blob: 43bc66aa8405c269f4b73b0d17dc369be2574af2 [file] [log] [blame]
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
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08003 * Copyright(c) 2002-2007 Neterion Inc.
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)'
Stephen Hemminger43b7c452007-10-05 12:39:21 -070041 * lro_enable: Specifies whether to enable Large Receive Offload (LRO) or not.
Ananda Raju9dc737a2006-04-21 19:05:41 -040042 * Possible values '1' for enable '0' for disable. Default is '0'
43 * lro_max_pkts: This parameter defines maximum number of packets can be
44 * aggregated as a single large packet
Sivakumar Subramani926930b2007-02-24 01:59:39 -050045 * napi: This parameter used to enable/disable NAPI (polling Rx)
46 * Possible values '1' for enable and '0' for disable. Default is '1'
47 * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO)
48 * Possible values '1' for enable and '0' for disable. Default is '0'
49 * vlan_tag_strip: This can be used to enable or disable vlan stripping.
50 * Possible values '1' for enable , '0' for disable.
51 * Default is '2' - which means disable in promisc mode
52 * and enable in non-promiscuous mode.
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -050053 * multiq: This parameter used to enable/disable MULTIQUEUE support.
54 * Possible values '1' for enable and '0' for disable. Default is '0'
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 ************************************************************************/
56
Joe Perches6cef2b8e2009-08-24 17:29:45 +000057#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059#include <linux/module.h>
60#include <linux/types.h>
61#include <linux/errno.h>
62#include <linux/ioport.h>
63#include <linux/pci.h>
Domen Puncer1e7f0bd2005-06-26 18:22:14 -040064#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070065#include <linux/kernel.h>
66#include <linux/netdevice.h>
67#include <linux/etherdevice.h>
Ben Hutchings40239392009-04-29 08:13:29 +000068#include <linux/mdio.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070069#include <linux/skbuff.h>
70#include <linux/init.h>
71#include <linux/delay.h>
72#include <linux/stddef.h>
73#include <linux/ioctl.h>
74#include <linux/timex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070075#include <linux/ethtool.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070076#include <linux/workqueue.h>
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -070077#include <linux/if_vlan.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050078#include <linux/ip.h>
79#include <linux/tcp.h>
Joe Perchesd44570e2009-08-24 17:29:44 +000080#include <linux/uaccess.h>
81#include <linux/io.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
Sreenivasa Honnur29d0a2b2008-07-09 23:50:13 -040092#define DRV_VERSION "2.0.26.25"
John Linville6c1792f2005-10-04 07:51:45 -040093
Linus Torvalds1da177e2005-04-16 15:20:36 -070094/* S2io Driver name & version. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070095static char s2io_driver_name[] = "Neterion";
John Linville6c1792f2005-10-04 07:51:45 -040096static char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
Joe Perchesd44570e2009-08-24 17:29:44 +000098static int rxd_size[2] = {32, 48};
99static 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 -0700498static unsigned int lro_enable;
499module_param_named(lro, lro_enable, uint, 0);
500
Ananda Rajub41477f2006-07-24 19:52:49 -0400501/* Max pkts to be aggregated by LRO at one time. If not specified,
502 * aggregation happens until we hit max IP pkt size(64K)
503 */
504S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
Ananda Rajub41477f2006-07-24 19:52:49 -0400505S2IO_PARM_INT(indicate_max_pkts, 0);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -0500506
507S2IO_PARM_INT(napi, 1);
508S2IO_PARM_INT(ufo, 0);
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500509S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC);
Ananda Rajub41477f2006-07-24 19:52:49 -0400510
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000512{DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513static unsigned int rx_ring_sz[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000514{[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700515static unsigned int rts_frm_len[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000516{[0 ...(MAX_RX_RINGS - 1)] = 0 };
Ananda Rajub41477f2006-07-24 19:52:49 -0400517
518module_param_array(tx_fifo_len, uint, NULL, 0);
519module_param_array(rx_ring_sz, uint, NULL, 0);
520module_param_array(rts_frm_len, uint, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700522/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 * S2IO device table.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700524 * This table lists all the devices that this driver supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +0000526static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN,
528 PCI_ANY_ID, PCI_ANY_ID},
529 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI,
530 PCI_ANY_ID, PCI_ANY_ID},
531 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN,
Joe Perchesd44570e2009-08-24 17:29:44 +0000532 PCI_ANY_ID, PCI_ANY_ID},
533 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI,
534 PCI_ANY_ID, PCI_ANY_ID},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 {0,}
536};
537
538MODULE_DEVICE_TABLE(pci, s2io_tbl);
539
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500540static struct pci_error_handlers s2io_err_handler = {
541 .error_detected = s2io_io_error_detected,
542 .slot_reset = s2io_io_slot_reset,
543 .resume = s2io_io_resume,
544};
545
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546static struct pci_driver s2io_driver = {
Joe Perchesd44570e2009-08-24 17:29:44 +0000547 .name = "S2IO",
548 .id_table = s2io_tbl,
549 .probe = s2io_init_nic,
550 .remove = __devexit_p(s2io_rem_nic),
551 .err_handler = &s2io_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552};
553
554/* A simplifier macro used both by init and free shared_mem Fns(). */
555#define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
556
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500557/* netqueue manipulation helper functions */
558static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp)
559{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700560 if (!sp->config.multiq) {
561 int i;
562
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500563 for (i = 0; i < sp->config.tx_fifo_num; i++)
564 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500565 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700566 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500567}
568
569static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no)
570{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700571 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500572 sp->mac_control.fifos[fifo_no].queue_state =
573 FIFO_QUEUE_STOP;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700574
575 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500576}
577
578static inline void s2io_start_all_tx_queue(struct s2io_nic *sp)
579{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700580 if (!sp->config.multiq) {
581 int i;
582
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500583 for (i = 0; i < sp->config.tx_fifo_num; i++)
584 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500585 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700586 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500587}
588
589static inline void s2io_start_tx_queue(struct s2io_nic *sp, int fifo_no)
590{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700591 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500592 sp->mac_control.fifos[fifo_no].queue_state =
593 FIFO_QUEUE_START;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700594
595 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500596}
597
598static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp)
599{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700600 if (!sp->config.multiq) {
601 int i;
602
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500603 for (i = 0; i < sp->config.tx_fifo_num; i++)
604 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500605 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700606 netif_tx_wake_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500607}
608
609static inline void s2io_wake_tx_queue(
610 struct fifo_info *fifo, int cnt, u8 multiq)
611{
612
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500613 if (multiq) {
614 if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no))
615 netif_wake_subqueue(fifo->dev, fifo->fifo_no);
David S. Millerb19fa1f2008-07-08 23:14:24 -0700616 } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500617 if (netif_queue_stopped(fifo->dev)) {
618 fifo->queue_state = FIFO_QUEUE_START;
619 netif_wake_queue(fifo->dev);
620 }
621 }
622}
623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624/**
625 * init_shared_mem - Allocation and Initialization of Memory
626 * @nic: Device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700627 * Description: The function allocates all the memory areas shared
628 * between the NIC and the driver. This includes Tx descriptors,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 * Rx descriptors and the statistics block.
630 */
631
632static int init_shared_mem(struct s2io_nic *nic)
633{
634 u32 size;
635 void *tmp_v_addr, *tmp_v_addr_next;
636 dma_addr_t tmp_p_addr, tmp_p_addr_next;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500637 struct RxD_block *pre_rxd_blk = NULL;
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500638 int i, j, blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 int lst_size, lst_per_page;
640 struct net_device *dev = nic->dev;
viro@zenIV.linux.org.uk8ae418c2005-09-02 20:15:29 +0100641 unsigned long tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500642 struct buffAdd *ba;
Joe Perchesffb5df62009-08-24 17:29:47 +0000643 struct config_param *config = &nic->config;
644 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400645 unsigned long long mem_allocated = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646
Joe Perches13d866a2009-08-24 17:29:41 +0000647 /* Allocation and initialization of TXDLs in FIFOs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 size = 0;
649 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000650 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
651
652 size += tx_cfg->fifo_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 }
654 if (size > MAX_AVAILABLE_TXDS) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000655 DBG_PRINT(ERR_DBG,
656 "Too many TxDs requested: %d, max supported: %d\n",
657 size, MAX_AVAILABLE_TXDS);
Ananda Rajub41477f2006-07-24 19:52:49 -0400658 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 }
660
Surjit Reang2fda0962008-01-24 02:08:59 -0800661 size = 0;
662 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000663 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
664
665 size = tx_cfg->fifo_len;
Surjit Reang2fda0962008-01-24 02:08:59 -0800666 /*
667 * Legal values are from 2 to 8192
668 */
669 if (size < 2) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000670 DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - "
671 "Valid lengths are 2 through 8192\n",
672 i, size);
Surjit Reang2fda0962008-01-24 02:08:59 -0800673 return -EINVAL;
674 }
675 }
676
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500677 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 lst_per_page = PAGE_SIZE / lst_size;
679
680 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000681 struct fifo_info *fifo = &mac_control->fifos[i];
682 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
683 int fifo_len = tx_cfg->fifo_len;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500684 int list_holder_size = fifo_len * sizeof(struct list_info_hold);
Joe Perches13d866a2009-08-24 17:29:41 +0000685
686 fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL);
687 if (!fifo->list_info) {
Joe Perchesd44570e2009-08-24 17:29:44 +0000688 DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 return -ENOMEM;
690 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400691 mem_allocated += list_holder_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692 }
693 for (i = 0; i < config->tx_fifo_num; i++) {
694 int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
695 lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000696 struct fifo_info *fifo = &mac_control->fifos[i];
697 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
698
699 fifo->tx_curr_put_info.offset = 0;
700 fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1;
701 fifo->tx_curr_get_info.offset = 0;
702 fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1;
703 fifo->fifo_no = i;
704 fifo->nic = nic;
705 fifo->max_txds = MAX_SKB_FRAGS + 2;
706 fifo->dev = dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700707
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 for (j = 0; j < page_num; j++) {
709 int k = 0;
710 dma_addr_t tmp_p;
711 void *tmp_v;
712 tmp_v = pci_alloc_consistent(nic->pdev,
713 PAGE_SIZE, &tmp_p);
714 if (!tmp_v) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000715 DBG_PRINT(INFO_DBG,
716 "pci_alloc_consistent failed for TxDL\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 return -ENOMEM;
718 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700719 /* If we got a zero DMA address(can happen on
720 * certain platforms like PPC), reallocate.
721 * Store virtual address of page we don't want,
722 * to be freed later.
723 */
724 if (!tmp_p) {
725 mac_control->zerodma_virt_addr = tmp_v;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400726 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000727 "%s: Zero DMA address for TxDL. "
728 "Virtual address %p\n",
729 dev->name, tmp_v);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700730 tmp_v = pci_alloc_consistent(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +0000731 PAGE_SIZE, &tmp_p);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700732 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800733 DBG_PRINT(INFO_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000734 "pci_alloc_consistent failed for TxDL\n");
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700735 return -ENOMEM;
736 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400737 mem_allocated += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700738 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739 while (k < lst_per_page) {
740 int l = (j * lst_per_page) + k;
Joe Perches13d866a2009-08-24 17:29:41 +0000741 if (l == tx_cfg->fifo_len)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700742 break;
Joe Perches13d866a2009-08-24 17:29:41 +0000743 fifo->list_info[l].list_virt_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000744 tmp_v + (k * lst_size);
Joe Perches13d866a2009-08-24 17:29:41 +0000745 fifo->list_info[l].list_phy_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000746 tmp_p + (k * lst_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747 k++;
748 }
749 }
750 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
Surjit Reang2fda0962008-01-24 02:08:59 -0800752 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000753 struct fifo_info *fifo = &mac_control->fifos[i];
754 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
755
756 size = tx_cfg->fifo_len;
757 fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL);
758 if (!fifo->ufo_in_band_v)
Surjit Reang2fda0962008-01-24 02:08:59 -0800759 return -ENOMEM;
760 mem_allocated += (size * sizeof(u64));
761 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500762
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 /* Allocation and initialization of RXDs in Rings */
764 size = 0;
765 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000766 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
767 struct ring_info *ring = &mac_control->rings[i];
768
769 if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000770 DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a "
771 "multiple of RxDs per Block\n",
772 dev->name, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 return FAILURE;
774 }
Joe Perches13d866a2009-08-24 17:29:41 +0000775 size += rx_cfg->num_rxd;
776 ring->block_count = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000777 (rxd_count[nic->rxd_mode] + 1);
Joe Perches13d866a2009-08-24 17:29:41 +0000778 ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500780 if (nic->rxd_mode == RXD_MODE_1)
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500781 size = (size * (sizeof(struct RxD1)));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500782 else
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500783 size = (size * (sizeof(struct RxD3)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784
785 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000786 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
787 struct ring_info *ring = &mac_control->rings[i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700788
Joe Perches13d866a2009-08-24 17:29:41 +0000789 ring->rx_curr_get_info.block_index = 0;
790 ring->rx_curr_get_info.offset = 0;
791 ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1;
792 ring->rx_curr_put_info.block_index = 0;
793 ring->rx_curr_put_info.offset = 0;
794 ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1;
795 ring->nic = nic;
796 ring->ring_no = i;
797 ring->lro = lro_enable;
798
799 blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 /* Allocating all the Rx blocks */
801 for (j = 0; j < blk_cnt; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500802 struct rx_block_info *rx_blocks;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500803 int l;
804
Joe Perches13d866a2009-08-24 17:29:41 +0000805 rx_blocks = &ring->rx_blocks[j];
Joe Perchesd44570e2009-08-24 17:29:44 +0000806 size = SIZE_OF_BLOCK; /* size is always page size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
808 &tmp_p_addr);
809 if (tmp_v_addr == NULL) {
810 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700811 * In case of failure, free_shared_mem()
812 * is called, which should free any
813 * memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 * failure happened.
815 */
Ananda Rajuda6971d2005-10-31 16:55:31 -0500816 rx_blocks->block_virt_addr = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 return -ENOMEM;
818 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400819 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820 memset(tmp_v_addr, 0, size);
Joe Perches4f870322009-08-24 17:29:42 +0000821
822 size = sizeof(struct rxd_info) *
823 rxd_count[nic->rxd_mode];
Ananda Rajuda6971d2005-10-31 16:55:31 -0500824 rx_blocks->block_virt_addr = tmp_v_addr;
825 rx_blocks->block_dma_addr = tmp_p_addr;
Joe Perches4f870322009-08-24 17:29:42 +0000826 rx_blocks->rxds = kmalloc(size, GFP_KERNEL);
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500827 if (!rx_blocks->rxds)
828 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000829 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000830 for (l = 0; l < rxd_count[nic->rxd_mode]; l++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500831 rx_blocks->rxds[l].virt_addr =
832 rx_blocks->block_virt_addr +
833 (rxd_size[nic->rxd_mode] * l);
834 rx_blocks->rxds[l].dma_addr =
835 rx_blocks->block_dma_addr +
836 (rxd_size[nic->rxd_mode] * l);
837 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 }
839 /* Interlinking all Rx Blocks */
840 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000841 int next = (j + 1) % blk_cnt;
842 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
843 tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr;
844 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
845 tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846
Joe Perchesd44570e2009-08-24 17:29:44 +0000847 pre_rxd_blk = (struct RxD_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 pre_rxd_blk->reserved_2_pNext_RxD_block =
Joe Perchesd44570e2009-08-24 17:29:44 +0000849 (unsigned long)tmp_v_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 pre_rxd_blk->pNext_RxD_Blk_physical =
Joe Perchesd44570e2009-08-24 17:29:44 +0000851 (u64)tmp_p_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 }
853 }
Veena Parat6d517a22007-07-23 02:20:51 -0400854 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500855 /*
856 * Allocation of Storages for buffer addresses in 2BUFF mode
857 * and the buffers as well.
858 */
859 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000860 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
861 struct ring_info *ring = &mac_control->rings[i];
862
863 blk_cnt = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000864 (rxd_count[nic->rxd_mode] + 1);
Joe Perches4f870322009-08-24 17:29:42 +0000865 size = sizeof(struct buffAdd *) * blk_cnt;
866 ring->ba = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000867 if (!ring->ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000869 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500870 for (j = 0; j < blk_cnt; j++) {
871 int k = 0;
Joe Perches4f870322009-08-24 17:29:42 +0000872
873 size = sizeof(struct buffAdd) *
874 (rxd_count[nic->rxd_mode] + 1);
875 ring->ba[j] = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000876 if (!ring->ba[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000878 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500879 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +0000880 ba = &ring->ba[j][k];
Joe Perches4f870322009-08-24 17:29:42 +0000881 size = BUF0_LEN + ALIGN_SIZE;
882 ba->ba_0_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500883 if (!ba->ba_0_org)
884 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000885 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500886 tmp = (unsigned long)ba->ba_0_org;
887 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000888 tmp &= ~((unsigned long)ALIGN_SIZE);
889 ba->ba_0 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500890
Joe Perches4f870322009-08-24 17:29:42 +0000891 size = BUF1_LEN + ALIGN_SIZE;
892 ba->ba_1_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500893 if (!ba->ba_1_org)
894 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000895 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000896 tmp = (unsigned long)ba->ba_1_org;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500897 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000898 tmp &= ~((unsigned long)ALIGN_SIZE);
899 ba->ba_1 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500900 k++;
901 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 }
903 }
904 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
906 /* Allocation and initialization of Statistics block */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500907 size = sizeof(struct stat_block);
Joe Perchesd44570e2009-08-24 17:29:44 +0000908 mac_control->stats_mem =
909 pci_alloc_consistent(nic->pdev, size,
910 &mac_control->stats_mem_phy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
912 if (!mac_control->stats_mem) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700913 /*
914 * In case of failure, free_shared_mem() is called, which
915 * should free any memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 * failure happened.
917 */
918 return -ENOMEM;
919 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400920 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921 mac_control->stats_mem_sz = size;
922
923 tmp_v_addr = mac_control->stats_mem;
Joe Perchesd44570e2009-08-24 17:29:44 +0000924 mac_control->stats_info = (struct stat_block *)tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 memset(tmp_v_addr, 0, size);
Joe Perches9e39f7c2009-08-25 08:52:00 +0000926 DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +0000927 (unsigned long long)tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400928 mac_control->stats_info->sw_stat.mem_allocated += mem_allocated;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 return SUCCESS;
930}
931
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700932/**
933 * free_shared_mem - Free the allocated Memory
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934 * @nic: Device private variable.
935 * Description: This function is to free all memory locations allocated by
936 * the init_shared_mem() function and return it to the kernel.
937 */
938
939static void free_shared_mem(struct s2io_nic *nic)
940{
941 int i, j, blk_cnt, size;
942 void *tmp_v_addr;
943 dma_addr_t tmp_p_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 int lst_size, lst_per_page;
Micah Gruber8910b492007-07-09 11:29:04 +0800945 struct net_device *dev;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400946 int page_num = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +0000947 struct config_param *config;
948 struct mac_info *mac_control;
949 struct stat_block *stats;
950 struct swStat *swstats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
952 if (!nic)
953 return;
954
Micah Gruber8910b492007-07-09 11:29:04 +0800955 dev = nic->dev;
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000958 mac_control = &nic->mac_control;
959 stats = mac_control->stats_info;
960 swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Joe Perchesd44570e2009-08-24 17:29:44 +0000962 lst_size = sizeof(struct TxD) * config->max_txds;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963 lst_per_page = PAGE_SIZE / lst_size;
964
965 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000966 struct fifo_info *fifo = &mac_control->fifos[i];
967 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
968
969 page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 for (j = 0; j < page_num; j++) {
971 int mem_blks = (j * lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000972 struct list_info_hold *fli;
973
974 if (!fifo->list_info)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400975 return;
Joe Perches13d866a2009-08-24 17:29:41 +0000976
977 fli = &fifo->list_info[mem_blks];
978 if (!fli->list_virt_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979 break;
980 pci_free_consistent(nic->pdev, PAGE_SIZE,
Joe Perches13d866a2009-08-24 17:29:41 +0000981 fli->list_virt_addr,
982 fli->list_phy_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000983 swstats->mem_freed += PAGE_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700985 /* If we got a zero DMA address during allocation,
986 * free the page now
987 */
988 if (mac_control->zerodma_virt_addr) {
989 pci_free_consistent(nic->pdev, PAGE_SIZE,
990 mac_control->zerodma_virt_addr,
991 (dma_addr_t)0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400992 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000993 "%s: Freeing TxDL with zero DMA address. "
994 "Virtual address %p\n",
995 dev->name, mac_control->zerodma_virt_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000996 swstats->mem_freed += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700997 }
Joe Perches13d866a2009-08-24 17:29:41 +0000998 kfree(fifo->list_info);
Joe Perches82c2d022009-08-24 17:29:48 +0000999 swstats->mem_freed += tx_cfg->fifo_len *
Joe Perchesd44570e2009-08-24 17:29:44 +00001000 sizeof(struct list_info_hold);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 }
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003 size = SIZE_OF_BLOCK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001005 struct ring_info *ring = &mac_control->rings[i];
1006
1007 blk_cnt = ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001009 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
1010 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 if (tmp_v_addr == NULL)
1012 break;
1013 pci_free_consistent(nic->pdev, size,
1014 tmp_v_addr, tmp_p_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +00001015 swstats->mem_freed += size;
Joe Perches13d866a2009-08-24 17:29:41 +00001016 kfree(ring->rx_blocks[j].rxds);
Joe Perchesffb5df62009-08-24 17:29:47 +00001017 swstats->mem_freed += sizeof(struct rxd_info) *
1018 rxd_count[nic->rxd_mode];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 }
1020 }
1021
Veena Parat6d517a22007-07-23 02:20:51 -04001022 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05001023 /* Freeing buffer storage addresses in 2BUFF mode. */
1024 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001025 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1026 struct ring_info *ring = &mac_control->rings[i];
1027
1028 blk_cnt = rx_cfg->num_rxd /
1029 (rxd_count[nic->rxd_mode] + 1);
Ananda Rajuda6971d2005-10-31 16:55:31 -05001030 for (j = 0; j < blk_cnt; j++) {
1031 int k = 0;
Joe Perches13d866a2009-08-24 17:29:41 +00001032 if (!ring->ba[j])
Ananda Rajuda6971d2005-10-31 16:55:31 -05001033 continue;
1034 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +00001035 struct buffAdd *ba = &ring->ba[j][k];
Ananda Rajuda6971d2005-10-31 16:55:31 -05001036 kfree(ba->ba_0_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001037 swstats->mem_freed +=
1038 BUF0_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001039 kfree(ba->ba_1_org);
Joe Perchesffb5df62009-08-24 17:29:47 +00001040 swstats->mem_freed +=
1041 BUF1_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05001042 k++;
1043 }
Joe Perches13d866a2009-08-24 17:29:41 +00001044 kfree(ring->ba[j]);
Joe Perchesffb5df62009-08-24 17:29:47 +00001045 swstats->mem_freed += sizeof(struct buffAdd) *
1046 (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047 }
Joe Perches13d866a2009-08-24 17:29:41 +00001048 kfree(ring->ba);
Joe Perchesffb5df62009-08-24 17:29:47 +00001049 swstats->mem_freed += sizeof(struct buffAdd *) *
1050 blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053
Surjit Reang2fda0962008-01-24 02:08:59 -08001054 for (i = 0; i < nic->config.tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001055 struct fifo_info *fifo = &mac_control->fifos[i];
1056 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1057
1058 if (fifo->ufo_in_band_v) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001059 swstats->mem_freed += tx_cfg->fifo_len *
1060 sizeof(u64);
Joe Perches13d866a2009-08-24 17:29:41 +00001061 kfree(fifo->ufo_in_band_v);
Surjit Reang2fda0962008-01-24 02:08:59 -08001062 }
1063 }
1064
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 if (mac_control->stats_mem) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001066 swstats->mem_freed += mac_control->stats_mem_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 pci_free_consistent(nic->pdev,
1068 mac_control->stats_mem_sz,
1069 mac_control->stats_mem,
1070 mac_control->stats_mem_phy);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04001071 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072}
1073
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001074/**
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001075 * s2io_verify_pci_mode -
1076 */
1077
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001078static int s2io_verify_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001079{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001080 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001081 register u64 val64 = 0;
1082 int mode;
1083
1084 val64 = readq(&bar0->pci_mode);
1085 mode = (u8)GET_PCI_MODE(val64);
1086
Joe Perchesd44570e2009-08-24 17:29:44 +00001087 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001088 return -1; /* Unknown PCI mode */
1089 return mode;
1090}
1091
Ananda Rajuc92ca042006-04-21 19:18:03 -04001092#define NEC_VENID 0x1033
1093#define NEC_DEVID 0x0125
1094static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
1095{
1096 struct pci_dev *tdev = NULL;
Alan Cox26d36b62006-09-15 15:22:51 +01001097 while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
1098 if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) {
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001099 if (tdev->bus == s2io_pdev->bus->parent) {
Alan Cox26d36b62006-09-15 15:22:51 +01001100 pci_dev_put(tdev);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001101 return 1;
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001102 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001103 }
1104 }
1105 return 0;
1106}
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001107
Adrian Bunk7b32a312006-05-16 17:30:50 +02001108static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001109/**
1110 * s2io_print_pci_mode -
1111 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001112static int s2io_print_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001113{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001114 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001115 register u64 val64 = 0;
1116 int mode;
1117 struct config_param *config = &nic->config;
Joe Perches9e39f7c2009-08-25 08:52:00 +00001118 const char *pcimode;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001119
1120 val64 = readq(&bar0->pci_mode);
1121 mode = (u8)GET_PCI_MODE(val64);
1122
Joe Perchesd44570e2009-08-24 17:29:44 +00001123 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001124 return -1; /* Unknown PCI mode */
1125
Ananda Rajuc92ca042006-04-21 19:18:03 -04001126 config->bus_speed = bus_speed[mode];
1127
1128 if (s2io_on_nec_bridge(nic->pdev)) {
1129 DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001130 nic->dev->name);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001131 return mode;
1132 }
1133
Joe Perchesd44570e2009-08-24 17:29:44 +00001134 switch (mode) {
1135 case PCI_MODE_PCI_33:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001136 pcimode = "33MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001137 break;
1138 case PCI_MODE_PCI_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001139 pcimode = "66MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001140 break;
1141 case PCI_MODE_PCIX_M1_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001142 pcimode = "66MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001143 break;
1144 case PCI_MODE_PCIX_M1_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001145 pcimode = "100MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001146 break;
1147 case PCI_MODE_PCIX_M1_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001148 pcimode = "133MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001149 break;
1150 case PCI_MODE_PCIX_M2_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001151 pcimode = "133MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001152 break;
1153 case PCI_MODE_PCIX_M2_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001154 pcimode = "200MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001155 break;
1156 case PCI_MODE_PCIX_M2_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001157 pcimode = "266MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001158 break;
1159 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001160 pcimode = "unsupported bus!";
1161 mode = -1;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001162 }
1163
Joe Perches9e39f7c2009-08-25 08:52:00 +00001164 DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n",
1165 nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode);
1166
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001167 return mode;
1168}
1169
1170/**
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001171 * init_tti - Initialization transmit traffic interrupt scheme
1172 * @nic: device private variable
1173 * @link: link status (UP/DOWN) used to enable/disable continuous
1174 * transmit interrupts
1175 * Description: The function configures transmit traffic interrupts
1176 * Return Value: SUCCESS on success and
1177 * '-1' on failure
1178 */
1179
Adrian Bunk0d66afe2008-03-04 15:19:22 -08001180static int init_tti(struct s2io_nic *nic, int link)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001181{
1182 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1183 register u64 val64 = 0;
1184 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00001185 struct config_param *config = &nic->config;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001186
1187 for (i = 0; i < config->tx_fifo_num; i++) {
1188 /*
1189 * TTI Initialization. Default Tx timer gets us about
1190 * 250 interrupts per sec. Continuous interrupts are enabled
1191 * by default.
1192 */
1193 if (nic->device_type == XFRAME_II_DEVICE) {
1194 int count = (nic->config.bus_speed * 125)/2;
1195 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
1196 } else
1197 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1198
1199 val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001200 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1201 TTI_DATA1_MEM_TX_URNG_C(0x30) |
1202 TTI_DATA1_MEM_TX_TIMER_AC_EN;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001203 if (i == 0)
1204 if (use_continuous_tx_intrs && (link == LINK_UP))
1205 val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001206 writeq(val64, &bar0->tti_data1_mem);
1207
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001208 if (nic->config.intr_type == MSI_X) {
1209 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1210 TTI_DATA2_MEM_TX_UFC_B(0x100) |
1211 TTI_DATA2_MEM_TX_UFC_C(0x200) |
1212 TTI_DATA2_MEM_TX_UFC_D(0x300);
1213 } else {
1214 if ((nic->config.tx_steering_type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00001215 TX_DEFAULT_STEERING) &&
1216 (config->tx_fifo_num > 1) &&
1217 (i >= nic->udp_fifo_idx) &&
1218 (i < (nic->udp_fifo_idx +
1219 nic->total_udp_fifos)))
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001220 val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) |
1221 TTI_DATA2_MEM_TX_UFC_B(0x80) |
1222 TTI_DATA2_MEM_TX_UFC_C(0x100) |
1223 TTI_DATA2_MEM_TX_UFC_D(0x120);
1224 else
1225 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1226 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1227 TTI_DATA2_MEM_TX_UFC_C(0x40) |
1228 TTI_DATA2_MEM_TX_UFC_D(0x80);
1229 }
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001230
1231 writeq(val64, &bar0->tti_data2_mem);
1232
Joe Perchesd44570e2009-08-24 17:29:44 +00001233 val64 = TTI_CMD_MEM_WE |
1234 TTI_CMD_MEM_STROBE_NEW_CMD |
1235 TTI_CMD_MEM_OFFSET(i);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001236 writeq(val64, &bar0->tti_command_mem);
1237
1238 if (wait_for_cmd_complete(&bar0->tti_command_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00001239 TTI_CMD_MEM_STROBE_NEW_CMD,
1240 S2IO_BIT_RESET) != SUCCESS)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001241 return FAILURE;
1242 }
1243
1244 return SUCCESS;
1245}
1246
1247/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001248 * init_nic - Initialization of hardware
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001249 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001250 * Description: The function sequentially configures every block
1251 * of the H/W from their reset values.
1252 * Return Value: SUCCESS on success and
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 * '-1' on failure (endian settings incorrect).
1254 */
1255
1256static int init_nic(struct s2io_nic *nic)
1257{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001258 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 struct net_device *dev = nic->dev;
1260 register u64 val64 = 0;
1261 void __iomem *add;
1262 u32 time;
1263 int i, j;
Ananda Rajuc92ca042006-04-21 19:18:03 -04001264 int dtx_cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 unsigned long long mem_share;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001266 int mem_size;
Joe Perchesffb5df62009-08-24 17:29:47 +00001267 struct config_param *config = &nic->config;
1268 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001270 /* to set the swapper controle on the card */
Joe Perchesd44570e2009-08-24 17:29:44 +00001271 if (s2io_set_swapper(nic)) {
1272 DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n");
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001273 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 }
1275
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001276 /*
1277 * Herc requires EOI to be removed from reset before XGXS, so..
1278 */
1279 if (nic->device_type & XFRAME_II_DEVICE) {
1280 val64 = 0xA500000000ULL;
1281 writeq(val64, &bar0->sw_reset);
1282 msleep(500);
1283 val64 = readq(&bar0->sw_reset);
1284 }
1285
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 /* Remove XGXS from reset state */
1287 val64 = 0;
1288 writeq(val64, &bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289 msleep(500);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001290 val64 = readq(&bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291
Sreenivasa Honnur79620242007-12-05 23:59:28 -05001292 /* Ensure that it's safe to access registers by checking
1293 * RIC_RUNNING bit is reset. Check is valid only for XframeII.
1294 */
1295 if (nic->device_type == XFRAME_II_DEVICE) {
1296 for (i = 0; i < 50; i++) {
1297 val64 = readq(&bar0->adapter_status);
1298 if (!(val64 & ADAPTER_STATUS_RIC_RUNNING))
1299 break;
1300 msleep(10);
1301 }
1302 if (i == 50)
1303 return -ENODEV;
1304 }
1305
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 /* Enable Receiving broadcasts */
1307 add = &bar0->mac_cfg;
1308 val64 = readq(&bar0->mac_cfg);
1309 val64 |= MAC_RMAC_BCAST_ENABLE;
1310 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00001311 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1313 writel((u32) (val64 >> 32), (add + 4));
1314
1315 /* Read registers in all blocks */
1316 val64 = readq(&bar0->mac_int_mask);
1317 val64 = readq(&bar0->mc_int_mask);
1318 val64 = readq(&bar0->xgxs_int_mask);
1319
1320 /* Set MTU */
1321 val64 = dev->mtu;
1322 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
1323
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001324 if (nic->device_type & XFRAME_II_DEVICE) {
1325 while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07001326 SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 &bar0->dtx_control, UF);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001328 if (dtx_cnt & 0x1)
1329 msleep(1); /* Necessary!! */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 dtx_cnt++;
1331 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001332 } else {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001333 while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
1334 SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
1335 &bar0->dtx_control, UF);
1336 val64 = readq(&bar0->dtx_control);
1337 dtx_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 }
1339 }
1340
1341 /* Tx DMA Initialization */
1342 val64 = 0;
1343 writeq(val64, &bar0->tx_fifo_partition_0);
1344 writeq(val64, &bar0->tx_fifo_partition_1);
1345 writeq(val64, &bar0->tx_fifo_partition_2);
1346 writeq(val64, &bar0->tx_fifo_partition_3);
1347
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 for (i = 0, j = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001349 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1350
1351 val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) |
1352 vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353
1354 if (i == (config->tx_fifo_num - 1)) {
1355 if (i % 2 == 0)
1356 i++;
1357 }
1358
1359 switch (i) {
1360 case 1:
1361 writeq(val64, &bar0->tx_fifo_partition_0);
1362 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001363 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 break;
1365 case 3:
1366 writeq(val64, &bar0->tx_fifo_partition_1);
1367 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001368 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369 break;
1370 case 5:
1371 writeq(val64, &bar0->tx_fifo_partition_2);
1372 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001373 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374 break;
1375 case 7:
1376 writeq(val64, &bar0->tx_fifo_partition_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001377 val64 = 0;
1378 j = 0;
1379 break;
1380 default:
1381 j++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 break;
1383 }
1384 }
1385
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001386 /*
1387 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1388 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1389 */
Joe Perchesd44570e2009-08-24 17:29:44 +00001390 if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001391 writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
1392
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 val64 = readq(&bar0->tx_fifo_partition_0);
1394 DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001395 &bar0->tx_fifo_partition_0, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001397 /*
1398 * Initialization of Tx_PA_CONFIG register to ignore packet
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 * integrity checking.
