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1da177e4 | 1 | /************************************************************************ |
776bd20f | 2 | * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC |
0c61ed5f | 3 | * Copyright(c) 2002-2007 Neterion Inc. |
1da177e4 LT |
4 | |
5 | * This software may be used and distributed according to the terms of | |
6 | * the GNU General Public License (GPL), incorporated herein by reference. | |
7 | * Drivers based on or derived from this code fall under the GPL and must | |
8 | * retain the authorship, copyright and license notice. This file is not | |
9 | * a complete program and may only be used when the entire operating | |
10 | * system is licensed under the GPL. | |
11 | * See the file COPYING in this distribution for more information. | |
12 | * | |
13 | * Credits: | |
20346722 | 14 | * Jeff Garzik : For pointing out the improper error condition |
15 | * check in the s2io_xmit routine and also some | |
16 | * issues in the Tx watch dog function. Also for | |
17 | * patiently answering all those innumerable | |
1da177e4 LT |
18 | * questions regaring the 2.6 porting issues. |
19 | * Stephen Hemminger : Providing proper 2.6 porting mechanism for some | |
20 | * macros available only in 2.6 Kernel. | |
20346722 | 21 | * Francois Romieu : For pointing out all code part that were |
1da177e4 | 22 | * deprecated and also styling related comments. |
20346722 | 23 | * Grant Grundler : For helping me get rid of some Architecture |
1da177e4 LT |
24 | * dependent code. |
25 | * Christopher Hellwig : Some more 2.6 specific issues in the driver. | |
20346722 | 26 | * |
1da177e4 LT |
27 | * The module loadable parameters that are supported by the driver and a brief |
28 | * explaination of all the variables. | |
9dc737a7 | 29 | * |
20346722 | 30 | * rx_ring_num : This can be used to program the number of receive rings used |
31 | * in the driver. | |
9dc737a7 AR |
32 | * rx_ring_sz: This defines the number of receive blocks each ring can have. |
33 | * This is also an array of size 8. | |
da6971d8 | 34 | * rx_ring_mode: This defines the operation mode of all 8 rings. The valid |
6d517a27 | 35 | * values are 1, 2. |
1da177e4 | 36 | * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver. |
20346722 | 37 | * tx_fifo_len: This too is an array of 8. Each element defines the number of |
1da177e4 | 38 | * Tx descriptors that can be associated with each corresponding FIFO. |
9dc737a7 | 39 | * intr_type: This defines the type of interrupt. The values can be 0(INTA), |
8abc4d5b | 40 | * 2(MSI_X). Default value is '2(MSI_X)' |
43b7c451 | 41 | * lro_enable: Specifies whether to enable Large Receive Offload (LRO) or not. |
9dc737a7 AR |
42 | * Possible values '1' for enable '0' for disable. Default is '0' |
43 | * lro_max_pkts: This parameter defines maximum number of packets can be | |
44 | * aggregated as a single large packet | |
926930b2 SS |
45 | * napi: This parameter used to enable/disable NAPI (polling Rx) |
46 | * Possible values '1' for enable and '0' for disable. Default is '1' | |
47 | * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO) | |
48 | * Possible values '1' for enable and '0' for disable. Default is '0' | |
49 | * vlan_tag_strip: This can be used to enable or disable vlan stripping. | |
50 | * Possible values '1' for enable , '0' for disable. | |
51 | * Default is '2' - which means disable in promisc mode | |
52 | * and enable in non-promiscuous mode. | |
1da177e4 LT |
53 | ************************************************************************/ |
54 | ||
1da177e4 LT |
55 | #include <linux/module.h> |
56 | #include <linux/types.h> | |
57 | #include <linux/errno.h> | |
58 | #include <linux/ioport.h> | |
59 | #include <linux/pci.h> | |
1e7f0bd8 | 60 | #include <linux/dma-mapping.h> |
1da177e4 LT |
61 | #include <linux/kernel.h> |
62 | #include <linux/netdevice.h> | |
63 | #include <linux/etherdevice.h> | |
64 | #include <linux/skbuff.h> | |
65 | #include <linux/init.h> | |
66 | #include <linux/delay.h> | |
67 | #include <linux/stddef.h> | |
68 | #include <linux/ioctl.h> | |
69 | #include <linux/timex.h> | |
1da177e4 | 70 | #include <linux/ethtool.h> |
1da177e4 | 71 | #include <linux/workqueue.h> |
be3a6b02 | 72 | #include <linux/if_vlan.h> |
7d3d0439 RA |
73 | #include <linux/ip.h> |
74 | #include <linux/tcp.h> | |
75 | #include <net/tcp.h> | |
1da177e4 | 76 | |
1da177e4 LT |
77 | #include <asm/system.h> |
78 | #include <asm/uaccess.h> | |
20346722 | 79 | #include <asm/io.h> |
fe931395 | 80 | #include <asm/div64.h> |
330ce0de | 81 | #include <asm/irq.h> |
1da177e4 LT |
82 | |
83 | /* local include */ | |
84 | #include "s2io.h" | |
85 | #include "s2io-regs.h" | |
86 | ||
5f490c96 | 87 | #define DRV_VERSION "2.0.26.17" |
6c1792f4 | 88 | |
1da177e4 | 89 | /* S2io Driver name & version. */ |
20346722 | 90 | static char s2io_driver_name[] = "Neterion"; |
6c1792f4 | 91 | static char s2io_driver_version[] = DRV_VERSION; |
1da177e4 | 92 | |
6d517a27 VP |
93 | static int rxd_size[2] = {32,48}; |
94 | static int rxd_count[2] = {127,85}; | |
da6971d8 | 95 | |
1ee6dd77 | 96 | static inline int RXD_IS_UP2DT(struct RxD_t *rxdp) |
5e25b9dd | 97 | { |
98 | int ret; | |
99 | ||
100 | ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) && | |
101 | (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK)); | |
102 | ||
103 | return ret; | |
104 | } | |
105 | ||
20346722 | 106 | /* |
1da177e4 LT |
107 | * Cards with following subsystem_id have a link state indication |
108 | * problem, 600B, 600C, 600D, 640B, 640C and 640D. | |
109 | * macro below identifies these cards given the subsystem_id. | |
110 | */ | |
541ae68f | 111 | #define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \ |
112 | (dev_type == XFRAME_I_DEVICE) ? \ | |
113 | ((((subid >= 0x600B) && (subid <= 0x600D)) || \ | |
114 | ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0 | |
1da177e4 LT |
115 | |
116 | #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \ | |
117 | ADAPTER_STATUS_RMAC_LOCAL_FAULT))) | |
118 | #define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status)) | |
119 | #define PANIC 1 | |
120 | #define LOW 2 | |
1ee6dd77 | 121 | static inline int rx_buffer_level(struct s2io_nic * sp, int rxb_size, int ring) |
1da177e4 | 122 | { |
1ee6dd77 | 123 | struct mac_info *mac_control; |
20346722 | 124 | |
125 | mac_control = &sp->mac_control; | |
863c11a9 AR |
126 | if (rxb_size <= rxd_count[sp->rxd_mode]) |
127 | return PANIC; | |
128 | else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16) | |
129 | return LOW; | |
130 | return 0; | |
1da177e4 LT |
131 | } |
132 | ||
92b84437 SS |
133 | static inline int is_s2io_card_up(const struct s2io_nic * sp) |
134 | { | |
135 | return test_bit(__S2IO_STATE_CARD_UP, &sp->state); | |
136 | } | |
137 | ||
1da177e4 LT |
138 | /* Ethtool related variables and Macros. */ |
139 | static char s2io_gstrings[][ETH_GSTRING_LEN] = { | |
140 | "Register test\t(offline)", | |
141 | "Eeprom test\t(offline)", | |
142 | "Link test\t(online)", | |
143 | "RLDRAM test\t(offline)", | |
144 | "BIST Test\t(offline)" | |
145 | }; | |
146 | ||
fa1f0cb3 | 147 | static char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
148 | {"tmac_frms"}, |
149 | {"tmac_data_octets"}, | |
150 | {"tmac_drop_frms"}, | |
151 | {"tmac_mcst_frms"}, | |
152 | {"tmac_bcst_frms"}, | |
153 | {"tmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
154 | {"tmac_ttl_octets"}, |
155 | {"tmac_ucst_frms"}, | |
156 | {"tmac_nucst_frms"}, | |
1da177e4 | 157 | {"tmac_any_err_frms"}, |
bd1034f0 | 158 | {"tmac_ttl_less_fb_octets"}, |
1da177e4 LT |
159 | {"tmac_vld_ip_octets"}, |
160 | {"tmac_vld_ip"}, | |
161 | {"tmac_drop_ip"}, | |
162 | {"tmac_icmp"}, | |
163 | {"tmac_rst_tcp"}, | |
164 | {"tmac_tcp"}, | |
165 | {"tmac_udp"}, | |
166 | {"rmac_vld_frms"}, | |
167 | {"rmac_data_octets"}, | |
168 | {"rmac_fcs_err_frms"}, | |
169 | {"rmac_drop_frms"}, | |
170 | {"rmac_vld_mcst_frms"}, | |
171 | {"rmac_vld_bcst_frms"}, | |
172 | {"rmac_in_rng_len_err_frms"}, | |
bd1034f0 | 173 | {"rmac_out_rng_len_err_frms"}, |
1da177e4 LT |
174 | {"rmac_long_frms"}, |
175 | {"rmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
176 | {"rmac_unsup_ctrl_frms"}, |
177 | {"rmac_ttl_octets"}, | |
178 | {"rmac_accepted_ucst_frms"}, | |
179 | {"rmac_accepted_nucst_frms"}, | |
1da177e4 | 180 | {"rmac_discarded_frms"}, |
bd1034f0 AR |
181 | {"rmac_drop_events"}, |
182 | {"rmac_ttl_less_fb_octets"}, | |
183 | {"rmac_ttl_frms"}, | |
1da177e4 LT |
184 | {"rmac_usized_frms"}, |
185 | {"rmac_osized_frms"}, | |
186 | {"rmac_frag_frms"}, | |
187 | {"rmac_jabber_frms"}, | |
bd1034f0 AR |
188 | {"rmac_ttl_64_frms"}, |
189 | {"rmac_ttl_65_127_frms"}, | |
190 | {"rmac_ttl_128_255_frms"}, | |
191 | {"rmac_ttl_256_511_frms"}, | |
192 | {"rmac_ttl_512_1023_frms"}, | |
193 | {"rmac_ttl_1024_1518_frms"}, | |
1da177e4 LT |
194 | {"rmac_ip"}, |
195 | {"rmac_ip_octets"}, | |
196 | {"rmac_hdr_err_ip"}, | |
197 | {"rmac_drop_ip"}, | |
198 | {"rmac_icmp"}, | |
199 | {"rmac_tcp"}, | |
200 | {"rmac_udp"}, | |
201 | {"rmac_err_drp_udp"}, | |
bd1034f0 AR |
202 | {"rmac_xgmii_err_sym"}, |
203 | {"rmac_frms_q0"}, | |
204 | {"rmac_frms_q1"}, | |
205 | {"rmac_frms_q2"}, | |
206 | {"rmac_frms_q3"}, | |
207 | {"rmac_frms_q4"}, | |
208 | {"rmac_frms_q5"}, | |
209 | {"rmac_frms_q6"}, | |
210 | {"rmac_frms_q7"}, | |
211 | {"rmac_full_q0"}, | |
212 | {"rmac_full_q1"}, | |
213 | {"rmac_full_q2"}, | |
214 | {"rmac_full_q3"}, | |
215 | {"rmac_full_q4"}, | |
216 | {"rmac_full_q5"}, | |
217 | {"rmac_full_q6"}, | |
218 | {"rmac_full_q7"}, | |
1da177e4 | 219 | {"rmac_pause_cnt"}, |
bd1034f0 AR |
220 | {"rmac_xgmii_data_err_cnt"}, |
221 | {"rmac_xgmii_ctrl_err_cnt"}, | |
1da177e4 LT |
222 | {"rmac_accepted_ip"}, |
223 | {"rmac_err_tcp"}, | |
bd1034f0 AR |
224 | {"rd_req_cnt"}, |
225 | {"new_rd_req_cnt"}, | |
226 | {"new_rd_req_rtry_cnt"}, | |
227 | {"rd_rtry_cnt"}, | |
228 | {"wr_rtry_rd_ack_cnt"}, | |
229 | {"wr_req_cnt"}, | |
230 | {"new_wr_req_cnt"}, | |
231 | {"new_wr_req_rtry_cnt"}, | |
232 | {"wr_rtry_cnt"}, | |
233 | {"wr_disc_cnt"}, | |
234 | {"rd_rtry_wr_ack_cnt"}, | |
235 | {"txp_wr_cnt"}, | |
236 | {"txd_rd_cnt"}, | |
237 | {"txd_wr_cnt"}, | |
238 | {"rxd_rd_cnt"}, | |
239 | {"rxd_wr_cnt"}, | |
240 | {"txf_rd_cnt"}, | |
fa1f0cb3 SS |
241 | {"rxf_wr_cnt"} |
242 | }; | |
243 | ||
244 | static char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = { | |
bd1034f0 AR |
245 | {"rmac_ttl_1519_4095_frms"}, |
246 | {"rmac_ttl_4096_8191_frms"}, | |
247 | {"rmac_ttl_8192_max_frms"}, | |
248 | {"rmac_ttl_gt_max_frms"}, | |
249 | {"rmac_osized_alt_frms"}, | |
250 | {"rmac_jabber_alt_frms"}, | |
251 | {"rmac_gt_max_alt_frms"}, | |
252 | {"rmac_vlan_frms"}, | |
253 | {"rmac_len_discard"}, | |
254 | {"rmac_fcs_discard"}, | |
255 | {"rmac_pf_discard"}, | |
256 | {"rmac_da_discard"}, | |
257 | {"rmac_red_discard"}, | |
258 | {"rmac_rts_discard"}, | |
259 | {"rmac_ingm_full_discard"}, | |
fa1f0cb3 SS |
260 | {"link_fault_cnt"} |
261 | }; | |
262 | ||
263 | static char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = { | |
7ba013ac | 264 | {"\n DRIVER STATISTICS"}, |
265 | {"single_bit_ecc_errs"}, | |
266 | {"double_bit_ecc_errs"}, | |
bd1034f0 AR |
267 | {"parity_err_cnt"}, |
268 | {"serious_err_cnt"}, | |
269 | {"soft_reset_cnt"}, | |
270 | {"fifo_full_cnt"}, | |
8116f3cf SS |
271 | {"ring_0_full_cnt"}, |
272 | {"ring_1_full_cnt"}, | |
273 | {"ring_2_full_cnt"}, | |
274 | {"ring_3_full_cnt"}, | |
275 | {"ring_4_full_cnt"}, | |
276 | {"ring_5_full_cnt"}, | |
277 | {"ring_6_full_cnt"}, | |
278 | {"ring_7_full_cnt"}, | |
43b7c451 SH |
279 | {"alarm_transceiver_temp_high"}, |
280 | {"alarm_transceiver_temp_low"}, | |
281 | {"alarm_laser_bias_current_high"}, | |
282 | {"alarm_laser_bias_current_low"}, | |
283 | {"alarm_laser_output_power_high"}, | |
284 | {"alarm_laser_output_power_low"}, | |
285 | {"warn_transceiver_temp_high"}, | |
286 | {"warn_transceiver_temp_low"}, | |
287 | {"warn_laser_bias_current_high"}, | |
288 | {"warn_laser_bias_current_low"}, | |
289 | {"warn_laser_output_power_high"}, | |
290 | {"warn_laser_output_power_low"}, | |
291 | {"lro_aggregated_pkts"}, | |
292 | {"lro_flush_both_count"}, | |
293 | {"lro_out_of_sequence_pkts"}, | |
294 | {"lro_flush_due_to_max_pkts"}, | |
295 | {"lro_avg_aggr_pkts"}, | |
296 | {"mem_alloc_fail_cnt"}, | |
297 | {"pci_map_fail_cnt"}, | |
298 | {"watchdog_timer_cnt"}, | |
299 | {"mem_allocated"}, | |
300 | {"mem_freed"}, | |
301 | {"link_up_cnt"}, | |
302 | {"link_down_cnt"}, | |
303 | {"link_up_time"}, | |
304 | {"link_down_time"}, | |
305 | {"tx_tcode_buf_abort_cnt"}, | |
306 | {"tx_tcode_desc_abort_cnt"}, | |
307 | {"tx_tcode_parity_err_cnt"}, | |
308 | {"tx_tcode_link_loss_cnt"}, | |
309 | {"tx_tcode_list_proc_err_cnt"}, | |
310 | {"rx_tcode_parity_err_cnt"}, | |
311 | {"rx_tcode_abort_cnt"}, | |
312 | {"rx_tcode_parity_abort_cnt"}, | |
313 | {"rx_tcode_rda_fail_cnt"}, | |
314 | {"rx_tcode_unkn_prot_cnt"}, | |
315 | {"rx_tcode_fcs_err_cnt"}, | |
316 | {"rx_tcode_buf_size_err_cnt"}, | |
317 | {"rx_tcode_rxd_corrupt_cnt"}, | |
318 | {"rx_tcode_unkn_err_cnt"}, | |
8116f3cf SS |
319 | {"tda_err_cnt"}, |
320 | {"pfc_err_cnt"}, | |
321 | {"pcc_err_cnt"}, | |
322 | {"tti_err_cnt"}, | |
323 | {"tpa_err_cnt"}, | |
324 | {"sm_err_cnt"}, | |
325 | {"lso_err_cnt"}, | |
326 | {"mac_tmac_err_cnt"}, | |
327 | {"mac_rmac_err_cnt"}, | |
328 | {"xgxs_txgxs_err_cnt"}, | |
329 | {"xgxs_rxgxs_err_cnt"}, | |
330 | {"rc_err_cnt"}, | |
331 | {"prc_pcix_err_cnt"}, | |
332 | {"rpa_err_cnt"}, | |
333 | {"rda_err_cnt"}, | |
334 | {"rti_err_cnt"}, | |
335 | {"mc_err_cnt"} | |
1da177e4 LT |
336 | }; |
337 | ||
fa1f0cb3 SS |
338 | #define S2IO_XENA_STAT_LEN sizeof(ethtool_xena_stats_keys)/ ETH_GSTRING_LEN |
339 | #define S2IO_ENHANCED_STAT_LEN sizeof(ethtool_enhanced_stats_keys)/ \ | |
340 | ETH_GSTRING_LEN | |
341 | #define S2IO_DRIVER_STAT_LEN sizeof(ethtool_driver_stats_keys)/ ETH_GSTRING_LEN | |
342 | ||
343 | #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN ) | |
344 | #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN ) | |
345 | ||
346 | #define XFRAME_I_STAT_STRINGS_LEN ( XFRAME_I_STAT_LEN * ETH_GSTRING_LEN ) | |
347 | #define XFRAME_II_STAT_STRINGS_LEN ( XFRAME_II_STAT_LEN * ETH_GSTRING_LEN ) | |
1da177e4 LT |
348 | |
349 | #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN | |
350 | #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN | |
351 | ||
25fff88e | 352 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
353 | init_timer(&timer); \ | |
354 | timer.function = handle; \ | |
355 | timer.data = (unsigned long) arg; \ | |
356 | mod_timer(&timer, (jiffies + exp)) \ | |
357 | ||
2fd37688 SS |
358 | /* copy mac addr to def_mac_addr array */ |
359 | static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr) | |
360 | { | |
361 | sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr); | |
362 | sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8); | |
363 | sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16); | |
364 | sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24); | |
365 | sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32); | |
366 | sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40); | |
367 | } | |
be3a6b02 | 368 | /* Add the vlan */ |
369 | static void s2io_vlan_rx_register(struct net_device *dev, | |
370 | struct vlan_group *grp) | |
371 | { | |
1ee6dd77 | 372 | struct s2io_nic *nic = dev->priv; |
be3a6b02 | 373 | unsigned long flags; |
374 | ||
375 | spin_lock_irqsave(&nic->tx_lock, flags); | |
376 | nic->vlgrp = grp; | |
377 | spin_unlock_irqrestore(&nic->tx_lock, flags); | |
378 | } | |
379 | ||
926930b2 | 380 | /* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */ |
7b490343 | 381 | static int vlan_strip_flag; |
926930b2 | 382 | |
20346722 | 383 | /* |
1da177e4 LT |
384 | * Constants to be programmed into the Xena's registers, to configure |
385 | * the XAUI. | |
386 | */ | |
387 | ||
1da177e4 | 388 | #define END_SIGN 0x0 |
f71e1309 | 389 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 390 | /* Set address */ |
e960fc5c | 391 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 392 | /* Write data */ |
e960fc5c | 393 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f | 394 | /* Set address */ |
395 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
396 | /* Write data */ | |
397 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
398 | /* Set address */ | |
e960fc5c | 399 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
400 | /* Write data */ | |
401 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
402 | /* Set address */ | |
541ae68f | 403 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
404 | /* Write data */ | |
405 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
406 | /* Done */ | |
407 | END_SIGN | |
408 | }; | |
409 | ||
f71e1309 | 410 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 411 | /* Set address */ |
1da177e4 | 412 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
413 | /* Write data */ |
414 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
415 | /* Set address */ | |
416 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
417 | /* Write data */ | |
418 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
419 | /* Set address */ | |
1da177e4 | 420 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
421 | /* Write data */ |
422 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
423 | END_SIGN |
424 | }; | |
425 | ||
20346722 | 426 | /* |
1da177e4 LT |
427 | * Constants for Fixing the MacAddress problem seen mostly on |
428 | * Alpha machines. | |
429 | */ | |
f71e1309 | 430 | static const u64 fix_mac[] = { |
1da177e4 LT |
431 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
432 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
433 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
434 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
435 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
436 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
437 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
438 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
439 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
440 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
441 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
442 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
443 | 0x0020600000000000ULL, 0x0000600000000000ULL, | |
444 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
445 | END_SIGN | |
446 | }; | |
447 | ||
b41477f3 AR |
448 | MODULE_LICENSE("GPL"); |
449 | MODULE_VERSION(DRV_VERSION); | |
450 | ||
451 | ||
1da177e4 | 452 | /* Module Loadable parameters. */ |
b41477f3 AR |
453 | S2IO_PARM_INT(tx_fifo_num, 1); |
454 | S2IO_PARM_INT(rx_ring_num, 1); | |
455 | ||
456 | ||
457 | S2IO_PARM_INT(rx_ring_mode, 1); | |
458 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
459 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
460 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
461 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
462 | S2IO_PARM_INT(shared_splits, 0); | |
463 | S2IO_PARM_INT(tmac_util_period, 5); | |
464 | S2IO_PARM_INT(rmac_util_period, 5); | |
b41477f3 | 465 | S2IO_PARM_INT(l3l4hdr_size, 128); |
303bcb4b | 466 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 467 | S2IO_PARM_INT(rxsync_frequency, 3); |
eccb8628 | 468 | /* Interrupt type. Values can be 0(INTA), 2(MSI_X) */ |
8abc4d5b | 469 | S2IO_PARM_INT(intr_type, 2); |
7d3d0439 | 470 | /* Large receive offload feature */ |
43b7c451 SH |
471 | static unsigned int lro_enable; |
472 | module_param_named(lro, lro_enable, uint, 0); | |
473 | ||
7d3d0439 RA |
474 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
475 | * aggregation happens until we hit max IP pkt size(64K) | |
476 | */ | |
b41477f3 | 477 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 478 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
479 | |
480 | S2IO_PARM_INT(napi, 1); | |
481 | S2IO_PARM_INT(ufo, 0); | |
926930b2 | 482 | S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC); |
b41477f3 AR |
483 | |
484 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
485 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; | |
486 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = | |
487 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; | |
488 | static unsigned int rts_frm_len[MAX_RX_RINGS] = | |
489 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; | |
490 | ||
491 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
492 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
493 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 494 | |
20346722 | 495 | /* |
1da177e4 | 496 | * S2IO device table. |
20346722 | 497 | * This table lists all the devices that this driver supports. |
1da177e4 LT |
498 | */ |
499 | static struct pci_device_id s2io_tbl[] __devinitdata = { | |
500 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, | |
501 | PCI_ANY_ID, PCI_ANY_ID}, | |
502 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
503 | PCI_ANY_ID, PCI_ANY_ID}, | |
504 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
20346722 | 505 | PCI_ANY_ID, PCI_ANY_ID}, |
506 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
507 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
508 | {0,} |
509 | }; | |
510 | ||
511 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
512 | ||
d796fdb7 LV |
513 | static struct pci_error_handlers s2io_err_handler = { |
514 | .error_detected = s2io_io_error_detected, | |
515 | .slot_reset = s2io_io_slot_reset, | |
516 | .resume = s2io_io_resume, | |
517 | }; | |
518 | ||
1da177e4 LT |
519 | static struct pci_driver s2io_driver = { |
520 | .name = "S2IO", | |
521 | .id_table = s2io_tbl, | |
522 | .probe = s2io_init_nic, | |
523 | .remove = __devexit_p(s2io_rem_nic), | |
d796fdb7 | 524 | .err_handler = &s2io_err_handler, |
1da177e4 LT |
525 | }; |
526 | ||
527 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
528 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
529 | ||
530 | /** | |
531 | * init_shared_mem - Allocation and Initialization of Memory | |
532 | * @nic: Device private variable. | |
20346722 | 533 | * Description: The function allocates all the memory areas shared |
534 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
535 | * Rx descriptors and the statistics block. |
536 | */ | |
537 | ||
538 | static int init_shared_mem(struct s2io_nic *nic) | |
539 | { | |
540 | u32 size; | |
541 | void *tmp_v_addr, *tmp_v_addr_next; | |
542 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 543 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 544 | int i, j, blk_cnt; |
1da177e4 LT |
545 | int lst_size, lst_per_page; |
546 | struct net_device *dev = nic->dev; | |
8ae418cf | 547 | unsigned long tmp; |
1ee6dd77 | 548 | struct buffAdd *ba; |
1da177e4 | 549 | |
1ee6dd77 | 550 | struct mac_info *mac_control; |
1da177e4 | 551 | struct config_param *config; |
491976b2 | 552 | unsigned long long mem_allocated = 0; |
1da177e4 LT |
553 | |
554 | mac_control = &nic->mac_control; | |
555 | config = &nic->config; | |
556 | ||
557 | ||
558 | /* Allocation and initialization of TXDLs in FIOFs */ | |
559 | size = 0; | |
560 | for (i = 0; i < config->tx_fifo_num; i++) { | |
561 | size += config->tx_cfg[i].fifo_len; | |
562 | } | |
563 | if (size > MAX_AVAILABLE_TXDS) { | |
b41477f3 | 564 | DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); |
0b1f7ebe | 565 | DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); |
b41477f3 | 566 | return -EINVAL; |
1da177e4 LT |
567 | } |
568 | ||
1ee6dd77 | 569 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
570 | lst_per_page = PAGE_SIZE / lst_size; |
571 | ||
572 | for (i = 0; i < config->tx_fifo_num; i++) { | |
573 | int fifo_len = config->tx_cfg[i].fifo_len; | |
1ee6dd77 | 574 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
bd684e43 | 575 | mac_control->fifos[i].list_info = kzalloc(list_holder_size, |
20346722 | 576 | GFP_KERNEL); |
577 | if (!mac_control->fifos[i].list_info) { | |
0c61ed5f | 578 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
579 | "Malloc failed for list_info\n"); |
580 | return -ENOMEM; | |
581 | } | |
491976b2 | 582 | mem_allocated += list_holder_size; |
1da177e4 LT |
583 | } |
584 | for (i = 0; i < config->tx_fifo_num; i++) { | |
585 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
586 | lst_per_page); | |
20346722 | 587 | mac_control->fifos[i].tx_curr_put_info.offset = 0; |
588 | mac_control->fifos[i].tx_curr_put_info.fifo_len = | |
1da177e4 | 589 | config->tx_cfg[i].fifo_len - 1; |
20346722 | 590 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
591 | mac_control->fifos[i].tx_curr_get_info.fifo_len = | |
1da177e4 | 592 | config->tx_cfg[i].fifo_len - 1; |
20346722 | 593 | mac_control->fifos[i].fifo_no = i; |
594 | mac_control->fifos[i].nic = nic; | |
fed5eccd | 595 | mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 2; |
20346722 | 596 | |
1da177e4 LT |
597 | for (j = 0; j < page_num; j++) { |
598 | int k = 0; | |
599 | dma_addr_t tmp_p; | |
600 | void *tmp_v; | |
601 | tmp_v = pci_alloc_consistent(nic->pdev, | |
602 | PAGE_SIZE, &tmp_p); | |
603 | if (!tmp_v) { | |
0c61ed5f | 604 | DBG_PRINT(INFO_DBG, |
1da177e4 | 605 | "pci_alloc_consistent "); |
0c61ed5f | 606 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
1da177e4 LT |
607 | return -ENOMEM; |
608 | } | |
776bd20f | 609 | /* If we got a zero DMA address(can happen on |
610 | * certain platforms like PPC), reallocate. | |
611 | * Store virtual address of page we don't want, | |
612 | * to be freed later. | |
613 | */ | |
614 | if (!tmp_p) { | |
615 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 616 | DBG_PRINT(INIT_DBG, |
776bd20f | 617 | "%s: Zero DMA address for TxDL. ", dev->name); |
6aa20a22 | 618 | DBG_PRINT(INIT_DBG, |
6b4d617d | 619 | "Virtual address %p\n", tmp_v); |
776bd20f | 620 | tmp_v = pci_alloc_consistent(nic->pdev, |
621 | PAGE_SIZE, &tmp_p); | |
622 | if (!tmp_v) { | |
0c61ed5f | 623 | DBG_PRINT(INFO_DBG, |
776bd20f | 624 | "pci_alloc_consistent "); |
0c61ed5f | 625 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
776bd20f | 626 | return -ENOMEM; |
627 | } | |
491976b2 | 628 | mem_allocated += PAGE_SIZE; |
776bd20f | 629 | } |
1da177e4 LT |
630 | while (k < lst_per_page) { |
631 | int l = (j * lst_per_page) + k; | |
632 | if (l == config->tx_cfg[i].fifo_len) | |
20346722 | 633 | break; |
634 | mac_control->fifos[i].list_info[l].list_virt_addr = | |
1da177e4 | 635 | tmp_v + (k * lst_size); |
20346722 | 636 | mac_control->fifos[i].list_info[l].list_phy_addr = |
1da177e4 LT |
637 | tmp_p + (k * lst_size); |
638 | k++; | |
639 | } | |
640 | } | |
641 | } | |
1da177e4 | 642 | |
4384247b | 643 | nic->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); |
fed5eccd AR |
644 | if (!nic->ufo_in_band_v) |
645 | return -ENOMEM; | |
491976b2 | 646 | mem_allocated += (size * sizeof(u64)); |
fed5eccd | 647 | |
1da177e4 LT |
648 | /* Allocation and initialization of RXDs in Rings */ |
649 | size = 0; | |
650 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
651 | if (config->rx_cfg[i].num_rxd % |
652 | (rxd_count[nic->rxd_mode] + 1)) { | |
1da177e4 LT |
653 | DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name); |
654 | DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ", | |
655 | i); | |
656 | DBG_PRINT(ERR_DBG, "RxDs per Block"); | |
657 | return FAILURE; | |
658 | } | |
659 | size += config->rx_cfg[i].num_rxd; | |
20346722 | 660 | mac_control->rings[i].block_count = |
da6971d8 AR |
661 | config->rx_cfg[i].num_rxd / |
662 | (rxd_count[nic->rxd_mode] + 1 ); | |
663 | mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd - | |
664 | mac_control->rings[i].block_count; | |
1da177e4 | 665 | } |
da6971d8 | 666 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 667 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 668 | else |
1ee6dd77 | 669 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
670 | |
671 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 672 | mac_control->rings[i].rx_curr_get_info.block_index = 0; |
673 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
674 | mac_control->rings[i].rx_curr_get_info.ring_len = | |
1da177e4 | 675 | config->rx_cfg[i].num_rxd - 1; |
20346722 | 676 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
677 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
678 | mac_control->rings[i].rx_curr_put_info.ring_len = | |
1da177e4 | 679 | config->rx_cfg[i].num_rxd - 1; |
20346722 | 680 | mac_control->rings[i].nic = nic; |
681 | mac_control->rings[i].ring_no = i; | |
682 | ||
da6971d8 AR |
683 | blk_cnt = config->rx_cfg[i].num_rxd / |
684 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
685 | /* Allocating all the Rx blocks */ |
686 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 687 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
688 | int l; |
689 | ||
690 | rx_blocks = &mac_control->rings[i].rx_blocks[j]; | |
691 | size = SIZE_OF_BLOCK; //size is always page size | |
1da177e4 LT |
692 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
693 | &tmp_p_addr); | |
694 | if (tmp_v_addr == NULL) { | |
695 | /* | |
20346722 | 696 | * In case of failure, free_shared_mem() |
697 | * is called, which should free any | |
698 | * memory that was alloced till the | |
1da177e4 LT |
699 | * failure happened. |
700 | */ | |
da6971d8 | 701 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
702 | return -ENOMEM; |
703 | } | |
491976b2 | 704 | mem_allocated += size; |
1da177e4 | 705 | memset(tmp_v_addr, 0, size); |
da6971d8 AR |
706 | rx_blocks->block_virt_addr = tmp_v_addr; |
707 | rx_blocks->block_dma_addr = tmp_p_addr; | |
1ee6dd77 | 708 | rx_blocks->rxds = kmalloc(sizeof(struct rxd_info)* |
da6971d8 AR |
709 | rxd_count[nic->rxd_mode], |
710 | GFP_KERNEL); | |
372cc597 SS |
711 | if (!rx_blocks->rxds) |
712 | return -ENOMEM; | |
8a4bdbaa | 713 | mem_allocated += |
491976b2 | 714 | (sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); |
da6971d8 AR |
715 | for (l=0; l<rxd_count[nic->rxd_mode];l++) { |
716 | rx_blocks->rxds[l].virt_addr = | |
717 | rx_blocks->block_virt_addr + | |
718 | (rxd_size[nic->rxd_mode] * l); | |
719 | rx_blocks->rxds[l].dma_addr = | |
720 | rx_blocks->block_dma_addr + | |
721 | (rxd_size[nic->rxd_mode] * l); | |
722 | } | |
1da177e4 LT |
723 | } |
724 | /* Interlinking all Rx Blocks */ | |
725 | for (j = 0; j < blk_cnt; j++) { | |
20346722 | 726 | tmp_v_addr = |
727 | mac_control->rings[i].rx_blocks[j].block_virt_addr; | |
1da177e4 | 728 | tmp_v_addr_next = |
20346722 | 729 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 | 730 | blk_cnt].block_virt_addr; |
20346722 | 731 | tmp_p_addr = |
732 | mac_control->rings[i].rx_blocks[j].block_dma_addr; | |
1da177e4 | 733 | tmp_p_addr_next = |
20346722 | 734 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 LT |
735 | blk_cnt].block_dma_addr; |
736 | ||
1ee6dd77 | 737 | pre_rxd_blk = (struct RxD_block *) tmp_v_addr; |
1da177e4 LT |
738 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
739 | (unsigned long) tmp_v_addr_next; | |
1da177e4 LT |
740 | pre_rxd_blk->pNext_RxD_Blk_physical = |
741 | (u64) tmp_p_addr_next; | |
742 | } | |
743 | } | |
6d517a27 | 744 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
745 | /* |
746 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
747 | * and the buffers as well. | |
748 | */ | |
749 | for (i = 0; i < config->rx_ring_num; i++) { | |
750 | blk_cnt = config->rx_cfg[i].num_rxd / | |
751 | (rxd_count[nic->rxd_mode]+ 1); | |
752 | mac_control->rings[i].ba = | |
1ee6dd77 | 753 | kmalloc((sizeof(struct buffAdd *) * blk_cnt), |
1da177e4 | 754 | GFP_KERNEL); |
da6971d8 | 755 | if (!mac_control->rings[i].ba) |
1da177e4 | 756 | return -ENOMEM; |
491976b2 | 757 | mem_allocated +=(sizeof(struct buffAdd *) * blk_cnt); |
da6971d8 AR |
758 | for (j = 0; j < blk_cnt; j++) { |
759 | int k = 0; | |
760 | mac_control->rings[i].ba[j] = | |
1ee6dd77 | 761 | kmalloc((sizeof(struct buffAdd) * |
da6971d8 AR |
762 | (rxd_count[nic->rxd_mode] + 1)), |
763 | GFP_KERNEL); | |
764 | if (!mac_control->rings[i].ba[j]) | |
1da177e4 | 765 | return -ENOMEM; |
491976b2 SH |
766 | mem_allocated += (sizeof(struct buffAdd) * \ |
767 | (rxd_count[nic->rxd_mode] + 1)); | |
da6971d8 AR |
768 | while (k != rxd_count[nic->rxd_mode]) { |
769 | ba = &mac_control->rings[i].ba[j][k]; | |
770 | ||
771 | ba->ba_0_org = (void *) kmalloc | |
772 | (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL); | |
773 | if (!ba->ba_0_org) | |
774 | return -ENOMEM; | |
8a4bdbaa | 775 | mem_allocated += |
491976b2 | 776 | (BUF0_LEN + ALIGN_SIZE); |
da6971d8 AR |
777 | tmp = (unsigned long)ba->ba_0_org; |
778 | tmp += ALIGN_SIZE; | |
779 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
780 | ba->ba_0 = (void *) tmp; | |
781 | ||
782 | ba->ba_1_org = (void *) kmalloc | |
783 | (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL); | |
784 | if (!ba->ba_1_org) | |
785 | return -ENOMEM; | |
8a4bdbaa | 786 | mem_allocated |
491976b2 | 787 | += (BUF1_LEN + ALIGN_SIZE); |
da6971d8 AR |
788 | tmp = (unsigned long) ba->ba_1_org; |
789 | tmp += ALIGN_SIZE; | |
790 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
791 | ba->ba_1 = (void *) tmp; | |
792 | k++; | |
793 | } | |
1da177e4 LT |
794 | } |
795 | } | |
796 | } | |
1da177e4 LT |
797 | |
798 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 799 | size = sizeof(struct stat_block); |
1da177e4 LT |
800 | mac_control->stats_mem = pci_alloc_consistent |
801 | (nic->pdev, size, &mac_control->stats_mem_phy); | |
802 | ||
803 | if (!mac_control->stats_mem) { | |
20346722 | 804 | /* |
805 | * In case of failure, free_shared_mem() is called, which | |
806 | * should free any memory that was alloced till the | |
1da177e4 LT |
807 | * failure happened. |
808 | */ | |
809 | return -ENOMEM; | |
810 | } | |
491976b2 | 811 | mem_allocated += size; |
1da177e4 LT |
812 | mac_control->stats_mem_sz = size; |
813 | ||
814 | tmp_v_addr = mac_control->stats_mem; | |
1ee6dd77 | 815 | mac_control->stats_info = (struct stat_block *) tmp_v_addr; |
1da177e4 | 816 | memset(tmp_v_addr, 0, size); |
1da177e4 LT |
817 | DBG_PRINT(INIT_DBG, "%s:Ring Mem PHY: 0x%llx\n", dev->name, |
818 | (unsigned long long) tmp_p_addr); | |
491976b2 | 819 | mac_control->stats_info->sw_stat.mem_allocated += mem_allocated; |
1da177e4 LT |
820 | return SUCCESS; |
821 | } | |
822 | ||
20346722 | 823 | /** |
824 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
825 | * @nic: Device private variable. |
826 | * Description: This function is to free all memory locations allocated by | |
827 | * the init_shared_mem() function and return it to the kernel. | |
828 | */ | |
829 | ||
830 | static void free_shared_mem(struct s2io_nic *nic) | |
831 | { | |
832 | int i, j, blk_cnt, size; | |
491976b2 | 833 | u32 ufo_size = 0; |
1da177e4 LT |
834 | void *tmp_v_addr; |
835 | dma_addr_t tmp_p_addr; | |
1ee6dd77 | 836 | struct mac_info *mac_control; |
1da177e4 LT |
837 | struct config_param *config; |
838 | int lst_size, lst_per_page; | |
8910b49f | 839 | struct net_device *dev; |
491976b2 | 840 | int page_num = 0; |
1da177e4 LT |
841 | |
842 | if (!nic) | |
843 | return; | |
844 | ||
8910b49f MG |
845 | dev = nic->dev; |
846 | ||
1da177e4 LT |
847 | mac_control = &nic->mac_control; |
848 | config = &nic->config; | |
849 | ||
1ee6dd77 | 850 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
851 | lst_per_page = PAGE_SIZE / lst_size; |
852 | ||
853 | for (i = 0; i < config->tx_fifo_num; i++) { | |
491976b2 SH |
854 | ufo_size += config->tx_cfg[i].fifo_len; |
855 | page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
856 | lst_per_page); | |
