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1da177e4 | 1 | /************************************************************************ |
776bd20f | 2 | * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC |
926bd900 | 3 | * Copyright(c) 2002-2010 Exar Corp. |
d44570e4 | 4 | * |
1da177e4 LT |
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: | |
20346722 | 14 | * 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 | |
1da177e4 LT |
18 | * 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. | |
20346722 | 21 | * Francois Romieu : For pointing out all code part that were |
1da177e4 | 22 | * deprecated and also styling related comments. |
20346722 | 23 | * Grant Grundler : For helping me get rid of some Architecture |
1da177e4 LT |
24 | * dependent code. |
25 | * Christopher Hellwig : Some more 2.6 specific issues in the driver. | |
20346722 | 26 | * |
1da177e4 | 27 | * The module loadable parameters that are supported by the driver and a brief |
a2a20aef | 28 | * explanation of all the variables. |
9dc737a7 | 29 | * |
20346722 | 30 | * rx_ring_num : This can be used to program the number of receive rings used |
31 | * in the driver. | |
9dc737a7 AR |
32 | * rx_ring_sz: This defines the number of receive blocks each ring can have. |
33 | * This is also an array of size 8. | |
da6971d8 | 34 | * rx_ring_mode: This defines the operation mode of all 8 rings. The valid |
6d517a27 | 35 | * values are 1, 2. |
1da177e4 | 36 | * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver. |
20346722 | 37 | * tx_fifo_len: This too is an array of 8. Each element defines the number of |
1da177e4 | 38 | * Tx descriptors that can be associated with each corresponding FIFO. |
9dc737a7 | 39 | * intr_type: This defines the type of interrupt. The values can be 0(INTA), |
8abc4d5b | 40 | * 2(MSI_X). Default value is '2(MSI_X)' |
9dc737a7 AR |
41 | * lro_max_pkts: This parameter defines maximum number of packets can be |
42 | * aggregated as a single large packet | |
926930b2 SS |
43 | * napi: This parameter used to enable/disable NAPI (polling Rx) |
44 | * Possible values '1' for enable and '0' for disable. Default is '1' | |
45 | * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO) | |
46 | * Possible values '1' for enable and '0' for disable. Default is '0' | |
47 | * vlan_tag_strip: This can be used to enable or disable vlan stripping. | |
48 | * Possible values '1' for enable , '0' for disable. | |
49 | * Default is '2' - which means disable in promisc mode | |
50 | * and enable in non-promiscuous mode. | |
3a3d5756 SH |
51 | * multiq: This parameter used to enable/disable MULTIQUEUE support. |
52 | * Possible values '1' for enable and '0' for disable. Default is '0' | |
1da177e4 LT |
53 | ************************************************************************/ |
54 | ||
6cef2b8e JP |
55 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
56 | ||
1da177e4 LT |
57 | #include <linux/module.h> |
58 | #include <linux/types.h> | |
59 | #include <linux/errno.h> | |
60 | #include <linux/ioport.h> | |
61 | #include <linux/pci.h> | |
1e7f0bd8 | 62 | #include <linux/dma-mapping.h> |
1da177e4 LT |
63 | #include <linux/kernel.h> |
64 | #include <linux/netdevice.h> | |
65 | #include <linux/etherdevice.h> | |
40239396 | 66 | #include <linux/mdio.h> |
1da177e4 LT |
67 | #include <linux/skbuff.h> |
68 | #include <linux/init.h> | |
69 | #include <linux/delay.h> | |
70 | #include <linux/stddef.h> | |
71 | #include <linux/ioctl.h> | |
72 | #include <linux/timex.h> | |
1da177e4 | 73 | #include <linux/ethtool.h> |
1da177e4 | 74 | #include <linux/workqueue.h> |
be3a6b02 | 75 | #include <linux/if_vlan.h> |
7d3d0439 RA |
76 | #include <linux/ip.h> |
77 | #include <linux/tcp.h> | |
d44570e4 JP |
78 | #include <linux/uaccess.h> |
79 | #include <linux/io.h> | |
5a0e3ad6 | 80 | #include <linux/slab.h> |
7d3d0439 | 81 | #include <net/tcp.h> |
1da177e4 | 82 | |
1da177e4 | 83 | #include <asm/system.h> |
fe931395 | 84 | #include <asm/div64.h> |
330ce0de | 85 | #include <asm/irq.h> |
1da177e4 LT |
86 | |
87 | /* local include */ | |
88 | #include "s2io.h" | |
89 | #include "s2io-regs.h" | |
90 | ||
11410b62 | 91 | #define DRV_VERSION "2.0.26.28" |
6c1792f4 | 92 | |
1da177e4 | 93 | /* S2io Driver name & version. */ |
c0dbf37e JM |
94 | static const char s2io_driver_name[] = "Neterion"; |
95 | static const char s2io_driver_version[] = DRV_VERSION; | |
1da177e4 | 96 | |
c0dbf37e JM |
97 | static const int rxd_size[2] = {32, 48}; |
98 | static const int rxd_count[2] = {127, 85}; | |
da6971d8 | 99 | |
1ee6dd77 | 100 | static inline int RXD_IS_UP2DT(struct RxD_t *rxdp) |
5e25b9dd | 101 | { |
102 | int ret; | |
103 | ||
104 | ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) && | |
d44570e4 | 105 | (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK)); |
5e25b9dd | 106 | |
107 | return ret; | |
108 | } | |
109 | ||
20346722 | 110 | /* |
1da177e4 LT |
111 | * Cards with following subsystem_id have a link state indication |
112 | * problem, 600B, 600C, 600D, 640B, 640C and 640D. | |
113 | * macro below identifies these cards given the subsystem_id. | |
114 | */ | |
d44570e4 JP |
115 | #define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \ |
116 | (dev_type == XFRAME_I_DEVICE) ? \ | |
117 | ((((subid >= 0x600B) && (subid <= 0x600D)) || \ | |
118 | ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0 | |
1da177e4 LT |
119 | |
120 | #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \ | |
121 | ADAPTER_STATUS_RMAC_LOCAL_FAULT))) | |
1da177e4 | 122 | |
d44570e4 | 123 | static inline int is_s2io_card_up(const struct s2io_nic *sp) |
92b84437 SS |
124 | { |
125 | return test_bit(__S2IO_STATE_CARD_UP, &sp->state); | |
126 | } | |
127 | ||
1da177e4 | 128 | /* Ethtool related variables and Macros. */ |
6fce365d | 129 | static const char s2io_gstrings[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
130 | "Register test\t(offline)", |
131 | "Eeprom test\t(offline)", | |
132 | "Link test\t(online)", | |
133 | "RLDRAM test\t(offline)", | |
134 | "BIST Test\t(offline)" | |
135 | }; | |
136 | ||
6fce365d | 137 | static const char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
138 | {"tmac_frms"}, |
139 | {"tmac_data_octets"}, | |
140 | {"tmac_drop_frms"}, | |
141 | {"tmac_mcst_frms"}, | |
142 | {"tmac_bcst_frms"}, | |
143 | {"tmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
144 | {"tmac_ttl_octets"}, |
145 | {"tmac_ucst_frms"}, | |
146 | {"tmac_nucst_frms"}, | |
1da177e4 | 147 | {"tmac_any_err_frms"}, |
bd1034f0 | 148 | {"tmac_ttl_less_fb_octets"}, |
1da177e4 LT |
149 | {"tmac_vld_ip_octets"}, |
150 | {"tmac_vld_ip"}, | |
151 | {"tmac_drop_ip"}, | |
152 | {"tmac_icmp"}, | |
153 | {"tmac_rst_tcp"}, | |
154 | {"tmac_tcp"}, | |
155 | {"tmac_udp"}, | |
156 | {"rmac_vld_frms"}, | |
157 | {"rmac_data_octets"}, | |
158 | {"rmac_fcs_err_frms"}, | |
159 | {"rmac_drop_frms"}, | |
160 | {"rmac_vld_mcst_frms"}, | |
161 | {"rmac_vld_bcst_frms"}, | |
162 | {"rmac_in_rng_len_err_frms"}, | |
bd1034f0 | 163 | {"rmac_out_rng_len_err_frms"}, |
1da177e4 LT |
164 | {"rmac_long_frms"}, |
165 | {"rmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
166 | {"rmac_unsup_ctrl_frms"}, |
167 | {"rmac_ttl_octets"}, | |
168 | {"rmac_accepted_ucst_frms"}, | |
169 | {"rmac_accepted_nucst_frms"}, | |
1da177e4 | 170 | {"rmac_discarded_frms"}, |
bd1034f0 AR |
171 | {"rmac_drop_events"}, |
172 | {"rmac_ttl_less_fb_octets"}, | |
173 | {"rmac_ttl_frms"}, | |
1da177e4 LT |
174 | {"rmac_usized_frms"}, |
175 | {"rmac_osized_frms"}, | |
176 | {"rmac_frag_frms"}, | |
177 | {"rmac_jabber_frms"}, | |
bd1034f0 AR |
178 | {"rmac_ttl_64_frms"}, |
179 | {"rmac_ttl_65_127_frms"}, | |
180 | {"rmac_ttl_128_255_frms"}, | |
181 | {"rmac_ttl_256_511_frms"}, | |
182 | {"rmac_ttl_512_1023_frms"}, | |
183 | {"rmac_ttl_1024_1518_frms"}, | |
1da177e4 LT |
184 | {"rmac_ip"}, |
185 | {"rmac_ip_octets"}, | |
186 | {"rmac_hdr_err_ip"}, | |
187 | {"rmac_drop_ip"}, | |
188 | {"rmac_icmp"}, | |
189 | {"rmac_tcp"}, | |
190 | {"rmac_udp"}, | |
191 | {"rmac_err_drp_udp"}, | |
bd1034f0 AR |
192 | {"rmac_xgmii_err_sym"}, |
193 | {"rmac_frms_q0"}, | |
194 | {"rmac_frms_q1"}, | |
195 | {"rmac_frms_q2"}, | |
196 | {"rmac_frms_q3"}, | |
197 | {"rmac_frms_q4"}, | |
198 | {"rmac_frms_q5"}, | |
199 | {"rmac_frms_q6"}, | |
200 | {"rmac_frms_q7"}, | |
201 | {"rmac_full_q0"}, | |
202 | {"rmac_full_q1"}, | |
203 | {"rmac_full_q2"}, | |
204 | {"rmac_full_q3"}, | |
205 | {"rmac_full_q4"}, | |
206 | {"rmac_full_q5"}, | |
207 | {"rmac_full_q6"}, | |
208 | {"rmac_full_q7"}, | |
1da177e4 | 209 | {"rmac_pause_cnt"}, |
bd1034f0 AR |
210 | {"rmac_xgmii_data_err_cnt"}, |
211 | {"rmac_xgmii_ctrl_err_cnt"}, | |
1da177e4 LT |
212 | {"rmac_accepted_ip"}, |
213 | {"rmac_err_tcp"}, | |
bd1034f0 AR |
214 | {"rd_req_cnt"}, |
215 | {"new_rd_req_cnt"}, | |
216 | {"new_rd_req_rtry_cnt"}, | |
217 | {"rd_rtry_cnt"}, | |
218 | {"wr_rtry_rd_ack_cnt"}, | |
219 | {"wr_req_cnt"}, | |
220 | {"new_wr_req_cnt"}, | |
221 | {"new_wr_req_rtry_cnt"}, | |
222 | {"wr_rtry_cnt"}, | |
223 | {"wr_disc_cnt"}, | |
224 | {"rd_rtry_wr_ack_cnt"}, | |
225 | {"txp_wr_cnt"}, | |
226 | {"txd_rd_cnt"}, | |
227 | {"txd_wr_cnt"}, | |
228 | {"rxd_rd_cnt"}, | |
229 | {"rxd_wr_cnt"}, | |
230 | {"txf_rd_cnt"}, | |
fa1f0cb3 SS |
231 | {"rxf_wr_cnt"} |
232 | }; | |
233 | ||
6fce365d | 234 | static const char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = { |
bd1034f0 AR |
235 | {"rmac_ttl_1519_4095_frms"}, |
236 | {"rmac_ttl_4096_8191_frms"}, | |
237 | {"rmac_ttl_8192_max_frms"}, | |
238 | {"rmac_ttl_gt_max_frms"}, | |
239 | {"rmac_osized_alt_frms"}, | |
240 | {"rmac_jabber_alt_frms"}, | |
241 | {"rmac_gt_max_alt_frms"}, | |
242 | {"rmac_vlan_frms"}, | |
243 | {"rmac_len_discard"}, | |
244 | {"rmac_fcs_discard"}, | |
245 | {"rmac_pf_discard"}, | |
246 | {"rmac_da_discard"}, | |
247 | {"rmac_red_discard"}, | |
248 | {"rmac_rts_discard"}, | |
249 | {"rmac_ingm_full_discard"}, | |
fa1f0cb3 SS |
250 | {"link_fault_cnt"} |
251 | }; | |
252 | ||
6fce365d | 253 | static const char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = { |
7ba013ac | 254 | {"\n DRIVER STATISTICS"}, |
255 | {"single_bit_ecc_errs"}, | |
256 | {"double_bit_ecc_errs"}, | |
bd1034f0 AR |
257 | {"parity_err_cnt"}, |
258 | {"serious_err_cnt"}, | |
259 | {"soft_reset_cnt"}, | |
260 | {"fifo_full_cnt"}, | |
8116f3cf SS |
261 | {"ring_0_full_cnt"}, |
262 | {"ring_1_full_cnt"}, | |
263 | {"ring_2_full_cnt"}, | |
264 | {"ring_3_full_cnt"}, | |
265 | {"ring_4_full_cnt"}, | |
266 | {"ring_5_full_cnt"}, | |
267 | {"ring_6_full_cnt"}, | |
268 | {"ring_7_full_cnt"}, | |
43b7c451 SH |
269 | {"alarm_transceiver_temp_high"}, |
270 | {"alarm_transceiver_temp_low"}, | |
271 | {"alarm_laser_bias_current_high"}, | |
272 | {"alarm_laser_bias_current_low"}, | |
273 | {"alarm_laser_output_power_high"}, | |
274 | {"alarm_laser_output_power_low"}, | |
275 | {"warn_transceiver_temp_high"}, | |
276 | {"warn_transceiver_temp_low"}, | |
277 | {"warn_laser_bias_current_high"}, | |
278 | {"warn_laser_bias_current_low"}, | |
279 | {"warn_laser_output_power_high"}, | |
280 | {"warn_laser_output_power_low"}, | |
281 | {"lro_aggregated_pkts"}, | |
282 | {"lro_flush_both_count"}, | |
283 | {"lro_out_of_sequence_pkts"}, | |
284 | {"lro_flush_due_to_max_pkts"}, | |
285 | {"lro_avg_aggr_pkts"}, | |
286 | {"mem_alloc_fail_cnt"}, | |
287 | {"pci_map_fail_cnt"}, | |
288 | {"watchdog_timer_cnt"}, | |
289 | {"mem_allocated"}, | |
290 | {"mem_freed"}, | |
291 | {"link_up_cnt"}, | |
292 | {"link_down_cnt"}, | |
293 | {"link_up_time"}, | |
294 | {"link_down_time"}, | |
295 | {"tx_tcode_buf_abort_cnt"}, | |
296 | {"tx_tcode_desc_abort_cnt"}, | |
297 | {"tx_tcode_parity_err_cnt"}, | |
298 | {"tx_tcode_link_loss_cnt"}, | |
299 | {"tx_tcode_list_proc_err_cnt"}, | |
300 | {"rx_tcode_parity_err_cnt"}, | |
301 | {"rx_tcode_abort_cnt"}, | |
302 | {"rx_tcode_parity_abort_cnt"}, | |
303 | {"rx_tcode_rda_fail_cnt"}, | |
304 | {"rx_tcode_unkn_prot_cnt"}, | |
305 | {"rx_tcode_fcs_err_cnt"}, | |
306 | {"rx_tcode_buf_size_err_cnt"}, | |
307 | {"rx_tcode_rxd_corrupt_cnt"}, | |
308 | {"rx_tcode_unkn_err_cnt"}, | |
8116f3cf SS |
309 | {"tda_err_cnt"}, |
310 | {"pfc_err_cnt"}, | |
311 | {"pcc_err_cnt"}, | |
312 | {"tti_err_cnt"}, | |
313 | {"tpa_err_cnt"}, | |
314 | {"sm_err_cnt"}, | |
315 | {"lso_err_cnt"}, | |
316 | {"mac_tmac_err_cnt"}, | |
317 | {"mac_rmac_err_cnt"}, | |
318 | {"xgxs_txgxs_err_cnt"}, | |
319 | {"xgxs_rxgxs_err_cnt"}, | |
320 | {"rc_err_cnt"}, | |
321 | {"prc_pcix_err_cnt"}, | |
322 | {"rpa_err_cnt"}, | |
323 | {"rda_err_cnt"}, | |
324 | {"rti_err_cnt"}, | |
325 | {"mc_err_cnt"} | |
1da177e4 LT |
326 | }; |
327 | ||
4c3616cd AMR |
328 | #define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys) |
329 | #define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys) | |
330 | #define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys) | |
fa1f0cb3 | 331 | |
d44570e4 JP |
332 | #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN) |
333 | #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN) | |
fa1f0cb3 | 334 | |
d44570e4 JP |
335 | #define XFRAME_I_STAT_STRINGS_LEN (XFRAME_I_STAT_LEN * ETH_GSTRING_LEN) |
336 | #define XFRAME_II_STAT_STRINGS_LEN (XFRAME_II_STAT_LEN * ETH_GSTRING_LEN) | |
1da177e4 | 337 | |
4c3616cd | 338 | #define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings) |
d44570e4 | 339 | #define S2IO_STRINGS_LEN (S2IO_TEST_LEN * ETH_GSTRING_LEN) |
1da177e4 | 340 | |
d44570e4 JP |
341 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
342 | init_timer(&timer); \ | |
343 | timer.function = handle; \ | |
344 | timer.data = (unsigned long)arg; \ | |
345 | mod_timer(&timer, (jiffies + exp)) \ | |
25fff88e | 346 | |
2fd37688 SS |
347 | /* copy mac addr to def_mac_addr array */ |
348 | static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr) | |
349 | { | |
350 | sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr); | |
351 | sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8); | |
352 | sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16); | |
353 | sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24); | |
354 | sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32); | |
355 | sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40); | |
356 | } | |
04025095 | 357 | |
be3a6b02 | 358 | /* Add the vlan */ |
359 | static void s2io_vlan_rx_register(struct net_device *dev, | |
04025095 | 360 | struct vlan_group *grp) |
be3a6b02 | 361 | { |
2fda096d | 362 | int i; |
4cf1653a | 363 | struct s2io_nic *nic = netdev_priv(dev); |
2fda096d | 364 | unsigned long flags[MAX_TX_FIFOS]; |
2fda096d | 365 | struct config_param *config = &nic->config; |
ffb5df6c | 366 | struct mac_info *mac_control = &nic->mac_control; |
2fda096d | 367 | |
13d866a9 JP |
368 | for (i = 0; i < config->tx_fifo_num; i++) { |
369 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
370 | ||
371 | spin_lock_irqsave(&fifo->tx_lock, flags[i]); | |
372 | } | |
be3a6b02 | 373 | |
be3a6b02 | 374 | nic->vlgrp = grp; |
13d866a9 JP |
375 | |
376 | for (i = config->tx_fifo_num - 1; i >= 0; i--) { | |
377 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
378 | ||
379 | spin_unlock_irqrestore(&fifo->tx_lock, flags[i]); | |
380 | } | |
be3a6b02 | 381 | } |
382 | ||
cdb5bf02 | 383 | /* Unregister the vlan */ |
04025095 | 384 | static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
cdb5bf02 SH |
385 | { |
386 | int i; | |
4cf1653a | 387 | struct s2io_nic *nic = netdev_priv(dev); |
cdb5bf02 | 388 | unsigned long flags[MAX_TX_FIFOS]; |
cdb5bf02 | 389 | struct config_param *config = &nic->config; |
ffb5df6c | 390 | struct mac_info *mac_control = &nic->mac_control; |
cdb5bf02 | 391 | |
13d866a9 JP |
392 | for (i = 0; i < config->tx_fifo_num; i++) { |
393 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
394 | ||
395 | spin_lock_irqsave(&fifo->tx_lock, flags[i]); | |
396 | } | |
cdb5bf02 SH |
397 | |
398 | if (nic->vlgrp) | |
399 | vlan_group_set_device(nic->vlgrp, vid, NULL); | |
400 | ||
13d866a9 JP |
401 | for (i = config->tx_fifo_num - 1; i >= 0; i--) { |
402 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
403 | ||
404 | spin_unlock_irqrestore(&fifo->tx_lock, flags[i]); | |
405 | } | |
cdb5bf02 SH |
406 | } |
407 | ||
20346722 | 408 | /* |
1da177e4 LT |
409 | * Constants to be programmed into the Xena's registers, to configure |
410 | * the XAUI. | |
411 | */ | |
412 | ||
1da177e4 | 413 | #define END_SIGN 0x0 |
f71e1309 | 414 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 415 | /* Set address */ |
e960fc5c | 416 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 417 | /* Write data */ |
e960fc5c | 418 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f | 419 | /* Set address */ |
420 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
421 | /* Write data */ | |
422 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
423 | /* Set address */ | |
e960fc5c | 424 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
425 | /* Write data */ | |
426 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
427 | /* Set address */ | |
541ae68f | 428 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
429 | /* Write data */ | |
430 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
431 | /* Done */ | |
432 | END_SIGN | |
433 | }; | |
434 | ||
f71e1309 | 435 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 436 | /* Set address */ |
1da177e4 | 437 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
438 | /* Write data */ |
439 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
440 | /* Set address */ | |
441 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
442 | /* Write data */ | |
443 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
444 | /* Set address */ | |
1da177e4 | 445 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
446 | /* Write data */ |
447 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
448 | END_SIGN |
449 | }; | |
450 | ||
20346722 | 451 | /* |
1da177e4 LT |
452 | * Constants for Fixing the MacAddress problem seen mostly on |
453 | * Alpha machines. | |
454 | */ | |
f71e1309 | 455 | static const u64 fix_mac[] = { |
1da177e4 LT |
456 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
457 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
458 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
459 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
460 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
461 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
462 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
463 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
464 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
465 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
466 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
467 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
468 | 0x0020600000000000ULL, 0x0000600000000000ULL, | |
469 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
470 | END_SIGN | |
471 | }; | |
472 | ||
b41477f3 AR |
473 | MODULE_LICENSE("GPL"); |
474 | MODULE_VERSION(DRV_VERSION); | |
475 | ||
476 | ||
1da177e4 | 477 | /* Module Loadable parameters. */ |
6cfc482b | 478 | S2IO_PARM_INT(tx_fifo_num, FIFO_DEFAULT_NUM); |
b41477f3 | 479 | S2IO_PARM_INT(rx_ring_num, 1); |
3a3d5756 | 480 | S2IO_PARM_INT(multiq, 0); |
b41477f3 AR |
481 | S2IO_PARM_INT(rx_ring_mode, 1); |
482 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
483 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
484 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
485 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
486 | S2IO_PARM_INT(shared_splits, 0); | |
487 | S2IO_PARM_INT(tmac_util_period, 5); | |
488 | S2IO_PARM_INT(rmac_util_period, 5); | |
b41477f3 | 489 | S2IO_PARM_INT(l3l4hdr_size, 128); |
6cfc482b SH |
490 | /* 0 is no steering, 1 is Priority steering, 2 is Default steering */ |
491 | S2IO_PARM_INT(tx_steering_type, TX_DEFAULT_STEERING); | |
303bcb4b | 492 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 493 | S2IO_PARM_INT(rxsync_frequency, 3); |
eccb8628 | 494 | /* Interrupt type. Values can be 0(INTA), 2(MSI_X) */ |
8abc4d5b | 495 | S2IO_PARM_INT(intr_type, 2); |
7d3d0439 | 496 | /* Large receive offload feature */ |
43b7c451 | 497 | |
7d3d0439 RA |
498 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
499 | * aggregation happens until we hit max IP pkt size(64K) | |
500 | */ | |
b41477f3 | 501 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 502 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
503 | |
504 | S2IO_PARM_INT(napi, 1); | |
505 | S2IO_PARM_INT(ufo, 0); | |
926930b2 | 506 | S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC); |
b41477f3 AR |
507 | |
508 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
d44570e4 | 509 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; |
b41477f3 | 510 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = |
d44570e4 | 511 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; |
b41477f3 | 512 | static unsigned int rts_frm_len[MAX_RX_RINGS] = |
d44570e4 | 513 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; |
b41477f3 AR |
514 | |
515 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
516 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
517 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 518 | |
20346722 | 519 | /* |
1da177e4 | 520 | * S2IO device table. |
20346722 | 521 | * This table lists all the devices that this driver supports. |
1da177e4 | 522 | */ |
a3aa1884 | 523 | static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = { |
1da177e4 LT |
524 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, |
525 | PCI_ANY_ID, PCI_ANY_ID}, | |
526 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
527 | PCI_ANY_ID, PCI_ANY_ID}, | |
528 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
d44570e4 JP |
529 | PCI_ANY_ID, PCI_ANY_ID}, |
530 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
531 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
532 | {0,} |
533 | }; | |
534 | ||
535 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
536 | ||
d796fdb7 LV |
537 | static struct pci_error_handlers s2io_err_handler = { |
538 | .error_detected = s2io_io_error_detected, | |
539 | .slot_reset = s2io_io_slot_reset, | |
540 | .resume = s2io_io_resume, | |
541 | }; | |
542 | ||
1da177e4 | 543 | static struct pci_driver s2io_driver = { |
d44570e4 JP |
544 | .name = "S2IO", |
545 | .id_table = s2io_tbl, | |
546 | .probe = s2io_init_nic, | |
547 | .remove = __devexit_p(s2io_rem_nic), | |
548 | .err_handler = &s2io_err_handler, | |
1da177e4 LT |
549 | }; |
550 | ||
551 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
552 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
553 | ||
3a3d5756 SH |
554 | /* netqueue manipulation helper functions */ |
555 | static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp) | |
556 | { | |
fd2ea0a7 DM |
557 | if (!sp->config.multiq) { |
558 | int i; | |
559 | ||
3a3d5756 SH |
560 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
561 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP; | |
3a3d5756 | 562 | } |
fd2ea0a7 | 563 | netif_tx_stop_all_queues(sp->dev); |
3a3d5756 SH |
564 | } |
565 | ||
566 | static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no) | |
567 | { | |
fd2ea0a7 | 568 | if (!sp->config.multiq) |
3a3d5756 SH |
569 | sp->mac_control.fifos[fifo_no].queue_state = |
570 | FIFO_QUEUE_STOP; | |
fd2ea0a7 DM |
571 | |
572 | netif_tx_stop_all_queues(sp->dev); | |
3a3d5756 SH |
573 | } |
574 | ||
575 | static inline void s2io_start_all_tx_queue(struct s2io_nic *sp) | |
576 | { | |
fd2ea0a7 DM |
577 | if (!sp->config.multiq) { |
578 | int i; | |
579 | ||
3a3d5756 SH |
580 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
581 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START; | |
3a3d5756 | 582 | } |
fd2ea0a7 | 583 | netif_tx_start_all_queues(sp->dev); |
3a3d5756 SH |
584 | } |
585 | ||
586 | static inline void s2io_start_tx_queue(struct s2io_nic *sp, int fifo_no) | |
587 | { | |
fd2ea0a7 | 588 | if (!sp->config.multiq) |
3a3d5756 SH |
589 | sp->mac_control.fifos[fifo_no].queue_state = |
590 | FIFO_QUEUE_START; | |
fd2ea0a7 DM |
591 | |
592 | netif_tx_start_all_queues(sp->dev); | |
3a3d5756 SH |
593 | } |
594 | ||
595 | static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp) | |
596 | { | |
fd2ea0a7 DM |
597 | if (!sp->config.multiq) { |
598 | int i; | |
599 | ||
3a3d5756 SH |
600 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
601 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START; | |
3a3d5756 | 602 | } |
fd2ea0a7 | 603 | netif_tx_wake_all_queues(sp->dev); |
3a3d5756 SH |
604 | } |
605 | ||
606 | static inline void s2io_wake_tx_queue( | |
607 | struct fifo_info *fifo, int cnt, u8 multiq) | |
608 | { | |
609 | ||
3a3d5756 SH |
610 | if (multiq) { |
611 | if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no)) | |
612 | netif_wake_subqueue(fifo->dev, fifo->fifo_no); | |
b19fa1fa | 613 | } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) { |
3a3d5756 SH |
614 | if (netif_queue_stopped(fifo->dev)) { |
615 | fifo->queue_state = FIFO_QUEUE_START; | |
616 | netif_wake_queue(fifo->dev); | |
617 | } | |
618 | } | |
619 | } | |
620 | ||
1da177e4 LT |
621 | /** |
622 | * init_shared_mem - Allocation and Initialization of Memory | |
623 | * @nic: Device private variable. | |
20346722 | 624 | * Description: The function allocates all the memory areas shared |
625 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
626 | * Rx descriptors and the statistics block. |
627 | */ | |
628 | ||
629 | static int init_shared_mem(struct s2io_nic *nic) | |
630 | { | |
631 | u32 size; | |
632 | void *tmp_v_addr, *tmp_v_addr_next; | |
633 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 634 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 635 | int i, j, blk_cnt; |
1da177e4 LT |
636 | int lst_size, lst_per_page; |
637 | struct net_device *dev = nic->dev; | |
8ae418cf | 638 | unsigned long tmp; |
1ee6dd77 | 639 | struct buffAdd *ba; |
ffb5df6c JP |
640 | struct config_param *config = &nic->config; |
641 | struct mac_info *mac_control = &nic->mac_control; | |
491976b2 | 642 | unsigned long long mem_allocated = 0; |
1da177e4 | 643 | |
13d866a9 | 644 | /* Allocation and initialization of TXDLs in FIFOs */ |
1da177e4 LT |
645 | size = 0; |
646 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
647 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
648 | ||
649 | size += tx_cfg->fifo_len; | |
1da177e4 LT |
650 | } |
651 | if (size > MAX_AVAILABLE_TXDS) { | |
9e39f7c5 JP |
652 | DBG_PRINT(ERR_DBG, |
653 | "Too many TxDs requested: %d, max supported: %d\n", | |
654 | size, MAX_AVAILABLE_TXDS); | |
b41477f3 | 655 | return -EINVAL; |
1da177e4 LT |
656 | } |
657 | ||
2fda096d SR |
658 | size = 0; |
659 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
660 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
661 | ||
662 | size = tx_cfg->fifo_len; | |
2fda096d SR |
663 | /* |
664 | * Legal values are from 2 to 8192 | |
665 | */ | |
666 | if (size < 2) { | |
9e39f7c5 JP |
667 | DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - " |
668 | "Valid lengths are 2 through 8192\n", | |
669 | i, size); | |
2fda096d SR |
670 | return -EINVAL; |
671 | } | |
672 | } | |
673 | ||
1ee6dd77 | 674 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
675 | lst_per_page = PAGE_SIZE / lst_size; |
676 | ||
677 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
678 | struct fifo_info *fifo = &mac_control->fifos[i]; |
679 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
680 | int fifo_len = tx_cfg->fifo_len; | |
1ee6dd77 | 681 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
13d866a9 JP |
682 | |
683 | fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL); | |
684 | if (!fifo->list_info) { | |
d44570e4 | 685 | DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n"); |
1da177e4 LT |
686 | return -ENOMEM; |
687 | } | |
491976b2 | 688 | mem_allocated += list_holder_size; |
1da177e4 LT |
689 | } |
690 | for (i = 0; i < config->tx_fifo_num; i++) { | |
691 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
692 | lst_per_page); | |
13d866a9 JP |
693 | struct fifo_info *fifo = &mac_control->fifos[i]; |
694 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
695 | ||
696 | fifo->tx_curr_put_info.offset = 0; | |
697 | fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1; | |
698 | fifo->tx_curr_get_info.offset = 0; | |
699 | fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1; | |
700 | fifo->fifo_no = i; | |
701 | fifo->nic = nic; | |
702 | fifo->max_txds = MAX_SKB_FRAGS + 2; | |
703 | fifo->dev = dev; | |
20346722 | 704 | |
1da177e4 LT |
705 | for (j = 0; j < page_num; j++) { |
706 | int k = 0; | |
707 | dma_addr_t tmp_p; | |
708 | void *tmp_v; | |
709 | tmp_v = pci_alloc_consistent(nic->pdev, | |
710 | PAGE_SIZE, &tmp_p); | |
711 | if (!tmp_v) { | |
9e39f7c5 JP |
712 | DBG_PRINT(INFO_DBG, |
713 | "pci_alloc_consistent failed for TxDL\n"); | |
1da177e4 LT |
714 | return -ENOMEM; |
715 | } | |
776bd20f | 716 | /* If we got a zero DMA address(can happen on |
717 | * certain platforms like PPC), reallocate. | |
718 | * Store virtual address of page we don't want, | |
719 | * to be freed later. | |
720 | */ | |
721 | if (!tmp_p) { | |
722 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 723 | DBG_PRINT(INIT_DBG, |
9e39f7c5 JP |
724 | "%s: Zero DMA address for TxDL. " |
725 | "Virtual address %p\n", | |
726 | dev->name, tmp_v); | |
776bd20f | 727 | tmp_v = pci_alloc_consistent(nic->pdev, |
d44570e4 | 728 | PAGE_SIZE, &tmp_p); |
776bd20f | 729 | if (!tmp_v) { |
0c61ed5f | 730 | DBG_PRINT(INFO_DBG, |
9e39f7c5 | 731 | "pci_alloc_consistent failed for TxDL\n"); |
776bd20f | 732 | return -ENOMEM; |
733 | } | |
491976b2 | 734 | mem_allocated += PAGE_SIZE; |
776bd20f | 735 | } |
1da177e4 LT |
736 | while (k < lst_per_page) { |
737 | int l = (j * lst_per_page) + k; | |
13d866a9 | 738 | if (l == tx_cfg->fifo_len) |
20346722 | 739 | break; |
13d866a9 | 740 | fifo->list_info[l].list_virt_addr = |
d44570e4 | 741 | tmp_v + (k * lst_size); |
13d866a9 | 742 | fifo->list_info[l].list_phy_addr = |
d44570e4 | 743 | tmp_p + (k * lst_size); |
1da177e4 LT |
744 | k++; |
745 | } | |
746 | } | |
747 | } | |
1da177e4 | 748 | |
2fda096d | 749 | for (i = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
750 | struct fifo_info *fifo = &mac_control->fifos[i]; |
751 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
752 | ||
753 | size = tx_cfg->fifo_len; | |
754 | fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); | |
755 | if (!fifo->ufo_in_band_v) | |
2fda096d SR |
756 | return -ENOMEM; |
757 | mem_allocated += (size * sizeof(u64)); | |
758 | } | |
fed5eccd | 759 | |
1da177e4 LT |
760 | /* Allocation and initialization of RXDs in Rings */ |
761 | size = 0; | |
762 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
763 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
764 | struct ring_info *ring = &mac_control->rings[i]; | |
765 | ||
766 | if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) { | |
9e39f7c5 JP |
767 | DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a " |
768 | "multiple of RxDs per Block\n", | |
769 | dev->name, i); | |
1da177e4 LT |
770 | return FAILURE; |
771 | } | |
13d866a9 JP |
772 | size += rx_cfg->num_rxd; |
773 | ring->block_count = rx_cfg->num_rxd / | |
d44570e4 | 774 | (rxd_count[nic->rxd_mode] + 1); |
13d866a9 | 775 | ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count; |
1da177e4 | 776 | } |
da6971d8 | 777 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 778 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 779 | else |
1ee6dd77 | 780 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
781 | |
782 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
783 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
784 | struct ring_info *ring = &mac_control->rings[i]; | |
785 | ||
786 | ring->rx_curr_get_info.block_index = 0; | |
787 | ring->rx_curr_get_info.offset = 0; | |
788 | ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1; | |
789 | ring->rx_curr_put_info.block_index = 0; | |
790 | ring->rx_curr_put_info.offset = 0; | |
791 | ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1; | |
792 | ring->nic = nic; | |
793 | ring->ring_no = i; | |
13d866a9 JP |
794 | |
795 | blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
796 | /* Allocating all the Rx blocks */ |
797 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 798 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
799 | int l; |
800 | ||
13d866a9 | 801 | rx_blocks = &ring->rx_blocks[j]; |
d44570e4 | 802 | size = SIZE_OF_BLOCK; /* size is always page size */ |
1da177e4 LT |
803 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
804 | &tmp_p_addr); | |
805 | if (tmp_v_addr == NULL) { | |
806 | /* | |
20346722 | 807 | * In case of failure, free_shared_mem() |
808 | * is called, which should free any | |
809 | * memory that was alloced till the | |
1da177e4 LT |
810 | * failure happened. |
811 | */ | |
da6971d8 | 812 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
813 | return -ENOMEM; |
814 | } | |
491976b2 | 815 | mem_allocated += size; |
1da177e4 | 816 | memset(tmp_v_addr, 0, size); |
4f870320 JP |
817 | |
818 | size = sizeof(struct rxd_info) * | |
819 | rxd_count[nic->rxd_mode]; | |
da6971d8 AR |
820 | rx_blocks->block_virt_addr = tmp_v_addr; |
821 | rx_blocks->block_dma_addr = tmp_p_addr; | |
4f870320 | 822 | rx_blocks->rxds = kmalloc(size, GFP_KERNEL); |
372cc597 SS |
823 | if (!rx_blocks->rxds) |
824 | return -ENOMEM; | |
4f870320 | 825 | mem_allocated += size; |
d44570e4 | 826 | for (l = 0; l < rxd_count[nic->rxd_mode]; l++) { |
da6971d8 AR |
827 | rx_blocks->rxds[l].virt_addr = |
828 | rx_blocks->block_virt_addr + | |
829 | (rxd_size[nic->rxd_mode] * l); | |
830 | rx_blocks->rxds[l].dma_addr = | |
831 | rx_blocks->block_dma_addr + | |
832 | (rxd_size[nic->rxd_mode] * l); | |
833 | } | |
1da177e4 LT |
834 | } |
835 | /* Interlinking all Rx Blocks */ | |
836 | for (j = 0; j < blk_cnt; j++) { | |
13d866a9 JP |
837 | int next = (j + 1) % blk_cnt; |
838 | tmp_v_addr = ring->rx_blocks[j].block_virt_addr; | |
839 | tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr; | |
840 | tmp_p_addr = ring->rx_blocks[j].block_dma_addr; | |
841 | tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr; | |
1da177e4 | 842 | |
d44570e4 | 843 | pre_rxd_blk = (struct RxD_block *)tmp_v_addr; |
1da177e4 | 844 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
d44570e4 | 845 | (unsigned long)tmp_v_addr_next; |
1da177e4 | 846 | pre_rxd_blk->pNext_RxD_Blk_physical = |
d44570e4 | 847 | (u64)tmp_p_addr_next; |
1da177e4 LT |
848 | } |
849 | } | |
6d517a27 | 850 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
851 | /* |
852 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
853 | * and the buffers as well. | |
854 | */ | |
855 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
856 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
857 | struct ring_info *ring = &mac_control->rings[i]; | |
858 | ||
859 | blk_cnt = rx_cfg->num_rxd / | |
d44570e4 | 860 | (rxd_count[nic->rxd_mode] + 1); |
4f870320 JP |
861 | size = sizeof(struct buffAdd *) * blk_cnt; |
862 | ring->ba = kmalloc(size, GFP_KERNEL); | |
13d866a9 | 863 | if (!ring->ba) |
1da177e4 | 864 | return -ENOMEM; |
4f870320 | 865 | mem_allocated += size; |
da6971d8 AR |
866 | for (j = 0; j < blk_cnt; j++) { |
867 | int k = 0; | |
4f870320 JP |
868 | |
869 | size = sizeof(struct buffAdd) * | |
870 | (rxd_count[nic->rxd_mode] + 1); | |
871 | ring->ba[j] = kmalloc(size, GFP_KERNEL); | |
13d866a9 | 872 | if (!ring->ba[j]) |
1da177e4 | 873 | return -ENOMEM; |
4f870320 | 874 | mem_allocated += size; |
da6971d8 | 875 | while (k != rxd_count[nic->rxd_mode]) { |
13d866a9 | 876 | ba = &ring->ba[j][k]; |
4f870320 JP |
877 | size = BUF0_LEN + ALIGN_SIZE; |
878 | ba->ba_0_org = kmalloc(size, GFP_KERNEL); | |
da6971d8 AR |
879 | if (!ba->ba_0_org) |
880 | return -ENOMEM; | |
4f870320 | 881 | mem_allocated += size; |
da6971d8 AR |
882 | tmp = (unsigned long)ba->ba_0_org; |
883 | tmp += ALIGN_SIZE; | |
d44570e4 JP |
884 | tmp &= ~((unsigned long)ALIGN_SIZE); |
885 | ba->ba_0 = (void *)tmp; | |
da6971d8 | 886 | |
4f870320 JP |
887 | size = BUF1_LEN + ALIGN_SIZE; |
888 | ba->ba_1_org = kmalloc(size, GFP_KERNEL); | |
da6971d8 AR |
889 | if (!ba->ba_1_org) |
890 | return -ENOMEM; | |
4f870320 | 891 | mem_allocated += size; |
d44570e4 | 892 | tmp = (unsigned long)ba->ba_1_org; |
da6971d8 | 893 | tmp += ALIGN_SIZE; |
d44570e4 JP |
894 | tmp &= ~((unsigned long)ALIGN_SIZE); |
895 | ba->ba_1 = (void *)tmp; | |
da6971d8 AR |
896 | k++; |
897 | } | |
1da177e4 LT |
898 | } |
899 | } | |
900 | } | |
1da177e4 LT |
901 | |
902 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 903 | size = sizeof(struct stat_block); |
d44570e4 JP |
904 | mac_control->stats_mem = |
905 | pci_alloc_consistent(nic->pdev, size, | |
906 | &mac_control->stats_mem_phy); | |
1da177e4 LT |
907 | |
908 | if (!mac_control->stats_mem) { | |
20346722 | 909 | /* |
910 | * In case of failure, free_shared_mem() is called, which | |
911 | * should free any memory that was alloced till the | |
1da177e4 LT |
912 | * failure happened. |
913 | */ | |
914 | return -ENOMEM; | |
915 | } | |
491976b2 | 916 | mem_allocated += size; |
1da177e4 LT |
917 | mac_control->stats_mem_sz = size; |
918 | ||
919 | tmp_v_addr = mac_control->stats_mem; | |
d44570e4 | 920 | mac_control->stats_info = (struct stat_block *)tmp_v_addr; |
1da177e4 | 921 | memset(tmp_v_addr, 0, size); |
3a22813a BL |
922 | DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n", |
923 | dev_name(&nic->pdev->dev), (unsigned long long)tmp_p_addr); | |
491976b2 | 924 | mac_control->stats_info->sw_stat.mem_allocated += mem_allocated; |
1da177e4 LT |
925 | return SUCCESS; |
926 | } | |
927 | ||
20346722 | 928 | /** |
929 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
930 | * @nic: Device private variable. |
931 | * Description: This function is to free all memory locations allocated by | |
932 | * the init_shared_mem() function and return it to the kernel. | |
933 | */ | |
934 | ||
935 | static void free_shared_mem(struct s2io_nic *nic) | |
936 | { | |
937 | int i, j, blk_cnt, size; | |
938 | void *tmp_v_addr; | |
939 | dma_addr_t tmp_p_addr; | |
1da177e4 | 940 | int lst_size, lst_per_page; |
8910b49f | 941 | struct net_device *dev; |
491976b2 | 942 | int page_num = 0; |
ffb5df6c JP |
943 | struct config_param *config; |
944 | struct mac_info *mac_control; | |
945 | struct stat_block *stats; | |
946 | struct swStat *swstats; | |
1da177e4 LT |
947 | |
948 | if (!nic) | |
949 | return; | |
950 | ||
8910b49f MG |
951 | dev = nic->dev; |
952 | ||
1da177e4 | 953 | config = &nic->config; |
ffb5df6c JP |
954 | mac_control = &nic->mac_control; |
955 | stats = mac_control->stats_info; | |
956 | swstats = &stats->sw_stat; | |
1da177e4 | 957 | |
d44570e4 | 958 | lst_size = sizeof(struct TxD) * config->max_txds; |
1da177e4 LT |
959 | lst_per_page = PAGE_SIZE / lst_size; |
960 | ||
961 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
962 | struct fifo_info *fifo = &mac_control->fifos[i]; |
963 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
964 | ||
965 | page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page); | |
1da177e4 LT |
966 | for (j = 0; j < page_num; j++) { |
967 | int mem_blks = (j * lst_per_page); | |
13d866a9 JP |
968 | struct list_info_hold *fli; |
969 | ||
970 | if (!fifo->list_info) | |
6aa20a22 | 971 | return; |
13d866a9 JP |
972 | |
973 | fli = &fifo->list_info[mem_blks]; | |
974 | if (!fli->list_virt_addr) | |
1da177e4 LT |
975 | break; |
976 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
13d866a9 JP |
977 | fli->list_virt_addr, |
978 | fli->list_phy_addr); | |
ffb5df6c | 979 | swstats->mem_freed += PAGE_SIZE; |
1da177e4 | 980 | } |
776bd20f | 981 | /* If we got a zero DMA address during allocation, |
982 | * free the page now | |
983 | */ | |
984 | if (mac_control->zerodma_virt_addr) { | |
985 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
986 | mac_control->zerodma_virt_addr, | |
987 | (dma_addr_t)0); | |
6aa20a22 | 988 | DBG_PRINT(INIT_DBG, |
9e39f7c5 JP |
989 | "%s: Freeing TxDL with zero DMA address. " |
990 | "Virtual address %p\n", | |
991 | dev->name, mac_control->zerodma_virt_addr); | |
ffb5df6c | 992 | swstats->mem_freed += PAGE_SIZE; |
776bd20f | 993 | } |
13d866a9 | 994 | kfree(fifo->list_info); |
82c2d023 | 995 | swstats->mem_freed += tx_cfg->fifo_len * |
d44570e4 | 996 | sizeof(struct list_info_hold); |
1da177e4 LT |
997 | } |
998 | ||
1da177e4 | 999 | size = SIZE_OF_BLOCK; |
1da177e4 | 1000 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 JP |
1001 | struct ring_info *ring = &mac_control->rings[i]; |
1002 | ||
1003 | blk_cnt = ring->block_count; | |
1da177e4 | 1004 | for (j = 0; j < blk_cnt; j++) { |
13d866a9 JP |
1005 | tmp_v_addr = ring->rx_blocks[j].block_virt_addr; |
1006 | tmp_p_addr = ring->rx_blocks[j].block_dma_addr; | |
1da177e4 LT |
1007 | if (tmp_v_addr == NULL) |
1008 | break; | |
1009 | pci_free_consistent(nic->pdev, size, | |
1010 | tmp_v_addr, tmp_p_addr); | |
ffb5df6c | 1011 | swstats->mem_freed += size; |
13d866a9 | 1012 | kfree(ring->rx_blocks[j].rxds); |
ffb5df6c JP |
1013 | swstats->mem_freed += sizeof(struct rxd_info) * |
1014 | rxd_count[nic->rxd_mode]; | |
1da177e4 LT |
1015 | } |
1016 | } | |
1017 | ||
6d517a27 | 1018 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
1019 | /* Freeing buffer storage addresses in 2BUFF mode. */ |
1020 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
1021 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
1022 | struct ring_info *ring = &mac_control->rings[i]; | |
1023 | ||
1024 | blk_cnt = rx_cfg->num_rxd / | |
1025 | (rxd_count[nic->rxd_mode] + 1); | |
da6971d8 AR |
1026 | for (j = 0; j < blk_cnt; j++) { |
1027 | int k = 0; | |
13d866a9 | 1028 | if (!ring->ba[j]) |
da6971d8 AR |
1029 | continue; |
1030 | while (k != rxd_count[nic->rxd_mode]) { | |
13d866a9 | 1031 | struct buffAdd *ba = &ring->ba[j][k]; |
da6971d8 | 1032 | kfree(ba->ba_0_org); |
ffb5df6c JP |
1033 | swstats->mem_freed += |
1034 | BUF0_LEN + ALIGN_SIZE; | |
da6971d8 | 1035 | kfree(ba->ba_1_org); |
ffb5df6c JP |
1036 | swstats->mem_freed += |
1037 | BUF1_LEN + ALIGN_SIZE; | |
da6971d8 AR |
1038 | k++; |
1039 | } | |
13d866a9 | 1040 | kfree(ring->ba[j]); |
ffb5df6c JP |
1041 | swstats->mem_freed += sizeof(struct buffAdd) * |
1042 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 | 1043 | } |
13d866a9 | 1044 | kfree(ring->ba); |
ffb5df6c JP |
1045 | swstats->mem_freed += sizeof(struct buffAdd *) * |
1046 | blk_cnt; | |
1da177e4 | 1047 | } |
1da177e4 | 1048 | } |
1da177e4 | 1049 | |
2fda096d | 1050 | for (i = 0; i < nic->config.tx_fifo_num; i++) { |
13d866a9 JP |
1051 | struct fifo_info *fifo = &mac_control->fifos[i]; |
1052 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
1053 | ||
1054 | if (fifo->ufo_in_band_v) { | |
ffb5df6c JP |
1055 | swstats->mem_freed += tx_cfg->fifo_len * |
1056 | sizeof(u64); | |
13d866a9 | 1057 | kfree(fifo->ufo_in_band_v); |
2fda096d SR |
1058 | } |
1059 | } | |
1060 | ||
1da177e4 | 1061 | if (mac_control->stats_mem) { |
ffb5df6c | 1062 | swstats->mem_freed += mac_control->stats_mem_sz; |
1da177e4 LT |
1063 | pci_free_consistent(nic->pdev, |
1064 | mac_control->stats_mem_sz, | |
1065 | mac_control->stats_mem, | |
1066 | mac_control->stats_mem_phy); | |
491976b2 | 1067 | } |
1da177e4 LT |
1068 | } |
1069 | ||
541ae68f | 1070 | /** |
1071 | * s2io_verify_pci_mode - | |
1072 | */ | |
1073 | ||
1ee6dd77 | 1074 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 1075 | { |
1ee6dd77 | 1076 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f | 1077 | register u64 val64 = 0; |
1078 | int mode; | |
1079 | ||
1080 | val64 = readq(&bar0->pci_mode); | |
1081 | mode = (u8)GET_PCI_MODE(val64); | |
1082 | ||
d44570e4 | 1083 | if (val64 & PCI_MODE_UNKNOWN_MODE) |
541ae68f | 1084 | return -1; /* Unknown PCI mode */ |
1085 | return mode; | |
1086 | } | |
1087 | ||
c92ca04b AR |
1088 | #define NEC_VENID 0x1033 |
1089 | #define NEC_DEVID 0x0125 | |
1090 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
1091 | { | |
1092 | struct pci_dev *tdev = NULL; | |
26d36b64 AC |
1093 | while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { |
1094 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { | |
7ad62dbc | 1095 | if (tdev->bus == s2io_pdev->bus->parent) { |
26d36b64 | 1096 | pci_dev_put(tdev); |
c92ca04b | 1097 | return 1; |
7ad62dbc | 1098 | } |
c92ca04b AR |
1099 | } |
1100 | } | |
1101 | return 0; | |
1102 | } | |
541ae68f | 1103 | |
7b32a312 | 1104 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f | 1105 | /** |
