
5713 }
5714 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005715 return ret;
5716}
5717
5718/**
5719 * write_eeprom - actually writes the relevant part of the data value.
5720 * @sp : private member of the device structure, which is a pointer to the
5721 * s2io_nic structure.
5722 * @off : offset at which the data must be written
5723 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005724 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005725 * the Eeprom. (max of 3)
5726 * Description:
5727 * Actually writes the relevant part of the data value into the Eeprom
5728 * through the I2C bus.
5729 * Return value:
5730 * 0 on success, -1 on failure.
5731 */
5732
Joe Perchesd44570e2009-08-24 17:29:44 +00005733static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005734{
5735 int exit_cnt = 0, ret = -1;
5736 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005737 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005738
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005739 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005740 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5741 I2C_CONTROL_ADDR(off) |
5742 I2C_CONTROL_BYTE_CNT(cnt) |
5743 I2C_CONTROL_SET_DATA((u32)data) |
5744 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005745 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005746
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005747 while (exit_cnt < 5) {
5748 val64 = readq(&bar0->i2c_control);
5749 if (I2C_CONTROL_CNTL_END(val64)) {
5750 if (!(val64 & I2C_CONTROL_NACK))
5751 ret = 0;
5752 break;
5753 }
5754 msleep(50);
5755 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005756 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005757 }
5758
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005759 if (sp->device_type == XFRAME_II_DEVICE) {
5760 int write_cnt = (cnt == 8) ? 0 : cnt;
Joe Perchesd44570e2009-08-24 17:29:44 +00005761 writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005762
5763 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005764 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005765 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5766 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5767 val64 |= SPI_CONTROL_REQ;
5768 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5769 while (exit_cnt < 5) {
5770 val64 = readq(&bar0->spi_control);
5771 if (val64 & SPI_CONTROL_NACK) {
5772 ret = 1;
5773 break;
5774 } else if (val64 & SPI_CONTROL_DONE) {
5775 ret = 0;
5776 break;
5777 }
5778 msleep(50);
5779 exit_cnt++;
5780 }
5781 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005782 return ret;
5783}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005784static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005785{
Ananda Rajub41477f2006-07-24 19:52:49 -04005786 u8 *vpd_data;
5787 u8 data;
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005788 int i = 0, cnt, len, fail = 0;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005789 int vpd_addr = 0x80;
Joe Perchesffb5df62009-08-24 17:29:47 +00005790 struct swStat *swstats = &nic->mac_control.stats_info->sw_stat;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005791
5792 if (nic->device_type == XFRAME_II_DEVICE) {
5793 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5794 vpd_addr = 0x80;
Joe Perchesd44570e2009-08-24 17:29:44 +00005795 } else {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005796 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5797 vpd_addr = 0x50;
5798 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005799 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005800
Ananda Rajub41477f2006-07-24 19:52:49 -04005801 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005802 if (!vpd_data) {
Joe Perchesffb5df62009-08-24 17:29:47 +00005803 swstats->mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005804 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005805 }
Joe Perchesffb5df62009-08-24 17:29:47 +00005806 swstats->mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005807
Joe Perchesd44570e2009-08-24 17:29:44 +00005808 for (i = 0; i < 256; i += 4) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005809 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5810 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5811 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
Joe Perchesd44570e2009-08-24 17:29:44 +00005812 for (cnt = 0; cnt < 5; cnt++) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005813 msleep(2);
5814 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5815 if (data == 0x80)
5816 break;
5817 }
5818 if (cnt >= 5) {
5819 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5820 fail = 1;
5821 break;
5822 }
5823 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5824 (u32 *)&vpd_data[i]);
5825 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005826
Joe Perchesd44570e2009-08-24 17:29:44 +00005827 if (!fail) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005828 /* read serial number of adapter */
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005829 for (cnt = 0; cnt < 252; cnt++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005830 if ((vpd_data[cnt] == 'S') &&
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005831 (vpd_data[cnt+1] == 'N')) {
5832 len = vpd_data[cnt+2];
5833 if (len < min(VPD_STRING_LEN, 256-cnt-2)) {
5834 memcpy(nic->serial_num,
5835 &vpd_data[cnt + 3],
5836 len);
5837 memset(nic->serial_num+len,
5838 0,
5839 VPD_STRING_LEN-len);
5840 break;
5841 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005842 }
5843 }
5844 }
5845
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005846 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
5847 len = vpd_data[1];
5848 memcpy(nic->product_name, &vpd_data[3], len);
5849 nic->product_name[len] = 0;
5850 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005851 kfree(vpd_data);
Joe Perchesffb5df62009-08-24 17:29:47 +00005852 swstats->mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005853}
5854
Linus Torvalds1da177e2005-04-16 15:20:36 -07005855/**
5856 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5857 * @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 -07005858 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005859 * containing all relevant information.
5860 * @data_buf : user defined value to be written into Eeprom.
5861 * Description: Reads the values stored in the Eeprom at given offset
5862 * for a given length. Stores these values int the input argument data
5863 * buffer 'data_buf' and returns these to the caller (ethtool.)
5864 * Return value:
5865 * int 0 on success
5866 */
5867
5868static int s2io_ethtool_geeprom(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005869 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005870{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005871 u32 i, valid;
5872 u64 data;
Wang Chen4cf16532008-11-12 23:38:14 -08005873 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005874
5875 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5876
5877 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5878 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5879
5880 for (i = 0; i < eeprom->len; i += 4) {
5881 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5882 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5883 return -EFAULT;
5884 }
5885 valid = INV(data);
5886 memcpy((data_buf + i), &valid, 4);
5887 }
5888 return 0;
5889}
5890
5891/**
5892 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5893 * @sp : private member of the device structure, which is a pointer to the
5894 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005895 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005896 * containing all relevant information.
5897 * @data_buf ; user defined value to be written into Eeprom.
5898 * Description:
5899 * Tries to write the user provided value in the Eeprom, at the offset
5900 * given by the user.
5901 * Return value:
5902 * 0 on success, -EFAULT on failure.
5903 */
5904
5905static int s2io_ethtool_seeprom(struct net_device *dev,
5906 struct ethtool_eeprom *eeprom,
Joe Perchesd44570e2009-08-24 17:29:44 +00005907 u8 *data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005908{
5909 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005910 u64 valid = 0, data;
Wang Chen4cf16532008-11-12 23:38:14 -08005911 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005912
5913 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5914 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005915 "ETHTOOL_WRITE_EEPROM Err: "
5916 "Magic value is wrong, it is 0x%x should be 0x%x\n",
5917 (sp->pdev->vendor | (sp->pdev->device << 16)),
5918 eeprom->magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005919 return -EFAULT;
5920 }
5921
5922 while (len) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005923 data = (u32)data_buf[cnt] & 0x000000FF;
5924 if (data)
5925 valid = (u32)(data << 24);
5926 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07005927 valid = data;
5928
5929 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5930 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005931 "ETHTOOL_WRITE_EEPROM Err: "
5932 "Cannot write into the specified offset\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005933 return -EFAULT;
5934 }
5935 cnt++;
5936 len--;
5937 }
5938
5939 return 0;
5940}
5941
5942/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005943 * s2io_register_test - reads and writes into all clock domains.
5944 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005945 * s2io_nic structure.
5946 * @data : variable that returns the result of each of the test conducted b
5947 * by the driver.
5948 * Description:
5949 * Read and write into all clock domains. The NIC has 3 clock domains,
5950 * see that registers in all the three regions are accessible.
5951 * Return value:
5952 * 0 on success.
5953 */
5954
Joe Perchesd44570e2009-08-24 17:29:44 +00005955static int s2io_register_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005956{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005957 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005958 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005959 int fail = 0;
5960
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005961 val64 = readq(&bar0->pif_rd_swapper_fb);
5962 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005963 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005964 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005965 }
5966
5967 val64 = readq(&bar0->rmac_pause_cfg);
5968 if (val64 != 0xc000ffff00000000ULL) {
5969 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005970 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005971 }
5972
5973 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005974 if (sp->device_type == XFRAME_II_DEVICE)
5975 exp_val = 0x0404040404040404ULL;
5976 else
5977 exp_val = 0x0808080808080808ULL;
5978 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005979 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005980 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005981 }
5982
5983 val64 = readq(&bar0->xgxs_efifo_cfg);
5984 if (val64 != 0x000000001923141EULL) {
5985 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005986 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005987 }
5988
5989 val64 = 0x5A5A5A5A5A5A5A5AULL;
5990 writeq(val64, &bar0->xmsi_data);
5991 val64 = readq(&bar0->xmsi_data);
5992 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5993 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005994 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005995 }
5996
5997 val64 = 0xA5A5A5A5A5A5A5A5ULL;
5998 writeq(val64, &bar0->xmsi_data);
5999 val64 = readq(&bar0->xmsi_data);
6000 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
6001 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00006002 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006003 }
6004
6005 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006006 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006007}
6008
6009/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006010 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006011 * @sp : private member of the device structure, which is a pointer to the
6012 * s2io_nic structure.
6013 * @data:variable that returns the result of each of the test conducted by
6014 * the driver.
6015 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006016 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07006017 * register.
6018 * Return value:
6019 * 0 on success.
6020 */
6021
Joe Perchesd44570e2009-08-24 17:29:44 +00006022static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006023{
6024 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006025 u64 ret_data, org_4F0, org_7F0;
6026 u8 saved_4F0 = 0, saved_7F0 = 0;
6027 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006028
6029 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006030 /* Note that SPI interface allows write access to all areas
6031 * of EEPROM. Hence doing all negative testing only for Xframe I.
6032 */
6033 if (sp->device_type == XFRAME_I_DEVICE)
6034 if (!write_eeprom(sp, 0, 0, 3))
6035 fail = 1;
6036
6037 /* Save current values at offsets 0x4F0 and 0x7F0 */
6038 if (!read_eeprom(sp, 0x4F0, &org_4F0))
6039 saved_4F0 = 1;
6040 if (!read_eeprom(sp, 0x7F0, &org_7F0))
6041 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006042
6043 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006044 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006045 fail = 1;
6046 if (read_eeprom(sp, 0x4F0, &ret_data))
6047 fail = 1;
6048
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006049 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006050 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006051 "Data written %llx Data read %llx\n",
6052 dev->name, (unsigned long long)0x12345,
6053 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006054 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006055 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006056
6057 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006058 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006059
6060 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006061 if (sp->device_type == XFRAME_I_DEVICE)
6062 if (!write_eeprom(sp, 0x07C, 0, 3))
6063 fail = 1;
6064
6065 /* Test Write Request at offset 0x7f0 */
6066 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
6067 fail = 1;
6068 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006069 fail = 1;
6070
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006071 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006072 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006073 "Data written %llx Data read %llx\n",
6074 dev->name, (unsigned long long)0x12345,
6075 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006076 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006077 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006078
6079 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006080 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006081
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006082 if (sp->device_type == XFRAME_I_DEVICE) {
6083 /* Test Write Error at offset 0x80 */
6084 if (!write_eeprom(sp, 0x080, 0, 3))
6085 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006086
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006087 /* Test Write Error at offset 0xfc */
6088 if (!write_eeprom(sp, 0x0FC, 0, 3))
6089 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006090
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006091 /* Test Write Error at offset 0x100 */
6092 if (!write_eeprom(sp, 0x100, 0, 3))
6093 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006094
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006095 /* Test Write Error at offset 4ec */
6096 if (!write_eeprom(sp, 0x4EC, 0, 3))
6097 fail = 1;
6098 }
6099
6100 /* Restore values at offsets 0x4F0 and 0x7F0 */
6101 if (saved_4F0)
6102 write_eeprom(sp, 0x4F0, org_4F0, 3);
6103 if (saved_7F0)
6104 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006105
6106 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006107 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006108}
6109
6110/**
6111 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006112 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006114 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07006115 * the driver.
6116 * Description:
6117 * This invokes the MemBist test of the card. We give around
6118 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006119 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006120 * Return value:
6121 * 0 on success and -1 on failure.
