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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/************************************************************************
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07002 * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08003 * Copyright(c) 2002-2007 Neterion Inc.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
5 * 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
28 * explaination 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 ************************************************************************/
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#include <linux/module.h>
56#include <linux/types.h>
57#include <linux/errno.h>
58#include <linux/ioport.h>
59#include <linux/pci.h>
Domen Puncer1e7f0bd2005-06-26 18:22:14 -040060#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#include <linux/kernel.h>
62#include <linux/netdevice.h>
63#include <linux/etherdevice.h>
64#include <linux/skbuff.h>
65#include <linux/init.h>
66#include <linux/delay.h>
67#include <linux/stddef.h>
68#include <linux/ioctl.h>
69#include <linux/timex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070070#include <linux/ethtool.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070071#include <linux/workqueue.h>
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -070072#include <linux/if_vlan.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050073#include <linux/ip.h>
74#include <linux/tcp.h>
75#include <net/tcp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077#include <asm/system.h>
78#include <asm/uaccess.h>
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070079#include <asm/io.h>
Andrew Mortonfe931392006-02-03 01:45:12 -080080#include <asm/div64.h>
Andrew Morton330ce0d2006-08-14 23:00:14 -070081#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83/* local include */
84#include "s2io.h"
85#include "s2io-regs.h"
86
Ramkrishna Vepab7c56782007-12-17 11:40:15 -080087#define DRV_VERSION "2.0.26.15-2"
John Linville6c1792f2005-10-04 07:51:45 -040088
Linus Torvalds1da177e2005-04-16 15:20:36 -070089/* S2io Driver name & version. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070090static char s2io_driver_name[] = "Neterion";
John Linville6c1792f2005-10-04 07:51:45 -040091static char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
Veena Parat6d517a22007-07-23 02:20:51 -040093static int rxd_size[2] = {32,48};
94static int rxd_count[2] = {127,85};
Ananda Rajuda6971d2005-10-31 16:55:31 -050095
Ralf Baechle1ee6dd72007-01-31 14:09:29 -050096static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -070097{
98 int ret;
99
100 ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) &&
101 (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK));
102
103 return ret;
104}
105
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700106/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 * Cards with following subsystem_id have a link state indication
108 * problem, 600B, 600C, 600D, 640B, 640C and 640D.
109 * macro below identifies these cards given the subsystem_id.
110 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700111#define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
112 (dev_type == XFRAME_I_DEVICE) ? \
113 ((((subid >= 0x600B) && (subid <= 0x600D)) || \
114 ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
116#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
117 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
118#define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status))
119#define PANIC 1
120#define LOW 2
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500121static inline int rx_buffer_level(struct s2io_nic * sp, int rxb_size, int ring)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500123 struct mac_info *mac_control;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700124
125 mac_control = &sp->mac_control;
Ananda Raju863c11a2006-04-21 19:03:13 -0400126 if (rxb_size <= rxd_count[sp->rxd_mode])
127 return PANIC;
128 else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16)
129 return LOW;
130 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131}
132
Sivakumar Subramani92b84432007-09-06 06:51:14 -0400133static inline int is_s2io_card_up(const struct s2io_nic * sp)
134{
135 return test_bit(__S2IO_STATE_CARD_UP, &sp->state);
136}
137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138/* Ethtool related variables and Macros. */
139static char s2io_gstrings[][ETH_GSTRING_LEN] = {
140 "Register test\t(offline)",
141 "Eeprom test\t(offline)",
142 "Link test\t(online)",
143 "RLDRAM test\t(offline)",
144 "BIST Test\t(offline)"
145};
146
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500147static char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 {"tmac_frms"},
149 {"tmac_data_octets"},
150 {"tmac_drop_frms"},
151 {"tmac_mcst_frms"},
152 {"tmac_bcst_frms"},
153 {"tmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400154 {"tmac_ttl_octets"},
155 {"tmac_ucst_frms"},
156 {"tmac_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 {"tmac_any_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400158 {"tmac_ttl_less_fb_octets"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 {"tmac_vld_ip_octets"},
160 {"tmac_vld_ip"},
161 {"tmac_drop_ip"},
162 {"tmac_icmp"},
163 {"tmac_rst_tcp"},
164 {"tmac_tcp"},
165 {"tmac_udp"},
166 {"rmac_vld_frms"},
167 {"rmac_data_octets"},
168 {"rmac_fcs_err_frms"},
169 {"rmac_drop_frms"},
170 {"rmac_vld_mcst_frms"},
171 {"rmac_vld_bcst_frms"},
172 {"rmac_in_rng_len_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400173 {"rmac_out_rng_len_err_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 {"rmac_long_frms"},
175 {"rmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400176 {"rmac_unsup_ctrl_frms"},
177 {"rmac_ttl_octets"},
178 {"rmac_accepted_ucst_frms"},
179 {"rmac_accepted_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 {"rmac_discarded_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400181 {"rmac_drop_events"},
182 {"rmac_ttl_less_fb_octets"},
183 {"rmac_ttl_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 {"rmac_usized_frms"},
185 {"rmac_osized_frms"},
186 {"rmac_frag_frms"},
187 {"rmac_jabber_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400188 {"rmac_ttl_64_frms"},
189 {"rmac_ttl_65_127_frms"},
190 {"rmac_ttl_128_255_frms"},
191 {"rmac_ttl_256_511_frms"},
192 {"rmac_ttl_512_1023_frms"},
193 {"rmac_ttl_1024_1518_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 {"rmac_ip"},
195 {"rmac_ip_octets"},
196 {"rmac_hdr_err_ip"},
197 {"rmac_drop_ip"},
198 {"rmac_icmp"},
199 {"rmac_tcp"},
200 {"rmac_udp"},
201 {"rmac_err_drp_udp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400202 {"rmac_xgmii_err_sym"},
203 {"rmac_frms_q0"},
204 {"rmac_frms_q1"},
205 {"rmac_frms_q2"},
206 {"rmac_frms_q3"},
207 {"rmac_frms_q4"},
208 {"rmac_frms_q5"},
209 {"rmac_frms_q6"},
210 {"rmac_frms_q7"},
211 {"rmac_full_q0"},
212 {"rmac_full_q1"},
213 {"rmac_full_q2"},
214 {"rmac_full_q3"},
215 {"rmac_full_q4"},
216 {"rmac_full_q5"},
217 {"rmac_full_q6"},
218 {"rmac_full_q7"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 {"rmac_pause_cnt"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400220 {"rmac_xgmii_data_err_cnt"},
221 {"rmac_xgmii_ctrl_err_cnt"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 {"rmac_accepted_ip"},
223 {"rmac_err_tcp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400224 {"rd_req_cnt"},
225 {"new_rd_req_cnt"},
226 {"new_rd_req_rtry_cnt"},
227 {"rd_rtry_cnt"},
228 {"wr_rtry_rd_ack_cnt"},
229 {"wr_req_cnt"},
230 {"new_wr_req_cnt"},
231 {"new_wr_req_rtry_cnt"},
232 {"wr_rtry_cnt"},
233 {"wr_disc_cnt"},
234 {"rd_rtry_wr_ack_cnt"},
235 {"txp_wr_cnt"},
236 {"txd_rd_cnt"},
237 {"txd_wr_cnt"},
238 {"rxd_rd_cnt"},
239 {"rxd_wr_cnt"},
240 {"txf_rd_cnt"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500241 {"rxf_wr_cnt"}
242};
243
244static char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = {
Ananda Rajubd1034f2006-04-21 19:20:22 -0400245 {"rmac_ttl_1519_4095_frms"},
246 {"rmac_ttl_4096_8191_frms"},
247 {"rmac_ttl_8192_max_frms"},
248 {"rmac_ttl_gt_max_frms"},
249 {"rmac_osized_alt_frms"},
250 {"rmac_jabber_alt_frms"},
251 {"rmac_gt_max_alt_frms"},
252 {"rmac_vlan_frms"},
253 {"rmac_len_discard"},
254 {"rmac_fcs_discard"},
255 {"rmac_pf_discard"},
256 {"rmac_da_discard"},
257 {"rmac_red_discard"},
258 {"rmac_rts_discard"},
259 {"rmac_ingm_full_discard"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500260 {"link_fault_cnt"}
261};
262
263static char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700264 {"\n DRIVER STATISTICS"},
265 {"single_bit_ecc_errs"},
266 {"double_bit_ecc_errs"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400267 {"parity_err_cnt"},
268 {"serious_err_cnt"},
269 {"soft_reset_cnt"},
270 {"fifo_full_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700271 {"ring_0_full_cnt"},
272 {"ring_1_full_cnt"},
273 {"ring_2_full_cnt"},
274 {"ring_3_full_cnt"},
275 {"ring_4_full_cnt"},
276 {"ring_5_full_cnt"},
277 {"ring_6_full_cnt"},
278 {"ring_7_full_cnt"},
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700279 {"alarm_transceiver_temp_high"},
280 {"alarm_transceiver_temp_low"},
281 {"alarm_laser_bias_current_high"},
282 {"alarm_laser_bias_current_low"},
283 {"alarm_laser_output_power_high"},
284 {"alarm_laser_output_power_low"},
285 {"warn_transceiver_temp_high"},
286 {"warn_transceiver_temp_low"},
287 {"warn_laser_bias_current_high"},
288 {"warn_laser_bias_current_low"},
289 {"warn_laser_output_power_high"},
290 {"warn_laser_output_power_low"},
291 {"lro_aggregated_pkts"},
292 {"lro_flush_both_count"},
293 {"lro_out_of_sequence_pkts"},
294 {"lro_flush_due_to_max_pkts"},
295 {"lro_avg_aggr_pkts"},
296 {"mem_alloc_fail_cnt"},
297 {"pci_map_fail_cnt"},
298 {"watchdog_timer_cnt"},
299 {"mem_allocated"},
300 {"mem_freed"},
301 {"link_up_cnt"},
302 {"link_down_cnt"},
303 {"link_up_time"},
304 {"link_down_time"},
305 {"tx_tcode_buf_abort_cnt"},
306 {"tx_tcode_desc_abort_cnt"},
307 {"tx_tcode_parity_err_cnt"},
308 {"tx_tcode_link_loss_cnt"},
309 {"tx_tcode_list_proc_err_cnt"},
310 {"rx_tcode_parity_err_cnt"},
311 {"rx_tcode_abort_cnt"},
312 {"rx_tcode_parity_abort_cnt"},
313 {"rx_tcode_rda_fail_cnt"},
314 {"rx_tcode_unkn_prot_cnt"},
315 {"rx_tcode_fcs_err_cnt"},
316 {"rx_tcode_buf_size_err_cnt"},
317 {"rx_tcode_rxd_corrupt_cnt"},
318 {"rx_tcode_unkn_err_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700319 {"tda_err_cnt"},
320 {"pfc_err_cnt"},
321 {"pcc_err_cnt"},
322 {"tti_err_cnt"},
323 {"tpa_err_cnt"},
324 {"sm_err_cnt"},
325 {"lso_err_cnt"},
326 {"mac_tmac_err_cnt"},
327 {"mac_rmac_err_cnt"},
328 {"xgxs_txgxs_err_cnt"},
329 {"xgxs_rxgxs_err_cnt"},
330 {"rc_err_cnt"},
331 {"prc_pcix_err_cnt"},
332 {"rpa_err_cnt"},
333 {"rda_err_cnt"},
334 {"rti_err_cnt"},
335 {"mc_err_cnt"}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336};
337
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200338#define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys)
339#define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys)
340#define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500341
342#define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN )
343#define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN )
344
345#define XFRAME_I_STAT_STRINGS_LEN ( XFRAME_I_STAT_LEN * ETH_GSTRING_LEN )
346#define XFRAME_II_STAT_STRINGS_LEN ( XFRAME_II_STAT_LEN * ETH_GSTRING_LEN )
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200348#define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349#define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN
350
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700351#define S2IO_TIMER_CONF(timer, handle, arg, exp) \
352 init_timer(&timer); \
353 timer.function = handle; \
354 timer.data = (unsigned long) arg; \
355 mod_timer(&timer, (jiffies + exp)) \
356
Sivakumar Subramani2fd37682007-09-14 07:39:19 -0400357/* copy mac addr to def_mac_addr array */
358static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr)
359{
360 sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr);
361 sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8);
362 sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16);
363 sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24);
364 sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32);
365 sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40);
366}
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700367/* Add the vlan */
368static void s2io_vlan_rx_register(struct net_device *dev,
369 struct vlan_group *grp)
370{
Surjit Reang2fda0962008-01-24 02:08:59 -0800371 int i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500372 struct s2io_nic *nic = dev->priv;
Surjit Reang2fda0962008-01-24 02:08:59 -0800373 unsigned long flags[MAX_TX_FIFOS];
374 struct mac_info *mac_control = &nic->mac_control;
375 struct config_param *config = &nic->config;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700376
Surjit Reang2fda0962008-01-24 02:08:59 -0800377 for (i = 0; i < config->tx_fifo_num; i++)
378 spin_lock_irqsave(&mac_control->fifos[i].tx_lock, flags[i]);
379
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700380 nic->vlgrp = grp;
Surjit Reang2fda0962008-01-24 02:08:59 -0800381 for (i = config->tx_fifo_num - 1; i >= 0; i--)
382 spin_unlock_irqrestore(&mac_control->fifos[i].tx_lock,
383 flags[i]);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700384}
385
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500386/* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */
Adrian Bunk7b490342007-03-05 02:49:25 +0100387static int vlan_strip_flag;
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500388
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700389/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 * Constants to be programmed into the Xena's registers, to configure
391 * the XAUI.
392 */
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394#define END_SIGN 0x0
Arjan van de Venf71e1302006-03-03 21:33:57 -0500395static const u64 herc_act_dtx_cfg[] = {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700396 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700397 0x8000051536750000ULL, 0x80000515367500E0ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700398 /* Write data */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700399 0x8000051536750004ULL, 0x80000515367500E4ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700400 /* Set address */
401 0x80010515003F0000ULL, 0x80010515003F00E0ULL,
402 /* Write data */
403 0x80010515003F0004ULL, 0x80010515003F00E4ULL,
404 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700405 0x801205150D440000ULL, 0x801205150D4400E0ULL,
406 /* Write data */
407 0x801205150D440004ULL, 0x801205150D4400E4ULL,
408 /* Set address */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700409 0x80020515F2100000ULL, 0x80020515F21000E0ULL,
410 /* Write data */
411 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
412 /* Done */
413 END_SIGN
414};
415
Arjan van de Venf71e1302006-03-03 21:33:57 -0500416static const u64 xena_dtx_cfg[] = {
Ananda Rajuc92ca042006-04-21 19:18:03 -0400417 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 0x8000051500000000ULL, 0x80000515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400419 /* Write data */
420 0x80000515D9350004ULL, 0x80000515D93500E4ULL,
421 /* Set address */
422 0x8001051500000000ULL, 0x80010515000000E0ULL,
423 /* Write data */
424 0x80010515001E0004ULL, 0x80010515001E00E4ULL,
425 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 0x8002051500000000ULL, 0x80020515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400427 /* Write data */
428 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 END_SIGN
430};
431
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700432/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 * Constants for Fixing the MacAddress problem seen mostly on
434 * Alpha machines.
435 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500436static const u64 fix_mac[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 0x0060000000000000ULL, 0x0060600000000000ULL,
438 0x0040600000000000ULL, 0x0000600000000000ULL,
439 0x0020600000000000ULL, 0x0060600000000000ULL,
440 0x0020600000000000ULL, 0x0060600000000000ULL,
441 0x0020600000000000ULL, 0x0060600000000000ULL,
442 0x0020600000000000ULL, 0x0060600000000000ULL,
443 0x0020600000000000ULL, 0x0060600000000000ULL,
444 0x0020600000000000ULL, 0x0060600000000000ULL,
445 0x0020600000000000ULL, 0x0060600000000000ULL,
446 0x0020600000000000ULL, 0x0060600000000000ULL,
447 0x0020600000000000ULL, 0x0060600000000000ULL,
448 0x0020600000000000ULL, 0x0060600000000000ULL,
449 0x0020600000000000ULL, 0x0000600000000000ULL,
450 0x0040600000000000ULL, 0x0060600000000000ULL,
451 END_SIGN
452};
453
Ananda Rajub41477f2006-07-24 19:52:49 -0400454MODULE_LICENSE("GPL");
455MODULE_VERSION(DRV_VERSION);
456
457
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458/* Module Loadable parameters. */
Ananda Rajub41477f2006-07-24 19:52:49 -0400459S2IO_PARM_INT(tx_fifo_num, 1);
460S2IO_PARM_INT(rx_ring_num, 1);
461
462
463S2IO_PARM_INT(rx_ring_mode, 1);
464S2IO_PARM_INT(use_continuous_tx_intrs, 1);
465S2IO_PARM_INT(rmac_pause_time, 0x100);
466S2IO_PARM_INT(mc_pause_threshold_q0q3, 187);
467S2IO_PARM_INT(mc_pause_threshold_q4q7, 187);
468S2IO_PARM_INT(shared_splits, 0);
469S2IO_PARM_INT(tmac_util_period, 5);
470S2IO_PARM_INT(rmac_util_period, 5);
Ananda Rajub41477f2006-07-24 19:52:49 -0400471S2IO_PARM_INT(l3l4hdr_size, 128);
472/* Frequency of Rx desc syncs expressed as power of 2 */
473S2IO_PARM_INT(rxsync_frequency, 3);
Veena Parateccb8622007-07-23 02:23:54 -0400474/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -0700475S2IO_PARM_INT(intr_type, 2);
Ananda Rajub41477f2006-07-24 19:52:49 -0400476/* Large receive offload feature */
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700477static unsigned int lro_enable;
478module_param_named(lro, lro_enable, uint, 0);
479
Ananda Rajub41477f2006-07-24 19:52:49 -0400480/* Max pkts to be aggregated by LRO at one time. If not specified,
481 * aggregation happens until we hit max IP pkt size(64K)
482 */
483S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
Ananda Rajub41477f2006-07-24 19:52:49 -0400484S2IO_PARM_INT(indicate_max_pkts, 0);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -0500485
486S2IO_PARM_INT(napi, 1);
487S2IO_PARM_INT(ufo, 0);
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500488S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC);
Ananda Rajub41477f2006-07-24 19:52:49 -0400489
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
Ananda Raju9dc737a2006-04-21 19:05:41 -0400491 {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492static unsigned int rx_ring_sz[MAX_RX_RINGS] =
Ananda Raju9dc737a2006-04-21 19:05:41 -0400493 {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700494static unsigned int rts_frm_len[MAX_RX_RINGS] =
495 {[0 ...(MAX_RX_RINGS - 1)] = 0 };
Ananda Rajub41477f2006-07-24 19:52:49 -0400496
497module_param_array(tx_fifo_len, uint, NULL, 0);
498module_param_array(rx_ring_sz, uint, NULL, 0);
499module_param_array(rts_frm_len, uint, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700501/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 * S2IO device table.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700503 * This table lists all the devices that this driver supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 */
505static struct pci_device_id s2io_tbl[] __devinitdata = {
506 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN,
507 PCI_ANY_ID, PCI_ANY_ID},
508 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI,
509 PCI_ANY_ID, PCI_ANY_ID},
510 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700511 PCI_ANY_ID, PCI_ANY_ID},
512 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI,
513 PCI_ANY_ID, PCI_ANY_ID},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 {0,}
515};
516
517MODULE_DEVICE_TABLE(pci, s2io_tbl);
518
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500519static struct pci_error_handlers s2io_err_handler = {
520 .error_detected = s2io_io_error_detected,
521 .slot_reset = s2io_io_slot_reset,
522 .resume = s2io_io_resume,
523};
524
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525static struct pci_driver s2io_driver = {
526 .name = "S2IO",
527 .id_table = s2io_tbl,
528 .probe = s2io_init_nic,
529 .remove = __devexit_p(s2io_rem_nic),
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500530 .err_handler = &s2io_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531};
532
533/* A simplifier macro used both by init and free shared_mem Fns(). */
534#define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
535
536/**
537 * init_shared_mem - Allocation and Initialization of Memory
538 * @nic: Device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700539 * Description: The function allocates all the memory areas shared
540 * between the NIC and the driver. This includes Tx descriptors,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 * Rx descriptors and the statistics block.
542 */
543
544static int init_shared_mem(struct s2io_nic *nic)
545{
546 u32 size;
547 void *tmp_v_addr, *tmp_v_addr_next;
548 dma_addr_t tmp_p_addr, tmp_p_addr_next;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500549 struct RxD_block *pre_rxd_blk = NULL;
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500550 int i, j, blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 int lst_size, lst_per_page;
552 struct net_device *dev = nic->dev;
viro@zenIV.linux.org.uk8ae418c2005-09-02 20:15:29 +0100553 unsigned long tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500554 struct buffAdd *ba;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500556 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557 struct config_param *config;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400558 unsigned long long mem_allocated = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559
560 mac_control = &nic->mac_control;
561 config = &nic->config;
562
563
564 /* Allocation and initialization of TXDLs in FIOFs */
565 size = 0;
566 for (i = 0; i < config->tx_fifo_num; i++) {
567 size += config->tx_cfg[i].fifo_len;
568 }
569 if (size > MAX_AVAILABLE_TXDS) {
Ananda Rajub41477f2006-07-24 19:52:49 -0400570 DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, ");
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -0700571 DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size);
Ananda Rajub41477f2006-07-24 19:52:49 -0400572 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573 }
574
Surjit Reang2fda0962008-01-24 02:08:59 -0800575 size = 0;
576 for (i = 0; i < config->tx_fifo_num; i++) {
577 size = config->tx_cfg[i].fifo_len;
578 /*
579 * Legal values are from 2 to 8192
580 */
581 if (size < 2) {
582 DBG_PRINT(ERR_DBG, "s2io: Invalid fifo len (%d)", size);
583 DBG_PRINT(ERR_DBG, "for fifo %d\n", i);
584 DBG_PRINT(ERR_DBG, "s2io: Legal values for fifo len"
585 "are 2 to 8192\n");
586 return -EINVAL;
587 }
588 }
589
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500590 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 lst_per_page = PAGE_SIZE / lst_size;
592
593 for (i = 0; i < config->tx_fifo_num; i++) {
594 int fifo_len = config->tx_cfg[i].fifo_len;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500595 int list_holder_size = fifo_len * sizeof(struct list_info_hold);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -0400596 mac_control->fifos[i].list_info = kzalloc(list_holder_size,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700597 GFP_KERNEL);
598 if (!mac_control->fifos[i].list_info) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800599 DBG_PRINT(INFO_DBG,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 "Malloc failed for list_info\n");
601 return -ENOMEM;
602 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400603 mem_allocated += list_holder_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604 }
605 for (i = 0; i < config->tx_fifo_num; i++) {
606 int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
607 lst_per_page);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700608 mac_control->fifos[i].tx_curr_put_info.offset = 0;
609 mac_control->fifos[i].tx_curr_put_info.fifo_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 config->tx_cfg[i].fifo_len - 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700611 mac_control->fifos[i].tx_curr_get_info.offset = 0;
612 mac_control->fifos[i].tx_curr_get_info.fifo_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613 config->tx_cfg[i].fifo_len - 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700614 mac_control->fifos[i].fifo_no = i;
615 mac_control->fifos[i].nic = nic;
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500616 mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 2;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 for (j = 0; j < page_num; j++) {
619 int k = 0;
620 dma_addr_t tmp_p;
621 void *tmp_v;
622 tmp_v = pci_alloc_consistent(nic->pdev,
623 PAGE_SIZE, &tmp_p);
624 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800625 DBG_PRINT(INFO_DBG,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 "pci_alloc_consistent ");
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800627 DBG_PRINT(INFO_DBG, "failed for TxDL\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 return -ENOMEM;
629 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700630 /* If we got a zero DMA address(can happen on
631 * certain platforms like PPC), reallocate.
632 * Store virtual address of page we don't want,
633 * to be freed later.
634 */
635 if (!tmp_p) {
636 mac_control->zerodma_virt_addr = tmp_v;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400637 DBG_PRINT(INIT_DBG,
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700638 "%s: Zero DMA address for TxDL. ", dev->name);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400639 DBG_PRINT(INIT_DBG,
Andrew Morton6b4d6172005-09-12 23:21:55 -0700640 "Virtual address %p\n", tmp_v);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700641 tmp_v = pci_alloc_consistent(nic->pdev,
642 PAGE_SIZE, &tmp_p);
643 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800644 DBG_PRINT(INFO_DBG,
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700645 "pci_alloc_consistent ");
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800646 DBG_PRINT(INFO_DBG, "failed for TxDL\n");
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700647 return -ENOMEM;
648 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400649 mem_allocated += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700650 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 while (k < lst_per_page) {
652 int l = (j * lst_per_page) + k;
653 if (l == config->tx_cfg[i].fifo_len)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700654 break;
655 mac_control->fifos[i].list_info[l].list_virt_addr =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 tmp_v + (k * lst_size);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700657 mac_control->fifos[i].list_info[l].list_phy_addr =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 tmp_p + (k * lst_size);
659 k++;
660 }
661 }
662 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Surjit Reang2fda0962008-01-24 02:08:59 -0800664 for (i = 0; i < config->tx_fifo_num; i++) {
665 size = config->tx_cfg[i].fifo_len;
666 mac_control->fifos[i].ufo_in_band_v
667 = kcalloc(size, sizeof(u64), GFP_KERNEL);
668 if (!mac_control->fifos[i].ufo_in_band_v)
669 return -ENOMEM;
670 mem_allocated += (size * sizeof(u64));
671 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500672
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 /* Allocation and initialization of RXDs in Rings */
674 size = 0;
675 for (i = 0; i < config->rx_ring_num; i++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500676 if (config->rx_cfg[i].num_rxd %
677 (rxd_count[nic->rxd_mode] + 1)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name);
679 DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ",
680 i);
681 DBG_PRINT(ERR_DBG, "RxDs per Block");
682 return FAILURE;
683 }
684 size += config->rx_cfg[i].num_rxd;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700685 mac_control->rings[i].block_count =
Ananda Rajuda6971d2005-10-31 16:55:31 -0500686 config->rx_cfg[i].num_rxd /
687 (rxd_count[nic->rxd_mode] + 1 );
688 mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd -
689 mac_control->rings[i].block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500691 if (nic->rxd_mode == RXD_MODE_1)
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500692 size = (size * (sizeof(struct RxD1)));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500693 else
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500694 size = (size * (sizeof(struct RxD3)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695
696 for (i = 0; i < config->rx_ring_num; i++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700697 mac_control->rings[i].rx_curr_get_info.block_index = 0;
698 mac_control->rings[i].rx_curr_get_info.offset = 0;
699 mac_control->rings[i].rx_curr_get_info.ring_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 config->rx_cfg[i].num_rxd - 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700701 mac_control->rings[i].rx_curr_put_info.block_index = 0;
702 mac_control->rings[i].rx_curr_put_info.offset = 0;
703 mac_control->rings[i].rx_curr_put_info.ring_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 config->rx_cfg[i].num_rxd - 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700705 mac_control->rings[i].nic = nic;
706 mac_control->rings[i].ring_no = i;
707
Ananda Rajuda6971d2005-10-31 16:55:31 -0500708 blk_cnt = config->rx_cfg[i].num_rxd /
709 (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 /* Allocating all the Rx blocks */
711 for (j = 0; j < blk_cnt; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500712 struct rx_block_info *rx_blocks;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500713 int l;
714
715 rx_blocks = &mac_control->rings[i].rx_blocks[j];
716 size = SIZE_OF_BLOCK; //size is always page size
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
718 &tmp_p_addr);
719 if (tmp_v_addr == NULL) {
720 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700721 * In case of failure, free_shared_mem()
722 * is called, which should free any
723 * memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 * failure happened.
725 */
Ananda Rajuda6971d2005-10-31 16:55:31 -0500726 rx_blocks->block_virt_addr = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 return -ENOMEM;
728 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400729 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 memset(tmp_v_addr, 0, size);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500731 rx_blocks->block_virt_addr = tmp_v_addr;
732 rx_blocks->block_dma_addr = tmp_p_addr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500733 rx_blocks->rxds = kmalloc(sizeof(struct rxd_info)*
Ananda Rajuda6971d2005-10-31 16:55:31 -0500734 rxd_count[nic->rxd_mode],
735 GFP_KERNEL);
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500736 if (!rx_blocks->rxds)
737 return -ENOMEM;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400738 mem_allocated +=
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400739 (sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500740 for (l=0; l<rxd_count[nic->rxd_mode];l++) {
741 rx_blocks->rxds[l].virt_addr =
742 rx_blocks->block_virt_addr +
743 (rxd_size[nic->rxd_mode] * l);
744 rx_blocks->rxds[l].dma_addr =
745 rx_blocks->block_dma_addr +
746 (rxd_size[nic->rxd_mode] * l);
747 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 }
749 /* Interlinking all Rx Blocks */
750 for (j = 0; j < blk_cnt; j++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700751 tmp_v_addr =
752 mac_control->rings[i].rx_blocks[j].block_virt_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 tmp_v_addr_next =
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700754 mac_control->rings[i].rx_blocks[(j + 1) %
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 blk_cnt].block_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700756 tmp_p_addr =
757 mac_control->rings[i].rx_blocks[j].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758 tmp_p_addr_next =
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700759 mac_control->rings[i].rx_blocks[(j + 1) %
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 blk_cnt].block_dma_addr;
761
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500762 pre_rxd_blk = (struct RxD_block *) tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 pre_rxd_blk->reserved_2_pNext_RxD_block =
764 (unsigned long) tmp_v_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 pre_rxd_blk->pNext_RxD_Blk_physical =
766 (u64) tmp_p_addr_next;
767 }
768 }
Veena Parat6d517a22007-07-23 02:20:51 -0400769 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500770 /*
771 * Allocation of Storages for buffer addresses in 2BUFF mode
772 * and the buffers as well.
773 */
774 for (i = 0; i < config->rx_ring_num; i++) {
775 blk_cnt = config->rx_cfg[i].num_rxd /
776 (rxd_count[nic->rxd_mode]+ 1);
777 mac_control->rings[i].ba =
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500778 kmalloc((sizeof(struct buffAdd *) * blk_cnt),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500780 if (!mac_control->rings[i].ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 return -ENOMEM;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400782 mem_allocated +=(sizeof(struct buffAdd *) * blk_cnt);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500783 for (j = 0; j < blk_cnt; j++) {
784 int k = 0;
785 mac_control->rings[i].ba[j] =
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500786 kmalloc((sizeof(struct buffAdd) *
Ananda Rajuda6971d2005-10-31 16:55:31 -0500787 (rxd_count[nic->rxd_mode] + 1)),
788 GFP_KERNEL);
789 if (!mac_control->rings[i].ba[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 return -ENOMEM;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400791 mem_allocated += (sizeof(struct buffAdd) * \
792 (rxd_count[nic->rxd_mode] + 1));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500793 while (k != rxd_count[nic->rxd_mode]) {
794 ba = &mac_control->rings[i].ba[j][k];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795
Ananda Rajuda6971d2005-10-31 16:55:31 -0500796 ba->ba_0_org = (void *) kmalloc
797 (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL);
798 if (!ba->ba_0_org)
799 return -ENOMEM;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400800 mem_allocated +=
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400801 (BUF0_LEN + ALIGN_SIZE);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500802 tmp = (unsigned long)ba->ba_0_org;
803 tmp += ALIGN_SIZE;
804 tmp &= ~((unsigned long) ALIGN_SIZE);
805 ba->ba_0 = (void *) tmp;
806
807 ba->ba_1_org = (void *) kmalloc
808 (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL);
809 if (!ba->ba_1_org)
810 return -ENOMEM;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400811 mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400812 += (BUF1_LEN + ALIGN_SIZE);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500813 tmp = (unsigned long) ba->ba_1_org;
814 tmp += ALIGN_SIZE;
815 tmp &= ~((unsigned long) ALIGN_SIZE);
816 ba->ba_1 = (void *) tmp;
817 k++;
818 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 }
820 }
821 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
823 /* Allocation and initialization of Statistics block */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500824 size = sizeof(struct stat_block);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825 mac_control->stats_mem = pci_alloc_consistent
826 (nic->pdev, size, &mac_control->stats_mem_phy);
827
828 if (!mac_control->stats_mem) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700829 /*
830 * In case of failure, free_shared_mem() is called, which
831 * should free any memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832 * failure happened.
833 */
834 return -ENOMEM;
835 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400836 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837 mac_control->stats_mem_sz = size;
838
839 tmp_v_addr = mac_control->stats_mem;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500840 mac_control->stats_info = (struct stat_block *) tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841 memset(tmp_v_addr, 0, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 DBG_PRINT(INIT_DBG, "%s:Ring Mem PHY: 0x%llx\n", dev->name,
843 (unsigned long long) tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400844 mac_control->stats_info->sw_stat.mem_allocated += mem_allocated;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 return SUCCESS;
846}
847
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700848/**
849 * free_shared_mem - Free the allocated Memory
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 * @nic: Device private variable.
851 * Description: This function is to free all memory locations allocated by
852 * the init_shared_mem() function and return it to the kernel.
853 */
854
855static void free_shared_mem(struct s2io_nic *nic)
856{
857 int i, j, blk_cnt, size;
858 void *tmp_v_addr;
859 dma_addr_t tmp_p_addr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500860 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 struct config_param *config;
862 int lst_size, lst_per_page;
Micah Gruber8910b492007-07-09 11:29:04 +0800863 struct net_device *dev;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400864 int page_num = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865
866 if (!nic)
867 return;
868
Micah Gruber8910b492007-07-09 11:29:04 +0800869 dev = nic->dev;
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 mac_control = &nic->mac_control;
872 config = &nic->config;
873
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500874 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 lst_per_page = PAGE_SIZE / lst_size;
876
877 for (i = 0; i < config->tx_fifo_num; i++) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400878 page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
879 lst_per_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 for (j = 0; j < page_num; j++) {
881 int mem_blks = (j * lst_per_page);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700882 if (!mac_control->fifos[i].list_info)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400883 return;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700884 if (!mac_control->fifos[i].list_info[mem_blks].
885 list_virt_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 break;
887 pci_free_consistent(nic->pdev, PAGE_SIZE,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700888 mac_control->fifos[i].
889 list_info[mem_blks].
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 list_virt_addr,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700891 mac_control->fifos[i].
892 list_info[mem_blks].
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893 list_phy_addr);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400894 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400895 += PAGE_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700897 /* If we got a zero DMA address during allocation,
898 * free the page now
899 */
900 if (mac_control->zerodma_virt_addr) {
901 pci_free_consistent(nic->pdev, PAGE_SIZE,
902 mac_control->zerodma_virt_addr,
903 (dma_addr_t)0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400904 DBG_PRINT(INIT_DBG,
Andrew Morton6b4d6172005-09-12 23:21:55 -0700905 "%s: Freeing TxDL with zero DMA addr. ",
906 dev->name);
907 DBG_PRINT(INIT_DBG, "Virtual address %p\n",
908 mac_control->zerodma_virt_addr);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400909 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400910 += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700911 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700912 kfree(mac_control->fifos[i].list_info);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400913 nic->mac_control.stats_info->sw_stat.mem_freed +=
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400914 (nic->config.tx_cfg[i].fifo_len *sizeof(struct list_info_hold));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915 }
916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 size = SIZE_OF_BLOCK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 for (i = 0; i < config->rx_ring_num; i++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700919 blk_cnt = mac_control->rings[i].block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 for (j = 0; j < blk_cnt; j++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700921 tmp_v_addr = mac_control->rings[i].rx_blocks[j].