1106 | * s2io_print_pci_mode - | |
1107 | */ | |
1ee6dd77 | 1108 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 1109 | { |
1ee6dd77 | 1110 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f | 1111 | register u64 val64 = 0; |
1112 | int mode; | |
1113 | struct config_param *config = &nic->config; | |
9e39f7c5 | 1114 | const char *pcimode; |
541ae68f | 1115 | |
1116 | val64 = readq(&bar0->pci_mode); | |
1117 | mode = (u8)GET_PCI_MODE(val64); | |
1118 | ||
d44570e4 | 1119 | if (val64 & PCI_MODE_UNKNOWN_MODE) |
541ae68f | 1120 | return -1; /* Unknown PCI mode */ |
1121 | ||
c92ca04b AR |
1122 | config->bus_speed = bus_speed[mode]; |
1123 | ||
1124 | if (s2io_on_nec_bridge(nic->pdev)) { | |
1125 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
d44570e4 | 1126 | nic->dev->name); |
c92ca04b AR |
1127 | return mode; |
1128 | } | |
1129 | ||
d44570e4 JP |
1130 | switch (mode) { |
1131 | case PCI_MODE_PCI_33: | |
9e39f7c5 | 1132 | pcimode = "33MHz PCI bus"; |
d44570e4 JP |
1133 | break; |
1134 | case PCI_MODE_PCI_66: | |
9e39f7c5 | 1135 | pcimode = "66MHz PCI bus"; |
d44570e4 JP |
1136 | break; |
1137 | case PCI_MODE_PCIX_M1_66: | |
9e39f7c5 | 1138 | pcimode = "66MHz PCIX(M1) bus"; |
d44570e4 JP |
1139 | break; |
1140 | case PCI_MODE_PCIX_M1_100: | |
9e39f7c5 | 1141 | pcimode = "100MHz PCIX(M1) bus"; |
d44570e4 JP |
1142 | break; |
1143 | case PCI_MODE_PCIX_M1_133: | |
9e39f7c5 | 1144 | pcimode = "133MHz PCIX(M1) bus"; |
d44570e4 JP |
1145 | break; |
1146 | case PCI_MODE_PCIX_M2_66: | |
9e39f7c5 | 1147 | pcimode = "133MHz PCIX(M2) bus"; |
d44570e4 JP |
1148 | break; |
1149 | case PCI_MODE_PCIX_M2_100: | |
9e39f7c5 | 1150 | pcimode = "200MHz PCIX(M2) bus"; |
d44570e4 JP |
1151 | break; |
1152 | case PCI_MODE_PCIX_M2_133: | |
9e39f7c5 | 1153 | pcimode = "266MHz PCIX(M2) bus"; |
d44570e4 JP |
1154 | break; |
1155 | default: | |
9e39f7c5 JP |
1156 | pcimode = "unsupported bus!"; |
1157 | mode = -1; | |
541ae68f | 1158 | } |
1159 | ||
9e39f7c5 JP |
1160 | DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n", |
1161 | nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode); | |
1162 | ||
541ae68f | 1163 | return mode; |
1164 | } | |
1165 | ||
b7c5678f RV |
1166 | /** |
1167 | * init_tti - Initialization transmit traffic interrupt scheme | |
1168 | * @nic: device private variable | |
1169 | * @link: link status (UP/DOWN) used to enable/disable continuous | |
1170 | * transmit interrupts | |
1171 | * Description: The function configures transmit traffic interrupts | |
1172 | * Return Value: SUCCESS on success and | |
1173 | * '-1' on failure | |
1174 | */ | |
1175 | ||
0d66afe7 | 1176 | static int init_tti(struct s2io_nic *nic, int link) |
b7c5678f RV |
1177 | { |
1178 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
1179 | register u64 val64 = 0; | |
1180 | int i; | |
ffb5df6c | 1181 | struct config_param *config = &nic->config; |
b7c5678f RV |
1182 | |
1183 | for (i = 0; i < config->tx_fifo_num; i++) { | |
1184 | /* | |
1185 | * TTI Initialization. Default Tx timer gets us about | |
1186 | * 250 interrupts per sec. Continuous interrupts are enabled | |
1187 | * by default. | |
1188 | */ | |
1189 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1190 | int count = (nic->config.bus_speed * 125)/2; | |
1191 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1192 | } else | |
1193 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1194 | ||
1195 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
d44570e4 JP |
1196 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
1197 | TTI_DATA1_MEM_TX_URNG_C(0x30) | | |
1198 | TTI_DATA1_MEM_TX_TIMER_AC_EN; | |
ac731ab6 SH |
1199 | if (i == 0) |
1200 | if (use_continuous_tx_intrs && (link == LINK_UP)) | |
1201 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
b7c5678f RV |
1202 | writeq(val64, &bar0->tti_data1_mem); |
1203 | ||
ac731ab6 SH |
1204 | if (nic->config.intr_type == MSI_X) { |
1205 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1206 | TTI_DATA2_MEM_TX_UFC_B(0x100) | | |
1207 | TTI_DATA2_MEM_TX_UFC_C(0x200) | | |
1208 | TTI_DATA2_MEM_TX_UFC_D(0x300); | |
1209 | } else { | |
1210 | if ((nic->config.tx_steering_type == | |
d44570e4 JP |
1211 | TX_DEFAULT_STEERING) && |
1212 | (config->tx_fifo_num > 1) && | |
1213 | (i >= nic->udp_fifo_idx) && | |
1214 | (i < (nic->udp_fifo_idx + | |
1215 | nic->total_udp_fifos))) | |
ac731ab6 SH |
1216 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) | |
1217 | TTI_DATA2_MEM_TX_UFC_B(0x80) | | |
1218 | TTI_DATA2_MEM_TX_UFC_C(0x100) | | |
1219 | TTI_DATA2_MEM_TX_UFC_D(0x120); | |
1220 | else | |
1221 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1222 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
1223 | TTI_DATA2_MEM_TX_UFC_C(0x40) | | |
1224 | TTI_DATA2_MEM_TX_UFC_D(0x80); | |
1225 | } | |
b7c5678f RV |
1226 | |
1227 | writeq(val64, &bar0->tti_data2_mem); | |
1228 | ||
d44570e4 JP |
1229 | val64 = TTI_CMD_MEM_WE | |
1230 | TTI_CMD_MEM_STROBE_NEW_CMD | | |
1231 | TTI_CMD_MEM_OFFSET(i); | |
b7c5678f RV |
1232 | writeq(val64, &bar0->tti_command_mem); |
1233 | ||
1234 | if (wait_for_cmd_complete(&bar0->tti_command_mem, | |
d44570e4 JP |
1235 | TTI_CMD_MEM_STROBE_NEW_CMD, |
1236 | S2IO_BIT_RESET) != SUCCESS) | |
b7c5678f RV |
1237 | return FAILURE; |
1238 | } | |
1239 | ||
1240 | return SUCCESS; | |
1241 | } | |
1242 | ||
20346722 | 1243 | /** |
1244 | * init_nic - Initialization of hardware | |
b7c5678f | 1245 | * @nic: device private variable |
20346722 | 1246 | * Description: The function sequentially configures every block |
1247 | * of the H/W from their reset values. | |
1248 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
1249 | * '-1' on failure (endian settings incorrect). |
1250 | */ | |
1251 | ||
1252 | static int init_nic(struct s2io_nic *nic) | |
1253 | { | |
1ee6dd77 | 1254 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1255 | struct net_device *dev = nic->dev; |
1256 | register u64 val64 = 0; | |
1257 | void __iomem *add; | |
1258 | u32 time; | |
1259 | int i, j; | |
c92ca04b | 1260 | int dtx_cnt = 0; |
1da177e4 | 1261 | unsigned long long mem_share; |
20346722 | 1262 | int mem_size; |
ffb5df6c JP |
1263 | struct config_param *config = &nic->config; |
1264 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 | 1265 | |
5e25b9dd | 1266 | /* to set the swapper controle on the card */ |
d44570e4 JP |
1267 | if (s2io_set_swapper(nic)) { |
1268 | DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n"); | |
9f74ffde | 1269 | return -EIO; |
1da177e4 LT |
1270 | } |
1271 | ||
541ae68f | 1272 | /* |
1273 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
1274 | */ | |
1275 | if (nic->device_type & XFRAME_II_DEVICE) { | |
1276 | val64 = 0xA500000000ULL; | |
1277 | writeq(val64, &bar0->sw_reset); | |
1278 | msleep(500); | |
1279 | val64 = readq(&bar0->sw_reset); | |
1280 | } | |
1281 | ||
1da177e4 LT |
1282 | /* Remove XGXS from reset state */ |
1283 | val64 = 0; | |
1284 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 1285 | msleep(500); |
20346722 | 1286 | val64 = readq(&bar0->sw_reset); |
1da177e4 | 1287 | |
7962024e SH |
1288 | /* Ensure that it's safe to access registers by checking |
1289 | * RIC_RUNNING bit is reset. Check is valid only for XframeII. | |
1290 | */ | |
1291 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1292 | for (i = 0; i < 50; i++) { | |
1293 | val64 = readq(&bar0->adapter_status); | |
1294 | if (!(val64 & ADAPTER_STATUS_RIC_RUNNING)) | |
1295 | break; | |
1296 | msleep(10); | |
1297 | } | |
1298 | if (i == 50) | |
1299 | return -ENODEV; | |
1300 | } | |
1301 | ||
1da177e4 LT |
1302 | /* Enable Receiving broadcasts */ |
1303 | add = &bar0->mac_cfg; | |
1304 | val64 = readq(&bar0->mac_cfg); | |
1305 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
1306 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 1307 | writel((u32)val64, add); |
1da177e4 LT |
1308 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
1309 | writel((u32) (val64 >> 32), (add + 4)); | |
1310 | ||
1311 | /* Read registers in all blocks */ | |
1312 | val64 = readq(&bar0->mac_int_mask); | |
1313 | val64 = readq(&bar0->mc_int_mask); | |
1314 | val64 = readq(&bar0->xgxs_int_mask); | |
1315 | ||
1316 | /* Set MTU */ | |
1317 | val64 = dev->mtu; | |
1318 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
1319 | ||
541ae68f | 1320 | if (nic->device_type & XFRAME_II_DEVICE) { |
1321 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 1322 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 1323 | &bar0->dtx_control, UF); |
541ae68f | 1324 | if (dtx_cnt & 0x1) |
1325 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1326 | dtx_cnt++; |
1327 | } | |
541ae68f | 1328 | } else { |
c92ca04b AR |
1329 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1330 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1331 | &bar0->dtx_control, UF); | |
1332 | val64 = readq(&bar0->dtx_control); | |
1333 | dtx_cnt++; | |
1da177e4 LT |
1334 | } |
1335 | } | |
1336 | ||
1337 | /* Tx DMA Initialization */ | |
1338 | val64 = 0; | |
1339 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1340 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1341 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1342 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1343 | ||
1da177e4 | 1344 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
1345 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
1346 | ||
1347 | val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) | | |
1348 | vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3); | |
1da177e4 LT |
1349 | |
1350 | if (i == (config->tx_fifo_num - 1)) { | |
1351 | if (i % 2 == 0) | |
1352 | i++; | |
1353 | } | |
1354 | ||
1355 | switch (i) { | |
1356 | case 1: | |
1357 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1358 | val64 = 0; | |
b7c5678f | 1359 | j = 0; |
1da177e4 LT |
1360 | break; |
1361 | case 3: | |
1362 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1363 | val64 = 0; | |
b7c5678f | 1364 | j = 0; |
1da177e4 LT |
1365 | break; |
1366 | case 5: | |
1367 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1368 | val64 = 0; | |
b7c5678f | 1369 | j = 0; |
1da177e4 LT |
1370 | break; |
1371 | case 7: | |
1372 | writeq(val64, &bar0->tx_fifo_partition_3); | |
b7c5678f RV |
1373 | val64 = 0; |
1374 | j = 0; | |
1375 | break; | |
1376 | default: | |
1377 | j++; | |
1da177e4 LT |
1378 | break; |
1379 | } | |
1380 | } | |
1381 | ||
5e25b9dd | 1382 | /* |
1383 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1384 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1385 | */ | |
d44570e4 | 1386 | if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4)) |
5e25b9dd | 1387 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1388 | ||
1da177e4 LT |
1389 | val64 = readq(&bar0->tx_fifo_partition_0); |
1390 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
d44570e4 | 1391 | &bar0->tx_fifo_partition_0, (unsigned long long)val64); |
1da177e4 | 1392 | |
20346722 | 1393 | /* |
1394 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1395 | * integrity checking. |
1396 | */ | |
1397 | val64 = readq(&bar0->tx_pa_cfg); | |
d44570e4 JP |
1398 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | |
1399 | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1400 | TX_PA_CFG_IGNORE_LLC_CTRL | | |
1401 | TX_PA_CFG_IGNORE_L2_ERR; | |
1da177e4 LT |
1402 | writeq(val64, &bar0->tx_pa_cfg); |
1403 | ||
1404 | /* Rx DMA intialization. */ | |
1405 | val64 = 0; | |
1406 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
1407 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
1408 | ||
1409 | val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3); | |
1da177e4 LT |
1410 | } |
1411 | writeq(val64, &bar0->rx_queue_priority); | |
1412 | ||
20346722 | 1413 | /* |
1414 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1415 | * configured Rings. |
1416 | */ | |
1417 | val64 = 0; | |
541ae68f | 1418 | if (nic->device_type & XFRAME_II_DEVICE) |
1419 | mem_size = 32; | |
1420 | else | |
1421 | mem_size = 64; | |
1422 | ||
1da177e4 LT |
1423 | for (i = 0; i < config->rx_ring_num; i++) { |
1424 | switch (i) { | |
1425 | case 0: | |
20346722 | 1426 | mem_share = (mem_size / config->rx_ring_num + |
1427 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1428 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1429 | continue; | |
1430 | case 1: | |
20346722 | 1431 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1432 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1433 | continue; | |
1434 | case 2: | |
20346722 | 1435 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1436 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1437 | continue; | |
1438 | case 3: | |
20346722 | 1439 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1440 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1441 | continue; | |
1442 | case 4: | |
20346722 | 1443 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1444 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1445 | continue; | |
1446 | case 5: | |
20346722 | 1447 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1448 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1449 | continue; | |
1450 | case 6: | |
20346722 | 1451 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1452 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1453 | continue; | |
1454 | case 7: | |
20346722 | 1455 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1456 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1457 | continue; | |
1458 | } | |
1459 | } | |
1460 | writeq(val64, &bar0->rx_queue_cfg); | |
1461 | ||
20346722 | 1462 | /* |
5e25b9dd | 1463 | * Filling Tx round robin registers |
b7c5678f | 1464 | * as per the number of FIFOs for equal scheduling priority |
1da177e4 | 1465 | */ |
5e25b9dd | 1466 | switch (config->tx_fifo_num) { |
1467 | case 1: | |
b7c5678f | 1468 | val64 = 0x0; |
5e25b9dd | 1469 | writeq(val64, &bar0->tx_w_round_robin_0); |
1470 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1471 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1472 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1473 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1474 | break; | |
1475 | case 2: | |
b7c5678f | 1476 | val64 = 0x0001000100010001ULL; |
5e25b9dd | 1477 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1478 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1479 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1480 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1481 | val64 = 0x0001000100000000ULL; |
5e25b9dd | 1482 | writeq(val64, &bar0->tx_w_round_robin_4); |
1483 | break; | |
1484 | case 3: | |
b7c5678f | 1485 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1486 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1487 | val64 = 0x0200010200010200ULL; |
5e25b9dd | 1488 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1489 | val64 = 0x0102000102000102ULL; |
5e25b9dd | 1490 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1491 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1492 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1493 | val64 = 0x0200010200000000ULL; |
5e25b9dd | 1494 | writeq(val64, &bar0->tx_w_round_robin_4); |
1495 | break; | |
1496 | case 4: | |
b7c5678f | 1497 | val64 = 0x0001020300010203ULL; |
5e25b9dd | 1498 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1499 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1500 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1501 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1502 | val64 = 0x0001020300000000ULL; |
5e25b9dd | 1503 | writeq(val64, &bar0->tx_w_round_robin_4); |
1504 | break; | |
1505 | case 5: | |
b7c5678f | 1506 | val64 = 0x0001020304000102ULL; |
5e25b9dd | 1507 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1508 | val64 = 0x0304000102030400ULL; |
5e25b9dd | 1509 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1510 | val64 = 0x0102030400010203ULL; |
5e25b9dd | 1511 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1512 | val64 = 0x0400010203040001ULL; |
5e25b9dd | 1513 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1514 | val64 = 0x0203040000000000ULL; |
5e25b9dd | 1515 | writeq(val64, &bar0->tx_w_round_robin_4); |
1516 | break; | |
1517 | case 6: | |
b7c5678f | 1518 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1519 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1520 | val64 = 0x0203040500010203ULL; |
5e25b9dd | 1521 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1522 | val64 = 0x0405000102030405ULL; |
5e25b9dd | 1523 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1524 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1525 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1526 | val64 = 0x0203040500000000ULL; |
5e25b9dd | 1527 | writeq(val64, &bar0->tx_w_round_robin_4); |
1528 | break; | |
1529 | case 7: | |
b7c5678f | 1530 | val64 = 0x0001020304050600ULL; |
5e25b9dd | 1531 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1532 | val64 = 0x0102030405060001ULL; |
5e25b9dd | 1533 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1534 | val64 = 0x0203040506000102ULL; |
5e25b9dd | 1535 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1536 | val64 = 0x0304050600010203ULL; |
5e25b9dd | 1537 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1538 | val64 = 0x0405060000000000ULL; |
5e25b9dd | 1539 | writeq(val64, &bar0->tx_w_round_robin_4); |
1540 | break; | |
1541 | case 8: | |
b7c5678f | 1542 | val64 = 0x0001020304050607ULL; |
5e25b9dd | 1543 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1544 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1545 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1546 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1547 | val64 = 0x0001020300000000ULL; |
5e25b9dd | 1548 | writeq(val64, &bar0->tx_w_round_robin_4); |
1549 | break; | |
1550 | } | |
1551 | ||
b41477f3 | 1552 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1553 | val64 = readq(&bar0->tx_fifo_partition_0); |
1554 | val64 |= (TX_FIFO_PARTITION_EN); | |
1555 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1556 | ||
5e25b9dd | 1557 | /* Filling the Rx round robin registers as per the |
0425b46a SH |
1558 | * number of Rings and steering based on QoS with |
1559 | * equal priority. | |
1560 | */ | |
5e25b9dd | 1561 | switch (config->rx_ring_num) { |
1562 | case 1: | |
0425b46a SH |
1563 | val64 = 0x0; |
1564 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1565 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1566 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1567 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1568 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1569 | ||
5e25b9dd | 1570 | val64 = 0x8080808080808080ULL; |
1571 | writeq(val64, &bar0->rts_qos_steering); | |
1572 | break; | |
1573 | case 2: | |
0425b46a | 1574 | val64 = 0x0001000100010001ULL; |
5e25b9dd | 1575 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1576 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1577 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1578 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1579 | val64 = 0x0001000100000000ULL; |
5e25b9dd | 1580 | writeq(val64, &bar0->rx_w_round_robin_4); |
1581 | ||
1582 | val64 = 0x8080808040404040ULL; | |
1583 | writeq(val64, &bar0->rts_qos_steering); | |
1584 | break; | |
1585 | case 3: | |
0425b46a | 1586 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1587 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1588 | val64 = 0x0200010200010200ULL; |
5e25b9dd | 1589 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1590 | val64 = 0x0102000102000102ULL; |
5e25b9dd | 1591 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1592 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1593 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1594 | val64 = 0x0200010200000000ULL; |
5e25b9dd | 1595 | writeq(val64, &bar0->rx_w_round_robin_4); |
1596 | ||
1597 | val64 = 0x8080804040402020ULL; | |
1598 | writeq(val64, &bar0->rts_qos_steering); | |
1599 | break; | |
1600 | case 4: | |
0425b46a | 1601 | val64 = 0x0001020300010203ULL; |
5e25b9dd | 1602 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1603 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1604 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1605 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1606 | val64 = 0x0001020300000000ULL; |
5e25b9dd | 1607 | writeq(val64, &bar0->rx_w_round_robin_4); |
1608 | ||
1609 | val64 = 0x8080404020201010ULL; | |
1610 | writeq(val64, &bar0->rts_qos_steering); | |
1611 | break; | |
1612 | case 5: | |
0425b46a | 1613 | val64 = 0x0001020304000102ULL; |
5e25b9dd | 1614 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1615 | val64 = 0x0304000102030400ULL; |
5e25b9dd | 1616 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1617 | val64 = 0x0102030400010203ULL; |
5e25b9dd | 1618 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1619 | val64 = 0x0400010203040001ULL; |
5e25b9dd | 1620 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1621 | val64 = 0x0203040000000000ULL; |
5e25b9dd | 1622 | writeq(val64, &bar0->rx_w_round_robin_4); |
1623 | ||
1624 | val64 = 0x8080404020201008ULL; | |
1625 | writeq(val64, &bar0->rts_qos_steering); | |
1626 | break; | |
1627 | case 6: | |
0425b46a | 1628 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1629 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1630 | val64 = 0x0203040500010203ULL; |
5e25b9dd | 1631 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1632 | val64 = 0x0405000102030405ULL; |
5e25b9dd | 1633 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1634 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1635 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1636 | val64 = 0x0203040500000000ULL; |
5e25b9dd | 1637 | writeq(val64, &bar0->rx_w_round_robin_4); |
1638 | ||
1639 | val64 = 0x8080404020100804ULL; | |
1640 | writeq(val64, &bar0->rts_qos_steering); | |
1641 | break; | |
1642 | case 7: | |
0425b46a | 1643 | val64 = 0x0001020304050600ULL; |
5e25b9dd | 1644 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1645 | val64 = 0x0102030405060001ULL; |
5e25b9dd | 1646 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1647 | val64 = 0x0203040506000102ULL; |
5e25b9dd | 1648 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1649 | val64 = 0x0304050600010203ULL; |
5e25b9dd | 1650 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1651 | val64 = 0x0405060000000000ULL; |
5e25b9dd | 1652 | writeq(val64, &bar0->rx_w_round_robin_4); |
1653 | ||
1654 | val64 = 0x8080402010080402ULL; | |
1655 | writeq(val64, &bar0->rts_qos_steering); | |
1656 | break; | |
1657 | case 8: | |
0425b46a | 1658 | val64 = 0x0001020304050607ULL; |
5e25b9dd | 1659 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1660 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1661 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1662 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1663 | val64 = 0x0001020300000000ULL; |
5e25b9dd | 1664 | writeq(val64, &bar0->rx_w_round_robin_4); |
1665 | ||
1666 | val64 = 0x8040201008040201ULL; | |
1667 | writeq(val64, &bar0->rts_qos_steering); | |
1668 | break; | |
1669 | } | |
1da177e4 LT |
1670 | |
1671 | /* UDP Fix */ | |
1672 | val64 = 0; | |
20346722 | 1673 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1674 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1675 | ||
5e25b9dd | 1676 | /* Set the default rts frame length for the rings configured */ |
1677 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1678 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1679 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1680 | ||
1681 | /* Set the frame length for the configured rings | |
1682 | * desired by the user | |
1683 | */ | |
1684 | for (i = 0; i < config->rx_ring_num; i++) { | |
1685 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1686 | * specified frame length steering. | |
1687 | * If the user provides the frame length then program | |
1688 | * the rts_frm_len register for those values or else | |
1689 | * leave it as it is. | |
1690 | */ | |
1691 | if (rts_frm_len[i] != 0) { | |
1692 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
d44570e4 | 1693 | &bar0->rts_frm_len_n[i]); |
5e25b9dd | 1694 | } |
1695 | } | |
8a4bdbaa | 1696 | |
9fc93a41 SS |
1697 | /* Disable differentiated services steering logic */ |
1698 | for (i = 0; i < 64; i++) { | |
1699 | if (rts_ds_steer(nic, i, 0) == FAILURE) { | |
9e39f7c5 JP |
1700 | DBG_PRINT(ERR_DBG, |
1701 | "%s: rts_ds_steer failed on codepoint %d\n", | |
1702 | dev->name, i); | |
9f74ffde | 1703 | return -ENODEV; |
9fc93a41 SS |
1704 | } |
1705 | } | |
1706 | ||
20346722 | 1707 | /* Program statistics memory */ |
1da177e4 | 1708 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1709 | |
541ae68f | 1710 | if (nic->device_type == XFRAME_II_DEVICE) { |
1711 | val64 = STAT_BC(0x320); | |
1712 | writeq(val64, &bar0->stat_byte_cnt); | |
1713 | } | |
1714 | ||
20346722 | 1715 | /* |
1da177e4 LT |
1716 | * Initializing the sampling rate for the device to calculate the |
1717 | * bandwidth utilization. | |
1718 | */ | |
1719 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
d44570e4 | 1720 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); |
1da177e4 LT |
1721 | writeq(val64, &bar0->mac_link_util); |
1722 | ||
20346722 | 1723 | /* |
1724 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1725 | * Scheme. |
1726 | */ | |
1da177e4 | 1727 | |
b7c5678f RV |
1728 | /* Initialize TTI */ |
1729 | if (SUCCESS != init_tti(nic, nic->last_link_state)) | |
1730 | return -ENODEV; | |
1da177e4 | 1731 | |
8a4bdbaa SS |
1732 | /* RTI Initialization */ |
1733 | if (nic->device_type == XFRAME_II_DEVICE) { | |
541ae68f | 1734 | /* |
8a4bdbaa SS |
1735 | * Programmed to generate Apprx 500 Intrs per |
1736 | * second | |
1737 | */ | |
1738 | int count = (nic->config.bus_speed * 125)/4; | |
1739 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1740 | } else | |
1741 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1742 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
d44570e4 JP |
1743 | RTI_DATA1_MEM_RX_URNG_B(0x10) | |
1744 | RTI_DATA1_MEM_RX_URNG_C(0x30) | | |
1745 | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
8a4bdbaa SS |
1746 | |
1747 | writeq(val64, &bar0->rti_data1_mem); | |
1748 | ||
1749 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | | |
1750 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; | |
1751 | if (nic->config.intr_type == MSI_X) | |
d44570e4 JP |
1752 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | |
1753 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
8a4bdbaa | 1754 | else |
d44570e4 JP |
1755 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | |
1756 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
8a4bdbaa | 1757 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1758 | |
8a4bdbaa | 1759 | for (i = 0; i < config->rx_ring_num; i++) { |
d44570e4 JP |
1760 | val64 = RTI_CMD_MEM_WE | |
1761 | RTI_CMD_MEM_STROBE_NEW_CMD | | |
1762 | RTI_CMD_MEM_OFFSET(i); | |
8a4bdbaa | 1763 | writeq(val64, &bar0->rti_command_mem); |
1da177e4 | 1764 | |
8a4bdbaa SS |
1765 | /* |
1766 | * Once the operation completes, the Strobe bit of the | |
1767 | * command register will be reset. We poll for this | |
1768 | * particular condition. We wait for a maximum of 500ms | |
1769 | * for the operation to complete, if it's not complete | |
1770 | * by then we return error. | |
1771 | */ | |
1772 | time = 0; | |
f957bcf0 | 1773 | while (true) { |
8a4bdbaa SS |
1774 | val64 = readq(&bar0->rti_command_mem); |
1775 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) | |
1776 | break; | |
b6e3f982 | 1777 | |
8a4bdbaa | 1778 | if (time > 10) { |
9e39f7c5 | 1779 | DBG_PRINT(ERR_DBG, "%s: RTI init failed\n", |
8a4bdbaa | 1780 | dev->name); |
9f74ffde | 1781 | return -ENODEV; |
b6e3f982 | 1782 | } |
8a4bdbaa SS |
1783 | time++; |
1784 | msleep(50); | |
1da177e4 | 1785 | } |
1da177e4 LT |
1786 | } |
1787 | ||
20346722 | 1788 | /* |
1789 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1790 | * the 8 Queues on Rx side. |
1791 | */ | |
1792 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1793 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1794 | ||
1795 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1796 | add = &bar0->mac_cfg; |
1da177e4 LT |
1797 | val64 = readq(&bar0->mac_cfg); |
1798 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1799 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1800 | writel((u32) (val64), add); | |
1801 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1802 | writel((u32) (val64 >> 32), (add + 4)); | |
1803 | val64 = readq(&bar0->mac_cfg); | |
1804 | ||
7d3d0439 RA |
1805 | /* Enable FCS stripping by adapter */ |
1806 | add = &bar0->mac_cfg; | |
1807 | val64 = readq(&bar0->mac_cfg); | |
1808 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1809 | if (nic->device_type == XFRAME_II_DEVICE) | |
1810 | writeq(val64, &bar0->mac_cfg); | |
1811 | else { | |
1812 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1813 | writel((u32) (val64), add); | |
1814 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1815 | writel((u32) (val64 >> 32), (add + 4)); | |
1816 | } | |
1817 | ||
20346722 | 1818 | /* |
1819 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1820 | * generated by xena. |
1821 | */ | |
1822 | val64 = readq(&bar0->rmac_pause_cfg); | |
1823 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1824 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1825 | writeq(val64, &bar0->rmac_pause_cfg); | |
1826 | ||
20346722 | 1827 | /* |
1da177e4 LT |
1828 | * Set the Threshold Limit for Generating the pause frame |
1829 | * If the amount of data in any Queue exceeds ratio of | |
1830 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1831 | * pause frame is generated | |
1832 | */ | |
1833 | val64 = 0; | |
1834 | for (i = 0; i < 4; i++) { | |
d44570e4 JP |
1835 | val64 |= (((u64)0xFF00 | |
1836 | nic->mac_control.mc_pause_threshold_q0q3) | |
1837 | << (i * 2 * 8)); | |
1da177e4 LT |
1838 | } |
1839 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1840 | ||
1841 | val64 = 0; | |
1842 | for (i = 0; i < 4; i++) { | |
d44570e4 JP |
1843 | val64 |= (((u64)0xFF00 | |
1844 | nic->mac_control.mc_pause_threshold_q4q7) | |
1845 | << (i * 2 * 8)); | |
1da177e4 LT |
1846 | } |
1847 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1848 | ||
20346722 | 1849 | /* |
1850 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1851 | * exceeded the limit pointed by shared_splits |
1852 | */ | |
1853 | val64 = readq(&bar0->pic_control); | |
1854 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1855 | writeq(val64, &bar0->pic_control); | |
1856 | ||
863c11a9 AR |
1857 | if (nic->config.bus_speed == 266) { |
1858 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1859 | writeq(0x0, &bar0->read_retry_delay); | |
1860 | writeq(0x0, &bar0->write_retry_delay); | |
1861 | } | |
1862 | ||
541ae68f | 1863 | /* |
1864 | * Programming the Herc to split every write transaction | |
1865 | * that does not start on an ADB to reduce disconnects. | |
1866 | */ | |
1867 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1868 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1869 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1870 | writeq(val64, &bar0->misc_control); |
1871 | val64 = readq(&bar0->pic_control2); | |
b7b5a128 | 1872 | val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15)); |
863c11a9 | 1873 | writeq(val64, &bar0->pic_control2); |
541ae68f | 1874 | } |
c92ca04b AR |
1875 | if (strstr(nic->product_name, "CX4")) { |
1876 | val64 = TMAC_AVG_IPG(0x17); | |
1877 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d | 1878 | } |
1879 | ||
1da177e4 LT |
1880 | return SUCCESS; |
1881 | } | |
a371a07d | 1882 | #define LINK_UP_DOWN_INTERRUPT 1 |
1883 | #define MAC_RMAC_ERR_TIMER 2 | |
1884 | ||
1ee6dd77 | 1885 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d | 1886 | { |
1887 | if (nic->device_type == XFRAME_II_DEVICE) | |
1888 | return LINK_UP_DOWN_INTERRUPT; | |
1889 | else | |
1890 | return MAC_RMAC_ERR_TIMER; | |
1891 | } | |
8116f3cf | 1892 | |
9caab458 SS |
1893 | /** |
1894 | * do_s2io_write_bits - update alarm bits in alarm register | |
1895 | * @value: alarm bits | |
1896 | * @flag: interrupt status | |
1897 | * @addr: address value | |
1898 | * Description: update alarm bits in alarm register | |
1899 | * Return Value: | |
1900 | * NONE. | |
1901 | */ | |
1902 | static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr) | |
1903 | { | |
1904 | u64 temp64; | |
1905 | ||
1906 | temp64 = readq(addr); | |
1907 | ||
d44570e4 JP |
1908 | if (flag == ENABLE_INTRS) |
1909 | temp64 &= ~((u64)value); | |
9caab458 | 1910 | else |
d44570e4 | 1911 | temp64 |= ((u64)value); |
9caab458 SS |
1912 | writeq(temp64, addr); |
1913 | } | |
1da177e4 | 1914 | |
43b7c451 | 1915 | static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag) |
9caab458 SS |
1916 | { |
1917 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
1918 | register u64 gen_int_mask = 0; | |
01e16faa | 1919 | u64 interruptible; |
9caab458 | 1920 | |
01e16faa | 1921 | writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask); |
9caab458 | 1922 | if (mask & TX_DMA_INTR) { |
9caab458 SS |
1923 | gen_int_mask |= TXDMA_INT_M; |
1924 | ||
1925 | do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT | | |
d44570e4 JP |
1926 | TXDMA_PCC_INT | TXDMA_TTI_INT | |
1927 | TXDMA_LSO_INT | TXDMA_TPA_INT | | |
1928 | TXDMA_SM_INT, flag, &bar0->txdma_int_mask); | |
9caab458 SS |
1929 | |
1930 | do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM | | |
d44570e4 JP |
1931 | PFC_MISC_0_ERR | PFC_MISC_1_ERR | |
1932 | PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag, | |
1933 | &bar0->pfc_err_mask); | |
9caab458 SS |
1934 | |
1935 | do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM | | |
d44570e4 JP |
1936 | TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR | |
1937 | TDA_PCIX_ERR, flag, &bar0->tda_err_mask); | |
9caab458 SS |
1938 | |
1939 | do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR | | |
d44570e4 JP |
1940 | PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | |
1941 | PCC_N_SERR | PCC_6_COF_OV_ERR | | |
1942 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | | |
1943 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR | | |
1944 | PCC_TXB_ECC_SG_ERR, | |
1945 | flag, &bar0->pcc_err_mask); | |
9caab458 SS |
1946 | |
1947 | do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR | | |
d44570e4 | 1948 | TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask); |
9caab458 SS |
1949 | |
1950 | do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT | | |
d44570e4 JP |
1951 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM | |
1952 | LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
1953 | flag, &bar0->lso_err_mask); | |
9caab458 SS |
1954 | |
1955 | do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP, | |
d44570e4 | 1956 | flag, &bar0->tpa_err_mask); |
9caab458 SS |
1957 | |
1958 | do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask); | |
9caab458 SS |
1959 | } |
1960 | ||
1961 | if (mask & TX_MAC_INTR) { | |
1962 | gen_int_mask |= TXMAC_INT_M; | |
1963 | do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag, | |
d44570e4 | 1964 | &bar0->mac_int_mask); |
9caab458 | 1965 | do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR | |
d44570e4 JP |
1966 | TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | |
1967 | TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR, | |
1968 | flag, &bar0->mac_tmac_err_mask); | |
9caab458 SS |
1969 | } |
1970 | ||
1971 | if (mask & TX_XGXS_INTR) { | |
1972 | gen_int_mask |= TXXGXS_INT_M; | |
1973 | do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag, | |
d44570e4 | 1974 | &bar0->xgxs_int_mask); |
9caab458 | 1975 | do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR | |
d44570e4 JP |
1976 | TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, |
1977 | flag, &bar0->xgxs_txgxs_err_mask); | |
9caab458 SS |
1978 | } |
1979 | ||
1980 | if (mask & RX_DMA_INTR) { | |
1981 | gen_int_mask |= RXDMA_INT_M; | |
1982 | do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M | | |
d44570e4 JP |
1983 | RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M, |
1984 | flag, &bar0->rxdma_int_mask); | |
9caab458 | 1985 | do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR | |
d44570e4 JP |
1986 | RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM | |
1987 | RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR | | |
1988 | RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask); | |
9caab458 | 1989 | do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn | |
d44570e4 JP |
1990 | PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn | |
1991 | PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag, | |
1992 | &bar0->prc_pcix_err_mask); | |
9caab458 | 1993 | do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR | |
d44570e4 JP |
1994 | RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag, |
1995 | &bar0->rpa_err_mask); | |
9caab458 | 1996 | do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR | |
d44570e4 JP |
1997 | RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM | |
1998 | RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR | | |
1999 | RDA_FRM_ECC_SG_ERR | | |
2000 | RDA_MISC_ERR|RDA_PCIX_ERR, | |
2001 | flag, &bar0->rda_err_mask); | |
9caab458 | 2002 | do_s2io_write_bits(RTI_SM_ERR_ALARM | |
d44570e4 JP |
2003 | RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, |
2004 | flag, &bar0->rti_err_mask); | |
9caab458 SS |
2005 | } |
2006 | ||
2007 | if (mask & RX_MAC_INTR) { | |
2008 | gen_int_mask |= RXMAC_INT_M; | |
2009 | do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag, | |
d44570e4 JP |
2010 | &bar0->mac_int_mask); |
2011 | interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR | | |
2012 | RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR | | |
2013 | RMAC_DOUBLE_ECC_ERR); | |
01e16faa SH |
2014 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) |
2015 | interruptible |= RMAC_LINK_STATE_CHANGE_INT; | |
2016 | do_s2io_write_bits(interruptible, | |
d44570e4 | 2017 | flag, &bar0->mac_rmac_err_mask); |
9caab458 SS |
2018 | } |
2019 | ||
d44570e4 | 2020 | if (mask & RX_XGXS_INTR) { |
9caab458 SS |
2021 | gen_int_mask |= RXXGXS_INT_M; |
2022 | do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag, | |
d44570e4 | 2023 | &bar0->xgxs_int_mask); |
9caab458 | 2024 | do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag, |
d44570e4 | 2025 | &bar0->xgxs_rxgxs_err_mask); |
9caab458 SS |
2026 | } |
2027 | ||
2028 | if (mask & MC_INTR) { | |
2029 | gen_int_mask |= MC_INT_M; | |
d44570e4 JP |
2030 | do_s2io_write_bits(MC_INT_MASK_MC_INT, |
2031 | flag, &bar0->mc_int_mask); | |
9caab458 | 2032 | do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG | |
d44570e4 JP |
2033 | MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag, |
2034 | &bar0->mc_err_mask); | |
9caab458 SS |
2035 | } |
2036 | nic->general_int_mask = gen_int_mask; | |
2037 | ||
2038 | /* Remove this line when alarm interrupts are enabled */ | |
2039 | nic->general_int_mask = 0; | |
2040 | } | |
d44570e4 | 2041 | |
20346722 | 2042 | /** |
2043 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
2044 | * @nic: device private variable, |
2045 | * @mask: A mask indicating which Intr block must be modified and, | |
2046 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
2047 | * Description: This function will either disable or enable the interrupts | |
20346722 | 2048 | * depending on the flag argument. The mask argument can be used to |
2049 | * enable/disable any Intr block. | |
1da177e4 LT |
2050 | * Return Value: NONE. |
2051 | */ | |
2052 | ||
2053 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
2054 | { | |
1ee6dd77 | 2055 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
9caab458 SS |
2056 | register u64 temp64 = 0, intr_mask = 0; |
2057 | ||
2058 | intr_mask = nic->general_int_mask; | |
1da177e4 LT |
2059 | |
2060 | /* Top level interrupt classification */ | |
2061 | /* PIC Interrupts */ | |
9caab458 | 2062 | if (mask & TX_PIC_INTR) { |
1da177e4 | 2063 | /* Enable PIC Intrs in the general intr mask register */ |
9caab458 | 2064 | intr_mask |= TXPIC_INT_M; |
1da177e4 | 2065 | if (flag == ENABLE_INTRS) { |
20346722 | 2066 | /* |
a371a07d | 2067 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 2068 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 | 2069 | * interrupts for now. |
2070 | * TODO | |
1da177e4 | 2071 | */ |
a371a07d | 2072 | if (s2io_link_fault_indication(nic) == |
d44570e4 | 2073 | LINK_UP_DOWN_INTERRUPT) { |
9caab458 | 2074 | do_s2io_write_bits(PIC_INT_GPIO, flag, |
d44570e4 | 2075 | &bar0->pic_int_mask); |
9caab458 | 2076 | do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag, |
d44570e4 | 2077 | &bar0->gpio_int_mask); |
9caab458 | 2078 | } else |
a371a07d | 2079 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); |
1da177e4 | 2080 | } else if (flag == DISABLE_INTRS) { |
20346722 | 2081 | /* |
2082 | * Disable PIC Intrs in the general | |
2083 | * intr mask register | |
1da177e4 LT |
2084 | */ |
2085 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1da177e4 LT |
2086 | } |
2087 | } | |
2088 | ||
1da177e4 LT |
2089 | /* Tx traffic interrupts */ |
2090 | if (mask & TX_TRAFFIC_INTR) { | |
9caab458 | 2091 | intr_mask |= TXTRAFFIC_INT_M; |
1da177e4 | 2092 | if (flag == ENABLE_INTRS) { |
20346722 | 2093 | /* |
1da177e4 | 2094 | * Enable all the Tx side interrupts |
20346722 | 2095 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
2096 | */ |
2097 | writeq(0x0, &bar0->tx_traffic_mask); | |
2098 | } else if (flag == DISABLE_INTRS) { | |
20346722 | 2099 | /* |
2100 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
2101 | * register. |
2102 | */ | |
2103 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1da177e4 LT |
2104 | } |
2105 | } | |
2106 | ||
2107 | /* Rx traffic interrupts */ | |
2108 | if (mask & RX_TRAFFIC_INTR) { | |
9caab458 | 2109 | intr_mask |= RXTRAFFIC_INT_M; |
1da177e4 | 2110 | if (flag == ENABLE_INTRS) { |
1da177e4 LT |
2111 | /* writing 0 Enables all 8 RX interrupt levels */ |
2112 | writeq(0x0, &bar0->rx_traffic_mask); | |
2113 | } else if (flag == DISABLE_INTRS) { | |
20346722 | 2114 | /* |
2115 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
2116 | * register. |
2117 | */ | |
2118 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1da177e4 LT |
2119 | } |
2120 | } | |
9caab458 SS |
2121 | |
2122 | temp64 = readq(&bar0->general_int_mask); | |
2123 | if (flag == ENABLE_INTRS) | |
d44570e4 | 2124 | temp64 &= ~((u64)intr_mask); |
9caab458 SS |
2125 | else |
2126 | temp64 = DISABLE_ALL_INTRS; | |
2127 | writeq(temp64, &bar0->general_int_mask); | |
2128 | ||
2129 | nic->general_int_mask = readq(&bar0->general_int_mask); | |
1da177e4 LT |
2130 | } |
2131 | ||
19a60522 SS |
2132 | /** |
2133 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
2134 | * Return: 1 If PCC is quiescence | |
2135 | * 0 If PCC is not quiescence | |
2136 | */ | |
1ee6dd77 | 2137 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 2138 | { |
19a60522 | 2139 | int ret = 0, herc; |
1ee6dd77 | 2140 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 | 2141 | u64 val64 = readq(&bar0->adapter_status); |
8a4bdbaa | 2142 | |
19a60522 | 2143 | herc = (sp->device_type == XFRAME_II_DEVICE); |
20346722 | 2144 | |
f957bcf0 | 2145 | if (flag == false) { |
44c10138 | 2146 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
19a60522 | 2147 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2148 | ret = 1; |
19a60522 SS |
2149 | } else { |
2150 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 2151 | ret = 1; |
20346722 | 2152 | } |
2153 | } else { | |
44c10138 | 2154 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
5e25b9dd | 2155 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 2156 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2157 | ret = 1; |
5e25b9dd | 2158 | } else { |
2159 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 2160 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 2161 | ret = 1; |
20346722 | 2162 | } |
2163 | } | |
2164 | ||
2165 | return ret; | |
2166 | } | |
2167 | /** | |
2168 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 2169 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 2170 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
2171 | * differs and the calling function passes the input argument flag to |
2172 | * indicate this. | |
20346722 | 2173 | * Return: 1 If xena is quiescence |