1400 */
1401 val64 = readq(&bar0->tx_pa_cfg);
Joe Perchesd44570e2009-08-24 17:29:44 +00001402 val64 |= TX_PA_CFG_IGNORE_FRM_ERR |
1403 TX_PA_CFG_IGNORE_SNAP_OUI |
1404 TX_PA_CFG_IGNORE_LLC_CTRL |
1405 TX_PA_CFG_IGNORE_L2_ERR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 writeq(val64, &bar0->tx_pa_cfg);
1407
1408 /* Rx DMA intialization. */
1409 val64 = 0;
1410 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001411 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1412
1413 val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414 }
1415 writeq(val64, &bar0->rx_queue_priority);
1416
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001417 /*
1418 * Allocating equal share of memory to all the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 * configured Rings.
1420 */
1421 val64 = 0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001422 if (nic->device_type & XFRAME_II_DEVICE)
1423 mem_size = 32;
1424 else
1425 mem_size = 64;
1426
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 for (i = 0; i < config->rx_ring_num; i++) {
1428 switch (i) {
1429 case 0:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001430 mem_share = (mem_size / config->rx_ring_num +
1431 mem_size % config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share);
1433 continue;
1434 case 1:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001435 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share);
1437 continue;
1438 case 2:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001439 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440 val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share);
1441 continue;
1442 case 3:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001443 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share);
1445 continue;
1446 case 4:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001447 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share);
1449 continue;
1450 case 5:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001451 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share);
1453 continue;
1454 case 6:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001455 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share);
1457 continue;
1458 case 7:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001459 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share);
1461 continue;
1462 }
1463 }
1464 writeq(val64, &bar0->rx_queue_cfg);
1465
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001466 /*
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001467 * Filling Tx round robin registers
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001468 * as per the number of FIFOs for equal scheduling priority
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001470 switch (config->tx_fifo_num) {
1471 case 1:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001472 val64 = 0x0;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001473 writeq(val64, &bar0->tx_w_round_robin_0);
1474 writeq(val64, &bar0->tx_w_round_robin_1);
1475 writeq(val64, &bar0->tx_w_round_robin_2);
1476 writeq(val64, &bar0->tx_w_round_robin_3);
1477 writeq(val64, &bar0->tx_w_round_robin_4);
1478 break;
1479 case 2:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001480 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001481 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001482 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001483 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001484 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001485 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001486 writeq(val64, &bar0->tx_w_round_robin_4);
1487 break;
1488 case 3:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001489 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001490 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001491 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001492 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001493 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001494 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001495 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001496 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001497 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001498 writeq(val64, &bar0->tx_w_round_robin_4);
1499 break;
1500 case 4:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001501 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001502 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001503 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001504 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001505 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001506 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001507 writeq(val64, &bar0->tx_w_round_robin_4);
1508 break;
1509 case 5:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001510 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001511 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001512 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001513 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001514 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001515 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001516 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001517 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001518 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001519 writeq(val64, &bar0->tx_w_round_robin_4);
1520 break;
1521 case 6:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001522 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001523 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001524 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001525 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001526 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001527 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001528 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001529 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001530 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001531 writeq(val64, &bar0->tx_w_round_robin_4);
1532 break;
1533 case 7:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001534 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001535 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001536 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001537 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001538 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001539 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001540 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001541 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001542 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001543 writeq(val64, &bar0->tx_w_round_robin_4);
1544 break;
1545 case 8:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001546 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001547 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001548 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001549 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001550 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001551 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001552 writeq(val64, &bar0->tx_w_round_robin_4);
1553 break;
1554 }
1555
Ananda Rajub41477f2006-07-24 19:52:49 -04001556 /* Enable all configured Tx FIFO partitions */
Ananda Raju5d3213c2006-04-21 19:23:26 -04001557 val64 = readq(&bar0->tx_fifo_partition_0);
1558 val64 |= (TX_FIFO_PARTITION_EN);
1559 writeq(val64, &bar0->tx_fifo_partition_0);
1560
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001561 /* Filling the Rx round robin registers as per the
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001562 * number of Rings and steering based on QoS with
1563 * equal priority.
1564 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001565 switch (config->rx_ring_num) {
1566 case 1:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001567 val64 = 0x0;
1568 writeq(val64, &bar0->rx_w_round_robin_0);
1569 writeq(val64, &bar0->rx_w_round_robin_1);
1570 writeq(val64, &bar0->rx_w_round_robin_2);
1571 writeq(val64, &bar0->rx_w_round_robin_3);
1572 writeq(val64, &bar0->rx_w_round_robin_4);
1573
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001574 val64 = 0x8080808080808080ULL;
1575 writeq(val64, &bar0->rts_qos_steering);
1576 break;
1577 case 2:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001578 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001579 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001580 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001581 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001582 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001583 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001584 writeq(val64, &bar0->rx_w_round_robin_4);
1585
1586 val64 = 0x8080808040404040ULL;
1587 writeq(val64, &bar0->rts_qos_steering);
1588 break;
1589 case 3:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001590 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001591 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001592 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001593 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001594 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001595 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001596 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001597 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001598 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001599 writeq(val64, &bar0->rx_w_round_robin_4);
1600
1601 val64 = 0x8080804040402020ULL;
1602 writeq(val64, &bar0->rts_qos_steering);
1603 break;
1604 case 4:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001605 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001606 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001607 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001608 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001609 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001610 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001611 writeq(val64, &bar0->rx_w_round_robin_4);
1612
1613 val64 = 0x8080404020201010ULL;
1614 writeq(val64, &bar0->rts_qos_steering);
1615 break;
1616 case 5:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001617 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001618 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001619 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001620 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001621 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001622 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001623 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001624 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001625 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001626 writeq(val64, &bar0->rx_w_round_robin_4);
1627
1628 val64 = 0x8080404020201008ULL;
1629 writeq(val64, &bar0->rts_qos_steering);
1630 break;
1631 case 6:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001632 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001633 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001634 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001635 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001636 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001637 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001638 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001639 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001640 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001641 writeq(val64, &bar0->rx_w_round_robin_4);
1642
1643 val64 = 0x8080404020100804ULL;
1644 writeq(val64, &bar0->rts_qos_steering);
1645 break;
1646 case 7:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001647 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001648 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001649 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001650 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001651 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001652 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001653 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001654 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001655 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001656 writeq(val64, &bar0->rx_w_round_robin_4);
1657
1658 val64 = 0x8080402010080402ULL;
1659 writeq(val64, &bar0->rts_qos_steering);
1660 break;
1661 case 8:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001662 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001663 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001664 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001665 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001666 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001667 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001668 writeq(val64, &bar0->rx_w_round_robin_4);
1669
1670 val64 = 0x8040201008040201ULL;
1671 writeq(val64, &bar0->rts_qos_steering);
1672 break;
1673 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001674
1675 /* UDP Fix */
1676 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001677 for (i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678 writeq(val64, &bar0->rts_frm_len_n[i]);
1679
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001680 /* Set the default rts frame length for the rings configured */
1681 val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22);
1682 for (i = 0 ; i < config->rx_ring_num ; i++)
1683 writeq(val64, &bar0->rts_frm_len_n[i]);
1684
1685 /* Set the frame length for the configured rings
1686 * desired by the user
1687 */
1688 for (i = 0; i < config->rx_ring_num; i++) {
1689 /* If rts_frm_len[i] == 0 then it is assumed that user not
1690 * specified frame length steering.
1691 * If the user provides the frame length then program
1692 * the rts_frm_len register for those values or else
1693 * leave it as it is.
1694 */
1695 if (rts_frm_len[i] != 0) {
1696 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]),
Joe Perchesd44570e2009-08-24 17:29:44 +00001697 &bar0->rts_frm_len_n[i]);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001698 }
1699 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001700
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001701 /* Disable differentiated services steering logic */
1702 for (i = 0; i < 64; i++) {
1703 if (rts_ds_steer(nic, i, 0) == FAILURE) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001704 DBG_PRINT(ERR_DBG,
1705 "%s: rts_ds_steer failed on codepoint %d\n",
1706 dev->name, i);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001707 return -ENODEV;
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001708 }
1709 }
1710
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001711 /* Program statistics memory */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001714 if (nic->device_type == XFRAME_II_DEVICE) {
1715 val64 = STAT_BC(0x320);
1716 writeq(val64, &bar0->stat_byte_cnt);
1717 }
1718
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001719 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720 * Initializing the sampling rate for the device to calculate the
1721 * bandwidth utilization.
1722 */
1723 val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001724 MAC_RX_LINK_UTIL_VAL(rmac_util_period);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 writeq(val64, &bar0->mac_link_util);
1726
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001727 /*
1728 * Initializing the Transmit and Receive Traffic Interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 * Scheme.
1730 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001731
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001732 /* Initialize TTI */
1733 if (SUCCESS != init_tti(nic, nic->last_link_state))
1734 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001736 /* RTI Initialization */
1737 if (nic->device_type == XFRAME_II_DEVICE) {
1738 /*
1739 * Programmed to generate Apprx 500 Intrs per
1740 * second
1741 */
1742 int count = (nic->config.bus_speed * 125)/4;
1743 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
1744 } else
1745 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1746 val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001747 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1748 RTI_DATA1_MEM_RX_URNG_C(0x30) |
1749 RTI_DATA1_MEM_RX_TIMER_AC_EN;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001750
1751 writeq(val64, &bar0->rti_data1_mem);
1752
1753 val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
1754 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1755 if (nic->config.intr_type == MSI_X)
Joe Perchesd44570e2009-08-24 17:29:44 +00001756 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) |
1757 RTI_DATA2_MEM_RX_UFC_D(0x40));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001758 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001759 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) |
1760 RTI_DATA2_MEM_RX_UFC_D(0x80));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001761 writeq(val64, &bar0->rti_data2_mem);
1762
1763 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001764 val64 = RTI_CMD_MEM_WE |
1765 RTI_CMD_MEM_STROBE_NEW_CMD |
1766 RTI_CMD_MEM_OFFSET(i);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001767 writeq(val64, &bar0->rti_command_mem);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001768
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001769 /*
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001770 * Once the operation completes, the Strobe bit of the
1771 * command register will be reset. We poll for this
1772 * particular condition. We wait for a maximum of 500ms
1773 * for the operation to complete, if it's not complete
1774 * by then we return error.
1775 */
1776 time = 0;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00001777 while (true) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001778 val64 = readq(&bar0->rti_command_mem);
1779 if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD))
1780 break;
1781
1782 if (time > 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001783 DBG_PRINT(ERR_DBG, "%s: RTI init failed\n",
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001784 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001785 return -ENODEV;
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -07001786 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001787 time++;
1788 msleep(50);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 }
1791
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001792 /*
1793 * Initializing proper values as Pause threshold into all
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 * the 8 Queues on Rx side.
1795 */
1796 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3);
1797 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
1798
1799 /* Disable RMAC PAD STRIPPING */
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01001800 add = &bar0->mac_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 val64 = readq(&bar0->mac_cfg);
1802 val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
1803 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1804 writel((u32) (val64), add);
1805 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1806 writel((u32) (val64 >> 32), (add + 4));
1807 val64 = readq(&bar0->mac_cfg);
1808
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05001809 /* Enable FCS stripping by adapter */
1810 add = &bar0->mac_cfg;
1811 val64 = readq(&bar0->mac_cfg);
1812 val64 |= MAC_CFG_RMAC_STRIP_FCS;
1813 if (nic->device_type == XFRAME_II_DEVICE)
1814 writeq(val64, &bar0->mac_cfg);
1815 else {
1816 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1817 writel((u32) (val64), add);
1818 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1819 writel((u32) (val64 >> 32), (add + 4));
1820 }
1821
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001822 /*
1823 * Set the time value to be inserted in the pause frame
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 * generated by xena.
1825 */
1826 val64 = readq(&bar0->rmac_pause_cfg);
1827 val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1828 val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time);
1829 writeq(val64, &bar0->rmac_pause_cfg);
1830
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001831 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 * Set the Threshold Limit for Generating the pause frame
1833 * If the amount of data in any Queue exceeds ratio of
1834 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1835 * pause frame is generated
1836 */
1837 val64 = 0;
1838 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001839 val64 |= (((u64)0xFF00 |
1840 nic->mac_control.mc_pause_threshold_q0q3)
1841 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842 }
1843 writeq(val64, &bar0->mc_pause_thresh_q0q3);
1844
1845 val64 = 0;
1846 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001847 val64 |= (((u64)0xFF00 |
1848 nic->mac_control.mc_pause_threshold_q4q7)
1849 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 }
1851 writeq(val64, &bar0->mc_pause_thresh_q4q7);
1852
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001853 /*
1854 * TxDMA will stop Read request if the number of read split has
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855 * exceeded the limit pointed by shared_splits
1856 */
1857 val64 = readq(&bar0->pic_control);
1858 val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
1859 writeq(val64, &bar0->pic_control);
1860
Ananda Raju863c11a2006-04-21 19:03:13 -04001861 if (nic->config.bus_speed == 266) {
1862 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
1863 writeq(0x0, &bar0->read_retry_delay);
1864 writeq(0x0, &bar0->write_retry_delay);
1865 }
1866
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001867 /*
1868 * Programming the Herc to split every write transaction
1869 * that does not start on an ADB to reduce disconnects.
1870 */
1871 if (nic->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05001872 val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
1873 MISC_LINK_STABILITY_PRD(3);
Ananda Raju863c11a2006-04-21 19:03:13 -04001874 writeq(val64, &bar0->misc_control);
1875 val64 = readq(&bar0->pic_control2);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07001876 val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15));
Ananda Raju863c11a2006-04-21 19:03:13 -04001877 writeq(val64, &bar0->pic_control2);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001878 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001879 if (strstr(nic->product_name, "CX4")) {
1880 val64 = TMAC_AVG_IPG(0x17);
1881 writeq(val64, &bar0->tmac_avg_ipg);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001882 }
1883
Linus Torvalds1da177e2005-04-16 15:20:36 -07001884 return SUCCESS;
1885}
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001886#define LINK_UP_DOWN_INTERRUPT 1
1887#define MAC_RMAC_ERR_TIMER 2
1888
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001889static int s2io_link_fault_indication(struct s2io_nic *nic)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001890{
1891 if (nic->device_type == XFRAME_II_DEVICE)
1892 return LINK_UP_DOWN_INTERRUPT;
1893 else
1894 return MAC_RMAC_ERR_TIMER;
1895}
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07001896
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001897/**
1898 * do_s2io_write_bits - update alarm bits in alarm register
1899 * @value: alarm bits
1900 * @flag: interrupt status
1901 * @addr: address value
1902 * Description: update alarm bits in alarm register
1903 * Return Value:
1904 * NONE.
1905 */
1906static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr)
1907{
1908 u64 temp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001910 temp64 = readq(addr);
1911
Joe Perchesd44570e2009-08-24 17:29:44 +00001912 if (flag == ENABLE_INTRS)
1913 temp64 &= ~((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001914 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001915 temp64 |= ((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001916 writeq(temp64, addr);
1917}
1918
Stephen Hemminger43b7c452007-10-05 12:39:21 -07001919static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001920{
1921 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1922 register u64 gen_int_mask = 0;
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001923 u64 interruptible;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001924
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001925 writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001926 if (mask & TX_DMA_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001927 gen_int_mask |= TXDMA_INT_M;
1928
1929 do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001930 TXDMA_PCC_INT | TXDMA_TTI_INT |
1931 TXDMA_LSO_INT | TXDMA_TPA_INT |
1932 TXDMA_SM_INT, flag, &bar0->txdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001933
1934 do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001935 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
1936 PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag,
1937 &bar0->pfc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001938
1939 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001940 TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR |
1941 TDA_PCIX_ERR, flag, &bar0->tda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001942
1943 do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001944 PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
1945 PCC_N_SERR | PCC_6_COF_OV_ERR |
1946 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
1947 PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR |
1948 PCC_TXB_ECC_SG_ERR,
1949 flag, &bar0->pcc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001950
1951 do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001952 TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001953
1954 do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001955 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM |
1956 LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
1957 flag, &bar0->lso_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001958
1959 do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP,
Joe Perchesd44570e2009-08-24 17:29:44 +00001960 flag, &bar0->tpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001961
1962 do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001963 }
1964
1965 if (mask & TX_MAC_INTR) {
1966 gen_int_mask |= TXMAC_INT_M;
1967 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001968 &bar0->mac_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001969 do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001970 TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
1971 TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
1972 flag, &bar0->mac_tmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001973 }
1974
1975 if (mask & TX_XGXS_INTR) {
1976 gen_int_mask |= TXXGXS_INT_M;
1977 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001978 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001979 do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001980 TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
1981 flag, &bar0->xgxs_txgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001982 }
1983
1984 if (mask & RX_DMA_INTR) {
1985 gen_int_mask |= RXDMA_INT_M;
1986 do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M |
Joe Perchesd44570e2009-08-24 17:29:44 +00001987 RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M,
1988 flag, &bar0->rxdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001989 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001990 RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM |
1991 RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR |
1992 RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001993 do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn |
Joe Perchesd44570e2009-08-24 17:29:44 +00001994 PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn |
1995 PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag,
1996 &bar0->prc_pcix_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001997 do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001998 RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag,
1999 &bar0->rpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002000 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00002001 RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM |
2002 RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR |
2003 RDA_FRM_ECC_SG_ERR |
2004 RDA_MISC_ERR|RDA_PCIX_ERR,
2005 flag, &bar0->rda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002006 do_s2io_write_bits(RTI_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00002007 RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
2008 flag, &bar0->rti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002009 }
2010
2011 if (mask & RX_MAC_INTR) {
2012 gen_int_mask |= RXMAC_INT_M;
2013 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002014 &bar0->mac_int_mask);
2015 interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
2016 RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
2017 RMAC_DOUBLE_ECC_ERR);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04002018 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER)
2019 interruptible |= RMAC_LINK_STATE_CHANGE_INT;
2020 do_s2io_write_bits(interruptible,
Joe Perchesd44570e2009-08-24 17:29:44 +00002021 flag, &bar0->mac_rmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002022 }
2023
Joe Perchesd44570e2009-08-24 17:29:44 +00002024 if (mask & RX_XGXS_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002025 gen_int_mask |= RXXGXS_INT_M;
2026 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002027 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002028 do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002029 &bar0->xgxs_rxgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002030 }
2031
2032 if (mask & MC_INTR) {
2033 gen_int_mask |= MC_INT_M;
Joe Perchesd44570e2009-08-24 17:29:44 +00002034 do_s2io_write_bits(MC_INT_MASK_MC_INT,
2035 flag, &bar0->mc_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002036 do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG |
Joe Perchesd44570e2009-08-24 17:29:44 +00002037 MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag,
2038 &bar0->mc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002039 }
2040 nic->general_int_mask = gen_int_mask;
2041
2042 /* Remove this line when alarm interrupts are enabled */
2043 nic->general_int_mask = 0;
2044}
Joe Perchesd44570e2009-08-24 17:29:44 +00002045
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002046/**
2047 * en_dis_able_nic_intrs - Enable or Disable the interrupts
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048 * @nic: device private variable,
2049 * @mask: A mask indicating which Intr block must be modified and,
2050 * @flag: A flag indicating whether to enable or disable the Intrs.
2051 * Description: This function will either disable or enable the interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002052 * depending on the flag argument. The mask argument can be used to
2053 * enable/disable any Intr block.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054 * Return Value: NONE.
2055 */
2056
2057static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
2058{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002059 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002060 register u64 temp64 = 0, intr_mask = 0;
2061
2062 intr_mask = nic->general_int_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063
2064 /* Top level interrupt classification */
2065 /* PIC Interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002066 if (mask & TX_PIC_INTR) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067 /* Enable PIC Intrs in the general intr mask register */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002068 intr_mask |= TXPIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002070 /*
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002071 * If Hercules adapter enable GPIO otherwise
Ananda Rajub41477f2006-07-24 19:52:49 -04002072 * disable all PCIX, Flash, MDIO, IIC and GPIO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002073 * interrupts for now.
2074 * TODO
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002076 if (s2io_link_fault_indication(nic) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002077 LINK_UP_DOWN_INTERRUPT) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002078 do_s2io_write_bits(PIC_INT_GPIO, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002079 &bar0->pic_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002080 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002081 &bar0->gpio_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002082 } else
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002083 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002085 /*
2086 * Disable PIC Intrs in the general
2087 * intr mask register
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088 */
2089 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 }
2091 }
2092
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 /* Tx traffic interrupts */
2094 if (mask & TX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002095 intr_mask |= TXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002097 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098 * Enable all the Tx side interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002099 * writing 0 Enables all 64 TX interrupt levels
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100 */
2101 writeq(0x0, &bar0->tx_traffic_mask);
2102 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002103 /*
2104 * Disable Tx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105 * register.
2106 */
2107 writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 }
2109 }
2110
2111 /* Rx traffic interrupts */
2112 if (mask & RX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002113 intr_mask |= RXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 if (flag == ENABLE_INTRS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115 /* writing 0 Enables all 8 RX interrupt levels */
2116 writeq(0x0, &bar0->rx_traffic_mask);
2117 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002118 /*
2119 * Disable Rx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 * register.
2121 */
2122 writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 }
2124 }
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002125
2126 temp64 = readq(&bar0->general_int_mask);
2127 if (flag == ENABLE_INTRS)
Joe Perchesd44570e2009-08-24 17:29:44 +00002128 temp64 &= ~((u64)intr_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002129 else
2130 temp64 = DISABLE_ALL_INTRS;
2131 writeq(temp64, &bar0->general_int_mask);
2132
2133 nic->general_int_mask = readq(&bar0->general_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002134}
2135
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002136/**
2137 * verify_pcc_quiescent- Checks for PCC quiescent state
2138 * Return: 1 If PCC is quiescence
2139 * 0 If PCC is not quiescence
2140 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002141static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002142{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002143 int ret = 0, herc;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002144 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002145 u64 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002146
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002147 herc = (sp->device_type == XFRAME_II_DEVICE);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002148
Tobias Klauserf957bcf2009-06-04 23:07:59 +00002149 if (flag == false) {
Auke Kok44c10132007-06-08 15:46:36 -07002150 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002151 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002152 ret = 1;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002153 } else {
2154 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002155 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002156 }
2157 } else {
Auke Kok44c10132007-06-08 15:46:36 -07002158 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002159 if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002160 ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002161 ret = 1;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002162 } else {
2163 if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002164 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002165 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002166 }
2167 }
2168
2169 return ret;
2170}
2171/**
2172 * verify_xena_quiescence - Checks whether the H/W is ready
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 * Description: Returns whether the H/W is ready to go or not. Depending
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002174 * on whether adapter enable bit was written or not the comparison
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 * differs and the calling function passes the input argument flag to
2176 * indicate this.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002177 * Return: 1 If xena is quiescence
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 * 0 If Xena is not quiescence
2179 */
2180
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002181static int verify_xena_quiescence(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002183 int mode;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002184 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002185 u64 val64 = readq(&bar0->adapter_status);
2186 mode = s2io_verify_pci_mode(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002188 if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002189 DBG_PRINT(ERR_DBG, "TDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002190 return 0;
2191 }
2192 if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002193 DBG_PRINT(ERR_DBG, "RDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002194 return 0;
2195 }
2196 if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002197 DBG_PRINT(ERR_DBG, "PFC is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002198 return 0;
2199 }
2200 if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002201 DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002202 return 0;
2203 }
2204 if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002205 DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002206 return 0;
2207 }
2208 if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002209 DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002210 return 0;
2211 }
2212 if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002213 DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002214 return 0;
2215 }
2216 if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002217 DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002218 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219 }
2220
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002221 /*
2222 * In PCI 33 mode, the P_PLL is not used, and therefore,
2223 * the the P_PLL_LOCK bit in the adapter_status register will
2224 * not be asserted.
2225 */
2226 if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002227 sp->device_type == XFRAME_II_DEVICE &&
2228 mode != PCI_MODE_PCI_33) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002229 DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002230 return 0;
2231 }
2232 if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002233 ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002234 DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002235 return 0;
2236 }
2237 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002238}
2239
2240/**
2241 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2242 * @sp: Pointer to device specifc structure
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002243 * Description :
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244 * New procedure to clear mac address reading problems on Alpha platforms
2245 *
2246 */
2247
Joe Perchesd44570e2009-08-24 17:29:44 +00002248static void fix_mac_address(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002250 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251 u64 val64;
2252 int i = 0;
2253
2254 while (fix_mac[i] != END_SIGN) {
2255 writeq(fix_mac[i++], &bar0->gpio_control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002256 udelay(10);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257 val64 = readq(&bar0->gpio_control);
2258 }
2259}
2260
2261/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002262 * start_nic - Turns the device on
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002264 * Description:
2265 * This function actually turns the device on. Before this function is
2266 * called,all Registers are configured from their reset states
2267 * and shared memory is allocated but the NIC is still quiescent. On
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268 * calling this function, the device interrupts are cleared and the NIC is
2269 * literally switched on by writing into the adapter control register.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002270 * Return Value:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 * SUCCESS on success and -1 on failure.
2272 */
2273
2274static int start_nic(struct s2io_nic *nic)
2275{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002276 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277 struct net_device *dev = nic->dev;
2278 register u64 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002279 u16 subid, i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002280 struct config_param *config = &nic->config;
2281 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282
2283 /* PRC Initialization and configuration */
2284 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002285 struct ring_info *ring = &mac_control->rings[i];
2286
Joe Perchesd44570e2009-08-24 17:29:44 +00002287 writeq((u64)ring->rx_blocks[0].block_dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288 &bar0->prc_rxd0_n[i]);
2289
2290 val64 = readq(&bar0->prc_ctrl_n[i]);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002291 if (nic->rxd_mode == RXD_MODE_1)
2292 val64 |= PRC_CTRL_RC_ENABLED;
2293 else
2294 val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
Ananda Raju863c11a2006-04-21 19:03:13 -04002295 if (nic->device_type == XFRAME_II_DEVICE)
2296 val64 |= PRC_CTRL_GROUP_READS;
2297 val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
2298 val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002299 writeq(val64, &bar0->prc_ctrl_n[i]);
2300 }
2301
Ananda Rajuda6971d2005-10-31 16:55:31 -05002302 if (nic->rxd_mode == RXD_MODE_3B) {
2303 /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
2304 val64 = readq(&bar0->rx_pa_cfg);
2305 val64 |= RX_PA_CFG_IGNORE_L2_ERR;
2306 writeq(val64, &bar0->rx_pa_cfg);
2307 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002309 if (vlan_tag_strip == 0) {
2310 val64 = readq(&bar0->rx_pa_cfg);
2311 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
2312 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03002313 nic->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002314 }
2315
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002316 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002317 * Enabling MC-RLDRAM. After enabling the device, we timeout
2318 * for around 100ms, which is approximately the time required
2319 * for the device to be ready for operation.
2320 */
2321 val64 = readq(&bar0->mc_rldram_mrs);
2322 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE;
2323 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
2324 val64 = readq(&bar0->mc_rldram_mrs);
2325
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002326 msleep(100); /* Delay by around 100 ms. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327
2328 /* Enabling ECC Protection. */
2329 val64 = readq(&bar0->adapter_control);
2330 val64 &= ~ADAPTER_ECC_EN;
2331 writeq(val64, &bar0->adapter_control);
2332
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002333 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002334 * Verify if the device is ready to be enabled, if so enable
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335 * it.
2336 */
2337 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002338 if (!verify_xena_quiescence(nic)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002339 DBG_PRINT(ERR_DBG, "%s: device is not ready, "
2340 "Adapter status reads: 0x%llx\n",
2341 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342 return FAILURE;
2343 }
2344
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002345 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346 * With some switches, link might be already up at this point.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002347 * Because of this weird behavior, when we enable laser,
2348 * we may not get link. We need to handle this. We cannot
2349 * figure out which switch is misbehaving. So we are forced to
2350 * make a global change.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351 */
2352
2353 /* Enabling Laser. */
2354 val64 = readq(&bar0->adapter_control);
2355 val64 |= ADAPTER_EOI_TX_ON;
2356 writeq(val64, &bar0->adapter_control);
2357
Ananda Rajuc92ca042006-04-21 19:18:03 -04002358 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
2359 /*
2360 * Dont see link state interrupts initally on some switches,
2361 * so directly scheduling the link state task here.
2362 */
2363 schedule_work(&nic->set_link_task);
2364 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365 /* SXE-002: Initialize link and activity LED */
2366 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07002367 if (((subid & 0xFF) >= 0x07) &&
2368 (nic->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369 val64 = readq(&bar0->gpio_control);
2370 val64 |= 0x0000800000000000ULL;
2371 writeq(val64, &bar0->gpio_control);
2372 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01002373 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374 }
2375
Linus Torvalds1da177e2005-04-16 15:20:36 -07002376 return SUCCESS;
2377}
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002378/**
2379 * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
2380 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002381static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
2382 struct TxD *txdlp, int get_off)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002383{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002384 struct s2io_nic *nic = fifo_data->nic;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002385 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002386 struct TxD *txds;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002387 u16 j, frg_cnt;
2388
2389 txds = txdlp;
Surjit Reang2fda0962008-01-24 02:08:59 -08002390 if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002391 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
2392 sizeof(u64), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002393 txds++;
2394 }
2395
Joe Perchesd44570e2009-08-24 17:29:44 +00002396 skb = (struct sk_buff *)((unsigned long)txds->Host_Control);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002397 if (!skb) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002398 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002399 return NULL;
2400 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002401 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
2402 skb->len - skb->data_len, PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002403 frg_cnt = skb_shinfo(skb)->nr_frags;
2404 if (frg_cnt) {
2405 txds++;
2406 for (j = 0; j < frg_cnt; j++, txds++) {
2407 skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
2408 if (!txds->Buffer_Pointer)
2409 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00002410 pci_unmap_page(nic->pdev,
2411 (dma_addr_t)txds->Buffer_Pointer,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002412 frag->size, PCI_DMA_TODEVICE);
2413 }
2414 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002415 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
2416 return skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002417}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002419/**
2420 * free_tx_buffers - Free all queued Tx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002422 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002423 * Free all queued Tx buffers.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002424 * Return Value: void
Joe Perchesd44570e2009-08-24 17:29:44 +00002425 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002426
2427static void free_tx_buffers(struct s2io_nic *nic)
2428{
2429 struct net_device *dev = nic->dev;
2430 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002431 struct TxD *txdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 int i, j;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002433 int cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002434 struct config_param *config = &nic->config;
2435 struct mac_info *mac_control = &nic->mac_control;
2436 struct stat_block *stats = mac_control->stats_info;
2437 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438
2439 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002440 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
2441 struct fifo_info *fifo = &mac_control->fifos[i];
Surjit Reang2fda0962008-01-24 02:08:59 -08002442 unsigned long flags;
Joe Perches13d866a2009-08-24 17:29:41 +00002443
2444 spin_lock_irqsave(&fifo->tx_lock, flags);
2445 for (j = 0; j < tx_cfg->fifo_len; j++) {
2446 txdp = (struct TxD *)fifo->list_info[j].list_virt_addr;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002447 skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
2448 if (skb) {
Joe Perchesffb5df62009-08-24 17:29:47 +00002449 swstats->mem_freed += skb->truesize;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002450 dev_kfree_skb(skb);
2451 cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002453 }
2454 DBG_PRINT(INTR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00002455 "%s: forcibly freeing %d skbs on FIFO%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002456 dev->name, cnt, i);
Joe Perches13d866a2009-08-24 17:29:41 +00002457 fifo->tx_curr_get_info.offset = 0;
2458 fifo->tx_curr_put_info.offset = 0;
2459 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460 }
2461}
2462
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002463/**
2464 * stop_nic - To stop the nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465 * @nic ; device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002466 * Description:
2467 * This function does exactly the opposite of what the start_nic()
Linus Torvalds1da177e2005-04-16 15:20:36 -07002468 * function does. This function is called to stop the device.
2469 * Return Value:
2470 * void.
2471 */
2472
2473static void stop_nic(struct s2io_nic *nic)
2474{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002475 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002476 register u64 val64 = 0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04002477 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478
2479 /* Disable all interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002480 en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS);
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07002481 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002482 interruptible |= TX_PIC_INTR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002483 en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
2484
Ananda Raju5d3213c2006-04-21 19:23:26 -04002485 /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
2486 val64 = readq(&bar0->adapter_control);
2487 val64 &= ~(ADAPTER_CNTL_EN);
2488 writeq(val64, &bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002489}
2490
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002491/**
2492 * fill_rx_buffers - Allocates the Rx side skbs
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002493 * @ring_info: per ring structure
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002494 * @from_card_up: If this is true, we will map the buffer to get
2495 * the dma address for buf0 and buf1 to give it to the card.
2496 * Else we will sync the already mapped buffer to give it to the card.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002497 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002498 * The function allocates Rx side skbs and puts the physical
2499 * address of these buffers into the RxD buffer pointers, so that the NIC
2500 * can DMA the received frame into these locations.
2501 * The NIC supports 3 receive modes, viz
2502 * 1. single buffer,
2503 * 2. three buffer and
2504 * 3. Five buffer modes.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002505 * Each mode defines how many fragments the received frame will be split
2506 * up into by the NIC. The frame is split into L3 header, L4 Header,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507 * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself
2508 * is split into 3 fragments. As of now only single buffer mode is
2509 * supported.
2510 * Return Value:
2511 * SUCCESS on success or an appropriate -ve value on failure.