922 block_virt_addr;
923 tmp_p_addr = mac_control->rings[i].rx_blocks[j].
924 block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 if (tmp_v_addr == NULL)
926 break;
927 pci_free_consistent(nic->pdev, size,
928 tmp_v_addr, tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400929 nic->mac_control.stats_info->sw_stat.mem_freed += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500930 kfree(mac_control->rings[i].rx_blocks[j].rxds);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400931 nic->mac_control.stats_info->sw_stat.mem_freed +=
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400932 ( sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 }
934 }
935
Veena Parat6d517a22007-07-23 02:20:51 -0400936 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500937 /* Freeing buffer storage addresses in 2BUFF mode. */
938 for (i = 0; i < config->rx_ring_num; i++) {
939 blk_cnt = config->rx_cfg[i].num_rxd /
940 (rxd_count[nic->rxd_mode] + 1);
941 for (j = 0; j < blk_cnt; j++) {
942 int k = 0;
943 if (!mac_control->rings[i].ba[j])
944 continue;
945 while (k != rxd_count[nic->rxd_mode]) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500946 struct buffAdd *ba =
Ananda Rajuda6971d2005-10-31 16:55:31 -0500947 &mac_control->rings[i].ba[j][k];
948 kfree(ba->ba_0_org);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400949 nic->mac_control.stats_info->sw_stat.\
950 mem_freed += (BUF0_LEN + ALIGN_SIZE);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500951 kfree(ba->ba_1_org);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400952 nic->mac_control.stats_info->sw_stat.\
953 mem_freed += (BUF1_LEN + ALIGN_SIZE);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500954 k++;
955 }
956 kfree(mac_control->rings[i].ba[j]);
Sivakumar Subramani9caab452007-09-06 06:21:54 -0400957 nic->mac_control.stats_info->sw_stat.mem_freed +=
958 (sizeof(struct buffAdd) *
959 (rxd_count[nic->rxd_mode] + 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500961 kfree(mac_control->rings[i].ba);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -0400962 nic->mac_control.stats_info->sw_stat.mem_freed +=
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400963 (sizeof(struct buffAdd *) * blk_cnt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966
Surjit Reang2fda0962008-01-24 02:08:59 -0800967 for (i = 0; i < nic->config.tx_fifo_num; i++) {
968 if (mac_control->fifos[i].ufo_in_band_v) {
969 nic->mac_control.stats_info->sw_stat.mem_freed
970 += (config->tx_cfg[i].fifo_len * sizeof(u64));
971 kfree(mac_control->fifos[i].ufo_in_band_v);
972 }
973 }
974
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 if (mac_control->stats_mem) {
Surjit Reang2fda0962008-01-24 02:08:59 -0800976 nic->mac_control.stats_info->sw_stat.mem_freed +=
977 mac_control->stats_mem_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978 pci_free_consistent(nic->pdev,
979 mac_control->stats_mem_sz,
980 mac_control->stats_mem,
981 mac_control->stats_mem_phy);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400982 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983}
984
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700985/**
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700986 * s2io_verify_pci_mode -
987 */
988
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500989static int s2io_verify_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700990{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500991 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700992 register u64 val64 = 0;
993 int mode;
994
995 val64 = readq(&bar0->pci_mode);
996 mode = (u8)GET_PCI_MODE(val64);
997
998 if ( val64 & PCI_MODE_UNKNOWN_MODE)
999 return -1; /* Unknown PCI mode */
1000 return mode;
1001}
1002
Ananda Rajuc92ca042006-04-21 19:18:03 -04001003#define NEC_VENID 0x1033
1004#define NEC_DEVID 0x0125
1005static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
1006{
1007 struct pci_dev *tdev = NULL;
Alan Cox26d36b62006-09-15 15:22:51 +01001008 while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
1009 if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001010 if (tdev->bus == s2io_pdev->bus->parent)
Alan Cox26d36b62006-09-15 15:22:51 +01001011 pci_dev_put(tdev);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001012 return 1;
1013 }
1014 }
1015 return 0;
1016}
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001017
Adrian Bunk7b32a312006-05-16 17:30:50 +02001018static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001019/**
1020 * s2io_print_pci_mode -
1021 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001022static int s2io_print_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001023{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001024 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001025 register u64 val64 = 0;
1026 int mode;
1027 struct config_param *config = &nic->config;
1028
1029 val64 = readq(&bar0->pci_mode);
1030 mode = (u8)GET_PCI_MODE(val64);
1031
1032 if ( val64 & PCI_MODE_UNKNOWN_MODE)
1033 return -1; /* Unknown PCI mode */
1034
Ananda Rajuc92ca042006-04-21 19:18:03 -04001035 config->bus_speed = bus_speed[mode];
1036
1037 if (s2io_on_nec_bridge(nic->pdev)) {
1038 DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
1039 nic->dev->name);
1040 return mode;
1041 }
1042
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001043 if (val64 & PCI_MODE_32_BITS) {
1044 DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name);
1045 } else {
1046 DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name);
1047 }
1048
1049 switch(mode) {
1050 case PCI_MODE_PCI_33:
1051 DBG_PRINT(ERR_DBG, "33MHz PCI bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001052 break;
1053 case PCI_MODE_PCI_66:
1054 DBG_PRINT(ERR_DBG, "66MHz PCI bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001055 break;
1056 case PCI_MODE_PCIX_M1_66:
1057 DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001058 break;
1059 case PCI_MODE_PCIX_M1_100:
1060 DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001061 break;
1062 case PCI_MODE_PCIX_M1_133:
1063 DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001064 break;
1065 case PCI_MODE_PCIX_M2_66:
1066 DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001067 break;
1068 case PCI_MODE_PCIX_M2_100:
1069 DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001070 break;
1071 case PCI_MODE_PCIX_M2_133:
1072 DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001073 break;
1074 default:
1075 return -1; /* Unsupported bus speed */
1076 }
1077
1078 return mode;
1079}
1080
1081/**
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001082 * init_tti - Initialization transmit traffic interrupt scheme
1083 * @nic: device private variable
1084 * @link: link status (UP/DOWN) used to enable/disable continuous
1085 * transmit interrupts
1086 * Description: The function configures transmit traffic interrupts
1087 * Return Value: SUCCESS on success and
1088 * '-1' on failure
1089 */
1090
1091int init_tti(struct s2io_nic *nic, int link)
1092{
1093 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1094 register u64 val64 = 0;
1095 int i;
1096 struct config_param *config;
1097
1098 config = &nic->config;
1099
1100 for (i = 0; i < config->tx_fifo_num; i++) {
1101 /*
1102 * TTI Initialization. Default Tx timer gets us about
1103 * 250 interrupts per sec. Continuous interrupts are enabled
1104 * by default.
1105 */
1106 if (nic->device_type == XFRAME_II_DEVICE) {
1107 int count = (nic->config.bus_speed * 125)/2;
1108 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
1109 } else
1110 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1111
1112 val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
1113 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1114 TTI_DATA1_MEM_TX_URNG_C(0x30) |
1115 TTI_DATA1_MEM_TX_TIMER_AC_EN;
1116
1117 if (use_continuous_tx_intrs && (link == LINK_UP))
1118 val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
1119 writeq(val64, &bar0->tti_data1_mem);
1120
1121 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1122 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1123 TTI_DATA2_MEM_TX_UFC_C(0x40) |
1124 TTI_DATA2_MEM_TX_UFC_D(0x80);
1125
1126 writeq(val64, &bar0->tti_data2_mem);
1127
1128 val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD |
1129 TTI_CMD_MEM_OFFSET(i);
1130 writeq(val64, &bar0->tti_command_mem);
1131
1132 if (wait_for_cmd_complete(&bar0->tti_command_mem,
1133 TTI_CMD_MEM_STROBE_NEW_CMD, S2IO_BIT_RESET) != SUCCESS)
1134 return FAILURE;
1135 }
1136
1137 return SUCCESS;
1138}
1139
1140/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001141 * init_nic - Initialization of hardware
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001142 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001143 * Description: The function sequentially configures every block
1144 * of the H/W from their reset values.
1145 * Return Value: SUCCESS on success and
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 * '-1' on failure (endian settings incorrect).
1147 */
1148
1149static int init_nic(struct s2io_nic *nic)
1150{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001151 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 struct net_device *dev = nic->dev;
1153 register u64 val64 = 0;
1154 void __iomem *add;
1155 u32 time;
1156 int i, j;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001157 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 struct config_param *config;
Ananda Rajuc92ca042006-04-21 19:18:03 -04001159 int dtx_cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 unsigned long long mem_share;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001161 int mem_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162
1163 mac_control = &nic->mac_control;
1164 config = &nic->config;
1165
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001166 /* to set the swapper controle on the card */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001167 if(s2io_set_swapper(nic)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n");
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001169 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 }
1171
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001172 /*
1173 * Herc requires EOI to be removed from reset before XGXS, so..
1174 */
1175 if (nic->device_type & XFRAME_II_DEVICE) {
1176 val64 = 0xA500000000ULL;
1177 writeq(val64, &bar0->sw_reset);
1178 msleep(500);
1179 val64 = readq(&bar0->sw_reset);
1180 }
1181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182 /* Remove XGXS from reset state */
1183 val64 = 0;
1184 writeq(val64, &bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 msleep(500);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001186 val64 = readq(&bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187
Sreenivasa Honnur79620242007-12-05 23:59:28 -05001188 /* Ensure that it's safe to access registers by checking
1189 * RIC_RUNNING bit is reset. Check is valid only for XframeII.
1190 */
1191 if (nic->device_type == XFRAME_II_DEVICE) {
1192 for (i = 0; i < 50; i++) {
1193 val64 = readq(&bar0->adapter_status);
1194 if (!(val64 & ADAPTER_STATUS_RIC_RUNNING))
1195 break;
1196 msleep(10);
1197 }
1198 if (i == 50)
1199 return -ENODEV;
1200 }
1201
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 /* Enable Receiving broadcasts */
1203 add = &bar0->mac_cfg;
1204 val64 = readq(&bar0->mac_cfg);
1205 val64 |= MAC_RMAC_BCAST_ENABLE;
1206 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1207 writel((u32) val64, add);
1208 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1209 writel((u32) (val64 >> 32), (add + 4));
1210
1211 /* Read registers in all blocks */
1212 val64 = readq(&bar0->mac_int_mask);
1213 val64 = readq(&bar0->mc_int_mask);
1214 val64 = readq(&bar0->xgxs_int_mask);
1215
1216 /* Set MTU */
1217 val64 = dev->mtu;
1218 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
1219
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001220 if (nic->device_type & XFRAME_II_DEVICE) {
1221 while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07001222 SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 &bar0->dtx_control, UF);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001224 if (dtx_cnt & 0x1)
1225 msleep(1); /* Necessary!! */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 dtx_cnt++;
1227 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001228 } else {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001229 while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
1230 SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
1231 &bar0->dtx_control, UF);
1232 val64 = readq(&bar0->dtx_control);
1233 dtx_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234 }
1235 }
1236
1237 /* Tx DMA Initialization */
1238 val64 = 0;
1239 writeq(val64, &bar0->tx_fifo_partition_0);
1240 writeq(val64, &bar0->tx_fifo_partition_1);
1241 writeq(val64, &bar0->tx_fifo_partition_2);
1242 writeq(val64, &bar0->tx_fifo_partition_3);
1243
1244
1245 for (i = 0, j = 0; i < config->tx_fifo_num; i++) {
1246 val64 |=
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001247 vBIT(config->tx_cfg[i].fifo_len - 1, ((j * 32) + 19),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 13) | vBIT(config->tx_cfg[i].fifo_priority,
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001249 ((j * 32) + 5), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250
1251 if (i == (config->tx_fifo_num - 1)) {
1252 if (i % 2 == 0)
1253 i++;
1254 }
1255
1256 switch (i) {
1257 case 1:
1258 writeq(val64, &bar0->tx_fifo_partition_0);
1259 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001260 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 break;
1262 case 3:
1263 writeq(val64, &bar0->tx_fifo_partition_1);
1264 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001265 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266 break;
1267 case 5:
1268 writeq(val64, &bar0->tx_fifo_partition_2);
1269 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001270 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 break;
1272 case 7:
1273 writeq(val64, &bar0->tx_fifo_partition_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001274 val64 = 0;
1275 j = 0;
1276 break;
1277 default:
1278 j++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 break;
1280 }
1281 }
1282
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001283 /*
1284 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1285 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1286 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001287 if ((nic->device_type == XFRAME_I_DEVICE) &&
Auke Kok44c10132007-06-08 15:46:36 -07001288 (nic->pdev->revision < 4))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001289 writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
1290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291 val64 = readq(&bar0->tx_fifo_partition_0);
1292 DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n",
1293 &bar0->tx_fifo_partition_0, (unsigned long long) val64);
1294
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001295 /*
1296 * Initialization of Tx_PA_CONFIG register to ignore packet
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 * integrity checking.
1298 */
1299 val64 = readq(&bar0->tx_pa_cfg);
1300 val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI |
1301 TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR;
1302 writeq(val64, &bar0->tx_pa_cfg);
1303
1304 /* Rx DMA intialization. */
1305 val64 = 0;
1306 for (i = 0; i < config->rx_ring_num; i++) {
1307 val64 |=
1308 vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)),
1309 3);
1310 }
1311 writeq(val64, &bar0->rx_queue_priority);
1312
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001313 /*
1314 * Allocating equal share of memory to all the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315 * configured Rings.
1316 */
1317 val64 = 0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001318 if (nic->device_type & XFRAME_II_DEVICE)
1319 mem_size = 32;
1320 else
1321 mem_size = 64;
1322
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 for (i = 0; i < config->rx_ring_num; i++) {
1324 switch (i) {
1325 case 0:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001326 mem_share = (mem_size / config->rx_ring_num +
1327 mem_size % config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share);
1329 continue;
1330 case 1:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001331 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share);
1333 continue;
1334 case 2:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001335 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336 val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share);
1337 continue;
1338 case 3:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001339 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share);
1341 continue;
1342 case 4:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001343 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share);
1345 continue;
1346 case 5:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001347 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share);
1349 continue;
1350 case 6:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001351 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share);
1353 continue;
1354 case 7:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001355 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356 val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share);
1357 continue;
1358 }
1359 }
1360 writeq(val64, &bar0->rx_queue_cfg);
1361
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001362 /*
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001363 * Filling Tx round robin registers
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001364 * as per the number of FIFOs for equal scheduling priority
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001366 switch (config->tx_fifo_num) {
1367 case 1:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001368 val64 = 0x0;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001369 writeq(val64, &bar0->tx_w_round_robin_0);
1370 writeq(val64, &bar0->tx_w_round_robin_1);
1371 writeq(val64, &bar0->tx_w_round_robin_2);
1372 writeq(val64, &bar0->tx_w_round_robin_3);
1373 writeq(val64, &bar0->tx_w_round_robin_4);
1374 break;
1375 case 2:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001376 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001377 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001378 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001379 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001380 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001381 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001382 writeq(val64, &bar0->tx_w_round_robin_4);
1383 break;
1384 case 3:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001385 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001386 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001387 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001388 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001389 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001390 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001391 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001392 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001393 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001394 writeq(val64, &bar0->tx_w_round_robin_4);
1395 break;
1396 case 4:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001397 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001398 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001399 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001400 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001401 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001402 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001403 writeq(val64, &bar0->tx_w_round_robin_4);
1404 break;
1405 case 5:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001406 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001407 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001408 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001409 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001410 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001411 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001412 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001413 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001414 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001415 writeq(val64, &bar0->tx_w_round_robin_4);
1416 break;
1417 case 6:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001418 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001419 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001420 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001421 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001422 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001423 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001424 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001425 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001426 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001427 writeq(val64, &bar0->tx_w_round_robin_4);
1428 break;
1429 case 7:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001430 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001431 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001432 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001433 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001434 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001435 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001436 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001437 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001438 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001439 writeq(val64, &bar0->tx_w_round_robin_4);
1440 break;
1441 case 8:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001442 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001443 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001444 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001445 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001446 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001447 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001448 writeq(val64, &bar0->tx_w_round_robin_4);
1449 break;
1450 }
1451
Ananda Rajub41477f2006-07-24 19:52:49 -04001452 /* Enable all configured Tx FIFO partitions */
Ananda Raju5d3213c2006-04-21 19:23:26 -04001453 val64 = readq(&bar0->tx_fifo_partition_0);
1454 val64 |= (TX_FIFO_PARTITION_EN);
1455 writeq(val64, &bar0->tx_fifo_partition_0);
1456
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001457 /* Filling the Rx round robin registers as per the
1458 * number of Rings and steering based on QoS.
1459 */
1460 switch (config->rx_ring_num) {
1461 case 1:
1462 val64 = 0x8080808080808080ULL;
1463 writeq(val64, &bar0->rts_qos_steering);
1464 break;
1465 case 2:
1466 val64 = 0x0000010000010000ULL;
1467 writeq(val64, &bar0->rx_w_round_robin_0);
1468 val64 = 0x0100000100000100ULL;
1469 writeq(val64, &bar0->rx_w_round_robin_1);
1470 val64 = 0x0001000001000001ULL;
1471 writeq(val64, &bar0->rx_w_round_robin_2);
1472 val64 = 0x0000010000010000ULL;
1473 writeq(val64, &bar0->rx_w_round_robin_3);
1474 val64 = 0x0100000000000000ULL;
1475 writeq(val64, &bar0->rx_w_round_robin_4);
1476
1477 val64 = 0x8080808040404040ULL;
1478 writeq(val64, &bar0->rts_qos_steering);
1479 break;
1480 case 3:
1481 val64 = 0x0001000102000001ULL;
1482 writeq(val64, &bar0->rx_w_round_robin_0);
1483 val64 = 0x0001020000010001ULL;
1484 writeq(val64, &bar0->rx_w_round_robin_1);
1485 val64 = 0x0200000100010200ULL;
1486 writeq(val64, &bar0->rx_w_round_robin_2);
1487 val64 = 0x0001000102000001ULL;
1488 writeq(val64, &bar0->rx_w_round_robin_3);
1489 val64 = 0x0001020000000000ULL;
1490 writeq(val64, &bar0->rx_w_round_robin_4);
1491
1492 val64 = 0x8080804040402020ULL;
1493 writeq(val64, &bar0->rts_qos_steering);
1494 break;
1495 case 4:
1496 val64 = 0x0001020300010200ULL;
1497 writeq(val64, &bar0->rx_w_round_robin_0);
1498 val64 = 0x0100000102030001ULL;
1499 writeq(val64, &bar0->rx_w_round_robin_1);
1500 val64 = 0x0200010000010203ULL;
1501 writeq(val64, &bar0->rx_w_round_robin_2);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001502 val64 = 0x0001020001000001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001503 writeq(val64, &bar0->rx_w_round_robin_3);
1504 val64 = 0x0203000100000000ULL;
1505 writeq(val64, &bar0->rx_w_round_robin_4);
1506
1507 val64 = 0x8080404020201010ULL;
1508 writeq(val64, &bar0->rts_qos_steering);
1509 break;
1510 case 5:
1511 val64 = 0x0001000203000102ULL;
1512 writeq(val64, &bar0->rx_w_round_robin_0);
1513 val64 = 0x0001020001030004ULL;
1514 writeq(val64, &bar0->rx_w_round_robin_1);
1515 val64 = 0x0001000203000102ULL;
1516 writeq(val64, &bar0->rx_w_round_robin_2);
1517 val64 = 0x0001020001030004ULL;
1518 writeq(val64, &bar0->rx_w_round_robin_3);
1519 val64 = 0x0001000000000000ULL;
1520 writeq(val64, &bar0->rx_w_round_robin_4);
1521
1522 val64 = 0x8080404020201008ULL;
1523 writeq(val64, &bar0->rts_qos_steering);
1524 break;
1525 case 6:
1526 val64 = 0x0001020304000102ULL;
1527 writeq(val64, &bar0->rx_w_round_robin_0);
1528 val64 = 0x0304050001020001ULL;
1529 writeq(val64, &bar0->rx_w_round_robin_1);
1530 val64 = 0x0203000100000102ULL;
1531 writeq(val64, &bar0->rx_w_round_robin_2);
1532 val64 = 0x0304000102030405ULL;
1533 writeq(val64, &bar0->rx_w_round_robin_3);
1534 val64 = 0x0001000200000000ULL;
1535 writeq(val64, &bar0->rx_w_round_robin_4);
1536
1537 val64 = 0x8080404020100804ULL;
1538 writeq(val64, &bar0->rts_qos_steering);
1539 break;
1540 case 7:
1541 val64 = 0x0001020001020300ULL;
1542 writeq(val64, &bar0->rx_w_round_robin_0);
1543 val64 = 0x0102030400010203ULL;
1544 writeq(val64, &bar0->rx_w_round_robin_1);
1545 val64 = 0x0405060001020001ULL;
1546 writeq(val64, &bar0->rx_w_round_robin_2);
1547 val64 = 0x0304050000010200ULL;
1548 writeq(val64, &bar0->rx_w_round_robin_3);
1549 val64 = 0x0102030000000000ULL;
1550 writeq(val64, &bar0->rx_w_round_robin_4);
1551
1552 val64 = 0x8080402010080402ULL;
1553 writeq(val64, &bar0->rts_qos_steering);
1554 break;
1555 case 8:
1556 val64 = 0x0001020300040105ULL;
1557 writeq(val64, &bar0->rx_w_round_robin_0);
1558 val64 = 0x0200030106000204ULL;
1559 writeq(val64, &bar0->rx_w_round_robin_1);
1560 val64 = 0x0103000502010007ULL;
1561 writeq(val64, &bar0->rx_w_round_robin_2);
1562 val64 = 0x0304010002060500ULL;
1563 writeq(val64, &bar0->rx_w_round_robin_3);
1564 val64 = 0x0103020400000000ULL;
1565 writeq(val64, &bar0->rx_w_round_robin_4);
1566
1567 val64 = 0x8040201008040201ULL;
1568 writeq(val64, &bar0->rts_qos_steering);
1569 break;
1570 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571
1572 /* UDP Fix */
1573 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001574 for (i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575 writeq(val64, &bar0->rts_frm_len_n[i]);
1576
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001577 /* Set the default rts frame length for the rings configured */
1578 val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22);
1579 for (i = 0 ; i < config->rx_ring_num ; i++)
1580 writeq(val64, &bar0->rts_frm_len_n[i]);
1581
1582 /* Set the frame length for the configured rings
1583 * desired by the user
1584 */
1585 for (i = 0; i < config->rx_ring_num; i++) {
1586 /* If rts_frm_len[i] == 0 then it is assumed that user not
1587 * specified frame length steering.
1588 * If the user provides the frame length then program
1589 * the rts_frm_len register for those values or else
1590 * leave it as it is.
1591 */
1592 if (rts_frm_len[i] != 0) {
1593 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]),
1594 &bar0->rts_frm_len_n[i]);
1595 }
1596 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001597
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001598 /* Disable differentiated services steering logic */
1599 for (i = 0; i < 64; i++) {
1600 if (rts_ds_steer(nic, i, 0) == FAILURE) {
1601 DBG_PRINT(ERR_DBG, "%s: failed rts ds steering",
1602 dev->name);
1603 DBG_PRINT(ERR_DBG, "set on codepoint %d\n", i);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001604 return -ENODEV;
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001605 }
1606 }
1607
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001608 /* Program statistics memory */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001611 if (nic->device_type == XFRAME_II_DEVICE) {
1612 val64 = STAT_BC(0x320);
1613 writeq(val64, &bar0->stat_byte_cnt);
1614 }
1615
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001616 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617 * Initializing the sampling rate for the device to calculate the
1618 * bandwidth utilization.
1619 */
1620 val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) |
1621 MAC_RX_LINK_UTIL_VAL(rmac_util_period);
1622 writeq(val64, &bar0->mac_link_util);
1623
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001624 /*
1625 * Initializing the Transmit and Receive Traffic Interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626 * Scheme.
1627 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001628
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001629 /* Initialize TTI */
1630 if (SUCCESS != init_tti(nic, nic->last_link_state))
1631 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001632
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001633 /* RTI Initialization */
1634 if (nic->device_type == XFRAME_II_DEVICE) {
1635 /*
1636 * Programmed to generate Apprx 500 Intrs per
1637 * second
1638 */
1639 int count = (nic->config.bus_speed * 125)/4;
1640 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
1641 } else
1642 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1643 val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
1644 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1645 RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN;
1646
1647 writeq(val64, &bar0->rti_data1_mem);
1648
1649 val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
1650 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1651 if (nic->config.intr_type == MSI_X)
1652 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \
1653 RTI_DATA2_MEM_RX_UFC_D(0x40));
1654 else
1655 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \
1656 RTI_DATA2_MEM_RX_UFC_D(0x80));
1657 writeq(val64, &bar0->rti_data2_mem);
1658
1659 for (i = 0; i < config->rx_ring_num; i++) {
1660 val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD
1661 | RTI_CMD_MEM_OFFSET(i);
1662 writeq(val64, &bar0->rti_command_mem);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001663
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001664 /*
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001665 * Once the operation completes, the Strobe bit of the
1666 * command register will be reset. We poll for this
1667 * particular condition. We wait for a maximum of 500ms
1668 * for the operation to complete, if it's not complete
1669 * by then we return error.
1670 */
1671 time = 0;
1672 while (TRUE) {
1673 val64 = readq(&bar0->rti_command_mem);
1674 if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD))
1675 break;
1676
1677 if (time > 10) {
1678 DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n",
1679 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001680 return -ENODEV;
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -07001681 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001682 time++;
1683 msleep(50);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685 }
1686
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001687 /*
1688 * Initializing proper values as Pause threshold into all
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689 * the 8 Queues on Rx side.
1690 */
1691 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3);
1692 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
1693
1694 /* Disable RMAC PAD STRIPPING */
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01001695 add = &bar0->mac_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696 val64 = readq(&bar0->mac_cfg);
1697 val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
1698 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1699 writel((u32) (val64), add);
1700 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1701 writel((u32) (val64 >> 32), (add + 4));
1702 val64 = readq(&bar0->mac_cfg);
1703
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05001704 /* Enable FCS stripping by adapter */
1705 add = &bar0->mac_cfg;
1706 val64 = readq(&bar0->mac_cfg);
1707 val64 |= MAC_CFG_RMAC_STRIP_FCS;
1708 if (nic->device_type == XFRAME_II_DEVICE)
1709 writeq(val64, &bar0->mac_cfg);
1710 else {
1711 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1712 writel((u32) (val64), add);
1713 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1714 writel((u32) (val64 >> 32), (add + 4));
1715 }
1716
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001717 /*
1718 * Set the time value to be inserted in the pause frame
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 * generated by xena.
1720 */
1721 val64 = readq(&bar0->rmac_pause_cfg);
1722 val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1723 val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time);
1724 writeq(val64, &bar0->rmac_pause_cfg);
1725
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001726 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 * Set the Threshold Limit for Generating the pause frame
1728 * If the amount of data in any Queue exceeds ratio of
1729 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1730 * pause frame is generated
1731 */
1732 val64 = 0;
1733 for (i = 0; i < 4; i++) {
1734 val64 |=
1735 (((u64) 0xFF00 | nic->mac_control.
1736 mc_pause_threshold_q0q3)
1737 << (i * 2 * 8));
1738 }
1739 writeq(val64, &bar0->mc_pause_thresh_q0q3);
1740
1741 val64 = 0;
1742 for (i = 0; i < 4; i++) {
1743 val64 |=
1744 (((u64) 0xFF00 | nic->mac_control.
1745 mc_pause_threshold_q4q7)
1746 << (i * 2 * 8));
1747 }
1748 writeq(val64, &bar0->mc_pause_thresh_q4q7);
1749
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001750 /*
1751 * TxDMA will stop Read request if the number of read split has
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 * exceeded the limit pointed by shared_splits
1753 */
1754 val64 = readq(&bar0->pic_control);
1755 val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
1756 writeq(val64, &bar0->pic_control);
1757
Ananda Raju863c11a2006-04-21 19:03:13 -04001758 if (nic->config.bus_speed == 266) {
1759 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
1760 writeq(0x0, &bar0->read_retry_delay);
1761 writeq(0x0, &bar0->write_retry_delay);
1762 }
1763
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001764 /*
1765 * Programming the Herc to split every write transaction
1766 * that does not start on an ADB to reduce disconnects.
1767 */
1768 if (nic->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05001769 val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
1770 MISC_LINK_STABILITY_PRD(3);
Ananda Raju863c11a2006-04-21 19:03:13 -04001771 writeq(val64, &bar0->misc_control);
1772 val64 = readq(&bar0->pic_control2);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07001773 val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15));
Ananda Raju863c11a2006-04-21 19:03:13 -04001774 writeq(val64, &bar0->pic_control2);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001775 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001776 if (strstr(nic->product_name, "CX4")) {
1777 val64 = TMAC_AVG_IPG(0x17);
1778 writeq(val64, &bar0->tmac_avg_ipg);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001779 }
1780
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 return SUCCESS;
1782}
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001783#define LINK_UP_DOWN_INTERRUPT 1
1784#define MAC_RMAC_ERR_TIMER 2
1785
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001786static int s2io_link_fault_indication(struct s2io_nic *nic)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001787{
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07001788 if (nic->config.intr_type != INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04001789 return MAC_RMAC_ERR_TIMER;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001790 if (nic->device_type == XFRAME_II_DEVICE)
1791 return LINK_UP_DOWN_INTERRUPT;
1792 else
1793 return MAC_RMAC_ERR_TIMER;
1794}
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07001795
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001796/**
1797 * do_s2io_write_bits - update alarm bits in alarm register
1798 * @value: alarm bits
1799 * @flag: interrupt status
1800 * @addr: address value
1801 * Description: update alarm bits in alarm register
1802 * Return Value:
1803 * NONE.
1804 */
1805static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr)
1806{
1807 u64 temp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001809 temp64 = readq(addr);
1810
1811 if(flag == ENABLE_INTRS)
1812 temp64 &= ~((u64) value);
1813 else
1814 temp64 |= ((u64) value);
1815 writeq(temp64, addr);
1816}
1817
Stephen Hemminger43b7c452007-10-05 12:39:21 -07001818static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001819{
1820 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1821 register u64 gen_int_mask = 0;
1822
1823 if (mask & TX_DMA_INTR) {
1824
1825 gen_int_mask |= TXDMA_INT_M;
1826
1827 do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT |
1828 TXDMA_PCC_INT | TXDMA_TTI_INT |
1829 TXDMA_LSO_INT | TXDMA_TPA_INT |
1830 TXDMA_SM_INT, flag, &bar0->txdma_int_mask);
1831
1832 do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
1833 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
1834 PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag,
1835 &bar0->pfc_err_mask);
1836
1837 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
1838 TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR |
1839 TDA_PCIX_ERR, flag, &bar0->tda_err_mask);
1840
1841 do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR |
1842 PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
1843 PCC_N_SERR | PCC_6_COF_OV_ERR |
1844 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
1845 PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR |
1846 PCC_TXB_ECC_SG_ERR, flag, &bar0->pcc_err_mask);
1847
1848 do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR |
1849 TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask);
1850
1851 do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT |
1852 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM |
1853 LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
1854 flag, &bar0->lso_err_mask);
1855
1856 do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP,
1857 flag, &bar0->tpa_err_mask);
1858
1859 do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask);
1860
1861 }
1862
1863 if (mask & TX_MAC_INTR) {
1864 gen_int_mask |= TXMAC_INT_M;
1865 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag,
1866 &bar0->mac_int_mask);
1867 do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR |
1868 TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
1869 TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
1870 flag, &bar0->mac_tmac_err_mask);
1871 }
1872
1873 if (mask & TX_XGXS_INTR) {
1874 gen_int_mask |= TXXGXS_INT_M;
1875 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag,
1876 &bar0->xgxs_int_mask);
1877 do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR |
1878 TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
1879 flag, &bar0->xgxs_txgxs_err_mask);
1880 }
1881
1882 if (mask & RX_DMA_INTR) {
1883 gen_int_mask |= RXDMA_INT_M;
1884 do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M |
1885 RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M,
1886 flag, &bar0->rxdma_int_mask);
1887 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR |
1888 RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM |
1889 RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR |
1890 RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask);
1891 do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn |
1892 PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn |
1893 PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag,
1894 &bar0->prc_pcix_err_mask);
1895 do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR |
1896 RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag,
1897 &bar0->rpa_err_mask);
1898 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR |
1899 RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM |
1900 RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR |
1901 RDA_FRM_ECC_SG_ERR | RDA_MISC_ERR|RDA_PCIX_ERR,
1902 flag, &bar0->rda_err_mask);
1903 do_s2io_write_bits(RTI_SM_ERR_ALARM |
1904 RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
1905 flag, &bar0->rti_err_mask);
1906 }
1907
1908 if (mask & RX_MAC_INTR) {
1909 gen_int_mask |= RXMAC_INT_M;
1910 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
1911 &bar0->mac_int_mask);
1912 do_s2io_write_bits(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
1913 RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
1914 RMAC_DOUBLE_ECC_ERR |
1915 RMAC_LINK_STATE_CHANGE_INT,
1916 flag, &bar0->mac_rmac_err_mask);
1917 }
1918
1919 if (mask & RX_XGXS_INTR)
1920 {
1921 gen_int_mask |= RXXGXS_INT_M;
1922 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag,
1923 &bar0->xgxs_int_mask);
1924 do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag,
1925 &bar0->xgxs_rxgxs_err_mask);
1926 }
1927
1928 if (mask & MC_INTR) {
1929 gen_int_mask |= MC_INT_M;
1930 do_s2io_write_bits(MC_INT_MASK_MC_INT, flag, &bar0->mc_int_mask);
1931 do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG |
1932 MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag,
1933 &bar0->mc_err_mask);
1934 }
1935 nic->general_int_mask = gen_int_mask;
1936
1937 /* Remove this line when alarm interrupts are enabled */
1938 nic->general_int_mask = 0;
1939}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001940/**
1941 * en_dis_able_nic_intrs - Enable or Disable the interrupts
Linus Torvalds1da177e2005-04-16 15:20:36 -07001942 * @nic: device private variable,
1943 * @mask: A mask indicating which Intr block must be modified and,
1944 * @flag: A flag indicating whether to enable or disable the Intrs.
1945 * Description: This function will either disable or enable the interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001946 * depending on the flag argument. The mask argument can be used to
1947 * enable/disable any Intr block.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001948 * Return Value: NONE.
1949 */
1950
1951static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
1952{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001953 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001954 register u64 temp64 = 0, intr_mask = 0;
1955
1956 intr_mask = nic->general_int_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957
1958 /* Top level interrupt classification */
1959 /* PIC Interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001960 if (mask & TX_PIC_INTR) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 /* Enable PIC Intrs in the general intr mask register */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001962 intr_mask |= TXPIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001964 /*
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001965 * If Hercules adapter enable GPIO otherwise
Ananda Rajub41477f2006-07-24 19:52:49 -04001966 * disable all PCIX, Flash, MDIO, IIC and GPIO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001967 * interrupts for now.