1da177e4 LT |
857 | for (j = 0; j < page_num; j++) { |
858 | int mem_blks = (j * lst_per_page); | |
776bd20f | 859 | if (!mac_control->fifos[i].list_info) |
6aa20a22 | 860 | return; |
776bd20f | 861 | if (!mac_control->fifos[i].list_info[mem_blks]. |
862 | list_virt_addr) | |
1da177e4 LT |
863 | break; |
864 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
20346722 | 865 | mac_control->fifos[i]. |
866 | list_info[mem_blks]. | |
1da177e4 | 867 | list_virt_addr, |
20346722 | 868 | mac_control->fifos[i]. |
869 | list_info[mem_blks]. | |
1da177e4 | 870 | list_phy_addr); |
8a4bdbaa | 871 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 872 | += PAGE_SIZE; |
1da177e4 | 873 | } |
776bd20f | 874 | /* If we got a zero DMA address during allocation, |
875 | * free the page now | |
876 | */ | |
877 | if (mac_control->zerodma_virt_addr) { | |
878 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
879 | mac_control->zerodma_virt_addr, | |
880 | (dma_addr_t)0); | |
6aa20a22 | 881 | DBG_PRINT(INIT_DBG, |
6b4d617d AM |
882 | "%s: Freeing TxDL with zero DMA addr. ", |
883 | dev->name); | |
884 | DBG_PRINT(INIT_DBG, "Virtual address %p\n", | |
885 | mac_control->zerodma_virt_addr); | |
8a4bdbaa | 886 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 887 | += PAGE_SIZE; |
776bd20f | 888 | } |
20346722 | 889 | kfree(mac_control->fifos[i].list_info); |
8a4bdbaa | 890 | nic->mac_control.stats_info->sw_stat.mem_freed += |
491976b2 | 891 | (nic->config.tx_cfg[i].fifo_len *sizeof(struct list_info_hold)); |
1da177e4 LT |
892 | } |
893 | ||
1da177e4 | 894 | size = SIZE_OF_BLOCK; |
1da177e4 | 895 | for (i = 0; i < config->rx_ring_num; i++) { |
20346722 | 896 | blk_cnt = mac_control->rings[i].block_count; |
1da177e4 | 897 | for (j = 0; j < blk_cnt; j++) { |
20346722 | 898 | tmp_v_addr = mac_control->rings[i].rx_blocks[j]. |
899 | block_virt_addr; | |
900 | tmp_p_addr = mac_control->rings[i].rx_blocks[j]. | |
901 | block_dma_addr; | |
1da177e4 LT |
902 | if (tmp_v_addr == NULL) |
903 | break; | |
904 | pci_free_consistent(nic->pdev, size, | |
905 | tmp_v_addr, tmp_p_addr); | |
491976b2 | 906 | nic->mac_control.stats_info->sw_stat.mem_freed += size; |
da6971d8 | 907 | kfree(mac_control->rings[i].rx_blocks[j].rxds); |
8a4bdbaa | 908 | nic->mac_control.stats_info->sw_stat.mem_freed += |
491976b2 | 909 | ( sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); |
1da177e4 LT |
910 | } |
911 | } | |
912 | ||
6d517a27 | 913 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
914 | /* Freeing buffer storage addresses in 2BUFF mode. */ |
915 | for (i = 0; i < config->rx_ring_num; i++) { | |
916 | blk_cnt = config->rx_cfg[i].num_rxd / | |
917 | (rxd_count[nic->rxd_mode] + 1); | |
918 | for (j = 0; j < blk_cnt; j++) { | |
919 | int k = 0; | |
920 | if (!mac_control->rings[i].ba[j]) | |
921 | continue; | |
922 | while (k != rxd_count[nic->rxd_mode]) { | |
1ee6dd77 | 923 | struct buffAdd *ba = |
da6971d8 AR |
924 | &mac_control->rings[i].ba[j][k]; |
925 | kfree(ba->ba_0_org); | |
491976b2 SH |
926 | nic->mac_control.stats_info->sw_stat.\ |
927 | mem_freed += (BUF0_LEN + ALIGN_SIZE); | |
da6971d8 | 928 | kfree(ba->ba_1_org); |
491976b2 SH |
929 | nic->mac_control.stats_info->sw_stat.\ |
930 | mem_freed += (BUF1_LEN + ALIGN_SIZE); | |
da6971d8 AR |
931 | k++; |
932 | } | |
933 | kfree(mac_control->rings[i].ba[j]); | |
9caab458 SS |
934 | nic->mac_control.stats_info->sw_stat.mem_freed += |
935 | (sizeof(struct buffAdd) * | |
936 | (rxd_count[nic->rxd_mode] + 1)); | |
1da177e4 | 937 | } |
da6971d8 | 938 | kfree(mac_control->rings[i].ba); |
8a4bdbaa | 939 | nic->mac_control.stats_info->sw_stat.mem_freed += |
491976b2 | 940 | (sizeof(struct buffAdd *) * blk_cnt); |
1da177e4 | 941 | } |
1da177e4 | 942 | } |
1da177e4 LT |
943 | |
944 | if (mac_control->stats_mem) { | |
945 | pci_free_consistent(nic->pdev, | |
946 | mac_control->stats_mem_sz, | |
947 | mac_control->stats_mem, | |
948 | mac_control->stats_mem_phy); | |
8a4bdbaa | 949 | nic->mac_control.stats_info->sw_stat.mem_freed += |
491976b2 | 950 | mac_control->stats_mem_sz; |
1da177e4 | 951 | } |
491976b2 | 952 | if (nic->ufo_in_band_v) { |
fed5eccd | 953 | kfree(nic->ufo_in_band_v); |
8a4bdbaa | 954 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 SH |
955 | += (ufo_size * sizeof(u64)); |
956 | } | |
1da177e4 LT |
957 | } |
958 | ||
541ae68f | 959 | /** |
960 | * s2io_verify_pci_mode - | |
961 | */ | |
962 | ||
1ee6dd77 | 963 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 964 | { |
1ee6dd77 | 965 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f | 966 | register u64 val64 = 0; |
967 | int mode; | |
968 | ||
969 | val64 = readq(&bar0->pci_mode); | |
970 | mode = (u8)GET_PCI_MODE(val64); | |
971 | ||
972 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
973 | return -1; /* Unknown PCI mode */ | |
974 | return mode; | |
975 | } | |
976 | ||
c92ca04b AR |
977 | #define NEC_VENID 0x1033 |
978 | #define NEC_DEVID 0x0125 | |
979 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
980 | { | |
981 | struct pci_dev *tdev = NULL; | |
26d36b64 AC |
982 | while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { |
983 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { | |
c92ca04b | 984 | if (tdev->bus == s2io_pdev->bus->parent) |
26d36b64 | 985 | pci_dev_put(tdev); |
c92ca04b AR |
986 | return 1; |
987 | } | |
988 | } | |
989 | return 0; | |
990 | } | |
541ae68f | 991 | |
7b32a312 | 992 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f | 993 | /** |
994 | * s2io_print_pci_mode - | |
995 | */ | |
1ee6dd77 | 996 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 997 | { |
1ee6dd77 | 998 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f | 999 | register u64 val64 = 0; |
1000 | int mode; | |
1001 | struct config_param *config = &nic->config; | |
1002 | ||
1003 | val64 = readq(&bar0->pci_mode); | |
1004 | mode = (u8)GET_PCI_MODE(val64); | |
1005 | ||
1006 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
1007 | return -1; /* Unknown PCI mode */ | |
1008 | ||
c92ca04b AR |
1009 | config->bus_speed = bus_speed[mode]; |
1010 | ||
1011 | if (s2io_on_nec_bridge(nic->pdev)) { | |
1012 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
1013 | nic->dev->name); | |
1014 | return mode; | |
1015 | } | |
1016 | ||
541ae68f | 1017 | if (val64 & PCI_MODE_32_BITS) { |
1018 | DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name); | |
1019 | } else { | |
1020 | DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name); | |
1021 | } | |
1022 | ||
1023 | switch(mode) { | |
1024 | case PCI_MODE_PCI_33: | |
1025 | DBG_PRINT(ERR_DBG, "33MHz PCI bus\n"); | |
541ae68f | 1026 | break; |
1027 | case PCI_MODE_PCI_66: | |
1028 | DBG_PRINT(ERR_DBG, "66MHz PCI bus\n"); | |
541ae68f | 1029 | break; |
1030 | case PCI_MODE_PCIX_M1_66: | |
1031 | DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n"); | |
541ae68f | 1032 | break; |
1033 | case PCI_MODE_PCIX_M1_100: | |
1034 | DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n"); | |
541ae68f | 1035 | break; |
1036 | case PCI_MODE_PCIX_M1_133: | |
1037 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n"); | |
541ae68f | 1038 | break; |
1039 | case PCI_MODE_PCIX_M2_66: | |
1040 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n"); | |
541ae68f | 1041 | break; |
1042 | case PCI_MODE_PCIX_M2_100: | |
1043 | DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n"); | |
541ae68f | 1044 | break; |
1045 | case PCI_MODE_PCIX_M2_133: | |
1046 | DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n"); | |
541ae68f | 1047 | break; |
1048 | default: | |
1049 | return -1; /* Unsupported bus speed */ | |
1050 | } | |
1051 | ||
1052 | return mode; | |
1053 | } | |
1054 | ||
20346722 | 1055 | /** |
1056 | * init_nic - Initialization of hardware | |
1da177e4 | 1057 | * @nic: device peivate variable |
20346722 | 1058 | * Description: The function sequentially configures every block |
1059 | * of the H/W from their reset values. | |
1060 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
1061 | * '-1' on failure (endian settings incorrect). |
1062 | */ | |
1063 | ||
1064 | static int init_nic(struct s2io_nic *nic) | |
1065 | { | |
1ee6dd77 | 1066 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1067 | struct net_device *dev = nic->dev; |
1068 | register u64 val64 = 0; | |
1069 | void __iomem *add; | |
1070 | u32 time; | |
1071 | int i, j; | |
1ee6dd77 | 1072 | struct mac_info *mac_control; |
1da177e4 | 1073 | struct config_param *config; |
c92ca04b | 1074 | int dtx_cnt = 0; |
1da177e4 | 1075 | unsigned long long mem_share; |
20346722 | 1076 | int mem_size; |
1da177e4 LT |
1077 | |
1078 | mac_control = &nic->mac_control; | |
1079 | config = &nic->config; | |
1080 | ||
5e25b9dd | 1081 | /* to set the swapper controle on the card */ |
20346722 | 1082 | if(s2io_set_swapper(nic)) { |
1da177e4 | 1083 | DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); |
9f74ffde | 1084 | return -EIO; |
1da177e4 LT |
1085 | } |
1086 | ||
541ae68f | 1087 | /* |
1088 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
1089 | */ | |
1090 | if (nic->device_type & XFRAME_II_DEVICE) { | |
1091 | val64 = 0xA500000000ULL; | |
1092 | writeq(val64, &bar0->sw_reset); | |
1093 | msleep(500); | |
1094 | val64 = readq(&bar0->sw_reset); | |
1095 | } | |
1096 | ||
1da177e4 LT |
1097 | /* Remove XGXS from reset state */ |
1098 | val64 = 0; | |
1099 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 1100 | msleep(500); |
20346722 | 1101 | val64 = readq(&bar0->sw_reset); |
1da177e4 | 1102 | |
7962024e SH |
1103 | /* Ensure that it's safe to access registers by checking |
1104 | * RIC_RUNNING bit is reset. Check is valid only for XframeII. | |
1105 | */ | |
1106 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1107 | for (i = 0; i < 50; i++) { | |
1108 | val64 = readq(&bar0->adapter_status); | |
1109 | if (!(val64 & ADAPTER_STATUS_RIC_RUNNING)) | |
1110 | break; | |
1111 | msleep(10); | |
1112 | } | |
1113 | if (i == 50) | |
1114 | return -ENODEV; | |
1115 | } | |
1116 | ||
1da177e4 LT |
1117 | /* Enable Receiving broadcasts */ |
1118 | add = &bar0->mac_cfg; | |
1119 | val64 = readq(&bar0->mac_cfg); | |
1120 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
1121 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1122 | writel((u32) val64, add); | |
1123 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1124 | writel((u32) (val64 >> 32), (add + 4)); | |
1125 | ||
1126 | /* Read registers in all blocks */ | |
1127 | val64 = readq(&bar0->mac_int_mask); | |
1128 | val64 = readq(&bar0->mc_int_mask); | |
1129 | val64 = readq(&bar0->xgxs_int_mask); | |
1130 | ||
1131 | /* Set MTU */ | |
1132 | val64 = dev->mtu; | |
1133 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
1134 | ||
541ae68f | 1135 | if (nic->device_type & XFRAME_II_DEVICE) { |
1136 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 1137 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 1138 | &bar0->dtx_control, UF); |
541ae68f | 1139 | if (dtx_cnt & 0x1) |
1140 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1141 | dtx_cnt++; |
1142 | } | |
541ae68f | 1143 | } else { |
c92ca04b AR |
1144 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1145 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1146 | &bar0->dtx_control, UF); | |
1147 | val64 = readq(&bar0->dtx_control); | |
1148 | dtx_cnt++; | |
1da177e4 LT |
1149 | } |
1150 | } | |
1151 | ||
1152 | /* Tx DMA Initialization */ | |
1153 | val64 = 0; | |
1154 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1155 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1156 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1157 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1158 | ||
1159 | ||
1160 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { | |
1161 | val64 |= | |
1162 | vBIT(config->tx_cfg[i].fifo_len - 1, ((i * 32) + 19), | |
1163 | 13) | vBIT(config->tx_cfg[i].fifo_priority, | |
1164 | ((i * 32) + 5), 3); | |
1165 | ||
1166 | if (i == (config->tx_fifo_num - 1)) { | |
1167 | if (i % 2 == 0) | |
1168 | i++; | |
1169 | } | |
1170 | ||
1171 | switch (i) { | |
1172 | case 1: | |
1173 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1174 | val64 = 0; | |
1175 | break; | |
1176 | case 3: | |
1177 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1178 | val64 = 0; | |
1179 | break; | |
1180 | case 5: | |
1181 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1182 | val64 = 0; | |
1183 | break; | |
1184 | case 7: | |
1185 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1186 | break; | |
1187 | } | |
1188 | } | |
1189 | ||
5e25b9dd | 1190 | /* |
1191 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1192 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1193 | */ | |
541ae68f | 1194 | if ((nic->device_type == XFRAME_I_DEVICE) && |
44c10138 | 1195 | (nic->pdev->revision < 4)) |
5e25b9dd | 1196 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1197 | ||
1da177e4 LT |
1198 | val64 = readq(&bar0->tx_fifo_partition_0); |
1199 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
1200 | &bar0->tx_fifo_partition_0, (unsigned long long) val64); | |
1201 | ||
20346722 | 1202 | /* |
1203 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1204 | * integrity checking. |
1205 | */ | |
1206 | val64 = readq(&bar0->tx_pa_cfg); | |
1207 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1208 | TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR; | |
1209 | writeq(val64, &bar0->tx_pa_cfg); | |
1210 | ||
1211 | /* Rx DMA intialization. */ | |
1212 | val64 = 0; | |
1213 | for (i = 0; i < config->rx_ring_num; i++) { | |
1214 | val64 |= | |
1215 | vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)), | |
1216 | 3); | |
1217 | } | |
1218 | writeq(val64, &bar0->rx_queue_priority); | |
1219 | ||
20346722 | 1220 | /* |
1221 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1222 | * configured Rings. |
1223 | */ | |
1224 | val64 = 0; | |
541ae68f | 1225 | if (nic->device_type & XFRAME_II_DEVICE) |
1226 | mem_size = 32; | |
1227 | else | |
1228 | mem_size = 64; | |
1229 | ||
1da177e4 LT |
1230 | for (i = 0; i < config->rx_ring_num; i++) { |
1231 | switch (i) { | |
1232 | case 0: | |
20346722 | 1233 | mem_share = (mem_size / config->rx_ring_num + |
1234 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1235 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1236 | continue; | |
1237 | case 1: | |
20346722 | 1238 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1239 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1240 | continue; | |
1241 | case 2: | |
20346722 | 1242 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1243 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1244 | continue; | |
1245 | case 3: | |
20346722 | 1246 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1247 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1248 | continue; | |
1249 | case 4: | |
20346722 | 1250 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1251 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1252 | continue; | |
1253 | case 5: | |
20346722 | 1254 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1255 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1256 | continue; | |
1257 | case 6: | |
20346722 | 1258 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1259 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1260 | continue; | |
1261 | case 7: | |
20346722 | 1262 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1263 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1264 | continue; | |
1265 | } | |
1266 | } | |
1267 | writeq(val64, &bar0->rx_queue_cfg); | |
1268 | ||
20346722 | 1269 | /* |
5e25b9dd | 1270 | * Filling Tx round robin registers |
1271 | * as per the number of FIFOs | |
1da177e4 | 1272 | */ |
5e25b9dd | 1273 | switch (config->tx_fifo_num) { |
1274 | case 1: | |
1275 | val64 = 0x0000000000000000ULL; | |
1276 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1277 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1278 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1279 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1280 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1281 | break; | |
1282 | case 2: | |
1283 | val64 = 0x0000010000010000ULL; | |
1284 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1285 | val64 = 0x0100000100000100ULL; | |
1286 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1287 | val64 = 0x0001000001000001ULL; | |
1288 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1289 | val64 = 0x0000010000010000ULL; | |
1290 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1291 | val64 = 0x0100000000000000ULL; | |
1292 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1293 | break; | |
1294 | case 3: | |
1295 | val64 = 0x0001000102000001ULL; | |
1296 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1297 | val64 = 0x0001020000010001ULL; | |
1298 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1299 | val64 = 0x0200000100010200ULL; | |
1300 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1301 | val64 = 0x0001000102000001ULL; | |
1302 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1303 | val64 = 0x0001020000000000ULL; | |
1304 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1305 | break; | |
1306 | case 4: | |
1307 | val64 = 0x0001020300010200ULL; | |
1308 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1309 | val64 = 0x0100000102030001ULL; | |
1310 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1311 | val64 = 0x0200010000010203ULL; | |
1312 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1313 | val64 = 0x0001020001000001ULL; | |
1314 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1315 | val64 = 0x0203000100000000ULL; | |
1316 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1317 | break; | |
1318 | case 5: | |
1319 | val64 = 0x0001000203000102ULL; | |
1320 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1321 | val64 = 0x0001020001030004ULL; | |
1322 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1323 | val64 = 0x0001000203000102ULL; | |
1324 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1325 | val64 = 0x0001020001030004ULL; | |
1326 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1327 | val64 = 0x0001000000000000ULL; | |
1328 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1329 | break; | |
1330 | case 6: | |
1331 | val64 = 0x0001020304000102ULL; | |
1332 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1333 | val64 = 0x0304050001020001ULL; | |
1334 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1335 | val64 = 0x0203000100000102ULL; | |
1336 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1337 | val64 = 0x0304000102030405ULL; | |
1338 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1339 | val64 = 0x0001000200000000ULL; | |
1340 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1341 | break; | |
1342 | case 7: | |
1343 | val64 = 0x0001020001020300ULL; | |
1344 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1345 | val64 = 0x0102030400010203ULL; | |
1346 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1347 | val64 = 0x0405060001020001ULL; | |
1348 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1349 | val64 = 0x0304050000010200ULL; | |
1350 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1351 | val64 = 0x0102030000000000ULL; | |
1352 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1353 | break; | |
1354 | case 8: | |
1355 | val64 = 0x0001020300040105ULL; | |
1356 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1357 | val64 = 0x0200030106000204ULL; | |
1358 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1359 | val64 = 0x0103000502010007ULL; | |
1360 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1361 | val64 = 0x0304010002060500ULL; | |
1362 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1363 | val64 = 0x0103020400000000ULL; | |
1364 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1365 | break; | |
1366 | } | |
1367 | ||
b41477f3 | 1368 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1369 | val64 = readq(&bar0->tx_fifo_partition_0); |
1370 | val64 |= (TX_FIFO_PARTITION_EN); | |
1371 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1372 | ||
5e25b9dd | 1373 | /* Filling the Rx round robin registers as per the |
1374 | * number of Rings and steering based on QoS. | |
1375 | */ | |
1376 | switch (config->rx_ring_num) { | |
1377 | case 1: | |
1378 | val64 = 0x8080808080808080ULL; | |
1379 | writeq(val64, &bar0->rts_qos_steering); | |
1380 | break; | |
1381 | case 2: | |
1382 | val64 = 0x0000010000010000ULL; | |
1383 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1384 | val64 = 0x0100000100000100ULL; | |
1385 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1386 | val64 = 0x0001000001000001ULL; | |
1387 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1388 | val64 = 0x0000010000010000ULL; | |
1389 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1390 | val64 = 0x0100000000000000ULL; | |
1391 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1392 | ||
1393 | val64 = 0x8080808040404040ULL; | |
1394 | writeq(val64, &bar0->rts_qos_steering); | |
1395 | break; | |
1396 | case 3: | |
1397 | val64 = 0x0001000102000001ULL; | |
1398 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1399 | val64 = 0x0001020000010001ULL; | |
1400 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1401 | val64 = 0x0200000100010200ULL; | |
1402 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1403 | val64 = 0x0001000102000001ULL; | |
1404 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1405 | val64 = 0x0001020000000000ULL; | |
1406 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1407 | ||
1408 | val64 = 0x8080804040402020ULL; | |
1409 | writeq(val64, &bar0->rts_qos_steering); | |
1410 | break; | |
1411 | case 4: | |
1412 | val64 = 0x0001020300010200ULL; | |
1413 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1414 | val64 = 0x0100000102030001ULL; | |
1415 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1416 | val64 = 0x0200010000010203ULL; | |
1417 | writeq(val64, &bar0->rx_w_round_robin_2); | |
6aa20a22 | 1418 | val64 = 0x0001020001000001ULL; |
5e25b9dd | 1419 | writeq(val64, &bar0->rx_w_round_robin_3); |
1420 | val64 = 0x0203000100000000ULL; | |
1421 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1422 | ||
1423 | val64 = 0x8080404020201010ULL; | |
1424 | writeq(val64, &bar0->rts_qos_steering); | |
1425 | break; | |
1426 | case 5: | |
1427 | val64 = 0x0001000203000102ULL; | |
1428 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1429 | val64 = 0x0001020001030004ULL; | |
1430 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1431 | val64 = 0x0001000203000102ULL; | |
1432 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1433 | val64 = 0x0001020001030004ULL; | |
1434 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1435 | val64 = 0x0001000000000000ULL; | |
1436 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1437 | ||
1438 | val64 = 0x8080404020201008ULL; | |
1439 | writeq(val64, &bar0->rts_qos_steering); | |
1440 | break; | |
1441 | case 6: | |
1442 | val64 = 0x0001020304000102ULL; | |
1443 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1444 | val64 = 0x0304050001020001ULL; | |
1445 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1446 | val64 = 0x0203000100000102ULL; | |
1447 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1448 | val64 = 0x0304000102030405ULL; | |
1449 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1450 | val64 = 0x0001000200000000ULL; | |
1451 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1452 | ||
1453 | val64 = 0x8080404020100804ULL; | |
1454 | writeq(val64, &bar0->rts_qos_steering); | |
1455 | break; | |
1456 | case 7: | |
1457 | val64 = 0x0001020001020300ULL; | |
1458 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1459 | val64 = 0x0102030400010203ULL; | |
1460 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1461 | val64 = 0x0405060001020001ULL; | |
1462 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1463 | val64 = 0x0304050000010200ULL; | |
1464 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1465 | val64 = 0x0102030000000000ULL; | |
1466 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1467 | ||
1468 | val64 = 0x8080402010080402ULL; | |
1469 | writeq(val64, &bar0->rts_qos_steering); | |
1470 | break; | |
1471 | case 8: | |
1472 | val64 = 0x0001020300040105ULL; | |
1473 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1474 | val64 = 0x0200030106000204ULL; | |
1475 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1476 | val64 = 0x0103000502010007ULL; | |
1477 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1478 | val64 = 0x0304010002060500ULL; | |
1479 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1480 | val64 = 0x0103020400000000ULL; | |
1481 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1482 | ||
1483 | val64 = 0x8040201008040201ULL; | |
1484 | writeq(val64, &bar0->rts_qos_steering); | |
1485 | break; | |
1486 | } | |
1da177e4 LT |
1487 | |
1488 | /* UDP Fix */ | |
1489 | val64 = 0; | |
20346722 | 1490 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1491 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1492 | ||
5e25b9dd | 1493 | /* Set the default rts frame length for the rings configured */ |
1494 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1495 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1496 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1497 | ||
1498 | /* Set the frame length for the configured rings | |
1499 | * desired by the user | |
1500 | */ | |
1501 | for (i = 0; i < config->rx_ring_num; i++) { | |
1502 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1503 | * specified frame length steering. | |
1504 | * If the user provides the frame length then program | |
1505 | * the rts_frm_len register for those values or else | |
1506 | * leave it as it is. | |
1507 | */ | |
1508 | if (rts_frm_len[i] != 0) { | |
1509 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
1510 | &bar0->rts_frm_len_n[i]); | |
1511 | } | |
1512 | } | |
8a4bdbaa | 1513 | |
9fc93a41 SS |
1514 | /* Disable differentiated services steering logic */ |
1515 | for (i = 0; i < 64; i++) { | |
1516 | if (rts_ds_steer(nic, i, 0) == FAILURE) { | |
1517 | DBG_PRINT(ERR_DBG, "%s: failed rts ds steering", | |
1518 | dev->name); | |
1519 | DBG_PRINT(ERR_DBG, "set on codepoint %d\n", i); | |
9f74ffde | 1520 | return -ENODEV; |
9fc93a41 SS |
1521 | } |
1522 | } | |
1523 | ||
20346722 | 1524 | /* Program statistics memory */ |
1da177e4 | 1525 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1526 | |
541ae68f | 1527 | if (nic->device_type == XFRAME_II_DEVICE) { |
1528 | val64 = STAT_BC(0x320); | |
1529 | writeq(val64, &bar0->stat_byte_cnt); | |
1530 | } | |
1531 | ||
20346722 | 1532 | /* |
1da177e4 LT |
1533 | * Initializing the sampling rate for the device to calculate the |
1534 | * bandwidth utilization. | |
1535 | */ | |
1536 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
1537 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); | |
1538 | writeq(val64, &bar0->mac_link_util); | |
1539 | ||
1540 | ||
20346722 | 1541 | /* |
1542 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1543 | * Scheme. |
1544 | */ | |
20346722 | 1545 | /* |
1546 | * TTI Initialization. Default Tx timer gets us about | |
1da177e4 LT |
1547 | * 250 interrupts per sec. Continuous interrupts are enabled |
1548 | * by default. | |
1549 | */ | |
541ae68f | 1550 | if (nic->device_type == XFRAME_II_DEVICE) { |
1551 | int count = (nic->config.bus_speed * 125)/2; | |
1552 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1553 | } else { | |
1554 | ||
1555 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1556 | } | |
1557 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
1da177e4 | 1558 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
5e25b9dd | 1559 | TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN; |
541ae68f | 1560 | if (use_continuous_tx_intrs) |
1561 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
1da177e4 LT |
1562 | writeq(val64, &bar0->tti_data1_mem); |
1563 | ||
1564 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1565 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
19a60522 | 1566 | TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80); |
1da177e4 LT |
1567 | writeq(val64, &bar0->tti_data2_mem); |
1568 | ||
1569 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1570 | writeq(val64, &bar0->tti_command_mem); | |
1571 | ||
20346722 | 1572 | /* |
1da177e4 LT |
1573 | * Once the operation completes, the Strobe bit of the command |
1574 | * register will be reset. We poll for this particular condition | |
1575 | * We wait for a maximum of 500ms for the operation to complete, | |
1576 | * if it's not complete by then we return error. | |
1577 | */ | |
1578 | time = 0; | |
1579 | while (TRUE) { | |
1580 | val64 = readq(&bar0->tti_command_mem); | |
1581 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1582 | break; | |
1583 | } | |
1584 | if (time > 10) { | |
1585 | DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", | |
1586 | dev->name); | |
9f74ffde | 1587 | return -ENODEV; |
1da177e4 LT |
1588 | } |
1589 | msleep(50); | |
1590 | time++; | |
1591 | } | |
1592 | ||
8a4bdbaa SS |
1593 | /* RTI Initialization */ |
1594 | if (nic->device_type == XFRAME_II_DEVICE) { | |
541ae68f | 1595 | /* |
8a4bdbaa SS |
1596 | * Programmed to generate Apprx 500 Intrs per |
1597 | * second | |
1598 | */ | |
1599 | int count = (nic->config.bus_speed * 125)/4; | |
1600 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1601 | } else | |
1602 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1603 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
1604 | RTI_DATA1_MEM_RX_URNG_B(0x10) | | |
1605 | RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
1606 | ||
1607 | writeq(val64, &bar0->rti_data1_mem); | |
1608 | ||
1609 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | | |
1610 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; | |
1611 | if (nic->config.intr_type == MSI_X) | |
1612 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \ | |
1613 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
1614 | else | |
1615 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \ | |
1616 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
1617 | writeq(val64, &bar0->rti_data2_mem); | |
1da177e4 | 1618 | |
8a4bdbaa SS |
1619 | for (i = 0; i < config->rx_ring_num; i++) { |
1620 | val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD | |
1621 | | RTI_CMD_MEM_OFFSET(i); | |
1622 | writeq(val64, &bar0->rti_command_mem); | |
1da177e4 | 1623 | |
8a4bdbaa SS |
1624 | /* |
1625 | * Once the operation completes, the Strobe bit of the | |
1626 | * command register will be reset. We poll for this | |
1627 | * particular condition. We wait for a maximum of 500ms | |
1628 | * for the operation to complete, if it's not complete | |
1629 | * by then we return error. | |
1630 | */ | |
1631 | time = 0; | |
1632 | while (TRUE) { | |
1633 | val64 = readq(&bar0->rti_command_mem); | |
1634 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) | |
1635 | break; | |
b6e3f982 | 1636 | |
8a4bdbaa SS |
1637 | if (time > 10) { |
1638 | DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", | |
1639 | dev->name); | |
9f74ffde | 1640 | return -ENODEV; |
b6e3f982 | 1641 | } |
8a4bdbaa SS |
1642 | time++; |
1643 | msleep(50); | |
1da177e4 | 1644 | } |
1da177e4 LT |
1645 | } |
1646 | ||
20346722 | 1647 | /* |
1648 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1649 | * the 8 Queues on Rx side. |
1650 | */ | |
1651 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1652 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1653 | ||
1654 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1655 | add = &bar0->mac_cfg; |
1da177e4 LT |
1656 | val64 = readq(&bar0->mac_cfg); |
1657 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1658 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1659 | writel((u32) (val64), add); | |
1660 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1661 | writel((u32) (val64 >> 32), (add + 4)); | |
1662 | val64 = readq(&bar0->mac_cfg); | |
1663 | ||
7d3d0439 RA |
1664 | /* Enable FCS stripping by adapter */ |
1665 | add = &bar0->mac_cfg; | |
1666 | val64 = readq(&bar0->mac_cfg); | |
1667 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1668 | if (nic->device_type == XFRAME_II_DEVICE) | |
1669 | writeq(val64, &bar0->mac_cfg); | |
1670 | else { | |
1671 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1672 | writel((u32) (val64), add); | |
1673 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1674 | writel((u32) (val64 >> 32), (add + 4)); | |
1675 | } | |
1676 | ||
20346722 | 1677 | /* |
1678 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1679 | * generated by xena. |
1680 | */ | |
1681 | val64 = readq(&bar0->rmac_pause_cfg); | |
1682 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1683 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1684 | writeq(val64, &bar0->rmac_pause_cfg); | |
1685 | ||
20346722 | 1686 | /* |
1da177e4 LT |
1687 | * Set the Threshold Limit for Generating the pause frame |
1688 | * If the amount of data in any Queue exceeds ratio of | |
1689 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1690 | * pause frame is generated | |
1691 | */ | |
1692 | val64 = 0; | |
1693 | for (i = 0; i < 4; i++) { | |
1694 | val64 |= | |
1695 | (((u64) 0xFF00 | nic->mac_control. | |
1696 | mc_pause_threshold_q0q3) | |
1697 | << (i * 2 * 8)); | |
1698 | } | |
1699 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1700 | ||
1701 | val64 = 0; | |
1702 | for (i = 0; i < 4; i++) { | |
1703 | val64 |= | |
1704 | (((u64) 0xFF00 | nic->mac_control. | |
1705 | mc_pause_threshold_q4q7) | |
1706 | << (i * 2 * 8)); | |
1707 | } | |
1708 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1709 | ||
20346722 | 1710 | /* |
1711 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1712 | * exceeded the limit pointed by shared_splits |
1713 | */ | |
1714 | val64 = readq(&bar0->pic_control); | |
1715 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1716 | writeq(val64, &bar0->pic_control); | |
1717 | ||
863c11a9 AR |
1718 | if (nic->config.bus_speed == 266) { |
1719 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1720 | writeq(0x0, &bar0->read_retry_delay); | |
1721 | writeq(0x0, &bar0->write_retry_delay); | |
1722 | } | |
1723 | ||
541ae68f | 1724 | /* |
1725 | * Programming the Herc to split every write transaction | |
1726 | * that does not start on an ADB to reduce disconnects. | |
1727 | */ | |
1728 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1729 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1730 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1731 | writeq(val64, &bar0->misc_control); |
1732 | val64 = readq(&bar0->pic_control2); | |
b7b5a128 | 1733 | val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15)); |
863c11a9 | 1734 | writeq(val64, &bar0->pic_control2); |
541ae68f | 1735 | } |
c92ca04b AR |
1736 | if (strstr(nic->product_name, "CX4")) { |
1737 | val64 = TMAC_AVG_IPG(0x17); | |
1738 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d | 1739 | } |
1740 | ||
1da177e4 LT |
1741 | return SUCCESS; |
1742 | } | |
a371a07d | 1743 | #define LINK_UP_DOWN_INTERRUPT 1 |
1744 | #define MAC_RMAC_ERR_TIMER 2 | |
1745 | ||
1ee6dd77 | 1746 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d | 1747 | { |
eaae7f72 | 1748 | if (nic->config.intr_type != INTA) |
cc6e7c44 | 1749 | return MAC_RMAC_ERR_TIMER; |
a371a07d | 1750 | if (nic->device_type == XFRAME_II_DEVICE) |
1751 | return LINK_UP_DOWN_INTERRUPT; | |
1752 | else | |