6122 */
6123
Joe Perchesd44570e2009-08-24 17:29:44 +00006124static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006125{
6126 u8 bist = 0;
6127 int cnt = 0, ret = -1;
6128
6129 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6130 bist |= PCI_BIST_START;
6131 pci_write_config_word(sp->pdev, PCI_BIST, bist);
6132
6133 while (cnt < 20) {
6134 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6135 if (!(bist & PCI_BIST_START)) {
6136 *data = (bist & PCI_BIST_CODE_MASK);
6137 ret = 0;
6138 break;
6139 }
6140 msleep(100);
6141 cnt++;
6142 }
6143
6144 return ret;
6145}
6146
6147/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006148 * s2io-link_test - verifies the link state of the nic
6149 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006150 * s2io_nic structure.
6151 * @data: variable that returns the result of each of the test conducted by
6152 * the driver.
6153 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006154 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07006155 * argument 'data' appropriately.
6156 * Return value:
6157 * 0 on success.
6158 */
6159
Joe Perchesd44570e2009-08-24 17:29:44 +00006160static int s2io_link_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006161{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006162 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006163 u64 val64;
6164
6165 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00006166 if (!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006167 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04006168 else
6169 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006170
Ananda Rajub41477f2006-07-24 19:52:49 -04006171 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006172}
6173
6174/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006175 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
6176 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006177 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006178 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006179 * conducted by the driver.
6180 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006181 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07006182 * access to the RldRam chip on the NIC.
6183 * Return value:
6184 * 0 on success.
6185 */
6186
Joe Perchesd44570e2009-08-24 17:29:44 +00006187static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006188{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006189 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006190 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006191 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006192
6193 val64 = readq(&bar0->adapter_control);
6194 val64 &= ~ADAPTER_ECC_EN;
6195 writeq(val64, &bar0->adapter_control);
6196
6197 val64 = readq(&bar0->mc_rldram_test_ctrl);
6198 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006199 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006200
6201 val64 = readq(&bar0->mc_rldram_mrs);
6202 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
6203 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6204
6205 val64 |= MC_RLDRAM_MRS_ENABLE;
6206 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6207
6208 while (iteration < 2) {
6209 val64 = 0x55555555aaaa0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006210 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006211 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006212 writeq(val64, &bar0->mc_rldram_test_d0);
6213
6214 val64 = 0xaaaa5a5555550000ULL;
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_d1);
6218
6219 val64 = 0x55aaaaaaaa5a0000ULL;
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_d2);
6223
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006224 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006225 writeq(val64, &bar0->mc_rldram_test_add);
6226
Joe Perchesd44570e2009-08-24 17:29:44 +00006227 val64 = MC_RLDRAM_TEST_MODE |
6228 MC_RLDRAM_TEST_WRITE |
6229 MC_RLDRAM_TEST_GO;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006230 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006231
6232 for (cnt = 0; cnt < 5; cnt++) {
6233 val64 = readq(&bar0->mc_rldram_test_ctrl);
6234 if (val64 & MC_RLDRAM_TEST_DONE)
6235 break;
6236 msleep(200);
6237 }
6238
6239 if (cnt == 5)
6240 break;
6241
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006242 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6243 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006244
6245 for (cnt = 0; cnt < 5; cnt++) {
6246 val64 = readq(&bar0->mc_rldram_test_ctrl);
6247 if (val64 & MC_RLDRAM_TEST_DONE)
6248 break;
6249 msleep(500);
6250 }
6251
6252 if (cnt == 5)
6253 break;
6254
6255 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006256 if (!(val64 & MC_RLDRAM_TEST_PASS))
6257 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006258
6259 iteration++;
6260 }
6261
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006262 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006263
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006264 /* Bring the adapter out of test mode */
6265 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6266
6267 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006268}
6269
6270/**
6271 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6272 * @sp : private member of the device structure, which is a pointer to the
6273 * s2io_nic structure.
6274 * @ethtest : pointer to a ethtool command specific structure that will be
6275 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006276 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006277 * conducted by the driver.
6278 * Description:
6279 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6280 * the health of the card.
6281 * Return value:
6282 * void
6283 */
6284
6285static void s2io_ethtool_test(struct net_device *dev,
6286 struct ethtool_test *ethtest,
Joe Perchesd44570e2009-08-24 17:29:44 +00006287 uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006288{
Wang Chen4cf16532008-11-12 23:38:14 -08006289 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006290 int orig_state = netif_running(sp->dev);
6291
6292 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6293 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006294 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006295 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006296
6297 if (s2io_register_test(sp, &data[0]))
6298 ethtest->flags |= ETH_TEST_FL_FAILED;
6299
6300 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006301
6302 if (s2io_rldram_test(sp, &data[3]))
6303 ethtest->flags |= ETH_TEST_FL_FAILED;
6304
6305 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006306
6307 if (s2io_eeprom_test(sp, &data[1]))
6308 ethtest->flags |= ETH_TEST_FL_FAILED;
6309
6310 if (s2io_bist_test(sp, &data[4]))
6311 ethtest->flags |= ETH_TEST_FL_FAILED;
6312
6313 if (orig_state)
6314 s2io_open(sp->dev);
6315
6316 data[2] = 0;
6317 } else {
6318 /* Online Tests. */
6319 if (!orig_state) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006320 DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006321 dev->name);
6322 data[0] = -1;
6323 data[1] = -1;
6324 data[2] = -1;
6325 data[3] = -1;
6326 data[4] = -1;
6327 }
6328
6329 if (s2io_link_test(sp, &data[2]))
6330 ethtest->flags |= ETH_TEST_FL_FAILED;
6331
6332 data[0] = 0;
6333 data[1] = 0;
6334 data[3] = 0;
6335 data[4] = 0;
6336 }
6337}
6338
6339static void s2io_get_ethtool_stats(struct net_device *dev,
6340 struct ethtool_stats *estats,
Joe Perchesd44570e2009-08-24 17:29:44 +00006341 u64 *tmp_stats)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006342{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006343 int i = 0, k;
Wang Chen4cf16532008-11-12 23:38:14 -08006344 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00006345 struct stat_block *stats = sp->mac_control.stats_info;
6346 struct swStat *swstats = &stats->sw_stat;
6347 struct xpakStat *xstats = &stats->xpak_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006348
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006349 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006350 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006351 (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 |
6352 le32_to_cpu(stats->tmac_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006353 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006354 (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
6355 le32_to_cpu(stats->tmac_data_octets);
6356 tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006357 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006358 (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 |
6359 le32_to_cpu(stats->tmac_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006360 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006361 (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 |
6362 le32_to_cpu(stats->tmac_bcst_frms);
6363 tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006364 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006365 (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 |
6366 le32_to_cpu(stats->tmac_ttl_octets);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006367 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006368 (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 |
6369 le32_to_cpu(stats->tmac_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006370 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006371 (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 |
6372 le32_to_cpu(stats->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006373 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006374 (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
6375 le32_to_cpu(stats->tmac_any_err_frms);
6376 tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets);
6377 tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets);
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_vld_ip_oflow) << 32 |
6380 le32_to_cpu(stats->tmac_vld_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006381 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006382 (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 |
6383 le32_to_cpu(stats->tmac_drop_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006384 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006385 (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 |
6386 le32_to_cpu(stats->tmac_icmp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006387 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006388 (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 |
6389 le32_to_cpu(stats->tmac_rst_tcp);
6390 tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp);
6391 tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 |
6392 le32_to_cpu(stats->tmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006393 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006394 (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
6395 le32_to_cpu(stats->rmac_vld_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006396 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006397 (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
6398 le32_to_cpu(stats->rmac_data_octets);
6399 tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms);
6400 tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_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_vld_mcst_frms_oflow) << 32 |
6403 le32_to_cpu(stats->rmac_vld_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006404 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006405 (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 |
6406 le32_to_cpu(stats->rmac_vld_bcst_frms);
6407 tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms);
6408 tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms);
6409 tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms);
6410 tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms);
6411 tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006412 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006413 (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 |
6414 le32_to_cpu(stats->rmac_ttl_octets);
Joe Perchesd44570e2009-08-24 17:29:44 +00006415 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006416 (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32
6417 | le32_to_cpu(stats->rmac_accepted_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006418 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006419 (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow)
6420 << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006421 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006422 (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 |
6423 le32_to_cpu(stats->rmac_discarded_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006424 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006425 (u64)le32_to_cpu(stats->rmac_drop_events_oflow)
6426 << 32 | le32_to_cpu(stats->rmac_drop_events);
6427 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets);
6428 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006429 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006430 (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
6431 le32_to_cpu(stats->rmac_usized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006432 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006433 (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 |
6434 le32_to_cpu(stats->rmac_osized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006435 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006436 (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 |
6437 le32_to_cpu(stats->rmac_frag_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006438 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006439 (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 |
6440 le32_to_cpu(stats->rmac_jabber_frms);
6441 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms);
6442 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms);
6443 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms);
6444 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms);
6445 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms);
6446 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006447 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006448 (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 |
6449 le32_to_cpu(stats->rmac_ip);
6450 tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets);
6451 tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip);
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_drop_ip_oflow) << 32 |
6454 le32_to_cpu(stats->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006455 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006456 (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 |
6457 le32_to_cpu(stats->rmac_icmp);
6458 tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006459 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006460 (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 |
6461 le32_to_cpu(stats->rmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006462 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006463 (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 |
6464 le32_to_cpu(stats->rmac_err_drp_udp);
6465 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym);
6466 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0);
6467 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1);
6468 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2);
6469 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3);
6470 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4);
6471 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5);
6472 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6);
6473 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7);
6474 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0);
6475 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1);
6476 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2);
6477 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3);
6478 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4);
6479 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5);
6480 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6);
6481 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006482 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006483 (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 |
6484 le32_to_cpu(stats->rmac_pause_cnt);
6485 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt);
6486 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt);
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_accepted_ip_oflow) << 32 |
6489 le32_to_cpu(stats->rmac_accepted_ip);
6490 tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp);
6491 tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt);
6492 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt);
6493 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt);
6494 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt);
6495 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt);
6496 tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt);
6497 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt);
6498 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt);
6499 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt);
6500 tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt);
6501 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt);
6502 tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt);
6503 tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt);
6504 tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt);
6505 tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt);
6506 tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt);
6507 tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt);
6508 tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006509
6510 /* Enhanced statistics exist only for Hercules */
Joe Perchesd44570e2009-08-24 17:29:44 +00006511 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006512 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006513 le64_to_cpu(stats->rmac_ttl_1519_4095_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006514 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006515 le64_to_cpu(stats->rmac_ttl_4096_8191_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006516 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006517 le64_to_cpu(stats->rmac_ttl_8192_max_frms);
6518 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms);
6519 tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms);
6520 tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms);
6521 tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms);
6522 tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms);
6523 tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard);
6524 tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard);
6525 tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard);
6526 tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard);
6527 tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard);
6528 tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard);
6529 tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard);
6530 tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006531 }
6532
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006533 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006534 tmp_stats[i++] = swstats->single_ecc_errs;
6535 tmp_stats[i++] = swstats->double_ecc_errs;
6536 tmp_stats[i++] = swstats->parity_err_cnt;
6537 tmp_stats[i++] = swstats->serious_err_cnt;
6538 tmp_stats[i++] = swstats->soft_reset_cnt;
6539 tmp_stats[i++] = swstats->fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006540 for (k = 0; k < MAX_RX_RINGS; k++)
Joe Perchesffb5df62009-08-24 17:29:47 +00006541 tmp_stats[i++] = swstats->ring_full_cnt[k];
6542 tmp_stats[i++] = xstats->alarm_transceiver_temp_high;
6543 tmp_stats[i++] = xstats->alarm_transceiver_temp_low;
6544 tmp_stats[i++] = xstats->alarm_laser_bias_current_high;
6545 tmp_stats[i++] = xstats->alarm_laser_bias_current_low;
6546 tmp_stats[i++] = xstats->alarm_laser_output_power_high;
6547 tmp_stats[i++] = xstats->alarm_laser_output_power_low;
6548 tmp_stats[i++] = xstats->warn_transceiver_temp_high;
6549 tmp_stats[i++] = xstats->warn_transceiver_temp_low;
6550 tmp_stats[i++] = xstats->warn_laser_bias_current_high;
6551 tmp_stats[i++] = xstats->warn_laser_bias_current_low;
6552 tmp_stats[i++] = xstats->warn_laser_output_power_high;
6553 tmp_stats[i++] = xstats->warn_laser_output_power_low;
6554 tmp_stats[i++] = swstats->clubbed_frms_cnt;
6555 tmp_stats[i++] = swstats->sending_both;
6556 tmp_stats[i++] = swstats->outof_sequence_pkts;
6557 tmp_stats[i++] = swstats->flush_max_pkts;
6558 if (swstats->num_aggregations) {
6559 u64 tmp = swstats->sum_avg_pkts_aggregated;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006560 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006561 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006562 * Since 64-bit divide does not work on all platforms,
6563 * do repeated subtraction.
