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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 K |
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 K |
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> |
70c71606 | 81 | #include <linux/prefetch.h> |
7d3d0439 | 82 | #include <net/tcp.h> |
9a18dd15 | 83 | #include <net/checksum.h> |
1da177e4 | 84 | |
fe931395 | 85 | #include <asm/div64.h> |
330ce0de | 86 | #include <asm/irq.h> |
1da177e4 LT |
87 | |
88 | /* local include */ | |
89 | #include "s2io.h" | |
90 | #include "s2io-regs.h" | |
91 | ||
11410b62 | 92 | #define DRV_VERSION "2.0.26.28" |
6c1792f4 | 93 | |
1da177e4 | 94 | /* S2io Driver name & version. */ |
c0dbf37e JM |
95 | static const char s2io_driver_name[] = "Neterion"; |
96 | static const char s2io_driver_version[] = DRV_VERSION; | |
1da177e4 | 97 | |
c0dbf37e JM |
98 | static const int rxd_size[2] = {32, 48}; |
99 | static const int rxd_count[2] = {127, 85}; | |
da6971d8 | 100 | |
1ee6dd77 | 101 | static inline int RXD_IS_UP2DT(struct RxD_t *rxdp) |
5e25b9dd K |
102 | { |
103 | int ret; | |
104 | ||
105 | ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) && | |
d44570e4 | 106 | (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK)); |
5e25b9dd K |
107 | |
108 | return ret; | |
109 | } | |
110 | ||
20346722 | 111 | /* |
1da177e4 LT |
112 | * Cards with following subsystem_id have a link state indication |
113 | * problem, 600B, 600C, 600D, 640B, 640C and 640D. | |
114 | * macro below identifies these cards given the subsystem_id. | |
115 | */ | |
d44570e4 JP |
116 | #define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \ |
117 | (dev_type == XFRAME_I_DEVICE) ? \ | |
118 | ((((subid >= 0x600B) && (subid <= 0x600D)) || \ | |
119 | ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0 | |
1da177e4 LT |
120 | |
121 | #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \ | |
122 | ADAPTER_STATUS_RMAC_LOCAL_FAULT))) | |
1da177e4 | 123 | |
d44570e4 | 124 | static inline int is_s2io_card_up(const struct s2io_nic *sp) |
92b84437 SS |
125 | { |
126 | return test_bit(__S2IO_STATE_CARD_UP, &sp->state); | |
127 | } | |
128 | ||
1da177e4 | 129 | /* Ethtool related variables and Macros. */ |
6fce365d | 130 | static const char s2io_gstrings[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
131 | "Register test\t(offline)", |
132 | "Eeprom test\t(offline)", | |
133 | "Link test\t(online)", | |
134 | "RLDRAM test\t(offline)", | |
135 | "BIST Test\t(offline)" | |
136 | }; | |
137 | ||
6fce365d | 138 | static const char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
139 | {"tmac_frms"}, |
140 | {"tmac_data_octets"}, | |
141 | {"tmac_drop_frms"}, | |
142 | {"tmac_mcst_frms"}, | |
143 | {"tmac_bcst_frms"}, | |
144 | {"tmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
145 | {"tmac_ttl_octets"}, |
146 | {"tmac_ucst_frms"}, | |
147 | {"tmac_nucst_frms"}, | |
1da177e4 | 148 | {"tmac_any_err_frms"}, |
bd1034f0 | 149 | {"tmac_ttl_less_fb_octets"}, |
1da177e4 LT |
150 | {"tmac_vld_ip_octets"}, |
151 | {"tmac_vld_ip"}, | |
152 | {"tmac_drop_ip"}, | |
153 | {"tmac_icmp"}, | |
154 | {"tmac_rst_tcp"}, | |
155 | {"tmac_tcp"}, | |
156 | {"tmac_udp"}, | |
157 | {"rmac_vld_frms"}, | |
158 | {"rmac_data_octets"}, | |
159 | {"rmac_fcs_err_frms"}, | |
160 | {"rmac_drop_frms"}, | |
161 | {"rmac_vld_mcst_frms"}, | |
162 | {"rmac_vld_bcst_frms"}, | |
163 | {"rmac_in_rng_len_err_frms"}, | |
bd1034f0 | 164 | {"rmac_out_rng_len_err_frms"}, |
1da177e4 LT |
165 | {"rmac_long_frms"}, |
166 | {"rmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
167 | {"rmac_unsup_ctrl_frms"}, |
168 | {"rmac_ttl_octets"}, | |
169 | {"rmac_accepted_ucst_frms"}, | |
170 | {"rmac_accepted_nucst_frms"}, | |
1da177e4 | 171 | {"rmac_discarded_frms"}, |
bd1034f0 AR |
172 | {"rmac_drop_events"}, |
173 | {"rmac_ttl_less_fb_octets"}, | |
174 | {"rmac_ttl_frms"}, | |
1da177e4 LT |
175 | {"rmac_usized_frms"}, |
176 | {"rmac_osized_frms"}, | |
177 | {"rmac_frag_frms"}, | |
178 | {"rmac_jabber_frms"}, | |
bd1034f0 AR |
179 | {"rmac_ttl_64_frms"}, |
180 | {"rmac_ttl_65_127_frms"}, | |
181 | {"rmac_ttl_128_255_frms"}, | |
182 | {"rmac_ttl_256_511_frms"}, | |
183 | {"rmac_ttl_512_1023_frms"}, | |
184 | {"rmac_ttl_1024_1518_frms"}, | |
1da177e4 LT |
185 | {"rmac_ip"}, |
186 | {"rmac_ip_octets"}, | |
187 | {"rmac_hdr_err_ip"}, | |
188 | {"rmac_drop_ip"}, | |
189 | {"rmac_icmp"}, | |
190 | {"rmac_tcp"}, | |
191 | {"rmac_udp"}, | |
192 | {"rmac_err_drp_udp"}, | |
bd1034f0 AR |
193 | {"rmac_xgmii_err_sym"}, |
194 | {"rmac_frms_q0"}, | |
195 | {"rmac_frms_q1"}, | |
196 | {"rmac_frms_q2"}, | |
197 | {"rmac_frms_q3"}, | |
198 | {"rmac_frms_q4"}, | |
199 | {"rmac_frms_q5"}, | |
200 | {"rmac_frms_q6"}, | |
201 | {"rmac_frms_q7"}, | |
202 | {"rmac_full_q0"}, | |
203 | {"rmac_full_q1"}, | |
204 | {"rmac_full_q2"}, | |
205 | {"rmac_full_q3"}, | |
206 | {"rmac_full_q4"}, | |
207 | {"rmac_full_q5"}, | |
208 | {"rmac_full_q6"}, | |
209 | {"rmac_full_q7"}, | |
1da177e4 | 210 | {"rmac_pause_cnt"}, |
bd1034f0 AR |
211 | {"rmac_xgmii_data_err_cnt"}, |
212 | {"rmac_xgmii_ctrl_err_cnt"}, | |
1da177e4 LT |
213 | {"rmac_accepted_ip"}, |
214 | {"rmac_err_tcp"}, | |
bd1034f0 AR |
215 | {"rd_req_cnt"}, |
216 | {"new_rd_req_cnt"}, | |
217 | {"new_rd_req_rtry_cnt"}, | |
218 | {"rd_rtry_cnt"}, | |
219 | {"wr_rtry_rd_ack_cnt"}, | |
220 | {"wr_req_cnt"}, | |
221 | {"new_wr_req_cnt"}, | |
222 | {"new_wr_req_rtry_cnt"}, | |
223 | {"wr_rtry_cnt"}, | |
224 | {"wr_disc_cnt"}, | |
225 | {"rd_rtry_wr_ack_cnt"}, | |
226 | {"txp_wr_cnt"}, | |
227 | {"txd_rd_cnt"}, | |
228 | {"txd_wr_cnt"}, | |
229 | {"rxd_rd_cnt"}, | |
230 | {"rxd_wr_cnt"}, | |
231 | {"txf_rd_cnt"}, | |
fa1f0cb3 SS |
232 | {"rxf_wr_cnt"} |
233 | }; | |
234 | ||
6fce365d | 235 | static const char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = { |
bd1034f0 AR |
236 | {"rmac_ttl_1519_4095_frms"}, |
237 | {"rmac_ttl_4096_8191_frms"}, | |
238 | {"rmac_ttl_8192_max_frms"}, | |
239 | {"rmac_ttl_gt_max_frms"}, | |
240 | {"rmac_osized_alt_frms"}, | |
241 | {"rmac_jabber_alt_frms"}, | |
242 | {"rmac_gt_max_alt_frms"}, | |
243 | {"rmac_vlan_frms"}, | |
244 | {"rmac_len_discard"}, | |
245 | {"rmac_fcs_discard"}, | |
246 | {"rmac_pf_discard"}, | |
247 | {"rmac_da_discard"}, | |
248 | {"rmac_red_discard"}, | |
249 | {"rmac_rts_discard"}, | |
250 | {"rmac_ingm_full_discard"}, | |
fa1f0cb3 SS |
251 | {"link_fault_cnt"} |
252 | }; | |
253 | ||
6fce365d | 254 | static const char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = { |
7ba013ac K |
255 | {"\n DRIVER STATISTICS"}, |
256 | {"single_bit_ecc_errs"}, | |
257 | {"double_bit_ecc_errs"}, | |
bd1034f0 AR |
258 | {"parity_err_cnt"}, |
259 | {"serious_err_cnt"}, | |
260 | {"soft_reset_cnt"}, | |
261 | {"fifo_full_cnt"}, | |
8116f3cf SS |
262 | {"ring_0_full_cnt"}, |
263 | {"ring_1_full_cnt"}, | |
264 | {"ring_2_full_cnt"}, | |
265 | {"ring_3_full_cnt"}, | |
266 | {"ring_4_full_cnt"}, | |
267 | {"ring_5_full_cnt"}, | |
268 | {"ring_6_full_cnt"}, | |
269 | {"ring_7_full_cnt"}, | |
43b7c451 SH |
270 | {"alarm_transceiver_temp_high"}, |
271 | {"alarm_transceiver_temp_low"}, | |
272 | {"alarm_laser_bias_current_high"}, | |
273 | {"alarm_laser_bias_current_low"}, | |
274 | {"alarm_laser_output_power_high"}, | |
275 | {"alarm_laser_output_power_low"}, | |
276 | {"warn_transceiver_temp_high"}, | |
277 | {"warn_transceiver_temp_low"}, | |
278 | {"warn_laser_bias_current_high"}, | |
279 | {"warn_laser_bias_current_low"}, | |
280 | {"warn_laser_output_power_high"}, | |
281 | {"warn_laser_output_power_low"}, | |
282 | {"lro_aggregated_pkts"}, | |
283 | {"lro_flush_both_count"}, | |
284 | {"lro_out_of_sequence_pkts"}, | |
285 | {"lro_flush_due_to_max_pkts"}, | |
286 | {"lro_avg_aggr_pkts"}, | |
287 | {"mem_alloc_fail_cnt"}, | |
288 | {"pci_map_fail_cnt"}, | |
289 | {"watchdog_timer_cnt"}, | |
290 | {"mem_allocated"}, | |
291 | {"mem_freed"}, | |
292 | {"link_up_cnt"}, | |
293 | {"link_down_cnt"}, | |
294 | {"link_up_time"}, | |
295 | {"link_down_time"}, | |
296 | {"tx_tcode_buf_abort_cnt"}, | |
297 | {"tx_tcode_desc_abort_cnt"}, | |
298 | {"tx_tcode_parity_err_cnt"}, | |
299 | {"tx_tcode_link_loss_cnt"}, | |
300 | {"tx_tcode_list_proc_err_cnt"}, | |
301 | {"rx_tcode_parity_err_cnt"}, | |
302 | {"rx_tcode_abort_cnt"}, | |
303 | {"rx_tcode_parity_abort_cnt"}, | |
304 | {"rx_tcode_rda_fail_cnt"}, | |
305 | {"rx_tcode_unkn_prot_cnt"}, | |
306 | {"rx_tcode_fcs_err_cnt"}, | |
307 | {"rx_tcode_buf_size_err_cnt"}, | |
308 | {"rx_tcode_rxd_corrupt_cnt"}, | |
309 | {"rx_tcode_unkn_err_cnt"}, | |
8116f3cf SS |
310 | {"tda_err_cnt"}, |
311 | {"pfc_err_cnt"}, | |
312 | {"pcc_err_cnt"}, | |
313 | {"tti_err_cnt"}, | |
314 | {"tpa_err_cnt"}, | |
315 | {"sm_err_cnt"}, | |
316 | {"lso_err_cnt"}, | |
317 | {"mac_tmac_err_cnt"}, | |
318 | {"mac_rmac_err_cnt"}, | |
319 | {"xgxs_txgxs_err_cnt"}, | |
320 | {"xgxs_rxgxs_err_cnt"}, | |
321 | {"rc_err_cnt"}, | |
322 | {"prc_pcix_err_cnt"}, | |
323 | {"rpa_err_cnt"}, | |
324 | {"rda_err_cnt"}, | |
325 | {"rti_err_cnt"}, | |
326 | {"mc_err_cnt"} | |
1da177e4 LT |
327 | }; |
328 | ||
4c3616cd AMR |
329 | #define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys) |
330 | #define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys) | |
331 | #define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys) | |
fa1f0cb3 | 332 | |
d44570e4 JP |
333 | #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN) |
334 | #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN) | |
fa1f0cb3 | 335 | |
d44570e4 JP |
336 | #define XFRAME_I_STAT_STRINGS_LEN (XFRAME_I_STAT_LEN * ETH_GSTRING_LEN) |
337 | #define XFRAME_II_STAT_STRINGS_LEN (XFRAME_II_STAT_LEN * ETH_GSTRING_LEN) | |
1da177e4 | 338 | |
4c3616cd | 339 | #define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings) |
d44570e4 | 340 | #define S2IO_STRINGS_LEN (S2IO_TEST_LEN * ETH_GSTRING_LEN) |
1da177e4 | 341 | |
d44570e4 JP |
342 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
343 | init_timer(&timer); \ | |
344 | timer.function = handle; \ | |
345 | timer.data = (unsigned long)arg; \ | |
346 | mod_timer(&timer, (jiffies + exp)) \ | |
25fff88e | 347 | |
2fd37688 SS |
348 | /* copy mac addr to def_mac_addr array */ |
349 | static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr) | |
350 | { | |
351 | sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr); | |
352 | sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8); | |
353 | sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16); | |
354 | sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24); | |
355 | sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32); | |
356 | sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40); | |
357 | } | |
04025095 | 358 | |
20346722 | 359 | /* |
1da177e4 LT |
360 | * Constants to be programmed into the Xena's registers, to configure |
361 | * the XAUI. | |
362 | */ | |
363 | ||
1da177e4 | 364 | #define END_SIGN 0x0 |
f71e1309 | 365 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 366 | /* Set address */ |
e960fc5c | 367 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 368 | /* Write data */ |
e960fc5c | 369 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f K |
370 | /* Set address */ |
371 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
372 | /* Write data */ | |
373 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
374 | /* Set address */ | |
e960fc5c | 375 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
376 | /* Write data */ | |
377 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
378 | /* Set address */ | |
541ae68f K |
379 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
380 | /* Write data */ | |
381 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
382 | /* Done */ | |
383 | END_SIGN | |
384 | }; | |
385 | ||
f71e1309 | 386 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 387 | /* Set address */ |
1da177e4 | 388 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
389 | /* Write data */ |
390 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
391 | /* Set address */ | |
392 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
393 | /* Write data */ | |
394 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
395 | /* Set address */ | |
1da177e4 | 396 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
397 | /* Write data */ |
398 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
399 | END_SIGN |
400 | }; | |
401 | ||
20346722 | 402 | /* |
1da177e4 LT |
403 | * Constants for Fixing the MacAddress problem seen mostly on |
404 | * Alpha machines. | |
405 | */ | |
f71e1309 | 406 | static const u64 fix_mac[] = { |
1da177e4 LT |
407 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
408 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
409 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
410 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
411 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
412 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
413 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
414 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
415 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
416 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
417 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
418 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
419 | 0x0020600000000000ULL, 0x0000600000000000ULL, | |
420 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
421 | END_SIGN | |
422 | }; | |
423 | ||
b41477f3 AR |
424 | MODULE_LICENSE("GPL"); |
425 | MODULE_VERSION(DRV_VERSION); | |
426 | ||
427 | ||
1da177e4 | 428 | /* Module Loadable parameters. */ |
6cfc482b | 429 | S2IO_PARM_INT(tx_fifo_num, FIFO_DEFAULT_NUM); |
b41477f3 | 430 | S2IO_PARM_INT(rx_ring_num, 1); |
3a3d5756 | 431 | S2IO_PARM_INT(multiq, 0); |
b41477f3 AR |
432 | S2IO_PARM_INT(rx_ring_mode, 1); |
433 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
434 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
435 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
436 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
437 | S2IO_PARM_INT(shared_splits, 0); | |
438 | S2IO_PARM_INT(tmac_util_period, 5); | |
439 | S2IO_PARM_INT(rmac_util_period, 5); | |
b41477f3 | 440 | S2IO_PARM_INT(l3l4hdr_size, 128); |
6cfc482b SH |
441 | /* 0 is no steering, 1 is Priority steering, 2 is Default steering */ |
442 | S2IO_PARM_INT(tx_steering_type, TX_DEFAULT_STEERING); | |
303bcb4b | 443 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 444 | S2IO_PARM_INT(rxsync_frequency, 3); |
eccb8628 | 445 | /* Interrupt type. Values can be 0(INTA), 2(MSI_X) */ |
8abc4d5b | 446 | S2IO_PARM_INT(intr_type, 2); |
7d3d0439 | 447 | /* Large receive offload feature */ |
43b7c451 | 448 | |
7d3d0439 RA |
449 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
450 | * aggregation happens until we hit max IP pkt size(64K) | |
451 | */ | |
b41477f3 | 452 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 453 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
454 | |
455 | S2IO_PARM_INT(napi, 1); | |
456 | S2IO_PARM_INT(ufo, 0); | |
926930b2 | 457 | S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC); |
b41477f3 AR |
458 | |
459 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
d44570e4 | 460 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; |
b41477f3 | 461 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = |
d44570e4 | 462 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; |
b41477f3 | 463 | static unsigned int rts_frm_len[MAX_RX_RINGS] = |
d44570e4 | 464 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; |
b41477f3 AR |
465 | |
466 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
467 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
468 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 469 | |
20346722 | 470 | /* |
1da177e4 | 471 | * S2IO device table. |
20346722 | 472 | * This table lists all the devices that this driver supports. |
1da177e4 | 473 | */ |
9baa3c34 | 474 | static const struct pci_device_id s2io_tbl[] = { |
1da177e4 LT |
475 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, |
476 | PCI_ANY_ID, PCI_ANY_ID}, | |
477 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
478 | PCI_ANY_ID, PCI_ANY_ID}, | |
479 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
d44570e4 JP |
480 | PCI_ANY_ID, PCI_ANY_ID}, |
481 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
482 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
483 | {0,} |
484 | }; | |
485 | ||
486 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
487 | ||
3646f0e5 | 488 | static const struct pci_error_handlers s2io_err_handler = { |
d796fdb7 LV |
489 | .error_detected = s2io_io_error_detected, |
490 | .slot_reset = s2io_io_slot_reset, | |
491 | .resume = s2io_io_resume, | |
492 | }; | |
493 | ||
1da177e4 | 494 | static struct pci_driver s2io_driver = { |
d44570e4 JP |
495 | .name = "S2IO", |
496 | .id_table = s2io_tbl, | |
497 | .probe = s2io_init_nic, | |
3a036ce5 | 498 | .remove = s2io_rem_nic, |
d44570e4 | 499 | .err_handler = &s2io_err_handler, |
1da177e4 LT |
500 | }; |
501 | ||
502 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
503 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
504 | ||
3a3d5756 SH |
505 | /* netqueue manipulation helper functions */ |
506 | static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp) | |
507 | { | |
fd2ea0a7 DM |
508 | if (!sp->config.multiq) { |
509 | int i; | |
510 | ||
3a3d5756 SH |
511 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
512 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP; | |
3a3d5756 | 513 | } |
fd2ea0a7 | 514 | netif_tx_stop_all_queues(sp->dev); |
3a3d5756 SH |
515 | } |
516 | ||
517 | static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no) | |
518 | { | |
fd2ea0a7 | 519 | if (!sp->config.multiq) |
3a3d5756 SH |
520 | sp->mac_control.fifos[fifo_no].queue_state = |
521 | FIFO_QUEUE_STOP; | |
fd2ea0a7 DM |
522 | |
523 | netif_tx_stop_all_queues(sp->dev); | |
3a3d5756 SH |
524 | } |
525 | ||
526 | static inline void s2io_start_all_tx_queue(struct s2io_nic *sp) | |
527 | { | |
fd2ea0a7 DM |
528 | if (!sp->config.multiq) { |
529 | int i; | |
530 | ||
3a3d5756 SH |
531 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
532 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START; | |
3a3d5756 | 533 | } |
fd2ea0a7 | 534 | netif_tx_start_all_queues(sp->dev); |
3a3d5756 SH |
535 | } |
536 | ||
3a3d5756 SH |
537 | static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp) |
538 | { | |
fd2ea0a7 DM |
539 | if (!sp->config.multiq) { |
540 | int i; | |
541 | ||
3a3d5756 SH |
542 | for (i = 0; i < sp->config.tx_fifo_num; i++) |
543 | sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START; | |
3a3d5756 | 544 | } |
fd2ea0a7 | 545 | netif_tx_wake_all_queues(sp->dev); |
3a3d5756 SH |
546 | } |
547 | ||
548 | static inline void s2io_wake_tx_queue( | |
549 | struct fifo_info *fifo, int cnt, u8 multiq) | |
550 | { | |
551 | ||
3a3d5756 SH |
552 | if (multiq) { |
553 | if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no)) | |
554 | netif_wake_subqueue(fifo->dev, fifo->fifo_no); | |
b19fa1fa | 555 | } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) { |
3a3d5756 SH |
556 | if (netif_queue_stopped(fifo->dev)) { |
557 | fifo->queue_state = FIFO_QUEUE_START; | |
558 | netif_wake_queue(fifo->dev); | |
559 | } | |
560 | } | |
561 | } | |
562 | ||
1da177e4 LT |
563 | /** |
564 | * init_shared_mem - Allocation and Initialization of Memory | |
565 | * @nic: Device private variable. | |
20346722 K |
566 | * Description: The function allocates all the memory areas shared |
567 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
568 | * Rx descriptors and the statistics block. |
569 | */ | |
570 | ||
571 | static int init_shared_mem(struct s2io_nic *nic) | |
572 | { | |
573 | u32 size; | |
574 | void *tmp_v_addr, *tmp_v_addr_next; | |
575 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 576 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 577 | int i, j, blk_cnt; |
1da177e4 LT |
578 | int lst_size, lst_per_page; |
579 | struct net_device *dev = nic->dev; | |
8ae418cf | 580 | unsigned long tmp; |
1ee6dd77 | 581 | struct buffAdd *ba; |
ffb5df6c JP |
582 | struct config_param *config = &nic->config; |
583 | struct mac_info *mac_control = &nic->mac_control; | |
491976b2 | 584 | unsigned long long mem_allocated = 0; |
1da177e4 | 585 | |
13d866a9 | 586 | /* Allocation and initialization of TXDLs in FIFOs */ |
1da177e4 LT |
587 | size = 0; |
588 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
589 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
590 | ||
591 | size += tx_cfg->fifo_len; | |
1da177e4 LT |
592 | } |
593 | if (size > MAX_AVAILABLE_TXDS) { | |
9e39f7c5 JP |
594 | DBG_PRINT(ERR_DBG, |
595 | "Too many TxDs requested: %d, max supported: %d\n", | |
596 | size, MAX_AVAILABLE_TXDS); | |
b41477f3 | 597 | return -EINVAL; |
1da177e4 LT |
598 | } |
599 | ||
2fda096d SR |
600 | size = 0; |
601 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
602 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
603 | ||
604 | size = tx_cfg->fifo_len; | |
2fda096d SR |
605 | /* |
606 | * Legal values are from 2 to 8192 | |
607 | */ | |
608 | if (size < 2) { | |
9e39f7c5 JP |
609 | DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - " |
610 | "Valid lengths are 2 through 8192\n", | |
611 | i, size); | |
2fda096d SR |
612 | return -EINVAL; |
613 | } | |
614 | } | |
615 | ||
1ee6dd77 | 616 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
617 | lst_per_page = PAGE_SIZE / lst_size; |
618 | ||
619 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
620 | struct fifo_info *fifo = &mac_control->fifos[i]; |
621 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
622 | int fifo_len = tx_cfg->fifo_len; | |
1ee6dd77 | 623 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
13d866a9 JP |
624 | |
625 | fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL); | |
626 | if (!fifo->list_info) { | |
d44570e4 | 627 | DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n"); |
1da177e4 LT |
628 | return -ENOMEM; |
629 | } | |
491976b2 | 630 | mem_allocated += list_holder_size; |
1da177e4 LT |
631 | } |
632 | for (i = 0; i < config->tx_fifo_num; i++) { | |
633 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
634 | lst_per_page); | |
13d866a9 JP |
635 | struct fifo_info *fifo = &mac_control->fifos[i]; |
636 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
637 | ||
638 | fifo->tx_curr_put_info.offset = 0; | |
639 | fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1; | |
640 | fifo->tx_curr_get_info.offset = 0; | |
641 | fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1; | |
642 | fifo->fifo_no = i; | |
643 | fifo->nic = nic; | |
644 | fifo->max_txds = MAX_SKB_FRAGS + 2; | |
645 | fifo->dev = dev; | |
20346722 | 646 | |
1da177e4 LT |
647 | for (j = 0; j < page_num; j++) { |
648 | int k = 0; | |
649 | dma_addr_t tmp_p; | |
650 | void *tmp_v; | |
651 | tmp_v = pci_alloc_consistent(nic->pdev, | |
652 | PAGE_SIZE, &tmp_p); | |
653 | if (!tmp_v) { | |
9e39f7c5 JP |
654 | DBG_PRINT(INFO_DBG, |
655 | "pci_alloc_consistent failed for TxDL\n"); | |
1da177e4 LT |
656 | return -ENOMEM; |
657 | } | |
776bd20f | 658 | /* If we got a zero DMA address(can happen on |
659 | * certain platforms like PPC), reallocate. | |
660 | * Store virtual address of page we don't want, | |
661 | * to be freed later. | |
662 | */ | |
663 | if (!tmp_p) { | |
664 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 665 | DBG_PRINT(INIT_DBG, |
9e39f7c5 JP |
666 | "%s: Zero DMA address for TxDL. " |
667 | "Virtual address %p\n", | |
668 | dev->name, tmp_v); | |
776bd20f | 669 | tmp_v = pci_alloc_consistent(nic->pdev, |
d44570e4 | 670 | PAGE_SIZE, &tmp_p); |
776bd20f | 671 | if (!tmp_v) { |
0c61ed5f | 672 | DBG_PRINT(INFO_DBG, |
9e39f7c5 | 673 | "pci_alloc_consistent failed for TxDL\n"); |
776bd20f | 674 | return -ENOMEM; |
675 | } | |
491976b2 | 676 | mem_allocated += PAGE_SIZE; |
776bd20f | 677 | } |
1da177e4 LT |
678 | while (k < lst_per_page) { |
679 | int l = (j * lst_per_page) + k; | |
13d866a9 | 680 | if (l == tx_cfg->fifo_len) |
20346722 | 681 | break; |
13d866a9 | 682 | fifo->list_info[l].list_virt_addr = |
d44570e4 | 683 | tmp_v + (k * lst_size); |
13d866a9 | 684 | fifo->list_info[l].list_phy_addr = |
d44570e4 | 685 | tmp_p + (k * lst_size); |
1da177e4 LT |
686 | k++; |
687 | } | |
688 | } | |
689 | } | |
1da177e4 | 690 | |
2fda096d | 691 | for (i = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
692 | struct fifo_info *fifo = &mac_control->fifos[i]; |
693 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
694 | ||
695 | size = tx_cfg->fifo_len; | |
696 | fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); | |
697 | if (!fifo->ufo_in_band_v) | |
2fda096d SR |
698 | return -ENOMEM; |
699 | mem_allocated += (size * sizeof(u64)); | |
700 | } | |
fed5eccd | 701 | |
1da177e4 LT |
702 | /* Allocation and initialization of RXDs in Rings */ |
703 | size = 0; | |
704 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
705 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
706 | struct ring_info *ring = &mac_control->rings[i]; | |
707 | ||
708 | if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) { | |
9e39f7c5 JP |
709 | DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a " |
710 | "multiple of RxDs per Block\n", | |
711 | dev->name, i); | |
1da177e4 LT |
712 | return FAILURE; |
713 | } | |
13d866a9 JP |
714 | size += rx_cfg->num_rxd; |
715 | ring->block_count = rx_cfg->num_rxd / | |
d44570e4 | 716 | (rxd_count[nic->rxd_mode] + 1); |
13d866a9 | 717 | ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count; |
1da177e4 | 718 | } |
da6971d8 | 719 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 720 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 721 | else |
1ee6dd77 | 722 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
723 | |
724 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
725 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
726 | struct ring_info *ring = &mac_control->rings[i]; | |
727 | ||
728 | ring->rx_curr_get_info.block_index = 0; | |
729 | ring->rx_curr_get_info.offset = 0; | |
730 | ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1; | |
731 | ring->rx_curr_put_info.block_index = 0; | |
732 | ring->rx_curr_put_info.offset = 0; | |
733 | ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1; | |
734 | ring->nic = nic; | |
735 | ring->ring_no = i; | |
13d866a9 JP |
736 | |
737 | blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
738 | /* Allocating all the Rx blocks */ |
739 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 740 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
741 | int l; |
742 | ||
13d866a9 | 743 | rx_blocks = &ring->rx_blocks[j]; |
d44570e4 | 744 | size = SIZE_OF_BLOCK; /* size is always page size */ |
1da177e4 LT |
745 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
746 | &tmp_p_addr); | |
747 | if (tmp_v_addr == NULL) { | |
748 | /* | |
20346722 K |
749 | * In case of failure, free_shared_mem() |
750 | * is called, which should free any | |
751 | * memory that was alloced till the | |
1da177e4 LT |
752 | * failure happened. |
753 | */ | |
da6971d8 | 754 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
755 | return -ENOMEM; |
756 | } | |
491976b2 | 757 | mem_allocated += size; |
1da177e4 | 758 | memset(tmp_v_addr, 0, size); |
4f870320 JP |
759 | |
760 | size = sizeof(struct rxd_info) * | |
761 | rxd_count[nic->rxd_mode]; | |
da6971d8 AR |
762 | rx_blocks->block_virt_addr = tmp_v_addr; |
763 | rx_blocks->block_dma_addr = tmp_p_addr; | |
4f870320 | 764 | rx_blocks->rxds = kmalloc(size, GFP_KERNEL); |
372cc597 SS |
765 | if (!rx_blocks->rxds) |
766 | return -ENOMEM; | |
4f870320 | 767 | mem_allocated += size; |
d44570e4 | 768 | for (l = 0; l < rxd_count[nic->rxd_mode]; l++) { |
da6971d8 AR |
769 | rx_blocks->rxds[l].virt_addr = |
770 | rx_blocks->block_virt_addr + | |
771 | (rxd_size[nic->rxd_mode] * l); | |
772 | rx_blocks->rxds[l].dma_addr = | |
773 | rx_blocks->block_dma_addr + | |
774 | (rxd_size[nic->rxd_mode] * l); | |
775 | } | |
1da177e4 LT |
776 | } |
777 | /* Interlinking all Rx Blocks */ | |
778 | for (j = 0; j < blk_cnt; j++) { | |
13d866a9 JP |
779 | int next = (j + 1) % blk_cnt; |
780 | tmp_v_addr = ring->rx_blocks[j].block_virt_addr; | |
781 | tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr; | |
782 | tmp_p_addr = ring->rx_blocks[j].block_dma_addr; | |
783 | tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr; | |
1da177e4 | 784 | |
43d620c8 | 785 | pre_rxd_blk = tmp_v_addr; |
1da177e4 | 786 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
d44570e4 | 787 | (unsigned long)tmp_v_addr_next; |
1da177e4 | 788 | pre_rxd_blk->pNext_RxD_Blk_physical = |
d44570e4 | 789 | (u64)tmp_p_addr_next; |
1da177e4 LT |
790 | } |
791 | } | |
6d517a27 | 792 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
793 | /* |
794 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
795 | * and the buffers as well. | |
796 | */ | |
797 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
798 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
799 | struct ring_info *ring = &mac_control->rings[i]; | |
800 | ||
801 | blk_cnt = rx_cfg->num_rxd / | |
d44570e4 | 802 | (rxd_count[nic->rxd_mode] + 1); |
4f870320 JP |
803 | size = sizeof(struct buffAdd *) * blk_cnt; |
804 | ring->ba = kmalloc(size, GFP_KERNEL); | |
13d866a9 | 805 | if (!ring->ba) |
1da177e4 | 806 | return -ENOMEM; |
4f870320 | 807 | mem_allocated += size; |
da6971d8 AR |
808 | for (j = 0; j < blk_cnt; j++) { |
809 | int k = 0; | |
4f870320 JP |
810 | |
811 | size = sizeof(struct buffAdd) * | |
812 | (rxd_count[nic->rxd_mode] + 1); | |
813 | ring->ba[j] = kmalloc(size, GFP_KERNEL); | |
13d866a9 | 814 | if (!ring->ba[j]) |
1da177e4 | 815 | return -ENOMEM; |
4f870320 | 816 | mem_allocated += size; |
da6971d8 | 817 | while (k != rxd_count[nic->rxd_mode]) { |
13d866a9 | 818 | ba = &ring->ba[j][k]; |
4f870320 JP |
819 | size = BUF0_LEN + ALIGN_SIZE; |
820 | ba->ba_0_org = kmalloc(size, GFP_KERNEL); | |
da6971d8 AR |
821 | if (!ba->ba_0_org) |
822 | return -ENOMEM; | |
4f870320 | 823 | mem_allocated += size; |
da6971d8 AR |
824 | tmp = (unsigned long)ba->ba_0_org; |
825 | tmp += ALIGN_SIZE; | |
d44570e4 JP |
826 | tmp &= ~((unsigned long)ALIGN_SIZE); |
827 | ba->ba_0 = (void *)tmp; | |
da6971d8 | 828 | |
4f870320 JP |
829 | size = BUF1_LEN + ALIGN_SIZE; |
830 | ba->ba_1_org = kmalloc(size, GFP_KERNEL); | |
da6971d8 AR |
831 | if (!ba->ba_1_org) |
832 | return -ENOMEM; | |
4f870320 | 833 | mem_allocated += size; |
d44570e4 | 834 | tmp = (unsigned long)ba->ba_1_org; |
da6971d8 | 835 | tmp += ALIGN_SIZE; |
d44570e4 JP |
836 | tmp &= ~((unsigned long)ALIGN_SIZE); |
837 | ba->ba_1 = (void *)tmp; | |
da6971d8 AR |
838 | k++; |
839 | } | |
1da177e4 LT |
840 | } |
841 | } | |
842 | } | |
1da177e4 LT |
843 | |
844 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 845 | size = sizeof(struct stat_block); |
d44570e4 JP |
846 | mac_control->stats_mem = |
847 | pci_alloc_consistent(nic->pdev, size, | |
848 | &mac_control->stats_mem_phy); | |
1da177e4 LT |
849 | |
850 | if (!mac_control->stats_mem) { | |
20346722 K |
851 | /* |
852 | * In case of failure, free_shared_mem() is called, which | |
853 | * should free any memory that was alloced till the | |
1da177e4 LT |
854 | * failure happened. |
855 | */ | |
856 | return -ENOMEM; | |
857 | } | |
491976b2 | 858 | mem_allocated += size; |
1da177e4 LT |
859 | mac_control->stats_mem_sz = size; |
860 | ||
861 | tmp_v_addr = mac_control->stats_mem; | |
43d620c8 | 862 | mac_control->stats_info = tmp_v_addr; |
1da177e4 | 863 | memset(tmp_v_addr, 0, size); |
3a22813a BL |
864 | DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n", |
865 | dev_name(&nic->pdev->dev), (unsigned long long)tmp_p_addr); | |
491976b2 | 866 | mac_control->stats_info->sw_stat.mem_allocated += mem_allocated; |
1da177e4 LT |
867 | return SUCCESS; |
868 | } | |
869 | ||
20346722 K |
870 | /** |
871 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
872 | * @nic: Device private variable. |
873 | * Description: This function is to free all memory locations allocated by | |
874 | * the init_shared_mem() function and return it to the kernel. | |
875 | */ | |
876 | ||
877 | static void free_shared_mem(struct s2io_nic *nic) | |
878 | { | |
879 | int i, j, blk_cnt, size; | |
880 | void *tmp_v_addr; | |
881 | dma_addr_t tmp_p_addr; | |
1da177e4 | 882 | int lst_size, lst_per_page; |
8910b49f | 883 | struct net_device *dev; |
491976b2 | 884 | int page_num = 0; |
ffb5df6c JP |
885 | struct config_param *config; |
886 | struct mac_info *mac_control; | |
887 | struct stat_block *stats; | |
888 | struct swStat *swstats; | |
1da177e4 LT |
889 | |
890 | if (!nic) | |
891 | return; | |
892 | ||
8910b49f MG |
893 | dev = nic->dev; |
894 | ||
1da177e4 | 895 | config = &nic->config; |
ffb5df6c JP |
896 | mac_control = &nic->mac_control; |
897 | stats = mac_control->stats_info; | |
898 | swstats = &stats->sw_stat; | |
1da177e4 | 899 | |
d44570e4 | 900 | lst_size = sizeof(struct TxD) * config->max_txds; |
1da177e4 LT |
901 | lst_per_page = PAGE_SIZE / lst_size; |
902 | ||
903 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
904 | struct fifo_info *fifo = &mac_control->fifos[i]; |
905 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
906 | ||
907 | page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page); | |
1da177e4 LT |
908 | for (j = 0; j < page_num; j++) { |
909 | int mem_blks = (j * lst_per_page); | |
13d866a9 JP |
910 | struct list_info_hold *fli; |
911 | ||
912 | if (!fifo->list_info) | |
6aa20a22 | 913 | return; |
13d866a9 JP |
914 | |
915 | fli = &fifo->list_info[mem_blks]; | |
916 | if (!fli->list_virt_addr) | |
1da177e4 LT |
917 | break; |
918 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
13d866a9 JP |
919 | fli->list_virt_addr, |
920 | fli->list_phy_addr); | |
ffb5df6c | 921 | swstats->mem_freed += PAGE_SIZE; |
1da177e4 | 922 | } |
776bd20f | 923 | /* If we got a zero DMA address during allocation, |
924 | * free the page now | |
925 | */ | |
926 | if (mac_control->zerodma_virt_addr) { | |
927 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
928 | mac_control->zerodma_virt_addr, | |
929 | (dma_addr_t)0); | |
6aa20a22 | 930 | DBG_PRINT(INIT_DBG, |
9e39f7c5 JP |
931 | "%s: Freeing TxDL with zero DMA address. " |
932 | "Virtual address %p\n", | |
933 | dev->name, mac_control->zerodma_virt_addr); | |
ffb5df6c | 934 | swstats->mem_freed += PAGE_SIZE; |
776bd20f | 935 | } |
13d866a9 | 936 | kfree(fifo->list_info); |
82c2d023 | 937 | swstats->mem_freed += tx_cfg->fifo_len * |
d44570e4 | 938 | sizeof(struct list_info_hold); |
1da177e4 LT |
939 | } |
940 | ||
1da177e4 | 941 | size = SIZE_OF_BLOCK; |
1da177e4 | 942 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 JP |
943 | struct ring_info *ring = &mac_control->rings[i]; |
944 | ||
945 | blk_cnt = ring->block_count; | |
1da177e4 | 946 | for (j = 0; j < blk_cnt; j++) { |
13d866a9 JP |
947 | tmp_v_addr = ring->rx_blocks[j].block_virt_addr; |
948 | tmp_p_addr = ring->rx_blocks[j].block_dma_addr; | |
1da177e4 LT |
949 | if (tmp_v_addr == NULL) |
950 | break; | |
951 | pci_free_consistent(nic->pdev, size, | |
952 | tmp_v_addr, tmp_p_addr); | |
ffb5df6c | 953 | swstats->mem_freed += size; |
13d866a9 | 954 | kfree(ring->rx_blocks[j].rxds); |
ffb5df6c JP |
955 | swstats->mem_freed += sizeof(struct rxd_info) * |
956 | rxd_count[nic->rxd_mode]; | |
1da177e4 LT |
957 | } |
958 | } | |
959 | ||
6d517a27 | 960 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
961 | /* Freeing buffer storage addresses in 2BUFF mode. */ |
962 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
963 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
964 | struct ring_info *ring = &mac_control->rings[i]; | |
965 | ||
966 | blk_cnt = rx_cfg->num_rxd / | |
967 | (rxd_count[nic->rxd_mode] + 1); | |
da6971d8 AR |
968 | for (j = 0; j < blk_cnt; j++) { |
969 | int k = 0; | |
13d866a9 | 970 | if (!ring->ba[j]) |
da6971d8 AR |
971 | continue; |
972 | while (k != rxd_count[nic->rxd_mode]) { | |
13d866a9 | 973 | struct buffAdd *ba = &ring->ba[j][k]; |
da6971d8 | 974 | kfree(ba->ba_0_org); |
ffb5df6c JP |
975 | swstats->mem_freed += |
976 | BUF0_LEN + ALIGN_SIZE; | |
da6971d8 | 977 | kfree(ba->ba_1_org); |
ffb5df6c JP |
978 | swstats->mem_freed += |
979 | BUF1_LEN + ALIGN_SIZE; | |
da6971d8 AR |
980 | k++; |
981 | } | |
13d866a9 | 982 | kfree(ring->ba[j]); |
ffb5df6c JP |
983 | swstats->mem_freed += sizeof(struct buffAdd) * |
984 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 | 985 | } |
13d866a9 | 986 | kfree(ring->ba); |
ffb5df6c JP |
987 | swstats->mem_freed += sizeof(struct buffAdd *) * |
988 | blk_cnt; | |
1da177e4 | 989 | } |
1da177e4 | 990 | } |
1da177e4 | 991 | |
2fda096d | 992 | for (i = 0; i < nic->config.tx_fifo_num; i++) { |
13d866a9 JP |
993 | struct fifo_info *fifo = &mac_control->fifos[i]; |
994 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; | |
995 | ||
996 | if (fifo->ufo_in_band_v) { | |
ffb5df6c JP |
997 | swstats->mem_freed += tx_cfg->fifo_len * |
998 | sizeof(u64); | |
13d866a9 | 999 | kfree(fifo->ufo_in_band_v); |
2fda096d SR |
1000 | } |
1001 | } | |
1002 | ||
1da177e4 | 1003 | if (mac_control->stats_mem) { |
ffb5df6c | 1004 | swstats->mem_freed += mac_control->stats_mem_sz; |
1da177e4 LT |
1005 | pci_free_consistent(nic->pdev, |
1006 | mac_control->stats_mem_sz, | |
1007 | mac_control->stats_mem, | |
1008 | mac_control->stats_mem_phy); | |
491976b2 | 1009 | } |
1da177e4 LT |
1010 | } |
1011 | ||
541ae68f K |
1012 | /** |
1013 | * s2io_verify_pci_mode - | |
1014 | */ | |
1015 | ||
1ee6dd77 | 1016 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 1017 | { |
1ee6dd77 | 1018 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
1019 | register u64 val64 = 0; |
1020 | int mode; | |
1021 | ||
1022 | val64 = readq(&bar0->pci_mode); | |
1023 | mode = (u8)GET_PCI_MODE(val64); | |
1024 | ||
d44570e4 | 1025 | if (val64 & PCI_MODE_UNKNOWN_MODE) |
541ae68f K |
1026 | return -1; /* Unknown PCI mode */ |
1027 | return mode; | |
1028 | } | |
1029 | ||
c92ca04b AR |
1030 | #define NEC_VENID 0x1033 |
1031 | #define NEC_DEVID 0x0125 | |
1032 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
1033 | { | |
1034 | struct pci_dev *tdev = NULL; | |
008d845c | 1035 | for_each_pci_dev(tdev) { |
26d36b64 | 1036 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { |
7ad62dbc | 1037 | if (tdev->bus == s2io_pdev->bus->parent) { |
26d36b64 | 1038 | pci_dev_put(tdev); |
c92ca04b | 1039 | return 1; |
7ad62dbc | 1040 | } |
c92ca04b AR |
1041 | } |
1042 | } | |
1043 | return 0; | |
1044 | } | |
541ae68f | 1045 | |
7b32a312 | 1046 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f K |
1047 | /** |
1048 | * s2io_print_pci_mode - | |
1049 | */ | |
1ee6dd77 | 1050 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 1051 | { |
1ee6dd77 | 1052 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
1053 | register u64 val64 = 0; |
1054 | int mode; | |
1055 | struct config_param *config = &nic->config; | |
9e39f7c5 | 1056 | const char *pcimode; |
541ae68f K |
1057 | |
1058 | val64 = readq(&bar0->pci_mode); | |
1059 | mode = (u8)GET_PCI_MODE(val64); | |
1060 | ||
d44570e4 | 1061 | if (val64 & PCI_MODE_UNKNOWN_MODE) |
541ae68f K |
1062 | return -1; /* Unknown PCI mode */ |
1063 | ||
c92ca04b AR |
1064 | config->bus_speed = bus_speed[mode]; |
1065 | ||
1066 | if (s2io_on_nec_bridge(nic->pdev)) { | |
1067 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
d44570e4 | 1068 | nic->dev->name); |
c92ca04b AR |
1069 | return mode; |
1070 | } | |
1071 | ||
d44570e4 JP |
1072 | switch (mode) { |
1073 | case PCI_MODE_PCI_33: | |
9e39f7c5 | 1074 | pcimode = "33MHz PCI bus"; |
d44570e4 JP |
1075 | break; |
1076 | case PCI_MODE_PCI_66: | |
9e39f7c5 | 1077 | pcimode = "66MHz PCI bus"; |
d44570e4 JP |
1078 | break; |
1079 | case PCI_MODE_PCIX_M1_66: | |
9e39f7c5 | 1080 | pcimode = "66MHz PCIX(M1) bus"; |
d44570e4 JP |
1081 | break; |
1082 | case PCI_MODE_PCIX_M1_100: | |
9e39f7c5 | 1083 | pcimode = "100MHz PCIX(M1) bus"; |
d44570e4 JP |
1084 | break; |
1085 | case PCI_MODE_PCIX_M1_133: | |
9e39f7c5 | 1086 | pcimode = "133MHz PCIX(M1) bus"; |
d44570e4 JP |
1087 | break; |
1088 | case PCI_MODE_PCIX_M2_66: | |
9e39f7c5 | 1089 | pcimode = "133MHz PCIX(M2) bus"; |
d44570e4 JP |
1090 | break; |
1091 | case PCI_MODE_PCIX_M2_100: | |
9e39f7c5 | 1092 | pcimode = "200MHz PCIX(M2) bus"; |
d44570e4 JP |
1093 | break; |
1094 | case PCI_MODE_PCIX_M2_133: | |
9e39f7c5 | 1095 | pcimode = "266MHz PCIX(M2) bus"; |
d44570e4 JP |
1096 | break; |
1097 | default: | |
9e39f7c5 JP |
1098 | pcimode = "unsupported bus!"; |
1099 | mode = -1; | |
541ae68f K |
1100 | } |
1101 | ||
9e39f7c5 JP |
1102 | DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n", |
1103 | nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode); | |
1104 | ||
541ae68f K |
1105 | return mode; |
1106 | } | |
1107 | ||
b7c5678f RV |
1108 | /** |
1109 | * init_tti - Initialization transmit traffic interrupt scheme | |
1110 | * @nic: device private variable | |
1111 | * @link: link status (UP/DOWN) used to enable/disable continuous | |
1112 | * transmit interrupts | |
1113 | * Description: The function configures transmit traffic interrupts | |
1114 | * Return Value: SUCCESS on success and | |
1115 | * '-1' on failure | |
1116 | */ | |
1117 | ||
0d66afe7 | 1118 | static int init_tti(struct s2io_nic *nic, int link) |
b7c5678f RV |
1119 | { |
1120 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
1121 | register u64 val64 = 0; | |
1122 | int i; | |
ffb5df6c | 1123 | struct config_param *config = &nic->config; |
b7c5678f RV |
1124 | |
1125 | for (i = 0; i < config->tx_fifo_num; i++) { | |
1126 | /* | |
1127 | * TTI Initialization. Default Tx timer gets us about | |
1128 | * 250 interrupts per sec. Continuous interrupts are enabled | |
1129 | * by default. | |
1130 | */ | |
1131 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1132 | int count = (nic->config.bus_speed * 125)/2; | |
1133 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1134 | } else | |
1135 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1136 | ||
1137 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
d44570e4 JP |
1138 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
1139 | TTI_DATA1_MEM_TX_URNG_C(0x30) | | |
1140 | TTI_DATA1_MEM_TX_TIMER_AC_EN; | |
ac731ab6 SH |
1141 | if (i == 0) |
1142 | if (use_continuous_tx_intrs && (link == LINK_UP)) | |
1143 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
b7c5678f RV |
1144 | writeq(val64, &bar0->tti_data1_mem); |
1145 | ||
ac731ab6 SH |
1146 | if (nic->config.intr_type == MSI_X) { |
1147 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1148 | TTI_DATA2_MEM_TX_UFC_B(0x100) | | |
1149 | TTI_DATA2_MEM_TX_UFC_C(0x200) | | |
1150 | TTI_DATA2_MEM_TX_UFC_D(0x300); | |
1151 | } else { | |
1152 | if ((nic->config.tx_steering_type == | |
d44570e4 JP |
1153 | TX_DEFAULT_STEERING) && |
1154 | (config->tx_fifo_num > 1) && | |
1155 | (i >= nic->udp_fifo_idx) && | |
1156 | (i < (nic->udp_fifo_idx + | |
1157 | nic->total_udp_fifos))) | |
ac731ab6 SH |
1158 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) | |
1159 | TTI_DATA2_MEM_TX_UFC_B(0x80) | | |
1160 | TTI_DATA2_MEM_TX_UFC_C(0x100) | | |
1161 | TTI_DATA2_MEM_TX_UFC_D(0x120); | |
1162 | else | |
1163 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1164 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
1165 | TTI_DATA2_MEM_TX_UFC_C(0x40) | | |
1166 | TTI_DATA2_MEM_TX_UFC_D(0x80); | |
1167 | } | |
b7c5678f RV |
1168 | |
1169 | writeq(val64, &bar0->tti_data2_mem); | |
1170 | ||
d44570e4 JP |
1171 | val64 = TTI_CMD_MEM_WE | |
1172 | TTI_CMD_MEM_STROBE_NEW_CMD | | |
1173 | TTI_CMD_MEM_OFFSET(i); | |
b7c5678f RV |
1174 | writeq(val64, &bar0->tti_command_mem); |
1175 | ||
1176 | if (wait_for_cmd_complete(&bar0->tti_command_mem, | |
d44570e4 JP |
1177 | TTI_CMD_MEM_STROBE_NEW_CMD, |