1968 * TODO
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001970 if (s2io_link_fault_indication(nic) ==
1971 LINK_UP_DOWN_INTERRUPT ) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001972 do_s2io_write_bits(PIC_INT_GPIO, flag,
1973 &bar0->pic_int_mask);
1974 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag,
1975 &bar0->gpio_int_mask);
1976 } else
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001977 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001978 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001979 /*
1980 * Disable PIC Intrs in the general
1981 * intr mask register
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982 */
1983 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 }
1985 }
1986
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987 /* Tx traffic interrupts */
1988 if (mask & TX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001989 intr_mask |= TXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001990 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001991 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 * Enable all the Tx side interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001993 * writing 0 Enables all 64 TX interrupt levels
Linus Torvalds1da177e2005-04-16 15:20:36 -07001994 */
1995 writeq(0x0, &bar0->tx_traffic_mask);
1996 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001997 /*
1998 * Disable Tx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999 * register.
2000 */
2001 writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 }
2003 }
2004
2005 /* Rx traffic interrupts */
2006 if (mask & RX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002007 intr_mask |= RXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002008 if (flag == ENABLE_INTRS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 /* writing 0 Enables all 8 RX interrupt levels */
2010 writeq(0x0, &bar0->rx_traffic_mask);
2011 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002012 /*
2013 * Disable Rx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 * register.
2015 */
2016 writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017 }
2018 }
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002019
2020 temp64 = readq(&bar0->general_int_mask);
2021 if (flag == ENABLE_INTRS)
2022 temp64 &= ~((u64) intr_mask);
2023 else
2024 temp64 = DISABLE_ALL_INTRS;
2025 writeq(temp64, &bar0->general_int_mask);
2026
2027 nic->general_int_mask = readq(&bar0->general_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028}
2029
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002030/**
2031 * verify_pcc_quiescent- Checks for PCC quiescent state
2032 * Return: 1 If PCC is quiescence
2033 * 0 If PCC is not quiescence
2034 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002035static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002036{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002037 int ret = 0, herc;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002038 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002039 u64 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002040
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002041 herc = (sp->device_type == XFRAME_II_DEVICE);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002042
2043 if (flag == FALSE) {
Auke Kok44c10132007-06-08 15:46:36 -07002044 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002045 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002046 ret = 1;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002047 } else {
2048 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002049 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002050 }
2051 } else {
Auke Kok44c10132007-06-08 15:46:36 -07002052 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002053 if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002054 ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002055 ret = 1;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002056 } else {
2057 if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002058 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002059 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002060 }
2061 }
2062
2063 return ret;
2064}
2065/**
2066 * verify_xena_quiescence - Checks whether the H/W is ready
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067 * Description: Returns whether the H/W is ready to go or not. Depending
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002068 * on whether adapter enable bit was written or not the comparison
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 * differs and the calling function passes the input argument flag to
2070 * indicate this.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002071 * Return: 1 If xena is quiescence
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 * 0 If Xena is not quiescence
2073 */
2074
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002075static int verify_xena_quiescence(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002077 int mode;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002078 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002079 u64 val64 = readq(&bar0->adapter_status);
2080 mode = s2io_verify_pci_mode(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002082 if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
2083 DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!");
2084 return 0;
2085 }
2086 if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
2087 DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!");
2088 return 0;
2089 }
2090 if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
2091 DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!");
2092 return 0;
2093 }
2094 if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
2095 DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!");
2096 return 0;
2097 }
2098 if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
2099 DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!");
2100 return 0;
2101 }
2102 if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
2103 DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!");
2104 return 0;
2105 }
2106 if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
2107 DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!");
2108 return 0;
2109 }
2110 if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
2111 DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!");
2112 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113 }
2114
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002115 /*
2116 * In PCI 33 mode, the P_PLL is not used, and therefore,
2117 * the the P_PLL_LOCK bit in the adapter_status register will
2118 * not be asserted.
2119 */
2120 if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
2121 sp->device_type == XFRAME_II_DEVICE && mode !=
2122 PCI_MODE_PCI_33) {
2123 DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!");
2124 return 0;
2125 }
2126 if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
2127 ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
2128 DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!");
2129 return 0;
2130 }
2131 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132}
2133
2134/**
2135 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2136 * @sp: Pointer to device specifc structure
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002137 * Description :
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138 * New procedure to clear mac address reading problems on Alpha platforms
2139 *
2140 */
2141
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002142static void fix_mac_address(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002144 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145 u64 val64;
2146 int i = 0;
2147
2148 while (fix_mac[i] != END_SIGN) {
2149 writeq(fix_mac[i++], &bar0->gpio_control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002150 udelay(10);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 val64 = readq(&bar0->gpio_control);
2152 }
2153}
2154
2155/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002156 * start_nic - Turns the device on
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002158 * Description:
2159 * This function actually turns the device on. Before this function is
2160 * called,all Registers are configured from their reset states
2161 * and shared memory is allocated but the NIC is still quiescent. On
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162 * calling this function, the device interrupts are cleared and the NIC is
2163 * literally switched on by writing into the adapter control register.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002164 * Return Value:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165 * SUCCESS on success and -1 on failure.
2166 */
2167
2168static int start_nic(struct s2io_nic *nic)
2169{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002170 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 struct net_device *dev = nic->dev;
2172 register u64 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002173 u16 subid, i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002174 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 struct config_param *config;
2176
2177 mac_control = &nic->mac_control;
2178 config = &nic->config;
2179
2180 /* PRC Initialization and configuration */
2181 for (i = 0; i < config->rx_ring_num; i++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002182 writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 &bar0->prc_rxd0_n[i]);
2184
2185 val64 = readq(&bar0->prc_ctrl_n[i]);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002186 if (nic->rxd_mode == RXD_MODE_1)
2187 val64 |= PRC_CTRL_RC_ENABLED;
2188 else
2189 val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
Ananda Raju863c11a2006-04-21 19:03:13 -04002190 if (nic->device_type == XFRAME_II_DEVICE)
2191 val64 |= PRC_CTRL_GROUP_READS;
2192 val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
2193 val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 writeq(val64, &bar0->prc_ctrl_n[i]);
2195 }
2196
Ananda Rajuda6971d2005-10-31 16:55:31 -05002197 if (nic->rxd_mode == RXD_MODE_3B) {
2198 /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
2199 val64 = readq(&bar0->rx_pa_cfg);
2200 val64 |= RX_PA_CFG_IGNORE_L2_ERR;
2201 writeq(val64, &bar0->rx_pa_cfg);
2202 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002204 if (vlan_tag_strip == 0) {
2205 val64 = readq(&bar0->rx_pa_cfg);
2206 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
2207 writeq(val64, &bar0->rx_pa_cfg);
2208 vlan_strip_flag = 0;
2209 }
2210
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002211 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212 * Enabling MC-RLDRAM. After enabling the device, we timeout
2213 * for around 100ms, which is approximately the time required
2214 * for the device to be ready for operation.
2215 */
2216 val64 = readq(&bar0->mc_rldram_mrs);
2217 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE;
2218 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
2219 val64 = readq(&bar0->mc_rldram_mrs);
2220
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002221 msleep(100); /* Delay by around 100 ms. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222
2223 /* Enabling ECC Protection. */
2224 val64 = readq(&bar0->adapter_control);
2225 val64 &= ~ADAPTER_ECC_EN;
2226 writeq(val64, &bar0->adapter_control);
2227
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002228 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002229 * Verify if the device is ready to be enabled, if so enable
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230 * it.
2231 */
2232 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002233 if (!verify_xena_quiescence(nic)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name);
2235 DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n",
2236 (unsigned long long) val64);
2237 return FAILURE;
2238 }
2239
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002240 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 * With some switches, link might be already up at this point.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002242 * Because of this weird behavior, when we enable laser,
2243 * we may not get link. We need to handle this. We cannot
2244 * figure out which switch is misbehaving. So we are forced to
2245 * make a global change.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246 */
2247
2248 /* Enabling Laser. */
2249 val64 = readq(&bar0->adapter_control);
2250 val64 |= ADAPTER_EOI_TX_ON;
2251 writeq(val64, &bar0->adapter_control);
2252
Ananda Rajuc92ca042006-04-21 19:18:03 -04002253 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
2254 /*
2255 * Dont see link state interrupts initally on some switches,
2256 * so directly scheduling the link state task here.
2257 */
2258 schedule_work(&nic->set_link_task);
2259 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260 /* SXE-002: Initialize link and activity LED */
2261 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07002262 if (((subid & 0xFF) >= 0x07) &&
2263 (nic->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264 val64 = readq(&bar0->gpio_control);
2265 val64 |= 0x0000800000000000ULL;
2266 writeq(val64, &bar0->gpio_control);
2267 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01002268 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269 }
2270
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 return SUCCESS;
2272}
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002273/**
2274 * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
2275 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002276static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, struct \
2277 TxD *txdlp, int get_off)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002278{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002279 struct s2io_nic *nic = fifo_data->nic;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002280 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002281 struct TxD *txds;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002282 u16 j, frg_cnt;
2283
2284 txds = txdlp;
Surjit Reang2fda0962008-01-24 02:08:59 -08002285 if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002286 pci_unmap_single(nic->pdev, (dma_addr_t)
2287 txds->Buffer_Pointer, sizeof(u64),
2288 PCI_DMA_TODEVICE);
2289 txds++;
2290 }
2291
2292 skb = (struct sk_buff *) ((unsigned long)
2293 txds->Host_Control);
2294 if (!skb) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002295 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002296 return NULL;
2297 }
2298 pci_unmap_single(nic->pdev, (dma_addr_t)
2299 txds->Buffer_Pointer,
2300 skb->len - skb->data_len,
2301 PCI_DMA_TODEVICE);
2302 frg_cnt = skb_shinfo(skb)->nr_frags;
2303 if (frg_cnt) {
2304 txds++;
2305 for (j = 0; j < frg_cnt; j++, txds++) {
2306 skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
2307 if (!txds->Buffer_Pointer)
2308 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002309 pci_unmap_page(nic->pdev, (dma_addr_t)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002310 txds->Buffer_Pointer,
2311 frag->size, PCI_DMA_TODEVICE);
2312 }
2313 }
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002314 memset(txdlp,0, (sizeof(struct TxD) * fifo_data->max_txds));
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002315 return(skb);
2316}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002317
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002318/**
2319 * free_tx_buffers - Free all queued Tx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002321 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322 * Free all queued Tx buffers.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002323 * Return Value: void
Linus Torvalds1da177e2005-04-16 15:20:36 -07002324*/
2325
2326static void free_tx_buffers(struct s2io_nic *nic)
2327{
2328 struct net_device *dev = nic->dev;
2329 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002330 struct TxD *txdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331 int i, j;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002332 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002333 struct config_param *config;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002334 int cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335
2336 mac_control = &nic->mac_control;
2337 config = &nic->config;
2338
2339 for (i = 0; i < config->tx_fifo_num; i++) {
Surjit Reang2fda0962008-01-24 02:08:59 -08002340 unsigned long flags;
2341 spin_lock_irqsave(&mac_control->fifos[i].tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342 for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002343 txdp = (struct TxD *) \
2344 mac_control->fifos[i].list_info[j].list_virt_addr;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002345 skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
2346 if (skb) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002347 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002348 += skb->truesize;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002349 dev_kfree_skb(skb);
2350 cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002352 }
2353 DBG_PRINT(INTR_DBG,
2354 "%s:forcibly freeing %d skbs on FIFO%d\n",
2355 dev->name, cnt, i);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002356 mac_control->fifos[i].tx_curr_get_info.offset = 0;
2357 mac_control->fifos[i].tx_curr_put_info.offset = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08002358 spin_unlock_irqrestore(&mac_control->fifos[i].tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002359 }
2360}
2361
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002362/**
2363 * stop_nic - To stop the nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364 * @nic ; device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002365 * Description:
2366 * This function does exactly the opposite of what the start_nic()
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367 * function does. This function is called to stop the device.
2368 * Return Value:
2369 * void.
2370 */
2371
2372static void stop_nic(struct s2io_nic *nic)
2373{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002374 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002375 register u64 val64 = 0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04002376 u16 interruptible;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002377 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002378 struct config_param *config;
2379
2380 mac_control = &nic->mac_control;
2381 config = &nic->config;
2382
2383 /* Disable all interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002384 en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS);
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07002385 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002386 interruptible |= TX_PIC_INTR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002387 en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
2388
Ananda Raju5d3213c2006-04-21 19:23:26 -04002389 /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
2390 val64 = readq(&bar0->adapter_control);
2391 val64 &= ~(ADAPTER_CNTL_EN);
2392 writeq(val64, &bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393}
2394
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002395/**
2396 * fill_rx_buffers - Allocates the Rx side skbs
Linus Torvalds1da177e2005-04-16 15:20:36 -07002397 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002398 * @ring_no: ring number
2399 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400 * The function allocates Rx side skbs and puts the physical
2401 * address of these buffers into the RxD buffer pointers, so that the NIC
2402 * can DMA the received frame into these locations.
2403 * The NIC supports 3 receive modes, viz
2404 * 1. single buffer,
2405 * 2. three buffer and
2406 * 3. Five buffer modes.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002407 * Each mode defines how many fragments the received frame will be split
2408 * up into by the NIC. The frame is split into L3 header, L4 Header,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002409 * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself
2410 * is split into 3 fragments. As of now only single buffer mode is
2411 * supported.
2412 * Return Value:
2413 * SUCCESS on success or an appropriate -ve value on failure.
2414 */
2415
Adrian Bunkac1f60d2005-11-06 01:46:47 +01002416static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417{
2418 struct net_device *dev = nic->dev;
2419 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002420 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421 int off, off1, size, block_no, block_no1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002422 u32 alloc_tab = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002423 u32 alloc_cnt;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002424 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002425 struct config_param *config;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002426 u64 tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002427 struct buffAdd *ba;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428 unsigned long flags;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002429 struct RxD_t *first_rxdp = NULL;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002430 u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
Veena Parat6d517a22007-07-23 02:20:51 -04002431 struct RxD1 *rxdp1;
2432 struct RxD3 *rxdp3;
Veena Parat491abf22007-07-23 02:37:14 -04002433 struct swStat *stats = &nic->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434
2435 mac_control = &nic->mac_control;
2436 config = &nic->config;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002437 alloc_cnt = mac_control->rings[ring_no].pkt_cnt -
2438 atomic_read(&nic->rx_bufs_left[ring_no]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002439
Ananda Raju5d3213c2006-04-21 19:23:26 -04002440 block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index;
Ananda Raju863c11a2006-04-21 19:03:13 -04002441 off1 = mac_control->rings[ring_no].rx_curr_get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002442 while (alloc_tab < alloc_cnt) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002443 block_no = mac_control->rings[ring_no].rx_curr_put_info.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002444 block_index;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002445 off = mac_control->rings[ring_no].rx_curr_put_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446
Ananda Rajuda6971d2005-10-31 16:55:31 -05002447 rxdp = mac_control->rings[ring_no].
2448 rx_blocks[block_no].rxds[off].virt_addr;
2449
2450 if ((block_no == block_no1) && (off == off1) &&
2451 (rxdp->Host_Control)) {
2452 DBG_PRINT(INTR_DBG, "%s: Get and Put",
2453 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002454 DBG_PRINT(INTR_DBG, " info equated\n");
2455 goto end;
2456 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002457 if (off && (off == rxd_count[nic->rxd_mode])) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002458 mac_control->rings[ring_no].rx_curr_put_info.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002459 block_index++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002460 if (mac_control->rings[ring_no].rx_curr_put_info.
2461 block_index == mac_control->rings[ring_no].
2462 block_count)
2463 mac_control->rings[ring_no].rx_curr_put_info.
2464 block_index = 0;
2465 block_no = mac_control->rings[ring_no].
2466 rx_curr_put_info.block_index;
2467 if (off == rxd_count[nic->rxd_mode])
2468 off = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002469 mac_control->rings[ring_no].rx_curr_put_info.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002470 offset = off;
2471 rxdp = mac_control->rings[ring_no].
2472 rx_blocks[block_no].block_virt_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002473 DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
2474 dev->name, rxdp);
2475 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002476 if(!napi) {
2477 spin_lock_irqsave(&nic->put_lock, flags);
2478 mac_control->rings[ring_no].put_pos =
2479 (block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
2480 spin_unlock_irqrestore(&nic->put_lock, flags);
2481 } else {
2482 mac_control->rings[ring_no].put_pos =
2483 (block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
2484 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002485 if ((rxdp->Control_1 & RXD_OWN_XENA) &&
Veena Parat6d517a22007-07-23 02:20:51 -04002486 ((nic->rxd_mode == RXD_MODE_3B) &&
Jiri Slabyb7b5a122007-10-18 23:40:29 -07002487 (rxdp->Control_2 & s2BIT(0)))) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002488 mac_control->rings[ring_no].rx_curr_put_info.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002489 offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002490 goto end;
2491 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002492 /* calculate size of skb based on ring mode */
2493 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
2494 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
2495 if (nic->rxd_mode == RXD_MODE_1)
2496 size += NET_IP_ALIGN;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002497 else
Veena Parat6d517a22007-07-23 02:20:51 -04002498 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002499
Ananda Rajuda6971d2005-10-31 16:55:31 -05002500 /* allocate skb */
2501 skb = dev_alloc_skb(size);
2502 if(!skb) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08002503 DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name);
2504 DBG_PRINT(INFO_DBG, "memory to allocate SKBs\n");
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002505 if (first_rxdp) {
2506 wmb();
2507 first_rxdp->Control_1 |= RXD_OWN_XENA;
2508 }
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04002509 nic->mac_control.stats_info->sw_stat. \
2510 mem_alloc_fail_cnt++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002511 return -ENOMEM ;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002513 nic->mac_control.stats_info->sw_stat.mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002514 += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002515 if (nic->rxd_mode == RXD_MODE_1) {
2516 /* 1 buffer mode - normal operation mode */
Veena Parat6d517a22007-07-23 02:20:51 -04002517 rxdp1 = (struct RxD1*)rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002518 memset(rxdp, 0, sizeof(struct RxD1));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002519 skb_reserve(skb, NET_IP_ALIGN);
Veena Parat6d517a22007-07-23 02:20:51 -04002520 rxdp1->Buffer0_ptr = pci_map_single
Ananda Raju863c11a2006-04-21 19:03:13 -04002521 (nic->pdev, skb->data, size - NET_IP_ALIGN,
2522 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002523 if( (rxdp1->Buffer0_ptr == 0) ||
2524 (rxdp1->Buffer0_ptr ==
2525 DMA_ERROR_CODE))
2526 goto pci_map_failed;
2527
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002528 rxdp->Control_2 =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002529 SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002530
Veena Parat6d517a22007-07-23 02:20:51 -04002531 } else if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002532 /*
Veena Parat6d517a22007-07-23 02:20:51 -04002533 * 2 buffer mode -
2534 * 2 buffer mode provides 128
Ananda Rajuda6971d2005-10-31 16:55:31 -05002535 * byte aligned receive buffers.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002536 */
2537
Veena Parat6d517a22007-07-23 02:20:51 -04002538 rxdp3 = (struct RxD3*)rxdp;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002539 /* save buffer pointers to avoid frequent dma mapping */
Veena Parat6d517a22007-07-23 02:20:51 -04002540 Buffer0_ptr = rxdp3->Buffer0_ptr;
2541 Buffer1_ptr = rxdp3->Buffer1_ptr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002542 memset(rxdp, 0, sizeof(struct RxD3));
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002543 /* restore the buffer pointers for dma sync*/
Veena Parat6d517a22007-07-23 02:20:51 -04002544 rxdp3->Buffer0_ptr = Buffer0_ptr;
2545 rxdp3->Buffer1_ptr = Buffer1_ptr;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002546
Ananda Rajuda6971d2005-10-31 16:55:31 -05002547 ba = &mac_control->rings[ring_no].ba[block_no][off];
2548 skb_reserve(skb, BUF0_LEN);
2549 tmp = (u64)(unsigned long) skb->data;
2550 tmp += ALIGN_SIZE;
2551 tmp &= ~ALIGN_SIZE;
2552 skb->data = (void *) (unsigned long)tmp;
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -07002553 skb_reset_tail_pointer(skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002554
Veena Parat6d517a22007-07-23 02:20:51 -04002555 if (!(rxdp3->Buffer0_ptr))
2556 rxdp3->Buffer0_ptr =
Ananda Raju75c30b12006-07-24 19:55:09 -04002557 pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
Ananda Rajuda6971d2005-10-31 16:55:31 -05002558 PCI_DMA_FROMDEVICE);
Ananda Raju75c30b12006-07-24 19:55:09 -04002559 else
2560 pci_dma_sync_single_for_device(nic->pdev,
Veena Parat6d517a22007-07-23 02:20:51 -04002561 (dma_addr_t) rxdp3->Buffer0_ptr,
Ananda Raju75c30b12006-07-24 19:55:09 -04002562 BUF0_LEN, PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002563 if( (rxdp3->Buffer0_ptr == 0) ||
2564 (rxdp3->Buffer0_ptr == DMA_ERROR_CODE))
2565 goto pci_map_failed;
2566
Ananda Rajuda6971d2005-10-31 16:55:31 -05002567 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
2568 if (nic->rxd_mode == RXD_MODE_3B) {
2569 /* Two buffer mode */
2570
2571 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002572 * Buffer2 will have L3/L4 header plus
Ananda Rajuda6971d2005-10-31 16:55:31 -05002573 * L4 payload
2574 */
Veena Parat6d517a22007-07-23 02:20:51 -04002575 rxdp3->Buffer2_ptr = pci_map_single
Ananda Rajuda6971d2005-10-31 16:55:31 -05002576 (nic->pdev, skb->data, dev->mtu + 4,
2577 PCI_DMA_FROMDEVICE);
2578
Veena Parat491abf22007-07-23 02:37:14 -04002579 if( (rxdp3->Buffer2_ptr == 0) ||
2580 (rxdp3->Buffer2_ptr == DMA_ERROR_CODE))
2581 goto pci_map_failed;
2582
2583 rxdp3->Buffer1_ptr =
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002584 pci_map_single(nic->pdev,
Ananda Raju75c30b12006-07-24 19:55:09 -04002585 ba->ba_1, BUF1_LEN,
2586 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002587 if( (rxdp3->Buffer1_ptr == 0) ||
2588 (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) {
2589 pci_unmap_single
2590 (nic->pdev,
Al Viro3e847422007-08-02 19:21:30 +01002591 (dma_addr_t)rxdp3->Buffer2_ptr,
Veena Parat491abf22007-07-23 02:37:14 -04002592 dev->mtu + 4,
2593 PCI_DMA_FROMDEVICE);
2594 goto pci_map_failed;
Ananda Raju75c30b12006-07-24 19:55:09 -04002595 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002596 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
2597 rxdp->Control_2 |= SET_BUFFER2_SIZE_3
2598 (dev->mtu + 4);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002599 }
Jiri Slabyb7b5a122007-10-18 23:40:29 -07002600 rxdp->Control_2 |= s2BIT(0);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002601 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602 rxdp->Host_Control = (unsigned long) (skb);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002603 if (alloc_tab & ((1 << rxsync_frequency) - 1))
2604 rxdp->Control_1 |= RXD_OWN_XENA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605 off++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002606 if (off == (rxd_count[nic->rxd_mode] + 1))
2607 off = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002608 mac_control->rings[ring_no].rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002609
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002610 rxdp->Control_2 |= SET_RXD_MARKER;
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002611 if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) {
2612 if (first_rxdp) {
2613 wmb();
2614 first_rxdp->Control_1 |= RXD_OWN_XENA;
2615 }
2616 first_rxdp = rxdp;
2617 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002618 atomic_inc(&nic->rx_bufs_left[ring_no]);
2619 alloc_tab++;
2620 }
2621
2622 end:
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002623 /* Transfer ownership of first descriptor to adapter just before
2624 * exiting. Before that, use memory barrier so that ownership
2625 * and other fields are seen by adapter correctly.
2626 */
2627 if (first_rxdp) {
2628 wmb();
2629 first_rxdp->Control_1 |= RXD_OWN_XENA;
2630 }
2631
Linus Torvalds1da177e2005-04-16 15:20:36 -07002632 return SUCCESS;
Veena Parat491abf22007-07-23 02:37:14 -04002633pci_map_failed:
2634 stats->pci_map_fail_cnt++;
2635 stats->mem_freed += skb->truesize;
2636 dev_kfree_skb_irq(skb);
2637 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002638}
2639
Ananda Rajuda6971d2005-10-31 16:55:31 -05002640static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
2641{
2642 struct net_device *dev = sp->dev;
2643 int j;
2644 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002645 struct RxD_t *rxdp;
2646 struct mac_info *mac_control;
2647 struct buffAdd *ba;
Veena Parat6d517a22007-07-23 02:20:51 -04002648 struct RxD1 *rxdp1;
2649 struct RxD3 *rxdp3;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002650
2651 mac_control = &sp->mac_control;
2652 for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
2653 rxdp = mac_control->rings[ring_no].
2654 rx_blocks[blk].rxds[j].virt_addr;
2655 skb = (struct sk_buff *)
2656 ((unsigned long) rxdp->Host_Control);
2657 if (!skb) {
2658 continue;
2659 }
2660 if (sp->rxd_mode == RXD_MODE_1) {
Veena Parat6d517a22007-07-23 02:20:51 -04002661 rxdp1 = (struct RxD1*)rxdp;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002662 pci_unmap_single(sp->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002663 rxdp1->Buffer0_ptr,
2664 dev->mtu +
2665 HEADER_ETHERNET_II_802_3_SIZE
2666 + HEADER_802_2_SIZE +
2667 HEADER_SNAP_SIZE,
2668 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002669 memset(rxdp, 0, sizeof(struct RxD1));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002670 } else if(sp->rxd_mode == RXD_MODE_3B) {
Veena Parat6d517a22007-07-23 02:20:51 -04002671 rxdp3 = (struct RxD3*)rxdp;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002672 ba = &mac_control->rings[ring_no].
2673 ba[blk][j];
2674 pci_unmap_single(sp->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002675 rxdp3->Buffer0_ptr,
2676 BUF0_LEN,
Ananda Rajuda6971d2005-10-31 16:55:31 -05002677 PCI_DMA_FROMDEVICE);
2678 pci_unmap_single(sp->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002679 rxdp3->Buffer1_ptr,
2680 BUF1_LEN,
Ananda Rajuda6971d2005-10-31 16:55:31 -05002681 PCI_DMA_FROMDEVICE);
2682 pci_unmap_single(sp->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002683 rxdp3->Buffer2_ptr,
2684 dev->mtu + 4,
Ananda Rajuda6971d2005-10-31 16:55:31 -05002685 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002686 memset(rxdp, 0, sizeof(struct RxD3));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002687 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002688 sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002689 dev_kfree_skb(skb);
2690 atomic_dec(&sp->rx_bufs_left[ring_no]);
2691 }
2692}
2693
Linus Torvalds1da177e2005-04-16 15:20:36 -07002694/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002695 * free_rx_buffers - Frees all Rx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002696 * @sp: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002697 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002698 * This function will free all Rx buffers allocated by host.
2699 * Return Value:
2700 * NONE.
2701 */
2702
2703static void free_rx_buffers(struct s2io_nic *sp)
2704{
2705 struct net_device *dev = sp->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002706 int i, blk = 0, buf_cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002707 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002708 struct config_param *config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002709
2710 mac_control = &sp->mac_control;
2711 config = &sp->config;
2712
2713 for (i = 0; i < config->rx_ring_num; i++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002714 for (blk = 0; blk < rx_ring_sz[i]; blk++)
2715 free_rxd_blk(sp,i,blk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002716
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002717 mac_control->rings[i].rx_curr_put_info.block_index = 0;
2718 mac_control->rings[i].rx_curr_get_info.block_index = 0;
2719 mac_control->rings[i].rx_curr_put_info.offset = 0;
2720 mac_control->rings[i].rx_curr_get_info.offset = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002721 atomic_set(&sp->rx_bufs_left[i], 0);
2722 DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n",
2723 dev->name, buf_cnt, i);
2724 }
2725}
2726
2727/**
2728 * s2io_poll - Rx interrupt handler for NAPI support
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002729 * @napi : pointer to the napi structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002730 * @budget : The number of packets that were budgeted to be processed
Linus Torvalds1da177e2005-04-16 15:20:36 -07002731 * during one pass through the 'Poll" function.
2732 * Description:
2733 * Comes into picture only if NAPI support has been incorporated. It does
2734 * the same thing that rx_intr_handler does, but not in a interrupt context
2735 * also It will process only a given number of packets.
2736 * Return value:
2737 * 0 on success and 1 if there are No Rx packets to be processed.
2738 */
2739
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002740static int s2io_poll(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002741{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002742 struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi);
2743 struct net_device *dev = nic->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002744 int pkt_cnt = 0, org_pkts_to_process;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002745 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746 struct config_param *config;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002747 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002748 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002749
2750 mac_control = &nic->mac_control;
2751 config = &nic->config;
2752
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002753 nic->pkts_to_process = budget;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002754 org_pkts_to_process = nic->pkts_to_process;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002755
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002756 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
2757 readl(&bar0->rx_traffic_int);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002758
2759 for (i = 0; i < config->rx_ring_num; i++) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002760 rx_intr_handler(&mac_control->rings[i]);
2761 pkt_cnt = org_pkts_to_process - nic->pkts_to_process;
2762 if (!nic->pkts_to_process) {
2763 /* Quota for the current iteration has been met */
2764 goto no_rx;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002765 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002766 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002768 netif_rx_complete(dev, napi);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002769
2770 for (i = 0; i < config->rx_ring_num; i++) {
2771 if (fill_rx_buffers(nic, i) == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08002772 DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name);
2773 DBG_PRINT(INFO_DBG, " in Rx Poll!!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002774 break;
2775 }
2776 }
2777 /* Re enable the Rx interrupts. */
Ananda Rajuc92ca042006-04-21 19:18:03 -04002778 writeq(0x0, &bar0->rx_traffic_mask);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002779 readl(&bar0->rx_traffic_mask);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002780 return pkt_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002781
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002782no_rx:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002783 for (i = 0; i < config->rx_ring_num; i++) {
2784 if (fill_rx_buffers(nic, i) == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08002785 DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name);
2786 DBG_PRINT(INFO_DBG, " in Rx Poll!!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002787 break;
2788 }
2789 }
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002790 return pkt_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002791}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002792
Ananda Rajub41477f2006-07-24 19:52:49 -04002793#ifdef CONFIG_NET_POLL_CONTROLLER
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002794/**
Ananda Rajub41477f2006-07-24 19:52:49 -04002795 * s2io_netpoll - netpoll event handler entry point
Brian Haley612eff02006-06-15 14:36:36 -04002796 * @dev : pointer to the device structure.
2797 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04002798 * This function will be called by upper layer to check for events on the
2799 * interface in situations where interrupts are disabled. It is used for
2800 * specific in-kernel networking tasks, such as remote consoles and kernel
2801 * debugging over the network (example netdump in RedHat).
Brian Haley612eff02006-06-15 14:36:36 -04002802 */
Brian Haley612eff02006-06-15 14:36:36 -04002803static void s2io_netpoll(struct net_device *dev)
2804{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002805 struct s2io_nic *nic = dev->priv;
2806 struct mac_info *mac_control;
Brian Haley612eff02006-06-15 14:36:36 -04002807 struct config_param *config;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002808 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ananda Rajub41477f2006-07-24 19:52:49 -04002809 u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
Brian Haley612eff02006-06-15 14:36:36 -04002810 int i;
2811
Linas Vepstasd796fdb2007-05-14 18:37:30 -05002812 if (pci_channel_offline(nic->pdev))
2813 return;
2814
Brian Haley612eff02006-06-15 14:36:36 -04002815 disable_irq(dev->irq);
2816
Brian Haley612eff02006-06-15 14:36:36 -04002817 mac_control = &nic->mac_control;
2818 config = &nic->config;
2819
Brian Haley612eff02006-06-15 14:36:36 -04002820 writeq(val64, &bar0->rx_traffic_int);
Ananda Rajub41477f2006-07-24 19:52:49 -04002821 writeq(val64, &bar0->tx_traffic_int);
Brian Haley612eff02006-06-15 14:36:36 -04002822
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002823 /* we need to free up the transmitted skbufs or else netpoll will
Ananda Rajub41477f2006-07-24 19:52:49 -04002824 * run out of skbs and will fail and eventually netpoll application such
2825 * as netdump will fail.
2826 */
2827 for (i = 0; i < config->tx_fifo_num; i++)
2828 tx_intr_handler(&mac_control->fifos[i]);
2829
2830 /* check for received packet and indicate up to network */
Brian Haley612eff02006-06-15 14:36:36 -04002831 for (i = 0; i < config->rx_ring_num; i++)
2832 rx_intr_handler(&mac_control->rings[i]);
2833
2834 for (i = 0; i < config->rx_ring_num; i++) {
2835 if (fill_rx_buffers(nic, i) == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08002836 DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name);
2837 DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n");
Brian Haley612eff02006-06-15 14:36:36 -04002838 break;
2839 }
2840 }
Brian Haley612eff02006-06-15 14:36:36 -04002841 enable_irq(dev->irq);
2842 return;
2843}
2844#endif
2845
2846/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002847 * rx_intr_handler - Rx interrupt handler
2848 * @nic: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002849 * Description:
2850 * If the interrupt is because of a received frame or if the
Linus Torvalds1da177e2005-04-16 15:20:36 -07002851 * receive ring contains fresh as yet un-processed frames,this function is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002852 * called. It picks out the RxD at which place the last Rx processing had
2853 * stopped and sends the skb to the OSM's Rx handler and then increments
Linus Torvalds1da177e2005-04-16 15:20:36 -07002854 * the offset.
2855 * Return Value:
2856 * NONE.