6564 */
Joe Perchesffb5df62009-08-24 17:29:47 +00006565 while (tmp >= swstats->num_aggregations) {
6566 tmp -= swstats->num_aggregations;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006567 count++;
6568 }
6569 tmp_stats[i++] = count;
Joe Perchesd44570e2009-08-24 17:29:44 +00006570 } else
Ananda Rajubd1034f2006-04-21 19:20:22 -04006571 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006572 tmp_stats[i++] = swstats->mem_alloc_fail_cnt;
6573 tmp_stats[i++] = swstats->pci_map_fail_cnt;
6574 tmp_stats[i++] = swstats->watchdog_timer_cnt;
6575 tmp_stats[i++] = swstats->mem_allocated;
6576 tmp_stats[i++] = swstats->mem_freed;
6577 tmp_stats[i++] = swstats->link_up_cnt;
6578 tmp_stats[i++] = swstats->link_down_cnt;
6579 tmp_stats[i++] = swstats->link_up_time;
6580 tmp_stats[i++] = swstats->link_down_time;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006581
Joe Perchesffb5df62009-08-24 17:29:47 +00006582 tmp_stats[i++] = swstats->tx_buf_abort_cnt;
6583 tmp_stats[i++] = swstats->tx_desc_abort_cnt;
6584 tmp_stats[i++] = swstats->tx_parity_err_cnt;
6585 tmp_stats[i++] = swstats->tx_link_loss_cnt;
6586 tmp_stats[i++] = swstats->tx_list_proc_err_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006587
Joe Perchesffb5df62009-08-24 17:29:47 +00006588 tmp_stats[i++] = swstats->rx_parity_err_cnt;
6589 tmp_stats[i++] = swstats->rx_abort_cnt;
6590 tmp_stats[i++] = swstats->rx_parity_abort_cnt;
6591 tmp_stats[i++] = swstats->rx_rda_fail_cnt;
6592 tmp_stats[i++] = swstats->rx_unkn_prot_cnt;
6593 tmp_stats[i++] = swstats->rx_fcs_err_cnt;
6594 tmp_stats[i++] = swstats->rx_buf_size_err_cnt;
6595 tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt;
6596 tmp_stats[i++] = swstats->rx_unkn_err_cnt;
6597 tmp_stats[i++] = swstats->tda_err_cnt;
6598 tmp_stats[i++] = swstats->pfc_err_cnt;
6599 tmp_stats[i++] = swstats->pcc_err_cnt;
6600 tmp_stats[i++] = swstats->tti_err_cnt;
6601 tmp_stats[i++] = swstats->tpa_err_cnt;
6602 tmp_stats[i++] = swstats->sm_err_cnt;
6603 tmp_stats[i++] = swstats->lso_err_cnt;
6604 tmp_stats[i++] = swstats->mac_tmac_err_cnt;
6605 tmp_stats[i++] = swstats->mac_rmac_err_cnt;
6606 tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt;
6607 tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt;
6608 tmp_stats[i++] = swstats->rc_err_cnt;
6609 tmp_stats[i++] = swstats->prc_pcix_err_cnt;
6610 tmp_stats[i++] = swstats->rpa_err_cnt;
6611 tmp_stats[i++] = swstats->rda_err_cnt;
6612 tmp_stats[i++] = swstats->rti_err_cnt;
6613 tmp_stats[i++] = swstats->mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006614}
6615
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006616static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006617{
Joe Perchesd44570e2009-08-24 17:29:44 +00006618 return XENA_REG_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006619}
6620
6621
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006622static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006623{
Joe Perchesd44570e2009-08-24 17:29:44 +00006624 return XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006625}
6626
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006627static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006628{
Wang Chen4cf16532008-11-12 23:38:14 -08006629 struct s2io_nic *sp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006630
6631 switch (sset) {
6632 case ETH_SS_TEST:
6633 return S2IO_TEST_LEN;
6634 case ETH_SS_STATS:
Joe Perchesd44570e2009-08-24 17:29:44 +00006635 switch (sp->device_type) {
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006636 case XFRAME_I_DEVICE:
6637 return XFRAME_I_STAT_LEN;
6638 case XFRAME_II_DEVICE:
6639 return XFRAME_II_STAT_LEN;
6640 default:
6641 return 0;
6642 }
6643 default:
6644 return -EOPNOTSUPP;
6645 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006646}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006647
6648static void s2io_ethtool_get_strings(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006649 u32 stringset, u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006650{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006651 int stat_size = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08006652 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006653
Linus Torvalds1da177e2005-04-16 15:20:36 -07006654 switch (stringset) {
6655 case ETH_SS_TEST:
6656 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6657 break;
6658 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006659 stat_size = sizeof(ethtool_xena_stats_keys);
Joe Perchesd44570e2009-08-24 17:29:44 +00006660 memcpy(data, &ethtool_xena_stats_keys, stat_size);
6661 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006662 memcpy(data + stat_size,
Joe Perchesd44570e2009-08-24 17:29:44 +00006663 &ethtool_enhanced_stats_keys,
6664 sizeof(ethtool_enhanced_stats_keys));
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006665 stat_size += sizeof(ethtool_enhanced_stats_keys);
6666 }
6667
6668 memcpy(data + stat_size, &ethtool_driver_stats_keys,
Joe Perchesd44570e2009-08-24 17:29:44 +00006669 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006670 }
6671}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006672
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006673static int s2io_set_features(struct net_device *dev, u32 features)
Jon Mason958de192010-06-24 18:45:10 +00006674{
6675 struct s2io_nic *sp = netdev_priv(dev);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006676 u32 changed = (features ^ dev->features) & NETIF_F_LRO;
Jon Mason958de192010-06-24 18:45:10 +00006677
6678 if (changed && netif_running(dev)) {
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006679 int rc;
6680
Jon Mason958de192010-06-24 18:45:10 +00006681 s2io_stop_all_tx_queue(sp);
6682 s2io_card_down(sp);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006683 dev->features = features;
Jon Mason958de192010-06-24 18:45:10 +00006684 rc = s2io_card_up(sp);
6685 if (rc)
6686 s2io_reset(sp);
6687 else
6688 s2io_start_all_tx_queue(sp);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006689
6690 return rc ? rc : 1;
Jon Mason958de192010-06-24 18:45:10 +00006691 }
6692
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006693 return 0;
Jon Mason958de192010-06-24 18:45:10 +00006694}
6695
Jeff Garzik7282d492006-09-13 14:30:00 -04006696static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006697 .get_settings = s2io_ethtool_gset,
6698 .set_settings = s2io_ethtool_sset,
6699 .get_drvinfo = s2io_ethtool_gdrvinfo,
6700 .get_regs_len = s2io_ethtool_get_regs_len,
6701 .get_regs = s2io_ethtool_gregs,
6702 .get_link = ethtool_op_get_link,
6703 .get_eeprom_len = s2io_get_eeprom_len,
6704 .get_eeprom = s2io_ethtool_geeprom,
6705 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006706 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006707 .get_pauseparam = s2io_ethtool_getpause_data,
6708 .set_pauseparam = s2io_ethtool_setpause_data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006709 .self_test = s2io_ethtool_test,
6710 .get_strings = s2io_ethtool_get_strings,
stephen hemminger034e3452011-04-04 15:09:25 +00006711 .set_phys_id = s2io_ethtool_set_led,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006712 .get_ethtool_stats = s2io_get_ethtool_stats,
6713 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006714};
6715
6716/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006717 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006718 * @dev : Device pointer.
6719 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6720 * a proprietary structure used to pass information to the driver.
6721 * @cmd : This is used to distinguish between the different commands that
6722 * can be passed to the IOCTL functions.
6723 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006724 * Currently there are no special functionality supported in IOCTL, hence
6725 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006726 */
6727
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006728static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006729{
6730 return -EOPNOTSUPP;
6731}
6732
6733/**
6734 * s2io_change_mtu - entry point to change MTU size for the device.
6735 * @dev : device pointer.
6736 * @new_mtu : the new MTU size for the device.
6737 * Description: A driver entry point to change MTU size for the device.
6738 * Before changing the MTU the device must be stopped.
6739 * Return value:
6740 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6741 * file on failure.
6742 */
6743
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006744static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006745{
Wang Chen4cf16532008-11-12 23:38:14 -08006746 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006747 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006748
6749 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006750 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006751 return -EPERM;
6752 }
6753
Linus Torvalds1da177e2005-04-16 15:20:36 -07006754 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006755 if (netif_running(dev)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006756 s2io_stop_all_tx_queue(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006757 s2io_card_down(sp);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006758 ret = s2io_card_up(sp);
6759 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006760 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07006761 __func__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006762 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006763 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006764 s2io_wake_all_tx_queue(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006765 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006766 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006767 u64 val64 = new_mtu;
6768
6769 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6770 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006771
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006772 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006773}
6774
6775/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006776 * s2io_set_link - Set the LInk status
6777 * @data: long pointer to device private structue
6778 * Description: Sets the link status for the adapter
6779 */
6780
David Howellsc4028952006-11-22 14:57:56 +00006781static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006782{
Joe Perchesd44570e2009-08-24 17:29:44 +00006783 struct s2io_nic *nic = container_of(work, struct s2io_nic,
6784 set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006785 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006786 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006787 register u64 val64;
6788 u16 subid;
6789
Francois Romieu22747d62007-02-15 23:37:50 +01006790 rtnl_lock();
6791
6792 if (!netif_running(dev))
6793 goto out_unlock;
6794
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006795 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006796 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006797 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006798 }
6799
6800 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006801 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6802 /*
6803 * Allow a small delay for the NICs self initiated
6804 * cleanup to complete.