1753 | return MAC_RMAC_ERR_TIMER; | |
1754 | } | |
8116f3cf | 1755 | |
9caab458 SS |
1756 | /** |
1757 | * do_s2io_write_bits - update alarm bits in alarm register | |
1758 | * @value: alarm bits | |
1759 | * @flag: interrupt status | |
1760 | * @addr: address value | |
1761 | * Description: update alarm bits in alarm register | |
1762 | * Return Value: | |
1763 | * NONE. | |
1764 | */ | |
1765 | static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr) | |
1766 | { | |
1767 | u64 temp64; | |
1768 | ||
1769 | temp64 = readq(addr); | |
1770 | ||
1771 | if(flag == ENABLE_INTRS) | |
1772 | temp64 &= ~((u64) value); | |
1773 | else | |
1774 | temp64 |= ((u64) value); | |
1775 | writeq(temp64, addr); | |
1776 | } | |
1da177e4 | 1777 | |
43b7c451 | 1778 | static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag) |
9caab458 SS |
1779 | { |
1780 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
1781 | register u64 gen_int_mask = 0; | |
1782 | ||
1783 | if (mask & TX_DMA_INTR) { | |
1784 | ||
1785 | gen_int_mask |= TXDMA_INT_M; | |
1786 | ||
1787 | do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT | | |
1788 | TXDMA_PCC_INT | TXDMA_TTI_INT | | |
1789 | TXDMA_LSO_INT | TXDMA_TPA_INT | | |
1790 | TXDMA_SM_INT, flag, &bar0->txdma_int_mask); | |
1791 | ||
1792 | do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM | | |
1793 | PFC_MISC_0_ERR | PFC_MISC_1_ERR | | |
1794 | PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag, | |
1795 | &bar0->pfc_err_mask); | |
1796 | ||
1797 | do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM | | |
1798 | TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR | | |
1799 | TDA_PCIX_ERR, flag, &bar0->tda_err_mask); | |
1800 | ||
1801 | do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR | | |
1802 | PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | | |
1803 | PCC_N_SERR | PCC_6_COF_OV_ERR | | |
1804 | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | | |
1805 | PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR | | |
1806 | PCC_TXB_ECC_SG_ERR, flag, &bar0->pcc_err_mask); | |
1807 | ||
1808 | do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR | | |
1809 | TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask); | |
1810 | ||
1811 | do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT | | |
1812 | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM | | |
1813 | LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
1814 | flag, &bar0->lso_err_mask); | |
1815 | ||
1816 | do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP, | |
1817 | flag, &bar0->tpa_err_mask); | |
1818 | ||
1819 | do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask); | |
1820 | ||
1821 | } | |
1822 | ||
1823 | if (mask & TX_MAC_INTR) { | |
1824 | gen_int_mask |= TXMAC_INT_M; | |
1825 | do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag, | |
1826 | &bar0->mac_int_mask); | |
1827 | do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR | | |
1828 | TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | | |
1829 | TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR, | |
1830 | flag, &bar0->mac_tmac_err_mask); | |
1831 | } | |
1832 | ||
1833 | if (mask & TX_XGXS_INTR) { | |
1834 | gen_int_mask |= TXXGXS_INT_M; | |
1835 | do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag, | |
1836 | &bar0->xgxs_int_mask); | |
1837 | do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR | | |
1838 | TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, | |
1839 | flag, &bar0->xgxs_txgxs_err_mask); | |
1840 | } | |
1841 | ||
1842 | if (mask & RX_DMA_INTR) { | |
1843 | gen_int_mask |= RXDMA_INT_M; | |
1844 | do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M | | |
1845 | RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M, | |
1846 | flag, &bar0->rxdma_int_mask); | |
1847 | do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR | | |
1848 | RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM | | |
1849 | RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR | | |
1850 | RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask); | |
1851 | do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn | | |
1852 | PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn | | |
1853 | PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag, | |
1854 | &bar0->prc_pcix_err_mask); | |
1855 | do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR | | |
1856 | RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag, | |
1857 | &bar0->rpa_err_mask); | |
1858 | do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR | | |
1859 | RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM | | |
1860 | RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR | | |
1861 | RDA_FRM_ECC_SG_ERR | RDA_MISC_ERR|RDA_PCIX_ERR, | |
1862 | flag, &bar0->rda_err_mask); | |
1863 | do_s2io_write_bits(RTI_SM_ERR_ALARM | | |
1864 | RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, | |
1865 | flag, &bar0->rti_err_mask); | |
1866 | } | |
1867 | ||
1868 | if (mask & RX_MAC_INTR) { | |
1869 | gen_int_mask |= RXMAC_INT_M; | |
1870 | do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag, | |
1871 | &bar0->mac_int_mask); | |
1872 | do_s2io_write_bits(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR | | |
1873 | RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR | | |
1874 | RMAC_DOUBLE_ECC_ERR | | |
1875 | RMAC_LINK_STATE_CHANGE_INT, | |
1876 | flag, &bar0->mac_rmac_err_mask); | |
1877 | } | |
1878 | ||
1879 | if (mask & RX_XGXS_INTR) | |
1880 | { | |
1881 | gen_int_mask |= RXXGXS_INT_M; | |
1882 | do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag, | |
1883 | &bar0->xgxs_int_mask); | |
1884 | do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag, | |
1885 | &bar0->xgxs_rxgxs_err_mask); | |
1886 | } | |
1887 | ||
1888 | if (mask & MC_INTR) { | |
1889 | gen_int_mask |= MC_INT_M; | |
1890 | do_s2io_write_bits(MC_INT_MASK_MC_INT, flag, &bar0->mc_int_mask); | |
1891 | do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG | | |
1892 | MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag, | |
1893 | &bar0->mc_err_mask); | |
1894 | } | |
1895 | nic->general_int_mask = gen_int_mask; | |
1896 | ||
1897 | /* Remove this line when alarm interrupts are enabled */ | |
1898 | nic->general_int_mask = 0; | |
1899 | } | |
20346722 | 1900 | /** |
1901 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1902 | * @nic: device private variable, |
1903 | * @mask: A mask indicating which Intr block must be modified and, | |
1904 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1905 | * Description: This function will either disable or enable the interrupts | |
20346722 | 1906 | * depending on the flag argument. The mask argument can be used to |
1907 | * enable/disable any Intr block. | |
1da177e4 LT |
1908 | * Return Value: NONE. |
1909 | */ | |
1910 | ||
1911 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1912 | { | |
1ee6dd77 | 1913 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
9caab458 SS |
1914 | register u64 temp64 = 0, intr_mask = 0; |
1915 | ||
1916 | intr_mask = nic->general_int_mask; | |
1da177e4 LT |
1917 | |
1918 | /* Top level interrupt classification */ | |
1919 | /* PIC Interrupts */ | |
9caab458 | 1920 | if (mask & TX_PIC_INTR) { |
1da177e4 | 1921 | /* Enable PIC Intrs in the general intr mask register */ |
9caab458 | 1922 | intr_mask |= TXPIC_INT_M; |
1da177e4 | 1923 | if (flag == ENABLE_INTRS) { |
20346722 | 1924 | /* |
a371a07d | 1925 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 1926 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 | 1927 | * interrupts for now. |
1928 | * TODO | |
1da177e4 | 1929 | */ |
a371a07d | 1930 | if (s2io_link_fault_indication(nic) == |
1931 | LINK_UP_DOWN_INTERRUPT ) { | |
9caab458 SS |
1932 | do_s2io_write_bits(PIC_INT_GPIO, flag, |
1933 | &bar0->pic_int_mask); | |
1934 | do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag, | |
1935 | &bar0->gpio_int_mask); | |
1936 | } else | |
a371a07d | 1937 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); |
1da177e4 | 1938 | } else if (flag == DISABLE_INTRS) { |
20346722 | 1939 | /* |
1940 | * Disable PIC Intrs in the general | |
1941 | * intr mask register | |
1da177e4 LT |
1942 | */ |
1943 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1da177e4 LT |
1944 | } |
1945 | } | |
1946 | ||
1da177e4 LT |
1947 | /* Tx traffic interrupts */ |
1948 | if (mask & TX_TRAFFIC_INTR) { | |
9caab458 | 1949 | intr_mask |= TXTRAFFIC_INT_M; |
1da177e4 | 1950 | if (flag == ENABLE_INTRS) { |
20346722 | 1951 | /* |
1da177e4 | 1952 | * Enable all the Tx side interrupts |
20346722 | 1953 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
1954 | */ |
1955 | writeq(0x0, &bar0->tx_traffic_mask); | |
1956 | } else if (flag == DISABLE_INTRS) { | |
20346722 | 1957 | /* |
1958 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1959 | * register. |
1960 | */ | |
1961 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1da177e4 LT |
1962 | } |
1963 | } | |
1964 | ||
1965 | /* Rx traffic interrupts */ | |
1966 | if (mask & RX_TRAFFIC_INTR) { | |
9caab458 | 1967 | intr_mask |= RXTRAFFIC_INT_M; |
1da177e4 | 1968 | if (flag == ENABLE_INTRS) { |
1da177e4 LT |
1969 | /* writing 0 Enables all 8 RX interrupt levels */ |
1970 | writeq(0x0, &bar0->rx_traffic_mask); | |
1971 | } else if (flag == DISABLE_INTRS) { | |
20346722 | 1972 | /* |
1973 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1974 | * register. |
1975 | */ | |
1976 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1da177e4 LT |
1977 | } |
1978 | } | |
9caab458 SS |
1979 | |
1980 | temp64 = readq(&bar0->general_int_mask); | |
1981 | if (flag == ENABLE_INTRS) | |
1982 | temp64 &= ~((u64) intr_mask); | |
1983 | else | |
1984 | temp64 = DISABLE_ALL_INTRS; | |
1985 | writeq(temp64, &bar0->general_int_mask); | |
1986 | ||
1987 | nic->general_int_mask = readq(&bar0->general_int_mask); | |
1da177e4 LT |
1988 | } |
1989 | ||
19a60522 SS |
1990 | /** |
1991 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
1992 | * Return: 1 If PCC is quiescence | |
1993 | * 0 If PCC is not quiescence | |
1994 | */ | |
1ee6dd77 | 1995 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 1996 | { |
19a60522 | 1997 | int ret = 0, herc; |
1ee6dd77 | 1998 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 | 1999 | u64 val64 = readq(&bar0->adapter_status); |
8a4bdbaa | 2000 | |
19a60522 | 2001 | herc = (sp->device_type == XFRAME_II_DEVICE); |
20346722 | 2002 | |
2003 | if (flag == FALSE) { | |
44c10138 | 2004 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
19a60522 | 2005 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2006 | ret = 1; |
19a60522 SS |
2007 | } else { |
2008 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 2009 | ret = 1; |
20346722 | 2010 | } |
2011 | } else { | |
44c10138 | 2012 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
5e25b9dd | 2013 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 2014 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 2015 | ret = 1; |
5e25b9dd | 2016 | } else { |
2017 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 2018 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 2019 | ret = 1; |
20346722 | 2020 | } |
2021 | } | |
2022 | ||
2023 | return ret; | |
2024 | } | |
2025 | /** | |
2026 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 2027 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 2028 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
2029 | * differs and the calling function passes the input argument flag to |
2030 | * indicate this. | |
20346722 | 2031 | * Return: 1 If xena is quiescence |
1da177e4 LT |
2032 | * 0 If Xena is not quiescence |
2033 | */ | |
2034 | ||
1ee6dd77 | 2035 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 2036 | { |
19a60522 | 2037 | int mode; |
1ee6dd77 | 2038 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
2039 | u64 val64 = readq(&bar0->adapter_status); |
2040 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 2041 | |
19a60522 SS |
2042 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
2043 | DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!"); | |
2044 | return 0; | |
2045 | } | |
2046 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
2047 | DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!"); | |
2048 | return 0; | |
2049 | } | |
2050 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
2051 | DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!"); | |
2052 | return 0; | |
2053 | } | |
2054 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
2055 | DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!"); | |
2056 | return 0; | |
2057 | } | |
2058 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
2059 | DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!"); | |
2060 | return 0; | |
2061 | } | |
2062 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
2063 | DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!"); | |
2064 | return 0; | |
2065 | } | |
2066 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
2067 | DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!"); | |
2068 | return 0; | |
2069 | } | |
2070 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
2071 | DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!"); | |
2072 | return 0; | |
1da177e4 LT |
2073 | } |
2074 | ||
19a60522 SS |
2075 | /* |
2076 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
2077 | * the the P_PLL_LOCK bit in the adapter_status register will | |
2078 | * not be asserted. | |
2079 | */ | |
2080 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
2081 | sp->device_type == XFRAME_II_DEVICE && mode != | |
2082 | PCI_MODE_PCI_33) { | |
2083 | DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!"); | |
2084 | return 0; | |
2085 | } | |
2086 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
2087 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
2088 | DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!"); | |
2089 | return 0; | |
2090 | } | |
2091 | return 1; | |
1da177e4 LT |
2092 | } |
2093 | ||
2094 | /** | |
2095 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
2096 | * @sp: Pointer to device specifc structure | |
20346722 | 2097 | * Description : |
1da177e4 LT |
2098 | * New procedure to clear mac address reading problems on Alpha platforms |
2099 | * | |
2100 | */ | |
2101 | ||
1ee6dd77 | 2102 | static void fix_mac_address(struct s2io_nic * sp) |
1da177e4 | 2103 | { |
1ee6dd77 | 2104 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
2105 | u64 val64; |
2106 | int i = 0; | |
2107 | ||
2108 | while (fix_mac[i] != END_SIGN) { | |
2109 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 2110 | udelay(10); |
1da177e4 LT |
2111 | val64 = readq(&bar0->gpio_control); |
2112 | } | |
2113 | } | |
2114 | ||
2115 | /** | |
20346722 | 2116 | * start_nic - Turns the device on |
1da177e4 | 2117 | * @nic : device private variable. |
20346722 | 2118 | * Description: |
2119 | * This function actually turns the device on. Before this function is | |
2120 | * called,all Registers are configured from their reset states | |
2121 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
2122 | * calling this function, the device interrupts are cleared and the NIC is |
2123 | * literally switched on by writing into the adapter control register. | |
20346722 | 2124 | * Return Value: |
1da177e4 LT |
2125 | * SUCCESS on success and -1 on failure. |
2126 | */ | |
2127 | ||
2128 | static int start_nic(struct s2io_nic *nic) | |
2129 | { | |
1ee6dd77 | 2130 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
2131 | struct net_device *dev = nic->dev; |
2132 | register u64 val64 = 0; | |
20346722 | 2133 | u16 subid, i; |
1ee6dd77 | 2134 | struct mac_info *mac_control; |
1da177e4 LT |
2135 | struct config_param *config; |
2136 | ||
2137 | mac_control = &nic->mac_control; | |
2138 | config = &nic->config; | |
2139 | ||
2140 | /* PRC Initialization and configuration */ | |
2141 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 2142 | writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2143 | &bar0->prc_rxd0_n[i]); |
2144 | ||
2145 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
da6971d8 AR |
2146 | if (nic->rxd_mode == RXD_MODE_1) |
2147 | val64 |= PRC_CTRL_RC_ENABLED; | |
2148 | else | |
2149 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2150 | if (nic->device_type == XFRAME_II_DEVICE) |
2151 | val64 |= PRC_CTRL_GROUP_READS; | |
2152 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2153 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2154 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2155 | } | |
2156 | ||
da6971d8 AR |
2157 | if (nic->rxd_mode == RXD_MODE_3B) { |
2158 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2159 | val64 = readq(&bar0->rx_pa_cfg); | |
2160 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2161 | writeq(val64, &bar0->rx_pa_cfg); | |
2162 | } | |
1da177e4 | 2163 | |
926930b2 SS |
2164 | if (vlan_tag_strip == 0) { |
2165 | val64 = readq(&bar0->rx_pa_cfg); | |
2166 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
2167 | writeq(val64, &bar0->rx_pa_cfg); | |
2168 | vlan_strip_flag = 0; | |
2169 | } | |
2170 | ||
20346722 | 2171 | /* |
1da177e4 LT |
2172 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2173 | * for around 100ms, which is approximately the time required | |
2174 | * for the device to be ready for operation. | |
2175 | */ | |
2176 | val64 = readq(&bar0->mc_rldram_mrs); | |
2177 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2178 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2179 | val64 = readq(&bar0->mc_rldram_mrs); | |
2180 | ||
20346722 | 2181 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2182 | |
2183 | /* Enabling ECC Protection. */ | |
2184 | val64 = readq(&bar0->adapter_control); | |
2185 | val64 &= ~ADAPTER_ECC_EN; | |
2186 | writeq(val64, &bar0->adapter_control); | |
2187 | ||
20346722 | 2188 | /* |
2189 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2190 | * it. |
2191 | */ | |
2192 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 2193 | if (!verify_xena_quiescence(nic)) { |
1da177e4 LT |
2194 | DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name); |
2195 | DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n", | |
2196 | (unsigned long long) val64); | |
2197 | return FAILURE; | |
2198 | } | |
2199 | ||
20346722 | 2200 | /* |
1da177e4 | 2201 | * With some switches, link might be already up at this point. |
20346722 | 2202 | * Because of this weird behavior, when we enable laser, |
2203 | * we may not get link. We need to handle this. We cannot | |
2204 | * figure out which switch is misbehaving. So we are forced to | |
2205 | * make a global change. | |
1da177e4 LT |
2206 | */ |
2207 | ||
2208 | /* Enabling Laser. */ | |
2209 | val64 = readq(&bar0->adapter_control); | |
2210 | val64 |= ADAPTER_EOI_TX_ON; | |
2211 | writeq(val64, &bar0->adapter_control); | |
2212 | ||
c92ca04b AR |
2213 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2214 | /* | |
2215 | * Dont see link state interrupts initally on some switches, | |
2216 | * so directly scheduling the link state task here. | |
2217 | */ | |
2218 | schedule_work(&nic->set_link_task); | |
2219 | } | |
1da177e4 LT |
2220 | /* SXE-002: Initialize link and activity LED */ |
2221 | subid = nic->pdev->subsystem_device; | |
541ae68f | 2222 | if (((subid & 0xFF) >= 0x07) && |
2223 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2224 | val64 = readq(&bar0->gpio_control); |
2225 | val64 |= 0x0000800000000000ULL; | |
2226 | writeq(val64, &bar0->gpio_control); | |
2227 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2228 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2229 | } |
2230 | ||
1da177e4 LT |
2231 | return SUCCESS; |
2232 | } | |
fed5eccd AR |
2233 | /** |
2234 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2235 | */ | |
1ee6dd77 RB |
2236 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, struct \ |
2237 | TxD *txdlp, int get_off) | |
fed5eccd | 2238 | { |
1ee6dd77 | 2239 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2240 | struct sk_buff *skb; |
1ee6dd77 | 2241 | struct TxD *txds; |
fed5eccd AR |
2242 | u16 j, frg_cnt; |
2243 | ||
2244 | txds = txdlp; | |
26b7625c | 2245 | if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) { |
fed5eccd AR |
2246 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2247 | txds->Buffer_Pointer, sizeof(u64), | |
2248 | PCI_DMA_TODEVICE); | |
2249 | txds++; | |
2250 | } | |
2251 | ||
2252 | skb = (struct sk_buff *) ((unsigned long) | |
2253 | txds->Host_Control); | |
2254 | if (!skb) { | |
1ee6dd77 | 2255 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2256 | return NULL; |
2257 | } | |
2258 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2259 | txds->Buffer_Pointer, | |
2260 | skb->len - skb->data_len, | |
2261 | PCI_DMA_TODEVICE); | |
2262 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
2263 | if (frg_cnt) { | |
2264 | txds++; | |
2265 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2266 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2267 | if (!txds->Buffer_Pointer) | |
2268 | break; | |
6aa20a22 | 2269 | pci_unmap_page(nic->pdev, (dma_addr_t) |
fed5eccd AR |
2270 | txds->Buffer_Pointer, |
2271 | frag->size, PCI_DMA_TODEVICE); | |
2272 | } | |
2273 | } | |
1ee6dd77 | 2274 | memset(txdlp,0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2275 | return(skb); |
2276 | } | |
1da177e4 | 2277 | |
20346722 | 2278 | /** |
2279 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2280 | * @nic : device private variable. |
20346722 | 2281 | * Description: |
1da177e4 | 2282 | * Free all queued Tx buffers. |
20346722 | 2283 | * Return Value: void |
1da177e4 LT |
2284 | */ |
2285 | ||
2286 | static void free_tx_buffers(struct s2io_nic *nic) | |
2287 | { | |
2288 | struct net_device *dev = nic->dev; | |
2289 | struct sk_buff *skb; | |
1ee6dd77 | 2290 | struct TxD *txdp; |
1da177e4 | 2291 | int i, j; |
1ee6dd77 | 2292 | struct mac_info *mac_control; |
1da177e4 | 2293 | struct config_param *config; |
fed5eccd | 2294 | int cnt = 0; |
1da177e4 LT |
2295 | |
2296 | mac_control = &nic->mac_control; | |
2297 | config = &nic->config; | |
2298 | ||
2299 | for (i = 0; i < config->tx_fifo_num; i++) { | |
2300 | for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) { | |
491976b2 SH |
2301 | txdp = (struct TxD *) \ |
2302 | mac_control->fifos[i].list_info[j].list_virt_addr; | |
fed5eccd AR |
2303 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2304 | if (skb) { | |
8a4bdbaa | 2305 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 2306 | += skb->truesize; |
fed5eccd AR |
2307 | dev_kfree_skb(skb); |
2308 | cnt++; | |
1da177e4 | 2309 | } |
1da177e4 LT |
2310 | } |
2311 | DBG_PRINT(INTR_DBG, | |
2312 | "%s:forcibly freeing %d skbs on FIFO%d\n", | |
2313 | dev->name, cnt, i); | |
20346722 | 2314 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
2315 | mac_control->fifos[i].tx_curr_put_info.offset = 0; | |
1da177e4 LT |
2316 | } |
2317 | } | |
2318 | ||
20346722 | 2319 | /** |
2320 | * stop_nic - To stop the nic | |
1da177e4 | 2321 | * @nic ; device private variable. |
20346722 | 2322 | * Description: |
2323 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2324 | * function does. This function is called to stop the device. |
2325 | * Return Value: | |
2326 | * void. | |
2327 | */ | |
2328 | ||
2329 | static void stop_nic(struct s2io_nic *nic) | |
2330 | { | |
1ee6dd77 | 2331 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2332 | register u64 val64 = 0; |
5d3213cc | 2333 | u16 interruptible; |
1ee6dd77 | 2334 | struct mac_info *mac_control; |
1da177e4 LT |
2335 | struct config_param *config; |
2336 | ||
2337 | mac_control = &nic->mac_control; | |
2338 | config = &nic->config; | |
2339 | ||
2340 | /* Disable all interrupts */ | |
9caab458 | 2341 | en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS); |
e960fc5c | 2342 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
9caab458 | 2343 | interruptible |= TX_PIC_INTR; |
1da177e4 LT |
2344 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2345 | ||
5d3213cc AR |
2346 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2347 | val64 = readq(&bar0->adapter_control); | |
2348 | val64 &= ~(ADAPTER_CNTL_EN); | |
2349 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2350 | } |
2351 | ||
20346722 | 2352 | /** |
2353 | * fill_rx_buffers - Allocates the Rx side skbs | |
1da177e4 | 2354 | * @nic: device private variable |
20346722 | 2355 | * @ring_no: ring number |
2356 | * Description: | |
1da177e4 LT |
2357 | * The function allocates Rx side skbs and puts the physical |
2358 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2359 | * can DMA the received frame into these locations. | |
2360 | * The NIC supports 3 receive modes, viz | |
2361 | * 1. single buffer, | |
2362 | * 2. three buffer and | |
2363 | * 3. Five buffer modes. | |
20346722 | 2364 | * Each mode defines how many fragments the received frame will be split |
2365 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2366 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2367 | * is split into 3 fragments. As of now only single buffer mode is | |
2368 | * supported. | |
2369 | * Return Value: | |
2370 | * SUCCESS on success or an appropriate -ve value on failure. | |
2371 | */ | |
2372 | ||
ac1f60db | 2373 | static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) |
1da177e4 LT |
2374 | { |
2375 | struct net_device *dev = nic->dev; | |
2376 | struct sk_buff *skb; | |
1ee6dd77 | 2377 | struct RxD_t *rxdp; |
1da177e4 | 2378 | int off, off1, size, block_no, block_no1; |
1da177e4 | 2379 | u32 alloc_tab = 0; |
20346722 | 2380 | u32 alloc_cnt; |
1ee6dd77 | 2381 | struct mac_info *mac_control; |
1da177e4 | 2382 | struct config_param *config; |
20346722 | 2383 | u64 tmp; |
1ee6dd77 | 2384 | struct buffAdd *ba; |
1da177e4 | 2385 | unsigned long flags; |
1ee6dd77 | 2386 | struct RxD_t *first_rxdp = NULL; |
363dc367 | 2387 | u64 Buffer0_ptr = 0, Buffer1_ptr = 0; |
6d517a27 VP |
2388 | struct RxD1 *rxdp1; |
2389 | struct RxD3 *rxdp3; | |
491abf25 | 2390 | struct swStat *stats = &nic->mac_control.stats_info->sw_stat; |
1da177e4 LT |
2391 | |
2392 | mac_control = &nic->mac_control; | |
2393 | config = &nic->config; | |
20346722 | 2394 | alloc_cnt = mac_control->rings[ring_no].pkt_cnt - |
2395 | atomic_read(&nic->rx_bufs_left[ring_no]); | |
1da177e4 | 2396 | |
5d3213cc | 2397 | block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index; |
863c11a9 | 2398 | off1 = mac_control->rings[ring_no].rx_curr_get_info.offset; |
1da177e4 | 2399 | while (alloc_tab < alloc_cnt) { |
20346722 | 2400 | block_no = mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2401 | block_index; |
20346722 | 2402 | off = mac_control->rings[ring_no].rx_curr_put_info.offset; |
1da177e4 | 2403 | |
da6971d8 AR |
2404 | rxdp = mac_control->rings[ring_no]. |
2405 | rx_blocks[block_no].rxds[off].virt_addr; | |
2406 | ||
2407 | if ((block_no == block_no1) && (off == off1) && | |
2408 | (rxdp->Host_Control)) { | |
2409 | DBG_PRINT(INTR_DBG, "%s: Get and Put", | |
2410 | dev->name); | |
1da177e4 LT |
2411 | DBG_PRINT(INTR_DBG, " info equated\n"); |
2412 | goto end; | |
2413 | } | |
da6971d8 | 2414 | if (off && (off == rxd_count[nic->rxd_mode])) { |
20346722 | 2415 | mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2416 | block_index++; |
da6971d8 AR |
2417 | if (mac_control->rings[ring_no].rx_curr_put_info. |
2418 | block_index == mac_control->rings[ring_no]. | |
2419 | block_count) | |
2420 | mac_control->rings[ring_no].rx_curr_put_info. | |
2421 | block_index = 0; | |
2422 | block_no = mac_control->rings[ring_no]. | |
2423 | rx_curr_put_info.block_index; | |
2424 | if (off == rxd_count[nic->rxd_mode]) | |
2425 | off = 0; | |
20346722 | 2426 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 AR |
2427 | offset = off; |
2428 | rxdp = mac_control->rings[ring_no]. | |
2429 | rx_blocks[block_no].block_virt_addr; | |
1da177e4 LT |
2430 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
2431 | dev->name, rxdp); | |
2432 | } | |
db874e65 SS |
2433 | if(!napi) { |
2434 | spin_lock_irqsave(&nic->put_lock, flags); | |
2435 | mac_control->rings[ring_no].put_pos = | |
2436 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2437 | spin_unlock_irqrestore(&nic->put_lock, flags); | |
2438 | } else { | |
2439 | mac_control->rings[ring_no].put_pos = | |
2440 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2441 | } | |
da6971d8 | 2442 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
6d517a27 | 2443 | ((nic->rxd_mode == RXD_MODE_3B) && |
b7b5a128 | 2444 | (rxdp->Control_2 & s2BIT(0)))) { |
20346722 | 2445 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 | 2446 | offset = off; |
1da177e4 LT |
2447 | goto end; |
2448 | } | |
da6971d8 AR |
2449 | /* calculate size of skb based on ring mode */ |
2450 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
2451 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
2452 | if (nic->rxd_mode == RXD_MODE_1) | |
2453 | size += NET_IP_ALIGN; | |
da6971d8 | 2454 | else |
6d517a27 | 2455 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; |
1da177e4 | 2456 | |
da6971d8 AR |
2457 | /* allocate skb */ |
2458 | skb = dev_alloc_skb(size); | |
2459 | if(!skb) { | |
0c61ed5f RV |
2460 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
2461 | DBG_PRINT(INFO_DBG, "memory to allocate SKBs\n"); | |
303bcb4b | 2462 | if (first_rxdp) { |
2463 | wmb(); | |
2464 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2465 | } | |
c53d4945 SH |
2466 | nic->mac_control.stats_info->sw_stat. \ |
2467 | mem_alloc_fail_cnt++; | |
da6971d8 AR |
2468 | return -ENOMEM ; |
2469 | } | |
8a4bdbaa | 2470 | nic->mac_control.stats_info->sw_stat.mem_allocated |
491976b2 | 2471 | += skb->truesize; |
da6971d8 AR |
2472 | if (nic->rxd_mode == RXD_MODE_1) { |
2473 | /* 1 buffer mode - normal operation mode */ | |
6d517a27 | 2474 | rxdp1 = (struct RxD1*)rxdp; |
1ee6dd77 | 2475 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2476 | skb_reserve(skb, NET_IP_ALIGN); |
6d517a27 | 2477 | rxdp1->Buffer0_ptr = pci_map_single |
863c11a9 AR |
2478 | (nic->pdev, skb->data, size - NET_IP_ALIGN, |
2479 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
2480 | if( (rxdp1->Buffer0_ptr == 0) || |
2481 | (rxdp1->Buffer0_ptr == | |
2482 | DMA_ERROR_CODE)) | |
2483 | goto pci_map_failed; | |
2484 | ||
8a4bdbaa | 2485 | rxdp->Control_2 = |
491976b2 | 2486 | SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); |
da6971d8 | 2487 | |
6d517a27 | 2488 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 | 2489 | /* |
6d517a27 VP |
2490 | * 2 buffer mode - |
2491 | * 2 buffer mode provides 128 | |
da6971d8 | 2492 | * byte aligned receive buffers. |
da6971d8 AR |
2493 | */ |
2494 | ||
6d517a27 | 2495 | rxdp3 = (struct RxD3*)rxdp; |
491976b2 | 2496 | /* save buffer pointers to avoid frequent dma mapping */ |
6d517a27 VP |
2497 | Buffer0_ptr = rxdp3->Buffer0_ptr; |
2498 | Buffer1_ptr = rxdp3->Buffer1_ptr; | |
1ee6dd77 | 2499 | memset(rxdp, 0, sizeof(struct RxD3)); |
363dc367 | 2500 | /* restore the buffer pointers for dma sync*/ |
6d517a27 VP |
2501 | rxdp3->Buffer0_ptr = Buffer0_ptr; |
2502 | rxdp3->Buffer1_ptr = Buffer1_ptr; | |
363dc367 | 2503 | |
da6971d8 AR |
2504 | ba = &mac_control->rings[ring_no].ba[block_no][off]; |
2505 | skb_reserve(skb, BUF0_LEN); | |
2506 | tmp = (u64)(unsigned long) skb->data; | |
2507 | tmp += ALIGN_SIZE; | |
2508 | tmp &= ~ALIGN_SIZE; | |
2509 | skb->data = (void *) (unsigned long)tmp; | |
27a884dc | 2510 | skb_reset_tail_pointer(skb); |
da6971d8 | 2511 | |
6d517a27 VP |
2512 | if (!(rxdp3->Buffer0_ptr)) |
2513 | rxdp3->Buffer0_ptr = | |
75c30b13 | 2514 | pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, |
da6971d8 | 2515 | PCI_DMA_FROMDEVICE); |
75c30b13 AR |
2516 | else |
2517 | pci_dma_sync_single_for_device(nic->pdev, | |
6d517a27 | 2518 | (dma_addr_t) rxdp3->Buffer0_ptr, |
75c30b13 | 2519 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
491abf25 VP |
2520 | if( (rxdp3->Buffer0_ptr == 0) || |
2521 | (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) | |
2522 | goto pci_map_failed; | |
2523 | ||
da6971d8 AR |
2524 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
2525 | if (nic->rxd_mode == RXD_MODE_3B) { | |
2526 | /* Two buffer mode */ | |
2527 | ||
2528 | /* | |
6aa20a22 | 2529 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2530 | * L4 payload |
2531 | */ | |
6d517a27 | 2532 | rxdp3->Buffer2_ptr = pci_map_single |
da6971d8 AR |
2533 | (nic->pdev, skb->data, dev->mtu + 4, |
2534 | PCI_DMA_FROMDEVICE); | |
2535 | ||
491abf25 VP |
2536 | if( (rxdp3->Buffer2_ptr == 0) || |
2537 | (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) | |
2538 | goto pci_map_failed; | |
2539 | ||
2540 | rxdp3->Buffer1_ptr = | |
6aa20a22 | 2541 | pci_map_single(nic->pdev, |
75c30b13 AR |
2542 | ba->ba_1, BUF1_LEN, |
2543 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
2544 | if( (rxdp3->Buffer1_ptr == 0) || |
2545 | (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { | |
2546 | pci_unmap_single | |
2547 | (nic->pdev, | |
3e847423 | 2548 | (dma_addr_t)rxdp3->Buffer2_ptr, |
491abf25 VP |
2549 | dev->mtu + 4, |
2550 | PCI_DMA_FROMDEVICE); | |
2551 | goto pci_map_failed; | |
75c30b13 | 2552 | } |
da6971d8 AR |
2553 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2554 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
2555 | (dev->mtu + 4); | |
da6971d8 | 2556 | } |
b7b5a128 | 2557 | rxdp->Control_2 |= s2BIT(0); |
1da177e4 | 2558 | } |
1da177e4 | 2559 | rxdp->Host_Control = (unsigned long) (skb); |
303bcb4b | 2560 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2561 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2562 | off++; |
da6971d8 AR |
2563 | if (off == (rxd_count[nic->rxd_mode] + 1)) |
2564 | off = 0; | |
20346722 | 2565 | mac_control->rings[ring_no].rx_curr_put_info.offset = off; |
20346722 | 2566 | |
da6971d8 | 2567 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b | 2568 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2569 | if (first_rxdp) { | |
2570 | wmb(); | |
2571 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2572 | } | |
2573 | first_rxdp = rxdp; | |
2574 | } | |
1da177e4 LT |
2575 | atomic_inc(&nic->rx_bufs_left[ring_no]); |
2576 | alloc_tab++; | |
2577 | } | |
2578 | ||
2579 | end: | |
303bcb4b | 2580 | /* Transfer ownership of first descriptor to adapter just before |
2581 | * exiting. Before that, use memory barrier so that ownership | |
2582 | * and other fields are seen by adapter correctly. | |
2583 | */ | |
2584 | if (first_rxdp) { | |
2585 | wmb(); | |
2586 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2587 | } | |
2588 | ||
1da177e4 | 2589 | return SUCCESS; |
491abf25 VP |
2590 | pci_map_failed: |
2591 | stats->pci_map_fail_cnt++; | |
2592 | stats->mem_freed += skb->truesize; | |
2593 | dev_kfree_skb_irq(skb); | |
2594 | return -ENOMEM; | |
1da177e4 LT |
2595 | } |
2596 | ||
da6971d8 AR |
2597 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2598 | { | |
2599 | struct net_device *dev = sp->dev; | |
2600 | int j; | |
2601 | struct sk_buff *skb; | |
1ee6dd77 RB |
2602 | struct RxD_t *rxdp; |
2603 | struct mac_info *mac_control; | |
2604 | struct buffAdd *ba; | |
6d517a27 VP |
2605 | struct RxD1 *rxdp1; |
2606 | struct RxD3 *rxdp3; | |
da6971d8 AR |
2607 | |
2608 | mac_control = &sp->mac_control; | |
2609 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { | |
2610 | rxdp = mac_control->rings[ring_no]. | |
2611 | rx_blocks[blk].rxds[j].virt_addr; | |
2612 | skb = (struct sk_buff *) | |
2613 | ((unsigned long) rxdp->Host_Control); | |
2614 | if (!skb) { | |
2615 | continue; | |
2616 | } | |