2857 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002858static void rx_intr_handler(struct ring_info *ring_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002859{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002860 struct s2io_nic *nic = ring_data->nic;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002861 struct net_device *dev = (struct net_device *) nic->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002862 int get_block, put_block, put_offset;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002863 struct rx_curr_get_info get_info, put_info;
2864 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002865 struct sk_buff *skb;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002866 int pkt_cnt = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002867 int i;
Veena Parat6d517a22007-07-23 02:20:51 -04002868 struct RxD1* rxdp1;
2869 struct RxD3* rxdp3;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002870
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07002871 spin_lock(&nic->rx_lock);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07002872
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002873 get_info = ring_data->rx_curr_get_info;
2874 get_block = get_info.block_index;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002875 memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002876 put_block = put_info.block_index;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002877 rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002878 if (!napi) {
2879 spin_lock(&nic->put_lock);
2880 put_offset = ring_data->put_pos;
2881 spin_unlock(&nic->put_lock);
2882 } else
2883 put_offset = ring_data->put_pos;
2884
Ananda Rajuda6971d2005-10-31 16:55:31 -05002885 while (RXD_IS_UP2DT(rxdp)) {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002886 /*
2887 * If your are next to put index then it's
2888 * FIFO full condition
2889 */
Ananda Rajuda6971d2005-10-31 16:55:31 -05002890 if ((get_block == put_block) &&
2891 (get_info.offset + 1) == put_info.offset) {
Ananda Raju75c30b12006-07-24 19:55:09 -04002892 DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002893 break;
2894 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002895 skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control);
2896 if (skb == NULL) {
2897 DBG_PRINT(ERR_DBG, "%s: The skb is ",
2898 dev->name);
2899 DBG_PRINT(ERR_DBG, "Null in Rx Intr\n");
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07002900 spin_unlock(&nic->rx_lock);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002901 return;
2902 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002903 if (nic->rxd_mode == RXD_MODE_1) {
Veena Parat6d517a22007-07-23 02:20:51 -04002904 rxdp1 = (struct RxD1*)rxdp;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002905 pci_unmap_single(nic->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002906 rxdp1->Buffer0_ptr,
2907 dev->mtu +
2908 HEADER_ETHERNET_II_802_3_SIZE +
2909 HEADER_802_2_SIZE +
2910 HEADER_SNAP_SIZE,
2911 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002912 } else if (nic->rxd_mode == RXD_MODE_3B) {
Veena Parat6d517a22007-07-23 02:20:51 -04002913 rxdp3 = (struct RxD3*)rxdp;
Ananda Raju75c30b12006-07-24 19:55:09 -04002914 pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002915 rxdp3->Buffer0_ptr,
2916 BUF0_LEN, PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002917 pci_unmap_single(nic->pdev, (dma_addr_t)
Veena Parat6d517a22007-07-23 02:20:51 -04002918 rxdp3->Buffer2_ptr,
2919 dev->mtu + 4,
2920 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002921 }
Ananda Raju863c11a2006-04-21 19:03:13 -04002922 prefetch(skb->data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002923 rx_osm_handler(ring_data, rxdp);
2924 get_info.offset++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002925 ring_data->rx_curr_get_info.offset = get_info.offset;
2926 rxdp = ring_data->rx_blocks[get_block].
2927 rxds[get_info.offset].virt_addr;
2928 if (get_info.offset == rxd_count[nic->rxd_mode]) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002929 get_info.offset = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002930 ring_data->rx_curr_get_info.offset = get_info.offset;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002931 get_block++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002932 if (get_block == ring_data->block_count)
2933 get_block = 0;
2934 ring_data->rx_curr_get_info.block_index = get_block;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002935 rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
2936 }
2937
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002938 nic->pkts_to_process -= 1;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002939 if ((napi) && (!nic->pkts_to_process))
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002940 break;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002941 pkt_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002942 if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts))
2943 break;
2944 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002945 if (nic->lro) {
2946 /* Clear all LRO sessions before exiting */
2947 for (i=0; i<MAX_LRO_SESSIONS; i++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002948 struct lro *lro = &nic->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002949 if (lro->in_use) {
2950 update_L3L4_header(nic, lro);
2951 queue_rx_frame(lro->parent);
2952 clear_lro_session(lro);
2953 }
2954 }
2955 }
2956
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07002957 spin_unlock(&nic->rx_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002958}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002959
2960/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002961 * tx_intr_handler - Transmit interrupt handler
2962 * @nic : device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002963 * Description:
2964 * If an interrupt was raised to indicate DMA complete of the
2965 * Tx packet, this function is called. It identifies the last TxD
2966 * whose buffer was freed and frees all skbs whose data have already
Linus Torvalds1da177e2005-04-16 15:20:36 -07002967 * DMA'ed into the NICs internal memory.
2968 * Return Value:
2969 * NONE
2970 */
2971
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002972static void tx_intr_handler(struct fifo_info *fifo_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002973{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002974 struct s2io_nic *nic = fifo_data->nic;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002975 struct net_device *dev = (struct net_device *) nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002976 struct tx_curr_get_info get_info, put_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002977 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002978 struct TxD *txdlp;
Surjit Reang2fda0962008-01-24 02:08:59 -08002979 unsigned long flags = 0;
Olaf Heringf9046eb2007-06-19 22:41:10 +02002980 u8 err_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002981
Surjit Reang2fda0962008-01-24 02:08:59 -08002982 if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags))
2983 return;
2984
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002985 get_info = fifo_data->tx_curr_get_info;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002986 memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info));
2987 txdlp = (struct TxD *) fifo_data->list_info[get_info.offset].
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002988 list_virt_addr;
2989 while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) &&
2990 (get_info.offset != put_info.offset) &&
2991 (txdlp->Host_Control)) {
2992 /* Check for TxD errors */
2993 if (txdlp->Control_1 & TXD_T_CODE) {
2994 unsigned long long err;
2995 err = txdlp->Control_1 & TXD_T_CODE;
Ananda Rajubd1034f2006-04-21 19:20:22 -04002996 if (err & 0x1) {
2997 nic->mac_control.stats_info->sw_stat.
2998 parity_err_cnt++;
2999 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003000
3001 /* update t_code statistics */
Olaf Heringf9046eb2007-06-19 22:41:10 +02003002 err_mask = err >> 48;
3003 switch(err_mask) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003004 case 2:
3005 nic->mac_control.stats_info->sw_stat.
3006 tx_buf_abort_cnt++;
3007 break;
3008
3009 case 3:
3010 nic->mac_control.stats_info->sw_stat.
3011 tx_desc_abort_cnt++;
3012 break;
3013
3014 case 7:
3015 nic->mac_control.stats_info->sw_stat.
3016 tx_parity_err_cnt++;
3017 break;
3018
3019 case 10:
3020 nic->mac_control.stats_info->sw_stat.
3021 tx_link_loss_cnt++;
3022 break;
3023
3024 case 15:
3025 nic->mac_control.stats_info->sw_stat.
3026 tx_list_proc_err_cnt++;
3027 break;
3028 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003030
Ananda Rajufed5ecc2005-11-14 15:25:08 -05003031 skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003032 if (skb == NULL) {
Surjit Reang2fda0962008-01-24 02:08:59 -08003033 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003034 DBG_PRINT(ERR_DBG, "%s: Null skb ",
3035 __FUNCTION__);
3036 DBG_PRINT(ERR_DBG, "in Tx Free Intr\n");
3037 return;
3038 }
3039
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003040 /* Updating the statistics block */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003041 nic->stats.tx_bytes += skb->len;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003042 nic->mac_control.stats_info->sw_stat.mem_freed += skb->truesize;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003043 dev_kfree_skb_irq(skb);
3044
3045 get_info.offset++;
Ananda Raju863c11a2006-04-21 19:03:13 -04003046 if (get_info.offset == get_info.fifo_len + 1)
3047 get_info.offset = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003048 txdlp = (struct TxD *) fifo_data->list_info
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003049 [get_info.offset].list_virt_addr;
3050 fifo_data->tx_curr_get_info.offset =
3051 get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003052 }
3053
Linus Torvalds1da177e2005-04-16 15:20:36 -07003054 if (netif_queue_stopped(dev))
3055 netif_wake_queue(dev);
Surjit Reang2fda0962008-01-24 02:08:59 -08003056
3057 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003058}
3059
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003060/**
Ananda Rajubd1034f2006-04-21 19:20:22 -04003061 * s2io_mdio_write - Function to write in to MDIO registers
3062 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3063 * @addr : address value
3064 * @value : data value
3065 * @dev : pointer to net_device structure
3066 * Description:
3067 * This function is used to write values to the MDIO registers
3068 * NONE
3069 */
3070static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev)
3071{
3072 u64 val64 = 0x0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003073 struct s2io_nic *sp = dev->priv;
3074 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003075
3076 //address transaction
3077 val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
3078 | MDIO_MMD_DEV_ADDR(mmd_type)
3079 | MDIO_MMS_PRT_ADDR(0x0);
3080 writeq(val64, &bar0->mdio_control);
3081 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3082 writeq(val64, &bar0->mdio_control);
3083 udelay(100);
3084
3085 //Data transaction
3086 val64 = 0x0;
3087 val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
3088 | MDIO_MMD_DEV_ADDR(mmd_type)
3089 | MDIO_MMS_PRT_ADDR(0x0)
3090 | MDIO_MDIO_DATA(value)
3091 | MDIO_OP(MDIO_OP_WRITE_TRANS);
3092 writeq(val64, &bar0->mdio_control);
3093 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3094 writeq(val64, &bar0->mdio_control);
3095 udelay(100);
3096
3097 val64 = 0x0;
3098 val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
3099 | MDIO_MMD_DEV_ADDR(mmd_type)
3100 | MDIO_MMS_PRT_ADDR(0x0)
3101 | MDIO_OP(MDIO_OP_READ_TRANS);
3102 writeq(val64, &bar0->mdio_control);
3103 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3104 writeq(val64, &bar0->mdio_control);
3105 udelay(100);
3106
3107}
3108
3109/**
3110 * s2io_mdio_read - Function to write in to MDIO registers
3111 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3112 * @addr : address value
3113 * @dev : pointer to net_device structure
3114 * Description:
3115 * This function is used to read values to the MDIO registers
3116 * NONE
3117 */
3118static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
3119{
3120 u64 val64 = 0x0;
3121 u64 rval64 = 0x0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003122 struct s2io_nic *sp = dev->priv;
3123 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003124
3125 /* address transaction */
3126 val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
3127 | MDIO_MMD_DEV_ADDR(mmd_type)
3128 | MDIO_MMS_PRT_ADDR(0x0);
3129 writeq(val64, &bar0->mdio_control);
3130 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3131 writeq(val64, &bar0->mdio_control);
3132 udelay(100);
3133
3134 /* Data transaction */
3135 val64 = 0x0;
3136 val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
3137 | MDIO_MMD_DEV_ADDR(mmd_type)
3138 | MDIO_MMS_PRT_ADDR(0x0)
3139 | MDIO_OP(MDIO_OP_READ_TRANS);
3140 writeq(val64, &bar0->mdio_control);
3141 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3142 writeq(val64, &bar0->mdio_control);
3143 udelay(100);
3144
3145 /* Read the value from regs */
3146 rval64 = readq(&bar0->mdio_control);
3147 rval64 = rval64 & 0xFFFF0000;
3148 rval64 = rval64 >> 16;
3149 return rval64;
3150}
3151/**
3152 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
3153 * @counter : couter value to be updated
3154 * @flag : flag to indicate the status
3155 * @type : counter type
3156 * Description:
3157 * This function is to check the status of the xpak counters value
3158 * NONE
3159 */
3160
3161static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type)
3162{
3163 u64 mask = 0x3;
3164 u64 val64;
3165 int i;
3166 for(i = 0; i <index; i++)
3167 mask = mask << 0x2;
3168
3169 if(flag > 0)
3170 {
3171 *counter = *counter + 1;
3172 val64 = *regs_stat & mask;
3173 val64 = val64 >> (index * 0x2);
3174 val64 = val64 + 1;
3175 if(val64 == 3)
3176 {
3177 switch(type)
3178 {
3179 case 1:
3180 DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
3181 "service. Excessive temperatures may "
3182 "result in premature transceiver "
3183 "failure \n");
3184 break;
3185 case 2:
3186 DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
3187 "service Excessive bias currents may "
3188 "indicate imminent laser diode "
3189 "failure \n");
3190 break;
3191 case 3:
3192 DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
3193 "service Excessive laser output "
3194 "power may saturate far-end "
3195 "receiver\n");
3196 break;
3197 default:
3198 DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm "
3199 "type \n");
3200 }
3201 val64 = 0x0;
3202 }
3203 val64 = val64 << (index * 0x2);
3204 *regs_stat = (*regs_stat & (~mask)) | (val64);
3205
3206 } else {
3207 *regs_stat = *regs_stat & (~mask);
3208 }
3209}
3210
3211/**
3212 * s2io_updt_xpak_counter - Function to update the xpak counters
3213 * @dev : pointer to net_device struct
3214 * Description:
3215 * This function is to upate the status of the xpak counters value
3216 * NONE
3217 */
3218static void s2io_updt_xpak_counter(struct net_device *dev)
3219{
3220 u16 flag = 0x0;
3221 u16 type = 0x0;
3222 u16 val16 = 0x0;
3223 u64 val64 = 0x0;
3224 u64 addr = 0x0;
3225
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003226 struct s2io_nic *sp = dev->priv;
3227 struct stat_block *stat_info = sp->mac_control.stats_info;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003228
3229 /* Check the communication with the MDIO slave */
3230 addr = 0x0000;
3231 val64 = 0x0;
3232 val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
3233 if((val64 == 0xFFFF) || (val64 == 0x0000))
3234 {
3235 DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - "
3236 "Returned %llx\n", (unsigned long long)val64);
3237 return;
3238 }
3239
3240 /* Check for the expecte value of 2040 at PMA address 0x0000 */
3241 if(val64 != 0x2040)
3242 {
3243 DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - ");
3244 DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n",
3245 (unsigned long long)val64);
3246 return;
3247 }
3248
3249 /* Loading the DOM register to MDIO register */
3250 addr = 0xA100;
3251 s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev);
3252 val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
3253
3254 /* Reading the Alarm flags */
3255 addr = 0xA070;
3256 val64 = 0x0;
3257 val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
3258
3259 flag = CHECKBIT(val64, 0x7);
3260 type = 1;
3261 s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high,
3262 &stat_info->xpak_stat.xpak_regs_stat,
3263 0x0, flag, type);
3264
3265 if(CHECKBIT(val64, 0x6))
3266 stat_info->xpak_stat.alarm_transceiver_temp_low++;
3267
3268 flag = CHECKBIT(val64, 0x3);
3269 type = 2;
3270 s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high,
3271 &stat_info->xpak_stat.xpak_regs_stat,
3272 0x2, flag, type);
3273
3274 if(CHECKBIT(val64, 0x2))
3275 stat_info->xpak_stat.alarm_laser_bias_current_low++;
3276
3277 flag = CHECKBIT(val64, 0x1);
3278 type = 3;
3279 s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high,
3280 &stat_info->xpak_stat.xpak_regs_stat,
3281 0x4, flag, type);
3282
3283 if(CHECKBIT(val64, 0x0))
3284 stat_info->xpak_stat.alarm_laser_output_power_low++;
3285
3286 /* Reading the Warning flags */
3287 addr = 0xA074;
3288 val64 = 0x0;
3289 val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
3290
3291 if(CHECKBIT(val64, 0x7))
3292 stat_info->xpak_stat.warn_transceiver_temp_high++;
3293
3294 if(CHECKBIT(val64, 0x6))
3295 stat_info->xpak_stat.warn_transceiver_temp_low++;
3296
3297 if(CHECKBIT(val64, 0x3))
3298 stat_info->xpak_stat.warn_laser_bias_current_high++;
3299
3300 if(CHECKBIT(val64, 0x2))
3301 stat_info->xpak_stat.warn_laser_bias_current_low++;
3302
3303 if(CHECKBIT(val64, 0x1))
3304 stat_info->xpak_stat.warn_laser_output_power_high++;
3305
3306 if(CHECKBIT(val64, 0x0))
3307 stat_info->xpak_stat.warn_laser_output_power_low++;
3308}
3309
3310/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003311 * wait_for_cmd_complete - waits for a command to complete.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003312 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07003313 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003314 * Description: Function that waits for a command to Write into RMAC
3315 * ADDR DATA registers to be completed and returns either success or
3316 * error depending on whether the command was complete or not.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003317 * Return value:
3318 * SUCCESS on success and FAILURE on failure.
3319 */
3320
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003321static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
3322 int bit_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003323{
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003324 int ret = FAILURE, cnt = 0, delay = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003325 u64 val64;
3326
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003327 if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET))
3328 return FAILURE;
3329
3330 do {
Ananda Rajuc92ca042006-04-21 19:18:03 -04003331 val64 = readq(addr);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003332 if (bit_state == S2IO_BIT_RESET) {
3333 if (!(val64 & busy_bit)) {
3334 ret = SUCCESS;
3335 break;
3336 }
3337 } else {
3338 if (!(val64 & busy_bit)) {
3339 ret = SUCCESS;
3340 break;
3341 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003342 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003343
3344 if(in_interrupt())
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003345 mdelay(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003346 else
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003347 msleep(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003348
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003349 if (++cnt >= 10)
3350 delay = 50;
3351 } while (cnt < 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003352 return ret;
3353}
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003354/*
3355 * check_pci_device_id - Checks if the device id is supported
3356 * @id : device id
3357 * Description: Function to check if the pci device id is supported by driver.
3358 * Return value: Actual device id if supported else PCI_ANY_ID
3359 */
3360static u16 check_pci_device_id(u16 id)
3361{
3362 switch (id) {
3363 case PCI_DEVICE_ID_HERC_WIN:
3364 case PCI_DEVICE_ID_HERC_UNI:
3365 return XFRAME_II_DEVICE;
3366 case PCI_DEVICE_ID_S2IO_UNI:
3367 case PCI_DEVICE_ID_S2IO_WIN:
3368 return XFRAME_I_DEVICE;
3369 default:
3370 return PCI_ANY_ID;
3371 }
3372}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003373
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003374/**
3375 * s2io_reset - Resets the card.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003376 * @sp : private member of the device structure.
3377 * Description: Function to Reset the card. This function then also
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003378 * restores the previously saved PCI configuration space registers as
Linus Torvalds1da177e2005-04-16 15:20:36 -07003379 * the card reset also resets the configuration space.
3380 * Return value:
3381 * void.
3382 */
3383
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003384static void s2io_reset(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003385{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003386 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003387 u64 val64;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003388 u16 subid, pci_cmd;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003389 int i;
3390 u16 val16;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003391 unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt;
3392 unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt;
3393
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003394 DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n",
3395 __FUNCTION__, sp->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003396
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003397 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07003398 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003399
Linus Torvalds1da177e2005-04-16 15:20:36 -07003400 val64 = SW_RESET_ALL;
3401 writeq(val64, &bar0->sw_reset);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003402 if (strstr(sp->product_name, "CX4")) {
3403 msleep(750);
3404 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003405 msleep(250);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003406 for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
3407
3408 /* Restore the PCI state saved during initialization. */
3409 pci_restore_state(sp->pdev);
3410 pci_read_config_word(sp->pdev, 0x2, &val16);
3411 if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
3412 break;
3413 msleep(200);
3414 }
3415
3416 if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) {
3417 DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__);
3418 }
3419
3420 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
3421
3422 s2io_init_pci(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003423
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003424 /* Set swapper to enable I/O register access */
3425 s2io_set_swapper(sp);
3426
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003427 /* restore mac_addr entries */
3428 do_s2io_restore_unicast_mc(sp);
3429
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003430 /* Restore the MSIX table entries from local variables */
3431 restore_xmsi_data(sp);
3432
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003433 /* Clear certain PCI/PCI-X fields after reset */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003434 if (sp->device_type == XFRAME_II_DEVICE) {
Ananda Rajub41477f2006-07-24 19:52:49 -04003435 /* Clear "detected parity error" bit */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003436 pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003437
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003438 /* Clearing PCIX Ecc status register */
3439 pci_write_config_dword(sp->pdev, 0x68, 0x7C);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003440
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003441 /* Clearing PCI_STATUS error reflected here */
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003442 writeq(s2BIT(62), &bar0->txpic_int_reg);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003443 }
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003444
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003445 /* Reset device statistics maintained by OS */
3446 memset(&sp->stats, 0, sizeof (struct net_device_stats));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003447
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003448 up_cnt = sp->mac_control.stats_info->sw_stat.link_up_cnt;
3449 down_cnt = sp->mac_control.stats_info->sw_stat.link_down_cnt;
3450 up_time = sp->mac_control.stats_info->sw_stat.link_up_time;
3451 down_time = sp->mac_control.stats_info->sw_stat.link_down_time;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08003452 reset_cnt = sp->mac_control.stats_info->sw_stat.soft_reset_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003453 mem_alloc_cnt = sp->mac_control.stats_info->sw_stat.mem_allocated;
3454 mem_free_cnt = sp->mac_control.stats_info->sw_stat.mem_freed;
3455 watchdog_cnt = sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt;
3456 /* save link up/down time/cnt, reset/memory/watchdog cnt */
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08003457 memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block));
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003458 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
3459 sp->mac_control.stats_info->sw_stat.link_up_cnt = up_cnt;
3460 sp->mac_control.stats_info->sw_stat.link_down_cnt = down_cnt;
3461 sp->mac_control.stats_info->sw_stat.link_up_time = up_time;
3462 sp->mac_control.stats_info->sw_stat.link_down_time = down_time;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08003463 sp->mac_control.stats_info->sw_stat.soft_reset_cnt = reset_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003464 sp->mac_control.stats_info->sw_stat.mem_allocated = mem_alloc_cnt;
3465 sp->mac_control.stats_info->sw_stat.mem_freed = mem_free_cnt;
3466 sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt = watchdog_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003467
Linus Torvalds1da177e2005-04-16 15:20:36 -07003468 /* SXE-002: Configure link and activity LED to turn it off */
3469 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003470 if (((subid & 0xFF) >= 0x07) &&
3471 (sp->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003472 val64 = readq(&bar0->gpio_control);
3473 val64 |= 0x0000800000000000ULL;
3474 writeq(val64, &bar0->gpio_control);
3475 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01003476 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003477 }
3478
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003479 /*
3480 * Clear spurious ECC interrupts that would have occured on
3481 * XFRAME II cards after reset.
3482 */
3483 if (sp->device_type == XFRAME_II_DEVICE) {
3484 val64 = readq(&bar0->pcc_err_reg);
3485 writeq(val64, &bar0->pcc_err_reg);
3486 }
3487
Linus Torvalds1da177e2005-04-16 15:20:36 -07003488 sp->device_enabled_once = FALSE;
3489}
3490
3491/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003492 * s2io_set_swapper - to set the swapper controle on the card
3493 * @sp : private member of the device structure,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003494 * pointer to the s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003495 * Description: Function to set the swapper control on the card
Linus Torvalds1da177e2005-04-16 15:20:36 -07003496 * correctly depending on the 'endianness' of the system.
3497 * Return value:
3498 * SUCCESS on success and FAILURE on failure.
3499 */
3500
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003501static int s2io_set_swapper(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003502{
3503 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003504 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003505 u64 val64, valt, valr;
3506
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003507 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003508 * Set proper endian settings and verify the same by reading
3509 * the PIF Feed-back register.
3510 */
3511
3512 val64 = readq(&bar0->pif_rd_swapper_fb);
3513 if (val64 != 0x0123456789ABCDEFULL) {
3514 int i = 0;
3515 u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3516 0x8100008181000081ULL, /* FE=1, SE=0 */
3517 0x4200004242000042ULL, /* FE=0, SE=1 */
3518 0}; /* FE=0, SE=0 */
3519
3520 while(i<4) {
3521 writeq(value[i], &bar0->swapper_ctrl);
3522 val64 = readq(&bar0->pif_rd_swapper_fb);
3523 if (val64 == 0x0123456789ABCDEFULL)
3524 break;
3525 i++;
3526 }
3527 if (i == 4) {
3528 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ",
3529 dev->name);
3530 DBG_PRINT(ERR_DBG, "feedback read %llx\n",
3531 (unsigned long long) val64);
3532 return FAILURE;
3533 }
3534 valr = value[i];
3535 } else {
3536 valr = readq(&bar0->swapper_ctrl);
3537 }
3538
3539 valt = 0x0123456789ABCDEFULL;
3540 writeq(valt, &bar0->xmsi_address);
3541 val64 = readq(&bar0->xmsi_address);
3542
3543 if(val64 != valt) {
3544 int i = 0;
3545 u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3546 0x0081810000818100ULL, /* FE=1, SE=0 */
3547 0x0042420000424200ULL, /* FE=0, SE=1 */
3548 0}; /* FE=0, SE=0 */
3549
3550 while(i<4) {
3551 writeq((value[i] | valr), &bar0->swapper_ctrl);
3552 writeq(valt, &bar0->xmsi_address);
3553 val64 = readq(&bar0->xmsi_address);
3554 if(val64 == valt)
3555 break;
3556 i++;
3557 }
3558 if(i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003559 unsigned long long x = val64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003560 DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr ");
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003561 DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003562 return FAILURE;
3563 }
3564 }
3565 val64 = readq(&bar0->swapper_ctrl);
3566 val64 &= 0xFFFF000000000000ULL;
3567
3568#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003569 /*
3570 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003571 * big endian driver need not set anything.
3572 */
3573 val64 |= (SWAPPER_CTRL_TXP_FE |
3574 SWAPPER_CTRL_TXP_SE |
3575 SWAPPER_CTRL_TXD_R_FE |
3576 SWAPPER_CTRL_TXD_W_FE |
3577 SWAPPER_CTRL_TXF_R_FE |
3578 SWAPPER_CTRL_RXD_R_FE |
3579 SWAPPER_CTRL_RXD_W_FE |
3580 SWAPPER_CTRL_RXF_W_FE |
3581 SWAPPER_CTRL_XMSI_FE |
Linus Torvalds1da177e2005-04-16 15:20:36 -07003582 SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003583 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003584 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003585 writeq(val64, &bar0->swapper_ctrl);
3586#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003587 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003588 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003589 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003590 * we want to set.
3591 */
3592 val64 |= (SWAPPER_CTRL_TXP_FE |
3593 SWAPPER_CTRL_TXP_SE |
3594 SWAPPER_CTRL_TXD_R_FE |
3595 SWAPPER_CTRL_TXD_R_SE |
3596 SWAPPER_CTRL_TXD_W_FE |
3597 SWAPPER_CTRL_TXD_W_SE |
3598 SWAPPER_CTRL_TXF_R_FE |
3599 SWAPPER_CTRL_RXD_R_FE |
3600 SWAPPER_CTRL_RXD_R_SE |
3601 SWAPPER_CTRL_RXD_W_FE |
3602 SWAPPER_CTRL_RXD_W_SE |
3603 SWAPPER_CTRL_RXF_W_FE |
3604 SWAPPER_CTRL_XMSI_FE |
Linus Torvalds1da177e2005-04-16 15:20:36 -07003605 SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003606 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003607 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003608 writeq(val64, &bar0->swapper_ctrl);
3609#endif
3610 val64 = readq(&bar0->swapper_ctrl);
3611
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003612 /*
3613 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003614 * feedback register.
3615 */
3616 val64 = readq(&bar0->pif_rd_swapper_fb);
3617 if (val64 != 0x0123456789ABCDEFULL) {
3618 /* Endian settings are incorrect, calls for another dekko. */
3619 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ",
3620 dev->name);
3621 DBG_PRINT(ERR_DBG, "feedback read %llx\n",
3622 (unsigned long long) val64);
3623 return FAILURE;
3624 }
3625
3626 return SUCCESS;
3627}
3628
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003629static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003630{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003631 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003632 u64 val64;
3633 int ret = 0, cnt = 0;
3634
3635 do {
3636 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003637 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003638 break;
3639 mdelay(1);
3640 cnt++;
3641 } while(cnt < 5);
3642 if (cnt == 5) {
3643 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3644 ret = 1;
3645 }
3646
3647 return ret;
3648}
3649
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003650static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003651{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003652 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003653 u64 val64;
3654 int i;
3655
Ananda Raju75c30b12006-07-24 19:55:09 -04003656 for (i=0; i < MAX_REQUESTED_MSI_X; i++) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003657 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3658 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003659 val64 = (s2BIT(7) | s2BIT(15) | vBIT(i, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003660 writeq(val64, &bar0->xmsi_access);
3661 if (wait_for_msix_trans(nic, i)) {
3662 DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__);
3663 continue;
3664 }
3665 }
3666}
3667
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003668static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003669{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003670 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003671 u64 val64, addr, data;
3672 int i;
3673
3674 /* Store and display */
Ananda Raju75c30b12006-07-24 19:55:09 -04003675 for (i=0; i < MAX_REQUESTED_MSI_X; i++) {
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003676 val64 = (s2BIT(15) | vBIT(i, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003677 writeq(val64, &bar0->xmsi_access);
3678 if (wait_for_msix_trans(nic, i)) {
3679 DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__);
3680 continue;
3681 }
3682 addr = readq(&bar0->xmsi_address);
3683 data = readq(&bar0->xmsi_data);
3684 if (addr && data) {
3685 nic->msix_info[i].addr = addr;
3686 nic->msix_info[i].data = data;
3687 }
3688 }
3689}
3690
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003691static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003692{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003693 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003694 u64 tx_mat, rx_mat;
3695 u16 msi_control; /* Temp variable */
3696 int ret, i, j, msix_indx = 1;
3697
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003698 nic->entries = kcalloc(MAX_REQUESTED_MSI_X, sizeof(struct msix_entry),
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003699 GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003700 if (!nic->entries) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003701 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", \
3702 __FUNCTION__);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04003703 nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003704 return -ENOMEM;
3705 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003706 nic->mac_control.stats_info->sw_stat.mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003707 += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003708
3709 nic->s2io_entries =
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003710 kcalloc(MAX_REQUESTED_MSI_X, sizeof(struct s2io_msix_entry),
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003711 GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003712 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003713 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003714 __FUNCTION__);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04003715 nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003716 kfree(nic->entries);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003717 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003718 += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003719 return -ENOMEM;
3720 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003721 nic->mac_control.stats_info->sw_stat.mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003722 += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003723
3724 for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
3725 nic->entries[i].entry = i;
3726 nic->s2io_entries[i].entry = i;
3727 nic->s2io_entries[i].arg = NULL;
3728 nic->s2io_entries[i].in_use = 0;
3729 }
3730
3731 tx_mat = readq(&bar0->tx_mat0_n[0]);
3732 for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) {
3733 tx_mat |= TX_MAT_SET(i, msix_indx);
3734 nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i];
3735 nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE;
3736 nic->s2io_entries[msix_indx].in_use = MSIX_FLG;
3737 }
3738 writeq(tx_mat, &bar0->tx_mat0_n[0]);
3739
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003740 rx_mat = readq(&bar0->rx_mat);
3741 for (j = 0; j < nic->config.rx_ring_num; j++, msix_indx++) {
3742 rx_mat |= RX_MAT_SET(j, msix_indx);
3743 nic->s2io_entries[msix_indx].arg
3744 = &nic->mac_control.rings[j];
3745 nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE;
3746 nic->s2io_entries[msix_indx].in_use = MSIX_FLG;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003747 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003748 writeq(rx_mat, &bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003749
Ananda Rajuc92ca042006-04-21 19:18:03 -04003750 nic->avail_msix_vectors = 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003751 ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003752 /* We fail init if error or we get less vectors than min required */
3753 if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) {
3754 nic->avail_msix_vectors = ret;
3755 ret = pci_enable_msix(nic->pdev, nic->entries, ret);
3756 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003757 if (ret) {
3758 DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name);
3759 kfree(nic->entries);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003760 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003761 += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003762 kfree(nic->s2io_entries);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003763 nic->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003764 += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003765 nic->entries = NULL;
3766 nic->s2io_entries = NULL;
Ananda Rajuc92ca042006-04-21 19:18:03 -04003767 nic->avail_msix_vectors = 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003768 return -ENOMEM;
3769 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003770 if (!nic->avail_msix_vectors)
3771 nic->avail_msix_vectors = MAX_REQUESTED_MSI_X;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003772
3773 /*
3774 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3775 * in the herc NIC. (Temp change, needs to be removed later)
3776 */
3777 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3778 msi_control |= 0x1; /* Enable MSI */
3779 pci_write_config_word(nic->pdev, 0x42, msi_control);
3780
3781 return 0;
3782}
3783
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003784/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003785static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003786{
3787 struct s2io_nic *sp = dev_id;
3788
3789 sp->msi_detected = 1;
3790 wake_up(&sp->msi_wait);
3791
3792 return IRQ_HANDLED;
3793}
3794
3795/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003796static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003797{
3798 struct pci_dev *pdev = sp->pdev;
3799 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3800 int err;
3801 u64 val64, saved64;
3802
3803 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
3804 sp->name, sp);
3805 if (err) {
3806 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
3807 sp->dev->name, pci_name(pdev), pdev->irq);
3808 return err;
3809 }
3810
3811 init_waitqueue_head (&sp->msi_wait);
3812 sp->msi_detected = 0;
3813
3814 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3815 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3816 val64 |= SCHED_INT_CTRL_TIMER_EN;
3817 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3818 writeq(val64, &bar0->scheduled_int_ctrl);
3819
3820 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3821
3822 if (!sp->msi_detected) {
3823 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003824 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003825 "using MSI(X) during test\n", sp->dev->name,
3826 pci_name(pdev));
3827
3828 err = -EOPNOTSUPP;
3829 }
3830
3831 free_irq(sp->entries[1].vector, sp);
3832
3833 writeq(saved64, &bar0->scheduled_int_ctrl);
3834
3835 return err;
3836}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003837
3838static void remove_msix_isr(struct s2io_nic *sp)
3839{
3840 int i;
3841 u16 msi_control;
3842
3843 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3844 if (sp->s2io_entries[i].in_use ==
3845 MSIX_REGISTERED_SUCCESS) {
3846 int vector = sp->entries[i].vector;
3847 void *arg = sp->s2io_entries[i].arg;
3848 free_irq(vector, arg);
3849 }
3850 }
3851
3852 kfree(sp->entries);
3853 kfree(sp->s2io_entries);
3854 sp->entries = NULL;
3855 sp->s2io_entries = NULL;
3856
3857 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3858 msi_control &= 0xFFFE; /* Disable MSI */
3859 pci_write_config_word(sp->pdev, 0x42, msi_control);
3860
3861 pci_disable_msix(sp->pdev);
3862}
3863
3864static void remove_inta_isr(struct s2io_nic *sp)
3865{
3866 struct net_device *dev = sp->dev;
3867
3868 free_irq(sp->pdev->irq, dev);
3869}
3870
Linus Torvalds1da177e2005-04-16 15:20:36 -07003871/* ********************************************************* *
3872 * Functions defined below concern the OS part of the driver *
3873 * ********************************************************* */
3874
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003875/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003876 * s2io_open - open entry point of the driver
3877 * @dev : pointer to the device structure.
3878 * Description:
3879 * This function is the open entry point of the driver. It mainly calls a
3880 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003881 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003882 * Return value:
3883 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3884 * file on failure.
3885 */
3886
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003887static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003888{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003889 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003890 int err = 0;
3891
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003892 /*
3893 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003894 * Nic is initialized
3895 */
3896 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003897 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003898
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003899 if (sp->config.intr_type == MSI_X) {
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003900 int ret = s2io_enable_msi_x(sp);
3901
3902 if (!ret) {
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003903 ret = s2io_test_msi(sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003904 /* rollback MSI-X, will re-enable during add_isr() */
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003905 remove_msix_isr(sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003906 }
3907 if (ret) {
3908
3909 DBG_PRINT(ERR_DBG,
3910 "%s: MSI-X requested but failed to enable\n",
3911 dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003912 sp->config.intr_type = INTA;
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003913 }
3914 }
3915
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04003916 /* NAPI doesn't work well with MSI(X) */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003917 if (sp->config.intr_type != INTA) {
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04003918 if(sp->config.napi)
3919 sp->config.napi = 0;
3920 }
3921
Linus Torvalds1da177e2005-04-16 15:20:36 -07003922 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003923 err = s2io_card_up(sp);
3924 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003925 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3926 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003927 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003928 }
3929
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003930 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003931 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003932 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003933 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003934 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003935 }
3936
3937 netif_start_queue(dev);
3938 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003939
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003940hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003941 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003942 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003943 kfree(sp->entries);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003944 sp->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003945 += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
3946 }
3947 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003948 kfree(sp->s2io_entries);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003949 sp->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003950 += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
3951 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003952 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003953 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003954}
3955
3956/**
3957 * s2io_close -close entry point of the driver
3958 * @dev : device pointer.