6805 */
6806 msleep(100);
6807 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006808
6809 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006810 if (LINK_IS_UP(val64)) {
6811 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6812 if (verify_xena_quiescence(nic)) {
6813 val64 = readq(&bar0->adapter_control);
6814 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006815 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006816 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
Joe Perchesd44570e2009-08-24 17:29:44 +00006817 nic->device_type, subid)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006818 val64 = readq(&bar0->gpio_control);
6819 val64 |= GPIO_CTRL_GPIO_0;
6820 writeq(val64, &bar0->gpio_control);
6821 val64 = readq(&bar0->gpio_control);
6822 } else {
6823 val64 |= ADAPTER_LED_ON;
6824 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006825 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00006826 nic->device_enabled_once = true;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006827 } else {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006828 DBG_PRINT(ERR_DBG,
6829 "%s: Error: device is not Quiescent\n",
6830 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006831 s2io_stop_all_tx_queue(nic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006832 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006833 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006834 val64 = readq(&bar0->adapter_control);
6835 val64 |= ADAPTER_LED_ON;
6836 writeq(val64, &bar0->adapter_control);
6837 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006838 } else {
6839 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6840 subid)) {
6841 val64 = readq(&bar0->gpio_control);
6842 val64 &= ~GPIO_CTRL_GPIO_0;
6843 writeq(val64, &bar0->gpio_control);
6844 val64 = readq(&bar0->gpio_control);
6845 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006846 /* turn off LED */
6847 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00006848 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006849 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006850 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006851 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006852 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006853
6854out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006855 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006856}
6857
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006858static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
Joe Perchesd44570e2009-08-24 17:29:44 +00006859 struct buffAdd *ba,
6860 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6861 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006862{
6863 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006864 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006865
6866 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006867 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006868 /* allocate skb */
6869 if (*skb) {
6870 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6871 /*
6872 * As Rx frame are not going to be processed,
6873 * using same mapped address for the Rxd
6874 * buffer pointer
6875 */
Veena Parat6d517a22007-07-23 02:20:51 -04006876 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006877 } else {
6878 *skb = dev_alloc_skb(size);
6879 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006880 DBG_PRINT(INFO_DBG,
6881 "%s: Out of memory to allocate %s\n",
6882 dev->name, "1 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006883 stats->mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006884 return -ENOMEM ;
6885 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006886 stats->mem_allocated += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006887 /* storing the mapped addr in a temp variable
6888 * such it will be used for next rxd whose
6889 * Host Control is NULL
6890 */
Veena Parat6d517a22007-07-23 02:20:51 -04006891 rxdp1->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006892 pci_map_single(sp->pdev, (*skb)->data,
6893 size - NET_IP_ALIGN,
6894 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006895 if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006896 goto memalloc_failed;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006897 rxdp->Host_Control = (unsigned long) (*skb);
6898 }
6899 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006900 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006901 /* Two buffer Mode */
6902 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006903 rxdp3->Buffer2_ptr = *temp2;
6904 rxdp3->Buffer0_ptr = *temp0;
6905 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006906 } else {
6907 *skb = dev_alloc_skb(size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006908 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006909 DBG_PRINT(INFO_DBG,
6910 "%s: Out of memory to allocate %s\n",
6911 dev->name,
6912 "2 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006913 stats->mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006914 return -ENOMEM;
6915 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006916 stats->mem_allocated += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006917 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006918 pci_map_single(sp->pdev, (*skb)->data,
6919 dev->mtu + 4,
6920 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006921 if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006922 goto memalloc_failed;
Veena Parat6d517a22007-07-23 02:20:51 -04006923 rxdp3->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006924 pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
6925 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006926 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006927 rxdp3->Buffer0_ptr)) {
6928 pci_unmap_single(sp->pdev,
6929 (dma_addr_t)rxdp3->Buffer2_ptr,
6930 dev->mtu + 4,
6931 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006932 goto memalloc_failed;
6933 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006934 rxdp->Host_Control = (unsigned long) (*skb);
6935
6936 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04006937 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006938 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Joe Perchesd44570e2009-08-24 17:29:44 +00006939 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006940 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006941 rxdp3->Buffer1_ptr)) {
6942 pci_unmap_single(sp->pdev,
6943 (dma_addr_t)rxdp3->Buffer0_ptr,
6944 BUF0_LEN, PCI_DMA_FROMDEVICE);
6945 pci_unmap_single(sp->pdev,
6946 (dma_addr_t)rxdp3->Buffer2_ptr,
6947 dev->mtu + 4,
6948 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006949 goto memalloc_failed;
6950 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006951 }
6952 }
6953 return 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00006954
6955memalloc_failed:
6956 stats->pci_map_fail_cnt++;
6957 stats->mem_freed += (*skb)->truesize;
6958 dev_kfree_skb(*skb);
6959 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006960}
Veena Parat491abf22007-07-23 02:37:14 -04006961
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006962static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
6963 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006964{
6965 struct net_device *dev = sp->dev;
6966 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006967 rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006968 } else if (sp->rxd_mode == RXD_MODE_3B) {
6969 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
6970 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
Joe Perchesd44570e2009-08-24 17:29:44 +00006971 rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006972 }
6973}
6974
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006975static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006976{
6977 int i, j, k, blk_cnt = 0, size;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006978 struct config_param *config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00006979 struct mac_info *mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006980 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006981 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006982 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006983 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006984 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
6985
6986 /* Calculate the size based on ring mode */
6987 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
6988 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
6989 if (sp->rxd_mode == RXD_MODE_1)
6990 size += NET_IP_ALIGN;
6991 else if (sp->rxd_mode == RXD_MODE_3B)
6992 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006993
6994 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00006995 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
6996 struct ring_info *ring = &mac_control->rings[i];
6997
Joe Perchesd44570e2009-08-24 17:29:44 +00006998 blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006999
7000 for (j = 0; j < blk_cnt; j++) {
7001 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007002 rxdp = ring->rx_blocks[j].rxds[k].virt_addr;
7003 if (sp->rxd_mode == RXD_MODE_3B)
Joe Perches13d866a2009-08-24 17:29:41 +00007004 ba = &ring->ba[j][k];
Joe Perchesd44570e2009-08-24 17:29:44 +00007005 if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,
7006 (u64 *)&temp0_64,
7007 (u64 *)&temp1_64,
7008 (u64 *)&temp2_64,
7009 size) == -ENOMEM) {
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05007010 return 0;
7011 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007012
7013 set_rxd_buffer_size(sp, rxdp, size);
7014 wmb();
7015 /* flip the Ownership bit to Hardware */
7016 rxdp->Control_1 |= RXD_OWN_XENA;
7017 }
7018 }
7019 }
7020 return 0;
7021
7022}
7023
Joe Perchesd44570e2009-08-24 17:29:44 +00007024static int s2io_add_isr(struct s2io_nic *sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007025{
7026 int ret = 0;
7027 struct net_device *dev = sp->dev;
7028 int err = 0;
7029
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007030 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007031 ret = s2io_enable_msi_x(sp);
7032 if (ret) {
7033 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007034 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007035 }
7036
Joe Perchesd44570e2009-08-24 17:29:44 +00007037 /*
7038 * Store the values of the MSIX table in
7039 * the struct s2io_nic structure
7040 */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007041 store_xmsi_data(sp);
7042
7043 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007044 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007045 int i, msix_rx_cnt = 0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007046
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007047 for (i = 0; i < sp->num_entries; i++) {
7048 if (sp->s2io_entries[i].in_use == MSIX_FLG) {
7049 if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007050 MSIX_RING_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007051 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
7052 dev->name, i);
7053 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007054 s2io_msix_ring_handle,
7055 0,
7056 sp->desc[i],
7057 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007058 } else if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007059 MSIX_ALARM_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007060 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
Joe Perchesd44570e2009-08-24 17:29:44 +00007061 dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007062 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007063 s2io_msix_fifo_handle,
7064 0,
7065 sp->desc[i],
7066 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007067
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007068 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007069 /* if either data or addr is zero print it. */
7070 if (!(sp->msix_info[i].addr &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007071 sp->msix_info[i].data)) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007072 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007073 "%s @Addr:0x%llx Data:0x%llx\n",
7074 sp->desc[i],
7075 (unsigned long long)
7076 sp->msix_info[i].addr,
7077 (unsigned long long)
7078 ntohl(sp->msix_info[i].data));
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007079 } else
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007080 msix_rx_cnt++;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007081 if (err) {
7082 remove_msix_isr(sp);
7083
7084 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007085 "%s:MSI-X-%d registration "
7086 "failed\n", dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007087
7088 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007089 "%s: Defaulting to INTA\n",
7090 dev->name);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007091 sp->config.intr_type = INTA;
7092 break;
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007093 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007094 sp->s2io_entries[i].in_use =
7095 MSIX_REGISTERED_SUCCESS;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007096 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007097 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007098 if (!err) {
Joe Perches6cef2b82009-08-24 17:29:45 +00007099 pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt);
Joe Perches9e39f7c2009-08-25 08:52:00 +00007100 DBG_PRINT(INFO_DBG,
7101 "MSI-X-TX entries enabled through alarm vector\n");
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007102 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007103 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007104 if (sp->config.intr_type == INTA) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007105 err = request_irq((int)sp->pdev->irq, s2io_isr, IRQF_SHARED,
7106 sp->name, dev);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007107 if (err) {
7108 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
7109 dev->name);
7110 return -1;
7111 }
7112 }
7113 return 0;
7114}
Joe Perchesd44570e2009-08-24 17:29:44 +00007115
7116static void s2io_rem_isr(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007117{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007118 if (sp->config.intr_type == MSI_X)
7119 remove_msix_isr(sp);
7120 else
7121 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007122}
7123
Joe Perchesd44570e2009-08-24 17:29:44 +00007124static void do_s2io_card_down(struct s2io_nic *sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007125{
7126 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007127 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007128 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007129 struct config_param *config;
7130 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007131
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007132 if (!is_s2io_card_up(sp))
7133 return;
7134
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007135 del_timer_sync(&sp->alarm_timer);
7136 /* If s2io_set_link task is executing, wait till it completes. */
Joe Perchesd44570e2009-08-24 17:29:44 +00007137 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state)))
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007138 msleep(50);
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007139 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007140
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007141 /* Disable napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007142 if (sp->config.napi) {
7143 int off = 0;
7144 if (config->intr_type == MSI_X) {
7145 for (; off < sp->config.rx_ring_num; off++)
7146 napi_disable(&sp->mac_control.rings[off].napi);
Joe Perchesd44570e2009-08-24 17:29:44 +00007147 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007148 else
7149 napi_disable(&sp->napi);
7150 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007151
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007152 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007153 if (do_io)
7154 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007155
7156 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007157
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007158 /* stop the tx queue, indicate link down */
7159 s2io_link(sp, LINK_DOWN);
7160
Linus Torvalds1da177e2005-04-16 15:20:36 -07007161 /* Check if the device is Quiescent and then Reset the NIC */
Joe Perchesd44570e2009-08-24 17:29:44 +00007162 while (do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007163 /* As per the HW requirement we need to replenish the
7164 * receive buffer to avoid the ring bump. Since there is
7165 * no intention of processing the Rx frame at this pointwe are
Justin P. Mattock70f23fd2011-05-10 10:16:21 +02007166 * just setting the ownership bit of rxd in Each Rx
Ananda Raju5d3213c2006-04-21 19:23:26 -04007167 * ring to HW and set the appropriate buffer size
7168 * based on the ring mode
7169 */
7170 rxd_owner_bit_reset(sp);
7171
Linus Torvalds1da177e2005-04-16 15:20:36 -07007172 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007173 if (verify_xena_quiescence(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007174 if (verify_pcc_quiescent(sp, sp->device_enabled_once))
7175 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007176 }
7177
7178 msleep(50);
7179 cnt++;
7180 if (cnt == 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007181 DBG_PRINT(ERR_DBG, "Device not Quiescent - "
7182 "adapter status reads 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007183 (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007184 break;
7185 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007186 }
7187 if (do_io)
7188 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007189
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007190 /* Free all Tx buffers */
7191 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007192
7193 /* Free all Rx buffers */
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007194 free_rx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007195
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007196 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007197}
7198
Joe Perchesd44570e2009-08-24 17:29:44 +00007199static void s2io_card_down(struct s2io_nic *sp)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007200{
7201 do_s2io_card_down(sp, 1);
7202}
7203
Joe Perchesd44570e2009-08-24 17:29:44 +00007204static int s2io_card_up(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007205{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007206 int i, ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007207 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007208 struct mac_info *mac_control;
Joe Perchesd44570e2009-08-24 17:29:44 +00007209 struct net_device *dev = (struct net_device *)sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007210 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007211
7212 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007213 ret = init_nic(sp);
7214 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007215 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7216 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007217 if (ret != -EIO)
7218 s2io_reset(sp);
7219 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007220 }
7221
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007222 /*
7223 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007224 * Rx ring and initializing buffers into 30 Rx blocks
7225 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007226 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007227 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007228
7229 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007230 struct ring_info *ring = &mac_control->rings[i];
7231
7232 ring->mtu = dev->mtu;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007233 ring->lro = !!(dev->features & NETIF_F_LRO);
Joe Perches13d866a2009-08-24 17:29:41 +00007234 ret = fill_rx_buffers(sp, ring, 1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007235 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007236 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7237 dev->name);
7238 s2io_reset(sp);
7239 free_rx_buffers(sp);
7240 return -ENOMEM;
7241 }
7242 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
Joe Perches13d866a2009-08-24 17:29:41 +00007243 ring->rx_bufs_left);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007244 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007245
7246 /* Initialise napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007247 if (config->napi) {
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007248 if (config->intr_type == MSI_X) {
7249 for (i = 0; i < sp->config.rx_ring_num; i++)
7250 napi_enable(&sp->mac_control.rings[i].napi);
7251 } else {
7252 napi_enable(&sp->napi);
7253 }
7254 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007255
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007256 /* Maintain the state prior to the open */
7257 if (sp->promisc_flg)
7258 sp->promisc_flg = 0;
7259 if (sp->m_cast_flg) {
7260 sp->m_cast_flg = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007261 sp->all_multi_pos = 0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007262 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007263
7264 /* Setting its receive mode */
7265 s2io_set_multicast(dev);
7266
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007267 if (dev->features & NETIF_F_LRO) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007268 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007269 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
Joe Perchesd44570e2009-08-24 17:29:44 +00007270 /* Check if we can use (if specified) user provided value */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007271 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7272 sp->lro_max_aggr_per_sess = lro_max_pkts;
7273 }
7274
Linus Torvalds1da177e2005-04-16 15:20:36 -07007275 /* Enable Rx Traffic and interrupts on the NIC */
7276 if (start_nic(sp)) {
7277 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007278 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007279 free_rx_buffers(sp);
7280 return -ENODEV;
7281 }
7282
7283 /* Add interrupt service routine */
7284 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007285 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007286 s2io_rem_isr(sp);
7287 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007288 free_rx_buffers(sp);
7289 return -ENODEV;
7290 }
7291
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007292 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7293
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007294 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
7295
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007296 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007297 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007298 if (sp->config.intr_type != INTA) {
7299 interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
7300 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7301 } else {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007302 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007303 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007304 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7305 }
7306
Linus Torvalds1da177e2005-04-16 15:20:36 -07007307 return 0;
7308}
7309
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007310/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007311 * s2io_restart_nic - Resets the NIC.