2512 */
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002513static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
Joe Perchesd44570e2009-08-24 17:29:44 +00002514 int from_card_up)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002515{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002516 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002517 struct RxD_t *rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002518 int off, size, block_no, block_no1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002519 u32 alloc_tab = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002520 u32 alloc_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002521 u64 tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002522 struct buffAdd *ba;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002523 struct RxD_t *first_rxdp = NULL;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002524 u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002525 int rxd_index = 0;
Veena Parat6d517a22007-07-23 02:20:51 -04002526 struct RxD1 *rxdp1;
2527 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002528 struct swStat *swstats = &ring->nic->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002529
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002530 alloc_cnt = ring->pkt_cnt - ring->rx_bufs_left;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002532 block_no1 = ring->rx_curr_get_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002533 while (alloc_tab < alloc_cnt) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002534 block_no = ring->rx_curr_put_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002535
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002536 off = ring->rx_curr_put_info.offset;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002537
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002538 rxdp = ring->rx_blocks[block_no].rxds[off].virt_addr;
2539
2540 rxd_index = off + 1;
2541 if (block_no)
2542 rxd_index += (block_no * ring->rxd_count);
2543
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002544 if ((block_no == block_no1) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002545 (off == ring->rx_curr_get_info.offset) &&
2546 (rxdp->Host_Control)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002547 DBG_PRINT(INTR_DBG, "%s: Get and Put info equated\n",
2548 ring->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002549 goto end;
2550 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002551 if (off && (off == ring->rxd_count)) {
2552 ring->rx_curr_put_info.block_index++;
2553 if (ring->rx_curr_put_info.block_index ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002554 ring->block_count)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002555 ring->rx_curr_put_info.block_index = 0;
2556 block_no = ring->rx_curr_put_info.block_index;
2557 off = 0;
2558 ring->rx_curr_put_info.offset = off;
2559 rxdp = ring->rx_blocks[block_no].block_virt_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560 DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002561 ring->dev->name, rxdp);
2562
Linus Torvalds1da177e2005-04-16 15:20:36 -07002563 }
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002564
Ananda Rajuda6971d2005-10-31 16:55:31 -05002565 if ((rxdp->Control_1 & RXD_OWN_XENA) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002566 ((ring->rxd_mode == RXD_MODE_3B) &&
2567 (rxdp->Control_2 & s2BIT(0)))) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002568 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569 goto end;
2570 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002571 /* calculate size of skb based on ring mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002572 size = ring->mtu +
2573 HEADER_ETHERNET_II_802_3_SIZE +
2574 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002575 if (ring->rxd_mode == RXD_MODE_1)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002576 size += NET_IP_ALIGN;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002577 else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002578 size = ring->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002579
Ananda Rajuda6971d2005-10-31 16:55:31 -05002580 /* allocate skb */
2581 skb = dev_alloc_skb(size);
Joe Perchesd44570e2009-08-24 17:29:44 +00002582 if (!skb) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002583 DBG_PRINT(INFO_DBG, "%s: Could not allocate skb\n",
2584 ring->dev->name);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002585 if (first_rxdp) {
2586 wmb();
2587 first_rxdp->Control_1 |= RXD_OWN_XENA;
2588 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002589 swstats->mem_alloc_fail_cnt++;
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002590
Ananda Rajuda6971d2005-10-31 16:55:31 -05002591 return -ENOMEM ;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002593 swstats->mem_allocated += skb->truesize;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002594
2595 if (ring->rxd_mode == RXD_MODE_1) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002596 /* 1 buffer mode - normal operation mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002597 rxdp1 = (struct RxD1 *)rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002598 memset(rxdp, 0, sizeof(struct RxD1));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002599 skb_reserve(skb, NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002600 rxdp1->Buffer0_ptr =
2601 pci_map_single(ring->pdev, skb->data,
2602 size - NET_IP_ALIGN,
2603 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002604 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002605 rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002606 goto pci_map_failed;
2607
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002608 rxdp->Control_2 =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002609 SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002610 rxdp->Host_Control = (unsigned long)skb;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002611 } else if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002612 /*
Veena Parat6d517a22007-07-23 02:20:51 -04002613 * 2 buffer mode -
2614 * 2 buffer mode provides 128
Ananda Rajuda6971d2005-10-31 16:55:31 -05002615 * byte aligned receive buffers.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002616 */
2617
Joe Perchesd44570e2009-08-24 17:29:44 +00002618 rxdp3 = (struct RxD3 *)rxdp;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002619 /* save buffer pointers to avoid frequent dma mapping */
Veena Parat6d517a22007-07-23 02:20:51 -04002620 Buffer0_ptr = rxdp3->Buffer0_ptr;
2621 Buffer1_ptr = rxdp3->Buffer1_ptr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002622 memset(rxdp, 0, sizeof(struct RxD3));
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002623 /* restore the buffer pointers for dma sync*/
Veena Parat6d517a22007-07-23 02:20:51 -04002624 rxdp3->Buffer0_ptr = Buffer0_ptr;
2625 rxdp3->Buffer1_ptr = Buffer1_ptr;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002626
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002627 ba = &ring->ba[block_no][off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05002628 skb_reserve(skb, BUF0_LEN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002629 tmp = (u64)(unsigned long)skb->data;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002630 tmp += ALIGN_SIZE;
2631 tmp &= ~ALIGN_SIZE;
2632 skb->data = (void *) (unsigned long)tmp;
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -07002633 skb_reset_tail_pointer(skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002634
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002635 if (from_card_up) {
Veena Parat6d517a22007-07-23 02:20:51 -04002636 rxdp3->Buffer0_ptr =
Joe Perchesd44570e2009-08-24 17:29:44 +00002637 pci_map_single(ring->pdev, ba->ba_0,
2638 BUF0_LEN,
2639 PCI_DMA_FROMDEVICE);
2640 if (pci_dma_mapping_error(nic->pdev,
2641 rxdp3->Buffer0_ptr))
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002642 goto pci_map_failed;
2643 } else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002644 pci_dma_sync_single_for_device(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002645 (dma_addr_t)rxdp3->Buffer0_ptr,
2646 BUF0_LEN,
2647 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002648
Ananda Rajuda6971d2005-10-31 16:55:31 -05002649 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002650 if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002651 /* Two buffer mode */
2652
2653 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002654 * Buffer2 will have L3/L4 header plus
Ananda Rajuda6971d2005-10-31 16:55:31 -05002655 * L4 payload
2656 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002657 rxdp3->Buffer2_ptr = pci_map_single(ring->pdev,
2658 skb->data,
2659 ring->mtu + 4,
2660 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002661
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002662 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002663 rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002664 goto pci_map_failed;
2665
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002666 if (from_card_up) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002667 rxdp3->Buffer1_ptr =
2668 pci_map_single(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002669 ba->ba_1,
2670 BUF1_LEN,
2671 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002672
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002673 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002674 rxdp3->Buffer1_ptr)) {
2675 pci_unmap_single(ring->pdev,
2676 (dma_addr_t)(unsigned long)
2677 skb->data,
2678 ring->mtu + 4,
2679 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002680 goto pci_map_failed;
2681 }
Ananda Raju75c30b12006-07-24 19:55:09 -04002682 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002683 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
2684 rxdp->Control_2 |= SET_BUFFER2_SIZE_3
Joe Perchesd44570e2009-08-24 17:29:44 +00002685 (ring->mtu + 4);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002686 }
Jiri Slabyb7b5a122007-10-18 23:40:29 -07002687 rxdp->Control_2 |= s2BIT(0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002688 rxdp->Host_Control = (unsigned long) (skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002689 }
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002690 if (alloc_tab & ((1 << rxsync_frequency) - 1))
2691 rxdp->Control_1 |= RXD_OWN_XENA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002692 off++;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002693 if (off == (ring->rxd_count + 1))
Ananda Rajuda6971d2005-10-31 16:55:31 -05002694 off = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002695 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002696
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002697 rxdp->Control_2 |= SET_RXD_MARKER;
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002698 if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) {
2699 if (first_rxdp) {
2700 wmb();
2701 first_rxdp->Control_1 |= RXD_OWN_XENA;
2702 }
2703 first_rxdp = rxdp;
2704 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002705 ring->rx_bufs_left += 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002706 alloc_tab++;
2707 }
2708
Joe Perchesd44570e2009-08-24 17:29:44 +00002709end:
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002710 /* Transfer ownership of first descriptor to adapter just before
2711 * exiting. Before that, use memory barrier so that ownership
2712 * and other fields are seen by adapter correctly.
2713 */
2714 if (first_rxdp) {
2715 wmb();
2716 first_rxdp->Control_1 |= RXD_OWN_XENA;
2717 }
2718
Linus Torvalds1da177e2005-04-16 15:20:36 -07002719 return SUCCESS;
Joe Perchesd44570e2009-08-24 17:29:44 +00002720
Veena Parat491abf22007-07-23 02:37:14 -04002721pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00002722 swstats->pci_map_fail_cnt++;
2723 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04002724 dev_kfree_skb_irq(skb);
2725 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002726}
2727
Ananda Rajuda6971d2005-10-31 16:55:31 -05002728static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
2729{
2730 struct net_device *dev = sp->dev;
2731 int j;
2732 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002733 struct RxD_t *rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002734 struct buffAdd *ba;
Veena Parat6d517a22007-07-23 02:20:51 -04002735 struct RxD1 *rxdp1;
2736 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002737 struct mac_info *mac_control = &sp->mac_control;
2738 struct stat_block *stats = mac_control->stats_info;
2739 struct swStat *swstats = &stats->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002740
Ananda Rajuda6971d2005-10-31 16:55:31 -05002741 for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
2742 rxdp = mac_control->rings[ring_no].
Joe Perchesd44570e2009-08-24 17:29:44 +00002743 rx_blocks[blk].rxds[j].virt_addr;
2744 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
2745 if (!skb)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002746 continue;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002747 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002748 rxdp1 = (struct RxD1 *)rxdp;
2749 pci_unmap_single(sp->pdev,
2750 (dma_addr_t)rxdp1->Buffer0_ptr,
2751 dev->mtu +
2752 HEADER_ETHERNET_II_802_3_SIZE +
2753 HEADER_802_2_SIZE + HEADER_SNAP_SIZE,
2754 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002755 memset(rxdp, 0, sizeof(struct RxD1));
Joe Perchesd44570e2009-08-24 17:29:44 +00002756 } else if (sp->rxd_mode == RXD_MODE_3B) {
2757 rxdp3 = (struct RxD3 *)rxdp;
2758 ba = &mac_control->rings[ring_no].ba[blk][j];
2759 pci_unmap_single(sp->pdev,
2760 (dma_addr_t)rxdp3->Buffer0_ptr,
2761 BUF0_LEN,
2762 PCI_DMA_FROMDEVICE);
2763 pci_unmap_single(sp->pdev,
2764 (dma_addr_t)rxdp3->Buffer1_ptr,
2765 BUF1_LEN,
2766 PCI_DMA_FROMDEVICE);
2767 pci_unmap_single(sp->pdev,
2768 (dma_addr_t)rxdp3->Buffer2_ptr,
2769 dev->mtu + 4,
2770 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002771 memset(rxdp, 0, sizeof(struct RxD3));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002772 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002773 swstats->mem_freed += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002774 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002775 mac_control->rings[ring_no].rx_bufs_left -= 1;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002776 }
2777}
2778
Linus Torvalds1da177e2005-04-16 15:20:36 -07002779/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002780 * free_rx_buffers - Frees all Rx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002781 * @sp: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002782 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002783 * This function will free all Rx buffers allocated by host.
2784 * Return Value:
2785 * NONE.
2786 */
2787
2788static void free_rx_buffers(struct s2io_nic *sp)
2789{
2790 struct net_device *dev = sp->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002791 int i, blk = 0, buf_cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002792 struct config_param *config = &sp->config;
2793 struct mac_info *mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002794
2795 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002796 struct ring_info *ring = &mac_control->rings[i];
2797
Ananda Rajuda6971d2005-10-31 16:55:31 -05002798 for (blk = 0; blk < rx_ring_sz[i]; blk++)
Joe Perchesd44570e2009-08-24 17:29:44 +00002799 free_rxd_blk(sp, i, blk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002800
Joe Perches13d866a2009-08-24 17:29:41 +00002801 ring->rx_curr_put_info.block_index = 0;
2802 ring->rx_curr_get_info.block_index = 0;
2803 ring->rx_curr_put_info.offset = 0;
2804 ring->rx_curr_get_info.offset = 0;
2805 ring->rx_bufs_left = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00002806 DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002807 dev->name, buf_cnt, i);
2808 }
2809}
2810
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002811static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring)
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002812{
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002813 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002814 DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n",
2815 ring->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002816 }
2817 return 0;
2818}
2819
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820/**
2821 * s2io_poll - Rx interrupt handler for NAPI support
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002822 * @napi : pointer to the napi structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002823 * @budget : The number of packets that were budgeted to be processed
Linus Torvalds1da177e2005-04-16 15:20:36 -07002824 * during one pass through the 'Poll" function.
2825 * Description:
2826 * Comes into picture only if NAPI support has been incorporated. It does
2827 * the same thing that rx_intr_handler does, but not in a interrupt context
2828 * also It will process only a given number of packets.
2829 * Return value:
2830 * 0 on success and 1 if there are No Rx packets to be processed.
2831 */
2832
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002833static int s2io_poll_msix(struct napi_struct *napi, int budget)
2834{
2835 struct ring_info *ring = container_of(napi, struct ring_info, napi);
2836 struct net_device *dev = ring->dev;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002837 int pkts_processed = 0;
Al Viro1a79d1c2008-06-02 10:59:02 +01002838 u8 __iomem *addr = NULL;
2839 u8 val8 = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08002840 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002841 struct XENA_dev_config __iomem *bar0 = nic->bar0;
2842 int budget_org = budget;
2843
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002844 if (unlikely(!is_s2io_card_up(nic)))
2845 return 0;
2846
2847 pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002848 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002849
2850 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002851 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002852 /*Re Enable MSI-Rx Vector*/
Al Viro1a79d1c2008-06-02 10:59:02 +01002853 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002854 addr += 7 - ring->ring_no;
2855 val8 = (ring->ring_no == 0) ? 0x3f : 0xbf;
2856 writeb(val8, addr);
2857 val8 = readb(addr);
2858 }
2859 return pkts_processed;
2860}
Joe Perchesd44570e2009-08-24 17:29:44 +00002861
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002862static int s2io_poll_inta(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002863{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002864 struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002865 int pkts_processed = 0;
2866 int ring_pkts_processed, i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002867 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002868 int budget_org = budget;
Joe Perchesffb5df62009-08-24 17:29:47 +00002869 struct config_param *config = &nic->config;
2870 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002871
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002872 if (unlikely(!is_s2io_card_up(nic)))
2873 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002874
2875 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002876 struct ring_info *ring = &mac_control->rings[i];
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002877 ring_pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002878 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002879 pkts_processed += ring_pkts_processed;
2880 budget -= ring_pkts_processed;
2881 if (budget <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002882 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002883 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002884 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002885 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002886 /* Re enable the Rx interrupts for the ring */
2887 writeq(0, &bar0->rx_traffic_mask);
2888 readl(&bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002889 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002890 return pkts_processed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002891}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002892
Ananda Rajub41477f2006-07-24 19:52:49 -04002893#ifdef CONFIG_NET_POLL_CONTROLLER
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002894/**
Ananda Rajub41477f2006-07-24 19:52:49 -04002895 * s2io_netpoll - netpoll event handler entry point
Brian Haley612eff02006-06-15 14:36:36 -04002896 * @dev : pointer to the device structure.
2897 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04002898 * This function will be called by upper layer to check for events on the
2899 * interface in situations where interrupts are disabled. It is used for
2900 * specific in-kernel networking tasks, such as remote consoles and kernel
2901 * debugging over the network (example netdump in RedHat).
Brian Haley612eff02006-06-15 14:36:36 -04002902 */
Brian Haley612eff02006-06-15 14:36:36 -04002903static void s2io_netpoll(struct net_device *dev)
2904{
Wang Chen4cf16532008-11-12 23:38:14 -08002905 struct s2io_nic *nic = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002906 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ananda Rajub41477f2006-07-24 19:52:49 -04002907 u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
Brian Haley612eff02006-06-15 14:36:36 -04002908 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002909 struct config_param *config = &nic->config;
2910 struct mac_info *mac_control = &nic->mac_control;
Brian Haley612eff02006-06-15 14:36:36 -04002911
Linas Vepstasd796fdb2007-05-14 18:37:30 -05002912 if (pci_channel_offline(nic->pdev))
2913 return;
2914
Brian Haley612eff02006-06-15 14:36:36 -04002915 disable_irq(dev->irq);
2916
Brian Haley612eff02006-06-15 14:36:36 -04002917 writeq(val64, &bar0->rx_traffic_int);
Ananda Rajub41477f2006-07-24 19:52:49 -04002918 writeq(val64, &bar0->tx_traffic_int);
Brian Haley612eff02006-06-15 14:36:36 -04002919
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002920 /* we need to free up the transmitted skbufs or else netpoll will
Ananda Rajub41477f2006-07-24 19:52:49 -04002921 * run out of skbs and will fail and eventually netpoll application such
2922 * as netdump will fail.
2923 */
2924 for (i = 0; i < config->tx_fifo_num; i++)
2925 tx_intr_handler(&mac_control->fifos[i]);
2926
2927 /* check for received packet and indicate up to network */
Joe Perches13d866a2009-08-24 17:29:41 +00002928 for (i = 0; i < config->rx_ring_num; i++) {
2929 struct ring_info *ring = &mac_control->rings[i];
2930
2931 rx_intr_handler(ring, 0);
2932 }
Brian Haley612eff02006-06-15 14:36:36 -04002933
2934 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002935 struct ring_info *ring = &mac_control->rings[i];
2936
2937 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002938 DBG_PRINT(INFO_DBG,
2939 "%s: Out of memory in Rx Netpoll!!\n",
2940 dev->name);
Brian Haley612eff02006-06-15 14:36:36 -04002941 break;
2942 }
2943 }
Brian Haley612eff02006-06-15 14:36:36 -04002944 enable_irq(dev->irq);
2945 return;
2946}
2947#endif
2948
2949/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950 * rx_intr_handler - Rx interrupt handler
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002951 * @ring_info: per ring structure.
2952 * @budget: budget for napi processing.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002953 * Description:
2954 * If the interrupt is because of a received frame or if the
Linus Torvalds1da177e2005-04-16 15:20:36 -07002955 * receive ring contains fresh as yet un-processed frames,this function is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002956 * called. It picks out the RxD at which place the last Rx processing had
2957 * stopped and sends the skb to the OSM's Rx handler and then increments
Linus Torvalds1da177e2005-04-16 15:20:36 -07002958 * the offset.
2959 * Return Value:
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002960 * No. of napi packets processed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002961 */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002962static int rx_intr_handler(struct ring_info *ring_data, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002963{
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002964 int get_block, put_block;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002965 struct rx_curr_get_info get_info, put_info;
2966 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002967 struct sk_buff *skb;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002968 int pkt_cnt = 0, napi_pkts = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002969 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00002970 struct RxD1 *rxdp1;
2971 struct RxD3 *rxdp3;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002972
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002973 get_info = ring_data->rx_curr_get_info;
2974 get_block = get_info.block_index;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002975 memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002976 put_block = put_info.block_index;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002977 rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002978
Ananda Rajuda6971d2005-10-31 16:55:31 -05002979 while (RXD_IS_UP2DT(rxdp)) {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002980 /*
2981 * If your are next to put index then it's
2982 * FIFO full condition
2983 */
Ananda Rajuda6971d2005-10-31 16:55:31 -05002984 if ((get_block == put_block) &&
2985 (get_info.offset + 1) == put_info.offset) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002986 DBG_PRINT(INTR_DBG, "%s: Ring Full\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00002987 ring_data->dev->name);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002988 break;
2989 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002990 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002991 if (skb == NULL) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002992 DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002993 ring_data->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002994 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002995 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002996 if (ring_data->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002997 rxdp1 = (struct RxD1 *)rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002998 pci_unmap_single(ring_data->pdev, (dma_addr_t)
Joe Perchesd44570e2009-08-24 17:29:44 +00002999 rxdp1->Buffer0_ptr,
3000 ring_data->mtu +
3001 HEADER_ETHERNET_II_802_3_SIZE +
3002 HEADER_802_2_SIZE +
3003 HEADER_SNAP_SIZE,
3004 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003005 } else if (ring_data->rxd_mode == RXD_MODE_3B) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003006 rxdp3 = (struct RxD3 *)rxdp;
3007 pci_dma_sync_single_for_cpu(ring_data->pdev,
3008 (dma_addr_t)rxdp3->Buffer0_ptr,
3009 BUF0_LEN,
3010 PCI_DMA_FROMDEVICE);
3011 pci_unmap_single(ring_data->pdev,
3012 (dma_addr_t)rxdp3->Buffer2_ptr,
3013 ring_data->mtu + 4,
3014 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05003015 }
Ananda Raju863c11a2006-04-21 19:03:13 -04003016 prefetch(skb->data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003017 rx_osm_handler(ring_data, rxdp);
3018 get_info.offset++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003019 ring_data->rx_curr_get_info.offset = get_info.offset;
3020 rxdp = ring_data->rx_blocks[get_block].
Joe Perchesd44570e2009-08-24 17:29:44 +00003021 rxds[get_info.offset].virt_addr;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003022 if (get_info.offset == rxd_count[ring_data->rxd_mode]) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003023 get_info.offset = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003024 ring_data->rx_curr_get_info.offset = get_info.offset;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003025 get_block++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05003026 if (get_block == ring_data->block_count)
3027 get_block = 0;
3028 ring_data->rx_curr_get_info.block_index = get_block;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003029 rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
3030 }
3031
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003032 if (ring_data->nic->config.napi) {
3033 budget--;
3034 napi_pkts++;
3035 if (!budget)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003036 break;
3037 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003038 pkt_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003039 if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts))
3040 break;
3041 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003042 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003043 /* Clear all LRO sessions before exiting */
Joe Perchesd44570e2009-08-24 17:29:44 +00003044 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003045 struct lro *lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003046 if (lro->in_use) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04003047 update_L3L4_header(ring_data->nic, lro);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05003048 queue_rx_frame(lro->parent, lro->vlan_tag);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05003049 clear_lro_session(lro);
3050 }
3051 }
3052 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003053 return napi_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003054}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003055
3056/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003057 * tx_intr_handler - Transmit interrupt handler
3058 * @nic : device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003059 * Description:
3060 * If an interrupt was raised to indicate DMA complete of the
3061 * Tx packet, this function is called. It identifies the last TxD
3062 * whose buffer was freed and frees all skbs whose data have already
Linus Torvalds1da177e2005-04-16 15:20:36 -07003063 * DMA'ed into the NICs internal memory.
3064 * Return Value:
3065 * NONE
3066 */
3067
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003068static void tx_intr_handler(struct fifo_info *fifo_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003069{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003070 struct s2io_nic *nic = fifo_data->nic;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003071 struct tx_curr_get_info get_info, put_info;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003072 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003073 struct TxD *txdlp;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003074 int pkt_cnt = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08003075 unsigned long flags = 0;
Olaf Heringf9046eb2007-06-19 22:41:10 +02003076 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00003077 struct stat_block *stats = nic->mac_control.stats_info;
3078 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003079
Surjit Reang2fda0962008-01-24 02:08:59 -08003080 if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags))
Joe Perchesd44570e2009-08-24 17:29:44 +00003081 return;
Surjit Reang2fda0962008-01-24 02:08:59 -08003082
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003083 get_info = fifo_data->tx_curr_get_info;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003084 memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info));
Joe Perchesd44570e2009-08-24 17:29:44 +00003085 txdlp = (struct TxD *)
3086 fifo_data->list_info[get_info.offset].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003087 while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) &&
3088 (get_info.offset != put_info.offset) &&
3089 (txdlp->Host_Control)) {
3090 /* Check for TxD errors */
3091 if (txdlp->Control_1 & TXD_T_CODE) {
3092 unsigned long long err;
3093 err = txdlp->Control_1 & TXD_T_CODE;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003094 if (err & 0x1) {
Joe Perchesffb5df62009-08-24 17:29:47 +00003095 swstats->parity_err_cnt++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003096 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003097
3098 /* update t_code statistics */
Olaf Heringf9046eb2007-06-19 22:41:10 +02003099 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00003100 switch (err_mask) {
3101 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00003102 swstats->tx_buf_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003103 break;
3104
Joe Perchesd44570e2009-08-24 17:29:44 +00003105 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00003106 swstats->tx_desc_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003107 break;
3108
Joe Perchesd44570e2009-08-24 17:29:44 +00003109 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00003110 swstats->tx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003111 break;
3112
Joe Perchesd44570e2009-08-24 17:29:44 +00003113 case 10:
Joe Perchesffb5df62009-08-24 17:29:47 +00003114 swstats->tx_link_loss_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003115 break;
3116
Joe Perchesd44570e2009-08-24 17:29:44 +00003117 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00003118 swstats->tx_list_proc_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003119 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00003120 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003121 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003122
Ananda Rajufed5ecc2005-11-14 15:25:08 -05003123 skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003124 if (skb == NULL) {
Surjit Reang2fda0962008-01-24 02:08:59 -08003125 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Joe Perches9e39f7c2009-08-25 08:52:00 +00003126 DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n",
3127 __func__);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003128 return;
3129 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003130 pkt_cnt++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003131
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003132 /* Updating the statistics block */
Breno Leitaodc56e632008-07-22 16:27:20 -03003133 nic->dev->stats.tx_bytes += skb->len;
Joe Perchesffb5df62009-08-24 17:29:47 +00003134 swstats->mem_freed += skb->truesize;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003135 dev_kfree_skb_irq(skb);
3136
3137 get_info.offset++;
Ananda Raju863c11a2006-04-21 19:03:13 -04003138 if (get_info.offset == get_info.fifo_len + 1)
3139 get_info.offset = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00003140 txdlp = (struct TxD *)
3141 fifo_data->list_info[get_info.offset].list_virt_addr;
3142 fifo_data->tx_curr_get_info.offset = get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003143 }
3144
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003145 s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq);
Surjit Reang2fda0962008-01-24 02:08:59 -08003146
3147 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003148}
3149
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003150/**
Ananda Rajubd1034f2006-04-21 19:20:22 -04003151 * s2io_mdio_write - Function to write in to MDIO registers
3152 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3153 * @addr : address value
3154 * @value : data value
3155 * @dev : pointer to net_device structure
3156 * Description:
3157 * This function is used to write values to the MDIO registers
3158 * NONE
3159 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003160static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value,
3161 struct net_device *dev)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003162{
Joe Perchesd44570e2009-08-24 17:29:44 +00003163 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08003164 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003165 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003166
Joe Perchesd44570e2009-08-24 17:29:44 +00003167 /* address transaction */
3168 val64 = MDIO_MMD_INDX_ADDR(addr) |
3169 MDIO_MMD_DEV_ADDR(mmd_type) |
3170 MDIO_MMS_PRT_ADDR(0x0);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003171 writeq(val64, &bar0->mdio_control);
3172 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3173 writeq(val64, &bar0->mdio_control);
3174 udelay(100);
3175
Joe Perchesd44570e2009-08-24 17:29:44 +00003176 /* Data transaction */
3177 val64 = MDIO_MMD_INDX_ADDR(addr) |
3178 MDIO_MMD_DEV_ADDR(mmd_type) |
3179 MDIO_MMS_PRT_ADDR(0x0) |
3180 MDIO_MDIO_DATA(value) |
3181 MDIO_OP(MDIO_OP_WRITE_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003182 writeq(val64, &bar0->mdio_control);
3183 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3184 writeq(val64, &bar0->mdio_control);
3185 udelay(100);
3186
Joe Perchesd44570e2009-08-24 17:29:44 +00003187 val64 = MDIO_MMD_INDX_ADDR(addr) |
3188 MDIO_MMD_DEV_ADDR(mmd_type) |
3189 MDIO_MMS_PRT_ADDR(0x0) |
3190 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003191 writeq(val64, &bar0->mdio_control);
3192 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3193 writeq(val64, &bar0->mdio_control);
3194 udelay(100);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003195}
3196
3197/**
3198 * s2io_mdio_read - Function to write in to MDIO registers
3199 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3200 * @addr : address value
3201 * @dev : pointer to net_device structure
3202 * Description:
3203 * This function is used to read values to the MDIO registers
3204 * NONE
3205 */
3206static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
3207{
3208 u64 val64 = 0x0;
3209 u64 rval64 = 0x0;
Wang Chen4cf16532008-11-12 23:38:14 -08003210 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003211 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003212
3213 /* address transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003214 val64 = val64 | (MDIO_MMD_INDX_ADDR(addr)
3215 | MDIO_MMD_DEV_ADDR(mmd_type)
3216 | MDIO_MMS_PRT_ADDR(0x0));
Ananda Rajubd1034f2006-04-21 19:20:22 -04003217 writeq(val64, &bar0->mdio_control);
3218 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3219 writeq(val64, &bar0->mdio_control);
3220 udelay(100);
3221
3222 /* Data transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003223 val64 = MDIO_MMD_INDX_ADDR(addr) |
3224 MDIO_MMD_DEV_ADDR(mmd_type) |
3225 MDIO_MMS_PRT_ADDR(0x0) |
3226 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003227 writeq(val64, &bar0->mdio_control);
3228 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3229 writeq(val64, &bar0->mdio_control);
3230 udelay(100);
3231
3232 /* Read the value from regs */
3233 rval64 = readq(&bar0->mdio_control);
3234 rval64 = rval64 & 0xFFFF0000;
3235 rval64 = rval64 >> 16;
3236 return rval64;
3237}
Joe Perchesd44570e2009-08-24 17:29:44 +00003238
Ananda Rajubd1034f2006-04-21 19:20:22 -04003239/**
3240 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
Uwe Kleine-Königfbfecd32009-10-28 20:11:04 +01003241 * @counter : counter value to be updated
Ananda Rajubd1034f2006-04-21 19:20:22 -04003242 * @flag : flag to indicate the status
3243 * @type : counter type
3244 * Description:
3245 * This function is to check the status of the xpak counters value
3246 * NONE
3247 */
3248
Joe Perchesd44570e2009-08-24 17:29:44 +00003249static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index,
3250 u16 flag, u16 type)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003251{
3252 u64 mask = 0x3;
3253 u64 val64;
3254 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00003255 for (i = 0; i < index; i++)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003256 mask = mask << 0x2;
3257
Joe Perchesd44570e2009-08-24 17:29:44 +00003258 if (flag > 0) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003259 *counter = *counter + 1;
3260 val64 = *regs_stat & mask;
3261 val64 = val64 >> (index * 0x2);
3262 val64 = val64 + 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00003263 if (val64 == 3) {
3264 switch (type) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003265 case 1:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003266 DBG_PRINT(ERR_DBG,
3267 "Take Xframe NIC out of service.\n");
3268 DBG_PRINT(ERR_DBG,
3269"Excessive temperatures may result in premature transceiver failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003270 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003271 case 2:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003272 DBG_PRINT(ERR_DBG,
3273 "Take Xframe NIC out of service.\n");
3274 DBG_PRINT(ERR_DBG,
3275"Excessive bias currents may indicate imminent laser diode failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003276 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003277 case 3:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003278 DBG_PRINT(ERR_DBG,
3279 "Take Xframe NIC out of service.\n");
3280 DBG_PRINT(ERR_DBG,
3281"Excessive laser output power may saturate far-end receiver.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003282 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003283 default:
Joe Perchesd44570e2009-08-24 17:29:44 +00003284 DBG_PRINT(ERR_DBG,
3285 "Incorrect XPAK Alarm type\n");
Ananda Rajubd1034f2006-04-21 19:20:22 -04003286 }
3287 val64 = 0x0;
3288 }
3289 val64 = val64 << (index * 0x2);
3290 *regs_stat = (*regs_stat & (~mask)) | (val64);
3291
3292 } else {
3293 *regs_stat = *regs_stat & (~mask);
3294 }
3295}
3296
3297/**
3298 * s2io_updt_xpak_counter - Function to update the xpak counters
3299 * @dev : pointer to net_device struct
3300 * Description:
3301 * This function is to upate the status of the xpak counters value
3302 * NONE
3303 */
3304static void s2io_updt_xpak_counter(struct net_device *dev)
3305{
3306 u16 flag = 0x0;
3307 u16 type = 0x0;
3308 u16 val16 = 0x0;
3309 u64 val64 = 0x0;
3310 u64 addr = 0x0;
3311
Wang Chen4cf16532008-11-12 23:38:14 -08003312 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003313 struct stat_block *stats = sp->mac_control.stats_info;
3314 struct xpakStat *xstats = &stats->xpak_stat;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003315
3316 /* Check the communication with the MDIO slave */
Ben Hutchings40239392009-04-29 08:13:29 +00003317 addr = MDIO_CTRL1;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003318 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003319 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00003320 if ((val64 == 0xFFFF) || (val64 == 0x0000)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003321 DBG_PRINT(ERR_DBG,
3322 "ERR: MDIO slave access failed - Returned %llx\n",
3323 (unsigned long long)val64);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003324 return;
3325 }
3326
Ben Hutchings40239392009-04-29 08:13:29 +00003327 /* Check for the expected value of control reg 1 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003328 if (val64 != MDIO_CTRL1_SPEED10G) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003329 DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "
3330 "Returned: %llx- Expected: 0x%x\n",
Ben Hutchings40239392009-04-29 08:13:29 +00003331 (unsigned long long)val64, MDIO_CTRL1_SPEED10G);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003332 return;
3333 }
3334
3335 /* Loading the DOM register to MDIO register */
3336 addr = 0xA100;
Ben Hutchings40239392009-04-29 08:13:29 +00003337 s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev);
3338 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003339
3340 /* Reading the Alarm flags */
3341 addr = 0xA070;
3342 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003343 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003344
3345 flag = CHECKBIT(val64, 0x7);
3346 type = 1;
Joe Perchesffb5df62009-08-24 17:29:47 +00003347 s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high,
3348 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003349 0x0, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003350
Joe Perchesd44570e2009-08-24 17:29:44 +00003351 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003352 xstats->alarm_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003353
3354 flag = CHECKBIT(val64, 0x3);
3355 type = 2;
Joe Perchesffb5df62009-08-24 17:29:47 +00003356 s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high,
3357 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003358 0x2, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003359
Joe Perchesd44570e2009-08-24 17:29:44 +00003360 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003361 xstats->alarm_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003362
3363 flag = CHECKBIT(val64, 0x1);
3364 type = 3;
Joe Perchesffb5df62009-08-24 17:29:47 +00003365 s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high,
3366 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003367 0x4, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003368
Joe Perchesd44570e2009-08-24 17:29:44 +00003369 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003370 xstats->alarm_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003371
3372 /* Reading the Warning flags */
3373 addr = 0xA074;
3374 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003375 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003376
Joe Perchesd44570e2009-08-24 17:29:44 +00003377 if (CHECKBIT(val64, 0x7))
Joe Perchesffb5df62009-08-24 17:29:47 +00003378 xstats->warn_transceiver_temp_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003379
Joe Perchesd44570e2009-08-24 17:29:44 +00003380 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003381 xstats->warn_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003382
Joe Perchesd44570e2009-08-24 17:29:44 +00003383 if (CHECKBIT(val64, 0x3))
Joe Perchesffb5df62009-08-24 17:29:47 +00003384 xstats->warn_laser_bias_current_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003385
Joe Perchesd44570e2009-08-24 17:29:44 +00003386 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003387 xstats->warn_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003388
Joe Perchesd44570e2009-08-24 17:29:44 +00003389 if (CHECKBIT(val64, 0x1))
Joe Perchesffb5df62009-08-24 17:29:47 +00003390 xstats->warn_laser_output_power_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003391
Joe Perchesd44570e2009-08-24 17:29:44 +00003392 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003393 xstats->warn_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003394}
3395
3396/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003397 * wait_for_cmd_complete - waits for a command to complete.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003398 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07003399 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003400 * Description: Function that waits for a command to Write into RMAC
3401 * ADDR DATA registers to be completed and returns either success or
3402 * error depending on whether the command was complete or not.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003403 * Return value:
3404 * SUCCESS on success and FAILURE on failure.