1da177e4 LT |
2174 | * 0 If Xena is not quiescence |
2175 | */ | |
2176 | ||
1ee6dd77 | 2177 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 2178 | { |
19a60522 | 2179 | int mode; |
1ee6dd77 | 2180 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
2181 | u64 val64 = readq(&bar0->adapter_status); |
2182 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 2183 | |
19a60522 | 2184 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
9e39f7c5 | 2185 | DBG_PRINT(ERR_DBG, "TDMA is not ready!\n"); |
19a60522 SS |
2186 | return 0; |
2187 | } | |
2188 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
9e39f7c5 | 2189 | DBG_PRINT(ERR_DBG, "RDMA is not ready!\n"); |
19a60522 SS |
2190 | return 0; |
2191 | } | |
2192 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
9e39f7c5 | 2193 | DBG_PRINT(ERR_DBG, "PFC is not ready!\n"); |
19a60522 SS |
2194 | return 0; |
2195 | } | |
2196 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
9e39f7c5 | 2197 | DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n"); |
19a60522 SS |
2198 | return 0; |
2199 | } | |
2200 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
9e39f7c5 | 2201 | DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n"); |
19a60522 SS |
2202 | return 0; |
2203 | } | |
2204 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
9e39f7c5 | 2205 | DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n"); |
19a60522 SS |
2206 | return 0; |
2207 | } | |
2208 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
9e39f7c5 | 2209 | DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n"); |
19a60522 SS |
2210 | return 0; |
2211 | } | |
2212 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
9e39f7c5 | 2213 | DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n"); |
19a60522 | 2214 | return 0; |
1da177e4 LT |
2215 | } |
2216 | ||
19a60522 SS |
2217 | /* |
2218 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
2219 | * the the P_PLL_LOCK bit in the adapter_status register will | |
2220 | * not be asserted. | |
2221 | */ | |
2222 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
d44570e4 JP |
2223 | sp->device_type == XFRAME_II_DEVICE && |
2224 | mode != PCI_MODE_PCI_33) { | |
9e39f7c5 | 2225 | DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n"); |
19a60522 SS |
2226 | return 0; |
2227 | } | |
2228 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
d44570e4 | 2229 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { |
9e39f7c5 | 2230 | DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n"); |
19a60522 SS |
2231 | return 0; |
2232 | } | |
2233 | return 1; | |
1da177e4 LT |
2234 | } |
2235 | ||
2236 | /** | |
2237 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
2238 | * @sp: Pointer to device specifc structure | |
20346722 | 2239 | * Description : |
1da177e4 LT |
2240 | * New procedure to clear mac address reading problems on Alpha platforms |
2241 | * | |
2242 | */ | |
2243 | ||
d44570e4 | 2244 | static void fix_mac_address(struct s2io_nic *sp) |
1da177e4 | 2245 | { |
1ee6dd77 | 2246 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
2247 | int i = 0; |
2248 | ||
2249 | while (fix_mac[i] != END_SIGN) { | |
2250 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 2251 | udelay(10); |
d83d282b | 2252 | (void) readq(&bar0->gpio_control); |
1da177e4 LT |
2253 | } |
2254 | } | |
2255 | ||
2256 | /** | |
20346722 | 2257 | * start_nic - Turns the device on |
1da177e4 | 2258 | * @nic : device private variable. |
20346722 | 2259 | * Description: |
2260 | * This function actually turns the device on. Before this function is | |
2261 | * called,all Registers are configured from their reset states | |
2262 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
2263 | * calling this function, the device interrupts are cleared and the NIC is |
2264 | * literally switched on by writing into the adapter control register. | |
20346722 | 2265 | * Return Value: |
1da177e4 LT |
2266 | * SUCCESS on success and -1 on failure. |
2267 | */ | |
2268 | ||
2269 | static int start_nic(struct s2io_nic *nic) | |
2270 | { | |
1ee6dd77 | 2271 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
2272 | struct net_device *dev = nic->dev; |
2273 | register u64 val64 = 0; | |
20346722 | 2274 | u16 subid, i; |
ffb5df6c JP |
2275 | struct config_param *config = &nic->config; |
2276 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 LT |
2277 | |
2278 | /* PRC Initialization and configuration */ | |
2279 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2280 | struct ring_info *ring = &mac_control->rings[i]; |
2281 | ||
d44570e4 | 2282 | writeq((u64)ring->rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2283 | &bar0->prc_rxd0_n[i]); |
2284 | ||
2285 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
da6971d8 AR |
2286 | if (nic->rxd_mode == RXD_MODE_1) |
2287 | val64 |= PRC_CTRL_RC_ENABLED; | |
2288 | else | |
2289 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2290 | if (nic->device_type == XFRAME_II_DEVICE) |
2291 | val64 |= PRC_CTRL_GROUP_READS; | |
2292 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2293 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2294 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2295 | } | |
2296 | ||
da6971d8 AR |
2297 | if (nic->rxd_mode == RXD_MODE_3B) { |
2298 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2299 | val64 = readq(&bar0->rx_pa_cfg); | |
2300 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2301 | writeq(val64, &bar0->rx_pa_cfg); | |
2302 | } | |
1da177e4 | 2303 | |
926930b2 SS |
2304 | if (vlan_tag_strip == 0) { |
2305 | val64 = readq(&bar0->rx_pa_cfg); | |
2306 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
2307 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 2308 | nic->vlan_strip_flag = 0; |
926930b2 SS |
2309 | } |
2310 | ||
20346722 | 2311 | /* |
1da177e4 LT |
2312 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2313 | * for around 100ms, which is approximately the time required | |
2314 | * for the device to be ready for operation. | |
2315 | */ | |
2316 | val64 = readq(&bar0->mc_rldram_mrs); | |
2317 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2318 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2319 | val64 = readq(&bar0->mc_rldram_mrs); | |
2320 | ||
20346722 | 2321 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2322 | |
2323 | /* Enabling ECC Protection. */ | |
2324 | val64 = readq(&bar0->adapter_control); | |
2325 | val64 &= ~ADAPTER_ECC_EN; | |
2326 | writeq(val64, &bar0->adapter_control); | |
2327 | ||
20346722 | 2328 | /* |
2329 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2330 | * it. |
2331 | */ | |
2332 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 2333 | if (!verify_xena_quiescence(nic)) { |
9e39f7c5 JP |
2334 | DBG_PRINT(ERR_DBG, "%s: device is not ready, " |
2335 | "Adapter status reads: 0x%llx\n", | |
2336 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
2337 | return FAILURE; |
2338 | } | |
2339 | ||
20346722 | 2340 | /* |
1da177e4 | 2341 | * With some switches, link might be already up at this point. |
20346722 | 2342 | * Because of this weird behavior, when we enable laser, |
2343 | * we may not get link. We need to handle this. We cannot | |
2344 | * figure out which switch is misbehaving. So we are forced to | |
2345 | * make a global change. | |
1da177e4 LT |
2346 | */ |
2347 | ||
2348 | /* Enabling Laser. */ | |
2349 | val64 = readq(&bar0->adapter_control); | |
2350 | val64 |= ADAPTER_EOI_TX_ON; | |
2351 | writeq(val64, &bar0->adapter_control); | |
2352 | ||
c92ca04b AR |
2353 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2354 | /* | |
25985edc | 2355 | * Dont see link state interrupts initially on some switches, |
c92ca04b AR |
2356 | * so directly scheduling the link state task here. |
2357 | */ | |
2358 | schedule_work(&nic->set_link_task); | |
2359 | } | |
1da177e4 LT |
2360 | /* SXE-002: Initialize link and activity LED */ |
2361 | subid = nic->pdev->subsystem_device; | |
541ae68f | 2362 | if (((subid & 0xFF) >= 0x07) && |
2363 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2364 | val64 = readq(&bar0->gpio_control); |
2365 | val64 |= 0x0000800000000000ULL; | |
2366 | writeq(val64, &bar0->gpio_control); | |
2367 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2368 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2369 | } |
2370 | ||
1da177e4 LT |
2371 | return SUCCESS; |
2372 | } | |
fed5eccd AR |
2373 | /** |
2374 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2375 | */ | |
d44570e4 JP |
2376 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, |
2377 | struct TxD *txdlp, int get_off) | |
fed5eccd | 2378 | { |
1ee6dd77 | 2379 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2380 | struct sk_buff *skb; |
1ee6dd77 | 2381 | struct TxD *txds; |
fed5eccd AR |
2382 | u16 j, frg_cnt; |
2383 | ||
2384 | txds = txdlp; | |
2fda096d | 2385 | if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) { |
d44570e4 JP |
2386 | pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer, |
2387 | sizeof(u64), PCI_DMA_TODEVICE); | |
fed5eccd AR |
2388 | txds++; |
2389 | } | |
2390 | ||
d44570e4 | 2391 | skb = (struct sk_buff *)((unsigned long)txds->Host_Control); |
fed5eccd | 2392 | if (!skb) { |
1ee6dd77 | 2393 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2394 | return NULL; |
2395 | } | |
d44570e4 | 2396 | pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer, |
e743d313 | 2397 | skb_headlen(skb), PCI_DMA_TODEVICE); |
fed5eccd AR |
2398 | frg_cnt = skb_shinfo(skb)->nr_frags; |
2399 | if (frg_cnt) { | |
2400 | txds++; | |
2401 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2402 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2403 | if (!txds->Buffer_Pointer) | |
2404 | break; | |
d44570e4 JP |
2405 | pci_unmap_page(nic->pdev, |
2406 | (dma_addr_t)txds->Buffer_Pointer, | |
fed5eccd AR |
2407 | frag->size, PCI_DMA_TODEVICE); |
2408 | } | |
2409 | } | |
d44570e4 JP |
2410 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
2411 | return skb; | |
fed5eccd | 2412 | } |
1da177e4 | 2413 | |
20346722 | 2414 | /** |
2415 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2416 | * @nic : device private variable. |
20346722 | 2417 | * Description: |
1da177e4 | 2418 | * Free all queued Tx buffers. |
20346722 | 2419 | * Return Value: void |
d44570e4 | 2420 | */ |
1da177e4 LT |
2421 | |
2422 | static void free_tx_buffers(struct s2io_nic *nic) | |
2423 | { | |
2424 | struct net_device *dev = nic->dev; | |
2425 | struct sk_buff *skb; | |
1ee6dd77 | 2426 | struct TxD *txdp; |
1da177e4 | 2427 | int i, j; |
fed5eccd | 2428 | int cnt = 0; |
ffb5df6c JP |
2429 | struct config_param *config = &nic->config; |
2430 | struct mac_info *mac_control = &nic->mac_control; | |
2431 | struct stat_block *stats = mac_control->stats_info; | |
2432 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 LT |
2433 | |
2434 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
2435 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
2436 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
2fda096d | 2437 | unsigned long flags; |
13d866a9 JP |
2438 | |
2439 | spin_lock_irqsave(&fifo->tx_lock, flags); | |
2440 | for (j = 0; j < tx_cfg->fifo_len; j++) { | |
2441 | txdp = (struct TxD *)fifo->list_info[j].list_virt_addr; | |
fed5eccd AR |
2442 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2443 | if (skb) { | |
ffb5df6c | 2444 | swstats->mem_freed += skb->truesize; |
fed5eccd AR |
2445 | dev_kfree_skb(skb); |
2446 | cnt++; | |
1da177e4 | 2447 | } |
1da177e4 LT |
2448 | } |
2449 | DBG_PRINT(INTR_DBG, | |
9e39f7c5 | 2450 | "%s: forcibly freeing %d skbs on FIFO%d\n", |
1da177e4 | 2451 | dev->name, cnt, i); |
13d866a9 JP |
2452 | fifo->tx_curr_get_info.offset = 0; |
2453 | fifo->tx_curr_put_info.offset = 0; | |
2454 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
1da177e4 LT |
2455 | } |
2456 | } | |
2457 | ||
20346722 | 2458 | /** |
2459 | * stop_nic - To stop the nic | |
1da177e4 | 2460 | * @nic ; device private variable. |
20346722 | 2461 | * Description: |
2462 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2463 | * function does. This function is called to stop the device. |
2464 | * Return Value: | |
2465 | * void. | |
2466 | */ | |
2467 | ||
2468 | static void stop_nic(struct s2io_nic *nic) | |
2469 | { | |
1ee6dd77 | 2470 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2471 | register u64 val64 = 0; |
5d3213cc | 2472 | u16 interruptible; |
1da177e4 LT |
2473 | |
2474 | /* Disable all interrupts */ | |
9caab458 | 2475 | en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS); |
e960fc5c | 2476 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
9caab458 | 2477 | interruptible |= TX_PIC_INTR; |
1da177e4 LT |
2478 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2479 | ||
5d3213cc AR |
2480 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2481 | val64 = readq(&bar0->adapter_control); | |
2482 | val64 &= ~(ADAPTER_CNTL_EN); | |
2483 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2484 | } |
2485 | ||
20346722 | 2486 | /** |
2487 | * fill_rx_buffers - Allocates the Rx side skbs | |
0425b46a | 2488 | * @ring_info: per ring structure |
3f78d885 SH |
2489 | * @from_card_up: If this is true, we will map the buffer to get |
2490 | * the dma address for buf0 and buf1 to give it to the card. | |
2491 | * Else we will sync the already mapped buffer to give it to the card. | |
20346722 | 2492 | * Description: |
1da177e4 LT |
2493 | * The function allocates Rx side skbs and puts the physical |
2494 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2495 | * can DMA the received frame into these locations. | |
2496 | * The NIC supports 3 receive modes, viz | |
2497 | * 1. single buffer, | |
2498 | * 2. three buffer and | |
2499 | * 3. Five buffer modes. | |
20346722 | 2500 | * Each mode defines how many fragments the received frame will be split |
2501 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2502 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2503 | * is split into 3 fragments. As of now only single buffer mode is | |
2504 | * supported. | |
2505 | * Return Value: | |
2506 | * SUCCESS on success or an appropriate -ve value on failure. | |
2507 | */ | |
8d8bb39b | 2508 | static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring, |
d44570e4 | 2509 | int from_card_up) |
1da177e4 | 2510 | { |
1da177e4 | 2511 | struct sk_buff *skb; |
1ee6dd77 | 2512 | struct RxD_t *rxdp; |
0425b46a | 2513 | int off, size, block_no, block_no1; |
1da177e4 | 2514 | u32 alloc_tab = 0; |
20346722 | 2515 | u32 alloc_cnt; |
20346722 | 2516 | u64 tmp; |
1ee6dd77 | 2517 | struct buffAdd *ba; |
1ee6dd77 | 2518 | struct RxD_t *first_rxdp = NULL; |
363dc367 | 2519 | u64 Buffer0_ptr = 0, Buffer1_ptr = 0; |
0425b46a | 2520 | int rxd_index = 0; |
6d517a27 VP |
2521 | struct RxD1 *rxdp1; |
2522 | struct RxD3 *rxdp3; | |
ffb5df6c | 2523 | struct swStat *swstats = &ring->nic->mac_control.stats_info->sw_stat; |
1da177e4 | 2524 | |
0425b46a | 2525 | alloc_cnt = ring->pkt_cnt - ring->rx_bufs_left; |
1da177e4 | 2526 | |
0425b46a | 2527 | block_no1 = ring->rx_curr_get_info.block_index; |
1da177e4 | 2528 | while (alloc_tab < alloc_cnt) { |
0425b46a | 2529 | block_no = ring->rx_curr_put_info.block_index; |
1da177e4 | 2530 | |
0425b46a SH |
2531 | off = ring->rx_curr_put_info.offset; |
2532 | ||
2533 | rxdp = ring->rx_blocks[block_no].rxds[off].virt_addr; | |
2534 | ||
2535 | rxd_index = off + 1; | |
2536 | if (block_no) | |
2537 | rxd_index += (block_no * ring->rxd_count); | |
da6971d8 | 2538 | |
7d2e3cb7 | 2539 | if ((block_no == block_no1) && |
d44570e4 JP |
2540 | (off == ring->rx_curr_get_info.offset) && |
2541 | (rxdp->Host_Control)) { | |
9e39f7c5 JP |
2542 | DBG_PRINT(INTR_DBG, "%s: Get and Put info equated\n", |
2543 | ring->dev->name); | |
1da177e4 LT |
2544 | goto end; |
2545 | } | |
0425b46a SH |
2546 | if (off && (off == ring->rxd_count)) { |
2547 | ring->rx_curr_put_info.block_index++; | |
2548 | if (ring->rx_curr_put_info.block_index == | |
d44570e4 | 2549 | ring->block_count) |
0425b46a SH |
2550 | ring->rx_curr_put_info.block_index = 0; |
2551 | block_no = ring->rx_curr_put_info.block_index; | |
2552 | off = 0; | |
2553 | ring->rx_curr_put_info.offset = off; | |
2554 | rxdp = ring->rx_blocks[block_no].block_virt_addr; | |
1da177e4 | 2555 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
0425b46a SH |
2556 | ring->dev->name, rxdp); |
2557 | ||
1da177e4 | 2558 | } |
c9fcbf47 | 2559 | |
da6971d8 | 2560 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
d44570e4 JP |
2561 | ((ring->rxd_mode == RXD_MODE_3B) && |
2562 | (rxdp->Control_2 & s2BIT(0)))) { | |
0425b46a | 2563 | ring->rx_curr_put_info.offset = off; |
1da177e4 LT |
2564 | goto end; |
2565 | } | |
da6971d8 | 2566 | /* calculate size of skb based on ring mode */ |
d44570e4 JP |
2567 | size = ring->mtu + |
2568 | HEADER_ETHERNET_II_802_3_SIZE + | |
2569 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
0425b46a | 2570 | if (ring->rxd_mode == RXD_MODE_1) |
da6971d8 | 2571 | size += NET_IP_ALIGN; |
da6971d8 | 2572 | else |
0425b46a | 2573 | size = ring->mtu + ALIGN_SIZE + BUF0_LEN + 4; |
1da177e4 | 2574 | |
da6971d8 AR |
2575 | /* allocate skb */ |
2576 | skb = dev_alloc_skb(size); | |
d44570e4 | 2577 | if (!skb) { |
9e39f7c5 JP |
2578 | DBG_PRINT(INFO_DBG, "%s: Could not allocate skb\n", |
2579 | ring->dev->name); | |
303bcb4b | 2580 | if (first_rxdp) { |
2581 | wmb(); | |
2582 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2583 | } | |
ffb5df6c | 2584 | swstats->mem_alloc_fail_cnt++; |
7d2e3cb7 | 2585 | |
da6971d8 AR |
2586 | return -ENOMEM ; |
2587 | } | |
ffb5df6c | 2588 | swstats->mem_allocated += skb->truesize; |
0425b46a SH |
2589 | |
2590 | if (ring->rxd_mode == RXD_MODE_1) { | |
da6971d8 | 2591 | /* 1 buffer mode - normal operation mode */ |
d44570e4 | 2592 | rxdp1 = (struct RxD1 *)rxdp; |
1ee6dd77 | 2593 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2594 | skb_reserve(skb, NET_IP_ALIGN); |
d44570e4 JP |
2595 | rxdp1->Buffer0_ptr = |
2596 | pci_map_single(ring->pdev, skb->data, | |
2597 | size - NET_IP_ALIGN, | |
2598 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 2599 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 | 2600 | rxdp1->Buffer0_ptr)) |
491abf25 VP |
2601 | goto pci_map_failed; |
2602 | ||
8a4bdbaa | 2603 | rxdp->Control_2 = |
491976b2 | 2604 | SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); |
d44570e4 | 2605 | rxdp->Host_Control = (unsigned long)skb; |
0425b46a | 2606 | } else if (ring->rxd_mode == RXD_MODE_3B) { |
da6971d8 | 2607 | /* |
6d517a27 VP |
2608 | * 2 buffer mode - |
2609 | * 2 buffer mode provides 128 | |
da6971d8 | 2610 | * byte aligned receive buffers. |
da6971d8 AR |
2611 | */ |
2612 | ||
d44570e4 | 2613 | rxdp3 = (struct RxD3 *)rxdp; |
491976b2 | 2614 | /* save buffer pointers to avoid frequent dma mapping */ |
6d517a27 VP |
2615 | Buffer0_ptr = rxdp3->Buffer0_ptr; |
2616 | Buffer1_ptr = rxdp3->Buffer1_ptr; | |
1ee6dd77 | 2617 | memset(rxdp, 0, sizeof(struct RxD3)); |
363dc367 | 2618 | /* restore the buffer pointers for dma sync*/ |
6d517a27 VP |
2619 | rxdp3->Buffer0_ptr = Buffer0_ptr; |
2620 | rxdp3->Buffer1_ptr = Buffer1_ptr; | |
363dc367 | 2621 | |
0425b46a | 2622 | ba = &ring->ba[block_no][off]; |
da6971d8 | 2623 | skb_reserve(skb, BUF0_LEN); |
d44570e4 | 2624 | tmp = (u64)(unsigned long)skb->data; |
da6971d8 AR |
2625 | tmp += ALIGN_SIZE; |
2626 | tmp &= ~ALIGN_SIZE; | |
2627 | skb->data = (void *) (unsigned long)tmp; | |
27a884dc | 2628 | skb_reset_tail_pointer(skb); |
da6971d8 | 2629 | |
3f78d885 | 2630 | if (from_card_up) { |
6d517a27 | 2631 | rxdp3->Buffer0_ptr = |
d44570e4 JP |
2632 | pci_map_single(ring->pdev, ba->ba_0, |
2633 | BUF0_LEN, | |
2634 | PCI_DMA_FROMDEVICE); | |
2635 | if (pci_dma_mapping_error(nic->pdev, | |
2636 | rxdp3->Buffer0_ptr)) | |
3f78d885 SH |
2637 | goto pci_map_failed; |
2638 | } else | |
0425b46a | 2639 | pci_dma_sync_single_for_device(ring->pdev, |
d44570e4 JP |
2640 | (dma_addr_t)rxdp3->Buffer0_ptr, |
2641 | BUF0_LEN, | |
2642 | PCI_DMA_FROMDEVICE); | |
491abf25 | 2643 | |
da6971d8 | 2644 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
0425b46a | 2645 | if (ring->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
2646 | /* Two buffer mode */ |
2647 | ||
2648 | /* | |
6aa20a22 | 2649 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2650 | * L4 payload |
2651 | */ | |
d44570e4 JP |
2652 | rxdp3->Buffer2_ptr = pci_map_single(ring->pdev, |
2653 | skb->data, | |
2654 | ring->mtu + 4, | |
2655 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2656 | |
8d8bb39b | 2657 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 | 2658 | rxdp3->Buffer2_ptr)) |
491abf25 VP |
2659 | goto pci_map_failed; |
2660 | ||
3f78d885 | 2661 | if (from_card_up) { |
0425b46a SH |
2662 | rxdp3->Buffer1_ptr = |
2663 | pci_map_single(ring->pdev, | |
d44570e4 JP |
2664 | ba->ba_1, |
2665 | BUF1_LEN, | |
2666 | PCI_DMA_FROMDEVICE); | |
0425b46a | 2667 | |
8d8bb39b | 2668 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 JP |
2669 | rxdp3->Buffer1_ptr)) { |
2670 | pci_unmap_single(ring->pdev, | |
2671 | (dma_addr_t)(unsigned long) | |
2672 | skb->data, | |
2673 | ring->mtu + 4, | |
2674 | PCI_DMA_FROMDEVICE); | |
3f78d885 SH |
2675 | goto pci_map_failed; |
2676 | } | |
75c30b13 | 2677 | } |
da6971d8 AR |
2678 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2679 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
d44570e4 | 2680 | (ring->mtu + 4); |
da6971d8 | 2681 | } |
b7b5a128 | 2682 | rxdp->Control_2 |= s2BIT(0); |
0425b46a | 2683 | rxdp->Host_Control = (unsigned long) (skb); |
1da177e4 | 2684 | } |
303bcb4b | 2685 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2686 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2687 | off++; |
0425b46a | 2688 | if (off == (ring->rxd_count + 1)) |
da6971d8 | 2689 | off = 0; |
0425b46a | 2690 | ring->rx_curr_put_info.offset = off; |
20346722 | 2691 | |
da6971d8 | 2692 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b | 2693 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2694 | if (first_rxdp) { | |
2695 | wmb(); | |
2696 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2697 | } | |
2698 | first_rxdp = rxdp; | |
2699 | } | |
0425b46a | 2700 | ring->rx_bufs_left += 1; |
1da177e4 LT |
2701 | alloc_tab++; |
2702 | } | |
2703 | ||
d44570e4 | 2704 | end: |
303bcb4b | 2705 | /* Transfer ownership of first descriptor to adapter just before |
2706 | * exiting. Before that, use memory barrier so that ownership | |
2707 | * and other fields are seen by adapter correctly. | |
2708 | */ | |
2709 | if (first_rxdp) { | |
2710 | wmb(); | |
2711 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2712 | } | |
2713 | ||
1da177e4 | 2714 | return SUCCESS; |
d44570e4 | 2715 | |
491abf25 | 2716 | pci_map_failed: |
ffb5df6c JP |
2717 | swstats->pci_map_fail_cnt++; |
2718 | swstats->mem_freed += skb->truesize; | |
491abf25 VP |
2719 | dev_kfree_skb_irq(skb); |
2720 | return -ENOMEM; | |
1da177e4 LT |
2721 | } |
2722 | ||
da6971d8 AR |
2723 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2724 | { | |
2725 | struct net_device *dev = sp->dev; | |
2726 | int j; | |
2727 | struct sk_buff *skb; | |
1ee6dd77 | 2728 | struct RxD_t *rxdp; |
6d517a27 VP |
2729 | struct RxD1 *rxdp1; |
2730 | struct RxD3 *rxdp3; | |
ffb5df6c JP |
2731 | struct mac_info *mac_control = &sp->mac_control; |
2732 | struct stat_block *stats = mac_control->stats_info; | |
2733 | struct swStat *swstats = &stats->sw_stat; | |
da6971d8 | 2734 | |
da6971d8 AR |
2735 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { |
2736 | rxdp = mac_control->rings[ring_no]. | |
d44570e4 JP |
2737 | rx_blocks[blk].rxds[j].virt_addr; |
2738 | skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control); | |
2739 | if (!skb) | |
da6971d8 | 2740 | continue; |
da6971d8 | 2741 | if (sp->rxd_mode == RXD_MODE_1) { |
d44570e4 JP |
2742 | rxdp1 = (struct RxD1 *)rxdp; |
2743 | pci_unmap_single(sp->pdev, | |
2744 | (dma_addr_t)rxdp1->Buffer0_ptr, | |
2745 | dev->mtu + | |
2746 | HEADER_ETHERNET_II_802_3_SIZE + | |
2747 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE, | |
2748 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2749 | memset(rxdp, 0, sizeof(struct RxD1)); |
d44570e4 JP |
2750 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
2751 | rxdp3 = (struct RxD3 *)rxdp; | |
d44570e4 JP |
2752 | pci_unmap_single(sp->pdev, |
2753 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
2754 | BUF0_LEN, | |
2755 | PCI_DMA_FROMDEVICE); | |
2756 | pci_unmap_single(sp->pdev, | |
2757 | (dma_addr_t)rxdp3->Buffer1_ptr, | |
2758 | BUF1_LEN, | |
2759 | PCI_DMA_FROMDEVICE); | |
2760 | pci_unmap_single(sp->pdev, | |
2761 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
2762 | dev->mtu + 4, | |
2763 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2764 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 | 2765 | } |
ffb5df6c | 2766 | swstats->mem_freed += skb->truesize; |
da6971d8 | 2767 | dev_kfree_skb(skb); |
0425b46a | 2768 | mac_control->rings[ring_no].rx_bufs_left -= 1; |
da6971d8 AR |
2769 | } |
2770 | } | |
2771 | ||
1da177e4 | 2772 | /** |
20346722 | 2773 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2774 | * @sp: device private variable. |
20346722 | 2775 | * Description: |
1da177e4 LT |
2776 | * This function will free all Rx buffers allocated by host. |
2777 | * Return Value: | |
2778 | * NONE. | |
2779 | */ | |
2780 | ||
2781 | static void free_rx_buffers(struct s2io_nic *sp) | |
2782 | { | |
2783 | struct net_device *dev = sp->dev; | |
da6971d8 | 2784 | int i, blk = 0, buf_cnt = 0; |
ffb5df6c JP |
2785 | struct config_param *config = &sp->config; |
2786 | struct mac_info *mac_control = &sp->mac_control; | |
1da177e4 LT |
2787 | |
2788 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2789 | struct ring_info *ring = &mac_control->rings[i]; |
2790 | ||
da6971d8 | 2791 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
d44570e4 | 2792 | free_rxd_blk(sp, i, blk); |
1da177e4 | 2793 | |
13d866a9 JP |
2794 | ring->rx_curr_put_info.block_index = 0; |
2795 | ring->rx_curr_get_info.block_index = 0; | |
2796 | ring->rx_curr_put_info.offset = 0; | |
2797 | ring->rx_curr_get_info.offset = 0; | |
2798 | ring->rx_bufs_left = 0; | |
9e39f7c5 | 2799 | DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n", |
1da177e4 LT |
2800 | dev->name, buf_cnt, i); |
2801 | } | |
2802 | } | |
2803 | ||
8d8bb39b | 2804 | static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring) |
f61e0a35 | 2805 | { |
8d8bb39b | 2806 | if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) { |
9e39f7c5 JP |
2807 | DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n", |
2808 | ring->dev->name); | |
f61e0a35 SH |
2809 | } |
2810 | return 0; | |
2811 | } | |
2812 | ||
1da177e4 LT |
2813 | /** |
2814 | * s2io_poll - Rx interrupt handler for NAPI support | |
bea3348e | 2815 | * @napi : pointer to the napi structure. |
20346722 | 2816 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2817 | * during one pass through the 'Poll" function. |
2818 | * Description: | |
2819 | * Comes into picture only if NAPI support has been incorporated. It does | |
2820 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2821 | * also It will process only a given number of packets. | |
2822 | * Return value: | |
2823 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2824 | */ | |
2825 | ||
f61e0a35 | 2826 | static int s2io_poll_msix(struct napi_struct *napi, int budget) |
1da177e4 | 2827 | { |
f61e0a35 SH |
2828 | struct ring_info *ring = container_of(napi, struct ring_info, napi); |
2829 | struct net_device *dev = ring->dev; | |
f61e0a35 | 2830 | int pkts_processed = 0; |
1a79d1c3 AV |
2831 | u8 __iomem *addr = NULL; |
2832 | u8 val8 = 0; | |
4cf1653a | 2833 | struct s2io_nic *nic = netdev_priv(dev); |
1ee6dd77 | 2834 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
f61e0a35 | 2835 | int budget_org = budget; |
1da177e4 | 2836 | |
f61e0a35 SH |
2837 | if (unlikely(!is_s2io_card_up(nic))) |
2838 | return 0; | |
1da177e4 | 2839 | |
f61e0a35 | 2840 | pkts_processed = rx_intr_handler(ring, budget); |
8d8bb39b | 2841 | s2io_chk_rx_buffers(nic, ring); |
1da177e4 | 2842 | |
f61e0a35 | 2843 | if (pkts_processed < budget_org) { |
288379f0 | 2844 | napi_complete(napi); |
f61e0a35 | 2845 | /*Re Enable MSI-Rx Vector*/ |
1a79d1c3 | 2846 | addr = (u8 __iomem *)&bar0->xmsi_mask_reg; |
f61e0a35 SH |
2847 | addr += 7 - ring->ring_no; |
2848 | val8 = (ring->ring_no == 0) ? 0x3f : 0xbf; | |
2849 | writeb(val8, addr); | |
2850 | val8 = readb(addr); | |
1da177e4 | 2851 | } |
f61e0a35 SH |
2852 | return pkts_processed; |
2853 | } | |
d44570e4 | 2854 | |
f61e0a35 SH |
2855 | static int s2io_poll_inta(struct napi_struct *napi, int budget) |
2856 | { | |
2857 | struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi); | |
f61e0a35 SH |
2858 | int pkts_processed = 0; |
2859 | int ring_pkts_processed, i; | |
2860 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
2861 | int budget_org = budget; | |
ffb5df6c JP |
2862 | struct config_param *config = &nic->config; |
2863 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 | 2864 | |
f61e0a35 SH |
2865 | if (unlikely(!is_s2io_card_up(nic))) |
2866 | return 0; | |
1da177e4 | 2867 | |
1da177e4 | 2868 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 | 2869 | struct ring_info *ring = &mac_control->rings[i]; |
f61e0a35 | 2870 | ring_pkts_processed = rx_intr_handler(ring, budget); |
8d8bb39b | 2871 | s2io_chk_rx_buffers(nic, ring); |
f61e0a35 SH |
2872 | pkts_processed += ring_pkts_processed; |
2873 | budget -= ring_pkts_processed; | |
2874 | if (budget <= 0) | |
1da177e4 | 2875 | break; |
1da177e4 | 2876 | } |
f61e0a35 | 2877 | if (pkts_processed < budget_org) { |
288379f0 | 2878 | napi_complete(napi); |
f61e0a35 SH |
2879 | /* Re enable the Rx interrupts for the ring */ |
2880 | writeq(0, &bar0->rx_traffic_mask); | |
2881 | readl(&bar0->rx_traffic_mask); | |
2882 | } | |
2883 | return pkts_processed; | |
1da177e4 | 2884 | } |
20346722 | 2885 | |
b41477f3 | 2886 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2887 | /** |
b41477f3 | 2888 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2889 | * @dev : pointer to the device structure. |
2890 | * Description: | |
b41477f3 AR |
2891 | * This function will be called by upper layer to check for events on the |
2892 | * interface in situations where interrupts are disabled. It is used for | |
2893 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2894 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2895 | */ |
612eff0e BH |
2896 | static void s2io_netpoll(struct net_device *dev) |
2897 | { | |
4cf1653a | 2898 | struct s2io_nic *nic = netdev_priv(dev); |
1ee6dd77 | 2899 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2900 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e | 2901 | int i; |
ffb5df6c JP |
2902 | struct config_param *config = &nic->config; |
2903 | struct mac_info *mac_control = &nic->mac_control; | |
612eff0e | 2904 | |
d796fdb7 LV |
2905 | if (pci_channel_offline(nic->pdev)) |
2906 | return; | |
2907 | ||
612eff0e BH |
2908 | disable_irq(dev->irq); |
2909 | ||
612eff0e | 2910 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2911 | writeq(val64, &bar0->tx_traffic_int); |
2912 | ||
6aa20a22 | 2913 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2914 | * run out of skbs and will fail and eventually netpoll application such |
2915 | * as netdump will fail. | |
2916 | */ | |
2917 | for (i = 0; i < config->tx_fifo_num; i++) | |
2918 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2919 | |
b41477f3 | 2920 | /* check for received packet and indicate up to network */ |
13d866a9 JP |
2921 | for (i = 0; i < config->rx_ring_num; i++) { |
2922 | struct ring_info *ring = &mac_control->rings[i]; | |
2923 | ||
2924 | rx_intr_handler(ring, 0); | |
2925 | } | |
612eff0e BH |
2926 | |
2927 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2928 | struct ring_info *ring = &mac_control->rings[i]; |
2929 | ||
2930 | if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) { | |
9e39f7c5 JP |
2931 | DBG_PRINT(INFO_DBG, |
2932 | "%s: Out of memory in Rx Netpoll!!\n", | |
2933 | dev->name); | |
612eff0e BH |
2934 | break; |
2935 | } | |
2936 | } | |
612eff0e | 2937 | enable_irq(dev->irq); |
612eff0e BH |
2938 | } |
2939 | #endif | |
2940 | ||
20346722 | 2941 | /** |
1da177e4 | 2942 | * rx_intr_handler - Rx interrupt handler |
f61e0a35 SH |
2943 | * @ring_info: per ring structure. |
2944 | * @budget: budget for napi processing. | |
20346722 | 2945 | * Description: |
2946 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2947 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 | 2948 | * called. It picks out the RxD at which place the last Rx processing had |
2949 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2950 | * the offset. |
2951 | * Return Value: | |
f61e0a35 | 2952 | * No. of napi packets processed. |
1da177e4 | 2953 | */ |
f61e0a35 | 2954 | static int rx_intr_handler(struct ring_info *ring_data, int budget) |
1da177e4 | 2955 | { |
c9fcbf47 | 2956 | int get_block, put_block; |
1ee6dd77 RB |
2957 | struct rx_curr_get_info get_info, put_info; |
2958 | struct RxD_t *rxdp; | |
1da177e4 | 2959 | struct sk_buff *skb; |
f61e0a35 | 2960 | int pkt_cnt = 0, napi_pkts = 0; |
7d3d0439 | 2961 | int i; |
d44570e4 JP |
2962 | struct RxD1 *rxdp1; |
2963 | struct RxD3 *rxdp3; | |
7d3d0439 | 2964 | |
20346722 | 2965 | get_info = ring_data->rx_curr_get_info; |
2966 | get_block = get_info.block_index; | |
1ee6dd77 | 2967 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2968 | put_block = put_info.block_index; |
da6971d8 | 2969 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 | 2970 | |
da6971d8 | 2971 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2972 | /* |
2973 | * If your are next to put index then it's | |
2974 | * FIFO full condition | |
2975 | */ | |
da6971d8 AR |
2976 | if ((get_block == put_block) && |
2977 | (get_info.offset + 1) == put_info.offset) { | |
0425b46a | 2978 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n", |
d44570e4 | 2979 | ring_data->dev->name); |
da6971d8 AR |
2980 | break; |
2981 | } | |
d44570e4 | 2982 | skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control); |
20346722 | 2983 | if (skb == NULL) { |
9e39f7c5 | 2984 | DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n", |
0425b46a | 2985 | ring_data->dev->name); |
f61e0a35 | 2986 | return 0; |
1da177e4 | 2987 | } |
0425b46a | 2988 | if (ring_data->rxd_mode == RXD_MODE_1) { |
d44570e4 | 2989 | rxdp1 = (struct RxD1 *)rxdp; |
0425b46a | 2990 | pci_unmap_single(ring_data->pdev, (dma_addr_t) |
d44570e4 JP |
2991 | rxdp1->Buffer0_ptr, |
2992 | ring_data->mtu + | |
2993 | HEADER_ETHERNET_II_802_3_SIZE + | |
2994 | HEADER_802_2_SIZE + | |
2995 | HEADER_SNAP_SIZE, | |
2996 | PCI_DMA_FROMDEVICE); | |
0425b46a | 2997 | } else if (ring_data->rxd_mode == RXD_MODE_3B) { |
d44570e4 JP |
2998 | rxdp3 = (struct RxD3 *)rxdp; |
2999 | pci_dma_sync_single_for_cpu(ring_data->pdev, | |
3000 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
3001 | BUF0_LEN, | |
3002 | PCI_DMA_FROMDEVICE); | |
3003 | pci_unmap_single(ring_data->pdev, | |
3004 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
3005 | ring_data->mtu + 4, | |
3006 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 3007 | } |
863c11a9 | 3008 | prefetch(skb->data); |
20346722 | 3009 | rx_osm_handler(ring_data, rxdp); |
3010 | get_info.offset++; | |
da6971d8 AR |
3011 | ring_data->rx_curr_get_info.offset = get_info.offset; |
3012 | rxdp = ring_data->rx_blocks[get_block]. | |
d44570e4 | 3013 | rxds[get_info.offset].virt_addr; |
0425b46a | 3014 | if (get_info.offset == rxd_count[ring_data->rxd_mode]) { |
20346722 | 3015 | get_info.offset = 0; |
da6971d8 | 3016 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 3017 | get_block++; |
da6971d8 AR |
3018 | if (get_block == ring_data->block_count) |
3019 | get_block = 0; | |
3020 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 | 3021 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
3022 | } | |
1da177e4 | 3023 | |
f61e0a35 SH |
3024 | if (ring_data->nic->config.napi) { |
3025 | budget--; | |
3026 | napi_pkts++; | |
3027 | if (!budget) | |
0425b46a SH |
3028 | break; |
3029 | } | |
20346722 | 3030 | pkt_cnt++; |
1da177e4 LT |
3031 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
3032 | break; | |
3033 | } | |
0425b46a | 3034 | if (ring_data->lro) { |
7d3d0439 | 3035 | /* Clear all LRO sessions before exiting */ |
d44570e4 | 3036 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 3037 | struct lro *lro = &ring_data->lro0_n[i]; |
7d3d0439 | 3038 | if (lro->in_use) { |
0425b46a | 3039 | update_L3L4_header(ring_data->nic, lro); |
cdb5bf02 | 3040 | queue_rx_frame(lro->parent, lro->vlan_tag); |
7d3d0439 RA |
3041 | clear_lro_session(lro); |
3042 | } | |
3043 | } | |
3044 | } | |
d44570e4 | 3045 | return napi_pkts; |
1da177e4 | 3046 | } |
20346722 | 3047 | |
3048 | /** | |
1da177e4 LT |
3049 | * tx_intr_handler - Transmit interrupt handler |
3050 | * @nic : device private variable | |
20346722 | 3051 | * Description: |
3052 | * If an interrupt was raised to indicate DMA complete of the | |
3053 | * Tx packet, this function is called. It identifies the last TxD | |
3054 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
3055 | * DMA'ed into the NICs internal memory. |
3056 | * Return Value: | |
3057 | * NONE | |
3058 | */ | |
3059 | ||
1ee6dd77 | 3060 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 3061 | { |
1ee6dd77 | 3062 | struct s2io_nic *nic = fifo_data->nic; |
1ee6dd77 | 3063 | struct tx_curr_get_info get_info, put_info; |
3a3d5756 | 3064 | struct sk_buff *skb = NULL; |
1ee6dd77 | 3065 | struct TxD *txdlp; |
3a3d5756 | 3066 | int pkt_cnt = 0; |
2fda096d | 3067 | unsigned long flags = 0; |
f9046eb3 | 3068 | u8 err_mask; |
ffb5df6c JP |
3069 | struct stat_block *stats = nic->mac_control.stats_info; |
3070 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 | 3071 | |
2fda096d | 3072 | if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags)) |
d44570e4 | 3073 | return; |
2fda096d | 3074 | |
20346722 | 3075 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 | 3076 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
d44570e4 JP |
3077 | txdlp = (struct TxD *) |
3078 | fifo_data->list_info[get_info.offset].list_virt_addr; | |
20346722 | 3079 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && |
3080 | (get_info.offset != put_info.offset) && | |
3081 | (txdlp->Host_Control)) { | |
3082 | /* Check for TxD errors */ | |
3083 | if (txdlp->Control_1 & TXD_T_CODE) { | |
3084 | unsigned long long err; | |
3085 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 | 3086 | if (err & 0x1) { |
ffb5df6c | 3087 | swstats->parity_err_cnt++; |
bd1034f0 | 3088 | } |
491976b2 SH |
3089 | |
3090 | /* update t_code statistics */ | |
f9046eb3 | 3091 | err_mask = err >> 48; |
d44570e4 JP |
3092 | switch (err_mask) { |
3093 | case 2: | |
ffb5df6c | 3094 | swstats->tx_buf_abort_cnt++; |
491976b2 SH |
3095 | break; |
3096 | ||
d44570e4 | 3097 | case 3: |
ffb5df6c | 3098 | swstats->tx_desc_abort_cnt++; |
491976b2 SH |
3099 | break; |
3100 | ||
d44570e4 | 3101 | case 7: |
ffb5df6c | 3102 | swstats->tx_parity_err_cnt++; |
491976b2 SH |
3103 | break; |
3104 | ||
d44570e4 | 3105 | case 10: |
ffb5df6c | 3106 | swstats->tx_link_loss_cnt++; |
491976b2 SH |
3107 | break; |
3108 | ||
d44570e4 | 3109 | case 15: |
ffb5df6c | 3110 | swstats->tx_list_proc_err_cnt++; |
491976b2 | 3111 | break; |
d44570e4 | 3112 | } |
20346722 | 3113 | } |
1da177e4 | 3114 | |
fed5eccd | 3115 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 | 3116 | if (skb == NULL) { |
2fda096d | 3117 | spin_unlock_irqrestore(&fifo_data->tx_lock, flags); |
9e39f7c5 JP |
3118 | DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n", |
3119 | __func__); | |
20346722 | 3120 | return; |
3121 | } | |
3a3d5756 | 3122 | pkt_cnt++; |
20346722 | 3123 | |
20346722 | 3124 | /* Updating the statistics block */ |
ffb5df6c | 3125 | swstats->mem_freed += skb->truesize; |
20346722 | 3126 | dev_kfree_skb_irq(skb); |
3127 | ||
3128 | get_info.offset++; | |
863c11a9 AR |
3129 | if (get_info.offset == get_info.fifo_len + 1) |
3130 | get_info.offset = 0; | |
d44570e4 JP |
3131 | txdlp = (struct TxD *) |
3132 | fifo_data->list_info[get_info.offset].list_virt_addr; | |
3133 | fifo_data->tx_curr_get_info.offset = get_info.offset; | |
1da177e4 LT |
3134 | } |
3135 | ||
3a3d5756 | 3136 | s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq); |
2fda096d SR |
3137 | |
3138 | spin_unlock_irqrestore(&fifo_data->tx_lock, flags); | |
1da177e4 LT |
3139 | } |
3140 | ||
bd1034f0 AR |
3141 | /** |
3142 | * s2io_mdio_write - Function to write in to MDIO registers | |
3143 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3144 | * @addr : address value | |
3145 | * @value : data value | |
3146 | * @dev : pointer to net_device structure | |
3147 | * Description: | |
3148 | * This function is used to write values to the MDIO registers | |
3149 | * NONE | |
3150 | */ | |
d44570e4 JP |
3151 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, |
3152 | struct net_device *dev) | |
bd1034f0 | 3153 | { |
d44570e4 | 3154 | u64 val64; |
4cf1653a | 3155 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 3156 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
bd1034f0 | 3157 | |
d44570e4 JP |
3158 | /* address transaction */ |
3159 | val64 = MDIO_MMD_INDX_ADDR(addr) | | |
3160 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3161 | MDIO_MMS_PRT_ADDR(0x0); | |
bd1034f0 AR |
3162 | writeq(val64, &bar0->mdio_control); |
3163 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3164 | writeq(val64, &bar0->mdio_control); | |
3165 | udelay(100); | |
3166 | ||
d44570e4 JP |
3167 | /* Data transaction */ |
3168 | val64 = MDIO_MMD_INDX_ADDR(addr) | | |
3169 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3170 | MDIO_MMS_PRT_ADDR(0x0) | | |
3171 | MDIO_MDIO_DATA(value) | | |
3172 | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
bd1034f0 AR |
3173 | writeq(val64, &bar0->mdio_control); |
3174 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3175 | writeq(val64, &bar0->mdio_control); | |
3176 | udelay(100); | |
3177 | ||
d44570e4 JP |
3178 | val64 = MDIO_MMD_INDX_ADDR(addr) | |
3179 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3180 | MDIO_MMS_PRT_ADDR(0x0) | | |
3181 | MDIO_OP(MDIO_OP_READ_TRANS); | |
bd1034f0 AR |
3182 | writeq(val64, &bar0->mdio_control); |
3183 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3184 | writeq(val64, &bar0->mdio_control); | |
3185 | udelay(100); | |
bd1034f0 AR |
3186 | } |
3187 | ||
3188 | /** | |
3189 | * s2io_mdio_read - Function to write in to MDIO registers | |
3190 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3191 | * @addr : address value | |
3192 | * @dev : pointer to net_device structure | |
3193 | * Description: | |
3194 | * This function is used to read values to the MDIO registers | |
3195 | * NONE | |
3196 | */ | |
3197 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
3198 | { | |
3199 | u64 val64 = 0x0; | |
3200 | u64 rval64 = 0x0; | |
4cf1653a | 3201 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 3202 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
bd1034f0 AR |
3203 | |
3204 | /* address transaction */ | |
d44570e4 JP |
3205 | val64 = val64 | (MDIO_MMD_INDX_ADDR(addr) |
3206 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3207 | | MDIO_MMS_PRT_ADDR(0x0)); | |
bd1034f0 AR |
3208 | writeq(val64, &bar0->mdio_control); |
3209 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3210 | writeq(val64, &bar0->mdio_control); | |
3211 | udelay(100); | |
3212 | ||
3213 | /* Data transaction */ | |
d44570e4 JP |
3214 | val64 = MDIO_MMD_INDX_ADDR(addr) | |
3215 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3216 | MDIO_MMS_PRT_ADDR(0x0) | | |
3217 | MDIO_OP(MDIO_OP_READ_TRANS); | |
bd1034f0 AR |
3218 | writeq(val64, &bar0->mdio_control); |
3219 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3220 | writeq(val64, &bar0->mdio_control); | |
3221 | udelay(100); | |
3222 | ||
3223 | /* Read the value from regs */ | |
3224 | rval64 = readq(&bar0->mdio_control); | |
3225 | rval64 = rval64 & 0xFFFF0000; | |
3226 | rval64 = rval64 >> 16; | |
3227 | return rval64; | |
3228 | } | |
d44570e4 | 3229 | |
bd1034f0 AR |
3230 | /** |
3231 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
fbfecd37 | 3232 | * @counter : counter value to be updated |
bd1034f0 AR |
3233 | * @flag : flag to indicate the status |
3234 | * @type : counter type | |
3235 | * Description: | |
3236 | * This function is to check the status of the xpak counters value | |
3237 | * NONE | |