7312 * @data : long pointer to the device private structure
7313 * Description:
7314 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007315 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007316 * the run time of the watch dog routine which is run holding a
7317 * spin lock.
7318 */
7319
David Howellsc4028952006-11-22 14:57:56 +00007320static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007321{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007322 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007323 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007324
Francois Romieu22747d62007-02-15 23:37:50 +01007325 rtnl_lock();
7326
7327 if (!netif_running(dev))
7328 goto out_unlock;
7329
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007330 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007331 if (s2io_card_up(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007332 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007333 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007334 s2io_wake_all_tx_queue(sp);
Joe Perchesd44570e2009-08-24 17:29:44 +00007335 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007336out_unlock:
7337 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007338}
7339
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007340/**
7341 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007342 * @dev : Pointer to net device structure
7343 * Description:
7344 * This function is triggered if the Tx Queue is stopped
7345 * for a pre-defined amount of time when the Interface is still up.
7346 * If the Interface is jammed in such a situation, the hardware is
7347 * reset (by s2io_close) and restarted again (by s2io_open) to
7348 * overcome any problem that might have been caused in the hardware.
7349 * Return value:
7350 * void
7351 */
7352
7353static void s2io_tx_watchdog(struct net_device *dev)
7354{
Wang Chen4cf16532008-11-12 23:38:14 -08007355 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007356 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007357
7358 if (netif_carrier_ok(dev)) {
Joe Perchesffb5df62009-08-24 17:29:47 +00007359 swstats->watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007360 schedule_work(&sp->rst_timer_task);
Joe Perchesffb5df62009-08-24 17:29:47 +00007361 swstats->soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007362 }
7363}
7364
7365/**
7366 * rx_osm_handler - To perform some OS related operations on SKB.
7367 * @sp: private member of the device structure,pointer to s2io_nic structure.
7368 * @skb : the socket buffer pointer.
7369 * @len : length of the packet
7370 * @cksum : FCS checksum of the frame.
7371 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007372 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007373 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007374 * some OS related operations on the SKB before passing it to the upper
7375 * layers. It mainly checks if the checksum is OK, if so adds it to the
7376 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7377 * to the upper layer. If the checksum is wrong, it increments the Rx
7378 * packet error count, frees the SKB and returns error.
7379 * Return value:
7380 * SUCCESS on success and -1 on failure.
7381 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007382static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007383{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007384 struct s2io_nic *sp = ring_data->nic;
Joe Perchesd44570e2009-08-24 17:29:44 +00007385 struct net_device *dev = (struct net_device *)ring_data->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007386 struct sk_buff *skb = (struct sk_buff *)
Joe Perchesd44570e2009-08-24 17:29:44 +00007387 ((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007388 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007389 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007390 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ingo Molnar2e6a6842008-11-25 16:47:35 -08007391 struct lro *uninitialized_var(lro);
Olaf Heringf9046eb2007-06-19 22:41:10 +02007392 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00007393 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007394
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007395 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007396
Ananda Raju863c11a2006-04-21 19:03:13 -04007397 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007398 /* Check for parity error */
Joe Perchesd44570e2009-08-24 17:29:44 +00007399 if (err & 0x1)
Joe Perchesffb5df62009-08-24 17:29:47 +00007400 swstats->parity_err_cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007401
Olaf Heringf9046eb2007-06-19 22:41:10 +02007402 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00007403 switch (err_mask) {
7404 case 1:
Joe Perchesffb5df62009-08-24 17:29:47 +00007405 swstats->rx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007406 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007407
Joe Perchesd44570e2009-08-24 17:29:44 +00007408 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00007409 swstats->rx_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007410 break;
7411
Joe Perchesd44570e2009-08-24 17:29:44 +00007412 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00007413 swstats->rx_parity_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007414 break;
7415
Joe Perchesd44570e2009-08-24 17:29:44 +00007416 case 4:
Joe Perchesffb5df62009-08-24 17:29:47 +00007417 swstats->rx_rda_fail_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007418 break;
7419
Joe Perchesd44570e2009-08-24 17:29:44 +00007420 case 5:
Joe Perchesffb5df62009-08-24 17:29:47 +00007421 swstats->rx_unkn_prot_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007422 break;
7423
Joe Perchesd44570e2009-08-24 17:29:44 +00007424 case 6:
Joe Perchesffb5df62009-08-24 17:29:47 +00007425 swstats->rx_fcs_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007426 break;
7427
Joe Perchesd44570e2009-08-24 17:29:44 +00007428 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00007429 swstats->rx_buf_size_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007430 break;
7431
Joe Perchesd44570e2009-08-24 17:29:44 +00007432 case 8:
Joe Perchesffb5df62009-08-24 17:29:47 +00007433 swstats->rx_rxd_corrupt_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007434 break;
7435
Joe Perchesd44570e2009-08-24 17:29:44 +00007436 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00007437 swstats->rx_unkn_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007438 break;
7439 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007440 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00007441 * Drop the packet if bad transfer code. Exception being
7442 * 0x5, which could be due to unsupported IPv6 extension header.
7443 * In this case, we let stack handle the packet.
7444 * Note that in this case, since checksum will be incorrect,
7445 * stack will validate the same.
7446 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007447 if (err_mask != 0x5) {
7448 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007449 dev->name, err_mask);
Breno Leitaodc56e632008-07-22 16:27:20 -03007450 dev->stats.rx_crc_errors++;
Joe Perchesffb5df62009-08-24 17:29:47 +00007451 swstats->mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007452 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007453 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007454 ring_data->rx_bufs_left -= 1;
Ananda Raju863c11a2006-04-21 19:03:13 -04007455 rxdp->Host_Control = 0;
7456 return 0;
7457 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007458 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007459
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007460 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007461 if (sp->rxd_mode == RXD_MODE_1) {
7462 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007463
Ananda Rajuda6971d2005-10-31 16:55:31 -05007464 skb_put(skb, len);
Veena Parat6d517a22007-07-23 02:20:51 -04007465 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007466 int get_block = ring_data->rx_curr_get_info.block_index;
7467 int get_off = ring_data->rx_curr_get_info.offset;
7468 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7469 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7470 unsigned char *buff = skb_push(skb, buf0_len);
7471
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007472 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05007473 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007474 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007475 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007476
Joe Perchesd44570e2009-08-24 17:29:44 +00007477 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
7478 ((!ring_data->lro) ||
7479 (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007480 (dev->features & NETIF_F_RXCSUM)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007481 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7482 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7483 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7484 /*
7485 * NIC verifies if the Checksum of the received
7486 * frame is Ok or not and accordingly returns
7487 * a flag in the RxD.
7488 */
7489 skb->ip_summed = CHECKSUM_UNNECESSARY;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007490 if (ring_data->lro) {
Shan Wei06f0c132011-03-04 01:23:58 +00007491 u32 tcp_len = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007492 u8 *tcp;
7493 int ret = 0;
7494
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007495 ret = s2io_club_tcp_session(ring_data,
Joe Perchesd44570e2009-08-24 17:29:44 +00007496 skb->data, &tcp,
7497 &tcp_len, &lro,
7498 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007499 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007500 case 3: /* Begin anew */
7501 lro->parent = skb;
7502 goto aggregate;
7503 case 1: /* Aggregate */
7504 lro_append_pkt(sp, lro, skb, tcp_len);
7505 goto aggregate;
7506 case 4: /* Flush session */
7507 lro_append_pkt(sp, lro, skb, tcp_len);
7508 queue_rx_frame(lro->parent,
7509 lro->vlan_tag);
7510 clear_lro_session(lro);
Joe Perchesffb5df62009-08-24 17:29:47 +00007511 swstats->flush_max_pkts++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007512 goto aggregate;
7513 case 2: /* Flush both */
7514 lro->parent->data_len = lro->frags_len;
Joe Perchesffb5df62009-08-24 17:29:47 +00007515 swstats->sending_both++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007516 queue_rx_frame(lro->parent,
7517 lro->vlan_tag);
7518 clear_lro_session(lro);
7519 goto send_up;
7520 case 0: /* sessions exceeded */
7521 case -1: /* non-TCP or not L2 aggregatable */
7522 case 5: /*
7523 * First pkt in session not
7524 * L3/L4 aggregatable
7525 */
7526 break;
7527 default:
7528 DBG_PRINT(ERR_DBG,
7529 "%s: Samadhana!!\n",
7530 __func__);
7531 BUG();
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007532 }
7533 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007534 } else {
7535 /*
7536 * Packet with erroneous checksum, let the
7537 * upper layers deal with it.
7538 */
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007539 skb_checksum_none_assert(skb);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007540 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007541 } else
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007542 skb_checksum_none_assert(skb);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007543
Joe Perchesffb5df62009-08-24 17:29:47 +00007544 swstats->mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007545send_up:
David S. Miller0c8dfc82009-01-27 16:22:32 -08007546 skb_record_rx_queue(skb, ring_no);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007547 queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007548aggregate:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007549 sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007550 return SUCCESS;
7551}
7552
7553/**
7554 * s2io_link - stops/starts the Tx queue.
7555 * @sp : private member of the device structure, which is a pointer to the
7556 * s2io_nic structure.
7557 * @link : inidicates whether link is UP/DOWN.
7558 * Description:
7559 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007560 * status of the NIC is is down or up. This is called by the Alarm
7561 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007562 * Return value:
7563 * void.
7564 */
7565
Joe Perchesd44570e2009-08-24 17:29:44 +00007566static void s2io_link(struct s2io_nic *sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007567{
Joe Perchesd44570e2009-08-24 17:29:44 +00007568 struct net_device *dev = (struct net_device *)sp->dev;
Joe Perchesffb5df62009-08-24 17:29:47 +00007569 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007570
7571 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007572 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007573 if (link == LINK_DOWN) {
7574 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007575 s2io_stop_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007576 netif_carrier_off(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007577 if (swstats->link_up_cnt)
7578 swstats->link_up_time =
7579 jiffies - sp->start_time;
7580 swstats->link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007581 } else {
7582 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Joe Perchesffb5df62009-08-24 17:29:47 +00007583 if (swstats->link_down_cnt)
7584 swstats->link_down_time =
Joe Perchesd44570e2009-08-24 17:29:44 +00007585 jiffies - sp->start_time;
Joe Perchesffb5df62009-08-24 17:29:47 +00007586 swstats->link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007587 netif_carrier_on(dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007588 s2io_wake_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007589 }
7590 }
7591 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007592 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007593}
7594
7595/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007596 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7597 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007598 * s2io_nic structure.