1178 | S2IO_BIT_RESET) != SUCCESS) | |
b7c5678f RV |
1179 | return FAILURE; |
1180 | } | |
1181 | ||
1182 | return SUCCESS; | |
1183 | } | |
1184 | ||
20346722 K |
1185 | /** |
1186 | * init_nic - Initialization of hardware | |
b7c5678f | 1187 | * @nic: device private variable |
20346722 K |
1188 | * Description: The function sequentially configures every block |
1189 | * of the H/W from their reset values. | |
1190 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
1191 | * '-1' on failure (endian settings incorrect). |
1192 | */ | |
1193 | ||
1194 | static int init_nic(struct s2io_nic *nic) | |
1195 | { | |
1ee6dd77 | 1196 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1197 | struct net_device *dev = nic->dev; |
1198 | register u64 val64 = 0; | |
1199 | void __iomem *add; | |
1200 | u32 time; | |
1201 | int i, j; | |
c92ca04b | 1202 | int dtx_cnt = 0; |
1da177e4 | 1203 | unsigned long long mem_share; |
20346722 | 1204 | int mem_size; |
ffb5df6c JP |
1205 | struct config_param *config = &nic->config; |
1206 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 | 1207 | |
5e25b9dd | 1208 | /* to set the swapper controle on the card */ |
d44570e4 JP |
1209 | if (s2io_set_swapper(nic)) { |
1210 | DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n"); | |
9f74ffde | 1211 | return -EIO; |
1da177e4 LT |
1212 | } |
1213 | ||
541ae68f K |
1214 | /* |
1215 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
1216 | */ | |
1217 | if (nic->device_type & XFRAME_II_DEVICE) { | |
1218 | val64 = 0xA500000000ULL; | |
1219 | writeq(val64, &bar0->sw_reset); | |
1220 | msleep(500); | |
1221 | val64 = readq(&bar0->sw_reset); | |
1222 | } | |
1223 | ||
1da177e4 LT |
1224 | /* Remove XGXS from reset state */ |
1225 | val64 = 0; | |
1226 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 1227 | msleep(500); |
20346722 | 1228 | val64 = readq(&bar0->sw_reset); |
1da177e4 | 1229 | |
7962024e SH |
1230 | /* Ensure that it's safe to access registers by checking |
1231 | * RIC_RUNNING bit is reset. Check is valid only for XframeII. | |
1232 | */ | |
1233 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1234 | for (i = 0; i < 50; i++) { | |
1235 | val64 = readq(&bar0->adapter_status); | |
1236 | if (!(val64 & ADAPTER_STATUS_RIC_RUNNING)) | |
1237 | break; | |
1238 | msleep(10); | |
1239 | } | |
1240 | if (i == 50) | |
1241 | return -ENODEV; | |
1242 | } | |
1243 | ||
1da177e4 LT |
1244 | /* Enable Receiving broadcasts */ |
1245 | add = &bar0->mac_cfg; | |
1246 | val64 = readq(&bar0->mac_cfg); | |
1247 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
1248 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 1249 | writel((u32)val64, add); |
1da177e4 LT |
1250 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
1251 | writel((u32) (val64 >> 32), (add + 4)); | |
1252 | ||
1253 | /* Read registers in all blocks */ | |
1254 | val64 = readq(&bar0->mac_int_mask); | |
1255 | val64 = readq(&bar0->mc_int_mask); | |
1256 | val64 = readq(&bar0->xgxs_int_mask); | |
1257 | ||
1258 | /* Set MTU */ | |
1259 | val64 = dev->mtu; | |
1260 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
1261 | ||
541ae68f K |
1262 | if (nic->device_type & XFRAME_II_DEVICE) { |
1263 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 1264 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 1265 | &bar0->dtx_control, UF); |
541ae68f K |
1266 | if (dtx_cnt & 0x1) |
1267 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1268 | dtx_cnt++; |
1269 | } | |
541ae68f | 1270 | } else { |
c92ca04b AR |
1271 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1272 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1273 | &bar0->dtx_control, UF); | |
1274 | val64 = readq(&bar0->dtx_control); | |
1275 | dtx_cnt++; | |
1da177e4 LT |
1276 | } |
1277 | } | |
1278 | ||
1279 | /* Tx DMA Initialization */ | |
1280 | val64 = 0; | |
1281 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1282 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1283 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1284 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1285 | ||
1da177e4 | 1286 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
1287 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
1288 | ||
1289 | val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) | | |
1290 | vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3); | |
1da177e4 LT |
1291 | |
1292 | if (i == (config->tx_fifo_num - 1)) { | |
1293 | if (i % 2 == 0) | |
1294 | i++; | |
1295 | } | |
1296 | ||
1297 | switch (i) { | |
1298 | case 1: | |
1299 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1300 | val64 = 0; | |
b7c5678f | 1301 | j = 0; |
1da177e4 LT |
1302 | break; |
1303 | case 3: | |
1304 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1305 | val64 = 0; | |
b7c5678f | 1306 | j = 0; |
1da177e4 LT |
1307 | break; |
1308 | case 5: | |
1309 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1310 | val64 = 0; | |
b7c5678f | 1311 | j = 0; |
1da177e4 LT |
1312 | break; |
1313 | case 7: | |
1314 | writeq(val64, &bar0->tx_fifo_partition_3); | |
b7c5678f RV |
1315 | val64 = 0; |
1316 | j = 0; | |
1317 | break; | |
1318 | default: | |
1319 | j++; | |
1da177e4 LT |
1320 | break; |
1321 | } | |
1322 | } | |
1323 | ||
5e25b9dd K |
1324 | /* |
1325 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1326 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1327 | */ | |
d44570e4 | 1328 | if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4)) |
5e25b9dd K |
1329 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1330 | ||
1da177e4 LT |
1331 | val64 = readq(&bar0->tx_fifo_partition_0); |
1332 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
d44570e4 | 1333 | &bar0->tx_fifo_partition_0, (unsigned long long)val64); |
1da177e4 | 1334 | |
20346722 K |
1335 | /* |
1336 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1337 | * integrity checking. |
1338 | */ | |
1339 | val64 = readq(&bar0->tx_pa_cfg); | |
d44570e4 JP |
1340 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | |
1341 | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1342 | TX_PA_CFG_IGNORE_LLC_CTRL | | |
1343 | TX_PA_CFG_IGNORE_L2_ERR; | |
1da177e4 LT |
1344 | writeq(val64, &bar0->tx_pa_cfg); |
1345 | ||
1346 | /* Rx DMA intialization. */ | |
1347 | val64 = 0; | |
1348 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
1349 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
1350 | ||
1351 | val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3); | |
1da177e4 LT |
1352 | } |
1353 | writeq(val64, &bar0->rx_queue_priority); | |
1354 | ||
20346722 K |
1355 | /* |
1356 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1357 | * configured Rings. |
1358 | */ | |
1359 | val64 = 0; | |
541ae68f K |
1360 | if (nic->device_type & XFRAME_II_DEVICE) |
1361 | mem_size = 32; | |
1362 | else | |
1363 | mem_size = 64; | |
1364 | ||
1da177e4 LT |
1365 | for (i = 0; i < config->rx_ring_num; i++) { |
1366 | switch (i) { | |
1367 | case 0: | |
20346722 K |
1368 | mem_share = (mem_size / config->rx_ring_num + |
1369 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1370 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1371 | continue; | |
1372 | case 1: | |
20346722 | 1373 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1374 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1375 | continue; | |
1376 | case 2: | |
20346722 | 1377 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1378 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1379 | continue; | |
1380 | case 3: | |
20346722 | 1381 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1382 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1383 | continue; | |
1384 | case 4: | |
20346722 | 1385 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1386 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1387 | continue; | |
1388 | case 5: | |
20346722 | 1389 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1390 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1391 | continue; | |
1392 | case 6: | |
20346722 | 1393 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1394 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1395 | continue; | |
1396 | case 7: | |
20346722 | 1397 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1398 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1399 | continue; | |
1400 | } | |
1401 | } | |
1402 | writeq(val64, &bar0->rx_queue_cfg); | |
1403 | ||
20346722 | 1404 | /* |
5e25b9dd | 1405 | * Filling Tx round robin registers |
b7c5678f | 1406 | * as per the number of FIFOs for equal scheduling priority |
1da177e4 | 1407 | */ |
5e25b9dd K |
1408 | switch (config->tx_fifo_num) { |
1409 | case 1: | |
b7c5678f | 1410 | val64 = 0x0; |
5e25b9dd K |
1411 | writeq(val64, &bar0->tx_w_round_robin_0); |
1412 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1413 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1414 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1415 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1416 | break; | |
1417 | case 2: | |
b7c5678f | 1418 | val64 = 0x0001000100010001ULL; |
5e25b9dd | 1419 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1420 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1421 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1422 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1423 | val64 = 0x0001000100000000ULL; |
5e25b9dd K |
1424 | writeq(val64, &bar0->tx_w_round_robin_4); |
1425 | break; | |
1426 | case 3: | |
b7c5678f | 1427 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1428 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1429 | val64 = 0x0200010200010200ULL; |
5e25b9dd | 1430 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1431 | val64 = 0x0102000102000102ULL; |
5e25b9dd | 1432 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1433 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1434 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1435 | val64 = 0x0200010200000000ULL; |
5e25b9dd K |
1436 | writeq(val64, &bar0->tx_w_round_robin_4); |
1437 | break; | |
1438 | case 4: | |
b7c5678f | 1439 | val64 = 0x0001020300010203ULL; |
5e25b9dd | 1440 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1441 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1442 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1443 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1444 | val64 = 0x0001020300000000ULL; |
5e25b9dd K |
1445 | writeq(val64, &bar0->tx_w_round_robin_4); |
1446 | break; | |
1447 | case 5: | |
b7c5678f | 1448 | val64 = 0x0001020304000102ULL; |
5e25b9dd | 1449 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1450 | val64 = 0x0304000102030400ULL; |
5e25b9dd | 1451 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1452 | val64 = 0x0102030400010203ULL; |
5e25b9dd | 1453 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1454 | val64 = 0x0400010203040001ULL; |
5e25b9dd | 1455 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1456 | val64 = 0x0203040000000000ULL; |
5e25b9dd K |
1457 | writeq(val64, &bar0->tx_w_round_robin_4); |
1458 | break; | |
1459 | case 6: | |
b7c5678f | 1460 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1461 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1462 | val64 = 0x0203040500010203ULL; |
5e25b9dd | 1463 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1464 | val64 = 0x0405000102030405ULL; |
5e25b9dd | 1465 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1466 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1467 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1468 | val64 = 0x0203040500000000ULL; |
5e25b9dd K |
1469 | writeq(val64, &bar0->tx_w_round_robin_4); |
1470 | break; | |
1471 | case 7: | |
b7c5678f | 1472 | val64 = 0x0001020304050600ULL; |
5e25b9dd | 1473 | writeq(val64, &bar0->tx_w_round_robin_0); |
b7c5678f | 1474 | val64 = 0x0102030405060001ULL; |
5e25b9dd | 1475 | writeq(val64, &bar0->tx_w_round_robin_1); |
b7c5678f | 1476 | val64 = 0x0203040506000102ULL; |
5e25b9dd | 1477 | writeq(val64, &bar0->tx_w_round_robin_2); |
b7c5678f | 1478 | val64 = 0x0304050600010203ULL; |
5e25b9dd | 1479 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1480 | val64 = 0x0405060000000000ULL; |
5e25b9dd K |
1481 | writeq(val64, &bar0->tx_w_round_robin_4); |
1482 | break; | |
1483 | case 8: | |
b7c5678f | 1484 | val64 = 0x0001020304050607ULL; |
5e25b9dd | 1485 | writeq(val64, &bar0->tx_w_round_robin_0); |
5e25b9dd | 1486 | writeq(val64, &bar0->tx_w_round_robin_1); |
5e25b9dd | 1487 | writeq(val64, &bar0->tx_w_round_robin_2); |
5e25b9dd | 1488 | writeq(val64, &bar0->tx_w_round_robin_3); |
b7c5678f | 1489 | val64 = 0x0001020300000000ULL; |
5e25b9dd K |
1490 | writeq(val64, &bar0->tx_w_round_robin_4); |
1491 | break; | |
1492 | } | |
1493 | ||
b41477f3 | 1494 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1495 | val64 = readq(&bar0->tx_fifo_partition_0); |
1496 | val64 |= (TX_FIFO_PARTITION_EN); | |
1497 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1498 | ||
5e25b9dd | 1499 | /* Filling the Rx round robin registers as per the |
0425b46a SH |
1500 | * number of Rings and steering based on QoS with |
1501 | * equal priority. | |
1502 | */ | |
5e25b9dd K |
1503 | switch (config->rx_ring_num) { |
1504 | case 1: | |
0425b46a SH |
1505 | val64 = 0x0; |
1506 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1507 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1508 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1509 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1510 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1511 | ||
5e25b9dd K |
1512 | val64 = 0x8080808080808080ULL; |
1513 | writeq(val64, &bar0->rts_qos_steering); | |
1514 | break; | |
1515 | case 2: | |
0425b46a | 1516 | val64 = 0x0001000100010001ULL; |
5e25b9dd | 1517 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1518 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1519 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1520 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1521 | val64 = 0x0001000100000000ULL; |
5e25b9dd K |
1522 | writeq(val64, &bar0->rx_w_round_robin_4); |
1523 | ||
1524 | val64 = 0x8080808040404040ULL; | |
1525 | writeq(val64, &bar0->rts_qos_steering); | |
1526 | break; | |
1527 | case 3: | |
0425b46a | 1528 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1529 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1530 | val64 = 0x0200010200010200ULL; |
5e25b9dd | 1531 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1532 | val64 = 0x0102000102000102ULL; |
5e25b9dd | 1533 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1534 | val64 = 0x0001020001020001ULL; |
5e25b9dd | 1535 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1536 | val64 = 0x0200010200000000ULL; |
5e25b9dd K |
1537 | writeq(val64, &bar0->rx_w_round_robin_4); |
1538 | ||
1539 | val64 = 0x8080804040402020ULL; | |
1540 | writeq(val64, &bar0->rts_qos_steering); | |
1541 | break; | |
1542 | case 4: | |
0425b46a | 1543 | val64 = 0x0001020300010203ULL; |
5e25b9dd | 1544 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1545 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1546 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1547 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1548 | val64 = 0x0001020300000000ULL; |
5e25b9dd K |
1549 | writeq(val64, &bar0->rx_w_round_robin_4); |
1550 | ||
1551 | val64 = 0x8080404020201010ULL; | |
1552 | writeq(val64, &bar0->rts_qos_steering); | |
1553 | break; | |
1554 | case 5: | |
0425b46a | 1555 | val64 = 0x0001020304000102ULL; |
5e25b9dd | 1556 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1557 | val64 = 0x0304000102030400ULL; |
5e25b9dd | 1558 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1559 | val64 = 0x0102030400010203ULL; |
5e25b9dd | 1560 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1561 | val64 = 0x0400010203040001ULL; |
5e25b9dd | 1562 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1563 | val64 = 0x0203040000000000ULL; |
5e25b9dd K |
1564 | writeq(val64, &bar0->rx_w_round_robin_4); |
1565 | ||
1566 | val64 = 0x8080404020201008ULL; | |
1567 | writeq(val64, &bar0->rts_qos_steering); | |
1568 | break; | |
1569 | case 6: | |
0425b46a | 1570 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1571 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1572 | val64 = 0x0203040500010203ULL; |
5e25b9dd | 1573 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1574 | val64 = 0x0405000102030405ULL; |
5e25b9dd | 1575 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1576 | val64 = 0x0001020304050001ULL; |
5e25b9dd | 1577 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1578 | val64 = 0x0203040500000000ULL; |
5e25b9dd K |
1579 | writeq(val64, &bar0->rx_w_round_robin_4); |
1580 | ||
1581 | val64 = 0x8080404020100804ULL; | |
1582 | writeq(val64, &bar0->rts_qos_steering); | |
1583 | break; | |
1584 | case 7: | |
0425b46a | 1585 | val64 = 0x0001020304050600ULL; |
5e25b9dd | 1586 | writeq(val64, &bar0->rx_w_round_robin_0); |
0425b46a | 1587 | val64 = 0x0102030405060001ULL; |
5e25b9dd | 1588 | writeq(val64, &bar0->rx_w_round_robin_1); |
0425b46a | 1589 | val64 = 0x0203040506000102ULL; |
5e25b9dd | 1590 | writeq(val64, &bar0->rx_w_round_robin_2); |
0425b46a | 1591 | val64 = 0x0304050600010203ULL; |
5e25b9dd | 1592 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1593 | val64 = 0x0405060000000000ULL; |
5e25b9dd K |
1594 | writeq(val64, &bar0->rx_w_round_robin_4); |
1595 | ||
1596 | val64 = 0x8080402010080402ULL; | |
1597 | writeq(val64, &bar0->rts_qos_steering); | |
1598 | break; | |
1599 | case 8: | |
0425b46a | 1600 | val64 = 0x0001020304050607ULL; |
5e25b9dd | 1601 | writeq(val64, &bar0->rx_w_round_robin_0); |
5e25b9dd | 1602 | writeq(val64, &bar0->rx_w_round_robin_1); |
5e25b9dd | 1603 | writeq(val64, &bar0->rx_w_round_robin_2); |
5e25b9dd | 1604 | writeq(val64, &bar0->rx_w_round_robin_3); |
0425b46a | 1605 | val64 = 0x0001020300000000ULL; |
5e25b9dd K |
1606 | writeq(val64, &bar0->rx_w_round_robin_4); |
1607 | ||
1608 | val64 = 0x8040201008040201ULL; | |
1609 | writeq(val64, &bar0->rts_qos_steering); | |
1610 | break; | |
1611 | } | |
1da177e4 LT |
1612 | |
1613 | /* UDP Fix */ | |
1614 | val64 = 0; | |
20346722 | 1615 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1616 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1617 | ||
5e25b9dd K |
1618 | /* Set the default rts frame length for the rings configured */ |
1619 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1620 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1621 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1622 | ||
1623 | /* Set the frame length for the configured rings | |
1624 | * desired by the user | |
1625 | */ | |
1626 | for (i = 0; i < config->rx_ring_num; i++) { | |
1627 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1628 | * specified frame length steering. | |
1629 | * If the user provides the frame length then program | |
1630 | * the rts_frm_len register for those values or else | |
1631 | * leave it as it is. | |
1632 | */ | |
1633 | if (rts_frm_len[i] != 0) { | |
1634 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
d44570e4 | 1635 | &bar0->rts_frm_len_n[i]); |
5e25b9dd K |
1636 | } |
1637 | } | |
8a4bdbaa | 1638 | |
9fc93a41 SS |
1639 | /* Disable differentiated services steering logic */ |
1640 | for (i = 0; i < 64; i++) { | |
1641 | if (rts_ds_steer(nic, i, 0) == FAILURE) { | |
9e39f7c5 JP |
1642 | DBG_PRINT(ERR_DBG, |
1643 | "%s: rts_ds_steer failed on codepoint %d\n", | |
1644 | dev->name, i); | |
9f74ffde | 1645 | return -ENODEV; |
9fc93a41 SS |
1646 | } |
1647 | } | |
1648 | ||
20346722 | 1649 | /* Program statistics memory */ |
1da177e4 | 1650 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1651 | |
541ae68f K |
1652 | if (nic->device_type == XFRAME_II_DEVICE) { |
1653 | val64 = STAT_BC(0x320); | |
1654 | writeq(val64, &bar0->stat_byte_cnt); | |
1655 | } | |
1656 | ||
20346722 | 1657 | /* |
1da177e4 LT |
1658 | * Initializing the sampling rate for the device to calculate the |
1659 | * bandwidth utilization. | |
1660 | */ | |
1661 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
d44570e4 | 1662 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); |
1da177e4 LT |
1663 | writeq(val64, &bar0->mac_link_util); |
1664 | ||
20346722 K |
1665 | /* |
1666 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1667 | * Scheme. |
1668 | */ | |
1da177e4 | 1669 | |
b7c5678f RV |
1670 | /* Initialize TTI */ |
1671 | if (SUCCESS != init_tti(nic, nic->last_link_state)) | |
1672 | return -ENODEV; | |
1da177e4 | 1673 | |
8a4bdbaa SS |
1674 | /* RTI Initialization */ |
1675 | if (nic->device_type == XFRAME_II_DEVICE) { | |
541ae68f | 1676 | /* |
8a4bdbaa SS |
1677 | * Programmed to generate Apprx 500 Intrs per |
1678 | * second | |
1679 | */ | |
1680 | int count = (nic->config.bus_speed * 125)/4; | |
1681 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1682 | } else | |
1683 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1684 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
d44570e4 JP |
1685 | RTI_DATA1_MEM_RX_URNG_B(0x10) | |
1686 | RTI_DATA1_MEM_RX_URNG_C(0x30) | | |
1687 | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
8a4bdbaa SS |
1688 | |
1689 | writeq(val64, &bar0->rti_data1_mem); | |
1690 | ||
1691 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | | |
1692 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; | |
1693 | if (nic->config.intr_type == MSI_X) | |
d44570e4 JP |
1694 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | |
1695 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
8a4bdbaa | 1696 | else |
d44570e4 JP |
1697 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | |
1698 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
8a4bdbaa | 1699 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1700 | |
8a4bdbaa | 1701 | for (i = 0; i < config->rx_ring_num; i++) { |
d44570e4 JP |
1702 | val64 = RTI_CMD_MEM_WE | |
1703 | RTI_CMD_MEM_STROBE_NEW_CMD | | |
1704 | RTI_CMD_MEM_OFFSET(i); | |
8a4bdbaa | 1705 | writeq(val64, &bar0->rti_command_mem); |
1da177e4 | 1706 | |
8a4bdbaa SS |
1707 | /* |
1708 | * Once the operation completes, the Strobe bit of the | |
1709 | * command register will be reset. We poll for this | |
1710 | * particular condition. We wait for a maximum of 500ms | |
1711 | * for the operation to complete, if it's not complete | |
1712 | * by then we return error. | |
1713 | */ | |
1714 | time = 0; | |
f957bcf0 | 1715 | while (true) { |
8a4bdbaa SS |
1716 | val64 = readq(&bar0->rti_command_mem); |
1717 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) | |
1718 | break; | |
b6e3f982 | 1719 | |
8a4bdbaa | 1720 | if (time > 10) { |
9e39f7c5 | 1721 | DBG_PRINT(ERR_DBG, "%s: RTI init failed\n", |
8a4bdbaa | 1722 | dev->name); |
9f74ffde | 1723 | return -ENODEV; |
b6e3f982 | 1724 | } |
8a4bdbaa SS |
1725 | time++; |
1726 | msleep(50); | |
1da177e4 | 1727 | } |
1da177e4 LT |
1728 | } |
1729 | ||
20346722 K |
1730 | /* |
1731 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1732 | * the 8 Queues on Rx side. |
1733 | */ | |
1734 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1735 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1736 | ||
1737 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1738 | add = &bar0->mac_cfg; |
1da177e4 LT |
1739 | val64 = readq(&bar0->mac_cfg); |
1740 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1741 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1742 | writel((u32) (val64), add); | |
1743 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1744 | writel((u32) (val64 >> 32), (add + 4)); | |
1745 | val64 = readq(&bar0->mac_cfg); | |
1746 | ||
7d3d0439 RA |
1747 | /* Enable FCS stripping by adapter */ |
1748 | add = &bar0->mac_cfg; | |
1749 | val64 = readq(&bar0->mac_cfg); | |
1750 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1751 | if (nic->device_type == XFRAME_II_DEVICE) | |
1752 | writeq(val64, &bar0->mac_cfg); | |
1753 | else { | |
1754 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1755 | writel((u32) (val64), add); | |
1756 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1757 | writel((u32) (val64 >> 32), (add + 4)); | |
1758 | } | |
1759 | ||
20346722 K |
1760 | /* |
1761 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1762 | * generated by xena. |
1763 | */ | |
1764 | val64 = readq(&bar0->rmac_pause_cfg); | |
1765 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1766 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1767 | writeq(val64, &bar0->rmac_pause_cfg); | |
1768 | ||
20346722 | 1769 | /* |
1da177e4 LT |
1770 | * Set the Threshold Limit for Generating the pause frame |
1771 | * If the amount of data in any Queue exceeds ratio of | |
1772 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1773 | * pause frame is generated | |
1774 | */ | |
1775 | val64 = 0; | |
1776 | for (i = 0; i < 4; i++) { | |
d44570e4 JP |
1777 | val64 |= (((u64)0xFF00 | |
1778 | nic->mac_control.mc_pause_threshold_q0q3) | |
1779 | << (i * 2 * 8)); | |
1da177e4 LT |
1780 | } |
1781 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1782 | ||
1783 | val64 = 0; | |
1784 | for (i = 0; i < 4; i++) { | |
d44570e4 JP |
1785 | val64 |= (((u64)0xFF00 | |
1786 | nic->mac_control.mc_pause_threshold_q4q7) | |
1787 | << (i * 2 * 8)); | |
1da177e4 LT |
1788 | } |
1789 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1790 | ||
20346722 K |
1791 | /* |
1792 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1793 | * exceeded the limit pointed by shared_splits |
1794 | */ | |
1795 | val64 = readq(&bar0->pic_control); | |
1796 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1797 | writeq(val64, &bar0->pic_control); | |
1798 | ||
863c11a9 AR |
1799 | if (nic->config.bus_speed == 266) { |
1800 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1801 | writeq(0x0, &bar0->read_retry_delay); | |
1802 | writeq(0x0, &bar0->write_retry_delay); | |
1803 | } | |
1804 | ||
541ae68f K |
1805 | /* |
1806 | * Programming the Herc to split every write transaction | |
1807 | * that does not start on an ADB to reduce disconnects. | |
1808 | */ | |
1809 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1810 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1811 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1812 | writeq(val64, &bar0->misc_control); |
1813 | val64 = readq(&bar0->pic_control2); | |
b7b5a128 | 1814 | val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15)); |
863c11a9 | 1815 | writeq(val64, &bar0->pic_control2); |
541ae68f | 1816 | } |
c92ca04b AR |
1817 | if (strstr(nic->product_name, "CX4")) { |
1818 | val64 = TMAC_AVG_IPG(0x17); | |
1819 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d K |
1820 | } |
1821 | ||
1da177e4 LT |
1822 | return SUCCESS; |
1823 | } | |
a371a07d K |
1824 | #define LINK_UP_DOWN_INTERRUPT 1 |
1825 | #define MAC_RMAC_ERR_TIMER 2 | |
1826 | ||
1ee6dd77 | 1827 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d K |
1828 | { |
1829 | if (nic->device_type == XFRAME_II_DEVICE) | |
1830 | return LINK_UP_DOWN_INTERRUPT; | |
1831 | else | |
1832 | return MAC_RMAC_ERR_TIMER; | |
1833 | } | |
8116f3cf | 1834 | |
9caab458 SS |
1835 | /** |
1836 | * do_s2io_write_bits - update alarm bits in alarm register | |
1837 | * @value: alarm bits | |
1838 | * @flag: interrupt status | |
1839 | * @addr: address value | |
1840 | * Description: update alarm bits in alarm register | |
1841 | * Return Value: | |
1842 | * NONE. | |
1843 | */ | |
1844 | static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr) | |
1845 | { | |
1846 | u64 temp64; | |
1847 | ||
1848 | temp64 = readq(addr); | |
1849 | ||
d44570e4 JP |
1850 | if (flag == ENABLE_INTRS) |
1851 | temp64 &= ~((u64)value); | |
9caab458 | 1852 | else |
d44570e4 | 1853 | temp64 |= ((u64)value); |
9caab458 SS |
1854 | writeq(temp64, addr); |
1855 | } | |
1da177e4 | 1856 | |
43b7c451 | 1857 | static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag) |
9caab458 SS |
1858 | { |
1859 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
1860 | register u64 gen_int_mask = 0; | |
01e16faa | 1861 | u64 interruptible; |
9caab458 | 1862 | |
01e16faa | 1863 | writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask); |
9caab458 | 1864 | if (mask & TX_DMA_INTR) { |
9caab458 SS |
1865 | gen_int_mask |= TXDMA_INT_M; |
1866 | ||
1867 | do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT | | |
d44570e4 JP |
1868 | TXDMA_PCC_INT | TXDMA_TTI_INT | |
1869 | TXDMA_LSO_INT | TXDMA_TPA_INT | | |
1870 | TXDMA_SM_INT, flag, &bar0->txdma_int_mask); | |
9caab458 SS |
1871 | |
1872 | do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM | | |
d44570e4 JP |
1873 | PFC_MISC_0_ERR | PFC_MISC_1_ERR | |
1874 | PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag, | |
1875 | &bar0->pfc_err_mask); | |
9caab458 SS |
1876 | |
1877 | do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM | | |
d44570e4 JP |
1878 | TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR | |
1879 | TDA_PCIX_ERR, flag, &bar0->tda_err_mask); | |
9caab458 SS |
1880 | |
1881 | do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR | | |
d44570e4 JP |
1882 | PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | |
1883 | PCC_N_SERR | PCC_6_COF_OV_ERR | | |
1884 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | | |
1885 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR | | |
1886 | PCC_TXB_ECC_SG_ERR, | |
1887 | flag, &bar0->pcc_err_mask); | |
9caab458 SS |
1888 | |
1889 | do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR | | |
d44570e4 | 1890 | TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask); |
9caab458 SS |
1891 | |
1892 | do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT | | |
d44570e4 JP |
1893 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM | |
1894 | LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
1895 | flag, &bar0->lso_err_mask); | |
9caab458 SS |
1896 | |
1897 | do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP, | |
d44570e4 | 1898 | flag, &bar0->tpa_err_mask); |
9caab458 SS |
1899 | |
1900 | do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask); | |
9caab458 SS |
1901 | } |
1902 | ||
1903 | if (mask & TX_MAC_INTR) { | |
1904 | gen_int_mask |= TXMAC_INT_M; | |
1905 | do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag, | |
d44570e4 | 1906 | &bar0->mac_int_mask); |
9caab458 | 1907 | do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR | |
d44570e4 JP |
1908 | TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | |
1909 | TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR, | |
1910 | flag, &bar0->mac_tmac_err_mask); | |
9caab458 SS |
1911 | } |
1912 | ||
1913 | if (mask & TX_XGXS_INTR) { | |
1914 | gen_int_mask |= TXXGXS_INT_M; | |
1915 | do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag, | |
d44570e4 | 1916 | &bar0->xgxs_int_mask); |
9caab458 | 1917 | do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR | |
d44570e4 JP |
1918 | TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, |
1919 | flag, &bar0->xgxs_txgxs_err_mask); | |
9caab458 SS |
1920 | } |
1921 | ||
1922 | if (mask & RX_DMA_INTR) { | |
1923 | gen_int_mask |= RXDMA_INT_M; | |
1924 | do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M | | |
d44570e4 JP |
1925 | RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M, |
1926 | flag, &bar0->rxdma_int_mask); | |
9caab458 | 1927 | do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR | |
d44570e4 JP |
1928 | RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM | |
1929 | RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR | | |
1930 | RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask); | |
9caab458 | 1931 | do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn | |
d44570e4 JP |
1932 | PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn | |
1933 | PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag, | |
1934 | &bar0->prc_pcix_err_mask); | |
9caab458 | 1935 | do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR | |
d44570e4 JP |
1936 | RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag, |
1937 | &bar0->rpa_err_mask); | |
9caab458 | 1938 | do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR | |
d44570e4 JP |
1939 | RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM | |
1940 | RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR | | |
1941 | RDA_FRM_ECC_SG_ERR | | |
1942 | RDA_MISC_ERR|RDA_PCIX_ERR, | |
1943 | flag, &bar0->rda_err_mask); | |
9caab458 | 1944 | do_s2io_write_bits(RTI_SM_ERR_ALARM | |
d44570e4 JP |
1945 | RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, |
1946 | flag, &bar0->rti_err_mask); | |
9caab458 SS |
1947 | } |
1948 | ||
1949 | if (mask & RX_MAC_INTR) { | |
1950 | gen_int_mask |= RXMAC_INT_M; | |
1951 | do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag, | |
d44570e4 JP |
1952 | &bar0->mac_int_mask); |
1953 | interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR | | |
1954 | RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR | | |
1955 | RMAC_DOUBLE_ECC_ERR); | |
01e16faa SH |
1956 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) |
1957 | interruptible |= RMAC_LINK_STATE_CHANGE_INT; | |
1958 | do_s2io_write_bits(interruptible, | |
d44570e4 | 1959 | flag, &bar0->mac_rmac_err_mask); |
9caab458 SS |
1960 | } |
1961 | ||
d44570e4 | 1962 | if (mask & RX_XGXS_INTR) { |
9caab458 SS |
1963 | gen_int_mask |= RXXGXS_INT_M; |
1964 | do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag, | |
d44570e4 | 1965 | &bar0->xgxs_int_mask); |
9caab458 | 1966 | do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag, |
d44570e4 | 1967 | &bar0->xgxs_rxgxs_err_mask); |
9caab458 SS |
1968 | } |
1969 | ||
1970 | if (mask & MC_INTR) { | |
1971 | gen_int_mask |= MC_INT_M; | |
d44570e4 JP |
1972 | do_s2io_write_bits(MC_INT_MASK_MC_INT, |
1973 | flag, &bar0->mc_int_mask); | |
9caab458 | 1974 | do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG | |
d44570e4 JP |
1975 | MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag, |
1976 | &bar0->mc_err_mask); | |
9caab458 SS |
1977 | } |
1978 | nic->general_int_mask = gen_int_mask; | |
1979 | ||
1980 | /* Remove this line when alarm interrupts are enabled */ | |
1981 | nic->general_int_mask = 0; | |
1982 | } | |
d44570e4 | 1983 | |
20346722 K |
1984 | /** |
1985 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1986 | * @nic: device private variable, |
1987 | * @mask: A mask indicating which Intr block must be modified and, | |
1988 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1989 | * Description: This function will either disable or enable the interrupts | |
20346722 K |
1990 | * depending on the flag argument. The mask argument can be used to |
1991 | * enable/disable any Intr block. | |
1da177e4 LT |
1992 | * Return Value: NONE. |
1993 | */ | |
1994 | ||
1995 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1996 | { | |
1ee6dd77 | 1997 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
9caab458 SS |
1998 | register u64 temp64 = 0, intr_mask = 0; |
1999 | ||
2000 | intr_mask = nic->general_int_mask; | |
1da177e4 LT |
2001 | |
2002 | /* Top level interrupt classification */ | |
2003 | /* PIC Interrupts */ | |
9caab458 | 2004 | if (mask & TX_PIC_INTR) { |
1da177e4 | 2005 | /* Enable PIC Intrs in the general intr mask register */ |
9caab458 | 2006 | intr_mask |= TXPIC_INT_M; |
1da177e4 | 2007 | if (flag == ENABLE_INTRS) { |
20346722 | 2008 | /* |
a371a07d | 2009 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 2010 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 K |
2011 | * interrupts for now. |
2012 | * TODO | |
1da177e4 | 2013 | */ |
a371a07d | 2014 | if (s2io_link_fault_indication(nic) == |
d44570e4 | 2015 | LINK_UP_DOWN_INTERRUPT) { |
9caab458 | 2016 | do_s2io_write_bits(PIC_INT_GPIO, flag, |
d44570e4 | 2017 | &bar0->pic_int_mask); |
9caab458 | 2018 | do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag, |
d44570e4 | 2019 | &bar0->gpio_int_mask); |
9caab458 | 2020 | } else |
a371a07d | 2021 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); |
1da177e4 | 2022 | } else if (flag == DISABLE_INTRS) { |
20346722 K |
2023 | /* |
2024 | * Disable PIC Intrs in the general | |
2025 | * intr mask register | |
1da177e4 LT |
2026 | */ |
2027 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1da177e4 LT |
2028 | } |
2029 | } | |
2030 | ||
1da177e4 LT |
2031 | /* Tx traffic interrupts */ |
2032 | if (mask & TX_TRAFFIC_INTR) { | |
9caab458 | 2033 | intr_mask |= TXTRAFFIC_INT_M; |
1da177e4 | 2034 | if (flag == ENABLE_INTRS) { |
20346722 | 2035 | /* |
1da177e4 | 2036 | * Enable all the Tx side interrupts |
20346722 | 2037 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
2038 | */ |
2039 | writeq(0x0, &bar0->tx_traffic_mask); | |
2040 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
2041 | /* |
2042 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
2043 | * register. |
2044 | */ | |
2045 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1da177e4 LT |
2046 | } |
2047 | } | |
2048 | ||
2049 | /* Rx traffic interrupts */ | |
2050 | if (mask & RX_TRAFFIC_INTR) { | |
9caab458 | 2051 | intr_mask |= RXTRAFFIC_INT_M; |
1da177e4 | 2052 | if (flag == ENABLE_INTRS) { |
1da177e4 LT |
2053 | /* writing 0 Enables all 8 RX interrupt levels */ |
2054 | writeq(0x0, &bar0->rx_traffic_mask); | |
2055 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
2056 | /* |
2057 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
2058 | * register. |
2059 | */ | |
2060 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1da177e4 LT |
2061 | } |
2062 | } | |
9caab458 SS |
2063 | |
2064 | temp64 = readq(&bar0->general_int_mask); | |
2065 | if (flag == ENABLE_INTRS) | |
d44570e4 | 2066 | temp64 &= ~((u64)intr_mask); |
9caab458 SS |
2067 | else |
2068 | temp64 = DISABLE_ALL_INTRS; | |
2069 | writeq(temp64, &bar0->general_int_mask); | |
2070 | ||
2071 | nic->general_int_mask = readq(&bar0->general_int_mask); | |
1da177e4 LT |
2072 | } |
2073 | ||
19a60522 SS |
2074 | /** |
2075 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
2076 | * Return: 1 If PCC is quiescence | |
2077 | * 0 If PCC is not quiescence | |
2078 | */ | |
1ee6dd77 | 2079 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 2080 | { |
19a60522 | 2081 | int ret = 0, herc; |
1ee6dd77 | 2082 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 | 2083 | u64 val64 = readq(&bar0->adapter_status); |
8a4bdbaa | 2084 | |
19a60522 | 2085 | herc = (sp->device_type == XFRAME_II_DEVICE); |
20346722 | 2086 | |
f957bcf0 | 2087 | if (flag == false) { |
44c10138 | 2088 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
19a60522 | 2089 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2090 | ret = 1; |
19a60522 SS |
2091 | } else { |
2092 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 2093 | ret = 1; |
20346722 K |
2094 | } |
2095 | } else { | |
44c10138 | 2096 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
5e25b9dd | 2097 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 2098 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2099 | ret = 1; |
5e25b9dd K |
2100 | } else { |
2101 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 2102 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 2103 | ret = 1; |
20346722 K |
2104 | } |
2105 | } | |
2106 | ||
2107 | return ret; | |
2108 | } | |
2109 | /** | |
2110 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 2111 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 2112 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
2113 | * differs and the calling function passes the input argument flag to |
2114 | * indicate this. | |
20346722 | 2115 | * Return: 1 If xena is quiescence |
1da177e4 LT |
2116 | * 0 If Xena is not quiescence |
2117 | */ | |
2118 | ||
1ee6dd77 | 2119 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 2120 | { |
19a60522 | 2121 | int mode; |
1ee6dd77 | 2122 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
2123 | u64 val64 = readq(&bar0->adapter_status); |
2124 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 2125 | |
19a60522 | 2126 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
9e39f7c5 | 2127 | DBG_PRINT(ERR_DBG, "TDMA is not ready!\n"); |
19a60522 SS |
2128 | return 0; |
2129 | } | |
2130 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
9e39f7c5 | 2131 | DBG_PRINT(ERR_DBG, "RDMA is not ready!\n"); |
19a60522 SS |
2132 | return 0; |
2133 | } | |
2134 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
9e39f7c5 | 2135 | DBG_PRINT(ERR_DBG, "PFC is not ready!\n"); |
19a60522 SS |
2136 | return 0; |
2137 | } | |
2138 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
9e39f7c5 | 2139 | DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n"); |
19a60522 SS |
2140 | return 0; |
2141 | } | |
2142 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
9e39f7c5 | 2143 | DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n"); |
19a60522 SS |
2144 | return 0; |
2145 | } | |
2146 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
9e39f7c5 | 2147 | DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n"); |
19a60522 SS |
2148 | return 0; |
2149 | } | |
2150 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
9e39f7c5 | 2151 | DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n"); |
19a60522 SS |
2152 | return 0; |
2153 | } | |
2154 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
9e39f7c5 | 2155 | DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n"); |
19a60522 | 2156 | return 0; |
1da177e4 LT |
2157 | } |
2158 | ||
19a60522 SS |
2159 | /* |
2160 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
2161 | * the the P_PLL_LOCK bit in the adapter_status register will | |
2162 | * not be asserted. | |
2163 | */ | |
2164 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
d44570e4 JP |
2165 | sp->device_type == XFRAME_II_DEVICE && |
2166 | mode != PCI_MODE_PCI_33) { | |
9e39f7c5 | 2167 | DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n"); |
19a60522 SS |
2168 | return 0; |
2169 | } | |
2170 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
d44570e4 | 2171 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { |
9e39f7c5 | 2172 | DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n"); |
19a60522 SS |
2173 | return 0; |
2174 | } | |
2175 | return 1; | |
1da177e4 LT |
2176 | } |
2177 | ||
2178 | /** | |
2179 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
2180 | * @sp: Pointer to device specifc structure | |
20346722 | 2181 | * Description : |
1da177e4 LT |
2182 | * New procedure to clear mac address reading problems on Alpha platforms |
2183 | * | |
2184 | */ | |
2185 | ||
d44570e4 | 2186 | static void fix_mac_address(struct s2io_nic *sp) |
1da177e4 | 2187 | { |
1ee6dd77 | 2188 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
2189 | int i = 0; |
2190 | ||
2191 | while (fix_mac[i] != END_SIGN) { | |
2192 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 2193 | udelay(10); |
d83d282b | 2194 | (void) readq(&bar0->gpio_control); |
1da177e4 LT |
2195 | } |
2196 | } | |
2197 | ||
2198 | /** | |
20346722 | 2199 | * start_nic - Turns the device on |
1da177e4 | 2200 | * @nic : device private variable. |
20346722 K |
2201 | * Description: |
2202 | * This function actually turns the device on. Before this function is | |
2203 | * called,all Registers are configured from their reset states | |
2204 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
2205 | * calling this function, the device interrupts are cleared and the NIC is |
2206 | * literally switched on by writing into the adapter control register. | |
20346722 | 2207 | * Return Value: |
1da177e4 LT |
2208 | * SUCCESS on success and -1 on failure. |
2209 | */ | |
2210 | ||
2211 | static int start_nic(struct s2io_nic *nic) | |
2212 | { | |
1ee6dd77 | 2213 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
2214 | struct net_device *dev = nic->dev; |
2215 | register u64 val64 = 0; | |
20346722 | 2216 | u16 subid, i; |
ffb5df6c JP |
2217 | struct config_param *config = &nic->config; |