3959 * Description:
3960 * This is the stop entry point of the driver. It needs to undo exactly
3961 * whatever was done by the open entry point,thus it's usually referred to
3962 * as the close function.Among other things this function mainly stops the
3963 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
3964 * Return value:
3965 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3966 * file on failure.
3967 */
3968
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003969static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003970{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003971 struct s2io_nic *sp = dev->priv;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003972 struct config_param *config = &sp->config;
3973 u64 tmp64;
3974 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003975
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05003976 /* Return if the device is already closed *
3977 * Can happen when s2io_card_up failed in change_mtu *
3978 */
3979 if (!is_s2io_card_up(sp))
3980 return 0;
3981
Linus Torvalds1da177e2005-04-16 15:20:36 -07003982 netif_stop_queue(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003983
3984 /* delete all populated mac entries */
3985 for (offset = 1; offset < config->max_mc_addr; offset++) {
3986 tmp64 = do_s2io_read_unicast_mc(sp, offset);
3987 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
3988 do_s2io_delete_unicast_mc(sp, tmp64);
3989 }
3990
Linus Torvalds1da177e2005-04-16 15:20:36 -07003991 /* Reset card, kill tasklet and free Tx and Rx buffers. */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003992 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003993
Linus Torvalds1da177e2005-04-16 15:20:36 -07003994 return 0;
3995}
3996
3997/**
3998 * s2io_xmit - Tx entry point of te driver
3999 * @skb : the socket buffer containing the Tx data.
4000 * @dev : device pointer.
4001 * Description :
4002 * This function is the Tx entry point of the driver. S2IO NIC supports
4003 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
4004 * NOTE: when device cant queue the pkt,just the trans_start variable will
4005 * not be upadted.
4006 * Return value:
4007 * 0 on success & 1 on failure.
4008 */
4009
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004010static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004011{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004012 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004013 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4014 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004015 struct TxD *txdp;
4016 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004017 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004018 u16 vlan_tag = 0;
4019 int vlan_priority = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004020 struct fifo_info *fifo = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004021 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004022 struct config_param *config;
Ananda Raju75c30b12006-07-24 19:55:09 -04004023 int offload_type;
Veena Parat491abf22007-07-23 02:37:14 -04004024 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004025
4026 mac_control = &sp->mac_control;
4027 config = &sp->config;
4028
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004029 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004030
4031 if (unlikely(skb->len <= 0)) {
4032 DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name);
4033 dev_kfree_skb_any(skb);
4034 return 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004035 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004036
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004037 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004038 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004039 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004040 dev_kfree_skb(skb);
4041 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004042 }
4043
4044 queue = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004045 /* Get Fifo number to Transmit based on vlan priority */
4046 if (sp->vlgrp && vlan_tx_tag_present(skb)) {
4047 vlan_tag = vlan_tx_tag_get(skb);
4048 vlan_priority = vlan_tag >> 13;
4049 queue = config->fifo_mapping[vlan_priority];
4050 }
4051
Surjit Reang2fda0962008-01-24 02:08:59 -08004052 fifo = &mac_control->fifos[queue];
4053 spin_lock_irqsave(&fifo->tx_lock, flags);
4054 put_off = (u16) fifo->tx_curr_put_info.offset;
4055 get_off = (u16) fifo->tx_curr_get_info.offset;
4056 txdp = (struct TxD *) fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004057
Surjit Reang2fda0962008-01-24 02:08:59 -08004058 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004059 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004060 if (txdp->Host_Control ||
4061 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004062 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004063 netif_stop_queue(dev);
4064 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004065 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004066 return 0;
4067 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004068
Ananda Raju75c30b12006-07-24 19:55:09 -04004069 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004070 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004071 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004072 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004073 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004074 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004075 txdp->Control_2 |=
4076 (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN |
4077 TXD_TX_CKO_UDP_EN);
4078 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004079 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4080 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004081 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07004082
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004083 if (sp->vlgrp && vlan_tx_tag_present(skb)) {
4084 txdp->Control_2 |= TXD_VLAN_ENABLE;
4085 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4086 }
4087
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004088 frg_len = skb->len - skb->data_len;
Ananda Raju75c30b12006-07-24 19:55:09 -04004089 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004090 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004091
Ananda Raju75c30b12006-07-24 19:55:09 -04004092 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004093 ufo_size &= ~7;
4094 txdp->Control_1 |= TXD_UFO_EN;
4095 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4096 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4097#ifdef __BIG_ENDIAN
Surjit Reang2fda0962008-01-24 02:08:59 -08004098 fifo->ufo_in_band_v[put_off] =
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004099 (u64)skb_shinfo(skb)->ip6_frag_id;
4100#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004101 fifo->ufo_in_band_v[put_off] =
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004102 (u64)skb_shinfo(skb)->ip6_frag_id << 32;
4103#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004104 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004105 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Surjit Reang2fda0962008-01-24 02:08:59 -08004106 fifo->ufo_in_band_v,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004107 sizeof(u64), PCI_DMA_TODEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04004108 if((txdp->Buffer_Pointer == 0) ||
4109 (txdp->Buffer_Pointer == DMA_ERROR_CODE))
4110 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004111 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004112 }
4113
4114 txdp->Buffer_Pointer = pci_map_single
4115 (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04004116 if((txdp->Buffer_Pointer == 0) ||
4117 (txdp->Buffer_Pointer == DMA_ERROR_CODE))
4118 goto pci_map_failed;
4119
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004120 txdp->Host_Control = (unsigned long) skb;
4121 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004122 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004123 txdp->Control_1 |= TXD_UFO_EN;
4124
4125 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004126 /* For fragmented SKB. */
4127 for (i = 0; i < frg_cnt; i++) {
4128 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004129 /* A '0' length fragment will be ignored */
4130 if (!frag->size)
4131 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004132 txdp++;
4133 txdp->Buffer_Pointer = (u64) pci_map_page
4134 (sp->pdev, frag->page, frag->page_offset,
4135 frag->size, PCI_DMA_TODEVICE);
Ananda Rajuefd51b52006-01-19 14:11:54 -05004136 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
Ananda Raju75c30b12006-07-24 19:55:09 -04004137 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004138 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004139 }
4140 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4141
Ananda Raju75c30b12006-07-24 19:55:09 -04004142 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004143 frg_cnt++; /* as Txd0 was used for inband header */
4144
Linus Torvalds1da177e2005-04-16 15:20:36 -07004145 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004146 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004147 writeq(val64, &tx_fifo->TxDL_Pointer);
4148
4149 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4150 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004151 if (offload_type)
4152 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004153
Linus Torvalds1da177e2005-04-16 15:20:36 -07004154 writeq(val64, &tx_fifo->List_Control);
4155
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004156 mmiowb();
4157
Linus Torvalds1da177e2005-04-16 15:20:36 -07004158 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004159 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004160 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004161 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004162
4163 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004164 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04004165 sp->mac_control.stats_info->sw_stat.fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004166 DBG_PRINT(TX_DBG,
4167 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4168 put_off, get_off);
4169 netif_stop_queue(dev);
4170 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004171 mac_control->stats_info->sw_stat.mem_allocated += skb->truesize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004172 dev->trans_start = jiffies;
Surjit Reang2fda0962008-01-24 02:08:59 -08004173 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004174
4175 return 0;
Veena Parat491abf22007-07-23 02:37:14 -04004176pci_map_failed:
4177 stats->pci_map_fail_cnt++;
4178 netif_stop_queue(dev);
4179 stats->mem_freed += skb->truesize;
4180 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004181 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Veena Parat491abf22007-07-23 02:37:14 -04004182 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004183}
4184
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004185static void
4186s2io_alarm_handle(unsigned long data)
4187{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004188 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004189 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004190
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004191 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004192 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4193}
4194
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004195static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n)
Ananda Raju75c30b12006-07-24 19:55:09 -04004196{
4197 int rxb_size, level;
4198
4199 if (!sp->lro) {
4200 rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
4201 level = rx_buffer_level(sp, rxb_size, rng_n);
4202
4203 if ((level == PANIC) && (!TASKLET_IN_USE)) {
4204 int ret;
4205 DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
4206 DBG_PRINT(INTR_DBG, "PANIC levels\n");
4207 if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08004208 DBG_PRINT(INFO_DBG, "Out of memory in %s",
Ananda Raju75c30b12006-07-24 19:55:09 -04004209 __FUNCTION__);
4210 clear_bit(0, (&sp->tasklet_status));
4211 return -1;
4212 }
4213 clear_bit(0, (&sp->tasklet_status));
4214 } else if (level == LOW)
4215 tasklet_schedule(&sp->task);
4216
4217 } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08004218 DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name);
4219 DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
Ananda Raju75c30b12006-07-24 19:55:09 -04004220 }
4221 return 0;
4222}
4223
David Howells7d12e782006-10-05 14:55:46 +01004224static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004225{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004226 struct ring_info *ring = (struct ring_info *)dev_id;
4227 struct s2io_nic *sp = ring->nic;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004228
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004229 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004230 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004231
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004232 rx_intr_handler(ring);
Ananda Raju75c30b12006-07-24 19:55:09 -04004233 s2io_chk_rx_buffers(sp, ring->ring_no);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004234
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004235 return IRQ_HANDLED;
4236}
4237
David Howells7d12e782006-10-05 14:55:46 +01004238static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004239{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004240 struct fifo_info *fifo = (struct fifo_info *)dev_id;
4241 struct s2io_nic *sp = fifo->nic;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004242
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004243 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004244 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004245
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004246 tx_intr_handler(fifo);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004247 return IRQ_HANDLED;
4248}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004249static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004250{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004251 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004252 u64 val64;
4253
4254 val64 = readq(&bar0->pic_int_status);
4255 if (val64 & PIC_INT_GPIO) {
4256 val64 = readq(&bar0->gpio_int_reg);
4257 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4258 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004259 /*
4260 * This is unstable state so clear both up/down
4261 * interrupt and adapter to re-evaluate the link state.
4262 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004263 val64 |= GPIO_INT_REG_LINK_DOWN;
4264 val64 |= GPIO_INT_REG_LINK_UP;
4265 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004266 val64 = readq(&bar0->gpio_int_mask);
4267 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4268 GPIO_INT_MASK_LINK_DOWN);
4269 writeq(val64, &bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004270 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004271 else if (val64 & GPIO_INT_REG_LINK_UP) {
4272 val64 = readq(&bar0->adapter_status);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004273 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004274 val64 = readq(&bar0->adapter_control);
4275 val64 |= ADAPTER_CNTL_EN;
4276 writeq(val64, &bar0->adapter_control);
4277 val64 |= ADAPTER_LED_ON;
4278 writeq(val64, &bar0->adapter_control);
4279 if (!sp->device_enabled_once)
4280 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004281
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004282 s2io_link(sp, LINK_UP);
4283 /*
4284 * unmask link down interrupt and mask link-up
4285 * intr
4286 */
4287 val64 = readq(&bar0->gpio_int_mask);
4288 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4289 val64 |= GPIO_INT_MASK_LINK_UP;
4290 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004291
Ananda Rajuc92ca042006-04-21 19:18:03 -04004292 }else if (val64 & GPIO_INT_REG_LINK_DOWN) {
4293 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004294 s2io_link(sp, LINK_DOWN);
4295 /* Link is down so unmaks link up interrupt */
4296 val64 = readq(&bar0->gpio_int_mask);
4297 val64 &= ~GPIO_INT_MASK_LINK_UP;
4298 val64 |= GPIO_INT_MASK_LINK_DOWN;
4299 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004300
4301 /* turn off LED */
4302 val64 = readq(&bar0->adapter_control);
4303 val64 = val64 &(~ADAPTER_LED_ON);
4304 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004305 }
4306 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004307 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004308}
4309
Linus Torvalds1da177e2005-04-16 15:20:36 -07004310/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004311 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4312 * @value: alarm bits
4313 * @addr: address value
4314 * @cnt: counter variable
4315 * Description: Check for alarm and increment the counter
4316 * Return Value:
4317 * 1 - if alarm bit set
4318 * 0 - if alarm bit is not set
4319 */
Stephen Hemminger43b7c452007-10-05 12:39:21 -07004320static int do_s2io_chk_alarm_bit(u64 value, void __iomem * addr,
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004321 unsigned long long *cnt)
4322{
4323 u64 val64;
4324 val64 = readq(addr);
4325 if ( val64 & value ) {
4326 writeq(val64, addr);
4327 (*cnt)++;
4328 return 1;
4329 }
4330 return 0;
4331
4332}
4333
4334/**
4335 * s2io_handle_errors - Xframe error indication handler
4336 * @nic: device private variable
4337 * Description: Handle alarms such as loss of link, single or
4338 * double ECC errors, critical and serious errors.
4339 * Return Value:
4340 * NONE
4341 */
4342static void s2io_handle_errors(void * dev_id)
4343{
4344 struct net_device *dev = (struct net_device *) dev_id;
4345 struct s2io_nic *sp = dev->priv;
4346 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4347 u64 temp64 = 0,val64=0;
4348 int i = 0;
4349
4350 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4351 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4352
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004353 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004354 return;
4355
4356 if (pci_channel_offline(sp->pdev))
4357 return;
4358
4359 memset(&sw_stat->ring_full_cnt, 0,
4360 sizeof(sw_stat->ring_full_cnt));
4361
4362 /* Handling the XPAK counters update */
4363 if(stats->xpak_timer_count < 72000) {
4364 /* waiting for an hour */
4365 stats->xpak_timer_count++;
4366 } else {
4367 s2io_updt_xpak_counter(dev);
4368 /* reset the count to zero */
4369 stats->xpak_timer_count = 0;
4370 }
4371
4372 /* Handling link status change error Intr */
4373 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4374 val64 = readq(&bar0->mac_rmac_err_reg);
4375 writeq(val64, &bar0->mac_rmac_err_reg);
4376 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4377 schedule_work(&sp->set_link_task);
4378 }
4379
4380 /* In case of a serious error, the device will be Reset. */
4381 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
4382 &sw_stat->serious_err_cnt))
4383 goto reset;
4384
4385 /* Check for data parity error */
4386 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
4387 &sw_stat->parity_err_cnt))
4388 goto reset;
4389
4390 /* Check for ring full counter */
4391 if (sp->device_type == XFRAME_II_DEVICE) {
4392 val64 = readq(&bar0->ring_bump_counter1);
4393 for (i=0; i<4; i++) {
4394 temp64 = ( val64 & vBIT(0xFFFF,(i*16),16));
4395 temp64 >>= 64 - ((i+1)*16);
4396 sw_stat->ring_full_cnt[i] += temp64;
4397 }
4398
4399 val64 = readq(&bar0->ring_bump_counter2);
4400 for (i=0; i<4; i++) {
4401 temp64 = ( val64 & vBIT(0xFFFF,(i*16),16));
4402 temp64 >>= 64 - ((i+1)*16);
4403 sw_stat->ring_full_cnt[i+4] += temp64;
4404 }
4405 }
4406
4407 val64 = readq(&bar0->txdma_int_status);
4408 /*check for pfc_err*/
4409 if (val64 & TXDMA_PFC_INT) {
4410 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM|
4411 PFC_MISC_0_ERR | PFC_MISC_1_ERR|
4412 PFC_PCIX_ERR, &bar0->pfc_err_reg,
4413 &sw_stat->pfc_err_cnt))
4414 goto reset;
4415 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR, &bar0->pfc_err_reg,
4416 &sw_stat->pfc_err_cnt);
4417 }
4418
4419 /*check for tda_err*/
4420 if (val64 & TXDMA_TDA_INT) {
4421 if(do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
4422 TDA_SM1_ERR_ALARM, &bar0->tda_err_reg,
4423 &sw_stat->tda_err_cnt))
4424 goto reset;
4425 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
4426 &bar0->tda_err_reg, &sw_stat->tda_err_cnt);
4427 }
4428 /*check for pcc_err*/
4429 if (val64 & TXDMA_PCC_INT) {
4430 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM
4431 | PCC_N_SERR | PCC_6_COF_OV_ERR
4432 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR
4433 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR
4434 | PCC_TXB_ECC_DB_ERR, &bar0->pcc_err_reg,
4435 &sw_stat->pcc_err_cnt))
4436 goto reset;
4437 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
4438 &bar0->pcc_err_reg, &sw_stat->pcc_err_cnt);
4439 }
4440
4441 /*check for tti_err*/
4442 if (val64 & TXDMA_TTI_INT) {
4443 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM, &bar0->tti_err_reg,
4444 &sw_stat->tti_err_cnt))
4445 goto reset;
4446 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
4447 &bar0->tti_err_reg, &sw_stat->tti_err_cnt);
4448 }
4449
4450 /*check for lso_err*/
4451 if (val64 & TXDMA_LSO_INT) {
4452 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT
4453 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4454 &bar0->lso_err_reg, &sw_stat->lso_err_cnt))
4455 goto reset;
4456 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
4457 &bar0->lso_err_reg, &sw_stat->lso_err_cnt);
4458 }
4459
4460 /*check for tpa_err*/
4461 if (val64 & TXDMA_TPA_INT) {
4462 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM, &bar0->tpa_err_reg,
4463 &sw_stat->tpa_err_cnt))
4464 goto reset;
4465 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP, &bar0->tpa_err_reg,
4466 &sw_stat->tpa_err_cnt);
4467 }
4468
4469 /*check for sm_err*/
4470 if (val64 & TXDMA_SM_INT) {
4471 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM, &bar0->sm_err_reg,
4472 &sw_stat->sm_err_cnt))
4473 goto reset;
4474 }
4475
4476 val64 = readq(&bar0->mac_int_status);
4477 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4478 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
4479 &bar0->mac_tmac_err_reg,
4480 &sw_stat->mac_tmac_err_cnt))
4481 goto reset;
4482 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR
4483 | TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
4484 &bar0->mac_tmac_err_reg,
4485 &sw_stat->mac_tmac_err_cnt);
4486 }
4487
4488 val64 = readq(&bar0->xgxs_int_status);
4489 if (val64 & XGXS_INT_STATUS_TXGXS) {
4490 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR,
4491 &bar0->xgxs_txgxs_err_reg,
4492 &sw_stat->xgxs_txgxs_err_cnt))
4493 goto reset;
4494 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
4495 &bar0->xgxs_txgxs_err_reg,
4496 &sw_stat->xgxs_txgxs_err_cnt);
4497 }
4498
4499 val64 = readq(&bar0->rxdma_int_status);
4500 if (val64 & RXDMA_INT_RC_INT_M) {
4501 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR
4502 | RC_PRCn_SM_ERR_ALARM |RC_FTC_SM_ERR_ALARM,
4503 &bar0->rc_err_reg, &sw_stat->rc_err_cnt))
4504 goto reset;
4505 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR
4506 | RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4507 &sw_stat->rc_err_cnt);
4508 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn
4509 | PRC_PCI_AB_F_WR_Rn, &bar0->prc_pcix_err_reg,
4510 &sw_stat->prc_pcix_err_cnt))
4511 goto reset;
4512 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn | PRC_PCI_DP_WR_Rn
4513 | PRC_PCI_DP_F_WR_Rn, &bar0->prc_pcix_err_reg,
4514 &sw_stat->prc_pcix_err_cnt);
4515 }
4516
4517 if (val64 & RXDMA_INT_RPA_INT_M) {
4518 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR,
4519 &bar0->rpa_err_reg, &sw_stat->rpa_err_cnt))
4520 goto reset;
4521 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR,
4522 &bar0->rpa_err_reg, &sw_stat->rpa_err_cnt);
4523 }
4524
4525 if (val64 & RXDMA_INT_RDA_INT_M) {
4526 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR
4527 | RDA_FRM_ECC_DB_N_AERR | RDA_SM1_ERR_ALARM
4528 | RDA_SM0_ERR_ALARM | RDA_RXD_ECC_DB_SERR,
4529 &bar0->rda_err_reg, &sw_stat->rda_err_cnt))
4530 goto reset;
4531 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR | RDA_FRM_ECC_SG_ERR
4532 | RDA_MISC_ERR | RDA_PCIX_ERR,
4533 &bar0->rda_err_reg, &sw_stat->rda_err_cnt);
4534 }
4535
4536 if (val64 & RXDMA_INT_RTI_INT_M) {
4537 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM, &bar0->rti_err_reg,
4538 &sw_stat->rti_err_cnt))
4539 goto reset;
4540 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
4541 &bar0->rti_err_reg, &sw_stat->rti_err_cnt);
4542 }
4543
4544 val64 = readq(&bar0->mac_int_status);
4545 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4546 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
4547 &bar0->mac_rmac_err_reg,
4548 &sw_stat->mac_rmac_err_cnt))
4549 goto reset;
4550 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT|RMAC_SINGLE_ECC_ERR|
4551 RMAC_DOUBLE_ECC_ERR, &bar0->mac_rmac_err_reg,
4552 &sw_stat->mac_rmac_err_cnt);
4553 }
4554
4555 val64 = readq(&bar0->xgxs_int_status);
4556 if (val64 & XGXS_INT_STATUS_RXGXS) {
4557 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
4558 &bar0->xgxs_rxgxs_err_reg,
4559 &sw_stat->xgxs_rxgxs_err_cnt))
4560 goto reset;
4561 }
4562
4563 val64 = readq(&bar0->mc_int_status);
4564 if(val64 & MC_INT_STATUS_MC_INT) {
4565 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR, &bar0->mc_err_reg,
4566 &sw_stat->mc_err_cnt))
4567 goto reset;
4568
4569 /* Handling Ecc errors */
4570 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4571 writeq(val64, &bar0->mc_err_reg);
4572 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4573 sw_stat->double_ecc_errs++;
4574 if (sp->device_type != XFRAME_II_DEVICE) {
4575 /*
4576 * Reset XframeI only if critical error
4577 */
4578 if (val64 &
4579 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4580 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4581 goto reset;
4582 }
4583 } else
4584 sw_stat->single_ecc_errs++;
4585 }
4586 }
4587 return;
4588
4589reset:
4590 netif_stop_queue(dev);
4591 schedule_work(&sp->rst_timer_task);
4592 sw_stat->soft_reset_cnt++;
4593 return;
4594}
4595
4596/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004597 * s2io_isr - ISR handler of the device .
4598 * @irq: the irq of the device.
4599 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004600 * Description: This function is the ISR handler of the device. It
4601 * identifies the reason for the interrupt and calls the relevant
4602 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004603 * recv buffers, if their numbers are below the panic value which is
4604 * presently set to 25% of the original number of rcv buffers allocated.
4605 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004606 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004607 * IRQ_NONE: will be returned if interrupt is not from our device
4608 */
David Howells7d12e782006-10-05 14:55:46 +01004609static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004610{
4611 struct net_device *dev = (struct net_device *) dev_id;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004612 struct s2io_nic *sp = dev->priv;
4613 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004614 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004615 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004616 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004617 struct config_param *config;
4618
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004619 /* Pretend we handled any irq's from a disconnected card */
4620 if (pci_channel_offline(sp->pdev))
4621 return IRQ_NONE;
4622
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004623 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004624 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004625
Linus Torvalds1da177e2005-04-16 15:20:36 -07004626 mac_control = &sp->mac_control;
4627 config = &sp->config;
4628
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004629 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004630 * Identify the cause for interrupt and call the appropriate
4631 * interrupt handler. Causes for the interrupt could be;
4632 * 1. Rx of packet.
4633 * 2. Tx complete.
4634 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004635 */
4636 reason = readq(&bar0->general_int_status);
4637
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004638 if (unlikely(reason == S2IO_MINUS_ONE) ) {
4639 /* Nothing much can be done. Get out */
4640 return IRQ_HANDLED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004641 }
4642
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004643 if (reason & (GEN_INTR_RXTRAFFIC |
4644 GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC))
4645 {
4646 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4647
4648 if (config->napi) {
4649 if (reason & GEN_INTR_RXTRAFFIC) {
4650 if (likely(netif_rx_schedule_prep(dev,
4651 &sp->napi))) {
4652 __netif_rx_schedule(dev, &sp->napi);
4653 writeq(S2IO_MINUS_ONE,
4654 &bar0->rx_traffic_mask);
4655 } else
4656 writeq(S2IO_MINUS_ONE,
4657 &bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004658 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004659 } else {
4660 /*
4661 * rx_traffic_int reg is an R1 register, writing all 1's
4662 * will ensure that the actual interrupt causing bit
4663 * get's cleared and hence a read can be avoided.
4664 */
4665 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004666 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004667
4668 for (i = 0; i < config->rx_ring_num; i++)
4669 rx_intr_handler(&mac_control->rings[i]);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004670 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004671
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004672 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004673 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004674 * will ensure that the actual interrupt causing bit get's
4675 * cleared and hence a read can be avoided.
4676 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004677 if (reason & GEN_INTR_TXTRAFFIC)
4678 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004679
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004680 for (i = 0; i < config->tx_fifo_num; i++)
4681 tx_intr_handler(&mac_control->fifos[i]);
4682
4683 if (reason & GEN_INTR_TXPIC)
4684 s2io_txpic_intr_handle(sp);
4685
4686 /*
4687 * Reallocate the buffers from the interrupt handler itself.
4688 */
4689 if (!config->napi) {
4690 for (i = 0; i < config->rx_ring_num; i++)
4691 s2io_chk_rx_buffers(sp, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004692 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004693 writeq(sp->general_int_mask, &bar0->general_int_mask);
4694 readl(&bar0->general_int_status);
4695
4696 return IRQ_HANDLED;
4697
4698 }
4699 else if (!reason) {
4700 /* The interrupt was not raised by us */
4701 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004702 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004703
Linus Torvalds1da177e2005-04-16 15:20:36 -07004704 return IRQ_HANDLED;
4705}
4706
4707/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004708 * s2io_updt_stats -
4709 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004710static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004711{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004712 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004713 u64 val64;
4714 int cnt = 0;
4715
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004716 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004717 /* Apprx 30us on a 133 MHz bus */
4718 val64 = SET_UPDT_CLICKS(10) |
4719 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4720 writeq(val64, &bar0->stat_cfg);
4721 do {
4722 udelay(100);
4723 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004724 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004725 break;
4726 cnt++;
4727 if (cnt == 5)
4728 break; /* Updt failed */
4729 } while(1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004730 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004731}
4732
4733/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004734 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004735 * @dev : pointer to the device structure.
4736 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004737 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004738 * structure and returns a pointer to the same.
4739 * Return value:
4740 * pointer to the updated net_device_stats structure.
4741 */
4742
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004743static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004744{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004745 struct s2io_nic *sp = dev->priv;
4746 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004747 struct config_param *config;
4748
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004749
Linus Torvalds1da177e2005-04-16 15:20:36 -07004750 mac_control = &sp->mac_control;
4751 config = &sp->config;
4752
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004753 /* Configure Stats for immediate updt */
4754 s2io_updt_stats(sp);
4755
4756 sp->stats.tx_packets =
4757 le32_to_cpu(mac_control->stats_info->tmac_frms);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004758 sp->stats.tx_errors =
4759 le32_to_cpu(mac_control->stats_info->tmac_any_err_frms);
4760 sp->stats.rx_errors =
Al Viroee705db2006-09-23 01:28:17 +01004761 le64_to_cpu(mac_control->stats_info->rmac_drop_frms);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004762 sp->stats.multicast =
4763 le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004764 sp->stats.rx_length_errors =
Al Viroee705db2006-09-23 01:28:17 +01004765 le64_to_cpu(mac_control->stats_info->rmac_long_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004766
4767 return (&sp->stats);
4768}
4769
4770/**
4771 * s2io_set_multicast - entry point for multicast address enable/disable.
4772 * @dev : pointer to the device structure
4773 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004774 * This function is a driver entry point which gets called by the kernel
4775 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004776 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4777 * determine, if multicast address must be enabled or if promiscuous mode
4778 * is to be disabled etc.
4779 * Return value:
4780 * void.
4781 */
4782
4783static void s2io_set_multicast(struct net_device *dev)
4784{
4785 int i, j, prev_cnt;
4786 struct dev_mc_list *mclist;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004787 struct s2io_nic *sp = dev->priv;
4788 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004789 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
4790 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004791 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004793 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004794
4795 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
4796 /* Enable all Multicast addresses */
4797 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
4798 &bar0->rmac_addr_data0_mem);
4799 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
4800 &bar0->rmac_addr_data1_mem);
4801 val64 = RMAC_ADDR_CMD_MEM_WE |
4802 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004803 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004804 writeq(val64, &bar0->rmac_addr_cmd_mem);
4805 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004806 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05004807 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4808 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004809
4810 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004811 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004812 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
4813 /* Disable all Multicast addresses */
4814 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
4815 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07004816 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
4817 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004818 val64 = RMAC_ADDR_CMD_MEM_WE |
4819 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4820 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
4821 writeq(val64, &bar0->rmac_addr_cmd_mem);
4822 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004823 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05004824 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4825 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004826
4827 sp->m_cast_flg = 0;
4828 sp->all_multi_pos = 0;
4829 }
4830
4831 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
4832 /* Put the NIC into promiscuous mode */
4833 add = &bar0->mac_cfg;
4834 val64 = readq(&bar0->mac_cfg);
4835 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
4836
4837 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
4838 writel((u32) val64, add);
4839 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
4840 writel((u32) (val64 >> 32), (add + 4));
4841
Sivakumar Subramani926930b2007-02-24 01:59:39 -05004842 if (vlan_tag_strip != 1) {
4843 val64 = readq(&bar0->rx_pa_cfg);
4844 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
4845 writeq(val64, &bar0->rx_pa_cfg);
4846 vlan_strip_flag = 0;
4847 }
4848
Linus Torvalds1da177e2005-04-16 15:20:36 -07004849 val64 = readq(&bar0->mac_cfg);
4850 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004851 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004852 dev->name);
4853 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
4854 /* Remove the NIC from promiscuous mode */
4855 add = &bar0->mac_cfg;
4856 val64 = readq(&bar0->mac_cfg);
4857 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
4858
4859 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
4860 writel((u32) val64, add);
4861 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
4862 writel((u32) (val64 >> 32), (add + 4));
4863
Sivakumar Subramani926930b2007-02-24 01:59:39 -05004864 if (vlan_tag_strip != 0) {
4865 val64 = readq(&bar0->rx_pa_cfg);
4866 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
4867 writeq(val64, &bar0->rx_pa_cfg);
4868 vlan_strip_flag = 1;
4869 }
4870
Linus Torvalds1da177e2005-04-16 15:20:36 -07004871 val64 = readq(&bar0->mac_cfg);
4872 sp->promisc_flg = 0;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004873 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004874 dev->name);
4875 }
4876
4877 /* Update individual M_CAST address list */
4878 if ((!sp->m_cast_flg) && dev->mc_count) {
4879 if (dev->mc_count >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004880 (config->max_mc_addr - config->max_mac_addr)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004881 DBG_PRINT(ERR_DBG, "%s: No more Rx filters ",
4882 dev->name);
4883 DBG_PRINT(ERR_DBG, "can be added, please enable ");
4884 DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n");
4885 return;
4886 }
4887
4888 prev_cnt = sp->mc_addr_count;
4889 sp->mc_addr_count = dev->mc_count;
4890
4891 /* Clear out the previous list of Mc in the H/W. */
4892 for (i = 0; i < prev_cnt; i++) {
4893 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
4894 &bar0->rmac_addr_data0_mem);
4895 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004896 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004897 val64 = RMAC_ADDR_CMD_MEM_WE |
4898 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4899 RMAC_ADDR_CMD_MEM_OFFSET
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004900 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004901 writeq(val64, &bar0->rmac_addr_cmd_mem);
4902
4903 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004904 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05004905 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4906 S2IO_BIT_RESET)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004907 DBG_PRINT(ERR_DBG, "%s: Adding ",
4908 dev->name);
4909 DBG_PRINT(ERR_DBG, "Multicasts failed\n");
4910 return;
4911 }
4912 }
4913
4914 /* Create the new Rx filter list and update the same in H/W. */
4915 for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
4916 i++, mclist = mclist->next) {
4917 memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr,
4918 ETH_ALEN);
Jeff Garzika7a80d52006-03-04 12:06:51 -05004919 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004920 for (j = 0; j < ETH_ALEN; j++) {
4921 mac_addr |= mclist->dmi_addr[j];
4922 mac_addr <<= 8;
4923 }
4924 mac_addr >>= 8;
4925 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
4926 &bar0->rmac_addr_data0_mem);
4927 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004928 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004929 val64 = RMAC_ADDR_CMD_MEM_WE |
4930 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4931 RMAC_ADDR_CMD_MEM_OFFSET
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004932 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004933 writeq(val64, &bar0->rmac_addr_cmd_mem);
4934
4935 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004936 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05004937 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4938 S2IO_BIT_RESET)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004939 DBG_PRINT(ERR_DBG, "%s: Adding ",
4940 dev->name);
4941 DBG_PRINT(ERR_DBG, "Multicasts failed\n");
4942 return;
4943 }
4944 }
4945 }
4946}
4947
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004948/* read from CAM unicast & multicast addresses and store it in
4949 * def_mac_addr structure
4950 */
4951void do_s2io_store_unicast_mc(struct s2io_nic *sp)
4952{
4953 int offset;
4954 u64 mac_addr = 0x0;
4955 struct config_param *config = &sp->config;
4956
4957 /* store unicast & multicast mac addresses */
4958 for (offset = 0; offset < config->max_mc_addr; offset++) {
4959 mac_addr = do_s2io_read_unicast_mc(sp, offset);
4960 /* if read fails disable the entry */
4961 if (mac_addr == FAILURE)
4962 mac_addr = S2IO_DISABLE_MAC_ENTRY;
4963 do_s2io_copy_mac_addr(sp, offset, mac_addr);
4964 }
4965}
4966
4967/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
4968static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
4969{
4970 int offset;
4971 struct config_param *config = &sp->config;
4972 /* restore unicast mac address */
4973 for (offset = 0; offset < config->max_mac_addr; offset++)
4974 do_s2io_prog_unicast(sp->dev,
4975 sp->def_mac_addr[offset].mac_addr);
4976
4977 /* restore multicast mac address */
4978 for (offset = config->mc_start_offset;
4979 offset < config->max_mc_addr; offset++)
4980 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
4981}
4982
4983/* add a multicast MAC address to CAM */
4984static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
4985{
4986 int i;
4987 u64 mac_addr = 0;
4988 struct config_param *config = &sp->config;
4989
4990 for (i = 0; i < ETH_ALEN; i++) {
4991 mac_addr <<= 8;
4992 mac_addr |= addr[i];
4993 }
4994 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
4995 return SUCCESS;
4996
4997 /* check if the multicast mac already preset in CAM */
4998 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
4999 u64 tmp64;
5000 tmp64 = do_s2io_read_unicast_mc(sp, i);
5001 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5002 break;
5003
5004 if (tmp64 == mac_addr)
5005 return SUCCESS;
5006 }
5007 if (i == config->max_mc_addr) {
5008 DBG_PRINT(ERR_DBG,
5009 "CAM full no space left for multicast MAC\n");
5010 return FAILURE;
5011 }
5012 /* Update the internal structure with this new mac address */
5013 do_s2io_copy_mac_addr(sp, i, mac_addr);
5014
5015 return (do_s2io_add_mac(sp, mac_addr, i));
5016}
5017
5018/* add MAC address to CAM */
5019static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005020{
5021 u64 val64;
5022 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5023
5024 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
5025 &bar0->rmac_addr_data0_mem);
5026
5027 val64 =
5028 RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5029 RMAC_ADDR_CMD_MEM_OFFSET(off);
5030 writeq(val64, &bar0->rmac_addr_cmd_mem);
5031
5032 /* Wait till command completes */
5033 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
5034 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5035 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005036 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005037 return FAILURE;
5038 }
5039 return SUCCESS;
5040}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005041/* deletes a specified unicast/multicast mac entry from CAM */
5042static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5043{
5044 int offset;
5045 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5046 struct config_param *config = &sp->config;
5047
5048 for (offset = 1;
5049 offset < config->max_mc_addr; offset++) {
5050 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5051 if (tmp64 == addr) {
5052 /* disable the entry by writing 0xffffffffffffULL */
5053 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5054 return FAILURE;
5055 /* store the new mac list from CAM */
5056 do_s2io_store_unicast_mc(sp);
5057 return SUCCESS;
5058 }
5059 }
5060 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
5061 (unsigned long long)addr);
5062 return FAILURE;
5063}
5064
5065/* read mac entries from CAM */
5066static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5067{
5068 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5069 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5070
5071 /* read mac addr */
5072 val64 =
5073 RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5074 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5075 writeq(val64, &bar0->rmac_addr_cmd_mem);
5076
5077 /* Wait till command completes */
5078 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
5079 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5080 S2IO_BIT_RESET)) {
5081 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5082 return FAILURE;
5083 }
5084 tmp64 = readq(&bar0->rmac_addr_data0_mem);
5085 return (tmp64 >> 16);
5086}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005087
Linus Torvalds1da177e2005-04-16 15:20:36 -07005088/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005089 * s2io_set_mac_addr driver entry point
5090 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005091
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005092static int s2io_set_mac_addr(struct net_device *dev, void *p)
5093{
5094 struct sockaddr *addr = p;
5095
5096 if (!is_valid_ether_addr(addr->sa_data))
5097 return -EINVAL;
5098
5099 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5100
5101 /* store the MAC address in CAM */
5102 return (do_s2io_prog_unicast(dev, dev->dev_addr));
5103}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005104/**
5105 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005106 * @dev : pointer to the device structure.