3238 | */ | |
3239 | ||
d44570e4 JP |
3240 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, |
3241 | u16 flag, u16 type) | |
bd1034f0 AR |
3242 | { |
3243 | u64 mask = 0x3; | |
3244 | u64 val64; | |
3245 | int i; | |
d44570e4 | 3246 | for (i = 0; i < index; i++) |
bd1034f0 AR |
3247 | mask = mask << 0x2; |
3248 | ||
d44570e4 | 3249 | if (flag > 0) { |
bd1034f0 AR |
3250 | *counter = *counter + 1; |
3251 | val64 = *regs_stat & mask; | |
3252 | val64 = val64 >> (index * 0x2); | |
3253 | val64 = val64 + 1; | |
d44570e4 JP |
3254 | if (val64 == 3) { |
3255 | switch (type) { | |
bd1034f0 | 3256 | case 1: |
9e39f7c5 JP |
3257 | DBG_PRINT(ERR_DBG, |
3258 | "Take Xframe NIC out of service.\n"); | |
3259 | DBG_PRINT(ERR_DBG, | |
3260 | "Excessive temperatures may result in premature transceiver failure.\n"); | |
d44570e4 | 3261 | break; |
bd1034f0 | 3262 | case 2: |
9e39f7c5 JP |
3263 | DBG_PRINT(ERR_DBG, |
3264 | "Take Xframe NIC out of service.\n"); | |
3265 | DBG_PRINT(ERR_DBG, | |
3266 | "Excessive bias currents may indicate imminent laser diode failure.\n"); | |
d44570e4 | 3267 | break; |
bd1034f0 | 3268 | case 3: |
9e39f7c5 JP |
3269 | DBG_PRINT(ERR_DBG, |
3270 | "Take Xframe NIC out of service.\n"); | |
3271 | DBG_PRINT(ERR_DBG, | |
3272 | "Excessive laser output power may saturate far-end receiver.\n"); | |
d44570e4 | 3273 | break; |
bd1034f0 | 3274 | default: |
d44570e4 JP |
3275 | DBG_PRINT(ERR_DBG, |
3276 | "Incorrect XPAK Alarm type\n"); | |
bd1034f0 AR |
3277 | } |
3278 | val64 = 0x0; | |
3279 | } | |
3280 | val64 = val64 << (index * 0x2); | |
3281 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3282 | ||
3283 | } else { | |
3284 | *regs_stat = *regs_stat & (~mask); | |
3285 | } | |
3286 | } | |
3287 | ||
3288 | /** | |
3289 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3290 | * @dev : pointer to net_device struct | |
3291 | * Description: | |
3292 | * This function is to upate the status of the xpak counters value | |
3293 | * NONE | |
3294 | */ | |
3295 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3296 | { | |
3297 | u16 flag = 0x0; | |
3298 | u16 type = 0x0; | |
3299 | u16 val16 = 0x0; | |
3300 | u64 val64 = 0x0; | |
3301 | u64 addr = 0x0; | |
3302 | ||
4cf1653a | 3303 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
3304 | struct stat_block *stats = sp->mac_control.stats_info; |
3305 | struct xpakStat *xstats = &stats->xpak_stat; | |
bd1034f0 AR |
3306 | |
3307 | /* Check the communication with the MDIO slave */ | |
40239396 | 3308 | addr = MDIO_CTRL1; |
bd1034f0 | 3309 | val64 = 0x0; |
40239396 | 3310 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
d44570e4 | 3311 | if ((val64 == 0xFFFF) || (val64 == 0x0000)) { |
9e39f7c5 JP |
3312 | DBG_PRINT(ERR_DBG, |
3313 | "ERR: MDIO slave access failed - Returned %llx\n", | |
3314 | (unsigned long long)val64); | |
bd1034f0 AR |
3315 | return; |
3316 | } | |
3317 | ||
40239396 | 3318 | /* Check for the expected value of control reg 1 */ |
d44570e4 | 3319 | if (val64 != MDIO_CTRL1_SPEED10G) { |
9e39f7c5 JP |
3320 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - " |
3321 | "Returned: %llx- Expected: 0x%x\n", | |
40239396 | 3322 | (unsigned long long)val64, MDIO_CTRL1_SPEED10G); |
bd1034f0 AR |
3323 | return; |
3324 | } | |
3325 | ||
3326 | /* Loading the DOM register to MDIO register */ | |
3327 | addr = 0xA100; | |
40239396 BH |
3328 | s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev); |
3329 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); | |
bd1034f0 AR |
3330 | |
3331 | /* Reading the Alarm flags */ | |
3332 | addr = 0xA070; | |
3333 | val64 = 0x0; | |
40239396 | 3334 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
bd1034f0 AR |
3335 | |
3336 | flag = CHECKBIT(val64, 0x7); | |
3337 | type = 1; | |
ffb5df6c JP |
3338 | s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high, |
3339 | &xstats->xpak_regs_stat, | |
d44570e4 | 3340 | 0x0, flag, type); |
bd1034f0 | 3341 | |
d44570e4 | 3342 | if (CHECKBIT(val64, 0x6)) |
ffb5df6c | 3343 | xstats->alarm_transceiver_temp_low++; |
bd1034f0 AR |
3344 | |
3345 | flag = CHECKBIT(val64, 0x3); | |
3346 | type = 2; | |
ffb5df6c JP |
3347 | s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high, |
3348 | &xstats->xpak_regs_stat, | |
d44570e4 | 3349 | 0x2, flag, type); |
bd1034f0 | 3350 | |
d44570e4 | 3351 | if (CHECKBIT(val64, 0x2)) |
ffb5df6c | 3352 | xstats->alarm_laser_bias_current_low++; |
bd1034f0 AR |
3353 | |
3354 | flag = CHECKBIT(val64, 0x1); | |
3355 | type = 3; | |
ffb5df6c JP |
3356 | s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high, |
3357 | &xstats->xpak_regs_stat, | |
d44570e4 | 3358 | 0x4, flag, type); |
bd1034f0 | 3359 | |
d44570e4 | 3360 | if (CHECKBIT(val64, 0x0)) |
ffb5df6c | 3361 | xstats->alarm_laser_output_power_low++; |
bd1034f0 AR |
3362 | |
3363 | /* Reading the Warning flags */ | |
3364 | addr = 0xA074; | |
3365 | val64 = 0x0; | |
40239396 | 3366 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
bd1034f0 | 3367 | |
d44570e4 | 3368 | if (CHECKBIT(val64, 0x7)) |
ffb5df6c | 3369 | xstats->warn_transceiver_temp_high++; |
bd1034f0 | 3370 | |
d44570e4 | 3371 | if (CHECKBIT(val64, 0x6)) |
ffb5df6c | 3372 | xstats->warn_transceiver_temp_low++; |
bd1034f0 | 3373 | |
d44570e4 | 3374 | if (CHECKBIT(val64, 0x3)) |
ffb5df6c | 3375 | xstats->warn_laser_bias_current_high++; |
bd1034f0 | 3376 | |
d44570e4 | 3377 | if (CHECKBIT(val64, 0x2)) |
ffb5df6c | 3378 | xstats->warn_laser_bias_current_low++; |
bd1034f0 | 3379 | |
d44570e4 | 3380 | if (CHECKBIT(val64, 0x1)) |
ffb5df6c | 3381 | xstats->warn_laser_output_power_high++; |
bd1034f0 | 3382 | |
d44570e4 | 3383 | if (CHECKBIT(val64, 0x0)) |
ffb5df6c | 3384 | xstats->warn_laser_output_power_low++; |
bd1034f0 AR |
3385 | } |
3386 | ||
20346722 | 3387 | /** |
1da177e4 | 3388 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3389 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3390 | * s2io_nic structure. |
20346722 | 3391 | * Description: Function that waits for a command to Write into RMAC |
3392 | * ADDR DATA registers to be completed and returns either success or | |
3393 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3394 | * Return value: |
3395 | * SUCCESS on success and FAILURE on failure. | |
3396 | */ | |
3397 | ||
9fc93a41 | 3398 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, |
d44570e4 | 3399 | int bit_state) |
1da177e4 | 3400 | { |
9fc93a41 | 3401 | int ret = FAILURE, cnt = 0, delay = 1; |
1da177e4 LT |
3402 | u64 val64; |
3403 | ||
9fc93a41 SS |
3404 | if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET)) |
3405 | return FAILURE; | |
3406 | ||
3407 | do { | |
c92ca04b | 3408 | val64 = readq(addr); |
9fc93a41 SS |
3409 | if (bit_state == S2IO_BIT_RESET) { |
3410 | if (!(val64 & busy_bit)) { | |
3411 | ret = SUCCESS; | |
3412 | break; | |
3413 | } | |
3414 | } else { | |
2d146eb1 | 3415 | if (val64 & busy_bit) { |
9fc93a41 SS |
3416 | ret = SUCCESS; |
3417 | break; | |
3418 | } | |
1da177e4 | 3419 | } |
c92ca04b | 3420 | |
d44570e4 | 3421 | if (in_interrupt()) |
9fc93a41 | 3422 | mdelay(delay); |
c92ca04b | 3423 | else |
9fc93a41 | 3424 | msleep(delay); |
c92ca04b | 3425 | |
9fc93a41 SS |
3426 | if (++cnt >= 10) |
3427 | delay = 50; | |
3428 | } while (cnt < 20); | |
1da177e4 LT |
3429 | return ret; |
3430 | } | |
19a60522 SS |
3431 | /* |
3432 | * check_pci_device_id - Checks if the device id is supported | |
3433 | * @id : device id | |
3434 | * Description: Function to check if the pci device id is supported by driver. | |
3435 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3436 | */ | |
3437 | static u16 check_pci_device_id(u16 id) | |
3438 | { | |
3439 | switch (id) { | |
3440 | case PCI_DEVICE_ID_HERC_WIN: | |
3441 | case PCI_DEVICE_ID_HERC_UNI: | |
3442 | return XFRAME_II_DEVICE; | |
3443 | case PCI_DEVICE_ID_S2IO_UNI: | |
3444 | case PCI_DEVICE_ID_S2IO_WIN: | |
3445 | return XFRAME_I_DEVICE; | |
3446 | default: | |
3447 | return PCI_ANY_ID; | |
3448 | } | |
3449 | } | |
1da177e4 | 3450 | |
20346722 | 3451 | /** |
3452 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3453 | * @sp : private member of the device structure. |
3454 | * Description: Function to Reset the card. This function then also | |
20346722 | 3455 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3456 | * the card reset also resets the configuration space. |
3457 | * Return value: | |
3458 | * void. | |
3459 | */ | |
3460 | ||
d44570e4 | 3461 | static void s2io_reset(struct s2io_nic *sp) |
1da177e4 | 3462 | { |
1ee6dd77 | 3463 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3464 | u64 val64; |
5e25b9dd | 3465 | u16 subid, pci_cmd; |
19a60522 SS |
3466 | int i; |
3467 | u16 val16; | |
491976b2 SH |
3468 | unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt; |
3469 | unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt; | |
ffb5df6c JP |
3470 | struct stat_block *stats; |
3471 | struct swStat *swstats; | |
491976b2 | 3472 | |
9e39f7c5 | 3473 | DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n", |
3a22813a | 3474 | __func__, pci_name(sp->pdev)); |
1da177e4 | 3475 | |
0b1f7ebe | 3476 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3477 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3478 | |
1da177e4 LT |
3479 | val64 = SW_RESET_ALL; |
3480 | writeq(val64, &bar0->sw_reset); | |
d44570e4 | 3481 | if (strstr(sp->product_name, "CX4")) |
c92ca04b | 3482 | msleep(750); |
19a60522 SS |
3483 | msleep(250); |
3484 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3485 | |
19a60522 SS |
3486 | /* Restore the PCI state saved during initialization. */ |
3487 | pci_restore_state(sp->pdev); | |
b8a623bf | 3488 | pci_save_state(sp->pdev); |
19a60522 SS |
3489 | pci_read_config_word(sp->pdev, 0x2, &val16); |
3490 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3491 | break; | |
3492 | msleep(200); | |
3493 | } | |
1da177e4 | 3494 | |
d44570e4 JP |
3495 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) |
3496 | DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__); | |
19a60522 SS |
3497 | |
3498 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3499 | ||
3500 | s2io_init_pci(sp); | |
1da177e4 | 3501 | |
20346722 | 3502 | /* Set swapper to enable I/O register access */ |
3503 | s2io_set_swapper(sp); | |
3504 | ||
faa4f796 SH |
3505 | /* restore mac_addr entries */ |
3506 | do_s2io_restore_unicast_mc(sp); | |
3507 | ||
cc6e7c44 RA |
3508 | /* Restore the MSIX table entries from local variables */ |
3509 | restore_xmsi_data(sp); | |
3510 | ||
5e25b9dd | 3511 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3512 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3513 | /* Clear "detected parity error" bit */ |
303bcb4b | 3514 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3515 | |
303bcb4b | 3516 | /* Clearing PCIX Ecc status register */ |
3517 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3518 | |
303bcb4b | 3519 | /* Clearing PCI_STATUS error reflected here */ |
b7b5a128 | 3520 | writeq(s2BIT(62), &bar0->txpic_int_reg); |
303bcb4b | 3521 | } |
5e25b9dd | 3522 | |
20346722 | 3523 | /* Reset device statistics maintained by OS */ |
d44570e4 | 3524 | memset(&sp->stats, 0, sizeof(struct net_device_stats)); |
8a4bdbaa | 3525 | |
ffb5df6c JP |
3526 | stats = sp->mac_control.stats_info; |
3527 | swstats = &stats->sw_stat; | |
3528 | ||
491976b2 | 3529 | /* save link up/down time/cnt, reset/memory/watchdog cnt */ |
ffb5df6c JP |
3530 | up_cnt = swstats->link_up_cnt; |
3531 | down_cnt = swstats->link_down_cnt; | |
3532 | up_time = swstats->link_up_time; | |
3533 | down_time = swstats->link_down_time; | |
3534 | reset_cnt = swstats->soft_reset_cnt; | |
3535 | mem_alloc_cnt = swstats->mem_allocated; | |
3536 | mem_free_cnt = swstats->mem_freed; | |
3537 | watchdog_cnt = swstats->watchdog_timer_cnt; | |
3538 | ||
3539 | memset(stats, 0, sizeof(struct stat_block)); | |
3540 | ||
491976b2 | 3541 | /* restore link up/down time/cnt, reset/memory/watchdog cnt */ |
ffb5df6c JP |
3542 | swstats->link_up_cnt = up_cnt; |
3543 | swstats->link_down_cnt = down_cnt; | |
3544 | swstats->link_up_time = up_time; | |
3545 | swstats->link_down_time = down_time; | |
3546 | swstats->soft_reset_cnt = reset_cnt; | |
3547 | swstats->mem_allocated = mem_alloc_cnt; | |
3548 | swstats->mem_freed = mem_free_cnt; | |
3549 | swstats->watchdog_timer_cnt = watchdog_cnt; | |
20346722 | 3550 | |
1da177e4 LT |
3551 | /* SXE-002: Configure link and activity LED to turn it off */ |
3552 | subid = sp->pdev->subsystem_device; | |
541ae68f | 3553 | if (((subid & 0xFF) >= 0x07) && |
3554 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3555 | val64 = readq(&bar0->gpio_control); |
3556 | val64 |= 0x0000800000000000ULL; | |
3557 | writeq(val64, &bar0->gpio_control); | |
3558 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3559 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3560 | } |
3561 | ||
541ae68f | 3562 | /* |
25985edc | 3563 | * Clear spurious ECC interrupts that would have occurred on |
541ae68f | 3564 | * XFRAME II cards after reset. |
3565 | */ | |
3566 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3567 | val64 = readq(&bar0->pcc_err_reg); | |
3568 | writeq(val64, &bar0->pcc_err_reg); | |
3569 | } | |
3570 | ||
f957bcf0 | 3571 | sp->device_enabled_once = false; |
1da177e4 LT |
3572 | } |
3573 | ||
3574 | /** | |
20346722 | 3575 | * s2io_set_swapper - to set the swapper controle on the card |
3576 | * @sp : private member of the device structure, | |
1da177e4 | 3577 | * pointer to the s2io_nic structure. |
20346722 | 3578 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3579 | * correctly depending on the 'endianness' of the system. |
3580 | * Return value: | |
3581 | * SUCCESS on success and FAILURE on failure. | |
3582 | */ | |
3583 | ||
d44570e4 | 3584 | static int s2io_set_swapper(struct s2io_nic *sp) |
1da177e4 LT |
3585 | { |
3586 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3587 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3588 | u64 val64, valt, valr; |
3589 | ||
20346722 | 3590 | /* |
1da177e4 LT |
3591 | * Set proper endian settings and verify the same by reading |
3592 | * the PIF Feed-back register. | |
3593 | */ | |
3594 | ||
3595 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3596 | if (val64 != 0x0123456789ABCDEFULL) { | |
3597 | int i = 0; | |
85a56498 JM |
3598 | static const u64 value[] = { |
3599 | 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3600 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3601 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3602 | 0 /* FE=0, SE=0 */ | |
3603 | }; | |
1da177e4 | 3604 | |
d44570e4 | 3605 | while (i < 4) { |
1da177e4 LT |
3606 | writeq(value[i], &bar0->swapper_ctrl); |
3607 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3608 | if (val64 == 0x0123456789ABCDEFULL) | |
3609 | break; | |
3610 | i++; | |
3611 | } | |
3612 | if (i == 4) { | |
9e39f7c5 JP |
3613 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, " |
3614 | "feedback read %llx\n", | |
3615 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
3616 | return FAILURE; |
3617 | } | |
3618 | valr = value[i]; | |
3619 | } else { | |
3620 | valr = readq(&bar0->swapper_ctrl); | |
3621 | } | |
3622 | ||
3623 | valt = 0x0123456789ABCDEFULL; | |
3624 | writeq(valt, &bar0->xmsi_address); | |
3625 | val64 = readq(&bar0->xmsi_address); | |
3626 | ||
d44570e4 | 3627 | if (val64 != valt) { |
1da177e4 | 3628 | int i = 0; |
85a56498 JM |
3629 | static const u64 value[] = { |
3630 | 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3631 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3632 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3633 | 0 /* FE=0, SE=0 */ | |
3634 | }; | |
1da177e4 | 3635 | |
d44570e4 | 3636 | while (i < 4) { |
1da177e4 LT |
3637 | writeq((value[i] | valr), &bar0->swapper_ctrl); |
3638 | writeq(valt, &bar0->xmsi_address); | |
3639 | val64 = readq(&bar0->xmsi_address); | |
d44570e4 | 3640 | if (val64 == valt) |
1da177e4 LT |
3641 | break; |
3642 | i++; | |
3643 | } | |
d44570e4 | 3644 | if (i == 4) { |
20346722 | 3645 | unsigned long long x = val64; |
9e39f7c5 JP |
3646 | DBG_PRINT(ERR_DBG, |
3647 | "Write failed, Xmsi_addr reads:0x%llx\n", x); | |
1da177e4 LT |
3648 | return FAILURE; |
3649 | } | |
3650 | } | |
3651 | val64 = readq(&bar0->swapper_ctrl); | |
3652 | val64 &= 0xFFFF000000000000ULL; | |
3653 | ||
d44570e4 | 3654 | #ifdef __BIG_ENDIAN |
20346722 | 3655 | /* |
3656 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3657 | * big endian driver need not set anything. |
3658 | */ | |
3659 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
d44570e4 JP |
3660 | SWAPPER_CTRL_TXP_SE | |
3661 | SWAPPER_CTRL_TXD_R_FE | | |
3662 | SWAPPER_CTRL_TXD_W_FE | | |
3663 | SWAPPER_CTRL_TXF_R_FE | | |
3664 | SWAPPER_CTRL_RXD_R_FE | | |
3665 | SWAPPER_CTRL_RXD_W_FE | | |
3666 | SWAPPER_CTRL_RXF_W_FE | | |
3667 | SWAPPER_CTRL_XMSI_FE | | |
3668 | SWAPPER_CTRL_STATS_FE | | |
3669 | SWAPPER_CTRL_STATS_SE); | |
eaae7f72 | 3670 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3671 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3672 | writeq(val64, &bar0->swapper_ctrl); |
3673 | #else | |
20346722 | 3674 | /* |
1da177e4 | 3675 | * Initially we enable all bits to make it accessible by the |
20346722 | 3676 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3677 | * we want to set. |
3678 | */ | |
3679 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
d44570e4 JP |
3680 | SWAPPER_CTRL_TXP_SE | |
3681 | SWAPPER_CTRL_TXD_R_FE | | |
3682 | SWAPPER_CTRL_TXD_R_SE | | |
3683 | SWAPPER_CTRL_TXD_W_FE | | |
3684 | SWAPPER_CTRL_TXD_W_SE | | |
3685 | SWAPPER_CTRL_TXF_R_FE | | |
3686 | SWAPPER_CTRL_RXD_R_FE | | |
3687 | SWAPPER_CTRL_RXD_R_SE | | |
3688 | SWAPPER_CTRL_RXD_W_FE | | |
3689 | SWAPPER_CTRL_RXD_W_SE | | |
3690 | SWAPPER_CTRL_RXF_W_FE | | |
3691 | SWAPPER_CTRL_XMSI_FE | | |
3692 | SWAPPER_CTRL_STATS_FE | | |
3693 | SWAPPER_CTRL_STATS_SE); | |
eaae7f72 | 3694 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3695 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3696 | writeq(val64, &bar0->swapper_ctrl); |
3697 | #endif | |
3698 | val64 = readq(&bar0->swapper_ctrl); | |
3699 | ||
20346722 | 3700 | /* |
3701 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3702 | * feedback register. |
3703 | */ | |
3704 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3705 | if (val64 != 0x0123456789ABCDEFULL) { | |
3706 | /* Endian settings are incorrect, calls for another dekko. */ | |
9e39f7c5 JP |
3707 | DBG_PRINT(ERR_DBG, |
3708 | "%s: Endian settings are wrong, feedback read %llx\n", | |
3709 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
3710 | return FAILURE; |
3711 | } | |
3712 | ||
3713 | return SUCCESS; | |
3714 | } | |
3715 | ||
1ee6dd77 | 3716 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3717 | { |
1ee6dd77 | 3718 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3719 | u64 val64; |
3720 | int ret = 0, cnt = 0; | |
3721 | ||
3722 | do { | |
3723 | val64 = readq(&bar0->xmsi_access); | |
b7b5a128 | 3724 | if (!(val64 & s2BIT(15))) |
cc6e7c44 RA |
3725 | break; |
3726 | mdelay(1); | |
3727 | cnt++; | |
d44570e4 | 3728 | } while (cnt < 5); |
cc6e7c44 RA |
3729 | if (cnt == 5) { |
3730 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3731 | ret = 1; | |
3732 | } | |
3733 | ||
3734 | return ret; | |
3735 | } | |
3736 | ||
1ee6dd77 | 3737 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3738 | { |
1ee6dd77 | 3739 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 | 3740 | u64 val64; |
f61e0a35 SH |
3741 | int i, msix_index; |
3742 | ||
f61e0a35 SH |
3743 | if (nic->device_type == XFRAME_I_DEVICE) |
3744 | return; | |
cc6e7c44 | 3745 | |
d44570e4 JP |
3746 | for (i = 0; i < MAX_REQUESTED_MSI_X; i++) { |
3747 | msix_index = (i) ? ((i-1) * 8 + 1) : 0; | |
cc6e7c44 RA |
3748 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3749 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
f61e0a35 | 3750 | val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6)); |
cc6e7c44 | 3751 | writeq(val64, &bar0->xmsi_access); |
f61e0a35 | 3752 | if (wait_for_msix_trans(nic, msix_index)) { |
9e39f7c5 JP |
3753 | DBG_PRINT(ERR_DBG, "%s: index: %d failed\n", |
3754 | __func__, msix_index); | |
cc6e7c44 RA |
3755 | continue; |
3756 | } | |
3757 | } | |
3758 | } | |
3759 | ||
1ee6dd77 | 3760 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3761 | { |
1ee6dd77 | 3762 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 | 3763 | u64 val64, addr, data; |
f61e0a35 SH |
3764 | int i, msix_index; |
3765 | ||
3766 | if (nic->device_type == XFRAME_I_DEVICE) | |
3767 | return; | |
cc6e7c44 RA |
3768 | |
3769 | /* Store and display */ | |
d44570e4 JP |
3770 | for (i = 0; i < MAX_REQUESTED_MSI_X; i++) { |
3771 | msix_index = (i) ? ((i-1) * 8 + 1) : 0; | |
f61e0a35 | 3772 | val64 = (s2BIT(15) | vBIT(msix_index, 26, 6)); |
cc6e7c44 | 3773 | writeq(val64, &bar0->xmsi_access); |
f61e0a35 | 3774 | if (wait_for_msix_trans(nic, msix_index)) { |
9e39f7c5 JP |
3775 | DBG_PRINT(ERR_DBG, "%s: index: %d failed\n", |
3776 | __func__, msix_index); | |
cc6e7c44 RA |
3777 | continue; |
3778 | } | |
3779 | addr = readq(&bar0->xmsi_address); | |
3780 | data = readq(&bar0->xmsi_data); | |
3781 | if (addr && data) { | |
3782 | nic->msix_info[i].addr = addr; | |
3783 | nic->msix_info[i].data = data; | |
3784 | } | |
3785 | } | |
3786 | } | |
3787 | ||
1ee6dd77 | 3788 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3789 | { |
1ee6dd77 | 3790 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
ac731ab6 | 3791 | u64 rx_mat; |
cc6e7c44 RA |
3792 | u16 msi_control; /* Temp variable */ |
3793 | int ret, i, j, msix_indx = 1; | |
4f870320 | 3794 | int size; |
ffb5df6c JP |
3795 | struct stat_block *stats = nic->mac_control.stats_info; |
3796 | struct swStat *swstats = &stats->sw_stat; | |
cc6e7c44 | 3797 | |
4f870320 | 3798 | size = nic->num_entries * sizeof(struct msix_entry); |
44364a03 | 3799 | nic->entries = kzalloc(size, GFP_KERNEL); |
bd684e43 | 3800 | if (!nic->entries) { |
d44570e4 JP |
3801 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
3802 | __func__); | |
ffb5df6c | 3803 | swstats->mem_alloc_fail_cnt++; |
cc6e7c44 RA |
3804 | return -ENOMEM; |
3805 | } | |
ffb5df6c | 3806 | swstats->mem_allocated += size; |
f61e0a35 | 3807 | |
4f870320 | 3808 | size = nic->num_entries * sizeof(struct s2io_msix_entry); |
44364a03 | 3809 | nic->s2io_entries = kzalloc(size, GFP_KERNEL); |
bd684e43 | 3810 | if (!nic->s2io_entries) { |
8a4bdbaa | 3811 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
d44570e4 | 3812 | __func__); |
ffb5df6c | 3813 | swstats->mem_alloc_fail_cnt++; |
cc6e7c44 | 3814 | kfree(nic->entries); |
ffb5df6c | 3815 | swstats->mem_freed |
f61e0a35 | 3816 | += (nic->num_entries * sizeof(struct msix_entry)); |
cc6e7c44 RA |
3817 | return -ENOMEM; |
3818 | } | |
ffb5df6c | 3819 | swstats->mem_allocated += size; |
cc6e7c44 | 3820 | |
ac731ab6 SH |
3821 | nic->entries[0].entry = 0; |
3822 | nic->s2io_entries[0].entry = 0; | |
3823 | nic->s2io_entries[0].in_use = MSIX_FLG; | |
3824 | nic->s2io_entries[0].type = MSIX_ALARM_TYPE; | |
3825 | nic->s2io_entries[0].arg = &nic->mac_control.fifos; | |
3826 | ||
f61e0a35 SH |
3827 | for (i = 1; i < nic->num_entries; i++) { |
3828 | nic->entries[i].entry = ((i - 1) * 8) + 1; | |
3829 | nic->s2io_entries[i].entry = ((i - 1) * 8) + 1; | |
cc6e7c44 RA |
3830 | nic->s2io_entries[i].arg = NULL; |
3831 | nic->s2io_entries[i].in_use = 0; | |
3832 | } | |
3833 | ||
8a4bdbaa | 3834 | rx_mat = readq(&bar0->rx_mat); |
f61e0a35 | 3835 | for (j = 0; j < nic->config.rx_ring_num; j++) { |
8a4bdbaa | 3836 | rx_mat |= RX_MAT_SET(j, msix_indx); |
f61e0a35 SH |
3837 | nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j]; |
3838 | nic->s2io_entries[j+1].type = MSIX_RING_TYPE; | |
3839 | nic->s2io_entries[j+1].in_use = MSIX_FLG; | |
3840 | msix_indx += 8; | |
cc6e7c44 | 3841 | } |
8a4bdbaa | 3842 | writeq(rx_mat, &bar0->rx_mat); |
f61e0a35 | 3843 | readq(&bar0->rx_mat); |
cc6e7c44 | 3844 | |
f61e0a35 | 3845 | ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries); |
c92ca04b | 3846 | /* We fail init if error or we get less vectors than min required */ |
cc6e7c44 | 3847 | if (ret) { |
9e39f7c5 | 3848 | DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n"); |
cc6e7c44 | 3849 | kfree(nic->entries); |
ffb5df6c JP |
3850 | swstats->mem_freed += nic->num_entries * |
3851 | sizeof(struct msix_entry); | |
cc6e7c44 | 3852 | kfree(nic->s2io_entries); |
ffb5df6c JP |
3853 | swstats->mem_freed += nic->num_entries * |
3854 | sizeof(struct s2io_msix_entry); | |
cc6e7c44 RA |
3855 | nic->entries = NULL; |
3856 | nic->s2io_entries = NULL; | |
3857 | return -ENOMEM; | |
3858 | } | |
3859 | ||
3860 | /* | |
3861 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3862 | * in the herc NIC. (Temp change, needs to be removed later) | |
3863 | */ | |
3864 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3865 | msi_control |= 0x1; /* Enable MSI */ | |
3866 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3867 | ||
3868 | return 0; | |
3869 | } | |
3870 | ||
8abc4d5b | 3871 | /* Handle software interrupt used during MSI(X) test */ |
33390a70 | 3872 | static irqreturn_t s2io_test_intr(int irq, void *dev_id) |
8abc4d5b SS |
3873 | { |
3874 | struct s2io_nic *sp = dev_id; | |
3875 | ||
3876 | sp->msi_detected = 1; | |
3877 | wake_up(&sp->msi_wait); | |
3878 | ||
3879 | return IRQ_HANDLED; | |
3880 | } | |
3881 | ||
3882 | /* Test interrupt path by forcing a a software IRQ */ | |
33390a70 | 3883 | static int s2io_test_msi(struct s2io_nic *sp) |
8abc4d5b SS |
3884 | { |
3885 | struct pci_dev *pdev = sp->pdev; | |
3886 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
3887 | int err; | |
3888 | u64 val64, saved64; | |
3889 | ||
3890 | err = request_irq(sp->entries[1].vector, s2io_test_intr, 0, | |
d44570e4 | 3891 | sp->name, sp); |
8abc4d5b SS |
3892 | if (err) { |
3893 | DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n", | |
d44570e4 | 3894 | sp->dev->name, pci_name(pdev), pdev->irq); |
8abc4d5b SS |
3895 | return err; |
3896 | } | |
3897 | ||
d44570e4 | 3898 | init_waitqueue_head(&sp->msi_wait); |
8abc4d5b SS |
3899 | sp->msi_detected = 0; |
3900 | ||
3901 | saved64 = val64 = readq(&bar0->scheduled_int_ctrl); | |
3902 | val64 |= SCHED_INT_CTRL_ONE_SHOT; | |
3903 | val64 |= SCHED_INT_CTRL_TIMER_EN; | |
3904 | val64 |= SCHED_INT_CTRL_INT2MSI(1); | |
3905 | writeq(val64, &bar0->scheduled_int_ctrl); | |
3906 | ||
3907 | wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10); | |
3908 | ||
3909 | if (!sp->msi_detected) { | |
3910 | /* MSI(X) test failed, go back to INTx mode */ | |
2450022a | 3911 | DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated " |
9e39f7c5 JP |
3912 | "using MSI(X) during test\n", |
3913 | sp->dev->name, pci_name(pdev)); | |
8abc4d5b SS |
3914 | |
3915 | err = -EOPNOTSUPP; | |
3916 | } | |
3917 | ||
3918 | free_irq(sp->entries[1].vector, sp); | |
3919 | ||
3920 | writeq(saved64, &bar0->scheduled_int_ctrl); | |
3921 | ||
3922 | return err; | |
3923 | } | |
18b2b7bd SH |
3924 | |
3925 | static void remove_msix_isr(struct s2io_nic *sp) | |
3926 | { | |
3927 | int i; | |
3928 | u16 msi_control; | |
3929 | ||
f61e0a35 | 3930 | for (i = 0; i < sp->num_entries; i++) { |
d44570e4 | 3931 | if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) { |
18b2b7bd SH |
3932 | int vector = sp->entries[i].vector; |
3933 | void *arg = sp->s2io_entries[i].arg; | |
3934 | free_irq(vector, arg); | |
3935 | } | |
3936 | } | |
3937 | ||
3938 | kfree(sp->entries); | |
3939 | kfree(sp->s2io_entries); | |
3940 | sp->entries = NULL; | |
3941 | sp->s2io_entries = NULL; | |
3942 | ||
3943 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
3944 | msi_control &= 0xFFFE; /* Disable MSI */ | |
3945 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
3946 | ||
3947 | pci_disable_msix(sp->pdev); | |
3948 | } | |
3949 | ||
3950 | static void remove_inta_isr(struct s2io_nic *sp) | |
3951 | { | |
3952 | struct net_device *dev = sp->dev; | |
3953 | ||
3954 | free_irq(sp->pdev->irq, dev); | |
3955 | } | |
3956 | ||
1da177e4 LT |
3957 | /* ********************************************************* * |
3958 | * Functions defined below concern the OS part of the driver * | |
3959 | * ********************************************************* */ | |
3960 | ||
20346722 | 3961 | /** |
1da177e4 LT |
3962 | * s2io_open - open entry point of the driver |
3963 | * @dev : pointer to the device structure. | |
3964 | * Description: | |
3965 | * This function is the open entry point of the driver. It mainly calls a | |
3966 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3967 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3968 | * Return value: |
3969 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3970 | * file on failure. | |
3971 | */ | |
3972 | ||
ac1f60db | 3973 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3974 | { |
4cf1653a | 3975 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c | 3976 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
3977 | int err = 0; |
3978 | ||
20346722 | 3979 | /* |
3980 | * Make sure you have link off by default every time | |
1da177e4 LT |
3981 | * Nic is initialized |
3982 | */ | |
3983 | netif_carrier_off(dev); | |
0b1f7ebe | 3984 | sp->last_link_state = 0; |
1da177e4 LT |
3985 | |
3986 | /* Initialize H/W and enable interrupts */ | |
c92ca04b AR |
3987 | err = s2io_card_up(sp); |
3988 | if (err) { | |
1da177e4 LT |
3989 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3990 | dev->name); | |
e6a8fee2 | 3991 | goto hw_init_failed; |
1da177e4 LT |
3992 | } |
3993 | ||
2fd37688 | 3994 | if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) { |
1da177e4 | 3995 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); |
e6a8fee2 | 3996 | s2io_card_down(sp); |
20346722 | 3997 | err = -ENODEV; |
e6a8fee2 | 3998 | goto hw_init_failed; |
1da177e4 | 3999 | } |
3a3d5756 | 4000 | s2io_start_all_tx_queue(sp); |
1da177e4 | 4001 | return 0; |
20346722 | 4002 | |
20346722 | 4003 | hw_init_failed: |
eaae7f72 | 4004 | if (sp->config.intr_type == MSI_X) { |
491976b2 | 4005 | if (sp->entries) { |
cc6e7c44 | 4006 | kfree(sp->entries); |
ffb5df6c JP |
4007 | swstats->mem_freed += sp->num_entries * |
4008 | sizeof(struct msix_entry); | |
491976b2 SH |
4009 | } |
4010 | if (sp->s2io_entries) { | |
cc6e7c44 | 4011 | kfree(sp->s2io_entries); |
ffb5df6c JP |
4012 | swstats->mem_freed += sp->num_entries * |
4013 | sizeof(struct s2io_msix_entry); | |
491976b2 | 4014 | } |
cc6e7c44 | 4015 | } |
20346722 | 4016 | return err; |
1da177e4 LT |
4017 | } |
4018 | ||
4019 | /** | |
4020 | * s2io_close -close entry point of the driver | |
4021 | * @dev : device pointer. | |
4022 | * Description: | |
4023 | * This is the stop entry point of the driver. It needs to undo exactly | |
4024 | * whatever was done by the open entry point,thus it's usually referred to | |
4025 | * as the close function.Among other things this function mainly stops the | |
4026 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
4027 | * Return value: | |
4028 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
4029 | * file on failure. | |
4030 | */ | |
4031 | ||
ac1f60db | 4032 | static int s2io_close(struct net_device *dev) |
1da177e4 | 4033 | { |
4cf1653a | 4034 | struct s2io_nic *sp = netdev_priv(dev); |
faa4f796 SH |
4035 | struct config_param *config = &sp->config; |
4036 | u64 tmp64; | |
4037 | int offset; | |
cc6e7c44 | 4038 | |
9f74ffde | 4039 | /* Return if the device is already closed * |
d44570e4 JP |
4040 | * Can happen when s2io_card_up failed in change_mtu * |
4041 | */ | |
9f74ffde SH |
4042 | if (!is_s2io_card_up(sp)) |
4043 | return 0; | |
4044 | ||
3a3d5756 | 4045 | s2io_stop_all_tx_queue(sp); |
faa4f796 SH |
4046 | /* delete all populated mac entries */ |
4047 | for (offset = 1; offset < config->max_mc_addr; offset++) { | |
4048 | tmp64 = do_s2io_read_unicast_mc(sp, offset); | |
4049 | if (tmp64 != S2IO_DISABLE_MAC_ENTRY) | |
4050 | do_s2io_delete_unicast_mc(sp, tmp64); | |
4051 | } | |
4052 | ||
e6a8fee2 | 4053 | s2io_card_down(sp); |
cc6e7c44 | 4054 | |
1da177e4 LT |
4055 | return 0; |
4056 | } | |
4057 | ||
4058 | /** | |
4059 | * s2io_xmit - Tx entry point of te driver | |
4060 | * @skb : the socket buffer containing the Tx data. | |
4061 | * @dev : device pointer. | |
4062 | * Description : | |
4063 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
4064 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
25985edc | 4065 | * NOTE: when device can't queue the pkt,just the trans_start variable will |
1da177e4 LT |
4066 | * not be upadted. |
4067 | * Return value: | |
4068 | * 0 on success & 1 on failure. | |
4069 | */ | |
4070 | ||
61357325 | 4071 | static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 4072 | { |
4cf1653a | 4073 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
4074 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
4075 | register u64 val64; | |
1ee6dd77 RB |
4076 | struct TxD *txdp; |
4077 | struct TxFIFO_element __iomem *tx_fifo; | |
2fda096d | 4078 | unsigned long flags = 0; |
be3a6b02 | 4079 | u16 vlan_tag = 0; |
2fda096d | 4080 | struct fifo_info *fifo = NULL; |
6cfc482b | 4081 | int do_spin_lock = 1; |
75c30b13 | 4082 | int offload_type; |
6cfc482b | 4083 | int enable_per_list_interrupt = 0; |
ffb5df6c JP |
4084 | struct config_param *config = &sp->config; |
4085 | struct mac_info *mac_control = &sp->mac_control; | |
4086 | struct stat_block *stats = mac_control->stats_info; | |
4087 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 | 4088 | |
20346722 | 4089 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
491976b2 SH |
4090 | |
4091 | if (unlikely(skb->len <= 0)) { | |
9e39f7c5 | 4092 | DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name); |
491976b2 | 4093 | dev_kfree_skb_any(skb); |
6ed10654 | 4094 | return NETDEV_TX_OK; |
2fda096d | 4095 | } |
491976b2 | 4096 | |
92b84437 | 4097 | if (!is_s2io_card_up(sp)) { |
20346722 | 4098 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 | 4099 | dev->name); |
20346722 | 4100 | dev_kfree_skb(skb); |
6ed10654 | 4101 | return NETDEV_TX_OK; |
1da177e4 LT |
4102 | } |
4103 | ||
4104 | queue = 0; | |
eab6d18d | 4105 | if (vlan_tx_tag_present(skb)) |
be3a6b02 | 4106 | vlan_tag = vlan_tx_tag_get(skb); |
6cfc482b SH |
4107 | if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) { |
4108 | if (skb->protocol == htons(ETH_P_IP)) { | |
4109 | struct iphdr *ip; | |
4110 | struct tcphdr *th; | |
4111 | ip = ip_hdr(skb); | |
4112 | ||
4113 | if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) { | |
4114 | th = (struct tcphdr *)(((unsigned char *)ip) + | |
d44570e4 | 4115 | ip->ihl*4); |
6cfc482b SH |
4116 | |
4117 | if (ip->protocol == IPPROTO_TCP) { | |
4118 | queue_len = sp->total_tcp_fifos; | |
4119 | queue = (ntohs(th->source) + | |
d44570e4 JP |
4120 | ntohs(th->dest)) & |
4121 | sp->fifo_selector[queue_len - 1]; | |
6cfc482b SH |
4122 | if (queue >= queue_len) |
4123 | queue = queue_len - 1; | |
4124 | } else if (ip->protocol == IPPROTO_UDP) { | |
4125 | queue_len = sp->total_udp_fifos; | |
4126 | queue = (ntohs(th->source) + | |
d44570e4 JP |
4127 | ntohs(th->dest)) & |
4128 | sp->fifo_selector[queue_len - 1]; | |
6cfc482b SH |
4129 | if (queue >= queue_len) |
4130 | queue = queue_len - 1; | |
4131 | queue += sp->udp_fifo_idx; | |
4132 | if (skb->len > 1024) | |
4133 | enable_per_list_interrupt = 1; | |
4134 | do_spin_lock = 0; | |
4135 | } | |
4136 | } | |
4137 | } | |
4138 | } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING) | |
4139 | /* get fifo number based on skb->priority value */ | |
4140 | queue = config->fifo_mapping | |
d44570e4 | 4141 | [skb->priority & (MAX_TX_FIFOS - 1)]; |
6cfc482b | 4142 | fifo = &mac_control->fifos[queue]; |
3a3d5756 | 4143 | |
6cfc482b SH |
4144 | if (do_spin_lock) |
4145 | spin_lock_irqsave(&fifo->tx_lock, flags); | |
4146 | else { | |
4147 | if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags))) | |
4148 | return NETDEV_TX_LOCKED; | |
4149 | } | |
be3a6b02 | 4150 | |
3a3d5756 SH |
4151 | if (sp->config.multiq) { |
4152 | if (__netif_subqueue_stopped(dev, fifo->fifo_no)) { | |
4153 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
4154 | return NETDEV_TX_BUSY; | |
4155 | } | |
b19fa1fa | 4156 | } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) { |
3a3d5756 SH |
4157 | if (netif_queue_stopped(dev)) { |
4158 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
4159 | return NETDEV_TX_BUSY; | |
4160 | } | |
4161 | } | |
4162 | ||
d44570e4 JP |
4163 | put_off = (u16)fifo->tx_curr_put_info.offset; |
4164 | get_off = (u16)fifo->tx_curr_get_info.offset; | |
4165 | txdp = (struct TxD *)fifo->list_info[put_off].list_virt_addr; | |
20346722 | 4166 | |
2fda096d | 4167 | queue_len = fifo->tx_curr_put_info.fifo_len + 1; |
1da177e4 | 4168 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 | 4169 | if (txdp->Host_Control || |
d44570e4 | 4170 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
776bd20f | 4171 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
3a3d5756 | 4172 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
1da177e4 | 4173 | dev_kfree_skb(skb); |
2fda096d | 4174 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
6ed10654 | 4175 | return NETDEV_TX_OK; |
1da177e4 | 4176 | } |
0b1f7ebe | 4177 | |
75c30b13 | 4178 | offload_type = s2io_offload_type(skb); |
75c30b13 | 4179 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 4180 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 4181 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 4182 | } |
84fa7933 | 4183 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
d44570e4 JP |
4184 | txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN | |
4185 | TXD_TX_CKO_TCP_EN | | |
4186 | TXD_TX_CKO_UDP_EN); | |
1da177e4 | 4187 | } |
fed5eccd AR |
4188 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
4189 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
2fda096d | 4190 | txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no); |
6cfc482b SH |
4191 | if (enable_per_list_interrupt) |
4192 | if (put_off & (queue_len >> 5)) | |
4193 | txdp->Control_2 |= TXD_INT_TYPE_PER_LIST; | |
3a3d5756 | 4194 | if (vlan_tag) { |
be3a6b02 | 4195 | txdp->Control_2 |= TXD_VLAN_ENABLE; |
4196 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
4197 | } | |
4198 | ||
e743d313 | 4199 | frg_len = skb_headlen(skb); |
75c30b13 | 4200 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
4201 | int ufo_size; |
4202 | ||
75c30b13 | 4203 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
4204 | ufo_size &= ~7; |
4205 | txdp->Control_1 |= TXD_UFO_EN; | |
4206 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
4207 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
4208 | #ifdef __BIG_ENDIAN | |
3459feb8 | 4209 | /* both variants do cpu_to_be64(be32_to_cpu(...)) */ |
2fda096d | 4210 | fifo->ufo_in_band_v[put_off] = |
d44570e4 | 4211 | (__force u64)skb_shinfo(skb)->ip6_frag_id; |
fed5eccd | 4212 | #else |
2fda096d | 4213 | fifo->ufo_in_band_v[put_off] = |
d44570e4 | 4214 | (__force u64)skb_shinfo(skb)->ip6_frag_id << 32; |
fed5eccd | 4215 | #endif |
2fda096d | 4216 | txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v; |
fed5eccd | 4217 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, |
d44570e4 JP |
4218 | fifo->ufo_in_band_v, |
4219 | sizeof(u64), | |
4220 | PCI_DMA_TODEVICE); | |
8d8bb39b | 4221 | if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) |
491abf25 | 4222 | goto pci_map_failed; |
fed5eccd | 4223 | txdp++; |
fed5eccd | 4224 | } |
1da177e4 | 4225 | |
d44570e4 JP |
4226 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data, |
4227 | frg_len, PCI_DMA_TODEVICE); | |
8d8bb39b | 4228 | if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) |
491abf25 VP |
4229 | goto pci_map_failed; |
4230 | ||
d44570e4 | 4231 | txdp->Host_Control = (unsigned long)skb; |
fed5eccd | 4232 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); |
75c30b13 | 4233 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4234 | txdp->Control_1 |= TXD_UFO_EN; |
4235 | ||
4236 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
4237 | /* For fragmented SKB. */ |
4238 | for (i = 0; i < frg_cnt; i++) { | |
4239 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe | 4240 | /* A '0' length fragment will be ignored */ |
4241 | if (!frag->size) | |
4242 | continue; | |
1da177e4 | 4243 | txdp++; |
d44570e4 JP |
4244 | txdp->Buffer_Pointer = (u64)pci_map_page(sp->pdev, frag->page, |
4245 | frag->page_offset, | |
4246 | frag->size, | |
4247 | PCI_DMA_TODEVICE); | |
efd51b5c | 4248 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 4249 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 4250 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
4251 | } |
4252 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
4253 | ||
75c30b13 | 4254 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4255 | frg_cnt++; /* as Txd0 was used for inband header */ |
4256 | ||
1da177e4 | 4257 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
2fda096d | 4258 | val64 = fifo->list_info[put_off].list_phy_addr; |
1da177e4 LT |
4259 | writeq(val64, &tx_fifo->TxDL_Pointer); |
4260 | ||
4261 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
4262 | TX_FIFO_LAST_LIST); | |
75c30b13 | 4263 | if (offload_type) |
fed5eccd | 4264 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 4265 | |
1da177e4 LT |
4266 | writeq(val64, &tx_fifo->List_Control); |
4267 | ||
303bcb4b | 4268 | mmiowb(); |
4269 | ||
1da177e4 | 4270 | put_off++; |
2fda096d | 4271 | if (put_off == fifo->tx_curr_put_info.fifo_len + 1) |
863c11a9 | 4272 | put_off = 0; |
2fda096d | 4273 | fifo->tx_curr_put_info.offset = put_off; |
1da177e4 LT |
4274 | |
4275 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 4276 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
ffb5df6c | 4277 | swstats->fifo_full_cnt++; |
1da177e4 LT |
4278 | DBG_PRINT(TX_DBG, |
4279 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
4280 | put_off, get_off); | |
3a3d5756 | 4281 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
1da177e4 | 4282 | } |
ffb5df6c | 4283 | swstats->mem_allocated += skb->truesize; |
2fda096d | 4284 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
1da177e4 | 4285 | |
f6f4bfa3 SH |
4286 | if (sp->config.intr_type == MSI_X) |
4287 | tx_intr_handler(fifo); | |
4288 | ||
6ed10654 | 4289 | return NETDEV_TX_OK; |
ffb5df6c | 4290 | |
491abf25 | 4291 | pci_map_failed: |
ffb5df6c | 4292 | swstats->pci_map_fail_cnt++; |
3a3d5756 | 4293 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
ffb5df6c | 4294 | swstats->mem_freed += skb->truesize; |
491abf25 | 4295 | dev_kfree_skb(skb); |
2fda096d | 4296 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
6ed10654 | 4297 | return NETDEV_TX_OK; |
1da177e4 LT |
4298 | } |
4299 | ||
25fff88e | 4300 | static void |
4301 | s2io_alarm_handle(unsigned long data) | |
4302 | { | |
1ee6dd77 | 4303 | struct s2io_nic *sp = (struct s2io_nic *)data; |
8116f3cf | 4304 | struct net_device *dev = sp->dev; |
25fff88e | 4305 | |
8116f3cf | 4306 | s2io_handle_errors(dev); |
25fff88e | 4307 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); |
4308 | } | |
4309 | ||
7d12e780 | 4310 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4311 | { |
1ee6dd77 RB |
4312 | struct ring_info *ring = (struct ring_info *)dev_id; |
4313 | struct s2io_nic *sp = ring->nic; | |
f61e0a35 | 4314 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
cc6e7c44 | 4315 | |
f61e0a35 | 4316 | if (unlikely(!is_s2io_card_up(sp))) |
92b84437 | 4317 | return IRQ_HANDLED; |
92b84437 | 4318 | |
f61e0a35 | 4319 | if (sp->config.napi) { |
1a79d1c3 AV |
4320 | u8 __iomem *addr = NULL; |
4321 | u8 val8 = 0; | |
f61e0a35 | 4322 | |
1a79d1c3 | 4323 | addr = (u8 __iomem *)&bar0->xmsi_mask_reg; |
f61e0a35 SH |
4324 | addr += (7 - ring->ring_no); |
4325 | val8 = (ring->ring_no == 0) ? 0x7f : 0xff; | |
4326 | writeb(val8, addr); | |
4327 | val8 = readb(addr); | |
288379f0 | 4328 | napi_schedule(&ring->napi); |
f61e0a35 SH |
4329 | } else { |
4330 | rx_intr_handler(ring, 0); | |
8d8bb39b | 4331 | s2io_chk_rx_buffers(sp, ring); |
f61e0a35 | 4332 | } |
7d3d0439 | 4333 | |
cc6e7c44 RA |
4334 | return IRQ_HANDLED; |
4335 | } | |
4336 | ||
7d12e780 | 4337 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4338 | { |
ac731ab6 SH |
4339 | int i; |
4340 | struct fifo_info *fifos = (struct fifo_info *)dev_id; | |
4341 | struct s2io_nic *sp = fifos->nic; | |
4342 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
4343 | struct config_param *config = &sp->config; | |
4344 | u64 reason; | |
cc6e7c44 | 4345 | |
ac731ab6 SH |
4346 | if (unlikely(!is_s2io_card_up(sp))) |