2218 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 LT |
2219 | |
2220 | /* PRC Initialization and configuration */ | |
2221 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2222 | struct ring_info *ring = &mac_control->rings[i]; |
2223 | ||
d44570e4 | 2224 | writeq((u64)ring->rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2225 | &bar0->prc_rxd0_n[i]); |
2226 | ||
2227 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
da6971d8 AR |
2228 | if (nic->rxd_mode == RXD_MODE_1) |
2229 | val64 |= PRC_CTRL_RC_ENABLED; | |
2230 | else | |
2231 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2232 | if (nic->device_type == XFRAME_II_DEVICE) |
2233 | val64 |= PRC_CTRL_GROUP_READS; | |
2234 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2235 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2236 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2237 | } | |
2238 | ||
da6971d8 AR |
2239 | if (nic->rxd_mode == RXD_MODE_3B) { |
2240 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2241 | val64 = readq(&bar0->rx_pa_cfg); | |
2242 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2243 | writeq(val64, &bar0->rx_pa_cfg); | |
2244 | } | |
1da177e4 | 2245 | |
926930b2 SS |
2246 | if (vlan_tag_strip == 0) { |
2247 | val64 = readq(&bar0->rx_pa_cfg); | |
2248 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
2249 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 2250 | nic->vlan_strip_flag = 0; |
926930b2 SS |
2251 | } |
2252 | ||
20346722 | 2253 | /* |
1da177e4 LT |
2254 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2255 | * for around 100ms, which is approximately the time required | |
2256 | * for the device to be ready for operation. | |
2257 | */ | |
2258 | val64 = readq(&bar0->mc_rldram_mrs); | |
2259 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2260 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2261 | val64 = readq(&bar0->mc_rldram_mrs); | |
2262 | ||
20346722 | 2263 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2264 | |
2265 | /* Enabling ECC Protection. */ | |
2266 | val64 = readq(&bar0->adapter_control); | |
2267 | val64 &= ~ADAPTER_ECC_EN; | |
2268 | writeq(val64, &bar0->adapter_control); | |
2269 | ||
20346722 K |
2270 | /* |
2271 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2272 | * it. |
2273 | */ | |
2274 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 2275 | if (!verify_xena_quiescence(nic)) { |
9e39f7c5 JP |
2276 | DBG_PRINT(ERR_DBG, "%s: device is not ready, " |
2277 | "Adapter status reads: 0x%llx\n", | |
2278 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
2279 | return FAILURE; |
2280 | } | |
2281 | ||
20346722 | 2282 | /* |
1da177e4 | 2283 | * With some switches, link might be already up at this point. |
20346722 K |
2284 | * Because of this weird behavior, when we enable laser, |
2285 | * we may not get link. We need to handle this. We cannot | |
2286 | * figure out which switch is misbehaving. So we are forced to | |
2287 | * make a global change. | |
1da177e4 LT |
2288 | */ |
2289 | ||
2290 | /* Enabling Laser. */ | |
2291 | val64 = readq(&bar0->adapter_control); | |
2292 | val64 |= ADAPTER_EOI_TX_ON; | |
2293 | writeq(val64, &bar0->adapter_control); | |
2294 | ||
c92ca04b AR |
2295 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2296 | /* | |
25985edc | 2297 | * Dont see link state interrupts initially on some switches, |
c92ca04b AR |
2298 | * so directly scheduling the link state task here. |
2299 | */ | |
2300 | schedule_work(&nic->set_link_task); | |
2301 | } | |
1da177e4 LT |
2302 | /* SXE-002: Initialize link and activity LED */ |
2303 | subid = nic->pdev->subsystem_device; | |
541ae68f K |
2304 | if (((subid & 0xFF) >= 0x07) && |
2305 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2306 | val64 = readq(&bar0->gpio_control); |
2307 | val64 |= 0x0000800000000000ULL; | |
2308 | writeq(val64, &bar0->gpio_control); | |
2309 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2310 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2311 | } |
2312 | ||
1da177e4 LT |
2313 | return SUCCESS; |
2314 | } | |
fed5eccd AR |
2315 | /** |
2316 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2317 | */ | |
d44570e4 JP |
2318 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, |
2319 | struct TxD *txdlp, int get_off) | |
fed5eccd | 2320 | { |
1ee6dd77 | 2321 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2322 | struct sk_buff *skb; |
1ee6dd77 | 2323 | struct TxD *txds; |
fed5eccd AR |
2324 | u16 j, frg_cnt; |
2325 | ||
2326 | txds = txdlp; | |
2fda096d | 2327 | if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) { |
d44570e4 JP |
2328 | pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer, |
2329 | sizeof(u64), PCI_DMA_TODEVICE); | |
fed5eccd AR |
2330 | txds++; |
2331 | } | |
2332 | ||
d44570e4 | 2333 | skb = (struct sk_buff *)((unsigned long)txds->Host_Control); |
fed5eccd | 2334 | if (!skb) { |
1ee6dd77 | 2335 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2336 | return NULL; |
2337 | } | |
d44570e4 | 2338 | pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer, |
e743d313 | 2339 | skb_headlen(skb), PCI_DMA_TODEVICE); |
fed5eccd AR |
2340 | frg_cnt = skb_shinfo(skb)->nr_frags; |
2341 | if (frg_cnt) { | |
2342 | txds++; | |
2343 | for (j = 0; j < frg_cnt; j++, txds++) { | |
9e903e08 | 2344 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; |
fed5eccd AR |
2345 | if (!txds->Buffer_Pointer) |
2346 | break; | |
d44570e4 JP |
2347 | pci_unmap_page(nic->pdev, |
2348 | (dma_addr_t)txds->Buffer_Pointer, | |
9e903e08 | 2349 | skb_frag_size(frag), PCI_DMA_TODEVICE); |
fed5eccd AR |
2350 | } |
2351 | } | |
d44570e4 JP |
2352 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
2353 | return skb; | |
fed5eccd | 2354 | } |
1da177e4 | 2355 | |
20346722 K |
2356 | /** |
2357 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2358 | * @nic : device private variable. |
20346722 | 2359 | * Description: |
1da177e4 | 2360 | * Free all queued Tx buffers. |
20346722 | 2361 | * Return Value: void |
d44570e4 | 2362 | */ |
1da177e4 LT |
2363 | |
2364 | static void free_tx_buffers(struct s2io_nic *nic) | |
2365 | { | |
2366 | struct net_device *dev = nic->dev; | |
2367 | struct sk_buff *skb; | |
1ee6dd77 | 2368 | struct TxD *txdp; |
1da177e4 | 2369 | int i, j; |
fed5eccd | 2370 | int cnt = 0; |
ffb5df6c JP |
2371 | struct config_param *config = &nic->config; |
2372 | struct mac_info *mac_control = &nic->mac_control; | |
2373 | struct stat_block *stats = mac_control->stats_info; | |
2374 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 LT |
2375 | |
2376 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
2377 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
2378 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
2fda096d | 2379 | unsigned long flags; |
13d866a9 JP |
2380 | |
2381 | spin_lock_irqsave(&fifo->tx_lock, flags); | |
2382 | for (j = 0; j < tx_cfg->fifo_len; j++) { | |
43d620c8 | 2383 | txdp = fifo->list_info[j].list_virt_addr; |
fed5eccd AR |
2384 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2385 | if (skb) { | |
ffb5df6c | 2386 | swstats->mem_freed += skb->truesize; |
fed5eccd AR |
2387 | dev_kfree_skb(skb); |
2388 | cnt++; | |
1da177e4 | 2389 | } |
1da177e4 LT |
2390 | } |
2391 | DBG_PRINT(INTR_DBG, | |
9e39f7c5 | 2392 | "%s: forcibly freeing %d skbs on FIFO%d\n", |
1da177e4 | 2393 | dev->name, cnt, i); |
13d866a9 JP |
2394 | fifo->tx_curr_get_info.offset = 0; |
2395 | fifo->tx_curr_put_info.offset = 0; | |
2396 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
1da177e4 LT |
2397 | } |
2398 | } | |
2399 | ||
20346722 K |
2400 | /** |
2401 | * stop_nic - To stop the nic | |
1da177e4 | 2402 | * @nic ; device private variable. |
20346722 K |
2403 | * Description: |
2404 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2405 | * function does. This function is called to stop the device. |
2406 | * Return Value: | |
2407 | * void. | |
2408 | */ | |
2409 | ||
2410 | static void stop_nic(struct s2io_nic *nic) | |
2411 | { | |
1ee6dd77 | 2412 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2413 | register u64 val64 = 0; |
5d3213cc | 2414 | u16 interruptible; |
1da177e4 LT |
2415 | |
2416 | /* Disable all interrupts */ | |
9caab458 | 2417 | en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS); |
e960fc5c | 2418 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
9caab458 | 2419 | interruptible |= TX_PIC_INTR; |
1da177e4 LT |
2420 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2421 | ||
5d3213cc AR |
2422 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2423 | val64 = readq(&bar0->adapter_control); | |
2424 | val64 &= ~(ADAPTER_CNTL_EN); | |
2425 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2426 | } |
2427 | ||
20346722 K |
2428 | /** |
2429 | * fill_rx_buffers - Allocates the Rx side skbs | |
0425b46a | 2430 | * @ring_info: per ring structure |
3f78d885 SH |
2431 | * @from_card_up: If this is true, we will map the buffer to get |
2432 | * the dma address for buf0 and buf1 to give it to the card. | |
2433 | * Else we will sync the already mapped buffer to give it to the card. | |
20346722 | 2434 | * Description: |
1da177e4 LT |
2435 | * The function allocates Rx side skbs and puts the physical |
2436 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2437 | * can DMA the received frame into these locations. | |
2438 | * The NIC supports 3 receive modes, viz | |
2439 | * 1. single buffer, | |
2440 | * 2. three buffer and | |
2441 | * 3. Five buffer modes. | |
20346722 K |
2442 | * Each mode defines how many fragments the received frame will be split |
2443 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2444 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2445 | * is split into 3 fragments. As of now only single buffer mode is | |
2446 | * supported. | |
2447 | * Return Value: | |
2448 | * SUCCESS on success or an appropriate -ve value on failure. | |
2449 | */ | |
8d8bb39b | 2450 | static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring, |
d44570e4 | 2451 | int from_card_up) |
1da177e4 | 2452 | { |
1da177e4 | 2453 | struct sk_buff *skb; |
1ee6dd77 | 2454 | struct RxD_t *rxdp; |
0425b46a | 2455 | int off, size, block_no, block_no1; |
1da177e4 | 2456 | u32 alloc_tab = 0; |
20346722 | 2457 | u32 alloc_cnt; |
20346722 | 2458 | u64 tmp; |
1ee6dd77 | 2459 | struct buffAdd *ba; |
1ee6dd77 | 2460 | struct RxD_t *first_rxdp = NULL; |
363dc367 | 2461 | u64 Buffer0_ptr = 0, Buffer1_ptr = 0; |
0425b46a | 2462 | int rxd_index = 0; |
6d517a27 VP |
2463 | struct RxD1 *rxdp1; |
2464 | struct RxD3 *rxdp3; | |
ffb5df6c | 2465 | struct swStat *swstats = &ring->nic->mac_control.stats_info->sw_stat; |
1da177e4 | 2466 | |
0425b46a | 2467 | alloc_cnt = ring->pkt_cnt - ring->rx_bufs_left; |
1da177e4 | 2468 | |
0425b46a | 2469 | block_no1 = ring->rx_curr_get_info.block_index; |
1da177e4 | 2470 | while (alloc_tab < alloc_cnt) { |
0425b46a | 2471 | block_no = ring->rx_curr_put_info.block_index; |
1da177e4 | 2472 | |
0425b46a SH |
2473 | off = ring->rx_curr_put_info.offset; |
2474 | ||
2475 | rxdp = ring->rx_blocks[block_no].rxds[off].virt_addr; | |
2476 | ||
2477 | rxd_index = off + 1; | |
2478 | if (block_no) | |
2479 | rxd_index += (block_no * ring->rxd_count); | |
da6971d8 | 2480 | |
7d2e3cb7 | 2481 | if ((block_no == block_no1) && |
d44570e4 JP |
2482 | (off == ring->rx_curr_get_info.offset) && |
2483 | (rxdp->Host_Control)) { | |
9e39f7c5 JP |
2484 | DBG_PRINT(INTR_DBG, "%s: Get and Put info equated\n", |
2485 | ring->dev->name); | |
1da177e4 LT |
2486 | goto end; |
2487 | } | |
0425b46a SH |
2488 | if (off && (off == ring->rxd_count)) { |
2489 | ring->rx_curr_put_info.block_index++; | |
2490 | if (ring->rx_curr_put_info.block_index == | |
d44570e4 | 2491 | ring->block_count) |
0425b46a SH |
2492 | ring->rx_curr_put_info.block_index = 0; |
2493 | block_no = ring->rx_curr_put_info.block_index; | |
2494 | off = 0; | |
2495 | ring->rx_curr_put_info.offset = off; | |
2496 | rxdp = ring->rx_blocks[block_no].block_virt_addr; | |
1da177e4 | 2497 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
0425b46a SH |
2498 | ring->dev->name, rxdp); |
2499 | ||
1da177e4 | 2500 | } |
c9fcbf47 | 2501 | |
da6971d8 | 2502 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
d44570e4 JP |
2503 | ((ring->rxd_mode == RXD_MODE_3B) && |
2504 | (rxdp->Control_2 & s2BIT(0)))) { | |
0425b46a | 2505 | ring->rx_curr_put_info.offset = off; |
1da177e4 LT |
2506 | goto end; |
2507 | } | |
da6971d8 | 2508 | /* calculate size of skb based on ring mode */ |
d44570e4 JP |
2509 | size = ring->mtu + |
2510 | HEADER_ETHERNET_II_802_3_SIZE + | |
2511 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
0425b46a | 2512 | if (ring->rxd_mode == RXD_MODE_1) |
da6971d8 | 2513 | size += NET_IP_ALIGN; |
da6971d8 | 2514 | else |
0425b46a | 2515 | size = ring->mtu + ALIGN_SIZE + BUF0_LEN + 4; |
1da177e4 | 2516 | |
da6971d8 | 2517 | /* allocate skb */ |
c056b734 | 2518 | skb = netdev_alloc_skb(nic->dev, size); |
d44570e4 | 2519 | if (!skb) { |
9e39f7c5 JP |
2520 | DBG_PRINT(INFO_DBG, "%s: Could not allocate skb\n", |
2521 | ring->dev->name); | |
303bcb4b K |
2522 | if (first_rxdp) { |
2523 | wmb(); | |
2524 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2525 | } | |
ffb5df6c | 2526 | swstats->mem_alloc_fail_cnt++; |
7d2e3cb7 | 2527 | |
da6971d8 AR |
2528 | return -ENOMEM ; |
2529 | } | |
ffb5df6c | 2530 | swstats->mem_allocated += skb->truesize; |
0425b46a SH |
2531 | |
2532 | if (ring->rxd_mode == RXD_MODE_1) { | |
da6971d8 | 2533 | /* 1 buffer mode - normal operation mode */ |
d44570e4 | 2534 | rxdp1 = (struct RxD1 *)rxdp; |
1ee6dd77 | 2535 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2536 | skb_reserve(skb, NET_IP_ALIGN); |
d44570e4 JP |
2537 | rxdp1->Buffer0_ptr = |
2538 | pci_map_single(ring->pdev, skb->data, | |
2539 | size - NET_IP_ALIGN, | |
2540 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 2541 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 | 2542 | rxdp1->Buffer0_ptr)) |
491abf25 VP |
2543 | goto pci_map_failed; |
2544 | ||
8a4bdbaa | 2545 | rxdp->Control_2 = |
491976b2 | 2546 | SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); |
d44570e4 | 2547 | rxdp->Host_Control = (unsigned long)skb; |
0425b46a | 2548 | } else if (ring->rxd_mode == RXD_MODE_3B) { |
da6971d8 | 2549 | /* |
6d517a27 VP |
2550 | * 2 buffer mode - |
2551 | * 2 buffer mode provides 128 | |
da6971d8 | 2552 | * byte aligned receive buffers. |
da6971d8 AR |
2553 | */ |
2554 | ||
d44570e4 | 2555 | rxdp3 = (struct RxD3 *)rxdp; |
491976b2 | 2556 | /* save buffer pointers to avoid frequent dma mapping */ |
6d517a27 VP |
2557 | Buffer0_ptr = rxdp3->Buffer0_ptr; |
2558 | Buffer1_ptr = rxdp3->Buffer1_ptr; | |
1ee6dd77 | 2559 | memset(rxdp, 0, sizeof(struct RxD3)); |
363dc367 | 2560 | /* restore the buffer pointers for dma sync*/ |
6d517a27 VP |
2561 | rxdp3->Buffer0_ptr = Buffer0_ptr; |
2562 | rxdp3->Buffer1_ptr = Buffer1_ptr; | |
363dc367 | 2563 | |
0425b46a | 2564 | ba = &ring->ba[block_no][off]; |
da6971d8 | 2565 | skb_reserve(skb, BUF0_LEN); |
d44570e4 | 2566 | tmp = (u64)(unsigned long)skb->data; |
da6971d8 AR |
2567 | tmp += ALIGN_SIZE; |
2568 | tmp &= ~ALIGN_SIZE; | |
2569 | skb->data = (void *) (unsigned long)tmp; | |
27a884dc | 2570 | skb_reset_tail_pointer(skb); |
da6971d8 | 2571 | |
3f78d885 | 2572 | if (from_card_up) { |
6d517a27 | 2573 | rxdp3->Buffer0_ptr = |
d44570e4 JP |
2574 | pci_map_single(ring->pdev, ba->ba_0, |
2575 | BUF0_LEN, | |
2576 | PCI_DMA_FROMDEVICE); | |
2577 | if (pci_dma_mapping_error(nic->pdev, | |
2578 | rxdp3->Buffer0_ptr)) | |
3f78d885 SH |
2579 | goto pci_map_failed; |
2580 | } else | |
0425b46a | 2581 | pci_dma_sync_single_for_device(ring->pdev, |
d44570e4 JP |
2582 | (dma_addr_t)rxdp3->Buffer0_ptr, |
2583 | BUF0_LEN, | |
2584 | PCI_DMA_FROMDEVICE); | |
491abf25 | 2585 | |
da6971d8 | 2586 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
0425b46a | 2587 | if (ring->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
2588 | /* Two buffer mode */ |
2589 | ||
2590 | /* | |
6aa20a22 | 2591 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2592 | * L4 payload |
2593 | */ | |
d44570e4 JP |
2594 | rxdp3->Buffer2_ptr = pci_map_single(ring->pdev, |
2595 | skb->data, | |
2596 | ring->mtu + 4, | |
2597 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2598 | |
8d8bb39b | 2599 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 | 2600 | rxdp3->Buffer2_ptr)) |
491abf25 VP |
2601 | goto pci_map_failed; |
2602 | ||
3f78d885 | 2603 | if (from_card_up) { |
0425b46a SH |
2604 | rxdp3->Buffer1_ptr = |
2605 | pci_map_single(ring->pdev, | |
d44570e4 JP |
2606 | ba->ba_1, |
2607 | BUF1_LEN, | |
2608 | PCI_DMA_FROMDEVICE); | |
0425b46a | 2609 | |
8d8bb39b | 2610 | if (pci_dma_mapping_error(nic->pdev, |
d44570e4 JP |
2611 | rxdp3->Buffer1_ptr)) { |
2612 | pci_unmap_single(ring->pdev, | |
2613 | (dma_addr_t)(unsigned long) | |
2614 | skb->data, | |
2615 | ring->mtu + 4, | |
2616 | PCI_DMA_FROMDEVICE); | |
3f78d885 SH |
2617 | goto pci_map_failed; |
2618 | } | |
75c30b13 | 2619 | } |
da6971d8 AR |
2620 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2621 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
d44570e4 | 2622 | (ring->mtu + 4); |
da6971d8 | 2623 | } |
b7b5a128 | 2624 | rxdp->Control_2 |= s2BIT(0); |
0425b46a | 2625 | rxdp->Host_Control = (unsigned long) (skb); |
1da177e4 | 2626 | } |
303bcb4b K |
2627 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2628 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2629 | off++; |
0425b46a | 2630 | if (off == (ring->rxd_count + 1)) |
da6971d8 | 2631 | off = 0; |
0425b46a | 2632 | ring->rx_curr_put_info.offset = off; |
20346722 | 2633 | |
da6971d8 | 2634 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b K |
2635 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2636 | if (first_rxdp) { | |
2637 | wmb(); | |
2638 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2639 | } | |
2640 | first_rxdp = rxdp; | |
2641 | } | |
0425b46a | 2642 | ring->rx_bufs_left += 1; |
1da177e4 LT |
2643 | alloc_tab++; |
2644 | } | |
2645 | ||
d44570e4 | 2646 | end: |
303bcb4b K |
2647 | /* Transfer ownership of first descriptor to adapter just before |
2648 | * exiting. Before that, use memory barrier so that ownership | |
2649 | * and other fields are seen by adapter correctly. | |
2650 | */ | |
2651 | if (first_rxdp) { | |
2652 | wmb(); | |
2653 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2654 | } | |
2655 | ||
1da177e4 | 2656 | return SUCCESS; |
d44570e4 | 2657 | |
491abf25 | 2658 | pci_map_failed: |
ffb5df6c JP |
2659 | swstats->pci_map_fail_cnt++; |
2660 | swstats->mem_freed += skb->truesize; | |
491abf25 VP |
2661 | dev_kfree_skb_irq(skb); |
2662 | return -ENOMEM; | |
1da177e4 LT |
2663 | } |
2664 | ||
da6971d8 AR |
2665 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2666 | { | |
2667 | struct net_device *dev = sp->dev; | |
2668 | int j; | |
2669 | struct sk_buff *skb; | |
1ee6dd77 | 2670 | struct RxD_t *rxdp; |
6d517a27 VP |
2671 | struct RxD1 *rxdp1; |
2672 | struct RxD3 *rxdp3; | |
ffb5df6c JP |
2673 | struct mac_info *mac_control = &sp->mac_control; |
2674 | struct stat_block *stats = mac_control->stats_info; | |
2675 | struct swStat *swstats = &stats->sw_stat; | |
da6971d8 | 2676 | |
da6971d8 AR |
2677 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { |
2678 | rxdp = mac_control->rings[ring_no]. | |
d44570e4 JP |
2679 | rx_blocks[blk].rxds[j].virt_addr; |
2680 | skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control); | |
2681 | if (!skb) | |
da6971d8 | 2682 | continue; |
da6971d8 | 2683 | if (sp->rxd_mode == RXD_MODE_1) { |
d44570e4 JP |
2684 | rxdp1 = (struct RxD1 *)rxdp; |
2685 | pci_unmap_single(sp->pdev, | |
2686 | (dma_addr_t)rxdp1->Buffer0_ptr, | |
2687 | dev->mtu + | |
2688 | HEADER_ETHERNET_II_802_3_SIZE + | |
2689 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE, | |
2690 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2691 | memset(rxdp, 0, sizeof(struct RxD1)); |
d44570e4 JP |
2692 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
2693 | rxdp3 = (struct RxD3 *)rxdp; | |
d44570e4 JP |
2694 | pci_unmap_single(sp->pdev, |
2695 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
2696 | BUF0_LEN, | |
2697 | PCI_DMA_FROMDEVICE); | |
2698 | pci_unmap_single(sp->pdev, | |
2699 | (dma_addr_t)rxdp3->Buffer1_ptr, | |
2700 | BUF1_LEN, | |
2701 | PCI_DMA_FROMDEVICE); | |
2702 | pci_unmap_single(sp->pdev, | |
2703 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
2704 | dev->mtu + 4, | |
2705 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2706 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 | 2707 | } |
ffb5df6c | 2708 | swstats->mem_freed += skb->truesize; |
da6971d8 | 2709 | dev_kfree_skb(skb); |
0425b46a | 2710 | mac_control->rings[ring_no].rx_bufs_left -= 1; |
da6971d8 AR |
2711 | } |
2712 | } | |
2713 | ||
1da177e4 | 2714 | /** |
20346722 | 2715 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2716 | * @sp: device private variable. |
20346722 | 2717 | * Description: |
1da177e4 LT |
2718 | * This function will free all Rx buffers allocated by host. |
2719 | * Return Value: | |
2720 | * NONE. | |
2721 | */ | |
2722 | ||
2723 | static void free_rx_buffers(struct s2io_nic *sp) | |
2724 | { | |
2725 | struct net_device *dev = sp->dev; | |
da6971d8 | 2726 | int i, blk = 0, buf_cnt = 0; |
ffb5df6c JP |
2727 | struct config_param *config = &sp->config; |
2728 | struct mac_info *mac_control = &sp->mac_control; | |
1da177e4 LT |
2729 | |
2730 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2731 | struct ring_info *ring = &mac_control->rings[i]; |
2732 | ||
da6971d8 | 2733 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
d44570e4 | 2734 | free_rxd_blk(sp, i, blk); |
1da177e4 | 2735 | |
13d866a9 JP |
2736 | ring->rx_curr_put_info.block_index = 0; |
2737 | ring->rx_curr_get_info.block_index = 0; | |
2738 | ring->rx_curr_put_info.offset = 0; | |
2739 | ring->rx_curr_get_info.offset = 0; | |
2740 | ring->rx_bufs_left = 0; | |
9e39f7c5 | 2741 | DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n", |
1da177e4 LT |
2742 | dev->name, buf_cnt, i); |
2743 | } | |
2744 | } | |
2745 | ||
8d8bb39b | 2746 | static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring) |
f61e0a35 | 2747 | { |
8d8bb39b | 2748 | if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) { |
9e39f7c5 JP |
2749 | DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n", |
2750 | ring->dev->name); | |
f61e0a35 SH |
2751 | } |
2752 | return 0; | |
2753 | } | |
2754 | ||
1da177e4 LT |
2755 | /** |
2756 | * s2io_poll - Rx interrupt handler for NAPI support | |
bea3348e | 2757 | * @napi : pointer to the napi structure. |
20346722 | 2758 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2759 | * during one pass through the 'Poll" function. |
2760 | * Description: | |
2761 | * Comes into picture only if NAPI support has been incorporated. It does | |
2762 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2763 | * also It will process only a given number of packets. | |
2764 | * Return value: | |
2765 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2766 | */ | |
2767 | ||
f61e0a35 | 2768 | static int s2io_poll_msix(struct napi_struct *napi, int budget) |
1da177e4 | 2769 | { |
f61e0a35 SH |
2770 | struct ring_info *ring = container_of(napi, struct ring_info, napi); |
2771 | struct net_device *dev = ring->dev; | |
f61e0a35 | 2772 | int pkts_processed = 0; |
1a79d1c3 AV |
2773 | u8 __iomem *addr = NULL; |
2774 | u8 val8 = 0; | |
4cf1653a | 2775 | struct s2io_nic *nic = netdev_priv(dev); |
1ee6dd77 | 2776 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
f61e0a35 | 2777 | int budget_org = budget; |
1da177e4 | 2778 | |
f61e0a35 SH |
2779 | if (unlikely(!is_s2io_card_up(nic))) |
2780 | return 0; | |
1da177e4 | 2781 | |
f61e0a35 | 2782 | pkts_processed = rx_intr_handler(ring, budget); |
8d8bb39b | 2783 | s2io_chk_rx_buffers(nic, ring); |
1da177e4 | 2784 | |
f61e0a35 | 2785 | if (pkts_processed < budget_org) { |
288379f0 | 2786 | napi_complete(napi); |
f61e0a35 | 2787 | /*Re Enable MSI-Rx Vector*/ |
1a79d1c3 | 2788 | addr = (u8 __iomem *)&bar0->xmsi_mask_reg; |
f61e0a35 SH |
2789 | addr += 7 - ring->ring_no; |
2790 | val8 = (ring->ring_no == 0) ? 0x3f : 0xbf; | |
2791 | writeb(val8, addr); | |
2792 | val8 = readb(addr); | |
1da177e4 | 2793 | } |
f61e0a35 SH |
2794 | return pkts_processed; |
2795 | } | |
d44570e4 | 2796 | |
f61e0a35 SH |
2797 | static int s2io_poll_inta(struct napi_struct *napi, int budget) |
2798 | { | |
2799 | struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi); | |
f61e0a35 SH |
2800 | int pkts_processed = 0; |
2801 | int ring_pkts_processed, i; | |
2802 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
2803 | int budget_org = budget; | |
ffb5df6c JP |
2804 | struct config_param *config = &nic->config; |
2805 | struct mac_info *mac_control = &nic->mac_control; | |
1da177e4 | 2806 | |
f61e0a35 SH |
2807 | if (unlikely(!is_s2io_card_up(nic))) |
2808 | return 0; | |
1da177e4 | 2809 | |
1da177e4 | 2810 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 | 2811 | struct ring_info *ring = &mac_control->rings[i]; |
f61e0a35 | 2812 | ring_pkts_processed = rx_intr_handler(ring, budget); |
8d8bb39b | 2813 | s2io_chk_rx_buffers(nic, ring); |
f61e0a35 SH |
2814 | pkts_processed += ring_pkts_processed; |
2815 | budget -= ring_pkts_processed; | |
2816 | if (budget <= 0) | |
1da177e4 | 2817 | break; |
1da177e4 | 2818 | } |
f61e0a35 | 2819 | if (pkts_processed < budget_org) { |
288379f0 | 2820 | napi_complete(napi); |
f61e0a35 SH |
2821 | /* Re enable the Rx interrupts for the ring */ |
2822 | writeq(0, &bar0->rx_traffic_mask); | |
2823 | readl(&bar0->rx_traffic_mask); | |
2824 | } | |
2825 | return pkts_processed; | |
1da177e4 | 2826 | } |
20346722 | 2827 | |
b41477f3 | 2828 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2829 | /** |
b41477f3 | 2830 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2831 | * @dev : pointer to the device structure. |
2832 | * Description: | |
b41477f3 AR |
2833 | * This function will be called by upper layer to check for events on the |
2834 | * interface in situations where interrupts are disabled. It is used for | |
2835 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2836 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2837 | */ |
612eff0e BH |
2838 | static void s2io_netpoll(struct net_device *dev) |
2839 | { | |
4cf1653a | 2840 | struct s2io_nic *nic = netdev_priv(dev); |
80777c54 | 2841 | const int irq = nic->pdev->irq; |
1ee6dd77 | 2842 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2843 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e | 2844 | int i; |
ffb5df6c JP |
2845 | struct config_param *config = &nic->config; |
2846 | struct mac_info *mac_control = &nic->mac_control; | |
612eff0e | 2847 | |
d796fdb7 LV |
2848 | if (pci_channel_offline(nic->pdev)) |
2849 | return; | |
2850 | ||
80777c54 | 2851 | disable_irq(irq); |
612eff0e | 2852 | |
612eff0e | 2853 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2854 | writeq(val64, &bar0->tx_traffic_int); |
2855 | ||
6aa20a22 | 2856 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2857 | * run out of skbs and will fail and eventually netpoll application such |
2858 | * as netdump will fail. | |
2859 | */ | |
2860 | for (i = 0; i < config->tx_fifo_num; i++) | |
2861 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2862 | |
b41477f3 | 2863 | /* check for received packet and indicate up to network */ |
13d866a9 JP |
2864 | for (i = 0; i < config->rx_ring_num; i++) { |
2865 | struct ring_info *ring = &mac_control->rings[i]; | |
2866 | ||
2867 | rx_intr_handler(ring, 0); | |
2868 | } | |
612eff0e BH |
2869 | |
2870 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
2871 | struct ring_info *ring = &mac_control->rings[i]; |
2872 | ||
2873 | if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) { | |
9e39f7c5 JP |
2874 | DBG_PRINT(INFO_DBG, |
2875 | "%s: Out of memory in Rx Netpoll!!\n", | |
2876 | dev->name); | |
612eff0e BH |
2877 | break; |
2878 | } | |
2879 | } | |
80777c54 | 2880 | enable_irq(irq); |
612eff0e BH |
2881 | } |
2882 | #endif | |
2883 | ||
20346722 | 2884 | /** |
1da177e4 | 2885 | * rx_intr_handler - Rx interrupt handler |
f61e0a35 SH |
2886 | * @ring_info: per ring structure. |
2887 | * @budget: budget for napi processing. | |
20346722 K |
2888 | * Description: |
2889 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2890 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 K |
2891 | * called. It picks out the RxD at which place the last Rx processing had |
2892 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2893 | * the offset. |
2894 | * Return Value: | |
f61e0a35 | 2895 | * No. of napi packets processed. |
1da177e4 | 2896 | */ |
f61e0a35 | 2897 | static int rx_intr_handler(struct ring_info *ring_data, int budget) |
1da177e4 | 2898 | { |
c9fcbf47 | 2899 | int get_block, put_block; |
1ee6dd77 RB |
2900 | struct rx_curr_get_info get_info, put_info; |
2901 | struct RxD_t *rxdp; | |
1da177e4 | 2902 | struct sk_buff *skb; |
f61e0a35 | 2903 | int pkt_cnt = 0, napi_pkts = 0; |
7d3d0439 | 2904 | int i; |
d44570e4 JP |
2905 | struct RxD1 *rxdp1; |
2906 | struct RxD3 *rxdp3; | |
7d3d0439 | 2907 | |
99a09c26 EB |
2908 | if (budget <= 0) |
2909 | return napi_pkts; | |
2910 | ||
20346722 K |
2911 | get_info = ring_data->rx_curr_get_info; |
2912 | get_block = get_info.block_index; | |
1ee6dd77 | 2913 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2914 | put_block = put_info.block_index; |
da6971d8 | 2915 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 | 2916 | |
da6971d8 | 2917 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2918 | /* |
2919 | * If your are next to put index then it's | |
2920 | * FIFO full condition | |
2921 | */ | |
da6971d8 AR |
2922 | if ((get_block == put_block) && |
2923 | (get_info.offset + 1) == put_info.offset) { | |
0425b46a | 2924 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n", |
d44570e4 | 2925 | ring_data->dev->name); |
da6971d8 AR |
2926 | break; |
2927 | } | |
d44570e4 | 2928 | skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control); |
20346722 | 2929 | if (skb == NULL) { |
9e39f7c5 | 2930 | DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n", |
0425b46a | 2931 | ring_data->dev->name); |
f61e0a35 | 2932 | return 0; |
1da177e4 | 2933 | } |
0425b46a | 2934 | if (ring_data->rxd_mode == RXD_MODE_1) { |
d44570e4 | 2935 | rxdp1 = (struct RxD1 *)rxdp; |
0425b46a | 2936 | pci_unmap_single(ring_data->pdev, (dma_addr_t) |
d44570e4 JP |
2937 | rxdp1->Buffer0_ptr, |
2938 | ring_data->mtu + | |
2939 | HEADER_ETHERNET_II_802_3_SIZE + | |
2940 | HEADER_802_2_SIZE + | |
2941 | HEADER_SNAP_SIZE, | |
2942 | PCI_DMA_FROMDEVICE); | |
0425b46a | 2943 | } else if (ring_data->rxd_mode == RXD_MODE_3B) { |
d44570e4 JP |
2944 | rxdp3 = (struct RxD3 *)rxdp; |
2945 | pci_dma_sync_single_for_cpu(ring_data->pdev, | |
2946 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
2947 | BUF0_LEN, | |
2948 | PCI_DMA_FROMDEVICE); | |
2949 | pci_unmap_single(ring_data->pdev, | |
2950 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
2951 | ring_data->mtu + 4, | |
2952 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2953 | } |
863c11a9 | 2954 | prefetch(skb->data); |
20346722 K |
2955 | rx_osm_handler(ring_data, rxdp); |
2956 | get_info.offset++; | |
da6971d8 AR |
2957 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2958 | rxdp = ring_data->rx_blocks[get_block]. | |
d44570e4 | 2959 | rxds[get_info.offset].virt_addr; |
0425b46a | 2960 | if (get_info.offset == rxd_count[ring_data->rxd_mode]) { |
20346722 | 2961 | get_info.offset = 0; |
da6971d8 | 2962 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2963 | get_block++; |
da6971d8 AR |
2964 | if (get_block == ring_data->block_count) |
2965 | get_block = 0; | |
2966 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 K |
2967 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2968 | } | |
1da177e4 | 2969 | |
f61e0a35 SH |
2970 | if (ring_data->nic->config.napi) { |
2971 | budget--; | |
2972 | napi_pkts++; | |
2973 | if (!budget) | |
0425b46a SH |
2974 | break; |
2975 | } | |
20346722 | 2976 | pkt_cnt++; |
1da177e4 LT |
2977 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2978 | break; | |
2979 | } | |
0425b46a | 2980 | if (ring_data->lro) { |
7d3d0439 | 2981 | /* Clear all LRO sessions before exiting */ |
d44570e4 | 2982 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 2983 | struct lro *lro = &ring_data->lro0_n[i]; |
7d3d0439 | 2984 | if (lro->in_use) { |
0425b46a | 2985 | update_L3L4_header(ring_data->nic, lro); |
cdb5bf02 | 2986 | queue_rx_frame(lro->parent, lro->vlan_tag); |
7d3d0439 RA |
2987 | clear_lro_session(lro); |
2988 | } | |
2989 | } | |
2990 | } | |
d44570e4 | 2991 | return napi_pkts; |
1da177e4 | 2992 | } |
20346722 K |
2993 | |
2994 | /** | |
1da177e4 LT |
2995 | * tx_intr_handler - Transmit interrupt handler |
2996 | * @nic : device private variable | |
20346722 K |
2997 | * Description: |
2998 | * If an interrupt was raised to indicate DMA complete of the | |
2999 | * Tx packet, this function is called. It identifies the last TxD | |
3000 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
3001 | * DMA'ed into the NICs internal memory. |
3002 | * Return Value: | |
3003 | * NONE | |
3004 | */ | |
3005 | ||
1ee6dd77 | 3006 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 3007 | { |
1ee6dd77 | 3008 | struct s2io_nic *nic = fifo_data->nic; |
1ee6dd77 | 3009 | struct tx_curr_get_info get_info, put_info; |
3a3d5756 | 3010 | struct sk_buff *skb = NULL; |
1ee6dd77 | 3011 | struct TxD *txdlp; |
3a3d5756 | 3012 | int pkt_cnt = 0; |
2fda096d | 3013 | unsigned long flags = 0; |
f9046eb3 | 3014 | u8 err_mask; |
ffb5df6c JP |
3015 | struct stat_block *stats = nic->mac_control.stats_info; |
3016 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 | 3017 | |
2fda096d | 3018 | if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags)) |
d44570e4 | 3019 | return; |
2fda096d | 3020 | |
20346722 | 3021 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 | 3022 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
43d620c8 | 3023 | txdlp = fifo_data->list_info[get_info.offset].list_virt_addr; |
20346722 K |
3024 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && |
3025 | (get_info.offset != put_info.offset) && | |
3026 | (txdlp->Host_Control)) { | |
3027 | /* Check for TxD errors */ | |
3028 | if (txdlp->Control_1 & TXD_T_CODE) { | |
3029 | unsigned long long err; | |
3030 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 | 3031 | if (err & 0x1) { |
ffb5df6c | 3032 | swstats->parity_err_cnt++; |
bd1034f0 | 3033 | } |
491976b2 SH |
3034 | |
3035 | /* update t_code statistics */ | |
f9046eb3 | 3036 | err_mask = err >> 48; |
d44570e4 JP |
3037 | switch (err_mask) { |
3038 | case 2: | |
ffb5df6c | 3039 | swstats->tx_buf_abort_cnt++; |
491976b2 SH |
3040 | break; |
3041 | ||
d44570e4 | 3042 | case 3: |
ffb5df6c | 3043 | swstats->tx_desc_abort_cnt++; |
491976b2 SH |
3044 | break; |
3045 | ||
d44570e4 | 3046 | case 7: |
ffb5df6c | 3047 | swstats->tx_parity_err_cnt++; |
491976b2 SH |
3048 | break; |
3049 | ||
d44570e4 | 3050 | case 10: |
ffb5df6c | 3051 | swstats->tx_link_loss_cnt++; |
491976b2 SH |
3052 | break; |
3053 | ||
d44570e4 | 3054 | case 15: |
ffb5df6c | 3055 | swstats->tx_list_proc_err_cnt++; |
491976b2 | 3056 | break; |
d44570e4 | 3057 | } |
20346722 | 3058 | } |
1da177e4 | 3059 | |
fed5eccd | 3060 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 | 3061 | if (skb == NULL) { |
2fda096d | 3062 | spin_unlock_irqrestore(&fifo_data->tx_lock, flags); |
9e39f7c5 JP |
3063 | DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n", |
3064 | __func__); | |
20346722 K |
3065 | return; |
3066 | } | |
3a3d5756 | 3067 | pkt_cnt++; |
20346722 | 3068 | |
20346722 | 3069 | /* Updating the statistics block */ |
ffb5df6c | 3070 | swstats->mem_freed += skb->truesize; |
20346722 K |
3071 | dev_kfree_skb_irq(skb); |
3072 | ||
3073 | get_info.offset++; | |
863c11a9 AR |
3074 | if (get_info.offset == get_info.fifo_len + 1) |
3075 | get_info.offset = 0; | |
43d620c8 | 3076 | txdlp = fifo_data->list_info[get_info.offset].list_virt_addr; |
d44570e4 | 3077 | fifo_data->tx_curr_get_info.offset = get_info.offset; |
1da177e4 LT |
3078 | } |
3079 | ||
3a3d5756 | 3080 | s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq); |
2fda096d SR |
3081 | |
3082 | spin_unlock_irqrestore(&fifo_data->tx_lock, flags); | |
1da177e4 LT |
3083 | } |
3084 | ||
bd1034f0 AR |
3085 | /** |
3086 | * s2io_mdio_write - Function to write in to MDIO registers | |
3087 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3088 | * @addr : address value | |
3089 | * @value : data value | |
3090 | * @dev : pointer to net_device structure | |
3091 | * Description: | |
3092 | * This function is used to write values to the MDIO registers | |
3093 | * NONE | |
3094 | */ | |
d44570e4 JP |
3095 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, |
3096 | struct net_device *dev) | |
bd1034f0 | 3097 | { |
d44570e4 | 3098 | u64 val64; |
4cf1653a | 3099 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 3100 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
bd1034f0 | 3101 | |
d44570e4 JP |
3102 | /* address transaction */ |
3103 | val64 = MDIO_MMD_INDX_ADDR(addr) | | |
3104 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3105 | MDIO_MMS_PRT_ADDR(0x0); | |
bd1034f0 AR |
3106 | writeq(val64, &bar0->mdio_control); |
3107 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3108 | writeq(val64, &bar0->mdio_control); | |
3109 | udelay(100); | |
3110 | ||
d44570e4 JP |
3111 | /* Data transaction */ |
3112 | val64 = MDIO_MMD_INDX_ADDR(addr) | | |
3113 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3114 | MDIO_MMS_PRT_ADDR(0x0) | | |
3115 | MDIO_MDIO_DATA(value) | | |
3116 | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
bd1034f0 AR |
3117 | writeq(val64, &bar0->mdio_control); |
3118 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3119 | writeq(val64, &bar0->mdio_control); | |
3120 | udelay(100); | |
3121 | ||
d44570e4 JP |
3122 | val64 = MDIO_MMD_INDX_ADDR(addr) | |
3123 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3124 | MDIO_MMS_PRT_ADDR(0x0) | | |
3125 | MDIO_OP(MDIO_OP_READ_TRANS); | |
bd1034f0 AR |
3126 | writeq(val64, &bar0->mdio_control); |
3127 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3128 | writeq(val64, &bar0->mdio_control); | |
3129 | udelay(100); | |
bd1034f0 AR |
3130 | } |
3131 | ||
3132 | /** | |
3133 | * s2io_mdio_read - Function to write in to MDIO registers | |
3134 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3135 | * @addr : address value | |
3136 | * @dev : pointer to net_device structure | |
3137 | * Description: | |
3138 | * This function is used to read values to the MDIO registers | |
3139 | * NONE | |
3140 | */ | |
3141 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
3142 | { | |
3143 | u64 val64 = 0x0; | |
3144 | u64 rval64 = 0x0; | |
4cf1653a | 3145 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 3146 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
bd1034f0 AR |
3147 | |
3148 | /* address transaction */ | |
d44570e4 JP |
3149 | val64 = val64 | (MDIO_MMD_INDX_ADDR(addr) |
3150 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3151 | | MDIO_MMS_PRT_ADDR(0x0)); | |
bd1034f0 AR |
3152 | writeq(val64, &bar0->mdio_control); |
3153 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3154 | writeq(val64, &bar0->mdio_control); | |
3155 | udelay(100); | |
3156 | ||
3157 | /* Data transaction */ | |
d44570e4 JP |
3158 | val64 = MDIO_MMD_INDX_ADDR(addr) | |
3159 | MDIO_MMD_DEV_ADDR(mmd_type) | | |
3160 | MDIO_MMS_PRT_ADDR(0x0) | | |
3161 | MDIO_OP(MDIO_OP_READ_TRANS); | |
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 | ||
3167 | /* Read the value from regs */ | |
3168 | rval64 = readq(&bar0->mdio_control); | |
3169 | rval64 = rval64 & 0xFFFF0000; | |
3170 | rval64 = rval64 >> 16; | |
3171 | return rval64; | |
3172 | } | |
d44570e4 | 3173 | |
bd1034f0 AR |
3174 | /** |
3175 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
fbfecd37 | 3176 | * @counter : counter value to be updated |
bd1034f0 AR |
3177 | * @flag : flag to indicate the status |
3178 | * @type : counter type | |
3179 | * Description: | |
3180 | * This function is to check the status of the xpak counters value | |
3181 | * NONE | |
3182 | */ | |
3183 | ||
d44570e4 JP |
3184 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, |
3185 | u16 flag, u16 type) | |
bd1034f0 AR |
3186 | { |
3187 | u64 mask = 0x3; | |
3188 | u64 val64; | |
3189 | int i; | |
d44570e4 | 3190 | for (i = 0; i < index; i++) |
bd1034f0 AR |
3191 | mask = mask << 0x2; |
3192 | ||
d44570e4 | 3193 | if (flag > 0) { |
bd1034f0 AR |
3194 | *counter = *counter + 1; |
3195 | val64 = *regs_stat & mask; | |
3196 | val64 = val64 >> (index * 0x2); | |
3197 | val64 = val64 + 1; | |
d44570e4 JP |
3198 | if (val64 == 3) { |
3199 | switch (type) { | |
bd1034f0 | 3200 | case 1: |
9e39f7c5 JP |
3201 | DBG_PRINT(ERR_DBG, |
3202 | "Take Xframe NIC out of service.\n"); | |
3203 | DBG_PRINT(ERR_DBG, | |
3204 | "Excessive temperatures may result in premature transceiver failure.\n"); | |
d44570e4 | 3205 | break; |
bd1034f0 | 3206 | case 2: |
9e39f7c5 JP |
3207 | DBG_PRINT(ERR_DBG, |
3208 | "Take Xframe NIC out of service.\n"); | |
3209 | DBG_PRINT(ERR_DBG, | |
3210 | "Excessive bias currents may indicate imminent laser diode failure.\n"); | |
d44570e4 | 3211 | break; |
bd1034f0 | 3212 | case 3: |
9e39f7c5 JP |
3213 | DBG_PRINT(ERR_DBG, |
3214 | "Take Xframe NIC out of service.\n"); | |
3215 | DBG_PRINT(ERR_DBG, | |
3216 | "Excessive laser output power may saturate far-end receiver.\n"); | |
d44570e4 | 3217 | break; |
bd1034f0 | 3218 | default: |
d44570e4 JP |
3219 | DBG_PRINT(ERR_DBG, |
3220 | "Incorrect XPAK Alarm type\n"); | |
bd1034f0 AR |
3221 | } |
3222 | val64 = 0x0; | |
3223 | } | |
3224 | val64 = val64 << (index * 0x2); | |
3225 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3226 | ||
3227 | } else { | |
3228 | *regs_stat = *regs_stat & (~mask); | |
3229 | } | |
3230 | } | |
3231 | ||
3232 | /** | |
3233 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3234 | * @dev : pointer to net_device struct | |
3235 | * Description: | |
3236 | * This function is to upate the status of the xpak counters value | |
3237 | * NONE | |
3238 | */ | |
3239 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3240 | { | |
3241 | u16 flag = 0x0; | |
3242 | u16 type = 0x0; | |
3243 | u16 val16 = 0x0; | |
3244 | u64 val64 = 0x0; | |
3245 | u64 addr = 0x0; | |
3246 | ||
4cf1653a | 3247 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
3248 | struct stat_block *stats = sp->mac_control.stats_info; |
3249 | struct xpakStat *xstats = &stats->xpak_stat; | |
bd1034f0 AR |
3250 | |
3251 | /* Check the communication with the MDIO slave */ | |
40239396 | 3252 | addr = MDIO_CTRL1; |
bd1034f0 | 3253 | val64 = 0x0; |
40239396 | 3254 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
d44570e4 | 3255 | if ((val64 == 0xFFFF) || (val64 == 0x0000)) { |
9e39f7c5 JP |
3256 | DBG_PRINT(ERR_DBG, |
3257 | "ERR: MDIO slave access failed - Returned %llx\n", | |
3258 | (unsigned long long)val64); | |
bd1034f0 AR |
3259 | return; |
3260 | } | |
3261 | ||
40239396 | 3262 | /* Check for the expected value of control reg 1 */ |
d44570e4 | 3263 | if (val64 != MDIO_CTRL1_SPEED10G) { |
9e39f7c5 JP |
3264 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - " |
3265 | "Returned: %llx- Expected: 0x%x\n", | |
40239396 | 3266 | (unsigned long long)val64, MDIO_CTRL1_SPEED10G); |
bd1034f0 AR |
3267 | return; |
3268 | } | |
3269 | ||
3270 | /* Loading the DOM register to MDIO register */ | |
3271 | addr = 0xA100; | |
40239396 BH |
3272 | s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev); |
3273 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); | |
bd1034f0 AR |
3274 | |