3405 */
3406
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003407static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
Joe Perchesd44570e2009-08-24 17:29:44 +00003408 int bit_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003409{
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003410 int ret = FAILURE, cnt = 0, delay = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003411 u64 val64;
3412
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003413 if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET))
3414 return FAILURE;
3415
3416 do {
Ananda Rajuc92ca042006-04-21 19:18:03 -04003417 val64 = readq(addr);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003418 if (bit_state == S2IO_BIT_RESET) {
3419 if (!(val64 & busy_bit)) {
3420 ret = SUCCESS;
3421 break;
3422 }
3423 } else {
Ram Vepa2d146eb2010-01-19 12:36:20 -08003424 if (val64 & busy_bit) {
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003425 ret = SUCCESS;
3426 break;
3427 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003428 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003429
Joe Perchesd44570e2009-08-24 17:29:44 +00003430 if (in_interrupt())
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003431 mdelay(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003432 else
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003433 msleep(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003434
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003435 if (++cnt >= 10)
3436 delay = 50;
3437 } while (cnt < 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003438 return ret;
3439}
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003440/*
3441 * check_pci_device_id - Checks if the device id is supported
3442 * @id : device id
3443 * Description: Function to check if the pci device id is supported by driver.
3444 * Return value: Actual device id if supported else PCI_ANY_ID
3445 */
3446static u16 check_pci_device_id(u16 id)
3447{
3448 switch (id) {
3449 case PCI_DEVICE_ID_HERC_WIN:
3450 case PCI_DEVICE_ID_HERC_UNI:
3451 return XFRAME_II_DEVICE;
3452 case PCI_DEVICE_ID_S2IO_UNI:
3453 case PCI_DEVICE_ID_S2IO_WIN:
3454 return XFRAME_I_DEVICE;
3455 default:
3456 return PCI_ANY_ID;
3457 }
3458}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003459
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003460/**
3461 * s2io_reset - Resets the card.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003462 * @sp : private member of the device structure.
3463 * Description: Function to Reset the card. This function then also
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003464 * restores the previously saved PCI configuration space registers as
Linus Torvalds1da177e2005-04-16 15:20:36 -07003465 * the card reset also resets the configuration space.
3466 * Return value:
3467 * void.
3468 */
3469
Joe Perchesd44570e2009-08-24 17:29:44 +00003470static void s2io_reset(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003471{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003472 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003473 u64 val64;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003474 u16 subid, pci_cmd;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003475 int i;
3476 u16 val16;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003477 unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt;
3478 unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt;
Joe Perchesffb5df62009-08-24 17:29:47 +00003479 struct stat_block *stats;
3480 struct swStat *swstats;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003481
Joe Perches9e39f7c2009-08-25 08:52:00 +00003482 DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003483 __func__, sp->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003484
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003485 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07003486 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003487
Linus Torvalds1da177e2005-04-16 15:20:36 -07003488 val64 = SW_RESET_ALL;
3489 writeq(val64, &bar0->sw_reset);
Joe Perchesd44570e2009-08-24 17:29:44 +00003490 if (strstr(sp->product_name, "CX4"))
Ananda Rajuc92ca042006-04-21 19:18:03 -04003491 msleep(750);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003492 msleep(250);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003493 for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
3494
3495 /* Restore the PCI state saved during initialization. */
3496 pci_restore_state(sp->pdev);
Breno Leitaob8a623b2009-11-10 09:44:23 +00003497 pci_save_state(sp->pdev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003498 pci_read_config_word(sp->pdev, 0x2, &val16);
3499 if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
3500 break;
3501 msleep(200);
3502 }
3503
Joe Perchesd44570e2009-08-24 17:29:44 +00003504 if (check_pci_device_id(val16) == (u16)PCI_ANY_ID)
3505 DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003506
3507 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
3508
3509 s2io_init_pci(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003510
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003511 /* Set swapper to enable I/O register access */
3512 s2io_set_swapper(sp);
3513
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003514 /* restore mac_addr entries */
3515 do_s2io_restore_unicast_mc(sp);
3516
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003517 /* Restore the MSIX table entries from local variables */
3518 restore_xmsi_data(sp);
3519
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003520 /* Clear certain PCI/PCI-X fields after reset */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003521 if (sp->device_type == XFRAME_II_DEVICE) {
Ananda Rajub41477f2006-07-24 19:52:49 -04003522 /* Clear "detected parity error" bit */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003523 pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003524
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003525 /* Clearing PCIX Ecc status register */
3526 pci_write_config_dword(sp->pdev, 0x68, 0x7C);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003527
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003528 /* Clearing PCI_STATUS error reflected here */
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003529 writeq(s2BIT(62), &bar0->txpic_int_reg);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003530 }
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003531
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003532 /* Reset device statistics maintained by OS */
Joe Perchesd44570e2009-08-24 17:29:44 +00003533 memset(&sp->stats, 0, sizeof(struct net_device_stats));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003534
Joe Perchesffb5df62009-08-24 17:29:47 +00003535 stats = sp->mac_control.stats_info;
3536 swstats = &stats->sw_stat;
3537
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003538 /* save link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003539 up_cnt = swstats->link_up_cnt;
3540 down_cnt = swstats->link_down_cnt;
3541 up_time = swstats->link_up_time;
3542 down_time = swstats->link_down_time;
3543 reset_cnt = swstats->soft_reset_cnt;
3544 mem_alloc_cnt = swstats->mem_allocated;
3545 mem_free_cnt = swstats->mem_freed;
3546 watchdog_cnt = swstats->watchdog_timer_cnt;
3547
3548 memset(stats, 0, sizeof(struct stat_block));
3549
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003550 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003551 swstats->link_up_cnt = up_cnt;
3552 swstats->link_down_cnt = down_cnt;
3553 swstats->link_up_time = up_time;
3554 swstats->link_down_time = down_time;
3555 swstats->soft_reset_cnt = reset_cnt;
3556 swstats->mem_allocated = mem_alloc_cnt;
3557 swstats->mem_freed = mem_free_cnt;
3558 swstats->watchdog_timer_cnt = watchdog_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003559
Linus Torvalds1da177e2005-04-16 15:20:36 -07003560 /* SXE-002: Configure link and activity LED to turn it off */
3561 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003562 if (((subid & 0xFF) >= 0x07) &&
3563 (sp->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003564 val64 = readq(&bar0->gpio_control);
3565 val64 |= 0x0000800000000000ULL;
3566 writeq(val64, &bar0->gpio_control);
3567 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01003568 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003569 }
3570
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003571 /*
3572 * Clear spurious ECC interrupts that would have occured on
3573 * XFRAME II cards after reset.
3574 */
3575 if (sp->device_type == XFRAME_II_DEVICE) {
3576 val64 = readq(&bar0->pcc_err_reg);
3577 writeq(val64, &bar0->pcc_err_reg);
3578 }
3579
Tobias Klauserf957bcf2009-06-04 23:07:59 +00003580 sp->device_enabled_once = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003581}
3582
3583/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003584 * s2io_set_swapper - to set the swapper controle on the card
3585 * @sp : private member of the device structure,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003586 * pointer to the s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003587 * Description: Function to set the swapper control on the card
Linus Torvalds1da177e2005-04-16 15:20:36 -07003588 * correctly depending on the 'endianness' of the system.
3589 * Return value:
3590 * SUCCESS on success and FAILURE on failure.
3591 */
3592
Joe Perchesd44570e2009-08-24 17:29:44 +00003593static int s2io_set_swapper(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003594{
3595 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003596 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003597 u64 val64, valt, valr;
3598
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003599 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003600 * Set proper endian settings and verify the same by reading
3601 * the PIF Feed-back register.
3602 */
3603
3604 val64 = readq(&bar0->pif_rd_swapper_fb);
3605 if (val64 != 0x0123456789ABCDEFULL) {
3606 int i = 0;
3607 u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3608 0x8100008181000081ULL, /* FE=1, SE=0 */
3609 0x4200004242000042ULL, /* FE=0, SE=1 */
3610 0}; /* FE=0, SE=0 */
3611
Joe Perchesd44570e2009-08-24 17:29:44 +00003612 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003613 writeq(value[i], &bar0->swapper_ctrl);
3614 val64 = readq(&bar0->pif_rd_swapper_fb);
3615 if (val64 == 0x0123456789ABCDEFULL)
3616 break;
3617 i++;
3618 }
3619 if (i == 4) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003620 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, "
3621 "feedback read %llx\n",
3622 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003623 return FAILURE;
3624 }
3625 valr = value[i];
3626 } else {
3627 valr = readq(&bar0->swapper_ctrl);
3628 }
3629
3630 valt = 0x0123456789ABCDEFULL;
3631 writeq(valt, &bar0->xmsi_address);
3632 val64 = readq(&bar0->xmsi_address);
3633
Joe Perchesd44570e2009-08-24 17:29:44 +00003634 if (val64 != valt) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003635 int i = 0;
3636 u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3637 0x0081810000818100ULL, /* FE=1, SE=0 */
3638 0x0042420000424200ULL, /* FE=0, SE=1 */
3639 0}; /* FE=0, SE=0 */
3640
Joe Perchesd44570e2009-08-24 17:29:44 +00003641 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003642 writeq((value[i] | valr), &bar0->swapper_ctrl);
3643 writeq(valt, &bar0->xmsi_address);
3644 val64 = readq(&bar0->xmsi_address);
Joe Perchesd44570e2009-08-24 17:29:44 +00003645 if (val64 == valt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003646 break;
3647 i++;
3648 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003649 if (i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003650 unsigned long long x = val64;
Joe Perches9e39f7c2009-08-25 08:52:00 +00003651 DBG_PRINT(ERR_DBG,
3652 "Write failed, Xmsi_addr reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003653 return FAILURE;
3654 }
3655 }
3656 val64 = readq(&bar0->swapper_ctrl);
3657 val64 &= 0xFFFF000000000000ULL;
3658
Joe Perchesd44570e2009-08-24 17:29:44 +00003659#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003660 /*
3661 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003662 * big endian driver need not set anything.
3663 */
3664 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003665 SWAPPER_CTRL_TXP_SE |
3666 SWAPPER_CTRL_TXD_R_FE |
3667 SWAPPER_CTRL_TXD_W_FE |
3668 SWAPPER_CTRL_TXF_R_FE |
3669 SWAPPER_CTRL_RXD_R_FE |
3670 SWAPPER_CTRL_RXD_W_FE |
3671 SWAPPER_CTRL_RXF_W_FE |
3672 SWAPPER_CTRL_XMSI_FE |
3673 SWAPPER_CTRL_STATS_FE |
3674 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003675 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003676 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003677 writeq(val64, &bar0->swapper_ctrl);
3678#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003679 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003680 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003681 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003682 * we want to set.
3683 */
3684 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003685 SWAPPER_CTRL_TXP_SE |
3686 SWAPPER_CTRL_TXD_R_FE |
3687 SWAPPER_CTRL_TXD_R_SE |
3688 SWAPPER_CTRL_TXD_W_FE |
3689 SWAPPER_CTRL_TXD_W_SE |
3690 SWAPPER_CTRL_TXF_R_FE |
3691 SWAPPER_CTRL_RXD_R_FE |
3692 SWAPPER_CTRL_RXD_R_SE |
3693 SWAPPER_CTRL_RXD_W_FE |
3694 SWAPPER_CTRL_RXD_W_SE |
3695 SWAPPER_CTRL_RXF_W_FE |
3696 SWAPPER_CTRL_XMSI_FE |
3697 SWAPPER_CTRL_STATS_FE |
3698 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003699 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003700 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003701 writeq(val64, &bar0->swapper_ctrl);
3702#endif
3703 val64 = readq(&bar0->swapper_ctrl);
3704
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003705 /*
3706 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003707 * feedback register.
3708 */
3709 val64 = readq(&bar0->pif_rd_swapper_fb);
3710 if (val64 != 0x0123456789ABCDEFULL) {
3711 /* Endian settings are incorrect, calls for another dekko. */
Joe Perches9e39f7c2009-08-25 08:52:00 +00003712 DBG_PRINT(ERR_DBG,
3713 "%s: Endian settings are wrong, feedback read %llx\n",
3714 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003715 return FAILURE;
3716 }
3717
3718 return SUCCESS;
3719}
3720
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003721static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003722{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003723 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003724 u64 val64;
3725 int ret = 0, cnt = 0;
3726
3727 do {
3728 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003729 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003730 break;
3731 mdelay(1);
3732 cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00003733 } while (cnt < 5);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003734 if (cnt == 5) {
3735 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3736 ret = 1;
3737 }
3738
3739 return ret;
3740}
3741
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003742static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003743{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003744 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003745 u64 val64;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003746 int i, msix_index;
3747
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003748 if (nic->device_type == XFRAME_I_DEVICE)
3749 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003750
Joe Perchesd44570e2009-08-24 17:29:44 +00003751 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3752 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003753 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3754 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003755 val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003756 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003757 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003758 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3759 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003760 continue;
3761 }
3762 }
3763}
3764
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003765static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003766{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003767 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003768 u64 val64, addr, data;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003769 int i, msix_index;
3770
3771 if (nic->device_type == XFRAME_I_DEVICE)
3772 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003773
3774 /* Store and display */
Joe Perchesd44570e2009-08-24 17:29:44 +00003775 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3776 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003777 val64 = (s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003778 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003779 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003780 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3781 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003782 continue;
3783 }
3784 addr = readq(&bar0->xmsi_address);
3785 data = readq(&bar0->xmsi_data);
3786 if (addr && data) {
3787 nic->msix_info[i].addr = addr;
3788 nic->msix_info[i].data = data;
3789 }
3790 }
3791}
3792
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003793static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003794{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003795 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003796 u64 rx_mat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003797 u16 msi_control; /* Temp variable */
3798 int ret, i, j, msix_indx = 1;
Joe Perches4f870322009-08-24 17:29:42 +00003799 int size;
Joe Perchesffb5df62009-08-24 17:29:47 +00003800 struct stat_block *stats = nic->mac_control.stats_info;
3801 struct swStat *swstats = &stats->sw_stat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003802
Joe Perches4f870322009-08-24 17:29:42 +00003803 size = nic->num_entries * sizeof(struct msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003804 nic->entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003805 if (!nic->entries) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003806 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
3807 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003808 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003809 return -ENOMEM;
3810 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003811 swstats->mem_allocated += size;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003812
Joe Perches4f870322009-08-24 17:29:42 +00003813 size = nic->num_entries * sizeof(struct s2io_msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003814 nic->s2io_entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003815 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003816 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003817 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003818 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003819 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003820 swstats->mem_freed
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003821 += (nic->num_entries * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003822 return -ENOMEM;
3823 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003824 swstats->mem_allocated += size;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003825
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003826 nic->entries[0].entry = 0;
3827 nic->s2io_entries[0].entry = 0;
3828 nic->s2io_entries[0].in_use = MSIX_FLG;
3829 nic->s2io_entries[0].type = MSIX_ALARM_TYPE;
3830 nic->s2io_entries[0].arg = &nic->mac_control.fifos;
3831
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003832 for (i = 1; i < nic->num_entries; i++) {
3833 nic->entries[i].entry = ((i - 1) * 8) + 1;
3834 nic->s2io_entries[i].entry = ((i - 1) * 8) + 1;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003835 nic->s2io_entries[i].arg = NULL;
3836 nic->s2io_entries[i].in_use = 0;
3837 }
3838
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003839 rx_mat = readq(&bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003840 for (j = 0; j < nic->config.rx_ring_num; j++) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003841 rx_mat |= RX_MAT_SET(j, msix_indx);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003842 nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j];
3843 nic->s2io_entries[j+1].type = MSIX_RING_TYPE;
3844 nic->s2io_entries[j+1].in_use = MSIX_FLG;
3845 msix_indx += 8;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003846 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003847 writeq(rx_mat, &bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003848 readq(&bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003849
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003850 ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003851 /* We fail init if error or we get less vectors than min required */
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003852 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003853 DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n");
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003854 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003855 swstats->mem_freed += nic->num_entries *
3856 sizeof(struct msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003857 kfree(nic->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003858 swstats->mem_freed += nic->num_entries *
3859 sizeof(struct s2io_msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003860 nic->entries = NULL;
3861 nic->s2io_entries = NULL;
3862 return -ENOMEM;
3863 }
3864
3865 /*
3866 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3867 * in the herc NIC. (Temp change, needs to be removed later)
3868 */
3869 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3870 msi_control |= 0x1; /* Enable MSI */
3871 pci_write_config_word(nic->pdev, 0x42, msi_control);
3872
3873 return 0;
3874}
3875
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003876/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003877static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003878{
3879 struct s2io_nic *sp = dev_id;
3880
3881 sp->msi_detected = 1;
3882 wake_up(&sp->msi_wait);
3883
3884 return IRQ_HANDLED;
3885}
3886
3887/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003888static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003889{
3890 struct pci_dev *pdev = sp->pdev;
3891 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3892 int err;
3893 u64 val64, saved64;
3894
3895 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00003896 sp->name, sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003897 if (err) {
3898 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003899 sp->dev->name, pci_name(pdev), pdev->irq);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003900 return err;
3901 }
3902
Joe Perchesd44570e2009-08-24 17:29:44 +00003903 init_waitqueue_head(&sp->msi_wait);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003904 sp->msi_detected = 0;
3905
3906 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3907 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3908 val64 |= SCHED_INT_CTRL_TIMER_EN;
3909 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3910 writeq(val64, &bar0->scheduled_int_ctrl);
3911
3912 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3913
3914 if (!sp->msi_detected) {
3915 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003916 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Joe Perches9e39f7c2009-08-25 08:52:00 +00003917 "using MSI(X) during test\n",
3918 sp->dev->name, pci_name(pdev));
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003919
3920 err = -EOPNOTSUPP;
3921 }
3922
3923 free_irq(sp->entries[1].vector, sp);
3924
3925 writeq(saved64, &bar0->scheduled_int_ctrl);
3926
3927 return err;
3928}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003929
3930static void remove_msix_isr(struct s2io_nic *sp)
3931{
3932 int i;
3933 u16 msi_control;
3934
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003935 for (i = 0; i < sp->num_entries; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003936 if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003937 int vector = sp->entries[i].vector;
3938 void *arg = sp->s2io_entries[i].arg;
3939 free_irq(vector, arg);
3940 }
3941 }
3942
3943 kfree(sp->entries);
3944 kfree(sp->s2io_entries);
3945 sp->entries = NULL;
3946 sp->s2io_entries = NULL;
3947
3948 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3949 msi_control &= 0xFFFE; /* Disable MSI */
3950 pci_write_config_word(sp->pdev, 0x42, msi_control);
3951
3952 pci_disable_msix(sp->pdev);
3953}
3954
3955static void remove_inta_isr(struct s2io_nic *sp)
3956{
3957 struct net_device *dev = sp->dev;
3958
3959 free_irq(sp->pdev->irq, dev);
3960}
3961
Linus Torvalds1da177e2005-04-16 15:20:36 -07003962/* ********************************************************* *
3963 * Functions defined below concern the OS part of the driver *
3964 * ********************************************************* */
3965
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003966/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003967 * s2io_open - open entry point of the driver
3968 * @dev : pointer to the device structure.
3969 * Description:
3970 * This function is the open entry point of the driver. It mainly calls a
3971 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003972 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003973 * Return value:
3974 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3975 * file on failure.
3976 */
3977
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003978static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003979{
Wang Chen4cf16532008-11-12 23:38:14 -08003980 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003981 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003982 int err = 0;
3983
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003984 /*
3985 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003986 * Nic is initialized
3987 */
3988 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003989 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003990
3991 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003992 err = s2io_card_up(sp);
3993 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003994 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3995 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003996 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003997 }
3998
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003999 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004000 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004001 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004002 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004003 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004004 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004005 s2io_start_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004006 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004007
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004008hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07004009 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004010 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004011 kfree(sp->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004012 swstats->mem_freed += sp->num_entries *
4013 sizeof(struct msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004014 }
4015 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004016 kfree(sp->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00004017 swstats->mem_freed += sp->num_entries *
4018 sizeof(struct s2io_msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004019 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004020 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004021 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004022}
4023
4024/**
4025 * s2io_close -close entry point of the driver
4026 * @dev : device pointer.
4027 * Description:
4028 * This is the stop entry point of the driver. It needs to undo exactly
4029 * whatever was done by the open entry point,thus it's usually referred to
4030 * as the close function.Among other things this function mainly stops the
4031 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
4032 * Return value:
4033 * 0 on success and an appropriate (-)ve integer as defined in errno.h
4034 * file on failure.
4035 */
4036
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004037static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004038{
Wang Chen4cf16532008-11-12 23:38:14 -08004039 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004040 struct config_param *config = &sp->config;
4041 u64 tmp64;
4042 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004043
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004044 /* Return if the device is already closed *
Joe Perchesd44570e2009-08-24 17:29:44 +00004045 * Can happen when s2io_card_up failed in change_mtu *
4046 */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05004047 if (!is_s2io_card_up(sp))
4048 return 0;
4049
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004050 s2io_stop_all_tx_queue(sp);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004051 /* delete all populated mac entries */
4052 for (offset = 1; offset < config->max_mc_addr; offset++) {
4053 tmp64 = do_s2io_read_unicast_mc(sp, offset);
4054 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
4055 do_s2io_delete_unicast_mc(sp, tmp64);
4056 }
4057
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004058 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004059
Linus Torvalds1da177e2005-04-16 15:20:36 -07004060 return 0;
4061}
4062
4063/**
4064 * s2io_xmit - Tx entry point of te driver
4065 * @skb : the socket buffer containing the Tx data.
4066 * @dev : device pointer.
4067 * Description :
4068 * This function is the Tx entry point of the driver. S2IO NIC supports
4069 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
4070 * NOTE: when device cant queue the pkt,just the trans_start variable will
4071 * not be upadted.
4072 * Return value:
4073 * 0 on success & 1 on failure.
4074 */
4075
Stephen Hemminger613573252009-08-31 19:50:58 +00004076static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004077{
Wang Chen4cf16532008-11-12 23:38:14 -08004078 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004079 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4080 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004081 struct TxD *txdp;
4082 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004083 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004084 u16 vlan_tag = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004085 struct fifo_info *fifo = NULL;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004086 int do_spin_lock = 1;
Ananda Raju75c30b12006-07-24 19:55:09 -04004087 int offload_type;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004088 int enable_per_list_interrupt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00004089 struct config_param *config = &sp->config;
4090 struct mac_info *mac_control = &sp->mac_control;
4091 struct stat_block *stats = mac_control->stats_info;
4092 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004093
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004094 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004095
4096 if (unlikely(skb->len <= 0)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00004097 DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004098 dev_kfree_skb_any(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004099 return NETDEV_TX_OK;
Surjit Reang2fda0962008-01-24 02:08:59 -08004100 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004101
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004102 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004103 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004104 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004105 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004106 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004107 }
4108
4109 queue = 0;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004110 if (sp->vlgrp && vlan_tx_tag_present(skb))
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004111 vlan_tag = vlan_tx_tag_get(skb);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004112 if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) {
4113 if (skb->protocol == htons(ETH_P_IP)) {
4114 struct iphdr *ip;
4115 struct tcphdr *th;
4116 ip = ip_hdr(skb);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004117
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004118 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
4119 th = (struct tcphdr *)(((unsigned char *)ip) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004120 ip->ihl*4);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004121
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004122 if (ip->protocol == IPPROTO_TCP) {
4123 queue_len = sp->total_tcp_fifos;
4124 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004125 ntohs(th->dest)) &
4126 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004127 if (queue >= queue_len)
4128 queue = queue_len - 1;
4129 } else if (ip->protocol == IPPROTO_UDP) {
4130 queue_len = sp->total_udp_fifos;
4131 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004132 ntohs(th->dest)) &
4133 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004134 if (queue >= queue_len)
4135 queue = queue_len - 1;
4136 queue += sp->udp_fifo_idx;
4137 if (skb->len > 1024)
4138 enable_per_list_interrupt = 1;
4139 do_spin_lock = 0;
4140 }
4141 }
4142 }
4143 } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING)
4144 /* get fifo number based on skb->priority value */
4145 queue = config->fifo_mapping
Joe Perchesd44570e2009-08-24 17:29:44 +00004146 [skb->priority & (MAX_TX_FIFOS - 1)];
Surjit Reang2fda0962008-01-24 02:08:59 -08004147 fifo = &mac_control->fifos[queue];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004148
4149 if (do_spin_lock)
4150 spin_lock_irqsave(&fifo->tx_lock, flags);
4151 else {
4152 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
4153 return NETDEV_TX_LOCKED;
4154 }
4155
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004156 if (sp->config.multiq) {
4157 if (__netif_subqueue_stopped(dev, fifo->fifo_no)) {
4158 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4159 return NETDEV_TX_BUSY;
4160 }
David S. Millerb19fa1f2008-07-08 23:14:24 -07004161 } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004162 if (netif_queue_stopped(dev)) {
4163 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4164 return NETDEV_TX_BUSY;
4165 }
4166 }
4167
Joe Perchesd44570e2009-08-24 17:29:44 +00004168 put_off = (u16)fifo->tx_curr_put_info.offset;
4169 get_off = (u16)fifo->tx_curr_get_info.offset;
4170 txdp = (struct TxD *)fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004171
Surjit Reang2fda0962008-01-24 02:08:59 -08004172 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004173 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004174 if (txdp->Host_Control ||
Joe Perchesd44570e2009-08-24 17:29:44 +00004175 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004176 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004177 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004178 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004179 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004180 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004181 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004182
Ananda Raju75c30b12006-07-24 19:55:09 -04004183 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004184 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004185 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004186 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004187 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004188 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004189 txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN |
4190 TXD_TX_CKO_TCP_EN |
4191 TXD_TX_CKO_UDP_EN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004192 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004193 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4194 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004195 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004196 if (enable_per_list_interrupt)
4197 if (put_off & (queue_len >> 5))
4198 txdp->Control_2 |= TXD_INT_TYPE_PER_LIST;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004199 if (vlan_tag) {
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004200 txdp->Control_2 |= TXD_VLAN_ENABLE;
4201 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4202 }
4203
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004204 frg_len = skb->len - skb->data_len;
Ananda Raju75c30b12006-07-24 19:55:09 -04004205 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004206 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004207
Ananda Raju75c30b12006-07-24 19:55:09 -04004208 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004209 ufo_size &= ~7;
4210 txdp->Control_1 |= TXD_UFO_EN;
4211 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4212 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4213#ifdef __BIG_ENDIAN
Al Viro3459feb2008-03-16 22:23:14 +00004214 /* both variants do cpu_to_be64(be32_to_cpu(...)) */
Surjit Reang2fda0962008-01-24 02:08:59 -08004215 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004216 (__force u64)skb_shinfo(skb)->ip6_frag_id;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004217#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004218 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004219 (__force u64)skb_shinfo(skb)->ip6_frag_id << 32;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004220#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004221 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004222 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00004223 fifo->ufo_in_band_v,
4224 sizeof(u64),
4225 PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004226 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004227 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004228 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004229 }
4230
Joe Perchesd44570e2009-08-24 17:29:44 +00004231 txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
4232 frg_len, PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004233 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004234 goto pci_map_failed;
4235
Joe Perchesd44570e2009-08-24 17:29:44 +00004236 txdp->Host_Control = (unsigned long)skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004237 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004238 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004239 txdp->Control_1 |= TXD_UFO_EN;
4240
4241 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004242 /* For fragmented SKB. */
4243 for (i = 0; i < frg_cnt; i++) {
4244 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004245 /* A '0' length fragment will be ignored */
4246 if (!frag->size)
4247 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004248 txdp++;
Joe Perchesd44570e2009-08-24 17:29:44 +00004249 txdp->Buffer_Pointer = (u64)pci_map_page(sp->pdev, frag->page,
4250 frag->page_offset,
4251 frag->size,
4252 PCI_DMA_TODEVICE);
Ananda Rajuefd51b52006-01-19 14:11:54 -05004253 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
Ananda Raju75c30b12006-07-24 19:55:09 -04004254 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004255 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004256 }
4257 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4258
Ananda Raju75c30b12006-07-24 19:55:09 -04004259 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004260 frg_cnt++; /* as Txd0 was used for inband header */
4261
Linus Torvalds1da177e2005-04-16 15:20:36 -07004262 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004263 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004264 writeq(val64, &tx_fifo->TxDL_Pointer);
4265
4266 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4267 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004268 if (offload_type)
4269 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004270
Linus Torvalds1da177e2005-04-16 15:20:36 -07004271 writeq(val64, &tx_fifo->List_Control);
4272
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004273 mmiowb();
4274
Linus Torvalds1da177e2005-04-16 15:20:36 -07004275 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004276 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004277 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004278 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004279
4280 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004281 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Joe Perchesffb5df62009-08-24 17:29:47 +00004282 swstats->fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004283 DBG_PRINT(TX_DBG,
4284 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4285 put_off, get_off);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004286 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004287 }
Joe Perchesffb5df62009-08-24 17:29:47 +00004288 swstats->mem_allocated += skb->truesize;
Surjit Reang2fda0962008-01-24 02:08:59 -08004289 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004290
Sreenivasa Honnurf6f4bfa2008-03-25 15:11:56 -04004291 if (sp->config.intr_type == MSI_X)
4292 tx_intr_handler(fifo);
4293
Patrick McHardy6ed10652009-06-23 06:03:08 +00004294 return NETDEV_TX_OK;
Joe Perchesffb5df62009-08-24 17:29:47 +00004295
Veena Parat491abf22007-07-23 02:37:14 -04004296pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00004297 swstats->pci_map_fail_cnt++;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004298 s2io_stop_tx_queue(sp, fifo->fifo_no);
Joe Perchesffb5df62009-08-24 17:29:47 +00004299 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04004300 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004301 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004302 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004303}
4304
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004305static void
4306s2io_alarm_handle(unsigned long data)
4307{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004308 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004309 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004310
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004311 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004312 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4313}
4314
David Howells7d12e782006-10-05 14:55:46 +01004315static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004316{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004317 struct ring_info *ring = (struct ring_info *)dev_id;
4318 struct s2io_nic *sp = ring->nic;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004319 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004320
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004321 if (unlikely(!is_s2io_card_up(sp)))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004322 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004323
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004324 if (sp->config.napi) {
Al Viro1a79d1c2008-06-02 10:59:02 +01004325 u8 __iomem *addr = NULL;
4326 u8 val8 = 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004327
Al Viro1a79d1c2008-06-02 10:59:02 +01004328 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004329 addr += (7 - ring->ring_no);
4330 val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
4331 writeb(val8, addr);
4332 val8 = readb(addr);
Ben Hutchings288379f2009-01-19 16:43:59 -08004333 napi_schedule(&ring->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004334 } else {
4335 rx_intr_handler(ring, 0);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004336 s2io_chk_rx_buffers(sp, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004337 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004338
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004339 return IRQ_HANDLED;
4340}
4341
David Howells7d12e782006-10-05 14:55:46 +01004342static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004343{
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004344 int i;
4345 struct fifo_info *fifos = (struct fifo_info *)dev_id;
4346 struct s2io_nic *sp = fifos->nic;
4347 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4348 struct config_param *config = &sp->config;
4349 u64 reason;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004350
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004351 if (unlikely(!is_s2io_card_up(sp)))
4352 return IRQ_NONE;
4353
4354 reason = readq(&bar0->general_int_status);
4355 if (unlikely(reason == S2IO_MINUS_ONE))
4356 /* Nothing much can be done. Get out */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004357 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004358
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004359 if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
4360 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004361
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004362 if (reason & GEN_INTR_TXPIC)
4363 s2io_txpic_intr_handle(sp);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004364
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004365 if (reason & GEN_INTR_TXTRAFFIC)
4366 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004367
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004368 for (i = 0; i < config->tx_fifo_num; i++)
4369 tx_intr_handler(&fifos[i]);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004370
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004371 writeq(sp->general_int_mask, &bar0->general_int_mask);
4372 readl(&bar0->general_int_status);
4373 return IRQ_HANDLED;
4374 }
4375 /* The interrupt was not raised by us */
4376 return IRQ_NONE;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004377}
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004378
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004379static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004380{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004381 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004382 u64 val64;
4383
4384 val64 = readq(&bar0->pic_int_status);
4385 if (val64 & PIC_INT_GPIO) {
4386 val64 = readq(&bar0->gpio_int_reg);
4387 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4388 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004389 /*
4390 * This is unstable state so clear both up/down
4391 * interrupt and adapter to re-evaluate the link state.