7599 * Description:
7600 * This function initializes a few of the PCI and PCI-X configuration registers
7601 * with recommended values.
7602 * Return value:
7603 * void
7604 */
7605
Joe Perchesd44570e2009-08-24 17:29:44 +00007606static void s2io_init_pci(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007607{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007608 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007609
7610 /* Enable Data Parity Error Recovery in PCI-X command register. */
7611 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007612 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007613 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007614 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007615 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007616 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007617
7618 /* Set the PErr Response bit in PCI command register. */
7619 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7620 pci_write_config_word(sp->pdev, PCI_COMMAND,
7621 (pci_cmd | PCI_COMMAND_PARITY));
7622 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007623}
7624
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007625static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type,
Joe Perchesd44570e2009-08-24 17:29:44 +00007626 u8 *dev_multiq)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007627{
Jon Mason1853e2e2010-12-10 15:40:01 +00007628 int i;
7629
Joe Perchesd44570e2009-08-24 17:29:44 +00007630 if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007631 DBG_PRINT(ERR_DBG, "Requested number of tx fifos "
Joe Perchesd44570e2009-08-24 17:29:44 +00007632 "(%d) not supported\n", tx_fifo_num);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007633
7634 if (tx_fifo_num < 1)
7635 tx_fifo_num = 1;
7636 else
7637 tx_fifo_num = MAX_TX_FIFOS;
7638
Joe Perches9e39f7c2009-08-25 08:52:00 +00007639 DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007640 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007641
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007642 if (multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007643 *dev_multiq = multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007644
7645 if (tx_steering_type && (1 == tx_fifo_num)) {
7646 if (tx_steering_type != TX_DEFAULT_STEERING)
7647 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007648 "Tx steering is not supported with "
Joe Perchesd44570e2009-08-24 17:29:44 +00007649 "one fifo. Disabling Tx steering.\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007650 tx_steering_type = NO_STEERING;
7651 }
7652
7653 if ((tx_steering_type < NO_STEERING) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007654 (tx_steering_type > TX_DEFAULT_STEERING)) {
7655 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007656 "Requested transmit steering not supported\n");
7657 DBG_PRINT(ERR_DBG, "Disabling transmit steering\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007658 tx_steering_type = NO_STEERING;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007659 }
7660
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007661 if (rx_ring_num > MAX_RX_RINGS) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007662 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007663 "Requested number of rx rings not supported\n");
7664 DBG_PRINT(ERR_DBG, "Default to %d rx rings\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007665 MAX_RX_RINGS);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007666 rx_ring_num = MAX_RX_RINGS;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007667 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007668
Veena Parateccb8622007-07-23 02:23:54 -04007669 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007670 DBG_PRINT(ERR_DBG, "Wrong intr_type requested. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007671 "Defaulting to INTA\n");
7672 *dev_intr_type = INTA;
7673 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007674
Ananda Raju9dc737a2006-04-21 19:05:41 -04007675 if ((*dev_intr_type == MSI_X) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007676 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7677 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007678 DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. "
Joe Perchesd44570e2009-08-24 17:29:44 +00007679 "Defaulting to INTA\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007680 *dev_intr_type = INTA;
7681 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007682
Veena Parat6d517a22007-07-23 02:20:51 -04007683 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007684 DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n");
7685 DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007686 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007687 }
Jon Mason1853e2e2010-12-10 15:40:01 +00007688
7689 for (i = 0; i < MAX_RX_RINGS; i++)
7690 if (rx_ring_sz[i] > MAX_RX_BLOCKS_PER_RING) {
7691 DBG_PRINT(ERR_DBG, "Requested rx ring size not "
7692 "supported\nDefaulting to %d\n",
7693 MAX_RX_BLOCKS_PER_RING);
7694 rx_ring_sz[i] = MAX_RX_BLOCKS_PER_RING;
7695 }
7696
Ananda Raju9dc737a2006-04-21 19:05:41 -04007697 return SUCCESS;
7698}
7699
Linus Torvalds1da177e2005-04-16 15:20:36 -07007700/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007701 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7702 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007703 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007704 * Description: The function configures the receive steering to
7705 * desired receive ring.
7706 * Return Value: SUCCESS on success and
7707 * '-1' on failure (endian settings incorrect).
7708 */
7709static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7710{
7711 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7712 register u64 val64 = 0;
7713
7714 if (ds_codepoint > 63)
7715 return FAILURE;
7716
7717 val64 = RTS_DS_MEM_DATA(ring);
7718 writeq(val64, &bar0->rts_ds_mem_data);
7719
7720 val64 = RTS_DS_MEM_CTRL_WE |
7721 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7722 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7723
7724 writeq(val64, &bar0->rts_ds_mem_ctrl);
7725
7726 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
Joe Perchesd44570e2009-08-24 17:29:44 +00007727 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7728 S2IO_BIT_RESET);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007729}
7730
Stephen Hemminger04025092008-11-21 17:28:55 -08007731static const struct net_device_ops s2io_netdev_ops = {
7732 .ndo_open = s2io_open,
7733 .ndo_stop = s2io_close,
7734 .ndo_get_stats = s2io_get_stats,
7735 .ndo_start_xmit = s2io_xmit,
7736 .ndo_validate_addr = eth_validate_addr,
7737 .ndo_set_multicast_list = s2io_set_multicast,
7738 .ndo_do_ioctl = s2io_ioctl,
7739 .ndo_set_mac_address = s2io_set_mac_addr,
7740 .ndo_change_mtu = s2io_change_mtu,
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007741 .ndo_set_features = s2io_set_features,
Stephen Hemminger04025092008-11-21 17:28:55 -08007742 .ndo_vlan_rx_register = s2io_vlan_rx_register,
7743 .ndo_vlan_rx_kill_vid = s2io_vlan_rx_kill_vid,
7744 .ndo_tx_timeout = s2io_tx_watchdog,
7745#ifdef CONFIG_NET_POLL_CONTROLLER
7746 .ndo_poll_controller = s2io_netpoll,
7747#endif
7748};
7749
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007750/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007751 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007752 * @pdev : structure containing the PCI related information of the device.
7753 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7754 * Description:
7755 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007756 * All OS related initialization including memory and device structure and
7757 * initlaization of the device private variable is done. Also the swapper
7758 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007759 * registers of the device.
7760 * Return value:
7761 * returns 0 on success and negative on failure.
7762 */
7763
7764static int __devinit
7765s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7766{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007767 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007768 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007769 int i, j, ret;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007770 int dma_flag = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007771 u32 mac_up, mac_down;
7772 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007773 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007774 u16 subid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007775 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007776 struct mac_info *mac_control;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007777 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007778 u8 dev_intr_type = intr_type;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007779 u8 dev_multiq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007780
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007781 ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq);
7782 if (ret)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007783 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007784
Joe Perchesd44570e2009-08-24 17:29:44 +00007785 ret = pci_enable_device(pdev);
7786 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007787 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007788 "%s: pci_enable_device failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007789 return ret;
7790 }
7791
Yang Hongyang6a355282009-04-06 19:01:13 -07007792 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007793 DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007794 dma_flag = true;
Joe Perchesd44570e2009-08-24 17:29:44 +00007795 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007796 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007797 "Unable to obtain 64bit DMA "
7798 "for consistent allocations\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07007799 pci_disable_device(pdev);
7800 return -ENOMEM;
7801 }
Yang Hongyang284901a2009-04-06 19:01:15 -07007802 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007803 DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007804 } else {
7805 pci_disable_device(pdev);
7806 return -ENOMEM;
7807 }
Joe Perchesd44570e2009-08-24 17:29:44 +00007808 ret = pci_request_regions(pdev, s2io_driver_name);
7809 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007810 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007811 __func__, ret);
Veena Parateccb8622007-07-23 02:23:54 -04007812 pci_disable_device(pdev);
7813 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007814 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007815 if (dev_multiq)
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007816 dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007817 else
David S. Millerb19fa1f2008-07-08 23:14:24 -07007818 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007819 if (dev == NULL) {
7820 DBG_PRINT(ERR_DBG, "Device allocation failed\n");
7821 pci_disable_device(pdev);
7822 pci_release_regions(pdev);
7823 return -ENODEV;
7824 }
7825
7826 pci_set_master(pdev);
7827 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007828 SET_NETDEV_DEV(dev, &pdev->dev);
7829
7830 /* Private member variable initialized to s2io NIC structure */
Wang Chen4cf16532008-11-12 23:38:14 -08007831 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007832 sp->dev = dev;
7833 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007834 sp->high_dma_flag = dma_flag;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007835 sp->device_enabled_once = false;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007836 if (rx_ring_mode == 1)
7837 sp->rxd_mode = RXD_MODE_1;
7838 if (rx_ring_mode == 2)
7839 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007840
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007841 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007842
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007843 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007844 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007845 sp->device_type = XFRAME_II_DEVICE;
7846 else
7847 sp->device_type = XFRAME_I_DEVICE;
7848
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007849
Linus Torvalds1da177e2005-04-16 15:20:36 -07007850 /* Initialize some PCI/PCI-X fields of the NIC. */
7851 s2io_init_pci(sp);
7852
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007853 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007854 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007855 * Most of these parameters can be specified by the user during
7856 * module insertion as they are module loadable parameters. If
7857 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007858 * are initialized with default values.