2617 | if (sp->rxd_mode == RXD_MODE_1) { | |
6d517a27 | 2618 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2619 | pci_unmap_single(sp->pdev, (dma_addr_t) |
6d517a27 VP |
2620 | rxdp1->Buffer0_ptr, |
2621 | dev->mtu + | |
2622 | HEADER_ETHERNET_II_802_3_SIZE | |
2623 | + HEADER_802_2_SIZE + | |
2624 | HEADER_SNAP_SIZE, | |
2625 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2626 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2627 | } else if(sp->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2628 | rxdp3 = (struct RxD3*)rxdp; |
da6971d8 AR |
2629 | ba = &mac_control->rings[ring_no]. |
2630 | ba[blk][j]; | |
2631 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2632 | rxdp3->Buffer0_ptr, |
2633 | BUF0_LEN, | |
da6971d8 AR |
2634 | PCI_DMA_FROMDEVICE); |
2635 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2636 | rxdp3->Buffer1_ptr, |
2637 | BUF1_LEN, | |
da6971d8 AR |
2638 | PCI_DMA_FROMDEVICE); |
2639 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2640 | rxdp3->Buffer2_ptr, |
2641 | dev->mtu + 4, | |
da6971d8 | 2642 | PCI_DMA_FROMDEVICE); |
1ee6dd77 | 2643 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 | 2644 | } |
491976b2 | 2645 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
da6971d8 AR |
2646 | dev_kfree_skb(skb); |
2647 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
2648 | } | |
2649 | } | |
2650 | ||
1da177e4 | 2651 | /** |
20346722 | 2652 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2653 | * @sp: device private variable. |
20346722 | 2654 | * Description: |
1da177e4 LT |
2655 | * This function will free all Rx buffers allocated by host. |
2656 | * Return Value: | |
2657 | * NONE. | |
2658 | */ | |
2659 | ||
2660 | static void free_rx_buffers(struct s2io_nic *sp) | |
2661 | { | |
2662 | struct net_device *dev = sp->dev; | |
da6971d8 | 2663 | int i, blk = 0, buf_cnt = 0; |
1ee6dd77 | 2664 | struct mac_info *mac_control; |
1da177e4 | 2665 | struct config_param *config; |
1da177e4 LT |
2666 | |
2667 | mac_control = &sp->mac_control; | |
2668 | config = &sp->config; | |
2669 | ||
2670 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
2671 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
2672 | free_rxd_blk(sp,i,blk); | |
1da177e4 | 2673 | |
20346722 | 2674 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
2675 | mac_control->rings[i].rx_curr_get_info.block_index = 0; | |
2676 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
2677 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
1da177e4 LT |
2678 | atomic_set(&sp->rx_bufs_left[i], 0); |
2679 | DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n", | |
2680 | dev->name, buf_cnt, i); | |
2681 | } | |
2682 | } | |
2683 | ||
2684 | /** | |
2685 | * s2io_poll - Rx interrupt handler for NAPI support | |
bea3348e | 2686 | * @napi : pointer to the napi structure. |
20346722 | 2687 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2688 | * during one pass through the 'Poll" function. |
2689 | * Description: | |
2690 | * Comes into picture only if NAPI support has been incorporated. It does | |
2691 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2692 | * also It will process only a given number of packets. | |
2693 | * Return value: | |
2694 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2695 | */ | |
2696 | ||
bea3348e | 2697 | static int s2io_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2698 | { |
bea3348e SH |
2699 | struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi); |
2700 | struct net_device *dev = nic->dev; | |
20346722 | 2701 | int pkt_cnt = 0, org_pkts_to_process; |
1ee6dd77 | 2702 | struct mac_info *mac_control; |
1da177e4 | 2703 | struct config_param *config; |
1ee6dd77 | 2704 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
20346722 | 2705 | int i; |
1da177e4 LT |
2706 | |
2707 | mac_control = &nic->mac_control; | |
2708 | config = &nic->config; | |
2709 | ||
bea3348e | 2710 | nic->pkts_to_process = budget; |
20346722 | 2711 | org_pkts_to_process = nic->pkts_to_process; |
1da177e4 | 2712 | |
19a60522 SS |
2713 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
2714 | readl(&bar0->rx_traffic_int); | |
1da177e4 LT |
2715 | |
2716 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 2717 | rx_intr_handler(&mac_control->rings[i]); |
2718 | pkt_cnt = org_pkts_to_process - nic->pkts_to_process; | |
2719 | if (!nic->pkts_to_process) { | |
2720 | /* Quota for the current iteration has been met */ | |
2721 | goto no_rx; | |
1da177e4 | 2722 | } |
1da177e4 | 2723 | } |
1da177e4 | 2724 | |
bea3348e | 2725 | netif_rx_complete(dev, napi); |
1da177e4 LT |
2726 | |
2727 | for (i = 0; i < config->rx_ring_num; i++) { | |
2728 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2729 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2730 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2731 | break; |
2732 | } | |
2733 | } | |
2734 | /* Re enable the Rx interrupts. */ | |
c92ca04b | 2735 | writeq(0x0, &bar0->rx_traffic_mask); |
19a60522 | 2736 | readl(&bar0->rx_traffic_mask); |
bea3348e | 2737 | return pkt_cnt; |
1da177e4 | 2738 | |
20346722 | 2739 | no_rx: |
1da177e4 LT |
2740 | for (i = 0; i < config->rx_ring_num; i++) { |
2741 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2742 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2743 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2744 | break; |
2745 | } | |
2746 | } | |
bea3348e | 2747 | return pkt_cnt; |
1da177e4 | 2748 | } |
20346722 | 2749 | |
b41477f3 | 2750 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2751 | /** |
b41477f3 | 2752 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2753 | * @dev : pointer to the device structure. |
2754 | * Description: | |
b41477f3 AR |
2755 | * This function will be called by upper layer to check for events on the |
2756 | * interface in situations where interrupts are disabled. It is used for | |
2757 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2758 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2759 | */ |
612eff0e BH |
2760 | static void s2io_netpoll(struct net_device *dev) |
2761 | { | |
1ee6dd77 RB |
2762 | struct s2io_nic *nic = dev->priv; |
2763 | struct mac_info *mac_control; | |
612eff0e | 2764 | struct config_param *config; |
1ee6dd77 | 2765 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2766 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e BH |
2767 | int i; |
2768 | ||
d796fdb7 LV |
2769 | if (pci_channel_offline(nic->pdev)) |
2770 | return; | |
2771 | ||
612eff0e BH |
2772 | disable_irq(dev->irq); |
2773 | ||
612eff0e BH |
2774 | mac_control = &nic->mac_control; |
2775 | config = &nic->config; | |
2776 | ||
612eff0e | 2777 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2778 | writeq(val64, &bar0->tx_traffic_int); |
2779 | ||
6aa20a22 | 2780 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2781 | * run out of skbs and will fail and eventually netpoll application such |
2782 | * as netdump will fail. | |
2783 | */ | |
2784 | for (i = 0; i < config->tx_fifo_num; i++) | |
2785 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2786 | |
b41477f3 | 2787 | /* check for received packet and indicate up to network */ |
612eff0e BH |
2788 | for (i = 0; i < config->rx_ring_num; i++) |
2789 | rx_intr_handler(&mac_control->rings[i]); | |
2790 | ||
2791 | for (i = 0; i < config->rx_ring_num; i++) { | |
2792 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2793 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2794 | DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n"); | |
612eff0e BH |
2795 | break; |
2796 | } | |
2797 | } | |
612eff0e BH |
2798 | enable_irq(dev->irq); |
2799 | return; | |
2800 | } | |
2801 | #endif | |
2802 | ||
20346722 | 2803 | /** |
1da177e4 LT |
2804 | * rx_intr_handler - Rx interrupt handler |
2805 | * @nic: device private variable. | |
20346722 | 2806 | * Description: |
2807 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2808 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 | 2809 | * called. It picks out the RxD at which place the last Rx processing had |
2810 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2811 | * the offset. |
2812 | * Return Value: | |
2813 | * NONE. | |
2814 | */ | |
1ee6dd77 | 2815 | static void rx_intr_handler(struct ring_info *ring_data) |
1da177e4 | 2816 | { |
1ee6dd77 | 2817 | struct s2io_nic *nic = ring_data->nic; |
1da177e4 | 2818 | struct net_device *dev = (struct net_device *) nic->dev; |
da6971d8 | 2819 | int get_block, put_block, put_offset; |
1ee6dd77 RB |
2820 | struct rx_curr_get_info get_info, put_info; |
2821 | struct RxD_t *rxdp; | |
1da177e4 | 2822 | struct sk_buff *skb; |
20346722 | 2823 | int pkt_cnt = 0; |
7d3d0439 | 2824 | int i; |
6d517a27 VP |
2825 | struct RxD1* rxdp1; |
2826 | struct RxD3* rxdp3; | |
7d3d0439 | 2827 | |
7ba013ac | 2828 | spin_lock(&nic->rx_lock); |
7ba013ac | 2829 | |
20346722 | 2830 | get_info = ring_data->rx_curr_get_info; |
2831 | get_block = get_info.block_index; | |
1ee6dd77 | 2832 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2833 | put_block = put_info.block_index; |
da6971d8 | 2834 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 SS |
2835 | if (!napi) { |
2836 | spin_lock(&nic->put_lock); | |
2837 | put_offset = ring_data->put_pos; | |
2838 | spin_unlock(&nic->put_lock); | |
2839 | } else | |
2840 | put_offset = ring_data->put_pos; | |
2841 | ||
da6971d8 | 2842 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2843 | /* |
2844 | * If your are next to put index then it's | |
2845 | * FIFO full condition | |
2846 | */ | |
da6971d8 AR |
2847 | if ((get_block == put_block) && |
2848 | (get_info.offset + 1) == put_info.offset) { | |
75c30b13 | 2849 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); |
da6971d8 AR |
2850 | break; |
2851 | } | |
20346722 | 2852 | skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); |
2853 | if (skb == NULL) { | |
2854 | DBG_PRINT(ERR_DBG, "%s: The skb is ", | |
2855 | dev->name); | |
2856 | DBG_PRINT(ERR_DBG, "Null in Rx Intr\n"); | |
7ba013ac | 2857 | spin_unlock(&nic->rx_lock); |
20346722 | 2858 | return; |
1da177e4 | 2859 | } |
da6971d8 | 2860 | if (nic->rxd_mode == RXD_MODE_1) { |
6d517a27 | 2861 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2862 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2863 | rxdp1->Buffer0_ptr, |
2864 | dev->mtu + | |
2865 | HEADER_ETHERNET_II_802_3_SIZE + | |
2866 | HEADER_802_2_SIZE + | |
2867 | HEADER_SNAP_SIZE, | |
2868 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2869 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2870 | rxdp3 = (struct RxD3*)rxdp; |
75c30b13 | 2871 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2872 | rxdp3->Buffer0_ptr, |
2873 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
da6971d8 | 2874 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2875 | rxdp3->Buffer2_ptr, |
2876 | dev->mtu + 4, | |
2877 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2878 | } |
863c11a9 | 2879 | prefetch(skb->data); |
20346722 | 2880 | rx_osm_handler(ring_data, rxdp); |
2881 | get_info.offset++; | |
da6971d8 AR |
2882 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2883 | rxdp = ring_data->rx_blocks[get_block]. | |
2884 | rxds[get_info.offset].virt_addr; | |
2885 | if (get_info.offset == rxd_count[nic->rxd_mode]) { | |
20346722 | 2886 | get_info.offset = 0; |
da6971d8 | 2887 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2888 | get_block++; |
da6971d8 AR |
2889 | if (get_block == ring_data->block_count) |
2890 | get_block = 0; | |
2891 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 | 2892 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2893 | } | |
1da177e4 | 2894 | |
20346722 | 2895 | nic->pkts_to_process -= 1; |
db874e65 | 2896 | if ((napi) && (!nic->pkts_to_process)) |
20346722 | 2897 | break; |
20346722 | 2898 | pkt_cnt++; |
1da177e4 LT |
2899 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2900 | break; | |
2901 | } | |
7d3d0439 RA |
2902 | if (nic->lro) { |
2903 | /* Clear all LRO sessions before exiting */ | |
2904 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 2905 | struct lro *lro = &nic->lro0_n[i]; |
7d3d0439 RA |
2906 | if (lro->in_use) { |
2907 | update_L3L4_header(nic, lro); | |
2908 | queue_rx_frame(lro->parent); | |
2909 | clear_lro_session(lro); | |
2910 | } | |
2911 | } | |
2912 | } | |
2913 | ||
7ba013ac | 2914 | spin_unlock(&nic->rx_lock); |
1da177e4 | 2915 | } |
20346722 | 2916 | |
2917 | /** | |
1da177e4 LT |
2918 | * tx_intr_handler - Transmit interrupt handler |
2919 | * @nic : device private variable | |
20346722 | 2920 | * Description: |
2921 | * If an interrupt was raised to indicate DMA complete of the | |
2922 | * Tx packet, this function is called. It identifies the last TxD | |
2923 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
2924 | * DMA'ed into the NICs internal memory. |
2925 | * Return Value: | |
2926 | * NONE | |
2927 | */ | |
2928 | ||
1ee6dd77 | 2929 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 2930 | { |
1ee6dd77 | 2931 | struct s2io_nic *nic = fifo_data->nic; |
1da177e4 | 2932 | struct net_device *dev = (struct net_device *) nic->dev; |
1ee6dd77 | 2933 | struct tx_curr_get_info get_info, put_info; |
1da177e4 | 2934 | struct sk_buff *skb; |
1ee6dd77 | 2935 | struct TxD *txdlp; |
f9046eb3 | 2936 | u8 err_mask; |
1da177e4 | 2937 | |
20346722 | 2938 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 RB |
2939 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
2940 | txdlp = (struct TxD *) fifo_data->list_info[get_info.offset]. | |
20346722 | 2941 | list_virt_addr; |
2942 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && | |
2943 | (get_info.offset != put_info.offset) && | |
2944 | (txdlp->Host_Control)) { | |
2945 | /* Check for TxD errors */ | |
2946 | if (txdlp->Control_1 & TXD_T_CODE) { | |
2947 | unsigned long long err; | |
2948 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 AR |
2949 | if (err & 0x1) { |
2950 | nic->mac_control.stats_info->sw_stat. | |
2951 | parity_err_cnt++; | |
2952 | } | |
491976b2 SH |
2953 | |
2954 | /* update t_code statistics */ | |
f9046eb3 OH |
2955 | err_mask = err >> 48; |
2956 | switch(err_mask) { | |
491976b2 SH |
2957 | case 2: |
2958 | nic->mac_control.stats_info->sw_stat. | |
2959 | tx_buf_abort_cnt++; | |
2960 | break; | |
2961 | ||
2962 | case 3: | |
2963 | nic->mac_control.stats_info->sw_stat. | |
2964 | tx_desc_abort_cnt++; | |
2965 | break; | |
2966 | ||
2967 | case 7: | |
2968 | nic->mac_control.stats_info->sw_stat. | |
2969 | tx_parity_err_cnt++; | |
2970 | break; | |
2971 | ||
2972 | case 10: | |
2973 | nic->mac_control.stats_info->sw_stat. | |
2974 | tx_link_loss_cnt++; | |
2975 | break; | |
2976 | ||
2977 | case 15: | |
2978 | nic->mac_control.stats_info->sw_stat. | |
2979 | tx_list_proc_err_cnt++; | |
2980 | break; | |
2981 | } | |
20346722 | 2982 | } |
1da177e4 | 2983 | |
fed5eccd | 2984 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 | 2985 | if (skb == NULL) { |
2986 | DBG_PRINT(ERR_DBG, "%s: Null skb ", | |
2987 | __FUNCTION__); | |
2988 | DBG_PRINT(ERR_DBG, "in Tx Free Intr\n"); | |
2989 | return; | |
2990 | } | |
2991 | ||
20346722 | 2992 | /* Updating the statistics block */ |
20346722 | 2993 | nic->stats.tx_bytes += skb->len; |
491976b2 | 2994 | nic->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
20346722 | 2995 | dev_kfree_skb_irq(skb); |
2996 | ||
2997 | get_info.offset++; | |
863c11a9 AR |
2998 | if (get_info.offset == get_info.fifo_len + 1) |
2999 | get_info.offset = 0; | |
1ee6dd77 | 3000 | txdlp = (struct TxD *) fifo_data->list_info |
20346722 | 3001 | [get_info.offset].list_virt_addr; |
3002 | fifo_data->tx_curr_get_info.offset = | |
3003 | get_info.offset; | |
1da177e4 LT |
3004 | } |
3005 | ||
3006 | spin_lock(&nic->tx_lock); | |
3007 | if (netif_queue_stopped(dev)) | |
3008 | netif_wake_queue(dev); | |
3009 | spin_unlock(&nic->tx_lock); | |
3010 | } | |
3011 | ||
bd1034f0 AR |
3012 | /** |
3013 | * s2io_mdio_write - Function to write in to MDIO registers | |
3014 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3015 | * @addr : address value | |
3016 | * @value : data value | |
3017 | * @dev : pointer to net_device structure | |
3018 | * Description: | |
3019 | * This function is used to write values to the MDIO registers | |
3020 | * NONE | |
3021 | */ | |
3022 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev) | |
3023 | { | |
3024 | u64 val64 = 0x0; | |
1ee6dd77 RB |
3025 | struct s2io_nic *sp = dev->priv; |
3026 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
3027 | |
3028 | //address transaction | |
3029 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
3030 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3031 | | MDIO_MMS_PRT_ADDR(0x0); | |
3032 | writeq(val64, &bar0->mdio_control); | |
3033 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3034 | writeq(val64, &bar0->mdio_control); | |
3035 | udelay(100); | |
3036 | ||
3037 | //Data transaction | |
3038 | val64 = 0x0; | |
3039 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
3040 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3041 | | MDIO_MMS_PRT_ADDR(0x0) | |
3042 | | MDIO_MDIO_DATA(value) | |
3043 | | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
3044 | writeq(val64, &bar0->mdio_control); | |
3045 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3046 | writeq(val64, &bar0->mdio_control); | |
3047 | udelay(100); | |
3048 | ||
3049 | val64 = 0x0; | |
3050 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
3051 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3052 | | MDIO_MMS_PRT_ADDR(0x0) | |
3053 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
3054 | writeq(val64, &bar0->mdio_control); | |
3055 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3056 | writeq(val64, &bar0->mdio_control); | |
3057 | udelay(100); | |
3058 | ||
3059 | } | |
3060 | ||
3061 | /** | |
3062 | * s2io_mdio_read - Function to write in to MDIO registers | |
3063 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
3064 | * @addr : address value | |
3065 | * @dev : pointer to net_device structure | |
3066 | * Description: | |
3067 | * This function is used to read values to the MDIO registers | |
3068 | * NONE | |
3069 | */ | |
3070 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
3071 | { | |
3072 | u64 val64 = 0x0; | |
3073 | u64 rval64 = 0x0; | |
1ee6dd77 RB |
3074 | struct s2io_nic *sp = dev->priv; |
3075 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
3076 | |
3077 | /* address transaction */ | |
3078 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
3079 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3080 | | MDIO_MMS_PRT_ADDR(0x0); | |
3081 | writeq(val64, &bar0->mdio_control); | |
3082 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3083 | writeq(val64, &bar0->mdio_control); | |
3084 | udelay(100); | |
3085 | ||
3086 | /* Data transaction */ | |
3087 | val64 = 0x0; | |
3088 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
3089 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
3090 | | MDIO_MMS_PRT_ADDR(0x0) | |
3091 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
3092 | writeq(val64, &bar0->mdio_control); | |
3093 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
3094 | writeq(val64, &bar0->mdio_control); | |
3095 | udelay(100); | |
3096 | ||
3097 | /* Read the value from regs */ | |
3098 | rval64 = readq(&bar0->mdio_control); | |
3099 | rval64 = rval64 & 0xFFFF0000; | |
3100 | rval64 = rval64 >> 16; | |
3101 | return rval64; | |
3102 | } | |
3103 | /** | |
3104 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
3105 | * @counter : couter value to be updated | |
3106 | * @flag : flag to indicate the status | |
3107 | * @type : counter type | |
3108 | * Description: | |
3109 | * This function is to check the status of the xpak counters value | |
3110 | * NONE | |
3111 | */ | |
3112 | ||
3113 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type) | |
3114 | { | |
3115 | u64 mask = 0x3; | |
3116 | u64 val64; | |
3117 | int i; | |
3118 | for(i = 0; i <index; i++) | |
3119 | mask = mask << 0x2; | |
3120 | ||
3121 | if(flag > 0) | |
3122 | { | |
3123 | *counter = *counter + 1; | |
3124 | val64 = *regs_stat & mask; | |
3125 | val64 = val64 >> (index * 0x2); | |
3126 | val64 = val64 + 1; | |
3127 | if(val64 == 3) | |
3128 | { | |
3129 | switch(type) | |
3130 | { | |
3131 | case 1: | |
3132 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3133 | "service. Excessive temperatures may " | |
3134 | "result in premature transceiver " | |
3135 | "failure \n"); | |
3136 | break; | |
3137 | case 2: | |
3138 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3139 | "service Excessive bias currents may " | |
3140 | "indicate imminent laser diode " | |
3141 | "failure \n"); | |
3142 | break; | |
3143 | case 3: | |
3144 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3145 | "service Excessive laser output " | |
3146 | "power may saturate far-end " | |
3147 | "receiver\n"); | |
3148 | break; | |
3149 | default: | |
3150 | DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm " | |
3151 | "type \n"); | |
3152 | } | |
3153 | val64 = 0x0; | |
3154 | } | |
3155 | val64 = val64 << (index * 0x2); | |
3156 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3157 | ||
3158 | } else { | |
3159 | *regs_stat = *regs_stat & (~mask); | |
3160 | } | |
3161 | } | |
3162 | ||
3163 | /** | |
3164 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3165 | * @dev : pointer to net_device struct | |
3166 | * Description: | |
3167 | * This function is to upate the status of the xpak counters value | |
3168 | * NONE | |
3169 | */ | |
3170 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3171 | { | |
3172 | u16 flag = 0x0; | |
3173 | u16 type = 0x0; | |
3174 | u16 val16 = 0x0; | |
3175 | u64 val64 = 0x0; | |
3176 | u64 addr = 0x0; | |
3177 | ||
1ee6dd77 RB |
3178 | struct s2io_nic *sp = dev->priv; |
3179 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
bd1034f0 AR |
3180 | |
3181 | /* Check the communication with the MDIO slave */ | |
3182 | addr = 0x0000; | |
3183 | val64 = 0x0; | |
3184 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3185 | if((val64 == 0xFFFF) || (val64 == 0x0000)) | |
3186 | { | |
3187 | DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - " | |
3188 | "Returned %llx\n", (unsigned long long)val64); | |
3189 | return; | |
3190 | } | |
3191 | ||
3192 | /* Check for the expecte value of 2040 at PMA address 0x0000 */ | |
3193 | if(val64 != 0x2040) | |
3194 | { | |
3195 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "); | |
3196 | DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n", | |
3197 | (unsigned long long)val64); | |
3198 | return; | |
3199 | } | |
3200 | ||
3201 | /* Loading the DOM register to MDIO register */ | |
3202 | addr = 0xA100; | |
3203 | s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev); | |
3204 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3205 | ||
3206 | /* Reading the Alarm flags */ | |
3207 | addr = 0xA070; | |
3208 | val64 = 0x0; | |
3209 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3210 | ||
3211 | flag = CHECKBIT(val64, 0x7); | |
3212 | type = 1; | |
3213 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high, | |
3214 | &stat_info->xpak_stat.xpak_regs_stat, | |
3215 | 0x0, flag, type); | |
3216 | ||
3217 | if(CHECKBIT(val64, 0x6)) | |
3218 | stat_info->xpak_stat.alarm_transceiver_temp_low++; | |
3219 | ||
3220 | flag = CHECKBIT(val64, 0x3); | |
3221 | type = 2; | |
3222 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high, | |
3223 | &stat_info->xpak_stat.xpak_regs_stat, | |
3224 | 0x2, flag, type); | |
3225 | ||
3226 | if(CHECKBIT(val64, 0x2)) | |
3227 | stat_info->xpak_stat.alarm_laser_bias_current_low++; | |
3228 | ||
3229 | flag = CHECKBIT(val64, 0x1); | |
3230 | type = 3; | |
3231 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high, | |
3232 | &stat_info->xpak_stat.xpak_regs_stat, | |
3233 | 0x4, flag, type); | |
3234 | ||
3235 | if(CHECKBIT(val64, 0x0)) | |
3236 | stat_info->xpak_stat.alarm_laser_output_power_low++; | |
3237 | ||
3238 | /* Reading the Warning flags */ | |
3239 | addr = 0xA074; | |
3240 | val64 = 0x0; | |
3241 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3242 | ||
3243 | if(CHECKBIT(val64, 0x7)) | |
3244 | stat_info->xpak_stat.warn_transceiver_temp_high++; | |
3245 | ||
3246 | if(CHECKBIT(val64, 0x6)) | |
3247 | stat_info->xpak_stat.warn_transceiver_temp_low++; | |
3248 | ||
3249 | if(CHECKBIT(val64, 0x3)) | |
3250 | stat_info->xpak_stat.warn_laser_bias_current_high++; | |
3251 | ||
3252 | if(CHECKBIT(val64, 0x2)) | |
3253 | stat_info->xpak_stat.warn_laser_bias_current_low++; | |
3254 | ||
3255 | if(CHECKBIT(val64, 0x1)) | |
3256 | stat_info->xpak_stat.warn_laser_output_power_high++; | |
3257 | ||
3258 | if(CHECKBIT(val64, 0x0)) | |
3259 | stat_info->xpak_stat.warn_laser_output_power_low++; | |
3260 | } | |
3261 | ||
20346722 | 3262 | /** |
1da177e4 | 3263 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3264 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3265 | * s2io_nic structure. |
20346722 | 3266 | * Description: Function that waits for a command to Write into RMAC |
3267 | * ADDR DATA registers to be completed and returns either success or | |
3268 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3269 | * Return value: |
3270 | * SUCCESS on success and FAILURE on failure. | |
3271 | */ | |
3272 | ||
9fc93a41 SS |
3273 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, |
3274 | int bit_state) | |
1da177e4 | 3275 | { |
9fc93a41 | 3276 | int ret = FAILURE, cnt = 0, delay = 1; |
1da177e4 LT |
3277 | u64 val64; |
3278 | ||
9fc93a41 SS |
3279 | if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET)) |
3280 | return FAILURE; | |
3281 | ||
3282 | do { | |
c92ca04b | 3283 | val64 = readq(addr); |
9fc93a41 SS |
3284 | if (bit_state == S2IO_BIT_RESET) { |
3285 | if (!(val64 & busy_bit)) { | |
3286 | ret = SUCCESS; | |
3287 | break; | |
3288 | } | |
3289 | } else { | |
3290 | if (!(val64 & busy_bit)) { | |
3291 | ret = SUCCESS; | |
3292 | break; | |
3293 | } | |
1da177e4 | 3294 | } |
c92ca04b AR |
3295 | |
3296 | if(in_interrupt()) | |
9fc93a41 | 3297 | mdelay(delay); |
c92ca04b | 3298 | else |
9fc93a41 | 3299 | msleep(delay); |
c92ca04b | 3300 | |
9fc93a41 SS |
3301 | if (++cnt >= 10) |
3302 | delay = 50; | |
3303 | } while (cnt < 20); | |
1da177e4 LT |
3304 | return ret; |
3305 | } | |
19a60522 SS |
3306 | /* |
3307 | * check_pci_device_id - Checks if the device id is supported | |
3308 | * @id : device id | |
3309 | * Description: Function to check if the pci device id is supported by driver. | |
3310 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3311 | */ | |
3312 | static u16 check_pci_device_id(u16 id) | |
3313 | { | |
3314 | switch (id) { | |
3315 | case PCI_DEVICE_ID_HERC_WIN: | |
3316 | case PCI_DEVICE_ID_HERC_UNI: | |
3317 | return XFRAME_II_DEVICE; | |
3318 | case PCI_DEVICE_ID_S2IO_UNI: | |
3319 | case PCI_DEVICE_ID_S2IO_WIN: | |
3320 | return XFRAME_I_DEVICE; | |
3321 | default: | |
3322 | return PCI_ANY_ID; | |
3323 | } | |
3324 | } | |
1da177e4 | 3325 | |
20346722 | 3326 | /** |
3327 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3328 | * @sp : private member of the device structure. |
3329 | * Description: Function to Reset the card. This function then also | |
20346722 | 3330 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3331 | * the card reset also resets the configuration space. |
3332 | * Return value: | |
3333 | * void. | |
3334 | */ | |
3335 | ||
1ee6dd77 | 3336 | static void s2io_reset(struct s2io_nic * sp) |
1da177e4 | 3337 | { |
1ee6dd77 | 3338 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3339 | u64 val64; |
5e25b9dd | 3340 | u16 subid, pci_cmd; |
19a60522 SS |
3341 | int i; |
3342 | u16 val16; | |
491976b2 SH |
3343 | unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt; |
3344 | unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt; | |
3345 | ||
19a60522 SS |
3346 | DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n", |
3347 | __FUNCTION__, sp->dev->name); | |
1da177e4 | 3348 | |
0b1f7ebe | 3349 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3350 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3351 | |
1da177e4 LT |
3352 | val64 = SW_RESET_ALL; |
3353 | writeq(val64, &bar0->sw_reset); | |
c92ca04b AR |
3354 | if (strstr(sp->product_name, "CX4")) { |
3355 | msleep(750); | |
3356 | } | |
19a60522 SS |
3357 | msleep(250); |
3358 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3359 | |
19a60522 SS |
3360 | /* Restore the PCI state saved during initialization. */ |
3361 | pci_restore_state(sp->pdev); | |
3362 | pci_read_config_word(sp->pdev, 0x2, &val16); | |
3363 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3364 | break; | |
3365 | msleep(200); | |
3366 | } | |
1da177e4 | 3367 | |
19a60522 SS |
3368 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) { |
3369 | DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__); | |
3370 | } | |
3371 | ||
3372 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3373 | ||
3374 | s2io_init_pci(sp); | |
1da177e4 | 3375 | |
20346722 | 3376 | /* Set swapper to enable I/O register access */ |
3377 | s2io_set_swapper(sp); | |
3378 | ||
cc6e7c44 RA |
3379 | /* Restore the MSIX table entries from local variables */ |
3380 | restore_xmsi_data(sp); | |
3381 | ||
5e25b9dd | 3382 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3383 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3384 | /* Clear "detected parity error" bit */ |
303bcb4b | 3385 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3386 | |
303bcb4b | 3387 | /* Clearing PCIX Ecc status register */ |
3388 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3389 | |
303bcb4b | 3390 | /* Clearing PCI_STATUS error reflected here */ |
b7b5a128 | 3391 | writeq(s2BIT(62), &bar0->txpic_int_reg); |
303bcb4b | 3392 | } |
5e25b9dd | 3393 | |
20346722 | 3394 | /* Reset device statistics maintained by OS */ |
3395 | memset(&sp->stats, 0, sizeof (struct net_device_stats)); | |
8a4bdbaa | 3396 | |
491976b2 SH |
3397 | up_cnt = sp->mac_control.stats_info->sw_stat.link_up_cnt; |
3398 | down_cnt = sp->mac_control.stats_info->sw_stat.link_down_cnt; | |
3399 | up_time = sp->mac_control.stats_info->sw_stat.link_up_time; | |
3400 | down_time = sp->mac_control.stats_info->sw_stat.link_down_time; | |
363dc367 | 3401 | reset_cnt = sp->mac_control.stats_info->sw_stat.soft_reset_cnt; |
491976b2 SH |
3402 | mem_alloc_cnt = sp->mac_control.stats_info->sw_stat.mem_allocated; |
3403 | mem_free_cnt = sp->mac_control.stats_info->sw_stat.mem_freed; | |
3404 | watchdog_cnt = sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt; | |
3405 | /* save link up/down time/cnt, reset/memory/watchdog cnt */ | |
363dc367 | 3406 | memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block)); |
491976b2 SH |
3407 | /* restore link up/down time/cnt, reset/memory/watchdog cnt */ |
3408 | sp->mac_control.stats_info->sw_stat.link_up_cnt = up_cnt; | |
3409 | sp->mac_control.stats_info->sw_stat.link_down_cnt = down_cnt; | |
3410 | sp->mac_control.stats_info->sw_stat.link_up_time = up_time; | |
3411 | sp->mac_control.stats_info->sw_stat.link_down_time = down_time; | |
363dc367 | 3412 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt = reset_cnt; |
491976b2 SH |
3413 | sp->mac_control.stats_info->sw_stat.mem_allocated = mem_alloc_cnt; |
3414 | sp->mac_control.stats_info->sw_stat.mem_freed = mem_free_cnt; | |
3415 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt = watchdog_cnt; | |
20346722 | 3416 | |
1da177e4 LT |
3417 | /* SXE-002: Configure link and activity LED to turn it off */ |
3418 | subid = sp->pdev->subsystem_device; | |
541ae68f | 3419 | if (((subid & 0xFF) >= 0x07) && |
3420 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3421 | val64 = readq(&bar0->gpio_control); |
3422 | val64 |= 0x0000800000000000ULL; | |
3423 | writeq(val64, &bar0->gpio_control); | |
3424 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3425 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3426 | } |
3427 | ||
541ae68f | 3428 | /* |
3429 | * Clear spurious ECC interrupts that would have occured on | |
3430 | * XFRAME II cards after reset. | |
3431 | */ | |
3432 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3433 | val64 = readq(&bar0->pcc_err_reg); | |
3434 | writeq(val64, &bar0->pcc_err_reg); | |
3435 | } | |
3436 | ||
d8d70caf | 3437 | /* restore the previously assigned mac address */ |
2fd37688 | 3438 | do_s2io_prog_unicast(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr); |
d8d70caf | 3439 | |
1da177e4 LT |
3440 | sp->device_enabled_once = FALSE; |
3441 | } | |
3442 | ||
3443 | /** | |
20346722 | 3444 | * s2io_set_swapper - to set the swapper controle on the card |
3445 | * @sp : private member of the device structure, | |
1da177e4 | 3446 | * pointer to the s2io_nic structure. |
20346722 | 3447 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3448 | * correctly depending on the 'endianness' of the system. |
3449 | * Return value: | |
3450 | * SUCCESS on success and FAILURE on failure. | |
3451 | */ | |
3452 | ||
1ee6dd77 | 3453 | static int s2io_set_swapper(struct s2io_nic * sp) |
1da177e4 LT |
3454 | { |
3455 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3456 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3457 | u64 val64, valt, valr; |
3458 | ||
20346722 | 3459 | /* |
1da177e4 LT |
3460 | * Set proper endian settings and verify the same by reading |
3461 | * the PIF Feed-back register. | |
3462 | */ | |
3463 | ||
3464 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3465 | if (val64 != 0x0123456789ABCDEFULL) { | |
3466 | int i = 0; | |
3467 | u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3468 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3469 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3470 | 0}; /* FE=0, SE=0 */ | |
3471 | ||
3472 | while(i<4) { | |
3473 | writeq(value[i], &bar0->swapper_ctrl); | |
3474 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3475 | if (val64 == 0x0123456789ABCDEFULL) | |
3476 | break; | |
3477 | i++; | |
3478 | } | |
3479 | if (i == 4) { | |
3480 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3481 | dev->name); | |
3482 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3483 | (unsigned long long) val64); | |
3484 | return FAILURE; | |
3485 | } | |
3486 | valr = value[i]; | |
3487 | } else { | |
3488 | valr = readq(&bar0->swapper_ctrl); | |
3489 | } | |
3490 | ||
3491 | valt = 0x0123456789ABCDEFULL; | |
3492 | writeq(valt, &bar0->xmsi_address); | |
3493 | val64 = readq(&bar0->xmsi_address); | |
3494 | ||
3495 | if(val64 != valt) { | |
3496 | int i = 0; | |
3497 | u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3498 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3499 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3500 | 0}; /* FE=0, SE=0 */ | |
3501 | ||
3502 | while(i<4) { | |
3503 | writeq((value[i] | valr), &bar0->swapper_ctrl); | |
3504 | writeq(valt, &bar0->xmsi_address); | |
3505 | val64 = readq(&bar0->xmsi_address); | |
3506 | if(val64 == valt) | |
3507 | break; | |
3508 | i++; | |
3509 | } | |
3510 | if(i == 4) { | |
20346722 | 3511 | unsigned long long x = val64; |
1da177e4 | 3512 | DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr "); |
20346722 | 3513 | DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x); |
1da177e4 LT |
3514 | return FAILURE; |
3515 | } | |
3516 | } | |
3517 | val64 = readq(&bar0->swapper_ctrl); | |
3518 | val64 &= 0xFFFF000000000000ULL; | |
3519 | ||
3520 | #ifdef __BIG_ENDIAN | |
20346722 | 3521 | /* |
3522 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3523 | * big endian driver need not set anything. |