4392 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004393 val64 |= GPIO_INT_REG_LINK_DOWN;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004394 val64 |= GPIO_INT_REG_LINK_UP;
4395 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004396 val64 = readq(&bar0->gpio_int_mask);
4397 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4398 GPIO_INT_MASK_LINK_DOWN);
4399 writeq(val64, &bar0->gpio_int_mask);
Joe Perchesd44570e2009-08-24 17:29:44 +00004400 } else if (val64 & GPIO_INT_REG_LINK_UP) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004401 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004402 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004403 val64 = readq(&bar0->adapter_control);
4404 val64 |= ADAPTER_CNTL_EN;
4405 writeq(val64, &bar0->adapter_control);
4406 val64 |= ADAPTER_LED_ON;
4407 writeq(val64, &bar0->adapter_control);
4408 if (!sp->device_enabled_once)
4409 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004410
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004411 s2io_link(sp, LINK_UP);
4412 /*
4413 * unmask link down interrupt and mask link-up
4414 * intr
4415 */
4416 val64 = readq(&bar0->gpio_int_mask);
4417 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4418 val64 |= GPIO_INT_MASK_LINK_UP;
4419 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004420
Joe Perchesd44570e2009-08-24 17:29:44 +00004421 } else if (val64 & GPIO_INT_REG_LINK_DOWN) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004422 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004423 s2io_link(sp, LINK_DOWN);
4424 /* Link is down so unmaks link up interrupt */
4425 val64 = readq(&bar0->gpio_int_mask);
4426 val64 &= ~GPIO_INT_MASK_LINK_UP;
4427 val64 |= GPIO_INT_MASK_LINK_DOWN;
4428 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004429
4430 /* turn off LED */
4431 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00004432 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004433 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004434 }
4435 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004436 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004437}
4438
Linus Torvalds1da177e2005-04-16 15:20:36 -07004439/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004440 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4441 * @value: alarm bits
4442 * @addr: address value
4443 * @cnt: counter variable
4444 * Description: Check for alarm and increment the counter
4445 * Return Value:
4446 * 1 - if alarm bit set
4447 * 0 - if alarm bit is not set
4448 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004449static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr,
4450 unsigned long long *cnt)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004451{
4452 u64 val64;
4453 val64 = readq(addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00004454 if (val64 & value) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004455 writeq(val64, addr);
4456 (*cnt)++;
4457 return 1;
4458 }
4459 return 0;
4460
4461}
4462
4463/**
4464 * s2io_handle_errors - Xframe error indication handler
4465 * @nic: device private variable
4466 * Description: Handle alarms such as loss of link, single or
4467 * double ECC errors, critical and serious errors.
4468 * Return Value:
4469 * NONE
4470 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004471static void s2io_handle_errors(void *dev_id)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004472{
Joe Perchesd44570e2009-08-24 17:29:44 +00004473 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004474 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004475 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Joe Perchesd44570e2009-08-24 17:29:44 +00004476 u64 temp64 = 0, val64 = 0;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004477 int i = 0;
4478
4479 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4480 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4481
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004482 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004483 return;
4484
4485 if (pci_channel_offline(sp->pdev))
4486 return;
4487
4488 memset(&sw_stat->ring_full_cnt, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00004489 sizeof(sw_stat->ring_full_cnt));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004490
4491 /* Handling the XPAK counters update */
Joe Perchesd44570e2009-08-24 17:29:44 +00004492 if (stats->xpak_timer_count < 72000) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004493 /* waiting for an hour */
4494 stats->xpak_timer_count++;
4495 } else {
4496 s2io_updt_xpak_counter(dev);
4497 /* reset the count to zero */
4498 stats->xpak_timer_count = 0;
4499 }
4500
4501 /* Handling link status change error Intr */
4502 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4503 val64 = readq(&bar0->mac_rmac_err_reg);
4504 writeq(val64, &bar0->mac_rmac_err_reg);
4505 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4506 schedule_work(&sp->set_link_task);
4507 }
4508
4509 /* In case of a serious error, the device will be Reset. */
4510 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
Joe Perchesd44570e2009-08-24 17:29:44 +00004511 &sw_stat->serious_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004512 goto reset;
4513
4514 /* Check for data parity error */
4515 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
Joe Perchesd44570e2009-08-24 17:29:44 +00004516 &sw_stat->parity_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004517 goto reset;
4518
4519 /* Check for ring full counter */
4520 if (sp->device_type == XFRAME_II_DEVICE) {
4521 val64 = readq(&bar0->ring_bump_counter1);
Joe Perchesd44570e2009-08-24 17:29:44 +00004522 for (i = 0; i < 4; i++) {
4523 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004524 temp64 >>= 64 - ((i+1)*16);
4525 sw_stat->ring_full_cnt[i] += temp64;
4526 }
4527
4528 val64 = readq(&bar0->ring_bump_counter2);
Joe Perchesd44570e2009-08-24 17:29:44 +00004529 for (i = 0; i < 4; i++) {
4530 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004531 temp64 >>= 64 - ((i+1)*16);
Joe Perchesd44570e2009-08-24 17:29:44 +00004532 sw_stat->ring_full_cnt[i+4] += temp64;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004533 }
4534 }
4535
4536 val64 = readq(&bar0->txdma_int_status);
4537 /*check for pfc_err*/
4538 if (val64 & TXDMA_PFC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004539 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
4540 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
4541 PFC_PCIX_ERR,
4542 &bar0->pfc_err_reg,
4543 &sw_stat->pfc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004544 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004545 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR,
4546 &bar0->pfc_err_reg,
4547 &sw_stat->pfc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004548 }
4549
4550 /*check for tda_err*/
4551 if (val64 & TXDMA_TDA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004552 if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR |
4553 TDA_SM0_ERR_ALARM |
4554 TDA_SM1_ERR_ALARM,
4555 &bar0->tda_err_reg,
4556 &sw_stat->tda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004557 goto reset;
4558 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004559 &bar0->tda_err_reg,
4560 &sw_stat->tda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004561 }
4562 /*check for pcc_err*/
4563 if (val64 & TXDMA_PCC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004564 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
4565 PCC_N_SERR | PCC_6_COF_OV_ERR |
4566 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
4567 PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR |
4568 PCC_TXB_ECC_DB_ERR,
4569 &bar0->pcc_err_reg,
4570 &sw_stat->pcc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004571 goto reset;
4572 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004573 &bar0->pcc_err_reg,
4574 &sw_stat->pcc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004575 }
4576
4577 /*check for tti_err*/
4578 if (val64 & TXDMA_TTI_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004579 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM,
4580 &bar0->tti_err_reg,
4581 &sw_stat->tti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004582 goto reset;
4583 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004584 &bar0->tti_err_reg,
4585 &sw_stat->tti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004586 }
4587
4588 /*check for lso_err*/
4589 if (val64 & TXDMA_LSO_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004590 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT |
4591 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4592 &bar0->lso_err_reg,
4593 &sw_stat->lso_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004594 goto reset;
4595 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
Joe Perchesd44570e2009-08-24 17:29:44 +00004596 &bar0->lso_err_reg,
4597 &sw_stat->lso_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004598 }
4599
4600 /*check for tpa_err*/
4601 if (val64 & TXDMA_TPA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004602 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM,
4603 &bar0->tpa_err_reg,
4604 &sw_stat->tpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004605 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004606 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP,
4607 &bar0->tpa_err_reg,
4608 &sw_stat->tpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004609 }
4610
4611 /*check for sm_err*/
4612 if (val64 & TXDMA_SM_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004613 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM,
4614 &bar0->sm_err_reg,
4615 &sw_stat->sm_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004616 goto reset;
4617 }
4618
4619 val64 = readq(&bar0->mac_int_status);
4620 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4621 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004622 &bar0->mac_tmac_err_reg,
4623 &sw_stat->mac_tmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004624 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004625 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
4626 TMAC_DESC_ECC_SG_ERR |
4627 TMAC_DESC_ECC_DB_ERR,
4628 &bar0->mac_tmac_err_reg,
4629 &sw_stat->mac_tmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004630 }
4631
4632 val64 = readq(&bar0->xgxs_int_status);
4633 if (val64 & XGXS_INT_STATUS_TXGXS) {
4634 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_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 goto reset;
4638 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004639 &bar0->xgxs_txgxs_err_reg,
4640 &sw_stat->xgxs_txgxs_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004641 }
4642
4643 val64 = readq(&bar0->rxdma_int_status);
4644 if (val64 & RXDMA_INT_RC_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004645 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR |
4646 RC_FTC_ECC_DB_ERR |
4647 RC_PRCn_SM_ERR_ALARM |
4648 RC_FTC_SM_ERR_ALARM,
4649 &bar0->rc_err_reg,
4650 &sw_stat->rc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004651 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004652 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR |
4653 RC_FTC_ECC_SG_ERR |
4654 RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4655 &sw_stat->rc_err_cnt);
4656 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn |
4657 PRC_PCI_AB_WR_Rn |
4658 PRC_PCI_AB_F_WR_Rn,
4659 &bar0->prc_pcix_err_reg,
4660 &sw_stat->prc_pcix_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004661 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004662 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn |
4663 PRC_PCI_DP_WR_Rn |
4664 PRC_PCI_DP_F_WR_Rn,
4665 &bar0->prc_pcix_err_reg,
4666 &sw_stat->prc_pcix_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004667 }
4668
4669 if (val64 & RXDMA_INT_RPA_INT_M) {
4670 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_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 goto reset;
4674 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004675 &bar0->rpa_err_reg,
4676 &sw_stat->rpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004677 }
4678
4679 if (val64 & RXDMA_INT_RDA_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004680 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR |
4681 RDA_FRM_ECC_DB_N_AERR |
4682 RDA_SM1_ERR_ALARM |
4683 RDA_SM0_ERR_ALARM |
4684 RDA_RXD_ECC_DB_SERR,
4685 &bar0->rda_err_reg,
4686 &sw_stat->rda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004687 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004688 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR |
4689 RDA_FRM_ECC_SG_ERR |
4690 RDA_MISC_ERR |
4691 RDA_PCIX_ERR,
4692 &bar0->rda_err_reg,
4693 &sw_stat->rda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004694 }
4695
4696 if (val64 & RXDMA_INT_RTI_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004697 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM,
4698 &bar0->rti_err_reg,
4699 &sw_stat->rti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004700 goto reset;
4701 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004702 &bar0->rti_err_reg,
4703 &sw_stat->rti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004704 }
4705
4706 val64 = readq(&bar0->mac_int_status);
4707 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4708 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004709 &bar0->mac_rmac_err_reg,
4710 &sw_stat->mac_rmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004711 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004712 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT |
4713 RMAC_SINGLE_ECC_ERR |
4714 RMAC_DOUBLE_ECC_ERR,
4715 &bar0->mac_rmac_err_reg,
4716 &sw_stat->mac_rmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004717 }
4718
4719 val64 = readq(&bar0->xgxs_int_status);
4720 if (val64 & XGXS_INT_STATUS_RXGXS) {
4721 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004722 &bar0->xgxs_rxgxs_err_reg,
4723 &sw_stat->xgxs_rxgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004724 goto reset;
4725 }
4726
4727 val64 = readq(&bar0->mc_int_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004728 if (val64 & MC_INT_STATUS_MC_INT) {
4729 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR,
4730 &bar0->mc_err_reg,
4731 &sw_stat->mc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004732 goto reset;
4733
4734 /* Handling Ecc errors */
4735 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4736 writeq(val64, &bar0->mc_err_reg);
4737 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4738 sw_stat->double_ecc_errs++;
4739 if (sp->device_type != XFRAME_II_DEVICE) {
4740 /*
4741 * Reset XframeI only if critical error
4742 */
4743 if (val64 &
Joe Perchesd44570e2009-08-24 17:29:44 +00004744 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4745 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4746 goto reset;
4747 }
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004748 } else
4749 sw_stat->single_ecc_errs++;
4750 }
4751 }
4752 return;
4753
4754reset:
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004755 s2io_stop_all_tx_queue(sp);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004756 schedule_work(&sp->rst_timer_task);
4757 sw_stat->soft_reset_cnt++;
4758 return;
4759}
4760
4761/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004762 * s2io_isr - ISR handler of the device .
4763 * @irq: the irq of the device.
4764 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004765 * Description: This function is the ISR handler of the device. It
4766 * identifies the reason for the interrupt and calls the relevant
4767 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004768 * recv buffers, if their numbers are below the panic value which is
4769 * presently set to 25% of the original number of rcv buffers allocated.
4770 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004771 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004772 * IRQ_NONE: will be returned if interrupt is not from our device
4773 */
David Howells7d12e782006-10-05 14:55:46 +01004774static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004775{
Joe Perchesd44570e2009-08-24 17:29:44 +00004776 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004777 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004778 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004779 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004780 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004781 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004782 struct config_param *config;
4783
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004784 /* Pretend we handled any irq's from a disconnected card */
4785 if (pci_channel_offline(sp->pdev))
4786 return IRQ_NONE;
4787
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004788 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004789 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004790
Linus Torvalds1da177e2005-04-16 15:20:36 -07004791 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00004792 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004793
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004794 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004795 * Identify the cause for interrupt and call the appropriate
4796 * interrupt handler. Causes for the interrupt could be;
4797 * 1. Rx of packet.
4798 * 2. Tx complete.
4799 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004800 */
4801 reason = readq(&bar0->general_int_status);
4802
Joe Perchesd44570e2009-08-24 17:29:44 +00004803 if (unlikely(reason == S2IO_MINUS_ONE))
4804 return IRQ_HANDLED; /* Nothing much can be done. Get out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004805
Joe Perchesd44570e2009-08-24 17:29:44 +00004806 if (reason &
4807 (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004808 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4809
4810 if (config->napi) {
4811 if (reason & GEN_INTR_RXTRAFFIC) {
Ben Hutchings288379f2009-01-19 16:43:59 -08004812 napi_schedule(&sp->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004813 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
4814 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
4815 readl(&bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004816 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004817 } else {
4818 /*
4819 * rx_traffic_int reg is an R1 register, writing all 1's
4820 * will ensure that the actual interrupt causing bit
4821 * get's cleared and hence a read can be avoided.
4822 */
4823 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004824 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004825
Joe Perches13d866a2009-08-24 17:29:41 +00004826 for (i = 0; i < config->rx_ring_num; i++) {
4827 struct ring_info *ring = &mac_control->rings[i];
4828
4829 rx_intr_handler(ring, 0);
4830 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004831 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004832
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004833 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004834 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004835 * will ensure that the actual interrupt causing bit get's
4836 * cleared and hence a read can be avoided.
4837 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004838 if (reason & GEN_INTR_TXTRAFFIC)
4839 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004840
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004841 for (i = 0; i < config->tx_fifo_num; i++)
4842 tx_intr_handler(&mac_control->fifos[i]);
4843
4844 if (reason & GEN_INTR_TXPIC)
4845 s2io_txpic_intr_handle(sp);
4846
4847 /*
4848 * Reallocate the buffers from the interrupt handler itself.
4849 */
4850 if (!config->napi) {
Joe Perches13d866a2009-08-24 17:29:41 +00004851 for (i = 0; i < config->rx_ring_num; i++) {
4852 struct ring_info *ring = &mac_control->rings[i];
4853
4854 s2io_chk_rx_buffers(sp, ring);
4855 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004856 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004857 writeq(sp->general_int_mask, &bar0->general_int_mask);
4858 readl(&bar0->general_int_status);
4859
4860 return IRQ_HANDLED;
4861
Joe Perchesd44570e2009-08-24 17:29:44 +00004862 } else if (!reason) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004863 /* The interrupt was not raised by us */
4864 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004865 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004866
Linus Torvalds1da177e2005-04-16 15:20:36 -07004867 return IRQ_HANDLED;
4868}
4869
4870/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004871 * s2io_updt_stats -
4872 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004873static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004874{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004875 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004876 u64 val64;
4877 int cnt = 0;
4878
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004879 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004880 /* Apprx 30us on a 133 MHz bus */
4881 val64 = SET_UPDT_CLICKS(10) |
4882 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4883 writeq(val64, &bar0->stat_cfg);
4884 do {
4885 udelay(100);
4886 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004887 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004888 break;
4889 cnt++;
4890 if (cnt == 5)
4891 break; /* Updt failed */
Joe Perchesd44570e2009-08-24 17:29:44 +00004892 } while (1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004893 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004894}
4895
4896/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004897 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004898 * @dev : pointer to the device structure.
4899 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004900 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004901 * structure and returns a pointer to the same.
4902 * Return value:
4903 * pointer to the updated net_device_stats structure.
4904 */
4905
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004906static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004907{
Wang Chen4cf16532008-11-12 23:38:14 -08004908 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00004909 struct config_param *config = &sp->config;
4910 struct mac_info *mac_control = &sp->mac_control;
4911 struct stat_block *stats = mac_control->stats_info;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004912 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004913
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004914 /* Configure Stats for immediate updt */
4915 s2io_updt_stats(sp);
4916
Breno Leitaodc56e632008-07-22 16:27:20 -03004917 /* Using sp->stats as a staging area, because reset (due to mtu
4918 change, for example) will clear some hardware counters */
Joe Perchesffb5df62009-08-24 17:29:47 +00004919 dev->stats.tx_packets += le32_to_cpu(stats->tmac_frms) -
Breno Leitaodc56e632008-07-22 16:27:20 -03004920 sp->stats.tx_packets;
Joe Perchesffb5df62009-08-24 17:29:47 +00004921 sp->stats.tx_packets = le32_to_cpu(stats->tmac_frms);
4922
4923 dev->stats.tx_errors += le32_to_cpu(stats->tmac_any_err_frms) -
Breno Leitaodc56e632008-07-22 16:27:20 -03004924 sp->stats.tx_errors;
Joe Perchesffb5df62009-08-24 17:29:47 +00004925 sp->stats.tx_errors = le32_to_cpu(stats->tmac_any_err_frms);
4926
4927 dev->stats.rx_errors += le64_to_cpu(stats->rmac_drop_frms) -
Breno Leitaodc56e632008-07-22 16:27:20 -03004928 sp->stats.rx_errors;
Joe Perchesffb5df62009-08-24 17:29:47 +00004929 sp->stats.rx_errors = le64_to_cpu(stats->rmac_drop_frms);
4930
4931 dev->stats.multicast = le32_to_cpu(stats->rmac_vld_mcst_frms) -
Breno Leitaodc56e632008-07-22 16:27:20 -03004932 sp->stats.multicast;
Joe Perchesffb5df62009-08-24 17:29:47 +00004933 sp->stats.multicast = le32_to_cpu(stats->rmac_vld_mcst_frms);
4934
4935 dev->stats.rx_length_errors = le64_to_cpu(stats->rmac_long_frms) -
Breno Leitaodc56e632008-07-22 16:27:20 -03004936 sp->stats.rx_length_errors;
Joe Perchesffb5df62009-08-24 17:29:47 +00004937 sp->stats.rx_length_errors = le64_to_cpu(stats->rmac_long_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004938
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004939 /* collect per-ring rx_packets and rx_bytes */
Breno Leitaodc56e632008-07-22 16:27:20 -03004940 dev->stats.rx_packets = dev->stats.rx_bytes = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004941 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00004942 struct ring_info *ring = &mac_control->rings[i];
4943
4944 dev->stats.rx_packets += ring->rx_packets;
4945 dev->stats.rx_bytes += ring->rx_bytes;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004946 }
4947
Joe Perchesd44570e2009-08-24 17:29:44 +00004948 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004949}
4950
4951/**
4952 * s2io_set_multicast - entry point for multicast address enable/disable.
4953 * @dev : pointer to the device structure
4954 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004955 * This function is a driver entry point which gets called by the kernel
4956 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004957 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4958 * determine, if multicast address must be enabled or if promiscuous mode
4959 * is to be disabled etc.
4960 * Return value:
4961 * void.
4962 */
4963
4964static void s2io_set_multicast(struct net_device *dev)
4965{
4966 int i, j, prev_cnt;
4967 struct dev_mc_list *mclist;
Wang Chen4cf16532008-11-12 23:38:14 -08004968 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004969 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004970 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
Joe Perchesd44570e2009-08-24 17:29:44 +00004971 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004972 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004973 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004974 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004975
4976 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
4977 /* Enable all Multicast addresses */
4978 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
4979 &bar0->rmac_addr_data0_mem);
4980 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
4981 &bar0->rmac_addr_data1_mem);
4982 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00004983 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4984 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004985 writeq(val64, &bar0->rmac_addr_cmd_mem);
4986 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004987 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00004988 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4989 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004990
4991 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004992 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004993 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
4994 /* Disable all Multicast addresses */
4995 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
4996 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07004997 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
4998 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004999 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005000 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5001 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005002 writeq(val64, &bar0->rmac_addr_cmd_mem);
5003 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005004 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005005 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5006 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005007
5008 sp->m_cast_flg = 0;
5009 sp->all_multi_pos = 0;
5010 }
5011
5012 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
5013 /* Put the NIC into promiscuous mode */
5014 add = &bar0->mac_cfg;
5015 val64 = readq(&bar0->mac_cfg);
5016 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
5017
5018 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005019 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005020 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5021 writel((u32) (val64 >> 32), (add + 4));
5022
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005023 if (vlan_tag_strip != 1) {
5024 val64 = readq(&bar0->rx_pa_cfg);
5025 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
5026 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005027 sp->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005028 }
5029
Linus Torvalds1da177e2005-04-16 15:20:36 -07005030 val64 = readq(&bar0->mac_cfg);
5031 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07005032 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005033 dev->name);
5034 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
5035 /* Remove the NIC from promiscuous mode */
5036 add = &bar0->mac_cfg;
5037 val64 = readq(&bar0->mac_cfg);
5038 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
5039
5040 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005041 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005042 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5043 writel((u32) (val64 >> 32), (add + 4));
5044
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005045 if (vlan_tag_strip != 0) {
5046 val64 = readq(&bar0->rx_pa_cfg);
5047 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
5048 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005049 sp->vlan_strip_flag = 1;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005050 }
5051
Linus Torvalds1da177e2005-04-16 15:20:36 -07005052 val64 = readq(&bar0->mac_cfg);
5053 sp->promisc_flg = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005054 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005055 }
5056
5057 /* Update individual M_CAST address list */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005058 if ((!sp->m_cast_flg) && netdev_mc_count(dev)) {
5059 if (netdev_mc_count(dev) >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005060 (config->max_mc_addr - config->max_mac_addr)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005061 DBG_PRINT(ERR_DBG,
5062 "%s: No more Rx filters can be added - "
5063 "please enable ALL_MULTI instead\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005064 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005065 return;
5066 }
5067
5068 prev_cnt = sp->mc_addr_count;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005069 sp->mc_addr_count = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005070
5071 /* Clear out the previous list of Mc in the H/W. */
5072 for (i = 0; i < prev_cnt; i++) {
5073 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5074 &bar0->rmac_addr_data0_mem);
5075 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005076 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005077 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005078 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5079 RMAC_ADDR_CMD_MEM_OFFSET
5080 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005081 writeq(val64, &bar0->rmac_addr_cmd_mem);
5082
5083 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005084 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005085 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5086 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005087 DBG_PRINT(ERR_DBG,
5088 "%s: Adding Multicasts failed\n",
5089 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005090 return;
5091 }
5092 }
5093
5094 /* Create the new Rx filter list and update the same in H/W. */
Jiri Pirko55085902010-02-18 00:42:54 +00005095 i = 0;
5096 netdev_for_each_mc_addr(mclist, dev) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005097 memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr,
5098 ETH_ALEN);
Jeff Garzika7a80d52006-03-04 12:06:51 -05005099 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005100 for (j = 0; j < ETH_ALEN; j++) {
5101 mac_addr |= mclist->dmi_addr[j];
5102 mac_addr <<= 8;
5103 }
5104 mac_addr >>= 8;
5105 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
5106 &bar0->rmac_addr_data0_mem);
5107 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005108 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005109 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005110 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5111 RMAC_ADDR_CMD_MEM_OFFSET
5112 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005113 writeq(val64, &bar0->rmac_addr_cmd_mem);
5114
5115 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005116 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005117 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5118 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005119 DBG_PRINT(ERR_DBG,
5120 "%s: Adding Multicasts failed\n",
5121 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005122 return;
5123 }
Jiri Pirko55085902010-02-18 00:42:54 +00005124 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005125 }
5126 }
5127}
5128
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005129/* read from CAM unicast & multicast addresses and store it in
5130 * def_mac_addr structure
5131 */
Hannes Ederdac499f2008-12-25 23:56:45 -08005132static void do_s2io_store_unicast_mc(struct s2io_nic *sp)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005133{
5134 int offset;
5135 u64 mac_addr = 0x0;
5136 struct config_param *config = &sp->config;
5137
5138 /* store unicast & multicast mac addresses */
5139 for (offset = 0; offset < config->max_mc_addr; offset++) {
5140 mac_addr = do_s2io_read_unicast_mc(sp, offset);
5141 /* if read fails disable the entry */
5142 if (mac_addr == FAILURE)
5143 mac_addr = S2IO_DISABLE_MAC_ENTRY;
5144 do_s2io_copy_mac_addr(sp, offset, mac_addr);
5145 }
5146}
5147
5148/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
5149static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
5150{
5151 int offset;
5152 struct config_param *config = &sp->config;
5153 /* restore unicast mac address */
5154 for (offset = 0; offset < config->max_mac_addr; offset++)
5155 do_s2io_prog_unicast(sp->dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005156 sp->def_mac_addr[offset].mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005157
5158 /* restore multicast mac address */
5159 for (offset = config->mc_start_offset;
Joe Perchesd44570e2009-08-24 17:29:44 +00005160 offset < config->max_mc_addr; offset++)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005161 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
5162}
5163
5164/* add a multicast MAC address to CAM */
5165static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
5166{
5167 int i;
5168 u64 mac_addr = 0;
5169 struct config_param *config = &sp->config;
5170
5171 for (i = 0; i < ETH_ALEN; i++) {
5172 mac_addr <<= 8;
5173 mac_addr |= addr[i];
5174 }
5175 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
5176 return SUCCESS;
5177
5178 /* check if the multicast mac already preset in CAM */
5179 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
5180 u64 tmp64;
5181 tmp64 = do_s2io_read_unicast_mc(sp, i);
5182 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5183 break;
5184
5185 if (tmp64 == mac_addr)
5186 return SUCCESS;
5187 }
5188 if (i == config->max_mc_addr) {
5189 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005190 "CAM full no space left for multicast MAC\n");
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005191 return FAILURE;
5192 }
5193 /* Update the internal structure with this new mac address */
5194 do_s2io_copy_mac_addr(sp, i, mac_addr);
5195
Joe Perchesd44570e2009-08-24 17:29:44 +00005196 return do_s2io_add_mac(sp, mac_addr, i);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005197}
5198
5199/* add MAC address to CAM */
5200static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005201{
5202 u64 val64;
5203 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5204
5205 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
Joe Perchesd44570e2009-08-24 17:29:44 +00005206 &bar0->rmac_addr_data0_mem);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005207
Joe Perchesd44570e2009-08-24 17:29:44 +00005208 val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005209 RMAC_ADDR_CMD_MEM_OFFSET(off);
5210 writeq(val64, &bar0->rmac_addr_cmd_mem);
5211
5212 /* Wait till command completes */
5213 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005214 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5215 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005216 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005217 return FAILURE;
5218 }
5219 return SUCCESS;
5220}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005221/* deletes a specified unicast/multicast mac entry from CAM */
5222static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5223{
5224 int offset;
5225 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5226 struct config_param *config = &sp->config;
5227
5228 for (offset = 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00005229 offset < config->max_mc_addr; offset++) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005230 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5231 if (tmp64 == addr) {
5232 /* disable the entry by writing 0xffffffffffffULL */
5233 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5234 return FAILURE;
5235 /* store the new mac list from CAM */
5236 do_s2io_store_unicast_mc(sp);
5237 return SUCCESS;
5238 }
5239 }
5240 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00005241 (unsigned long long)addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005242 return FAILURE;
5243}
5244
5245/* read mac entries from CAM */
5246static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5247{
5248 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5249 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5250
5251 /* read mac addr */
Joe Perchesd44570e2009-08-24 17:29:44 +00005252 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005253 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5254 writeq(val64, &bar0->rmac_addr_cmd_mem);
5255
5256 /* Wait till command completes */
5257 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005258 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5259 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005260 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5261 return FAILURE;
5262 }
5263 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00005264
5265 return tmp64 >> 16;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005266}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005267
Linus Torvalds1da177e2005-04-16 15:20:36 -07005268/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005269 * s2io_set_mac_addr driver entry point
5270 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005271
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005272static int s2io_set_mac_addr(struct net_device *dev, void *p)
5273{
5274 struct sockaddr *addr = p;
5275
5276 if (!is_valid_ether_addr(addr->sa_data))
5277 return -EINVAL;
5278
5279 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5280
5281 /* store the MAC address in CAM */
Joe Perchesd44570e2009-08-24 17:29:44 +00005282 return do_s2io_prog_unicast(dev, dev->dev_addr);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005283}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005284/**
5285 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005286 * @dev : pointer to the device structure.
5287 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005288 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005289 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005290 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005291 * as defined in errno.h file on failure.
5292 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005293
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005294static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005295{
Wang Chen4cf16532008-11-12 23:38:14 -08005296 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005297 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005298 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005299 u64 tmp64;
5300 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005301
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005302 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00005303 * Set the new MAC address as the new unicast filter and reflect this
5304 * change on the device address registered with the OS. It will be
5305 * at offset 0.
5306 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005307 for (i = 0; i < ETH_ALEN; i++) {
5308 mac_addr <<= 8;
5309 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005310 perm_addr <<= 8;
5311 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005312 }
5313
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005314 /* check if the dev_addr is different than perm_addr */
5315 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005316 return SUCCESS;
5317
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005318 /* check if the mac already preset in CAM */
5319 for (i = 1; i < config->max_mac_addr; i++) {
5320 tmp64 = do_s2io_read_unicast_mc(sp, i);
5321 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5322 break;
5323
5324 if (tmp64 == mac_addr) {
5325 DBG_PRINT(INFO_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005326 "MAC addr:0x%llx already present in CAM\n",
5327 (unsigned long long)mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005328 return SUCCESS;
5329 }
5330 }
5331 if (i == config->max_mac_addr) {
5332 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5333 return FAILURE;
5334 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005335 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005336 do_s2io_copy_mac_addr(sp, i, mac_addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00005337
5338 return do_s2io_add_mac(sp, mac_addr, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005339}
5340
5341/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005342 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005343 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5344 * @info: pointer to the structure with parameters given by ethtool to set
5345 * link information.
5346 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005347 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005348 * the NIC.
5349 * Return value:
5350 * 0 on success.
Joe Perchesd44570e2009-08-24 17:29:44 +00005351 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005352
5353static int s2io_ethtool_sset(struct net_device *dev,
5354 struct ethtool_cmd *info)
5355{
Wang Chen4cf16532008-11-12 23:38:14 -08005356 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005357 if ((info->autoneg == AUTONEG_ENABLE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005358 (info->speed != SPEED_10000) ||
5359 (info->duplex != DUPLEX_FULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005360 return -EINVAL;
5361 else {
5362 s2io_close(sp->dev);
5363 s2io_open(sp->dev);
5364 }
5365
5366 return 0;
5367}
5368
5369/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005370 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005371 * @sp : private member of the device structure, pointer to the
5372 * s2io_nic structure.
5373 * @info : pointer to the structure with parameters given by ethtool
5374 * to return link information.
5375 * Description:
5376 * Returns link specific information like speed, duplex etc.. to ethtool.
5377 * Return value :
5378 * return 0 on success.
5379 */
5380
5381static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5382{
Wang Chen4cf16532008-11-12 23:38:14 -08005383 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005384 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5385 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5386 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005387
5388 /* info->transceiver */
5389 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005390
5391 if (netif_carrier_ok(sp->dev)) {
5392 info->speed = 10000;
5393 info->duplex = DUPLEX_FULL;
5394 } else {
5395 info->speed = -1;
5396 info->duplex = -1;
5397 }
5398
5399 info->autoneg = AUTONEG_DISABLE;
5400 return 0;
5401}
5402
5403/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005404 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5405 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005406 * s2io_nic structure.
5407 * @info : pointer to the structure with parameters given by ethtool to
5408 * return driver information.
5409 * Description:
5410 * Returns driver specefic information like name, version etc.. to ethtool.
5411 * Return value:
5412 * void
5413 */
5414
5415static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5416 struct ethtool_drvinfo *info)
5417{
Wang Chen4cf16532008-11-12 23:38:14 -08005418 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005419
John W. Linvilledbc23092005-09-28 17:50:51 -04005420 strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
5421 strncpy(info->version, s2io_driver_version, sizeof(info->version));
5422 strncpy(info->fw_version, "", sizeof(info->fw_version));
5423 strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005424 info->regdump_len = XENA_REG_SPACE;
5425 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005426}
5427
5428/**
5429 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005430 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005431 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005432 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005433 * dumping the registers.
5434 * @reg_space: The input argumnet into which all the registers are dumped.
5435 * Description:
5436 * Dumps the entire register space of xFrame NIC into the user given
5437 * buffer area.
5438 * Return value :
5439 * void .
Joe Perchesd44570e2009-08-24 17:29:44 +00005440 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005441
5442static void s2io_ethtool_gregs(struct net_device *dev,
5443 struct ethtool_regs *regs, void *space)
5444{
5445 int i;
5446 u64 reg;
Joe Perchesd44570e2009-08-24 17:29:44 +00005447 u8 *reg_space = (u8 *)space;
Wang Chen4cf16532008-11-12 23:38:14 -08005448 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005449
5450 regs->len = XENA_REG_SPACE;
5451 regs->version = sp->pdev->subsystem_device;
5452
5453 for (i = 0; i < regs->len; i += 8) {
5454 reg = readq(sp->bar0 + i);
5455 memcpy((reg_space + i), &reg, 8);
5456 }
5457}
5458
5459/**
5460 * s2io_phy_id - timer function that alternates adapter LED.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005461 * @data : address of the private member of the device structure, which
Linus Torvalds1da177e2005-04-16 15:20:36 -07005462 * is a pointer to the s2io_nic structure, provided as an u32.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005463 * Description: This is actually the timer function that alternates the
5464 * adapter LED bit of the adapter control bit to set/reset every time on
5465 * invocation. The timer is set for 1/2 a second, hence tha NIC blinks
Linus Torvalds1da177e2005-04-16 15:20:36 -07005466 * once every second.