4347 | return IRQ_NONE; | |
4348 | ||
4349 | reason = readq(&bar0->general_int_status); | |
4350 | if (unlikely(reason == S2IO_MINUS_ONE)) | |
4351 | /* Nothing much can be done. Get out */ | |
92b84437 | 4352 | return IRQ_HANDLED; |
92b84437 | 4353 | |
01e16faa SH |
4354 | if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) { |
4355 | writeq(S2IO_MINUS_ONE, &bar0->general_int_mask); | |
ac731ab6 | 4356 | |
01e16faa SH |
4357 | if (reason & GEN_INTR_TXPIC) |
4358 | s2io_txpic_intr_handle(sp); | |
ac731ab6 | 4359 | |
01e16faa SH |
4360 | if (reason & GEN_INTR_TXTRAFFIC) |
4361 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
ac731ab6 | 4362 | |
01e16faa SH |
4363 | for (i = 0; i < config->tx_fifo_num; i++) |
4364 | tx_intr_handler(&fifos[i]); | |
ac731ab6 | 4365 | |
01e16faa SH |
4366 | writeq(sp->general_int_mask, &bar0->general_int_mask); |
4367 | readl(&bar0->general_int_status); | |
4368 | return IRQ_HANDLED; | |
4369 | } | |
4370 | /* The interrupt was not raised by us */ | |
4371 | return IRQ_NONE; | |
cc6e7c44 | 4372 | } |
ac731ab6 | 4373 | |
1ee6dd77 | 4374 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4375 | { |
1ee6dd77 | 4376 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d | 4377 | u64 val64; |
4378 | ||
4379 | val64 = readq(&bar0->pic_int_status); | |
4380 | if (val64 & PIC_INT_GPIO) { | |
4381 | val64 = readq(&bar0->gpio_int_reg); | |
4382 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4383 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4384 | /* |
4385 | * This is unstable state so clear both up/down | |
4386 | * interrupt and adapter to re-evaluate the link state. | |
4387 | */ | |
d44570e4 | 4388 | val64 |= GPIO_INT_REG_LINK_DOWN; |
a371a07d | 4389 | val64 |= GPIO_INT_REG_LINK_UP; |
4390 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4391 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4392 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4393 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4394 | writeq(val64, &bar0->gpio_int_mask); |
d44570e4 | 4395 | } else if (val64 & GPIO_INT_REG_LINK_UP) { |
c92ca04b | 4396 | val64 = readq(&bar0->adapter_status); |
d44570e4 | 4397 | /* Enable Adapter */ |
19a60522 SS |
4398 | val64 = readq(&bar0->adapter_control); |
4399 | val64 |= ADAPTER_CNTL_EN; | |
4400 | writeq(val64, &bar0->adapter_control); | |
4401 | val64 |= ADAPTER_LED_ON; | |
4402 | writeq(val64, &bar0->adapter_control); | |
4403 | if (!sp->device_enabled_once) | |
4404 | sp->device_enabled_once = 1; | |
c92ca04b | 4405 | |
19a60522 SS |
4406 | s2io_link(sp, LINK_UP); |
4407 | /* | |
4408 | * unmask link down interrupt and mask link-up | |
4409 | * intr | |
4410 | */ | |
4411 | val64 = readq(&bar0->gpio_int_mask); | |
4412 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4413 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4414 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4415 | |
d44570e4 | 4416 | } else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
c92ca04b | 4417 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
4418 | s2io_link(sp, LINK_DOWN); |
4419 | /* Link is down so unmaks link up interrupt */ | |
4420 | val64 = readq(&bar0->gpio_int_mask); | |
4421 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4422 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4423 | writeq(val64, &bar0->gpio_int_mask); | |
ac1f90d6 SS |
4424 | |
4425 | /* turn off LED */ | |
4426 | val64 = readq(&bar0->adapter_control); | |
d44570e4 | 4427 | val64 = val64 & (~ADAPTER_LED_ON); |
ac1f90d6 | 4428 | writeq(val64, &bar0->adapter_control); |
a371a07d | 4429 | } |
4430 | } | |
c92ca04b | 4431 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d | 4432 | } |
4433 | ||
8116f3cf SS |
4434 | /** |
4435 | * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter | |
4436 | * @value: alarm bits | |
4437 | * @addr: address value | |
4438 | * @cnt: counter variable | |
4439 | * Description: Check for alarm and increment the counter | |
4440 | * Return Value: | |
4441 | * 1 - if alarm bit set | |
4442 | * 0 - if alarm bit is not set | |
4443 | */ | |
d44570e4 JP |
4444 | static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr, |
4445 | unsigned long long *cnt) | |
8116f3cf SS |
4446 | { |
4447 | u64 val64; | |
4448 | val64 = readq(addr); | |
d44570e4 | 4449 | if (val64 & value) { |
8116f3cf SS |
4450 | writeq(val64, addr); |
4451 | (*cnt)++; | |
4452 | return 1; | |
4453 | } | |
4454 | return 0; | |
4455 | ||
4456 | } | |
4457 | ||
4458 | /** | |
4459 | * s2io_handle_errors - Xframe error indication handler | |
4460 | * @nic: device private variable | |
4461 | * Description: Handle alarms such as loss of link, single or | |
4462 | * double ECC errors, critical and serious errors. | |
4463 | * Return Value: | |
4464 | * NONE | |
4465 | */ | |
d44570e4 | 4466 | static void s2io_handle_errors(void *dev_id) |
8116f3cf | 4467 | { |
d44570e4 | 4468 | struct net_device *dev = (struct net_device *)dev_id; |
4cf1653a | 4469 | struct s2io_nic *sp = netdev_priv(dev); |
8116f3cf | 4470 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d44570e4 | 4471 | u64 temp64 = 0, val64 = 0; |
8116f3cf SS |
4472 | int i = 0; |
4473 | ||
4474 | struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat; | |
4475 | struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat; | |
4476 | ||
92b84437 | 4477 | if (!is_s2io_card_up(sp)) |
8116f3cf SS |
4478 | return; |
4479 | ||
4480 | if (pci_channel_offline(sp->pdev)) | |
4481 | return; | |
4482 | ||
4483 | memset(&sw_stat->ring_full_cnt, 0, | |
d44570e4 | 4484 | sizeof(sw_stat->ring_full_cnt)); |
8116f3cf SS |
4485 | |
4486 | /* Handling the XPAK counters update */ | |
d44570e4 | 4487 | if (stats->xpak_timer_count < 72000) { |
8116f3cf SS |
4488 | /* waiting for an hour */ |
4489 | stats->xpak_timer_count++; | |
4490 | } else { | |
4491 | s2io_updt_xpak_counter(dev); | |
4492 | /* reset the count to zero */ | |
4493 | stats->xpak_timer_count = 0; | |
4494 | } | |
4495 | ||
4496 | /* Handling link status change error Intr */ | |
4497 | if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) { | |
4498 | val64 = readq(&bar0->mac_rmac_err_reg); | |
4499 | writeq(val64, &bar0->mac_rmac_err_reg); | |
4500 | if (val64 & RMAC_LINK_STATE_CHANGE_INT) | |
4501 | schedule_work(&sp->set_link_task); | |
4502 | } | |
4503 | ||
4504 | /* In case of a serious error, the device will be Reset. */ | |
4505 | if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source, | |
d44570e4 | 4506 | &sw_stat->serious_err_cnt)) |
8116f3cf SS |
4507 | goto reset; |
4508 | ||
4509 | /* Check for data parity error */ | |
4510 | if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg, | |
d44570e4 | 4511 | &sw_stat->parity_err_cnt)) |
8116f3cf SS |
4512 | goto reset; |
4513 | ||
4514 | /* Check for ring full counter */ | |
4515 | if (sp->device_type == XFRAME_II_DEVICE) { | |
4516 | val64 = readq(&bar0->ring_bump_counter1); | |
d44570e4 JP |
4517 | for (i = 0; i < 4; i++) { |
4518 | temp64 = (val64 & vBIT(0xFFFF, (i*16), 16)); | |
8116f3cf SS |
4519 | temp64 >>= 64 - ((i+1)*16); |
4520 | sw_stat->ring_full_cnt[i] += temp64; | |
4521 | } | |
4522 | ||
4523 | val64 = readq(&bar0->ring_bump_counter2); | |
d44570e4 JP |
4524 | for (i = 0; i < 4; i++) { |
4525 | temp64 = (val64 & vBIT(0xFFFF, (i*16), 16)); | |
8116f3cf | 4526 | temp64 >>= 64 - ((i+1)*16); |
d44570e4 | 4527 | sw_stat->ring_full_cnt[i+4] += temp64; |
8116f3cf SS |
4528 | } |
4529 | } | |
4530 | ||
4531 | val64 = readq(&bar0->txdma_int_status); | |
4532 | /*check for pfc_err*/ | |
4533 | if (val64 & TXDMA_PFC_INT) { | |
d44570e4 JP |
4534 | if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM | |
4535 | PFC_MISC_0_ERR | PFC_MISC_1_ERR | | |
4536 | PFC_PCIX_ERR, | |
4537 | &bar0->pfc_err_reg, | |
4538 | &sw_stat->pfc_err_cnt)) | |
8116f3cf | 4539 | goto reset; |
d44570e4 JP |
4540 | do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR, |
4541 | &bar0->pfc_err_reg, | |
4542 | &sw_stat->pfc_err_cnt); | |
8116f3cf SS |
4543 | } |
4544 | ||
4545 | /*check for tda_err*/ | |
4546 | if (val64 & TXDMA_TDA_INT) { | |
d44570e4 JP |
4547 | if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR | |
4548 | TDA_SM0_ERR_ALARM | | |
4549 | TDA_SM1_ERR_ALARM, | |
4550 | &bar0->tda_err_reg, | |
4551 | &sw_stat->tda_err_cnt)) | |
8116f3cf SS |
4552 | goto reset; |
4553 | do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR, | |
d44570e4 JP |
4554 | &bar0->tda_err_reg, |
4555 | &sw_stat->tda_err_cnt); | |
8116f3cf SS |
4556 | } |
4557 | /*check for pcc_err*/ | |
4558 | if (val64 & TXDMA_PCC_INT) { | |
d44570e4 JP |
4559 | if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | |
4560 | PCC_N_SERR | PCC_6_COF_OV_ERR | | |
4561 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | | |
4562 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR | | |
4563 | PCC_TXB_ECC_DB_ERR, | |
4564 | &bar0->pcc_err_reg, | |
4565 | &sw_stat->pcc_err_cnt)) | |
8116f3cf SS |
4566 | goto reset; |
4567 | do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR, | |
d44570e4 JP |
4568 | &bar0->pcc_err_reg, |
4569 | &sw_stat->pcc_err_cnt); | |
8116f3cf SS |
4570 | } |
4571 | ||
4572 | /*check for tti_err*/ | |
4573 | if (val64 & TXDMA_TTI_INT) { | |
d44570e4 JP |
4574 | if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM, |
4575 | &bar0->tti_err_reg, | |
4576 | &sw_stat->tti_err_cnt)) | |
8116f3cf SS |
4577 | goto reset; |
4578 | do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR, | |
d44570e4 JP |
4579 | &bar0->tti_err_reg, |
4580 | &sw_stat->tti_err_cnt); | |
8116f3cf SS |
4581 | } |
4582 | ||
4583 | /*check for lso_err*/ | |
4584 | if (val64 & TXDMA_LSO_INT) { | |
d44570e4 JP |
4585 | if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT | |
4586 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM, | |
4587 | &bar0->lso_err_reg, | |
4588 | &sw_stat->lso_err_cnt)) | |
8116f3cf SS |
4589 | goto reset; |
4590 | do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
d44570e4 JP |
4591 | &bar0->lso_err_reg, |
4592 | &sw_stat->lso_err_cnt); | |
8116f3cf SS |
4593 | } |
4594 | ||
4595 | /*check for tpa_err*/ | |
4596 | if (val64 & TXDMA_TPA_INT) { | |
d44570e4 JP |
4597 | if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM, |
4598 | &bar0->tpa_err_reg, | |
4599 | &sw_stat->tpa_err_cnt)) | |
8116f3cf | 4600 | goto reset; |
d44570e4 JP |
4601 | do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP, |
4602 | &bar0->tpa_err_reg, | |
4603 | &sw_stat->tpa_err_cnt); | |
8116f3cf SS |
4604 | } |
4605 | ||
4606 | /*check for sm_err*/ | |
4607 | if (val64 & TXDMA_SM_INT) { | |
d44570e4 JP |
4608 | if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM, |
4609 | &bar0->sm_err_reg, | |
4610 | &sw_stat->sm_err_cnt)) | |
8116f3cf SS |
4611 | goto reset; |
4612 | } | |
4613 | ||
4614 | val64 = readq(&bar0->mac_int_status); | |
4615 | if (val64 & MAC_INT_STATUS_TMAC_INT) { | |
4616 | if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR, | |
d44570e4 JP |
4617 | &bar0->mac_tmac_err_reg, |
4618 | &sw_stat->mac_tmac_err_cnt)) | |
8116f3cf | 4619 | goto reset; |
d44570e4 JP |
4620 | do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | |
4621 | TMAC_DESC_ECC_SG_ERR | | |
4622 | TMAC_DESC_ECC_DB_ERR, | |
4623 | &bar0->mac_tmac_err_reg, | |
4624 | &sw_stat->mac_tmac_err_cnt); | |
8116f3cf SS |
4625 | } |
4626 | ||
4627 | val64 = readq(&bar0->xgxs_int_status); | |
4628 | if (val64 & XGXS_INT_STATUS_TXGXS) { | |
4629 | if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR, | |
d44570e4 JP |
4630 | &bar0->xgxs_txgxs_err_reg, |
4631 | &sw_stat->xgxs_txgxs_err_cnt)) | |
8116f3cf SS |
4632 | goto reset; |
4633 | do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, | |
d44570e4 JP |
4634 | &bar0->xgxs_txgxs_err_reg, |
4635 | &sw_stat->xgxs_txgxs_err_cnt); | |
8116f3cf SS |
4636 | } |
4637 | ||
4638 | val64 = readq(&bar0->rxdma_int_status); | |
4639 | if (val64 & RXDMA_INT_RC_INT_M) { | |
d44570e4 JP |
4640 | if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR | |
4641 | RC_FTC_ECC_DB_ERR | | |
4642 | RC_PRCn_SM_ERR_ALARM | | |
4643 | RC_FTC_SM_ERR_ALARM, | |
4644 | &bar0->rc_err_reg, | |
4645 | &sw_stat->rc_err_cnt)) | |
8116f3cf | 4646 | goto reset; |
d44570e4 JP |
4647 | do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR | |
4648 | RC_FTC_ECC_SG_ERR | | |
4649 | RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg, | |
4650 | &sw_stat->rc_err_cnt); | |
4651 | if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn | | |
4652 | PRC_PCI_AB_WR_Rn | | |
4653 | PRC_PCI_AB_F_WR_Rn, | |
4654 | &bar0->prc_pcix_err_reg, | |
4655 | &sw_stat->prc_pcix_err_cnt)) | |
8116f3cf | 4656 | goto reset; |
d44570e4 JP |
4657 | do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn | |
4658 | PRC_PCI_DP_WR_Rn | | |
4659 | PRC_PCI_DP_F_WR_Rn, | |
4660 | &bar0->prc_pcix_err_reg, | |
4661 | &sw_stat->prc_pcix_err_cnt); | |
8116f3cf SS |
4662 | } |
4663 | ||
4664 | if (val64 & RXDMA_INT_RPA_INT_M) { | |
4665 | if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR, | |
d44570e4 JP |
4666 | &bar0->rpa_err_reg, |
4667 | &sw_stat->rpa_err_cnt)) | |
8116f3cf SS |
4668 | goto reset; |
4669 | do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, | |
d44570e4 JP |
4670 | &bar0->rpa_err_reg, |
4671 | &sw_stat->rpa_err_cnt); | |
8116f3cf SS |
4672 | } |
4673 | ||
4674 | if (val64 & RXDMA_INT_RDA_INT_M) { | |
d44570e4 JP |
4675 | if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR | |
4676 | RDA_FRM_ECC_DB_N_AERR | | |
4677 | RDA_SM1_ERR_ALARM | | |
4678 | RDA_SM0_ERR_ALARM | | |
4679 | RDA_RXD_ECC_DB_SERR, | |
4680 | &bar0->rda_err_reg, | |
4681 | &sw_stat->rda_err_cnt)) | |
8116f3cf | 4682 | goto reset; |
d44570e4 JP |
4683 | do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR | |
4684 | RDA_FRM_ECC_SG_ERR | | |
4685 | RDA_MISC_ERR | | |
4686 | RDA_PCIX_ERR, | |
4687 | &bar0->rda_err_reg, | |
4688 | &sw_stat->rda_err_cnt); | |
8116f3cf SS |
4689 | } |
4690 | ||
4691 | if (val64 & RXDMA_INT_RTI_INT_M) { | |
d44570e4 JP |
4692 | if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM, |
4693 | &bar0->rti_err_reg, | |
4694 | &sw_stat->rti_err_cnt)) | |
8116f3cf SS |
4695 | goto reset; |
4696 | do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, | |
d44570e4 JP |
4697 | &bar0->rti_err_reg, |
4698 | &sw_stat->rti_err_cnt); | |
8116f3cf SS |
4699 | } |
4700 | ||
4701 | val64 = readq(&bar0->mac_int_status); | |
4702 | if (val64 & MAC_INT_STATUS_RMAC_INT) { | |
4703 | if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR, | |
d44570e4 JP |
4704 | &bar0->mac_rmac_err_reg, |
4705 | &sw_stat->mac_rmac_err_cnt)) | |
8116f3cf | 4706 | goto reset; |
d44570e4 JP |
4707 | do_s2io_chk_alarm_bit(RMAC_UNUSED_INT | |
4708 | RMAC_SINGLE_ECC_ERR | | |
4709 | RMAC_DOUBLE_ECC_ERR, | |
4710 | &bar0->mac_rmac_err_reg, | |
4711 | &sw_stat->mac_rmac_err_cnt); | |
8116f3cf SS |
4712 | } |
4713 | ||
4714 | val64 = readq(&bar0->xgxs_int_status); | |
4715 | if (val64 & XGXS_INT_STATUS_RXGXS) { | |
4716 | if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, | |
d44570e4 JP |
4717 | &bar0->xgxs_rxgxs_err_reg, |
4718 | &sw_stat->xgxs_rxgxs_err_cnt)) | |
8116f3cf SS |
4719 | goto reset; |
4720 | } | |
4721 | ||
4722 | val64 = readq(&bar0->mc_int_status); | |
d44570e4 JP |
4723 | if (val64 & MC_INT_STATUS_MC_INT) { |
4724 | if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR, | |
4725 | &bar0->mc_err_reg, | |
4726 | &sw_stat->mc_err_cnt)) | |
8116f3cf SS |
4727 | goto reset; |
4728 | ||
4729 | /* Handling Ecc errors */ | |
4730 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
4731 | writeq(val64, &bar0->mc_err_reg); | |
4732 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
4733 | sw_stat->double_ecc_errs++; | |
4734 | if (sp->device_type != XFRAME_II_DEVICE) { | |
4735 | /* | |
4736 | * Reset XframeI only if critical error | |
4737 | */ | |
4738 | if (val64 & | |
d44570e4 JP |
4739 | (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | |
4740 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) | |
4741 | goto reset; | |
4742 | } | |
8116f3cf SS |
4743 | } else |
4744 | sw_stat->single_ecc_errs++; | |
4745 | } | |
4746 | } | |
4747 | return; | |
4748 | ||
4749 | reset: | |
3a3d5756 | 4750 | s2io_stop_all_tx_queue(sp); |
8116f3cf SS |
4751 | schedule_work(&sp->rst_timer_task); |
4752 | sw_stat->soft_reset_cnt++; | |
8116f3cf SS |
4753 | } |
4754 | ||
1da177e4 LT |
4755 | /** |
4756 | * s2io_isr - ISR handler of the device . | |
4757 | * @irq: the irq of the device. | |
4758 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 | 4759 | * Description: This function is the ISR handler of the device. It |
4760 | * identifies the reason for the interrupt and calls the relevant | |
4761 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4762 | * recv buffers, if their numbers are below the panic value which is |
4763 | * presently set to 25% of the original number of rcv buffers allocated. | |
4764 | * Return value: | |
20346722 | 4765 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4766 | * IRQ_NONE: will be returned if interrupt is not from our device |
4767 | */ | |
7d12e780 | 4768 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 | 4769 | { |
d44570e4 | 4770 | struct net_device *dev = (struct net_device *)dev_id; |
4cf1653a | 4771 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 4772 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
20346722 | 4773 | int i; |
19a60522 | 4774 | u64 reason = 0; |
1ee6dd77 | 4775 | struct mac_info *mac_control; |
1da177e4 LT |
4776 | struct config_param *config; |
4777 | ||
d796fdb7 LV |
4778 | /* Pretend we handled any irq's from a disconnected card */ |
4779 | if (pci_channel_offline(sp->pdev)) | |
4780 | return IRQ_NONE; | |
4781 | ||
596c5c97 | 4782 | if (!is_s2io_card_up(sp)) |
92b84437 | 4783 | return IRQ_NONE; |
92b84437 | 4784 | |
1da177e4 | 4785 | config = &sp->config; |
ffb5df6c | 4786 | mac_control = &sp->mac_control; |
1da177e4 | 4787 | |
20346722 | 4788 | /* |
1da177e4 LT |
4789 | * Identify the cause for interrupt and call the appropriate |
4790 | * interrupt handler. Causes for the interrupt could be; | |
4791 | * 1. Rx of packet. | |
4792 | * 2. Tx complete. | |
4793 | * 3. Link down. | |
1da177e4 LT |
4794 | */ |
4795 | reason = readq(&bar0->general_int_status); | |
4796 | ||
d44570e4 JP |
4797 | if (unlikely(reason == S2IO_MINUS_ONE)) |
4798 | return IRQ_HANDLED; /* Nothing much can be done. Get out */ | |
5d3213cc | 4799 | |
d44570e4 JP |
4800 | if (reason & |
4801 | (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) { | |
596c5c97 SS |
4802 | writeq(S2IO_MINUS_ONE, &bar0->general_int_mask); |
4803 | ||
4804 | if (config->napi) { | |
4805 | if (reason & GEN_INTR_RXTRAFFIC) { | |
288379f0 | 4806 | napi_schedule(&sp->napi); |
f61e0a35 SH |
4807 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask); |
4808 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
4809 | readl(&bar0->rx_traffic_int); | |
db874e65 | 4810 | } |
596c5c97 SS |
4811 | } else { |
4812 | /* | |
4813 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4814 | * will ensure that the actual interrupt causing bit | |
4815 | * get's cleared and hence a read can be avoided. | |
4816 | */ | |
4817 | if (reason & GEN_INTR_RXTRAFFIC) | |
19a60522 | 4818 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
596c5c97 | 4819 | |
13d866a9 JP |
4820 | for (i = 0; i < config->rx_ring_num; i++) { |
4821 | struct ring_info *ring = &mac_control->rings[i]; | |
4822 | ||
4823 | rx_intr_handler(ring, 0); | |
4824 | } | |
db874e65 | 4825 | } |
596c5c97 | 4826 | |
db874e65 | 4827 | /* |
596c5c97 | 4828 | * tx_traffic_int reg is an R1 register, writing all 1's |
db874e65 SS |
4829 | * will ensure that the actual interrupt causing bit get's |
4830 | * cleared and hence a read can be avoided. | |
4831 | */ | |
596c5c97 SS |
4832 | if (reason & GEN_INTR_TXTRAFFIC) |
4833 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
19a60522 | 4834 | |
596c5c97 SS |
4835 | for (i = 0; i < config->tx_fifo_num; i++) |
4836 | tx_intr_handler(&mac_control->fifos[i]); | |
1da177e4 | 4837 | |
596c5c97 SS |
4838 | if (reason & GEN_INTR_TXPIC) |
4839 | s2io_txpic_intr_handle(sp); | |
fe113638 | 4840 | |
596c5c97 SS |
4841 | /* |
4842 | * Reallocate the buffers from the interrupt handler itself. | |
4843 | */ | |
4844 | if (!config->napi) { | |
13d866a9 JP |
4845 | for (i = 0; i < config->rx_ring_num; i++) { |
4846 | struct ring_info *ring = &mac_control->rings[i]; | |
4847 | ||
4848 | s2io_chk_rx_buffers(sp, ring); | |
4849 | } | |
596c5c97 SS |
4850 | } |
4851 | writeq(sp->general_int_mask, &bar0->general_int_mask); | |
4852 | readl(&bar0->general_int_status); | |
20346722 | 4853 | |
596c5c97 | 4854 | return IRQ_HANDLED; |
db874e65 | 4855 | |
d44570e4 | 4856 | } else if (!reason) { |
596c5c97 SS |
4857 | /* The interrupt was not raised by us */ |
4858 | return IRQ_NONE; | |
4859 | } | |
db874e65 | 4860 | |
1da177e4 LT |
4861 | return IRQ_HANDLED; |
4862 | } | |
4863 | ||
7ba013ac | 4864 | /** |
4865 | * s2io_updt_stats - | |
4866 | */ | |
1ee6dd77 | 4867 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4868 | { |
1ee6dd77 | 4869 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac | 4870 | u64 val64; |
4871 | int cnt = 0; | |
4872 | ||
92b84437 | 4873 | if (is_s2io_card_up(sp)) { |
7ba013ac | 4874 | /* Apprx 30us on a 133 MHz bus */ |
4875 | val64 = SET_UPDT_CLICKS(10) | | |
4876 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4877 | writeq(val64, &bar0->stat_cfg); | |
4878 | do { | |
4879 | udelay(100); | |
4880 | val64 = readq(&bar0->stat_cfg); | |
b7b5a128 | 4881 | if (!(val64 & s2BIT(0))) |
7ba013ac | 4882 | break; |
4883 | cnt++; | |
4884 | if (cnt == 5) | |
4885 | break; /* Updt failed */ | |
d44570e4 | 4886 | } while (1); |
8a4bdbaa | 4887 | } |
7ba013ac | 4888 | } |
4889 | ||
1da177e4 | 4890 | /** |
20346722 | 4891 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4892 | * @dev : pointer to the device structure. |
4893 | * Description: | |
20346722 | 4894 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4895 | * structure and returns a pointer to the same. |
4896 | * Return value: | |
4897 | * pointer to the updated net_device_stats structure. | |
4898 | */ | |
ac1f60db | 4899 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4900 | { |
4cf1653a | 4901 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
4902 | struct mac_info *mac_control = &sp->mac_control; |
4903 | struct stat_block *stats = mac_control->stats_info; | |
4a490432 | 4904 | u64 delta; |
1da177e4 | 4905 | |
7ba013ac | 4906 | /* Configure Stats for immediate updt */ |
4907 | s2io_updt_stats(sp); | |
4908 | ||
4a490432 JM |
4909 | /* A device reset will cause the on-adapter statistics to be zero'ed. |
4910 | * This can be done while running by changing the MTU. To prevent the | |
4911 | * system from having the stats zero'ed, the driver keeps a copy of the | |
4912 | * last update to the system (which is also zero'ed on reset). This | |
4913 | * enables the driver to accurately know the delta between the last | |
4914 | * update and the current update. | |
4915 | */ | |
4916 | delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 | | |
4917 | le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets; | |
4918 | sp->stats.rx_packets += delta; | |
4919 | dev->stats.rx_packets += delta; | |
4920 | ||
4921 | delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 | | |
4922 | le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets; | |
4923 | sp->stats.tx_packets += delta; | |
4924 | dev->stats.tx_packets += delta; | |
4925 | ||
4926 | delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 | | |
4927 | le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes; | |
4928 | sp->stats.rx_bytes += delta; | |
4929 | dev->stats.rx_bytes += delta; | |
4930 | ||
4931 | delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 | | |
4932 | le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes; | |
4933 | sp->stats.tx_bytes += delta; | |
4934 | dev->stats.tx_bytes += delta; | |
4935 | ||
4936 | delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors; | |
4937 | sp->stats.rx_errors += delta; | |
4938 | dev->stats.rx_errors += delta; | |
4939 | ||
4940 | delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 | | |
4941 | le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors; | |
4942 | sp->stats.tx_errors += delta; | |
4943 | dev->stats.tx_errors += delta; | |
4944 | ||
4945 | delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped; | |
4946 | sp->stats.rx_dropped += delta; | |
4947 | dev->stats.rx_dropped += delta; | |
4948 | ||
4949 | delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped; | |
4950 | sp->stats.tx_dropped += delta; | |
4951 | dev->stats.tx_dropped += delta; | |
4952 | ||
4953 | /* The adapter MAC interprets pause frames as multicast packets, but | |
4954 | * does not pass them up. This erroneously increases the multicast | |
4955 | * packet count and needs to be deducted when the multicast frame count | |
4956 | * is queried. | |
4957 | */ | |
4958 | delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 | | |
4959 | le32_to_cpu(stats->rmac_vld_mcst_frms); | |
4960 | delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms); | |
4961 | delta -= sp->stats.multicast; | |
4962 | sp->stats.multicast += delta; | |
4963 | dev->stats.multicast += delta; | |
1da177e4 | 4964 | |
4a490432 JM |
4965 | delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 | |
4966 | le32_to_cpu(stats->rmac_usized_frms)) + | |
4967 | le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors; | |
4968 | sp->stats.rx_length_errors += delta; | |
4969 | dev->stats.rx_length_errors += delta; | |
13d866a9 | 4970 | |
4a490432 JM |
4971 | delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors; |
4972 | sp->stats.rx_crc_errors += delta; | |
4973 | dev->stats.rx_crc_errors += delta; | |
0425b46a | 4974 | |
d44570e4 | 4975 | return &dev->stats; |
1da177e4 LT |
4976 | } |
4977 | ||
4978 | /** | |
4979 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4980 | * @dev : pointer to the device structure | |
4981 | * Description: | |
20346722 | 4982 | * This function is a driver entry point which gets called by the kernel |
4983 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4984 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4985 | * determine, if multicast address must be enabled or if promiscuous mode | |
4986 | * is to be disabled etc. | |
4987 | * Return value: | |
4988 | * void. | |
4989 | */ | |
4990 | ||
4991 | static void s2io_set_multicast(struct net_device *dev) | |
4992 | { | |
4993 | int i, j, prev_cnt; | |
22bedad3 | 4994 | struct netdev_hw_addr *ha; |
4cf1653a | 4995 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 4996 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4997 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
d44570e4 | 4998 | 0xfeffffffffffULL; |
faa4f796 | 4999 | u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0; |
1da177e4 | 5000 | void __iomem *add; |
faa4f796 | 5001 | struct config_param *config = &sp->config; |
1da177e4 LT |
5002 | |
5003 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
5004 | /* Enable all Multicast addresses */ | |
5005 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
5006 | &bar0->rmac_addr_data0_mem); | |
5007 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
5008 | &bar0->rmac_addr_data1_mem); | |
5009 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
d44570e4 JP |
5010 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5011 | RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1); | |
1da177e4 LT |
5012 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5013 | /* Wait till command completes */ | |
c92ca04b | 5014 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5015 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5016 | S2IO_BIT_RESET); | |
1da177e4 LT |
5017 | |
5018 | sp->m_cast_flg = 1; | |
faa4f796 | 5019 | sp->all_multi_pos = config->max_mc_addr - 1; |
1da177e4 LT |
5020 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { |
5021 | /* Disable all Multicast addresses */ | |
5022 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
5023 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd | 5024 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
5025 | &bar0->rmac_addr_data1_mem); | |
1da177e4 | 5026 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
5027 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5028 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
1da177e4 LT |
5029 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5030 | /* Wait till command completes */ | |
c92ca04b | 5031 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5032 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5033 | S2IO_BIT_RESET); | |
1da177e4 LT |
5034 | |
5035 | sp->m_cast_flg = 0; | |
5036 | sp->all_multi_pos = 0; | |
5037 | } | |
5038 | ||
5039 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
5040 | /* Put the NIC into promiscuous mode */ | |
5041 | add = &bar0->mac_cfg; | |
5042 | val64 = readq(&bar0->mac_cfg); | |
5043 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
5044 | ||
5045 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 5046 | writel((u32)val64, add); |
1da177e4 LT |
5047 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
5048 | writel((u32) (val64 >> 32), (add + 4)); | |
5049 | ||
926930b2 SS |
5050 | if (vlan_tag_strip != 1) { |
5051 | val64 = readq(&bar0->rx_pa_cfg); | |
5052 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
5053 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 5054 | sp->vlan_strip_flag = 0; |
926930b2 SS |
5055 | } |
5056 | ||
1da177e4 LT |
5057 | val64 = readq(&bar0->mac_cfg); |
5058 | sp->promisc_flg = 1; | |
776bd20f | 5059 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
5060 | dev->name); |
5061 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
5062 | /* Remove the NIC from promiscuous mode */ | |
5063 | add = &bar0->mac_cfg; | |
5064 | val64 = readq(&bar0->mac_cfg); | |
5065 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
5066 | ||
5067 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 5068 | writel((u32)val64, add); |
1da177e4 LT |
5069 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
5070 | writel((u32) (val64 >> 32), (add + 4)); | |
5071 | ||
926930b2 SS |
5072 | if (vlan_tag_strip != 0) { |
5073 | val64 = readq(&bar0->rx_pa_cfg); | |
5074 | val64 |= RX_PA_CFG_STRIP_VLAN_TAG; | |
5075 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 5076 | sp->vlan_strip_flag = 1; |
926930b2 SS |
5077 | } |
5078 | ||
1da177e4 LT |
5079 | val64 = readq(&bar0->mac_cfg); |
5080 | sp->promisc_flg = 0; | |
9e39f7c5 | 5081 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name); |
1da177e4 LT |
5082 | } |
5083 | ||
5084 | /* Update individual M_CAST address list */ | |
4cd24eaf JP |
5085 | if ((!sp->m_cast_flg) && netdev_mc_count(dev)) { |
5086 | if (netdev_mc_count(dev) > | |
faa4f796 | 5087 | (config->max_mc_addr - config->max_mac_addr)) { |
9e39f7c5 JP |
5088 | DBG_PRINT(ERR_DBG, |
5089 | "%s: No more Rx filters can be added - " | |
5090 | "please enable ALL_MULTI instead\n", | |
1da177e4 | 5091 | dev->name); |
1da177e4 LT |
5092 | return; |
5093 | } | |
5094 | ||
5095 | prev_cnt = sp->mc_addr_count; | |
4cd24eaf | 5096 | sp->mc_addr_count = netdev_mc_count(dev); |
1da177e4 LT |
5097 | |
5098 | /* Clear out the previous list of Mc in the H/W. */ | |
5099 | for (i = 0; i < prev_cnt; i++) { | |
5100 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
5101 | &bar0->rmac_addr_data0_mem); | |
5102 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
d44570e4 | 5103 | &bar0->rmac_addr_data1_mem); |
1da177e4 | 5104 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
5105 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5106 | RMAC_ADDR_CMD_MEM_OFFSET | |
5107 | (config->mc_start_offset + i); | |
1da177e4 LT |
5108 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5109 | ||
5110 | /* Wait for command completes */ | |
c92ca04b | 5111 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5112 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5113 | S2IO_BIT_RESET)) { | |
9e39f7c5 JP |
5114 | DBG_PRINT(ERR_DBG, |
5115 | "%s: Adding Multicasts failed\n", | |
5116 | dev->name); | |
1da177e4 LT |
5117 | return; |
5118 | } | |
5119 | } | |
5120 | ||
5121 | /* Create the new Rx filter list and update the same in H/W. */ | |
5508590c | 5122 | i = 0; |
22bedad3 | 5123 | netdev_for_each_mc_addr(ha, dev) { |
a7a80d5a | 5124 | mac_addr = 0; |
1da177e4 | 5125 | for (j = 0; j < ETH_ALEN; j++) { |
22bedad3 | 5126 | mac_addr |= ha->addr[j]; |
1da177e4 LT |
5127 | mac_addr <<= 8; |
5128 | } | |
5129 | mac_addr >>= 8; | |
5130 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
5131 | &bar0->rmac_addr_data0_mem); | |
5132 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
d44570e4 | 5133 | &bar0->rmac_addr_data1_mem); |
1da177e4 | 5134 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
5135 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5136 | RMAC_ADDR_CMD_MEM_OFFSET | |
5137 | (i + config->mc_start_offset); | |
1da177e4 LT |
5138 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5139 | ||
5140 | /* Wait for command completes */ | |
c92ca04b | 5141 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5142 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5143 | S2IO_BIT_RESET)) { | |
9e39f7c5 JP |
5144 | DBG_PRINT(ERR_DBG, |
5145 | "%s: Adding Multicasts failed\n", | |
5146 | dev->name); | |
1da177e4 LT |
5147 | return; |
5148 | } | |
5508590c | 5149 | i++; |
1da177e4 LT |
5150 | } |
5151 | } | |
5152 | } | |
5153 | ||
faa4f796 SH |
5154 | /* read from CAM unicast & multicast addresses and store it in |
5155 | * def_mac_addr structure | |
5156 | */ | |
dac499f9 | 5157 | static void do_s2io_store_unicast_mc(struct s2io_nic *sp) |
faa4f796 SH |
5158 | { |
5159 | int offset; | |
5160 | u64 mac_addr = 0x0; | |
5161 | struct config_param *config = &sp->config; | |
5162 | ||
5163 | /* store unicast & multicast mac addresses */ | |
5164 | for (offset = 0; offset < config->max_mc_addr; offset++) { | |
5165 | mac_addr = do_s2io_read_unicast_mc(sp, offset); | |
5166 | /* if read fails disable the entry */ | |
5167 | if (mac_addr == FAILURE) | |
5168 | mac_addr = S2IO_DISABLE_MAC_ENTRY; | |
5169 | do_s2io_copy_mac_addr(sp, offset, mac_addr); | |
5170 | } | |
5171 | } | |
5172 | ||
5173 | /* restore unicast & multicast MAC to CAM from def_mac_addr structure */ | |
5174 | static void do_s2io_restore_unicast_mc(struct s2io_nic *sp) | |
5175 | { | |
5176 | int offset; | |
5177 | struct config_param *config = &sp->config; | |
5178 | /* restore unicast mac address */ | |
5179 | for (offset = 0; offset < config->max_mac_addr; offset++) | |
5180 | do_s2io_prog_unicast(sp->dev, | |
d44570e4 | 5181 | sp->def_mac_addr[offset].mac_addr); |
faa4f796 SH |
5182 | |
5183 | /* restore multicast mac address */ | |
5184 | for (offset = config->mc_start_offset; | |
d44570e4 | 5185 | offset < config->max_mc_addr; offset++) |
faa4f796 SH |
5186 | do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr); |
5187 | } | |
5188 | ||
5189 | /* add a multicast MAC address to CAM */ | |
5190 | static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr) | |
5191 | { | |
5192 | int i; | |
5193 | u64 mac_addr = 0; | |
5194 | struct config_param *config = &sp->config; | |
5195 | ||
5196 | for (i = 0; i < ETH_ALEN; i++) { | |
5197 | mac_addr <<= 8; | |
5198 | mac_addr |= addr[i]; | |
5199 | } | |
5200 | if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY)) | |
5201 | return SUCCESS; | |
5202 | ||
5203 | /* check if the multicast mac already preset in CAM */ | |
5204 | for (i = config->mc_start_offset; i < config->max_mc_addr; i++) { | |
5205 | u64 tmp64; | |
5206 | tmp64 = do_s2io_read_unicast_mc(sp, i); | |
5207 | if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */ | |
5208 | break; | |
5209 | ||
5210 | if (tmp64 == mac_addr) | |
5211 | return SUCCESS; | |
5212 | } | |
5213 | if (i == config->max_mc_addr) { | |
5214 | DBG_PRINT(ERR_DBG, | |
d44570e4 | 5215 | "CAM full no space left for multicast MAC\n"); |
faa4f796 SH |
5216 | return FAILURE; |
5217 | } | |
5218 | /* Update the internal structure with this new mac address */ | |
5219 | do_s2io_copy_mac_addr(sp, i, mac_addr); | |
5220 | ||
d44570e4 | 5221 | return do_s2io_add_mac(sp, mac_addr, i); |
faa4f796 SH |
5222 | } |
5223 | ||
5224 | /* add MAC address to CAM */ | |
5225 | static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off) | |
2fd37688 SS |
5226 | { |
5227 | u64 val64; | |
5228 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
5229 | ||
5230 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr), | |
d44570e4 | 5231 | &bar0->rmac_addr_data0_mem); |
2fd37688 | 5232 | |
d44570e4 | 5233 | val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
2fd37688 SS |
5234 | RMAC_ADDR_CMD_MEM_OFFSET(off); |
5235 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
5236 | ||
5237 | /* Wait till command completes */ | |
5238 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, | |
d44570e4 JP |
5239 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5240 | S2IO_BIT_RESET)) { | |
faa4f796 | 5241 | DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n"); |
2fd37688 SS |
5242 | return FAILURE; |
5243 | } | |
5244 | return SUCCESS; | |
5245 | } | |
faa4f796 SH |
5246 | /* deletes a specified unicast/multicast mac entry from CAM */ |
5247 | static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr) | |
5248 | { | |
5249 | int offset; | |
5250 | u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64; | |
5251 | struct config_param *config = &sp->config; | |
5252 | ||
5253 | for (offset = 1; | |
d44570e4 | 5254 | offset < config->max_mc_addr; offset++) { |
faa4f796 SH |
5255 | tmp64 = do_s2io_read_unicast_mc(sp, offset); |
5256 | if (tmp64 == addr) { | |
5257 | /* disable the entry by writing 0xffffffffffffULL */ | |
5258 | if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE) | |
5259 | return FAILURE; | |
5260 | /* store the new mac list from CAM */ | |
5261 | do_s2io_store_unicast_mc(sp); | |
5262 | return SUCCESS; | |
5263 | } | |
5264 | } | |
5265 | DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n", | |
d44570e4 | 5266 | (unsigned long long)addr); |
faa4f796 SH |
5267 | return FAILURE; |
5268 | } | |
5269 | ||
5270 | /* read mac entries from CAM */ | |
5271 | static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset) | |
5272 | { | |
5273 | u64 tmp64 = 0xffffffffffff0000ULL, val64; | |
5274 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
5275 | ||
5276 | /* read mac addr */ | |
d44570e4 | 5277 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
faa4f796 SH |
5278 | RMAC_ADDR_CMD_MEM_OFFSET(offset); |
5279 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
5280 | ||
5281 | /* Wait till command completes */ | |
5282 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, | |
d44570e4 JP |
5283 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5284 | S2IO_BIT_RESET)) { | |
faa4f796 SH |
5285 | DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n"); |
5286 | return FAILURE; | |
5287 | } | |
5288 | tmp64 = readq(&bar0->rmac_addr_data0_mem); | |
d44570e4 JP |
5289 | |
5290 | return tmp64 >> 16; | |
faa4f796 | 5291 | } |
2fd37688 SS |
5292 | |
5293 | /** | |
5294 | * s2io_set_mac_addr driver entry point | |
5295 | */ | |
faa4f796 | 5296 | |
2fd37688 SS |
5297 | static int s2io_set_mac_addr(struct net_device *dev, void *p) |
5298 | { | |
5299 | struct sockaddr *addr = p; | |
5300 | ||
5301 | if (!is_valid_ether_addr(addr->sa_data)) | |
5302 | return -EINVAL; | |
5303 | ||
5304 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
5305 | ||
5306 | /* store the MAC address in CAM */ | |
d44570e4 | 5307 | return do_s2io_prog_unicast(dev, dev->dev_addr); |
2fd37688 | 5308 | } |
1da177e4 | 5309 | /** |
2fd37688 | 5310 | * do_s2io_prog_unicast - Programs the Xframe mac address |
1da177e4 LT |
5311 | * @dev : pointer to the device structure. |
5312 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 5313 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 5314 | * frames with new Mac Address |
20346722 | 5315 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
5316 | * as defined in errno.h file on failure. |
5317 | */ | |
faa4f796 | 5318 | |
2fd37688 | 5319 | static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr) |
1da177e4 | 5320 | { |
4cf1653a | 5321 | struct s2io_nic *sp = netdev_priv(dev); |
2fd37688 | 5322 | register u64 mac_addr = 0, perm_addr = 0; |
1da177e4 | 5323 | int i; |
faa4f796 SH |
5324 | u64 tmp64; |
5325 | struct config_param *config = &sp->config; | |
1da177e4 | 5326 | |
20346722 | 5327 | /* |
d44570e4 JP |
5328 | * Set the new MAC address as the new unicast filter and reflect this |
5329 | * change on the device address registered with the OS. It will be | |
5330 | * at offset 0. | |
5331 | */ | |
1da177e4 LT |
5332 | for (i = 0; i < ETH_ALEN; i++) { |
5333 | mac_addr <<= 8; | |
5334 | mac_addr |= addr[i]; | |
2fd37688 SS |
5335 | perm_addr <<= 8; |
5336 | perm_addr |= sp->def_mac_addr[0].mac_addr[i]; | |
d8d70caf SS |
5337 | } |
5338 | ||
2fd37688 SS |
5339 | /* check if the dev_addr is different than perm_addr */ |
5340 | if (mac_addr == perm_addr) | |
d8d70caf SS |
5341 | return SUCCESS; |
5342 | ||
faa4f796 SH |
5343 | /* check if the mac already preset in CAM */ |
5344 | for (i = 1; i < config->max_mac_addr; i++) { | |
5345 | tmp64 = do_s2io_read_unicast_mc(sp, i); | |
5346 | if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */ | |
5347 | break; | |
5348 | ||
5349 | if (tmp64 == mac_addr) { | |
5350 | DBG_PRINT(INFO_DBG, | |
d44570e4 JP |
5351 | "MAC addr:0x%llx already present in CAM\n", |
5352 | (unsigned long long)mac_addr); | |
faa4f796 SH |
5353 | return SUCCESS; |
5354 | } | |
5355 | } | |
5356 | if (i == config->max_mac_addr) { | |
5357 | DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n"); | |
5358 | return FAILURE; | |
5359 | } | |
d8d70caf | 5360 | /* Update the internal structure with this new mac address */ |
faa4f796 | 5361 | do_s2io_copy_mac_addr(sp, i, mac_addr); |
d44570e4 JP |
5362 | |
5363 | return do_s2io_add_mac(sp, mac_addr, i); | |
1da177e4 LT |
5364 | } |
5365 | ||
5366 | /** | |
20346722 | 5367 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
5368 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
5369 | * @info: pointer to the structure with parameters given by ethtool to set | |
5370 | * link information. | |
5371 | * Description: | |
20346722 | 5372 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
5373 | * the NIC. |
5374 | * Return value: | |
5375 | * 0 on success. | |
d44570e4 | 5376 | */ |
1da177e4 LT |
5377 | |
5378 | static int s2io_ethtool_sset(struct net_device *dev, | |
5379 | struct ethtool_cmd *info) | |
5380 | { | |
4cf1653a | 5381 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 | 5382 | if ((info->autoneg == AUTONEG_ENABLE) || |
25db0338 | 5383 | (ethtool_cmd_speed(info) != SPEED_10000) || |
d44570e4 | 5384 | (info->duplex != DUPLEX_FULL)) |
1da177e4 LT |
5385 | return -EINVAL; |
5386 | else { | |
5387 | s2io_close(sp->dev); | |
5388 | s2io_open(sp->dev); | |
5389 | } | |
5390 | ||
5391 | return 0; | |
5392 | } | |
5393 | ||
5394 | /** | |
20346722 | 5395 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
5396 | * @sp : private member of the device structure, pointer to the |
5397 | * s2io_nic structure. | |
5398 | * @info : pointer to the structure with parameters given by ethtool | |
5399 | * to return link information. | |
5400 | * Description: | |
5401 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
5402 | * Return value : | |
5403 | * return 0 on success. | |
5404 | */ | |
5405 | ||
5406 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
5407 | { | |
4cf1653a | 5408 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5409 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
5410 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
5411 | info->port = PORT_FIBRE; | |
1a7eb72b SS |
5412 | |
5413 | /* info->transceiver */ | |
5414 | info->transceiver = XCVR_EXTERNAL; | |
1da177e4 LT |
5415 | |
5416 | if (netif_carrier_ok(sp->dev)) { | |
70739497 | 5417 | ethtool_cmd_speed_set(info, SPEED_10000); |
1da177e4 LT |
5418 | info->duplex = DUPLEX_FULL; |
5419 | } else { | |
70739497 | 5420 | ethtool_cmd_speed_set(info, -1); |
1da177e4 LT |
5421 | info->duplex = -1; |
5422 | } | |
5423 | ||
5424 | info->autoneg = AUTONEG_DISABLE; | |
5425 | return 0; | |
5426 | } | |
5427 | ||
5428 | /** | |
20346722 | 5429 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