5107 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005108 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005109 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005110 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005111 * as defined in errno.h file on failure.
5112 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005113
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005114static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005115{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005116 struct s2io_nic *sp = dev->priv;
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005117 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005118 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005119 u64 tmp64;
5120 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005121
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005122 /*
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005123 * Set the new MAC address as the new unicast filter and reflect this
5124 * change on the device address registered with the OS. It will be
5125 * at offset 0.
5126 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005127 for (i = 0; i < ETH_ALEN; i++) {
5128 mac_addr <<= 8;
5129 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005130 perm_addr <<= 8;
5131 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005132 }
5133
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005134 /* check if the dev_addr is different than perm_addr */
5135 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005136 return SUCCESS;
5137
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005138 /* check if the mac already preset in CAM */
5139 for (i = 1; i < config->max_mac_addr; i++) {
5140 tmp64 = do_s2io_read_unicast_mc(sp, i);
5141 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5142 break;
5143
5144 if (tmp64 == mac_addr) {
5145 DBG_PRINT(INFO_DBG,
5146 "MAC addr:0x%llx already present in CAM\n",
5147 (unsigned long long)mac_addr);
5148 return SUCCESS;
5149 }
5150 }
5151 if (i == config->max_mac_addr) {
5152 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5153 return FAILURE;
5154 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005155 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005156 do_s2io_copy_mac_addr(sp, i, mac_addr);
5157 return (do_s2io_add_mac(sp, mac_addr, i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005158}
5159
5160/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005161 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005162 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5163 * @info: pointer to the structure with parameters given by ethtool to set
5164 * link information.
5165 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005166 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005167 * the NIC.
5168 * Return value:
5169 * 0 on success.
5170*/
5171
5172static int s2io_ethtool_sset(struct net_device *dev,
5173 struct ethtool_cmd *info)
5174{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005175 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005176 if ((info->autoneg == AUTONEG_ENABLE) ||
5177 (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL))
5178 return -EINVAL;
5179 else {
5180 s2io_close(sp->dev);
5181 s2io_open(sp->dev);
5182 }
5183
5184 return 0;
5185}
5186
5187/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005188 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005189 * @sp : private member of the device structure, pointer to the
5190 * s2io_nic structure.
5191 * @info : pointer to the structure with parameters given by ethtool
5192 * to return link information.
5193 * Description:
5194 * Returns link specific information like speed, duplex etc.. to ethtool.
5195 * Return value :
5196 * return 0 on success.
5197 */
5198
5199static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5200{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005201 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005202 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5203 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5204 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005205
5206 /* info->transceiver */
5207 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005208
5209 if (netif_carrier_ok(sp->dev)) {
5210 info->speed = 10000;
5211 info->duplex = DUPLEX_FULL;
5212 } else {
5213 info->speed = -1;
5214 info->duplex = -1;
5215 }
5216
5217 info->autoneg = AUTONEG_DISABLE;
5218 return 0;
5219}
5220
5221/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005222 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5223 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005224 * s2io_nic structure.
5225 * @info : pointer to the structure with parameters given by ethtool to
5226 * return driver information.
5227 * Description:
5228 * Returns driver specefic information like name, version etc.. to ethtool.
5229 * Return value:
5230 * void
5231 */
5232
5233static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5234 struct ethtool_drvinfo *info)
5235{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005236 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005237
John W. Linvilledbc23092005-09-28 17:50:51 -04005238 strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
5239 strncpy(info->version, s2io_driver_version, sizeof(info->version));
5240 strncpy(info->fw_version, "", sizeof(info->fw_version));
5241 strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005242 info->regdump_len = XENA_REG_SPACE;
5243 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005244}
5245
5246/**
5247 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005248 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005249 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005250 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005251 * dumping the registers.
5252 * @reg_space: The input argumnet into which all the registers are dumped.
5253 * Description:
5254 * Dumps the entire register space of xFrame NIC into the user given
5255 * buffer area.
5256 * Return value :
5257 * void .
5258*/
5259
5260static void s2io_ethtool_gregs(struct net_device *dev,
5261 struct ethtool_regs *regs, void *space)
5262{
5263 int i;
5264 u64 reg;
5265 u8 *reg_space = (u8 *) space;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005266 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005267
5268 regs->len = XENA_REG_SPACE;
5269 regs->version = sp->pdev->subsystem_device;
5270
5271 for (i = 0; i < regs->len; i += 8) {
5272 reg = readq(sp->bar0 + i);
5273 memcpy((reg_space + i), &reg, 8);
5274 }
5275}
5276
5277/**
5278 * s2io_phy_id - timer function that alternates adapter LED.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005279 * @data : address of the private member of the device structure, which
Linus Torvalds1da177e2005-04-16 15:20:36 -07005280 * is a pointer to the s2io_nic structure, provided as an u32.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005281 * Description: This is actually the timer function that alternates the
5282 * adapter LED bit of the adapter control bit to set/reset every time on
5283 * invocation. The timer is set for 1/2 a second, hence tha NIC blinks
Linus Torvalds1da177e2005-04-16 15:20:36 -07005284 * once every second.
5285*/
5286static void s2io_phy_id(unsigned long data)
5287{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005288 struct s2io_nic *sp = (struct s2io_nic *) data;
5289 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005290 u64 val64 = 0;
5291 u16 subid;
5292
5293 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005294 if ((sp->device_type == XFRAME_II_DEVICE) ||
5295 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005296 val64 = readq(&bar0->gpio_control);
5297 val64 ^= GPIO_CTRL_GPIO_0;
5298 writeq(val64, &bar0->gpio_control);
5299 } else {
5300 val64 = readq(&bar0->adapter_control);
5301 val64 ^= ADAPTER_LED_ON;
5302 writeq(val64, &bar0->adapter_control);
5303 }
5304
5305 mod_timer(&sp->id_timer, jiffies + HZ / 2);
5306}
5307
5308/**
5309 * s2io_ethtool_idnic - To physically identify the nic on the system.
5310 * @sp : private member of the device structure, which is a pointer to the
5311 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005312 * @id : pointer to the structure with identification parameters given by
Linus Torvalds1da177e2005-04-16 15:20:36 -07005313 * ethtool.
5314 * Description: Used to physically identify the NIC on the system.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005315 * The Link LED will blink for a time specified by the user for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005316 * identification.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005317 * NOTE: The Link has to be Up to be able to blink the LED. Hence
Linus Torvalds1da177e2005-04-16 15:20:36 -07005318 * identification is possible only if it's link is up.
5319 * Return value:
5320 * int , returns 0 on success
5321 */
5322
5323static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
5324{
5325 u64 val64 = 0, last_gpio_ctrl_val;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005326 struct s2io_nic *sp = dev->priv;
5327 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005328 u16 subid;
5329
5330 subid = sp->pdev->subsystem_device;
5331 last_gpio_ctrl_val = readq(&bar0->gpio_control);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005332 if ((sp->device_type == XFRAME_I_DEVICE) &&
5333 ((subid & 0xFF) < 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005334 val64 = readq(&bar0->adapter_control);
5335 if (!(val64 & ADAPTER_CNTL_EN)) {
5336 printk(KERN_ERR
5337 "Adapter Link down, cannot blink LED\n");
5338 return -EFAULT;
5339 }
5340 }
5341 if (sp->id_timer.function == NULL) {
5342 init_timer(&sp->id_timer);
5343 sp->id_timer.function = s2io_phy_id;
5344 sp->id_timer.data = (unsigned long) sp;
5345 }
5346 mod_timer(&sp->id_timer, jiffies);
5347 if (data)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005348 msleep_interruptible(data * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005349 else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005350 msleep_interruptible(MAX_FLICKER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005351 del_timer_sync(&sp->id_timer);
5352
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005353 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005354 writeq(last_gpio_ctrl_val, &bar0->gpio_control);
5355 last_gpio_ctrl_val = readq(&bar0->gpio_control);
5356 }
5357
5358 return 0;
5359}
5360
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005361static void s2io_ethtool_gringparam(struct net_device *dev,
5362 struct ethtool_ringparam *ering)
5363{
5364 struct s2io_nic *sp = dev->priv;
5365 int i,tx_desc_count=0,rx_desc_count=0;
5366
5367 if (sp->rxd_mode == RXD_MODE_1)
5368 ering->rx_max_pending = MAX_RX_DESC_1;
5369 else if (sp->rxd_mode == RXD_MODE_3B)
5370 ering->rx_max_pending = MAX_RX_DESC_2;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005371
5372 ering->tx_max_pending = MAX_TX_DESC;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005373 for (i = 0 ; i < sp->config.tx_fifo_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005374 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005375
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005376 DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds);
5377 ering->tx_pending = tx_desc_count;
5378 rx_desc_count = 0;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04005379 for (i = 0 ; i < sp->config.rx_ring_num ; i++)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005380 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
Veena Paratb6627672007-07-23 02:39:43 -04005381
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005382 ering->rx_pending = rx_desc_count;
5383
5384 ering->rx_mini_max_pending = 0;
5385 ering->rx_mini_pending = 0;
5386 if(sp->rxd_mode == RXD_MODE_1)
5387 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5388 else if (sp->rxd_mode == RXD_MODE_3B)
5389 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5390 ering->rx_jumbo_pending = rx_desc_count;
5391}
5392
Linus Torvalds1da177e2005-04-16 15:20:36 -07005393/**
5394 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005395 * @sp : private member of the device structure, which is a pointer to the
5396 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005397 * @ep : pointer to the structure with pause parameters given by ethtool.
5398 * Description:
5399 * Returns the Pause frame generation and reception capability of the NIC.
5400 * Return value:
5401 * void
5402 */
5403static void s2io_ethtool_getpause_data(struct net_device *dev,
5404 struct ethtool_pauseparam *ep)
5405{
5406 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005407 struct s2io_nic *sp = dev->priv;
5408 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005409
5410 val64 = readq(&bar0->rmac_pause_cfg);
5411 if (val64 & RMAC_PAUSE_GEN_ENABLE)
5412 ep->tx_pause = TRUE;
5413 if (val64 & RMAC_PAUSE_RX_ENABLE)
5414 ep->rx_pause = TRUE;
5415 ep->autoneg = FALSE;
5416}
5417
5418/**
5419 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005420 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005421 * s2io_nic structure.
5422 * @ep : pointer to the structure with pause parameters given by ethtool.
5423 * Description:
5424 * It can be used to set or reset Pause frame generation or reception
5425 * support of the NIC.
5426 * Return value:
5427 * int, returns 0 on Success
5428 */
5429
5430static int s2io_ethtool_setpause_data(struct net_device *dev,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005431 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005432{
5433 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005434 struct s2io_nic *sp = dev->priv;
5435 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005436
5437 val64 = readq(&bar0->rmac_pause_cfg);
5438 if (ep->tx_pause)
5439 val64 |= RMAC_PAUSE_GEN_ENABLE;
5440 else
5441 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5442 if (ep->rx_pause)
5443 val64 |= RMAC_PAUSE_RX_ENABLE;
5444 else
5445 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5446 writeq(val64, &bar0->rmac_pause_cfg);
5447 return 0;
5448}
5449
5450/**
5451 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005452 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005453 * s2io_nic structure.
5454 * @off : offset at which the data must be written
5455 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005456 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005457 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005458 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005459 * read data.
5460 * NOTE: Will allow to read only part of the EEPROM visible through the
5461 * I2C bus.
5462 * Return value:
5463 * -1 on failure and 0 on success.
5464 */
5465
5466#define S2IO_DEV_ID 5
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005467static int read_eeprom(struct s2io_nic * sp, int off, u64 * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005468{
5469 int ret = -1;
5470 u32 exit_cnt = 0;
5471 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005472 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005473
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005474 if (sp->device_type == XFRAME_I_DEVICE) {
5475 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
5476 I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ |
5477 I2C_CONTROL_CNTL_START;
5478 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005479
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005480 while (exit_cnt < 5) {
5481 val64 = readq(&bar0->i2c_control);
5482 if (I2C_CONTROL_CNTL_END(val64)) {
5483 *data = I2C_CONTROL_GET_DATA(val64);
5484 ret = 0;
5485 break;
5486 }
5487 msleep(50);
5488 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005489 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005490 }
5491
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005492 if (sp->device_type == XFRAME_II_DEVICE) {
5493 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005494 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005495 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5496 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5497 val64 |= SPI_CONTROL_REQ;
5498 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5499 while (exit_cnt < 5) {
5500 val64 = readq(&bar0->spi_control);
5501 if (val64 & SPI_CONTROL_NACK) {
5502 ret = 1;
5503 break;
5504 } else if (val64 & SPI_CONTROL_DONE) {
5505 *data = readq(&bar0->spi_data);
5506 *data &= 0xffffff;
5507 ret = 0;
5508 break;
5509 }
5510 msleep(50);
5511 exit_cnt++;
5512 }
5513 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005514 return ret;
5515}
5516
5517/**
5518 * write_eeprom - actually writes the relevant part of the data value.
5519 * @sp : private member of the device structure, which is a pointer to the
5520 * s2io_nic structure.
5521 * @off : offset at which the data must be written
5522 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005523 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005524 * the Eeprom. (max of 3)
5525 * Description:
5526 * Actually writes the relevant part of the data value into the Eeprom
5527 * through the I2C bus.
5528 * Return value:
5529 * 0 on success, -1 on failure.
5530 */
5531
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005532static int write_eeprom(struct s2io_nic * sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005533{
5534 int exit_cnt = 0, ret = -1;
5535 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005536 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005537
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005538 if (sp->device_type == XFRAME_I_DEVICE) {
5539 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
5540 I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) |
5541 I2C_CONTROL_CNTL_START;
5542 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005543
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005544 while (exit_cnt < 5) {
5545 val64 = readq(&bar0->i2c_control);
5546 if (I2C_CONTROL_CNTL_END(val64)) {
5547 if (!(val64 & I2C_CONTROL_NACK))
5548 ret = 0;
5549 break;
5550 }
5551 msleep(50);
5552 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005553 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005554 }
5555
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005556 if (sp->device_type == XFRAME_II_DEVICE) {
5557 int write_cnt = (cnt == 8) ? 0 : cnt;
5558 writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data);
5559
5560 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005561 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005562 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5563 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5564 val64 |= SPI_CONTROL_REQ;
5565 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5566 while (exit_cnt < 5) {
5567 val64 = readq(&bar0->spi_control);
5568 if (val64 & SPI_CONTROL_NACK) {
5569 ret = 1;
5570 break;
5571 } else if (val64 & SPI_CONTROL_DONE) {
5572 ret = 0;
5573 break;
5574 }
5575 msleep(50);
5576 exit_cnt++;
5577 }
5578 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005579 return ret;
5580}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005581static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005582{
Ananda Rajub41477f2006-07-24 19:52:49 -04005583 u8 *vpd_data;
5584 u8 data;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005585 int i=0, cnt, fail = 0;
5586 int vpd_addr = 0x80;
5587
5588 if (nic->device_type == XFRAME_II_DEVICE) {
5589 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5590 vpd_addr = 0x80;
5591 }
5592 else {
5593 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5594 vpd_addr = 0x50;
5595 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005596 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005597
Ananda Rajub41477f2006-07-24 19:52:49 -04005598 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005599 if (!vpd_data) {
5600 nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005601 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005602 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04005603 nic->mac_control.stats_info->sw_stat.mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005604
Ananda Raju9dc737a2006-04-21 19:05:41 -04005605 for (i = 0; i < 256; i +=4 ) {
5606 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5607 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5608 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
5609 for (cnt = 0; cnt <5; cnt++) {
5610 msleep(2);
5611 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5612 if (data == 0x80)
5613 break;
5614 }
5615 if (cnt >= 5) {
5616 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5617 fail = 1;
5618 break;
5619 }
5620 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5621 (u32 *)&vpd_data[i]);
5622 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005623
5624 if(!fail) {
5625 /* read serial number of adapter */
5626 for (cnt = 0; cnt < 256; cnt++) {
5627 if ((vpd_data[cnt] == 'S') &&
5628 (vpd_data[cnt+1] == 'N') &&
5629 (vpd_data[cnt+2] < VPD_STRING_LEN)) {
5630 memset(nic->serial_num, 0, VPD_STRING_LEN);
5631 memcpy(nic->serial_num, &vpd_data[cnt + 3],
5632 vpd_data[cnt+2]);
5633 break;
5634 }
5635 }
5636 }
5637
5638 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005639 memset(nic->product_name, 0, vpd_data[1]);
5640 memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
5641 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005642 kfree(vpd_data);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04005643 nic->mac_control.stats_info->sw_stat.mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005644}
5645
Linus Torvalds1da177e2005-04-16 15:20:36 -07005646/**
5647 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5648 * @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 -07005649 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005650 * containing all relevant information.
5651 * @data_buf : user defined value to be written into Eeprom.
5652 * Description: Reads the values stored in the Eeprom at given offset
5653 * for a given length. Stores these values int the input argument data
5654 * buffer 'data_buf' and returns these to the caller (ethtool.)
5655 * Return value:
5656 * int 0 on success
5657 */
5658
5659static int s2io_ethtool_geeprom(struct net_device *dev,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005660 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005661{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005662 u32 i, valid;
5663 u64 data;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005664 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005665
5666 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5667
5668 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5669 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5670
5671 for (i = 0; i < eeprom->len; i += 4) {
5672 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5673 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5674 return -EFAULT;
5675 }
5676 valid = INV(data);
5677 memcpy((data_buf + i), &valid, 4);
5678 }
5679 return 0;
5680}
5681
5682/**
5683 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5684 * @sp : private member of the device structure, which is a pointer to the
5685 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005686 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005687 * containing all relevant information.
5688 * @data_buf ; user defined value to be written into Eeprom.
5689 * Description:
5690 * Tries to write the user provided value in the Eeprom, at the offset
5691 * given by the user.
5692 * Return value:
5693 * 0 on success, -EFAULT on failure.
5694 */
5695
5696static int s2io_ethtool_seeprom(struct net_device *dev,
5697 struct ethtool_eeprom *eeprom,
5698 u8 * data_buf)
5699{
5700 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005701 u64 valid = 0, data;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005702 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005703
5704 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5705 DBG_PRINT(ERR_DBG,
5706 "ETHTOOL_WRITE_EEPROM Err: Magic value ");
5707 DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n",
5708 eeprom->magic);
5709 return -EFAULT;
5710 }
5711
5712 while (len) {
5713 data = (u32) data_buf[cnt] & 0x000000FF;
5714 if (data) {
5715 valid = (u32) (data << 24);
5716 } else
5717 valid = data;
5718
5719 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5720 DBG_PRINT(ERR_DBG,
5721 "ETHTOOL_WRITE_EEPROM Err: Cannot ");
5722 DBG_PRINT(ERR_DBG,
5723 "write into the specified offset\n");
5724 return -EFAULT;
5725 }
5726 cnt++;
5727 len--;
5728 }
5729
5730 return 0;
5731}
5732
5733/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005734 * s2io_register_test - reads and writes into all clock domains.
5735 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005736 * s2io_nic structure.
5737 * @data : variable that returns the result of each of the test conducted b
5738 * by the driver.
5739 * Description:
5740 * Read and write into all clock domains. The NIC has 3 clock domains,
5741 * see that registers in all the three regions are accessible.
5742 * Return value:
5743 * 0 on success.
5744 */
5745
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005746static int s2io_register_test(struct s2io_nic * sp, uint64_t * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005747{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005748 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005749 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005750 int fail = 0;
5751
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005752 val64 = readq(&bar0->pif_rd_swapper_fb);
5753 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005754 fail = 1;
5755 DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n");
5756 }
5757
5758 val64 = readq(&bar0->rmac_pause_cfg);
5759 if (val64 != 0xc000ffff00000000ULL) {
5760 fail = 1;
5761 DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n");
5762 }
5763
5764 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005765 if (sp->device_type == XFRAME_II_DEVICE)
5766 exp_val = 0x0404040404040404ULL;
5767 else
5768 exp_val = 0x0808080808080808ULL;
5769 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005770 fail = 1;
5771 DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n");
5772 }
5773
5774 val64 = readq(&bar0->xgxs_efifo_cfg);
5775 if (val64 != 0x000000001923141EULL) {
5776 fail = 1;
5777 DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n");
5778 }
5779
5780 val64 = 0x5A5A5A5A5A5A5A5AULL;
5781 writeq(val64, &bar0->xmsi_data);
5782 val64 = readq(&bar0->xmsi_data);
5783 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5784 fail = 1;
5785 DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n");
5786 }
5787
5788 val64 = 0xA5A5A5A5A5A5A5A5ULL;
5789 writeq(val64, &bar0->xmsi_data);
5790 val64 = readq(&bar0->xmsi_data);
5791 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
5792 fail = 1;
5793 DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n");
5794 }
5795
5796 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005797 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005798}
5799
5800/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005801 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005802 * @sp : private member of the device structure, which is a pointer to the
5803 * s2io_nic structure.
5804 * @data:variable that returns the result of each of the test conducted by
5805 * the driver.
5806 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005807 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07005808 * register.
5809 * Return value:
5810 * 0 on success.
5811 */
5812
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005813static int s2io_eeprom_test(struct s2io_nic * sp, uint64_t * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005814{
5815 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005816 u64 ret_data, org_4F0, org_7F0;
5817 u8 saved_4F0 = 0, saved_7F0 = 0;
5818 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005819
5820 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005821 /* Note that SPI interface allows write access to all areas
5822 * of EEPROM. Hence doing all negative testing only for Xframe I.
5823 */
5824 if (sp->device_type == XFRAME_I_DEVICE)
5825 if (!write_eeprom(sp, 0, 0, 3))
5826 fail = 1;
5827
5828 /* Save current values at offsets 0x4F0 and 0x7F0 */
5829 if (!read_eeprom(sp, 0x4F0, &org_4F0))
5830 saved_4F0 = 1;
5831 if (!read_eeprom(sp, 0x7F0, &org_7F0))
5832 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005833
5834 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005835 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005836 fail = 1;
5837 if (read_eeprom(sp, 0x4F0, &ret_data))
5838 fail = 1;
5839
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005840 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08005841 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
5842 "Data written %llx Data read %llx\n",
5843 dev->name, (unsigned long long)0x12345,
5844 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005845 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005846 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005847
5848 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005849 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005850
5851 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005852 if (sp->device_type == XFRAME_I_DEVICE)
5853 if (!write_eeprom(sp, 0x07C, 0, 3))
5854 fail = 1;
5855
5856 /* Test Write Request at offset 0x7f0 */
5857 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
5858 fail = 1;
5859 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005860 fail = 1;
5861
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005862 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08005863 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
5864 "Data written %llx Data read %llx\n",
5865 dev->name, (unsigned long long)0x12345,
5866 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005867 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005868 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005869
5870 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005871 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005872
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005873 if (sp->device_type == XFRAME_I_DEVICE) {
5874 /* Test Write Error at offset 0x80 */
5875 if (!write_eeprom(sp, 0x080, 0, 3))
5876 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005877
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005878 /* Test Write Error at offset 0xfc */
5879 if (!write_eeprom(sp, 0x0FC, 0, 3))
5880 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005881
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005882 /* Test Write Error at offset 0x100 */
5883 if (!write_eeprom(sp, 0x100, 0, 3))
5884 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005885
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005886 /* Test Write Error at offset 4ec */
5887 if (!write_eeprom(sp, 0x4EC, 0, 3))
5888 fail = 1;
5889 }
5890
5891 /* Restore values at offsets 0x4F0 and 0x7F0 */
5892 if (saved_4F0)
5893 write_eeprom(sp, 0x4F0, org_4F0, 3);
5894 if (saved_7F0)
5895 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005896
5897 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005898 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005899}
5900
5901/**
5902 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005903 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005904 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005905 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07005906 * the driver.
5907 * Description:
5908 * This invokes the MemBist test of the card. We give around
5909 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005910 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005911 * Return value:
5912 * 0 on success and -1 on failure.
5913 */
5914
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005915static int s2io_bist_test(struct s2io_nic * sp, uint64_t * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005916{
5917 u8 bist = 0;
5918 int cnt = 0, ret = -1;
5919
5920 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
5921 bist |= PCI_BIST_START;
5922 pci_write_config_word(sp->pdev, PCI_BIST, bist);
5923
5924 while (cnt < 20) {
5925 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
5926 if (!(bist & PCI_BIST_START)) {
5927 *data = (bist & PCI_BIST_CODE_MASK);
5928 ret = 0;
5929 break;
5930 }
5931 msleep(100);
5932 cnt++;
5933 }
5934
5935 return ret;
5936}
5937
5938/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005939 * s2io-link_test - verifies the link state of the nic
5940 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005941 * s2io_nic structure.
5942 * @data: variable that returns the result of each of the test conducted by
5943 * the driver.
5944 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005945 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07005946 * argument 'data' appropriately.
5947 * Return value:
5948 * 0 on success.
5949 */
5950
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005951static int s2io_link_test(struct s2io_nic * sp, uint64_t * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005952{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005953 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005954 u64 val64;
5955
5956 val64 = readq(&bar0->adapter_status);
Ananda Rajuc92ca042006-04-21 19:18:03 -04005957 if(!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005958 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04005959 else
5960 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005961
Ananda Rajub41477f2006-07-24 19:52:49 -04005962 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005963}
5964
5965/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005966 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
5967 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005968 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005969 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07005970 * conducted by the driver.
5971 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005972 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07005973 * access to the RldRam chip on the NIC.
5974 * Return value:
5975 * 0 on success.
5976 */
5977
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005978static int s2io_rldram_test(struct s2io_nic * sp, uint64_t * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005979{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005980 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005981 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005982 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005983
5984 val64 = readq(&bar0->adapter_control);
5985 val64 &= ~ADAPTER_ECC_EN;
5986 writeq(val64, &bar0->adapter_control);
5987
5988 val64 = readq(&bar0->mc_rldram_test_ctrl);
5989 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005990 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005991
5992 val64 = readq(&bar0->mc_rldram_mrs);
5993 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
5994 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
5995
5996 val64 |= MC_RLDRAM_MRS_ENABLE;
5997 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
5998
5999 while (iteration < 2) {
6000 val64 = 0x55555555aaaa0000ULL;
6001 if (iteration == 1) {
6002 val64 ^= 0xFFFFFFFFFFFF0000ULL;
6003 }
6004 writeq(val64, &bar0->mc_rldram_test_d0);
6005
6006 val64 = 0xaaaa5a5555550000ULL;
6007 if (iteration == 1) {
6008 val64 ^= 0xFFFFFFFFFFFF0000ULL;
6009 }
6010 writeq(val64, &bar0->mc_rldram_test_d1);
6011
6012 val64 = 0x55aaaaaaaa5a0000ULL;
6013 if (iteration == 1) {
6014 val64 ^= 0xFFFFFFFFFFFF0000ULL;
6015 }
6016 writeq(val64, &bar0->mc_rldram_test_d2);
6017
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006018 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006019 writeq(val64, &bar0->mc_rldram_test_add);
6020
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006021 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE |
6022 MC_RLDRAM_TEST_GO;
6023 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006024
6025 for (cnt = 0; cnt < 5; cnt++) {
6026 val64 = readq(&bar0->mc_rldram_test_ctrl);
6027 if (val64 & MC_RLDRAM_TEST_DONE)
6028 break;
6029 msleep(200);
6030 }
6031
6032 if (cnt == 5)
6033 break;
6034
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006035 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6036 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006037
6038 for (cnt = 0; cnt < 5; cnt++) {
6039 val64 = readq(&bar0->mc_rldram_test_ctrl);
6040 if (val64 & MC_RLDRAM_TEST_DONE)
6041 break;
6042 msleep(500);
6043 }
6044
6045 if (cnt == 5)
6046 break;
6047
6048 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006049 if (!(val64 & MC_RLDRAM_TEST_PASS))
6050 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051
6052 iteration++;
6053 }
6054
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006055 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006056
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006057 /* Bring the adapter out of test mode */
6058 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6059
6060 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006061}
6062
6063/**
6064 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6065 * @sp : private member of the device structure, which is a pointer to the
6066 * s2io_nic structure.
6067 * @ethtest : pointer to a ethtool command specific structure that will be
6068 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006069 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006070 * conducted by the driver.
6071 * Description:
6072 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6073 * the health of the card.
6074 * Return value:
6075 * void
6076 */
6077
6078static void s2io_ethtool_test(struct net_device *dev,
6079 struct ethtool_test *ethtest,
6080 uint64_t * data)
6081{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006082 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006083 int orig_state = netif_running(sp->dev);
6084
6085 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6086 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006087 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006088 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006089
6090 if (s2io_register_test(sp, &data[0]))
6091 ethtest->flags |= ETH_TEST_FL_FAILED;
6092
6093 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006094
6095 if (s2io_rldram_test(sp, &data[3]))
6096 ethtest->flags |= ETH_TEST_FL_FAILED;
6097
6098 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006099
6100 if (s2io_eeprom_test(sp, &data[1]))
6101 ethtest->flags |= ETH_TEST_FL_FAILED;
6102
6103 if (s2io_bist_test(sp, &data[4]))
6104 ethtest->flags |= ETH_TEST_FL_FAILED;
6105
6106 if (orig_state)
6107 s2io_open(sp->dev);
6108
6109 data[2] = 0;
6110 } else {
6111 /* Online Tests. */
6112 if (!orig_state) {
6113 DBG_PRINT(ERR_DBG,
6114 "%s: is not up, cannot run test\n",
6115 dev->name);
6116 data[0] = -1;
6117 data[1] = -1;
6118 data[2] = -1;
6119 data[3] = -1;
6120 data[4] = -1;
6121 }
6122
6123 if (s2io_link_test(sp, &data[2]))
6124 ethtest->flags |= ETH_TEST_FL_FAILED;
6125
6126 data[0] = 0;
6127 data[1] = 0;
6128 data[3] = 0;
6129 data[4] = 0;
6130 }
6131}
6132
6133static void s2io_get_ethtool_stats(struct net_device *dev,
6134 struct ethtool_stats *estats,
6135 u64 * tmp_stats)
6136{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006137 int i = 0, k;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006138 struct s2io_nic *sp = dev->priv;
6139 struct stat_block *stat_info = sp->mac_control.stats_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006140
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006141 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006142 tmp_stats[i++] =
6143 (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 |
6144 le32_to_cpu(stat_info->tmac_frms);
6145 tmp_stats[i++] =
6146 (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 |
6147 le32_to_cpu(stat_info->tmac_data_octets);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006148 tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006149 tmp_stats[i++] =
6150 (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 |
6151 le32_to_cpu(stat_info->tmac_mcst_frms);
6152 tmp_stats[i++] =
6153 (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 |
6154 le32_to_cpu(stat_info->tmac_bcst_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006155 tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006156 tmp_stats[i++] =
6157 (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 |
6158 le32_to_cpu(stat_info->tmac_ttl_octets);
6159 tmp_stats[i++] =
6160 (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 |
6161 le32_to_cpu(stat_info->tmac_ucst_frms);
6162 tmp_stats[i++] =
6163 (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 |
6164 le32_to_cpu(stat_info->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006165 tmp_stats[i++] =
6166 (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 |
6167 le32_to_cpu(stat_info->tmac_any_err_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006168 tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006169 tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006170 tmp_stats[i++] =
6171 (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 |
6172 le32_to_cpu(stat_info->tmac_vld_ip);
6173 tmp_stats[i++] =
6174 (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 |
6175 le32_to_cpu(stat_info->tmac_drop_ip);
6176 tmp_stats[i++] =
6177 (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 |
6178 le32_to_cpu(stat_info->tmac_icmp);
6179 tmp_stats[i++] =
6180 (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 |
6181 le32_to_cpu(stat_info->tmac_rst_tcp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006182 tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006183 tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 |
6184 le32_to_cpu(stat_info->tmac_udp);
6185 tmp_stats[i++] =
6186 (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 |
6187 le32_to_cpu(stat_info->rmac_vld_frms);
6188 tmp_stats[i++] =
6189 (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 |
6190 le32_to_cpu(stat_info->rmac_data_octets);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006191 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms);
6192 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006193 tmp_stats[i++] =
6194 (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 |
6195 le32_to_cpu(stat_info->rmac_vld_mcst_frms);
6196 tmp_stats[i++] =
6197 (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 |
6198 le32_to_cpu(stat_info->rmac_vld_bcst_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006199 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006200 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006201 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms);
6202 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006203 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms);
6204 tmp_stats[i++] =
6205 (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 |
6206 le32_to_cpu(stat_info->rmac_ttl_octets);
6207 tmp_stats[i++] =
6208 (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow)
6209 << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms);
6210 tmp_stats[i++] =
6211 (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow)
6212 << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006213 tmp_stats[i++] =
6214 (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 |
6215 le32_to_cpu(stat_info->rmac_discarded_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006216 tmp_stats[i++] =
6217 (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow)
6218 << 32 | le32_to_cpu(stat_info->rmac_drop_events);
6219 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets);
6220 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006221 tmp_stats[i++] =
6222 (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 |
6223 le32_to_cpu(stat_info->rmac_usized_frms);
6224 tmp_stats[i++] =
6225 (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 |
6226 le32_to_cpu(stat_info->rmac_osized_frms);
6227 tmp_stats[i++] =
6228 (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 |
6229 le32_to_cpu(stat_info->rmac_frag_frms);
6230 tmp_stats[i++] =
6231 (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 |
6232 le32_to_cpu(stat_info->rmac_jabber_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006233 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms);
6234 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms);
6235 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms);
6236 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms);
6237 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms);
6238 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms);
6239 tmp_stats[i++] =
6240 (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 |
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006241 le32_to_cpu(stat_info->rmac_ip);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006242 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets);
6243 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006244 tmp_stats[i++] =
6245 (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 |
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006246 le32_to_cpu(stat_info->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006247 tmp_stats[i++] =
6248 (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 |
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006249 le32_to_cpu(stat_info->rmac_icmp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006250 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006251 tmp_stats[i++] =
6252 (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 |
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006253 le32_to_cpu(stat_info->rmac_udp);
6254 tmp_stats[i++] =
6255 (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 |
6256 le32_to_cpu(stat_info->rmac_err_drp_udp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006257 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym);
6258 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0);
6259 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1);
6260 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2);
6261 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3);
6262 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4);
6263 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5);
6264 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6);
6265 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7);
6266 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0);
6267 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1);
6268 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2);
6269 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3);
6270 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4);
6271 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5);
6272 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6);
6273 tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006274 tmp_stats[i++] =
6275 (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 |
6276 le32_to_cpu(stat_info->rmac_pause_cnt);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006277 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt);
6278 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006279 tmp_stats[i++] =
6280 (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 |
6281 le32_to_cpu(stat_info->rmac_accepted_ip);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006282 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006283 tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt);
6284 tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt);
6285 tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt);
6286 tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt);
6287 tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt);
6288 tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt);
6289 tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt);
6290 tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt);
6291 tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt);
6292 tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt);
6293 tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt);
6294 tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt);
6295 tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt);
6296 tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt);
6297 tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt);
6298 tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt);
6299 tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt);
6300 tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006301
6302 /* Enhanced statistics exist only for Hercules */
6303 if(sp->device_type == XFRAME_II_DEVICE) {
6304 tmp_stats[i++] =
6305 le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms);
6306 tmp_stats[i++] =
6307 le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms);
6308 tmp_stats[i++] =
6309 le64_to_cpu(stat_info->rmac_ttl_8192_max_frms);
6310 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms);
6311 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms);
6312 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms);
6313 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms);
6314 tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms);
6315 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard);
6316 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard);
6317 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard);
6318 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard);
6319 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard);
6320 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard);
6321 tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard);
6322 tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt);
6323 }
6324
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006325 tmp_stats[i++] = 0;
6326 tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs;
6327 tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006328 tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt;
6329 tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt;
6330 tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt;
6331 tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006332 for (k = 0; k < MAX_RX_RINGS; k++)
6333 tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt[k];
Ananda Rajubd1034f2006-04-21 19:20:22 -04006334 tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high;
6335 tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low;
6336 tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high;
6337 tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low;
6338 tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high;
6339 tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low;
6340 tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high;
6341 tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low;
6342 tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high;
6343 tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low;
6344 tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high;
6345 tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05006346 tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt;
6347 tmp_stats[i++] = stat_info->sw_stat.sending_both;
6348 tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts;
6349 tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts;
Andrew Mortonfe931392006-02-03 01:45:12 -08006350 if (stat_info->sw_stat.num_aggregations) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04006351 u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated;
6352 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006353 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006354 * Since 64-bit divide does not work on all platforms,
6355 * do repeated subtraction.