Joe Perchesd44570e2009-08-24 17:29:44 +00005467 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005468static void s2io_phy_id(unsigned long data)
5469{
Joe Perchesd44570e2009-08-24 17:29:44 +00005470 struct s2io_nic *sp = (struct s2io_nic *)data;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005471 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005472 u64 val64 = 0;
5473 u16 subid;
5474
5475 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005476 if ((sp->device_type == XFRAME_II_DEVICE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005477 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005478 val64 = readq(&bar0->gpio_control);
5479 val64 ^= GPIO_CTRL_GPIO_0;
5480 writeq(val64, &bar0->gpio_control);
5481 } else {
5482 val64 = readq(&bar0->adapter_control);
5483 val64 ^= ADAPTER_LED_ON;
5484 writeq(val64, &bar0->adapter_control);
5485 }
5486
5487 mod_timer(&sp->id_timer, jiffies + HZ / 2);
5488}
5489
5490/**
5491 * s2io_ethtool_idnic - To physically identify the nic on the system.
5492 * @sp : private member of the device structure, which is a pointer to the
5493 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005494 * @id : pointer to the structure with identification parameters given by
Linus Torvalds1da177e2005-04-16 15:20:36 -07005495 * ethtool.
5496 * Description: Used to physically identify the NIC on the system.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005497 * The Link LED will blink for a time specified by the user for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005498 * identification.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005499 * NOTE: The Link has to be Up to be able to blink the LED. Hence
Linus Torvalds1da177e2005-04-16 15:20:36 -07005500 * identification is possible only if it's link is up.
5501 * Return value:
5502 * int , returns 0 on success
5503 */
5504
5505static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
5506{
5507 u64 val64 = 0, last_gpio_ctrl_val;
Wang Chen4cf16532008-11-12 23:38:14 -08005508 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005509 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005510 u16 subid;
5511
5512 subid = sp->pdev->subsystem_device;
5513 last_gpio_ctrl_val = readq(&bar0->gpio_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00005514 if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005515 val64 = readq(&bar0->adapter_control);
5516 if (!(val64 & ADAPTER_CNTL_EN)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00005517 pr_err("Adapter Link down, cannot blink LED\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005518 return -EFAULT;
5519 }
5520 }
5521 if (sp->id_timer.function == NULL) {
5522 init_timer(&sp->id_timer);
5523 sp->id_timer.function = s2io_phy_id;
Joe Perchesd44570e2009-08-24 17:29:44 +00005524 sp->id_timer.data = (unsigned long)sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005525 }
5526 mod_timer(&sp->id_timer, jiffies);
5527 if (data)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005528 msleep_interruptible(data * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005529 else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005530 msleep_interruptible(MAX_FLICKER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005531 del_timer_sync(&sp->id_timer);
5532
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005533 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005534 writeq(last_gpio_ctrl_val, &bar0->gpio_control);
5535 last_gpio_ctrl_val = readq(&bar0->gpio_control);
5536 }
5537
5538 return 0;
5539}
5540
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005541static void s2io_ethtool_gringparam(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005542 struct ethtool_ringparam *ering)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005543{
Wang Chen4cf16532008-11-12 23:38:14 -08005544 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00005545 int i, tx_desc_count = 0, rx_desc_count = 0;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005546
5547 if (sp->rxd_mode == RXD_MODE_1)
5548 ering->rx_max_pending = MAX_RX_DESC_1;
5549 else if (sp->rxd_mode == RXD_MODE_3B)
5550 ering->rx_max_pending = MAX_RX_DESC_2;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005551
5552 ering->tx_max_pending = MAX_TX_DESC;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005553 for (i = 0 ; i < sp->config.tx_fifo_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005554 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005555
Joe Perches9e39f7c2009-08-25 08:52:00 +00005556 DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds);
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005557 ering->tx_pending = tx_desc_count;
5558 rx_desc_count = 0;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005559 for (i = 0 ; i < sp->config.rx_ring_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005560 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
Veena Paratb6627672007-07-23 02:39:43 -04005561
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005562 ering->rx_pending = rx_desc_count;
5563
5564 ering->rx_mini_max_pending = 0;
5565 ering->rx_mini_pending = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00005566 if (sp->rxd_mode == RXD_MODE_1)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005567 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5568 else if (sp->rxd_mode == RXD_MODE_3B)
5569 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5570 ering->rx_jumbo_pending = rx_desc_count;
5571}
5572
Linus Torvalds1da177e2005-04-16 15:20:36 -07005573/**
5574 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005575 * @sp : private member of the device structure, which is a pointer to the
5576 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005577 * @ep : pointer to the structure with pause parameters given by ethtool.
5578 * Description:
5579 * Returns the Pause frame generation and reception capability of the NIC.
5580 * Return value:
5581 * void
5582 */
5583static void s2io_ethtool_getpause_data(struct net_device *dev,
5584 struct ethtool_pauseparam *ep)
5585{
5586 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005587 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005588 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005589
5590 val64 = readq(&bar0->rmac_pause_cfg);
5591 if (val64 & RMAC_PAUSE_GEN_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005592 ep->tx_pause = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005593 if (val64 & RMAC_PAUSE_RX_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005594 ep->rx_pause = true;
5595 ep->autoneg = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005596}
5597
5598/**
5599 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005600 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005601 * s2io_nic structure.
5602 * @ep : pointer to the structure with pause parameters given by ethtool.
5603 * Description:
5604 * It can be used to set or reset Pause frame generation or reception
5605 * support of the NIC.
5606 * Return value:
5607 * int, returns 0 on Success
5608 */
5609
5610static int s2io_ethtool_setpause_data(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005611 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005612{
5613 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005614 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005615 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005616
5617 val64 = readq(&bar0->rmac_pause_cfg);
5618 if (ep->tx_pause)
5619 val64 |= RMAC_PAUSE_GEN_ENABLE;
5620 else
5621 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5622 if (ep->rx_pause)
5623 val64 |= RMAC_PAUSE_RX_ENABLE;
5624 else
5625 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5626 writeq(val64, &bar0->rmac_pause_cfg);
5627 return 0;
5628}
5629
5630/**
5631 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005632 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005633 * s2io_nic structure.
5634 * @off : offset at which the data must be written
5635 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005636 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005637 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005638 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005639 * read data.
5640 * NOTE: Will allow to read only part of the EEPROM visible through the
5641 * I2C bus.
5642 * Return value:
5643 * -1 on failure and 0 on success.
5644 */
5645
5646#define S2IO_DEV_ID 5
Joe Perchesd44570e2009-08-24 17:29:44 +00005647static int read_eeprom(struct s2io_nic *sp, int off, u64 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005648{
5649 int ret = -1;
5650 u32 exit_cnt = 0;
5651 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005652 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005653
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005654 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005655 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5656 I2C_CONTROL_ADDR(off) |
5657 I2C_CONTROL_BYTE_CNT(0x3) |
5658 I2C_CONTROL_READ |
5659 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005660 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005661
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005662 while (exit_cnt < 5) {
5663 val64 = readq(&bar0->i2c_control);
5664 if (I2C_CONTROL_CNTL_END(val64)) {
5665 *data = I2C_CONTROL_GET_DATA(val64);
5666 ret = 0;
5667 break;
5668 }
5669 msleep(50);
5670 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005671 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005672 }
5673
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005674 if (sp->device_type == XFRAME_II_DEVICE) {
5675 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005676 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005677 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5678 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5679 val64 |= SPI_CONTROL_REQ;
5680 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5681 while (exit_cnt < 5) {
5682 val64 = readq(&bar0->spi_control);
5683 if (val64 & SPI_CONTROL_NACK) {
5684 ret = 1;
5685 break;
5686 } else if (val64 & SPI_CONTROL_DONE) {
5687 *data = readq(&bar0->spi_data);
5688 *data &= 0xffffff;
5689 ret = 0;
5690 break;
5691 }
5692 msleep(50);
5693 exit_cnt++;
5694 }
5695 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005696 return ret;
5697}
5698
5699/**
5700 * write_eeprom - actually writes the relevant part of the data value.
5701 * @sp : private member of the device structure, which is a pointer to the
5702 * s2io_nic structure.
5703 * @off : offset at which the data must be written
5704 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005705 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005706 * the Eeprom. (max of 3)
5707 * Description:
5708 * Actually writes the relevant part of the data value into the Eeprom
5709 * through the I2C bus.
5710 * Return value:
5711 * 0 on success, -1 on failure.
5712 */
5713
Joe Perchesd44570e2009-08-24 17:29:44 +00005714static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005715{
5716 int exit_cnt = 0, ret = -1;
5717 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005718 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005719
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005720 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005721 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5722 I2C_CONTROL_ADDR(off) |
5723 I2C_CONTROL_BYTE_CNT(cnt) |
5724 I2C_CONTROL_SET_DATA((u32)data) |
5725 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005726 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005727
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005728 while (exit_cnt < 5) {
5729 val64 = readq(&bar0->i2c_control);
5730 if (I2C_CONTROL_CNTL_END(val64)) {
5731 if (!(val64 & I2C_CONTROL_NACK))
5732 ret = 0;
5733 break;
5734 }
5735 msleep(50);
5736 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005737 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005738 }
5739
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005740 if (sp->device_type == XFRAME_II_DEVICE) {
5741 int write_cnt = (cnt == 8) ? 0 : cnt;
Joe Perchesd44570e2009-08-24 17:29:44 +00005742 writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005743
5744 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005745 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005746 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5747 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5748 val64 |= SPI_CONTROL_REQ;
5749 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5750 while (exit_cnt < 5) {
5751 val64 = readq(&bar0->spi_control);
5752 if (val64 & SPI_CONTROL_NACK) {
5753 ret = 1;
5754 break;
5755 } else if (val64 & SPI_CONTROL_DONE) {
5756 ret = 0;
5757 break;
5758 }
5759 msleep(50);
5760 exit_cnt++;
5761 }
5762 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005763 return ret;
5764}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005765static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005766{
Ananda Rajub41477f2006-07-24 19:52:49 -04005767 u8 *vpd_data;
5768 u8 data;
Joe Perchesd44570e2009-08-24 17:29:44 +00005769 int i = 0, cnt, fail = 0;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005770 int vpd_addr = 0x80;
Joe Perchesffb5df62009-08-24 17:29:47 +00005771 struct swStat *swstats = &nic->mac_control.stats_info->sw_stat;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005772
5773 if (nic->device_type == XFRAME_II_DEVICE) {
5774 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5775 vpd_addr = 0x80;
Joe Perchesd44570e2009-08-24 17:29:44 +00005776 } else {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005777 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5778 vpd_addr = 0x50;
5779 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005780 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005781
Ananda Rajub41477f2006-07-24 19:52:49 -04005782 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005783 if (!vpd_data) {
Joe Perchesffb5df62009-08-24 17:29:47 +00005784 swstats->mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005785 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005786 }
Joe Perchesffb5df62009-08-24 17:29:47 +00005787 swstats->mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005788
Joe Perchesd44570e2009-08-24 17:29:44 +00005789 for (i = 0; i < 256; i += 4) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005790 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5791 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5792 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
Joe Perchesd44570e2009-08-24 17:29:44 +00005793 for (cnt = 0; cnt < 5; cnt++) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005794 msleep(2);
5795 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5796 if (data == 0x80)
5797 break;
5798 }
5799 if (cnt >= 5) {
5800 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5801 fail = 1;
5802 break;
5803 }
5804 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5805 (u32 *)&vpd_data[i]);
5806 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005807
Joe Perchesd44570e2009-08-24 17:29:44 +00005808 if (!fail) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005809 /* read serial number of adapter */
5810 for (cnt = 0; cnt < 256; cnt++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005811 if ((vpd_data[cnt] == 'S') &&
5812 (vpd_data[cnt+1] == 'N') &&
5813 (vpd_data[cnt+2] < VPD_STRING_LEN)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005814 memset(nic->serial_num, 0, VPD_STRING_LEN);
5815 memcpy(nic->serial_num, &vpd_data[cnt + 3],
Joe Perchesd44570e2009-08-24 17:29:44 +00005816 vpd_data[cnt+2]);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005817 break;
5818 }
5819 }
5820 }
5821
5822 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005823 memset(nic->product_name, 0, vpd_data[1]);
5824 memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
5825 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005826 kfree(vpd_data);
Joe Perchesffb5df62009-08-24 17:29:47 +00005827 swstats->mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005828}
5829
Linus Torvalds1da177e2005-04-16 15:20:36 -07005830/**
5831 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5832 * @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 -07005833 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005834 * containing all relevant information.
5835 * @data_buf : user defined value to be written into Eeprom.
5836 * Description: Reads the values stored in the Eeprom at given offset
5837 * for a given length. Stores these values int the input argument data
5838 * buffer 'data_buf' and returns these to the caller (ethtool.)
5839 * Return value:
5840 * int 0 on success
5841 */
5842
5843static int s2io_ethtool_geeprom(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005844 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005845{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005846 u32 i, valid;
5847 u64 data;
Wang Chen4cf16532008-11-12 23:38:14 -08005848 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005849
5850 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5851
5852 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5853 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5854
5855 for (i = 0; i < eeprom->len; i += 4) {
5856 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5857 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5858 return -EFAULT;
5859 }
5860 valid = INV(data);
5861 memcpy((data_buf + i), &valid, 4);
5862 }
5863 return 0;
5864}
5865
5866/**
5867 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5868 * @sp : private member of the device structure, which is a pointer to the
5869 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005870 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005871 * containing all relevant information.
5872 * @data_buf ; user defined value to be written into Eeprom.
5873 * Description:
5874 * Tries to write the user provided value in the Eeprom, at the offset
5875 * given by the user.
5876 * Return value:
5877 * 0 on success, -EFAULT on failure.
5878 */
5879
5880static int s2io_ethtool_seeprom(struct net_device *dev,
5881 struct ethtool_eeprom *eeprom,
Joe Perchesd44570e2009-08-24 17:29:44 +00005882 u8 *data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005883{
5884 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005885 u64 valid = 0, data;
Wang Chen4cf16532008-11-12 23:38:14 -08005886 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005887
5888 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5889 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005890 "ETHTOOL_WRITE_EEPROM Err: "
5891 "Magic value is wrong, it is 0x%x should be 0x%x\n",
5892 (sp->pdev->vendor | (sp->pdev->device << 16)),
5893 eeprom->magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005894 return -EFAULT;
5895 }
5896
5897 while (len) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005898 data = (u32)data_buf[cnt] & 0x000000FF;
5899 if (data)
5900 valid = (u32)(data << 24);
5901 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07005902 valid = data;
5903
5904 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5905 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005906 "ETHTOOL_WRITE_EEPROM Err: "
5907 "Cannot write into the specified offset\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005908 return -EFAULT;
5909 }
5910 cnt++;
5911 len--;
5912 }
5913
5914 return 0;
5915}
5916
5917/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005918 * s2io_register_test - reads and writes into all clock domains.
5919 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005920 * s2io_nic structure.
5921 * @data : variable that returns the result of each of the test conducted b
5922 * by the driver.
5923 * Description:
5924 * Read and write into all clock domains. The NIC has 3 clock domains,
5925 * see that registers in all the three regions are accessible.
5926 * Return value:
5927 * 0 on success.
5928 */
5929
Joe Perchesd44570e2009-08-24 17:29:44 +00005930static int s2io_register_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005931{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005932 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005933 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005934 int fail = 0;
5935
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005936 val64 = readq(&bar0->pif_rd_swapper_fb);
5937 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005938 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005939 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005940 }
5941
5942 val64 = readq(&bar0->rmac_pause_cfg);
5943 if (val64 != 0xc000ffff00000000ULL) {
5944 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005945 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005946 }
5947
5948 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005949 if (sp->device_type == XFRAME_II_DEVICE)
5950 exp_val = 0x0404040404040404ULL;
5951 else
5952 exp_val = 0x0808080808080808ULL;
5953 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005954 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005955 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005956 }
5957
5958 val64 = readq(&bar0->xgxs_efifo_cfg);
5959 if (val64 != 0x000000001923141EULL) {
5960 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005961 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005962 }
5963
5964 val64 = 0x5A5A5A5A5A5A5A5AULL;
5965 writeq(val64, &bar0->xmsi_data);
5966 val64 = readq(&bar0->xmsi_data);
5967 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5968 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005969 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005970 }
5971
5972 val64 = 0xA5A5A5A5A5A5A5A5ULL;
5973 writeq(val64, &bar0->xmsi_data);
5974 val64 = readq(&bar0->xmsi_data);
5975 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
5976 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005977 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005978 }
5979
5980 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005981 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005982}
5983
5984/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005985 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005986 * @sp : private member of the device structure, which is a pointer to the
5987 * s2io_nic structure.
5988 * @data:variable that returns the result of each of the test conducted by
5989 * the driver.
5990 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005991 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07005992 * register.
5993 * Return value:
5994 * 0 on success.
5995 */
5996
Joe Perchesd44570e2009-08-24 17:29:44 +00005997static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005998{
5999 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006000 u64 ret_data, org_4F0, org_7F0;
6001 u8 saved_4F0 = 0, saved_7F0 = 0;
6002 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006003
6004 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006005 /* Note that SPI interface allows write access to all areas
6006 * of EEPROM. Hence doing all negative testing only for Xframe I.
6007 */
6008 if (sp->device_type == XFRAME_I_DEVICE)
6009 if (!write_eeprom(sp, 0, 0, 3))
6010 fail = 1;
6011
6012 /* Save current values at offsets 0x4F0 and 0x7F0 */
6013 if (!read_eeprom(sp, 0x4F0, &org_4F0))
6014 saved_4F0 = 1;
6015 if (!read_eeprom(sp, 0x7F0, &org_7F0))
6016 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006017
6018 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006019 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006020 fail = 1;
6021 if (read_eeprom(sp, 0x4F0, &ret_data))
6022 fail = 1;
6023
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006024 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006025 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006026 "Data written %llx Data read %llx\n",
6027 dev->name, (unsigned long long)0x12345,
6028 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006029 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006030 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006031
6032 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006033 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006034
6035 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006036 if (sp->device_type == XFRAME_I_DEVICE)
6037 if (!write_eeprom(sp, 0x07C, 0, 3))
6038 fail = 1;
6039
6040 /* Test Write Request at offset 0x7f0 */
6041 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
6042 fail = 1;
6043 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006044 fail = 1;
6045
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006046 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006047 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006048 "Data written %llx Data read %llx\n",
6049 dev->name, (unsigned long long)0x12345,
6050 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006052 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006053
6054 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006055 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006056
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006057 if (sp->device_type == XFRAME_I_DEVICE) {
6058 /* Test Write Error at offset 0x80 */
6059 if (!write_eeprom(sp, 0x080, 0, 3))
6060 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006061
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006062 /* Test Write Error at offset 0xfc */
6063 if (!write_eeprom(sp, 0x0FC, 0, 3))
6064 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006065
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006066 /* Test Write Error at offset 0x100 */
6067 if (!write_eeprom(sp, 0x100, 0, 3))
6068 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006069
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006070 /* Test Write Error at offset 4ec */
6071 if (!write_eeprom(sp, 0x4EC, 0, 3))
6072 fail = 1;
6073 }
6074
6075 /* Restore values at offsets 0x4F0 and 0x7F0 */
6076 if (saved_4F0)
6077 write_eeprom(sp, 0x4F0, org_4F0, 3);
6078 if (saved_7F0)
6079 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006080
6081 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006082 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006083}
6084
6085/**
6086 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006087 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006088 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006089 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07006090 * the driver.
6091 * Description:
6092 * This invokes the MemBist test of the card. We give around
6093 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006094 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006095 * Return value:
6096 * 0 on success and -1 on failure.
6097 */
6098
Joe Perchesd44570e2009-08-24 17:29:44 +00006099static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006100{
6101 u8 bist = 0;
6102 int cnt = 0, ret = -1;
6103
6104 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6105 bist |= PCI_BIST_START;
6106 pci_write_config_word(sp->pdev, PCI_BIST, bist);
6107
6108 while (cnt < 20) {
6109 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6110 if (!(bist & PCI_BIST_START)) {
6111 *data = (bist & PCI_BIST_CODE_MASK);
6112 ret = 0;
6113 break;
6114 }
6115 msleep(100);
6116 cnt++;
6117 }
6118
6119 return ret;
6120}
6121
6122/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006123 * s2io-link_test - verifies the link state of the nic
6124 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006125 * s2io_nic structure.
6126 * @data: variable that returns the result of each of the test conducted by
6127 * the driver.
6128 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006129 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07006130 * argument 'data' appropriately.
6131 * Return value:
6132 * 0 on success.
6133 */
6134
Joe Perchesd44570e2009-08-24 17:29:44 +00006135static int s2io_link_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006136{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006137 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006138 u64 val64;
6139
6140 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00006141 if (!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006142 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04006143 else
6144 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006145
Ananda Rajub41477f2006-07-24 19:52:49 -04006146 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006147}
6148
6149/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006150 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
6151 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006152 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006153 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006154 * conducted by the driver.
6155 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006156 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07006157 * access to the RldRam chip on the NIC.
6158 * Return value:
6159 * 0 on success.
6160 */
6161
Joe Perchesd44570e2009-08-24 17:29:44 +00006162static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006163{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006164 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006165 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006166 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006167
6168 val64 = readq(&bar0->adapter_control);
6169 val64 &= ~ADAPTER_ECC_EN;
6170 writeq(val64, &bar0->adapter_control);
6171
6172 val64 = readq(&bar0->mc_rldram_test_ctrl);
6173 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006174 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006175
6176 val64 = readq(&bar0->mc_rldram_mrs);
6177 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
6178 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6179
6180 val64 |= MC_RLDRAM_MRS_ENABLE;
6181 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6182
6183 while (iteration < 2) {
6184 val64 = 0x55555555aaaa0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006185 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006186 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006187 writeq(val64, &bar0->mc_rldram_test_d0);
6188
6189 val64 = 0xaaaa5a5555550000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006190 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006191 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006192 writeq(val64, &bar0->mc_rldram_test_d1);
6193
6194 val64 = 0x55aaaaaaaa5a0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006195 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006196 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006197 writeq(val64, &bar0->mc_rldram_test_d2);
6198
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006199 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006200 writeq(val64, &bar0->mc_rldram_test_add);
6201
Joe Perchesd44570e2009-08-24 17:29:44 +00006202 val64 = MC_RLDRAM_TEST_MODE |
6203 MC_RLDRAM_TEST_WRITE |
6204 MC_RLDRAM_TEST_GO;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006205 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006206
6207 for (cnt = 0; cnt < 5; cnt++) {
6208 val64 = readq(&bar0->mc_rldram_test_ctrl);
6209 if (val64 & MC_RLDRAM_TEST_DONE)
6210 break;
6211 msleep(200);
6212 }
6213
6214 if (cnt == 5)
6215 break;
6216
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006217 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6218 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006219
6220 for (cnt = 0; cnt < 5; cnt++) {
6221 val64 = readq(&bar0->mc_rldram_test_ctrl);
6222 if (val64 & MC_RLDRAM_TEST_DONE)
6223 break;
6224 msleep(500);
6225 }
6226
6227 if (cnt == 5)
6228 break;
6229
6230 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006231 if (!(val64 & MC_RLDRAM_TEST_PASS))
6232 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006233
6234 iteration++;
6235 }
6236
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006237 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006238
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006239 /* Bring the adapter out of test mode */
6240 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6241
6242 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006243}
6244
6245/**
6246 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6247 * @sp : private member of the device structure, which is a pointer to the
6248 * s2io_nic structure.
6249 * @ethtest : pointer to a ethtool command specific structure that will be
6250 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006251 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006252 * conducted by the driver.
6253 * Description:
6254 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6255 * the health of the card.
6256 * Return value:
6257 * void
6258 */
6259
6260static void s2io_ethtool_test(struct net_device *dev,
6261 struct ethtool_test *ethtest,
Joe Perchesd44570e2009-08-24 17:29:44 +00006262 uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006263{
Wang Chen4cf16532008-11-12 23:38:14 -08006264 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006265 int orig_state = netif_running(sp->dev);
6266
6267 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6268 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006269 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006270 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006271
6272 if (s2io_register_test(sp, &data[0]))
6273 ethtest->flags |= ETH_TEST_FL_FAILED;
6274
6275 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006276
6277 if (s2io_rldram_test(sp, &data[3]))
6278 ethtest->flags |= ETH_TEST_FL_FAILED;
6279
6280 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006281
6282 if (s2io_eeprom_test(sp, &data[1]))
6283 ethtest->flags |= ETH_TEST_FL_FAILED;
6284
6285 if (s2io_bist_test(sp, &data[4]))
6286 ethtest->flags |= ETH_TEST_FL_FAILED;
6287
6288 if (orig_state)
6289 s2io_open(sp->dev);
6290
6291 data[2] = 0;
6292 } else {
6293 /* Online Tests. */
6294 if (!orig_state) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006295 DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006296 dev->name);
6297 data[0] = -1;
6298 data[1] = -1;
6299 data[2] = -1;
6300 data[3] = -1;
6301 data[4] = -1;
6302 }
6303
6304 if (s2io_link_test(sp, &data[2]))
6305 ethtest->flags |= ETH_TEST_FL_FAILED;
6306
6307 data[0] = 0;
6308 data[1] = 0;
6309 data[3] = 0;
6310 data[4] = 0;
6311 }
6312}
6313
6314static void s2io_get_ethtool_stats(struct net_device *dev,
6315 struct ethtool_stats *estats,
Joe Perchesd44570e2009-08-24 17:29:44 +00006316 u64 *tmp_stats)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006317{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006318 int i = 0, k;
Wang Chen4cf16532008-11-12 23:38:14 -08006319 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00006320 struct stat_block *stats = sp->mac_control.stats_info;
6321 struct swStat *swstats = &stats->sw_stat;
6322 struct xpakStat *xstats = &stats->xpak_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006323
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006324 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006325 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006326 (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 |
6327 le32_to_cpu(stats->tmac_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006328 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006329 (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
6330 le32_to_cpu(stats->tmac_data_octets);
6331 tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006332 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006333 (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 |
6334 le32_to_cpu(stats->tmac_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006335 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006336 (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 |
6337 le32_to_cpu(stats->tmac_bcst_frms);
6338 tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006339 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006340 (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 |
6341 le32_to_cpu(stats->tmac_ttl_octets);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006342 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006343 (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 |
6344 le32_to_cpu(stats->tmac_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006345 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006346 (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 |
6347 le32_to_cpu(stats->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006348 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006349 (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
6350 le32_to_cpu(stats->tmac_any_err_frms);
6351 tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets);
6352 tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets);
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_vld_ip_oflow) << 32 |
6355 le32_to_cpu(stats->tmac_vld_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006356 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006357 (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 |
6358 le32_to_cpu(stats->tmac_drop_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006359 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006360 (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 |
6361 le32_to_cpu(stats->tmac_icmp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006362 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006363 (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 |
6364 le32_to_cpu(stats->tmac_rst_tcp);
6365 tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp);
6366 tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 |
6367 le32_to_cpu(stats->tmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006368 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006369 (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
6370 le32_to_cpu(stats->rmac_vld_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006371 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006372 (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
6373 le32_to_cpu(stats->rmac_data_octets);
6374 tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms);
6375 tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006376 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006377 (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
6378 le32_to_cpu(stats->rmac_vld_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006379 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006380 (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 |
6381 le32_to_cpu(stats->rmac_vld_bcst_frms);
6382 tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms);
6383 tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms);
6384 tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms);
6385 tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms);
6386 tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006387 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006388 (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 |
6389 le32_to_cpu(stats->rmac_ttl_octets);
Joe Perchesd44570e2009-08-24 17:29:44 +00006390 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006391 (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32
6392 | le32_to_cpu(stats->rmac_accepted_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006393 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006394 (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow)
6395 << 32 | le32_to_cpu(stats->rmac_accepted_nucst_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_discarded_frms_oflow) << 32 |
6398 le32_to_cpu(stats->rmac_discarded_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006399 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006400 (u64)le32_to_cpu(stats->rmac_drop_events_oflow)
6401 << 32 | le32_to_cpu(stats->rmac_drop_events);
6402 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets);
6403 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_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_usized_frms_oflow) << 32 |
6406 le32_to_cpu(stats->rmac_usized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006407 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006408 (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 |
6409 le32_to_cpu(stats->rmac_osized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006410 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006411 (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 |
6412 le32_to_cpu(stats->rmac_frag_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006413 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006414 (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 |
6415 le32_to_cpu(stats->rmac_jabber_frms);
6416 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms);
6417 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms);
6418 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms);
6419 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms);
6420 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms);
6421 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006422 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006423 (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 |
6424 le32_to_cpu(stats->rmac_ip);
6425 tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets);
6426 tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006427 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006428 (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 |
6429 le32_to_cpu(stats->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006430 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006431 (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 |
6432 le32_to_cpu(stats->rmac_icmp);
6433 tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006434 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006435 (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 |
6436 le32_to_cpu(stats->rmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006437 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006438 (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 |
6439 le32_to_cpu(stats->rmac_err_drp_udp);
6440 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym);
6441 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0);
6442 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1);
6443 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2);
6444 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3);
6445 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4);
6446 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5);
6447 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6);
6448 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7);
6449 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0);
6450 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1);
6451 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2);
6452 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3);
6453 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4);
6454 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5);
6455 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6);
6456 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006457 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006458 (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 |
6459 le32_to_cpu(stats->rmac_pause_cnt);
6460 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt);
6461 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt);
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_accepted_ip_oflow) << 32 |
6464 le32_to_cpu(stats->rmac_accepted_ip);
6465 tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp);
6466 tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt);
6467 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt);
6468 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt);
6469 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt);
6470 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt);
6471 tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt);
6472 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt);
6473 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt);
6474 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt);
6475 tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt);
6476 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt);
6477 tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt);
6478 tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt);
6479 tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt);
6480 tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt);
6481 tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt);
6482 tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt);
6483 tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006484
6485 /* Enhanced statistics exist only for Hercules */
Joe Perchesd44570e2009-08-24 17:29:44 +00006486 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006487 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006488 le64_to_cpu(stats->rmac_ttl_1519_4095_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006489 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006490 le64_to_cpu(stats->rmac_ttl_4096_8191_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006491 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006492 le64_to_cpu(stats->rmac_ttl_8192_max_frms);
6493 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms);
6494 tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms);
6495 tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms);
6496 tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms);
6497 tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms);
6498 tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard);
6499 tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard);
6500 tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard);
6501 tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard);
6502 tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard);
6503 tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard);
6504 tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard);
6505 tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006506 }
6507
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006508 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006509 tmp_stats[i++] = swstats->single_ecc_errs;
6510 tmp_stats[i++] = swstats->double_ecc_errs;
6511 tmp_stats[i++] = swstats->parity_err_cnt;
6512 tmp_stats[i++] = swstats->serious_err_cnt;
6513 tmp_stats[i++] = swstats->soft_reset_cnt;
6514 tmp_stats[i++] = swstats->fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006515 for (k = 0; k < MAX_RX_RINGS; k++)
Joe Perchesffb5df62009-08-24 17:29:47 +00006516 tmp_stats[i++] = swstats->ring_full_cnt[k];
6517 tmp_stats[i++] = xstats->alarm_transceiver_temp_high;
6518 tmp_stats[i++] = xstats->alarm_transceiver_temp_low;
6519 tmp_stats[i++] = xstats->alarm_laser_bias_current_high;
6520 tmp_stats[i++] = xstats->alarm_laser_bias_current_low;
6521 tmp_stats[i++] = xstats->alarm_laser_output_power_high;
6522 tmp_stats[i++] = xstats->alarm_laser_output_power_low;
6523 tmp_stats[i++] = xstats->warn_transceiver_temp_high;
6524 tmp_stats[i++] = xstats->warn_transceiver_temp_low;
6525 tmp_stats[i++] = xstats->warn_laser_bias_current_high;
6526 tmp_stats[i++] = xstats->warn_laser_bias_current_low;
6527 tmp_stats[i++] = xstats->warn_laser_output_power_high;
6528 tmp_stats[i++] = xstats->warn_laser_output_power_low;
6529 tmp_stats[i++] = swstats->clubbed_frms_cnt;
6530 tmp_stats[i++] = swstats->sending_both;
6531 tmp_stats[i++] = swstats->outof_sequence_pkts;
6532 tmp_stats[i++] = swstats->flush_max_pkts;
6533 if (swstats->num_aggregations) {
6534 u64 tmp = swstats->sum_avg_pkts_aggregated;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006535 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006536 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006537 * Since 64-bit divide does not work on all platforms,
6538 * do repeated subtraction.