3524 | */ | |
3525 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3526 | SWAPPER_CTRL_TXP_SE | | |
3527 | SWAPPER_CTRL_TXD_R_FE | | |
3528 | SWAPPER_CTRL_TXD_W_FE | | |
3529 | SWAPPER_CTRL_TXF_R_FE | | |
3530 | SWAPPER_CTRL_RXD_R_FE | | |
3531 | SWAPPER_CTRL_RXD_W_FE | | |
3532 | SWAPPER_CTRL_RXF_W_FE | | |
3533 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3534 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
eaae7f72 | 3535 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3536 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3537 | writeq(val64, &bar0->swapper_ctrl); |
3538 | #else | |
20346722 | 3539 | /* |
1da177e4 | 3540 | * Initially we enable all bits to make it accessible by the |
20346722 | 3541 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3542 | * we want to set. |
3543 | */ | |
3544 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3545 | SWAPPER_CTRL_TXP_SE | | |
3546 | SWAPPER_CTRL_TXD_R_FE | | |
3547 | SWAPPER_CTRL_TXD_R_SE | | |
3548 | SWAPPER_CTRL_TXD_W_FE | | |
3549 | SWAPPER_CTRL_TXD_W_SE | | |
3550 | SWAPPER_CTRL_TXF_R_FE | | |
3551 | SWAPPER_CTRL_RXD_R_FE | | |
3552 | SWAPPER_CTRL_RXD_R_SE | | |
3553 | SWAPPER_CTRL_RXD_W_FE | | |
3554 | SWAPPER_CTRL_RXD_W_SE | | |
3555 | SWAPPER_CTRL_RXF_W_FE | | |
3556 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3557 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
eaae7f72 | 3558 | if (sp->config.intr_type == INTA) |
cc6e7c44 | 3559 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3560 | writeq(val64, &bar0->swapper_ctrl); |
3561 | #endif | |
3562 | val64 = readq(&bar0->swapper_ctrl); | |
3563 | ||
20346722 | 3564 | /* |
3565 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3566 | * feedback register. |
3567 | */ | |
3568 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3569 | if (val64 != 0x0123456789ABCDEFULL) { | |
3570 | /* Endian settings are incorrect, calls for another dekko. */ | |
3571 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3572 | dev->name); | |
3573 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3574 | (unsigned long long) val64); | |
3575 | return FAILURE; | |
3576 | } | |
3577 | ||
3578 | return SUCCESS; | |
3579 | } | |
3580 | ||
1ee6dd77 | 3581 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3582 | { |
1ee6dd77 | 3583 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3584 | u64 val64; |
3585 | int ret = 0, cnt = 0; | |
3586 | ||
3587 | do { | |
3588 | val64 = readq(&bar0->xmsi_access); | |
b7b5a128 | 3589 | if (!(val64 & s2BIT(15))) |
cc6e7c44 RA |
3590 | break; |
3591 | mdelay(1); | |
3592 | cnt++; | |
3593 | } while(cnt < 5); | |
3594 | if (cnt == 5) { | |
3595 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3596 | ret = 1; | |
3597 | } | |
3598 | ||
3599 | return ret; | |
3600 | } | |
3601 | ||
1ee6dd77 | 3602 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3603 | { |
1ee6dd77 | 3604 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3605 | u64 val64; |
3606 | int i; | |
3607 | ||
75c30b13 | 3608 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3609 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3610 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
b7b5a128 | 3611 | val64 = (s2BIT(7) | s2BIT(15) | vBIT(i, 26, 6)); |
cc6e7c44 RA |
3612 | writeq(val64, &bar0->xmsi_access); |
3613 | if (wait_for_msix_trans(nic, i)) { | |
3614 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3615 | continue; | |
3616 | } | |
3617 | } | |
3618 | } | |
3619 | ||
1ee6dd77 | 3620 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3621 | { |
1ee6dd77 | 3622 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3623 | u64 val64, addr, data; |
3624 | int i; | |
3625 | ||
3626 | /* Store and display */ | |
75c30b13 | 3627 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
b7b5a128 | 3628 | val64 = (s2BIT(15) | vBIT(i, 26, 6)); |
cc6e7c44 RA |
3629 | writeq(val64, &bar0->xmsi_access); |
3630 | if (wait_for_msix_trans(nic, i)) { | |
3631 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3632 | continue; | |
3633 | } | |
3634 | addr = readq(&bar0->xmsi_address); | |
3635 | data = readq(&bar0->xmsi_data); | |
3636 | if (addr && data) { | |
3637 | nic->msix_info[i].addr = addr; | |
3638 | nic->msix_info[i].data = data; | |
3639 | } | |
3640 | } | |
3641 | } | |
3642 | ||
1ee6dd77 | 3643 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3644 | { |
1ee6dd77 | 3645 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3646 | u64 tx_mat, rx_mat; |
3647 | u16 msi_control; /* Temp variable */ | |
3648 | int ret, i, j, msix_indx = 1; | |
3649 | ||
bd684e43 | 3650 | nic->entries = kcalloc(MAX_REQUESTED_MSI_X, sizeof(struct msix_entry), |
cc6e7c44 | 3651 | GFP_KERNEL); |
bd684e43 | 3652 | if (!nic->entries) { |
491976b2 SH |
3653 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", \ |
3654 | __FUNCTION__); | |
c53d4945 | 3655 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 RA |
3656 | return -ENOMEM; |
3657 | } | |
8a4bdbaa | 3658 | nic->mac_control.stats_info->sw_stat.mem_allocated |
491976b2 | 3659 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); |
cc6e7c44 RA |
3660 | |
3661 | nic->s2io_entries = | |
bd684e43 | 3662 | kcalloc(MAX_REQUESTED_MSI_X, sizeof(struct s2io_msix_entry), |
cc6e7c44 | 3663 | GFP_KERNEL); |
bd684e43 | 3664 | if (!nic->s2io_entries) { |
8a4bdbaa | 3665 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
491976b2 | 3666 | __FUNCTION__); |
c53d4945 | 3667 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 | 3668 | kfree(nic->entries); |
8a4bdbaa | 3669 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 3670 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); |
cc6e7c44 RA |
3671 | return -ENOMEM; |
3672 | } | |
8a4bdbaa | 3673 | nic->mac_control.stats_info->sw_stat.mem_allocated |
491976b2 | 3674 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); |
cc6e7c44 RA |
3675 | |
3676 | for (i=0; i< MAX_REQUESTED_MSI_X; i++) { | |
3677 | nic->entries[i].entry = i; | |
3678 | nic->s2io_entries[i].entry = i; | |
3679 | nic->s2io_entries[i].arg = NULL; | |
3680 | nic->s2io_entries[i].in_use = 0; | |
3681 | } | |
3682 | ||
3683 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3684 | for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) { | |
3685 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3686 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i]; | |
3687 | nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE; | |
3688 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3689 | } | |
3690 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3691 | ||
8a4bdbaa SS |
3692 | rx_mat = readq(&bar0->rx_mat); |
3693 | for (j = 0; j < nic->config.rx_ring_num; j++, msix_indx++) { | |
3694 | rx_mat |= RX_MAT_SET(j, msix_indx); | |
3695 | nic->s2io_entries[msix_indx].arg | |
3696 | = &nic->mac_control.rings[j]; | |
3697 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; | |
3698 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
cc6e7c44 | 3699 | } |
8a4bdbaa | 3700 | writeq(rx_mat, &bar0->rx_mat); |
cc6e7c44 | 3701 | |
c92ca04b | 3702 | nic->avail_msix_vectors = 0; |
cc6e7c44 | 3703 | ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X); |
c92ca04b AR |
3704 | /* We fail init if error or we get less vectors than min required */ |
3705 | if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) { | |
3706 | nic->avail_msix_vectors = ret; | |
3707 | ret = pci_enable_msix(nic->pdev, nic->entries, ret); | |
3708 | } | |
cc6e7c44 RA |
3709 | if (ret) { |
3710 | DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name); | |
3711 | kfree(nic->entries); | |
8a4bdbaa | 3712 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 3713 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); |
cc6e7c44 | 3714 | kfree(nic->s2io_entries); |
8a4bdbaa | 3715 | nic->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 3716 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); |
cc6e7c44 RA |
3717 | nic->entries = NULL; |
3718 | nic->s2io_entries = NULL; | |
c92ca04b | 3719 | nic->avail_msix_vectors = 0; |
cc6e7c44 RA |
3720 | return -ENOMEM; |
3721 | } | |
c92ca04b AR |
3722 | if (!nic->avail_msix_vectors) |
3723 | nic->avail_msix_vectors = MAX_REQUESTED_MSI_X; | |
cc6e7c44 RA |
3724 | |
3725 | /* | |
3726 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3727 | * in the herc NIC. (Temp change, needs to be removed later) | |
3728 | */ | |
3729 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3730 | msi_control |= 0x1; /* Enable MSI */ | |
3731 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3732 | ||
3733 | return 0; | |
3734 | } | |
3735 | ||
8abc4d5b | 3736 | /* Handle software interrupt used during MSI(X) test */ |
33390a70 | 3737 | static irqreturn_t s2io_test_intr(int irq, void *dev_id) |
8abc4d5b SS |
3738 | { |
3739 | struct s2io_nic *sp = dev_id; | |
3740 | ||
3741 | sp->msi_detected = 1; | |
3742 | wake_up(&sp->msi_wait); | |
3743 | ||
3744 | return IRQ_HANDLED; | |
3745 | } | |
3746 | ||
3747 | /* Test interrupt path by forcing a a software IRQ */ | |
33390a70 | 3748 | static int s2io_test_msi(struct s2io_nic *sp) |
8abc4d5b SS |
3749 | { |
3750 | struct pci_dev *pdev = sp->pdev; | |
3751 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
3752 | int err; | |
3753 | u64 val64, saved64; | |
3754 | ||
3755 | err = request_irq(sp->entries[1].vector, s2io_test_intr, 0, | |
3756 | sp->name, sp); | |
3757 | if (err) { | |
3758 | DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n", | |
3759 | sp->dev->name, pci_name(pdev), pdev->irq); | |
3760 | return err; | |
3761 | } | |
3762 | ||
3763 | init_waitqueue_head (&sp->msi_wait); | |
3764 | sp->msi_detected = 0; | |
3765 | ||
3766 | saved64 = val64 = readq(&bar0->scheduled_int_ctrl); | |
3767 | val64 |= SCHED_INT_CTRL_ONE_SHOT; | |
3768 | val64 |= SCHED_INT_CTRL_TIMER_EN; | |
3769 | val64 |= SCHED_INT_CTRL_INT2MSI(1); | |
3770 | writeq(val64, &bar0->scheduled_int_ctrl); | |
3771 | ||
3772 | wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10); | |
3773 | ||
3774 | if (!sp->msi_detected) { | |
3775 | /* MSI(X) test failed, go back to INTx mode */ | |
3776 | DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated" | |
3777 | "using MSI(X) during test\n", sp->dev->name, | |
3778 | pci_name(pdev)); | |
3779 | ||
3780 | err = -EOPNOTSUPP; | |
3781 | } | |
3782 | ||
3783 | free_irq(sp->entries[1].vector, sp); | |
3784 | ||
3785 | writeq(saved64, &bar0->scheduled_int_ctrl); | |
3786 | ||
3787 | return err; | |
3788 | } | |
18b2b7bd SH |
3789 | |
3790 | static void remove_msix_isr(struct s2io_nic *sp) | |
3791 | { | |
3792 | int i; | |
3793 | u16 msi_control; | |
3794 | ||
3795 | for (i = 0; i < MAX_REQUESTED_MSI_X; i++) { | |
3796 | if (sp->s2io_entries[i].in_use == | |
3797 | MSIX_REGISTERED_SUCCESS) { | |
3798 | int vector = sp->entries[i].vector; | |
3799 | void *arg = sp->s2io_entries[i].arg; | |
3800 | free_irq(vector, arg); | |
3801 | } | |
3802 | } | |
3803 | ||
3804 | kfree(sp->entries); | |
3805 | kfree(sp->s2io_entries); | |
3806 | sp->entries = NULL; | |
3807 | sp->s2io_entries = NULL; | |
3808 | ||
3809 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
3810 | msi_control &= 0xFFFE; /* Disable MSI */ | |
3811 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
3812 | ||
3813 | pci_disable_msix(sp->pdev); | |
3814 | } | |
3815 | ||
3816 | static void remove_inta_isr(struct s2io_nic *sp) | |
3817 | { | |
3818 | struct net_device *dev = sp->dev; | |
3819 | ||
3820 | free_irq(sp->pdev->irq, dev); | |
3821 | } | |
3822 | ||
1da177e4 LT |
3823 | /* ********************************************************* * |
3824 | * Functions defined below concern the OS part of the driver * | |
3825 | * ********************************************************* */ | |
3826 | ||
20346722 | 3827 | /** |
1da177e4 LT |
3828 | * s2io_open - open entry point of the driver |
3829 | * @dev : pointer to the device structure. | |
3830 | * Description: | |
3831 | * This function is the open entry point of the driver. It mainly calls a | |
3832 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3833 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3834 | * Return value: |
3835 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3836 | * file on failure. | |
3837 | */ | |
3838 | ||
ac1f60db | 3839 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3840 | { |
1ee6dd77 | 3841 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3842 | int err = 0; |
3843 | ||
20346722 | 3844 | /* |
3845 | * Make sure you have link off by default every time | |
1da177e4 LT |
3846 | * Nic is initialized |
3847 | */ | |
3848 | netif_carrier_off(dev); | |
0b1f7ebe | 3849 | sp->last_link_state = 0; |
1da177e4 | 3850 | |
eaae7f72 | 3851 | if (sp->config.intr_type == MSI_X) { |
8abc4d5b SS |
3852 | int ret = s2io_enable_msi_x(sp); |
3853 | ||
3854 | if (!ret) { | |
8abc4d5b | 3855 | ret = s2io_test_msi(sp); |
8abc4d5b | 3856 | /* rollback MSI-X, will re-enable during add_isr() */ |
18b2b7bd | 3857 | remove_msix_isr(sp); |
8abc4d5b SS |
3858 | } |
3859 | if (ret) { | |
3860 | ||
3861 | DBG_PRINT(ERR_DBG, | |
3862 | "%s: MSI-X requested but failed to enable\n", | |
3863 | dev->name); | |
eaae7f72 | 3864 | sp->config.intr_type = INTA; |
8abc4d5b SS |
3865 | } |
3866 | } | |
3867 | ||
c77dd43e | 3868 | /* NAPI doesn't work well with MSI(X) */ |
eaae7f72 | 3869 | if (sp->config.intr_type != INTA) { |
c77dd43e SS |
3870 | if(sp->config.napi) |
3871 | sp->config.napi = 0; | |
3872 | } | |
3873 | ||
1da177e4 | 3874 | /* Initialize H/W and enable interrupts */ |
c92ca04b AR |
3875 | err = s2io_card_up(sp); |
3876 | if (err) { | |
1da177e4 LT |
3877 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3878 | dev->name); | |
e6a8fee2 | 3879 | goto hw_init_failed; |
1da177e4 LT |
3880 | } |
3881 | ||
2fd37688 | 3882 | if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) { |
1da177e4 | 3883 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); |
e6a8fee2 | 3884 | s2io_card_down(sp); |
20346722 | 3885 | err = -ENODEV; |
e6a8fee2 | 3886 | goto hw_init_failed; |
1da177e4 LT |
3887 | } |
3888 | ||
3889 | netif_start_queue(dev); | |
3890 | return 0; | |
20346722 | 3891 | |
20346722 | 3892 | hw_init_failed: |
eaae7f72 | 3893 | if (sp->config.intr_type == MSI_X) { |
491976b2 | 3894 | if (sp->entries) { |
cc6e7c44 | 3895 | kfree(sp->entries); |
8a4bdbaa | 3896 | sp->mac_control.stats_info->sw_stat.mem_freed |
491976b2 SH |
3897 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); |
3898 | } | |
3899 | if (sp->s2io_entries) { | |
cc6e7c44 | 3900 | kfree(sp->s2io_entries); |
8a4bdbaa | 3901 | sp->mac_control.stats_info->sw_stat.mem_freed |
491976b2 SH |
3902 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); |
3903 | } | |
cc6e7c44 | 3904 | } |
20346722 | 3905 | return err; |
1da177e4 LT |
3906 | } |
3907 | ||
3908 | /** | |
3909 | * s2io_close -close entry point of the driver | |
3910 | * @dev : device pointer. | |
3911 | * Description: | |
3912 | * This is the stop entry point of the driver. It needs to undo exactly | |
3913 | * whatever was done by the open entry point,thus it's usually referred to | |
3914 | * as the close function.Among other things this function mainly stops the | |
3915 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3916 | * Return value: | |
3917 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3918 | * file on failure. | |
3919 | */ | |
3920 | ||
ac1f60db | 3921 | static int s2io_close(struct net_device *dev) |
1da177e4 | 3922 | { |
1ee6dd77 | 3923 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 3924 | |
9f74ffde SH |
3925 | /* Return if the device is already closed * |
3926 | * Can happen when s2io_card_up failed in change_mtu * | |
3927 | */ | |
3928 | if (!is_s2io_card_up(sp)) | |
3929 | return 0; | |
3930 | ||
1da177e4 LT |
3931 | netif_stop_queue(dev); |
3932 | /* Reset card, kill tasklet and free Tx and Rx buffers. */ | |
e6a8fee2 | 3933 | s2io_card_down(sp); |
cc6e7c44 | 3934 | |
1da177e4 LT |
3935 | return 0; |
3936 | } | |
3937 | ||
3938 | /** | |
3939 | * s2io_xmit - Tx entry point of te driver | |
3940 | * @skb : the socket buffer containing the Tx data. | |
3941 | * @dev : device pointer. | |
3942 | * Description : | |
3943 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
3944 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
3945 | * NOTE: when device cant queue the pkt,just the trans_start variable will | |
3946 | * not be upadted. | |
3947 | * Return value: | |
3948 | * 0 on success & 1 on failure. | |
3949 | */ | |
3950 | ||
ac1f60db | 3951 | static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 3952 | { |
1ee6dd77 | 3953 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3954 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
3955 | register u64 val64; | |
1ee6dd77 RB |
3956 | struct TxD *txdp; |
3957 | struct TxFIFO_element __iomem *tx_fifo; | |
1da177e4 | 3958 | unsigned long flags; |
be3a6b02 | 3959 | u16 vlan_tag = 0; |
3960 | int vlan_priority = 0; | |
1ee6dd77 | 3961 | struct mac_info *mac_control; |
1da177e4 | 3962 | struct config_param *config; |
75c30b13 | 3963 | int offload_type; |
491abf25 | 3964 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
3965 | |
3966 | mac_control = &sp->mac_control; | |
3967 | config = &sp->config; | |
3968 | ||
20346722 | 3969 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
491976b2 SH |
3970 | |
3971 | if (unlikely(skb->len <= 0)) { | |
3972 | DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name); | |
3973 | dev_kfree_skb_any(skb); | |
3974 | return 0; | |
3975 | } | |
3976 | ||
1da177e4 | 3977 | spin_lock_irqsave(&sp->tx_lock, flags); |
92b84437 | 3978 | if (!is_s2io_card_up(sp)) { |
20346722 | 3979 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 LT |
3980 | dev->name); |
3981 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
20346722 | 3982 | dev_kfree_skb(skb); |
3983 | return 0; | |
1da177e4 LT |
3984 | } |
3985 | ||
3986 | queue = 0; | |
be3a6b02 | 3987 | /* Get Fifo number to Transmit based on vlan priority */ |
3988 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { | |
3989 | vlan_tag = vlan_tx_tag_get(skb); | |
3990 | vlan_priority = vlan_tag >> 13; | |
3991 | queue = config->fifo_mapping[vlan_priority]; | |
3992 | } | |
3993 | ||
20346722 | 3994 | put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset; |
3995 | get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset; | |
1ee6dd77 | 3996 | txdp = (struct TxD *) mac_control->fifos[queue].list_info[put_off]. |
20346722 | 3997 | list_virt_addr; |
3998 | ||
3999 | queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1; | |
1da177e4 | 4000 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 AR |
4001 | if (txdp->Host_Control || |
4002 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { | |
776bd20f | 4003 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
1da177e4 LT |
4004 | netif_stop_queue(dev); |
4005 | dev_kfree_skb(skb); | |
4006 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
4007 | return 0; | |
4008 | } | |
0b1f7ebe | 4009 | |
75c30b13 | 4010 | offload_type = s2io_offload_type(skb); |
75c30b13 | 4011 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 4012 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 4013 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 4014 | } |
84fa7933 | 4015 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
4016 | txdp->Control_2 |= |
4017 | (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN | | |
4018 | TXD_TX_CKO_UDP_EN); | |
4019 | } | |
fed5eccd AR |
4020 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
4021 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
1da177e4 | 4022 | txdp->Control_2 |= config->tx_intr_type; |
d8892c6e | 4023 | |
be3a6b02 | 4024 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { |
4025 | txdp->Control_2 |= TXD_VLAN_ENABLE; | |
4026 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
4027 | } | |
4028 | ||
fed5eccd | 4029 | frg_len = skb->len - skb->data_len; |
75c30b13 | 4030 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
4031 | int ufo_size; |
4032 | ||
75c30b13 | 4033 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
4034 | ufo_size &= ~7; |
4035 | txdp->Control_1 |= TXD_UFO_EN; | |
4036 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
4037 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
4038 | #ifdef __BIG_ENDIAN | |
4039 | sp->ufo_in_band_v[put_off] = | |
4040 | (u64)skb_shinfo(skb)->ip6_frag_id; | |
4041 | #else | |
4042 | sp->ufo_in_band_v[put_off] = | |
4043 | (u64)skb_shinfo(skb)->ip6_frag_id << 32; | |
4044 | #endif | |
4045 | txdp->Host_Control = (unsigned long)sp->ufo_in_band_v; | |
4046 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, | |
4047 | sp->ufo_in_band_v, | |
4048 | sizeof(u64), PCI_DMA_TODEVICE); | |
491abf25 VP |
4049 | if((txdp->Buffer_Pointer == 0) || |
4050 | (txdp->Buffer_Pointer == DMA_ERROR_CODE)) | |
4051 | goto pci_map_failed; | |
fed5eccd | 4052 | txdp++; |
fed5eccd | 4053 | } |
1da177e4 | 4054 | |
fed5eccd AR |
4055 | txdp->Buffer_Pointer = pci_map_single |
4056 | (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); | |
491abf25 VP |
4057 | if((txdp->Buffer_Pointer == 0) || |
4058 | (txdp->Buffer_Pointer == DMA_ERROR_CODE)) | |
4059 | goto pci_map_failed; | |
4060 | ||
fed5eccd AR |
4061 | txdp->Host_Control = (unsigned long) skb; |
4062 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); | |
75c30b13 | 4063 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4064 | txdp->Control_1 |= TXD_UFO_EN; |
4065 | ||
4066 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
4067 | /* For fragmented SKB. */ |
4068 | for (i = 0; i < frg_cnt; i++) { | |
4069 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe | 4070 | /* A '0' length fragment will be ignored */ |
4071 | if (!frag->size) | |
4072 | continue; | |
1da177e4 LT |
4073 | txdp++; |
4074 | txdp->Buffer_Pointer = (u64) pci_map_page | |
4075 | (sp->pdev, frag->page, frag->page_offset, | |
4076 | frag->size, PCI_DMA_TODEVICE); | |
efd51b5c | 4077 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 4078 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 4079 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
4080 | } |
4081 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
4082 | ||
75c30b13 | 4083 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4084 | frg_cnt++; /* as Txd0 was used for inband header */ |
4085 | ||
1da177e4 | 4086 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
20346722 | 4087 | val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr; |
1da177e4 LT |
4088 | writeq(val64, &tx_fifo->TxDL_Pointer); |
4089 | ||
4090 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
4091 | TX_FIFO_LAST_LIST); | |
75c30b13 | 4092 | if (offload_type) |
fed5eccd | 4093 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 4094 | |
1da177e4 LT |
4095 | writeq(val64, &tx_fifo->List_Control); |
4096 | ||
303bcb4b | 4097 | mmiowb(); |
4098 | ||
1da177e4 | 4099 | put_off++; |
863c11a9 AR |
4100 | if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1) |
4101 | put_off = 0; | |
20346722 | 4102 | mac_control->fifos[queue].tx_curr_put_info.offset = put_off; |
1da177e4 LT |
4103 | |
4104 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 4105 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
bd1034f0 | 4106 | sp->mac_control.stats_info->sw_stat.fifo_full_cnt++; |
1da177e4 LT |
4107 | DBG_PRINT(TX_DBG, |
4108 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
4109 | put_off, get_off); | |
4110 | netif_stop_queue(dev); | |
4111 | } | |
491976b2 | 4112 | mac_control->stats_info->sw_stat.mem_allocated += skb->truesize; |
1da177e4 LT |
4113 | dev->trans_start = jiffies; |
4114 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
4115 | ||
491abf25 VP |
4116 | return 0; |
4117 | pci_map_failed: | |
4118 | stats->pci_map_fail_cnt++; | |
4119 | netif_stop_queue(dev); | |
4120 | stats->mem_freed += skb->truesize; | |
4121 | dev_kfree_skb(skb); | |
4122 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
1da177e4 LT |
4123 | return 0; |
4124 | } | |
4125 | ||
25fff88e | 4126 | static void |
4127 | s2io_alarm_handle(unsigned long data) | |
4128 | { | |
1ee6dd77 | 4129 | struct s2io_nic *sp = (struct s2io_nic *)data; |
8116f3cf | 4130 | struct net_device *dev = sp->dev; |
25fff88e | 4131 | |
8116f3cf | 4132 | s2io_handle_errors(dev); |
25fff88e | 4133 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); |
4134 | } | |
4135 | ||
1ee6dd77 | 4136 | static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) |
75c30b13 AR |
4137 | { |
4138 | int rxb_size, level; | |
4139 | ||
4140 | if (!sp->lro) { | |
4141 | rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); | |
4142 | level = rx_buffer_level(sp, rxb_size, rng_n); | |
4143 | ||
4144 | if ((level == PANIC) && (!TASKLET_IN_USE)) { | |
4145 | int ret; | |
4146 | DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); | |
4147 | DBG_PRINT(INTR_DBG, "PANIC levels\n"); | |
4148 | if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { | |
0c61ed5f | 4149 | DBG_PRINT(INFO_DBG, "Out of memory in %s", |
75c30b13 AR |
4150 | __FUNCTION__); |
4151 | clear_bit(0, (&sp->tasklet_status)); | |
4152 | return -1; | |
4153 | } | |
4154 | clear_bit(0, (&sp->tasklet_status)); | |
4155 | } else if (level == LOW) | |
4156 | tasklet_schedule(&sp->task); | |
4157 | ||
4158 | } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { | |
0c61ed5f RV |
4159 | DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name); |
4160 | DBG_PRINT(INFO_DBG, " in Rx Intr!!\n"); | |
75c30b13 AR |
4161 | } |
4162 | return 0; | |
4163 | } | |
4164 | ||
7d12e780 | 4165 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4166 | { |
1ee6dd77 RB |
4167 | struct ring_info *ring = (struct ring_info *)dev_id; |
4168 | struct s2io_nic *sp = ring->nic; | |
cc6e7c44 | 4169 | |
596c5c97 | 4170 | if (!is_s2io_card_up(sp)) |
92b84437 | 4171 | return IRQ_HANDLED; |
92b84437 | 4172 | |
75c30b13 AR |
4173 | rx_intr_handler(ring); |
4174 | s2io_chk_rx_buffers(sp, ring->ring_no); | |
7d3d0439 | 4175 | |
cc6e7c44 RA |
4176 | return IRQ_HANDLED; |
4177 | } | |
4178 | ||
7d12e780 | 4179 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4180 | { |
1ee6dd77 RB |
4181 | struct fifo_info *fifo = (struct fifo_info *)dev_id; |
4182 | struct s2io_nic *sp = fifo->nic; | |
cc6e7c44 | 4183 | |
596c5c97 | 4184 | if (!is_s2io_card_up(sp)) |
92b84437 | 4185 | return IRQ_HANDLED; |
92b84437 | 4186 | |
cc6e7c44 | 4187 | tx_intr_handler(fifo); |
cc6e7c44 RA |
4188 | return IRQ_HANDLED; |
4189 | } | |
1ee6dd77 | 4190 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4191 | { |
1ee6dd77 | 4192 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d | 4193 | u64 val64; |
4194 | ||
4195 | val64 = readq(&bar0->pic_int_status); | |
4196 | if (val64 & PIC_INT_GPIO) { | |
4197 | val64 = readq(&bar0->gpio_int_reg); | |
4198 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4199 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4200 | /* |
4201 | * This is unstable state so clear both up/down | |
4202 | * interrupt and adapter to re-evaluate the link state. | |
4203 | */ | |
a371a07d | 4204 | val64 |= GPIO_INT_REG_LINK_DOWN; |
4205 | val64 |= GPIO_INT_REG_LINK_UP; | |
4206 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4207 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4208 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4209 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4210 | writeq(val64, &bar0->gpio_int_mask); |
a371a07d | 4211 | } |
c92ca04b AR |
4212 | else if (val64 & GPIO_INT_REG_LINK_UP) { |
4213 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 4214 | /* Enable Adapter */ |
19a60522 SS |
4215 | val64 = readq(&bar0->adapter_control); |
4216 | val64 |= ADAPTER_CNTL_EN; | |
4217 | writeq(val64, &bar0->adapter_control); | |
4218 | val64 |= ADAPTER_LED_ON; | |
4219 | writeq(val64, &bar0->adapter_control); | |
4220 | if (!sp->device_enabled_once) | |
4221 | sp->device_enabled_once = 1; | |
c92ca04b | 4222 | |
19a60522 SS |
4223 | s2io_link(sp, LINK_UP); |
4224 | /* | |
4225 | * unmask link down interrupt and mask link-up | |
4226 | * intr | |
4227 | */ | |
4228 | val64 = readq(&bar0->gpio_int_mask); | |
4229 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4230 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4231 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4232 | |
c92ca04b AR |
4233 | }else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
4234 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
4235 | s2io_link(sp, LINK_DOWN); |
4236 | /* Link is down so unmaks link up interrupt */ | |
4237 | val64 = readq(&bar0->gpio_int_mask); | |
4238 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4239 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4240 | writeq(val64, &bar0->gpio_int_mask); | |
ac1f90d6 SS |
4241 | |
4242 | /* turn off LED */ | |
4243 | val64 = readq(&bar0->adapter_control); | |
4244 | val64 = val64 &(~ADAPTER_LED_ON); | |
4245 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 4246 | } |
4247 | } | |
c92ca04b | 4248 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d | 4249 | } |
4250 | ||
8116f3cf SS |
4251 | /** |
4252 | * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter | |
4253 | * @value: alarm bits | |
4254 | * @addr: address value | |
4255 | * @cnt: counter variable | |
4256 | * Description: Check for alarm and increment the counter | |
4257 | * Return Value: | |
4258 | * 1 - if alarm bit set | |
4259 | * 0 - if alarm bit is not set | |
4260 | */ | |
43b7c451 | 4261 | static int do_s2io_chk_alarm_bit(u64 value, void __iomem * addr, |
8116f3cf SS |
4262 | unsigned long long *cnt) |
4263 | { | |
4264 | u64 val64; | |
4265 | val64 = readq(addr); | |
4266 | if ( val64 & value ) { | |
4267 | writeq(val64, addr); | |
4268 | (*cnt)++; | |
4269 | return 1; | |
4270 | } | |
4271 | return 0; | |
4272 | ||
4273 | } | |
4274 | ||
4275 | /** | |
4276 | * s2io_handle_errors - Xframe error indication handler | |
4277 | * @nic: device private variable | |
4278 | * Description: Handle alarms such as loss of link, single or | |
4279 | * double ECC errors, critical and serious errors. | |
4280 | * Return Value: | |
4281 | * NONE | |
4282 | */ | |
4283 | static void s2io_handle_errors(void * dev_id) | |
4284 | { | |
4285 | struct net_device *dev = (struct net_device *) dev_id; | |
4286 | struct s2io_nic *sp = dev->priv; | |
4287 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
4288 | u64 temp64 = 0,val64=0; | |
4289 | int i = 0; | |
4290 | ||
4291 | struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat; | |
4292 | struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat; | |
4293 | ||
92b84437 | 4294 | if (!is_s2io_card_up(sp)) |
8116f3cf SS |
4295 | return; |
4296 | ||
4297 | if (pci_channel_offline(sp->pdev)) | |
4298 | return; | |
4299 | ||
4300 | memset(&sw_stat->ring_full_cnt, 0, | |
4301 | sizeof(sw_stat->ring_full_cnt)); | |
4302 | ||
4303 | /* Handling the XPAK counters update */ | |
4304 | if(stats->xpak_timer_count < 72000) { | |
4305 | /* waiting for an hour */ | |
4306 | stats->xpak_timer_count++; | |
4307 | } else { | |
4308 | s2io_updt_xpak_counter(dev); | |
4309 | /* reset the count to zero */ | |
4310 | stats->xpak_timer_count = 0; | |
4311 | } | |
4312 | ||
4313 | /* Handling link status change error Intr */ | |
4314 | if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) { | |
4315 | val64 = readq(&bar0->mac_rmac_err_reg); | |
4316 | writeq(val64, &bar0->mac_rmac_err_reg); | |
4317 | if (val64 & RMAC_LINK_STATE_CHANGE_INT) | |
4318 | schedule_work(&sp->set_link_task); | |
4319 | } | |
4320 | ||
4321 | /* In case of a serious error, the device will be Reset. */ | |
4322 | if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source, | |
4323 | &sw_stat->serious_err_cnt)) | |
4324 | goto reset; | |
4325 | ||
4326 | /* Check for data parity error */ | |
4327 | if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg, | |
4328 | &sw_stat->parity_err_cnt)) | |
4329 | goto reset; | |
4330 | ||
4331 | /* Check for ring full counter */ | |
4332 | if (sp->device_type == XFRAME_II_DEVICE) { | |
4333 | val64 = readq(&bar0->ring_bump_counter1); | |
4334 | for (i=0; i<4; i++) { | |
4335 | temp64 = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
4336 | temp64 >>= 64 - ((i+1)*16); | |
4337 | sw_stat->ring_full_cnt[i] += temp64; | |
4338 | } | |
4339 | ||
4340 | val64 = readq(&bar0->ring_bump_counter2); | |
4341 | for (i=0; i<4; i++) { | |
4342 | temp64 = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
4343 | temp64 >>= 64 - ((i+1)*16); | |
4344 | sw_stat->ring_full_cnt[i+4] += temp64; | |
4345 | } | |
4346 | } | |
4347 | ||
4348 | val64 = readq(&bar0->txdma_int_status); | |
4349 | /*check for pfc_err*/ | |
4350 | if (val64 & TXDMA_PFC_INT) { | |
4351 | if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM| | |
4352 | PFC_MISC_0_ERR | PFC_MISC_1_ERR| | |
4353 | PFC_PCIX_ERR, &bar0->pfc_err_reg, | |
4354 | &sw_stat->pfc_err_cnt)) | |
4355 | goto reset; | |
4356 | do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR, &bar0->pfc_err_reg, | |
4357 | &sw_stat->pfc_err_cnt); | |
4358 | } | |
4359 | ||
4360 | /*check for tda_err*/ | |
4361 | if (val64 & TXDMA_TDA_INT) { | |
4362 | if(do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM | | |
4363 | TDA_SM1_ERR_ALARM, &bar0->tda_err_reg, | |
4364 | &sw_stat->tda_err_cnt)) | |
4365 | goto reset; | |
4366 | do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR, | |
4367 | &bar0->tda_err_reg, &sw_stat->tda_err_cnt); | |
4368 | } | |
4369 | /*check for pcc_err*/ | |
4370 | if (val64 & TXDMA_PCC_INT) { | |
4371 | if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM | |
4372 | | PCC_N_SERR | PCC_6_COF_OV_ERR | |
4373 | | PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR | |
4374 | | PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR | |
4375 | | PCC_TXB_ECC_DB_ERR, &bar0->pcc_err_reg, | |
4376 | &sw_stat->pcc_err_cnt)) | |
4377 | goto reset; | |
4378 | do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR, | |
4379 | &bar0->pcc_err_reg, &sw_stat->pcc_err_cnt); | |
4380 | } | |
4381 | ||
4382 | /*check for tti_err*/ | |
4383 | if (val64 & TXDMA_TTI_INT) { | |
4384 | if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM, &bar0->tti_err_reg, | |
4385 | &sw_stat->tti_err_cnt)) | |
4386 | goto reset; | |
4387 | do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR, | |
4388 | &bar0->tti_err_reg, &sw_stat->tti_err_cnt); | |
4389 | } | |
4390 | ||
4391 | /*check for lso_err*/ | |
4392 | if (val64 & TXDMA_LSO_INT) { | |
4393 | if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT | |
4394 | | LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM, | |
4395 | &bar0->lso_err_reg, &sw_stat->lso_err_cnt)) | |
4396 | goto reset; | |
4397 | do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW, | |
4398 | &bar0->lso_err_reg, &sw_stat->lso_err_cnt); | |
4399 | } | |
4400 | ||
4401 | /*check for tpa_err*/ | |
4402 | if (val64 & TXDMA_TPA_INT) { | |
4403 | if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM, &bar0->tpa_err_reg, | |
4404 | &sw_stat->tpa_err_cnt)) | |
4405 | goto reset; | |
4406 | do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP, &bar0->tpa_err_reg, | |
4407 | &sw_stat->tpa_err_cnt); | |
4408 | } | |
4409 | ||
4410 | /*check for sm_err*/ | |
4411 | if (val64 & TXDMA_SM_INT) { | |
4412 | if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM, &bar0->sm_err_reg, | |
4413 | &sw_stat->sm_err_cnt)) | |
4414 | goto reset; | |
4415 | } | |
4416 | ||
4417 | val64 = readq(&bar0->mac_int_status); | |
4418 | if (val64 & MAC_INT_STATUS_TMAC_INT) { | |
4419 | if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR, | |