3275 | /* Reading the Alarm flags */ | |
3276 | addr = 0xA070; | |
3277 | val64 = 0x0; | |
40239396 | 3278 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
bd1034f0 AR |
3279 | |
3280 | flag = CHECKBIT(val64, 0x7); | |
3281 | type = 1; | |
ffb5df6c JP |
3282 | s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high, |
3283 | &xstats->xpak_regs_stat, | |
d44570e4 | 3284 | 0x0, flag, type); |
bd1034f0 | 3285 | |
d44570e4 | 3286 | if (CHECKBIT(val64, 0x6)) |
ffb5df6c | 3287 | xstats->alarm_transceiver_temp_low++; |
bd1034f0 AR |
3288 | |
3289 | flag = CHECKBIT(val64, 0x3); | |
3290 | type = 2; | |
ffb5df6c JP |
3291 | s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high, |
3292 | &xstats->xpak_regs_stat, | |
d44570e4 | 3293 | 0x2, flag, type); |
bd1034f0 | 3294 | |
d44570e4 | 3295 | if (CHECKBIT(val64, 0x2)) |
ffb5df6c | 3296 | xstats->alarm_laser_bias_current_low++; |
bd1034f0 AR |
3297 | |
3298 | flag = CHECKBIT(val64, 0x1); | |
3299 | type = 3; | |
ffb5df6c JP |
3300 | s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high, |
3301 | &xstats->xpak_regs_stat, | |
d44570e4 | 3302 | 0x4, flag, type); |
bd1034f0 | 3303 | |
d44570e4 | 3304 | if (CHECKBIT(val64, 0x0)) |
ffb5df6c | 3305 | xstats->alarm_laser_output_power_low++; |
bd1034f0 AR |
3306 | |
3307 | /* Reading the Warning flags */ | |
3308 | addr = 0xA074; | |
3309 | val64 = 0x0; | |
40239396 | 3310 | val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev); |
bd1034f0 | 3311 | |
d44570e4 | 3312 | if (CHECKBIT(val64, 0x7)) |
ffb5df6c | 3313 | xstats->warn_transceiver_temp_high++; |
bd1034f0 | 3314 | |
d44570e4 | 3315 | if (CHECKBIT(val64, 0x6)) |
ffb5df6c | 3316 | xstats->warn_transceiver_temp_low++; |
bd1034f0 | 3317 | |
d44570e4 | 3318 | if (CHECKBIT(val64, 0x3)) |
ffb5df6c | 3319 | xstats->warn_laser_bias_current_high++; |
bd1034f0 | 3320 | |
d44570e4 | 3321 | if (CHECKBIT(val64, 0x2)) |
ffb5df6c | 3322 | xstats->warn_laser_bias_current_low++; |
bd1034f0 | 3323 | |
d44570e4 | 3324 | if (CHECKBIT(val64, 0x1)) |
ffb5df6c | 3325 | xstats->warn_laser_output_power_high++; |
bd1034f0 | 3326 | |
d44570e4 | 3327 | if (CHECKBIT(val64, 0x0)) |
ffb5df6c | 3328 | xstats->warn_laser_output_power_low++; |
bd1034f0 AR |
3329 | } |
3330 | ||
20346722 | 3331 | /** |
1da177e4 | 3332 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3333 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3334 | * s2io_nic structure. |
20346722 K |
3335 | * Description: Function that waits for a command to Write into RMAC |
3336 | * ADDR DATA registers to be completed and returns either success or | |
3337 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3338 | * Return value: |
3339 | * SUCCESS on success and FAILURE on failure. | |
3340 | */ | |
3341 | ||
9fc93a41 | 3342 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, |
d44570e4 | 3343 | int bit_state) |
1da177e4 | 3344 | { |
9fc93a41 | 3345 | int ret = FAILURE, cnt = 0, delay = 1; |
1da177e4 LT |
3346 | u64 val64; |
3347 | ||
9fc93a41 SS |
3348 | if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET)) |
3349 | return FAILURE; | |
3350 | ||
3351 | do { | |
c92ca04b | 3352 | val64 = readq(addr); |
9fc93a41 SS |
3353 | if (bit_state == S2IO_BIT_RESET) { |
3354 | if (!(val64 & busy_bit)) { | |
3355 | ret = SUCCESS; | |
3356 | break; | |
3357 | } | |
3358 | } else { | |
2d146eb1 | 3359 | if (val64 & busy_bit) { |
9fc93a41 SS |
3360 | ret = SUCCESS; |
3361 | break; | |
3362 | } | |
1da177e4 | 3363 | } |
c92ca04b | 3364 | |
d44570e4 | 3365 | if (in_interrupt()) |
9fc93a41 | 3366 | mdelay(delay); |
c92ca04b | 3367 | else |
9fc93a41 | 3368 | msleep(delay); |
c92ca04b | 3369 | |
9fc93a41 SS |
3370 | if (++cnt >= 10) |
3371 | delay = 50; | |
3372 | } while (cnt < 20); | |
1da177e4 LT |
3373 | return ret; |
3374 | } | |
49ce9c2c | 3375 | /** |
19a60522 SS |
3376 | * check_pci_device_id - Checks if the device id is supported |
3377 | * @id : device id | |
3378 | * Description: Function to check if the pci device id is supported by driver. | |
3379 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3380 | */ | |
3381 | static u16 check_pci_device_id(u16 id) | |
3382 | { | |
3383 | switch (id) { | |
3384 | case PCI_DEVICE_ID_HERC_WIN: | |
3385 | case PCI_DEVICE_ID_HERC_UNI: | |
3386 | return XFRAME_II_DEVICE; | |
3387 | case PCI_DEVICE_ID_S2IO_UNI: | |
3388 | case PCI_DEVICE_ID_S2IO_WIN: | |
3389 | return XFRAME_I_DEVICE; | |
3390 | default: | |
3391 | return PCI_ANY_ID; | |
3392 | } | |
3393 | } | |
1da177e4 | 3394 | |
20346722 K |
3395 | /** |
3396 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3397 | * @sp : private member of the device structure. |
3398 | * Description: Function to Reset the card. This function then also | |
20346722 | 3399 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3400 | * the card reset also resets the configuration space. |
3401 | * Return value: | |
3402 | * void. | |
3403 | */ | |
3404 | ||
d44570e4 | 3405 | static void s2io_reset(struct s2io_nic *sp) |
1da177e4 | 3406 | { |
1ee6dd77 | 3407 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3408 | u64 val64; |
5e25b9dd | 3409 | u16 subid, pci_cmd; |
19a60522 SS |
3410 | int i; |
3411 | u16 val16; | |
491976b2 SH |
3412 | unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt; |
3413 | unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt; | |
ffb5df6c JP |
3414 | struct stat_block *stats; |
3415 | struct swStat *swstats; | |
491976b2 | 3416 | |
9e39f7c5 | 3417 | DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n", |
3a22813a | 3418 | __func__, pci_name(sp->pdev)); |
1da177e4 | 3419 | |
0b1f7ebe | 3420 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3421 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3422 | |
1da177e4 LT |
3423 | val64 = SW_RESET_ALL; |
3424 | writeq(val64, &bar0->sw_reset); | |
d44570e4 | 3425 | if (strstr(sp->product_name, "CX4")) |
c92ca04b | 3426 | msleep(750); |
19a60522 SS |
3427 | msleep(250); |
3428 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3429 | |
19a60522 SS |
3430 | /* Restore the PCI state saved during initialization. */ |
3431 | pci_restore_state(sp->pdev); | |
b8a623bf | 3432 | pci_save_state(sp->pdev); |
19a60522 SS |
3433 | pci_read_config_word(sp->pdev, 0x2, &val16); |
3434 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3435 | break; | |
3436 | msleep(200); | |
3437 | } | |
1da177e4 | 3438 | |
d44570e4 JP |
3439 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) |
3440 | DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__); | |
19a60522 SS |
3441 | |
3442 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3443 | ||
3444 | s2io_init_pci(sp); | |
1da177e4 | 3445 | |
20346722 K |
3446 | /* Set swapper to enable I/O register access */ |
3447 | s2io_set_swapper(sp); | |
3448 | ||
faa4f796 SH |
3449 | /* restore mac_addr entries */ |
3450 | do_s2io_restore_unicast_mc(sp); | |
3451 | ||
cc6e7c44 RA |
3452 | /* Restore the MSIX table entries from local variables */ |
3453 | restore_xmsi_data(sp); | |
3454 | ||
5e25b9dd | 3455 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3456 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3457 | /* Clear "detected parity error" bit */ |
303bcb4b | 3458 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3459 | |
303bcb4b K |
3460 | /* Clearing PCIX Ecc status register */ |
3461 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3462 | |
303bcb4b | 3463 | /* Clearing PCI_STATUS error reflected here */ |
b7b5a128 | 3464 | writeq(s2BIT(62), &bar0->txpic_int_reg); |
303bcb4b | 3465 | } |
5e25b9dd | 3466 | |
20346722 | 3467 | /* Reset device statistics maintained by OS */ |
d44570e4 | 3468 | memset(&sp->stats, 0, sizeof(struct net_device_stats)); |
8a4bdbaa | 3469 | |
ffb5df6c JP |
3470 | stats = sp->mac_control.stats_info; |
3471 | swstats = &stats->sw_stat; | |
3472 | ||
491976b2 | 3473 | /* save link up/down time/cnt, reset/memory/watchdog cnt */ |
ffb5df6c JP |
3474 | up_cnt = swstats->link_up_cnt; |
3475 | down_cnt = swstats->link_down_cnt; | |
3476 | up_time = swstats->link_up_time; | |
3477 | down_time = swstats->link_down_time; | |
3478 | reset_cnt = swstats->soft_reset_cnt; | |
3479 | mem_alloc_cnt = swstats->mem_allocated; | |
3480 | mem_free_cnt = swstats->mem_freed; | |
3481 | watchdog_cnt = swstats->watchdog_timer_cnt; | |
3482 | ||
3483 | memset(stats, 0, sizeof(struct stat_block)); | |
3484 | ||
491976b2 | 3485 | /* restore link up/down time/cnt, reset/memory/watchdog cnt */ |
ffb5df6c JP |
3486 | swstats->link_up_cnt = up_cnt; |
3487 | swstats->link_down_cnt = down_cnt; | |
3488 | swstats->link_up_time = up_time; | |
3489 | swstats->link_down_time = down_time; | |
3490 | swstats->soft_reset_cnt = reset_cnt; | |
3491 | swstats->mem_allocated = mem_alloc_cnt; | |
3492 | swstats->mem_freed = mem_free_cnt; | |
3493 | swstats->watchdog_timer_cnt = watchdog_cnt; | |
20346722 | 3494 | |
1da177e4 LT |
3495 | /* SXE-002: Configure link and activity LED to turn it off */ |
3496 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
3497 | if (((subid & 0xFF) >= 0x07) && |
3498 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3499 | val64 = readq(&bar0->gpio_control); |
3500 | val64 |= 0x0000800000000000ULL; | |
3501 | writeq(val64, &bar0->gpio_control); | |
3502 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3503 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3504 | } |
3505 | ||
541ae68f | 3506 | /* |
25985edc | 3507 | * Clear spurious ECC interrupts that would have occurred on |
541ae68f K |
3508 | * XFRAME II cards after reset. |
3509 | */ | |
3510 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3511 | val64 = readq(&bar0->pcc_err_reg); | |
3512 | writeq(val64, &bar0->pcc_err_reg); | |
3513 | } | |
3514 | ||
f957bcf0 | 3515 | sp->device_enabled_once = false; |
1da177e4 LT |
3516 | } |
3517 | ||
3518 | /** | |
20346722 K |
3519 | * s2io_set_swapper - to set the swapper controle on the card |
3520 | * @sp : private member of the device structure, | |
1da177e4 | 3521 | * pointer to the s2io_nic structure. |
20346722 | 3522 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3523 | * correctly depending on the 'endianness' of the system. |
3524 | * Return value: | |
3525 | * SUCCESS on success and FAILURE on failure. | |
3526 | */ | |
3527 | ||
d44570e4 | 3528 | static int s2io_set_swapper(struct s2io_nic *sp) |
1da177e4 LT |
3529 | { |
3530 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3531 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3532 | u64 val64, valt, valr; |
3533 | ||
20346722 | 3534 | /* |
1da177e4 LT |
3535 | * Set proper endian settings and verify the same by reading |
3536 | * the PIF Feed-back register. | |
3537 | */ | |
3538 | ||
3539 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3540 | if (val64 != 0x0123456789ABCDEFULL) { | |
3541 | int i = 0; | |
85a56498 JM |
3542 | static const u64 value[] = { |
3543 | 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3544 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3545 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3546 | 0 /* FE=0, SE=0 */ | |
3547 | }; | |
1da177e4 | 3548 | |
d44570e4 | 3549 | while (i < 4) { |
1da177e4 LT |
3550 | writeq(value[i], &bar0->swapper_ctrl); |
3551 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3552 | if (val64 == 0x0123456789ABCDEFULL) | |
3553 | break; | |
3554 | i++; | |
3555 | } | |
3556 | if (i == 4) { | |
9e39f7c5 JP |
3557 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, " |
3558 | "feedback read %llx\n", | |
3559 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
3560 | return FAILURE; |
3561 | } | |
3562 | valr = value[i]; | |
3563 | } else { | |
3564 | valr = readq(&bar0->swapper_ctrl); | |
3565 | } | |
3566 | ||
3567 | valt = 0x0123456789ABCDEFULL; | |
3568 | writeq(valt, &bar0->xmsi_address); | |
3569 | val64 = readq(&bar0->xmsi_address); | |
3570 | ||
d44570e4 | 3571 | if (val64 != valt) { |
1da177e4 | 3572 | int i = 0; |
85a56498 JM |
3573 | static const u64 value[] = { |
3574 | 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3575 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3576 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3577 | 0 /* FE=0, SE=0 */ | |
3578 | }; | |
1da177e4 | 3579 | |
d44570e4 | 3580 | while (i < 4) { |
1da177e4 LT |
3581 | writeq((value[i] | valr), &bar0->swapper_ctrl); |
3582 | writeq(valt, &bar0->xmsi_address); | |
3583 | val64 = readq(&bar0->xmsi_address); | |
d44570e4 | 3584 | if (val64 == valt) |
1da177e4 LT |
3585 | break; |
3586 | i++; | |
3587 | } | |
d44570e4 | 3588 | if (i == 4) { |
20346722 | 3589 | unsigned long long x = val64; |
9e39f7c5 JP |
3590 | DBG_PRINT(ERR_DBG, |
3591 | "Write failed, Xmsi_addr reads:0x%llx\n", x); | |
1da177e4 LT |
3592 | return FAILURE; |
3593 | } | |
3594 | } | |
3595 | val64 = readq(&bar0->swapper_ctrl); | |
3596 | val64 &= 0xFFFF000000000000ULL; | |
3597 | ||
d44570e4 | 3598 | #ifdef __BIG_ENDIAN |
20346722 K |
3599 | /* |
3600 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3601 | * big endian driver need not set anything. |
3602 | */ | |
3603 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
d44570e4 JP |
3604 | SWAPPER_CTRL_TXP_SE | |
3605 | SWAPPER_CTRL_TXD_R_FE | | |
3606 | SWAPPER_CTRL_TXD_W_FE | | |
3607 | SWAPPER_CTRL_TXF_R_FE | | |
3608 | SWAPPER_CTRL_RXD_R_FE | | |
3609 | SWAPPER_CTRL_RXD_W_FE | | |
3610 | SWAPPER_CTRL_RXF_W_FE | | |
3611 | SWAPPER_CTRL_XMSI_FE | | |
3612 | SWAPPER_CTRL_STATS_FE | | |
3613 | SWAPPER_CTRL_STATS_SE); | |
eaae7f72 | 3614 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3615 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3616 | writeq(val64, &bar0->swapper_ctrl); |
3617 | #else | |
20346722 | 3618 | /* |
1da177e4 | 3619 | * Initially we enable all bits to make it accessible by the |
20346722 | 3620 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3621 | * we want to set. |
3622 | */ | |
3623 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
d44570e4 JP |
3624 | SWAPPER_CTRL_TXP_SE | |
3625 | SWAPPER_CTRL_TXD_R_FE | | |
3626 | SWAPPER_CTRL_TXD_R_SE | | |
3627 | SWAPPER_CTRL_TXD_W_FE | | |
3628 | SWAPPER_CTRL_TXD_W_SE | | |
3629 | SWAPPER_CTRL_TXF_R_FE | | |
3630 | SWAPPER_CTRL_RXD_R_FE | | |
3631 | SWAPPER_CTRL_RXD_R_SE | | |
3632 | SWAPPER_CTRL_RXD_W_FE | | |
3633 | SWAPPER_CTRL_RXD_W_SE | | |
3634 | SWAPPER_CTRL_RXF_W_FE | | |
3635 | SWAPPER_CTRL_XMSI_FE | | |
3636 | SWAPPER_CTRL_STATS_FE | | |
3637 | SWAPPER_CTRL_STATS_SE); | |
eaae7f72 | 3638 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3639 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3640 | writeq(val64, &bar0->swapper_ctrl); |
3641 | #endif | |
3642 | val64 = readq(&bar0->swapper_ctrl); | |
3643 | ||
20346722 K |
3644 | /* |
3645 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3646 | * feedback register. |
3647 | */ | |
3648 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3649 | if (val64 != 0x0123456789ABCDEFULL) { | |
3650 | /* Endian settings are incorrect, calls for another dekko. */ | |
9e39f7c5 JP |
3651 | DBG_PRINT(ERR_DBG, |
3652 | "%s: Endian settings are wrong, feedback read %llx\n", | |
3653 | dev->name, (unsigned long long)val64); | |
1da177e4 LT |
3654 | return FAILURE; |
3655 | } | |
3656 | ||
3657 | return SUCCESS; | |
3658 | } | |
3659 | ||
1ee6dd77 | 3660 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3661 | { |
1ee6dd77 | 3662 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3663 | u64 val64; |
3664 | int ret = 0, cnt = 0; | |
3665 | ||
3666 | do { | |
3667 | val64 = readq(&bar0->xmsi_access); | |
b7b5a128 | 3668 | if (!(val64 & s2BIT(15))) |
cc6e7c44 RA |
3669 | break; |
3670 | mdelay(1); | |
3671 | cnt++; | |
d44570e4 | 3672 | } while (cnt < 5); |
cc6e7c44 RA |
3673 | if (cnt == 5) { |
3674 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3675 | ret = 1; | |
3676 | } | |
3677 | ||
3678 | return ret; | |
3679 | } | |
3680 | ||
1ee6dd77 | 3681 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3682 | { |
1ee6dd77 | 3683 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 | 3684 | u64 val64; |
f61e0a35 SH |
3685 | int i, msix_index; |
3686 | ||
f61e0a35 SH |
3687 | if (nic->device_type == XFRAME_I_DEVICE) |
3688 | return; | |
cc6e7c44 | 3689 | |
d44570e4 JP |
3690 | for (i = 0; i < MAX_REQUESTED_MSI_X; i++) { |
3691 | msix_index = (i) ? ((i-1) * 8 + 1) : 0; | |
cc6e7c44 RA |
3692 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3693 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
f61e0a35 | 3694 | val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6)); |
cc6e7c44 | 3695 | writeq(val64, &bar0->xmsi_access); |
f61e0a35 | 3696 | if (wait_for_msix_trans(nic, msix_index)) { |
9e39f7c5 JP |
3697 | DBG_PRINT(ERR_DBG, "%s: index: %d failed\n", |
3698 | __func__, msix_index); | |
cc6e7c44 RA |
3699 | continue; |
3700 | } | |
3701 | } | |
3702 | } | |
3703 | ||
1ee6dd77 | 3704 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3705 | { |
1ee6dd77 | 3706 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 | 3707 | u64 val64, addr, data; |
f61e0a35 SH |
3708 | int i, msix_index; |
3709 | ||
3710 | if (nic->device_type == XFRAME_I_DEVICE) | |
3711 | return; | |
cc6e7c44 RA |
3712 | |
3713 | /* Store and display */ | |
d44570e4 JP |
3714 | for (i = 0; i < MAX_REQUESTED_MSI_X; i++) { |
3715 | msix_index = (i) ? ((i-1) * 8 + 1) : 0; | |
f61e0a35 | 3716 | val64 = (s2BIT(15) | vBIT(msix_index, 26, 6)); |
cc6e7c44 | 3717 | writeq(val64, &bar0->xmsi_access); |
f61e0a35 | 3718 | if (wait_for_msix_trans(nic, msix_index)) { |
9e39f7c5 JP |
3719 | DBG_PRINT(ERR_DBG, "%s: index: %d failed\n", |
3720 | __func__, msix_index); | |
cc6e7c44 RA |
3721 | continue; |
3722 | } | |
3723 | addr = readq(&bar0->xmsi_address); | |
3724 | data = readq(&bar0->xmsi_data); | |
3725 | if (addr && data) { | |
3726 | nic->msix_info[i].addr = addr; | |
3727 | nic->msix_info[i].data = data; | |
3728 | } | |
3729 | } | |
3730 | } | |
3731 | ||
1ee6dd77 | 3732 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3733 | { |
1ee6dd77 | 3734 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
ac731ab6 | 3735 | u64 rx_mat; |
cc6e7c44 RA |
3736 | u16 msi_control; /* Temp variable */ |
3737 | int ret, i, j, msix_indx = 1; | |
4f870320 | 3738 | int size; |
ffb5df6c JP |
3739 | struct stat_block *stats = nic->mac_control.stats_info; |
3740 | struct swStat *swstats = &stats->sw_stat; | |
cc6e7c44 | 3741 | |
4f870320 | 3742 | size = nic->num_entries * sizeof(struct msix_entry); |
44364a03 | 3743 | nic->entries = kzalloc(size, GFP_KERNEL); |
bd684e43 | 3744 | if (!nic->entries) { |
d44570e4 JP |
3745 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
3746 | __func__); | |
ffb5df6c | 3747 | swstats->mem_alloc_fail_cnt++; |
cc6e7c44 RA |
3748 | return -ENOMEM; |
3749 | } | |
ffb5df6c | 3750 | swstats->mem_allocated += size; |
f61e0a35 | 3751 | |
4f870320 | 3752 | size = nic->num_entries * sizeof(struct s2io_msix_entry); |
44364a03 | 3753 | nic->s2io_entries = kzalloc(size, GFP_KERNEL); |
bd684e43 | 3754 | if (!nic->s2io_entries) { |
8a4bdbaa | 3755 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
d44570e4 | 3756 | __func__); |
ffb5df6c | 3757 | swstats->mem_alloc_fail_cnt++; |
cc6e7c44 | 3758 | kfree(nic->entries); |
ffb5df6c | 3759 | swstats->mem_freed |
f61e0a35 | 3760 | += (nic->num_entries * sizeof(struct msix_entry)); |
cc6e7c44 RA |
3761 | return -ENOMEM; |
3762 | } | |
ffb5df6c | 3763 | swstats->mem_allocated += size; |
cc6e7c44 | 3764 | |
ac731ab6 SH |
3765 | nic->entries[0].entry = 0; |
3766 | nic->s2io_entries[0].entry = 0; | |
3767 | nic->s2io_entries[0].in_use = MSIX_FLG; | |
3768 | nic->s2io_entries[0].type = MSIX_ALARM_TYPE; | |
3769 | nic->s2io_entries[0].arg = &nic->mac_control.fifos; | |
3770 | ||
f61e0a35 SH |
3771 | for (i = 1; i < nic->num_entries; i++) { |
3772 | nic->entries[i].entry = ((i - 1) * 8) + 1; | |
3773 | nic->s2io_entries[i].entry = ((i - 1) * 8) + 1; | |
cc6e7c44 RA |
3774 | nic->s2io_entries[i].arg = NULL; |
3775 | nic->s2io_entries[i].in_use = 0; | |
3776 | } | |
3777 | ||
8a4bdbaa | 3778 | rx_mat = readq(&bar0->rx_mat); |
f61e0a35 | 3779 | for (j = 0; j < nic->config.rx_ring_num; j++) { |
8a4bdbaa | 3780 | rx_mat |= RX_MAT_SET(j, msix_indx); |
f61e0a35 SH |
3781 | nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j]; |
3782 | nic->s2io_entries[j+1].type = MSIX_RING_TYPE; | |
3783 | nic->s2io_entries[j+1].in_use = MSIX_FLG; | |
3784 | msix_indx += 8; | |
cc6e7c44 | 3785 | } |
8a4bdbaa | 3786 | writeq(rx_mat, &bar0->rx_mat); |
f61e0a35 | 3787 | readq(&bar0->rx_mat); |
cc6e7c44 | 3788 | |
37a15ed3 AG |
3789 | ret = pci_enable_msix_range(nic->pdev, nic->entries, |
3790 | nic->num_entries, nic->num_entries); | |
c92ca04b | 3791 | /* We fail init if error or we get less vectors than min required */ |
37a15ed3 | 3792 | if (ret < 0) { |
9e39f7c5 | 3793 | DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n"); |
cc6e7c44 | 3794 | kfree(nic->entries); |
ffb5df6c JP |
3795 | swstats->mem_freed += nic->num_entries * |
3796 | sizeof(struct msix_entry); | |
cc6e7c44 | 3797 | kfree(nic->s2io_entries); |
ffb5df6c JP |
3798 | swstats->mem_freed += nic->num_entries * |
3799 | sizeof(struct s2io_msix_entry); | |
cc6e7c44 RA |
3800 | nic->entries = NULL; |
3801 | nic->s2io_entries = NULL; | |
3802 | return -ENOMEM; | |
3803 | } | |
3804 | ||
3805 | /* | |
3806 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3807 | * in the herc NIC. (Temp change, needs to be removed later) | |
3808 | */ | |
3809 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3810 | msi_control |= 0x1; /* Enable MSI */ | |
3811 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3812 | ||
3813 | return 0; | |
3814 | } | |
3815 | ||
8abc4d5b | 3816 | /* Handle software interrupt used during MSI(X) test */ |
33390a70 | 3817 | static irqreturn_t s2io_test_intr(int irq, void *dev_id) |
8abc4d5b SS |
3818 | { |
3819 | struct s2io_nic *sp = dev_id; | |
3820 | ||
3821 | sp->msi_detected = 1; | |
3822 | wake_up(&sp->msi_wait); | |
3823 | ||
3824 | return IRQ_HANDLED; | |
3825 | } | |
3826 | ||
3827 | /* Test interrupt path by forcing a a software IRQ */ | |
33390a70 | 3828 | static int s2io_test_msi(struct s2io_nic *sp) |
8abc4d5b SS |
3829 | { |
3830 | struct pci_dev *pdev = sp->pdev; | |
3831 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
3832 | int err; | |
3833 | u64 val64, saved64; | |
3834 | ||
3835 | err = request_irq(sp->entries[1].vector, s2io_test_intr, 0, | |
d44570e4 | 3836 | sp->name, sp); |
8abc4d5b SS |
3837 | if (err) { |
3838 | DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n", | |
d44570e4 | 3839 | sp->dev->name, pci_name(pdev), pdev->irq); |
8abc4d5b SS |
3840 | return err; |
3841 | } | |
3842 | ||
d44570e4 | 3843 | init_waitqueue_head(&sp->msi_wait); |
8abc4d5b SS |
3844 | sp->msi_detected = 0; |
3845 | ||
3846 | saved64 = val64 = readq(&bar0->scheduled_int_ctrl); | |
3847 | val64 |= SCHED_INT_CTRL_ONE_SHOT; | |
3848 | val64 |= SCHED_INT_CTRL_TIMER_EN; | |
3849 | val64 |= SCHED_INT_CTRL_INT2MSI(1); | |
3850 | writeq(val64, &bar0->scheduled_int_ctrl); | |
3851 | ||
3852 | wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10); | |
3853 | ||
3854 | if (!sp->msi_detected) { | |
3855 | /* MSI(X) test failed, go back to INTx mode */ | |
2450022a | 3856 | DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated " |
9e39f7c5 JP |
3857 | "using MSI(X) during test\n", |
3858 | sp->dev->name, pci_name(pdev)); | |
8abc4d5b SS |
3859 | |
3860 | err = -EOPNOTSUPP; | |
3861 | } | |
3862 | ||
3863 | free_irq(sp->entries[1].vector, sp); | |
3864 | ||
3865 | writeq(saved64, &bar0->scheduled_int_ctrl); | |
3866 | ||
3867 | return err; | |
3868 | } | |
18b2b7bd SH |
3869 | |
3870 | static void remove_msix_isr(struct s2io_nic *sp) | |
3871 | { | |
3872 | int i; | |
3873 | u16 msi_control; | |
3874 | ||
f61e0a35 | 3875 | for (i = 0; i < sp->num_entries; i++) { |
d44570e4 | 3876 | if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) { |
18b2b7bd SH |
3877 | int vector = sp->entries[i].vector; |
3878 | void *arg = sp->s2io_entries[i].arg; | |
3879 | free_irq(vector, arg); | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | kfree(sp->entries); | |
3884 | kfree(sp->s2io_entries); | |
3885 | sp->entries = NULL; | |
3886 | sp->s2io_entries = NULL; | |
3887 | ||
3888 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
3889 | msi_control &= 0xFFFE; /* Disable MSI */ | |
3890 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
3891 | ||
3892 | pci_disable_msix(sp->pdev); | |
3893 | } | |
3894 | ||
3895 | static void remove_inta_isr(struct s2io_nic *sp) | |
3896 | { | |
80777c54 | 3897 | free_irq(sp->pdev->irq, sp->dev); |
18b2b7bd SH |
3898 | } |
3899 | ||
1da177e4 LT |
3900 | /* ********************************************************* * |
3901 | * Functions defined below concern the OS part of the driver * | |
3902 | * ********************************************************* */ | |
3903 | ||
20346722 | 3904 | /** |
1da177e4 LT |
3905 | * s2io_open - open entry point of the driver |
3906 | * @dev : pointer to the device structure. | |
3907 | * Description: | |
3908 | * This function is the open entry point of the driver. It mainly calls a | |
3909 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3910 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3911 | * Return value: |
3912 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3913 | * file on failure. | |
3914 | */ | |
3915 | ||
ac1f60db | 3916 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3917 | { |
4cf1653a | 3918 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c | 3919 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
3920 | int err = 0; |
3921 | ||
20346722 K |
3922 | /* |
3923 | * Make sure you have link off by default every time | |
1da177e4 LT |
3924 | * Nic is initialized |
3925 | */ | |
3926 | netif_carrier_off(dev); | |
0b1f7ebe | 3927 | sp->last_link_state = 0; |
1da177e4 LT |
3928 | |
3929 | /* Initialize H/W and enable interrupts */ | |
c92ca04b AR |
3930 | err = s2io_card_up(sp); |
3931 | if (err) { | |
1da177e4 LT |
3932 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3933 | dev->name); | |
e6a8fee2 | 3934 | goto hw_init_failed; |
1da177e4 LT |
3935 | } |
3936 | ||
2fd37688 | 3937 | if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) { |
1da177e4 | 3938 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); |
e6a8fee2 | 3939 | s2io_card_down(sp); |
20346722 | 3940 | err = -ENODEV; |
e6a8fee2 | 3941 | goto hw_init_failed; |
1da177e4 | 3942 | } |
3a3d5756 | 3943 | s2io_start_all_tx_queue(sp); |
1da177e4 | 3944 | return 0; |
20346722 | 3945 | |
20346722 | 3946 | hw_init_failed: |
eaae7f72 | 3947 | if (sp->config.intr_type == MSI_X) { |
491976b2 | 3948 | if (sp->entries) { |
cc6e7c44 | 3949 | kfree(sp->entries); |
ffb5df6c JP |
3950 | swstats->mem_freed += sp->num_entries * |
3951 | sizeof(struct msix_entry); | |
491976b2 SH |
3952 | } |
3953 | if (sp->s2io_entries) { | |
cc6e7c44 | 3954 | kfree(sp->s2io_entries); |
ffb5df6c JP |
3955 | swstats->mem_freed += sp->num_entries * |
3956 | sizeof(struct s2io_msix_entry); | |
491976b2 | 3957 | } |
cc6e7c44 | 3958 | } |
20346722 | 3959 | return err; |
1da177e4 LT |
3960 | } |
3961 | ||
3962 | /** | |
3963 | * s2io_close -close entry point of the driver | |
3964 | * @dev : device pointer. | |
3965 | * Description: | |
3966 | * This is the stop entry point of the driver. It needs to undo exactly | |
3967 | * whatever was done by the open entry point,thus it's usually referred to | |
3968 | * as the close function.Among other things this function mainly stops the | |
3969 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3970 | * Return value: | |
3971 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3972 | * file on failure. | |
3973 | */ | |
3974 | ||
ac1f60db | 3975 | static int s2io_close(struct net_device *dev) |
1da177e4 | 3976 | { |
4cf1653a | 3977 | struct s2io_nic *sp = netdev_priv(dev); |
faa4f796 SH |
3978 | struct config_param *config = &sp->config; |
3979 | u64 tmp64; | |
3980 | int offset; | |
cc6e7c44 | 3981 | |
9f74ffde | 3982 | /* Return if the device is already closed * |
d44570e4 JP |
3983 | * Can happen when s2io_card_up failed in change_mtu * |
3984 | */ | |
9f74ffde SH |
3985 | if (!is_s2io_card_up(sp)) |
3986 | return 0; | |
3987 | ||
3a3d5756 | 3988 | s2io_stop_all_tx_queue(sp); |
faa4f796 SH |
3989 | /* delete all populated mac entries */ |
3990 | for (offset = 1; offset < config->max_mc_addr; offset++) { | |
3991 | tmp64 = do_s2io_read_unicast_mc(sp, offset); | |
3992 | if (tmp64 != S2IO_DISABLE_MAC_ENTRY) | |
3993 | do_s2io_delete_unicast_mc(sp, tmp64); | |
3994 | } | |
3995 | ||
e6a8fee2 | 3996 | s2io_card_down(sp); |
cc6e7c44 | 3997 | |
1da177e4 LT |
3998 | return 0; |
3999 | } | |
4000 | ||
4001 | /** | |
4002 | * s2io_xmit - Tx entry point of te driver | |
4003 | * @skb : the socket buffer containing the Tx data. | |
4004 | * @dev : device pointer. | |
4005 | * Description : | |
4006 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
4007 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
25985edc | 4008 | * NOTE: when device can't queue the pkt,just the trans_start variable will |
1da177e4 LT |
4009 | * not be upadted. |
4010 | * Return value: | |
4011 | * 0 on success & 1 on failure. | |
4012 | */ | |
4013 | ||
61357325 | 4014 | static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 4015 | { |
4cf1653a | 4016 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
4017 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
4018 | register u64 val64; | |
1ee6dd77 RB |
4019 | struct TxD *txdp; |
4020 | struct TxFIFO_element __iomem *tx_fifo; | |
2fda096d | 4021 | unsigned long flags = 0; |
be3a6b02 | 4022 | u16 vlan_tag = 0; |
2fda096d | 4023 | struct fifo_info *fifo = NULL; |
6cfc482b | 4024 | int do_spin_lock = 1; |
75c30b13 | 4025 | int offload_type; |
6cfc482b | 4026 | int enable_per_list_interrupt = 0; |
ffb5df6c JP |
4027 | struct config_param *config = &sp->config; |
4028 | struct mac_info *mac_control = &sp->mac_control; | |
4029 | struct stat_block *stats = mac_control->stats_info; | |
4030 | struct swStat *swstats = &stats->sw_stat; | |
1da177e4 | 4031 | |
20346722 | 4032 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
491976b2 SH |
4033 | |
4034 | if (unlikely(skb->len <= 0)) { | |
9e39f7c5 | 4035 | DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name); |
491976b2 | 4036 | dev_kfree_skb_any(skb); |
6ed10654 | 4037 | return NETDEV_TX_OK; |
2fda096d | 4038 | } |
491976b2 | 4039 | |
92b84437 | 4040 | if (!is_s2io_card_up(sp)) { |
20346722 | 4041 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 | 4042 | dev->name); |
e6d26bd0 | 4043 | dev_kfree_skb_any(skb); |
6ed10654 | 4044 | return NETDEV_TX_OK; |
1da177e4 LT |
4045 | } |
4046 | ||
4047 | queue = 0; | |
eab6d18d | 4048 | if (vlan_tx_tag_present(skb)) |
be3a6b02 | 4049 | vlan_tag = vlan_tx_tag_get(skb); |
6cfc482b SH |
4050 | if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) { |
4051 | if (skb->protocol == htons(ETH_P_IP)) { | |
4052 | struct iphdr *ip; | |
4053 | struct tcphdr *th; | |
4054 | ip = ip_hdr(skb); | |
4055 | ||
56f8a75c | 4056 | if (!ip_is_fragment(ip)) { |
6cfc482b | 4057 | th = (struct tcphdr *)(((unsigned char *)ip) + |
d44570e4 | 4058 | ip->ihl*4); |
6cfc482b SH |
4059 | |
4060 | if (ip->protocol == IPPROTO_TCP) { | |
4061 | queue_len = sp->total_tcp_fifos; | |
4062 | queue = (ntohs(th->source) + | |
d44570e4 JP |
4063 | ntohs(th->dest)) & |
4064 | sp->fifo_selector[queue_len - 1]; | |
6cfc482b SH |
4065 | if (queue >= queue_len) |
4066 | queue = queue_len - 1; | |
4067 | } else if (ip->protocol == IPPROTO_UDP) { | |
4068 | queue_len = sp->total_udp_fifos; | |
4069 | queue = (ntohs(th->source) + | |
d44570e4 JP |
4070 | ntohs(th->dest)) & |
4071 | sp->fifo_selector[queue_len - 1]; | |
6cfc482b SH |
4072 | if (queue >= queue_len) |
4073 | queue = queue_len - 1; | |
4074 | queue += sp->udp_fifo_idx; | |
4075 | if (skb->len > 1024) | |
4076 | enable_per_list_interrupt = 1; | |
4077 | do_spin_lock = 0; | |
4078 | } | |
4079 | } | |
4080 | } | |
4081 | } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING) | |
4082 | /* get fifo number based on skb->priority value */ | |
4083 | queue = config->fifo_mapping | |
d44570e4 | 4084 | [skb->priority & (MAX_TX_FIFOS - 1)]; |
6cfc482b | 4085 | fifo = &mac_control->fifos[queue]; |
3a3d5756 | 4086 | |
6cfc482b SH |
4087 | if (do_spin_lock) |
4088 | spin_lock_irqsave(&fifo->tx_lock, flags); | |
4089 | else { | |
4090 | if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags))) | |
4091 | return NETDEV_TX_LOCKED; | |
4092 | } | |
be3a6b02 | 4093 | |
3a3d5756 SH |
4094 | if (sp->config.multiq) { |
4095 | if (__netif_subqueue_stopped(dev, fifo->fifo_no)) { | |
4096 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
4097 | return NETDEV_TX_BUSY; | |
4098 | } | |
b19fa1fa | 4099 | } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) { |
3a3d5756 SH |
4100 | if (netif_queue_stopped(dev)) { |
4101 | spin_unlock_irqrestore(&fifo->tx_lock, flags); | |
4102 | return NETDEV_TX_BUSY; | |
4103 | } | |
4104 | } | |
4105 | ||
d44570e4 JP |
4106 | put_off = (u16)fifo->tx_curr_put_info.offset; |
4107 | get_off = (u16)fifo->tx_curr_get_info.offset; | |
43d620c8 | 4108 | txdp = fifo->list_info[put_off].list_virt_addr; |
20346722 | 4109 | |
2fda096d | 4110 | queue_len = fifo->tx_curr_put_info.fifo_len + 1; |
1da177e4 | 4111 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 | 4112 | if (txdp->Host_Control || |
d44570e4 | 4113 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
776bd20f | 4114 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
3a3d5756 | 4115 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
e6d26bd0 | 4116 | dev_kfree_skb_any(skb); |
2fda096d | 4117 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
6ed10654 | 4118 | return NETDEV_TX_OK; |
1da177e4 | 4119 | } |
0b1f7ebe | 4120 | |
75c30b13 | 4121 | offload_type = s2io_offload_type(skb); |
75c30b13 | 4122 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 4123 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 4124 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 4125 | } |
84fa7933 | 4126 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
d44570e4 JP |
4127 | txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN | |
4128 | TXD_TX_CKO_TCP_EN | | |
4129 | TXD_TX_CKO_UDP_EN); | |
1da177e4 | 4130 | } |
fed5eccd AR |
4131 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
4132 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
2fda096d | 4133 | txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no); |
6cfc482b SH |
4134 | if (enable_per_list_interrupt) |
4135 | if (put_off & (queue_len >> 5)) | |
4136 | txdp->Control_2 |= TXD_INT_TYPE_PER_LIST; | |
3a3d5756 | 4137 | if (vlan_tag) { |
be3a6b02 K |
4138 | txdp->Control_2 |= TXD_VLAN_ENABLE; |
4139 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
4140 | } | |
4141 | ||
e743d313 | 4142 | frg_len = skb_headlen(skb); |
75c30b13 | 4143 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
4144 | int ufo_size; |
4145 | ||
75c30b13 | 4146 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
4147 | ufo_size &= ~7; |
4148 | txdp->Control_1 |= TXD_UFO_EN; | |
4149 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
4150 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
4151 | #ifdef __BIG_ENDIAN | |
3459feb8 | 4152 | /* both variants do cpu_to_be64(be32_to_cpu(...)) */ |
2fda096d | 4153 | fifo->ufo_in_band_v[put_off] = |
d44570e4 | 4154 | (__force u64)skb_shinfo(skb)->ip6_frag_id; |
fed5eccd | 4155 | #else |
2fda096d | 4156 | fifo->ufo_in_band_v[put_off] = |
d44570e4 | 4157 | (__force u64)skb_shinfo(skb)->ip6_frag_id << 32; |
fed5eccd | 4158 | #endif |
2fda096d | 4159 | txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v; |
fed5eccd | 4160 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, |
d44570e4 JP |
4161 | fifo->ufo_in_band_v, |
4162 | sizeof(u64), | |
4163 | PCI_DMA_TODEVICE); | |
8d8bb39b | 4164 | if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) |
491abf25 | 4165 | goto pci_map_failed; |
fed5eccd | 4166 | txdp++; |
fed5eccd | 4167 | } |
1da177e4 | 4168 | |
d44570e4 JP |
4169 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data, |
4170 | frg_len, PCI_DMA_TODEVICE); | |
8d8bb39b | 4171 | if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) |
491abf25 VP |
4172 | goto pci_map_failed; |
4173 | ||
d44570e4 | 4174 | txdp->Host_Control = (unsigned long)skb; |
fed5eccd | 4175 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); |
75c30b13 | 4176 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4177 | txdp->Control_1 |= TXD_UFO_EN; |
4178 | ||
4179 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
4180 | /* For fragmented SKB. */ |
4181 | for (i = 0; i < frg_cnt; i++) { | |
9e903e08 | 4182 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
0b1f7ebe | 4183 | /* A '0' length fragment will be ignored */ |
9e903e08 | 4184 | if (!skb_frag_size(frag)) |
0b1f7ebe | 4185 | continue; |
1da177e4 | 4186 | txdp++; |
f0d06d82 IC |
4187 | txdp->Buffer_Pointer = (u64)skb_frag_dma_map(&sp->pdev->dev, |
4188 | frag, 0, | |
9e903e08 | 4189 | skb_frag_size(frag), |
5d6bcdfe | 4190 | DMA_TO_DEVICE); |
9e903e08 | 4191 | txdp->Control_1 = TXD_BUFFER0_SIZE(skb_frag_size(frag)); |
75c30b13 | 4192 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 4193 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
4194 | } |
4195 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
4196 | ||
75c30b13 | 4197 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4198 | frg_cnt++; /* as Txd0 was used for inband header */ |
4199 | ||
1da177e4 | 4200 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
2fda096d | 4201 | val64 = fifo->list_info[put_off].list_phy_addr; |
1da177e4 LT |
4202 | writeq(val64, &tx_fifo->TxDL_Pointer); |
4203 | ||
4204 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
4205 | TX_FIFO_LAST_LIST); | |
75c30b13 | 4206 | if (offload_type) |
fed5eccd | 4207 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 4208 | |
1da177e4 LT |
4209 | writeq(val64, &tx_fifo->List_Control); |
4210 | ||
303bcb4b K |
4211 | mmiowb(); |
4212 | ||
1da177e4 | 4213 | put_off++; |
2fda096d | 4214 | if (put_off == fifo->tx_curr_put_info.fifo_len + 1) |
863c11a9 | 4215 | put_off = 0; |
2fda096d | 4216 | fifo->tx_curr_put_info.offset = put_off; |
1da177e4 LT |
4217 | |
4218 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 4219 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
ffb5df6c | 4220 | swstats->fifo_full_cnt++; |
1da177e4 LT |
4221 | DBG_PRINT(TX_DBG, |
4222 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
4223 | put_off, get_off); | |
3a3d5756 | 4224 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
1da177e4 | 4225 | } |
ffb5df6c | 4226 | swstats->mem_allocated += skb->truesize; |
2fda096d | 4227 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
1da177e4 | 4228 | |
f6f4bfa3 SH |
4229 | if (sp->config.intr_type == MSI_X) |
4230 | tx_intr_handler(fifo); | |
4231 | ||
6ed10654 | 4232 | return NETDEV_TX_OK; |
ffb5df6c | 4233 | |
491abf25 | 4234 | pci_map_failed: |
ffb5df6c | 4235 | swstats->pci_map_fail_cnt++; |
3a3d5756 | 4236 | s2io_stop_tx_queue(sp, fifo->fifo_no); |
ffb5df6c | 4237 | swstats->mem_freed += skb->truesize; |
e6d26bd0 | 4238 | dev_kfree_skb_any(skb); |
2fda096d | 4239 | spin_unlock_irqrestore(&fifo->tx_lock, flags); |
6ed10654 | 4240 | return NETDEV_TX_OK; |
1da177e4 LT |
4241 | } |
4242 | ||
25fff88e K |
4243 | static void |
4244 | s2io_alarm_handle(unsigned long data) | |
4245 | { | |
1ee6dd77 | 4246 | struct s2io_nic *sp = (struct s2io_nic *)data; |
8116f3cf | 4247 | struct net_device *dev = sp->dev; |
25fff88e | 4248 | |
8116f3cf | 4249 | s2io_handle_errors(dev); |
25fff88e K |
4250 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); |
4251 | } | |
4252 | ||
7d12e780 | 4253 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4254 | { |
1ee6dd77 RB |
4255 | struct ring_info *ring = (struct ring_info *)dev_id; |
4256 | struct s2io_nic *sp = ring->nic; | |
f61e0a35 | 4257 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
cc6e7c44 | 4258 | |
f61e0a35 | 4259 | if (unlikely(!is_s2io_card_up(sp))) |
92b84437 | 4260 | return IRQ_HANDLED; |
92b84437 | 4261 | |
f61e0a35 | 4262 | if (sp->config.napi) { |
1a79d1c3 AV |
4263 | u8 __iomem *addr = NULL; |
4264 | u8 val8 = 0; | |
f61e0a35 | 4265 | |
1a79d1c3 | 4266 | addr = (u8 __iomem *)&bar0->xmsi_mask_reg; |
f61e0a35 SH |
4267 | addr += (7 - ring->ring_no); |
4268 | val8 = (ring->ring_no == 0) ? 0x7f : 0xff; | |
4269 | writeb(val8, addr); | |
4270 | val8 = readb(addr); | |
288379f0 | 4271 | napi_schedule(&ring->napi); |
f61e0a35 SH |
4272 | } else { |
4273 | rx_intr_handler(ring, 0); | |
8d8bb39b | 4274 | s2io_chk_rx_buffers(sp, ring); |
f61e0a35 | 4275 | } |
7d3d0439 | 4276 | |
cc6e7c44 RA |
4277 | return IRQ_HANDLED; |
4278 | } | |
4279 | ||
7d12e780 | 4280 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4281 | { |
ac731ab6 SH |
4282 | int i; |
4283 | struct fifo_info *fifos = (struct fifo_info *)dev_id; | |
4284 | struct s2io_nic *sp = fifos->nic; | |
4285 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
4286 | struct config_param *config = &sp->config; | |
4287 | u64 reason; | |
cc6e7c44 | 4288 | |
ac731ab6 SH |
4289 | if (unlikely(!is_s2io_card_up(sp))) |
4290 | return IRQ_NONE; | |
4291 | ||
4292 | reason = readq(&bar0->general_int_status); | |
4293 | if (unlikely(reason == S2IO_MINUS_ONE)) | |
4294 | /* Nothing much can be done. Get out */ | |
92b84437 | 4295 | return IRQ_HANDLED; |
92b84437 | 4296 | |
01e16faa SH |
4297 | if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) { |
4298 | writeq(S2IO_MINUS_ONE, &bar0->general_int_mask); | |
ac731ab6 | 4299 | |
01e16faa SH |
4300 | if (reason & GEN_INTR_TXPIC) |
4301 | s2io_txpic_intr_handle(sp); | |
ac731ab6 | 4302 | |
01e16faa SH |
4303 | if (reason & GEN_INTR_TXTRAFFIC) |
4304 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
ac731ab6 | 4305 | |
01e16faa SH |
4306 | for (i = 0; i < config->tx_fifo_num; i++) |
4307 | tx_intr_handler(&fifos[i]); | |
ac731ab6 | 4308 | |
01e16faa SH |
4309 | writeq(sp->general_int_mask, &bar0->general_int_mask); |
4310 | readl(&bar0->general_int_status); | |
4311 | return IRQ_HANDLED; | |
4312 | } | |
4313 | /* The interrupt was not raised by us */ | |
4314 | return IRQ_NONE; | |
cc6e7c44 | 4315 | } |
ac731ab6 | 4316 | |
1ee6dd77 | 4317 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4318 | { |
1ee6dd77 | 4319 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d K |
4320 | u64 val64; |
4321 | ||
4322 | val64 = readq(&bar0->pic_int_status); | |
4323 | if (val64 & PIC_INT_GPIO) { | |
4324 | val64 = readq(&bar0->gpio_int_reg); | |
4325 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4326 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4327 | /* |
4328 | * This is unstable state so clear both up/down | |
4329 | * interrupt and adapter to re-evaluate the link state. | |
4330 | */ | |
d44570e4 | 4331 | val64 |= GPIO_INT_REG_LINK_DOWN; |
a371a07d K |
4332 | val64 |= GPIO_INT_REG_LINK_UP; |
4333 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4334 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4335 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4336 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4337 | writeq(val64, &bar0->gpio_int_mask); |
d44570e4 | 4338 | } else if (val64 & GPIO_INT_REG_LINK_UP) { |
c92ca04b | 4339 | val64 = readq(&bar0->adapter_status); |
d44570e4 | 4340 | /* Enable Adapter */ |
19a60522 SS |
4341 | val64 = readq(&bar0->adapter_control); |
4342 | val64 |= ADAPTER_CNTL_EN; | |
4343 | writeq(val64, &bar0->adapter_control); | |
4344 | val64 |= ADAPTER_LED_ON; | |
4345 | writeq(val64, &bar0->adapter_control); | |
4346 | if (!sp->device_enabled_once) | |
4347 | sp->device_enabled_once = 1; | |
c92ca04b | 4348 | |
19a60522 SS |
4349 | s2io_link(sp, LINK_UP); |
4350 | /* | |
4351 | * unmask link down interrupt and mask link-up | |