6539 */
Joe Perchesffb5df62009-08-24 17:29:47 +00006540 while (tmp >= swstats->num_aggregations) {
6541 tmp -= swstats->num_aggregations;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006542 count++;
6543 }
6544 tmp_stats[i++] = count;
Joe Perchesd44570e2009-08-24 17:29:44 +00006545 } else
Ananda Rajubd1034f2006-04-21 19:20:22 -04006546 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006547 tmp_stats[i++] = swstats->mem_alloc_fail_cnt;
6548 tmp_stats[i++] = swstats->pci_map_fail_cnt;
6549 tmp_stats[i++] = swstats->watchdog_timer_cnt;
6550 tmp_stats[i++] = swstats->mem_allocated;
6551 tmp_stats[i++] = swstats->mem_freed;
6552 tmp_stats[i++] = swstats->link_up_cnt;
6553 tmp_stats[i++] = swstats->link_down_cnt;
6554 tmp_stats[i++] = swstats->link_up_time;
6555 tmp_stats[i++] = swstats->link_down_time;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006556
Joe Perchesffb5df62009-08-24 17:29:47 +00006557 tmp_stats[i++] = swstats->tx_buf_abort_cnt;
6558 tmp_stats[i++] = swstats->tx_desc_abort_cnt;
6559 tmp_stats[i++] = swstats->tx_parity_err_cnt;
6560 tmp_stats[i++] = swstats->tx_link_loss_cnt;
6561 tmp_stats[i++] = swstats->tx_list_proc_err_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006562
Joe Perchesffb5df62009-08-24 17:29:47 +00006563 tmp_stats[i++] = swstats->rx_parity_err_cnt;
6564 tmp_stats[i++] = swstats->rx_abort_cnt;
6565 tmp_stats[i++] = swstats->rx_parity_abort_cnt;
6566 tmp_stats[i++] = swstats->rx_rda_fail_cnt;
6567 tmp_stats[i++] = swstats->rx_unkn_prot_cnt;
6568 tmp_stats[i++] = swstats->rx_fcs_err_cnt;
6569 tmp_stats[i++] = swstats->rx_buf_size_err_cnt;
6570 tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt;
6571 tmp_stats[i++] = swstats->rx_unkn_err_cnt;
6572 tmp_stats[i++] = swstats->tda_err_cnt;
6573 tmp_stats[i++] = swstats->pfc_err_cnt;
6574 tmp_stats[i++] = swstats->pcc_err_cnt;
6575 tmp_stats[i++] = swstats->tti_err_cnt;
6576 tmp_stats[i++] = swstats->tpa_err_cnt;
6577 tmp_stats[i++] = swstats->sm_err_cnt;
6578 tmp_stats[i++] = swstats->lso_err_cnt;
6579 tmp_stats[i++] = swstats->mac_tmac_err_cnt;
6580 tmp_stats[i++] = swstats->mac_rmac_err_cnt;
6581 tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt;
6582 tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt;
6583 tmp_stats[i++] = swstats->rc_err_cnt;
6584 tmp_stats[i++] = swstats->prc_pcix_err_cnt;
6585 tmp_stats[i++] = swstats->rpa_err_cnt;
6586 tmp_stats[i++] = swstats->rda_err_cnt;
6587 tmp_stats[i++] = swstats->rti_err_cnt;
6588 tmp_stats[i++] = swstats->mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006589}
6590
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006591static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006592{
Joe Perchesd44570e2009-08-24 17:29:44 +00006593 return XENA_REG_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006594}
6595
6596
Joe Perchesd44570e2009-08-24 17:29:44 +00006597static u32 s2io_ethtool_get_rx_csum(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006598{
Wang Chen4cf16532008-11-12 23:38:14 -08006599 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006600
Joe Perchesd44570e2009-08-24 17:29:44 +00006601 return sp->rx_csum;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006602}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006603
6604static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006605{
Wang Chen4cf16532008-11-12 23:38:14 -08006606 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006607
6608 if (data)
6609 sp->rx_csum = 1;
6610 else
6611 sp->rx_csum = 0;
6612
6613 return 0;
6614}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006615
6616static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006617{
Joe Perchesd44570e2009-08-24 17:29:44 +00006618 return XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006619}
6620
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006621static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006622{
Wang Chen4cf16532008-11-12 23:38:14 -08006623 struct s2io_nic *sp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006624
6625 switch (sset) {
6626 case ETH_SS_TEST:
6627 return S2IO_TEST_LEN;
6628 case ETH_SS_STATS:
Joe Perchesd44570e2009-08-24 17:29:44 +00006629 switch (sp->device_type) {
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006630 case XFRAME_I_DEVICE:
6631 return XFRAME_I_STAT_LEN;
6632 case XFRAME_II_DEVICE:
6633 return XFRAME_II_STAT_LEN;
6634 default:
6635 return 0;
6636 }
6637 default:
6638 return -EOPNOTSUPP;
6639 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006640}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006641
6642static void s2io_ethtool_get_strings(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006643 u32 stringset, u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006644{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006645 int stat_size = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08006646 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006647
Linus Torvalds1da177e2005-04-16 15:20:36 -07006648 switch (stringset) {
6649 case ETH_SS_TEST:
6650 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6651 break;
6652 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006653 stat_size = sizeof(ethtool_xena_stats_keys);
Joe Perchesd44570e2009-08-24 17:29:44 +00006654 memcpy(data, &ethtool_xena_stats_keys, stat_size);
6655 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006656 memcpy(data + stat_size,
Joe Perchesd44570e2009-08-24 17:29:44 +00006657 &ethtool_enhanced_stats_keys,
6658 sizeof(ethtool_enhanced_stats_keys));
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006659 stat_size += sizeof(ethtool_enhanced_stats_keys);
6660 }
6661
6662 memcpy(data + stat_size, &ethtool_driver_stats_keys,
Joe Perchesd44570e2009-08-24 17:29:44 +00006663 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006664 }
6665}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006666
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006667static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006668{
6669 if (data)
6670 dev->features |= NETIF_F_IP_CSUM;
6671 else
6672 dev->features &= ~NETIF_F_IP_CSUM;
6673
6674 return 0;
6675}
6676
Ananda Raju75c30b12006-07-24 19:55:09 -04006677static u32 s2io_ethtool_op_get_tso(struct net_device *dev)
6678{
6679 return (dev->features & NETIF_F_TSO) != 0;
6680}
6681static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data)
6682{
6683 if (data)
6684 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
6685 else
6686 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
6687
6688 return 0;
6689}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006690
Jeff Garzik7282d492006-09-13 14:30:00 -04006691static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006692 .get_settings = s2io_ethtool_gset,
6693 .set_settings = s2io_ethtool_sset,
6694 .get_drvinfo = s2io_ethtool_gdrvinfo,
6695 .get_regs_len = s2io_ethtool_get_regs_len,
6696 .get_regs = s2io_ethtool_gregs,
6697 .get_link = ethtool_op_get_link,
6698 .get_eeprom_len = s2io_get_eeprom_len,
6699 .get_eeprom = s2io_ethtool_geeprom,
6700 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006701 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006702 .get_pauseparam = s2io_ethtool_getpause_data,
6703 .set_pauseparam = s2io_ethtool_setpause_data,
6704 .get_rx_csum = s2io_ethtool_get_rx_csum,
6705 .set_rx_csum = s2io_ethtool_set_rx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006706 .set_tx_csum = s2io_ethtool_op_set_tx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006707 .set_sg = ethtool_op_set_sg,
Ananda Raju75c30b12006-07-24 19:55:09 -04006708 .get_tso = s2io_ethtool_op_get_tso,
6709 .set_tso = s2io_ethtool_op_set_tso,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05006710 .set_ufo = ethtool_op_set_ufo,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006711 .self_test = s2io_ethtool_test,
6712 .get_strings = s2io_ethtool_get_strings,
6713 .phys_id = s2io_ethtool_idnic,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006714 .get_ethtool_stats = s2io_get_ethtool_stats,
6715 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006716};
6717
6718/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006719 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006720 * @dev : Device pointer.
6721 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6722 * a proprietary structure used to pass information to the driver.
6723 * @cmd : This is used to distinguish between the different commands that
6724 * can be passed to the IOCTL functions.
6725 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006726 * Currently there are no special functionality supported in IOCTL, hence
6727 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006728 */
6729
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006730static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006731{
6732 return -EOPNOTSUPP;
6733}
6734
6735/**
6736 * s2io_change_mtu - entry point to change MTU size for the device.
6737 * @dev : device pointer.
6738 * @new_mtu : the new MTU size for the device.
6739 * Description: A driver entry point to change MTU size for the device.
6740 * Before changing the MTU the device must be stopped.
6741 * Return value:
6742 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6743 * file on failure.
6744 */
6745
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006746static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006747{
Wang Chen4cf16532008-11-12 23:38:14 -08006748 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006749 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006750
6751 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006752 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006753 return -EPERM;
6754 }
6755
Linus Torvalds1da177e2005-04-16 15:20:36 -07006756 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006757 if (netif_running(dev)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006758 s2io_stop_all_tx_queue(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006759 s2io_card_down(sp);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006760 ret = s2io_card_up(sp);
6761 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006762 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07006763 __func__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006764 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006765 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006766 s2io_wake_all_tx_queue(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006767 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006768 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006769 u64 val64 = new_mtu;
6770
6771 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6772 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006773
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006774 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006775}
6776
6777/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006778 * s2io_set_link - Set the LInk status
6779 * @data: long pointer to device private structue
6780 * Description: Sets the link status for the adapter
6781 */
6782
David Howellsc4028952006-11-22 14:57:56 +00006783static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006784{
Joe Perchesd44570e2009-08-24 17:29:44 +00006785 struct s2io_nic *nic = container_of(work, struct s2io_nic,
6786 set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006787 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006788 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006789 register u64 val64;
6790 u16 subid;
6791
Francois Romieu22747d62007-02-15 23:37:50 +01006792 rtnl_lock();
6793
6794 if (!netif_running(dev))
6795 goto out_unlock;
6796
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006797 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006798 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006799 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006800 }
6801
6802 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006803 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6804 /*
6805 * Allow a small delay for the NICs self initiated
6806 * cleanup to complete.
6807 */
6808 msleep(100);
6809 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006810
6811 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006812 if (LINK_IS_UP(val64)) {
6813 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6814 if (verify_xena_quiescence(nic)) {
6815 val64 = readq(&bar0->adapter_control);
6816 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006817 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006818 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
Joe Perchesd44570e2009-08-24 17:29:44 +00006819 nic->device_type, subid)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006820 val64 = readq(&bar0->gpio_control);
6821 val64 |= GPIO_CTRL_GPIO_0;
6822 writeq(val64, &bar0->gpio_control);
6823 val64 = readq(&bar0->gpio_control);
6824 } else {
6825 val64 |= ADAPTER_LED_ON;
6826 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006827 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00006828 nic->device_enabled_once = true;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006829 } else {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006830 DBG_PRINT(ERR_DBG,
6831 "%s: Error: device is not Quiescent\n",
6832 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006833 s2io_stop_all_tx_queue(nic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006834 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006835 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006836 val64 = readq(&bar0->adapter_control);
6837 val64 |= ADAPTER_LED_ON;
6838 writeq(val64, &bar0->adapter_control);
6839 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006840 } else {
6841 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6842 subid)) {
6843 val64 = readq(&bar0->gpio_control);
6844 val64 &= ~GPIO_CTRL_GPIO_0;
6845 writeq(val64, &bar0->gpio_control);
6846 val64 = readq(&bar0->gpio_control);
6847 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006848 /* turn off LED */
6849 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00006850 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006851 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006852 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006853 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006854 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006855
6856out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006857 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006858}
6859
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006860static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
Joe Perchesd44570e2009-08-24 17:29:44 +00006861 struct buffAdd *ba,
6862 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6863 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006864{
6865 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006866 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006867
6868 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006869 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006870 /* allocate skb */
6871 if (*skb) {
6872 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6873 /*
6874 * As Rx frame are not going to be processed,
6875 * using same mapped address for the Rxd
6876 * buffer pointer
6877 */
Veena Parat6d517a22007-07-23 02:20:51 -04006878 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006879 } else {
6880 *skb = dev_alloc_skb(size);
6881 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006882 DBG_PRINT(INFO_DBG,
6883 "%s: Out of memory to allocate %s\n",
6884 dev->name, "1 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006885 stats->mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006886 return -ENOMEM ;
6887 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006888 stats->mem_allocated += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006889 /* storing the mapped addr in a temp variable
6890 * such it will be used for next rxd whose
6891 * Host Control is NULL
6892 */
Veena Parat6d517a22007-07-23 02:20:51 -04006893 rxdp1->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006894 pci_map_single(sp->pdev, (*skb)->data,
6895 size - NET_IP_ALIGN,
6896 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006897 if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006898 goto memalloc_failed;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006899 rxdp->Host_Control = (unsigned long) (*skb);
6900 }
6901 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006902 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006903 /* Two buffer Mode */
6904 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006905 rxdp3->Buffer2_ptr = *temp2;
6906 rxdp3->Buffer0_ptr = *temp0;
6907 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006908 } else {
6909 *skb = dev_alloc_skb(size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006910 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006911 DBG_PRINT(INFO_DBG,
6912 "%s: Out of memory to allocate %s\n",
6913 dev->name,
6914 "2 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006915 stats->mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006916 return -ENOMEM;
6917 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006918 stats->mem_allocated += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006919 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006920 pci_map_single(sp->pdev, (*skb)->data,
6921 dev->mtu + 4,
6922 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006923 if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006924 goto memalloc_failed;
Veena Parat6d517a22007-07-23 02:20:51 -04006925 rxdp3->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006926 pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
6927 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006928 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006929 rxdp3->Buffer0_ptr)) {
6930 pci_unmap_single(sp->pdev,
6931 (dma_addr_t)rxdp3->Buffer2_ptr,
6932 dev->mtu + 4,
6933 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006934 goto memalloc_failed;
6935 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006936 rxdp->Host_Control = (unsigned long) (*skb);
6937
6938 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04006939 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006940 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Joe Perchesd44570e2009-08-24 17:29:44 +00006941 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006942 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006943 rxdp3->Buffer1_ptr)) {
6944 pci_unmap_single(sp->pdev,
6945 (dma_addr_t)rxdp3->Buffer0_ptr,
6946 BUF0_LEN, PCI_DMA_FROMDEVICE);
6947 pci_unmap_single(sp->pdev,
6948 (dma_addr_t)rxdp3->Buffer2_ptr,
6949 dev->mtu + 4,
6950 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006951 goto memalloc_failed;
6952 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006953 }
6954 }
6955 return 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00006956
6957memalloc_failed:
6958 stats->pci_map_fail_cnt++;
6959 stats->mem_freed += (*skb)->truesize;
6960 dev_kfree_skb(*skb);
6961 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006962}
Veena Parat491abf22007-07-23 02:37:14 -04006963
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006964static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
6965 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006966{
6967 struct net_device *dev = sp->dev;
6968 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006969 rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006970 } else if (sp->rxd_mode == RXD_MODE_3B) {
6971 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
6972 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
Joe Perchesd44570e2009-08-24 17:29:44 +00006973 rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006974 }
6975}
6976
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006977static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006978{
6979 int i, j, k, blk_cnt = 0, size;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006980 struct config_param *config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00006981 struct mac_info *mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006982 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006983 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006984 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006985 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006986 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
6987
6988 /* Calculate the size based on ring mode */
6989 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
6990 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
6991 if (sp->rxd_mode == RXD_MODE_1)
6992 size += NET_IP_ALIGN;
6993 else if (sp->rxd_mode == RXD_MODE_3B)
6994 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006995
6996 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00006997 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
6998 struct ring_info *ring = &mac_control->rings[i];
6999
Joe Perchesd44570e2009-08-24 17:29:44 +00007000 blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1);
Ananda Raju5d3213c2006-04-21 19:23:26 -04007001
7002 for (j = 0; j < blk_cnt; j++) {
7003 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007004 rxdp = ring->rx_blocks[j].rxds[k].virt_addr;
7005 if (sp->rxd_mode == RXD_MODE_3B)
Joe Perches13d866a2009-08-24 17:29:41 +00007006 ba = &ring->ba[j][k];
Joe Perchesd44570e2009-08-24 17:29:44 +00007007 if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,
7008 (u64 *)&temp0_64,
7009 (u64 *)&temp1_64,
7010 (u64 *)&temp2_64,
7011 size) == -ENOMEM) {
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05007012 return 0;
7013 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04007014
7015 set_rxd_buffer_size(sp, rxdp, size);
7016 wmb();
7017 /* flip the Ownership bit to Hardware */
7018 rxdp->Control_1 |= RXD_OWN_XENA;
7019 }
7020 }
7021 }
7022 return 0;
7023
7024}
7025
Joe Perchesd44570e2009-08-24 17:29:44 +00007026static int s2io_add_isr(struct s2io_nic *sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007027{
7028 int ret = 0;
7029 struct net_device *dev = sp->dev;
7030 int err = 0;
7031
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007032 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007033 ret = s2io_enable_msi_x(sp);
7034 if (ret) {
7035 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007036 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007037 }
7038
Joe Perchesd44570e2009-08-24 17:29:44 +00007039 /*
7040 * Store the values of the MSIX table in
7041 * the struct s2io_nic structure
7042 */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007043 store_xmsi_data(sp);
7044
7045 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007046 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007047 int i, msix_rx_cnt = 0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007048
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007049 for (i = 0; i < sp->num_entries; i++) {
7050 if (sp->s2io_entries[i].in_use == MSIX_FLG) {
7051 if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007052 MSIX_RING_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007053 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
7054 dev->name, i);
7055 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007056 s2io_msix_ring_handle,
7057 0,
7058 sp->desc[i],
7059 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007060 } else if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007061 MSIX_ALARM_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007062 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
Joe Perchesd44570e2009-08-24 17:29:44 +00007063 dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007064 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007065 s2io_msix_fifo_handle,
7066 0,
7067 sp->desc[i],
7068 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007069
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007070 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007071 /* if either data or addr is zero print it. */
7072 if (!(sp->msix_info[i].addr &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007073 sp->msix_info[i].data)) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007074 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007075 "%s @Addr:0x%llx Data:0x%llx\n",
7076 sp->desc[i],
7077 (unsigned long long)
7078 sp->msix_info[i].addr,
7079 (unsigned long long)
7080 ntohl(sp->msix_info[i].data));
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007081 } else
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007082 msix_rx_cnt++;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007083 if (err) {
7084 remove_msix_isr(sp);
7085
7086 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007087 "%s:MSI-X-%d registration "
7088 "failed\n", dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007089
7090 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007091 "%s: Defaulting to INTA\n",
7092 dev->name);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007093 sp->config.intr_type = INTA;
7094 break;
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007095 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007096 sp->s2io_entries[i].in_use =
7097 MSIX_REGISTERED_SUCCESS;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007098 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007099 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007100 if (!err) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00007101 pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt);
Joe Perches9e39f7c2009-08-25 08:52:00 +00007102 DBG_PRINT(INFO_DBG,
7103 "MSI-X-TX entries enabled through alarm vector\n");
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007104 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007105 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007106 if (sp->config.intr_type == INTA) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007107 err = request_irq((int)sp->pdev->irq, s2io_isr, IRQF_SHARED,
7108 sp->name, dev);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007109 if (err) {
7110 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
7111 dev->name);
7112 return -1;
7113 }
7114 }
7115 return 0;
7116}
Joe Perchesd44570e2009-08-24 17:29:44 +00007117
7118static void s2io_rem_isr(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007119{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007120 if (sp->config.intr_type == MSI_X)
7121 remove_msix_isr(sp);
7122 else
7123 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007124}
7125
Joe Perchesd44570e2009-08-24 17:29:44 +00007126static void do_s2io_card_down(struct s2io_nic *sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007127{
7128 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007129 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007130 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007131 struct config_param *config;
7132 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007133
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007134 if (!is_s2io_card_up(sp))
7135 return;
7136
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007137 del_timer_sync(&sp->alarm_timer);
7138 /* If s2io_set_link task is executing, wait till it completes. */
Joe Perchesd44570e2009-08-24 17:29:44 +00007139 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state)))
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007140 msleep(50);
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007141 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007142
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007143 /* Disable napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007144 if (sp->config.napi) {
7145 int off = 0;
7146 if (config->intr_type == MSI_X) {
7147 for (; off < sp->config.rx_ring_num; off++)
7148 napi_disable(&sp->mac_control.rings[off].napi);
Joe Perchesd44570e2009-08-24 17:29:44 +00007149 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007150 else
7151 napi_disable(&sp->napi);
7152 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007153
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007154 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007155 if (do_io)
7156 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007157
7158 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007159
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007160 /* stop the tx queue, indicate link down */
7161 s2io_link(sp, LINK_DOWN);
7162
Linus Torvalds1da177e2005-04-16 15:20:36 -07007163 /* Check if the device is Quiescent and then Reset the NIC */
Joe Perchesd44570e2009-08-24 17:29:44 +00007164 while (do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007165 /* As per the HW requirement we need to replenish the
7166 * receive buffer to avoid the ring bump. Since there is
7167 * no intention of processing the Rx frame at this pointwe are
7168 * just settting the ownership bit of rxd in Each Rx
7169 * ring to HW and set the appropriate buffer size
7170 * based on the ring mode
7171 */
7172 rxd_owner_bit_reset(sp);
7173
Linus Torvalds1da177e2005-04-16 15:20:36 -07007174 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007175 if (verify_xena_quiescence(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007176 if (verify_pcc_quiescent(sp, sp->device_enabled_once))
7177 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007178 }
7179
7180 msleep(50);
7181 cnt++;
7182 if (cnt == 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007183 DBG_PRINT(ERR_DBG, "Device not Quiescent - "
7184 "adapter status reads 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007185 (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007186 break;
7187 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007188 }
7189 if (do_io)
7190 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007191
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007192 /* Free all Tx buffers */
7193 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007194
7195 /* Free all Rx buffers */
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007196 free_rx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007197
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007198 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007199}
7200
Joe Perchesd44570e2009-08-24 17:29:44 +00007201static void s2io_card_down(struct s2io_nic *sp)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007202{
7203 do_s2io_card_down(sp, 1);
7204}
7205
Joe Perchesd44570e2009-08-24 17:29:44 +00007206static int s2io_card_up(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007207{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007208 int i, ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007209 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007210 struct mac_info *mac_control;
Joe Perchesd44570e2009-08-24 17:29:44 +00007211 struct net_device *dev = (struct net_device *)sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007212 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007213
7214 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007215 ret = init_nic(sp);
7216 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007217 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7218 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007219 if (ret != -EIO)
7220 s2io_reset(sp);
7221 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007222 }
7223
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007224 /*
7225 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007226 * Rx ring and initializing buffers into 30 Rx blocks
7227 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007228 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007229 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007230
7231 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007232 struct ring_info *ring = &mac_control->rings[i];
7233
7234 ring->mtu = dev->mtu;
7235 ret = fill_rx_buffers(sp, ring, 1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007236 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007237 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7238 dev->name);
7239 s2io_reset(sp);
7240 free_rx_buffers(sp);
7241 return -ENOMEM;
7242 }
7243 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
Joe Perches13d866a2009-08-24 17:29:41 +00007244 ring->rx_bufs_left);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007245 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007246
7247 /* Initialise napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007248 if (config->napi) {
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007249 if (config->intr_type == MSI_X) {
7250 for (i = 0; i < sp->config.rx_ring_num; i++)
7251 napi_enable(&sp->mac_control.rings[i].napi);
7252 } else {
7253 napi_enable(&sp->napi);
7254 }
7255 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007256
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007257 /* Maintain the state prior to the open */
7258 if (sp->promisc_flg)
7259 sp->promisc_flg = 0;
7260 if (sp->m_cast_flg) {
7261 sp->m_cast_flg = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007262 sp->all_multi_pos = 0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007263 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007264
7265 /* Setting its receive mode */
7266 s2io_set_multicast(dev);
7267
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007268 if (sp->lro) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007269 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007270 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
Joe Perchesd44570e2009-08-24 17:29:44 +00007271 /* Check if we can use (if specified) user provided value */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007272 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7273 sp->lro_max_aggr_per_sess = lro_max_pkts;
7274 }
7275
Linus Torvalds1da177e2005-04-16 15:20:36 -07007276 /* Enable Rx Traffic and interrupts on the NIC */
7277 if (start_nic(sp)) {
7278 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007279 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007280 free_rx_buffers(sp);
7281 return -ENODEV;
7282 }
7283
7284 /* Add interrupt service routine */
7285 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007286 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007287 s2io_rem_isr(sp);
7288 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007289 free_rx_buffers(sp);
7290 return -ENODEV;
7291 }
7292
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007293 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7294
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007295 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
7296
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007297 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007298 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007299 if (sp->config.intr_type != INTA) {
7300 interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
7301 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7302 } else {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007303 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007304 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007305 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7306 }
7307
Linus Torvalds1da177e2005-04-16 15:20:36 -07007308 return 0;
7309}
7310
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007311/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007312 * s2io_restart_nic - Resets the NIC.
7313 * @data : long pointer to the device private structure
7314 * Description:
7315 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007316 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007317 * the run time of the watch dog routine which is run holding a
7318 * spin lock.
7319 */
7320
David Howellsc4028952006-11-22 14:57:56 +00007321static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007322{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007323 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007324 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007325
Francois Romieu22747d62007-02-15 23:37:50 +01007326 rtnl_lock();
7327
7328 if (!netif_running(dev))
7329 goto out_unlock;
7330
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007331 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007332 if (s2io_card_up(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007333 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007334 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007335 s2io_wake_all_tx_queue(sp);
Joe Perchesd44570e2009-08-24 17:29:44 +00007336 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007337out_unlock:
7338 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007339}
7340
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007341/**
7342 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007343 * @dev : Pointer to net device structure
7344 * Description:
7345 * This function is triggered if the Tx Queue is stopped
7346 * for a pre-defined amount of time when the Interface is still up.
7347 * If the Interface is jammed in such a situation, the hardware is
7348 * reset (by s2io_close) and restarted again (by s2io_open) to
7349 * overcome any problem that might have been caused in the hardware.
7350 * Return value:
7351 * void
7352 */
7353
7354static void s2io_tx_watchdog(struct net_device *dev)
7355{
Wang Chen4cf16532008-11-12 23:38:14 -08007356 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007357 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007358
7359 if (netif_carrier_ok(dev)) {
Joe Perchesffb5df62009-08-24 17:29:47 +00007360 swstats->watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007361 schedule_work(&sp->rst_timer_task);
Joe Perchesffb5df62009-08-24 17:29:47 +00007362 swstats->soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007363 }
7364}
7365
7366/**
7367 * rx_osm_handler - To perform some OS related operations on SKB.
7368 * @sp: private member of the device structure,pointer to s2io_nic structure.
7369 * @skb : the socket buffer pointer.
7370 * @len : length of the packet
7371 * @cksum : FCS checksum of the frame.
7372 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007373 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007374 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007375 * some OS related operations on the SKB before passing it to the upper
7376 * layers. It mainly checks if the checksum is OK, if so adds it to the
7377 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7378 * to the upper layer. If the checksum is wrong, it increments the Rx
7379 * packet error count, frees the SKB and returns error.
7380 * Return value:
7381 * SUCCESS on success and -1 on failure.
7382 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007383static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007384{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007385 struct s2io_nic *sp = ring_data->nic;
Joe Perchesd44570e2009-08-24 17:29:44 +00007386 struct net_device *dev = (struct net_device *)ring_data->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007387 struct sk_buff *skb = (struct sk_buff *)
Joe Perchesd44570e2009-08-24 17:29:44 +00007388 ((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007389 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007390 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007391 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ingo Molnar2e6a6842008-11-25 16:47:35 -08007392 struct lro *uninitialized_var(lro);
Olaf Heringf9046eb2007-06-19 22:41:10 +02007393 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00007394 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007395
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007396 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007397
Ananda Raju863c11a2006-04-21 19:03:13 -04007398 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007399 /* Check for parity error */
Joe Perchesd44570e2009-08-24 17:29:44 +00007400 if (err & 0x1)
Joe Perchesffb5df62009-08-24 17:29:47 +00007401 swstats->parity_err_cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007402
Olaf Heringf9046eb2007-06-19 22:41:10 +02007403 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00007404 switch (err_mask) {
7405 case 1:
Joe Perchesffb5df62009-08-24 17:29:47 +00007406 swstats->rx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007407 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007408
Joe Perchesd44570e2009-08-24 17:29:44 +00007409 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00007410 swstats->rx_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007411 break;
7412
Joe Perchesd44570e2009-08-24 17:29:44 +00007413 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00007414 swstats->rx_parity_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007415 break;
7416
Joe Perchesd44570e2009-08-24 17:29:44 +00007417 case 4:
Joe Perchesffb5df62009-08-24 17:29:47 +00007418 swstats->rx_rda_fail_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007419 break;
7420
Joe Perchesd44570e2009-08-24 17:29:44 +00007421 case 5:
Joe Perchesffb5df62009-08-24 17:29:47 +00007422 swstats->rx_unkn_prot_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007423 break;
7424
Joe Perchesd44570e2009-08-24 17:29:44 +00007425 case 6:
Joe Perchesffb5df62009-08-24 17:29:47 +00007426 swstats->rx_fcs_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007427 break;
7428
Joe Perchesd44570e2009-08-24 17:29:44 +00007429 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00007430 swstats->rx_buf_size_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007431 break;
7432
Joe Perchesd44570e2009-08-24 17:29:44 +00007433 case 8:
Joe Perchesffb5df62009-08-24 17:29:47 +00007434 swstats->rx_rxd_corrupt_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007435 break;
7436
Joe Perchesd44570e2009-08-24 17:29:44 +00007437 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00007438 swstats->rx_unkn_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007439 break;
7440 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007441 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00007442 * Drop the packet if bad transfer code. Exception being
7443 * 0x5, which could be due to unsupported IPv6 extension header.
7444 * In this case, we let stack handle the packet.
7445 * Note that in this case, since checksum will be incorrect,
7446 * stack will validate the same.
7447 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007448 if (err_mask != 0x5) {
7449 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007450 dev->name, err_mask);
Breno Leitaodc56e632008-07-22 16:27:20 -03007451 dev->stats.rx_crc_errors++;
Joe Perchesffb5df62009-08-24 17:29:47 +00007452 swstats->mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007453 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007454 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007455 ring_data->rx_bufs_left -= 1;
Ananda Raju863c11a2006-04-21 19:03:13 -04007456 rxdp->Host_Control = 0;
7457 return 0;
7458 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007459 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007460
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007461 /* Updating statistics */
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007462 ring_data->rx_packets++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007463 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007464 if (sp->rxd_mode == RXD_MODE_1) {
7465 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007466
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007467 ring_data->rx_bytes += len;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007468 skb_put(skb, len);
7469
Veena Parat6d517a22007-07-23 02:20:51 -04007470 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007471 int get_block = ring_data->rx_curr_get_info.block_index;
7472 int get_off = ring_data->rx_curr_get_info.offset;
7473 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7474 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7475 unsigned char *buff = skb_push(skb, buf0_len);
7476
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007477 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007478 ring_data->rx_bytes += buf0_len + buf2_len;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007479 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007480 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007481 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007482
Joe Perchesd44570e2009-08-24 17:29:44 +00007483 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
7484 ((!ring_data->lro) ||
7485 (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007486 (sp->rx_csum)) {
7487 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7488 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7489 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7490 /*
7491 * NIC verifies if the Checksum of the received
7492 * frame is Ok or not and accordingly returns
7493 * a flag in the RxD.
7494 */
7495 skb->ip_summed = CHECKSUM_UNNECESSARY;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007496 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007497 u32 tcp_len;
7498 u8 *tcp;
7499 int ret = 0;
7500
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007501 ret = s2io_club_tcp_session(ring_data,
Joe Perchesd44570e2009-08-24 17:29:44 +00007502 skb->data, &tcp,
7503 &tcp_len, &lro,
7504 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007505 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007506 case 3: /* Begin anew */
7507 lro->parent = skb;
7508 goto aggregate;
7509 case 1: /* Aggregate */
7510 lro_append_pkt(sp, lro, skb, tcp_len);
7511 goto aggregate;
7512 case 4: /* Flush session */
7513 lro_append_pkt(sp, lro, skb, tcp_len);
7514 queue_rx_frame(lro->parent,
7515 lro->vlan_tag);
7516 clear_lro_session(lro);
Joe Perchesffb5df62009-08-24 17:29:47 +00007517 swstats->flush_max_pkts++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007518 goto aggregate;
7519 case 2: /* Flush both */
7520 lro->parent->data_len = lro->frags_len;
Joe Perchesffb5df62009-08-24 17:29:47 +00007521 swstats->sending_both++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007522 queue_rx_frame(lro->parent,
7523 lro->vlan_tag);
7524 clear_lro_session(lro);
7525 goto send_up;
7526 case 0: /* sessions exceeded */
7527 case -1: /* non-TCP or not L2 aggregatable */
7528 case 5: /*
7529 * First pkt in session not
7530 * L3/L4 aggregatable
7531 */
7532 break;
7533 default:
7534 DBG_PRINT(ERR_DBG,
7535 "%s: Samadhana!!\n",
7536 __func__);
7537 BUG();
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007538 }
7539 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007540 } else {
7541 /*
7542 * Packet with erroneous checksum, let the
7543 * upper layers deal with it.
7544 */
7545 skb->ip_summed = CHECKSUM_NONE;
7546 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007547 } else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007548 skb->ip_summed = CHECKSUM_NONE;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007549
Joe Perchesffb5df62009-08-24 17:29:47 +00007550 swstats->mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007551send_up:
David S. Miller0c8dfc82009-01-27 16:22:32 -08007552 skb_record_rx_queue(skb, ring_no);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007553 queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007554aggregate:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007555 sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007556 return SUCCESS;
7557}
7558
7559/**
7560 * s2io_link - stops/starts the Tx queue.
7561 * @sp : private member of the device structure, which is a pointer to the
7562 * s2io_nic structure.
7563 * @link : inidicates whether link is UP/DOWN.
7564 * Description:
7565 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007566 * status of the NIC is is down or up. This is called by the Alarm
7567 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007568 * Return value:
7569 * void.
7570 */
7571
Joe Perchesd44570e2009-08-24 17:29:44 +00007572static void s2io_link(struct s2io_nic *sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007573{
Joe Perchesd44570e2009-08-24 17:29:44 +00007574 struct net_device *dev = (struct net_device *)sp->dev;
Joe Perchesffb5df62009-08-24 17:29:47 +00007575 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007576
7577 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007578 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007579 if (link == LINK_DOWN) {
7580 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007581 s2io_stop_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007582 netif_carrier_off(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007583 if (swstats->link_up_cnt)
7584 swstats->link_up_time =
7585 jiffies - sp->start_time;
7586 swstats->link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007587 } else {
7588 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Joe Perchesffb5df62009-08-24 17:29:47 +00007589 if (swstats->link_down_cnt)
7590 swstats->link_down_time =
Joe Perchesd44570e2009-08-24 17:29:44 +00007591 jiffies - sp->start_time;
Joe Perchesffb5df62009-08-24 17:29:47 +00007592 swstats->link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007593 netif_carrier_on(dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007594 s2io_wake_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007595 }
7596 }
7597 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007598 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007599}
7600
7601/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007602 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7603 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007604 * s2io_nic structure.
7605 * Description:
7606 * This function initializes a few of the PCI and PCI-X configuration registers
7607 * with recommended values.