6356 */
6357 while (tmp >= stat_info->sw_stat.num_aggregations) {
6358 tmp -= stat_info->sw_stat.num_aggregations;
6359 count++;
6360 }
6361 tmp_stats[i++] = count;
Andrew Mortonfe931392006-02-03 01:45:12 -08006362 }
Ananda Rajubd1034f2006-04-21 19:20:22 -04006363 else
6364 tmp_stats[i++] = 0;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04006365 tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt;
Veena Parat491abf22007-07-23 02:37:14 -04006366 tmp_stats[i++] = stat_info->sw_stat.pci_map_fail_cnt;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04006367 tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006368 tmp_stats[i++] = stat_info->sw_stat.mem_allocated;
6369 tmp_stats[i++] = stat_info->sw_stat.mem_freed;
6370 tmp_stats[i++] = stat_info->sw_stat.link_up_cnt;
6371 tmp_stats[i++] = stat_info->sw_stat.link_down_cnt;
6372 tmp_stats[i++] = stat_info->sw_stat.link_up_time;
6373 tmp_stats[i++] = stat_info->sw_stat.link_down_time;
6374
6375 tmp_stats[i++] = stat_info->sw_stat.tx_buf_abort_cnt;
6376 tmp_stats[i++] = stat_info->sw_stat.tx_desc_abort_cnt;
6377 tmp_stats[i++] = stat_info->sw_stat.tx_parity_err_cnt;
6378 tmp_stats[i++] = stat_info->sw_stat.tx_link_loss_cnt;
6379 tmp_stats[i++] = stat_info->sw_stat.tx_list_proc_err_cnt;
6380
6381 tmp_stats[i++] = stat_info->sw_stat.rx_parity_err_cnt;
6382 tmp_stats[i++] = stat_info->sw_stat.rx_abort_cnt;
6383 tmp_stats[i++] = stat_info->sw_stat.rx_parity_abort_cnt;
6384 tmp_stats[i++] = stat_info->sw_stat.rx_rda_fail_cnt;
6385 tmp_stats[i++] = stat_info->sw_stat.rx_unkn_prot_cnt;
6386 tmp_stats[i++] = stat_info->sw_stat.rx_fcs_err_cnt;
6387 tmp_stats[i++] = stat_info->sw_stat.rx_buf_size_err_cnt;
6388 tmp_stats[i++] = stat_info->sw_stat.rx_rxd_corrupt_cnt;
6389 tmp_stats[i++] = stat_info->sw_stat.rx_unkn_err_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006390 tmp_stats[i++] = stat_info->sw_stat.tda_err_cnt;
6391 tmp_stats[i++] = stat_info->sw_stat.pfc_err_cnt;
6392 tmp_stats[i++] = stat_info->sw_stat.pcc_err_cnt;
6393 tmp_stats[i++] = stat_info->sw_stat.tti_err_cnt;
6394 tmp_stats[i++] = stat_info->sw_stat.tpa_err_cnt;
6395 tmp_stats[i++] = stat_info->sw_stat.sm_err_cnt;
6396 tmp_stats[i++] = stat_info->sw_stat.lso_err_cnt;
6397 tmp_stats[i++] = stat_info->sw_stat.mac_tmac_err_cnt;
6398 tmp_stats[i++] = stat_info->sw_stat.mac_rmac_err_cnt;
6399 tmp_stats[i++] = stat_info->sw_stat.xgxs_txgxs_err_cnt;
6400 tmp_stats[i++] = stat_info->sw_stat.xgxs_rxgxs_err_cnt;
6401 tmp_stats[i++] = stat_info->sw_stat.rc_err_cnt;
6402 tmp_stats[i++] = stat_info->sw_stat.prc_pcix_err_cnt;
6403 tmp_stats[i++] = stat_info->sw_stat.rpa_err_cnt;
6404 tmp_stats[i++] = stat_info->sw_stat.rda_err_cnt;
6405 tmp_stats[i++] = stat_info->sw_stat.rti_err_cnt;
6406 tmp_stats[i++] = stat_info->sw_stat.mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006407}
6408
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006409static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006410{
6411 return (XENA_REG_SPACE);
6412}
6413
6414
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006415static u32 s2io_ethtool_get_rx_csum(struct net_device * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006416{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006417 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006418
6419 return (sp->rx_csum);
6420}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006421
6422static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006423{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006424 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006425
6426 if (data)
6427 sp->rx_csum = 1;
6428 else
6429 sp->rx_csum = 0;
6430
6431 return 0;
6432}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006433
6434static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006435{
6436 return (XENA_EEPROM_SPACE);
6437}
6438
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006439static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006440{
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006441 struct s2io_nic *sp = dev->priv;
6442
6443 switch (sset) {
6444 case ETH_SS_TEST:
6445 return S2IO_TEST_LEN;
6446 case ETH_SS_STATS:
6447 switch(sp->device_type) {
6448 case XFRAME_I_DEVICE:
6449 return XFRAME_I_STAT_LEN;
6450 case XFRAME_II_DEVICE:
6451 return XFRAME_II_STAT_LEN;
6452 default:
6453 return 0;
6454 }
6455 default:
6456 return -EOPNOTSUPP;
6457 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006458}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006459
6460static void s2io_ethtool_get_strings(struct net_device *dev,
6461 u32 stringset, u8 * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006462{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006463 int stat_size = 0;
6464 struct s2io_nic *sp = dev->priv;
6465
Linus Torvalds1da177e2005-04-16 15:20:36 -07006466 switch (stringset) {
6467 case ETH_SS_TEST:
6468 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6469 break;
6470 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006471 stat_size = sizeof(ethtool_xena_stats_keys);
6472 memcpy(data, &ethtool_xena_stats_keys,stat_size);
6473 if(sp->device_type == XFRAME_II_DEVICE) {
6474 memcpy(data + stat_size,
6475 &ethtool_enhanced_stats_keys,
6476 sizeof(ethtool_enhanced_stats_keys));
6477 stat_size += sizeof(ethtool_enhanced_stats_keys);
6478 }
6479
6480 memcpy(data + stat_size, &ethtool_driver_stats_keys,
6481 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006482 }
6483}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006484
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006485static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006486{
6487 if (data)
6488 dev->features |= NETIF_F_IP_CSUM;
6489 else
6490 dev->features &= ~NETIF_F_IP_CSUM;
6491
6492 return 0;
6493}
6494
Ananda Raju75c30b12006-07-24 19:55:09 -04006495static u32 s2io_ethtool_op_get_tso(struct net_device *dev)
6496{
6497 return (dev->features & NETIF_F_TSO) != 0;
6498}
6499static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data)
6500{
6501 if (data)
6502 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
6503 else
6504 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
6505
6506 return 0;
6507}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006508
Jeff Garzik7282d492006-09-13 14:30:00 -04006509static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006510 .get_settings = s2io_ethtool_gset,
6511 .set_settings = s2io_ethtool_sset,
6512 .get_drvinfo = s2io_ethtool_gdrvinfo,
6513 .get_regs_len = s2io_ethtool_get_regs_len,
6514 .get_regs = s2io_ethtool_gregs,
6515 .get_link = ethtool_op_get_link,
6516 .get_eeprom_len = s2io_get_eeprom_len,
6517 .get_eeprom = s2io_ethtool_geeprom,
6518 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006519 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006520 .get_pauseparam = s2io_ethtool_getpause_data,
6521 .set_pauseparam = s2io_ethtool_setpause_data,
6522 .get_rx_csum = s2io_ethtool_get_rx_csum,
6523 .set_rx_csum = s2io_ethtool_set_rx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006524 .set_tx_csum = s2io_ethtool_op_set_tx_csum,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006525 .set_sg = ethtool_op_set_sg,
Ananda Raju75c30b12006-07-24 19:55:09 -04006526 .get_tso = s2io_ethtool_op_get_tso,
6527 .set_tso = s2io_ethtool_op_set_tso,
Ananda Rajufed5ecc2005-11-14 15:25:08 -05006528 .set_ufo = ethtool_op_set_ufo,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006529 .self_test = s2io_ethtool_test,
6530 .get_strings = s2io_ethtool_get_strings,
6531 .phys_id = s2io_ethtool_idnic,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006532 .get_ethtool_stats = s2io_get_ethtool_stats,
6533 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006534};
6535
6536/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006537 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006538 * @dev : Device pointer.
6539 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6540 * a proprietary structure used to pass information to the driver.
6541 * @cmd : This is used to distinguish between the different commands that
6542 * can be passed to the IOCTL functions.
6543 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006544 * Currently there are no special functionality supported in IOCTL, hence
6545 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006546 */
6547
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006548static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006549{
6550 return -EOPNOTSUPP;
6551}
6552
6553/**
6554 * s2io_change_mtu - entry point to change MTU size for the device.
6555 * @dev : device pointer.
6556 * @new_mtu : the new MTU size for the device.
6557 * Description: A driver entry point to change MTU size for the device.
6558 * Before changing the MTU the device must be stopped.
6559 * Return value:
6560 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6561 * file on failure.
6562 */
6563
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006564static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006565{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006566 struct s2io_nic *sp = dev->priv;
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006567 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006568
6569 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
6570 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n",
6571 dev->name);
6572 return -EPERM;
6573 }
6574
Linus Torvalds1da177e2005-04-16 15:20:36 -07006575 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006576 if (netif_running(dev)) {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006577 s2io_card_down(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006578 netif_stop_queue(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006579 ret = s2io_card_up(sp);
6580 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006581 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
6582 __FUNCTION__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006583 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006584 }
6585 if (netif_queue_stopped(dev))
6586 netif_wake_queue(dev);
6587 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006588 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006589 u64 val64 = new_mtu;
6590
6591 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6592 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006593
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006594 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006595}
6596
6597/**
6598 * s2io_tasklet - Bottom half of the ISR.
6599 * @dev_adr : address of the device structure in dma_addr_t format.
6600 * Description:
6601 * This is the tasklet or the bottom half of the ISR. This is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006602 * an extension of the ISR which is scheduled by the scheduler to be run
Linus Torvalds1da177e2005-04-16 15:20:36 -07006603 * when the load on the CPU is low. All low priority tasks of the ISR can
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006604 * be pushed into the tasklet. For now the tasklet is used only to
Linus Torvalds1da177e2005-04-16 15:20:36 -07006605 * replenish the Rx buffers in the Rx buffer descriptors.
6606 * Return value:
6607 * void.
6608 */
6609
6610static void s2io_tasklet(unsigned long dev_addr)
6611{
6612 struct net_device *dev = (struct net_device *) dev_addr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006613 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006614 int i, ret;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006615 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006616 struct config_param *config;
6617
6618 mac_control = &sp->mac_control;
6619 config = &sp->config;
6620
6621 if (!TASKLET_IN_USE) {
6622 for (i = 0; i < config->rx_ring_num; i++) {
6623 ret = fill_rx_buffers(sp, i);
6624 if (ret == -ENOMEM) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08006625 DBG_PRINT(INFO_DBG, "%s: Out of ",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006626 dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006627 DBG_PRINT(INFO_DBG, "memory in tasklet\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07006628 break;
6629 } else if (ret == -EFILL) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08006630 DBG_PRINT(INFO_DBG,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006631 "%s: Rx Ring %d is full\n",
6632 dev->name, i);
6633 break;
6634 }
6635 }
6636 clear_bit(0, (&sp->tasklet_status));
6637 }
6638}
6639
6640/**
6641 * s2io_set_link - Set the LInk status
6642 * @data: long pointer to device private structue
6643 * Description: Sets the link status for the adapter
6644 */
6645
David Howellsc4028952006-11-22 14:57:56 +00006646static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006647{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006648 struct s2io_nic *nic = container_of(work, struct s2io_nic, set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006649 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006650 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006651 register u64 val64;
6652 u16 subid;
6653
Francois Romieu22747d62007-02-15 23:37:50 +01006654 rtnl_lock();
6655
6656 if (!netif_running(dev))
6657 goto out_unlock;
6658
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006659 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006660 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006661 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006662 }
6663
6664 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006665 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6666 /*
6667 * Allow a small delay for the NICs self initiated
6668 * cleanup to complete.
6669 */
6670 msleep(100);
6671 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006672
6673 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006674 if (LINK_IS_UP(val64)) {
6675 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6676 if (verify_xena_quiescence(nic)) {
6677 val64 = readq(&bar0->adapter_control);
6678 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006679 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006680 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
6681 nic->device_type, subid)) {
6682 val64 = readq(&bar0->gpio_control);
6683 val64 |= GPIO_CTRL_GPIO_0;
6684 writeq(val64, &bar0->gpio_control);
6685 val64 = readq(&bar0->gpio_control);
6686 } else {
6687 val64 |= ADAPTER_LED_ON;
6688 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006689 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006690 nic->device_enabled_once = TRUE;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006691 } else {
6692 DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name);
6693 DBG_PRINT(ERR_DBG, "device is not Quiescent\n");
6694 netif_stop_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006695 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006696 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006697 val64 = readq(&bar0->adapter_control);
6698 val64 |= ADAPTER_LED_ON;
6699 writeq(val64, &bar0->adapter_control);
6700 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006701 } else {
6702 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6703 subid)) {
6704 val64 = readq(&bar0->gpio_control);
6705 val64 &= ~GPIO_CTRL_GPIO_0;
6706 writeq(val64, &bar0->gpio_control);
6707 val64 = readq(&bar0->gpio_control);
6708 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006709 /* turn off LED */
6710 val64 = readq(&bar0->adapter_control);
6711 val64 = val64 &(~ADAPTER_LED_ON);
6712 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006713 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006714 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006715 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006716
6717out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006718 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006719}
6720
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006721static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
6722 struct buffAdd *ba,
6723 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6724 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006725{
6726 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006727 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006728
6729 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006730 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006731 /* allocate skb */
6732 if (*skb) {
6733 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6734 /*
6735 * As Rx frame are not going to be processed,
6736 * using same mapped address for the Rxd
6737 * buffer pointer
6738 */
Veena Parat6d517a22007-07-23 02:20:51 -04006739 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006740 } else {
6741 *skb = dev_alloc_skb(size);
6742 if (!(*skb)) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08006743 DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04006744 DBG_PRINT(INFO_DBG, "memory to allocate ");
6745 DBG_PRINT(INFO_DBG, "1 buf mode SKBs\n");
6746 sp->mac_control.stats_info->sw_stat. \
6747 mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006748 return -ENOMEM ;
6749 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04006750 sp->mac_control.stats_info->sw_stat.mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006751 += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006752 /* storing the mapped addr in a temp variable
6753 * such it will be used for next rxd whose
6754 * Host Control is NULL
6755 */
Veena Parat6d517a22007-07-23 02:20:51 -04006756 rxdp1->Buffer0_ptr = *temp0 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006757 pci_map_single( sp->pdev, (*skb)->data,
6758 size - NET_IP_ALIGN,
6759 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006760 if( (rxdp1->Buffer0_ptr == 0) ||
6761 (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) {
6762 goto memalloc_failed;
6763 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006764 rxdp->Host_Control = (unsigned long) (*skb);
6765 }
6766 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006767 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006768 /* Two buffer Mode */
6769 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006770 rxdp3->Buffer2_ptr = *temp2;
6771 rxdp3->Buffer0_ptr = *temp0;
6772 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006773 } else {
6774 *skb = dev_alloc_skb(size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006775 if (!(*skb)) {
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04006776 DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name);
6777 DBG_PRINT(INFO_DBG, "memory to allocate ");
6778 DBG_PRINT(INFO_DBG, "2 buf mode SKBs\n");
6779 sp->mac_control.stats_info->sw_stat. \
6780 mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006781 return -ENOMEM;
6782 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04006783 sp->mac_control.stats_info->sw_stat.mem_allocated
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006784 += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006785 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006786 pci_map_single(sp->pdev, (*skb)->data,
6787 dev->mtu + 4,
6788 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006789 if( (rxdp3->Buffer2_ptr == 0) ||
6790 (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) {
6791 goto memalloc_failed;
6792 }
Veena Parat6d517a22007-07-23 02:20:51 -04006793 rxdp3->Buffer0_ptr = *temp0 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006794 pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN,
6795 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006796 if( (rxdp3->Buffer0_ptr == 0) ||
6797 (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) {
6798 pci_unmap_single (sp->pdev,
Al Viro3e847422007-08-02 19:21:30 +01006799 (dma_addr_t)rxdp3->Buffer2_ptr,
Veena Parat491abf22007-07-23 02:37:14 -04006800 dev->mtu + 4, PCI_DMA_FROMDEVICE);
6801 goto memalloc_failed;
6802 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006803 rxdp->Host_Control = (unsigned long) (*skb);
6804
6805 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04006806 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006807 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Ananda Raju5d3213c2006-04-21 19:23:26 -04006808 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006809 if( (rxdp3->Buffer1_ptr == 0) ||
6810 (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) {
6811 pci_unmap_single (sp->pdev,
Al Viro3e847422007-08-02 19:21:30 +01006812 (dma_addr_t)rxdp3->Buffer0_ptr,
6813 BUF0_LEN, PCI_DMA_FROMDEVICE);
6814 pci_unmap_single (sp->pdev,
6815 (dma_addr_t)rxdp3->Buffer2_ptr,
Veena Parat491abf22007-07-23 02:37:14 -04006816 dev->mtu + 4, PCI_DMA_FROMDEVICE);
6817 goto memalloc_failed;
6818 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006819 }
6820 }
6821 return 0;
Veena Parat491abf22007-07-23 02:37:14 -04006822 memalloc_failed:
6823 stats->pci_map_fail_cnt++;
6824 stats->mem_freed += (*skb)->truesize;
6825 dev_kfree_skb(*skb);
6826 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006827}
Veena Parat491abf22007-07-23 02:37:14 -04006828
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006829static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
6830 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006831{
6832 struct net_device *dev = sp->dev;
6833 if (sp->rxd_mode == RXD_MODE_1) {
6834 rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN);
6835 } else if (sp->rxd_mode == RXD_MODE_3B) {
6836 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
6837 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
6838 rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006839 }
6840}
6841
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006842static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006843{
6844 int i, j, k, blk_cnt = 0, size;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006845 struct mac_info * mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006846 struct config_param *config = &sp->config;
6847 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006848 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006849 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006850 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006851 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
6852
6853 /* Calculate the size based on ring mode */
6854 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
6855 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
6856 if (sp->rxd_mode == RXD_MODE_1)
6857 size += NET_IP_ALIGN;
6858 else if (sp->rxd_mode == RXD_MODE_3B)
6859 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006860
6861 for (i = 0; i < config->rx_ring_num; i++) {
6862 blk_cnt = config->rx_cfg[i].num_rxd /
6863 (rxd_count[sp->rxd_mode] +1);
6864
6865 for (j = 0; j < blk_cnt; j++) {
6866 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
6867 rxdp = mac_control->rings[i].
6868 rx_blocks[j].rxds[k].virt_addr;
Veena Parat6d517a22007-07-23 02:20:51 -04006869 if(sp->rxd_mode == RXD_MODE_3B)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006870 ba = &mac_control->rings[i].ba[j][k];
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05006871 if (set_rxd_buffer_pointer(sp, rxdp, ba,
Ananda Raju5d3213c2006-04-21 19:23:26 -04006872 &skb,(u64 *)&temp0_64,
6873 (u64 *)&temp1_64,
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05006874 (u64 *)&temp2_64,
6875 size) == ENOMEM) {
6876 return 0;
6877 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006878
6879 set_rxd_buffer_size(sp, rxdp, size);
6880 wmb();
6881 /* flip the Ownership bit to Hardware */
6882 rxdp->Control_1 |= RXD_OWN_XENA;
6883 }
6884 }
6885 }
6886 return 0;
6887
6888}
6889
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006890static int s2io_add_isr(struct s2io_nic * sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006891{
6892 int ret = 0;
6893 struct net_device *dev = sp->dev;
6894 int err = 0;
6895
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006896 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006897 ret = s2io_enable_msi_x(sp);
6898 if (ret) {
6899 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006900 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006901 }
6902
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006903 /* Store the values of the MSIX table in the struct s2io_nic structure */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006904 store_xmsi_data(sp);
6905
6906 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006907 if (sp->config.intr_type == MSI_X) {
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05006908 int i, msix_tx_cnt=0,msix_rx_cnt=0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006909
6910 for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) {
6911 if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) {
6912 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
6913 dev->name, i);
6914 err = request_irq(sp->entries[i].vector,
6915 s2io_msix_fifo_handle, 0, sp->desc[i],
6916 sp->s2io_entries[i].arg);
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05006917 /* If either data or addr is zero print it */
6918 if(!(sp->msix_info[i].addr &&
6919 sp->msix_info[i].data)) {
Joe Perches24500222007-11-19 17:48:28 -08006920 DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx "
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05006921 "Data:0x%lx\n",sp->desc[i],
6922 (unsigned long long)
6923 sp->msix_info[i].addr,
6924 (unsigned long)
6925 ntohl(sp->msix_info[i].data));
6926 } else {
6927 msix_tx_cnt++;
6928 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006929 } else {
6930 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
6931 dev->name, i);
6932 err = request_irq(sp->entries[i].vector,
6933 s2io_msix_ring_handle, 0, sp->desc[i],
6934 sp->s2io_entries[i].arg);
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05006935 /* If either data or addr is zero print it */
6936 if(!(sp->msix_info[i].addr &&
6937 sp->msix_info[i].data)) {
Joe Perches24500222007-11-19 17:48:28 -08006938 DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx "
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05006939 "Data:0x%lx\n",sp->desc[i],
6940 (unsigned long long)
6941 sp->msix_info[i].addr,
6942 (unsigned long)
6943 ntohl(sp->msix_info[i].data));
6944 } else {
6945 msix_rx_cnt++;
6946 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006947 }
6948 if (err) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08006949 remove_msix_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006950 DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration "
6951 "failed\n", dev->name, i);
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08006952 DBG_PRINT(ERR_DBG, "%s: defaulting to INTA\n",
6953 dev->name);
6954 sp->config.intr_type = INTA;
6955 break;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006956 }
6957 sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS;
6958 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08006959 if (!err) {
6960 printk(KERN_INFO "MSI-X-TX %d entries enabled\n",
6961 msix_tx_cnt);
6962 printk(KERN_INFO "MSI-X-RX %d entries enabled\n",
6963 msix_rx_cnt);
6964 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006965 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006966 if (sp->config.intr_type == INTA) {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006967 err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED,
6968 sp->name, dev);
6969 if (err) {
6970 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
6971 dev->name);
6972 return -1;
6973 }
6974 }
6975 return 0;
6976}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006977static void s2io_rem_isr(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006978{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08006979 if (sp->config.intr_type == MSI_X)
6980 remove_msix_isr(sp);
6981 else
6982 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006983}
6984
Linas Vepstasd796fdb2007-05-14 18:37:30 -05006985static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006986{
6987 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006988 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006989 unsigned long flags;
6990 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05006991 struct config_param *config;
6992 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006993
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006994 if (!is_s2io_card_up(sp))
6995 return;
6996
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006997 del_timer_sync(&sp->alarm_timer);
6998 /* If s2io_set_link task is executing, wait till it completes. */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006999 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state))) {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007000 msleep(50);
7001 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007002 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007003
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007004 /* Disable napi */
7005 if (config->napi)
7006 napi_disable(&sp->napi);
7007
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007008 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007009 if (do_io)
7010 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007011
7012 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007013
7014 /* Kill tasklet. */
7015 tasklet_kill(&sp->task);
7016
7017 /* Check if the device is Quiescent and then Reset the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007018 while(do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007019 /* As per the HW requirement we need to replenish the
7020 * receive buffer to avoid the ring bump. Since there is
7021 * no intention of processing the Rx frame at this pointwe are
7022 * just settting the ownership bit of rxd in Each Rx
7023 * ring to HW and set the appropriate buffer size
7024 * based on the ring mode
7025 */
7026 rxd_owner_bit_reset(sp);
7027
Linus Torvalds1da177e2005-04-16 15:20:36 -07007028 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007029 if (verify_xena_quiescence(sp)) {
7030 if(verify_pcc_quiescent(sp, sp->device_enabled_once))
Linus Torvalds1da177e2005-04-16 15:20:36 -07007031 break;
7032 }
7033
7034 msleep(50);
7035 cnt++;
7036 if (cnt == 10) {
7037 DBG_PRINT(ERR_DBG,
7038 "s2io_close:Device not Quiescent ");
7039 DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n",
7040 (unsigned long long) val64);
7041 break;
7042 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007043 }
7044 if (do_io)
7045 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007046
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007047 /* Free all Tx buffers */
7048 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007049
7050 /* Free all Rx buffers */
7051 spin_lock_irqsave(&sp->rx_lock, flags);
7052 free_rx_buffers(sp);
7053 spin_unlock_irqrestore(&sp->rx_lock, flags);
7054
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007055 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007056}
7057
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007058static void s2io_card_down(struct s2io_nic * sp)
7059{
7060 do_s2io_card_down(sp, 1);
7061}
7062
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007063static int s2io_card_up(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007064{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007065 int i, ret = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007066 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007067 struct config_param *config;
7068 struct net_device *dev = (struct net_device *) sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007069 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007070
7071 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007072 ret = init_nic(sp);
7073 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007074 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7075 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007076 if (ret != -EIO)
7077 s2io_reset(sp);
7078 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007079 }
7080
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007081 /*
7082 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007083 * Rx ring and initializing buffers into 30 Rx blocks
7084 */
7085 mac_control = &sp->mac_control;
7086 config = &sp->config;
7087
7088 for (i = 0; i < config->rx_ring_num; i++) {
7089 if ((ret = fill_rx_buffers(sp, i))) {
7090 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7091 dev->name);
7092 s2io_reset(sp);
7093 free_rx_buffers(sp);
7094 return -ENOMEM;
7095 }
7096 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
7097 atomic_read(&sp->rx_bufs_left[i]));
7098 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007099
7100 /* Initialise napi */
7101 if (config->napi)
7102 napi_enable(&sp->napi);
7103
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007104 /* Maintain the state prior to the open */
7105 if (sp->promisc_flg)
7106 sp->promisc_flg = 0;
7107 if (sp->m_cast_flg) {
7108 sp->m_cast_flg = 0;
7109 sp->all_multi_pos= 0;
7110 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007111
7112 /* Setting its receive mode */
7113 s2io_set_multicast(dev);
7114
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007115 if (sp->lro) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007116 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007117 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
7118 /* Check if we can use(if specified) user provided value */
7119 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7120 sp->lro_max_aggr_per_sess = lro_max_pkts;
7121 }
7122
Linus Torvalds1da177e2005-04-16 15:20:36 -07007123 /* Enable Rx Traffic and interrupts on the NIC */
7124 if (start_nic(sp)) {
7125 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007126 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007127 free_rx_buffers(sp);
7128 return -ENODEV;
7129 }
7130
7131 /* Add interrupt service routine */
7132 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007133 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007134 s2io_rem_isr(sp);
7135 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007136 free_rx_buffers(sp);
7137 return -ENODEV;
7138 }
7139
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007140 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7141
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007142 /* Enable tasklet for the device */
7143 tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev);
7144
7145 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007146 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007147 if (sp->config.intr_type != INTA)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007148 en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS);
7149 else {
7150 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007151 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007152 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7153 }
7154
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007155 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007156 return 0;
7157}
7158
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007159/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007160 * s2io_restart_nic - Resets the NIC.
7161 * @data : long pointer to the device private structure
7162 * Description:
7163 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007164 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007165 * the run time of the watch dog routine which is run holding a
7166 * spin lock.
7167 */
7168
David Howellsc4028952006-11-22 14:57:56 +00007169static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007170{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007171 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007172 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007173
Francois Romieu22747d62007-02-15 23:37:50 +01007174 rtnl_lock();
7175
7176 if (!netif_running(dev))
7177 goto out_unlock;
7178
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007179 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007180 if (s2io_card_up(sp)) {
7181 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
7182 dev->name);
7183 }
7184 netif_wake_queue(dev);
7185 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n",
7186 dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007187out_unlock:
7188 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007189}
7190
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007191/**
7192 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007193 * @dev : Pointer to net device structure
7194 * Description:
7195 * This function is triggered if the Tx Queue is stopped
7196 * for a pre-defined amount of time when the Interface is still up.
7197 * If the Interface is jammed in such a situation, the hardware is
7198 * reset (by s2io_close) and restarted again (by s2io_open) to
7199 * overcome any problem that might have been caused in the hardware.
7200 * Return value:
7201 * void
7202 */
7203
7204static void s2io_tx_watchdog(struct net_device *dev)
7205{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007206 struct s2io_nic *sp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007207
7208 if (netif_carrier_ok(dev)) {
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04007209 sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007210 schedule_work(&sp->rst_timer_task);
Ananda Rajubd1034f2006-04-21 19:20:22 -04007211 sp->mac_control.stats_info->sw_stat.soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007212 }
7213}
7214
7215/**
7216 * rx_osm_handler - To perform some OS related operations on SKB.
7217 * @sp: private member of the device structure,pointer to s2io_nic structure.
7218 * @skb : the socket buffer pointer.
7219 * @len : length of the packet
7220 * @cksum : FCS checksum of the frame.
7221 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007222 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007223 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007224 * some OS related operations on the SKB before passing it to the upper
7225 * layers. It mainly checks if the checksum is OK, if so adds it to the
7226 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7227 * to the upper layer. If the checksum is wrong, it increments the Rx
7228 * packet error count, frees the SKB and returns error.
7229 * Return value:
7230 * SUCCESS on success and -1 on failure.
7231 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007232static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007233{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007234 struct s2io_nic *sp = ring_data->nic;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007235 struct net_device *dev = (struct net_device *) sp->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007236 struct sk_buff *skb = (struct sk_buff *)
7237 ((unsigned long) rxdp->Host_Control);
7238 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007239 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007240 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007241 struct lro *lro;
Olaf Heringf9046eb2007-06-19 22:41:10 +02007242 u8 err_mask;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007243
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007244 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007245
Ananda Raju863c11a2006-04-21 19:03:13 -04007246 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007247 /* Check for parity error */
7248 if (err & 0x1) {
7249 sp->mac_control.stats_info->sw_stat.parity_err_cnt++;
7250 }
Olaf Heringf9046eb2007-06-19 22:41:10 +02007251 err_mask = err >> 48;
7252 switch(err_mask) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007253 case 1:
7254 sp->mac_control.stats_info->sw_stat.
7255 rx_parity_err_cnt++;
7256 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007257
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007258 case 2:
7259 sp->mac_control.stats_info->sw_stat.
7260 rx_abort_cnt++;
7261 break;
7262
7263 case 3:
7264 sp->mac_control.stats_info->sw_stat.
7265 rx_parity_abort_cnt++;
7266 break;
7267
7268 case 4:
7269 sp->mac_control.stats_info->sw_stat.
7270 rx_rda_fail_cnt++;
7271 break;
7272
7273 case 5:
7274 sp->mac_control.stats_info->sw_stat.
7275 rx_unkn_prot_cnt++;
7276 break;
7277
7278 case 6:
7279 sp->mac_control.stats_info->sw_stat.
7280 rx_fcs_err_cnt++;
7281 break;
7282
7283 case 7:
7284 sp->mac_control.stats_info->sw_stat.
7285 rx_buf_size_err_cnt++;
7286 break;
7287
7288 case 8:
7289 sp->mac_control.stats_info->sw_stat.
7290 rx_rxd_corrupt_cnt++;
7291 break;
7292
7293 case 15:
7294 sp->mac_control.stats_info->sw_stat.