4352 | * intr | |
4353 | */ | |
4354 | val64 = readq(&bar0->gpio_int_mask); | |
4355 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4356 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4357 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4358 | |
d44570e4 | 4359 | } else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
c92ca04b | 4360 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
4361 | s2io_link(sp, LINK_DOWN); |
4362 | /* Link is down so unmaks link up interrupt */ | |
4363 | val64 = readq(&bar0->gpio_int_mask); | |
4364 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4365 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4366 | writeq(val64, &bar0->gpio_int_mask); | |
ac1f90d6 SS |
4367 | |
4368 | /* turn off LED */ | |
4369 | val64 = readq(&bar0->adapter_control); | |
d44570e4 | 4370 | val64 = val64 & (~ADAPTER_LED_ON); |
ac1f90d6 | 4371 | writeq(val64, &bar0->adapter_control); |
a371a07d K |
4372 | } |
4373 | } | |
c92ca04b | 4374 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d K |
4375 | } |
4376 | ||
8116f3cf SS |
4377 | /** |
4378 | * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter | |
4379 | * @value: alarm bits | |
4380 | * @addr: address value | |
4381 | * @cnt: counter variable | |
4382 | * Description: Check for alarm and increment the counter | |
4383 | * Return Value: | |
4384 | * 1 - if alarm bit set | |
4385 | * 0 - if alarm bit is not set | |
4386 | */ | |
d44570e4 JP |
4387 | static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr, |
4388 | unsigned long long *cnt) | |
8116f3cf SS |
4389 | { |
4390 | u64 val64; | |
4391 | val64 = readq(addr); | |
d44570e4 | 4392 | if (val64 & value) { |
8116f3cf SS |
4393 | writeq(val64, addr); |
4394 | (*cnt)++; | |
4395 | return 1; | |
4396 | } | |
4397 | return 0; | |
4398 | ||
4399 | } | |
4400 | ||
4401 | /** | |
4402 | * s2io_handle_errors - Xframe error indication handler | |
4403 | * @nic: device private variable | |
4404 | * Description: Handle alarms such as loss of link, single or | |
4405 | * double ECC errors, critical and serious errors. | |
4406 | * Return Value: | |
4407 | * NONE | |
4408 | */ | |
d44570e4 | 4409 | static void s2io_handle_errors(void *dev_id) |
8116f3cf | 4410 | { |
d44570e4 | 4411 | struct net_device *dev = (struct net_device *)dev_id; |
4cf1653a | 4412 | struct s2io_nic *sp = netdev_priv(dev); |
8116f3cf | 4413 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d44570e4 | 4414 | u64 temp64 = 0, val64 = 0; |
8116f3cf SS |
4415 | int i = 0; |
4416 | ||
4417 | struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat; | |
4418 | struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat; | |
4419 | ||
92b84437 | 4420 | if (!is_s2io_card_up(sp)) |
8116f3cf SS |
4421 | return; |
4422 | ||
4423 | if (pci_channel_offline(sp->pdev)) | |
4424 | return; | |
4425 | ||
4426 | memset(&sw_stat->ring_full_cnt, 0, | |
d44570e4 | 4427 | sizeof(sw_stat->ring_full_cnt)); |
8116f3cf SS |
4428 | |
4429 | /* Handling the XPAK counters update */ | |
d44570e4 | 4430 | if (stats->xpak_timer_count < 72000) { |
8116f3cf SS |
4431 | /* waiting for an hour */ |
4432 | stats->xpak_timer_count++; | |
4433 | } else { | |
4434 | s2io_updt_xpak_counter(dev); | |
4435 | /* reset the count to zero */ | |
4436 | stats->xpak_timer_count = 0; | |
4437 | } | |
4438 | ||
4439 | /* Handling link status change error Intr */ | |
4440 | if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) { | |
4441 | val64 = readq(&bar0->mac_rmac_err_reg); | |
4442 | writeq(val64, &bar0->mac_rmac_err_reg); | |
4443 | if (val64 & RMAC_LINK_STATE_CHANGE_INT) | |
4444 | schedule_work(&sp->set_link_task); | |
4445 | } | |
4446 | ||
4447 | /* In case of a serious error, the device will be Reset. */ | |
4448 | if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source, | |
d44570e4 | 4449 | &sw_stat->serious_err_cnt)) |
8116f3cf SS |
4450 | goto reset; |
4451 | ||
4452 | /* Check for data parity error */ | |
4453 | if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg, | |
d44570e4 | 4454 | &sw_stat->parity_err_cnt)) |
8116f3cf SS |
4455 | goto reset; |
4456 | ||
4457 | /* Check for ring full counter */ | |
4458 | if (sp->device_type == XFRAME_II_DEVICE) { | |
4459 | val64 = readq(&bar0->ring_bump_counter1); | |
d44570e4 JP |
4460 | for (i = 0; i < 4; i++) { |
4461 | temp64 = (val64 & vBIT(0xFFFF, (i*16), 16)); | |
8116f3cf SS |
4462 | temp64 >>= 64 - ((i+1)*16); |
4463 | sw_stat->ring_full_cnt[i] += temp64; | |
4464 | } | |
4465 | ||
4466 | val64 = readq(&bar0->ring_bump_counter2); | |
d44570e4 JP |
4467 | for (i = 0; i < 4; i++) { |
4468 | temp64 = (val64 & vBIT(0xFFFF, (i*16), 16)); | |
8116f3cf | 4469 | temp64 >>= 64 - ((i+1)*16); |
d44570e4 | 4470 | sw_stat->ring_full_cnt[i+4] += temp64; |
8116f3cf SS |
4471 | } |
4472 | } | |
4473 | ||
4474 | val64 = readq(&bar0->txdma_int_status); | |
4475 | /*check for pfc_err*/ | |
4476 | if (val64 & TXDMA_PFC_INT) { | |
d44570e4 JP |
4477 | if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM | |
4478 | PFC_MISC_0_ERR | PFC_MISC_1_ERR | | |
4479 | PFC_PCIX_ERR, | |
4480 | &bar0->pfc_err_reg, | |
4481 | &sw_stat->pfc_err_cnt)) | |
8116f3cf | 4482 | goto reset; |
d44570e4 JP |
4483 | do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR, |
4484 | &bar0->pfc_err_reg, | |
4485 | &sw_stat->pfc_err_cnt); | |
8116f3cf SS |
4486 | } |
4487 | ||
4488 | /*check for tda_err*/ | |
4489 | if (val64 & TXDMA_TDA_INT) { | |
d44570e4 JP |
4490 | if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR | |
4491 | TDA_SM0_ERR_ALARM | | |
4492 | TDA_SM1_ERR_ALARM, | |
4493 | &bar0->tda_err_reg, | |
4494 | &sw_stat->tda_err_cnt)) | |
8116f3cf SS |
4495 | goto reset; |
4496 | do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR, | |
d44570e4 JP |
4497 | &bar0->tda_err_reg, |
4498 | &sw_stat->tda_err_cnt); | |
8116f3cf SS |
4499 | } |
4500 | /*check for pcc_err*/ | |
4501 | if (val64 & TXDMA_PCC_INT) { | |
d44570e4 JP |
4502 | if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | |
4503 | PCC_N_SERR | PCC_6_COF_OV_ERR | | |
4504 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | | |
4505 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR | | |
4506 | PCC_TXB_ECC_DB_ERR, | |
4507 | &bar0->pcc_err_reg, | |
4508 | &sw_stat->pcc_err_cnt)) | |
8116f3cf SS |
4509 | goto reset; |
4510 | do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR, | |
d44570e4 JP |
4511 | &bar0->pcc_err_reg, |
4512 | &sw_stat->pcc_err_cnt); | |
8116f3cf SS |
4513 | } |
4514 | ||
4515 | /*check for tti_err*/ | |
4516 | if (val64 & TXDMA_TTI_INT) { | |
d44570e4 JP |
4517 | if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM, |
4518 | &bar0->tti_err_reg, | |
4519 | &sw_stat->tti_err_cnt)) | |
8116f3cf SS |
4520 | goto reset; |
4521 | do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR, | |
d44570e4 JP |
4522 | &bar0->tti_err_reg, |
4523 | &sw_stat->tti_err_cnt); | |
8116f3cf SS |
4524 | } |
4525 | ||
4526 | /*check for lso_err*/ | |
4527 | if (val64 & TXDMA_LSO_INT) { | |
d44570e4 JP |
4528 | if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT | |
4529 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM, | |
4530 | &bar0->lso_err_reg, | |
4531 | &sw_stat->lso_err_cnt)) | |
8116f3cf SS |
4532 | goto reset; |
4533 | do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
d44570e4 JP |
4534 | &bar0->lso_err_reg, |
4535 | &sw_stat->lso_err_cnt); | |
8116f3cf SS |
4536 | } |
4537 | ||
4538 | /*check for tpa_err*/ | |
4539 | if (val64 & TXDMA_TPA_INT) { | |
d44570e4 JP |
4540 | if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM, |
4541 | &bar0->tpa_err_reg, | |
4542 | &sw_stat->tpa_err_cnt)) | |
8116f3cf | 4543 | goto reset; |
d44570e4 JP |
4544 | do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP, |
4545 | &bar0->tpa_err_reg, | |
4546 | &sw_stat->tpa_err_cnt); | |
8116f3cf SS |
4547 | } |
4548 | ||
4549 | /*check for sm_err*/ | |
4550 | if (val64 & TXDMA_SM_INT) { | |
d44570e4 JP |
4551 | if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM, |
4552 | &bar0->sm_err_reg, | |
4553 | &sw_stat->sm_err_cnt)) | |
8116f3cf SS |
4554 | goto reset; |
4555 | } | |
4556 | ||
4557 | val64 = readq(&bar0->mac_int_status); | |
4558 | if (val64 & MAC_INT_STATUS_TMAC_INT) { | |
4559 | if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR, | |
d44570e4 JP |
4560 | &bar0->mac_tmac_err_reg, |
4561 | &sw_stat->mac_tmac_err_cnt)) | |
8116f3cf | 4562 | goto reset; |
d44570e4 JP |
4563 | do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | |
4564 | TMAC_DESC_ECC_SG_ERR | | |
4565 | TMAC_DESC_ECC_DB_ERR, | |
4566 | &bar0->mac_tmac_err_reg, | |
4567 | &sw_stat->mac_tmac_err_cnt); | |
8116f3cf SS |
4568 | } |
4569 | ||
4570 | val64 = readq(&bar0->xgxs_int_status); | |
4571 | if (val64 & XGXS_INT_STATUS_TXGXS) { | |
4572 | if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR, | |
d44570e4 JP |
4573 | &bar0->xgxs_txgxs_err_reg, |
4574 | &sw_stat->xgxs_txgxs_err_cnt)) | |
8116f3cf SS |
4575 | goto reset; |
4576 | do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, | |
d44570e4 JP |
4577 | &bar0->xgxs_txgxs_err_reg, |
4578 | &sw_stat->xgxs_txgxs_err_cnt); | |
8116f3cf SS |
4579 | } |
4580 | ||
4581 | val64 = readq(&bar0->rxdma_int_status); | |
4582 | if (val64 & RXDMA_INT_RC_INT_M) { | |
d44570e4 JP |
4583 | if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR | |
4584 | RC_FTC_ECC_DB_ERR | | |
4585 | RC_PRCn_SM_ERR_ALARM | | |
4586 | RC_FTC_SM_ERR_ALARM, | |
4587 | &bar0->rc_err_reg, | |
4588 | &sw_stat->rc_err_cnt)) | |
8116f3cf | 4589 | goto reset; |
d44570e4 JP |
4590 | do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR | |
4591 | RC_FTC_ECC_SG_ERR | | |
4592 | RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg, | |
4593 | &sw_stat->rc_err_cnt); | |
4594 | if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn | | |
4595 | PRC_PCI_AB_WR_Rn | | |
4596 | PRC_PCI_AB_F_WR_Rn, | |
4597 | &bar0->prc_pcix_err_reg, | |
4598 | &sw_stat->prc_pcix_err_cnt)) | |
8116f3cf | 4599 | goto reset; |
d44570e4 JP |
4600 | do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn | |
4601 | PRC_PCI_DP_WR_Rn | | |
4602 | PRC_PCI_DP_F_WR_Rn, | |
4603 | &bar0->prc_pcix_err_reg, | |
4604 | &sw_stat->prc_pcix_err_cnt); | |
8116f3cf SS |
4605 | } |
4606 | ||
4607 | if (val64 & RXDMA_INT_RPA_INT_M) { | |
4608 | if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR, | |
d44570e4 JP |
4609 | &bar0->rpa_err_reg, |
4610 | &sw_stat->rpa_err_cnt)) | |
8116f3cf SS |
4611 | goto reset; |
4612 | do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, | |
d44570e4 JP |
4613 | &bar0->rpa_err_reg, |
4614 | &sw_stat->rpa_err_cnt); | |
8116f3cf SS |
4615 | } |
4616 | ||
4617 | if (val64 & RXDMA_INT_RDA_INT_M) { | |
d44570e4 JP |
4618 | if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR | |
4619 | RDA_FRM_ECC_DB_N_AERR | | |
4620 | RDA_SM1_ERR_ALARM | | |
4621 | RDA_SM0_ERR_ALARM | | |
4622 | RDA_RXD_ECC_DB_SERR, | |
4623 | &bar0->rda_err_reg, | |
4624 | &sw_stat->rda_err_cnt)) | |
8116f3cf | 4625 | goto reset; |
d44570e4 JP |
4626 | do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR | |
4627 | RDA_FRM_ECC_SG_ERR | | |
4628 | RDA_MISC_ERR | | |
4629 | RDA_PCIX_ERR, | |
4630 | &bar0->rda_err_reg, | |
4631 | &sw_stat->rda_err_cnt); | |
8116f3cf SS |
4632 | } |
4633 | ||
4634 | if (val64 & RXDMA_INT_RTI_INT_M) { | |
d44570e4 JP |
4635 | if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM, |
4636 | &bar0->rti_err_reg, | |
4637 | &sw_stat->rti_err_cnt)) | |
8116f3cf SS |
4638 | goto reset; |
4639 | do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, | |
d44570e4 JP |
4640 | &bar0->rti_err_reg, |
4641 | &sw_stat->rti_err_cnt); | |
8116f3cf SS |
4642 | } |
4643 | ||
4644 | val64 = readq(&bar0->mac_int_status); | |
4645 | if (val64 & MAC_INT_STATUS_RMAC_INT) { | |
4646 | if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR, | |
d44570e4 JP |
4647 | &bar0->mac_rmac_err_reg, |
4648 | &sw_stat->mac_rmac_err_cnt)) | |
8116f3cf | 4649 | goto reset; |
d44570e4 JP |
4650 | do_s2io_chk_alarm_bit(RMAC_UNUSED_INT | |
4651 | RMAC_SINGLE_ECC_ERR | | |
4652 | RMAC_DOUBLE_ECC_ERR, | |
4653 | &bar0->mac_rmac_err_reg, | |
4654 | &sw_stat->mac_rmac_err_cnt); | |
8116f3cf SS |
4655 | } |
4656 | ||
4657 | val64 = readq(&bar0->xgxs_int_status); | |
4658 | if (val64 & XGXS_INT_STATUS_RXGXS) { | |
4659 | if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, | |
d44570e4 JP |
4660 | &bar0->xgxs_rxgxs_err_reg, |
4661 | &sw_stat->xgxs_rxgxs_err_cnt)) | |
8116f3cf SS |
4662 | goto reset; |
4663 | } | |
4664 | ||
4665 | val64 = readq(&bar0->mc_int_status); | |
d44570e4 JP |
4666 | if (val64 & MC_INT_STATUS_MC_INT) { |
4667 | if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR, | |
4668 | &bar0->mc_err_reg, | |
4669 | &sw_stat->mc_err_cnt)) | |
8116f3cf SS |
4670 | goto reset; |
4671 | ||
4672 | /* Handling Ecc errors */ | |
4673 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
4674 | writeq(val64, &bar0->mc_err_reg); | |
4675 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
4676 | sw_stat->double_ecc_errs++; | |
4677 | if (sp->device_type != XFRAME_II_DEVICE) { | |
4678 | /* | |
4679 | * Reset XframeI only if critical error | |
4680 | */ | |
4681 | if (val64 & | |
d44570e4 JP |
4682 | (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | |
4683 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) | |
4684 | goto reset; | |
4685 | } | |
8116f3cf SS |
4686 | } else |
4687 | sw_stat->single_ecc_errs++; | |
4688 | } | |
4689 | } | |
4690 | return; | |
4691 | ||
4692 | reset: | |
3a3d5756 | 4693 | s2io_stop_all_tx_queue(sp); |
8116f3cf SS |
4694 | schedule_work(&sp->rst_timer_task); |
4695 | sw_stat->soft_reset_cnt++; | |
8116f3cf SS |
4696 | } |
4697 | ||
1da177e4 LT |
4698 | /** |
4699 | * s2io_isr - ISR handler of the device . | |
4700 | * @irq: the irq of the device. | |
4701 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 K |
4702 | * Description: This function is the ISR handler of the device. It |
4703 | * identifies the reason for the interrupt and calls the relevant | |
4704 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4705 | * recv buffers, if their numbers are below the panic value which is |
4706 | * presently set to 25% of the original number of rcv buffers allocated. | |
4707 | * Return value: | |
20346722 | 4708 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4709 | * IRQ_NONE: will be returned if interrupt is not from our device |
4710 | */ | |
7d12e780 | 4711 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 | 4712 | { |
d44570e4 | 4713 | struct net_device *dev = (struct net_device *)dev_id; |
4cf1653a | 4714 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 4715 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
20346722 | 4716 | int i; |
19a60522 | 4717 | u64 reason = 0; |
1ee6dd77 | 4718 | struct mac_info *mac_control; |
1da177e4 LT |
4719 | struct config_param *config; |
4720 | ||
d796fdb7 LV |
4721 | /* Pretend we handled any irq's from a disconnected card */ |
4722 | if (pci_channel_offline(sp->pdev)) | |
4723 | return IRQ_NONE; | |
4724 | ||
596c5c97 | 4725 | if (!is_s2io_card_up(sp)) |
92b84437 | 4726 | return IRQ_NONE; |
92b84437 | 4727 | |
1da177e4 | 4728 | config = &sp->config; |
ffb5df6c | 4729 | mac_control = &sp->mac_control; |
1da177e4 | 4730 | |
20346722 | 4731 | /* |
1da177e4 LT |
4732 | * Identify the cause for interrupt and call the appropriate |
4733 | * interrupt handler. Causes for the interrupt could be; | |
4734 | * 1. Rx of packet. | |
4735 | * 2. Tx complete. | |
4736 | * 3. Link down. | |
1da177e4 LT |
4737 | */ |
4738 | reason = readq(&bar0->general_int_status); | |
4739 | ||
d44570e4 JP |
4740 | if (unlikely(reason == S2IO_MINUS_ONE)) |
4741 | return IRQ_HANDLED; /* Nothing much can be done. Get out */ | |
5d3213cc | 4742 | |
d44570e4 JP |
4743 | if (reason & |
4744 | (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) { | |
596c5c97 SS |
4745 | writeq(S2IO_MINUS_ONE, &bar0->general_int_mask); |
4746 | ||
4747 | if (config->napi) { | |
4748 | if (reason & GEN_INTR_RXTRAFFIC) { | |
288379f0 | 4749 | napi_schedule(&sp->napi); |
f61e0a35 SH |
4750 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask); |
4751 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
4752 | readl(&bar0->rx_traffic_int); | |
db874e65 | 4753 | } |
596c5c97 SS |
4754 | } else { |
4755 | /* | |
4756 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4757 | * will ensure that the actual interrupt causing bit | |
4758 | * get's cleared and hence a read can be avoided. | |
4759 | */ | |
4760 | if (reason & GEN_INTR_RXTRAFFIC) | |
19a60522 | 4761 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
596c5c97 | 4762 | |
13d866a9 JP |
4763 | for (i = 0; i < config->rx_ring_num; i++) { |
4764 | struct ring_info *ring = &mac_control->rings[i]; | |
4765 | ||
4766 | rx_intr_handler(ring, 0); | |
4767 | } | |
db874e65 | 4768 | } |
596c5c97 | 4769 | |
db874e65 | 4770 | /* |
596c5c97 | 4771 | * tx_traffic_int reg is an R1 register, writing all 1's |
db874e65 SS |
4772 | * will ensure that the actual interrupt causing bit get's |
4773 | * cleared and hence a read can be avoided. | |
4774 | */ | |
596c5c97 SS |
4775 | if (reason & GEN_INTR_TXTRAFFIC) |
4776 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
19a60522 | 4777 | |
596c5c97 SS |
4778 | for (i = 0; i < config->tx_fifo_num; i++) |
4779 | tx_intr_handler(&mac_control->fifos[i]); | |
1da177e4 | 4780 | |
596c5c97 SS |
4781 | if (reason & GEN_INTR_TXPIC) |
4782 | s2io_txpic_intr_handle(sp); | |
fe113638 | 4783 | |
596c5c97 SS |
4784 | /* |
4785 | * Reallocate the buffers from the interrupt handler itself. | |
4786 | */ | |
4787 | if (!config->napi) { | |
13d866a9 JP |
4788 | for (i = 0; i < config->rx_ring_num; i++) { |
4789 | struct ring_info *ring = &mac_control->rings[i]; | |
4790 | ||
4791 | s2io_chk_rx_buffers(sp, ring); | |
4792 | } | |
596c5c97 SS |
4793 | } |
4794 | writeq(sp->general_int_mask, &bar0->general_int_mask); | |
4795 | readl(&bar0->general_int_status); | |
20346722 | 4796 | |
596c5c97 | 4797 | return IRQ_HANDLED; |
db874e65 | 4798 | |
d44570e4 | 4799 | } else if (!reason) { |
596c5c97 SS |
4800 | /* The interrupt was not raised by us */ |
4801 | return IRQ_NONE; | |
4802 | } | |
db874e65 | 4803 | |
1da177e4 LT |
4804 | return IRQ_HANDLED; |
4805 | } | |
4806 | ||
7ba013ac K |
4807 | /** |
4808 | * s2io_updt_stats - | |
4809 | */ | |
1ee6dd77 | 4810 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4811 | { |
1ee6dd77 | 4812 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac K |
4813 | u64 val64; |
4814 | int cnt = 0; | |
4815 | ||
92b84437 | 4816 | if (is_s2io_card_up(sp)) { |
7ba013ac K |
4817 | /* Apprx 30us on a 133 MHz bus */ |
4818 | val64 = SET_UPDT_CLICKS(10) | | |
4819 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4820 | writeq(val64, &bar0->stat_cfg); | |
4821 | do { | |
4822 | udelay(100); | |
4823 | val64 = readq(&bar0->stat_cfg); | |
b7b5a128 | 4824 | if (!(val64 & s2BIT(0))) |
7ba013ac K |
4825 | break; |
4826 | cnt++; | |
4827 | if (cnt == 5) | |
4828 | break; /* Updt failed */ | |
d44570e4 | 4829 | } while (1); |
8a4bdbaa | 4830 | } |
7ba013ac K |
4831 | } |
4832 | ||
1da177e4 | 4833 | /** |
20346722 | 4834 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4835 | * @dev : pointer to the device structure. |
4836 | * Description: | |
20346722 | 4837 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4838 | * structure and returns a pointer to the same. |
4839 | * Return value: | |
4840 | * pointer to the updated net_device_stats structure. | |
4841 | */ | |
ac1f60db | 4842 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4843 | { |
4cf1653a | 4844 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
4845 | struct mac_info *mac_control = &sp->mac_control; |
4846 | struct stat_block *stats = mac_control->stats_info; | |
4a490432 | 4847 | u64 delta; |
1da177e4 | 4848 | |
7ba013ac K |
4849 | /* Configure Stats for immediate updt */ |
4850 | s2io_updt_stats(sp); | |
4851 | ||
4a490432 JM |
4852 | /* A device reset will cause the on-adapter statistics to be zero'ed. |
4853 | * This can be done while running by changing the MTU. To prevent the | |
4854 | * system from having the stats zero'ed, the driver keeps a copy of the | |
4855 | * last update to the system (which is also zero'ed on reset). This | |
4856 | * enables the driver to accurately know the delta between the last | |
4857 | * update and the current update. | |
4858 | */ | |
4859 | delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 | | |
4860 | le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets; | |
4861 | sp->stats.rx_packets += delta; | |
4862 | dev->stats.rx_packets += delta; | |
4863 | ||
4864 | delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 | | |
4865 | le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets; | |
4866 | sp->stats.tx_packets += delta; | |
4867 | dev->stats.tx_packets += delta; | |
4868 | ||
4869 | delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 | | |
4870 | le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes; | |
4871 | sp->stats.rx_bytes += delta; | |
4872 | dev->stats.rx_bytes += delta; | |
4873 | ||
4874 | delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 | | |
4875 | le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes; | |
4876 | sp->stats.tx_bytes += delta; | |
4877 | dev->stats.tx_bytes += delta; | |
4878 | ||
4879 | delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors; | |
4880 | sp->stats.rx_errors += delta; | |
4881 | dev->stats.rx_errors += delta; | |
4882 | ||
4883 | delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 | | |
4884 | le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors; | |
4885 | sp->stats.tx_errors += delta; | |
4886 | dev->stats.tx_errors += delta; | |
4887 | ||
4888 | delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped; | |
4889 | sp->stats.rx_dropped += delta; | |
4890 | dev->stats.rx_dropped += delta; | |
4891 | ||
4892 | delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped; | |
4893 | sp->stats.tx_dropped += delta; | |
4894 | dev->stats.tx_dropped += delta; | |
4895 | ||
4896 | /* The adapter MAC interprets pause frames as multicast packets, but | |
4897 | * does not pass them up. This erroneously increases the multicast | |
4898 | * packet count and needs to be deducted when the multicast frame count | |
4899 | * is queried. | |
4900 | */ | |
4901 | delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 | | |
4902 | le32_to_cpu(stats->rmac_vld_mcst_frms); | |
4903 | delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms); | |
4904 | delta -= sp->stats.multicast; | |
4905 | sp->stats.multicast += delta; | |
4906 | dev->stats.multicast += delta; | |
1da177e4 | 4907 | |
4a490432 JM |
4908 | delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 | |
4909 | le32_to_cpu(stats->rmac_usized_frms)) + | |
4910 | le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors; | |
4911 | sp->stats.rx_length_errors += delta; | |
4912 | dev->stats.rx_length_errors += delta; | |
13d866a9 | 4913 | |
4a490432 JM |
4914 | delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors; |
4915 | sp->stats.rx_crc_errors += delta; | |
4916 | dev->stats.rx_crc_errors += delta; | |
0425b46a | 4917 | |
d44570e4 | 4918 | return &dev->stats; |
1da177e4 LT |
4919 | } |
4920 | ||
4921 | /** | |
4922 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4923 | * @dev : pointer to the device structure | |
4924 | * Description: | |
20346722 K |
4925 | * This function is a driver entry point which gets called by the kernel |
4926 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4927 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4928 | * determine, if multicast address must be enabled or if promiscuous mode | |
4929 | * is to be disabled etc. | |
4930 | * Return value: | |
4931 | * void. | |
4932 | */ | |
4933 | ||
4934 | static void s2io_set_multicast(struct net_device *dev) | |
4935 | { | |
4936 | int i, j, prev_cnt; | |
22bedad3 | 4937 | struct netdev_hw_addr *ha; |
4cf1653a | 4938 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 4939 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4940 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
d44570e4 | 4941 | 0xfeffffffffffULL; |
faa4f796 | 4942 | u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0; |
1da177e4 | 4943 | void __iomem *add; |
faa4f796 | 4944 | struct config_param *config = &sp->config; |
1da177e4 LT |
4945 | |
4946 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4947 | /* Enable all Multicast addresses */ | |
4948 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4949 | &bar0->rmac_addr_data0_mem); | |
4950 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4951 | &bar0->rmac_addr_data1_mem); | |
4952 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
d44570e4 JP |
4953 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
4954 | RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1); | |
1da177e4 LT |
4955 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
4956 | /* Wait till command completes */ | |
c92ca04b | 4957 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
4958 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4959 | S2IO_BIT_RESET); | |
1da177e4 LT |
4960 | |
4961 | sp->m_cast_flg = 1; | |
faa4f796 | 4962 | sp->all_multi_pos = config->max_mc_addr - 1; |
1da177e4 LT |
4963 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { |
4964 | /* Disable all Multicast addresses */ | |
4965 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4966 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd K |
4967 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4968 | &bar0->rmac_addr_data1_mem); | |
1da177e4 | 4969 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
4970 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
4971 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
1da177e4 LT |
4972 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
4973 | /* Wait till command completes */ | |
c92ca04b | 4974 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
4975 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4976 | S2IO_BIT_RESET); | |
1da177e4 LT |
4977 | |
4978 | sp->m_cast_flg = 0; | |
4979 | sp->all_multi_pos = 0; | |
4980 | } | |
4981 | ||
4982 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4983 | /* Put the NIC into promiscuous mode */ | |
4984 | add = &bar0->mac_cfg; | |
4985 | val64 = readq(&bar0->mac_cfg); | |
4986 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4987 | ||
4988 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 4989 | writel((u32)val64, add); |
1da177e4 LT |
4990 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
4991 | writel((u32) (val64 >> 32), (add + 4)); | |
4992 | ||
926930b2 SS |
4993 | if (vlan_tag_strip != 1) { |
4994 | val64 = readq(&bar0->rx_pa_cfg); | |
4995 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
4996 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 4997 | sp->vlan_strip_flag = 0; |
926930b2 SS |
4998 | } |
4999 | ||
1da177e4 LT |
5000 | val64 = readq(&bar0->mac_cfg); |
5001 | sp->promisc_flg = 1; | |
776bd20f | 5002 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
5003 | dev->name); |
5004 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
5005 | /* Remove the NIC from promiscuous mode */ | |
5006 | add = &bar0->mac_cfg; | |
5007 | val64 = readq(&bar0->mac_cfg); | |
5008 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
5009 | ||
5010 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
d44570e4 | 5011 | writel((u32)val64, add); |
1da177e4 LT |
5012 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); |
5013 | writel((u32) (val64 >> 32), (add + 4)); | |
5014 | ||
926930b2 SS |
5015 | if (vlan_tag_strip != 0) { |
5016 | val64 = readq(&bar0->rx_pa_cfg); | |
5017 | val64 |= RX_PA_CFG_STRIP_VLAN_TAG; | |
5018 | writeq(val64, &bar0->rx_pa_cfg); | |
cd0fce03 | 5019 | sp->vlan_strip_flag = 1; |
926930b2 SS |
5020 | } |
5021 | ||
1da177e4 LT |
5022 | val64 = readq(&bar0->mac_cfg); |
5023 | sp->promisc_flg = 0; | |
9e39f7c5 | 5024 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name); |
1da177e4 LT |
5025 | } |
5026 | ||
5027 | /* Update individual M_CAST address list */ | |
4cd24eaf JP |
5028 | if ((!sp->m_cast_flg) && netdev_mc_count(dev)) { |
5029 | if (netdev_mc_count(dev) > | |
faa4f796 | 5030 | (config->max_mc_addr - config->max_mac_addr)) { |
9e39f7c5 JP |
5031 | DBG_PRINT(ERR_DBG, |
5032 | "%s: No more Rx filters can be added - " | |
5033 | "please enable ALL_MULTI instead\n", | |
1da177e4 | 5034 | dev->name); |
1da177e4 LT |
5035 | return; |
5036 | } | |
5037 | ||
5038 | prev_cnt = sp->mc_addr_count; | |
4cd24eaf | 5039 | sp->mc_addr_count = netdev_mc_count(dev); |
1da177e4 LT |
5040 | |
5041 | /* Clear out the previous list of Mc in the H/W. */ | |
5042 | for (i = 0; i < prev_cnt; i++) { | |
5043 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
5044 | &bar0->rmac_addr_data0_mem); | |
5045 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
d44570e4 | 5046 | &bar0->rmac_addr_data1_mem); |
1da177e4 | 5047 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
5048 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5049 | RMAC_ADDR_CMD_MEM_OFFSET | |
5050 | (config->mc_start_offset + i); | |
1da177e4 LT |
5051 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5052 | ||
5053 | /* Wait for command completes */ | |
c92ca04b | 5054 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5055 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5056 | S2IO_BIT_RESET)) { | |
9e39f7c5 JP |
5057 | DBG_PRINT(ERR_DBG, |
5058 | "%s: Adding Multicasts failed\n", | |
5059 | dev->name); | |
1da177e4 LT |
5060 | return; |
5061 | } | |
5062 | } | |
5063 | ||
5064 | /* Create the new Rx filter list and update the same in H/W. */ | |
5508590c | 5065 | i = 0; |
22bedad3 | 5066 | netdev_for_each_mc_addr(ha, dev) { |
a7a80d5a | 5067 | mac_addr = 0; |
1da177e4 | 5068 | for (j = 0; j < ETH_ALEN; j++) { |
22bedad3 | 5069 | mac_addr |= ha->addr[j]; |
1da177e4 LT |
5070 | mac_addr <<= 8; |
5071 | } | |
5072 | mac_addr >>= 8; | |
5073 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
5074 | &bar0->rmac_addr_data0_mem); | |
5075 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
d44570e4 | 5076 | &bar0->rmac_addr_data1_mem); |
1da177e4 | 5077 | val64 = RMAC_ADDR_CMD_MEM_WE | |
d44570e4 JP |
5078 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
5079 | RMAC_ADDR_CMD_MEM_OFFSET | |
5080 | (i + config->mc_start_offset); | |
1da177e4 LT |
5081 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
5082 | ||
5083 | /* Wait for command completes */ | |
c92ca04b | 5084 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
5085 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5086 | S2IO_BIT_RESET)) { | |
9e39f7c5 JP |
5087 | DBG_PRINT(ERR_DBG, |
5088 | "%s: Adding Multicasts failed\n", | |
5089 | dev->name); | |
1da177e4 LT |
5090 | return; |
5091 | } | |
5508590c | 5092 | i++; |
1da177e4 LT |
5093 | } |
5094 | } | |
5095 | } | |
5096 | ||
faa4f796 SH |
5097 | /* read from CAM unicast & multicast addresses and store it in |
5098 | * def_mac_addr structure | |
5099 | */ | |
dac499f9 | 5100 | static void do_s2io_store_unicast_mc(struct s2io_nic *sp) |
faa4f796 SH |
5101 | { |
5102 | int offset; | |
5103 | u64 mac_addr = 0x0; | |
5104 | struct config_param *config = &sp->config; | |
5105 | ||
5106 | /* store unicast & multicast mac addresses */ | |
5107 | for (offset = 0; offset < config->max_mc_addr; offset++) { | |
5108 | mac_addr = do_s2io_read_unicast_mc(sp, offset); | |
5109 | /* if read fails disable the entry */ | |
5110 | if (mac_addr == FAILURE) | |
5111 | mac_addr = S2IO_DISABLE_MAC_ENTRY; | |
5112 | do_s2io_copy_mac_addr(sp, offset, mac_addr); | |
5113 | } | |
5114 | } | |
5115 | ||
5116 | /* restore unicast & multicast MAC to CAM from def_mac_addr structure */ | |
5117 | static void do_s2io_restore_unicast_mc(struct s2io_nic *sp) | |
5118 | { | |
5119 | int offset; | |
5120 | struct config_param *config = &sp->config; | |
5121 | /* restore unicast mac address */ | |
5122 | for (offset = 0; offset < config->max_mac_addr; offset++) | |
5123 | do_s2io_prog_unicast(sp->dev, | |
d44570e4 | 5124 | sp->def_mac_addr[offset].mac_addr); |
faa4f796 SH |
5125 | |
5126 | /* restore multicast mac address */ | |
5127 | for (offset = config->mc_start_offset; | |
d44570e4 | 5128 | offset < config->max_mc_addr; offset++) |
faa4f796 SH |
5129 | do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr); |
5130 | } | |
5131 | ||
5132 | /* add a multicast MAC address to CAM */ | |
5133 | static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr) | |
5134 | { | |
5135 | int i; | |
5136 | u64 mac_addr = 0; | |
5137 | struct config_param *config = &sp->config; | |
5138 | ||
5139 | for (i = 0; i < ETH_ALEN; i++) { | |
5140 | mac_addr <<= 8; | |
5141 | mac_addr |= addr[i]; | |
5142 | } | |
5143 | if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY)) | |
5144 | return SUCCESS; | |
5145 | ||
5146 | /* check if the multicast mac already preset in CAM */ | |
5147 | for (i = config->mc_start_offset; i < config->max_mc_addr; i++) { | |
5148 | u64 tmp64; | |
5149 | tmp64 = do_s2io_read_unicast_mc(sp, i); | |
5150 | if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */ | |
5151 | break; | |
5152 | ||
5153 | if (tmp64 == mac_addr) | |
5154 | return SUCCESS; | |
5155 | } | |
5156 | if (i == config->max_mc_addr) { | |
5157 | DBG_PRINT(ERR_DBG, | |
d44570e4 | 5158 | "CAM full no space left for multicast MAC\n"); |
faa4f796 SH |
5159 | return FAILURE; |
5160 | } | |
5161 | /* Update the internal structure with this new mac address */ | |
5162 | do_s2io_copy_mac_addr(sp, i, mac_addr); | |
5163 | ||
d44570e4 | 5164 | return do_s2io_add_mac(sp, mac_addr, i); |
faa4f796 SH |
5165 | } |
5166 | ||
5167 | /* add MAC address to CAM */ | |
5168 | static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off) | |
2fd37688 SS |
5169 | { |
5170 | u64 val64; | |
5171 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
5172 | ||
5173 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr), | |
d44570e4 | 5174 | &bar0->rmac_addr_data0_mem); |
2fd37688 | 5175 | |
d44570e4 | 5176 | val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
2fd37688 SS |
5177 | RMAC_ADDR_CMD_MEM_OFFSET(off); |
5178 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
5179 | ||
5180 | /* Wait till command completes */ | |
5181 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, | |
d44570e4 JP |
5182 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5183 | S2IO_BIT_RESET)) { | |
faa4f796 | 5184 | DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n"); |
2fd37688 SS |
5185 | return FAILURE; |
5186 | } | |
5187 | return SUCCESS; | |
5188 | } | |
faa4f796 SH |
5189 | /* deletes a specified unicast/multicast mac entry from CAM */ |
5190 | static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr) | |
5191 | { | |
5192 | int offset; | |
5193 | u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64; | |
5194 | struct config_param *config = &sp->config; | |
5195 | ||
5196 | for (offset = 1; | |
d44570e4 | 5197 | offset < config->max_mc_addr; offset++) { |
faa4f796 SH |
5198 | tmp64 = do_s2io_read_unicast_mc(sp, offset); |
5199 | if (tmp64 == addr) { | |
5200 | /* disable the entry by writing 0xffffffffffffULL */ | |
5201 | if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE) | |
5202 | return FAILURE; | |
5203 | /* store the new mac list from CAM */ | |
5204 | do_s2io_store_unicast_mc(sp); | |
5205 | return SUCCESS; | |
5206 | } | |
5207 | } | |
5208 | DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n", | |
d44570e4 | 5209 | (unsigned long long)addr); |
faa4f796 SH |
5210 | return FAILURE; |
5211 | } | |
5212 | ||
5213 | /* read mac entries from CAM */ | |
5214 | static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset) | |
5215 | { | |
5216 | u64 tmp64 = 0xffffffffffff0000ULL, val64; | |
5217 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
5218 | ||
5219 | /* read mac addr */ | |
d44570e4 | 5220 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | |
faa4f796 SH |
5221 | RMAC_ADDR_CMD_MEM_OFFSET(offset); |
5222 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
5223 | ||
5224 | /* Wait till command completes */ | |
5225 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, | |
d44570e4 JP |
5226 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
5227 | S2IO_BIT_RESET)) { | |
faa4f796 SH |
5228 | DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n"); |
5229 | return FAILURE; | |
5230 | } | |
5231 | tmp64 = readq(&bar0->rmac_addr_data0_mem); | |
d44570e4 JP |
5232 | |
5233 | return tmp64 >> 16; | |
faa4f796 | 5234 | } |
2fd37688 SS |
5235 | |
5236 | /** | |
49ce9c2c | 5237 | * s2io_set_mac_addr - driver entry point |
2fd37688 | 5238 | */ |
faa4f796 | 5239 | |
2fd37688 SS |
5240 | static int s2io_set_mac_addr(struct net_device *dev, void *p) |
5241 | { | |
5242 | struct sockaddr *addr = p; | |
5243 | ||
5244 | if (!is_valid_ether_addr(addr->sa_data)) | |
504f9b5a | 5245 | return -EADDRNOTAVAIL; |
2fd37688 SS |
5246 | |
5247 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
5248 | ||
5249 | /* store the MAC address in CAM */ | |
d44570e4 | 5250 | return do_s2io_prog_unicast(dev, dev->dev_addr); |
2fd37688 | 5251 | } |
1da177e4 | 5252 | /** |
2fd37688 | 5253 | * do_s2io_prog_unicast - Programs the Xframe mac address |
1da177e4 LT |
5254 | * @dev : pointer to the device structure. |
5255 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 5256 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 5257 | * frames with new Mac Address |
20346722 | 5258 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
5259 | * as defined in errno.h file on failure. |
5260 | */ | |
faa4f796 | 5261 | |
2fd37688 | 5262 | static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr) |
1da177e4 | 5263 | { |
4cf1653a | 5264 | struct s2io_nic *sp = netdev_priv(dev); |
2fd37688 | 5265 | register u64 mac_addr = 0, perm_addr = 0; |
1da177e4 | 5266 | int i; |
faa4f796 SH |
5267 | u64 tmp64; |
5268 | struct config_param *config = &sp->config; | |
1da177e4 | 5269 | |
20346722 | 5270 | /* |
d44570e4 JP |
5271 | * Set the new MAC address as the new unicast filter and reflect this |
5272 | * change on the device address registered with the OS. It will be | |
5273 | * at offset 0. | |
5274 | */ | |
1da177e4 LT |
5275 | for (i = 0; i < ETH_ALEN; i++) { |
5276 | mac_addr <<= 8; | |
5277 | mac_addr |= addr[i]; | |
2fd37688 SS |
5278 | perm_addr <<= 8; |
5279 | perm_addr |= sp->def_mac_addr[0].mac_addr[i]; | |
d8d70caf SS |
5280 | } |
5281 | ||
2fd37688 SS |
5282 | /* check if the dev_addr is different than perm_addr */ |
5283 | if (mac_addr == perm_addr) | |
d8d70caf SS |
5284 | return SUCCESS; |
5285 | ||
faa4f796 SH |
5286 | /* check if the mac already preset in CAM */ |
5287 | for (i = 1; i < config->max_mac_addr; i++) { | |
5288 | tmp64 = do_s2io_read_unicast_mc(sp, i); | |
5289 | if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */ | |
5290 | break; | |
5291 | ||
5292 | if (tmp64 == mac_addr) { | |
5293 | DBG_PRINT(INFO_DBG, | |
d44570e4 JP |
5294 | "MAC addr:0x%llx already present in CAM\n", |
5295 | (unsigned long long)mac_addr); | |
faa4f796 SH |
5296 | return SUCCESS; |
5297 | } | |
5298 | } | |
5299 | if (i == config->max_mac_addr) { | |
5300 | DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n"); | |
5301 | return FAILURE; | |
5302 | } | |
d8d70caf | 5303 | /* Update the internal structure with this new mac address */ |
faa4f796 | 5304 | do_s2io_copy_mac_addr(sp, i, mac_addr); |
d44570e4 JP |
5305 | |
5306 | return do_s2io_add_mac(sp, mac_addr, i); | |
1da177e4 LT |
5307 | } |
5308 | ||
5309 | /** | |
20346722 | 5310 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
5311 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
5312 | * @info: pointer to the structure with parameters given by ethtool to set | |
5313 | * link information. | |
5314 | * Description: | |
20346722 | 5315 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
5316 | * the NIC. |
5317 | * Return value: | |
5318 | * 0 on success. | |
d44570e4 | 5319 | */ |
1da177e4 LT |
5320 | |
5321 | static int s2io_ethtool_sset(struct net_device *dev, | |
5322 | struct ethtool_cmd *info) | |
5323 | { | |
4cf1653a | 5324 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 | 5325 | if ((info->autoneg == AUTONEG_ENABLE) || |
25db0338 | 5326 | (ethtool_cmd_speed(info) != SPEED_10000) || |
d44570e4 | 5327 | (info->duplex != DUPLEX_FULL)) |
1da177e4 LT |
5328 | return -EINVAL; |
5329 | else { | |
5330 | s2io_close(sp->dev); | |
5331 | s2io_open(sp->dev); | |
5332 | } | |
5333 | ||
5334 | return 0; | |
5335 | } | |
5336 | ||
5337 | /** | |
20346722 | 5338 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
5339 | * @sp : private member of the device structure, pointer to the |
5340 | * s2io_nic structure. | |
5341 | * @info : pointer to the structure with parameters given by ethtool | |
5342 | * to return link information. | |
5343 | * Description: | |
5344 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
5345 | * Return value : | |
5346 | * return 0 on success. | |
5347 | */ | |
5348 | ||
5349 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
5350 | { | |
4cf1653a | 5351 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5352 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
5353 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
5354 | info->port = PORT_FIBRE; | |
1a7eb72b SS |
5355 | |
5356 | /* info->transceiver */ | |
5357 | info->transceiver = XCVR_EXTERNAL; | |
1da177e4 LT |
5358 | |
5359 | if (netif_carrier_ok(sp->dev)) { | |
70739497 | 5360 | ethtool_cmd_speed_set(info, SPEED_10000); |
1da177e4 LT |
5361 | info->duplex = DUPLEX_FULL; |
5362 | } else { | |
537fae01 JP |
5363 | ethtool_cmd_speed_set(info, SPEED_UNKNOWN); |
5364 | info->duplex = DUPLEX_UNKNOWN; | |
1da177e4 LT |
5365 | } |
5366 | ||
5367 | info->autoneg = AUTONEG_DISABLE; | |
5368 | return 0; | |
5369 | } | |
5370 | ||
5371 | /** | |
20346722 K |
5372 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
5373 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5374 | * s2io_nic structure. |
5375 | * @info : pointer to the structure with parameters given by ethtool to | |
5376 | * return driver information. | |
5377 | * Description: | |
5378 | * Returns driver specefic information like name, version etc.. to ethtool. | |
5379 | * Return value: | |
5380 | * void | |
5381 | */ | |
5382 | ||
5383 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
5384 | struct ethtool_drvinfo *info) | |
5385 | { | |
4cf1653a | 5386 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 | 5387 | |
68aad78c RJ |
5388 | strlcpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
5389 | strlcpy(info->version, s2io_driver_version, sizeof(info->version)); | |
68aad78c | 5390 | strlcpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); |
1da177e4 LT |
5391 | info->regdump_len = XENA_REG_SPACE; |
5392 | info->eedump_len = XENA_EEPROM_SPACE; | |
1da177e4 LT |
5393 | } |
5394 | ||
5395 | /** | |
5396 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 5397 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 5398 | * s2io_nic structure. |
20346722 | 5399 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
5400 | * dumping the registers. |
5401 | * @reg_space: The input argumnet into which all the registers are dumped. | |
5402 | * Description: | |
5403 | * Dumps the entire register space of xFrame NIC into the user given | |
5404 | * buffer area. | |
5405 | * Return value : | |
5406 | * void . | |
d44570e4 | 5407 | */ |
1da177e4 LT |
5408 | |
5409 | static void s2io_ethtool_gregs(struct net_device *dev, | |
5410 | struct ethtool_regs *regs, void *space) | |
5411 | { | |
5412 | int i; | |
5413 | u64 reg; | |
d44570e4 | 5414 | u8 *reg_space = (u8 *)space; |
4cf1653a | 5415 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5416 | |