7608 * Return value:
7609 * void
7610 */
7611
Joe Perchesd44570e2009-08-24 17:29:44 +00007612static void s2io_init_pci(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007613{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007614 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007615
7616 /* Enable Data Parity Error Recovery in PCI-X command register. */
7617 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007618 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007619 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007620 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007621 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007622 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007623
7624 /* Set the PErr Response bit in PCI command register. */
7625 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7626 pci_write_config_word(sp->pdev, PCI_COMMAND,
7627 (pci_cmd | PCI_COMMAND_PARITY));
7628 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007629}
7630
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007631static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type,
Joe Perchesd44570e2009-08-24 17:29:44 +00007632 u8 *dev_multiq)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007633{
Joe Perchesd44570e2009-08-24 17:29:44 +00007634 if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007635 DBG_PRINT(ERR_DBG, "Requested number of tx fifos "
Joe Perchesd44570e2009-08-24 17:29:44 +00007636 "(%d) not supported\n", tx_fifo_num);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007637
7638 if (tx_fifo_num < 1)
7639 tx_fifo_num = 1;
7640 else
7641 tx_fifo_num = MAX_TX_FIFOS;
7642
Joe Perches9e39f7c2009-08-25 08:52:00 +00007643 DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007644 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007645
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007646 if (multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007647 *dev_multiq = multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007648
7649 if (tx_steering_type && (1 == tx_fifo_num)) {
7650 if (tx_steering_type != TX_DEFAULT_STEERING)
7651 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007652 "Tx steering is not supported with "
Joe Perchesd44570e2009-08-24 17:29:44 +00007653 "one fifo. Disabling Tx steering.\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007654 tx_steering_type = NO_STEERING;
7655 }
7656
7657 if ((tx_steering_type < NO_STEERING) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007658 (tx_steering_type > TX_DEFAULT_STEERING)) {
7659 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007660 "Requested transmit steering not supported\n");
7661 DBG_PRINT(ERR_DBG, "Disabling transmit steering\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007662 tx_steering_type = NO_STEERING;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007663 }
7664
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007665 if (rx_ring_num > MAX_RX_RINGS) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007666 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007667 "Requested number of rx rings not supported\n");
7668 DBG_PRINT(ERR_DBG, "Default to %d rx rings\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007669 MAX_RX_RINGS);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007670 rx_ring_num = MAX_RX_RINGS;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007671 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007672
Veena Parateccb8622007-07-23 02:23:54 -04007673 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007674 DBG_PRINT(ERR_DBG, "Wrong intr_type requested. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007675 "Defaulting to INTA\n");
7676 *dev_intr_type = INTA;
7677 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007678
Ananda Raju9dc737a2006-04-21 19:05:41 -04007679 if ((*dev_intr_type == MSI_X) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007680 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7681 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007682 DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. "
Joe Perchesd44570e2009-08-24 17:29:44 +00007683 "Defaulting to INTA\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007684 *dev_intr_type = INTA;
7685 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007686
Veena Parat6d517a22007-07-23 02:20:51 -04007687 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007688 DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n");
7689 DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007690 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007691 }
7692 return SUCCESS;
7693}
7694
Linus Torvalds1da177e2005-04-16 15:20:36 -07007695/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007696 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7697 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007698 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007699 * Description: The function configures the receive steering to
7700 * desired receive ring.
7701 * Return Value: SUCCESS on success and
7702 * '-1' on failure (endian settings incorrect).
7703 */
7704static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7705{
7706 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7707 register u64 val64 = 0;
7708
7709 if (ds_codepoint > 63)
7710 return FAILURE;
7711
7712 val64 = RTS_DS_MEM_DATA(ring);
7713 writeq(val64, &bar0->rts_ds_mem_data);
7714
7715 val64 = RTS_DS_MEM_CTRL_WE |
7716 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7717 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7718
7719 writeq(val64, &bar0->rts_ds_mem_ctrl);
7720
7721 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
Joe Perchesd44570e2009-08-24 17:29:44 +00007722 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7723 S2IO_BIT_RESET);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007724}
7725
Stephen Hemminger04025092008-11-21 17:28:55 -08007726static const struct net_device_ops s2io_netdev_ops = {
7727 .ndo_open = s2io_open,
7728 .ndo_stop = s2io_close,
7729 .ndo_get_stats = s2io_get_stats,
7730 .ndo_start_xmit = s2io_xmit,
7731 .ndo_validate_addr = eth_validate_addr,
7732 .ndo_set_multicast_list = s2io_set_multicast,
7733 .ndo_do_ioctl = s2io_ioctl,
7734 .ndo_set_mac_address = s2io_set_mac_addr,
7735 .ndo_change_mtu = s2io_change_mtu,
7736 .ndo_vlan_rx_register = s2io_vlan_rx_register,
7737 .ndo_vlan_rx_kill_vid = s2io_vlan_rx_kill_vid,
7738 .ndo_tx_timeout = s2io_tx_watchdog,
7739#ifdef CONFIG_NET_POLL_CONTROLLER
7740 .ndo_poll_controller = s2io_netpoll,
7741#endif
7742};
7743
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007744/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007745 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007746 * @pdev : structure containing the PCI related information of the device.
7747 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7748 * Description:
7749 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007750 * All OS related initialization including memory and device structure and
7751 * initlaization of the device private variable is done. Also the swapper
7752 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007753 * registers of the device.
7754 * Return value:
7755 * returns 0 on success and negative on failure.
7756 */
7757
7758static int __devinit
7759s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7760{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007761 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007762 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007763 int i, j, ret;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007764 int dma_flag = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007765 u32 mac_up, mac_down;
7766 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007767 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007768 u16 subid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007769 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007770 struct mac_info *mac_control;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007771 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007772 u8 dev_intr_type = intr_type;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007773 u8 dev_multiq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007774
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007775 ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq);
7776 if (ret)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007777 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007778
Joe Perchesd44570e2009-08-24 17:29:44 +00007779 ret = pci_enable_device(pdev);
7780 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007781 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007782 "%s: pci_enable_device failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007783 return ret;
7784 }
7785
Yang Hongyang6a355282009-04-06 19:01:13 -07007786 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007787 DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007788 dma_flag = true;
Joe Perchesd44570e2009-08-24 17:29:44 +00007789 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007790 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007791 "Unable to obtain 64bit DMA "
7792 "for consistent allocations\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07007793 pci_disable_device(pdev);
7794 return -ENOMEM;
7795 }
Yang Hongyang284901a2009-04-06 19:01:15 -07007796 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007797 DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007798 } else {
7799 pci_disable_device(pdev);
7800 return -ENOMEM;
7801 }
Joe Perchesd44570e2009-08-24 17:29:44 +00007802 ret = pci_request_regions(pdev, s2io_driver_name);
7803 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007804 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007805 __func__, ret);
Veena Parateccb8622007-07-23 02:23:54 -04007806 pci_disable_device(pdev);
7807 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007808 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007809 if (dev_multiq)
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007810 dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007811 else
David S. Millerb19fa1f2008-07-08 23:14:24 -07007812 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007813 if (dev == NULL) {
7814 DBG_PRINT(ERR_DBG, "Device allocation failed\n");
7815 pci_disable_device(pdev);
7816 pci_release_regions(pdev);
7817 return -ENODEV;
7818 }
7819
7820 pci_set_master(pdev);
7821 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007822 SET_NETDEV_DEV(dev, &pdev->dev);
7823
7824 /* Private member variable initialized to s2io NIC structure */
Wang Chen4cf16532008-11-12 23:38:14 -08007825 sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007826 memset(sp, 0, sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007827 sp->dev = dev;
7828 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007829 sp->high_dma_flag = dma_flag;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007830 sp->device_enabled_once = false;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007831 if (rx_ring_mode == 1)
7832 sp->rxd_mode = RXD_MODE_1;
7833 if (rx_ring_mode == 2)
7834 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007835
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007836 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007837
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007838 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007839 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007840 sp->device_type = XFRAME_II_DEVICE;
7841 else
7842 sp->device_type = XFRAME_I_DEVICE;
7843
Stephen Hemminger43b7c452007-10-05 12:39:21 -07007844 sp->lro = lro_enable;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007845
Linus Torvalds1da177e2005-04-16 15:20:36 -07007846 /* Initialize some PCI/PCI-X fields of the NIC. */
7847 s2io_init_pci(sp);
7848
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007849 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007850 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007851 * Most of these parameters can be specified by the user during
7852 * module insertion as they are module loadable parameters. If
7853 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007854 * are initialized with default values.
7855 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007856 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007857 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007858
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007859 config->napi = napi;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007860 config->tx_steering_type = tx_steering_type;
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007861
Linus Torvalds1da177e2005-04-16 15:20:36 -07007862 /* Tx side parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007863 if (config->tx_steering_type == TX_PRIORITY_STEERING)
7864 config->tx_fifo_num = MAX_TX_FIFOS;
7865 else
7866 config->tx_fifo_num = tx_fifo_num;
7867
7868 /* Initialize the fifos used for tx steering */
7869 if (config->tx_fifo_num < 5) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007870 if (config->tx_fifo_num == 1)
7871 sp->total_tcp_fifos = 1;
7872 else
7873 sp->total_tcp_fifos = config->tx_fifo_num - 1;
7874 sp->udp_fifo_idx = config->tx_fifo_num - 1;
7875 sp->total_udp_fifos = 1;
7876 sp->other_fifo_idx = sp->total_tcp_fifos - 1;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007877 } else {
7878 sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM -
Joe Perchesd44570e2009-08-24 17:29:44 +00007879 FIFO_OTHER_MAX_NUM);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007880 sp->udp_fifo_idx = sp->total_tcp_fifos;
7881 sp->total_udp_fifos = FIFO_UDP_MAX_NUM;
7882 sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM;
7883 }
7884
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007885 config->multiq = dev_multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007886 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007887 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7888
7889 tx_cfg->fifo_len = tx_fifo_len[i];
7890 tx_cfg->fifo_priority = i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007891 }
7892
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007893 /* mapping the QoS priority to the configured fifos */
7894 for (i = 0; i < MAX_TX_FIFOS; i++)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007895 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007896
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007897 /* map the hashing selector table to the configured fifos */
7898 for (i = 0; i < config->tx_fifo_num; i++)
7899 sp->fifo_selector[i] = fifo_selector[i];
7900
7901
Linus Torvalds1da177e2005-04-16 15:20:36 -07007902 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7903 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007904 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7905
7906 tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7907 if (tx_cfg->fifo_len < 65) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007908 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7909 break;
7910 }
7911 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007912 /* + 2 because one Txd for skb->data and one Txd for UFO */
7913 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007914
7915 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007916 config->rx_ring_num = rx_ring_num;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007917 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007918 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7919 struct ring_info *ring = &mac_control->rings[i];
7920
7921 rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1);
7922 rx_cfg->ring_priority = i;
7923 ring->rx_bufs_left = 0;
7924 ring->rxd_mode = sp->rxd_mode;
7925 ring->rxd_count = rxd_count[sp->rxd_mode];
7926 ring->pdev = sp->pdev;
7927 ring->dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007928 }
7929
7930 for (i = 0; i < rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007931 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7932
7933 rx_cfg->ring_org = RING_ORG_BUFF1;
7934 rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007935 }
7936
7937 /* Setting Mac Control parameters */
7938 mac_control->rmac_pause_time = rmac_pause_time;
7939 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
7940 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
7941
7942
Linus Torvalds1da177e2005-04-16 15:20:36 -07007943 /* initialize the shared memory used by the NIC and the host */
7944 if (init_shared_mem(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007945 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007946 ret = -ENOMEM;
7947 goto mem_alloc_failed;
7948 }
7949
Arjan van de Ven275f1652008-10-20 21:42:39 -07007950 sp->bar0 = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007951 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007952 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007953 dev->name);
7954 ret = -ENOMEM;
7955 goto bar0_remap_failed;
7956 }
7957
Arjan van de Ven275f1652008-10-20 21:42:39 -07007958 sp->bar1 = pci_ioremap_bar(pdev, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007959 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007960 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007961 dev->name);
7962 ret = -ENOMEM;
7963 goto bar1_remap_failed;
7964 }
7965
7966 dev->irq = pdev->irq;
Joe Perchesd44570e2009-08-24 17:29:44 +00007967 dev->base_addr = (unsigned long)sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007968
7969 /* Initializing the BAR1 address as the start of the FIFO pointer. */
7970 for (j = 0; j < MAX_TX_FIFOS; j++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007971 mac_control->tx_FIFO_start[j] =
7972 (struct TxFIFO_element __iomem *)
7973 (sp->bar1 + (j * 0x00020000));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007974 }
7975
7976 /* Driver entry points */
Stephen Hemminger04025092008-11-21 17:28:55 -08007977 dev->netdev_ops = &s2io_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007978 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07007979 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
Brian Haley612eff02006-06-15 14:36:36 -04007980
Linus Torvalds1da177e2005-04-16 15:20:36 -07007981 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007982 if (sp->high_dma_flag == true)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007983 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007984 dev->features |= NETIF_F_TSO;
Herbert Xuf83ef8c2006-06-30 13:37:03 -07007985 dev->features |= NETIF_F_TSO6;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007986 if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007987 dev->features |= NETIF_F_UFO;
7988 dev->features |= NETIF_F_HW_CSUM;
7989 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007990 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00007991 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
7992 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007993
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07007994 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007995
7996 /* Setting swapper control on the NIC, for proper reset operation */
7997 if (s2io_set_swapper(sp)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007998 DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007999 dev->name);
8000 ret = -EAGAIN;
8001 goto set_swap_failed;
8002 }
8003
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008004 /* Verify if the Herc works on the slot its placed into */
8005 if (sp->device_type & XFRAME_II_DEVICE) {
8006 mode = s2io_verify_pci_mode(sp);
8007 if (mode < 0) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008008 DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n",
8009 __func__);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008010 ret = -EBADSLT;
8011 goto set_swap_failed;
8012 }
8013 }
8014
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008015 if (sp->config.intr_type == MSI_X) {
8016 sp->num_entries = config->rx_ring_num + 1;
8017 ret = s2io_enable_msi_x(sp);
8018
8019 if (!ret) {
8020 ret = s2io_test_msi(sp);
8021 /* rollback MSI-X, will re-enable during add_isr() */
8022 remove_msix_isr(sp);
8023 }
8024 if (ret) {
8025
8026 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00008027 "MSI-X requested but failed to enable\n");
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008028 sp->config.intr_type = INTA;
8029 }
8030 }
8031
8032 if (config->intr_type == MSI_X) {
Joe Perches13d866a2009-08-24 17:29:41 +00008033 for (i = 0; i < config->rx_ring_num ; i++) {
8034 struct ring_info *ring = &mac_control->rings[i];
8035
8036 netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64);
8037 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008038 } else {
8039 netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64);
8040 }
8041
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008042 /* Not needed for Herc */
8043 if (sp->device_type & XFRAME_I_DEVICE) {
8044 /*
8045 * Fix for all "FFs" MAC address problems observed on
8046 * Alpha platforms
8047 */
8048 fix_mac_address(sp);
8049 s2io_reset(sp);
8050 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008051
8052 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07008053 * MAC address initialization.
8054 * For now only one mac address will be read and used.
8055 */
8056 bar0 = sp->bar0;
8057 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Joe Perchesd44570e2009-08-24 17:29:44 +00008058 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008059 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04008060 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00008061 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
8062 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008063 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00008064 mac_down = (u32)tmp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008065 mac_up = (u32) (tmp64 >> 32);
8066
Linus Torvalds1da177e2005-04-16 15:20:36 -07008067 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
8068 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
8069 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
8070 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
8071 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
8072 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
8073
Linus Torvalds1da177e2005-04-16 15:20:36 -07008074 /* Set the factory defined MAC address initially */
8075 dev->addr_len = ETH_ALEN;
8076 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04008077 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008078
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08008079 /* initialize number of multicast & unicast MAC entries variables */
8080 if (sp->device_type == XFRAME_I_DEVICE) {
8081 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
8082 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
8083 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
8084 } else if (sp->device_type == XFRAME_II_DEVICE) {
8085 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
8086 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
8087 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
8088 }
8089
8090 /* store mac addresses from CAM to s2io_nic structure */
8091 do_s2io_store_unicast_mc(sp);
8092
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008093 /* Configure MSIX vector for number of rings configured plus one */
8094 if ((sp->device_type == XFRAME_II_DEVICE) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008095 (config->intr_type == MSI_X))
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008096 sp->num_entries = config->rx_ring_num + 1;
8097
Joe Perchesd44570e2009-08-24 17:29:44 +00008098 /* Store the values of the MSIX table in the s2io_nic structure */
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04008099 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04008100 /* reset Nic and bring it to known state */
8101 s2io_reset(sp);
8102
Linus Torvalds1da177e2005-04-16 15:20:36 -07008103 /*
Sreenivasa Honnur99993af2008-04-23 13:29:42 -04008104 * Initialize link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008105 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07008106 */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04008107 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008108
Linus Torvalds1da177e2005-04-16 15:20:36 -07008109 /* Initialize spinlocks */
Joe Perches13d866a2009-08-24 17:29:41 +00008110 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8111 struct fifo_info *fifo = &mac_control->fifos[i];
8112
8113 spin_lock_init(&fifo->tx_lock);
8114 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008115
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008116 /*
8117 * SXE-002: Configure link and activity LED to init state
8118 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07008119 */
8120 subid = sp->pdev->subsystem_device;
8121 if ((subid & 0xFF) >= 0x07) {
8122 val64 = readq(&bar0->gpio_control);
8123 val64 |= 0x0000800000000000ULL;
8124 writeq(val64, &bar0->gpio_control);
8125 val64 = 0x0411040400000000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00008126 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008127 val64 = readq(&bar0->gpio_control);
8128 }
8129
8130 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
8131
8132 if (register_netdev(dev)) {
8133 DBG_PRINT(ERR_DBG, "Device registration failed\n");
8134 ret = -ENODEV;
8135 goto register_failed;
8136 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04008137 s2io_vpd_read(sp);
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08008138 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00008139 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07008140 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04008141 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
8142 s2io_driver_version);
Joe Perches9e39f7c2009-08-25 08:52:00 +00008143 DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr);
8144 DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04008145 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07008146 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008147 if (mode < 0) {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008148 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008149 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008150 goto set_swap_failed;
8151 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008152 }
Joe Perchesd44570e2009-08-24 17:29:44 +00008153 switch (sp->rxd_mode) {
8154 case RXD_MODE_1:
8155 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
8156 dev->name);
8157 break;
8158 case RXD_MODE_3B:
8159 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
8160 dev->name);
8161 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008162 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008163
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008164 switch (sp->config.napi) {
8165 case 0:
8166 DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name);
8167 break;
8168 case 1:
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008169 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008170 break;
8171 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008172
8173 DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +00008174 sp->config.tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008175
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008176 DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name,
8177 sp->config.rx_ring_num);
8178
Joe Perchesd44570e2009-08-24 17:29:44 +00008179 switch (sp->config.intr_type) {
8180 case INTA:
8181 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
8182 break;
8183 case MSI_X:
8184 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
8185 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008186 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008187 if (sp->config.multiq) {
Joe Perches13d866a2009-08-24 17:29:41 +00008188 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8189 struct fifo_info *fifo = &mac_control->fifos[i];
8190
8191 fifo->multiq = config->multiq;
8192 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008193 DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008194 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008195 } else
8196 DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008197 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008198
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008199 switch (sp->config.tx_steering_type) {
8200 case NO_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008201 DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n",
8202 dev->name);
8203 break;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008204 case TX_PRIORITY_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008205 DBG_PRINT(ERR_DBG,
8206 "%s: Priority steering enabled for transmit\n",
8207 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008208 break;
8209 case TX_DEFAULT_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008210 DBG_PRINT(ERR_DBG,
8211 "%s: Default steering enabled for transmit\n",
8212 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008213 }
8214
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008215 if (sp->lro)
8216 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
Ananda Raju9dc737a2006-04-21 19:05:41 -04008217 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008218 if (ufo)
Joe Perchesd44570e2009-08-24 17:29:44 +00008219 DBG_PRINT(ERR_DBG,
8220 "%s: UDP Fragmentation Offload(UFO) enabled\n",
8221 dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008222 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04008223 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008224
Breno Leitaocd0fce02008-09-04 17:52:54 -03008225 if (vlan_tag_strip)
8226 sp->vlan_strip_flag = 1;
8227 else
8228 sp->vlan_strip_flag = 0;
8229
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008230 /*
8231 * Make Link state as off at this point, when the Link change
8232 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07008233 * the right state.
8234 */
8235 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008236
8237 return 0;
8238
Joe Perchesd44570e2009-08-24 17:29:44 +00008239register_failed:
8240set_swap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008241 iounmap(sp->bar1);
Joe Perchesd44570e2009-08-24 17:29:44 +00008242bar1_remap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008243 iounmap(sp->bar0);
Joe Perchesd44570e2009-08-24 17:29:44 +00008244bar0_remap_failed:
8245mem_alloc_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008246 free_shared_mem(sp);
8247 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04008248 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008249 pci_set_drvdata(pdev, NULL);
8250 free_netdev(dev);
8251
8252 return ret;
8253}
8254
8255/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008256 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008257 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008258 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008259 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008260 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008261 * from memory.
8262 */
8263
8264static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8265{
8266 struct net_device *dev =
Joe Perchesd44570e2009-08-24 17:29:44 +00008267 (struct net_device *)pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008268 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008269
8270 if (dev == NULL) {
8271 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8272 return;
8273 }
8274
Francois Romieu22747d62007-02-15 23:37:50 +01008275 flush_scheduled_work();
8276
Wang Chen4cf16532008-11-12 23:38:14 -08008277 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008278 unregister_netdev(dev);
8279
8280 free_shared_mem(sp);
8281 iounmap(sp->bar0);
8282 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008283 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008284 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008285 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008286 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008287}
8288
8289/**
8290 * s2io_starter - Entry point for the driver
8291 * Description: This function is the entry point for the driver. It verifies
8292 * the module loadable parameters and initializes PCI configuration space.
8293 */
8294
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008295static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008296{
Jeff Garzik29917622006-08-19 17:48:59 -04008297 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008298}
8299
8300/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008301 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008302 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8303 */
8304
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008305static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008306{
8307 pci_unregister_driver(&s2io_driver);
8308 DBG_PRINT(INIT_DBG, "cleanup done\n");
8309}
8310
8311module_init(s2io_starter);
8312module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008313
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008314static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008315 struct tcphdr **tcp, struct RxD_t *rxdp,
8316 struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008317{
8318 int ip_off;
8319 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8320
8321 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008322 DBG_PRINT(INIT_DBG,
8323 "%s: Non-TCP frames not supported for LRO\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008324 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008325 return -1;
8326 }
8327
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008328 /* Checking for DIX type or DIX type with VLAN */
Joe Perchesd44570e2009-08-24 17:29:44 +00008329 if ((l2_type == 0) || (l2_type == 4)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008330 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8331 /*
8332 * If vlan stripping is disabled and the frame is VLAN tagged,
8333 * shift the offset by the VLAN header size bytes.
8334 */
Breno Leitaocd0fce02008-09-04 17:52:54 -03008335 if ((!sp->vlan_strip_flag) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008336 (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008337 ip_off += HEADER_VLAN_SIZE;
8338 } else {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008339 /* LLC, SNAP etc are considered non-mergeable */
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008340 return -1;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008341 }
8342
8343 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8344 ip_len = (u8)((*ip)->ihl);
8345 ip_len <<= 2;
8346 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8347
8348 return 0;
8349}
8350
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008351static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008352 struct tcphdr *tcp)
8353{
Joe Perchesd44570e2009-08-24 17:29:44 +00008354 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
8355 if ((lro->iph->saddr != ip->saddr) ||
8356 (lro->iph->daddr != ip->daddr) ||
8357 (lro->tcph->source != tcp->source) ||
8358 (lro->tcph->dest != tcp->dest))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008359 return -1;
8360 return 0;
8361}
8362
8363static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8364{
Joe Perchesd44570e2009-08-24 17:29:44 +00008365 return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008366}
8367
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008368static void initiate_new_session(struct lro *lro, u8 *l2h,
Joe Perchesd44570e2009-08-24 17:29:44 +00008369 struct iphdr *ip, struct tcphdr *tcp,
8370 u32 tcp_pyld_len, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008371{
Joe Perchesd44570e2009-08-24 17:29:44 +00008372 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008373 lro->l2h = l2h;
8374 lro->iph = ip;
8375 lro->tcph = tcp;
8376 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008377 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008378 lro->sg_num = 1;
8379 lro->total_len = ntohs(ip->tot_len);
8380 lro->frags_len = 0;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008381 lro->vlan_tag = vlan_tag;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008382 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00008383 * Check if we saw TCP timestamp.
8384 * Other consistency checks have already been done.
8385 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008386 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008387 __be32 *ptr;
8388 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008389 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008390 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008391 lro->cur_tsecr = *(ptr+2);
8392 }
8393 lro->in_use = 1;
8394}
8395
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008396static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008397{
8398 struct iphdr *ip = lro->iph;
8399 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008400 __sum16 nchk;
Joe Perchesffb5df62009-08-24 17:29:47 +00008401 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
8402
Joe Perchesd44570e2009-08-24 17:29:44 +00008403 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008404
8405 /* Update L3 header */
8406 ip->tot_len = htons(lro->total_len);
8407 ip->check = 0;
8408 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8409 ip->check = nchk;
8410
8411 /* Update L4 header */
8412 tcp->ack_seq = lro->tcp_ack;
8413 tcp->window = lro->window;
8414
8415 /* Update tsecr field if this session has timestamps enabled */
8416 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008417 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008418 *(ptr+2) = lro->cur_tsecr;
8419 }
8420
8421 /* Update counters required for calculation of
8422 * average no. of packets aggregated.
8423 */
Joe Perchesffb5df62009-08-24 17:29:47 +00008424 swstats->sum_avg_pkts_aggregated += lro->sg_num;
8425 swstats->num_aggregations++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008426}
8427
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008428static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008429 struct tcphdr *tcp, u32 l4_pyld)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008430{
Joe Perchesd44570e2009-08-24 17:29:44 +00008431 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008432 lro->total_len += l4_pyld;
8433 lro->frags_len += l4_pyld;
8434 lro->tcp_next_seq += l4_pyld;
8435 lro->sg_num++;
8436
8437 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8438 lro->tcp_ack = tcp->ack_seq;
8439 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008440
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008441 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008442 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008443 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008444 ptr = (__be32 *)(tcp+1);
8445 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008446 lro->cur_tsecr = *(ptr + 2);
8447 }
8448}
8449
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008450static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008451 struct tcphdr *tcp, u32 tcp_pyld_len)
8452{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008453 u8 *ptr;
8454
Joe Perchesd44570e2009-08-24 17:29:44 +00008455 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Andrew Morton79dc1902006-02-03 01:45:13 -08008456
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008457 if (!tcp_pyld_len) {
8458 /* Runt frame or a pure ack */
8459 return -1;
8460 }
8461
8462 if (ip->ihl != 5) /* IP has options */
8463 return -1;
8464
Ananda Raju75c30b12006-07-24 19:55:09 -04008465 /* If we see CE codepoint in IP header, packet is not mergeable */
8466 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8467 return -1;
8468
8469 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Joe Perchesd44570e2009-08-24 17:29:44 +00008470 if (tcp->urg || tcp->psh || tcp->rst ||
8471 tcp->syn || tcp->fin ||
8472 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008473 /*
8474 * Currently recognize only the ack control word and
8475 * any other control field being set would result in
8476 * flushing the LRO session
8477 */
8478 return -1;
8479 }
8480
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008481 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008482 * Allow only one TCP timestamp option. Don't aggregate if
8483 * any other options are detected.
8484 */
8485 if (tcp->doff != 5 && tcp->doff != 8)
8486 return -1;
8487
8488 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008489 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008490 while (*ptr == TCPOPT_NOP)
8491 ptr++;
8492 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8493 return -1;
8494
8495 /* Ensure timestamp value increases monotonically */
8496 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008497 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008498 return -1;
8499
8500 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008501 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008502 return -1;
8503 }
8504
8505 return 0;
8506}
8507
Joe Perchesd44570e2009-08-24 17:29:44 +00008508static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
8509 u8 **tcp, u32 *tcp_len, struct lro **lro,
8510 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008511{
8512 struct iphdr *ip;
8513 struct tcphdr *tcph;
8514 int ret = 0, i;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008515 u16 vlan_tag = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00008516 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008517
Joe Perchesd44570e2009-08-24 17:29:44 +00008518 ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8519 rxdp, sp);
8520 if (ret)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008521 return ret;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008522
Joe Perchesd44570e2009-08-24 17:29:44 +00008523 DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);
8524
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008525 vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008526 tcph = (struct tcphdr *)*tcp;
8527 *tcp_len = get_l4_pyld_length(ip, tcph);
Joe Perchesd44570e2009-08-24 17:29:44 +00008528 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008529 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008530 if (l_lro->in_use) {
8531 if (check_for_socket_match(l_lro, ip, tcph))
8532 continue;
8533 /* Sock pair matched */
8534 *lro = l_lro;
8535
8536 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008537 DBG_PRINT(INFO_DBG, "%s: Out of sequence. "
8538 "expected 0x%x, actual 0x%x\n",
8539 __func__,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008540 (*lro)->tcp_next_seq,
8541 ntohl(tcph->seq));
8542
Joe Perchesffb5df62009-08-24 17:29:47 +00008543 swstats->outof_sequence_pkts++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008544 ret = 2;
8545 break;
8546 }
8547
Joe Perchesd44570e2009-08-24 17:29:44 +00008548 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,
8549 *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008550 ret = 1; /* Aggregate */
8551 else
8552 ret = 2; /* Flush both */
8553 break;
8554 }
8555 }
8556
8557 if (ret == 0) {
8558 /* Before searching for available LRO objects,
8559 * check if the pkt is L3/L4 aggregatable. If not
8560 * don't create new LRO session. Just send this
8561 * packet up.
8562 */
Joe Perchesd44570e2009-08-24 17:29:44 +00008563 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008564 return 5;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008565
Joe Perchesd44570e2009-08-24 17:29:44 +00008566 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008567 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008568 if (!(l_lro->in_use)) {
8569 *lro = l_lro;
8570 ret = 3; /* Begin anew */
8571 break;
8572 }
8573 }
8574 }
8575
8576 if (ret == 0) { /* sessions exceeded */
Joe Perches9e39f7c2009-08-25 08:52:00 +00008577 DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008578 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008579 *lro = NULL;
8580 return ret;
8581 }
8582
8583 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008584 case 3:
8585 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
8586 vlan_tag);
8587 break;
8588 case 2:
8589 update_L3L4_header(sp, *lro);
8590 break;
8591 case 1:
8592 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8593 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008594 update_L3L4_header(sp, *lro);
Joe Perchesd44570e2009-08-24 17:29:44 +00008595 ret = 4; /* Flush the LRO */
8596 }
8597 break;
8598 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00008599 DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__);
Joe Perchesd44570e2009-08-24 17:29:44 +00008600 break;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008601 }
8602
8603 return ret;
8604}
8605
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008606static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008607{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008608 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008609
8610 memset(lro, 0, lro_struct_size);
8611}
8612
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008613static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008614{
8615 struct net_device *dev = skb->dev;
Wang Chen4cf16532008-11-12 23:38:14 -08008616 struct s2io_nic *sp = netdev_priv(dev);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008617
8618 skb->protocol = eth_type_trans(skb, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00008619 if (sp->vlgrp && vlan_tag && (sp->vlan_strip_flag)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008620 /* Queueing the vlan frame to the upper layer */
8621 if (sp->config.napi)
8622 vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);
8623 else
8624 vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag);
8625 } else {
8626 if (sp->config.napi)
8627 netif_receive_skb(skb);
8628 else
8629 netif_rx(skb);
8630 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008631}
8632
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008633static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
Joe Perchesd44570e2009-08-24 17:29:44 +00008634 struct sk_buff *skb, u32 tcp_len)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008635{
Ananda Raju75c30b12006-07-24 19:55:09 -04008636 struct sk_buff *first = lro->parent;
Joe Perchesffb5df62009-08-24 17:29:47 +00008637 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008638
8639 first->len += tcp_len;
8640 first->data_len = lro->frags_len;
8641 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008642 if (skb_shinfo(first)->frag_list)
8643 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008644 else
8645 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008646 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008647 lro->last_frag = skb;
Joe Perchesffb5df62009-08-24 17:29:47 +00008648 swstats->clubbed_frms_cnt++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008649 return;
8650}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008651
8652/**
8653 * s2io_io_error_detected - called when PCI error is detected
8654 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008655 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008656 *
8657 * This function is called after a PCI bus error affecting
8658 * this device has been detected.
8659 */
8660static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00008661 pci_channel_state_t state)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008662{
8663 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008664 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008665
8666 netif_device_detach(netdev);
8667
Dean Nelson1e3c8bd2009-07-31 09:13:56 +00008668 if (state == pci_channel_io_perm_failure)
8669 return PCI_ERS_RESULT_DISCONNECT;
8670
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008671 if (netif_running(netdev)) {
8672 /* Bring down the card, while avoiding PCI I/O */
8673 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008674 }
8675 pci_disable_device(pdev);
8676
8677 return PCI_ERS_RESULT_NEED_RESET;
8678}
8679
8680/**
8681 * s2io_io_slot_reset - called after the pci bus has been reset.
8682 * @pdev: Pointer to PCI device
8683 *
8684 * Restart the card from scratch, as if from a cold-boot.
8685 * At this point, the card has exprienced a hard reset,
8686 * followed by fixups by BIOS, and has its config space
8687 * set up identically to what it was at cold boot.
8688 */
8689static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8690{
8691 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008692 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008693
8694 if (pci_enable_device(pdev)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008695 pr_err("Cannot re-enable PCI device after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008696 return PCI_ERS_RESULT_DISCONNECT;
8697 }
8698
8699 pci_set_master(pdev);
8700 s2io_reset(sp);
8701
8702 return PCI_ERS_RESULT_RECOVERED;
8703}
8704
8705/**
8706 * s2io_io_resume - called when traffic can start flowing again.
8707 * @pdev: Pointer to PCI device
8708 *
8709 * This callback is called when the error recovery driver tells
8710 * us that its OK to resume normal operation.
8711 */
8712static void s2io_io_resume(struct pci_dev *pdev)
8713{
8714 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008715 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008716
8717 if (netif_running(netdev)) {
8718 if (s2io_card_up(sp)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008719 pr_err("Can't bring device back up after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008720 return;
8721 }
8722
8723 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8724 s2io_card_down(sp);
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008725 pr_err("Can't restore mac addr after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008726 return;
8727 }
8728 }
8729
8730 netif_device_attach(netdev);
David S. Millerfd2ea0a2008-07-17 01:56:23 -07008731 netif_tx_wake_all_queues(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008732}