5430 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5431 | * s2io_nic structure. |
5432 | * @info : pointer to the structure with parameters given by ethtool to | |
5433 | * return driver information. | |
5434 | * Description: | |
5435 | * Returns driver specefic information like name, version etc.. to ethtool. | |
5436 | * Return value: | |
5437 | * void | |
5438 | */ | |
5439 | ||
5440 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
5441 | struct ethtool_drvinfo *info) | |
5442 | { | |
4cf1653a | 5443 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 | 5444 | |
dbc2309d JL |
5445 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
5446 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
5447 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
5448 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
5449 | info->regdump_len = XENA_REG_SPACE; |
5450 | info->eedump_len = XENA_EEPROM_SPACE; | |
1da177e4 LT |
5451 | } |
5452 | ||
5453 | /** | |
5454 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 5455 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 5456 | * s2io_nic structure. |
20346722 | 5457 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
5458 | * dumping the registers. |
5459 | * @reg_space: The input argumnet into which all the registers are dumped. | |
5460 | * Description: | |
5461 | * Dumps the entire register space of xFrame NIC into the user given | |
5462 | * buffer area. | |
5463 | * Return value : | |
5464 | * void . | |
d44570e4 | 5465 | */ |
1da177e4 LT |
5466 | |
5467 | static void s2io_ethtool_gregs(struct net_device *dev, | |
5468 | struct ethtool_regs *regs, void *space) | |
5469 | { | |
5470 | int i; | |
5471 | u64 reg; | |
d44570e4 | 5472 | u8 *reg_space = (u8 *)space; |
4cf1653a | 5473 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5474 | |
5475 | regs->len = XENA_REG_SPACE; | |
5476 | regs->version = sp->pdev->subsystem_device; | |
5477 | ||
5478 | for (i = 0; i < regs->len; i += 8) { | |
5479 | reg = readq(sp->bar0 + i); | |
5480 | memcpy((reg_space + i), ®, 8); | |
5481 | } | |
5482 | } | |
5483 | ||
034e3450 | 5484 | /* |
5485 | * s2io_set_led - control NIC led | |
d44570e4 | 5486 | */ |
034e3450 | 5487 | static void s2io_set_led(struct s2io_nic *sp, bool on) |
1da177e4 | 5488 | { |
1ee6dd77 | 5489 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
034e3450 | 5490 | u16 subid = sp->pdev->subsystem_device; |
5491 | u64 val64; | |
1da177e4 | 5492 | |
541ae68f | 5493 | if ((sp->device_type == XFRAME_II_DEVICE) || |
d44570e4 | 5494 | ((subid & 0xFF) >= 0x07)) { |
1da177e4 | 5495 | val64 = readq(&bar0->gpio_control); |
034e3450 | 5496 | if (on) |
5497 | val64 |= GPIO_CTRL_GPIO_0; | |
5498 | else | |
5499 | val64 &= ~GPIO_CTRL_GPIO_0; | |
5500 | ||
1da177e4 LT |
5501 | writeq(val64, &bar0->gpio_control); |
5502 | } else { | |
5503 | val64 = readq(&bar0->adapter_control); | |
034e3450 | 5504 | if (on) |
5505 | val64 |= ADAPTER_LED_ON; | |
5506 | else | |
5507 | val64 &= ~ADAPTER_LED_ON; | |
5508 | ||
1da177e4 LT |
5509 | writeq(val64, &bar0->adapter_control); |
5510 | } | |
5511 | ||
1da177e4 LT |
5512 | } |
5513 | ||
5514 | /** | |
034e3450 | 5515 | * s2io_ethtool_set_led - To physically identify the nic on the system. |
5516 | * @dev : network device | |
5517 | * @state: led setting | |
5518 | * | |
1da177e4 | 5519 | * Description: Used to physically identify the NIC on the system. |
20346722 | 5520 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 5521 | * identification. |
20346722 | 5522 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 | 5523 | * identification is possible only if it's link is up. |
1da177e4 LT |
5524 | */ |
5525 | ||
034e3450 | 5526 | static int s2io_ethtool_set_led(struct net_device *dev, |
5527 | enum ethtool_phys_id_state state) | |
1da177e4 | 5528 | { |
4cf1653a | 5529 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5530 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
034e3450 | 5531 | u16 subid = sp->pdev->subsystem_device; |
1da177e4 | 5532 | |
d44570e4 | 5533 | if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) { |
034e3450 | 5534 | u64 val64 = readq(&bar0->adapter_control); |
1da177e4 | 5535 | if (!(val64 & ADAPTER_CNTL_EN)) { |
6cef2b8e | 5536 | pr_err("Adapter Link down, cannot blink LED\n"); |
034e3450 | 5537 | return -EAGAIN; |
1da177e4 LT |
5538 | } |
5539 | } | |
1da177e4 | 5540 | |
034e3450 | 5541 | switch (state) { |
5542 | case ETHTOOL_ID_ACTIVE: | |
5543 | sp->adapt_ctrl_org = readq(&bar0->gpio_control); | |
fce55922 | 5544 | return 1; /* cycle on/off once per second */ |
034e3450 | 5545 | |
5546 | case ETHTOOL_ID_ON: | |
5547 | s2io_set_led(sp, true); | |
5548 | break; | |
5549 | ||
5550 | case ETHTOOL_ID_OFF: | |
5551 | s2io_set_led(sp, false); | |
5552 | break; | |
5553 | ||
5554 | case ETHTOOL_ID_INACTIVE: | |
5555 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) | |
5556 | writeq(sp->adapt_ctrl_org, &bar0->gpio_control); | |
1da177e4 LT |
5557 | } |
5558 | ||
5559 | return 0; | |
5560 | } | |
5561 | ||
0cec35eb | 5562 | static void s2io_ethtool_gringparam(struct net_device *dev, |
d44570e4 | 5563 | struct ethtool_ringparam *ering) |
0cec35eb | 5564 | { |
4cf1653a | 5565 | struct s2io_nic *sp = netdev_priv(dev); |
d44570e4 | 5566 | int i, tx_desc_count = 0, rx_desc_count = 0; |
0cec35eb | 5567 | |
1853e2e1 | 5568 | if (sp->rxd_mode == RXD_MODE_1) { |
0cec35eb | 5569 | ering->rx_max_pending = MAX_RX_DESC_1; |
1853e2e1 JM |
5570 | ering->rx_jumbo_max_pending = MAX_RX_DESC_1; |
5571 | } else { | |
0cec35eb | 5572 | ering->rx_max_pending = MAX_RX_DESC_2; |
1853e2e1 JM |
5573 | ering->rx_jumbo_max_pending = MAX_RX_DESC_2; |
5574 | } | |
0cec35eb | 5575 | |
1853e2e1 | 5576 | ering->rx_mini_max_pending = 0; |
0cec35eb | 5577 | ering->tx_max_pending = MAX_TX_DESC; |
8a4bdbaa | 5578 | |
1853e2e1 | 5579 | for (i = 0; i < sp->config.rx_ring_num; i++) |
0cec35eb | 5580 | rx_desc_count += sp->config.rx_cfg[i].num_rxd; |
0cec35eb | 5581 | ering->rx_pending = rx_desc_count; |
0cec35eb | 5582 | ering->rx_jumbo_pending = rx_desc_count; |
1853e2e1 JM |
5583 | ering->rx_mini_pending = 0; |
5584 | ||
5585 | for (i = 0; i < sp->config.tx_fifo_num; i++) | |
5586 | tx_desc_count += sp->config.tx_cfg[i].fifo_len; | |
5587 | ering->tx_pending = tx_desc_count; | |
5588 | DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds); | |
0cec35eb SH |
5589 | } |
5590 | ||
1da177e4 LT |
5591 | /** |
5592 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 | 5593 | * @sp : private member of the device structure, which is a pointer to the |
5594 | * s2io_nic structure. | |
1da177e4 LT |
5595 | * @ep : pointer to the structure with pause parameters given by ethtool. |
5596 | * Description: | |
5597 | * Returns the Pause frame generation and reception capability of the NIC. | |
5598 | * Return value: | |
5599 | * void | |
5600 | */ | |
5601 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
5602 | struct ethtool_pauseparam *ep) | |
5603 | { | |
5604 | u64 val64; | |
4cf1653a | 5605 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5606 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5607 | |
5608 | val64 = readq(&bar0->rmac_pause_cfg); | |
5609 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
f957bcf0 | 5610 | ep->tx_pause = true; |
1da177e4 | 5611 | if (val64 & RMAC_PAUSE_RX_ENABLE) |
f957bcf0 TK |
5612 | ep->rx_pause = true; |
5613 | ep->autoneg = false; | |
1da177e4 LT |
5614 | } |
5615 | ||
5616 | /** | |
5617 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 5618 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5619 | * s2io_nic structure. |
5620 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
5621 | * Description: | |
5622 | * It can be used to set or reset Pause frame generation or reception | |
5623 | * support of the NIC. | |
5624 | * Return value: | |
5625 | * int, returns 0 on Success | |
5626 | */ | |
5627 | ||
5628 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
d44570e4 | 5629 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
5630 | { |
5631 | u64 val64; | |
4cf1653a | 5632 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5633 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5634 | |
5635 | val64 = readq(&bar0->rmac_pause_cfg); | |
5636 | if (ep->tx_pause) | |
5637 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
5638 | else | |
5639 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
5640 | if (ep->rx_pause) | |
5641 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
5642 | else | |
5643 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
5644 | writeq(val64, &bar0->rmac_pause_cfg); | |
5645 | return 0; | |
5646 | } | |
5647 | ||
5648 | /** | |
5649 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 5650 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5651 | * s2io_nic structure. |
5652 | * @off : offset at which the data must be written | |
5653 | * @data : Its an output parameter where the data read at the given | |
20346722 | 5654 | * offset is stored. |
1da177e4 | 5655 | * Description: |
20346722 | 5656 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
5657 | * read data. |
5658 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
5659 | * I2C bus. | |
5660 | * Return value: | |
5661 | * -1 on failure and 0 on success. | |
5662 | */ | |
5663 | ||
5664 | #define S2IO_DEV_ID 5 | |
d44570e4 | 5665 | static int read_eeprom(struct s2io_nic *sp, int off, u64 *data) |
1da177e4 LT |
5666 | { |
5667 | int ret = -1; | |
5668 | u32 exit_cnt = 0; | |
5669 | u64 val64; | |
1ee6dd77 | 5670 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5671 | |
ad4ebed0 | 5672 | if (sp->device_type == XFRAME_I_DEVICE) { |
d44570e4 JP |
5673 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | |
5674 | I2C_CONTROL_ADDR(off) | | |
5675 | I2C_CONTROL_BYTE_CNT(0x3) | | |
5676 | I2C_CONTROL_READ | | |
5677 | I2C_CONTROL_CNTL_START; | |
ad4ebed0 | 5678 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); |
1da177e4 | 5679 | |
ad4ebed0 | 5680 | while (exit_cnt < 5) { |
5681 | val64 = readq(&bar0->i2c_control); | |
5682 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5683 | *data = I2C_CONTROL_GET_DATA(val64); | |
5684 | ret = 0; | |
5685 | break; | |
5686 | } | |
5687 | msleep(50); | |
5688 | exit_cnt++; | |
1da177e4 | 5689 | } |
1da177e4 LT |
5690 | } |
5691 | ||
ad4ebed0 | 5692 | if (sp->device_type == XFRAME_II_DEVICE) { |
5693 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5694 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 5695 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
5696 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5697 | val64 |= SPI_CONTROL_REQ; | |
5698 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5699 | while (exit_cnt < 5) { | |
5700 | val64 = readq(&bar0->spi_control); | |
5701 | if (val64 & SPI_CONTROL_NACK) { | |
5702 | ret = 1; | |
5703 | break; | |
5704 | } else if (val64 & SPI_CONTROL_DONE) { | |
5705 | *data = readq(&bar0->spi_data); | |
5706 | *data &= 0xffffff; | |
5707 | ret = 0; | |
5708 | break; | |
5709 | } | |
5710 | msleep(50); | |
5711 | exit_cnt++; | |
5712 | } | |
5713 | } | |
1da177e4 LT |
5714 | return ret; |
5715 | } | |
5716 | ||
5717 | /** | |
5718 | * write_eeprom - actually writes the relevant part of the data value. | |
5719 | * @sp : private member of the device structure, which is a pointer to the | |
5720 | * s2io_nic structure. | |
5721 | * @off : offset at which the data must be written | |
5722 | * @data : The data that is to be written | |
20346722 | 5723 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
5724 | * the Eeprom. (max of 3) |
5725 | * Description: | |
5726 | * Actually writes the relevant part of the data value into the Eeprom | |
5727 | * through the I2C bus. | |
5728 | * Return value: | |
5729 | * 0 on success, -1 on failure. | |
5730 | */ | |
5731 | ||
d44570e4 | 5732 | static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt) |
1da177e4 LT |
5733 | { |
5734 | int exit_cnt = 0, ret = -1; | |
5735 | u64 val64; | |
1ee6dd77 | 5736 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5737 | |
ad4ebed0 | 5738 | if (sp->device_type == XFRAME_I_DEVICE) { |
d44570e4 JP |
5739 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | |
5740 | I2C_CONTROL_ADDR(off) | | |
5741 | I2C_CONTROL_BYTE_CNT(cnt) | | |
5742 | I2C_CONTROL_SET_DATA((u32)data) | | |
5743 | I2C_CONTROL_CNTL_START; | |
ad4ebed0 | 5744 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); |
5745 | ||
5746 | while (exit_cnt < 5) { | |
5747 | val64 = readq(&bar0->i2c_control); | |
5748 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5749 | if (!(val64 & I2C_CONTROL_NACK)) | |
5750 | ret = 0; | |
5751 | break; | |
5752 | } | |
5753 | msleep(50); | |
5754 | exit_cnt++; | |
5755 | } | |
5756 | } | |
1da177e4 | 5757 | |
ad4ebed0 | 5758 | if (sp->device_type == XFRAME_II_DEVICE) { |
5759 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
d44570e4 | 5760 | writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data); |
ad4ebed0 | 5761 | |
5762 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5763 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 5764 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
5765 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5766 | val64 |= SPI_CONTROL_REQ; | |
5767 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5768 | while (exit_cnt < 5) { | |
5769 | val64 = readq(&bar0->spi_control); | |
5770 | if (val64 & SPI_CONTROL_NACK) { | |
5771 | ret = 1; | |
5772 | break; | |
5773 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 5774 | ret = 0; |
ad4ebed0 | 5775 | break; |
5776 | } | |
5777 | msleep(50); | |
5778 | exit_cnt++; | |
1da177e4 | 5779 | } |
1da177e4 | 5780 | } |
1da177e4 LT |
5781 | return ret; |
5782 | } | |
1ee6dd77 | 5783 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 5784 | { |
b41477f3 AR |
5785 | u8 *vpd_data; |
5786 | u8 data; | |
9c179780 | 5787 | int i = 0, cnt, len, fail = 0; |
9dc737a7 | 5788 | int vpd_addr = 0x80; |
ffb5df6c | 5789 | struct swStat *swstats = &nic->mac_control.stats_info->sw_stat; |
9dc737a7 AR |
5790 | |
5791 | if (nic->device_type == XFRAME_II_DEVICE) { | |
5792 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
5793 | vpd_addr = 0x80; | |
d44570e4 | 5794 | } else { |
9dc737a7 AR |
5795 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); |
5796 | vpd_addr = 0x50; | |
5797 | } | |
19a60522 | 5798 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 5799 | |
b41477f3 | 5800 | vpd_data = kmalloc(256, GFP_KERNEL); |
c53d4945 | 5801 | if (!vpd_data) { |
ffb5df6c | 5802 | swstats->mem_alloc_fail_cnt++; |
b41477f3 | 5803 | return; |
c53d4945 | 5804 | } |
ffb5df6c | 5805 | swstats->mem_allocated += 256; |
b41477f3 | 5806 | |
d44570e4 | 5807 | for (i = 0; i < 256; i += 4) { |
9dc737a7 AR |
5808 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); |
5809 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
5810 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
d44570e4 | 5811 | for (cnt = 0; cnt < 5; cnt++) { |
9dc737a7 AR |
5812 | msleep(2); |
5813 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
5814 | if (data == 0x80) | |
5815 | break; | |
5816 | } | |
5817 | if (cnt >= 5) { | |
5818 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
5819 | fail = 1; | |
5820 | break; | |
5821 | } | |
5822 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
5823 | (u32 *)&vpd_data[i]); | |
5824 | } | |
19a60522 | 5825 | |
d44570e4 | 5826 | if (!fail) { |
19a60522 | 5827 | /* read serial number of adapter */ |
9c179780 | 5828 | for (cnt = 0; cnt < 252; cnt++) { |
d44570e4 | 5829 | if ((vpd_data[cnt] == 'S') && |
9c179780 KV |
5830 | (vpd_data[cnt+1] == 'N')) { |
5831 | len = vpd_data[cnt+2]; | |
5832 | if (len < min(VPD_STRING_LEN, 256-cnt-2)) { | |
5833 | memcpy(nic->serial_num, | |
5834 | &vpd_data[cnt + 3], | |
5835 | len); | |
5836 | memset(nic->serial_num+len, | |
5837 | 0, | |
5838 | VPD_STRING_LEN-len); | |
5839 | break; | |
5840 | } | |
19a60522 SS |
5841 | } |
5842 | } | |
5843 | } | |
5844 | ||
9c179780 KV |
5845 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { |
5846 | len = vpd_data[1]; | |
5847 | memcpy(nic->product_name, &vpd_data[3], len); | |
5848 | nic->product_name[len] = 0; | |
5849 | } | |
b41477f3 | 5850 | kfree(vpd_data); |
ffb5df6c | 5851 | swstats->mem_freed += 256; |
9dc737a7 AR |
5852 | } |
5853 | ||
1da177e4 LT |
5854 | /** |
5855 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
5856 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 5857 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5858 | * containing all relevant information. |
5859 | * @data_buf : user defined value to be written into Eeprom. | |
5860 | * Description: Reads the values stored in the Eeprom at given offset | |
5861 | * for a given length. Stores these values int the input argument data | |
5862 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
5863 | * Return value: | |
5864 | * int 0 on success | |
5865 | */ | |
5866 | ||
5867 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
d44570e4 | 5868 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 5869 | { |
ad4ebed0 | 5870 | u32 i, valid; |
5871 | u64 data; | |
4cf1653a | 5872 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5873 | |
5874 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
5875 | ||
5876 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
5877 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
5878 | ||
5879 | for (i = 0; i < eeprom->len; i += 4) { | |
5880 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
5881 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
5882 | return -EFAULT; | |
5883 | } | |
5884 | valid = INV(data); | |
5885 | memcpy((data_buf + i), &valid, 4); | |
5886 | } | |
5887 | return 0; | |
5888 | } | |
5889 | ||
5890 | /** | |
5891 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
5892 | * @sp : private member of the device structure, which is a pointer to the | |
5893 | * s2io_nic structure. | |
20346722 | 5894 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5895 | * containing all relevant information. |
5896 | * @data_buf ; user defined value to be written into Eeprom. | |
5897 | * Description: | |
5898 | * Tries to write the user provided value in the Eeprom, at the offset | |
5899 | * given by the user. | |
5900 | * Return value: | |
5901 | * 0 on success, -EFAULT on failure. | |
5902 | */ | |
5903 | ||
5904 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5905 | struct ethtool_eeprom *eeprom, | |
d44570e4 | 5906 | u8 *data_buf) |
1da177e4 LT |
5907 | { |
5908 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5909 | u64 valid = 0, data; |
4cf1653a | 5910 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5911 | |
5912 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5913 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
5914 | "ETHTOOL_WRITE_EEPROM Err: " |
5915 | "Magic value is wrong, it is 0x%x should be 0x%x\n", | |
5916 | (sp->pdev->vendor | (sp->pdev->device << 16)), | |
5917 | eeprom->magic); | |
1da177e4 LT |
5918 | return -EFAULT; |
5919 | } | |
5920 | ||
5921 | while (len) { | |
d44570e4 JP |
5922 | data = (u32)data_buf[cnt] & 0x000000FF; |
5923 | if (data) | |
5924 | valid = (u32)(data << 24); | |
5925 | else | |
1da177e4 LT |
5926 | valid = data; |
5927 | ||
5928 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5929 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
5930 | "ETHTOOL_WRITE_EEPROM Err: " |
5931 | "Cannot write into the specified offset\n"); | |
1da177e4 LT |
5932 | return -EFAULT; |
5933 | } | |
5934 | cnt++; | |
5935 | len--; | |
5936 | } | |
5937 | ||
5938 | return 0; | |
5939 | } | |
5940 | ||
5941 | /** | |
20346722 | 5942 | * s2io_register_test - reads and writes into all clock domains. |
5943 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5944 | * s2io_nic structure. |
5945 | * @data : variable that returns the result of each of the test conducted b | |
5946 | * by the driver. | |
5947 | * Description: | |
5948 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5949 | * see that registers in all the three regions are accessible. | |
5950 | * Return value: | |
5951 | * 0 on success. | |
5952 | */ | |
5953 | ||
d44570e4 | 5954 | static int s2io_register_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 5955 | { |
1ee6dd77 | 5956 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5957 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5958 | int fail = 0; |
5959 | ||
20346722 | 5960 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5961 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 | 5962 | fail = 1; |
9e39f7c5 | 5963 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1); |
1da177e4 LT |
5964 | } |
5965 | ||
5966 | val64 = readq(&bar0->rmac_pause_cfg); | |
5967 | if (val64 != 0xc000ffff00000000ULL) { | |
5968 | fail = 1; | |
9e39f7c5 | 5969 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2); |
1da177e4 LT |
5970 | } |
5971 | ||
5972 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5973 | if (sp->device_type == XFRAME_II_DEVICE) |
5974 | exp_val = 0x0404040404040404ULL; | |
5975 | else | |
5976 | exp_val = 0x0808080808080808ULL; | |
5977 | if (val64 != exp_val) { | |
1da177e4 | 5978 | fail = 1; |
9e39f7c5 | 5979 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3); |
1da177e4 LT |
5980 | } |
5981 | ||
5982 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5983 | if (val64 != 0x000000001923141EULL) { | |
5984 | fail = 1; | |
9e39f7c5 | 5985 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4); |
1da177e4 LT |
5986 | } |
5987 | ||
5988 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5989 | writeq(val64, &bar0->xmsi_data); | |
5990 | val64 = readq(&bar0->xmsi_data); | |
5991 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5992 | fail = 1; | |
9e39f7c5 | 5993 | DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1); |
1da177e4 LT |
5994 | } |
5995 | ||
5996 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5997 | writeq(val64, &bar0->xmsi_data); | |
5998 | val64 = readq(&bar0->xmsi_data); | |
5999 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
6000 | fail = 1; | |
9e39f7c5 | 6001 | DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2); |
1da177e4 LT |
6002 | } |
6003 | ||
6004 | *data = fail; | |
ad4ebed0 | 6005 | return fail; |
1da177e4 LT |
6006 | } |
6007 | ||
6008 | /** | |
20346722 | 6009 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
6010 | * @sp : private member of the device structure, which is a pointer to the |
6011 | * s2io_nic structure. | |
6012 | * @data:variable that returns the result of each of the test conducted by | |
6013 | * the driver. | |
6014 | * Description: | |
20346722 | 6015 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
6016 | * register. |
6017 | * Return value: | |
6018 | * 0 on success. | |
6019 | */ | |
6020 | ||
d44570e4 | 6021 | static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 LT |
6022 | { |
6023 | int fail = 0; | |
ad4ebed0 | 6024 | u64 ret_data, org_4F0, org_7F0; |
6025 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
6026 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
6027 | |
6028 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 6029 | /* Note that SPI interface allows write access to all areas |
6030 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
6031 | */ | |
6032 | if (sp->device_type == XFRAME_I_DEVICE) | |
6033 | if (!write_eeprom(sp, 0, 0, 3)) | |
6034 | fail = 1; | |
6035 | ||
6036 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
6037 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
6038 | saved_4F0 = 1; | |
6039 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
6040 | saved_7F0 = 1; | |
1da177e4 LT |
6041 | |
6042 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 6043 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
6044 | fail = 1; |
6045 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
6046 | fail = 1; | |
6047 | ||
ad4ebed0 | 6048 | if (ret_data != 0x012345) { |
26b7625c | 6049 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
d44570e4 JP |
6050 | "Data written %llx Data read %llx\n", |
6051 | dev->name, (unsigned long long)0x12345, | |
6052 | (unsigned long long)ret_data); | |
1da177e4 | 6053 | fail = 1; |
ad4ebed0 | 6054 | } |
1da177e4 LT |
6055 | |
6056 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 6057 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
6058 | |
6059 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 6060 | if (sp->device_type == XFRAME_I_DEVICE) |
6061 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
6062 | fail = 1; | |
1da177e4 | 6063 | |
ad4ebed0 | 6064 | /* Test Write Request at offset 0x7f0 */ |
6065 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 6066 | fail = 1; |
ad4ebed0 | 6067 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
6068 | fail = 1; |
6069 | ||
ad4ebed0 | 6070 | if (ret_data != 0x012345) { |
26b7625c | 6071 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
d44570e4 JP |
6072 | "Data written %llx Data read %llx\n", |
6073 | dev->name, (unsigned long long)0x12345, | |
6074 | (unsigned long long)ret_data); | |
1da177e4 | 6075 | fail = 1; |
ad4ebed0 | 6076 | } |
1da177e4 LT |
6077 | |
6078 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 6079 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 6080 | |
ad4ebed0 | 6081 | if (sp->device_type == XFRAME_I_DEVICE) { |
6082 | /* Test Write Error at offset 0x80 */ | |
6083 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
6084 | fail = 1; | |
1da177e4 | 6085 | |
ad4ebed0 | 6086 | /* Test Write Error at offset 0xfc */ |
6087 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
6088 | fail = 1; | |
1da177e4 | 6089 | |
ad4ebed0 | 6090 | /* Test Write Error at offset 0x100 */ |
6091 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
6092 | fail = 1; | |
1da177e4 | 6093 | |
ad4ebed0 | 6094 | /* Test Write Error at offset 4ec */ |
6095 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
6096 | fail = 1; | |
6097 | } | |
6098 | ||
6099 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
6100 | if (saved_4F0) | |
6101 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
6102 | if (saved_7F0) | |
6103 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
6104 | |
6105 | *data = fail; | |
ad4ebed0 | 6106 | return fail; |
1da177e4 LT |
6107 | } |
6108 | ||
6109 | /** | |
6110 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 6111 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 6112 | * s2io_nic structure. |
20346722 | 6113 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
6114 | * the driver. |
6115 | * Description: | |
6116 | * This invokes the MemBist test of the card. We give around | |
6117 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 6118 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
6119 | * Return value: |
6120 | * 0 on success and -1 on failure. | |
6121 | */ | |
6122 | ||
d44570e4 | 6123 | static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 LT |
6124 | { |
6125 | u8 bist = 0; | |
6126 | int cnt = 0, ret = -1; | |
6127 | ||
6128 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
6129 | bist |= PCI_BIST_START; | |
6130 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
6131 | ||
6132 | while (cnt < 20) { | |
6133 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
6134 | if (!(bist & PCI_BIST_START)) { | |
6135 | *data = (bist & PCI_BIST_CODE_MASK); | |
6136 | ret = 0; | |
6137 | break; | |
6138 | } | |
6139 | msleep(100); | |
6140 | cnt++; | |
6141 | } | |
6142 | ||
6143 | return ret; | |
6144 | } | |
6145 | ||
6146 | /** | |
20346722 | 6147 | * s2io-link_test - verifies the link state of the nic |
6148 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
6149 | * s2io_nic structure. |
6150 | * @data: variable that returns the result of each of the test conducted by | |
6151 | * the driver. | |
6152 | * Description: | |
20346722 | 6153 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
6154 | * argument 'data' appropriately. |
6155 | * Return value: | |
6156 | * 0 on success. | |
6157 | */ | |
6158 | ||
d44570e4 | 6159 | static int s2io_link_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 6160 | { |
1ee6dd77 | 6161 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
6162 | u64 val64; |
6163 | ||
6164 | val64 = readq(&bar0->adapter_status); | |
d44570e4 | 6165 | if (!(LINK_IS_UP(val64))) |
1da177e4 | 6166 | *data = 1; |
c92ca04b AR |
6167 | else |
6168 | *data = 0; | |
1da177e4 | 6169 | |
b41477f3 | 6170 | return *data; |
1da177e4 LT |
6171 | } |
6172 | ||
6173 | /** | |
20346722 | 6174 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
6175 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 6176 | * s2io_nic structure. |
20346722 | 6177 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
6178 | * conducted by the driver. |
6179 | * Description: | |
20346722 | 6180 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
6181 | * access to the RldRam chip on the NIC. |
6182 | * Return value: | |
6183 | * 0 on success. | |
6184 | */ | |
6185 | ||
d44570e4 | 6186 | static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 6187 | { |
1ee6dd77 | 6188 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 6189 | u64 val64; |
ad4ebed0 | 6190 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
6191 | |
6192 | val64 = readq(&bar0->adapter_control); | |
6193 | val64 &= ~ADAPTER_ECC_EN; | |
6194 | writeq(val64, &bar0->adapter_control); | |
6195 | ||
6196 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6197 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 6198 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
6199 | |
6200 | val64 = readq(&bar0->mc_rldram_mrs); | |
6201 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
6202 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
6203 | ||
6204 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
6205 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
6206 | ||
6207 | while (iteration < 2) { | |
6208 | val64 = 0x55555555aaaa0000ULL; | |
d44570e4 | 6209 | if (iteration == 1) |
1da177e4 | 6210 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6211 | writeq(val64, &bar0->mc_rldram_test_d0); |
6212 | ||
6213 | val64 = 0xaaaa5a5555550000ULL; | |
d44570e4 | 6214 | if (iteration == 1) |
1da177e4 | 6215 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6216 | writeq(val64, &bar0->mc_rldram_test_d1); |
6217 | ||
6218 | val64 = 0x55aaaaaaaa5a0000ULL; | |
d44570e4 | 6219 | if (iteration == 1) |
1da177e4 | 6220 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6221 | writeq(val64, &bar0->mc_rldram_test_d2); |
6222 | ||
ad4ebed0 | 6223 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
6224 | writeq(val64, &bar0->mc_rldram_test_add); |
6225 | ||
d44570e4 JP |
6226 | val64 = MC_RLDRAM_TEST_MODE | |
6227 | MC_RLDRAM_TEST_WRITE | | |
6228 | MC_RLDRAM_TEST_GO; | |
ad4ebed0 | 6229 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
6230 | |
6231 | for (cnt = 0; cnt < 5; cnt++) { | |
6232 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6233 | if (val64 & MC_RLDRAM_TEST_DONE) | |
6234 | break; | |
6235 | msleep(200); | |
6236 | } | |
6237 | ||
6238 | if (cnt == 5) | |
6239 | break; | |
6240 | ||
ad4ebed0 | 6241 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
6242 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
6243 | |
6244 | for (cnt = 0; cnt < 5; cnt++) { | |
6245 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6246 | if (val64 & MC_RLDRAM_TEST_DONE) | |
6247 | break; | |
6248 | msleep(500); | |
6249 | } | |
6250 | ||
6251 | if (cnt == 5) | |
6252 | break; | |
6253 | ||
6254 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 6255 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
6256 | test_fail = 1; | |
1da177e4 LT |
6257 | |
6258 | iteration++; | |
6259 | } | |
6260 | ||
ad4ebed0 | 6261 | *data = test_fail; |
1da177e4 | 6262 | |
ad4ebed0 | 6263 | /* Bring the adapter out of test mode */ |
6264 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
6265 | ||
6266 | return test_fail; | |
1da177e4 LT |
6267 | } |
6268 | ||
6269 | /** | |
6270 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
6271 | * @sp : private member of the device structure, which is a pointer to the | |
6272 | * s2io_nic structure. | |
6273 | * @ethtest : pointer to a ethtool command specific structure that will be | |
6274 | * returned to the user. | |
20346722 | 6275 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
6276 | * conducted by the driver. |
6277 | * Description: | |
6278 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
6279 | * the health of the card. | |
6280 | * Return value: | |
6281 | * void | |
6282 | */ | |
6283 | ||
6284 | static void s2io_ethtool_test(struct net_device *dev, | |
6285 | struct ethtool_test *ethtest, | |
d44570e4 | 6286 | uint64_t *data) |
1da177e4 | 6287 | { |
4cf1653a | 6288 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
6289 | int orig_state = netif_running(sp->dev); |
6290 | ||
6291 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
6292 | /* Offline Tests. */ | |
20346722 | 6293 | if (orig_state) |
1da177e4 | 6294 | s2io_close(sp->dev); |
1da177e4 LT |
6295 | |
6296 | if (s2io_register_test(sp, &data[0])) | |
6297 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6298 | ||
6299 | s2io_reset(sp); | |
1da177e4 LT |
6300 | |
6301 | if (s2io_rldram_test(sp, &data[3])) | |
6302 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6303 | ||
6304 | s2io_reset(sp); | |
1da177e4 LT |
6305 | |
6306 | if (s2io_eeprom_test(sp, &data[1])) | |
6307 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6308 | ||
6309 | if (s2io_bist_test(sp, &data[4])) | |
6310 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6311 | ||
6312 | if (orig_state) | |
6313 | s2io_open(sp->dev); | |
6314 | ||
6315 | data[2] = 0; | |
6316 | } else { | |
6317 | /* Online Tests. */ | |
6318 | if (!orig_state) { | |
d44570e4 | 6319 | DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n", |
1da177e4 LT |
6320 | dev->name); |
6321 | data[0] = -1; | |
6322 | data[1] = -1; | |
6323 | data[2] = -1; | |
6324 | data[3] = -1; | |
6325 | data[4] = -1; | |
6326 | } | |
6327 | ||
6328 | if (s2io_link_test(sp, &data[2])) | |
6329 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6330 | ||
6331 | data[0] = 0; | |
6332 | data[1] = 0; | |
6333 | data[3] = 0; | |
6334 | data[4] = 0; | |
6335 | } | |
6336 | } | |
6337 | ||
6338 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
6339 | struct ethtool_stats *estats, | |
d44570e4 | 6340 | u64 *tmp_stats) |
1da177e4 | 6341 | { |
8116f3cf | 6342 | int i = 0, k; |
4cf1653a | 6343 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
6344 | struct stat_block *stats = sp->mac_control.stats_info; |
6345 | struct swStat *swstats = &stats->sw_stat; | |
6346 | struct xpakStat *xstats = &stats->xpak_stat; | |
1da177e4 | 6347 | |
7ba013ac | 6348 | s2io_updt_stats(sp); |
541ae68f | 6349 | tmp_stats[i++] = |
ffb5df6c JP |
6350 | (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 | |
6351 | le32_to_cpu(stats->tmac_frms); | |
541ae68f | 6352 | tmp_stats[i++] = |
ffb5df6c JP |
6353 | (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 | |
6354 | le32_to_cpu(stats->tmac_data_octets); | |
6355 | tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms); | |
541ae68f | 6356 | tmp_stats[i++] = |
ffb5df6c JP |
6357 | (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 | |
6358 | le32_to_cpu(stats->tmac_mcst_frms); | |
541ae68f | 6359 | tmp_stats[i++] = |
ffb5df6c JP |
6360 | (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 | |
6361 | le32_to_cpu(stats->tmac_bcst_frms); | |
6362 | tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms); | |
bd1034f0 | 6363 | tmp_stats[i++] = |
ffb5df6c JP |
6364 | (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 | |
6365 | le32_to_cpu(stats->tmac_ttl_octets); | |
bd1034f0 | 6366 | tmp_stats[i++] = |
ffb5df6c JP |
6367 | (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 | |
6368 | le32_to_cpu(stats->tmac_ucst_frms); | |
d44570e4 | 6369 | tmp_stats[i++] = |
ffb5df6c JP |
6370 | (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 | |
6371 | le32_to_cpu(stats->tmac_nucst_frms); | |
541ae68f | 6372 | tmp_stats[i++] = |
ffb5df6c JP |
6373 | (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 | |
6374 | le32_to_cpu(stats->tmac_any_err_frms); | |
6375 | tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets); | |
6376 | tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets); | |
541ae68f | 6377 | tmp_stats[i++] = |
ffb5df6c JP |
6378 | (u64)le32_to_cpu(stats->tmac_vld_ip_oflow) << 32 | |
6379 | le32_to_cpu(stats->tmac_vld_ip); | |
541ae68f | 6380 | tmp_stats[i++] = |
ffb5df6c JP |
6381 | (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 | |
6382 | le32_to_cpu(stats->tmac_drop_ip); | |
541ae68f | 6383 | tmp_stats[i++] = |
ffb5df6c JP |
6384 | (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 | |
6385 | le32_to_cpu(stats->tmac_icmp); | |
541ae68f | 6386 | tmp_stats[i++] = |
ffb5df6c JP |
6387 | (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 | |
6388 | le32_to_cpu(stats->tmac_rst_tcp); | |
6389 | tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp); | |
6390 | tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 | | |
6391 | le32_to_cpu(stats->tmac_udp); | |
541ae68f | 6392 | tmp_stats[i++] = |
ffb5df6c JP |
6393 | (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 | |
6394 | le32_to_cpu(stats->rmac_vld_frms); | |
541ae68f | 6395 | tmp_stats[i++] = |
ffb5df6c JP |
6396 | (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 | |
6397 | le32_to_cpu(stats->rmac_data_octets); | |
6398 | tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms); | |
6399 | tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms); | |
541ae68f | 6400 | tmp_stats[i++] = |
ffb5df6c JP |
6401 | (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 | |
6402 | le32_to_cpu(stats->rmac_vld_mcst_frms); | |
541ae68f | 6403 | tmp_stats[i++] = |
ffb5df6c JP |
6404 | (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 | |
6405 | le32_to_cpu(stats->rmac_vld_bcst_frms); | |
6406 | tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms); | |
6407 | tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms); | |
6408 | tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms); | |
6409 | tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms); | |
6410 | tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms); | |
d44570e4 | 6411 | tmp_stats[i++] = |
ffb5df6c JP |
6412 | (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 | |
6413 | le32_to_cpu(stats->rmac_ttl_octets); | |
bd1034f0 | 6414 | tmp_stats[i++] = |
ffb5df6c JP |
6415 | (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32 |
6416 | | le32_to_cpu(stats->rmac_accepted_ucst_frms); | |
d44570e4 | 6417 | tmp_stats[i++] = |
ffb5df6c JP |
6418 | (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow) |
6419 | << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms); | |
541ae68f | 6420 | tmp_stats[i++] = |
ffb5df6c JP |
6421 | (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 | |
6422 | le32_to_cpu(stats->rmac_discarded_frms); | |
d44570e4 | 6423 | tmp_stats[i++] = |
ffb5df6c JP |
6424 | (u64)le32_to_cpu(stats->rmac_drop_events_oflow) |
6425 | << 32 | le32_to_cpu(stats->rmac_drop_events); | |
6426 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets); | |
6427 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms); | |
541ae68f | 6428 | tmp_stats[i++] = |
ffb5df6c JP |
6429 | (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 | |
6430 | le32_to_cpu(stats->rmac_usized_frms); | |
541ae68f | 6431 | tmp_stats[i++] = |
ffb5df6c JP |
6432 | (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 | |
6433 | le32_to_cpu(stats->rmac_osized_frms); | |
541ae68f | 6434 | tmp_stats[i++] = |
ffb5df6c JP |
6435 | (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 | |
6436 | le32_to_cpu(stats->rmac_frag_frms); | |
541ae68f | 6437 | tmp_stats[i++] = |
ffb5df6c JP |
6438 | (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 | |
6439 | le32_to_cpu(stats->rmac_jabber_frms); | |
6440 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms); | |
6441 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms); | |
6442 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms); | |
6443 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms); | |
6444 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms); | |
6445 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms); | |
bd1034f0 | 6446 | tmp_stats[i++] = |
ffb5df6c JP |
6447 | (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 | |
6448 | le32_to_cpu(stats->rmac_ip); | |
6449 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets); | |
6450 | tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip); | |
bd1034f0 | 6451 | tmp_stats[i++] = |
ffb5df6c JP |
6452 | (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 | |
6453 | le32_to_cpu(stats->rmac_drop_ip); | |
bd1034f0 | 6454 | tmp_stats[i++] = |
ffb5df6c JP |
6455 | (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 | |
6456 | le32_to_cpu(stats->rmac_icmp); | |
6457 | tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp); | |
bd1034f0 | 6458 | tmp_stats[i++] = |
ffb5df6c JP |
6459 | (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 | |
6460 | le32_to_cpu(stats->rmac_udp); | |
541ae68f | 6461 | tmp_stats[i++] = |
ffb5df6c JP |
6462 | (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 | |
6463 | le32_to_cpu(stats->rmac_err_drp_udp); | |
6464 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym); | |
6465 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0); | |
6466 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1); | |
6467 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2); | |
6468 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3); | |
6469 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4); | |
6470 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5); | |
6471 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6); | |
6472 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7); | |
6473 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0); | |
6474 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1); | |
6475 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2); | |
6476 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3); | |
6477 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4); | |
6478 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5); | |
6479 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6); | |
6480 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7); | |
541ae68f | 6481 | tmp_stats[i++] = |
ffb5df6c JP |
6482 | (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 | |
6483 | le32_to_cpu(stats->rmac_pause_cnt); | |
6484 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt); | |
6485 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt); | |
541ae68f | 6486 | tmp_stats[i++] = |
ffb5df6c JP |
6487 | (u64)le32_to_cpu(stats->rmac_accepted_ip_oflow) << 32 | |
6488 | le32_to_cpu(stats->rmac_accepted_ip); | |
6489 | tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp); | |
6490 | tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt); | |
6491 | tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt); | |
6492 | tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt); | |
6493 | tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt); | |
6494 | tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt); | |
6495 | tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt); | |
6496 | tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt); | |
6497 | tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt); | |
6498 | tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt); | |
6499 | tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt); | |
6500 | tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt); | |
6501 | tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt); | |
6502 | tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt); | |
6503 | tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt); | |
6504 | tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt); | |
6505 | tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt); | |
6506 | tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt); | |
6507 | tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt); | |
fa1f0cb3 SS |
6508 | |
6509 | /* Enhanced statistics exist only for Hercules */ | |
d44570e4 | 6510 | if (sp->device_type == XFRAME_II_DEVICE) { |
fa1f0cb3 | 6511 | tmp_stats[i++] = |
ffb5df6c | 6512 | le64_to_cpu(stats->rmac_ttl_1519_4095_frms); |
fa1f0cb3 | 6513 | tmp_stats[i++] = |