5417 | regs->len = XENA_REG_SPACE; | |
5418 | regs->version = sp->pdev->subsystem_device; | |
5419 | ||
5420 | for (i = 0; i < regs->len; i += 8) { | |
5421 | reg = readq(sp->bar0 + i); | |
5422 | memcpy((reg_space + i), ®, 8); | |
5423 | } | |
5424 | } | |
5425 | ||
034e3450 | 5426 | /* |
5427 | * s2io_set_led - control NIC led | |
d44570e4 | 5428 | */ |
034e3450 | 5429 | static void s2io_set_led(struct s2io_nic *sp, bool on) |
1da177e4 | 5430 | { |
1ee6dd77 | 5431 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
034e3450 | 5432 | u16 subid = sp->pdev->subsystem_device; |
5433 | u64 val64; | |
1da177e4 | 5434 | |
541ae68f | 5435 | if ((sp->device_type == XFRAME_II_DEVICE) || |
d44570e4 | 5436 | ((subid & 0xFF) >= 0x07)) { |
1da177e4 | 5437 | val64 = readq(&bar0->gpio_control); |
034e3450 | 5438 | if (on) |
5439 | val64 |= GPIO_CTRL_GPIO_0; | |
5440 | else | |
5441 | val64 &= ~GPIO_CTRL_GPIO_0; | |
5442 | ||
1da177e4 LT |
5443 | writeq(val64, &bar0->gpio_control); |
5444 | } else { | |
5445 | val64 = readq(&bar0->adapter_control); | |
034e3450 | 5446 | if (on) |
5447 | val64 |= ADAPTER_LED_ON; | |
5448 | else | |
5449 | val64 &= ~ADAPTER_LED_ON; | |
5450 | ||
1da177e4 LT |
5451 | writeq(val64, &bar0->adapter_control); |
5452 | } | |
5453 | ||
1da177e4 LT |
5454 | } |
5455 | ||
5456 | /** | |
034e3450 | 5457 | * s2io_ethtool_set_led - To physically identify the nic on the system. |
5458 | * @dev : network device | |
5459 | * @state: led setting | |
5460 | * | |
1da177e4 | 5461 | * Description: Used to physically identify the NIC on the system. |
20346722 | 5462 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 5463 | * identification. |
20346722 | 5464 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 | 5465 | * identification is possible only if it's link is up. |
1da177e4 LT |
5466 | */ |
5467 | ||
034e3450 | 5468 | static int s2io_ethtool_set_led(struct net_device *dev, |
5469 | enum ethtool_phys_id_state state) | |
1da177e4 | 5470 | { |
4cf1653a | 5471 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5472 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
034e3450 | 5473 | u16 subid = sp->pdev->subsystem_device; |
1da177e4 | 5474 | |
d44570e4 | 5475 | if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) { |
034e3450 | 5476 | u64 val64 = readq(&bar0->adapter_control); |
1da177e4 | 5477 | if (!(val64 & ADAPTER_CNTL_EN)) { |
6cef2b8e | 5478 | pr_err("Adapter Link down, cannot blink LED\n"); |
034e3450 | 5479 | return -EAGAIN; |
1da177e4 LT |
5480 | } |
5481 | } | |
1da177e4 | 5482 | |
034e3450 | 5483 | switch (state) { |
5484 | case ETHTOOL_ID_ACTIVE: | |
5485 | sp->adapt_ctrl_org = readq(&bar0->gpio_control); | |
fce55922 | 5486 | return 1; /* cycle on/off once per second */ |
034e3450 | 5487 | |
5488 | case ETHTOOL_ID_ON: | |
5489 | s2io_set_led(sp, true); | |
5490 | break; | |
5491 | ||
5492 | case ETHTOOL_ID_OFF: | |
5493 | s2io_set_led(sp, false); | |
5494 | break; | |
5495 | ||
5496 | case ETHTOOL_ID_INACTIVE: | |
5497 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) | |
5498 | writeq(sp->adapt_ctrl_org, &bar0->gpio_control); | |
1da177e4 LT |
5499 | } |
5500 | ||
5501 | return 0; | |
5502 | } | |
5503 | ||
0cec35eb | 5504 | static void s2io_ethtool_gringparam(struct net_device *dev, |
d44570e4 | 5505 | struct ethtool_ringparam *ering) |
0cec35eb | 5506 | { |
4cf1653a | 5507 | struct s2io_nic *sp = netdev_priv(dev); |
d44570e4 | 5508 | int i, tx_desc_count = 0, rx_desc_count = 0; |
0cec35eb | 5509 | |
1853e2e1 | 5510 | if (sp->rxd_mode == RXD_MODE_1) { |
0cec35eb | 5511 | ering->rx_max_pending = MAX_RX_DESC_1; |
1853e2e1 JM |
5512 | ering->rx_jumbo_max_pending = MAX_RX_DESC_1; |
5513 | } else { | |
0cec35eb | 5514 | ering->rx_max_pending = MAX_RX_DESC_2; |
1853e2e1 JM |
5515 | ering->rx_jumbo_max_pending = MAX_RX_DESC_2; |
5516 | } | |
0cec35eb SH |
5517 | |
5518 | ering->tx_max_pending = MAX_TX_DESC; | |
8a4bdbaa | 5519 | |
1853e2e1 | 5520 | for (i = 0; i < sp->config.rx_ring_num; i++) |
0cec35eb | 5521 | rx_desc_count += sp->config.rx_cfg[i].num_rxd; |
0cec35eb | 5522 | ering->rx_pending = rx_desc_count; |
0cec35eb | 5523 | ering->rx_jumbo_pending = rx_desc_count; |
1853e2e1 JM |
5524 | |
5525 | for (i = 0; i < sp->config.tx_fifo_num; i++) | |
5526 | tx_desc_count += sp->config.tx_cfg[i].fifo_len; | |
5527 | ering->tx_pending = tx_desc_count; | |
5528 | DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds); | |
0cec35eb SH |
5529 | } |
5530 | ||
1da177e4 LT |
5531 | /** |
5532 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 K |
5533 | * @sp : private member of the device structure, which is a pointer to the |
5534 | * s2io_nic structure. | |
1da177e4 LT |
5535 | * @ep : pointer to the structure with pause parameters given by ethtool. |
5536 | * Description: | |
5537 | * Returns the Pause frame generation and reception capability of the NIC. | |
5538 | * Return value: | |
5539 | * void | |
5540 | */ | |
5541 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
5542 | struct ethtool_pauseparam *ep) | |
5543 | { | |
5544 | u64 val64; | |
4cf1653a | 5545 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5546 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5547 | |
5548 | val64 = readq(&bar0->rmac_pause_cfg); | |
5549 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
f957bcf0 | 5550 | ep->tx_pause = true; |
1da177e4 | 5551 | if (val64 & RMAC_PAUSE_RX_ENABLE) |
f957bcf0 TK |
5552 | ep->rx_pause = true; |
5553 | ep->autoneg = false; | |
1da177e4 LT |
5554 | } |
5555 | ||
5556 | /** | |
5557 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 5558 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5559 | * s2io_nic structure. |
5560 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
5561 | * Description: | |
5562 | * It can be used to set or reset Pause frame generation or reception | |
5563 | * support of the NIC. | |
5564 | * Return value: | |
5565 | * int, returns 0 on Success | |
5566 | */ | |
5567 | ||
5568 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
d44570e4 | 5569 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
5570 | { |
5571 | u64 val64; | |
4cf1653a | 5572 | struct s2io_nic *sp = netdev_priv(dev); |
1ee6dd77 | 5573 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5574 | |
5575 | val64 = readq(&bar0->rmac_pause_cfg); | |
5576 | if (ep->tx_pause) | |
5577 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
5578 | else | |
5579 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
5580 | if (ep->rx_pause) | |
5581 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
5582 | else | |
5583 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
5584 | writeq(val64, &bar0->rmac_pause_cfg); | |
5585 | return 0; | |
5586 | } | |
5587 | ||
5588 | /** | |
5589 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 5590 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5591 | * s2io_nic structure. |
5592 | * @off : offset at which the data must be written | |
5593 | * @data : Its an output parameter where the data read at the given | |
20346722 | 5594 | * offset is stored. |
1da177e4 | 5595 | * Description: |
20346722 | 5596 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
5597 | * read data. |
5598 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
5599 | * I2C bus. | |
5600 | * Return value: | |
5601 | * -1 on failure and 0 on success. | |
5602 | */ | |
5603 | ||
5604 | #define S2IO_DEV_ID 5 | |
d44570e4 | 5605 | static int read_eeprom(struct s2io_nic *sp, int off, u64 *data) |
1da177e4 LT |
5606 | { |
5607 | int ret = -1; | |
5608 | u32 exit_cnt = 0; | |
5609 | u64 val64; | |
1ee6dd77 | 5610 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5611 | |
ad4ebed0 | 5612 | if (sp->device_type == XFRAME_I_DEVICE) { |
d44570e4 JP |
5613 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | |
5614 | I2C_CONTROL_ADDR(off) | | |
5615 | I2C_CONTROL_BYTE_CNT(0x3) | | |
5616 | I2C_CONTROL_READ | | |
5617 | I2C_CONTROL_CNTL_START; | |
ad4ebed0 | 5618 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); |
1da177e4 | 5619 | |
ad4ebed0 | 5620 | while (exit_cnt < 5) { |
5621 | val64 = readq(&bar0->i2c_control); | |
5622 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5623 | *data = I2C_CONTROL_GET_DATA(val64); | |
5624 | ret = 0; | |
5625 | break; | |
5626 | } | |
5627 | msleep(50); | |
5628 | exit_cnt++; | |
1da177e4 | 5629 | } |
1da177e4 LT |
5630 | } |
5631 | ||
ad4ebed0 | 5632 | if (sp->device_type == XFRAME_II_DEVICE) { |
5633 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5634 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 5635 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
5636 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5637 | val64 |= SPI_CONTROL_REQ; | |
5638 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5639 | while (exit_cnt < 5) { | |
5640 | val64 = readq(&bar0->spi_control); | |
5641 | if (val64 & SPI_CONTROL_NACK) { | |
5642 | ret = 1; | |
5643 | break; | |
5644 | } else if (val64 & SPI_CONTROL_DONE) { | |
5645 | *data = readq(&bar0->spi_data); | |
5646 | *data &= 0xffffff; | |
5647 | ret = 0; | |
5648 | break; | |
5649 | } | |
5650 | msleep(50); | |
5651 | exit_cnt++; | |
5652 | } | |
5653 | } | |
1da177e4 LT |
5654 | return ret; |
5655 | } | |
5656 | ||
5657 | /** | |
5658 | * write_eeprom - actually writes the relevant part of the data value. | |
5659 | * @sp : private member of the device structure, which is a pointer to the | |
5660 | * s2io_nic structure. | |
5661 | * @off : offset at which the data must be written | |
5662 | * @data : The data that is to be written | |
20346722 | 5663 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
5664 | * the Eeprom. (max of 3) |
5665 | * Description: | |
5666 | * Actually writes the relevant part of the data value into the Eeprom | |
5667 | * through the I2C bus. | |
5668 | * Return value: | |
5669 | * 0 on success, -1 on failure. | |
5670 | */ | |
5671 | ||
d44570e4 | 5672 | static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt) |
1da177e4 LT |
5673 | { |
5674 | int exit_cnt = 0, ret = -1; | |
5675 | u64 val64; | |
1ee6dd77 | 5676 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5677 | |
ad4ebed0 | 5678 | if (sp->device_type == XFRAME_I_DEVICE) { |
d44570e4 JP |
5679 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | |
5680 | I2C_CONTROL_ADDR(off) | | |
5681 | I2C_CONTROL_BYTE_CNT(cnt) | | |
5682 | I2C_CONTROL_SET_DATA((u32)data) | | |
5683 | I2C_CONTROL_CNTL_START; | |
ad4ebed0 | 5684 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); |
5685 | ||
5686 | while (exit_cnt < 5) { | |
5687 | val64 = readq(&bar0->i2c_control); | |
5688 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5689 | if (!(val64 & I2C_CONTROL_NACK)) | |
5690 | ret = 0; | |
5691 | break; | |
5692 | } | |
5693 | msleep(50); | |
5694 | exit_cnt++; | |
5695 | } | |
5696 | } | |
1da177e4 | 5697 | |
ad4ebed0 | 5698 | if (sp->device_type == XFRAME_II_DEVICE) { |
5699 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
d44570e4 | 5700 | writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data); |
ad4ebed0 | 5701 | |
5702 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5703 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 5704 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
5705 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5706 | val64 |= SPI_CONTROL_REQ; | |
5707 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5708 | while (exit_cnt < 5) { | |
5709 | val64 = readq(&bar0->spi_control); | |
5710 | if (val64 & SPI_CONTROL_NACK) { | |
5711 | ret = 1; | |
5712 | break; | |
5713 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 5714 | ret = 0; |
ad4ebed0 | 5715 | break; |
5716 | } | |
5717 | msleep(50); | |
5718 | exit_cnt++; | |
1da177e4 | 5719 | } |
1da177e4 | 5720 | } |
1da177e4 LT |
5721 | return ret; |
5722 | } | |
1ee6dd77 | 5723 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 5724 | { |
b41477f3 AR |
5725 | u8 *vpd_data; |
5726 | u8 data; | |
9c179780 | 5727 | int i = 0, cnt, len, fail = 0; |
9dc737a7 | 5728 | int vpd_addr = 0x80; |
ffb5df6c | 5729 | struct swStat *swstats = &nic->mac_control.stats_info->sw_stat; |
9dc737a7 AR |
5730 | |
5731 | if (nic->device_type == XFRAME_II_DEVICE) { | |
5732 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
5733 | vpd_addr = 0x80; | |
d44570e4 | 5734 | } else { |
9dc737a7 AR |
5735 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); |
5736 | vpd_addr = 0x50; | |
5737 | } | |
19a60522 | 5738 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 5739 | |
b41477f3 | 5740 | vpd_data = kmalloc(256, GFP_KERNEL); |
c53d4945 | 5741 | if (!vpd_data) { |
ffb5df6c | 5742 | swstats->mem_alloc_fail_cnt++; |
b41477f3 | 5743 | return; |
c53d4945 | 5744 | } |
ffb5df6c | 5745 | swstats->mem_allocated += 256; |
b41477f3 | 5746 | |
d44570e4 | 5747 | for (i = 0; i < 256; i += 4) { |
9dc737a7 AR |
5748 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); |
5749 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
5750 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
d44570e4 | 5751 | for (cnt = 0; cnt < 5; cnt++) { |
9dc737a7 AR |
5752 | msleep(2); |
5753 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
5754 | if (data == 0x80) | |
5755 | break; | |
5756 | } | |
5757 | if (cnt >= 5) { | |
5758 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
5759 | fail = 1; | |
5760 | break; | |
5761 | } | |
5762 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
5763 | (u32 *)&vpd_data[i]); | |
5764 | } | |
19a60522 | 5765 | |
d44570e4 | 5766 | if (!fail) { |
19a60522 | 5767 | /* read serial number of adapter */ |
9c179780 | 5768 | for (cnt = 0; cnt < 252; cnt++) { |
d44570e4 | 5769 | if ((vpd_data[cnt] == 'S') && |
9c179780 KV |
5770 | (vpd_data[cnt+1] == 'N')) { |
5771 | len = vpd_data[cnt+2]; | |
5772 | if (len < min(VPD_STRING_LEN, 256-cnt-2)) { | |
5773 | memcpy(nic->serial_num, | |
5774 | &vpd_data[cnt + 3], | |
5775 | len); | |
5776 | memset(nic->serial_num+len, | |
5777 | 0, | |
5778 | VPD_STRING_LEN-len); | |
5779 | break; | |
5780 | } | |
19a60522 SS |
5781 | } |
5782 | } | |
5783 | } | |
5784 | ||
9c179780 KV |
5785 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { |
5786 | len = vpd_data[1]; | |
5787 | memcpy(nic->product_name, &vpd_data[3], len); | |
5788 | nic->product_name[len] = 0; | |
5789 | } | |
b41477f3 | 5790 | kfree(vpd_data); |
ffb5df6c | 5791 | swstats->mem_freed += 256; |
9dc737a7 AR |
5792 | } |
5793 | ||
1da177e4 LT |
5794 | /** |
5795 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
5796 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 5797 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5798 | * containing all relevant information. |
5799 | * @data_buf : user defined value to be written into Eeprom. | |
5800 | * Description: Reads the values stored in the Eeprom at given offset | |
5801 | * for a given length. Stores these values int the input argument data | |
5802 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
5803 | * Return value: | |
5804 | * int 0 on success | |
5805 | */ | |
5806 | ||
5807 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
d44570e4 | 5808 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 5809 | { |
ad4ebed0 | 5810 | u32 i, valid; |
5811 | u64 data; | |
4cf1653a | 5812 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5813 | |
5814 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
5815 | ||
5816 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
5817 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
5818 | ||
5819 | for (i = 0; i < eeprom->len; i += 4) { | |
5820 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
5821 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
5822 | return -EFAULT; | |
5823 | } | |
5824 | valid = INV(data); | |
5825 | memcpy((data_buf + i), &valid, 4); | |
5826 | } | |
5827 | return 0; | |
5828 | } | |
5829 | ||
5830 | /** | |
5831 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
5832 | * @sp : private member of the device structure, which is a pointer to the | |
5833 | * s2io_nic structure. | |
20346722 | 5834 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5835 | * containing all relevant information. |
5836 | * @data_buf ; user defined value to be written into Eeprom. | |
5837 | * Description: | |
5838 | * Tries to write the user provided value in the Eeprom, at the offset | |
5839 | * given by the user. | |
5840 | * Return value: | |
5841 | * 0 on success, -EFAULT on failure. | |
5842 | */ | |
5843 | ||
5844 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5845 | struct ethtool_eeprom *eeprom, | |
d44570e4 | 5846 | u8 *data_buf) |
1da177e4 LT |
5847 | { |
5848 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5849 | u64 valid = 0, data; |
4cf1653a | 5850 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
5851 | |
5852 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5853 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
5854 | "ETHTOOL_WRITE_EEPROM Err: " |
5855 | "Magic value is wrong, it is 0x%x should be 0x%x\n", | |
5856 | (sp->pdev->vendor | (sp->pdev->device << 16)), | |
5857 | eeprom->magic); | |
1da177e4 LT |
5858 | return -EFAULT; |
5859 | } | |
5860 | ||
5861 | while (len) { | |
d44570e4 JP |
5862 | data = (u32)data_buf[cnt] & 0x000000FF; |
5863 | if (data) | |
5864 | valid = (u32)(data << 24); | |
5865 | else | |
1da177e4 LT |
5866 | valid = data; |
5867 | ||
5868 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5869 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
5870 | "ETHTOOL_WRITE_EEPROM Err: " |
5871 | "Cannot write into the specified offset\n"); | |
1da177e4 LT |
5872 | return -EFAULT; |
5873 | } | |
5874 | cnt++; | |
5875 | len--; | |
5876 | } | |
5877 | ||
5878 | return 0; | |
5879 | } | |
5880 | ||
5881 | /** | |
20346722 K |
5882 | * s2io_register_test - reads and writes into all clock domains. |
5883 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5884 | * s2io_nic structure. |
5885 | * @data : variable that returns the result of each of the test conducted b | |
5886 | * by the driver. | |
5887 | * Description: | |
5888 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5889 | * see that registers in all the three regions are accessible. | |
5890 | * Return value: | |
5891 | * 0 on success. | |
5892 | */ | |
5893 | ||
d44570e4 | 5894 | static int s2io_register_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 5895 | { |
1ee6dd77 | 5896 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5897 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5898 | int fail = 0; |
5899 | ||
20346722 K |
5900 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5901 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 | 5902 | fail = 1; |
9e39f7c5 | 5903 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1); |
1da177e4 LT |
5904 | } |
5905 | ||
5906 | val64 = readq(&bar0->rmac_pause_cfg); | |
5907 | if (val64 != 0xc000ffff00000000ULL) { | |
5908 | fail = 1; | |
9e39f7c5 | 5909 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2); |
1da177e4 LT |
5910 | } |
5911 | ||
5912 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5913 | if (sp->device_type == XFRAME_II_DEVICE) |
5914 | exp_val = 0x0404040404040404ULL; | |
5915 | else | |
5916 | exp_val = 0x0808080808080808ULL; | |
5917 | if (val64 != exp_val) { | |
1da177e4 | 5918 | fail = 1; |
9e39f7c5 | 5919 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3); |
1da177e4 LT |
5920 | } |
5921 | ||
5922 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5923 | if (val64 != 0x000000001923141EULL) { | |
5924 | fail = 1; | |
9e39f7c5 | 5925 | DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4); |
1da177e4 LT |
5926 | } |
5927 | ||
5928 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5929 | writeq(val64, &bar0->xmsi_data); | |
5930 | val64 = readq(&bar0->xmsi_data); | |
5931 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5932 | fail = 1; | |
9e39f7c5 | 5933 | DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1); |
1da177e4 LT |
5934 | } |
5935 | ||
5936 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5937 | writeq(val64, &bar0->xmsi_data); | |
5938 | val64 = readq(&bar0->xmsi_data); | |
5939 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5940 | fail = 1; | |
9e39f7c5 | 5941 | DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2); |
1da177e4 LT |
5942 | } |
5943 | ||
5944 | *data = fail; | |
ad4ebed0 | 5945 | return fail; |
1da177e4 LT |
5946 | } |
5947 | ||
5948 | /** | |
20346722 | 5949 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5950 | * @sp : private member of the device structure, which is a pointer to the |
5951 | * s2io_nic structure. | |
5952 | * @data:variable that returns the result of each of the test conducted by | |
5953 | * the driver. | |
5954 | * Description: | |
20346722 | 5955 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5956 | * register. |
5957 | * Return value: | |
5958 | * 0 on success. | |
5959 | */ | |
5960 | ||
d44570e4 | 5961 | static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 LT |
5962 | { |
5963 | int fail = 0; | |
ad4ebed0 | 5964 | u64 ret_data, org_4F0, org_7F0; |
5965 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5966 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5967 | |
5968 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5969 | /* Note that SPI interface allows write access to all areas |
5970 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5971 | */ | |
5972 | if (sp->device_type == XFRAME_I_DEVICE) | |
5973 | if (!write_eeprom(sp, 0, 0, 3)) | |
5974 | fail = 1; | |
5975 | ||
5976 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5977 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5978 | saved_4F0 = 1; | |
5979 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5980 | saved_7F0 = 1; | |
1da177e4 LT |
5981 | |
5982 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5983 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5984 | fail = 1; |
5985 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5986 | fail = 1; | |
5987 | ||
ad4ebed0 | 5988 | if (ret_data != 0x012345) { |
26b7625c | 5989 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
d44570e4 JP |
5990 | "Data written %llx Data read %llx\n", |
5991 | dev->name, (unsigned long long)0x12345, | |
5992 | (unsigned long long)ret_data); | |
1da177e4 | 5993 | fail = 1; |
ad4ebed0 | 5994 | } |
1da177e4 LT |
5995 | |
5996 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5997 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5998 | |
5999 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 6000 | if (sp->device_type == XFRAME_I_DEVICE) |
6001 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
6002 | fail = 1; | |
1da177e4 | 6003 | |
ad4ebed0 | 6004 | /* Test Write Request at offset 0x7f0 */ |
6005 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 6006 | fail = 1; |
ad4ebed0 | 6007 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
6008 | fail = 1; |
6009 | ||
ad4ebed0 | 6010 | if (ret_data != 0x012345) { |
26b7625c | 6011 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
d44570e4 JP |
6012 | "Data written %llx Data read %llx\n", |
6013 | dev->name, (unsigned long long)0x12345, | |
6014 | (unsigned long long)ret_data); | |
1da177e4 | 6015 | fail = 1; |
ad4ebed0 | 6016 | } |
1da177e4 LT |
6017 | |
6018 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 6019 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 6020 | |
ad4ebed0 | 6021 | if (sp->device_type == XFRAME_I_DEVICE) { |
6022 | /* Test Write Error at offset 0x80 */ | |
6023 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
6024 | fail = 1; | |
1da177e4 | 6025 | |
ad4ebed0 | 6026 | /* Test Write Error at offset 0xfc */ |
6027 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
6028 | fail = 1; | |
1da177e4 | 6029 | |
ad4ebed0 | 6030 | /* Test Write Error at offset 0x100 */ |
6031 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
6032 | fail = 1; | |
1da177e4 | 6033 | |
ad4ebed0 | 6034 | /* Test Write Error at offset 4ec */ |
6035 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
6036 | fail = 1; | |
6037 | } | |
6038 | ||
6039 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
6040 | if (saved_4F0) | |
6041 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
6042 | if (saved_7F0) | |
6043 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
6044 | |
6045 | *data = fail; | |
ad4ebed0 | 6046 | return fail; |
1da177e4 LT |
6047 | } |
6048 | ||
6049 | /** | |
6050 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 6051 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 6052 | * s2io_nic structure. |
20346722 | 6053 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
6054 | * the driver. |
6055 | * Description: | |
6056 | * This invokes the MemBist test of the card. We give around | |
6057 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 6058 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
6059 | * Return value: |
6060 | * 0 on success and -1 on failure. | |
6061 | */ | |
6062 | ||
d44570e4 | 6063 | static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 LT |
6064 | { |
6065 | u8 bist = 0; | |
6066 | int cnt = 0, ret = -1; | |
6067 | ||
6068 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
6069 | bist |= PCI_BIST_START; | |
6070 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
6071 | ||
6072 | while (cnt < 20) { | |
6073 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
6074 | if (!(bist & PCI_BIST_START)) { | |
6075 | *data = (bist & PCI_BIST_CODE_MASK); | |
6076 | ret = 0; | |
6077 | break; | |
6078 | } | |
6079 | msleep(100); | |
6080 | cnt++; | |
6081 | } | |
6082 | ||
6083 | return ret; | |
6084 | } | |
6085 | ||
6086 | /** | |
49ce9c2c | 6087 | * s2io_link_test - verifies the link state of the nic |
20346722 | 6088 | * @sp ; private member of the device structure, which is a pointer to the |
1da177e4 LT |
6089 | * s2io_nic structure. |
6090 | * @data: variable that returns the result of each of the test conducted by | |
6091 | * the driver. | |
6092 | * Description: | |
20346722 | 6093 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
6094 | * argument 'data' appropriately. |
6095 | * Return value: | |
6096 | * 0 on success. | |
6097 | */ | |
6098 | ||
d44570e4 | 6099 | static int s2io_link_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 6100 | { |
1ee6dd77 | 6101 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
6102 | u64 val64; |
6103 | ||
6104 | val64 = readq(&bar0->adapter_status); | |
d44570e4 | 6105 | if (!(LINK_IS_UP(val64))) |
1da177e4 | 6106 | *data = 1; |
c92ca04b AR |
6107 | else |
6108 | *data = 0; | |
1da177e4 | 6109 | |
b41477f3 | 6110 | return *data; |
1da177e4 LT |
6111 | } |
6112 | ||
6113 | /** | |
20346722 | 6114 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
49ce9c2c | 6115 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 6116 | * s2io_nic structure. |
49ce9c2c | 6117 | * @data: variable that returns the result of each of the test |
1da177e4 LT |
6118 | * conducted by the driver. |
6119 | * Description: | |
20346722 | 6120 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
6121 | * access to the RldRam chip on the NIC. |
6122 | * Return value: | |
6123 | * 0 on success. | |
6124 | */ | |
6125 | ||
d44570e4 | 6126 | static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data) |
1da177e4 | 6127 | { |
1ee6dd77 | 6128 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 6129 | u64 val64; |
ad4ebed0 | 6130 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
6131 | |
6132 | val64 = readq(&bar0->adapter_control); | |
6133 | val64 &= ~ADAPTER_ECC_EN; | |
6134 | writeq(val64, &bar0->adapter_control); | |
6135 | ||
6136 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6137 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 6138 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
6139 | |
6140 | val64 = readq(&bar0->mc_rldram_mrs); | |
6141 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
6142 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
6143 | ||
6144 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
6145 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
6146 | ||
6147 | while (iteration < 2) { | |
6148 | val64 = 0x55555555aaaa0000ULL; | |
d44570e4 | 6149 | if (iteration == 1) |
1da177e4 | 6150 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6151 | writeq(val64, &bar0->mc_rldram_test_d0); |
6152 | ||
6153 | val64 = 0xaaaa5a5555550000ULL; | |
d44570e4 | 6154 | if (iteration == 1) |
1da177e4 | 6155 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6156 | writeq(val64, &bar0->mc_rldram_test_d1); |
6157 | ||
6158 | val64 = 0x55aaaaaaaa5a0000ULL; | |
d44570e4 | 6159 | if (iteration == 1) |
1da177e4 | 6160 | val64 ^= 0xFFFFFFFFFFFF0000ULL; |
1da177e4 LT |
6161 | writeq(val64, &bar0->mc_rldram_test_d2); |
6162 | ||
ad4ebed0 | 6163 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
6164 | writeq(val64, &bar0->mc_rldram_test_add); |
6165 | ||
d44570e4 JP |
6166 | val64 = MC_RLDRAM_TEST_MODE | |
6167 | MC_RLDRAM_TEST_WRITE | | |
6168 | MC_RLDRAM_TEST_GO; | |
ad4ebed0 | 6169 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
6170 | |
6171 | for (cnt = 0; cnt < 5; cnt++) { | |
6172 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6173 | if (val64 & MC_RLDRAM_TEST_DONE) | |
6174 | break; | |
6175 | msleep(200); | |
6176 | } | |
6177 | ||
6178 | if (cnt == 5) | |
6179 | break; | |
6180 | ||
ad4ebed0 | 6181 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
6182 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
6183 | |
6184 | for (cnt = 0; cnt < 5; cnt++) { | |
6185 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
6186 | if (val64 & MC_RLDRAM_TEST_DONE) | |
6187 | break; | |
6188 | msleep(500); | |
6189 | } | |
6190 | ||
6191 | if (cnt == 5) | |
6192 | break; | |
6193 | ||
6194 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 6195 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
6196 | test_fail = 1; | |
1da177e4 LT |
6197 | |
6198 | iteration++; | |
6199 | } | |
6200 | ||
ad4ebed0 | 6201 | *data = test_fail; |
1da177e4 | 6202 | |
ad4ebed0 | 6203 | /* Bring the adapter out of test mode */ |
6204 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
6205 | ||
6206 | return test_fail; | |
1da177e4 LT |
6207 | } |
6208 | ||
6209 | /** | |
6210 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
6211 | * @sp : private member of the device structure, which is a pointer to the | |
6212 | * s2io_nic structure. | |
6213 | * @ethtest : pointer to a ethtool command specific structure that will be | |
6214 | * returned to the user. | |
20346722 | 6215 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
6216 | * conducted by the driver. |
6217 | * Description: | |
6218 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
6219 | * the health of the card. | |
6220 | * Return value: | |
6221 | * void | |
6222 | */ | |
6223 | ||
6224 | static void s2io_ethtool_test(struct net_device *dev, | |
6225 | struct ethtool_test *ethtest, | |
d44570e4 | 6226 | uint64_t *data) |
1da177e4 | 6227 | { |
4cf1653a | 6228 | struct s2io_nic *sp = netdev_priv(dev); |
1da177e4 LT |
6229 | int orig_state = netif_running(sp->dev); |
6230 | ||
6231 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
6232 | /* Offline Tests. */ | |
20346722 | 6233 | if (orig_state) |
1da177e4 | 6234 | s2io_close(sp->dev); |
1da177e4 LT |
6235 | |
6236 | if (s2io_register_test(sp, &data[0])) | |
6237 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6238 | ||
6239 | s2io_reset(sp); | |
1da177e4 LT |
6240 | |
6241 | if (s2io_rldram_test(sp, &data[3])) | |
6242 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6243 | ||
6244 | s2io_reset(sp); | |
1da177e4 LT |
6245 | |
6246 | if (s2io_eeprom_test(sp, &data[1])) | |
6247 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6248 | ||
6249 | if (s2io_bist_test(sp, &data[4])) | |
6250 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6251 | ||
6252 | if (orig_state) | |
6253 | s2io_open(sp->dev); | |
6254 | ||
6255 | data[2] = 0; | |
6256 | } else { | |
6257 | /* Online Tests. */ | |
6258 | if (!orig_state) { | |
d44570e4 | 6259 | DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n", |
1da177e4 LT |
6260 | dev->name); |
6261 | data[0] = -1; | |
6262 | data[1] = -1; | |
6263 | data[2] = -1; | |
6264 | data[3] = -1; | |
6265 | data[4] = -1; | |
6266 | } | |
6267 | ||
6268 | if (s2io_link_test(sp, &data[2])) | |
6269 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
6270 | ||
6271 | data[0] = 0; | |
6272 | data[1] = 0; | |
6273 | data[3] = 0; | |
6274 | data[4] = 0; | |
6275 | } | |
6276 | } | |
6277 | ||
6278 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
6279 | struct ethtool_stats *estats, | |
d44570e4 | 6280 | u64 *tmp_stats) |
1da177e4 | 6281 | { |
8116f3cf | 6282 | int i = 0, k; |
4cf1653a | 6283 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c JP |
6284 | struct stat_block *stats = sp->mac_control.stats_info; |
6285 | struct swStat *swstats = &stats->sw_stat; | |
6286 | struct xpakStat *xstats = &stats->xpak_stat; | |
1da177e4 | 6287 | |
7ba013ac | 6288 | s2io_updt_stats(sp); |
541ae68f | 6289 | tmp_stats[i++] = |
ffb5df6c JP |
6290 | (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 | |
6291 | le32_to_cpu(stats->tmac_frms); | |
541ae68f | 6292 | tmp_stats[i++] = |
ffb5df6c JP |
6293 | (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 | |
6294 | le32_to_cpu(stats->tmac_data_octets); | |
6295 | tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms); | |
541ae68f | 6296 | tmp_stats[i++] = |
ffb5df6c JP |
6297 | (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 | |
6298 | le32_to_cpu(stats->tmac_mcst_frms); | |
541ae68f | 6299 | tmp_stats[i++] = |
ffb5df6c JP |
6300 | (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 | |
6301 | le32_to_cpu(stats->tmac_bcst_frms); | |
6302 | tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms); | |
bd1034f0 | 6303 | tmp_stats[i++] = |
ffb5df6c JP |
6304 | (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 | |
6305 | le32_to_cpu(stats->tmac_ttl_octets); | |
bd1034f0 | 6306 | tmp_stats[i++] = |
ffb5df6c JP |
6307 | (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 | |
6308 | le32_to_cpu(stats->tmac_ucst_frms); | |
d44570e4 | 6309 | tmp_stats[i++] = |
ffb5df6c JP |
6310 | (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 | |
6311 | le32_to_cpu(stats->tmac_nucst_frms); | |
541ae68f | 6312 | tmp_stats[i++] = |
ffb5df6c JP |
6313 | (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 | |
6314 | le32_to_cpu(stats->tmac_any_err_frms); | |
6315 | tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets); | |
6316 | tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets); | |
541ae68f | 6317 | tmp_stats[i++] = |
ffb5df6c JP |
6318 | (u64)le32_to_cpu(stats->tmac_vld_ip_oflow) << 32 | |
6319 | le32_to_cpu(stats->tmac_vld_ip); | |
541ae68f | 6320 | tmp_stats[i++] = |
ffb5df6c JP |
6321 | (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 | |
6322 | le32_to_cpu(stats->tmac_drop_ip); | |
541ae68f | 6323 | tmp_stats[i++] = |
ffb5df6c JP |
6324 | (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 | |
6325 | le32_to_cpu(stats->tmac_icmp); | |
541ae68f | 6326 | tmp_stats[i++] = |
ffb5df6c JP |
6327 | (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 | |
6328 | le32_to_cpu(stats->tmac_rst_tcp); | |
6329 | tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp); | |
6330 | tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 | | |
6331 | le32_to_cpu(stats->tmac_udp); | |
541ae68f | 6332 | tmp_stats[i++] = |
ffb5df6c JP |
6333 | (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 | |
6334 | le32_to_cpu(stats->rmac_vld_frms); | |
541ae68f | 6335 | tmp_stats[i++] = |
ffb5df6c JP |
6336 | (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 | |
6337 | le32_to_cpu(stats->rmac_data_octets); | |
6338 | tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms); | |
6339 | tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms); | |
541ae68f | 6340 | tmp_stats[i++] = |
ffb5df6c JP |
6341 | (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 | |
6342 | le32_to_cpu(stats->rmac_vld_mcst_frms); | |
541ae68f | 6343 | tmp_stats[i++] = |
ffb5df6c JP |
6344 | (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 | |
6345 | le32_to_cpu(stats->rmac_vld_bcst_frms); | |
6346 | tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms); | |
6347 | tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms); | |
6348 | tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms); | |
6349 | tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms); | |
6350 | tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms); | |
d44570e4 | 6351 | tmp_stats[i++] = |
ffb5df6c JP |
6352 | (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 | |
6353 | le32_to_cpu(stats->rmac_ttl_octets); | |
bd1034f0 | 6354 | tmp_stats[i++] = |
ffb5df6c JP |
6355 | (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32 |
6356 | | le32_to_cpu(stats->rmac_accepted_ucst_frms); | |
d44570e4 | 6357 | tmp_stats[i++] = |
ffb5df6c JP |
6358 | (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow) |
6359 | << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms); | |
541ae68f | 6360 | tmp_stats[i++] = |
ffb5df6c JP |
6361 | (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 | |
6362 | le32_to_cpu(stats->rmac_discarded_frms); | |
d44570e4 | 6363 | tmp_stats[i++] = |
ffb5df6c JP |
6364 | (u64)le32_to_cpu(stats->rmac_drop_events_oflow) |
6365 | << 32 | le32_to_cpu(stats->rmac_drop_events); | |
6366 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets); | |
6367 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms); | |
541ae68f | 6368 | tmp_stats[i++] = |
ffb5df6c JP |
6369 | (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 | |
6370 | le32_to_cpu(stats->rmac_usized_frms); | |
541ae68f | 6371 | tmp_stats[i++] = |
ffb5df6c JP |
6372 | (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 | |
6373 | le32_to_cpu(stats->rmac_osized_frms); | |
541ae68f | 6374 | tmp_stats[i++] = |
ffb5df6c JP |
6375 | (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 | |
6376 | le32_to_cpu(stats->rmac_frag_frms); | |
541ae68f | 6377 | tmp_stats[i++] = |
ffb5df6c JP |
6378 | (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 | |
6379 | le32_to_cpu(stats->rmac_jabber_frms); | |
6380 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms); | |
6381 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms); | |
6382 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms); | |
6383 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms); | |
6384 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms); | |
6385 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms); | |
bd1034f0 | 6386 | tmp_stats[i++] = |
ffb5df6c JP |
6387 | (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 | |
6388 | le32_to_cpu(stats->rmac_ip); | |
6389 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets); | |
6390 | tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip); | |
bd1034f0 | 6391 | tmp_stats[i++] = |
ffb5df6c JP |
6392 | (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 | |
6393 | le32_to_cpu(stats->rmac_drop_ip); | |
bd1034f0 | 6394 | tmp_stats[i++] = |
ffb5df6c JP |
6395 | (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 | |
6396 | le32_to_cpu(stats->rmac_icmp); | |
6397 | tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp); | |
bd1034f0 | 6398 | tmp_stats[i++] = |
ffb5df6c JP |
6399 | (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 | |
6400 | le32_to_cpu(stats->rmac_udp); | |
541ae68f | 6401 | tmp_stats[i++] = |
ffb5df6c JP |
6402 | (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 | |
6403 | le32_to_cpu(stats->rmac_err_drp_udp); | |
6404 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym); | |
6405 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0); | |
6406 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1); | |
6407 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2); | |
6408 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3); | |
6409 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4); | |
6410 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5); | |
6411 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6); | |
6412 | tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7); | |
6413 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0); | |
6414 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1); | |
6415 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2); | |
6416 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3); | |
6417 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4); | |
6418 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5); | |
6419 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6); | |
6420 | tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7); | |
541ae68f | 6421 | tmp_stats[i++] = |
ffb5df6c JP |
6422 | (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 | |
6423 | le32_to_cpu(stats->rmac_pause_cnt); | |
6424 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt); | |
6425 | tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt); | |
541ae68f | 6426 | tmp_stats[i++] = |
ffb5df6c JP |
6427 | (u64)le32_to_cpu(stats->rmac_accepted_ip_oflow) << 32 | |
6428 | le32_to_cpu(stats->rmac_accepted_ip); | |
6429 | tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp); | |
6430 | tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt); | |
6431 | tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt); | |
6432 | tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt); | |
6433 | tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt); | |
6434 | tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt); | |
6435 | tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt); | |
6436 | tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt); | |
6437 | tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt); | |
6438 | tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt); | |
6439 | tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt); | |
6440 | tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt); | |
6441 | tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt); | |
6442 | tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt); | |
6443 | tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt); | |
6444 | tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt); | |
6445 | tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt); | |
6446 | tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt); | |
6447 | tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt); | |
fa1f0cb3 SS |
6448 | |
6449 | /* Enhanced statistics exist only for Hercules */ | |
d44570e4 | 6450 | if (sp->device_type == XFRAME_II_DEVICE) { |
fa1f0cb3 | 6451 | tmp_stats[i++] = |
ffb5df6c | 6452 | le64_to_cpu(stats->rmac_ttl_1519_4095_frms); |
fa1f0cb3 | 6453 | tmp_stats[i++] = |
ffb5df6c | 6454 | le64_to_cpu(stats->rmac_ttl_4096_8191_frms); |
fa1f0cb3 | 6455 | tmp_stats[i++] = |
ffb5df6c JP |
6456 | le64_to_cpu(stats->rmac_ttl_8192_max_frms); |
6457 | tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms); | |
6458 | tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms); | |
6459 | tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms); | |
6460 | tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms); | |
6461 | tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms); | |
6462 | tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard); | |
6463 | tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard); | |
6464 | tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard); | |
6465 | tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard); | |
6466 | tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard); | |
6467 | tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard); | |
6468 | tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard); | |