7859 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007860 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007861 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007862
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007863 config->napi = napi;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007864 config->tx_steering_type = tx_steering_type;
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007865
Linus Torvalds1da177e2005-04-16 15:20:36 -07007866 /* Tx side parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007867 if (config->tx_steering_type == TX_PRIORITY_STEERING)
7868 config->tx_fifo_num = MAX_TX_FIFOS;
7869 else
7870 config->tx_fifo_num = tx_fifo_num;
7871
7872 /* Initialize the fifos used for tx steering */
7873 if (config->tx_fifo_num < 5) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007874 if (config->tx_fifo_num == 1)
7875 sp->total_tcp_fifos = 1;
7876 else
7877 sp->total_tcp_fifos = config->tx_fifo_num - 1;
7878 sp->udp_fifo_idx = config->tx_fifo_num - 1;
7879 sp->total_udp_fifos = 1;
7880 sp->other_fifo_idx = sp->total_tcp_fifos - 1;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007881 } else {
7882 sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM -
Joe Perchesd44570e2009-08-24 17:29:44 +00007883 FIFO_OTHER_MAX_NUM);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007884 sp->udp_fifo_idx = sp->total_tcp_fifos;
7885 sp->total_udp_fifos = FIFO_UDP_MAX_NUM;
7886 sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM;
7887 }
7888
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007889 config->multiq = dev_multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007890 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007891 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7892
7893 tx_cfg->fifo_len = tx_fifo_len[i];
7894 tx_cfg->fifo_priority = i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007895 }
7896
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007897 /* mapping the QoS priority to the configured fifos */
7898 for (i = 0; i < MAX_TX_FIFOS; i++)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007899 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007900
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007901 /* map the hashing selector table to the configured fifos */
7902 for (i = 0; i < config->tx_fifo_num; i++)
7903 sp->fifo_selector[i] = fifo_selector[i];
7904
7905
Linus Torvalds1da177e2005-04-16 15:20:36 -07007906 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7907 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007908 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7909
7910 tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7911 if (tx_cfg->fifo_len < 65) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007912 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7913 break;
7914 }
7915 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007916 /* + 2 because one Txd for skb->data and one Txd for UFO */
7917 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007918
7919 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007920 config->rx_ring_num = rx_ring_num;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007921 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007922 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7923 struct ring_info *ring = &mac_control->rings[i];
7924
7925 rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1);
7926 rx_cfg->ring_priority = i;
7927 ring->rx_bufs_left = 0;
7928 ring->rxd_mode = sp->rxd_mode;
7929 ring->rxd_count = rxd_count[sp->rxd_mode];
7930 ring->pdev = sp->pdev;
7931 ring->dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007932 }
7933
7934 for (i = 0; i < rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007935 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7936
7937 rx_cfg->ring_org = RING_ORG_BUFF1;
7938 rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007939 }
7940
7941 /* Setting Mac Control parameters */
7942 mac_control->rmac_pause_time = rmac_pause_time;
7943 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
7944 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
7945
7946
Linus Torvalds1da177e2005-04-16 15:20:36 -07007947 /* initialize the shared memory used by the NIC and the host */
7948 if (init_shared_mem(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007949 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007950 ret = -ENOMEM;
7951 goto mem_alloc_failed;
7952 }
7953
Arjan van de Ven275f1652008-10-20 21:42:39 -07007954 sp->bar0 = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007955 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007956 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007957 dev->name);
7958 ret = -ENOMEM;
7959 goto bar0_remap_failed;
7960 }
7961
Arjan van de Ven275f1652008-10-20 21:42:39 -07007962 sp->bar1 = pci_ioremap_bar(pdev, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007963 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007964 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007965 dev->name);
7966 ret = -ENOMEM;
7967 goto bar1_remap_failed;
7968 }
7969
7970 dev->irq = pdev->irq;
Joe Perchesd44570e2009-08-24 17:29:44 +00007971 dev->base_addr = (unsigned long)sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007972
7973 /* Initializing the BAR1 address as the start of the FIFO pointer. */
7974 for (j = 0; j < MAX_TX_FIFOS; j++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007975 mac_control->tx_FIFO_start[j] =
7976 (struct TxFIFO_element __iomem *)
7977 (sp->bar1 + (j * 0x00020000));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007978 }
7979
7980 /* Driver entry points */
Stephen Hemminger04025092008-11-21 17:28:55 -08007981 dev->netdev_ops = &s2io_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007982 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007983 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
7984 NETIF_F_TSO | NETIF_F_TSO6 |
7985 NETIF_F_RXCSUM | NETIF_F_LRO;
7986 dev->features |= dev->hw_features |
7987 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
7988 if (sp->device_type & XFRAME_II_DEVICE) {
7989 dev->hw_features |= NETIF_F_UFO;
7990 if (ufo)
7991 dev->features |= NETIF_F_UFO;
7992 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007993 if (sp->high_dma_flag == true)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007994 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007995 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00007996 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
7997 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007998
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07007999 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008000
8001 /* Setting swapper control on the NIC, for proper reset operation */
8002 if (s2io_set_swapper(sp)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008003 DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07008004 dev->name);
8005 ret = -EAGAIN;
8006 goto set_swap_failed;
8007 }
8008
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008009 /* Verify if the Herc works on the slot its placed into */
8010 if (sp->device_type & XFRAME_II_DEVICE) {
8011 mode = s2io_verify_pci_mode(sp);
8012 if (mode < 0) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008013 DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n",
8014 __func__);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008015 ret = -EBADSLT;
8016 goto set_swap_failed;
8017 }
8018 }
8019
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008020 if (sp->config.intr_type == MSI_X) {
8021 sp->num_entries = config->rx_ring_num + 1;
8022 ret = s2io_enable_msi_x(sp);
8023
8024 if (!ret) {
8025 ret = s2io_test_msi(sp);
8026 /* rollback MSI-X, will re-enable during add_isr() */
8027 remove_msix_isr(sp);
8028 }
8029 if (ret) {
8030
8031 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00008032 "MSI-X requested but failed to enable\n");
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008033 sp->config.intr_type = INTA;
8034 }
8035 }
8036
8037 if (config->intr_type == MSI_X) {
Joe Perches13d866a2009-08-24 17:29:41 +00008038 for (i = 0; i < config->rx_ring_num ; i++) {
8039 struct ring_info *ring = &mac_control->rings[i];
8040
8041 netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64);
8042 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008043 } else {
8044 netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64);
8045 }
8046
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008047 /* Not needed for Herc */
8048 if (sp->device_type & XFRAME_I_DEVICE) {
8049 /*
8050 * Fix for all "FFs" MAC address problems observed on
8051 * Alpha platforms
8052 */
8053 fix_mac_address(sp);
8054 s2io_reset(sp);
8055 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008056
8057 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07008058 * MAC address initialization.
8059 * For now only one mac address will be read and used.
8060 */
8061 bar0 = sp->bar0;
8062 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Joe Perchesd44570e2009-08-24 17:29:44 +00008063 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008064 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04008065 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00008066 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
8067 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008068 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00008069 mac_down = (u32)tmp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008070 mac_up = (u32) (tmp64 >> 32);
8071
Linus Torvalds1da177e2005-04-16 15:20:36 -07008072 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
8073 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
8074 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
8075 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
8076 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
8077 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
8078
Linus Torvalds1da177e2005-04-16 15:20:36 -07008079 /* Set the factory defined MAC address initially */
8080 dev->addr_len = ETH_ALEN;
8081 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04008082 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008083
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08008084 /* initialize number of multicast & unicast MAC entries variables */
8085 if (sp->device_type == XFRAME_I_DEVICE) {
8086 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
8087 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
8088 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
8089 } else if (sp->device_type == XFRAME_II_DEVICE) {
8090 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
8091 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
8092 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
8093 }
8094
8095 /* store mac addresses from CAM to s2io_nic structure */
8096 do_s2io_store_unicast_mc(sp);
8097
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008098 /* Configure MSIX vector for number of rings configured plus one */
8099 if ((sp->device_type == XFRAME_II_DEVICE) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008100 (config->intr_type == MSI_X))
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008101 sp->num_entries = config->rx_ring_num + 1;
8102
Joe Perchesd44570e2009-08-24 17:29:44 +00008103 /* Store the values of the MSIX table in the s2io_nic structure */
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04008104 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04008105 /* reset Nic and bring it to known state */
8106 s2io_reset(sp);
8107
Linus Torvalds1da177e2005-04-16 15:20:36 -07008108 /*
Sreenivasa Honnur99993af2008-04-23 13:29:42 -04008109 * Initialize link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008110 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07008111 */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04008112 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008113
Linus Torvalds1da177e2005-04-16 15:20:36 -07008114 /* Initialize spinlocks */
Joe Perches13d866a2009-08-24 17:29:41 +00008115 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8116 struct fifo_info *fifo = &mac_control->fifos[i];
8117
8118 spin_lock_init(&fifo->tx_lock);
8119 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008120
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008121 /*
8122 * SXE-002: Configure link and activity LED to init state
8123 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07008124 */
8125 subid = sp->pdev->subsystem_device;
8126 if ((subid & 0xFF) >= 0x07) {
8127 val64 = readq(&bar0->gpio_control);
8128 val64 |= 0x0000800000000000ULL;
8129 writeq(val64, &bar0->gpio_control);
8130 val64 = 0x0411040400000000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00008131 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008132 val64 = readq(&bar0->gpio_control);
8133 }
8134
8135 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
8136
8137 if (register_netdev(dev)) {
8138 DBG_PRINT(ERR_DBG, "Device registration failed\n");
8139 ret = -ENODEV;
8140 goto register_failed;
8141 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04008142 s2io_vpd_read(sp);
Jon Mason926bd902010-07-15 08:47:26 +00008143 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00008144 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07008145 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04008146 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
8147 s2io_driver_version);
Joe Perches9e39f7c2009-08-25 08:52:00 +00008148 DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr);
8149 DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04008150 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07008151 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008152 if (mode < 0) {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008153 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008154 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008155 goto set_swap_failed;
8156 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008157 }
Joe Perchesd44570e2009-08-24 17:29:44 +00008158 switch (sp->rxd_mode) {
8159 case RXD_MODE_1:
8160 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
8161 dev->name);
8162 break;
8163 case RXD_MODE_3B:
8164 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
8165 dev->name);
8166 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008167 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008168
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008169 switch (sp->config.napi) {
8170 case 0:
8171 DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name);
8172 break;
8173 case 1:
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008174 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008175 break;
8176 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008177
8178 DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +00008179 sp->config.tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008180
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008181 DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name,
8182 sp->config.rx_ring_num);
8183
Joe Perchesd44570e2009-08-24 17:29:44 +00008184 switch (sp->config.intr_type) {
8185 case INTA:
8186 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
8187 break;
8188 case MSI_X:
8189 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
8190 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008191 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008192 if (sp->config.multiq) {
Joe Perches13d866a2009-08-24 17:29:41 +00008193 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8194 struct fifo_info *fifo = &mac_control->fifos[i];
8195
8196 fifo->multiq = config->multiq;
8197 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008198 DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008199 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008200 } else
8201 DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008202 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008203
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008204 switch (sp->config.tx_steering_type) {
8205 case NO_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008206 DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n",
8207 dev->name);
8208 break;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008209 case TX_PRIORITY_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008210 DBG_PRINT(ERR_DBG,
8211 "%s: Priority steering enabled for transmit\n",
8212 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008213 break;
8214 case TX_DEFAULT_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008215 DBG_PRINT(ERR_DBG,
8216 "%s: Default steering enabled for transmit\n",
8217 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008218 }
8219
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008220 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
8221 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008222 if (ufo)
Joe Perchesd44570e2009-08-24 17:29:44 +00008223 DBG_PRINT(ERR_DBG,
8224 "%s: UDP Fragmentation Offload(UFO) enabled\n",
8225 dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008226 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04008227 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008228
Breno Leitaocd0fce02008-09-04 17:52:54 -03008229 if (vlan_tag_strip)
8230 sp->vlan_strip_flag = 1;
8231 else
8232 sp->vlan_strip_flag = 0;
8233
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008234 /*
8235 * Make Link state as off at this point, when the Link change
8236 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07008237 * the right state.
8238 */
8239 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008240
8241 return 0;
8242
Joe Perchesd44570e2009-08-24 17:29:44 +00008243register_failed:
8244set_swap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008245 iounmap(sp->bar1);
Joe Perchesd44570e2009-08-24 17:29:44 +00008246bar1_remap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008247 iounmap(sp->bar0);
Joe Perchesd44570e2009-08-24 17:29:44 +00008248bar0_remap_failed:
8249mem_alloc_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008250 free_shared_mem(sp);
8251 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04008252 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008253 pci_set_drvdata(pdev, NULL);
8254 free_netdev(dev);
8255
8256 return ret;
8257}
8258
8259/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008260 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008261 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008262 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008263 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008264 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008265 * from memory.
8266 */
8267
8268static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8269{
Joe Perchesa31ff382010-11-15 10:13:57 +00008270 struct net_device *dev = pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008271 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008272
8273 if (dev == NULL) {
8274 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8275 return;
8276 }
8277
Wang Chen4cf16532008-11-12 23:38:14 -08008278 sp = netdev_priv(dev);
Tejun Heo23f333a2010-12-12 16:45:14 +01008279
8280 cancel_work_sync(&sp->rst_timer_task);
8281 cancel_work_sync(&sp->set_link_task);
8282
Linus Torvalds1da177e2005-04-16 15:20:36 -07008283 unregister_netdev(dev);
8284
8285 free_shared_mem(sp);
8286 iounmap(sp->bar0);
8287 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008288 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008289 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008290 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008291 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008292}
8293
8294/**
8295 * s2io_starter - Entry point for the driver
8296 * Description: This function is the entry point for the driver. It verifies
8297 * the module loadable parameters and initializes PCI configuration space.
8298 */
8299
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008300static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008301{
Jeff Garzik29917622006-08-19 17:48:59 -04008302 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008303}
8304
8305/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008306 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008307 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8308 */
8309
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008310static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008311{
8312 pci_unregister_driver(&s2io_driver);
8313 DBG_PRINT(INIT_DBG, "cleanup done\n");
8314}
8315
8316module_init(s2io_starter);
8317module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008318
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008319static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008320 struct tcphdr **tcp, struct RxD_t *rxdp,
8321 struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008322{
8323 int ip_off;
8324 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8325
8326 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008327 DBG_PRINT(INIT_DBG,
8328 "%s: Non-TCP frames not supported for LRO\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008329 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008330 return -1;
8331 }
8332
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008333 /* Checking for DIX type or DIX type with VLAN */
Joe Perchesd44570e2009-08-24 17:29:44 +00008334 if ((l2_type == 0) || (l2_type == 4)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008335 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8336 /*
8337 * If vlan stripping is disabled and the frame is VLAN tagged,
8338 * shift the offset by the VLAN header size bytes.