ffb5df6c | 6514 | le64_to_cpu(stats->rmac_ttl_4096_8191_frms); |
fa1f0cb3 | 6515 | tmp_stats[i++] = |
ffb5df6c JP |
6516 | le64_to_cpu(stats->rmac_ttl_8192_max_frms); |
6517 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms); | |
6518 | tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms); | |
6519 | tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms); | |
6520 | tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms); | |
6521 | tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms); | |
6522 | tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard); | |
6523 | tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard); | |
6524 | tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard); | |
6525 | tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard); | |
6526 | tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard); | |
6527 | tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard); | |
6528 | tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard); | |
6529 | tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt); | |
fa1f0cb3 SS |
6530 | } |
6531 | ||
7ba013ac | 6532 | tmp_stats[i++] = 0; |
ffb5df6c JP |
6533 | tmp_stats[i++] = swstats->single_ecc_errs; |
6534 | tmp_stats[i++] = swstats->double_ecc_errs; | |
6535 | tmp_stats[i++] = swstats->parity_err_cnt; | |
6536 | tmp_stats[i++] = swstats->serious_err_cnt; | |
6537 | tmp_stats[i++] = swstats->soft_reset_cnt; | |
6538 | tmp_stats[i++] = swstats->fifo_full_cnt; | |
8116f3cf | 6539 | for (k = 0; k < MAX_RX_RINGS; k++) |
ffb5df6c JP |
6540 | tmp_stats[i++] = swstats->ring_full_cnt[k]; |
6541 | tmp_stats[i++] = xstats->alarm_transceiver_temp_high; | |
6542 | tmp_stats[i++] = xstats->alarm_transceiver_temp_low; | |
6543 | tmp_stats[i++] = xstats->alarm_laser_bias_current_high; | |
6544 | tmp_stats[i++] = xstats->alarm_laser_bias_current_low; | |
6545 | tmp_stats[i++] = xstats->alarm_laser_output_power_high; | |
6546 | tmp_stats[i++] = xstats->alarm_laser_output_power_low; | |
6547 | tmp_stats[i++] = xstats->warn_transceiver_temp_high; | |
6548 | tmp_stats[i++] = xstats->warn_transceiver_temp_low; | |
6549 | tmp_stats[i++] = xstats->warn_laser_bias_current_high; | |
6550 | tmp_stats[i++] = xstats->warn_laser_bias_current_low; | |
6551 | tmp_stats[i++] = xstats->warn_laser_output_power_high; | |
6552 | tmp_stats[i++] = xstats->warn_laser_output_power_low; | |
6553 | tmp_stats[i++] = swstats->clubbed_frms_cnt; | |
6554 | tmp_stats[i++] = swstats->sending_both; | |
6555 | tmp_stats[i++] = swstats->outof_sequence_pkts; | |
6556 | tmp_stats[i++] = swstats->flush_max_pkts; | |
6557 | if (swstats->num_aggregations) { | |
6558 | u64 tmp = swstats->sum_avg_pkts_aggregated; | |
bd1034f0 | 6559 | int count = 0; |
6aa20a22 | 6560 | /* |
bd1034f0 AR |
6561 | * Since 64-bit divide does not work on all platforms, |
6562 | * do repeated subtraction. | |
6563 | */ | |
ffb5df6c JP |
6564 | while (tmp >= swstats->num_aggregations) { |
6565 | tmp -= swstats->num_aggregations; | |
bd1034f0 AR |
6566 | count++; |
6567 | } | |
6568 | tmp_stats[i++] = count; | |
d44570e4 | 6569 | } else |
bd1034f0 | 6570 | tmp_stats[i++] = 0; |
ffb5df6c JP |
6571 | tmp_stats[i++] = swstats->mem_alloc_fail_cnt; |
6572 | tmp_stats[i++] = swstats->pci_map_fail_cnt; | |
6573 | tmp_stats[i++] = swstats->watchdog_timer_cnt; | |
6574 | tmp_stats[i++] = swstats->mem_allocated; | |
6575 | tmp_stats[i++] = swstats->mem_freed; | |
6576 | tmp_stats[i++] = swstats->link_up_cnt; | |
6577 | tmp_stats[i++] = swstats->link_down_cnt; | |
6578 | tmp_stats[i++] = swstats->link_up_time; | |
6579 | tmp_stats[i++] = swstats->link_down_time; | |
6580 | ||
6581 | tmp_stats[i++] = swstats->tx_buf_abort_cnt; | |
6582 | tmp_stats[i++] = swstats->tx_desc_abort_cnt; | |
6583 | tmp_stats[i++] = swstats->tx_parity_err_cnt; | |
6584 | tmp_stats[i++] = swstats->tx_link_loss_cnt; | |
6585 | tmp_stats[i++] = swstats->tx_list_proc_err_cnt; | |
6586 | ||
6587 | tmp_stats[i++] = swstats->rx_parity_err_cnt; | |
6588 | tmp_stats[i++] = swstats->rx_abort_cnt; | |
6589 | tmp_stats[i++] = swstats->rx_parity_abort_cnt; | |
6590 | tmp_stats[i++] = swstats->rx_rda_fail_cnt; | |
6591 | tmp_stats[i++] = swstats->rx_unkn_prot_cnt; | |
6592 | tmp_stats[i++] = swstats->rx_fcs_err_cnt; | |
6593 | tmp_stats[i++] = swstats->rx_buf_size_err_cnt; | |
6594 | tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt; | |
6595 | tmp_stats[i++] = swstats->rx_unkn_err_cnt; | |
6596 | tmp_stats[i++] = swstats->tda_err_cnt; | |
6597 | tmp_stats[i++] = swstats->pfc_err_cnt; | |
6598 | tmp_stats[i++] = swstats->pcc_err_cnt; | |
6599 | tmp_stats[i++] = swstats->tti_err_cnt; | |
6600 | tmp_stats[i++] = swstats->tpa_err_cnt; | |
6601 | tmp_stats[i++] = swstats->sm_err_cnt; | |
6602 | tmp_stats[i++] = swstats->lso_err_cnt; | |
6603 | tmp_stats[i++] = swstats->mac_tmac_err_cnt; | |
6604 | tmp_stats[i++] = swstats->mac_rmac_err_cnt; | |
6605 | tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt; | |
6606 | tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt; | |
6607 | tmp_stats[i++] = swstats->rc_err_cnt; | |
6608 | tmp_stats[i++] = swstats->prc_pcix_err_cnt; | |
6609 | tmp_stats[i++] = swstats->rpa_err_cnt; | |
6610 | tmp_stats[i++] = swstats->rda_err_cnt; | |
6611 | tmp_stats[i++] = swstats->rti_err_cnt; | |
6612 | tmp_stats[i++] = swstats->mc_err_cnt; | |
1da177e4 LT |
6613 | } |
6614 | ||
ac1f60db | 6615 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 | 6616 | { |
d44570e4 | 6617 | return XENA_REG_SPACE; |
1da177e4 LT |
6618 | } |
6619 | ||
6620 | ||
ac1f60db | 6621 | static int s2io_get_eeprom_len(struct net_device *dev) |
1da177e4 | 6622 | { |
d44570e4 | 6623 | return XENA_EEPROM_SPACE; |
1da177e4 LT |
6624 | } |
6625 | ||
b9f2c044 | 6626 | static int s2io_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 6627 | { |
4cf1653a | 6628 | struct s2io_nic *sp = netdev_priv(dev); |
b9f2c044 JG |
6629 | |
6630 | switch (sset) { | |
6631 | case ETH_SS_TEST: | |
6632 | return S2IO_TEST_LEN; | |
6633 | case ETH_SS_STATS: | |
d44570e4 | 6634 | switch (sp->device_type) { |
b9f2c044 JG |
6635 | case XFRAME_I_DEVICE: |
6636 | return XFRAME_I_STAT_LEN; | |
6637 | case XFRAME_II_DEVICE: | |
6638 | return XFRAME_II_STAT_LEN; | |
6639 | default: | |
6640 | return 0; | |
6641 | } | |
6642 | default: | |
6643 | return -EOPNOTSUPP; | |
6644 | } | |
1da177e4 | 6645 | } |
ac1f60db AB |
6646 | |
6647 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
d44570e4 | 6648 | u32 stringset, u8 *data) |
1da177e4 | 6649 | { |
fa1f0cb3 | 6650 | int stat_size = 0; |
4cf1653a | 6651 | struct s2io_nic *sp = netdev_priv(dev); |
fa1f0cb3 | 6652 | |
1da177e4 LT |
6653 | switch (stringset) { |
6654 | case ETH_SS_TEST: | |
6655 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
6656 | break; | |
6657 | case ETH_SS_STATS: | |
fa1f0cb3 | 6658 | stat_size = sizeof(ethtool_xena_stats_keys); |
d44570e4 JP |
6659 | memcpy(data, ðtool_xena_stats_keys, stat_size); |
6660 | if (sp->device_type == XFRAME_II_DEVICE) { | |
fa1f0cb3 | 6661 | memcpy(data + stat_size, |
d44570e4 JP |
6662 | ðtool_enhanced_stats_keys, |
6663 | sizeof(ethtool_enhanced_stats_keys)); | |
fa1f0cb3 SS |
6664 | stat_size += sizeof(ethtool_enhanced_stats_keys); |
6665 | } | |
6666 | ||
6667 | memcpy(data + stat_size, ðtool_driver_stats_keys, | |
d44570e4 | 6668 | sizeof(ethtool_driver_stats_keys)); |
1da177e4 LT |
6669 | } |
6670 | } | |
1da177e4 | 6671 | |
b437a8cc | 6672 | static int s2io_set_features(struct net_device *dev, u32 features) |
958de193 JM |
6673 | { |
6674 | struct s2io_nic *sp = netdev_priv(dev); | |
b437a8cc | 6675 | u32 changed = (features ^ dev->features) & NETIF_F_LRO; |
958de193 JM |
6676 | |
6677 | if (changed && netif_running(dev)) { | |
b437a8cc MM |
6678 | int rc; |
6679 | ||
958de193 JM |
6680 | s2io_stop_all_tx_queue(sp); |
6681 | s2io_card_down(sp); | |
b437a8cc | 6682 | dev->features = features; |
958de193 JM |
6683 | rc = s2io_card_up(sp); |
6684 | if (rc) | |
6685 | s2io_reset(sp); | |
6686 | else | |
6687 | s2io_start_all_tx_queue(sp); | |
b437a8cc MM |
6688 | |
6689 | return rc ? rc : 1; | |
958de193 JM |
6690 | } |
6691 | ||
b437a8cc | 6692 | return 0; |
958de193 JM |
6693 | } |
6694 | ||
7282d491 | 6695 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
6696 | .get_settings = s2io_ethtool_gset, |
6697 | .set_settings = s2io_ethtool_sset, | |
6698 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
6699 | .get_regs_len = s2io_ethtool_get_regs_len, | |
6700 | .get_regs = s2io_ethtool_gregs, | |
6701 | .get_link = ethtool_op_get_link, | |
6702 | .get_eeprom_len = s2io_get_eeprom_len, | |
6703 | .get_eeprom = s2io_ethtool_geeprom, | |
6704 | .set_eeprom = s2io_ethtool_seeprom, | |
0cec35eb | 6705 | .get_ringparam = s2io_ethtool_gringparam, |
1da177e4 LT |
6706 | .get_pauseparam = s2io_ethtool_getpause_data, |
6707 | .set_pauseparam = s2io_ethtool_setpause_data, | |
1da177e4 LT |
6708 | .self_test = s2io_ethtool_test, |
6709 | .get_strings = s2io_ethtool_get_strings, | |
034e3450 | 6710 | .set_phys_id = s2io_ethtool_set_led, |
b9f2c044 JG |
6711 | .get_ethtool_stats = s2io_get_ethtool_stats, |
6712 | .get_sset_count = s2io_get_sset_count, | |
1da177e4 LT |
6713 | }; |
6714 | ||
6715 | /** | |
20346722 | 6716 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
6717 | * @dev : Device pointer. |
6718 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
6719 | * a proprietary structure used to pass information to the driver. | |
6720 | * @cmd : This is used to distinguish between the different commands that | |
6721 | * can be passed to the IOCTL functions. | |
6722 | * Description: | |
20346722 | 6723 | * Currently there are no special functionality supported in IOCTL, hence |
6724 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
6725 | */ |
6726 | ||
ac1f60db | 6727 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
6728 | { |
6729 | return -EOPNOTSUPP; | |
6730 | } | |
6731 | ||
6732 | /** | |
6733 | * s2io_change_mtu - entry point to change MTU size for the device. | |
6734 | * @dev : device pointer. | |
6735 | * @new_mtu : the new MTU size for the device. | |
6736 | * Description: A driver entry point to change MTU size for the device. | |
6737 | * Before changing the MTU the device must be stopped. | |
6738 | * Return value: | |
6739 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
6740 | * file on failure. | |
6741 | */ | |
6742 | ||
ac1f60db | 6743 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 6744 | { |
4cf1653a | 6745 | struct s2io_nic *sp = netdev_priv(dev); |
9f74ffde | 6746 | int ret = 0; |
1da177e4 LT |
6747 | |
6748 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
d44570e4 | 6749 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name); |
1da177e4 LT |
6750 | return -EPERM; |
6751 | } | |
6752 | ||
1da177e4 | 6753 | dev->mtu = new_mtu; |
d8892c6e | 6754 | if (netif_running(dev)) { |
3a3d5756 | 6755 | s2io_stop_all_tx_queue(sp); |
e6a8fee2 | 6756 | s2io_card_down(sp); |
9f74ffde SH |
6757 | ret = s2io_card_up(sp); |
6758 | if (ret) { | |
d8892c6e | 6759 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", |
b39d66a8 | 6760 | __func__); |
9f74ffde | 6761 | return ret; |
d8892c6e | 6762 | } |
3a3d5756 | 6763 | s2io_wake_all_tx_queue(sp); |
d8892c6e | 6764 | } else { /* Device is down */ |
1ee6dd77 | 6765 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e | 6766 | u64 val64 = new_mtu; |
6767 | ||
6768 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
6769 | } | |
1da177e4 | 6770 | |
9f74ffde | 6771 | return ret; |
1da177e4 LT |
6772 | } |
6773 | ||
1da177e4 LT |
6774 | /** |
6775 | * s2io_set_link - Set the LInk status | |
6776 | * @data: long pointer to device private structue | |
6777 | * Description: Sets the link status for the adapter | |
6778 | */ | |
6779 | ||
c4028958 | 6780 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 6781 | { |
d44570e4 JP |
6782 | struct s2io_nic *nic = container_of(work, struct s2io_nic, |
6783 | set_link_task); | |
1da177e4 | 6784 | struct net_device *dev = nic->dev; |
1ee6dd77 | 6785 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
6786 | register u64 val64; |
6787 | u16 subid; | |
6788 | ||
22747d6b FR |
6789 | rtnl_lock(); |
6790 | ||
6791 | if (!netif_running(dev)) | |
6792 | goto out_unlock; | |
6793 | ||
92b84437 | 6794 | if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) { |
1da177e4 | 6795 | /* The card is being reset, no point doing anything */ |
22747d6b | 6796 | goto out_unlock; |
1da177e4 LT |
6797 | } |
6798 | ||
6799 | subid = nic->pdev->subsystem_device; | |
a371a07d | 6800 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
6801 | /* | |
6802 | * Allow a small delay for the NICs self initiated | |
6803 | * cleanup to complete. | |
6804 | */ | |
6805 | msleep(100); | |
6806 | } | |
1da177e4 LT |
6807 | |
6808 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
6809 | if (LINK_IS_UP(val64)) { |
6810 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
6811 | if (verify_xena_quiescence(nic)) { | |
6812 | val64 = readq(&bar0->adapter_control); | |
6813 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 6814 | writeq(val64, &bar0->adapter_control); |
19a60522 | 6815 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
d44570e4 | 6816 | nic->device_type, subid)) { |
19a60522 SS |
6817 | val64 = readq(&bar0->gpio_control); |
6818 | val64 |= GPIO_CTRL_GPIO_0; | |
6819 | writeq(val64, &bar0->gpio_control); | |
6820 | val64 = readq(&bar0->gpio_control); | |
6821 | } else { | |
6822 | val64 |= ADAPTER_LED_ON; | |
6823 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 6824 | } |
f957bcf0 | 6825 | nic->device_enabled_once = true; |
19a60522 | 6826 | } else { |
9e39f7c5 JP |
6827 | DBG_PRINT(ERR_DBG, |
6828 | "%s: Error: device is not Quiescent\n", | |
6829 | dev->name); | |
3a3d5756 | 6830 | s2io_stop_all_tx_queue(nic); |
1da177e4 | 6831 | } |
19a60522 | 6832 | } |
92c48799 SS |
6833 | val64 = readq(&bar0->adapter_control); |
6834 | val64 |= ADAPTER_LED_ON; | |
6835 | writeq(val64, &bar0->adapter_control); | |
6836 | s2io_link(nic, LINK_UP); | |
19a60522 SS |
6837 | } else { |
6838 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
6839 | subid)) { | |
6840 | val64 = readq(&bar0->gpio_control); | |
6841 | val64 &= ~GPIO_CTRL_GPIO_0; | |
6842 | writeq(val64, &bar0->gpio_control); | |
6843 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 6844 | } |
92c48799 SS |
6845 | /* turn off LED */ |
6846 | val64 = readq(&bar0->adapter_control); | |
d44570e4 | 6847 | val64 = val64 & (~ADAPTER_LED_ON); |
92c48799 | 6848 | writeq(val64, &bar0->adapter_control); |
19a60522 | 6849 | s2io_link(nic, LINK_DOWN); |
1da177e4 | 6850 | } |
92b84437 | 6851 | clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state)); |
22747d6b FR |
6852 | |
6853 | out_unlock: | |
d8d70caf | 6854 | rtnl_unlock(); |
1da177e4 LT |
6855 | } |
6856 | ||
1ee6dd77 | 6857 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
d44570e4 JP |
6858 | struct buffAdd *ba, |
6859 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
6860 | u64 *temp2, int size) | |
5d3213cc AR |
6861 | { |
6862 | struct net_device *dev = sp->dev; | |
491abf25 | 6863 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
5d3213cc AR |
6864 | |
6865 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6866 | struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; |
5d3213cc AR |
6867 | /* allocate skb */ |
6868 | if (*skb) { | |
6869 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
6870 | /* | |
6871 | * As Rx frame are not going to be processed, | |
6872 | * using same mapped address for the Rxd | |
6873 | * buffer pointer | |
6874 | */ | |
6d517a27 | 6875 | rxdp1->Buffer0_ptr = *temp0; |
5d3213cc AR |
6876 | } else { |
6877 | *skb = dev_alloc_skb(size); | |
6878 | if (!(*skb)) { | |
9e39f7c5 JP |
6879 | DBG_PRINT(INFO_DBG, |
6880 | "%s: Out of memory to allocate %s\n", | |
6881 | dev->name, "1 buf mode SKBs"); | |
ffb5df6c | 6882 | stats->mem_alloc_fail_cnt++; |
5d3213cc AR |
6883 | return -ENOMEM ; |
6884 | } | |
ffb5df6c | 6885 | stats->mem_allocated += (*skb)->truesize; |
5d3213cc AR |
6886 | /* storing the mapped addr in a temp variable |
6887 | * such it will be used for next rxd whose | |
6888 | * Host Control is NULL | |
6889 | */ | |
6d517a27 | 6890 | rxdp1->Buffer0_ptr = *temp0 = |
d44570e4 JP |
6891 | pci_map_single(sp->pdev, (*skb)->data, |
6892 | size - NET_IP_ALIGN, | |
6893 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6894 | if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr)) |
491abf25 | 6895 | goto memalloc_failed; |
5d3213cc AR |
6896 | rxdp->Host_Control = (unsigned long) (*skb); |
6897 | } | |
6898 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6899 | struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; |
5d3213cc AR |
6900 | /* Two buffer Mode */ |
6901 | if (*skb) { | |
6d517a27 VP |
6902 | rxdp3->Buffer2_ptr = *temp2; |
6903 | rxdp3->Buffer0_ptr = *temp0; | |
6904 | rxdp3->Buffer1_ptr = *temp1; | |
5d3213cc AR |
6905 | } else { |
6906 | *skb = dev_alloc_skb(size); | |
2ceaac75 | 6907 | if (!(*skb)) { |
9e39f7c5 JP |
6908 | DBG_PRINT(INFO_DBG, |
6909 | "%s: Out of memory to allocate %s\n", | |
6910 | dev->name, | |
6911 | "2 buf mode SKBs"); | |
ffb5df6c | 6912 | stats->mem_alloc_fail_cnt++; |
2ceaac75 DR |
6913 | return -ENOMEM; |
6914 | } | |
ffb5df6c | 6915 | stats->mem_allocated += (*skb)->truesize; |
6d517a27 | 6916 | rxdp3->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6917 | pci_map_single(sp->pdev, (*skb)->data, |
6918 | dev->mtu + 4, | |
6919 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6920 | if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr)) |
491abf25 | 6921 | goto memalloc_failed; |
6d517a27 | 6922 | rxdp3->Buffer0_ptr = *temp0 = |
d44570e4 JP |
6923 | pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, |
6924 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6925 | if (pci_dma_mapping_error(sp->pdev, |
d44570e4 JP |
6926 | rxdp3->Buffer0_ptr)) { |
6927 | pci_unmap_single(sp->pdev, | |
6928 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
6929 | dev->mtu + 4, | |
6930 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6931 | goto memalloc_failed; |
6932 | } | |
5d3213cc AR |
6933 | rxdp->Host_Control = (unsigned long) (*skb); |
6934 | ||
6935 | /* Buffer-1 will be dummy buffer not used */ | |
6d517a27 | 6936 | rxdp3->Buffer1_ptr = *temp1 = |
5d3213cc | 6937 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
d44570e4 | 6938 | PCI_DMA_FROMDEVICE); |
8d8bb39b | 6939 | if (pci_dma_mapping_error(sp->pdev, |
d44570e4 JP |
6940 | rxdp3->Buffer1_ptr)) { |
6941 | pci_unmap_single(sp->pdev, | |
6942 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
6943 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
6944 | pci_unmap_single(sp->pdev, | |
6945 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
6946 | dev->mtu + 4, | |
6947 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6948 | goto memalloc_failed; |
6949 | } | |
5d3213cc AR |
6950 | } |
6951 | } | |
6952 | return 0; | |
d44570e4 JP |
6953 | |
6954 | memalloc_failed: | |
6955 | stats->pci_map_fail_cnt++; | |
6956 | stats->mem_freed += (*skb)->truesize; | |
6957 | dev_kfree_skb(*skb); | |
6958 | return -ENOMEM; | |
5d3213cc | 6959 | } |
491abf25 | 6960 | |
1ee6dd77 RB |
6961 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6962 | int size) | |
5d3213cc AR |
6963 | { |
6964 | struct net_device *dev = sp->dev; | |
6965 | if (sp->rxd_mode == RXD_MODE_1) { | |
d44570e4 | 6966 | rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); |
5d3213cc AR |
6967 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
6968 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6969 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
d44570e4 | 6970 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4); |
5d3213cc AR |
6971 | } |
6972 | } | |
6973 | ||
1ee6dd77 | 6974 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6975 | { |
6976 | int i, j, k, blk_cnt = 0, size; | |
5d3213cc | 6977 | struct config_param *config = &sp->config; |
ffb5df6c | 6978 | struct mac_info *mac_control = &sp->mac_control; |
5d3213cc | 6979 | struct net_device *dev = sp->dev; |
1ee6dd77 | 6980 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6981 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6982 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6983 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6984 | ||
6985 | /* Calculate the size based on ring mode */ | |
6986 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6987 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6988 | if (sp->rxd_mode == RXD_MODE_1) | |
6989 | size += NET_IP_ALIGN; | |
6990 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6991 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
5d3213cc AR |
6992 | |
6993 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
6994 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
6995 | struct ring_info *ring = &mac_control->rings[i]; | |
6996 | ||
d44570e4 | 6997 | blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1); |
5d3213cc AR |
6998 | |
6999 | for (j = 0; j < blk_cnt; j++) { | |
7000 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
d44570e4 JP |
7001 | rxdp = ring->rx_blocks[j].rxds[k].virt_addr; |
7002 | if (sp->rxd_mode == RXD_MODE_3B) | |
13d866a9 | 7003 | ba = &ring->ba[j][k]; |
d44570e4 JP |
7004 | if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb, |
7005 | (u64 *)&temp0_64, | |
7006 | (u64 *)&temp1_64, | |
7007 | (u64 *)&temp2_64, | |
7008 | size) == -ENOMEM) { | |
ac1f90d6 SS |
7009 | return 0; |
7010 | } | |
5d3213cc AR |
7011 | |
7012 | set_rxd_buffer_size(sp, rxdp, size); | |
7013 | wmb(); | |
7014 | /* flip the Ownership bit to Hardware */ | |
7015 | rxdp->Control_1 |= RXD_OWN_XENA; | |
7016 | } | |
7017 | } | |
7018 | } | |
7019 | return 0; | |
7020 | ||
7021 | } | |
7022 | ||
d44570e4 | 7023 | static int s2io_add_isr(struct s2io_nic *sp) |
1da177e4 | 7024 | { |
e6a8fee2 | 7025 | int ret = 0; |
c92ca04b | 7026 | struct net_device *dev = sp->dev; |
e6a8fee2 | 7027 | int err = 0; |
1da177e4 | 7028 | |
eaae7f72 | 7029 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
7030 | ret = s2io_enable_msi_x(sp); |
7031 | if (ret) { | |
7032 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
eaae7f72 | 7033 | sp->config.intr_type = INTA; |
20346722 | 7034 | } |
1da177e4 | 7035 | |
d44570e4 JP |
7036 | /* |
7037 | * Store the values of the MSIX table in | |
7038 | * the struct s2io_nic structure | |
7039 | */ | |
e6a8fee2 | 7040 | store_xmsi_data(sp); |
c92ca04b | 7041 | |
e6a8fee2 | 7042 | /* After proper initialization of H/W, register ISR */ |
eaae7f72 | 7043 | if (sp->config.intr_type == MSI_X) { |
ac731ab6 SH |
7044 | int i, msix_rx_cnt = 0; |
7045 | ||
f61e0a35 SH |
7046 | for (i = 0; i < sp->num_entries; i++) { |
7047 | if (sp->s2io_entries[i].in_use == MSIX_FLG) { | |
7048 | if (sp->s2io_entries[i].type == | |
d44570e4 | 7049 | MSIX_RING_TYPE) { |
ac731ab6 SH |
7050 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", |
7051 | dev->name, i); | |
7052 | err = request_irq(sp->entries[i].vector, | |
d44570e4 JP |
7053 | s2io_msix_ring_handle, |
7054 | 0, | |
7055 | sp->desc[i], | |
7056 | sp->s2io_entries[i].arg); | |
ac731ab6 | 7057 | } else if (sp->s2io_entries[i].type == |
d44570e4 | 7058 | MSIX_ALARM_TYPE) { |
ac731ab6 | 7059 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", |
d44570e4 | 7060 | dev->name, i); |
ac731ab6 | 7061 | err = request_irq(sp->entries[i].vector, |
d44570e4 JP |
7062 | s2io_msix_fifo_handle, |
7063 | 0, | |
7064 | sp->desc[i], | |
7065 | sp->s2io_entries[i].arg); | |
ac731ab6 | 7066 | |
fb6a825b | 7067 | } |
ac731ab6 SH |
7068 | /* if either data or addr is zero print it. */ |
7069 | if (!(sp->msix_info[i].addr && | |
d44570e4 | 7070 | sp->msix_info[i].data)) { |
ac731ab6 | 7071 | DBG_PRINT(ERR_DBG, |
d44570e4 JP |
7072 | "%s @Addr:0x%llx Data:0x%llx\n", |
7073 | sp->desc[i], | |
7074 | (unsigned long long) | |
7075 | sp->msix_info[i].addr, | |
7076 | (unsigned long long) | |
7077 | ntohl(sp->msix_info[i].data)); | |
ac731ab6 | 7078 | } else |
fb6a825b | 7079 | msix_rx_cnt++; |
ac731ab6 SH |
7080 | if (err) { |
7081 | remove_msix_isr(sp); | |
7082 | ||
7083 | DBG_PRINT(ERR_DBG, | |
d44570e4 JP |
7084 | "%s:MSI-X-%d registration " |
7085 | "failed\n", dev->name, i); | |
ac731ab6 SH |
7086 | |
7087 | DBG_PRINT(ERR_DBG, | |
d44570e4 JP |
7088 | "%s: Defaulting to INTA\n", |
7089 | dev->name); | |
ac731ab6 SH |
7090 | sp->config.intr_type = INTA; |
7091 | break; | |
fb6a825b | 7092 | } |
ac731ab6 SH |
7093 | sp->s2io_entries[i].in_use = |
7094 | MSIX_REGISTERED_SUCCESS; | |
c92ca04b | 7095 | } |
e6a8fee2 | 7096 | } |
18b2b7bd | 7097 | if (!err) { |
6cef2b8e | 7098 | pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt); |
9e39f7c5 JP |
7099 | DBG_PRINT(INFO_DBG, |
7100 | "MSI-X-TX entries enabled through alarm vector\n"); | |
18b2b7bd | 7101 | } |
e6a8fee2 | 7102 | } |
eaae7f72 | 7103 | if (sp->config.intr_type == INTA) { |
d44570e4 JP |
7104 | err = request_irq((int)sp->pdev->irq, s2io_isr, IRQF_SHARED, |
7105 | sp->name, dev); | |
e6a8fee2 AR |
7106 | if (err) { |
7107 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
7108 | dev->name); | |
7109 | return -1; | |
7110 | } | |
7111 | } | |
7112 | return 0; | |
7113 | } | |
d44570e4 JP |
7114 | |
7115 | static void s2io_rem_isr(struct s2io_nic *sp) | |
e6a8fee2 | 7116 | { |
18b2b7bd SH |
7117 | if (sp->config.intr_type == MSI_X) |
7118 | remove_msix_isr(sp); | |
7119 | else | |
7120 | remove_inta_isr(sp); | |
e6a8fee2 AR |
7121 | } |
7122 | ||
d44570e4 | 7123 | static void do_s2io_card_down(struct s2io_nic *sp, int do_io) |
e6a8fee2 AR |
7124 | { |
7125 | int cnt = 0; | |
1ee6dd77 | 7126 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 | 7127 | register u64 val64 = 0; |
5f490c96 SH |
7128 | struct config_param *config; |
7129 | config = &sp->config; | |
e6a8fee2 | 7130 | |
9f74ffde SH |
7131 | if (!is_s2io_card_up(sp)) |
7132 | return; | |
7133 | ||
e6a8fee2 AR |
7134 | del_timer_sync(&sp->alarm_timer); |
7135 | /* If s2io_set_link task is executing, wait till it completes. */ | |
d44570e4 | 7136 | while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state))) |
e6a8fee2 | 7137 | msleep(50); |
92b84437 | 7138 | clear_bit(__S2IO_STATE_CARD_UP, &sp->state); |
e6a8fee2 | 7139 | |
5f490c96 | 7140 | /* Disable napi */ |
f61e0a35 SH |
7141 | if (sp->config.napi) { |
7142 | int off = 0; | |
7143 | if (config->intr_type == MSI_X) { | |
7144 | for (; off < sp->config.rx_ring_num; off++) | |
7145 | napi_disable(&sp->mac_control.rings[off].napi); | |
d44570e4 | 7146 | } |
f61e0a35 SH |
7147 | else |
7148 | napi_disable(&sp->napi); | |
7149 | } | |
5f490c96 | 7150 | |
e6a8fee2 | 7151 | /* disable Tx and Rx traffic on the NIC */ |
d796fdb7 LV |
7152 | if (do_io) |
7153 | stop_nic(sp); | |
e6a8fee2 AR |
7154 | |
7155 | s2io_rem_isr(sp); | |
1da177e4 | 7156 | |
01e16faa SH |
7157 | /* stop the tx queue, indicate link down */ |
7158 | s2io_link(sp, LINK_DOWN); | |
7159 | ||
1da177e4 | 7160 | /* Check if the device is Quiescent and then Reset the NIC */ |
d44570e4 | 7161 | while (do_io) { |
5d3213cc AR |
7162 | /* As per the HW requirement we need to replenish the |
7163 | * receive buffer to avoid the ring bump. Since there is | |
7164 | * no intention of processing the Rx frame at this pointwe are | |
7165 | * just settting the ownership bit of rxd in Each Rx | |
7166 | * ring to HW and set the appropriate buffer size | |
7167 | * based on the ring mode | |
7168 | */ | |
7169 | rxd_owner_bit_reset(sp); | |
7170 | ||
1da177e4 | 7171 | val64 = readq(&bar0->adapter_status); |
19a60522 | 7172 | if (verify_xena_quiescence(sp)) { |
d44570e4 JP |
7173 | if (verify_pcc_quiescent(sp, sp->device_enabled_once)) |
7174 | break; | |
1da177e4 LT |
7175 | } |
7176 | ||
7177 | msleep(50); | |
7178 | cnt++; | |
7179 | if (cnt == 10) { | |
9e39f7c5 JP |
7180 | DBG_PRINT(ERR_DBG, "Device not Quiescent - " |
7181 | "adapter status reads 0x%llx\n", | |
d44570e4 | 7182 | (unsigned long long)val64); |
1da177e4 LT |
7183 | break; |
7184 | } | |
d796fdb7 LV |
7185 | } |
7186 | if (do_io) | |
7187 | s2io_reset(sp); | |
1da177e4 | 7188 | |
7ba013ac | 7189 | /* Free all Tx buffers */ |
1da177e4 | 7190 | free_tx_buffers(sp); |
7ba013ac | 7191 | |
7192 | /* Free all Rx buffers */ | |
1da177e4 LT |
7193 | free_rx_buffers(sp); |
7194 | ||
92b84437 | 7195 | clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state)); |
1da177e4 LT |
7196 | } |
7197 | ||
d44570e4 | 7198 | static void s2io_card_down(struct s2io_nic *sp) |
d796fdb7 LV |
7199 | { |
7200 | do_s2io_card_down(sp, 1); | |
7201 | } | |
7202 | ||
d44570e4 | 7203 | static int s2io_card_up(struct s2io_nic *sp) |
1da177e4 | 7204 | { |
cc6e7c44 | 7205 | int i, ret = 0; |
1da177e4 | 7206 | struct config_param *config; |
ffb5df6c | 7207 | struct mac_info *mac_control; |
d44570e4 | 7208 | struct net_device *dev = (struct net_device *)sp->dev; |
e6a8fee2 | 7209 | u16 interruptible; |
1da177e4 LT |
7210 | |
7211 | /* Initialize the H/W I/O registers */ | |
9f74ffde SH |
7212 | ret = init_nic(sp); |
7213 | if (ret != 0) { | |
1da177e4 LT |
7214 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
7215 | dev->name); | |
9f74ffde SH |
7216 | if (ret != -EIO) |
7217 | s2io_reset(sp); | |
7218 | return ret; | |
1da177e4 LT |
7219 | } |
7220 | ||
20346722 | 7221 | /* |
7222 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
7223 | * Rx ring and initializing buffers into 30 Rx blocks |
7224 | */ | |
1da177e4 | 7225 | config = &sp->config; |
ffb5df6c | 7226 | mac_control = &sp->mac_control; |
1da177e4 LT |
7227 | |
7228 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
7229 | struct ring_info *ring = &mac_control->rings[i]; |
7230 | ||
7231 | ring->mtu = dev->mtu; | |
f0c54ace | 7232 | ring->lro = !!(dev->features & NETIF_F_LRO); |
13d866a9 | 7233 | ret = fill_rx_buffers(sp, ring, 1); |
0425b46a | 7234 | if (ret) { |
1da177e4 LT |
7235 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", |
7236 | dev->name); | |
7237 | s2io_reset(sp); | |
7238 | free_rx_buffers(sp); | |
7239 | return -ENOMEM; | |
7240 | } | |
7241 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
13d866a9 | 7242 | ring->rx_bufs_left); |
1da177e4 | 7243 | } |
5f490c96 SH |
7244 | |
7245 | /* Initialise napi */ | |
f61e0a35 | 7246 | if (config->napi) { |
f61e0a35 SH |
7247 | if (config->intr_type == MSI_X) { |
7248 | for (i = 0; i < sp->config.rx_ring_num; i++) | |
7249 | napi_enable(&sp->mac_control.rings[i].napi); | |
7250 | } else { | |
7251 | napi_enable(&sp->napi); | |
7252 | } | |
7253 | } | |
5f490c96 | 7254 | |
19a60522 SS |
7255 | /* Maintain the state prior to the open */ |
7256 | if (sp->promisc_flg) | |
7257 | sp->promisc_flg = 0; | |
7258 | if (sp->m_cast_flg) { | |
7259 | sp->m_cast_flg = 0; | |
d44570e4 | 7260 | sp->all_multi_pos = 0; |
19a60522 | 7261 | } |
1da177e4 LT |
7262 | |
7263 | /* Setting its receive mode */ | |
7264 | s2io_set_multicast(dev); | |
7265 | ||
f0c54ace | 7266 | if (dev->features & NETIF_F_LRO) { |
b41477f3 | 7267 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 | 7268 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
d44570e4 | 7269 | /* Check if we can use (if specified) user provided value */ |
7d3d0439 RA |
7270 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) |
7271 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
7272 | } | |
7273 | ||
1da177e4 LT |
7274 | /* Enable Rx Traffic and interrupts on the NIC */ |
7275 | if (start_nic(sp)) { | |
7276 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 7277 | s2io_reset(sp); |
e6a8fee2 AR |
7278 | free_rx_buffers(sp); |
7279 | return -ENODEV; | |
7280 | } | |
7281 | ||
7282 | /* Add interrupt service routine */ | |
7283 | if (s2io_add_isr(sp) != 0) { | |
eaae7f72 | 7284 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
7285 | s2io_rem_isr(sp); |
7286 | s2io_reset(sp); | |
1da177e4 LT |
7287 | free_rx_buffers(sp); |
7288 | return -ENODEV; | |
7289 | } | |
7290 | ||
25fff88e | 7291 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
7292 | ||
01e16faa SH |
7293 | set_bit(__S2IO_STATE_CARD_UP, &sp->state); |
7294 | ||
e6a8fee2 | 7295 | /* Enable select interrupts */ |
9caab458 | 7296 | en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS); |
01e16faa SH |
7297 | if (sp->config.intr_type != INTA) { |
7298 | interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR; | |
7299 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
7300 | } else { | |
e6a8fee2 | 7301 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
9caab458 | 7302 | interruptible |= TX_PIC_INTR; |
e6a8fee2 AR |
7303 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); |
7304 | } | |
7305 | ||
1da177e4 LT |
7306 | return 0; |
7307 | } | |
7308 | ||
20346722 | 7309 | /** |
1da177e4 LT |
7310 | * s2io_restart_nic - Resets the NIC. |
7311 | * @data : long pointer to the device private structure | |
7312 | * Description: | |
7313 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 7314 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
7315 | * the run time of the watch dog routine which is run holding a |
7316 | * spin lock. | |
7317 | */ | |
7318 | ||
c4028958 | 7319 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 7320 | { |
1ee6dd77 | 7321 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 7322 | struct net_device *dev = sp->dev; |
1da177e4 | 7323 | |
22747d6b FR |
7324 | rtnl_lock(); |
7325 | ||
7326 | if (!netif_running(dev)) | |
7327 | goto out_unlock; | |
7328 | ||
e6a8fee2 | 7329 | s2io_card_down(sp); |
1da177e4 | 7330 | if (s2io_card_up(sp)) { |
d44570e4 | 7331 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name); |
1da177e4 | 7332 | } |
3a3d5756 | 7333 | s2io_wake_all_tx_queue(sp); |
d44570e4 | 7334 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name); |
22747d6b FR |
7335 | out_unlock: |
7336 | rtnl_unlock(); | |
1da177e4 LT |
7337 | } |
7338 | ||
20346722 | 7339 | /** |
7340 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
7341 | * @dev : Pointer to net device structure |
7342 | * Description: | |
7343 | * This function is triggered if the Tx Queue is stopped | |
7344 | * for a pre-defined amount of time when the Interface is still up. | |
7345 | * If the Interface is jammed in such a situation, the hardware is | |
7346 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
7347 | * overcome any problem that might have been caused in the hardware. | |
7348 | * Return value: | |
7349 | * void | |
7350 | */ | |
7351 | ||
7352 | static void s2io_tx_watchdog(struct net_device *dev) | |
7353 | { | |
4cf1653a | 7354 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c | 7355 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
7356 | |
7357 | if (netif_carrier_ok(dev)) { | |
ffb5df6c | 7358 | swstats->watchdog_timer_cnt++; |
1da177e4 | 7359 | schedule_work(&sp->rst_timer_task); |
ffb5df6c | 7360 | swstats->soft_reset_cnt++; |
1da177e4 LT |
7361 | } |
7362 | } | |
7363 | ||
7364 | /** | |
7365 | * rx_osm_handler - To perform some OS related operations on SKB. | |
7366 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
7367 | * @skb : the socket buffer pointer. | |
7368 | * @len : length of the packet | |
7369 | * @cksum : FCS checksum of the frame. | |
7370 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 7371 | * Description: |
b41477f3 | 7372 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
7373 | * some OS related operations on the SKB before passing it to the upper |
7374 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
7375 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
7376 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
7377 | * packet error count, frees the SKB and returns error. | |
7378 | * Return value: | |
7379 | * SUCCESS on success and -1 on failure. | |
7380 | */ | |
1ee6dd77 | 7381 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 7382 | { |
1ee6dd77 | 7383 | struct s2io_nic *sp = ring_data->nic; |
d44570e4 | 7384 | struct net_device *dev = (struct net_device *)ring_data->dev; |
20346722 | 7385 | struct sk_buff *skb = (struct sk_buff *) |
d44570e4 | 7386 | ((unsigned long)rxdp->Host_Control); |
20346722 | 7387 | int ring_no = ring_data->ring_no; |
1da177e4 | 7388 | u16 l3_csum, l4_csum; |
863c11a9 | 7389 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
2e6a684b | 7390 | struct lro *uninitialized_var(lro); |
f9046eb3 | 7391 | u8 err_mask; |
ffb5df6c | 7392 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
da6971d8 | 7393 | |
20346722 | 7394 | skb->dev = dev; |
c92ca04b | 7395 | |
863c11a9 | 7396 | if (err) { |
bd1034f0 | 7397 | /* Check for parity error */ |
d44570e4 | 7398 | if (err & 0x1) |
ffb5df6c | 7399 | swstats->parity_err_cnt++; |
d44570e4 | 7400 | |
f9046eb3 | 7401 | err_mask = err >> 48; |
d44570e4 JP |
7402 | switch (err_mask) { |
7403 | case 1: | |
ffb5df6c | 7404 | swstats->rx_parity_err_cnt++; |
491976b2 SH |
7405 | break; |
7406 | ||
d44570e4 | 7407 | case 2: |
ffb5df6c | 7408 | swstats->rx_abort_cnt++; |
491976b2 SH |
7409 | break; |
7410 | ||
d44570e4 | 7411 | case 3: |
ffb5df6c | 7412 | swstats->rx_parity_abort_cnt++; |
491976b2 SH |
7413 | break; |
7414 | ||
d44570e4 | 7415 | case 4: |
ffb5df6c | 7416 | swstats->rx_rda_fail_cnt++; |
491976b2 SH |
7417 | break; |
7418 | ||
d44570e4 | 7419 | case 5: |
ffb5df6c | 7420 | swstats->rx_unkn_prot_cnt++; |
491976b2 SH |
7421 | break; |
7422 | ||
d44570e4 | 7423 | case 6: |
ffb5df6c | 7424 | swstats->rx_fcs_err_cnt++; |
491976b2 | 7425 | break; |
bd1034f0 | 7426 | |
d44570e4 | 7427 | case 7: |
ffb5df6c | 7428 | swstats->rx_buf_size_err_cnt++; |
491976b2 SH |
7429 | break; |
7430 | ||
d44570e4 | 7431 | case 8: |
ffb5df6c | 7432 | swstats->rx_rxd_corrupt_cnt++; |
491976b2 SH |
7433 | break; |
7434 | ||
d44570e4 | 7435 | case 15: |
ffb5df6c | 7436 | swstats->rx_unkn_err_cnt++; |
491976b2 SH |
7437 | break; |
7438 | } | |
863c11a9 | 7439 | /* |
d44570e4 JP |
7440 | * Drop the packet if bad transfer code. Exception being |
7441 | * 0x5, which could be due to unsupported IPv6 extension header. | |
7442 | * In this case, we let stack handle the packet. | |
7443 | * Note that in this case, since checksum will be incorrect, | |
7444 | * stack will validate the same. | |
7445 | */ | |
f9046eb3 OH |
7446 | if (err_mask != 0x5) { |
7447 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n", | |
d44570e4 | 7448 | dev->name, err_mask); |
dc56e634 | 7449 | dev->stats.rx_crc_errors++; |
ffb5df6c | 7450 | swstats->mem_freed |
491976b2 | 7451 | += skb->truesize; |
863c11a9 | 7452 | dev_kfree_skb(skb); |
0425b46a | 7453 | ring_data->rx_bufs_left -= 1; |
863c11a9 AR |
7454 | rxdp->Host_Control = 0; |
7455 | return 0; | |
7456 | } | |
20346722 | 7457 | } |
1da177e4 | 7458 | |
20346722 | 7459 | rxdp->Host_Control = 0; |
da6971d8 AR |
7460 | if (sp->rxd_mode == RXD_MODE_1) { |
7461 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 7462 | |
da6971d8 | 7463 | skb_put(skb, len); |
6d517a27 | 7464 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
7465 | int get_block = ring_data->rx_curr_get_info.block_index; |
7466 | int get_off = ring_data->rx_curr_get_info.offset; | |
7467 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
7468 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
7469 | unsigned char *buff = skb_push(skb, buf0_len); | |
7470 | ||
1ee6dd77 | 7471 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 | 7472 | memcpy(buff, ba->ba_0, buf0_len); |
6d517a27 | 7473 | skb_put(skb, buf2_len); |
da6971d8 | 7474 | } |
20346722 | 7475 | |
d44570e4 JP |
7476 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && |
7477 | ((!ring_data->lro) || | |
7478 | (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
b437a8cc | 7479 | (dev->features & NETIF_F_RXCSUM)) { |
20346722 | 7480 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); |
1da177e4 LT |
7481 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
7482 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 7483 | /* |
1da177e4 LT |
7484 | * NIC verifies if the Checksum of the received |
7485 | * frame is Ok or not and accordingly returns | |
7486 | * a flag in the RxD. | |
7487 | */ | |
7488 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
0425b46a | 7489 | if (ring_data->lro) { |
06f0c139 | 7490 | u32 tcp_len = 0; |
7d3d0439 RA |
7491 | u8 *tcp; |
7492 | int ret = 0; | |
7493 | ||
0425b46a | 7494 | ret = s2io_club_tcp_session(ring_data, |
d44570e4 JP |
7495 | skb->data, &tcp, |
7496 | &tcp_len, &lro, | |
7497 | rxdp, sp); | |
7d3d0439 | 7498 | switch (ret) { |
d44570e4 JP |
7499 | case 3: /* Begin anew */ |
7500 | lro->parent = skb; | |
7501 | goto aggregate; | |
7502 | case 1: /* Aggregate */ | |
7503 | lro_append_pkt(sp, lro, skb, tcp_len); | |
7504 | goto aggregate; | |
7505 | case 4: /* Flush session */ | |
7506 | lro_append_pkt(sp, lro, skb, tcp_len); | |
7507 | queue_rx_frame(lro->parent, | |
7508 | lro->vlan_tag); | |
7509 | clear_lro_session(lro); | |
ffb5df6c | 7510 | swstats->flush_max_pkts++; |
d44570e4 JP |
7511 | goto aggregate; |
7512 | case 2: /* Flush both */ | |
7513 | lro->parent->data_len = lro->frags_len; | |
ffb5df6c | 7514 | swstats->sending_both++; |
d44570e4 JP |
7515 | queue_rx_frame(lro->parent, |
7516 | lro->vlan_tag); | |
7517 | clear_lro_session(lro); | |
7518 | goto send_up; | |
7519 | case 0: /* sessions exceeded */ | |
7520 | case -1: /* non-TCP or not L2 aggregatable */ | |
7521 | case 5: /* | |
7522 | * First pkt in session not | |
7523 | * L3/L4 aggregatable | |
7524 | */ | |
7525 | break; | |
7526 | default: | |
7527 | DBG_PRINT(ERR_DBG, | |
7528 | "%s: Samadhana!!\n", | |
7529 | __func__); | |
7530 | BUG(); | |
7d3d0439 RA |
7531 | } |
7532 | } | |
1da177e4 | 7533 | } else { |
20346722 | 7534 | /* |
7535 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
7536 | * upper layers deal with it. |
7537 | */ | |
bc8acf2c | 7538 | skb_checksum_none_assert(skb); |
1da177e4 | 7539 | } |
cdb5bf02 | 7540 | } else |
bc8acf2c | 7541 | skb_checksum_none_assert(skb); |
cdb5bf02 | 7542 | |
ffb5df6c | 7543 | swstats->mem_freed += skb->truesize; |
7d3d0439 | 7544 | send_up: |
0c8dfc83 | 7545 | skb_record_rx_queue(skb, ring_no); |
cdb5bf02 | 7546 | queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2)); |
7d3d0439 | 7547 | aggregate: |
0425b46a | 7548 | sp->mac_control.rings[ring_no].rx_bufs_left -= 1; |
1da177e4 LT |
7549 | return SUCCESS; |
7550 | } | |
7551 | ||
7552 | /** | |
7553 | * s2io_link - stops/starts the Tx queue. | |
7554 | * @sp : private member of the device structure, which is a pointer to the | |
7555 | * s2io_nic structure. | |
7556 | * @link : inidicates whether link is UP/DOWN. | |
7557 | * Description: | |
7558 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 | 7559 | * status of the NIC is is down or up. This is called by the Alarm |
7560 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
7561 | * Return value: |
7562 | * void. | |
7563 | */ | |
7564 | ||
d44570e4 | 7565 | static void s2io_link(struct s2io_nic *sp, int link) |
1da177e4 | 7566 | { |
d44570e4 | 7567 | struct net_device *dev = (struct net_device *)sp->dev; |
ffb5df6c | 7568 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
7569 | |
7570 | if (link != sp->last_link_state) { | |
b7c5678f | 7571 | init_tti(sp, link); |
1da177e4 LT |
7572 | if (link == LINK_DOWN) { |
7573 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
3a3d5756 | 7574 | s2io_stop_all_tx_queue(sp); |
1da177e4 | 7575 | netif_carrier_off(dev); |
ffb5df6c JP |
7576 | if (swstats->link_up_cnt) |
7577 | swstats->link_up_time = | |
7578 | jiffies - sp->start_time; | |
7579 | swstats->link_down_cnt++; | |
1da177e4 LT |
7580 | } else { |
7581 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
ffb5df6c JP |
7582 | if (swstats->link_down_cnt) |
7583 | swstats->link_down_time = | |
d44570e4 | 7584 | jiffies - sp->start_time; |
ffb5df6c | 7585 | swstats->link_up_cnt++; |
1da177e4 | 7586 | netif_carrier_on(dev); |
3a3d5756 | 7587 | s2io_wake_all_tx_queue(sp); |
1da177e4 LT |
7588 | } |
7589 | } | |
7590 | sp->last_link_state = link; | |
491976b2 | 7591 | sp->start_time = jiffies; |
1da177e4 LT |
7592 | } |
7593 | ||
20346722 | 7594 | /** |
7595 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
7596 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
7597 | * s2io_nic structure. |
7598 | * Description: | |
7599 | * This function initializes a few of the PCI and PCI-X configuration registers | |
7600 | * with recommended values. | |
7601 | * Return value: | |
7602 | * void | |
7603 | */ | |
7604 | ||
d44570e4 | 7605 | static void s2io_init_pci(struct s2io_nic *sp) |
1da177e4 | 7606 | { |