4420 | &bar0->mac_tmac_err_reg, | |
4421 | &sw_stat->mac_tmac_err_cnt)) | |
4422 | goto reset; | |
4423 | do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR | |
4424 | | TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR, | |
4425 | &bar0->mac_tmac_err_reg, | |
4426 | &sw_stat->mac_tmac_err_cnt); | |
4427 | } | |
4428 | ||
4429 | val64 = readq(&bar0->xgxs_int_status); | |
4430 | if (val64 & XGXS_INT_STATUS_TXGXS) { | |
4431 | if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR, | |
4432 | &bar0->xgxs_txgxs_err_reg, | |
4433 | &sw_stat->xgxs_txgxs_err_cnt)) | |
4434 | goto reset; | |
4435 | do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR, | |
4436 | &bar0->xgxs_txgxs_err_reg, | |
4437 | &sw_stat->xgxs_txgxs_err_cnt); | |
4438 | } | |
4439 | ||
4440 | val64 = readq(&bar0->rxdma_int_status); | |
4441 | if (val64 & RXDMA_INT_RC_INT_M) { | |
4442 | if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR | |
4443 | | RC_PRCn_SM_ERR_ALARM |RC_FTC_SM_ERR_ALARM, | |
4444 | &bar0->rc_err_reg, &sw_stat->rc_err_cnt)) | |
4445 | goto reset; | |
4446 | do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR | |
4447 | | RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg, | |
4448 | &sw_stat->rc_err_cnt); | |
4449 | if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn | |
4450 | | PRC_PCI_AB_F_WR_Rn, &bar0->prc_pcix_err_reg, | |
4451 | &sw_stat->prc_pcix_err_cnt)) | |
4452 | goto reset; | |
4453 | do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn | PRC_PCI_DP_WR_Rn | |
4454 | | PRC_PCI_DP_F_WR_Rn, &bar0->prc_pcix_err_reg, | |
4455 | &sw_stat->prc_pcix_err_cnt); | |
4456 | } | |
4457 | ||
4458 | if (val64 & RXDMA_INT_RPA_INT_M) { | |
4459 | if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR, | |
4460 | &bar0->rpa_err_reg, &sw_stat->rpa_err_cnt)) | |
4461 | goto reset; | |
4462 | do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, | |
4463 | &bar0->rpa_err_reg, &sw_stat->rpa_err_cnt); | |
4464 | } | |
4465 | ||
4466 | if (val64 & RXDMA_INT_RDA_INT_M) { | |
4467 | if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR | |
4468 | | RDA_FRM_ECC_DB_N_AERR | RDA_SM1_ERR_ALARM | |
4469 | | RDA_SM0_ERR_ALARM | RDA_RXD_ECC_DB_SERR, | |
4470 | &bar0->rda_err_reg, &sw_stat->rda_err_cnt)) | |
4471 | goto reset; | |
4472 | do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR | RDA_FRM_ECC_SG_ERR | |
4473 | | RDA_MISC_ERR | RDA_PCIX_ERR, | |
4474 | &bar0->rda_err_reg, &sw_stat->rda_err_cnt); | |
4475 | } | |
4476 | ||
4477 | if (val64 & RXDMA_INT_RTI_INT_M) { | |
4478 | if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM, &bar0->rti_err_reg, | |
4479 | &sw_stat->rti_err_cnt)) | |
4480 | goto reset; | |
4481 | do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR, | |
4482 | &bar0->rti_err_reg, &sw_stat->rti_err_cnt); | |
4483 | } | |
4484 | ||
4485 | val64 = readq(&bar0->mac_int_status); | |
4486 | if (val64 & MAC_INT_STATUS_RMAC_INT) { | |
4487 | if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR, | |
4488 | &bar0->mac_rmac_err_reg, | |
4489 | &sw_stat->mac_rmac_err_cnt)) | |
4490 | goto reset; | |
4491 | do_s2io_chk_alarm_bit(RMAC_UNUSED_INT|RMAC_SINGLE_ECC_ERR| | |
4492 | RMAC_DOUBLE_ECC_ERR, &bar0->mac_rmac_err_reg, | |
4493 | &sw_stat->mac_rmac_err_cnt); | |
4494 | } | |
4495 | ||
4496 | val64 = readq(&bar0->xgxs_int_status); | |
4497 | if (val64 & XGXS_INT_STATUS_RXGXS) { | |
4498 | if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, | |
4499 | &bar0->xgxs_rxgxs_err_reg, | |
4500 | &sw_stat->xgxs_rxgxs_err_cnt)) | |
4501 | goto reset; | |
4502 | } | |
4503 | ||
4504 | val64 = readq(&bar0->mc_int_status); | |
4505 | if(val64 & MC_INT_STATUS_MC_INT) { | |
4506 | if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR, &bar0->mc_err_reg, | |
4507 | &sw_stat->mc_err_cnt)) | |
4508 | goto reset; | |
4509 | ||
4510 | /* Handling Ecc errors */ | |
4511 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
4512 | writeq(val64, &bar0->mc_err_reg); | |
4513 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
4514 | sw_stat->double_ecc_errs++; | |
4515 | if (sp->device_type != XFRAME_II_DEVICE) { | |
4516 | /* | |
4517 | * Reset XframeI only if critical error | |
4518 | */ | |
4519 | if (val64 & | |
4520 | (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | | |
4521 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) | |
4522 | goto reset; | |
4523 | } | |
4524 | } else | |
4525 | sw_stat->single_ecc_errs++; | |
4526 | } | |
4527 | } | |
4528 | return; | |
4529 | ||
4530 | reset: | |
4531 | netif_stop_queue(dev); | |
4532 | schedule_work(&sp->rst_timer_task); | |
4533 | sw_stat->soft_reset_cnt++; | |
4534 | return; | |
4535 | } | |
4536 | ||
1da177e4 LT |
4537 | /** |
4538 | * s2io_isr - ISR handler of the device . | |
4539 | * @irq: the irq of the device. | |
4540 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 | 4541 | * Description: This function is the ISR handler of the device. It |
4542 | * identifies the reason for the interrupt and calls the relevant | |
4543 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4544 | * recv buffers, if their numbers are below the panic value which is |
4545 | * presently set to 25% of the original number of rcv buffers allocated. | |
4546 | * Return value: | |
20346722 | 4547 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4548 | * IRQ_NONE: will be returned if interrupt is not from our device |
4549 | */ | |
7d12e780 | 4550 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 LT |
4551 | { |
4552 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 RB |
4553 | struct s2io_nic *sp = dev->priv; |
4554 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
20346722 | 4555 | int i; |
19a60522 | 4556 | u64 reason = 0; |
1ee6dd77 | 4557 | struct mac_info *mac_control; |
1da177e4 LT |
4558 | struct config_param *config; |
4559 | ||
d796fdb7 LV |
4560 | /* Pretend we handled any irq's from a disconnected card */ |
4561 | if (pci_channel_offline(sp->pdev)) | |
4562 | return IRQ_NONE; | |
4563 | ||
596c5c97 | 4564 | if (!is_s2io_card_up(sp)) |
92b84437 | 4565 | return IRQ_NONE; |
92b84437 | 4566 | |
1da177e4 LT |
4567 | mac_control = &sp->mac_control; |
4568 | config = &sp->config; | |
4569 | ||
20346722 | 4570 | /* |
1da177e4 LT |
4571 | * Identify the cause for interrupt and call the appropriate |
4572 | * interrupt handler. Causes for the interrupt could be; | |
4573 | * 1. Rx of packet. | |
4574 | * 2. Tx complete. | |
4575 | * 3. Link down. | |
1da177e4 LT |
4576 | */ |
4577 | reason = readq(&bar0->general_int_status); | |
4578 | ||
596c5c97 SS |
4579 | if (unlikely(reason == S2IO_MINUS_ONE) ) { |
4580 | /* Nothing much can be done. Get out */ | |
4581 | return IRQ_HANDLED; | |
1da177e4 | 4582 | } |
5d3213cc | 4583 | |
596c5c97 SS |
4584 | if (reason & (GEN_INTR_RXTRAFFIC | |
4585 | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) | |
4586 | { | |
4587 | writeq(S2IO_MINUS_ONE, &bar0->general_int_mask); | |
4588 | ||
4589 | if (config->napi) { | |
4590 | if (reason & GEN_INTR_RXTRAFFIC) { | |
4591 | if (likely(netif_rx_schedule_prep(dev, | |
4592 | &sp->napi))) { | |
4593 | __netif_rx_schedule(dev, &sp->napi); | |
4594 | writeq(S2IO_MINUS_ONE, | |
4595 | &bar0->rx_traffic_mask); | |
4596 | } else | |
4597 | writeq(S2IO_MINUS_ONE, | |
4598 | &bar0->rx_traffic_int); | |
db874e65 | 4599 | } |
596c5c97 SS |
4600 | } else { |
4601 | /* | |
4602 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4603 | * will ensure that the actual interrupt causing bit | |
4604 | * get's cleared and hence a read can be avoided. | |
4605 | */ | |
4606 | if (reason & GEN_INTR_RXTRAFFIC) | |
19a60522 | 4607 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
596c5c97 SS |
4608 | |
4609 | for (i = 0; i < config->rx_ring_num; i++) | |
4610 | rx_intr_handler(&mac_control->rings[i]); | |
db874e65 | 4611 | } |
596c5c97 | 4612 | |
db874e65 | 4613 | /* |
596c5c97 | 4614 | * tx_traffic_int reg is an R1 register, writing all 1's |
db874e65 SS |
4615 | * will ensure that the actual interrupt causing bit get's |
4616 | * cleared and hence a read can be avoided. | |
4617 | */ | |
596c5c97 SS |
4618 | if (reason & GEN_INTR_TXTRAFFIC) |
4619 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
19a60522 | 4620 | |
596c5c97 SS |
4621 | for (i = 0; i < config->tx_fifo_num; i++) |
4622 | tx_intr_handler(&mac_control->fifos[i]); | |
1da177e4 | 4623 | |
596c5c97 SS |
4624 | if (reason & GEN_INTR_TXPIC) |
4625 | s2io_txpic_intr_handle(sp); | |
fe113638 | 4626 | |
596c5c97 SS |
4627 | /* |
4628 | * Reallocate the buffers from the interrupt handler itself. | |
4629 | */ | |
4630 | if (!config->napi) { | |
4631 | for (i = 0; i < config->rx_ring_num; i++) | |
4632 | s2io_chk_rx_buffers(sp, i); | |
4633 | } | |
4634 | writeq(sp->general_int_mask, &bar0->general_int_mask); | |
4635 | readl(&bar0->general_int_status); | |
20346722 | 4636 | |
596c5c97 | 4637 | return IRQ_HANDLED; |
db874e65 | 4638 | |
596c5c97 SS |
4639 | } |
4640 | else if (!reason) { | |
4641 | /* The interrupt was not raised by us */ | |
4642 | return IRQ_NONE; | |
4643 | } | |
db874e65 | 4644 | |
1da177e4 LT |
4645 | return IRQ_HANDLED; |
4646 | } | |
4647 | ||
7ba013ac | 4648 | /** |
4649 | * s2io_updt_stats - | |
4650 | */ | |
1ee6dd77 | 4651 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4652 | { |
1ee6dd77 | 4653 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac | 4654 | u64 val64; |
4655 | int cnt = 0; | |
4656 | ||
92b84437 | 4657 | if (is_s2io_card_up(sp)) { |
7ba013ac | 4658 | /* Apprx 30us on a 133 MHz bus */ |
4659 | val64 = SET_UPDT_CLICKS(10) | | |
4660 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4661 | writeq(val64, &bar0->stat_cfg); | |
4662 | do { | |
4663 | udelay(100); | |
4664 | val64 = readq(&bar0->stat_cfg); | |
b7b5a128 | 4665 | if (!(val64 & s2BIT(0))) |
7ba013ac | 4666 | break; |
4667 | cnt++; | |
4668 | if (cnt == 5) | |
4669 | break; /* Updt failed */ | |
4670 | } while(1); | |
8a4bdbaa | 4671 | } |
7ba013ac | 4672 | } |
4673 | ||
1da177e4 | 4674 | /** |
20346722 | 4675 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4676 | * @dev : pointer to the device structure. |
4677 | * Description: | |
20346722 | 4678 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4679 | * structure and returns a pointer to the same. |
4680 | * Return value: | |
4681 | * pointer to the updated net_device_stats structure. | |
4682 | */ | |
4683 | ||
ac1f60db | 4684 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4685 | { |
1ee6dd77 RB |
4686 | struct s2io_nic *sp = dev->priv; |
4687 | struct mac_info *mac_control; | |
1da177e4 LT |
4688 | struct config_param *config; |
4689 | ||
20346722 | 4690 | |
1da177e4 LT |
4691 | mac_control = &sp->mac_control; |
4692 | config = &sp->config; | |
4693 | ||
7ba013ac | 4694 | /* Configure Stats for immediate updt */ |
4695 | s2io_updt_stats(sp); | |
4696 | ||
4697 | sp->stats.tx_packets = | |
4698 | le32_to_cpu(mac_control->stats_info->tmac_frms); | |
20346722 | 4699 | sp->stats.tx_errors = |
4700 | le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); | |
4701 | sp->stats.rx_errors = | |
ee705dba | 4702 | le64_to_cpu(mac_control->stats_info->rmac_drop_frms); |
20346722 | 4703 | sp->stats.multicast = |
4704 | le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); | |
1da177e4 | 4705 | sp->stats.rx_length_errors = |
ee705dba | 4706 | le64_to_cpu(mac_control->stats_info->rmac_long_frms); |
1da177e4 LT |
4707 | |
4708 | return (&sp->stats); | |
4709 | } | |
4710 | ||
4711 | /** | |
4712 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4713 | * @dev : pointer to the device structure | |
4714 | * Description: | |
20346722 | 4715 | * This function is a driver entry point which gets called by the kernel |
4716 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4717 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4718 | * determine, if multicast address must be enabled or if promiscuous mode | |
4719 | * is to be disabled etc. | |
4720 | * Return value: | |
4721 | * void. | |
4722 | */ | |
4723 | ||
4724 | static void s2io_set_multicast(struct net_device *dev) | |
4725 | { | |
4726 | int i, j, prev_cnt; | |
4727 | struct dev_mc_list *mclist; | |
1ee6dd77 RB |
4728 | struct s2io_nic *sp = dev->priv; |
4729 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4730 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
4731 | 0xfeffffffffffULL; | |
4732 | u64 dis_addr = 0xffffffffffffULL, mac_addr = 0; | |
4733 | void __iomem *add; | |
4734 | ||
4735 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4736 | /* Enable all Multicast addresses */ | |
4737 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4738 | &bar0->rmac_addr_data0_mem); | |
4739 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4740 | &bar0->rmac_addr_data1_mem); | |
4741 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
4742 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4743 | RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET); | |
4744 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4745 | /* Wait till command completes */ | |
c92ca04b | 4746 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4747 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4748 | S2IO_BIT_RESET); | |
1da177e4 LT |
4749 | |
4750 | sp->m_cast_flg = 1; | |
4751 | sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET; | |
4752 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { | |
4753 | /* Disable all Multicast addresses */ | |
4754 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4755 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd | 4756 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4757 | &bar0->rmac_addr_data1_mem); | |
1da177e4 LT |
4758 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4759 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4760 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
4761 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4762 | /* Wait till command completes */ | |
c92ca04b | 4763 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4764 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4765 | S2IO_BIT_RESET); | |
1da177e4 LT |
4766 | |
4767 | sp->m_cast_flg = 0; | |
4768 | sp->all_multi_pos = 0; | |
4769 | } | |
4770 | ||
4771 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4772 | /* Put the NIC into promiscuous mode */ | |
4773 | add = &bar0->mac_cfg; | |
4774 | val64 = readq(&bar0->mac_cfg); | |
4775 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4776 | ||
4777 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4778 | writel((u32) val64, add); | |
4779 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4780 | writel((u32) (val64 >> 32), (add + 4)); | |
4781 | ||
926930b2 SS |
4782 | if (vlan_tag_strip != 1) { |
4783 | val64 = readq(&bar0->rx_pa_cfg); | |
4784 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
4785 | writeq(val64, &bar0->rx_pa_cfg); | |
4786 | vlan_strip_flag = 0; | |
4787 | } | |
4788 | ||
1da177e4 LT |
4789 | val64 = readq(&bar0->mac_cfg); |
4790 | sp->promisc_flg = 1; | |
776bd20f | 4791 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
4792 | dev->name); |
4793 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
4794 | /* Remove the NIC from promiscuous mode */ | |
4795 | add = &bar0->mac_cfg; | |
4796 | val64 = readq(&bar0->mac_cfg); | |
4797 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
4798 | ||
4799 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4800 | writel((u32) val64, add); | |
4801 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4802 | writel((u32) (val64 >> 32), (add + 4)); | |
4803 | ||
926930b2 SS |
4804 | if (vlan_tag_strip != 0) { |
4805 | val64 = readq(&bar0->rx_pa_cfg); | |
4806 | val64 |= RX_PA_CFG_STRIP_VLAN_TAG; | |
4807 | writeq(val64, &bar0->rx_pa_cfg); | |
4808 | vlan_strip_flag = 1; | |
4809 | } | |
4810 | ||
1da177e4 LT |
4811 | val64 = readq(&bar0->mac_cfg); |
4812 | sp->promisc_flg = 0; | |
776bd20f | 4813 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", |
1da177e4 LT |
4814 | dev->name); |
4815 | } | |
4816 | ||
4817 | /* Update individual M_CAST address list */ | |
4818 | if ((!sp->m_cast_flg) && dev->mc_count) { | |
4819 | if (dev->mc_count > | |
4820 | (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) { | |
4821 | DBG_PRINT(ERR_DBG, "%s: No more Rx filters ", | |
4822 | dev->name); | |
4823 | DBG_PRINT(ERR_DBG, "can be added, please enable "); | |
4824 | DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n"); | |
4825 | return; | |
4826 | } | |
4827 | ||
4828 | prev_cnt = sp->mc_addr_count; | |
4829 | sp->mc_addr_count = dev->mc_count; | |
4830 | ||
4831 | /* Clear out the previous list of Mc in the H/W. */ | |
4832 | for (i = 0; i < prev_cnt; i++) { | |
4833 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4834 | &bar0->rmac_addr_data0_mem); | |
4835 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4836 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4837 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4838 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4839 | RMAC_ADDR_CMD_MEM_OFFSET | |
4840 | (MAC_MC_ADDR_START_OFFSET + i); | |
4841 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4842 | ||
4843 | /* Wait for command completes */ | |
c92ca04b | 4844 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4845 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4846 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4847 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4848 | dev->name); | |
4849 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4850 | return; | |
4851 | } | |
4852 | } | |
4853 | ||
4854 | /* Create the new Rx filter list and update the same in H/W. */ | |
4855 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
4856 | i++, mclist = mclist->next) { | |
4857 | memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr, | |
4858 | ETH_ALEN); | |
a7a80d5a | 4859 | mac_addr = 0; |
1da177e4 LT |
4860 | for (j = 0; j < ETH_ALEN; j++) { |
4861 | mac_addr |= mclist->dmi_addr[j]; | |
4862 | mac_addr <<= 8; | |
4863 | } | |
4864 | mac_addr >>= 8; | |
4865 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4866 | &bar0->rmac_addr_data0_mem); | |
4867 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4868 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4869 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4870 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4871 | RMAC_ADDR_CMD_MEM_OFFSET | |
4872 | (i + MAC_MC_ADDR_START_OFFSET); | |
4873 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4874 | ||
4875 | /* Wait for command completes */ | |
c92ca04b | 4876 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4877 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4878 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4879 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4880 | dev->name); | |
4881 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4882 | return; | |
4883 | } | |
4884 | } | |
4885 | } | |
4886 | } | |
4887 | ||
2fd37688 SS |
4888 | /* add unicast MAC address to CAM */ |
4889 | static int do_s2io_add_unicast(struct s2io_nic *sp, u64 addr, int off) | |
4890 | { | |
4891 | u64 val64; | |
4892 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
4893 | ||
4894 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr), | |
4895 | &bar0->rmac_addr_data0_mem); | |
4896 | ||
4897 | val64 = | |
4898 | RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4899 | RMAC_ADDR_CMD_MEM_OFFSET(off); | |
4900 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4901 | ||
4902 | /* Wait till command completes */ | |
4903 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, | |
4904 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, | |
4905 | S2IO_BIT_RESET)) { | |
4906 | DBG_PRINT(INFO_DBG, "add_mac_addr failed\n"); | |
4907 | return FAILURE; | |
4908 | } | |
4909 | return SUCCESS; | |
4910 | } | |
4911 | ||
4912 | /** | |
4913 | * s2io_set_mac_addr driver entry point | |
4914 | */ | |
4915 | static int s2io_set_mac_addr(struct net_device *dev, void *p) | |
4916 | { | |
4917 | struct sockaddr *addr = p; | |
4918 | ||
4919 | if (!is_valid_ether_addr(addr->sa_data)) | |
4920 | return -EINVAL; | |
4921 | ||
4922 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
4923 | ||
4924 | /* store the MAC address in CAM */ | |
4925 | return (do_s2io_prog_unicast(dev, dev->dev_addr)); | |
4926 | } | |
4927 | ||
1da177e4 | 4928 | /** |
2fd37688 | 4929 | * do_s2io_prog_unicast - Programs the Xframe mac address |
1da177e4 LT |
4930 | * @dev : pointer to the device structure. |
4931 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 4932 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 4933 | * frames with new Mac Address |
20346722 | 4934 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
4935 | * as defined in errno.h file on failure. |
4936 | */ | |
2fd37688 | 4937 | static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr) |
1da177e4 | 4938 | { |
1ee6dd77 | 4939 | struct s2io_nic *sp = dev->priv; |
2fd37688 | 4940 | register u64 mac_addr = 0, perm_addr = 0; |
1da177e4 LT |
4941 | int i; |
4942 | ||
20346722 | 4943 | /* |
2fd37688 SS |
4944 | * Set the new MAC address as the new unicast filter and reflect this |
4945 | * change on the device address registered with the OS. It will be | |
4946 | * at offset 0. | |
4947 | */ | |
1da177e4 LT |
4948 | for (i = 0; i < ETH_ALEN; i++) { |
4949 | mac_addr <<= 8; | |
4950 | mac_addr |= addr[i]; | |
2fd37688 SS |
4951 | perm_addr <<= 8; |
4952 | perm_addr |= sp->def_mac_addr[0].mac_addr[i]; | |
d8d70caf SS |
4953 | } |
4954 | ||
2fd37688 SS |
4955 | /* check if the dev_addr is different than perm_addr */ |
4956 | if (mac_addr == perm_addr) | |
d8d70caf SS |
4957 | return SUCCESS; |
4958 | ||
4959 | /* Update the internal structure with this new mac address */ | |
2fd37688 SS |
4960 | do_s2io_copy_mac_addr(sp, 0, mac_addr); |
4961 | return (do_s2io_add_unicast(sp, mac_addr, 0)); | |
1da177e4 LT |
4962 | } |
4963 | ||
4964 | /** | |
20346722 | 4965 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
4966 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
4967 | * @info: pointer to the structure with parameters given by ethtool to set | |
4968 | * link information. | |
4969 | * Description: | |
20346722 | 4970 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
4971 | * the NIC. |
4972 | * Return value: | |
4973 | * 0 on success. | |
4974 | */ | |
4975 | ||
4976 | static int s2io_ethtool_sset(struct net_device *dev, | |
4977 | struct ethtool_cmd *info) | |
4978 | { | |
1ee6dd77 | 4979 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4980 | if ((info->autoneg == AUTONEG_ENABLE) || |
4981 | (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL)) | |
4982 | return -EINVAL; | |
4983 | else { | |
4984 | s2io_close(sp->dev); | |
4985 | s2io_open(sp->dev); | |
4986 | } | |
4987 | ||
4988 | return 0; | |
4989 | } | |
4990 | ||
4991 | /** | |
20346722 | 4992 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
4993 | * @sp : private member of the device structure, pointer to the |
4994 | * s2io_nic structure. | |
4995 | * @info : pointer to the structure with parameters given by ethtool | |
4996 | * to return link information. | |
4997 | * Description: | |
4998 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
4999 | * Return value : | |
5000 | * return 0 on success. | |
5001 | */ | |
5002 | ||
5003 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
5004 | { | |
1ee6dd77 | 5005 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5006 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
5007 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
5008 | info->port = PORT_FIBRE; | |
1a7eb72b SS |
5009 | |
5010 | /* info->transceiver */ | |
5011 | info->transceiver = XCVR_EXTERNAL; | |
1da177e4 LT |
5012 | |
5013 | if (netif_carrier_ok(sp->dev)) { | |
5014 | info->speed = 10000; | |
5015 | info->duplex = DUPLEX_FULL; | |
5016 | } else { | |
5017 | info->speed = -1; | |
5018 | info->duplex = -1; | |
5019 | } | |
5020 | ||
5021 | info->autoneg = AUTONEG_DISABLE; | |
5022 | return 0; | |
5023 | } | |
5024 | ||
5025 | /** | |
20346722 | 5026 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
5027 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5028 | * s2io_nic structure. |
5029 | * @info : pointer to the structure with parameters given by ethtool to | |
5030 | * return driver information. | |
5031 | * Description: | |
5032 | * Returns driver specefic information like name, version etc.. to ethtool. | |
5033 | * Return value: | |
5034 | * void | |
5035 | */ | |
5036 | ||
5037 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
5038 | struct ethtool_drvinfo *info) | |
5039 | { | |
1ee6dd77 | 5040 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 5041 | |
dbc2309d JL |
5042 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
5043 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
5044 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
5045 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
5046 | info->regdump_len = XENA_REG_SPACE; |
5047 | info->eedump_len = XENA_EEPROM_SPACE; | |
1da177e4 LT |
5048 | } |
5049 | ||
5050 | /** | |
5051 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 5052 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 5053 | * s2io_nic structure. |
20346722 | 5054 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
5055 | * dumping the registers. |
5056 | * @reg_space: The input argumnet into which all the registers are dumped. | |
5057 | * Description: | |
5058 | * Dumps the entire register space of xFrame NIC into the user given | |
5059 | * buffer area. | |
5060 | * Return value : | |
5061 | * void . | |
5062 | */ | |
5063 | ||
5064 | static void s2io_ethtool_gregs(struct net_device *dev, | |
5065 | struct ethtool_regs *regs, void *space) | |
5066 | { | |
5067 | int i; | |
5068 | u64 reg; | |
5069 | u8 *reg_space = (u8 *) space; | |
1ee6dd77 | 5070 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5071 | |
5072 | regs->len = XENA_REG_SPACE; | |
5073 | regs->version = sp->pdev->subsystem_device; | |
5074 | ||
5075 | for (i = 0; i < regs->len; i += 8) { | |
5076 | reg = readq(sp->bar0 + i); | |
5077 | memcpy((reg_space + i), ®, 8); | |
5078 | } | |
5079 | } | |
5080 | ||
5081 | /** | |
5082 | * s2io_phy_id - timer function that alternates adapter LED. | |
20346722 | 5083 | * @data : address of the private member of the device structure, which |
1da177e4 | 5084 | * is a pointer to the s2io_nic structure, provided as an u32. |
20346722 | 5085 | * Description: This is actually the timer function that alternates the |
5086 | * adapter LED bit of the adapter control bit to set/reset every time on | |
5087 | * invocation. The timer is set for 1/2 a second, hence tha NIC blinks | |
1da177e4 LT |
5088 | * once every second. |
5089 | */ | |
5090 | static void s2io_phy_id(unsigned long data) | |
5091 | { | |
1ee6dd77 RB |
5092 | struct s2io_nic *sp = (struct s2io_nic *) data; |
5093 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
5094 | u64 val64 = 0; |
5095 | u16 subid; | |
5096 | ||
5097 | subid = sp->pdev->subsystem_device; | |
541ae68f | 5098 | if ((sp->device_type == XFRAME_II_DEVICE) || |
5099 | ((subid & 0xFF) >= 0x07)) { | |
1da177e4 LT |
5100 | val64 = readq(&bar0->gpio_control); |
5101 | val64 ^= GPIO_CTRL_GPIO_0; | |
5102 | writeq(val64, &bar0->gpio_control); | |
5103 | } else { | |
5104 | val64 = readq(&bar0->adapter_control); | |
5105 | val64 ^= ADAPTER_LED_ON; | |
5106 | writeq(val64, &bar0->adapter_control); | |
5107 | } | |
5108 | ||
5109 | mod_timer(&sp->id_timer, jiffies + HZ / 2); | |
5110 | } | |
5111 | ||
5112 | /** | |
5113 | * s2io_ethtool_idnic - To physically identify the nic on the system. | |
5114 | * @sp : private member of the device structure, which is a pointer to the | |
5115 | * s2io_nic structure. | |
20346722 | 5116 | * @id : pointer to the structure with identification parameters given by |
1da177e4 LT |
5117 | * ethtool. |
5118 | * Description: Used to physically identify the NIC on the system. | |
20346722 | 5119 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 5120 | * identification. |
20346722 | 5121 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 LT |
5122 | * identification is possible only if it's link is up. |
5123 | * Return value: | |
5124 | * int , returns 0 on success | |
5125 | */ | |
5126 | ||
5127 | static int s2io_ethtool_idnic(struct net_device *dev, u32 data) | |
5128 | { | |
5129 | u64 val64 = 0, last_gpio_ctrl_val; | |
1ee6dd77 RB |
5130 | struct s2io_nic *sp = dev->priv; |
5131 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
5132 | u16 subid; |
5133 | ||
5134 | subid = sp->pdev->subsystem_device; | |
5135 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
541ae68f | 5136 | if ((sp->device_type == XFRAME_I_DEVICE) && |
5137 | ((subid & 0xFF) < 0x07)) { | |
1da177e4 LT |
5138 | val64 = readq(&bar0->adapter_control); |
5139 | if (!(val64 & ADAPTER_CNTL_EN)) { | |
5140 | printk(KERN_ERR | |
5141 | "Adapter Link down, cannot blink LED\n"); | |
5142 | return -EFAULT; | |
5143 | } | |
5144 | } | |
5145 | if (sp->id_timer.function == NULL) { | |
5146 | init_timer(&sp->id_timer); | |
5147 | sp->id_timer.function = s2io_phy_id; | |
5148 | sp->id_timer.data = (unsigned long) sp; | |
5149 | } | |
5150 | mod_timer(&sp->id_timer, jiffies); | |
5151 | if (data) | |
20346722 | 5152 | msleep_interruptible(data * HZ); |
1da177e4 | 5153 | else |
20346722 | 5154 | msleep_interruptible(MAX_FLICKER_TIME); |
1da177e4 LT |
5155 | del_timer_sync(&sp->id_timer); |
5156 | ||
541ae68f | 5157 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) { |
1da177e4 LT |
5158 | writeq(last_gpio_ctrl_val, &bar0->gpio_control); |
5159 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
5160 | } | |
5161 | ||
5162 | return 0; | |
5163 | } | |
5164 | ||
0cec35eb SH |
5165 | static void s2io_ethtool_gringparam(struct net_device *dev, |
5166 | struct ethtool_ringparam *ering) | |
5167 | { | |
5168 | struct s2io_nic *sp = dev->priv; | |
5169 | int i,tx_desc_count=0,rx_desc_count=0; | |
5170 | ||
5171 | if (sp->rxd_mode == RXD_MODE_1) | |
5172 | ering->rx_max_pending = MAX_RX_DESC_1; | |
5173 | else if (sp->rxd_mode == RXD_MODE_3B) | |
5174 | ering->rx_max_pending = MAX_RX_DESC_2; | |
0cec35eb SH |
5175 | |
5176 | ering->tx_max_pending = MAX_TX_DESC; | |
8a4bdbaa | 5177 | for (i = 0 ; i < sp->config.tx_fifo_num ; i++) |
0cec35eb | 5178 | tx_desc_count += sp->config.tx_cfg[i].fifo_len; |
8a4bdbaa | 5179 | |
0cec35eb SH |
5180 | DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds); |
5181 | ering->tx_pending = tx_desc_count; | |
5182 | rx_desc_count = 0; | |
8a4bdbaa | 5183 | for (i = 0 ; i < sp->config.rx_ring_num ; i++) |
0cec35eb | 5184 | rx_desc_count += sp->config.rx_cfg[i].num_rxd; |
b6627672 | 5185 | |
0cec35eb SH |
5186 | ering->rx_pending = rx_desc_count; |
5187 | ||
5188 | ering->rx_mini_max_pending = 0; | |
5189 | ering->rx_mini_pending = 0; | |
5190 | if(sp->rxd_mode == RXD_MODE_1) | |
5191 | ering->rx_jumbo_max_pending = MAX_RX_DESC_1; | |
5192 | else if (sp->rxd_mode == RXD_MODE_3B) | |
5193 | ering->rx_jumbo_max_pending = MAX_RX_DESC_2; | |
5194 | ering->rx_jumbo_pending = rx_desc_count; | |
5195 | } | |
5196 | ||
1da177e4 LT |
5197 | /** |
5198 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 | 5199 | * @sp : private member of the device structure, which is a pointer to the |
5200 | * s2io_nic structure. | |
1da177e4 LT |
5201 | * @ep : pointer to the structure with pause parameters given by ethtool. |
5202 | * Description: | |
5203 | * Returns the Pause frame generation and reception capability of the NIC. | |
5204 | * Return value: | |
5205 | * void | |
5206 | */ | |
5207 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
5208 | struct ethtool_pauseparam *ep) | |
5209 | { | |
5210 | u64 val64; | |
1ee6dd77 RB |
5211 | struct s2io_nic *sp = dev->priv; |
5212 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
5213 | |
5214 | val64 = readq(&bar0->rmac_pause_cfg); | |
5215 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
5216 | ep->tx_pause = TRUE; | |
5217 | if (val64 & RMAC_PAUSE_RX_ENABLE) | |
5218 | ep->rx_pause = TRUE; | |
5219 | ep->autoneg = FALSE; | |
5220 | } | |
5221 | ||
5222 | /** | |
5223 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 5224 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5225 | * s2io_nic structure. |
5226 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
5227 | * Description: | |
5228 | * It can be used to set or reset Pause frame generation or reception | |
5229 | * support of the NIC. | |
5230 | * Return value: | |
5231 | * int, returns 0 on Success | |
5232 | */ | |
5233 | ||
5234 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
20346722 | 5235 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
5236 | { |
5237 | u64 val64; | |
1ee6dd77 RB |
5238 | struct s2io_nic *sp = dev->priv; |
5239 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
5240 | |
5241 | val64 = readq(&bar0->rmac_pause_cfg); | |
5242 | if (ep->tx_pause) | |
5243 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
5244 | else | |
5245 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
5246 | if (ep->rx_pause) | |
5247 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
5248 | else | |
5249 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
5250 | writeq(val64, &bar0->rmac_pause_cfg); | |
5251 | return 0; | |
5252 | } | |
5253 | ||
5254 | /** | |
5255 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 5256 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
5257 | * s2io_nic structure. |
5258 | * @off : offset at which the data must be written | |
5259 | * @data : Its an output parameter where the data read at the given | |
20346722 | 5260 | * offset is stored. |
1da177e4 | 5261 | * Description: |
20346722 | 5262 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
5263 | * read data. |
5264 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
5265 | * I2C bus. | |
5266 | * Return value: | |
5267 | * -1 on failure and 0 on success. | |
5268 | */ | |
5269 | ||
5270 | #define S2IO_DEV_ID 5 | |
1ee6dd77 | 5271 | static int read_eeprom(struct s2io_nic * sp, int off, u64 * data) |
1da177e4 LT |
5272 | { |
5273 | int ret = -1; | |
5274 | u32 exit_cnt = 0; | |
5275 | u64 val64; | |
1ee6dd77 | 5276 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5277 | |
ad4ebed0 | 5278 | if (sp->device_type == XFRAME_I_DEVICE) { |
5279 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
5280 | I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ | | |
5281 | I2C_CONTROL_CNTL_START; | |
5282 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
1da177e4 | 5283 | |
ad4ebed0 | 5284 | while (exit_cnt < 5) { |
5285 | val64 = readq(&bar0->i2c_control); | |
5286 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5287 | *data = I2C_CONTROL_GET_DATA(val64); | |
5288 | ret = 0; | |
5289 | break; | |
5290 | } | |
5291 | msleep(50); | |
5292 | exit_cnt++; | |
1da177e4 | 5293 | } |
1da177e4 LT |
5294 | } |
5295 | ||
ad4ebed0 | 5296 | if (sp->device_type == XFRAME_II_DEVICE) { |
5297 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5298 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 5299 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
5300 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5301 | val64 |= SPI_CONTROL_REQ; | |
5302 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5303 | while (exit_cnt < 5) { | |
5304 | val64 = readq(&bar0->spi_control); | |
5305 | if (val64 & SPI_CONTROL_NACK) { | |
5306 | ret = 1; | |
5307 | break; | |
5308 | } else if (val64 & SPI_CONTROL_DONE) { | |