8339 */
Breno Leitaocd0fce02008-09-04 17:52:54 -03008340 if ((!sp->vlan_strip_flag) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008341 (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008342 ip_off += HEADER_VLAN_SIZE;
8343 } else {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008344 /* LLC, SNAP etc are considered non-mergeable */
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008345 return -1;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008346 }
8347
8348 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8349 ip_len = (u8)((*ip)->ihl);
8350 ip_len <<= 2;
8351 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8352
8353 return 0;
8354}
8355
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008356static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008357 struct tcphdr *tcp)
8358{
Joe Perchesd44570e2009-08-24 17:29:44 +00008359 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
8360 if ((lro->iph->saddr != ip->saddr) ||
8361 (lro->iph->daddr != ip->daddr) ||
8362 (lro->tcph->source != tcp->source) ||
8363 (lro->tcph->dest != tcp->dest))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008364 return -1;
8365 return 0;
8366}
8367
8368static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8369{
Joe Perchesd44570e2009-08-24 17:29:44 +00008370 return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008371}
8372
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008373static void initiate_new_session(struct lro *lro, u8 *l2h,
Joe Perchesd44570e2009-08-24 17:29:44 +00008374 struct iphdr *ip, struct tcphdr *tcp,
8375 u32 tcp_pyld_len, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008376{
Joe Perchesd44570e2009-08-24 17:29:44 +00008377 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008378 lro->l2h = l2h;
8379 lro->iph = ip;
8380 lro->tcph = tcp;
8381 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008382 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008383 lro->sg_num = 1;
8384 lro->total_len = ntohs(ip->tot_len);
8385 lro->frags_len = 0;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008386 lro->vlan_tag = vlan_tag;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008387 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00008388 * Check if we saw TCP timestamp.
8389 * Other consistency checks have already been done.
8390 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008391 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008392 __be32 *ptr;
8393 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008394 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008395 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008396 lro->cur_tsecr = *(ptr+2);
8397 }
8398 lro->in_use = 1;
8399}
8400
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008401static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008402{
8403 struct iphdr *ip = lro->iph;
8404 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008405 __sum16 nchk;
Joe Perchesffb5df62009-08-24 17:29:47 +00008406 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
8407
Joe Perchesd44570e2009-08-24 17:29:44 +00008408 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008409
8410 /* Update L3 header */
8411 ip->tot_len = htons(lro->total_len);
8412 ip->check = 0;
8413 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8414 ip->check = nchk;
8415
8416 /* Update L4 header */
8417 tcp->ack_seq = lro->tcp_ack;
8418 tcp->window = lro->window;
8419
8420 /* Update tsecr field if this session has timestamps enabled */
8421 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008422 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008423 *(ptr+2) = lro->cur_tsecr;
8424 }
8425
8426 /* Update counters required for calculation of
8427 * average no. of packets aggregated.
8428 */
Joe Perchesffb5df62009-08-24 17:29:47 +00008429 swstats->sum_avg_pkts_aggregated += lro->sg_num;
8430 swstats->num_aggregations++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008431}
8432
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008433static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008434 struct tcphdr *tcp, u32 l4_pyld)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008435{
Joe Perchesd44570e2009-08-24 17:29:44 +00008436 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008437 lro->total_len += l4_pyld;
8438 lro->frags_len += l4_pyld;
8439 lro->tcp_next_seq += l4_pyld;
8440 lro->sg_num++;
8441
8442 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8443 lro->tcp_ack = tcp->ack_seq;
8444 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008445
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008446 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008447 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008448 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008449 ptr = (__be32 *)(tcp+1);
8450 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008451 lro->cur_tsecr = *(ptr + 2);
8452 }
8453}
8454
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008455static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008456 struct tcphdr *tcp, u32 tcp_pyld_len)
8457{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008458 u8 *ptr;
8459
Joe Perchesd44570e2009-08-24 17:29:44 +00008460 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Andrew Morton79dc1902006-02-03 01:45:13 -08008461
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008462 if (!tcp_pyld_len) {
8463 /* Runt frame or a pure ack */
8464 return -1;
8465 }
8466
8467 if (ip->ihl != 5) /* IP has options */
8468 return -1;
8469
Ananda Raju75c30b12006-07-24 19:55:09 -04008470 /* If we see CE codepoint in IP header, packet is not mergeable */
8471 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8472 return -1;
8473
8474 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Joe Perchesd44570e2009-08-24 17:29:44 +00008475 if (tcp->urg || tcp->psh || tcp->rst ||
8476 tcp->syn || tcp->fin ||
8477 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008478 /*
8479 * Currently recognize only the ack control word and
8480 * any other control field being set would result in
8481 * flushing the LRO session
8482 */
8483 return -1;
8484 }
8485
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008486 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008487 * Allow only one TCP timestamp option. Don't aggregate if
8488 * any other options are detected.
8489 */
8490 if (tcp->doff != 5 && tcp->doff != 8)
8491 return -1;
8492
8493 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008494 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008495 while (*ptr == TCPOPT_NOP)
8496 ptr++;
8497 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8498 return -1;
8499
8500 /* Ensure timestamp value increases monotonically */
8501 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008502 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008503 return -1;
8504
8505 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008506 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008507 return -1;
8508 }
8509
8510 return 0;
8511}
8512
Joe Perchesd44570e2009-08-24 17:29:44 +00008513static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
8514 u8 **tcp, u32 *tcp_len, struct lro **lro,
8515 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008516{
8517 struct iphdr *ip;
8518 struct tcphdr *tcph;
8519 int ret = 0, i;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008520 u16 vlan_tag = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00008521 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008522
Joe Perchesd44570e2009-08-24 17:29:44 +00008523 ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8524 rxdp, sp);
8525 if (ret)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008526 return ret;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008527
Joe Perchesd44570e2009-08-24 17:29:44 +00008528 DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);
8529
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008530 vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008531 tcph = (struct tcphdr *)*tcp;
8532 *tcp_len = get_l4_pyld_length(ip, tcph);
Joe Perchesd44570e2009-08-24 17:29:44 +00008533 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008534 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008535 if (l_lro->in_use) {
8536 if (check_for_socket_match(l_lro, ip, tcph))
8537 continue;
8538 /* Sock pair matched */
8539 *lro = l_lro;
8540
8541 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008542 DBG_PRINT(INFO_DBG, "%s: Out of sequence. "
8543 "expected 0x%x, actual 0x%x\n",
8544 __func__,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008545 (*lro)->tcp_next_seq,
8546 ntohl(tcph->seq));
8547
Joe Perchesffb5df62009-08-24 17:29:47 +00008548 swstats->outof_sequence_pkts++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008549 ret = 2;
8550 break;
8551 }
8552
Joe Perchesd44570e2009-08-24 17:29:44 +00008553 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,
8554 *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008555 ret = 1; /* Aggregate */
8556 else
8557 ret = 2; /* Flush both */
8558 break;
8559 }
8560 }
8561
8562 if (ret == 0) {
8563 /* Before searching for available LRO objects,
8564 * check if the pkt is L3/L4 aggregatable. If not
8565 * don't create new LRO session. Just send this
8566 * packet up.
8567 */
Joe Perchesd44570e2009-08-24 17:29:44 +00008568 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008569 return 5;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008570
Joe Perchesd44570e2009-08-24 17:29:44 +00008571 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008572 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008573 if (!(l_lro->in_use)) {
8574 *lro = l_lro;
8575 ret = 3; /* Begin anew */
8576 break;
8577 }
8578 }
8579 }
8580
8581 if (ret == 0) { /* sessions exceeded */
Joe Perches9e39f7c2009-08-25 08:52:00 +00008582 DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008583 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008584 *lro = NULL;
8585 return ret;
8586 }
8587
8588 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008589 case 3:
8590 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
8591 vlan_tag);
8592 break;
8593 case 2:
8594 update_L3L4_header(sp, *lro);
8595 break;
8596 case 1:
8597 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8598 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008599 update_L3L4_header(sp, *lro);
Joe Perchesd44570e2009-08-24 17:29:44 +00008600 ret = 4; /* Flush the LRO */
8601 }
8602 break;
8603 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00008604 DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__);
Joe Perchesd44570e2009-08-24 17:29:44 +00008605 break;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008606 }
8607
8608 return ret;
8609}
8610
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008611static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008612{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008613 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008614
8615 memset(lro, 0, lro_struct_size);
8616}
8617
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008618static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008619{
8620 struct net_device *dev = skb->dev;
Wang Chen4cf16532008-11-12 23:38:14 -08008621 struct s2io_nic *sp = netdev_priv(dev);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008622
8623 skb->protocol = eth_type_trans(skb, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00008624 if (sp->vlgrp && vlan_tag && (sp->vlan_strip_flag)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008625 /* Queueing the vlan frame to the upper layer */
8626 if (sp->config.napi)
8627 vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);
8628 else
8629 vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag);
8630 } else {
8631 if (sp->config.napi)
8632 netif_receive_skb(skb);
8633 else
8634 netif_rx(skb);
8635 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008636}
8637
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008638static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
Joe Perchesd44570e2009-08-24 17:29:44 +00008639 struct sk_buff *skb, u32 tcp_len)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008640{
Ananda Raju75c30b12006-07-24 19:55:09 -04008641 struct sk_buff *first = lro->parent;
Joe Perchesffb5df62009-08-24 17:29:47 +00008642 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008643
8644 first->len += tcp_len;
8645 first->data_len = lro->frags_len;
8646 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008647 if (skb_shinfo(first)->frag_list)
8648 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008649 else
8650 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008651 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008652 lro->last_frag = skb;
Joe Perchesffb5df62009-08-24 17:29:47 +00008653 swstats->clubbed_frms_cnt++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008654}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008655
8656/**
8657 * s2io_io_error_detected - called when PCI error is detected
8658 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008659 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008660 *
8661 * This function is called after a PCI bus error affecting
8662 * this device has been detected.
8663 */
8664static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00008665 pci_channel_state_t state)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008666{
8667 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008668 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008669
8670 netif_device_detach(netdev);
8671
Dean Nelson1e3c8bd2009-07-31 09:13:56 +00008672 if (state == pci_channel_io_perm_failure)
8673 return PCI_ERS_RESULT_DISCONNECT;
8674
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008675 if (netif_running(netdev)) {
8676 /* Bring down the card, while avoiding PCI I/O */
8677 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008678 }
8679 pci_disable_device(pdev);
8680
8681 return PCI_ERS_RESULT_NEED_RESET;
8682}
8683
8684/**
8685 * s2io_io_slot_reset - called after the pci bus has been reset.
8686 * @pdev: Pointer to PCI device
8687 *
8688 * Restart the card from scratch, as if from a cold-boot.
8689 * At this point, the card has exprienced a hard reset,
8690 * followed by fixups by BIOS, and has its config space
8691 * set up identically to what it was at cold boot.
8692 */
8693static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8694{
8695 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008696 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008697
8698 if (pci_enable_device(pdev)) {
Joe Perches6cef2b82009-08-24 17:29:45 +00008699 pr_err("Cannot re-enable PCI device after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008700 return PCI_ERS_RESULT_DISCONNECT;
8701 }
8702
8703 pci_set_master(pdev);
8704 s2io_reset(sp);
8705
8706 return PCI_ERS_RESULT_RECOVERED;
8707}
8708
8709/**
8710 * s2io_io_resume - called when traffic can start flowing again.
8711 * @pdev: Pointer to PCI device
8712 *
8713 * This callback is called when the error recovery driver tells
8714 * us that its OK to resume normal operation.
8715 */
8716static void s2io_io_resume(struct pci_dev *pdev)
8717{
8718 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008719 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008720
8721 if (netif_running(netdev)) {
8722 if (s2io_card_up(sp)) {
Joe Perches6cef2b82009-08-24 17:29:45 +00008723 pr_err("Can't bring device back up after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008724 return;
8725 }
8726
8727 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8728 s2io_card_down(sp);
Joe Perches6cef2b82009-08-24 17:29:45 +00008729 pr_err("Can't restore mac addr after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008730 return;
8731 }
8732 }
8733
8734 netif_device_attach(netdev);
David S. Millerfd2ea0a2008-07-17 01:56:23 -07008735 netif_tx_wake_all_queues(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008736}