20346722 | 7607 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
7608 | |
7609 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
7610 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 7611 | &(pcix_cmd)); |
1da177e4 | 7612 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7613 | (pcix_cmd | 1)); |
1da177e4 | 7614 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7615 | &(pcix_cmd)); |
1da177e4 LT |
7616 | |
7617 | /* Set the PErr Response bit in PCI command register. */ | |
7618 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
7619 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
7620 | (pci_cmd | PCI_COMMAND_PARITY)); | |
7621 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
7622 | } |
7623 | ||
3a3d5756 | 7624 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type, |
d44570e4 | 7625 | u8 *dev_multiq) |
9dc737a7 | 7626 | { |
1853e2e1 JM |
7627 | int i; |
7628 | ||
d44570e4 | 7629 | if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) { |
9e39f7c5 | 7630 | DBG_PRINT(ERR_DBG, "Requested number of tx fifos " |
d44570e4 | 7631 | "(%d) not supported\n", tx_fifo_num); |
6cfc482b SH |
7632 | |
7633 | if (tx_fifo_num < 1) | |
7634 | tx_fifo_num = 1; | |
7635 | else | |
7636 | tx_fifo_num = MAX_TX_FIFOS; | |
7637 | ||
9e39f7c5 | 7638 | DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num); |
9dc737a7 | 7639 | } |
2fda096d | 7640 | |
6cfc482b | 7641 | if (multiq) |
3a3d5756 | 7642 | *dev_multiq = multiq; |
6cfc482b SH |
7643 | |
7644 | if (tx_steering_type && (1 == tx_fifo_num)) { | |
7645 | if (tx_steering_type != TX_DEFAULT_STEERING) | |
7646 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 | 7647 | "Tx steering is not supported with " |
d44570e4 | 7648 | "one fifo. Disabling Tx steering.\n"); |
6cfc482b SH |
7649 | tx_steering_type = NO_STEERING; |
7650 | } | |
7651 | ||
7652 | if ((tx_steering_type < NO_STEERING) || | |
d44570e4 JP |
7653 | (tx_steering_type > TX_DEFAULT_STEERING)) { |
7654 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
7655 | "Requested transmit steering not supported\n"); |
7656 | DBG_PRINT(ERR_DBG, "Disabling transmit steering\n"); | |
6cfc482b | 7657 | tx_steering_type = NO_STEERING; |
3a3d5756 SH |
7658 | } |
7659 | ||
0425b46a | 7660 | if (rx_ring_num > MAX_RX_RINGS) { |
d44570e4 | 7661 | DBG_PRINT(ERR_DBG, |
9e39f7c5 JP |
7662 | "Requested number of rx rings not supported\n"); |
7663 | DBG_PRINT(ERR_DBG, "Default to %d rx rings\n", | |
d44570e4 | 7664 | MAX_RX_RINGS); |
0425b46a | 7665 | rx_ring_num = MAX_RX_RINGS; |
9dc737a7 | 7666 | } |
0425b46a | 7667 | |
eccb8628 | 7668 | if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) { |
9e39f7c5 | 7669 | DBG_PRINT(ERR_DBG, "Wrong intr_type requested. " |
9dc737a7 AR |
7670 | "Defaulting to INTA\n"); |
7671 | *dev_intr_type = INTA; | |
7672 | } | |
596c5c97 | 7673 | |
9dc737a7 | 7674 | if ((*dev_intr_type == MSI_X) && |
d44570e4 JP |
7675 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && |
7676 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
9e39f7c5 | 7677 | DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. " |
d44570e4 | 7678 | "Defaulting to INTA\n"); |
9dc737a7 AR |
7679 | *dev_intr_type = INTA; |
7680 | } | |
fb6a825b | 7681 | |
6d517a27 | 7682 | if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { |
9e39f7c5 JP |
7683 | DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n"); |
7684 | DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n"); | |
6d517a27 | 7685 | rx_ring_mode = 1; |
9dc737a7 | 7686 | } |
1853e2e1 JM |
7687 | |
7688 | for (i = 0; i < MAX_RX_RINGS; i++) | |
7689 | if (rx_ring_sz[i] > MAX_RX_BLOCKS_PER_RING) { | |
7690 | DBG_PRINT(ERR_DBG, "Requested rx ring size not " | |
7691 | "supported\nDefaulting to %d\n", | |
7692 | MAX_RX_BLOCKS_PER_RING); | |
7693 | rx_ring_sz[i] = MAX_RX_BLOCKS_PER_RING; | |
7694 | } | |
7695 | ||
9dc737a7 AR |
7696 | return SUCCESS; |
7697 | } | |
7698 | ||
9fc93a41 SS |
7699 | /** |
7700 | * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS | |
7701 | * or Traffic class respectively. | |
b7c5678f | 7702 | * @nic: device private variable |
9fc93a41 SS |
7703 | * Description: The function configures the receive steering to |
7704 | * desired receive ring. | |
7705 | * Return Value: SUCCESS on success and | |
7706 | * '-1' on failure (endian settings incorrect). | |
7707 | */ | |
7708 | static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring) | |
7709 | { | |
7710 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
7711 | register u64 val64 = 0; | |
7712 | ||
7713 | if (ds_codepoint > 63) | |
7714 | return FAILURE; | |
7715 | ||
7716 | val64 = RTS_DS_MEM_DATA(ring); | |
7717 | writeq(val64, &bar0->rts_ds_mem_data); | |
7718 | ||
7719 | val64 = RTS_DS_MEM_CTRL_WE | | |
7720 | RTS_DS_MEM_CTRL_STROBE_NEW_CMD | | |
7721 | RTS_DS_MEM_CTRL_OFFSET(ds_codepoint); | |
7722 | ||
7723 | writeq(val64, &bar0->rts_ds_mem_ctrl); | |
7724 | ||
7725 | return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl, | |
d44570e4 JP |
7726 | RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED, |
7727 | S2IO_BIT_RESET); | |
9fc93a41 SS |
7728 | } |
7729 | ||
04025095 SH |
7730 | static const struct net_device_ops s2io_netdev_ops = { |
7731 | .ndo_open = s2io_open, | |
7732 | .ndo_stop = s2io_close, | |
7733 | .ndo_get_stats = s2io_get_stats, | |
7734 | .ndo_start_xmit = s2io_xmit, | |
7735 | .ndo_validate_addr = eth_validate_addr, | |
7736 | .ndo_set_multicast_list = s2io_set_multicast, | |
7737 | .ndo_do_ioctl = s2io_ioctl, | |
7738 | .ndo_set_mac_address = s2io_set_mac_addr, | |
7739 | .ndo_change_mtu = s2io_change_mtu, | |
b437a8cc | 7740 | .ndo_set_features = s2io_set_features, |
04025095 SH |
7741 | .ndo_vlan_rx_register = s2io_vlan_rx_register, |
7742 | .ndo_vlan_rx_kill_vid = s2io_vlan_rx_kill_vid, | |
7743 | .ndo_tx_timeout = s2io_tx_watchdog, | |
7744 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
7745 | .ndo_poll_controller = s2io_netpoll, | |
7746 | #endif | |
7747 | }; | |
7748 | ||
1da177e4 | 7749 | /** |
20346722 | 7750 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
7751 | * @pdev : structure containing the PCI related information of the device. |
7752 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
7753 | * Description: | |
7754 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 | 7755 | * All OS related initialization including memory and device structure and |
7756 | * initlaization of the device private variable is done. Also the swapper | |
7757 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
7758 | * registers of the device. |
7759 | * Return value: | |
7760 | * returns 0 on success and negative on failure. | |
7761 | */ | |
7762 | ||
7763 | static int __devinit | |
7764 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
7765 | { | |
1ee6dd77 | 7766 | struct s2io_nic *sp; |
1da177e4 | 7767 | struct net_device *dev; |
1da177e4 | 7768 | int i, j, ret; |
f957bcf0 | 7769 | int dma_flag = false; |
1da177e4 LT |
7770 | u32 mac_up, mac_down; |
7771 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 7772 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 7773 | u16 subid; |
1da177e4 | 7774 | struct config_param *config; |
ffb5df6c | 7775 | struct mac_info *mac_control; |
541ae68f | 7776 | int mode; |
cc6e7c44 | 7777 | u8 dev_intr_type = intr_type; |
3a3d5756 | 7778 | u8 dev_multiq = 0; |
1da177e4 | 7779 | |
3a3d5756 SH |
7780 | ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq); |
7781 | if (ret) | |
9dc737a7 | 7782 | return ret; |
1da177e4 | 7783 | |
d44570e4 JP |
7784 | ret = pci_enable_device(pdev); |
7785 | if (ret) { | |
1da177e4 | 7786 | DBG_PRINT(ERR_DBG, |
9e39f7c5 | 7787 | "%s: pci_enable_device failed\n", __func__); |
1da177e4 LT |
7788 | return ret; |
7789 | } | |
7790 | ||
6a35528a | 7791 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
9e39f7c5 | 7792 | DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__); |
f957bcf0 | 7793 | dma_flag = true; |
d44570e4 | 7794 | if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { |
1da177e4 | 7795 | DBG_PRINT(ERR_DBG, |
d44570e4 JP |
7796 | "Unable to obtain 64bit DMA " |
7797 | "for consistent allocations\n"); | |
1da177e4 LT |
7798 | pci_disable_device(pdev); |
7799 | return -ENOMEM; | |
7800 | } | |
284901a9 | 7801 | } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { |
9e39f7c5 | 7802 | DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__); |
1da177e4 LT |
7803 | } else { |
7804 | pci_disable_device(pdev); | |
7805 | return -ENOMEM; | |
7806 | } | |
d44570e4 JP |
7807 | ret = pci_request_regions(pdev, s2io_driver_name); |
7808 | if (ret) { | |
9e39f7c5 | 7809 | DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n", |
d44570e4 | 7810 | __func__, ret); |
eccb8628 VP |
7811 | pci_disable_device(pdev); |
7812 | return -ENODEV; | |
1da177e4 | 7813 | } |
3a3d5756 | 7814 | if (dev_multiq) |
6cfc482b | 7815 | dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num); |
3a3d5756 | 7816 | else |
b19fa1fa | 7817 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 LT |
7818 | if (dev == NULL) { |
7819 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
7820 | pci_disable_device(pdev); | |
7821 | pci_release_regions(pdev); | |
7822 | return -ENODEV; | |
7823 | } | |
7824 | ||
7825 | pci_set_master(pdev); | |
7826 | pci_set_drvdata(pdev, dev); | |
1da177e4 LT |
7827 | SET_NETDEV_DEV(dev, &pdev->dev); |
7828 | ||
7829 | /* Private member variable initialized to s2io NIC structure */ | |
4cf1653a | 7830 | sp = netdev_priv(dev); |
1da177e4 LT |
7831 | sp->dev = dev; |
7832 | sp->pdev = pdev; | |
1da177e4 | 7833 | sp->high_dma_flag = dma_flag; |
f957bcf0 | 7834 | sp->device_enabled_once = false; |
da6971d8 AR |
7835 | if (rx_ring_mode == 1) |
7836 | sp->rxd_mode = RXD_MODE_1; | |
7837 | if (rx_ring_mode == 2) | |
7838 | sp->rxd_mode = RXD_MODE_3B; | |
da6971d8 | 7839 | |
eaae7f72 | 7840 | sp->config.intr_type = dev_intr_type; |
1da177e4 | 7841 | |
541ae68f | 7842 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
d44570e4 | 7843 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) |
541ae68f | 7844 | sp->device_type = XFRAME_II_DEVICE; |
7845 | else | |
7846 | sp->device_type = XFRAME_I_DEVICE; | |
7847 | ||
6aa20a22 | 7848 | |
1da177e4 LT |
7849 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
7850 | s2io_init_pci(sp); | |
7851 | ||
20346722 | 7852 | /* |
1da177e4 | 7853 | * Setting the device configuration parameters. |
20346722 | 7854 | * Most of these parameters can be specified by the user during |
7855 | * module insertion as they are module loadable parameters. If | |
7856 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
7857 | * are initialized with default values. |
7858 | */ | |
1da177e4 | 7859 | config = &sp->config; |
ffb5df6c | 7860 | mac_control = &sp->mac_control; |
1da177e4 | 7861 | |
596c5c97 | 7862 | config->napi = napi; |
6cfc482b | 7863 | config->tx_steering_type = tx_steering_type; |
596c5c97 | 7864 | |
1da177e4 | 7865 | /* Tx side parameters. */ |
6cfc482b SH |
7866 | if (config->tx_steering_type == TX_PRIORITY_STEERING) |
7867 | config->tx_fifo_num = MAX_TX_FIFOS; | |
7868 | else | |
7869 | config->tx_fifo_num = tx_fifo_num; | |
7870 | ||
7871 | /* Initialize the fifos used for tx steering */ | |
7872 | if (config->tx_fifo_num < 5) { | |
d44570e4 JP |
7873 | if (config->tx_fifo_num == 1) |
7874 | sp->total_tcp_fifos = 1; | |
7875 | else | |
7876 | sp->total_tcp_fifos = config->tx_fifo_num - 1; | |
7877 | sp->udp_fifo_idx = config->tx_fifo_num - 1; | |
7878 | sp->total_udp_fifos = 1; | |
7879 | sp->other_fifo_idx = sp->total_tcp_fifos - 1; | |
6cfc482b SH |
7880 | } else { |
7881 | sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM - | |
d44570e4 | 7882 | FIFO_OTHER_MAX_NUM); |
6cfc482b SH |
7883 | sp->udp_fifo_idx = sp->total_tcp_fifos; |
7884 | sp->total_udp_fifos = FIFO_UDP_MAX_NUM; | |
7885 | sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM; | |
7886 | } | |
7887 | ||
3a3d5756 | 7888 | config->multiq = dev_multiq; |
6cfc482b | 7889 | for (i = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
7890 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
7891 | ||
7892 | tx_cfg->fifo_len = tx_fifo_len[i]; | |
7893 | tx_cfg->fifo_priority = i; | |
1da177e4 LT |
7894 | } |
7895 | ||
20346722 | 7896 | /* mapping the QoS priority to the configured fifos */ |
7897 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
3a3d5756 | 7898 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i]; |
20346722 | 7899 | |
6cfc482b SH |
7900 | /* map the hashing selector table to the configured fifos */ |
7901 | for (i = 0; i < config->tx_fifo_num; i++) | |
7902 | sp->fifo_selector[i] = fifo_selector[i]; | |
7903 | ||
7904 | ||
1da177e4 LT |
7905 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
7906 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
7907 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
7908 | ||
7909 | tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
7910 | if (tx_cfg->fifo_len < 65) { | |
1da177e4 LT |
7911 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; |
7912 | break; | |
7913 | } | |
7914 | } | |
fed5eccd AR |
7915 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
7916 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
7917 | |
7918 | /* Rx side parameters. */ | |
1da177e4 | 7919 | config->rx_ring_num = rx_ring_num; |
0425b46a | 7920 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 JP |
7921 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
7922 | struct ring_info *ring = &mac_control->rings[i]; | |
7923 | ||
7924 | rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1); | |
7925 | rx_cfg->ring_priority = i; | |
7926 | ring->rx_bufs_left = 0; | |
7927 | ring->rxd_mode = sp->rxd_mode; | |
7928 | ring->rxd_count = rxd_count[sp->rxd_mode]; | |
7929 | ring->pdev = sp->pdev; | |
7930 | ring->dev = sp->dev; | |
1da177e4 LT |
7931 | } |
7932 | ||
7933 | for (i = 0; i < rx_ring_num; i++) { | |
13d866a9 JP |
7934 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
7935 | ||
7936 | rx_cfg->ring_org = RING_ORG_BUFF1; | |
7937 | rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
1da177e4 LT |
7938 | } |
7939 | ||
7940 | /* Setting Mac Control parameters */ | |
7941 | mac_control->rmac_pause_time = rmac_pause_time; | |
7942 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
7943 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
7944 | ||
7945 | ||
1da177e4 LT |
7946 | /* initialize the shared memory used by the NIC and the host */ |
7947 | if (init_shared_mem(sp)) { | |
d44570e4 | 7948 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name); |
1da177e4 LT |
7949 | ret = -ENOMEM; |
7950 | goto mem_alloc_failed; | |
7951 | } | |
7952 | ||
275f165f | 7953 | sp->bar0 = pci_ioremap_bar(pdev, 0); |
1da177e4 | 7954 | if (!sp->bar0) { |
19a60522 | 7955 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
7956 | dev->name); |
7957 | ret = -ENOMEM; | |
7958 | goto bar0_remap_failed; | |
7959 | } | |
7960 | ||
275f165f | 7961 | sp->bar1 = pci_ioremap_bar(pdev, 2); |
1da177e4 | 7962 | if (!sp->bar1) { |
19a60522 | 7963 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
7964 | dev->name); |
7965 | ret = -ENOMEM; | |
7966 | goto bar1_remap_failed; | |
7967 | } | |
7968 | ||
7969 | dev->irq = pdev->irq; | |
d44570e4 | 7970 | dev->base_addr = (unsigned long)sp->bar0; |
1da177e4 LT |
7971 | |
7972 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
7973 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
d44570e4 JP |
7974 | mac_control->tx_FIFO_start[j] = |
7975 | (struct TxFIFO_element __iomem *) | |
7976 | (sp->bar1 + (j * 0x00020000)); | |
1da177e4 LT |
7977 | } |
7978 | ||
7979 | /* Driver entry points */ | |
04025095 | 7980 | dev->netdev_ops = &s2io_netdev_ops; |
1da177e4 | 7981 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); |
b437a8cc MM |
7982 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | |
7983 | NETIF_F_TSO | NETIF_F_TSO6 | | |
7984 | NETIF_F_RXCSUM | NETIF_F_LRO; | |
7985 | dev->features |= dev->hw_features | | |
7986 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
7987 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7988 | dev->hw_features |= NETIF_F_UFO; | |
7989 | if (ufo) | |
7990 | dev->features |= NETIF_F_UFO; | |
7991 | } | |
f957bcf0 | 7992 | if (sp->high_dma_flag == true) |
1da177e4 | 7993 | dev->features |= NETIF_F_HIGHDMA; |
1da177e4 | 7994 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; |
c4028958 DH |
7995 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
7996 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 7997 | |
e960fc5c | 7998 | pci_save_state(sp->pdev); |
1da177e4 LT |
7999 | |
8000 | /* Setting swapper control on the NIC, for proper reset operation */ | |
8001 | if (s2io_set_swapper(sp)) { | |
9e39f7c5 | 8002 | DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n", |
1da177e4 LT |
8003 | dev->name); |
8004 | ret = -EAGAIN; | |
8005 | goto set_swap_failed; | |
8006 | } | |
8007 | ||
541ae68f | 8008 | /* Verify if the Herc works on the slot its placed into */ |
8009 | if (sp->device_type & XFRAME_II_DEVICE) { | |
8010 | mode = s2io_verify_pci_mode(sp); | |
8011 | if (mode < 0) { | |
9e39f7c5 JP |
8012 | DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n", |
8013 | __func__); | |
541ae68f | 8014 | ret = -EBADSLT; |
8015 | goto set_swap_failed; | |
8016 | } | |
8017 | } | |
8018 | ||
f61e0a35 SH |
8019 | if (sp->config.intr_type == MSI_X) { |
8020 | sp->num_entries = config->rx_ring_num + 1; | |
8021 | ret = s2io_enable_msi_x(sp); | |
8022 | ||
8023 | if (!ret) { | |
8024 | ret = s2io_test_msi(sp); | |
8025 | /* rollback MSI-X, will re-enable during add_isr() */ | |
8026 | remove_msix_isr(sp); | |
8027 | } | |
8028 | if (ret) { | |
8029 | ||
8030 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 | 8031 | "MSI-X requested but failed to enable\n"); |
f61e0a35 SH |
8032 | sp->config.intr_type = INTA; |
8033 | } | |
8034 | } | |
8035 | ||
8036 | if (config->intr_type == MSI_X) { | |
13d866a9 JP |
8037 | for (i = 0; i < config->rx_ring_num ; i++) { |
8038 | struct ring_info *ring = &mac_control->rings[i]; | |
8039 | ||
8040 | netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64); | |
8041 | } | |
f61e0a35 SH |
8042 | } else { |
8043 | netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64); | |
8044 | } | |
8045 | ||
541ae68f | 8046 | /* Not needed for Herc */ |
8047 | if (sp->device_type & XFRAME_I_DEVICE) { | |
8048 | /* | |
8049 | * Fix for all "FFs" MAC address problems observed on | |
8050 | * Alpha platforms | |
8051 | */ | |
8052 | fix_mac_address(sp); | |
8053 | s2io_reset(sp); | |
8054 | } | |
1da177e4 LT |
8055 | |
8056 | /* | |
1da177e4 LT |
8057 | * MAC address initialization. |
8058 | * For now only one mac address will be read and used. | |
8059 | */ | |
8060 | bar0 = sp->bar0; | |
8061 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
d44570e4 | 8062 | RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET); |
1da177e4 | 8063 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
c92ca04b | 8064 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
8065 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
8066 | S2IO_BIT_RESET); | |
1da177e4 | 8067 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
d44570e4 | 8068 | mac_down = (u32)tmp64; |
1da177e4 LT |
8069 | mac_up = (u32) (tmp64 >> 32); |
8070 | ||
1da177e4 LT |
8071 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); |
8072 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
8073 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
8074 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
8075 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
8076 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
8077 | ||
1da177e4 LT |
8078 | /* Set the factory defined MAC address initially */ |
8079 | dev->addr_len = ETH_ALEN; | |
8080 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
2fd37688 | 8081 | memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN); |
1da177e4 | 8082 | |
faa4f796 SH |
8083 | /* initialize number of multicast & unicast MAC entries variables */ |
8084 | if (sp->device_type == XFRAME_I_DEVICE) { | |
8085 | config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES; | |
8086 | config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES; | |
8087 | config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET; | |
8088 | } else if (sp->device_type == XFRAME_II_DEVICE) { | |
8089 | config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES; | |
8090 | config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES; | |
8091 | config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET; | |
8092 | } | |
8093 | ||
8094 | /* store mac addresses from CAM to s2io_nic structure */ | |
8095 | do_s2io_store_unicast_mc(sp); | |
8096 | ||
f61e0a35 SH |
8097 | /* Configure MSIX vector for number of rings configured plus one */ |
8098 | if ((sp->device_type == XFRAME_II_DEVICE) && | |
d44570e4 | 8099 | (config->intr_type == MSI_X)) |
f61e0a35 SH |
8100 | sp->num_entries = config->rx_ring_num + 1; |
8101 | ||
d44570e4 | 8102 | /* Store the values of the MSIX table in the s2io_nic structure */ |
c77dd43e | 8103 | store_xmsi_data(sp); |
b41477f3 AR |
8104 | /* reset Nic and bring it to known state */ |
8105 | s2io_reset(sp); | |
8106 | ||
1da177e4 | 8107 | /* |
99993af6 | 8108 | * Initialize link state flags |
541ae68f | 8109 | * and the card state parameter |
1da177e4 | 8110 | */ |
92b84437 | 8111 | sp->state = 0; |
1da177e4 | 8112 | |
1da177e4 | 8113 | /* Initialize spinlocks */ |
13d866a9 JP |
8114 | for (i = 0; i < sp->config.tx_fifo_num; i++) { |
8115 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
8116 | ||
8117 | spin_lock_init(&fifo->tx_lock); | |
8118 | } | |
db874e65 | 8119 | |
20346722 | 8120 | /* |
8121 | * SXE-002: Configure link and activity LED to init state | |
8122 | * on driver load. | |
1da177e4 LT |
8123 | */ |
8124 | subid = sp->pdev->subsystem_device; | |
8125 | if ((subid & 0xFF) >= 0x07) { | |
8126 | val64 = readq(&bar0->gpio_control); | |
8127 | val64 |= 0x0000800000000000ULL; | |
8128 | writeq(val64, &bar0->gpio_control); | |
8129 | val64 = 0x0411040400000000ULL; | |
d44570e4 | 8130 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
8131 | val64 = readq(&bar0->gpio_control); |
8132 | } | |
8133 | ||
8134 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
8135 | ||
8136 | if (register_netdev(dev)) { | |
8137 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
8138 | ret = -ENODEV; | |
8139 | goto register_failed; | |
8140 | } | |
9dc737a7 | 8141 | s2io_vpd_read(sp); |
926bd900 | 8142 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n"); |
d44570e4 | 8143 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name, |
44c10138 | 8144 | sp->product_name, pdev->revision); |
b41477f3 AR |
8145 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, |
8146 | s2io_driver_version); | |
9e39f7c5 JP |
8147 | DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr); |
8148 | DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num); | |
9dc737a7 | 8149 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 8150 | mode = s2io_print_pci_mode(sp); |
541ae68f | 8151 | if (mode < 0) { |
541ae68f | 8152 | ret = -EBADSLT; |
9dc737a7 | 8153 | unregister_netdev(dev); |
541ae68f | 8154 | goto set_swap_failed; |
8155 | } | |
541ae68f | 8156 | } |
d44570e4 JP |
8157 | switch (sp->rxd_mode) { |
8158 | case RXD_MODE_1: | |
8159 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
8160 | dev->name); | |
8161 | break; | |
8162 | case RXD_MODE_3B: | |
8163 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
8164 | dev->name); | |
8165 | break; | |
9dc737a7 | 8166 | } |
db874e65 | 8167 | |
f61e0a35 SH |
8168 | switch (sp->config.napi) { |
8169 | case 0: | |
8170 | DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name); | |
8171 | break; | |
8172 | case 1: | |
db874e65 | 8173 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); |
f61e0a35 SH |
8174 | break; |
8175 | } | |
3a3d5756 SH |
8176 | |
8177 | DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name, | |
d44570e4 | 8178 | sp->config.tx_fifo_num); |
3a3d5756 | 8179 | |
0425b46a SH |
8180 | DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name, |
8181 | sp->config.rx_ring_num); | |
8182 | ||
d44570e4 JP |
8183 | switch (sp->config.intr_type) { |
8184 | case INTA: | |
8185 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
8186 | break; | |
8187 | case MSI_X: | |
8188 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
8189 | break; | |
9dc737a7 | 8190 | } |
3a3d5756 | 8191 | if (sp->config.multiq) { |
13d866a9 JP |
8192 | for (i = 0; i < sp->config.tx_fifo_num; i++) { |
8193 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
8194 | ||
8195 | fifo->multiq = config->multiq; | |
8196 | } | |
3a3d5756 | 8197 | DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n", |
d44570e4 | 8198 | dev->name); |
3a3d5756 SH |
8199 | } else |
8200 | DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n", | |
d44570e4 | 8201 | dev->name); |
3a3d5756 | 8202 | |
6cfc482b SH |
8203 | switch (sp->config.tx_steering_type) { |
8204 | case NO_STEERING: | |
d44570e4 JP |
8205 | DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n", |
8206 | dev->name); | |
8207 | break; | |
6cfc482b | 8208 | case TX_PRIORITY_STEERING: |
d44570e4 JP |
8209 | DBG_PRINT(ERR_DBG, |
8210 | "%s: Priority steering enabled for transmit\n", | |
8211 | dev->name); | |
6cfc482b SH |
8212 | break; |
8213 | case TX_DEFAULT_STEERING: | |
d44570e4 JP |
8214 | DBG_PRINT(ERR_DBG, |
8215 | "%s: Default steering enabled for transmit\n", | |
8216 | dev->name); | |
6cfc482b SH |
8217 | } |
8218 | ||
f0c54ace AW |
8219 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", |
8220 | dev->name); | |
db874e65 | 8221 | if (ufo) |
d44570e4 JP |
8222 | DBG_PRINT(ERR_DBG, |
8223 | "%s: UDP Fragmentation Offload(UFO) enabled\n", | |
8224 | dev->name); | |
7ba013ac | 8225 | /* Initialize device name */ |
9dc737a7 | 8226 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 8227 | |
cd0fce03 BL |
8228 | if (vlan_tag_strip) |
8229 | sp->vlan_strip_flag = 1; | |
8230 | else | |
8231 | sp->vlan_strip_flag = 0; | |
8232 | ||
20346722 | 8233 | /* |
8234 | * Make Link state as off at this point, when the Link change | |
8235 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
8236 | * the right state. |
8237 | */ | |
8238 | netif_carrier_off(dev); | |
1da177e4 LT |
8239 | |
8240 | return 0; | |
8241 | ||
d44570e4 JP |
8242 | register_failed: |
8243 | set_swap_failed: | |
1da177e4 | 8244 | iounmap(sp->bar1); |
d44570e4 | 8245 | bar1_remap_failed: |
1da177e4 | 8246 | iounmap(sp->bar0); |
d44570e4 JP |
8247 | bar0_remap_failed: |
8248 | mem_alloc_failed: | |
1da177e4 LT |
8249 | free_shared_mem(sp); |
8250 | pci_disable_device(pdev); | |
eccb8628 | 8251 | pci_release_regions(pdev); |
1da177e4 LT |
8252 | pci_set_drvdata(pdev, NULL); |
8253 | free_netdev(dev); | |
8254 | ||
8255 | return ret; | |
8256 | } | |
8257 | ||
8258 | /** | |
20346722 | 8259 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 8260 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 8261 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 8262 | * PCI device and free up all resource held up by the device. This could |
20346722 | 8263 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
8264 | * from memory. |
8265 | */ | |
8266 | ||
8267 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
8268 | { | |
a31ff388 | 8269 | struct net_device *dev = pci_get_drvdata(pdev); |
1ee6dd77 | 8270 | struct s2io_nic *sp; |
1da177e4 LT |
8271 | |
8272 | if (dev == NULL) { | |
8273 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
8274 | return; | |
8275 | } | |
8276 | ||
4cf1653a | 8277 | sp = netdev_priv(dev); |
23f333a2 TH |
8278 | |
8279 | cancel_work_sync(&sp->rst_timer_task); | |
8280 | cancel_work_sync(&sp->set_link_task); | |
8281 | ||
1da177e4 LT |
8282 | unregister_netdev(dev); |
8283 | ||
8284 | free_shared_mem(sp); | |
8285 | iounmap(sp->bar0); | |
8286 | iounmap(sp->bar1); | |
eccb8628 | 8287 | pci_release_regions(pdev); |
1da177e4 | 8288 | pci_set_drvdata(pdev, NULL); |
1da177e4 | 8289 | free_netdev(dev); |
19a60522 | 8290 | pci_disable_device(pdev); |
1da177e4 LT |
8291 | } |
8292 | ||
8293 | /** | |
8294 | * s2io_starter - Entry point for the driver | |
8295 | * Description: This function is the entry point for the driver. It verifies | |
8296 | * the module loadable parameters and initializes PCI configuration space. | |
8297 | */ | |
8298 | ||
43b7c451 | 8299 | static int __init s2io_starter(void) |
1da177e4 | 8300 | { |
29917620 | 8301 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
8302 | } |
8303 | ||
8304 | /** | |
20346722 | 8305 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
8306 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
8307 | */ | |
8308 | ||
372cc597 | 8309 | static __exit void s2io_closer(void) |
1da177e4 LT |
8310 | { |
8311 | pci_unregister_driver(&s2io_driver); | |
8312 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
8313 | } | |
8314 | ||
8315 | module_init(s2io_starter); | |
8316 | module_exit(s2io_closer); | |
7d3d0439 | 8317 | |
6aa20a22 | 8318 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
d44570e4 JP |
8319 | struct tcphdr **tcp, struct RxD_t *rxdp, |
8320 | struct s2io_nic *sp) | |
7d3d0439 RA |
8321 | { |
8322 | int ip_off; | |
8323 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
8324 | ||
8325 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
d44570e4 JP |
8326 | DBG_PRINT(INIT_DBG, |
8327 | "%s: Non-TCP frames not supported for LRO\n", | |
b39d66a8 | 8328 | __func__); |
7d3d0439 RA |
8329 | return -1; |
8330 | } | |
8331 | ||
cdb5bf02 | 8332 | /* Checking for DIX type or DIX type with VLAN */ |
d44570e4 | 8333 | if ((l2_type == 0) || (l2_type == 4)) { |
cdb5bf02 SH |
8334 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; |
8335 | /* | |
8336 | * If vlan stripping is disabled and the frame is VLAN tagged, | |
8337 | * shift the offset by the VLAN header size bytes. | |
8338 | */ | |
cd0fce03 | 8339 | if ((!sp->vlan_strip_flag) && |
d44570e4 | 8340 | (rxdp->Control_1 & RXD_FRAME_VLAN_TAG)) |
cdb5bf02 SH |
8341 | ip_off += HEADER_VLAN_SIZE; |
8342 | } else { | |
7d3d0439 | 8343 | /* LLC, SNAP etc are considered non-mergeable */ |
cdb5bf02 | 8344 | return -1; |
7d3d0439 RA |
8345 | } |
8346 | ||
8347 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
8348 | ip_len = (u8)((*ip)->ihl); | |
8349 | ip_len <<= 2; | |
8350 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
8351 | ||
8352 | return 0; | |
8353 | } | |
8354 | ||
1ee6dd77 | 8355 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
8356 | struct tcphdr *tcp) |
8357 | { | |
d44570e4 JP |
8358 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
8359 | if ((lro->iph->saddr != ip->saddr) || | |
8360 | (lro->iph->daddr != ip->daddr) || | |
8361 | (lro->tcph->source != tcp->source) || | |
8362 | (lro->tcph->dest != tcp->dest)) | |
7d3d0439 RA |
8363 | return -1; |
8364 | return 0; | |
8365 | } | |
8366 | ||
8367 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
8368 | { | |
d44570e4 | 8369 | return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2); |
7d3d0439 RA |
8370 | } |
8371 | ||
1ee6dd77 | 8372 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
d44570e4 JP |
8373 | struct iphdr *ip, struct tcphdr *tcp, |
8374 | u32 tcp_pyld_len, u16 vlan_tag) | |
7d3d0439 | 8375 | { |
d44570e4 | 8376 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8377 | lro->l2h = l2h; |
8378 | lro->iph = ip; | |
8379 | lro->tcph = tcp; | |
8380 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
c8855953 | 8381 | lro->tcp_ack = tcp->ack_seq; |
7d3d0439 RA |
8382 | lro->sg_num = 1; |
8383 | lro->total_len = ntohs(ip->tot_len); | |
8384 | lro->frags_len = 0; | |
cdb5bf02 | 8385 | lro->vlan_tag = vlan_tag; |
6aa20a22 | 8386 | /* |
d44570e4 JP |
8387 | * Check if we saw TCP timestamp. |
8388 | * Other consistency checks have already been done. | |
8389 | */ | |
7d3d0439 | 8390 | if (tcp->doff == 8) { |
c8855953 SR |
8391 | __be32 *ptr; |
8392 | ptr = (__be32 *)(tcp+1); | |
7d3d0439 | 8393 | lro->saw_ts = 1; |
c8855953 | 8394 | lro->cur_tsval = ntohl(*(ptr+1)); |
7d3d0439 RA |
8395 | lro->cur_tsecr = *(ptr+2); |
8396 | } | |
8397 | lro->in_use = 1; | |
8398 | } | |
8399 | ||
1ee6dd77 | 8400 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
8401 | { |
8402 | struct iphdr *ip = lro->iph; | |
8403 | struct tcphdr *tcp = lro->tcph; | |
bd4f3ae1 | 8404 | __sum16 nchk; |
ffb5df6c JP |
8405 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
8406 | ||
d44570e4 | 8407 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8408 | |
8409 | /* Update L3 header */ | |
8410 | ip->tot_len = htons(lro->total_len); | |
8411 | ip->check = 0; | |
8412 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
8413 | ip->check = nchk; | |
8414 | ||
8415 | /* Update L4 header */ | |
8416 | tcp->ack_seq = lro->tcp_ack; | |
8417 | tcp->window = lro->window; | |
8418 | ||
8419 | /* Update tsecr field if this session has timestamps enabled */ | |
8420 | if (lro->saw_ts) { | |
c8855953 | 8421 | __be32 *ptr = (__be32 *)(tcp + 1); |
7d3d0439 RA |
8422 | *(ptr+2) = lro->cur_tsecr; |
8423 | } | |
8424 | ||
8425 | /* Update counters required for calculation of | |
8426 | * average no. of packets aggregated. | |
8427 | */ | |
ffb5df6c JP |
8428 | swstats->sum_avg_pkts_aggregated += lro->sg_num; |
8429 | swstats->num_aggregations++; | |
7d3d0439 RA |
8430 | } |
8431 | ||
1ee6dd77 | 8432 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
d44570e4 | 8433 | struct tcphdr *tcp, u32 l4_pyld) |
7d3d0439 | 8434 | { |
d44570e4 | 8435 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8436 | lro->total_len += l4_pyld; |
8437 | lro->frags_len += l4_pyld; | |
8438 | lro->tcp_next_seq += l4_pyld; | |
8439 | lro->sg_num++; | |
8440 | ||
8441 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
8442 | lro->tcp_ack = tcp->ack_seq; | |
8443 | lro->window = tcp->window; | |
6aa20a22 | 8444 | |
7d3d0439 | 8445 | if (lro->saw_ts) { |
c8855953 | 8446 | __be32 *ptr; |
7d3d0439 | 8447 | /* Update tsecr and tsval from this packet */ |
c8855953 SR |
8448 | ptr = (__be32 *)(tcp+1); |
8449 | lro->cur_tsval = ntohl(*(ptr+1)); | |
7d3d0439 RA |
8450 | lro->cur_tsecr = *(ptr + 2); |
8451 | } | |
8452 | } | |
8453 | ||
1ee6dd77 | 8454 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
8455 | struct tcphdr *tcp, u32 tcp_pyld_len) |
8456 | { | |
7d3d0439 RA |
8457 | u8 *ptr; |
8458 | ||
d44570e4 | 8459 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
79dc1901 | 8460 | |
7d3d0439 RA |
8461 | if (!tcp_pyld_len) { |
8462 | /* Runt frame or a pure ack */ | |
8463 | return -1; | |
8464 | } | |
8465 | ||
8466 | if (ip->ihl != 5) /* IP has options */ | |
8467 | return -1; | |
8468 | ||
75c30b13 AR |
8469 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
8470 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
8471 | return -1; | |
8472 | ||
8473 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
d44570e4 JP |
8474 | if (tcp->urg || tcp->psh || tcp->rst || |
8475 | tcp->syn || tcp->fin || | |
8476 | tcp->ece || tcp->cwr || !tcp->ack) { | |
7d3d0439 RA |
8477 | /* |
8478 | * Currently recognize only the ack control word and | |
8479 | * any other control field being set would result in | |
8480 | * flushing the LRO session | |
8481 | */ | |
8482 | return -1; | |
8483 | } | |
8484 | ||
6aa20a22 | 8485 | /* |
7d3d0439 RA |
8486 | * Allow only one TCP timestamp option. Don't aggregate if |
8487 | * any other options are detected. | |
8488 | */ | |
8489 | if (tcp->doff != 5 && tcp->doff != 8) | |
8490 | return -1; | |
8491 | ||
8492 | if (tcp->doff == 8) { | |
6aa20a22 | 8493 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
8494 | while (*ptr == TCPOPT_NOP) |
8495 | ptr++; | |
8496 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
8497 | return -1; | |
8498 | ||
8499 | /* Ensure timestamp value increases monotonically */ | |
8500 | if (l_lro) | |
c8855953 | 8501 | if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2)))) |
7d3d0439 RA |
8502 | return -1; |
8503 | ||
8504 | /* timestamp echo reply should be non-zero */ | |
c8855953 | 8505 | if (*((__be32 *)(ptr+6)) == 0) |
7d3d0439 RA |
8506 | return -1; |
8507 | } | |
8508 | ||
8509 | return 0; | |
8510 | } | |
8511 | ||
d44570e4 JP |
8512 | static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer, |
8513 | u8 **tcp, u32 *tcp_len, struct lro **lro, | |
8514 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
8515 | { |
8516 | struct iphdr *ip; | |
8517 | struct tcphdr *tcph; | |
8518 | int ret = 0, i; | |
cdb5bf02 | 8519 | u16 vlan_tag = 0; |
ffb5df6c | 8520 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
7d3d0439 | 8521 | |
d44570e4 JP |
8522 | ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, |
8523 | rxdp, sp); | |
8524 | if (ret) | |
7d3d0439 | 8525 | return ret; |
7d3d0439 | 8526 | |
d44570e4 JP |
8527 | DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr); |
8528 | ||
cdb5bf02 | 8529 | vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2); |
7d3d0439 RA |
8530 | tcph = (struct tcphdr *)*tcp; |
8531 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
d44570e4 | 8532 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 8533 | struct lro *l_lro = &ring_data->lro0_n[i]; |
7d3d0439 RA |
8534 | if (l_lro->in_use) { |
8535 | if (check_for_socket_match(l_lro, ip, tcph)) | |
8536 | continue; | |
8537 | /* Sock pair matched */ | |
8538 | *lro = l_lro; | |
8539 | ||
8540 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
9e39f7c5 JP |
8541 | DBG_PRINT(INFO_DBG, "%s: Out of sequence. " |
8542 | "expected 0x%x, actual 0x%x\n", | |
8543 | __func__, | |
7d3d0439 RA |
8544 | (*lro)->tcp_next_seq, |
8545 | ntohl(tcph->seq)); | |
8546 | ||
ffb5df6c | 8547 | swstats->outof_sequence_pkts++; |
7d3d0439 RA |
8548 | ret = 2; |
8549 | break; | |
8550 | } | |
8551 | ||
d44570e4 JP |
8552 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph, |
8553 | *tcp_len)) | |
7d3d0439 RA |
8554 | ret = 1; /* Aggregate */ |
8555 | else | |
8556 | ret = 2; /* Flush both */ | |
8557 | break; | |
8558 | } | |
8559 | } | |
8560 | ||
8561 | if (ret == 0) { | |
8562 | /* Before searching for available LRO objects, | |
8563 | * check if the pkt is L3/L4 aggregatable. If not | |
8564 | * don't create new LRO session. Just send this | |
8565 | * packet up. | |
8566 | */ | |
d44570e4 | 8567 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) |
7d3d0439 | 8568 | return 5; |
7d3d0439 | 8569 | |
d44570e4 | 8570 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 8571 | struct lro *l_lro = &ring_data->lro0_n[i]; |
7d3d0439 RA |
8572 | if (!(l_lro->in_use)) { |
8573 | *lro = l_lro; | |
8574 | ret = 3; /* Begin anew */ | |
8575 | break; | |
8576 | } | |
8577 | } | |
8578 | } | |
8579 | ||
8580 | if (ret == 0) { /* sessions exceeded */ | |
9e39f7c5 | 8581 | DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n", |
b39d66a8 | 8582 | __func__); |
7d3d0439 RA |
8583 | *lro = NULL; |
8584 | return ret; | |
8585 | } | |
8586 | ||
8587 | switch (ret) { | |
d44570e4 JP |
8588 | case 3: |
8589 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len, | |
8590 | vlan_tag); | |
8591 | break; | |
8592 | case 2: | |
8593 | update_L3L4_header(sp, *lro); | |
8594 | break; | |
8595 | case 1: | |
8596 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
8597 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7d3d0439 | 8598 | update_L3L4_header(sp, *lro); |
d44570e4 JP |
8599 | ret = 4; /* Flush the LRO */ |
8600 | } | |
8601 | break; | |
8602 | default: | |
9e39f7c5 | 8603 | DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__); |
d44570e4 | 8604 | break; |
7d3d0439 RA |
8605 | } |
8606 | ||
8607 | return ret; | |
8608 | } | |
8609 | ||
1ee6dd77 | 8610 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 8611 | { |
1ee6dd77 | 8612 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
8613 | |
8614 | memset(lro, 0, lro_struct_size); | |
8615 | } | |
8616 | ||
cdb5bf02 | 8617 | static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag) |
7d3d0439 RA |
8618 | { |
8619 | struct net_device *dev = skb->dev; | |
4cf1653a | 8620 | struct s2io_nic *sp = netdev_priv(dev); |
7d3d0439 RA |
8621 | |
8622 | skb->protocol = eth_type_trans(skb, dev); | |
d44570e4 | 8623 | if (sp->vlgrp && vlan_tag && (sp->vlan_strip_flag)) { |
cdb5bf02 SH |
8624 | /* Queueing the vlan frame to the upper layer */ |
8625 | if (sp->config.napi) | |
8626 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag); | |
8627 | else | |
8628 | vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag); | |
8629 | } else { | |
8630 | if (sp->config.napi) | |
8631 | netif_receive_skb(skb); | |
8632 | else | |
8633 | netif_rx(skb); | |
8634 | } | |
7d3d0439 RA |
8635 | } |
8636 | ||
1ee6dd77 | 8637 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
d44570e4 | 8638 | struct sk_buff *skb, u32 tcp_len) |
7d3d0439 | 8639 | { |
75c30b13 | 8640 | struct sk_buff *first = lro->parent; |
ffb5df6c | 8641 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
7d3d0439 RA |
8642 | |
8643 | first->len += tcp_len; | |
8644 | first->data_len = lro->frags_len; | |
8645 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
8646 | if (skb_shinfo(first)->frag_list) |
8647 | lro->last_frag->next = skb; | |
7d3d0439 RA |
8648 | else |
8649 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 8650 | first->truesize += skb->truesize; |
75c30b13 | 8651 | lro->last_frag = skb; |
ffb5df6c | 8652 | swstats->clubbed_frms_cnt++; |
7d3d0439 | 8653 | } |
d796fdb7 LV |
8654 | |
8655 | /** | |
8656 | * s2io_io_error_detected - called when PCI error is detected | |
8657 | * @pdev: Pointer to PCI device | |
8453d43f | 8658 | * @state: The current pci connection state |
d796fdb7 LV |
8659 | * |
8660 | * This function is called after a PCI bus error affecting | |
8661 | * this device has been detected. | |
8662 | */ | |
8663 | static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, | |
d44570e4 | 8664 | pci_channel_state_t state) |
d796fdb7 LV |
8665 | { |
8666 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8667 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8668 | |
8669 | netif_device_detach(netdev); | |
8670 | ||
1e3c8bd6 DN |
8671 | if (state == pci_channel_io_perm_failure) |
8672 | return PCI_ERS_RESULT_DISCONNECT; | |
8673 | ||
d796fdb7 LV |
8674 | if (netif_running(netdev)) { |
8675 | /* Bring down the card, while avoiding PCI I/O */ | |
8676 | do_s2io_card_down(sp, 0); | |
d796fdb7 LV |
8677 | } |
8678 | pci_disable_device(pdev); | |
8679 | ||
8680 | return PCI_ERS_RESULT_NEED_RESET; | |
8681 | } | |
8682 | ||
8683 | /** | |
8684 | * s2io_io_slot_reset - called after the pci bus has been reset. | |
8685 | * @pdev: Pointer to PCI device | |
8686 | * | |
8687 | * Restart the card from scratch, as if from a cold-boot. | |
8688 | * At this point, the card has exprienced a hard reset, | |
8689 | * followed by fixups by BIOS, and has its config space | |
8690 | * set up identically to what it was at cold boot. | |
8691 | */ | |
8692 | static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev) | |
8693 | { | |
8694 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8695 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8696 | |
8697 | if (pci_enable_device(pdev)) { | |
6cef2b8e | 8698 | pr_err("Cannot re-enable PCI device after reset.\n"); |
d796fdb7 LV |
8699 | return PCI_ERS_RESULT_DISCONNECT; |
8700 | } | |
8701 | ||
8702 | pci_set_master(pdev); | |
8703 | s2io_reset(sp); | |
8704 | ||
8705 | return PCI_ERS_RESULT_RECOVERED; | |
8706 | } | |
8707 | ||
8708 | /** | |
8709 | * s2io_io_resume - called when traffic can start flowing again. | |
8710 | * @pdev: Pointer to PCI device | |
8711 | * | |
8712 | * This callback is called when the error recovery driver tells | |
8713 | * us that its OK to resume normal operation. | |
8714 | */ | |
8715 | static void s2io_io_resume(struct pci_dev *pdev) | |
8716 | { | |
8717 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8718 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8719 | |
8720 | if (netif_running(netdev)) { | |
8721 | if (s2io_card_up(sp)) { | |
6cef2b8e | 8722 | pr_err("Can't bring device back up after reset.\n"); |
d796fdb7 LV |
8723 | return; |
8724 | } | |
8725 | ||
8726 | if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) { | |
8727 | s2io_card_down(sp); | |
6cef2b8e | 8728 | pr_err("Can't restore mac addr after reset.\n"); |
d796fdb7 LV |
8729 | return; |
8730 | } | |
8731 | } | |
8732 | ||
8733 | netif_device_attach(netdev); | |
fd2ea0a7 | 8734 | netif_tx_wake_all_queues(netdev); |
d796fdb7 | 8735 | } |