6469 | tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt); | |
fa1f0cb3 SS |
6470 | } |
6471 | ||
7ba013ac | 6472 | tmp_stats[i++] = 0; |
ffb5df6c JP |
6473 | tmp_stats[i++] = swstats->single_ecc_errs; |
6474 | tmp_stats[i++] = swstats->double_ecc_errs; | |
6475 | tmp_stats[i++] = swstats->parity_err_cnt; | |
6476 | tmp_stats[i++] = swstats->serious_err_cnt; | |
6477 | tmp_stats[i++] = swstats->soft_reset_cnt; | |
6478 | tmp_stats[i++] = swstats->fifo_full_cnt; | |
8116f3cf | 6479 | for (k = 0; k < MAX_RX_RINGS; k++) |
ffb5df6c JP |
6480 | tmp_stats[i++] = swstats->ring_full_cnt[k]; |
6481 | tmp_stats[i++] = xstats->alarm_transceiver_temp_high; | |
6482 | tmp_stats[i++] = xstats->alarm_transceiver_temp_low; | |
6483 | tmp_stats[i++] = xstats->alarm_laser_bias_current_high; | |
6484 | tmp_stats[i++] = xstats->alarm_laser_bias_current_low; | |
6485 | tmp_stats[i++] = xstats->alarm_laser_output_power_high; | |
6486 | tmp_stats[i++] = xstats->alarm_laser_output_power_low; | |
6487 | tmp_stats[i++] = xstats->warn_transceiver_temp_high; | |
6488 | tmp_stats[i++] = xstats->warn_transceiver_temp_low; | |
6489 | tmp_stats[i++] = xstats->warn_laser_bias_current_high; | |
6490 | tmp_stats[i++] = xstats->warn_laser_bias_current_low; | |
6491 | tmp_stats[i++] = xstats->warn_laser_output_power_high; | |
6492 | tmp_stats[i++] = xstats->warn_laser_output_power_low; | |
6493 | tmp_stats[i++] = swstats->clubbed_frms_cnt; | |
6494 | tmp_stats[i++] = swstats->sending_both; | |
6495 | tmp_stats[i++] = swstats->outof_sequence_pkts; | |
6496 | tmp_stats[i++] = swstats->flush_max_pkts; | |
6497 | if (swstats->num_aggregations) { | |
6498 | u64 tmp = swstats->sum_avg_pkts_aggregated; | |
bd1034f0 | 6499 | int count = 0; |
6aa20a22 | 6500 | /* |
bd1034f0 AR |
6501 | * Since 64-bit divide does not work on all platforms, |
6502 | * do repeated subtraction. | |
6503 | */ | |
ffb5df6c JP |
6504 | while (tmp >= swstats->num_aggregations) { |
6505 | tmp -= swstats->num_aggregations; | |
bd1034f0 AR |
6506 | count++; |
6507 | } | |
6508 | tmp_stats[i++] = count; | |
d44570e4 | 6509 | } else |
bd1034f0 | 6510 | tmp_stats[i++] = 0; |
ffb5df6c JP |
6511 | tmp_stats[i++] = swstats->mem_alloc_fail_cnt; |
6512 | tmp_stats[i++] = swstats->pci_map_fail_cnt; | |
6513 | tmp_stats[i++] = swstats->watchdog_timer_cnt; | |
6514 | tmp_stats[i++] = swstats->mem_allocated; | |
6515 | tmp_stats[i++] = swstats->mem_freed; | |
6516 | tmp_stats[i++] = swstats->link_up_cnt; | |
6517 | tmp_stats[i++] = swstats->link_down_cnt; | |
6518 | tmp_stats[i++] = swstats->link_up_time; | |
6519 | tmp_stats[i++] = swstats->link_down_time; | |
6520 | ||
6521 | tmp_stats[i++] = swstats->tx_buf_abort_cnt; | |
6522 | tmp_stats[i++] = swstats->tx_desc_abort_cnt; | |
6523 | tmp_stats[i++] = swstats->tx_parity_err_cnt; | |
6524 | tmp_stats[i++] = swstats->tx_link_loss_cnt; | |
6525 | tmp_stats[i++] = swstats->tx_list_proc_err_cnt; | |
6526 | ||
6527 | tmp_stats[i++] = swstats->rx_parity_err_cnt; | |
6528 | tmp_stats[i++] = swstats->rx_abort_cnt; | |
6529 | tmp_stats[i++] = swstats->rx_parity_abort_cnt; | |
6530 | tmp_stats[i++] = swstats->rx_rda_fail_cnt; | |
6531 | tmp_stats[i++] = swstats->rx_unkn_prot_cnt; | |
6532 | tmp_stats[i++] = swstats->rx_fcs_err_cnt; | |
6533 | tmp_stats[i++] = swstats->rx_buf_size_err_cnt; | |
6534 | tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt; | |
6535 | tmp_stats[i++] = swstats->rx_unkn_err_cnt; | |
6536 | tmp_stats[i++] = swstats->tda_err_cnt; | |
6537 | tmp_stats[i++] = swstats->pfc_err_cnt; | |
6538 | tmp_stats[i++] = swstats->pcc_err_cnt; | |
6539 | tmp_stats[i++] = swstats->tti_err_cnt; | |
6540 | tmp_stats[i++] = swstats->tpa_err_cnt; | |
6541 | tmp_stats[i++] = swstats->sm_err_cnt; | |
6542 | tmp_stats[i++] = swstats->lso_err_cnt; | |
6543 | tmp_stats[i++] = swstats->mac_tmac_err_cnt; | |
6544 | tmp_stats[i++] = swstats->mac_rmac_err_cnt; | |
6545 | tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt; | |
6546 | tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt; | |
6547 | tmp_stats[i++] = swstats->rc_err_cnt; | |
6548 | tmp_stats[i++] = swstats->prc_pcix_err_cnt; | |
6549 | tmp_stats[i++] = swstats->rpa_err_cnt; | |
6550 | tmp_stats[i++] = swstats->rda_err_cnt; | |
6551 | tmp_stats[i++] = swstats->rti_err_cnt; | |
6552 | tmp_stats[i++] = swstats->mc_err_cnt; | |
1da177e4 LT |
6553 | } |
6554 | ||
ac1f60db | 6555 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 | 6556 | { |
d44570e4 | 6557 | return XENA_REG_SPACE; |
1da177e4 LT |
6558 | } |
6559 | ||
6560 | ||
ac1f60db | 6561 | static int s2io_get_eeprom_len(struct net_device *dev) |
1da177e4 | 6562 | { |
d44570e4 | 6563 | return XENA_EEPROM_SPACE; |
1da177e4 LT |
6564 | } |
6565 | ||
b9f2c044 | 6566 | static int s2io_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 6567 | { |
4cf1653a | 6568 | struct s2io_nic *sp = netdev_priv(dev); |
b9f2c044 JG |
6569 | |
6570 | switch (sset) { | |
6571 | case ETH_SS_TEST: | |
6572 | return S2IO_TEST_LEN; | |
6573 | case ETH_SS_STATS: | |
d44570e4 | 6574 | switch (sp->device_type) { |
b9f2c044 JG |
6575 | case XFRAME_I_DEVICE: |
6576 | return XFRAME_I_STAT_LEN; | |
6577 | case XFRAME_II_DEVICE: | |
6578 | return XFRAME_II_STAT_LEN; | |
6579 | default: | |
6580 | return 0; | |
6581 | } | |
6582 | default: | |
6583 | return -EOPNOTSUPP; | |
6584 | } | |
1da177e4 | 6585 | } |
ac1f60db AB |
6586 | |
6587 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
d44570e4 | 6588 | u32 stringset, u8 *data) |
1da177e4 | 6589 | { |
fa1f0cb3 | 6590 | int stat_size = 0; |
4cf1653a | 6591 | struct s2io_nic *sp = netdev_priv(dev); |
fa1f0cb3 | 6592 | |
1da177e4 LT |
6593 | switch (stringset) { |
6594 | case ETH_SS_TEST: | |
6595 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
6596 | break; | |
6597 | case ETH_SS_STATS: | |
fa1f0cb3 | 6598 | stat_size = sizeof(ethtool_xena_stats_keys); |
d44570e4 JP |
6599 | memcpy(data, ðtool_xena_stats_keys, stat_size); |
6600 | if (sp->device_type == XFRAME_II_DEVICE) { | |
fa1f0cb3 | 6601 | memcpy(data + stat_size, |
d44570e4 JP |
6602 | ðtool_enhanced_stats_keys, |
6603 | sizeof(ethtool_enhanced_stats_keys)); | |
fa1f0cb3 SS |
6604 | stat_size += sizeof(ethtool_enhanced_stats_keys); |
6605 | } | |
6606 | ||
6607 | memcpy(data + stat_size, ðtool_driver_stats_keys, | |
d44570e4 | 6608 | sizeof(ethtool_driver_stats_keys)); |
1da177e4 LT |
6609 | } |
6610 | } | |
1da177e4 | 6611 | |
c8f44aff | 6612 | static int s2io_set_features(struct net_device *dev, netdev_features_t features) |
958de193 JM |
6613 | { |
6614 | struct s2io_nic *sp = netdev_priv(dev); | |
c8f44aff | 6615 | netdev_features_t changed = (features ^ dev->features) & NETIF_F_LRO; |
958de193 JM |
6616 | |
6617 | if (changed && netif_running(dev)) { | |
b437a8cc MM |
6618 | int rc; |
6619 | ||
958de193 JM |
6620 | s2io_stop_all_tx_queue(sp); |
6621 | s2io_card_down(sp); | |
b437a8cc | 6622 | dev->features = features; |
958de193 JM |
6623 | rc = s2io_card_up(sp); |
6624 | if (rc) | |
6625 | s2io_reset(sp); | |
6626 | else | |
6627 | s2io_start_all_tx_queue(sp); | |
b437a8cc MM |
6628 | |
6629 | return rc ? rc : 1; | |
958de193 JM |
6630 | } |
6631 | ||
b437a8cc | 6632 | return 0; |
958de193 JM |
6633 | } |
6634 | ||
7282d491 | 6635 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
6636 | .get_settings = s2io_ethtool_gset, |
6637 | .set_settings = s2io_ethtool_sset, | |
6638 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
6639 | .get_regs_len = s2io_ethtool_get_regs_len, | |
6640 | .get_regs = s2io_ethtool_gregs, | |
6641 | .get_link = ethtool_op_get_link, | |
6642 | .get_eeprom_len = s2io_get_eeprom_len, | |
6643 | .get_eeprom = s2io_ethtool_geeprom, | |
6644 | .set_eeprom = s2io_ethtool_seeprom, | |
0cec35eb | 6645 | .get_ringparam = s2io_ethtool_gringparam, |
1da177e4 LT |
6646 | .get_pauseparam = s2io_ethtool_getpause_data, |
6647 | .set_pauseparam = s2io_ethtool_setpause_data, | |
1da177e4 LT |
6648 | .self_test = s2io_ethtool_test, |
6649 | .get_strings = s2io_ethtool_get_strings, | |
034e3450 | 6650 | .set_phys_id = s2io_ethtool_set_led, |
b9f2c044 JG |
6651 | .get_ethtool_stats = s2io_get_ethtool_stats, |
6652 | .get_sset_count = s2io_get_sset_count, | |
1da177e4 LT |
6653 | }; |
6654 | ||
6655 | /** | |
20346722 | 6656 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
6657 | * @dev : Device pointer. |
6658 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
6659 | * a proprietary structure used to pass information to the driver. | |
6660 | * @cmd : This is used to distinguish between the different commands that | |
6661 | * can be passed to the IOCTL functions. | |
6662 | * Description: | |
20346722 K |
6663 | * Currently there are no special functionality supported in IOCTL, hence |
6664 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
6665 | */ |
6666 | ||
ac1f60db | 6667 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
6668 | { |
6669 | return -EOPNOTSUPP; | |
6670 | } | |
6671 | ||
6672 | /** | |
6673 | * s2io_change_mtu - entry point to change MTU size for the device. | |
6674 | * @dev : device pointer. | |
6675 | * @new_mtu : the new MTU size for the device. | |
6676 | * Description: A driver entry point to change MTU size for the device. | |
6677 | * Before changing the MTU the device must be stopped. | |
6678 | * Return value: | |
6679 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
6680 | * file on failure. | |
6681 | */ | |
6682 | ||
ac1f60db | 6683 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 6684 | { |
4cf1653a | 6685 | struct s2io_nic *sp = netdev_priv(dev); |
9f74ffde | 6686 | int ret = 0; |
1da177e4 LT |
6687 | |
6688 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
d44570e4 | 6689 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name); |
1da177e4 LT |
6690 | return -EPERM; |
6691 | } | |
6692 | ||
1da177e4 | 6693 | dev->mtu = new_mtu; |
d8892c6e | 6694 | if (netif_running(dev)) { |
3a3d5756 | 6695 | s2io_stop_all_tx_queue(sp); |
e6a8fee2 | 6696 | s2io_card_down(sp); |
9f74ffde SH |
6697 | ret = s2io_card_up(sp); |
6698 | if (ret) { | |
d8892c6e | 6699 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", |
b39d66a8 | 6700 | __func__); |
9f74ffde | 6701 | return ret; |
d8892c6e | 6702 | } |
3a3d5756 | 6703 | s2io_wake_all_tx_queue(sp); |
d8892c6e | 6704 | } else { /* Device is down */ |
1ee6dd77 | 6705 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e K |
6706 | u64 val64 = new_mtu; |
6707 | ||
6708 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
6709 | } | |
1da177e4 | 6710 | |
9f74ffde | 6711 | return ret; |
1da177e4 LT |
6712 | } |
6713 | ||
1da177e4 LT |
6714 | /** |
6715 | * s2io_set_link - Set the LInk status | |
6716 | * @data: long pointer to device private structue | |
6717 | * Description: Sets the link status for the adapter | |
6718 | */ | |
6719 | ||
c4028958 | 6720 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 6721 | { |
d44570e4 JP |
6722 | struct s2io_nic *nic = container_of(work, struct s2io_nic, |
6723 | set_link_task); | |
1da177e4 | 6724 | struct net_device *dev = nic->dev; |
1ee6dd77 | 6725 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
6726 | register u64 val64; |
6727 | u16 subid; | |
6728 | ||
22747d6b FR |
6729 | rtnl_lock(); |
6730 | ||
6731 | if (!netif_running(dev)) | |
6732 | goto out_unlock; | |
6733 | ||
92b84437 | 6734 | if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) { |
1da177e4 | 6735 | /* The card is being reset, no point doing anything */ |
22747d6b | 6736 | goto out_unlock; |
1da177e4 LT |
6737 | } |
6738 | ||
6739 | subid = nic->pdev->subsystem_device; | |
a371a07d K |
6740 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
6741 | /* | |
6742 | * Allow a small delay for the NICs self initiated | |
6743 | * cleanup to complete. | |
6744 | */ | |
6745 | msleep(100); | |
6746 | } | |
1da177e4 LT |
6747 | |
6748 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
6749 | if (LINK_IS_UP(val64)) { |
6750 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
6751 | if (verify_xena_quiescence(nic)) { | |
6752 | val64 = readq(&bar0->adapter_control); | |
6753 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 6754 | writeq(val64, &bar0->adapter_control); |
19a60522 | 6755 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
d44570e4 | 6756 | nic->device_type, subid)) { |
19a60522 SS |
6757 | val64 = readq(&bar0->gpio_control); |
6758 | val64 |= GPIO_CTRL_GPIO_0; | |
6759 | writeq(val64, &bar0->gpio_control); | |
6760 | val64 = readq(&bar0->gpio_control); | |
6761 | } else { | |
6762 | val64 |= ADAPTER_LED_ON; | |
6763 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 6764 | } |
f957bcf0 | 6765 | nic->device_enabled_once = true; |
19a60522 | 6766 | } else { |
9e39f7c5 JP |
6767 | DBG_PRINT(ERR_DBG, |
6768 | "%s: Error: device is not Quiescent\n", | |
6769 | dev->name); | |
3a3d5756 | 6770 | s2io_stop_all_tx_queue(nic); |
1da177e4 | 6771 | } |
19a60522 | 6772 | } |
92c48799 SS |
6773 | val64 = readq(&bar0->adapter_control); |
6774 | val64 |= ADAPTER_LED_ON; | |
6775 | writeq(val64, &bar0->adapter_control); | |
6776 | s2io_link(nic, LINK_UP); | |
19a60522 SS |
6777 | } else { |
6778 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
6779 | subid)) { | |
6780 | val64 = readq(&bar0->gpio_control); | |
6781 | val64 &= ~GPIO_CTRL_GPIO_0; | |
6782 | writeq(val64, &bar0->gpio_control); | |
6783 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 6784 | } |
92c48799 SS |
6785 | /* turn off LED */ |
6786 | val64 = readq(&bar0->adapter_control); | |
d44570e4 | 6787 | val64 = val64 & (~ADAPTER_LED_ON); |
92c48799 | 6788 | writeq(val64, &bar0->adapter_control); |
19a60522 | 6789 | s2io_link(nic, LINK_DOWN); |
1da177e4 | 6790 | } |
92b84437 | 6791 | clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state)); |
22747d6b FR |
6792 | |
6793 | out_unlock: | |
d8d70caf | 6794 | rtnl_unlock(); |
1da177e4 LT |
6795 | } |
6796 | ||
1ee6dd77 | 6797 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
d44570e4 JP |
6798 | struct buffAdd *ba, |
6799 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
6800 | u64 *temp2, int size) | |
5d3213cc AR |
6801 | { |
6802 | struct net_device *dev = sp->dev; | |
491abf25 | 6803 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
5d3213cc AR |
6804 | |
6805 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6806 | struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; |
5d3213cc AR |
6807 | /* allocate skb */ |
6808 | if (*skb) { | |
6809 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
6810 | /* | |
6811 | * As Rx frame are not going to be processed, | |
6812 | * using same mapped address for the Rxd | |
6813 | * buffer pointer | |
6814 | */ | |
6d517a27 | 6815 | rxdp1->Buffer0_ptr = *temp0; |
5d3213cc | 6816 | } else { |
c056b734 | 6817 | *skb = netdev_alloc_skb(dev, size); |
5d3213cc | 6818 | if (!(*skb)) { |
9e39f7c5 JP |
6819 | DBG_PRINT(INFO_DBG, |
6820 | "%s: Out of memory to allocate %s\n", | |
6821 | dev->name, "1 buf mode SKBs"); | |
ffb5df6c | 6822 | stats->mem_alloc_fail_cnt++; |
5d3213cc AR |
6823 | return -ENOMEM ; |
6824 | } | |
ffb5df6c | 6825 | stats->mem_allocated += (*skb)->truesize; |
5d3213cc AR |
6826 | /* storing the mapped addr in a temp variable |
6827 | * such it will be used for next rxd whose | |
6828 | * Host Control is NULL | |
6829 | */ | |
6d517a27 | 6830 | rxdp1->Buffer0_ptr = *temp0 = |
d44570e4 JP |
6831 | pci_map_single(sp->pdev, (*skb)->data, |
6832 | size - NET_IP_ALIGN, | |
6833 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6834 | if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr)) |
491abf25 | 6835 | goto memalloc_failed; |
5d3213cc AR |
6836 | rxdp->Host_Control = (unsigned long) (*skb); |
6837 | } | |
6838 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6839 | struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; |
5d3213cc AR |
6840 | /* Two buffer Mode */ |
6841 | if (*skb) { | |
6d517a27 VP |
6842 | rxdp3->Buffer2_ptr = *temp2; |
6843 | rxdp3->Buffer0_ptr = *temp0; | |
6844 | rxdp3->Buffer1_ptr = *temp1; | |
5d3213cc | 6845 | } else { |
c056b734 | 6846 | *skb = netdev_alloc_skb(dev, size); |
2ceaac75 | 6847 | if (!(*skb)) { |
9e39f7c5 JP |
6848 | DBG_PRINT(INFO_DBG, |
6849 | "%s: Out of memory to allocate %s\n", | |
6850 | dev->name, | |
6851 | "2 buf mode SKBs"); | |
ffb5df6c | 6852 | stats->mem_alloc_fail_cnt++; |
2ceaac75 DR |
6853 | return -ENOMEM; |
6854 | } | |
ffb5df6c | 6855 | stats->mem_allocated += (*skb)->truesize; |
6d517a27 | 6856 | rxdp3->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6857 | pci_map_single(sp->pdev, (*skb)->data, |
6858 | dev->mtu + 4, | |
6859 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6860 | if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr)) |
491abf25 | 6861 | goto memalloc_failed; |
6d517a27 | 6862 | rxdp3->Buffer0_ptr = *temp0 = |
d44570e4 JP |
6863 | pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, |
6864 | PCI_DMA_FROMDEVICE); | |
8d8bb39b | 6865 | if (pci_dma_mapping_error(sp->pdev, |
d44570e4 JP |
6866 | rxdp3->Buffer0_ptr)) { |
6867 | pci_unmap_single(sp->pdev, | |
6868 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
6869 | dev->mtu + 4, | |
6870 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6871 | goto memalloc_failed; |
6872 | } | |
5d3213cc AR |
6873 | rxdp->Host_Control = (unsigned long) (*skb); |
6874 | ||
6875 | /* Buffer-1 will be dummy buffer not used */ | |
6d517a27 | 6876 | rxdp3->Buffer1_ptr = *temp1 = |
5d3213cc | 6877 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
d44570e4 | 6878 | PCI_DMA_FROMDEVICE); |
8d8bb39b | 6879 | if (pci_dma_mapping_error(sp->pdev, |
d44570e4 JP |
6880 | rxdp3->Buffer1_ptr)) { |
6881 | pci_unmap_single(sp->pdev, | |
6882 | (dma_addr_t)rxdp3->Buffer0_ptr, | |
6883 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
6884 | pci_unmap_single(sp->pdev, | |
6885 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
6886 | dev->mtu + 4, | |
6887 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6888 | goto memalloc_failed; |
6889 | } | |
5d3213cc AR |
6890 | } |
6891 | } | |
6892 | return 0; | |
d44570e4 JP |
6893 | |
6894 | memalloc_failed: | |
6895 | stats->pci_map_fail_cnt++; | |
6896 | stats->mem_freed += (*skb)->truesize; | |
6897 | dev_kfree_skb(*skb); | |
6898 | return -ENOMEM; | |
5d3213cc | 6899 | } |
491abf25 | 6900 | |
1ee6dd77 RB |
6901 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6902 | int size) | |
5d3213cc AR |
6903 | { |
6904 | struct net_device *dev = sp->dev; | |
6905 | if (sp->rxd_mode == RXD_MODE_1) { | |
d44570e4 | 6906 | rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); |
5d3213cc AR |
6907 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
6908 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6909 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
d44570e4 | 6910 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4); |
5d3213cc AR |
6911 | } |
6912 | } | |
6913 | ||
1ee6dd77 | 6914 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6915 | { |
6916 | int i, j, k, blk_cnt = 0, size; | |
5d3213cc | 6917 | struct config_param *config = &sp->config; |
ffb5df6c | 6918 | struct mac_info *mac_control = &sp->mac_control; |
5d3213cc | 6919 | struct net_device *dev = sp->dev; |
1ee6dd77 | 6920 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6921 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6922 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6923 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6924 | ||
6925 | /* Calculate the size based on ring mode */ | |
6926 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6927 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6928 | if (sp->rxd_mode == RXD_MODE_1) | |
6929 | size += NET_IP_ALIGN; | |
6930 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6931 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
5d3213cc AR |
6932 | |
6933 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
6934 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
6935 | struct ring_info *ring = &mac_control->rings[i]; | |
6936 | ||
d44570e4 | 6937 | blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1); |
5d3213cc AR |
6938 | |
6939 | for (j = 0; j < blk_cnt; j++) { | |
6940 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
d44570e4 JP |
6941 | rxdp = ring->rx_blocks[j].rxds[k].virt_addr; |
6942 | if (sp->rxd_mode == RXD_MODE_3B) | |
13d866a9 | 6943 | ba = &ring->ba[j][k]; |
d44570e4 | 6944 | if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb, |
64699336 JP |
6945 | &temp0_64, |
6946 | &temp1_64, | |
6947 | &temp2_64, | |
d44570e4 | 6948 | size) == -ENOMEM) { |
ac1f90d6 SS |
6949 | return 0; |
6950 | } | |
5d3213cc AR |
6951 | |
6952 | set_rxd_buffer_size(sp, rxdp, size); | |
6953 | wmb(); | |
6954 | /* flip the Ownership bit to Hardware */ | |
6955 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6956 | } | |
6957 | } | |
6958 | } | |
6959 | return 0; | |
6960 | ||
6961 | } | |
6962 | ||
d44570e4 | 6963 | static int s2io_add_isr(struct s2io_nic *sp) |
1da177e4 | 6964 | { |
e6a8fee2 | 6965 | int ret = 0; |
c92ca04b | 6966 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6967 | int err = 0; |
1da177e4 | 6968 | |
eaae7f72 | 6969 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
6970 | ret = s2io_enable_msi_x(sp); |
6971 | if (ret) { | |
6972 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
eaae7f72 | 6973 | sp->config.intr_type = INTA; |
20346722 | 6974 | } |
1da177e4 | 6975 | |
d44570e4 JP |
6976 | /* |
6977 | * Store the values of the MSIX table in | |
6978 | * the struct s2io_nic structure | |
6979 | */ | |
e6a8fee2 | 6980 | store_xmsi_data(sp); |
c92ca04b | 6981 | |
e6a8fee2 | 6982 | /* After proper initialization of H/W, register ISR */ |
eaae7f72 | 6983 | if (sp->config.intr_type == MSI_X) { |
ac731ab6 SH |
6984 | int i, msix_rx_cnt = 0; |
6985 | ||
f61e0a35 SH |
6986 | for (i = 0; i < sp->num_entries; i++) { |
6987 | if (sp->s2io_entries[i].in_use == MSIX_FLG) { | |
6988 | if (sp->s2io_entries[i].type == | |
d44570e4 | 6989 | MSIX_RING_TYPE) { |
ac731ab6 SH |
6990 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", |
6991 | dev->name, i); | |
6992 | err = request_irq(sp->entries[i].vector, | |
d44570e4 JP |
6993 | s2io_msix_ring_handle, |
6994 | 0, | |
6995 | sp->desc[i], | |
6996 | sp->s2io_entries[i].arg); | |
ac731ab6 | 6997 | } else if (sp->s2io_entries[i].type == |
d44570e4 | 6998 | MSIX_ALARM_TYPE) { |
ac731ab6 | 6999 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", |
d44570e4 | 7000 | dev->name, i); |
ac731ab6 | 7001 | err = request_irq(sp->entries[i].vector, |
d44570e4 JP |
7002 | s2io_msix_fifo_handle, |
7003 | 0, | |
7004 | sp->desc[i], | |
7005 | sp->s2io_entries[i].arg); | |
ac731ab6 | 7006 | |
fb6a825b | 7007 | } |
ac731ab6 SH |
7008 | /* if either data or addr is zero print it. */ |
7009 | if (!(sp->msix_info[i].addr && | |
d44570e4 | 7010 | sp->msix_info[i].data)) { |
ac731ab6 | 7011 | DBG_PRINT(ERR_DBG, |
d44570e4 JP |
7012 | "%s @Addr:0x%llx Data:0x%llx\n", |
7013 | sp->desc[i], | |
7014 | (unsigned long long) | |
7015 | sp->msix_info[i].addr, | |
7016 | (unsigned long long) | |
7017 | ntohl(sp->msix_info[i].data)); | |
ac731ab6 | 7018 | } else |
fb6a825b | 7019 | msix_rx_cnt++; |
ac731ab6 SH |
7020 | if (err) { |
7021 | remove_msix_isr(sp); | |
7022 | ||
7023 | DBG_PRINT(ERR_DBG, | |
d44570e4 JP |
7024 | "%s:MSI-X-%d registration " |
7025 | "failed\n", dev->name, i); | |
ac731ab6 SH |
7026 | |
7027 | DBG_PRINT(ERR_DBG, | |
d44570e4 JP |
7028 | "%s: Defaulting to INTA\n", |
7029 | dev->name); | |
ac731ab6 SH |
7030 | sp->config.intr_type = INTA; |
7031 | break; | |
fb6a825b | 7032 | } |
ac731ab6 SH |
7033 | sp->s2io_entries[i].in_use = |
7034 | MSIX_REGISTERED_SUCCESS; | |
c92ca04b | 7035 | } |
e6a8fee2 | 7036 | } |
18b2b7bd | 7037 | if (!err) { |
6cef2b8e | 7038 | pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt); |
9e39f7c5 JP |
7039 | DBG_PRINT(INFO_DBG, |
7040 | "MSI-X-TX entries enabled through alarm vector\n"); | |
18b2b7bd | 7041 | } |
e6a8fee2 | 7042 | } |
eaae7f72 | 7043 | if (sp->config.intr_type == INTA) { |
80777c54 | 7044 | err = request_irq(sp->pdev->irq, s2io_isr, IRQF_SHARED, |
d44570e4 | 7045 | sp->name, dev); |
e6a8fee2 AR |
7046 | if (err) { |
7047 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
7048 | dev->name); | |
7049 | return -1; | |
7050 | } | |
7051 | } | |
7052 | return 0; | |
7053 | } | |
d44570e4 JP |
7054 | |
7055 | static void s2io_rem_isr(struct s2io_nic *sp) | |
e6a8fee2 | 7056 | { |
18b2b7bd SH |
7057 | if (sp->config.intr_type == MSI_X) |
7058 | remove_msix_isr(sp); | |
7059 | else | |
7060 | remove_inta_isr(sp); | |
e6a8fee2 AR |
7061 | } |
7062 | ||
d44570e4 | 7063 | static void do_s2io_card_down(struct s2io_nic *sp, int do_io) |
e6a8fee2 AR |
7064 | { |
7065 | int cnt = 0; | |
1ee6dd77 | 7066 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 | 7067 | register u64 val64 = 0; |
5f490c96 SH |
7068 | struct config_param *config; |
7069 | config = &sp->config; | |
e6a8fee2 | 7070 | |
9f74ffde SH |
7071 | if (!is_s2io_card_up(sp)) |
7072 | return; | |
7073 | ||
e6a8fee2 AR |
7074 | del_timer_sync(&sp->alarm_timer); |
7075 | /* If s2io_set_link task is executing, wait till it completes. */ | |
d44570e4 | 7076 | while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state))) |
e6a8fee2 | 7077 | msleep(50); |
92b84437 | 7078 | clear_bit(__S2IO_STATE_CARD_UP, &sp->state); |
e6a8fee2 | 7079 | |
5f490c96 | 7080 | /* Disable napi */ |
f61e0a35 SH |
7081 | if (sp->config.napi) { |
7082 | int off = 0; | |
7083 | if (config->intr_type == MSI_X) { | |
7084 | for (; off < sp->config.rx_ring_num; off++) | |
7085 | napi_disable(&sp->mac_control.rings[off].napi); | |
d44570e4 | 7086 | } |
f61e0a35 SH |
7087 | else |
7088 | napi_disable(&sp->napi); | |
7089 | } | |
5f490c96 | 7090 | |
e6a8fee2 | 7091 | /* disable Tx and Rx traffic on the NIC */ |
d796fdb7 LV |
7092 | if (do_io) |
7093 | stop_nic(sp); | |
e6a8fee2 AR |
7094 | |
7095 | s2io_rem_isr(sp); | |
1da177e4 | 7096 | |
01e16faa SH |
7097 | /* stop the tx queue, indicate link down */ |
7098 | s2io_link(sp, LINK_DOWN); | |
7099 | ||
1da177e4 | 7100 | /* Check if the device is Quiescent and then Reset the NIC */ |
d44570e4 | 7101 | while (do_io) { |
5d3213cc AR |
7102 | /* As per the HW requirement we need to replenish the |
7103 | * receive buffer to avoid the ring bump. Since there is | |
7104 | * no intention of processing the Rx frame at this pointwe are | |
70f23fd6 | 7105 | * just setting the ownership bit of rxd in Each Rx |
5d3213cc AR |
7106 | * ring to HW and set the appropriate buffer size |
7107 | * based on the ring mode | |
7108 | */ | |
7109 | rxd_owner_bit_reset(sp); | |
7110 | ||
1da177e4 | 7111 | val64 = readq(&bar0->adapter_status); |
19a60522 | 7112 | if (verify_xena_quiescence(sp)) { |
d44570e4 JP |
7113 | if (verify_pcc_quiescent(sp, sp->device_enabled_once)) |
7114 | break; | |
1da177e4 LT |
7115 | } |
7116 | ||
7117 | msleep(50); | |
7118 | cnt++; | |
7119 | if (cnt == 10) { | |
9e39f7c5 JP |
7120 | DBG_PRINT(ERR_DBG, "Device not Quiescent - " |
7121 | "adapter status reads 0x%llx\n", | |
d44570e4 | 7122 | (unsigned long long)val64); |
1da177e4 LT |
7123 | break; |
7124 | } | |
d796fdb7 LV |
7125 | } |
7126 | if (do_io) | |
7127 | s2io_reset(sp); | |
1da177e4 | 7128 | |
7ba013ac | 7129 | /* Free all Tx buffers */ |
1da177e4 | 7130 | free_tx_buffers(sp); |
7ba013ac K |
7131 | |
7132 | /* Free all Rx buffers */ | |
1da177e4 LT |
7133 | free_rx_buffers(sp); |
7134 | ||
92b84437 | 7135 | clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state)); |
1da177e4 LT |
7136 | } |
7137 | ||
d44570e4 | 7138 | static void s2io_card_down(struct s2io_nic *sp) |
d796fdb7 LV |
7139 | { |
7140 | do_s2io_card_down(sp, 1); | |
7141 | } | |
7142 | ||
d44570e4 | 7143 | static int s2io_card_up(struct s2io_nic *sp) |
1da177e4 | 7144 | { |
cc6e7c44 | 7145 | int i, ret = 0; |
1da177e4 | 7146 | struct config_param *config; |
ffb5df6c | 7147 | struct mac_info *mac_control; |
64699336 | 7148 | struct net_device *dev = sp->dev; |
e6a8fee2 | 7149 | u16 interruptible; |
1da177e4 LT |
7150 | |
7151 | /* Initialize the H/W I/O registers */ | |
9f74ffde SH |
7152 | ret = init_nic(sp); |
7153 | if (ret != 0) { | |
1da177e4 LT |
7154 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
7155 | dev->name); | |
9f74ffde SH |
7156 | if (ret != -EIO) |
7157 | s2io_reset(sp); | |
7158 | return ret; | |
1da177e4 LT |
7159 | } |
7160 | ||
20346722 K |
7161 | /* |
7162 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
7163 | * Rx ring and initializing buffers into 30 Rx blocks |
7164 | */ | |
1da177e4 | 7165 | config = &sp->config; |
ffb5df6c | 7166 | mac_control = &sp->mac_control; |
1da177e4 LT |
7167 | |
7168 | for (i = 0; i < config->rx_ring_num; i++) { | |
13d866a9 JP |
7169 | struct ring_info *ring = &mac_control->rings[i]; |
7170 | ||
7171 | ring->mtu = dev->mtu; | |
f0c54ace | 7172 | ring->lro = !!(dev->features & NETIF_F_LRO); |
13d866a9 | 7173 | ret = fill_rx_buffers(sp, ring, 1); |
0425b46a | 7174 | if (ret) { |
1da177e4 LT |
7175 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", |
7176 | dev->name); | |
7177 | s2io_reset(sp); | |
7178 | free_rx_buffers(sp); | |
7179 | return -ENOMEM; | |
7180 | } | |
7181 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
13d866a9 | 7182 | ring->rx_bufs_left); |
1da177e4 | 7183 | } |
5f490c96 SH |
7184 | |
7185 | /* Initialise napi */ | |
f61e0a35 | 7186 | if (config->napi) { |
f61e0a35 SH |
7187 | if (config->intr_type == MSI_X) { |
7188 | for (i = 0; i < sp->config.rx_ring_num; i++) | |
7189 | napi_enable(&sp->mac_control.rings[i].napi); | |
7190 | } else { | |
7191 | napi_enable(&sp->napi); | |
7192 | } | |
7193 | } | |
5f490c96 | 7194 | |
19a60522 SS |
7195 | /* Maintain the state prior to the open */ |
7196 | if (sp->promisc_flg) | |
7197 | sp->promisc_flg = 0; | |
7198 | if (sp->m_cast_flg) { | |
7199 | sp->m_cast_flg = 0; | |
d44570e4 | 7200 | sp->all_multi_pos = 0; |
19a60522 | 7201 | } |
1da177e4 LT |
7202 | |
7203 | /* Setting its receive mode */ | |
7204 | s2io_set_multicast(dev); | |
7205 | ||
f0c54ace | 7206 | if (dev->features & NETIF_F_LRO) { |
b41477f3 | 7207 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 | 7208 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
d44570e4 | 7209 | /* Check if we can use (if specified) user provided value */ |
7d3d0439 RA |
7210 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) |
7211 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
7212 | } | |
7213 | ||
1da177e4 LT |
7214 | /* Enable Rx Traffic and interrupts on the NIC */ |
7215 | if (start_nic(sp)) { | |
7216 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 7217 | s2io_reset(sp); |
e6a8fee2 AR |
7218 | free_rx_buffers(sp); |
7219 | return -ENODEV; | |
7220 | } | |
7221 | ||
7222 | /* Add interrupt service routine */ | |
7223 | if (s2io_add_isr(sp) != 0) { | |
eaae7f72 | 7224 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
7225 | s2io_rem_isr(sp); |
7226 | s2io_reset(sp); | |
1da177e4 LT |
7227 | free_rx_buffers(sp); |
7228 | return -ENODEV; | |
7229 | } | |
7230 | ||
25fff88e K |
7231 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
7232 | ||
01e16faa SH |
7233 | set_bit(__S2IO_STATE_CARD_UP, &sp->state); |
7234 | ||
e6a8fee2 | 7235 | /* Enable select interrupts */ |
9caab458 | 7236 | en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS); |
01e16faa SH |
7237 | if (sp->config.intr_type != INTA) { |
7238 | interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR; | |
7239 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
7240 | } else { | |
e6a8fee2 | 7241 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
9caab458 | 7242 | interruptible |= TX_PIC_INTR; |
e6a8fee2 AR |
7243 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); |
7244 | } | |
7245 | ||
1da177e4 LT |
7246 | return 0; |
7247 | } | |
7248 | ||
20346722 | 7249 | /** |
1da177e4 LT |
7250 | * s2io_restart_nic - Resets the NIC. |
7251 | * @data : long pointer to the device private structure | |
7252 | * Description: | |
7253 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 7254 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
7255 | * the run time of the watch dog routine which is run holding a |
7256 | * spin lock. | |
7257 | */ | |
7258 | ||
c4028958 | 7259 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 7260 | { |
1ee6dd77 | 7261 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 7262 | struct net_device *dev = sp->dev; |
1da177e4 | 7263 | |
22747d6b FR |
7264 | rtnl_lock(); |
7265 | ||
7266 | if (!netif_running(dev)) | |
7267 | goto out_unlock; | |
7268 | ||
e6a8fee2 | 7269 | s2io_card_down(sp); |
1da177e4 | 7270 | if (s2io_card_up(sp)) { |
d44570e4 | 7271 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name); |
1da177e4 | 7272 | } |
3a3d5756 | 7273 | s2io_wake_all_tx_queue(sp); |
d44570e4 | 7274 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name); |
22747d6b FR |
7275 | out_unlock: |
7276 | rtnl_unlock(); | |
1da177e4 LT |
7277 | } |
7278 | ||
20346722 K |
7279 | /** |
7280 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
7281 | * @dev : Pointer to net device structure |
7282 | * Description: | |
7283 | * This function is triggered if the Tx Queue is stopped | |
7284 | * for a pre-defined amount of time when the Interface is still up. | |
7285 | * If the Interface is jammed in such a situation, the hardware is | |
7286 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
7287 | * overcome any problem that might have been caused in the hardware. | |
7288 | * Return value: | |
7289 | * void | |
7290 | */ | |
7291 | ||
7292 | static void s2io_tx_watchdog(struct net_device *dev) | |
7293 | { | |
4cf1653a | 7294 | struct s2io_nic *sp = netdev_priv(dev); |
ffb5df6c | 7295 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
7296 | |
7297 | if (netif_carrier_ok(dev)) { | |
ffb5df6c | 7298 | swstats->watchdog_timer_cnt++; |
1da177e4 | 7299 | schedule_work(&sp->rst_timer_task); |
ffb5df6c | 7300 | swstats->soft_reset_cnt++; |
1da177e4 LT |
7301 | } |
7302 | } | |
7303 | ||
7304 | /** | |
7305 | * rx_osm_handler - To perform some OS related operations on SKB. | |
7306 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
7307 | * @skb : the socket buffer pointer. | |
7308 | * @len : length of the packet | |
7309 | * @cksum : FCS checksum of the frame. | |
7310 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 7311 | * Description: |
b41477f3 | 7312 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
7313 | * some OS related operations on the SKB before passing it to the upper |
7314 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
7315 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
7316 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
7317 | * packet error count, frees the SKB and returns error. | |
7318 | * Return value: | |
7319 | * SUCCESS on success and -1 on failure. | |
7320 | */ | |
1ee6dd77 | 7321 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 7322 | { |
1ee6dd77 | 7323 | struct s2io_nic *sp = ring_data->nic; |
64699336 | 7324 | struct net_device *dev = ring_data->dev; |
20346722 | 7325 | struct sk_buff *skb = (struct sk_buff *) |
d44570e4 | 7326 | ((unsigned long)rxdp->Host_Control); |
20346722 | 7327 | int ring_no = ring_data->ring_no; |
1da177e4 | 7328 | u16 l3_csum, l4_csum; |
863c11a9 | 7329 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
2e6a684b | 7330 | struct lro *uninitialized_var(lro); |
f9046eb3 | 7331 | u8 err_mask; |
ffb5df6c | 7332 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
da6971d8 | 7333 | |
20346722 | 7334 | skb->dev = dev; |
c92ca04b | 7335 | |
863c11a9 | 7336 | if (err) { |
bd1034f0 | 7337 | /* Check for parity error */ |
d44570e4 | 7338 | if (err & 0x1) |
ffb5df6c | 7339 | swstats->parity_err_cnt++; |
d44570e4 | 7340 | |
f9046eb3 | 7341 | err_mask = err >> 48; |
d44570e4 JP |
7342 | switch (err_mask) { |
7343 | case 1: | |
ffb5df6c | 7344 | swstats->rx_parity_err_cnt++; |
491976b2 SH |
7345 | break; |
7346 | ||
d44570e4 | 7347 | case 2: |
ffb5df6c | 7348 | swstats->rx_abort_cnt++; |
491976b2 SH |
7349 | break; |
7350 | ||
d44570e4 | 7351 | case 3: |
ffb5df6c | 7352 | swstats->rx_parity_abort_cnt++; |
491976b2 SH |
7353 | break; |
7354 | ||
d44570e4 | 7355 | case 4: |
ffb5df6c | 7356 | swstats->rx_rda_fail_cnt++; |
491976b2 SH |
7357 | break; |
7358 | ||
d44570e4 | 7359 | case 5: |
ffb5df6c | 7360 | swstats->rx_unkn_prot_cnt++; |
491976b2 SH |
7361 | break; |
7362 | ||
d44570e4 | 7363 | case 6: |
ffb5df6c | 7364 | swstats->rx_fcs_err_cnt++; |
491976b2 | 7365 | break; |
bd1034f0 | 7366 | |
d44570e4 | 7367 | case 7: |
ffb5df6c | 7368 | swstats->rx_buf_size_err_cnt++; |
491976b2 SH |
7369 | break; |
7370 | ||
d44570e4 | 7371 | case 8: |
ffb5df6c | 7372 | swstats->rx_rxd_corrupt_cnt++; |
491976b2 SH |
7373 | break; |
7374 | ||
d44570e4 | 7375 | case 15: |
ffb5df6c | 7376 | swstats->rx_unkn_err_cnt++; |
491976b2 SH |
7377 | break; |
7378 | } | |
863c11a9 | 7379 | /* |
d44570e4 JP |
7380 | * Drop the packet if bad transfer code. Exception being |
7381 | * 0x5, which could be due to unsupported IPv6 extension header. | |
7382 | * In this case, we let stack handle the packet. | |
7383 | * Note that in this case, since checksum will be incorrect, | |
7384 | * stack will validate the same. | |
7385 | */ | |
f9046eb3 OH |
7386 | if (err_mask != 0x5) { |
7387 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n", | |
d44570e4 | 7388 | dev->name, err_mask); |
dc56e634 | 7389 | dev->stats.rx_crc_errors++; |
ffb5df6c | 7390 | swstats->mem_freed |
491976b2 | 7391 | += skb->truesize; |
863c11a9 | 7392 | dev_kfree_skb(skb); |
0425b46a | 7393 | ring_data->rx_bufs_left -= 1; |
863c11a9 AR |
7394 | rxdp->Host_Control = 0; |
7395 | return 0; | |
7396 | } | |
20346722 | 7397 | } |
1da177e4 | 7398 | |
20346722 | 7399 | rxdp->Host_Control = 0; |
da6971d8 AR |
7400 | if (sp->rxd_mode == RXD_MODE_1) { |
7401 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 7402 | |
da6971d8 | 7403 | skb_put(skb, len); |
6d517a27 | 7404 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
7405 | int get_block = ring_data->rx_curr_get_info.block_index; |
7406 | int get_off = ring_data->rx_curr_get_info.offset; | |
7407 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
7408 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
7409 | unsigned char *buff = skb_push(skb, buf0_len); | |
7410 | ||
1ee6dd77 | 7411 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 | 7412 | memcpy(buff, ba->ba_0, buf0_len); |
6d517a27 | 7413 | skb_put(skb, buf2_len); |
da6971d8 | 7414 | } |
20346722 | 7415 | |
d44570e4 JP |
7416 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && |
7417 | ((!ring_data->lro) || | |
7418 | (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
b437a8cc | 7419 | (dev->features & NETIF_F_RXCSUM)) { |
20346722 | 7420 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); |
1da177e4 LT |
7421 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
7422 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 7423 | /* |
1da177e4 LT |
7424 | * NIC verifies if the Checksum of the received |
7425 | * frame is Ok or not and accordingly returns | |
7426 | * a flag in the RxD. | |
7427 | */ | |
7428 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
0425b46a | 7429 | if (ring_data->lro) { |
06f0c139 | 7430 | u32 tcp_len = 0; |
7d3d0439 RA |
7431 | u8 *tcp; |
7432 | int ret = 0; | |
7433 | ||
0425b46a | 7434 | ret = s2io_club_tcp_session(ring_data, |
d44570e4 JP |
7435 | skb->data, &tcp, |
7436 | &tcp_len, &lro, | |
7437 | rxdp, sp); | |
7d3d0439 | 7438 | switch (ret) { |
d44570e4 JP |
7439 | case 3: /* Begin anew */ |
7440 | lro->parent = skb; | |
7441 | goto aggregate; | |
7442 | case 1: /* Aggregate */ | |
7443 | lro_append_pkt(sp, lro, skb, tcp_len); | |
7444 | goto aggregate; | |
7445 | case 4: /* Flush session */ | |
7446 | lro_append_pkt(sp, lro, skb, tcp_len); | |
7447 | queue_rx_frame(lro->parent, | |
7448 | lro->vlan_tag); | |
7449 | clear_lro_session(lro); | |
ffb5df6c | 7450 | swstats->flush_max_pkts++; |
d44570e4 JP |
7451 | goto aggregate; |
7452 | case 2: /* Flush both */ | |
7453 | lro->parent->data_len = lro->frags_len; | |
ffb5df6c | 7454 | swstats->sending_both++; |
d44570e4 JP |
7455 | queue_rx_frame(lro->parent, |
7456 | lro->vlan_tag); | |
7457 | clear_lro_session(lro); | |
7458 | goto send_up; | |
7459 | case 0: /* sessions exceeded */ | |
7460 | case -1: /* non-TCP or not L2 aggregatable */ | |
7461 | case 5: /* | |
7462 | * First pkt in session not | |
7463 | * L3/L4 aggregatable | |
7464 | */ | |
7465 | break; | |
7466 | default: | |
7467 | DBG_PRINT(ERR_DBG, | |
7468 | "%s: Samadhana!!\n", | |
7469 | __func__); | |
7470 | BUG(); | |
7d3d0439 RA |
7471 | } |
7472 | } | |
1da177e4 | 7473 | } else { |
20346722 K |
7474 | /* |
7475 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
7476 | * upper layers deal with it. |
7477 | */ | |
bc8acf2c | 7478 | skb_checksum_none_assert(skb); |
1da177e4 | 7479 | } |
cdb5bf02 | 7480 | } else |
bc8acf2c | 7481 | skb_checksum_none_assert(skb); |
cdb5bf02 | 7482 | |
ffb5df6c | 7483 | swstats->mem_freed += skb->truesize; |
7d3d0439 | 7484 | send_up: |
0c8dfc83 | 7485 | skb_record_rx_queue(skb, ring_no); |
cdb5bf02 | 7486 | queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2)); |
7d3d0439 | 7487 | aggregate: |
0425b46a | 7488 | sp->mac_control.rings[ring_no].rx_bufs_left -= 1; |
1da177e4 LT |
7489 | return SUCCESS; |
7490 | } | |
7491 | ||
7492 | /** | |
7493 | * s2io_link - stops/starts the Tx queue. | |
7494 | * @sp : private member of the device structure, which is a pointer to the | |
7495 | * s2io_nic structure. | |
7496 | * @link : inidicates whether link is UP/DOWN. | |
7497 | * Description: | |
7498 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 K |
7499 | * status of the NIC is is down or up. This is called by the Alarm |
7500 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
7501 | * Return value: |
7502 | * void. | |
7503 | */ | |
7504 | ||
d44570e4 | 7505 | static void s2io_link(struct s2io_nic *sp, int link) |
1da177e4 | 7506 | { |
64699336 | 7507 | struct net_device *dev = sp->dev; |
ffb5df6c | 7508 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
7509 | |
7510 | if (link != sp->last_link_state) { | |
b7c5678f | 7511 | init_tti(sp, link); |
1da177e4 LT |
7512 | if (link == LINK_DOWN) { |
7513 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
3a3d5756 | 7514 | s2io_stop_all_tx_queue(sp); |
1da177e4 | 7515 | netif_carrier_off(dev); |
ffb5df6c JP |
7516 | if (swstats->link_up_cnt) |
7517 | swstats->link_up_time = | |
7518 | jiffies - sp->start_time; | |
7519 | swstats->link_down_cnt++; | |
1da177e4 LT |
7520 | } else { |
7521 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
ffb5df6c JP |
7522 | if (swstats->link_down_cnt) |
7523 | swstats->link_down_time = | |
d44570e4 | 7524 | jiffies - sp->start_time; |
ffb5df6c | 7525 | swstats->link_up_cnt++; |
1da177e4 | 7526 | netif_carrier_on(dev); |
3a3d5756 | 7527 | s2io_wake_all_tx_queue(sp); |
1da177e4 LT |
7528 | } |
7529 | } | |
7530 | sp->last_link_state = link; | |
491976b2 | 7531 | sp->start_time = jiffies; |
1da177e4 LT |
7532 | } |
7533 | ||
20346722 K |
7534 | /** |
7535 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
7536 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
7537 | * s2io_nic structure. |
7538 | * Description: | |
7539 | * This function initializes a few of the PCI and PCI-X configuration registers | |
7540 | * with recommended values. | |
7541 | * Return value: | |
7542 | * void | |
7543 | */ | |
7544 | ||
d44570e4 | 7545 | static void s2io_init_pci(struct s2io_nic *sp) |
1da177e4 | 7546 | { |
20346722 | 7547 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
7548 | |
7549 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
7550 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 7551 | &(pcix_cmd)); |