5309 | *data = readq(&bar0->spi_data); | |
5310 | *data &= 0xffffff; | |
5311 | ret = 0; | |
5312 | break; | |
5313 | } | |
5314 | msleep(50); | |
5315 | exit_cnt++; | |
5316 | } | |
5317 | } | |
1da177e4 LT |
5318 | return ret; |
5319 | } | |
5320 | ||
5321 | /** | |
5322 | * write_eeprom - actually writes the relevant part of the data value. | |
5323 | * @sp : private member of the device structure, which is a pointer to the | |
5324 | * s2io_nic structure. | |
5325 | * @off : offset at which the data must be written | |
5326 | * @data : The data that is to be written | |
20346722 | 5327 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
5328 | * the Eeprom. (max of 3) |
5329 | * Description: | |
5330 | * Actually writes the relevant part of the data value into the Eeprom | |
5331 | * through the I2C bus. | |
5332 | * Return value: | |
5333 | * 0 on success, -1 on failure. | |
5334 | */ | |
5335 | ||
1ee6dd77 | 5336 | static int write_eeprom(struct s2io_nic * sp, int off, u64 data, int cnt) |
1da177e4 LT |
5337 | { |
5338 | int exit_cnt = 0, ret = -1; | |
5339 | u64 val64; | |
1ee6dd77 | 5340 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5341 | |
ad4ebed0 | 5342 | if (sp->device_type == XFRAME_I_DEVICE) { |
5343 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
5344 | I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) | | |
5345 | I2C_CONTROL_CNTL_START; | |
5346 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
5347 | ||
5348 | while (exit_cnt < 5) { | |
5349 | val64 = readq(&bar0->i2c_control); | |
5350 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5351 | if (!(val64 & I2C_CONTROL_NACK)) | |
5352 | ret = 0; | |
5353 | break; | |
5354 | } | |
5355 | msleep(50); | |
5356 | exit_cnt++; | |
5357 | } | |
5358 | } | |
1da177e4 | 5359 | |
ad4ebed0 | 5360 | if (sp->device_type == XFRAME_II_DEVICE) { |
5361 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
5362 | writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data); | |
5363 | ||
5364 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5365 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 5366 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
5367 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5368 | val64 |= SPI_CONTROL_REQ; | |
5369 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5370 | while (exit_cnt < 5) { | |
5371 | val64 = readq(&bar0->spi_control); | |
5372 | if (val64 & SPI_CONTROL_NACK) { | |
5373 | ret = 1; | |
5374 | break; | |
5375 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 5376 | ret = 0; |
ad4ebed0 | 5377 | break; |
5378 | } | |
5379 | msleep(50); | |
5380 | exit_cnt++; | |
1da177e4 | 5381 | } |
1da177e4 | 5382 | } |
1da177e4 LT |
5383 | return ret; |
5384 | } | |
1ee6dd77 | 5385 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 5386 | { |
b41477f3 AR |
5387 | u8 *vpd_data; |
5388 | u8 data; | |
9dc737a7 AR |
5389 | int i=0, cnt, fail = 0; |
5390 | int vpd_addr = 0x80; | |
5391 | ||
5392 | if (nic->device_type == XFRAME_II_DEVICE) { | |
5393 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
5394 | vpd_addr = 0x80; | |
5395 | } | |
5396 | else { | |
5397 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); | |
5398 | vpd_addr = 0x50; | |
5399 | } | |
19a60522 | 5400 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 5401 | |
b41477f3 | 5402 | vpd_data = kmalloc(256, GFP_KERNEL); |
c53d4945 SH |
5403 | if (!vpd_data) { |
5404 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; | |
b41477f3 | 5405 | return; |
c53d4945 | 5406 | } |
491976b2 | 5407 | nic->mac_control.stats_info->sw_stat.mem_allocated += 256; |
b41477f3 | 5408 | |
9dc737a7 AR |
5409 | for (i = 0; i < 256; i +=4 ) { |
5410 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); | |
5411 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
5412 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
5413 | for (cnt = 0; cnt <5; cnt++) { | |
5414 | msleep(2); | |
5415 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
5416 | if (data == 0x80) | |
5417 | break; | |
5418 | } | |
5419 | if (cnt >= 5) { | |
5420 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
5421 | fail = 1; | |
5422 | break; | |
5423 | } | |
5424 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
5425 | (u32 *)&vpd_data[i]); | |
5426 | } | |
19a60522 SS |
5427 | |
5428 | if(!fail) { | |
5429 | /* read serial number of adapter */ | |
5430 | for (cnt = 0; cnt < 256; cnt++) { | |
5431 | if ((vpd_data[cnt] == 'S') && | |
5432 | (vpd_data[cnt+1] == 'N') && | |
5433 | (vpd_data[cnt+2] < VPD_STRING_LEN)) { | |
5434 | memset(nic->serial_num, 0, VPD_STRING_LEN); | |
5435 | memcpy(nic->serial_num, &vpd_data[cnt + 3], | |
5436 | vpd_data[cnt+2]); | |
5437 | break; | |
5438 | } | |
5439 | } | |
5440 | } | |
5441 | ||
5442 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { | |
9dc737a7 AR |
5443 | memset(nic->product_name, 0, vpd_data[1]); |
5444 | memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); | |
5445 | } | |
b41477f3 | 5446 | kfree(vpd_data); |
491976b2 | 5447 | nic->mac_control.stats_info->sw_stat.mem_freed += 256; |
9dc737a7 AR |
5448 | } |
5449 | ||
1da177e4 LT |
5450 | /** |
5451 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
5452 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 5453 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5454 | * containing all relevant information. |
5455 | * @data_buf : user defined value to be written into Eeprom. | |
5456 | * Description: Reads the values stored in the Eeprom at given offset | |
5457 | * for a given length. Stores these values int the input argument data | |
5458 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
5459 | * Return value: | |
5460 | * int 0 on success | |
5461 | */ | |
5462 | ||
5463 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
20346722 | 5464 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 5465 | { |
ad4ebed0 | 5466 | u32 i, valid; |
5467 | u64 data; | |
1ee6dd77 | 5468 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5469 | |
5470 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
5471 | ||
5472 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
5473 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
5474 | ||
5475 | for (i = 0; i < eeprom->len; i += 4) { | |
5476 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
5477 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
5478 | return -EFAULT; | |
5479 | } | |
5480 | valid = INV(data); | |
5481 | memcpy((data_buf + i), &valid, 4); | |
5482 | } | |
5483 | return 0; | |
5484 | } | |
5485 | ||
5486 | /** | |
5487 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
5488 | * @sp : private member of the device structure, which is a pointer to the | |
5489 | * s2io_nic structure. | |
20346722 | 5490 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5491 | * containing all relevant information. |
5492 | * @data_buf ; user defined value to be written into Eeprom. | |
5493 | * Description: | |
5494 | * Tries to write the user provided value in the Eeprom, at the offset | |
5495 | * given by the user. | |
5496 | * Return value: | |
5497 | * 0 on success, -EFAULT on failure. | |
5498 | */ | |
5499 | ||
5500 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5501 | struct ethtool_eeprom *eeprom, | |
5502 | u8 * data_buf) | |
5503 | { | |
5504 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5505 | u64 valid = 0, data; |
1ee6dd77 | 5506 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5507 | |
5508 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5509 | DBG_PRINT(ERR_DBG, | |
5510 | "ETHTOOL_WRITE_EEPROM Err: Magic value "); | |
5511 | DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n", | |
5512 | eeprom->magic); | |
5513 | return -EFAULT; | |
5514 | } | |
5515 | ||
5516 | while (len) { | |
5517 | data = (u32) data_buf[cnt] & 0x000000FF; | |
5518 | if (data) { | |
5519 | valid = (u32) (data << 24); | |
5520 | } else | |
5521 | valid = data; | |
5522 | ||
5523 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5524 | DBG_PRINT(ERR_DBG, | |
5525 | "ETHTOOL_WRITE_EEPROM Err: Cannot "); | |
5526 | DBG_PRINT(ERR_DBG, | |
5527 | "write into the specified offset\n"); | |
5528 | return -EFAULT; | |
5529 | } | |
5530 | cnt++; | |
5531 | len--; | |
5532 | } | |
5533 | ||
5534 | return 0; | |
5535 | } | |
5536 | ||
5537 | /** | |
20346722 | 5538 | * s2io_register_test - reads and writes into all clock domains. |
5539 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5540 | * s2io_nic structure. |
5541 | * @data : variable that returns the result of each of the test conducted b | |
5542 | * by the driver. | |
5543 | * Description: | |
5544 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5545 | * see that registers in all the three regions are accessible. | |
5546 | * Return value: | |
5547 | * 0 on success. | |
5548 | */ | |
5549 | ||
1ee6dd77 | 5550 | static int s2io_register_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5551 | { |
1ee6dd77 | 5552 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5553 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5554 | int fail = 0; |
5555 | ||
20346722 | 5556 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5557 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 LT |
5558 | fail = 1; |
5559 | DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n"); | |
5560 | } | |
5561 | ||
5562 | val64 = readq(&bar0->rmac_pause_cfg); | |
5563 | if (val64 != 0xc000ffff00000000ULL) { | |
5564 | fail = 1; | |
5565 | DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n"); | |
5566 | } | |
5567 | ||
5568 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5569 | if (sp->device_type == XFRAME_II_DEVICE) |
5570 | exp_val = 0x0404040404040404ULL; | |
5571 | else | |
5572 | exp_val = 0x0808080808080808ULL; | |
5573 | if (val64 != exp_val) { | |
1da177e4 LT |
5574 | fail = 1; |
5575 | DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n"); | |
5576 | } | |
5577 | ||
5578 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5579 | if (val64 != 0x000000001923141EULL) { | |
5580 | fail = 1; | |
5581 | DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n"); | |
5582 | } | |
5583 | ||
5584 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5585 | writeq(val64, &bar0->xmsi_data); | |
5586 | val64 = readq(&bar0->xmsi_data); | |
5587 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5588 | fail = 1; | |
5589 | DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n"); | |
5590 | } | |
5591 | ||
5592 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5593 | writeq(val64, &bar0->xmsi_data); | |
5594 | val64 = readq(&bar0->xmsi_data); | |
5595 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5596 | fail = 1; | |
5597 | DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n"); | |
5598 | } | |
5599 | ||
5600 | *data = fail; | |
ad4ebed0 | 5601 | return fail; |
1da177e4 LT |
5602 | } |
5603 | ||
5604 | /** | |
20346722 | 5605 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5606 | * @sp : private member of the device structure, which is a pointer to the |
5607 | * s2io_nic structure. | |
5608 | * @data:variable that returns the result of each of the test conducted by | |
5609 | * the driver. | |
5610 | * Description: | |
20346722 | 5611 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5612 | * register. |
5613 | * Return value: | |
5614 | * 0 on success. | |
5615 | */ | |
5616 | ||
1ee6dd77 | 5617 | static int s2io_eeprom_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5618 | { |
5619 | int fail = 0; | |
ad4ebed0 | 5620 | u64 ret_data, org_4F0, org_7F0; |
5621 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5622 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5623 | |
5624 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5625 | /* Note that SPI interface allows write access to all areas |
5626 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5627 | */ | |
5628 | if (sp->device_type == XFRAME_I_DEVICE) | |
5629 | if (!write_eeprom(sp, 0, 0, 3)) | |
5630 | fail = 1; | |
5631 | ||
5632 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5633 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5634 | saved_4F0 = 1; | |
5635 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5636 | saved_7F0 = 1; | |
1da177e4 LT |
5637 | |
5638 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5639 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5640 | fail = 1; |
5641 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5642 | fail = 1; | |
5643 | ||
ad4ebed0 | 5644 | if (ret_data != 0x012345) { |
26b7625c AM |
5645 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
5646 | "Data written %llx Data read %llx\n", | |
5647 | dev->name, (unsigned long long)0x12345, | |
5648 | (unsigned long long)ret_data); | |
1da177e4 | 5649 | fail = 1; |
ad4ebed0 | 5650 | } |
1da177e4 LT |
5651 | |
5652 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5653 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5654 | |
5655 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 5656 | if (sp->device_type == XFRAME_I_DEVICE) |
5657 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
5658 | fail = 1; | |
1da177e4 | 5659 | |
ad4ebed0 | 5660 | /* Test Write Request at offset 0x7f0 */ |
5661 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 5662 | fail = 1; |
ad4ebed0 | 5663 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
5664 | fail = 1; |
5665 | ||
ad4ebed0 | 5666 | if (ret_data != 0x012345) { |
26b7625c AM |
5667 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
5668 | "Data written %llx Data read %llx\n", | |
5669 | dev->name, (unsigned long long)0x12345, | |
5670 | (unsigned long long)ret_data); | |
1da177e4 | 5671 | fail = 1; |
ad4ebed0 | 5672 | } |
1da177e4 LT |
5673 | |
5674 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5675 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 5676 | |
ad4ebed0 | 5677 | if (sp->device_type == XFRAME_I_DEVICE) { |
5678 | /* Test Write Error at offset 0x80 */ | |
5679 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
5680 | fail = 1; | |
1da177e4 | 5681 | |
ad4ebed0 | 5682 | /* Test Write Error at offset 0xfc */ |
5683 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
5684 | fail = 1; | |
1da177e4 | 5685 | |
ad4ebed0 | 5686 | /* Test Write Error at offset 0x100 */ |
5687 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
5688 | fail = 1; | |
1da177e4 | 5689 | |
ad4ebed0 | 5690 | /* Test Write Error at offset 4ec */ |
5691 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
5692 | fail = 1; | |
5693 | } | |
5694 | ||
5695 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
5696 | if (saved_4F0) | |
5697 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
5698 | if (saved_7F0) | |
5699 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
5700 | |
5701 | *data = fail; | |
ad4ebed0 | 5702 | return fail; |
1da177e4 LT |
5703 | } |
5704 | ||
5705 | /** | |
5706 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 5707 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 5708 | * s2io_nic structure. |
20346722 | 5709 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
5710 | * the driver. |
5711 | * Description: | |
5712 | * This invokes the MemBist test of the card. We give around | |
5713 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 5714 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
5715 | * Return value: |
5716 | * 0 on success and -1 on failure. | |
5717 | */ | |
5718 | ||
1ee6dd77 | 5719 | static int s2io_bist_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5720 | { |
5721 | u8 bist = 0; | |
5722 | int cnt = 0, ret = -1; | |
5723 | ||
5724 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5725 | bist |= PCI_BIST_START; | |
5726 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
5727 | ||
5728 | while (cnt < 20) { | |
5729 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5730 | if (!(bist & PCI_BIST_START)) { | |
5731 | *data = (bist & PCI_BIST_CODE_MASK); | |
5732 | ret = 0; | |
5733 | break; | |
5734 | } | |
5735 | msleep(100); | |
5736 | cnt++; | |
5737 | } | |
5738 | ||
5739 | return ret; | |
5740 | } | |
5741 | ||
5742 | /** | |
20346722 | 5743 | * s2io-link_test - verifies the link state of the nic |
5744 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5745 | * s2io_nic structure. |
5746 | * @data: variable that returns the result of each of the test conducted by | |
5747 | * the driver. | |
5748 | * Description: | |
20346722 | 5749 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
5750 | * argument 'data' appropriately. |
5751 | * Return value: | |
5752 | * 0 on success. | |
5753 | */ | |
5754 | ||
1ee6dd77 | 5755 | static int s2io_link_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5756 | { |
1ee6dd77 | 5757 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5758 | u64 val64; |
5759 | ||
5760 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 5761 | if(!(LINK_IS_UP(val64))) |
1da177e4 | 5762 | *data = 1; |
c92ca04b AR |
5763 | else |
5764 | *data = 0; | |
1da177e4 | 5765 | |
b41477f3 | 5766 | return *data; |
1da177e4 LT |
5767 | } |
5768 | ||
5769 | /** | |
20346722 | 5770 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
5771 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 5772 | * s2io_nic structure. |
20346722 | 5773 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
5774 | * conducted by the driver. |
5775 | * Description: | |
20346722 | 5776 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
5777 | * access to the RldRam chip on the NIC. |
5778 | * Return value: | |
5779 | * 0 on success. | |
5780 | */ | |
5781 | ||
1ee6dd77 | 5782 | static int s2io_rldram_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5783 | { |
1ee6dd77 | 5784 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5785 | u64 val64; |
ad4ebed0 | 5786 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
5787 | |
5788 | val64 = readq(&bar0->adapter_control); | |
5789 | val64 &= ~ADAPTER_ECC_EN; | |
5790 | writeq(val64, &bar0->adapter_control); | |
5791 | ||
5792 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5793 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 5794 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
5795 | |
5796 | val64 = readq(&bar0->mc_rldram_mrs); | |
5797 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
5798 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5799 | ||
5800 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
5801 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5802 | ||
5803 | while (iteration < 2) { | |
5804 | val64 = 0x55555555aaaa0000ULL; | |
5805 | if (iteration == 1) { | |
5806 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5807 | } | |
5808 | writeq(val64, &bar0->mc_rldram_test_d0); | |
5809 | ||
5810 | val64 = 0xaaaa5a5555550000ULL; | |
5811 | if (iteration == 1) { | |
5812 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5813 | } | |
5814 | writeq(val64, &bar0->mc_rldram_test_d1); | |
5815 | ||
5816 | val64 = 0x55aaaaaaaa5a0000ULL; | |
5817 | if (iteration == 1) { | |
5818 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5819 | } | |
5820 | writeq(val64, &bar0->mc_rldram_test_d2); | |
5821 | ||
ad4ebed0 | 5822 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
5823 | writeq(val64, &bar0->mc_rldram_test_add); |
5824 | ||
ad4ebed0 | 5825 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE | |
5826 | MC_RLDRAM_TEST_GO; | |
5827 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5828 | |
5829 | for (cnt = 0; cnt < 5; cnt++) { | |
5830 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5831 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5832 | break; | |
5833 | msleep(200); | |
5834 | } | |
5835 | ||
5836 | if (cnt == 5) | |
5837 | break; | |
5838 | ||
ad4ebed0 | 5839 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
5840 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5841 | |
5842 | for (cnt = 0; cnt < 5; cnt++) { | |
5843 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5844 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5845 | break; | |
5846 | msleep(500); | |
5847 | } | |
5848 | ||
5849 | if (cnt == 5) | |
5850 | break; | |
5851 | ||
5852 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 5853 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
5854 | test_fail = 1; | |
1da177e4 LT |
5855 | |
5856 | iteration++; | |
5857 | } | |
5858 | ||
ad4ebed0 | 5859 | *data = test_fail; |
1da177e4 | 5860 | |
ad4ebed0 | 5861 | /* Bring the adapter out of test mode */ |
5862 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
5863 | ||
5864 | return test_fail; | |
1da177e4 LT |
5865 | } |
5866 | ||
5867 | /** | |
5868 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
5869 | * @sp : private member of the device structure, which is a pointer to the | |
5870 | * s2io_nic structure. | |
5871 | * @ethtest : pointer to a ethtool command specific structure that will be | |
5872 | * returned to the user. | |
20346722 | 5873 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
5874 | * conducted by the driver. |
5875 | * Description: | |
5876 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
5877 | * the health of the card. | |
5878 | * Return value: | |
5879 | * void | |
5880 | */ | |
5881 | ||
5882 | static void s2io_ethtool_test(struct net_device *dev, | |
5883 | struct ethtool_test *ethtest, | |
5884 | uint64_t * data) | |
5885 | { | |
1ee6dd77 | 5886 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5887 | int orig_state = netif_running(sp->dev); |
5888 | ||
5889 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
5890 | /* Offline Tests. */ | |
20346722 | 5891 | if (orig_state) |
1da177e4 | 5892 | s2io_close(sp->dev); |
1da177e4 LT |
5893 | |
5894 | if (s2io_register_test(sp, &data[0])) | |
5895 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5896 | ||
5897 | s2io_reset(sp); | |
1da177e4 LT |
5898 | |
5899 | if (s2io_rldram_test(sp, &data[3])) | |
5900 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5901 | ||
5902 | s2io_reset(sp); | |
1da177e4 LT |
5903 | |
5904 | if (s2io_eeprom_test(sp, &data[1])) | |
5905 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5906 | ||
5907 | if (s2io_bist_test(sp, &data[4])) | |
5908 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5909 | ||
5910 | if (orig_state) | |
5911 | s2io_open(sp->dev); | |
5912 | ||
5913 | data[2] = 0; | |
5914 | } else { | |
5915 | /* Online Tests. */ | |
5916 | if (!orig_state) { | |
5917 | DBG_PRINT(ERR_DBG, | |
5918 | "%s: is not up, cannot run test\n", | |
5919 | dev->name); | |
5920 | data[0] = -1; | |
5921 | data[1] = -1; | |
5922 | data[2] = -1; | |
5923 | data[3] = -1; | |
5924 | data[4] = -1; | |
5925 | } | |
5926 | ||
5927 | if (s2io_link_test(sp, &data[2])) | |
5928 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5929 | ||
5930 | data[0] = 0; | |
5931 | data[1] = 0; | |
5932 | data[3] = 0; | |
5933 | data[4] = 0; | |
5934 | } | |
5935 | } | |
5936 | ||
5937 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
5938 | struct ethtool_stats *estats, | |
5939 | u64 * tmp_stats) | |
5940 | { | |
8116f3cf | 5941 | int i = 0, k; |
1ee6dd77 RB |
5942 | struct s2io_nic *sp = dev->priv; |
5943 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
1da177e4 | 5944 | |
7ba013ac | 5945 | s2io_updt_stats(sp); |
541ae68f | 5946 | tmp_stats[i++] = |
5947 | (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 | | |
5948 | le32_to_cpu(stat_info->tmac_frms); | |
5949 | tmp_stats[i++] = | |
5950 | (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 | | |
5951 | le32_to_cpu(stat_info->tmac_data_octets); | |
1da177e4 | 5952 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms); |
541ae68f | 5953 | tmp_stats[i++] = |
5954 | (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 | | |
5955 | le32_to_cpu(stat_info->tmac_mcst_frms); | |
5956 | tmp_stats[i++] = | |
5957 | (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 | | |
5958 | le32_to_cpu(stat_info->tmac_bcst_frms); | |
1da177e4 | 5959 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms); |
bd1034f0 AR |
5960 | tmp_stats[i++] = |
5961 | (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 | | |
5962 | le32_to_cpu(stat_info->tmac_ttl_octets); | |
5963 | tmp_stats[i++] = | |
5964 | (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 | | |
5965 | le32_to_cpu(stat_info->tmac_ucst_frms); | |
5966 | tmp_stats[i++] = | |
5967 | (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 | | |
5968 | le32_to_cpu(stat_info->tmac_nucst_frms); | |
541ae68f | 5969 | tmp_stats[i++] = |
5970 | (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 | | |
5971 | le32_to_cpu(stat_info->tmac_any_err_frms); | |
bd1034f0 | 5972 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets); |
1da177e4 | 5973 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets); |
541ae68f | 5974 | tmp_stats[i++] = |
5975 | (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 | | |
5976 | le32_to_cpu(stat_info->tmac_vld_ip); | |
5977 | tmp_stats[i++] = | |
5978 | (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 | | |
5979 | le32_to_cpu(stat_info->tmac_drop_ip); | |
5980 | tmp_stats[i++] = | |
5981 | (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 | | |
5982 | le32_to_cpu(stat_info->tmac_icmp); | |
5983 | tmp_stats[i++] = | |
5984 | (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 | | |
5985 | le32_to_cpu(stat_info->tmac_rst_tcp); | |
1da177e4 | 5986 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp); |
541ae68f | 5987 | tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 | |
5988 | le32_to_cpu(stat_info->tmac_udp); | |
5989 | tmp_stats[i++] = | |
5990 | (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 | | |
5991 | le32_to_cpu(stat_info->rmac_vld_frms); | |
5992 | tmp_stats[i++] = | |
5993 | (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 | | |
5994 | le32_to_cpu(stat_info->rmac_data_octets); | |
1da177e4 LT |
5995 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms); |
5996 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms); | |
541ae68f | 5997 | tmp_stats[i++] = |
5998 | (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 | | |
5999 | le32_to_cpu(stat_info->rmac_vld_mcst_frms); | |
6000 | tmp_stats[i++] = | |
6001 | (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 | | |
6002 | le32_to_cpu(stat_info->rmac_vld_bcst_frms); | |
1da177e4 | 6003 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms); |
bd1034f0 | 6004 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms); |
1da177e4 LT |
6005 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms); |
6006 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms); | |
bd1034f0 AR |
6007 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms); |
6008 | tmp_stats[i++] = | |
6009 | (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 | | |
6010 | le32_to_cpu(stat_info->rmac_ttl_octets); | |
6011 | tmp_stats[i++] = | |
6012 | (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow) | |
6013 | << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms); | |
6014 | tmp_stats[i++] = | |
6015 | (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow) | |
6016 | << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms); | |
541ae68f | 6017 | tmp_stats[i++] = |
6018 | (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 | | |
6019 | le32_to_cpu(stat_info->rmac_discarded_frms); | |
bd1034f0 AR |
6020 | tmp_stats[i++] = |
6021 | (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow) | |
6022 | << 32 | le32_to_cpu(stat_info->rmac_drop_events); | |
6023 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets); | |
6024 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms); | |
541ae68f | 6025 | tmp_stats[i++] = |
6026 | (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 | | |
6027 | le32_to_cpu(stat_info->rmac_usized_frms); | |
6028 | tmp_stats[i++] = | |
6029 | (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 | | |
6030 | le32_to_cpu(stat_info->rmac_osized_frms); | |
6031 | tmp_stats[i++] = | |
6032 | (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 | | |
6033 | le32_to_cpu(stat_info->rmac_frag_frms); | |
6034 | tmp_stats[i++] = | |
6035 | (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 | | |
6036 | le32_to_cpu(stat_info->rmac_jabber_frms); | |
bd1034f0 AR |
6037 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms); |
6038 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms); | |
6039 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms); | |
6040 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms); | |
6041 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms); | |
6042 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms); | |
6043 | tmp_stats[i++] = | |
6044 | (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 | | |
541ae68f | 6045 | le32_to_cpu(stat_info->rmac_ip); |
1da177e4 LT |
6046 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets); |
6047 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip); | |
bd1034f0 AR |
6048 | tmp_stats[i++] = |
6049 | (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 | | |
541ae68f | 6050 | le32_to_cpu(stat_info->rmac_drop_ip); |
bd1034f0 AR |
6051 | tmp_stats[i++] = |
6052 | (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 | | |
541ae68f | 6053 | le32_to_cpu(stat_info->rmac_icmp); |
1da177e4 | 6054 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp); |
bd1034f0 AR |
6055 | tmp_stats[i++] = |
6056 | (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 | | |
541ae68f | 6057 | le32_to_cpu(stat_info->rmac_udp); |
6058 | tmp_stats[i++] = | |
6059 | (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 | | |
6060 | le32_to_cpu(stat_info->rmac_err_drp_udp); | |
bd1034f0 AR |
6061 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym); |
6062 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0); | |
6063 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1); | |
6064 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2); | |
6065 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3); | |
6066 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4); | |
6067 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5); | |
6068 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6); | |
6069 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7); | |
6070 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0); | |
6071 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1); | |
6072 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2); | |
6073 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3); | |
6074 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4); | |
6075 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5); | |
6076 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6); | |
6077 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7); | |
541ae68f | 6078 | tmp_stats[i++] = |
6079 | (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 | | |
6080 | le32_to_cpu(stat_info->rmac_pause_cnt); | |
bd1034f0 AR |
6081 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt); |
6082 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt); | |
541ae68f | 6083 | tmp_stats[i++] = |
6084 | (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 | | |
6085 | le32_to_cpu(stat_info->rmac_accepted_ip); | |
1da177e4 | 6086 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp); |
bd1034f0 AR |
6087 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt); |
6088 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt); | |
6089 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt); | |
6090 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt); | |
6091 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt); | |
6092 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt); | |
6093 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt); | |
6094 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt); | |
6095 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt); | |
6096 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt); | |
6097 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt); | |
6098 | tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt); | |
6099 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt); | |
6100 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt); | |
6101 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt); | |
6102 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt); | |
6103 | tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt); | |
6104 | tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt); | |
fa1f0cb3 SS |
6105 | |
6106 | /* Enhanced statistics exist only for Hercules */ | |
6107 | if(sp->device_type == XFRAME_II_DEVICE) { | |
6108 | tmp_stats[i++] = | |
6109 | le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms); | |
6110 | tmp_stats[i++] = | |
6111 | le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms); | |
6112 | tmp_stats[i++] = | |
6113 | le64_to_cpu(stat_info->rmac_ttl_8192_max_frms); | |
6114 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms); | |
6115 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms); | |
6116 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms); | |
6117 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms); | |
6118 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms); | |
6119 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard); | |
6120 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard); | |
6121 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard); | |
6122 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard); | |
6123 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard); | |
6124 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard); | |
6125 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard); | |
6126 | tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt); | |
6127 | } | |
6128 | ||
7ba013ac | 6129 | tmp_stats[i++] = 0; |
6130 | tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs; | |
6131 | tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs; | |
bd1034f0 AR |
6132 | tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt; |
6133 | tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt; | |
6134 | tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt; | |
6135 | tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt; | |
8116f3cf SS |
6136 | for (k = 0; k < MAX_RX_RINGS; k++) |
6137 | tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt[k]; | |
bd1034f0 AR |
6138 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high; |
6139 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low; | |
6140 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high; | |
6141 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low; | |
6142 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high; | |
6143 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low; | |
6144 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high; | |
6145 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low; | |
6146 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high; | |
6147 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low; | |
6148 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high; | |
6149 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low; | |
7d3d0439 RA |
6150 | tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt; |
6151 | tmp_stats[i++] = stat_info->sw_stat.sending_both; | |
6152 | tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts; | |
6153 | tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts; | |
fe931395 | 6154 | if (stat_info->sw_stat.num_aggregations) { |
bd1034f0 AR |
6155 | u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated; |