7295 rx_unkn_err_cnt++;
7296 break;
7297 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007298 /*
7299 * Drop the packet if bad transfer code. Exception being
7300 * 0x5, which could be due to unsupported IPv6 extension header.
7301 * In this case, we let stack handle the packet.
7302 * Note that in this case, since checksum will be incorrect,
7303 * stack will validate the same.
7304 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007305 if (err_mask != 0x5) {
7306 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
7307 dev->name, err_mask);
Ananda Raju863c11a2006-04-21 19:03:13 -04007308 sp->stats.rx_crc_errors++;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04007309 sp->mac_control.stats_info->sw_stat.mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007310 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007311 dev_kfree_skb(skb);
7312 atomic_dec(&sp->rx_bufs_left[ring_no]);
7313 rxdp->Host_Control = 0;
7314 return 0;
7315 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007316 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007317
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007318 /* Updating statistics */
Ramkrishna Vepa573608e2007-07-25 19:43:12 -07007319 sp->stats.rx_packets++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007320 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007321 if (sp->rxd_mode == RXD_MODE_1) {
7322 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007323
Ananda Rajuda6971d2005-10-31 16:55:31 -05007324 sp->stats.rx_bytes += len;
7325 skb_put(skb, len);
7326
Veena Parat6d517a22007-07-23 02:20:51 -04007327 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007328 int get_block = ring_data->rx_curr_get_info.block_index;
7329 int get_off = ring_data->rx_curr_get_info.offset;
7330 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7331 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7332 unsigned char *buff = skb_push(skb, buf0_len);
7333
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007334 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05007335 sp->stats.rx_bytes += buf0_len + buf2_len;
7336 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007337 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007338 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007339
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007340 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) ||
7341 (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007342 (sp->rx_csum)) {
7343 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7344 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7345 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7346 /*
7347 * NIC verifies if the Checksum of the received
7348 * frame is Ok or not and accordingly returns
7349 * a flag in the RxD.
7350 */
7351 skb->ip_summed = CHECKSUM_UNNECESSARY;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007352 if (sp->lro) {
7353 u32 tcp_len;
7354 u8 *tcp;
7355 int ret = 0;
7356
7357 ret = s2io_club_tcp_session(skb->data, &tcp,
Stephen Hemminger43b7c452007-10-05 12:39:21 -07007358 &tcp_len, &lro,
7359 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007360 switch (ret) {
7361 case 3: /* Begin anew */
7362 lro->parent = skb;
7363 goto aggregate;
7364 case 1: /* Aggregate */
7365 {
7366 lro_append_pkt(sp, lro,
7367 skb, tcp_len);
7368 goto aggregate;
7369 }
7370 case 4: /* Flush session */
7371 {
7372 lro_append_pkt(sp, lro,
7373 skb, tcp_len);
7374 queue_rx_frame(lro->parent);
7375 clear_lro_session(lro);
7376 sp->mac_control.stats_info->
7377 sw_stat.flush_max_pkts++;
7378 goto aggregate;
7379 }
7380 case 2: /* Flush both */
7381 lro->parent->data_len =
7382 lro->frags_len;
7383 sp->mac_control.stats_info->
7384 sw_stat.sending_both++;
7385 queue_rx_frame(lro->parent);
7386 clear_lro_session(lro);
7387 goto send_up;
7388 case 0: /* sessions exceeded */
Ananda Rajuc92ca042006-04-21 19:18:03 -04007389 case -1: /* non-TCP or not
7390 * L2 aggregatable
7391 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007392 case 5: /*
7393 * First pkt in session not
7394 * L3/L4 aggregatable
7395 */
7396 break;
7397 default:
7398 DBG_PRINT(ERR_DBG,
7399 "%s: Samadhana!!\n",
7400 __FUNCTION__);
7401 BUG();
7402 }
7403 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007404 } else {
7405 /*
7406 * Packet with erroneous checksum, let the
7407 * upper layers deal with it.
7408 */
7409 skb->ip_summed = CHECKSUM_NONE;
7410 }
7411 } else {
7412 skb->ip_summed = CHECKSUM_NONE;
7413 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007414 sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007415 if (!sp->lro) {
7416 skb->protocol = eth_type_trans(skb, dev);
Sivakumar Subramani926930b2007-02-24 01:59:39 -05007417 if ((sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2) &&
7418 vlan_strip_flag)) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007419 /* Queueing the vlan frame to the upper layer */
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007420 if (napi)
7421 vlan_hwaccel_receive_skb(skb, sp->vlgrp,
7422 RXD_GET_VLAN_TAG(rxdp->Control_2));
7423 else
7424 vlan_hwaccel_rx(skb, sp->vlgrp,
7425 RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007426 } else {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007427 if (napi)
7428 netif_receive_skb(skb);
7429 else
7430 netif_rx(skb);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007431 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007432 } else {
7433send_up:
7434 queue_rx_frame(skb);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007435 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007436 dev->last_rx = jiffies;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007437aggregate:
Linus Torvalds1da177e2005-04-16 15:20:36 -07007438 atomic_dec(&sp->rx_bufs_left[ring_no]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007439 return SUCCESS;
7440}
7441
7442/**
7443 * s2io_link - stops/starts the Tx queue.
7444 * @sp : private member of the device structure, which is a pointer to the
7445 * s2io_nic structure.
7446 * @link : inidicates whether link is UP/DOWN.
7447 * Description:
7448 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007449 * status of the NIC is is down or up. This is called by the Alarm
7450 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007451 * Return value:
7452 * void.
7453 */
7454
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007455static void s2io_link(struct s2io_nic * sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007456{
7457 struct net_device *dev = (struct net_device *) sp->dev;
7458
7459 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007460 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007461 if (link == LINK_DOWN) {
7462 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
7463 netif_carrier_off(dev);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007464 if(sp->mac_control.stats_info->sw_stat.link_up_cnt)
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04007465 sp->mac_control.stats_info->sw_stat.link_up_time =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007466 jiffies - sp->start_time;
7467 sp->mac_control.stats_info->sw_stat.link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007468 } else {
7469 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007470 if (sp->mac_control.stats_info->sw_stat.link_down_cnt)
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04007471 sp->mac_control.stats_info->sw_stat.link_down_time =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007472 jiffies - sp->start_time;
7473 sp->mac_control.stats_info->sw_stat.link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007474 netif_carrier_on(dev);
7475 }
7476 }
7477 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007478 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007479}
7480
7481/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007482 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7483 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007484 * s2io_nic structure.
7485 * Description:
7486 * This function initializes a few of the PCI and PCI-X configuration registers
7487 * with recommended values.
7488 * Return value:
7489 * void
7490 */
7491
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007492static void s2io_init_pci(struct s2io_nic * sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007493{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007494 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007495
7496 /* Enable Data Parity Error Recovery in PCI-X command register. */
7497 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007498 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007499 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007500 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007501 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007502 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007503
7504 /* Set the PErr Response bit in PCI command register. */
7505 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7506 pci_write_config_word(sp->pdev, PCI_COMMAND,
7507 (pci_cmd | PCI_COMMAND_PARITY));
7508 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007509}
7510
Ananda Raju9dc737a2006-04-21 19:05:41 -04007511static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type)
7512{
Surjit Reang2fda0962008-01-24 02:08:59 -08007513 if ((tx_fifo_num > MAX_TX_FIFOS) ||
7514 (tx_fifo_num < FIFO_DEFAULT_NUM)) {
7515 DBG_PRINT(ERR_DBG, "s2io: Requested number of tx fifos "
7516 "(%d) not supported\n", tx_fifo_num);
7517 tx_fifo_num =
7518 ((tx_fifo_num > MAX_TX_FIFOS)? MAX_TX_FIFOS :
7519 ((tx_fifo_num < FIFO_DEFAULT_NUM) ? FIFO_DEFAULT_NUM :
7520 tx_fifo_num));
7521 DBG_PRINT(ERR_DBG, "s2io: Default to %d ", tx_fifo_num);
7522 DBG_PRINT(ERR_DBG, "tx fifos\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007523 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007524
Ananda Raju9dc737a2006-04-21 19:05:41 -04007525 if ( rx_ring_num > 8) {
7526 DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not "
7527 "supported\n");
7528 DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n");
7529 rx_ring_num = 8;
7530 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007531 if (*dev_intr_type != INTA)
7532 napi = 0;
7533
Veena Parateccb8622007-07-23 02:23:54 -04007534 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04007535 DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. "
7536 "Defaulting to INTA\n");
7537 *dev_intr_type = INTA;
7538 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007539
Ananda Raju9dc737a2006-04-21 19:05:41 -04007540 if ((*dev_intr_type == MSI_X) &&
7541 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7542 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007543 DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007544 "Defaulting to INTA\n");
7545 *dev_intr_type = INTA;
7546 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007547
Veena Parat6d517a22007-07-23 02:20:51 -04007548 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04007549 DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007550 DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n");
7551 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007552 }
7553 return SUCCESS;
7554}
7555
Linus Torvalds1da177e2005-04-16 15:20:36 -07007556/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007557 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7558 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007559 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007560 * Description: The function configures the receive steering to
7561 * desired receive ring.
7562 * Return Value: SUCCESS on success and
7563 * '-1' on failure (endian settings incorrect).
7564 */
7565static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7566{
7567 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7568 register u64 val64 = 0;
7569
7570 if (ds_codepoint > 63)
7571 return FAILURE;
7572
7573 val64 = RTS_DS_MEM_DATA(ring);
7574 writeq(val64, &bar0->rts_ds_mem_data);
7575
7576 val64 = RTS_DS_MEM_CTRL_WE |
7577 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7578 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7579
7580 writeq(val64, &bar0->rts_ds_mem_ctrl);
7581
7582 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
7583 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7584 S2IO_BIT_RESET);
7585}
7586
7587/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007588 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007589 * @pdev : structure containing the PCI related information of the device.
7590 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7591 * Description:
7592 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007593 * All OS related initialization including memory and device structure and
7594 * initlaization of the device private variable is done. Also the swapper
7595 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007596 * registers of the device.
7597 * Return value:
7598 * returns 0 on success and negative on failure.
7599 */
7600
7601static int __devinit
7602s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7603{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007604 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007605 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007606 int i, j, ret;
7607 int dma_flag = FALSE;
7608 u32 mac_up, mac_down;
7609 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007610 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007611 u16 subid;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007612 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007613 struct config_param *config;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007614 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007615 u8 dev_intr_type = intr_type;
Joe Perches0795af52007-10-03 17:59:30 -07007616 DECLARE_MAC_BUF(mac);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007617
Ananda Raju9dc737a2006-04-21 19:05:41 -04007618 if ((ret = s2io_verify_parm(pdev, &dev_intr_type)))
7619 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007620
7621 if ((ret = pci_enable_device(pdev))) {
7622 DBG_PRINT(ERR_DBG,
7623 "s2io_init_nic: pci_enable_device failed\n");
7624 return ret;
7625 }
7626
Domen Puncer1e7f0bd2005-06-26 18:22:14 -04007627 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007628 DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n");
7629 dma_flag = TRUE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007630 if (pci_set_consistent_dma_mask
Domen Puncer1e7f0bd2005-06-26 18:22:14 -04007631 (pdev, DMA_64BIT_MASK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007632 DBG_PRINT(ERR_DBG,
7633 "Unable to obtain 64bit DMA for \
7634 consistent allocations\n");
7635 pci_disable_device(pdev);
7636 return -ENOMEM;
7637 }
Domen Puncer1e7f0bd2005-06-26 18:22:14 -04007638 } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007639 DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n");
7640 } else {
7641 pci_disable_device(pdev);
7642 return -ENOMEM;
7643 }
Veena Parateccb8622007-07-23 02:23:54 -04007644 if ((ret = pci_request_regions(pdev, s2io_driver_name))) {
7645 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x \n", __FUNCTION__, ret);
7646 pci_disable_device(pdev);
7647 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007648 }
7649
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007650 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007651 if (dev == NULL) {
7652 DBG_PRINT(ERR_DBG, "Device allocation failed\n");
7653 pci_disable_device(pdev);
7654 pci_release_regions(pdev);
7655 return -ENODEV;
7656 }
7657
7658 pci_set_master(pdev);
7659 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007660 SET_NETDEV_DEV(dev, &pdev->dev);
7661
7662 /* Private member variable initialized to s2io NIC structure */
7663 sp = dev->priv;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007664 memset(sp, 0, sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007665 sp->dev = dev;
7666 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007667 sp->high_dma_flag = dma_flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007668 sp->device_enabled_once = FALSE;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007669 if (rx_ring_mode == 1)
7670 sp->rxd_mode = RXD_MODE_1;
7671 if (rx_ring_mode == 2)
7672 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007673
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007674 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007675
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007676 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
7677 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
7678 sp->device_type = XFRAME_II_DEVICE;
7679 else
7680 sp->device_type = XFRAME_I_DEVICE;
7681
Stephen Hemminger43b7c452007-10-05 12:39:21 -07007682 sp->lro = lro_enable;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007683
Linus Torvalds1da177e2005-04-16 15:20:36 -07007684 /* Initialize some PCI/PCI-X fields of the NIC. */
7685 s2io_init_pci(sp);
7686
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007687 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007688 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007689 * Most of these parameters can be specified by the user during
7690 * module insertion as they are module loadable parameters. If
7691 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007692 * are initialized with default values.
7693 */
7694 mac_control = &sp->mac_control;
7695 config = &sp->config;
7696
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007697 config->napi = napi;
7698
Linus Torvalds1da177e2005-04-16 15:20:36 -07007699 /* Tx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007700 config->tx_fifo_num = tx_fifo_num;
7701 for (i = 0; i < MAX_TX_FIFOS; i++) {
7702 config->tx_cfg[i].fifo_len = tx_fifo_len[i];
7703 config->tx_cfg[i].fifo_priority = i;
7704 }
7705
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007706 /* mapping the QoS priority to the configured fifos */
7707 for (i = 0; i < MAX_TX_FIFOS; i++)
7708 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i];
7709
Linus Torvalds1da177e2005-04-16 15:20:36 -07007710 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7711 for (i = 0; i < config->tx_fifo_num; i++) {
7712 config->tx_cfg[i].f_no_snoop =
7713 (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7714 if (config->tx_cfg[i].fifo_len < 65) {
7715 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7716 break;
7717 }
7718 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007719 /* + 2 because one Txd for skb->data and one Txd for UFO */
7720 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007721
7722 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007723 config->rx_ring_num = rx_ring_num;
7724 for (i = 0; i < MAX_RX_RINGS; i++) {
7725 config->rx_cfg[i].num_rxd = rx_ring_sz[i] *
Ananda Rajuda6971d2005-10-31 16:55:31 -05007726 (rxd_count[sp->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007727 config->rx_cfg[i].ring_priority = i;
7728 }
7729
7730 for (i = 0; i < rx_ring_num; i++) {
7731 config->rx_cfg[i].ring_org = RING_ORG_BUFF1;
7732 config->rx_cfg[i].f_no_snoop =
7733 (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
7734 }
7735
7736 /* Setting Mac Control parameters */
7737 mac_control->rmac_pause_time = rmac_pause_time;
7738 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
7739 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
7740
7741
7742 /* Initialize Ring buffer parameters. */
7743 for (i = 0; i < config->rx_ring_num; i++)
7744 atomic_set(&sp->rx_bufs_left[i], 0);
7745
7746 /* initialize the shared memory used by the NIC and the host */
7747 if (init_shared_mem(sp)) {
7748 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n",
Ananda Rajub41477f2006-07-24 19:52:49 -04007749 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007750 ret = -ENOMEM;
7751 goto mem_alloc_failed;
7752 }
7753
7754 sp->bar0 = ioremap(pci_resource_start(pdev, 0),
7755 pci_resource_len(pdev, 0));
7756 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007757 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007758 dev->name);
7759 ret = -ENOMEM;
7760 goto bar0_remap_failed;
7761 }
7762
7763 sp->bar1 = ioremap(pci_resource_start(pdev, 2),
7764 pci_resource_len(pdev, 2));
7765 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007766 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007767 dev->name);
7768 ret = -ENOMEM;
7769 goto bar1_remap_failed;
7770 }
7771
7772 dev->irq = pdev->irq;
7773 dev->base_addr = (unsigned long) sp->bar0;
7774
7775 /* Initializing the BAR1 address as the start of the FIFO pointer. */
7776 for (j = 0; j < MAX_TX_FIFOS; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007777 mac_control->tx_FIFO_start[j] = (struct TxFIFO_element __iomem *)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007778 (sp->bar1 + (j * 0x00020000));
7779 }
7780
7781 /* Driver entry points */
7782 dev->open = &s2io_open;
7783 dev->stop = &s2io_close;
7784 dev->hard_start_xmit = &s2io_xmit;
7785 dev->get_stats = &s2io_get_stats;
7786 dev->set_multicast_list = &s2io_set_multicast;
7787 dev->do_ioctl = &s2io_ioctl;
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04007788 dev->set_mac_address = &s2io_set_mac_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007789 dev->change_mtu = &s2io_change_mtu;
7790 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07007791 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
7792 dev->vlan_rx_register = s2io_vlan_rx_register;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007793
Linus Torvalds1da177e2005-04-16 15:20:36 -07007794 /*
7795 * will use eth_mac_addr() for dev->set_mac_address
7796 * mac address will be set every time dev->open() is called
7797 */
Stephen Hemmingerbea33482007-10-03 16:41:36 -07007798 netif_napi_add(dev, &sp->napi, s2io_poll, 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007799
Brian Haley612eff02006-06-15 14:36:36 -04007800#ifdef CONFIG_NET_POLL_CONTROLLER
7801 dev->poll_controller = s2io_netpoll;
7802#endif
7803
Linus Torvalds1da177e2005-04-16 15:20:36 -07007804 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
7805 if (sp->high_dma_flag == TRUE)
7806 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007807 dev->features |= NETIF_F_TSO;
Herbert Xuf83ef8c2006-06-30 13:37:03 -07007808 dev->features |= NETIF_F_TSO6;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007809 if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007810 dev->features |= NETIF_F_UFO;
7811 dev->features |= NETIF_F_HW_CSUM;
7812 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007813
7814 dev->tx_timeout = &s2io_tx_watchdog;
7815 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00007816 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
7817 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007818
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07007819 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007820
7821 /* Setting swapper control on the NIC, for proper reset operation */
7822 if (s2io_set_swapper(sp)) {
7823 DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n",
7824 dev->name);
7825 ret = -EAGAIN;
7826 goto set_swap_failed;
7827 }
7828
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007829 /* Verify if the Herc works on the slot its placed into */
7830 if (sp->device_type & XFRAME_II_DEVICE) {
7831 mode = s2io_verify_pci_mode(sp);
7832 if (mode < 0) {
7833 DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__);
7834 DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n");
7835 ret = -EBADSLT;
7836 goto set_swap_failed;
7837 }
7838 }
7839
7840 /* Not needed for Herc */
7841 if (sp->device_type & XFRAME_I_DEVICE) {
7842 /*
7843 * Fix for all "FFs" MAC address problems observed on
7844 * Alpha platforms
7845 */
7846 fix_mac_address(sp);
7847 s2io_reset(sp);
7848 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007849
7850 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007851 * MAC address initialization.
7852 * For now only one mac address will be read and used.
7853 */
7854 bar0 = sp->bar0;
7855 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08007856 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007857 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04007858 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007859 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007860 tmp64 = readq(&bar0->rmac_addr_data0_mem);
7861 mac_down = (u32) tmp64;
7862 mac_up = (u32) (tmp64 >> 32);
7863
Linus Torvalds1da177e2005-04-16 15:20:36 -07007864 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
7865 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
7866 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
7867 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
7868 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
7869 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
7870
Linus Torvalds1da177e2005-04-16 15:20:36 -07007871 /* Set the factory defined MAC address initially */
7872 dev->addr_len = ETH_ALEN;
7873 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04007874 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007875
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08007876 /* initialize number of multicast & unicast MAC entries variables */
7877 if (sp->device_type == XFRAME_I_DEVICE) {
7878 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
7879 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
7880 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
7881 } else if (sp->device_type == XFRAME_II_DEVICE) {
7882 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
7883 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
7884 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
7885 }
7886
7887 /* store mac addresses from CAM to s2io_nic structure */
7888 do_s2io_store_unicast_mc(sp);
7889
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04007890 /* Store the values of the MSIX table in the s2io_nic structure */
7891 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04007892 /* reset Nic and bring it to known state */
7893 s2io_reset(sp);
7894
Linus Torvalds1da177e2005-04-16 15:20:36 -07007895 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007896 * Initialize the tasklet status and link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007897 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07007898 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007899 sp->tasklet_status = 0;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007900 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007901
Linus Torvalds1da177e2005-04-16 15:20:36 -07007902 /* Initialize spinlocks */
Surjit Reang2fda0962008-01-24 02:08:59 -08007903 for (i = 0; i < sp->config.tx_fifo_num; i++)
7904 spin_lock_init(&mac_control->fifos[i].tx_lock);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007905
7906 if (!napi)
7907 spin_lock_init(&sp->put_lock);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007908 spin_lock_init(&sp->rx_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007909
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007910 /*
7911 * SXE-002: Configure link and activity LED to init state
7912 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007913 */
7914 subid = sp->pdev->subsystem_device;
7915 if ((subid & 0xFF) >= 0x07) {
7916 val64 = readq(&bar0->gpio_control);
7917 val64 |= 0x0000800000000000ULL;
7918 writeq(val64, &bar0->gpio_control);
7919 val64 = 0x0411040400000000ULL;
7920 writeq(val64, (void __iomem *) bar0 + 0x2700);
7921 val64 = readq(&bar0->gpio_control);
7922 }
7923
7924 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
7925
7926 if (register_netdev(dev)) {
7927 DBG_PRINT(ERR_DBG, "Device registration failed\n");
7928 ret = -ENODEV;
7929 goto register_failed;
7930 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04007931 s2io_vpd_read(sp);
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -08007932 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n");
Ananda Rajub41477f2006-07-24 19:52:49 -04007933 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07007934 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04007935 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
7936 s2io_driver_version);
Joe Perches0795af52007-10-03 17:59:30 -07007937 DBG_PRINT(ERR_DBG, "%s: MAC ADDR: %s\n",
7938 dev->name, print_mac(mac, dev->dev_addr));
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007939 DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007940 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07007941 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007942 if (mode < 0) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04007943 DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n");
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007944 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007945 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007946 goto set_swap_failed;
7947 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007948 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04007949 switch(sp->rxd_mode) {
7950 case RXD_MODE_1:
7951 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
7952 dev->name);
7953 break;
7954 case RXD_MODE_3B:
7955 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
7956 dev->name);
7957 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007958 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007959
7960 if (napi)
7961 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007962 switch(sp->config.intr_type) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04007963 case INTA:
7964 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
7965 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007966 case MSI_X:
7967 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
7968 break;
7969 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007970 if (sp->lro)
7971 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
Ananda Raju9dc737a2006-04-21 19:05:41 -04007972 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05007973 if (ufo)
7974 DBG_PRINT(ERR_DBG, "%s: UDP Fragmentation Offload(UFO)"
7975 " enabled\n", dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007976 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04007977 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007978
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007979 /*
7980 * Make Link state as off at this point, when the Link change
7981 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07007982 * the right state.
7983 */
7984 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007985
7986 return 0;
7987
7988 register_failed:
7989 set_swap_failed:
7990 iounmap(sp->bar1);
7991 bar1_remap_failed:
7992 iounmap(sp->bar0);
7993 bar0_remap_failed:
7994 mem_alloc_failed:
7995 free_shared_mem(sp);
7996 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04007997 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007998 pci_set_drvdata(pdev, NULL);
7999 free_netdev(dev);
8000
8001 return ret;
8002}
8003
8004/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008005 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008006 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008007 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008008 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008009 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008010 * from memory.
8011 */
8012
8013static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8014{
8015 struct net_device *dev =
8016 (struct net_device *) pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008017 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008018
8019 if (dev == NULL) {
8020 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8021 return;
8022 }
8023
Francois Romieu22747d62007-02-15 23:37:50 +01008024 flush_scheduled_work();
8025
Linus Torvalds1da177e2005-04-16 15:20:36 -07008026 sp = dev->priv;
8027 unregister_netdev(dev);
8028
8029 free_shared_mem(sp);
8030 iounmap(sp->bar0);
8031 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008032 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008033 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008034 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008035 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008036}
8037
8038/**
8039 * s2io_starter - Entry point for the driver
8040 * Description: This function is the entry point for the driver. It verifies
8041 * the module loadable parameters and initializes PCI configuration space.
8042 */
8043
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008044static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008045{
Jeff Garzik29917622006-08-19 17:48:59 -04008046 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008047}
8048
8049/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008050 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008051 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8052 */
8053
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008054static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008055{
8056 pci_unregister_driver(&s2io_driver);
8057 DBG_PRINT(INIT_DBG, "cleanup done\n");
8058}
8059
8060module_init(s2io_starter);
8061module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008062
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008063static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008064 struct tcphdr **tcp, struct RxD_t *rxdp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008065{
8066 int ip_off;
8067 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8068
8069 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
8070 DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n",
8071 __FUNCTION__);
8072 return -1;
8073 }
8074
8075 /* TODO:
8076 * By default the VLAN field in the MAC is stripped by the card, if this
8077 * feature is turned off in rx_pa_cfg register, then the ip_off field
8078 * has to be shifted by a further 2 bytes
8079 */
8080 switch (l2_type) {
8081 case 0: /* DIX type */
8082 case 4: /* DIX type with VLAN */
8083 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8084 break;
8085 /* LLC, SNAP etc are considered non-mergeable */
8086 default:
8087 return -1;
8088 }
8089
8090 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8091 ip_len = (u8)((*ip)->ihl);
8092 ip_len <<= 2;
8093 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8094
8095 return 0;
8096}
8097
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008098static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008099 struct tcphdr *tcp)
8100{
8101 DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
8102 if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) ||
8103 (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest))
8104 return -1;
8105 return 0;
8106}
8107
8108static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8109{
8110 return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2));
8111}
8112
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008113static void initiate_new_session(struct lro *lro, u8 *l2h,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008114 struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len)
8115{
8116 DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
8117 lro->l2h = l2h;
8118 lro->iph = ip;
8119 lro->tcph = tcp;
8120 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008121 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008122 lro->sg_num = 1;
8123 lro->total_len = ntohs(ip->tot_len);
8124 lro->frags_len = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008125 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008126 * check if we saw TCP timestamp. Other consistency checks have
8127 * already been done.
8128 */
8129 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008130 __be32 *ptr;
8131 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008132 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008133 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008134 lro->cur_tsecr = *(ptr+2);
8135 }
8136 lro->in_use = 1;
8137}
8138
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008139static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008140{
8141 struct iphdr *ip = lro->iph;
8142 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008143 __sum16 nchk;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008144 struct stat_block *statinfo = sp->mac_control.stats_info;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008145 DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
8146
8147 /* Update L3 header */
8148 ip->tot_len = htons(lro->total_len);
8149 ip->check = 0;
8150 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8151 ip->check = nchk;
8152
8153 /* Update L4 header */
8154 tcp->ack_seq = lro->tcp_ack;
8155 tcp->window = lro->window;
8156
8157 /* Update tsecr field if this session has timestamps enabled */
8158 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008159 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008160 *(ptr+2) = lro->cur_tsecr;
8161 }
8162
8163 /* Update counters required for calculation of
8164 * average no. of packets aggregated.
8165 */
8166 statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num;
8167 statinfo->sw_stat.num_aggregations++;
8168}
8169
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008170static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008171 struct tcphdr *tcp, u32 l4_pyld)
8172{
8173 DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
8174 lro->total_len += l4_pyld;
8175 lro->frags_len += l4_pyld;
8176 lro->tcp_next_seq += l4_pyld;
8177 lro->sg_num++;
8178
8179 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8180 lro->tcp_ack = tcp->ack_seq;
8181 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008182
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008183 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008184 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008185 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008186 ptr = (__be32 *)(tcp+1);
8187 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008188 lro->cur_tsecr = *(ptr + 2);
8189 }
8190}
8191
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008192static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008193 struct tcphdr *tcp, u32 tcp_pyld_len)
8194{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008195 u8 *ptr;
8196
Andrew Morton79dc1902006-02-03 01:45:13 -08008197 DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
8198
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008199 if (!tcp_pyld_len) {
8200 /* Runt frame or a pure ack */
8201 return -1;
8202 }
8203
8204 if (ip->ihl != 5) /* IP has options */
8205 return -1;
8206
Ananda Raju75c30b12006-07-24 19:55:09 -04008207 /* If we see CE codepoint in IP header, packet is not mergeable */
8208 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8209 return -1;
8210
8211 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008212 if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin ||
Ananda Raju75c30b12006-07-24 19:55:09 -04008213 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008214 /*
8215 * Currently recognize only the ack control word and
8216 * any other control field being set would result in
8217 * flushing the LRO session
8218 */
8219 return -1;
8220 }
8221
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008222 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008223 * Allow only one TCP timestamp option. Don't aggregate if
8224 * any other options are detected.
8225 */
8226 if (tcp->doff != 5 && tcp->doff != 8)
8227 return -1;
8228
8229 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008230 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008231 while (*ptr == TCPOPT_NOP)
8232 ptr++;
8233 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8234 return -1;
8235
8236 /* Ensure timestamp value increases monotonically */
8237 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008238 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008239 return -1;
8240
8241 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008242 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008243 return -1;
8244 }
8245
8246 return 0;
8247}
8248
8249static int
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008250s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
8251 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008252{
8253 struct iphdr *ip;
8254 struct tcphdr *tcph;
8255 int ret = 0, i;
8256
8257 if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8258 rxdp))) {
8259 DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n",
8260 ip->saddr, ip->daddr);
8261 } else {
8262 return ret;
8263 }
8264
8265 tcph = (struct tcphdr *)*tcp;
8266 *tcp_len = get_l4_pyld_length(ip, tcph);
8267 for (i=0; i<MAX_LRO_SESSIONS; i++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008268 struct lro *l_lro = &sp->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008269 if (l_lro->in_use) {
8270 if (check_for_socket_match(l_lro, ip, tcph))
8271 continue;
8272 /* Sock pair matched */
8273 *lro = l_lro;
8274
8275 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
8276 DBG_PRINT(INFO_DBG, "%s:Out of order. expected "
8277 "0x%x, actual 0x%x\n", __FUNCTION__,
8278 (*lro)->tcp_next_seq,
8279 ntohl(tcph->seq));
8280
8281 sp->mac_control.stats_info->
8282 sw_stat.outof_sequence_pkts++;
8283 ret = 2;
8284 break;
8285 }
8286
8287 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len))
8288 ret = 1; /* Aggregate */
8289 else
8290 ret = 2; /* Flush both */
8291 break;
8292 }
8293 }
8294
8295 if (ret == 0) {
8296 /* Before searching for available LRO objects,
8297 * check if the pkt is L3/L4 aggregatable. If not
8298 * don't create new LRO session. Just send this
8299 * packet up.
8300 */
8301 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) {
8302 return 5;
8303 }
8304
8305 for (i=0; i<MAX_LRO_SESSIONS; i++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008306 struct lro *l_lro = &sp->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008307 if (!(l_lro->in_use)) {
8308 *lro = l_lro;
8309 ret = 3; /* Begin anew */
8310 break;
8311 }
8312 }
8313 }
8314
8315 if (ret == 0) { /* sessions exceeded */
8316 DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n",
8317 __FUNCTION__);
8318 *lro = NULL;
8319 return ret;
8320 }
8321
8322 switch (ret) {
8323 case 3:
8324 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len);
8325 break;
8326 case 2:
8327 update_L3L4_header(sp, *lro);
8328 break;
8329 case 1:
8330 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8331 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
8332 update_L3L4_header(sp, *lro);
8333 ret = 4; /* Flush the LRO */
8334 }
8335 break;
8336 default:
8337 DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n",
8338 __FUNCTION__);
8339 break;
8340 }
8341
8342 return ret;
8343}
8344
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008345static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008346{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008347 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008348
8349 memset(lro, 0, lro_struct_size);
8350}
8351
8352static void queue_rx_frame(struct sk_buff *skb)
8353{
8354 struct net_device *dev = skb->dev;
8355
8356 skb->protocol = eth_type_trans(skb, dev);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008357 if (napi)
8358 netif_receive_skb(skb);
8359 else
8360 netif_rx(skb);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008361}
8362
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008363static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
8364 struct sk_buff *skb,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008365 u32 tcp_len)
8366{
Ananda Raju75c30b12006-07-24 19:55:09 -04008367 struct sk_buff *first = lro->parent;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008368
8369 first->len += tcp_len;
8370 first->data_len = lro->frags_len;
8371 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008372 if (skb_shinfo(first)->frag_list)
8373 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008374 else
8375 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008376 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008377 lro->last_frag = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008378 sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++;
8379 return;
8380}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008381
8382/**
8383 * s2io_io_error_detected - called when PCI error is detected
8384 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008385 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008386 *
8387 * This function is called after a PCI bus error affecting
8388 * this device has been detected.
8389 */
8390static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
8391 pci_channel_state_t state)
8392{
8393 struct net_device *netdev = pci_get_drvdata(pdev);
8394 struct s2io_nic *sp = netdev->priv;
8395
8396 netif_device_detach(netdev);
8397
8398 if (netif_running(netdev)) {
8399 /* Bring down the card, while avoiding PCI I/O */
8400 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008401 }
8402 pci_disable_device(pdev);
8403
8404 return PCI_ERS_RESULT_NEED_RESET;
8405}
8406
8407/**
8408 * s2io_io_slot_reset - called after the pci bus has been reset.
8409 * @pdev: Pointer to PCI device
8410 *
8411 * Restart the card from scratch, as if from a cold-boot.
8412 * At this point, the card has exprienced a hard reset,
8413 * followed by fixups by BIOS, and has its config space
8414 * set up identically to what it was at cold boot.
8415 */
8416static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8417{
8418 struct net_device *netdev = pci_get_drvdata(pdev);
8419 struct s2io_nic *sp = netdev->priv;
8420
8421 if (pci_enable_device(pdev)) {
8422 printk(KERN_ERR "s2io: "
8423 "Cannot re-enable PCI device after reset.\n");
8424 return PCI_ERS_RESULT_DISCONNECT;
8425 }
8426
8427 pci_set_master(pdev);
8428 s2io_reset(sp);
8429
8430 return PCI_ERS_RESULT_RECOVERED;
8431}
8432
8433/**
8434 * s2io_io_resume - called when traffic can start flowing again.
8435 * @pdev: Pointer to PCI device
8436 *
8437 * This callback is called when the error recovery driver tells
8438 * us that its OK to resume normal operation.
8439 */
8440static void s2io_io_resume(struct pci_dev *pdev)
8441{
8442 struct net_device *netdev = pci_get_drvdata(pdev);
8443 struct s2io_nic *sp = netdev->priv;
8444
8445 if (netif_running(netdev)) {
8446 if (s2io_card_up(sp)) {
8447 printk(KERN_ERR "s2io: "
8448 "Can't bring device back up after reset.\n");
8449 return;
8450 }
8451
8452 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8453 s2io_card_down(sp);
8454 printk(KERN_ERR "s2io: "
8455 "Can't resetore mac addr after reset.\n");
8456 return;
8457 }
8458 }
8459
8460 netif_device_attach(netdev);
8461 netif_wake_queue(netdev);
8462}