1da177e4 | 7552 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7553 | (pcix_cmd | 1)); |
1da177e4 | 7554 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7555 | &(pcix_cmd)); |
1da177e4 LT |
7556 | |
7557 | /* Set the PErr Response bit in PCI command register. */ | |
7558 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
7559 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
7560 | (pci_cmd | PCI_COMMAND_PARITY)); | |
7561 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
7562 | } |
7563 | ||
3a3d5756 | 7564 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type, |
d44570e4 | 7565 | u8 *dev_multiq) |
9dc737a7 | 7566 | { |
1853e2e1 JM |
7567 | int i; |
7568 | ||
d44570e4 | 7569 | if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) { |
9e39f7c5 | 7570 | DBG_PRINT(ERR_DBG, "Requested number of tx fifos " |
d44570e4 | 7571 | "(%d) not supported\n", tx_fifo_num); |
6cfc482b SH |
7572 | |
7573 | if (tx_fifo_num < 1) | |
7574 | tx_fifo_num = 1; | |
7575 | else | |
7576 | tx_fifo_num = MAX_TX_FIFOS; | |
7577 | ||
9e39f7c5 | 7578 | DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num); |
9dc737a7 | 7579 | } |
2fda096d | 7580 | |
6cfc482b | 7581 | if (multiq) |
3a3d5756 | 7582 | *dev_multiq = multiq; |
6cfc482b SH |
7583 | |
7584 | if (tx_steering_type && (1 == tx_fifo_num)) { | |
7585 | if (tx_steering_type != TX_DEFAULT_STEERING) | |
7586 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 | 7587 | "Tx steering is not supported with " |
d44570e4 | 7588 | "one fifo. Disabling Tx steering.\n"); |
6cfc482b SH |
7589 | tx_steering_type = NO_STEERING; |
7590 | } | |
7591 | ||
7592 | if ((tx_steering_type < NO_STEERING) || | |
d44570e4 JP |
7593 | (tx_steering_type > TX_DEFAULT_STEERING)) { |
7594 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 JP |
7595 | "Requested transmit steering not supported\n"); |
7596 | DBG_PRINT(ERR_DBG, "Disabling transmit steering\n"); | |
6cfc482b | 7597 | tx_steering_type = NO_STEERING; |
3a3d5756 SH |
7598 | } |
7599 | ||
0425b46a | 7600 | if (rx_ring_num > MAX_RX_RINGS) { |
d44570e4 | 7601 | DBG_PRINT(ERR_DBG, |
9e39f7c5 JP |
7602 | "Requested number of rx rings not supported\n"); |
7603 | DBG_PRINT(ERR_DBG, "Default to %d rx rings\n", | |
d44570e4 | 7604 | MAX_RX_RINGS); |
0425b46a | 7605 | rx_ring_num = MAX_RX_RINGS; |
9dc737a7 | 7606 | } |
0425b46a | 7607 | |
eccb8628 | 7608 | if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) { |
9e39f7c5 | 7609 | DBG_PRINT(ERR_DBG, "Wrong intr_type requested. " |
9dc737a7 AR |
7610 | "Defaulting to INTA\n"); |
7611 | *dev_intr_type = INTA; | |
7612 | } | |
596c5c97 | 7613 | |
9dc737a7 | 7614 | if ((*dev_intr_type == MSI_X) && |
d44570e4 JP |
7615 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && |
7616 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
9e39f7c5 | 7617 | DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. " |
d44570e4 | 7618 | "Defaulting to INTA\n"); |
9dc737a7 AR |
7619 | *dev_intr_type = INTA; |
7620 | } | |
fb6a825b | 7621 | |
6d517a27 | 7622 | if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { |
9e39f7c5 JP |
7623 | DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n"); |
7624 | DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n"); | |
6d517a27 | 7625 | rx_ring_mode = 1; |
9dc737a7 | 7626 | } |
1853e2e1 JM |
7627 | |
7628 | for (i = 0; i < MAX_RX_RINGS; i++) | |
7629 | if (rx_ring_sz[i] > MAX_RX_BLOCKS_PER_RING) { | |
7630 | DBG_PRINT(ERR_DBG, "Requested rx ring size not " | |
7631 | "supported\nDefaulting to %d\n", | |
7632 | MAX_RX_BLOCKS_PER_RING); | |
7633 | rx_ring_sz[i] = MAX_RX_BLOCKS_PER_RING; | |
7634 | } | |
7635 | ||
9dc737a7 AR |
7636 | return SUCCESS; |
7637 | } | |
7638 | ||
9fc93a41 SS |
7639 | /** |
7640 | * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS | |
7641 | * or Traffic class respectively. | |
b7c5678f | 7642 | * @nic: device private variable |
9fc93a41 SS |
7643 | * Description: The function configures the receive steering to |
7644 | * desired receive ring. | |
7645 | * Return Value: SUCCESS on success and | |
7646 | * '-1' on failure (endian settings incorrect). | |
7647 | */ | |
7648 | static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring) | |
7649 | { | |
7650 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
7651 | register u64 val64 = 0; | |
7652 | ||
7653 | if (ds_codepoint > 63) | |
7654 | return FAILURE; | |
7655 | ||
7656 | val64 = RTS_DS_MEM_DATA(ring); | |
7657 | writeq(val64, &bar0->rts_ds_mem_data); | |
7658 | ||
7659 | val64 = RTS_DS_MEM_CTRL_WE | | |
7660 | RTS_DS_MEM_CTRL_STROBE_NEW_CMD | | |
7661 | RTS_DS_MEM_CTRL_OFFSET(ds_codepoint); | |
7662 | ||
7663 | writeq(val64, &bar0->rts_ds_mem_ctrl); | |
7664 | ||
7665 | return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl, | |
d44570e4 JP |
7666 | RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED, |
7667 | S2IO_BIT_RESET); | |
9fc93a41 SS |
7668 | } |
7669 | ||
04025095 SH |
7670 | static const struct net_device_ops s2io_netdev_ops = { |
7671 | .ndo_open = s2io_open, | |
7672 | .ndo_stop = s2io_close, | |
7673 | .ndo_get_stats = s2io_get_stats, | |
7674 | .ndo_start_xmit = s2io_xmit, | |
7675 | .ndo_validate_addr = eth_validate_addr, | |
afc4b13d | 7676 | .ndo_set_rx_mode = s2io_set_multicast, |
04025095 SH |
7677 | .ndo_do_ioctl = s2io_ioctl, |
7678 | .ndo_set_mac_address = s2io_set_mac_addr, | |
7679 | .ndo_change_mtu = s2io_change_mtu, | |
b437a8cc | 7680 | .ndo_set_features = s2io_set_features, |
04025095 SH |
7681 | .ndo_tx_timeout = s2io_tx_watchdog, |
7682 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
7683 | .ndo_poll_controller = s2io_netpoll, | |
7684 | #endif | |
7685 | }; | |
7686 | ||
1da177e4 | 7687 | /** |
20346722 | 7688 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
7689 | * @pdev : structure containing the PCI related information of the device. |
7690 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
7691 | * Description: | |
7692 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 K |
7693 | * All OS related initialization including memory and device structure and |
7694 | * initlaization of the device private variable is done. Also the swapper | |
7695 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
7696 | * registers of the device. |
7697 | * Return value: | |
7698 | * returns 0 on success and negative on failure. | |
7699 | */ | |
7700 | ||
3a036ce5 | 7701 | static int |
1da177e4 LT |
7702 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) |
7703 | { | |
1ee6dd77 | 7704 | struct s2io_nic *sp; |
1da177e4 | 7705 | struct net_device *dev; |
1da177e4 | 7706 | int i, j, ret; |
f957bcf0 | 7707 | int dma_flag = false; |
1da177e4 LT |
7708 | u32 mac_up, mac_down; |
7709 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 7710 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 7711 | u16 subid; |
1da177e4 | 7712 | struct config_param *config; |
ffb5df6c | 7713 | struct mac_info *mac_control; |
541ae68f | 7714 | int mode; |
cc6e7c44 | 7715 | u8 dev_intr_type = intr_type; |
3a3d5756 | 7716 | u8 dev_multiq = 0; |
1da177e4 | 7717 | |
3a3d5756 SH |
7718 | ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq); |
7719 | if (ret) | |
9dc737a7 | 7720 | return ret; |
1da177e4 | 7721 | |
d44570e4 JP |
7722 | ret = pci_enable_device(pdev); |
7723 | if (ret) { | |
1da177e4 | 7724 | DBG_PRINT(ERR_DBG, |
9e39f7c5 | 7725 | "%s: pci_enable_device failed\n", __func__); |
1da177e4 LT |
7726 | return ret; |
7727 | } | |
7728 | ||
6a35528a | 7729 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
9e39f7c5 | 7730 | DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__); |
f957bcf0 | 7731 | dma_flag = true; |
d44570e4 | 7732 | if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { |
1da177e4 | 7733 | DBG_PRINT(ERR_DBG, |
d44570e4 JP |
7734 | "Unable to obtain 64bit DMA " |
7735 | "for consistent allocations\n"); | |
1da177e4 LT |
7736 | pci_disable_device(pdev); |
7737 | return -ENOMEM; | |
7738 | } | |
284901a9 | 7739 | } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { |
9e39f7c5 | 7740 | DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__); |
1da177e4 LT |
7741 | } else { |
7742 | pci_disable_device(pdev); | |
7743 | return -ENOMEM; | |
7744 | } | |
d44570e4 JP |
7745 | ret = pci_request_regions(pdev, s2io_driver_name); |
7746 | if (ret) { | |
9e39f7c5 | 7747 | DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n", |
d44570e4 | 7748 | __func__, ret); |
eccb8628 VP |
7749 | pci_disable_device(pdev); |
7750 | return -ENODEV; | |
1da177e4 | 7751 | } |
3a3d5756 | 7752 | if (dev_multiq) |
6cfc482b | 7753 | dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num); |
3a3d5756 | 7754 | else |
b19fa1fa | 7755 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 | 7756 | if (dev == NULL) { |
1da177e4 LT |
7757 | pci_disable_device(pdev); |
7758 | pci_release_regions(pdev); | |
7759 | return -ENODEV; | |
7760 | } | |
7761 | ||
7762 | pci_set_master(pdev); | |
7763 | pci_set_drvdata(pdev, dev); | |
1da177e4 LT |
7764 | SET_NETDEV_DEV(dev, &pdev->dev); |
7765 | ||
7766 | /* Private member variable initialized to s2io NIC structure */ | |
4cf1653a | 7767 | sp = netdev_priv(dev); |
1da177e4 LT |
7768 | sp->dev = dev; |
7769 | sp->pdev = pdev; | |
1da177e4 | 7770 | sp->high_dma_flag = dma_flag; |
f957bcf0 | 7771 | sp->device_enabled_once = false; |
da6971d8 AR |
7772 | if (rx_ring_mode == 1) |
7773 | sp->rxd_mode = RXD_MODE_1; | |
7774 | if (rx_ring_mode == 2) | |
7775 | sp->rxd_mode = RXD_MODE_3B; | |
da6971d8 | 7776 | |
eaae7f72 | 7777 | sp->config.intr_type = dev_intr_type; |
1da177e4 | 7778 | |
541ae68f | 7779 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
d44570e4 | 7780 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) |
541ae68f K |
7781 | sp->device_type = XFRAME_II_DEVICE; |
7782 | else | |
7783 | sp->device_type = XFRAME_I_DEVICE; | |
7784 | ||
6aa20a22 | 7785 | |
1da177e4 LT |
7786 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
7787 | s2io_init_pci(sp); | |
7788 | ||
20346722 | 7789 | /* |
1da177e4 | 7790 | * Setting the device configuration parameters. |
20346722 K |
7791 | * Most of these parameters can be specified by the user during |
7792 | * module insertion as they are module loadable parameters. If | |
7793 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
7794 | * are initialized with default values. |
7795 | */ | |
1da177e4 | 7796 | config = &sp->config; |
ffb5df6c | 7797 | mac_control = &sp->mac_control; |
1da177e4 | 7798 | |
596c5c97 | 7799 | config->napi = napi; |
6cfc482b | 7800 | config->tx_steering_type = tx_steering_type; |
596c5c97 | 7801 | |
1da177e4 | 7802 | /* Tx side parameters. */ |
6cfc482b SH |
7803 | if (config->tx_steering_type == TX_PRIORITY_STEERING) |
7804 | config->tx_fifo_num = MAX_TX_FIFOS; | |
7805 | else | |
7806 | config->tx_fifo_num = tx_fifo_num; | |
7807 | ||
7808 | /* Initialize the fifos used for tx steering */ | |
7809 | if (config->tx_fifo_num < 5) { | |
d44570e4 JP |
7810 | if (config->tx_fifo_num == 1) |
7811 | sp->total_tcp_fifos = 1; | |
7812 | else | |
7813 | sp->total_tcp_fifos = config->tx_fifo_num - 1; | |
7814 | sp->udp_fifo_idx = config->tx_fifo_num - 1; | |
7815 | sp->total_udp_fifos = 1; | |
7816 | sp->other_fifo_idx = sp->total_tcp_fifos - 1; | |
6cfc482b SH |
7817 | } else { |
7818 | sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM - | |
d44570e4 | 7819 | FIFO_OTHER_MAX_NUM); |
6cfc482b SH |
7820 | sp->udp_fifo_idx = sp->total_tcp_fifos; |
7821 | sp->total_udp_fifos = FIFO_UDP_MAX_NUM; | |
7822 | sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM; | |
7823 | } | |
7824 | ||
3a3d5756 | 7825 | config->multiq = dev_multiq; |
6cfc482b | 7826 | for (i = 0; i < config->tx_fifo_num; i++) { |
13d866a9 JP |
7827 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
7828 | ||
7829 | tx_cfg->fifo_len = tx_fifo_len[i]; | |
7830 | tx_cfg->fifo_priority = i; | |
1da177e4 LT |
7831 | } |
7832 | ||
20346722 K |
7833 | /* mapping the QoS priority to the configured fifos */ |
7834 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
3a3d5756 | 7835 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i]; |
20346722 | 7836 | |
6cfc482b SH |
7837 | /* map the hashing selector table to the configured fifos */ |
7838 | for (i = 0; i < config->tx_fifo_num; i++) | |
7839 | sp->fifo_selector[i] = fifo_selector[i]; | |
7840 | ||
7841 | ||
1da177e4 LT |
7842 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
7843 | for (i = 0; i < config->tx_fifo_num; i++) { | |
13d866a9 JP |
7844 | struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; |
7845 | ||
7846 | tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
7847 | if (tx_cfg->fifo_len < 65) { | |
1da177e4 LT |
7848 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; |
7849 | break; | |
7850 | } | |
7851 | } | |
fed5eccd AR |
7852 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
7853 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
7854 | |
7855 | /* Rx side parameters. */ | |
1da177e4 | 7856 | config->rx_ring_num = rx_ring_num; |
0425b46a | 7857 | for (i = 0; i < config->rx_ring_num; i++) { |
13d866a9 JP |
7858 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
7859 | struct ring_info *ring = &mac_control->rings[i]; | |
7860 | ||
7861 | rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1); | |
7862 | rx_cfg->ring_priority = i; | |
7863 | ring->rx_bufs_left = 0; | |
7864 | ring->rxd_mode = sp->rxd_mode; | |
7865 | ring->rxd_count = rxd_count[sp->rxd_mode]; | |
7866 | ring->pdev = sp->pdev; | |
7867 | ring->dev = sp->dev; | |
1da177e4 LT |
7868 | } |
7869 | ||
7870 | for (i = 0; i < rx_ring_num; i++) { | |
13d866a9 JP |
7871 | struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; |
7872 | ||
7873 | rx_cfg->ring_org = RING_ORG_BUFF1; | |
7874 | rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
1da177e4 LT |
7875 | } |
7876 | ||
7877 | /* Setting Mac Control parameters */ | |
7878 | mac_control->rmac_pause_time = rmac_pause_time; | |
7879 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
7880 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
7881 | ||
7882 | ||
1da177e4 LT |
7883 | /* initialize the shared memory used by the NIC and the host */ |
7884 | if (init_shared_mem(sp)) { | |
d44570e4 | 7885 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name); |
1da177e4 LT |
7886 | ret = -ENOMEM; |
7887 | goto mem_alloc_failed; | |
7888 | } | |
7889 | ||
275f165f | 7890 | sp->bar0 = pci_ioremap_bar(pdev, 0); |
1da177e4 | 7891 | if (!sp->bar0) { |
19a60522 | 7892 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
7893 | dev->name); |
7894 | ret = -ENOMEM; | |
7895 | goto bar0_remap_failed; | |
7896 | } | |
7897 | ||
275f165f | 7898 | sp->bar1 = pci_ioremap_bar(pdev, 2); |
1da177e4 | 7899 | if (!sp->bar1) { |
19a60522 | 7900 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
7901 | dev->name); |
7902 | ret = -ENOMEM; | |
7903 | goto bar1_remap_failed; | |
7904 | } | |
7905 | ||
1da177e4 LT |
7906 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ |
7907 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
43d620c8 | 7908 | mac_control->tx_FIFO_start[j] = sp->bar1 + (j * 0x00020000); |
1da177e4 LT |
7909 | } |
7910 | ||
7911 | /* Driver entry points */ | |
04025095 | 7912 | dev->netdev_ops = &s2io_netdev_ops; |
7ad24ea4 | 7913 | dev->ethtool_ops = &netdev_ethtool_ops; |
b437a8cc MM |
7914 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | |
7915 | NETIF_F_TSO | NETIF_F_TSO6 | | |
7916 | NETIF_F_RXCSUM | NETIF_F_LRO; | |
7917 | dev->features |= dev->hw_features | | |
f646968f | 7918 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; |
b437a8cc MM |
7919 | if (sp->device_type & XFRAME_II_DEVICE) { |
7920 | dev->hw_features |= NETIF_F_UFO; | |
7921 | if (ufo) | |
7922 | dev->features |= NETIF_F_UFO; | |
7923 | } | |
f957bcf0 | 7924 | if (sp->high_dma_flag == true) |
1da177e4 | 7925 | dev->features |= NETIF_F_HIGHDMA; |
1da177e4 | 7926 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; |
c4028958 DH |
7927 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
7928 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 7929 | |
e960fc5c | 7930 | pci_save_state(sp->pdev); |
1da177e4 LT |
7931 | |
7932 | /* Setting swapper control on the NIC, for proper reset operation */ | |
7933 | if (s2io_set_swapper(sp)) { | |
9e39f7c5 | 7934 | DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n", |
1da177e4 LT |
7935 | dev->name); |
7936 | ret = -EAGAIN; | |
7937 | goto set_swap_failed; | |
7938 | } | |
7939 | ||
541ae68f K |
7940 | /* Verify if the Herc works on the slot its placed into */ |
7941 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7942 | mode = s2io_verify_pci_mode(sp); | |
7943 | if (mode < 0) { | |
9e39f7c5 JP |
7944 | DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n", |
7945 | __func__); | |
541ae68f K |
7946 | ret = -EBADSLT; |
7947 | goto set_swap_failed; | |
7948 | } | |
7949 | } | |
7950 | ||
f61e0a35 SH |
7951 | if (sp->config.intr_type == MSI_X) { |
7952 | sp->num_entries = config->rx_ring_num + 1; | |
7953 | ret = s2io_enable_msi_x(sp); | |
7954 | ||
7955 | if (!ret) { | |
7956 | ret = s2io_test_msi(sp); | |
7957 | /* rollback MSI-X, will re-enable during add_isr() */ | |
7958 | remove_msix_isr(sp); | |
7959 | } | |
7960 | if (ret) { | |
7961 | ||
7962 | DBG_PRINT(ERR_DBG, | |
9e39f7c5 | 7963 | "MSI-X requested but failed to enable\n"); |
f61e0a35 SH |
7964 | sp->config.intr_type = INTA; |
7965 | } | |
7966 | } | |
7967 | ||
7968 | if (config->intr_type == MSI_X) { | |
13d866a9 JP |
7969 | for (i = 0; i < config->rx_ring_num ; i++) { |
7970 | struct ring_info *ring = &mac_control->rings[i]; | |
7971 | ||
7972 | netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64); | |
7973 | } | |
f61e0a35 SH |
7974 | } else { |
7975 | netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64); | |
7976 | } | |
7977 | ||
541ae68f K |
7978 | /* Not needed for Herc */ |
7979 | if (sp->device_type & XFRAME_I_DEVICE) { | |
7980 | /* | |
7981 | * Fix for all "FFs" MAC address problems observed on | |
7982 | * Alpha platforms | |
7983 | */ | |
7984 | fix_mac_address(sp); | |
7985 | s2io_reset(sp); | |
7986 | } | |
1da177e4 LT |
7987 | |
7988 | /* | |
1da177e4 LT |
7989 | * MAC address initialization. |
7990 | * For now only one mac address will be read and used. | |
7991 | */ | |
7992 | bar0 = sp->bar0; | |
7993 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
d44570e4 | 7994 | RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET); |
1da177e4 | 7995 | writeq(val64, &bar0->rmac_addr_cmd_mem); |
c92ca04b | 7996 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
d44570e4 JP |
7997 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
7998 | S2IO_BIT_RESET); | |
1da177e4 | 7999 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
d44570e4 | 8000 | mac_down = (u32)tmp64; |
1da177e4 LT |
8001 | mac_up = (u32) (tmp64 >> 32); |
8002 | ||
1da177e4 LT |
8003 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); |
8004 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
8005 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
8006 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
8007 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
8008 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
8009 | ||
1da177e4 LT |
8010 | /* Set the factory defined MAC address initially */ |
8011 | dev->addr_len = ETH_ALEN; | |
8012 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
8013 | ||
faa4f796 SH |
8014 | /* initialize number of multicast & unicast MAC entries variables */ |
8015 | if (sp->device_type == XFRAME_I_DEVICE) { | |
8016 | config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES; | |
8017 | config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES; | |
8018 | config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET; | |
8019 | } else if (sp->device_type == XFRAME_II_DEVICE) { | |
8020 | config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES; | |
8021 | config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES; | |
8022 | config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET; | |
8023 | } | |
8024 | ||
8025 | /* store mac addresses from CAM to s2io_nic structure */ | |
8026 | do_s2io_store_unicast_mc(sp); | |
8027 | ||
f61e0a35 SH |
8028 | /* Configure MSIX vector for number of rings configured plus one */ |
8029 | if ((sp->device_type == XFRAME_II_DEVICE) && | |
d44570e4 | 8030 | (config->intr_type == MSI_X)) |
f61e0a35 SH |
8031 | sp->num_entries = config->rx_ring_num + 1; |
8032 | ||
d44570e4 | 8033 | /* Store the values of the MSIX table in the s2io_nic structure */ |
c77dd43e | 8034 | store_xmsi_data(sp); |
b41477f3 AR |
8035 | /* reset Nic and bring it to known state */ |
8036 | s2io_reset(sp); | |
8037 | ||
1da177e4 | 8038 | /* |
99993af6 | 8039 | * Initialize link state flags |
541ae68f | 8040 | * and the card state parameter |
1da177e4 | 8041 | */ |
92b84437 | 8042 | sp->state = 0; |
1da177e4 | 8043 | |
1da177e4 | 8044 | /* Initialize spinlocks */ |
13d866a9 JP |
8045 | for (i = 0; i < sp->config.tx_fifo_num; i++) { |
8046 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
8047 | ||
8048 | spin_lock_init(&fifo->tx_lock); | |
8049 | } | |
db874e65 | 8050 | |
20346722 K |
8051 | /* |
8052 | * SXE-002: Configure link and activity LED to init state | |
8053 | * on driver load. | |
1da177e4 LT |
8054 | */ |
8055 | subid = sp->pdev->subsystem_device; | |
8056 | if ((subid & 0xFF) >= 0x07) { | |
8057 | val64 = readq(&bar0->gpio_control); | |
8058 | val64 |= 0x0000800000000000ULL; | |
8059 | writeq(val64, &bar0->gpio_control); | |
8060 | val64 = 0x0411040400000000ULL; | |
d44570e4 | 8061 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
8062 | val64 = readq(&bar0->gpio_control); |
8063 | } | |
8064 | ||
8065 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
8066 | ||
8067 | if (register_netdev(dev)) { | |
8068 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
8069 | ret = -ENODEV; | |
8070 | goto register_failed; | |
8071 | } | |
9dc737a7 | 8072 | s2io_vpd_read(sp); |
926bd900 | 8073 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n"); |
d44570e4 | 8074 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name, |
44c10138 | 8075 | sp->product_name, pdev->revision); |
b41477f3 AR |
8076 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, |
8077 | s2io_driver_version); | |
9e39f7c5 JP |
8078 | DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr); |
8079 | DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num); | |
9dc737a7 | 8080 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 8081 | mode = s2io_print_pci_mode(sp); |
541ae68f | 8082 | if (mode < 0) { |
541ae68f | 8083 | ret = -EBADSLT; |
9dc737a7 | 8084 | unregister_netdev(dev); |
541ae68f K |
8085 | goto set_swap_failed; |
8086 | } | |
541ae68f | 8087 | } |
d44570e4 JP |
8088 | switch (sp->rxd_mode) { |
8089 | case RXD_MODE_1: | |
8090 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
8091 | dev->name); | |
8092 | break; | |
8093 | case RXD_MODE_3B: | |
8094 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
8095 | dev->name); | |
8096 | break; | |
9dc737a7 | 8097 | } |
db874e65 | 8098 | |
f61e0a35 SH |
8099 | switch (sp->config.napi) { |
8100 | case 0: | |
8101 | DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name); | |
8102 | break; | |
8103 | case 1: | |
db874e65 | 8104 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); |
f61e0a35 SH |
8105 | break; |
8106 | } | |
3a3d5756 SH |
8107 | |
8108 | DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name, | |
d44570e4 | 8109 | sp->config.tx_fifo_num); |
3a3d5756 | 8110 | |
0425b46a SH |
8111 | DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name, |
8112 | sp->config.rx_ring_num); | |
8113 | ||
d44570e4 JP |
8114 | switch (sp->config.intr_type) { |
8115 | case INTA: | |
8116 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
8117 | break; | |
8118 | case MSI_X: | |
8119 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
8120 | break; | |
9dc737a7 | 8121 | } |
3a3d5756 | 8122 | if (sp->config.multiq) { |
13d866a9 JP |
8123 | for (i = 0; i < sp->config.tx_fifo_num; i++) { |
8124 | struct fifo_info *fifo = &mac_control->fifos[i]; | |
8125 | ||
8126 | fifo->multiq = config->multiq; | |
8127 | } | |
3a3d5756 | 8128 | DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n", |
d44570e4 | 8129 | dev->name); |
3a3d5756 SH |
8130 | } else |
8131 | DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n", | |
d44570e4 | 8132 | dev->name); |
3a3d5756 | 8133 | |
6cfc482b SH |
8134 | switch (sp->config.tx_steering_type) { |
8135 | case NO_STEERING: | |
d44570e4 JP |
8136 | DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n", |
8137 | dev->name); | |
8138 | break; | |
6cfc482b | 8139 | case TX_PRIORITY_STEERING: |
d44570e4 JP |
8140 | DBG_PRINT(ERR_DBG, |
8141 | "%s: Priority steering enabled for transmit\n", | |
8142 | dev->name); | |
6cfc482b SH |
8143 | break; |
8144 | case TX_DEFAULT_STEERING: | |
d44570e4 JP |
8145 | DBG_PRINT(ERR_DBG, |
8146 | "%s: Default steering enabled for transmit\n", | |
8147 | dev->name); | |
6cfc482b SH |
8148 | } |
8149 | ||
f0c54ace AW |
8150 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", |
8151 | dev->name); | |
db874e65 | 8152 | if (ufo) |
d44570e4 JP |
8153 | DBG_PRINT(ERR_DBG, |
8154 | "%s: UDP Fragmentation Offload(UFO) enabled\n", | |
8155 | dev->name); | |
7ba013ac | 8156 | /* Initialize device name */ |
9dc737a7 | 8157 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 8158 | |
cd0fce03 BL |
8159 | if (vlan_tag_strip) |
8160 | sp->vlan_strip_flag = 1; | |
8161 | else | |
8162 | sp->vlan_strip_flag = 0; | |
8163 | ||
20346722 K |
8164 | /* |
8165 | * Make Link state as off at this point, when the Link change | |
8166 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
8167 | * the right state. |
8168 | */ | |
8169 | netif_carrier_off(dev); | |
1da177e4 LT |
8170 | |
8171 | return 0; | |
8172 | ||
d44570e4 JP |
8173 | register_failed: |
8174 | set_swap_failed: | |
1da177e4 | 8175 | iounmap(sp->bar1); |
d44570e4 | 8176 | bar1_remap_failed: |
1da177e4 | 8177 | iounmap(sp->bar0); |
d44570e4 JP |
8178 | bar0_remap_failed: |
8179 | mem_alloc_failed: | |
1da177e4 LT |
8180 | free_shared_mem(sp); |
8181 | pci_disable_device(pdev); | |
eccb8628 | 8182 | pci_release_regions(pdev); |
1da177e4 LT |
8183 | free_netdev(dev); |
8184 | ||
8185 | return ret; | |
8186 | } | |
8187 | ||
8188 | /** | |
20346722 | 8189 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 8190 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 8191 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 8192 | * PCI device and free up all resource held up by the device. This could |
20346722 | 8193 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
8194 | * from memory. |
8195 | */ | |
8196 | ||
3a036ce5 | 8197 | static void s2io_rem_nic(struct pci_dev *pdev) |
1da177e4 | 8198 | { |
a31ff388 | 8199 | struct net_device *dev = pci_get_drvdata(pdev); |
1ee6dd77 | 8200 | struct s2io_nic *sp; |
1da177e4 LT |
8201 | |
8202 | if (dev == NULL) { | |
8203 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
8204 | return; | |
8205 | } | |
8206 | ||
4cf1653a | 8207 | sp = netdev_priv(dev); |
23f333a2 TH |
8208 | |
8209 | cancel_work_sync(&sp->rst_timer_task); | |
8210 | cancel_work_sync(&sp->set_link_task); | |
8211 | ||
1da177e4 LT |
8212 | unregister_netdev(dev); |
8213 | ||
8214 | free_shared_mem(sp); | |
8215 | iounmap(sp->bar0); | |
8216 | iounmap(sp->bar1); | |
eccb8628 | 8217 | pci_release_regions(pdev); |
1da177e4 | 8218 | free_netdev(dev); |
19a60522 | 8219 | pci_disable_device(pdev); |
1da177e4 LT |
8220 | } |
8221 | ||
8222 | /** | |
8223 | * s2io_starter - Entry point for the driver | |
8224 | * Description: This function is the entry point for the driver. It verifies | |
8225 | * the module loadable parameters and initializes PCI configuration space. | |
8226 | */ | |
8227 | ||
43b7c451 | 8228 | static int __init s2io_starter(void) |
1da177e4 | 8229 | { |
29917620 | 8230 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
8231 | } |
8232 | ||
8233 | /** | |
20346722 | 8234 | * s2io_closer - Cleanup routine for the driver |
7f2cd328 YH |
8235 | * Description: This function is the cleanup routine for the driver. It |
8236 | * unregisters the driver. | |
1da177e4 LT |
8237 | */ |
8238 | ||
372cc597 | 8239 | static __exit void s2io_closer(void) |
1da177e4 LT |
8240 | { |
8241 | pci_unregister_driver(&s2io_driver); | |
8242 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
8243 | } | |
8244 | ||
8245 | module_init(s2io_starter); | |
8246 | module_exit(s2io_closer); | |
7d3d0439 | 8247 | |
6aa20a22 | 8248 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
d44570e4 JP |
8249 | struct tcphdr **tcp, struct RxD_t *rxdp, |
8250 | struct s2io_nic *sp) | |
7d3d0439 RA |
8251 | { |
8252 | int ip_off; | |
8253 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
8254 | ||
8255 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
d44570e4 JP |
8256 | DBG_PRINT(INIT_DBG, |
8257 | "%s: Non-TCP frames not supported for LRO\n", | |
b39d66a8 | 8258 | __func__); |
7d3d0439 RA |
8259 | return -1; |
8260 | } | |
8261 | ||
cdb5bf02 | 8262 | /* Checking for DIX type or DIX type with VLAN */ |
d44570e4 | 8263 | if ((l2_type == 0) || (l2_type == 4)) { |
cdb5bf02 SH |
8264 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; |
8265 | /* | |
8266 | * If vlan stripping is disabled and the frame is VLAN tagged, | |
8267 | * shift the offset by the VLAN header size bytes. | |
8268 | */ | |
cd0fce03 | 8269 | if ((!sp->vlan_strip_flag) && |
d44570e4 | 8270 | (rxdp->Control_1 & RXD_FRAME_VLAN_TAG)) |
cdb5bf02 SH |
8271 | ip_off += HEADER_VLAN_SIZE; |
8272 | } else { | |
7d3d0439 | 8273 | /* LLC, SNAP etc are considered non-mergeable */ |
cdb5bf02 | 8274 | return -1; |
7d3d0439 RA |
8275 | } |
8276 | ||
64699336 | 8277 | *ip = (struct iphdr *)(buffer + ip_off); |
7d3d0439 RA |
8278 | ip_len = (u8)((*ip)->ihl); |
8279 | ip_len <<= 2; | |
8280 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
8281 | ||
8282 | return 0; | |
8283 | } | |
8284 | ||
1ee6dd77 | 8285 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
8286 | struct tcphdr *tcp) |
8287 | { | |
d44570e4 JP |
8288 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
8289 | if ((lro->iph->saddr != ip->saddr) || | |
8290 | (lro->iph->daddr != ip->daddr) || | |
8291 | (lro->tcph->source != tcp->source) || | |
8292 | (lro->tcph->dest != tcp->dest)) | |
7d3d0439 RA |
8293 | return -1; |
8294 | return 0; | |
8295 | } | |
8296 | ||
8297 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
8298 | { | |
d44570e4 | 8299 | return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2); |
7d3d0439 RA |
8300 | } |
8301 | ||
1ee6dd77 | 8302 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
d44570e4 JP |
8303 | struct iphdr *ip, struct tcphdr *tcp, |
8304 | u32 tcp_pyld_len, u16 vlan_tag) | |
7d3d0439 | 8305 | { |
d44570e4 | 8306 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8307 | lro->l2h = l2h; |
8308 | lro->iph = ip; | |
8309 | lro->tcph = tcp; | |
8310 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
c8855953 | 8311 | lro->tcp_ack = tcp->ack_seq; |
7d3d0439 RA |
8312 | lro->sg_num = 1; |
8313 | lro->total_len = ntohs(ip->tot_len); | |
8314 | lro->frags_len = 0; | |
cdb5bf02 | 8315 | lro->vlan_tag = vlan_tag; |
6aa20a22 | 8316 | /* |
d44570e4 JP |
8317 | * Check if we saw TCP timestamp. |
8318 | * Other consistency checks have already been done. | |
8319 | */ | |
7d3d0439 | 8320 | if (tcp->doff == 8) { |
c8855953 SR |
8321 | __be32 *ptr; |
8322 | ptr = (__be32 *)(tcp+1); | |
7d3d0439 | 8323 | lro->saw_ts = 1; |
c8855953 | 8324 | lro->cur_tsval = ntohl(*(ptr+1)); |
7d3d0439 RA |
8325 | lro->cur_tsecr = *(ptr+2); |
8326 | } | |
8327 | lro->in_use = 1; | |
8328 | } | |
8329 | ||
1ee6dd77 | 8330 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
8331 | { |
8332 | struct iphdr *ip = lro->iph; | |
8333 | struct tcphdr *tcp = lro->tcph; | |
ffb5df6c JP |
8334 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
8335 | ||
d44570e4 | 8336 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8337 | |
8338 | /* Update L3 header */ | |
9a18dd15 | 8339 | csum_replace2(&ip->check, ip->tot_len, htons(lro->total_len)); |
7d3d0439 | 8340 | ip->tot_len = htons(lro->total_len); |
7d3d0439 RA |
8341 | |
8342 | /* Update L4 header */ | |
8343 | tcp->ack_seq = lro->tcp_ack; | |
8344 | tcp->window = lro->window; | |
8345 | ||
8346 | /* Update tsecr field if this session has timestamps enabled */ | |
8347 | if (lro->saw_ts) { | |
c8855953 | 8348 | __be32 *ptr = (__be32 *)(tcp + 1); |
7d3d0439 RA |
8349 | *(ptr+2) = lro->cur_tsecr; |
8350 | } | |
8351 | ||
8352 | /* Update counters required for calculation of | |
8353 | * average no. of packets aggregated. | |
8354 | */ | |
ffb5df6c JP |
8355 | swstats->sum_avg_pkts_aggregated += lro->sg_num; |
8356 | swstats->num_aggregations++; | |
7d3d0439 RA |
8357 | } |
8358 | ||
1ee6dd77 | 8359 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
d44570e4 | 8360 | struct tcphdr *tcp, u32 l4_pyld) |
7d3d0439 | 8361 | { |
d44570e4 | 8362 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
7d3d0439 RA |
8363 | lro->total_len += l4_pyld; |
8364 | lro->frags_len += l4_pyld; | |
8365 | lro->tcp_next_seq += l4_pyld; | |
8366 | lro->sg_num++; | |
8367 | ||
8368 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
8369 | lro->tcp_ack = tcp->ack_seq; | |
8370 | lro->window = tcp->window; | |
6aa20a22 | 8371 | |
7d3d0439 | 8372 | if (lro->saw_ts) { |
c8855953 | 8373 | __be32 *ptr; |
7d3d0439 | 8374 | /* Update tsecr and tsval from this packet */ |
c8855953 SR |
8375 | ptr = (__be32 *)(tcp+1); |
8376 | lro->cur_tsval = ntohl(*(ptr+1)); | |
7d3d0439 RA |
8377 | lro->cur_tsecr = *(ptr + 2); |
8378 | } | |
8379 | } | |
8380 | ||
1ee6dd77 | 8381 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
8382 | struct tcphdr *tcp, u32 tcp_pyld_len) |
8383 | { | |
7d3d0439 RA |
8384 | u8 *ptr; |
8385 | ||
d44570e4 | 8386 | DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); |
79dc1901 | 8387 | |
7d3d0439 RA |
8388 | if (!tcp_pyld_len) { |
8389 | /* Runt frame or a pure ack */ | |
8390 | return -1; | |
8391 | } | |
8392 | ||
8393 | if (ip->ihl != 5) /* IP has options */ | |
8394 | return -1; | |
8395 | ||
75c30b13 AR |
8396 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
8397 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
8398 | return -1; | |
8399 | ||
8400 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
d44570e4 JP |
8401 | if (tcp->urg || tcp->psh || tcp->rst || |
8402 | tcp->syn || tcp->fin || | |
8403 | tcp->ece || tcp->cwr || !tcp->ack) { | |
7d3d0439 RA |
8404 | /* |
8405 | * Currently recognize only the ack control word and | |
8406 | * any other control field being set would result in | |
8407 | * flushing the LRO session | |
8408 | */ | |
8409 | return -1; | |
8410 | } | |
8411 | ||
6aa20a22 | 8412 | /* |
7d3d0439 RA |
8413 | * Allow only one TCP timestamp option. Don't aggregate if |
8414 | * any other options are detected. | |
8415 | */ | |
8416 | if (tcp->doff != 5 && tcp->doff != 8) | |
8417 | return -1; | |
8418 | ||
8419 | if (tcp->doff == 8) { | |
6aa20a22 | 8420 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
8421 | while (*ptr == TCPOPT_NOP) |
8422 | ptr++; | |
8423 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
8424 | return -1; | |
8425 | ||
8426 | /* Ensure timestamp value increases monotonically */ | |
8427 | if (l_lro) | |
c8855953 | 8428 | if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2)))) |
7d3d0439 RA |
8429 | return -1; |
8430 | ||
8431 | /* timestamp echo reply should be non-zero */ | |
c8855953 | 8432 | if (*((__be32 *)(ptr+6)) == 0) |
7d3d0439 RA |
8433 | return -1; |
8434 | } | |
8435 | ||
8436 | return 0; | |
8437 | } | |
8438 | ||
d44570e4 JP |
8439 | static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer, |
8440 | u8 **tcp, u32 *tcp_len, struct lro **lro, | |
8441 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
8442 | { |
8443 | struct iphdr *ip; | |
8444 | struct tcphdr *tcph; | |
8445 | int ret = 0, i; | |
cdb5bf02 | 8446 | u16 vlan_tag = 0; |
ffb5df6c | 8447 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
7d3d0439 | 8448 | |
d44570e4 JP |
8449 | ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, |
8450 | rxdp, sp); | |
8451 | if (ret) | |
7d3d0439 | 8452 | return ret; |
7d3d0439 | 8453 | |
d44570e4 JP |
8454 | DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr); |
8455 | ||
cdb5bf02 | 8456 | vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2); |
7d3d0439 RA |
8457 | tcph = (struct tcphdr *)*tcp; |
8458 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
d44570e4 | 8459 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 8460 | struct lro *l_lro = &ring_data->lro0_n[i]; |
7d3d0439 RA |
8461 | if (l_lro->in_use) { |
8462 | if (check_for_socket_match(l_lro, ip, tcph)) | |
8463 | continue; | |
8464 | /* Sock pair matched */ | |
8465 | *lro = l_lro; | |
8466 | ||
8467 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
9e39f7c5 JP |
8468 | DBG_PRINT(INFO_DBG, "%s: Out of sequence. " |
8469 | "expected 0x%x, actual 0x%x\n", | |
8470 | __func__, | |
7d3d0439 RA |
8471 | (*lro)->tcp_next_seq, |
8472 | ntohl(tcph->seq)); | |
8473 | ||
ffb5df6c | 8474 | swstats->outof_sequence_pkts++; |
7d3d0439 RA |
8475 | ret = 2; |
8476 | break; | |
8477 | } | |
8478 | ||
d44570e4 JP |
8479 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph, |
8480 | *tcp_len)) | |
7d3d0439 RA |
8481 | ret = 1; /* Aggregate */ |
8482 | else | |
8483 | ret = 2; /* Flush both */ | |
8484 | break; | |
8485 | } | |
8486 | } | |
8487 | ||
8488 | if (ret == 0) { | |
8489 | /* Before searching for available LRO objects, | |
8490 | * check if the pkt is L3/L4 aggregatable. If not | |
8491 | * don't create new LRO session. Just send this | |
8492 | * packet up. | |
8493 | */ | |
d44570e4 | 8494 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) |
7d3d0439 | 8495 | return 5; |
7d3d0439 | 8496 | |
d44570e4 | 8497 | for (i = 0; i < MAX_LRO_SESSIONS; i++) { |
0425b46a | 8498 | struct lro *l_lro = &ring_data->lro0_n[i]; |
7d3d0439 RA |
8499 | if (!(l_lro->in_use)) { |
8500 | *lro = l_lro; | |
8501 | ret = 3; /* Begin anew */ | |
8502 | break; | |
8503 | } | |
8504 | } | |
8505 | } | |
8506 | ||
8507 | if (ret == 0) { /* sessions exceeded */ | |
9e39f7c5 | 8508 | DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n", |
b39d66a8 | 8509 | __func__); |
7d3d0439 RA |
8510 | *lro = NULL; |
8511 | return ret; | |
8512 | } | |
8513 | ||
8514 | switch (ret) { | |
d44570e4 JP |
8515 | case 3: |
8516 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len, | |
8517 | vlan_tag); | |
8518 | break; | |
8519 | case 2: | |
8520 | update_L3L4_header(sp, *lro); | |
8521 | break; | |
8522 | case 1: | |
8523 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
8524 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7d3d0439 | 8525 | update_L3L4_header(sp, *lro); |
d44570e4 JP |
8526 | ret = 4; /* Flush the LRO */ |
8527 | } | |
8528 | break; | |
8529 | default: | |
9e39f7c5 | 8530 | DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__); |
d44570e4 | 8531 | break; |
7d3d0439 RA |
8532 | } |
8533 | ||
8534 | return ret; | |
8535 | } | |
8536 | ||
1ee6dd77 | 8537 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 8538 | { |
1ee6dd77 | 8539 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
8540 | |
8541 | memset(lro, 0, lro_struct_size); | |
8542 | } | |
8543 | ||
cdb5bf02 | 8544 | static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag) |
7d3d0439 RA |
8545 | { |
8546 | struct net_device *dev = skb->dev; | |
4cf1653a | 8547 | struct s2io_nic *sp = netdev_priv(dev); |
7d3d0439 RA |
8548 | |
8549 | skb->protocol = eth_type_trans(skb, dev); | |
b85da2c0 | 8550 | if (vlan_tag && sp->vlan_strip_flag) |
86a9bad3 | 8551 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); |
b85da2c0 JP |
8552 | if (sp->config.napi) |
8553 | netif_receive_skb(skb); | |
8554 | else | |
8555 | netif_rx(skb); | |
7d3d0439 RA |
8556 | } |
8557 | ||
1ee6dd77 | 8558 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
d44570e4 | 8559 | struct sk_buff *skb, u32 tcp_len) |
7d3d0439 | 8560 | { |
75c30b13 | 8561 | struct sk_buff *first = lro->parent; |
ffb5df6c | 8562 | struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; |
7d3d0439 RA |
8563 | |
8564 | first->len += tcp_len; | |
8565 | first->data_len = lro->frags_len; | |
8566 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
8567 | if (skb_shinfo(first)->frag_list) |
8568 | lro->last_frag->next = skb; | |
7d3d0439 RA |
8569 | else |
8570 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 8571 | first->truesize += skb->truesize; |
75c30b13 | 8572 | lro->last_frag = skb; |
ffb5df6c | 8573 | swstats->clubbed_frms_cnt++; |
7d3d0439 | 8574 | } |
d796fdb7 LV |
8575 | |
8576 | /** | |
8577 | * s2io_io_error_detected - called when PCI error is detected | |
8578 | * @pdev: Pointer to PCI device | |
8453d43f | 8579 | * @state: The current pci connection state |
d796fdb7 LV |
8580 | * |
8581 | * This function is called after a PCI bus error affecting | |
8582 | * this device has been detected. | |
8583 | */ | |
8584 | static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, | |
d44570e4 | 8585 | pci_channel_state_t state) |
d796fdb7 LV |
8586 | { |
8587 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8588 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8589 | |
8590 | netif_device_detach(netdev); | |
8591 | ||
1e3c8bd6 DN |
8592 | if (state == pci_channel_io_perm_failure) |
8593 | return PCI_ERS_RESULT_DISCONNECT; | |
8594 | ||
d796fdb7 LV |
8595 | if (netif_running(netdev)) { |
8596 | /* Bring down the card, while avoiding PCI I/O */ | |
8597 | do_s2io_card_down(sp, 0); | |
d796fdb7 LV |
8598 | } |
8599 | pci_disable_device(pdev); | |
8600 | ||
8601 | return PCI_ERS_RESULT_NEED_RESET; | |
8602 | } | |
8603 | ||
8604 | /** | |
8605 | * s2io_io_slot_reset - called after the pci bus has been reset. | |
8606 | * @pdev: Pointer to PCI device | |
8607 | * | |
8608 | * Restart the card from scratch, as if from a cold-boot. | |
8609 | * At this point, the card has exprienced a hard reset, | |
8610 | * followed by fixups by BIOS, and has its config space | |
8611 | * set up identically to what it was at cold boot. | |
8612 | */ | |
8613 | static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev) | |
8614 | { | |
8615 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8616 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8617 | |
8618 | if (pci_enable_device(pdev)) { | |
6cef2b8e | 8619 | pr_err("Cannot re-enable PCI device after reset.\n"); |
d796fdb7 LV |
8620 | return PCI_ERS_RESULT_DISCONNECT; |
8621 | } | |
8622 | ||
8623 | pci_set_master(pdev); | |
8624 | s2io_reset(sp); | |
8625 | ||
8626 | return PCI_ERS_RESULT_RECOVERED; | |
8627 | } | |
8628 | ||
8629 | /** | |
8630 | * s2io_io_resume - called when traffic can start flowing again. | |
8631 | * @pdev: Pointer to PCI device | |
8632 | * | |
8633 | * This callback is called when the error recovery driver tells | |
8634 | * us that its OK to resume normal operation. | |
8635 | */ | |
8636 | static void s2io_io_resume(struct pci_dev *pdev) | |
8637 | { | |
8638 | struct net_device *netdev = pci_get_drvdata(pdev); | |
4cf1653a | 8639 | struct s2io_nic *sp = netdev_priv(netdev); |
d796fdb7 LV |
8640 | |
8641 | if (netif_running(netdev)) { | |
8642 | if (s2io_card_up(sp)) { | |
6cef2b8e | 8643 | pr_err("Can't bring device back up after reset.\n"); |
d796fdb7 LV |
8644 | return; |
8645 | } | |
8646 | ||
8647 | if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) { | |
8648 | s2io_card_down(sp); | |
6cef2b8e | 8649 | pr_err("Can't restore mac addr after reset.\n"); |
d796fdb7 LV |
8650 | return; |
8651 | } | |
8652 | } | |
8653 | ||
8654 | netif_device_attach(netdev); | |
fd2ea0a7 | 8655 | netif_tx_wake_all_queues(netdev); |
d796fdb7 | 8656 | } |