6156 | int count = 0; | |
6aa20a22 | 6157 | /* |
bd1034f0 AR |
6158 | * Since 64-bit divide does not work on all platforms, |
6159 | * do repeated subtraction. | |
6160 | */ | |
6161 | while (tmp >= stat_info->sw_stat.num_aggregations) { | |
6162 | tmp -= stat_info->sw_stat.num_aggregations; | |
6163 | count++; | |
6164 | } | |
6165 | tmp_stats[i++] = count; | |
fe931395 | 6166 | } |
bd1034f0 AR |
6167 | else |
6168 | tmp_stats[i++] = 0; | |
c53d4945 | 6169 | tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt; |
491abf25 | 6170 | tmp_stats[i++] = stat_info->sw_stat.pci_map_fail_cnt; |
c53d4945 | 6171 | tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt; |
491976b2 SH |
6172 | tmp_stats[i++] = stat_info->sw_stat.mem_allocated; |
6173 | tmp_stats[i++] = stat_info->sw_stat.mem_freed; | |
6174 | tmp_stats[i++] = stat_info->sw_stat.link_up_cnt; | |
6175 | tmp_stats[i++] = stat_info->sw_stat.link_down_cnt; | |
6176 | tmp_stats[i++] = stat_info->sw_stat.link_up_time; | |
6177 | tmp_stats[i++] = stat_info->sw_stat.link_down_time; | |
6178 | ||
6179 | tmp_stats[i++] = stat_info->sw_stat.tx_buf_abort_cnt; | |
6180 | tmp_stats[i++] = stat_info->sw_stat.tx_desc_abort_cnt; | |
6181 | tmp_stats[i++] = stat_info->sw_stat.tx_parity_err_cnt; | |
6182 | tmp_stats[i++] = stat_info->sw_stat.tx_link_loss_cnt; | |
6183 | tmp_stats[i++] = stat_info->sw_stat.tx_list_proc_err_cnt; | |
6184 | ||
6185 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_err_cnt; | |
6186 | tmp_stats[i++] = stat_info->sw_stat.rx_abort_cnt; | |
6187 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_abort_cnt; | |
6188 | tmp_stats[i++] = stat_info->sw_stat.rx_rda_fail_cnt; | |
6189 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_prot_cnt; | |
6190 | tmp_stats[i++] = stat_info->sw_stat.rx_fcs_err_cnt; | |
6191 | tmp_stats[i++] = stat_info->sw_stat.rx_buf_size_err_cnt; | |
6192 | tmp_stats[i++] = stat_info->sw_stat.rx_rxd_corrupt_cnt; | |
6193 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_err_cnt; | |
8116f3cf SS |
6194 | tmp_stats[i++] = stat_info->sw_stat.tda_err_cnt; |
6195 | tmp_stats[i++] = stat_info->sw_stat.pfc_err_cnt; | |
6196 | tmp_stats[i++] = stat_info->sw_stat.pcc_err_cnt; | |
6197 | tmp_stats[i++] = stat_info->sw_stat.tti_err_cnt; | |
6198 | tmp_stats[i++] = stat_info->sw_stat.tpa_err_cnt; | |
6199 | tmp_stats[i++] = stat_info->sw_stat.sm_err_cnt; | |
6200 | tmp_stats[i++] = stat_info->sw_stat.lso_err_cnt; | |
6201 | tmp_stats[i++] = stat_info->sw_stat.mac_tmac_err_cnt; | |
6202 | tmp_stats[i++] = stat_info->sw_stat.mac_rmac_err_cnt; | |
6203 | tmp_stats[i++] = stat_info->sw_stat.xgxs_txgxs_err_cnt; | |
6204 | tmp_stats[i++] = stat_info->sw_stat.xgxs_rxgxs_err_cnt; | |
6205 | tmp_stats[i++] = stat_info->sw_stat.rc_err_cnt; | |
6206 | tmp_stats[i++] = stat_info->sw_stat.prc_pcix_err_cnt; | |
6207 | tmp_stats[i++] = stat_info->sw_stat.rpa_err_cnt; | |
6208 | tmp_stats[i++] = stat_info->sw_stat.rda_err_cnt; | |
6209 | tmp_stats[i++] = stat_info->sw_stat.rti_err_cnt; | |
6210 | tmp_stats[i++] = stat_info->sw_stat.mc_err_cnt; | |
1da177e4 LT |
6211 | } |
6212 | ||
ac1f60db | 6213 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 LT |
6214 | { |
6215 | return (XENA_REG_SPACE); | |
6216 | } | |
6217 | ||
6218 | ||
ac1f60db | 6219 | static u32 s2io_ethtool_get_rx_csum(struct net_device * dev) |
1da177e4 | 6220 | { |
1ee6dd77 | 6221 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6222 | |
6223 | return (sp->rx_csum); | |
6224 | } | |
ac1f60db AB |
6225 | |
6226 | static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
1da177e4 | 6227 | { |
1ee6dd77 | 6228 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6229 | |
6230 | if (data) | |
6231 | sp->rx_csum = 1; | |
6232 | else | |
6233 | sp->rx_csum = 0; | |
6234 | ||
6235 | return 0; | |
6236 | } | |
ac1f60db AB |
6237 | |
6238 | static int s2io_get_eeprom_len(struct net_device *dev) | |
1da177e4 LT |
6239 | { |
6240 | return (XENA_EEPROM_SPACE); | |
6241 | } | |
6242 | ||
b9f2c044 | 6243 | static int s2io_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 6244 | { |
b9f2c044 JG |
6245 | struct s2io_nic *sp = dev->priv; |
6246 | ||
6247 | switch (sset) { | |
6248 | case ETH_SS_TEST: | |
6249 | return S2IO_TEST_LEN; | |
6250 | case ETH_SS_STATS: | |
6251 | switch(sp->device_type) { | |
6252 | case XFRAME_I_DEVICE: | |
6253 | return XFRAME_I_STAT_LEN; | |
6254 | case XFRAME_II_DEVICE: | |
6255 | return XFRAME_II_STAT_LEN; | |
6256 | default: | |
6257 | return 0; | |
6258 | } | |
6259 | default: | |
6260 | return -EOPNOTSUPP; | |
6261 | } | |
1da177e4 | 6262 | } |
ac1f60db AB |
6263 | |
6264 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
6265 | u32 stringset, u8 * data) | |
1da177e4 | 6266 | { |
fa1f0cb3 SS |
6267 | int stat_size = 0; |
6268 | struct s2io_nic *sp = dev->priv; | |
6269 | ||
1da177e4 LT |
6270 | switch (stringset) { |
6271 | case ETH_SS_TEST: | |
6272 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
6273 | break; | |
6274 | case ETH_SS_STATS: | |
fa1f0cb3 SS |
6275 | stat_size = sizeof(ethtool_xena_stats_keys); |
6276 | memcpy(data, ðtool_xena_stats_keys,stat_size); | |
6277 | if(sp->device_type == XFRAME_II_DEVICE) { | |
6278 | memcpy(data + stat_size, | |
6279 | ðtool_enhanced_stats_keys, | |
6280 | sizeof(ethtool_enhanced_stats_keys)); | |
6281 | stat_size += sizeof(ethtool_enhanced_stats_keys); | |
6282 | } | |
6283 | ||
6284 | memcpy(data + stat_size, ðtool_driver_stats_keys, | |
6285 | sizeof(ethtool_driver_stats_keys)); | |
1da177e4 LT |
6286 | } |
6287 | } | |
1da177e4 | 6288 | |
ac1f60db | 6289 | static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 LT |
6290 | { |
6291 | if (data) | |
6292 | dev->features |= NETIF_F_IP_CSUM; | |
6293 | else | |
6294 | dev->features &= ~NETIF_F_IP_CSUM; | |
6295 | ||
6296 | return 0; | |
6297 | } | |
6298 | ||
75c30b13 AR |
6299 | static u32 s2io_ethtool_op_get_tso(struct net_device *dev) |
6300 | { | |
6301 | return (dev->features & NETIF_F_TSO) != 0; | |
6302 | } | |
6303 | static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) | |
6304 | { | |
6305 | if (data) | |
6306 | dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); | |
6307 | else | |
6308 | dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
6309 | ||
6310 | return 0; | |
6311 | } | |
1da177e4 | 6312 | |
7282d491 | 6313 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
6314 | .get_settings = s2io_ethtool_gset, |
6315 | .set_settings = s2io_ethtool_sset, | |
6316 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
6317 | .get_regs_len = s2io_ethtool_get_regs_len, | |
6318 | .get_regs = s2io_ethtool_gregs, | |
6319 | .get_link = ethtool_op_get_link, | |
6320 | .get_eeprom_len = s2io_get_eeprom_len, | |
6321 | .get_eeprom = s2io_ethtool_geeprom, | |
6322 | .set_eeprom = s2io_ethtool_seeprom, | |
0cec35eb | 6323 | .get_ringparam = s2io_ethtool_gringparam, |
1da177e4 LT |
6324 | .get_pauseparam = s2io_ethtool_getpause_data, |
6325 | .set_pauseparam = s2io_ethtool_setpause_data, | |
6326 | .get_rx_csum = s2io_ethtool_get_rx_csum, | |
6327 | .set_rx_csum = s2io_ethtool_set_rx_csum, | |
1da177e4 | 6328 | .set_tx_csum = s2io_ethtool_op_set_tx_csum, |
1da177e4 | 6329 | .set_sg = ethtool_op_set_sg, |
75c30b13 AR |
6330 | .get_tso = s2io_ethtool_op_get_tso, |
6331 | .set_tso = s2io_ethtool_op_set_tso, | |
fed5eccd | 6332 | .set_ufo = ethtool_op_set_ufo, |
1da177e4 LT |
6333 | .self_test = s2io_ethtool_test, |
6334 | .get_strings = s2io_ethtool_get_strings, | |
6335 | .phys_id = s2io_ethtool_idnic, | |
b9f2c044 JG |
6336 | .get_ethtool_stats = s2io_get_ethtool_stats, |
6337 | .get_sset_count = s2io_get_sset_count, | |
1da177e4 LT |
6338 | }; |
6339 | ||
6340 | /** | |
20346722 | 6341 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
6342 | * @dev : Device pointer. |
6343 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
6344 | * a proprietary structure used to pass information to the driver. | |
6345 | * @cmd : This is used to distinguish between the different commands that | |
6346 | * can be passed to the IOCTL functions. | |
6347 | * Description: | |
20346722 | 6348 | * Currently there are no special functionality supported in IOCTL, hence |
6349 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
6350 | */ |
6351 | ||
ac1f60db | 6352 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
6353 | { |
6354 | return -EOPNOTSUPP; | |
6355 | } | |
6356 | ||
6357 | /** | |
6358 | * s2io_change_mtu - entry point to change MTU size for the device. | |
6359 | * @dev : device pointer. | |
6360 | * @new_mtu : the new MTU size for the device. | |
6361 | * Description: A driver entry point to change MTU size for the device. | |
6362 | * Before changing the MTU the device must be stopped. | |
6363 | * Return value: | |
6364 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
6365 | * file on failure. | |
6366 | */ | |
6367 | ||
ac1f60db | 6368 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 6369 | { |
1ee6dd77 | 6370 | struct s2io_nic *sp = dev->priv; |
9f74ffde | 6371 | int ret = 0; |
1da177e4 LT |
6372 | |
6373 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
6374 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", | |
6375 | dev->name); | |
6376 | return -EPERM; | |
6377 | } | |
6378 | ||
1da177e4 | 6379 | dev->mtu = new_mtu; |
d8892c6e | 6380 | if (netif_running(dev)) { |
e6a8fee2 | 6381 | s2io_card_down(sp); |
d8892c6e | 6382 | netif_stop_queue(dev); |
9f74ffde SH |
6383 | ret = s2io_card_up(sp); |
6384 | if (ret) { | |
d8892c6e | 6385 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", |
6386 | __FUNCTION__); | |
9f74ffde | 6387 | return ret; |
d8892c6e | 6388 | } |
6389 | if (netif_queue_stopped(dev)) | |
6390 | netif_wake_queue(dev); | |
6391 | } else { /* Device is down */ | |
1ee6dd77 | 6392 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e | 6393 | u64 val64 = new_mtu; |
6394 | ||
6395 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
6396 | } | |
1da177e4 | 6397 | |
9f74ffde | 6398 | return ret; |
1da177e4 LT |
6399 | } |
6400 | ||
6401 | /** | |
6402 | * s2io_tasklet - Bottom half of the ISR. | |
6403 | * @dev_adr : address of the device structure in dma_addr_t format. | |
6404 | * Description: | |
6405 | * This is the tasklet or the bottom half of the ISR. This is | |
20346722 | 6406 | * an extension of the ISR which is scheduled by the scheduler to be run |
1da177e4 | 6407 | * when the load on the CPU is low. All low priority tasks of the ISR can |
20346722 | 6408 | * be pushed into the tasklet. For now the tasklet is used only to |
1da177e4 LT |
6409 | * replenish the Rx buffers in the Rx buffer descriptors. |
6410 | * Return value: | |
6411 | * void. | |
6412 | */ | |
6413 | ||
6414 | static void s2io_tasklet(unsigned long dev_addr) | |
6415 | { | |
6416 | struct net_device *dev = (struct net_device *) dev_addr; | |
1ee6dd77 | 6417 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 6418 | int i, ret; |
1ee6dd77 | 6419 | struct mac_info *mac_control; |
1da177e4 LT |
6420 | struct config_param *config; |
6421 | ||
6422 | mac_control = &sp->mac_control; | |
6423 | config = &sp->config; | |
6424 | ||
6425 | if (!TASKLET_IN_USE) { | |
6426 | for (i = 0; i < config->rx_ring_num; i++) { | |
6427 | ret = fill_rx_buffers(sp, i); | |
6428 | if (ret == -ENOMEM) { | |
0c61ed5f | 6429 | DBG_PRINT(INFO_DBG, "%s: Out of ", |
1da177e4 | 6430 | dev->name); |
491976b2 | 6431 | DBG_PRINT(INFO_DBG, "memory in tasklet\n"); |
1da177e4 LT |
6432 | break; |
6433 | } else if (ret == -EFILL) { | |
0c61ed5f | 6434 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
6435 | "%s: Rx Ring %d is full\n", |
6436 | dev->name, i); | |
6437 | break; | |
6438 | } | |
6439 | } | |
6440 | clear_bit(0, (&sp->tasklet_status)); | |
6441 | } | |
6442 | } | |
6443 | ||
6444 | /** | |
6445 | * s2io_set_link - Set the LInk status | |
6446 | * @data: long pointer to device private structue | |
6447 | * Description: Sets the link status for the adapter | |
6448 | */ | |
6449 | ||
c4028958 | 6450 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 6451 | { |
1ee6dd77 | 6452 | struct s2io_nic *nic = container_of(work, struct s2io_nic, set_link_task); |
1da177e4 | 6453 | struct net_device *dev = nic->dev; |
1ee6dd77 | 6454 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
6455 | register u64 val64; |
6456 | u16 subid; | |
6457 | ||
22747d6b FR |
6458 | rtnl_lock(); |
6459 | ||
6460 | if (!netif_running(dev)) | |
6461 | goto out_unlock; | |
6462 | ||
92b84437 | 6463 | if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) { |
1da177e4 | 6464 | /* The card is being reset, no point doing anything */ |
22747d6b | 6465 | goto out_unlock; |
1da177e4 LT |
6466 | } |
6467 | ||
6468 | subid = nic->pdev->subsystem_device; | |
a371a07d | 6469 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
6470 | /* | |
6471 | * Allow a small delay for the NICs self initiated | |
6472 | * cleanup to complete. | |
6473 | */ | |
6474 | msleep(100); | |
6475 | } | |
1da177e4 LT |
6476 | |
6477 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
6478 | if (LINK_IS_UP(val64)) { |
6479 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
6480 | if (verify_xena_quiescence(nic)) { | |
6481 | val64 = readq(&bar0->adapter_control); | |
6482 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 6483 | writeq(val64, &bar0->adapter_control); |
19a60522 SS |
6484 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
6485 | nic->device_type, subid)) { | |
6486 | val64 = readq(&bar0->gpio_control); | |
6487 | val64 |= GPIO_CTRL_GPIO_0; | |
6488 | writeq(val64, &bar0->gpio_control); | |
6489 | val64 = readq(&bar0->gpio_control); | |
6490 | } else { | |
6491 | val64 |= ADAPTER_LED_ON; | |
6492 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 6493 | } |
1da177e4 | 6494 | nic->device_enabled_once = TRUE; |
19a60522 SS |
6495 | } else { |
6496 | DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name); | |
6497 | DBG_PRINT(ERR_DBG, "device is not Quiescent\n"); | |
6498 | netif_stop_queue(dev); | |
1da177e4 | 6499 | } |
19a60522 | 6500 | } |
92c48799 SS |
6501 | val64 = readq(&bar0->adapter_control); |
6502 | val64 |= ADAPTER_LED_ON; | |
6503 | writeq(val64, &bar0->adapter_control); | |
6504 | s2io_link(nic, LINK_UP); | |
19a60522 SS |
6505 | } else { |
6506 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
6507 | subid)) { | |
6508 | val64 = readq(&bar0->gpio_control); | |
6509 | val64 &= ~GPIO_CTRL_GPIO_0; | |
6510 | writeq(val64, &bar0->gpio_control); | |
6511 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 6512 | } |
92c48799 SS |
6513 | /* turn off LED */ |
6514 | val64 = readq(&bar0->adapter_control); | |
6515 | val64 = val64 &(~ADAPTER_LED_ON); | |
6516 | writeq(val64, &bar0->adapter_control); | |
19a60522 | 6517 | s2io_link(nic, LINK_DOWN); |
1da177e4 | 6518 | } |
92b84437 | 6519 | clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state)); |
22747d6b FR |
6520 | |
6521 | out_unlock: | |
d8d70caf | 6522 | rtnl_unlock(); |
1da177e4 LT |
6523 | } |
6524 | ||
1ee6dd77 RB |
6525 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
6526 | struct buffAdd *ba, | |
6527 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
6528 | u64 *temp2, int size) | |
5d3213cc AR |
6529 | { |
6530 | struct net_device *dev = sp->dev; | |
491abf25 | 6531 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
5d3213cc AR |
6532 | |
6533 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6534 | struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; |
5d3213cc AR |
6535 | /* allocate skb */ |
6536 | if (*skb) { | |
6537 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
6538 | /* | |
6539 | * As Rx frame are not going to be processed, | |
6540 | * using same mapped address for the Rxd | |
6541 | * buffer pointer | |
6542 | */ | |
6d517a27 | 6543 | rxdp1->Buffer0_ptr = *temp0; |
5d3213cc AR |
6544 | } else { |
6545 | *skb = dev_alloc_skb(size); | |
6546 | if (!(*skb)) { | |
0c61ed5f | 6547 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
c53d4945 SH |
6548 | DBG_PRINT(INFO_DBG, "memory to allocate "); |
6549 | DBG_PRINT(INFO_DBG, "1 buf mode SKBs\n"); | |
6550 | sp->mac_control.stats_info->sw_stat. \ | |
6551 | mem_alloc_fail_cnt++; | |
5d3213cc AR |
6552 | return -ENOMEM ; |
6553 | } | |
8a4bdbaa | 6554 | sp->mac_control.stats_info->sw_stat.mem_allocated |
491976b2 | 6555 | += (*skb)->truesize; |
5d3213cc AR |
6556 | /* storing the mapped addr in a temp variable |
6557 | * such it will be used for next rxd whose | |
6558 | * Host Control is NULL | |
6559 | */ | |
6d517a27 | 6560 | rxdp1->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6561 | pci_map_single( sp->pdev, (*skb)->data, |
6562 | size - NET_IP_ALIGN, | |
6563 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6564 | if( (rxdp1->Buffer0_ptr == 0) || |
6565 | (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) { | |
6566 | goto memalloc_failed; | |
6567 | } | |
5d3213cc AR |
6568 | rxdp->Host_Control = (unsigned long) (*skb); |
6569 | } | |
6570 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6571 | struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; |
5d3213cc AR |
6572 | /* Two buffer Mode */ |
6573 | if (*skb) { | |
6d517a27 VP |
6574 | rxdp3->Buffer2_ptr = *temp2; |
6575 | rxdp3->Buffer0_ptr = *temp0; | |
6576 | rxdp3->Buffer1_ptr = *temp1; | |
5d3213cc AR |
6577 | } else { |
6578 | *skb = dev_alloc_skb(size); | |
2ceaac75 | 6579 | if (!(*skb)) { |
c53d4945 SH |
6580 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
6581 | DBG_PRINT(INFO_DBG, "memory to allocate "); | |
6582 | DBG_PRINT(INFO_DBG, "2 buf mode SKBs\n"); | |
6583 | sp->mac_control.stats_info->sw_stat. \ | |
6584 | mem_alloc_fail_cnt++; | |
2ceaac75 DR |
6585 | return -ENOMEM; |
6586 | } | |
8a4bdbaa | 6587 | sp->mac_control.stats_info->sw_stat.mem_allocated |
491976b2 | 6588 | += (*skb)->truesize; |
6d517a27 | 6589 | rxdp3->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6590 | pci_map_single(sp->pdev, (*skb)->data, |
6591 | dev->mtu + 4, | |
6592 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6593 | if( (rxdp3->Buffer2_ptr == 0) || |
6594 | (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) { | |
6595 | goto memalloc_failed; | |
6596 | } | |
6d517a27 | 6597 | rxdp3->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6598 | pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, |
6599 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6600 | if( (rxdp3->Buffer0_ptr == 0) || |
6601 | (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) { | |
6602 | pci_unmap_single (sp->pdev, | |
3e847423 | 6603 | (dma_addr_t)rxdp3->Buffer2_ptr, |
491abf25 VP |
6604 | dev->mtu + 4, PCI_DMA_FROMDEVICE); |
6605 | goto memalloc_failed; | |
6606 | } | |
5d3213cc AR |
6607 | rxdp->Host_Control = (unsigned long) (*skb); |
6608 | ||
6609 | /* Buffer-1 will be dummy buffer not used */ | |
6d517a27 | 6610 | rxdp3->Buffer1_ptr = *temp1 = |
5d3213cc | 6611 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
5d3213cc | 6612 | PCI_DMA_FROMDEVICE); |
491abf25 VP |
6613 | if( (rxdp3->Buffer1_ptr == 0) || |
6614 | (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { | |
6615 | pci_unmap_single (sp->pdev, | |
3e847423 AV |
6616 | (dma_addr_t)rxdp3->Buffer0_ptr, |
6617 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
6618 | pci_unmap_single (sp->pdev, | |
6619 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
491abf25 VP |
6620 | dev->mtu + 4, PCI_DMA_FROMDEVICE); |
6621 | goto memalloc_failed; | |
6622 | } | |
5d3213cc AR |
6623 | } |
6624 | } | |
6625 | return 0; | |
491abf25 VP |
6626 | memalloc_failed: |
6627 | stats->pci_map_fail_cnt++; | |
6628 | stats->mem_freed += (*skb)->truesize; | |
6629 | dev_kfree_skb(*skb); | |
6630 | return -ENOMEM; | |
5d3213cc | 6631 | } |
491abf25 | 6632 | |
1ee6dd77 RB |
6633 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6634 | int size) | |
5d3213cc AR |
6635 | { |
6636 | struct net_device *dev = sp->dev; | |
6637 | if (sp->rxd_mode == RXD_MODE_1) { | |
6638 | rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN); | |
6639 | } else if (sp->rxd_mode == RXD_MODE_3B) { | |
6640 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6641 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
6642 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); | |
5d3213cc AR |
6643 | } |
6644 | } | |
6645 | ||
1ee6dd77 | 6646 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6647 | { |
6648 | int i, j, k, blk_cnt = 0, size; | |
1ee6dd77 | 6649 | struct mac_info * mac_control = &sp->mac_control; |
5d3213cc AR |
6650 | struct config_param *config = &sp->config; |
6651 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 6652 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6653 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6654 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6655 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6656 | ||
6657 | /* Calculate the size based on ring mode */ | |
6658 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6659 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6660 | if (sp->rxd_mode == RXD_MODE_1) | |
6661 | size += NET_IP_ALIGN; | |
6662 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6663 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
5d3213cc AR |
6664 | |
6665 | for (i = 0; i < config->rx_ring_num; i++) { | |
6666 | blk_cnt = config->rx_cfg[i].num_rxd / | |
6667 | (rxd_count[sp->rxd_mode] +1); | |
6668 | ||
6669 | for (j = 0; j < blk_cnt; j++) { | |
6670 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
6671 | rxdp = mac_control->rings[i]. | |
6672 | rx_blocks[j].rxds[k].virt_addr; | |
6d517a27 | 6673 | if(sp->rxd_mode == RXD_MODE_3B) |
5d3213cc | 6674 | ba = &mac_control->rings[i].ba[j][k]; |
ac1f90d6 | 6675 | if (set_rxd_buffer_pointer(sp, rxdp, ba, |
5d3213cc AR |
6676 | &skb,(u64 *)&temp0_64, |
6677 | (u64 *)&temp1_64, | |
ac1f90d6 SS |
6678 | (u64 *)&temp2_64, |
6679 | size) == ENOMEM) { | |
6680 | return 0; | |
6681 | } | |
5d3213cc AR |
6682 | |
6683 | set_rxd_buffer_size(sp, rxdp, size); | |
6684 | wmb(); | |
6685 | /* flip the Ownership bit to Hardware */ | |
6686 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6687 | } | |
6688 | } | |
6689 | } | |
6690 | return 0; | |
6691 | ||
6692 | } | |
6693 | ||
1ee6dd77 | 6694 | static int s2io_add_isr(struct s2io_nic * sp) |
1da177e4 | 6695 | { |
e6a8fee2 | 6696 | int ret = 0; |
c92ca04b | 6697 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6698 | int err = 0; |
1da177e4 | 6699 | |
eaae7f72 | 6700 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
6701 | ret = s2io_enable_msi_x(sp); |
6702 | if (ret) { | |
6703 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
eaae7f72 | 6704 | sp->config.intr_type = INTA; |
20346722 | 6705 | } |
1da177e4 | 6706 | |
1ee6dd77 | 6707 | /* Store the values of the MSIX table in the struct s2io_nic structure */ |
e6a8fee2 | 6708 | store_xmsi_data(sp); |
c92ca04b | 6709 | |
e6a8fee2 | 6710 | /* After proper initialization of H/W, register ISR */ |
eaae7f72 | 6711 | if (sp->config.intr_type == MSI_X) { |
fb6a825b | 6712 | int i, msix_tx_cnt=0,msix_rx_cnt=0; |
c92ca04b | 6713 | |
e6a8fee2 AR |
6714 | for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) { |
6715 | if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) { | |
6716 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", | |
6717 | dev->name, i); | |
6718 | err = request_irq(sp->entries[i].vector, | |
6719 | s2io_msix_fifo_handle, 0, sp->desc[i], | |
6720 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6721 | /* If either data or addr is zero print it */ |
6722 | if(!(sp->msix_info[i].addr && | |
6723 | sp->msix_info[i].data)) { | |
6724 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6725 | "Data:0x%lx\n",sp->desc[i], | |
6726 | (unsigned long long) | |
6727 | sp->msix_info[i].addr, | |
6728 | (unsigned long) | |
6729 | ntohl(sp->msix_info[i].data)); | |
6730 | } else { | |
6731 | msix_tx_cnt++; | |
6732 | } | |
e6a8fee2 AR |
6733 | } else { |
6734 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", | |
6735 | dev->name, i); | |
6736 | err = request_irq(sp->entries[i].vector, | |
6737 | s2io_msix_ring_handle, 0, sp->desc[i], | |
6738 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6739 | /* If either data or addr is zero print it */ |
6740 | if(!(sp->msix_info[i].addr && | |
6741 | sp->msix_info[i].data)) { | |
6742 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6743 | "Data:0x%lx\n",sp->desc[i], | |
6744 | (unsigned long long) | |
6745 | sp->msix_info[i].addr, | |
6746 | (unsigned long) | |
6747 | ntohl(sp->msix_info[i].data)); | |
6748 | } else { | |
6749 | msix_rx_cnt++; | |
6750 | } | |
c92ca04b | 6751 | } |
e6a8fee2 | 6752 | if (err) { |
18b2b7bd | 6753 | remove_msix_isr(sp); |
e6a8fee2 AR |
6754 | DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration " |
6755 | "failed\n", dev->name, i); | |
18b2b7bd SH |
6756 | DBG_PRINT(ERR_DBG, "%s: defaulting to INTA\n", |
6757 | dev->name); | |
6758 | sp->config.intr_type = INTA; | |
6759 | break; | |
e6a8fee2 AR |
6760 | } |
6761 | sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS; | |
6762 | } | |
18b2b7bd SH |
6763 | if (!err) { |
6764 | printk(KERN_INFO "MSI-X-TX %d entries enabled\n", | |
6765 | msix_tx_cnt); | |
6766 | printk(KERN_INFO "MSI-X-RX %d entries enabled\n", | |
6767 | msix_rx_cnt); | |
6768 | } | |
e6a8fee2 | 6769 | } |
eaae7f72 | 6770 | if (sp->config.intr_type == INTA) { |
e6a8fee2 AR |
6771 | err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED, |
6772 | sp->name, dev); | |
6773 | if (err) { | |
6774 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
6775 | dev->name); | |
6776 | return -1; | |
6777 | } | |
6778 | } | |
6779 | return 0; | |
6780 | } | |
1ee6dd77 | 6781 | static void s2io_rem_isr(struct s2io_nic * sp) |
e6a8fee2 | 6782 | { |
18b2b7bd SH |
6783 | if (sp->config.intr_type == MSI_X) |
6784 | remove_msix_isr(sp); | |
6785 | else | |
6786 | remove_inta_isr(sp); | |
e6a8fee2 AR |
6787 | } |
6788 | ||
d796fdb7 | 6789 | static void do_s2io_card_down(struct s2io_nic * sp, int do_io) |
e6a8fee2 AR |
6790 | { |
6791 | int cnt = 0; | |
1ee6dd77 | 6792 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 AR |
6793 | unsigned long flags; |
6794 | register u64 val64 = 0; | |
5f490c96 SH |
6795 | struct config_param *config; |
6796 | config = &sp->config; | |
e6a8fee2 | 6797 | |
9f74ffde SH |
6798 | if (!is_s2io_card_up(sp)) |
6799 | return; | |
6800 | ||
e6a8fee2 AR |
6801 | del_timer_sync(&sp->alarm_timer); |
6802 | /* If s2io_set_link task is executing, wait till it completes. */ | |
92b84437 | 6803 | while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state))) { |
e6a8fee2 AR |
6804 | msleep(50); |
6805 | } | |
92b84437 | 6806 | clear_bit(__S2IO_STATE_CARD_UP, &sp->state); |
e6a8fee2 | 6807 | |
5f490c96 SH |
6808 | /* Disable napi */ |
6809 | if (config->napi) | |
6810 | napi_disable(&sp->napi); | |
6811 | ||
e6a8fee2 | 6812 | /* disable Tx and Rx traffic on the NIC */ |
d796fdb7 LV |
6813 | if (do_io) |
6814 | stop_nic(sp); | |
e6a8fee2 AR |
6815 | |
6816 | s2io_rem_isr(sp); | |
1da177e4 LT |
6817 | |
6818 | /* Kill tasklet. */ | |
6819 | tasklet_kill(&sp->task); | |
6820 | ||
6821 | /* Check if the device is Quiescent and then Reset the NIC */ | |
d796fdb7 | 6822 | while(do_io) { |
5d3213cc AR |
6823 | /* As per the HW requirement we need to replenish the |
6824 | * receive buffer to avoid the ring bump. Since there is | |
6825 | * no intention of processing the Rx frame at this pointwe are | |
6826 | * just settting the ownership bit of rxd in Each Rx | |
6827 | * ring to HW and set the appropriate buffer size | |
6828 | * based on the ring mode | |
6829 | */ | |
6830 | rxd_owner_bit_reset(sp); | |
6831 | ||
1da177e4 | 6832 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
6833 | if (verify_xena_quiescence(sp)) { |
6834 | if(verify_pcc_quiescent(sp, sp->device_enabled_once)) | |
1da177e4 LT |
6835 | break; |
6836 | } | |
6837 | ||
6838 | msleep(50); | |
6839 | cnt++; | |
6840 | if (cnt == 10) { | |
6841 | DBG_PRINT(ERR_DBG, | |
6842 | "s2io_close:Device not Quiescent "); | |
6843 | DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n", | |
6844 | (unsigned long long) val64); | |
6845 | break; | |
6846 | } | |
d796fdb7 LV |
6847 | } |
6848 | if (do_io) | |
6849 | s2io_reset(sp); | |
1da177e4 | 6850 | |
7ba013ac | 6851 | spin_lock_irqsave(&sp->tx_lock, flags); |
6852 | /* Free all Tx buffers */ | |
1da177e4 | 6853 | free_tx_buffers(sp); |
7ba013ac | 6854 | spin_unlock_irqrestore(&sp->tx_lock, flags); |
6855 | ||
6856 | /* Free all Rx buffers */ | |
6857 | spin_lock_irqsave(&sp->rx_lock, flags); | |
1da177e4 | 6858 | free_rx_buffers(sp); |
7ba013ac | 6859 | spin_unlock_irqrestore(&sp->rx_lock, flags); |
1da177e4 | 6860 | |
92b84437 | 6861 | clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state)); |
1da177e4 LT |
6862 | } |
6863 | ||
d796fdb7 LV |
6864 | static void s2io_card_down(struct s2io_nic * sp) |
6865 | { | |
6866 | do_s2io_card_down(sp, 1); | |
6867 | } | |
6868 | ||
1ee6dd77 | 6869 | static int s2io_card_up(struct s2io_nic * sp) |
1da177e4 | 6870 | { |
cc6e7c44 | 6871 | int i, ret = 0; |
1ee6dd77 | 6872 | struct mac_info *mac_control; |
1da177e4 LT |
6873 | struct config_param *config; |
6874 | struct net_device *dev = (struct net_device *) sp->dev; | |
e6a8fee2 | 6875 | u16 interruptible; |
1da177e4 LT |
6876 | |
6877 | /* Initialize the H/W I/O registers */ | |
9f74ffde SH |
6878 | ret = init_nic(sp); |
6879 | if (ret != 0) { | |
1da177e4 LT |
6880 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
6881 | dev->name); | |
9f74ffde SH |
6882 | if (ret != -EIO) |
6883 | s2io_reset(sp); | |
6884 | return ret; | |
1da177e4 LT |
6885 | } |
6886 | ||
20346722 | 6887 | /* |
6888 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
6889 | * Rx ring and initializing buffers into 30 Rx blocks |
6890 | */ | |
6891 | mac_control = &sp->mac_control; | |
6892 | config = &sp->config; | |
6893 | ||
6894 | for (i = 0; i < config->rx_ring_num; i++) { | |
6895 | if ((ret = fill_rx_buffers(sp, i))) { | |
6896 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", | |
6897 | dev->name); | |
6898 | s2io_reset(sp); | |
6899 | free_rx_buffers(sp); | |
6900 | return -ENOMEM; | |
6901 | } | |
6902 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
6903 | atomic_read(&sp->rx_bufs_left[i])); | |
6904 | } | |
5f490c96 SH |
6905 | |
6906 | /* Initialise napi */ | |
6907 | if (config->napi) | |
6908 | napi_enable(&sp->napi); | |
6909 | ||
19a60522 SS |
6910 | /* Maintain the state prior to the open */ |
6911 | if (sp->promisc_flg) | |
6912 | sp->promisc_flg = 0; | |
6913 | if (sp->m_cast_flg) { | |
6914 | sp->m_cast_flg = 0; | |
6915 | sp->all_multi_pos= 0; | |
6916 | } | |
1da177e4 LT |
6917 | |
6918 | /* Setting its receive mode */ | |
6919 | s2io_set_multicast(dev); | |
6920 | ||
7d3d0439 | 6921 | if (sp->lro) { |
b41477f3 | 6922 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 RA |
6923 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
6924 | /* Check if we can use(if specified) user provided value */ | |
6925 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) | |
6926 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
6927 | } | |
6928 | ||
1da177e4 LT |
6929 | /* Enable Rx Traffic and interrupts on the NIC */ |
6930 | if (start_nic(sp)) { | |
6931 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 6932 | s2io_reset(sp); |
e6a8fee2 AR |
6933 | free_rx_buffers(sp); |
6934 | return -ENODEV; | |
6935 | } | |
6936 | ||
6937 | /* Add interrupt service routine */ | |
6938 | if (s2io_add_isr(sp) != 0) { | |
eaae7f72 | 6939 | if (sp->config.intr_type == MSI_X) |
e6a8fee2 AR |
6940 | s2io_rem_isr(sp); |
6941 | s2io_reset(sp); | |
1da177e4 LT |
6942 | free_rx_buffers(sp); |
6943 | return -ENODEV; | |
6944 | } | |
6945 | ||
25fff88e | 6946 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
6947 | ||
e6a8fee2 AR |
6948 | /* Enable tasklet for the device */ |
6949 | tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev); | |
6950 | ||
6951 | /* Enable select interrupts */ | |
9caab458 | 6952 | en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS); |
eaae7f72 | 6953 | if (sp->config.intr_type != INTA) |
e6a8fee2 AR |
6954 | en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS); |
6955 | else { | |
6956 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; | |
9caab458 | 6957 | interruptible |= TX_PIC_INTR; |
e6a8fee2 AR |
6958 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); |
6959 | } | |
6960 | ||
92b84437 | 6961 | set_bit(__S2IO_STATE_CARD_UP, &sp->state); |
1da177e4 LT |
6962 | return 0; |
6963 | } | |
6964 | ||
20346722 | 6965 | /** |
1da177e4 LT |
6966 | * s2io_restart_nic - Resets the NIC. |
6967 | * @data : long pointer to the device private structure | |
6968 | * Description: | |
6969 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 6970 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
6971 | * the run time of the watch dog routine which is run holding a |
6972 | * spin lock. | |
6973 | */ | |
6974 | ||
c4028958 | 6975 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 6976 | { |
1ee6dd77 | 6977 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 6978 | struct net_device *dev = sp->dev; |
1da177e4 | 6979 | |
22747d6b FR |
6980 | rtnl_lock(); |
6981 | ||
6982 | if (!netif_running(dev)) | |
6983 | goto out_unlock; | |
6984 | ||
e6a8fee2 | 6985 | s2io_card_down(sp); |
1da177e4 LT |
6986 | if (s2io_card_up(sp)) { |
6987 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6988 | dev->name); | |
6989 | } | |
6990 | netif_wake_queue(dev); | |
6991 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", | |
6992 | dev->name); | |
22747d6b FR |
6993 | out_unlock: |
6994 | rtnl_unlock(); | |
1da177e4 LT |
6995 | } |
6996 | ||
20346722 | 6997 | /** |
6998 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
6999 | * @dev : Pointer to net device structure |
7000 | * Description: | |
7001 | * This function is triggered if the Tx Queue is stopped | |
7002 | * for a pre-defined amount of time when the Interface is still up. | |
7003 | * If the Interface is jammed in such a situation, the hardware is | |
7004 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
7005 | * overcome any problem that might have been caused in the hardware. | |
7006 | * Return value: | |
7007 | * void | |
7008 | */ | |
7009 | ||
7010 | static void s2io_tx_watchdog(struct net_device *dev) | |
7011 | { | |
1ee6dd77 | 7012 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
7013 | |
7014 | if (netif_carrier_ok(dev)) { | |
c53d4945 | 7015 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt++; |
1da177e4 | 7016 | schedule_work(&sp->rst_timer_task); |
bd1034f0 | 7017 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
7018 | } |
7019 | } | |
7020 | ||
7021 | /** | |
7022 | * rx_osm_handler - To perform some OS related operations on SKB. | |
7023 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
7024 | * @skb : the socket buffer pointer. | |
7025 | * @len : length of the packet | |
7026 | * @cksum : FCS checksum of the frame. | |
7027 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 7028 | * Description: |
b41477f3 | 7029 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
7030 | * some OS related operations on the SKB before passing it to the upper |
7031 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
7032 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
7033 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
7034 | * packet error count, frees the SKB and returns error. | |
7035 | * Return value: | |
7036 | * SUCCESS on success and -1 on failure. | |
7037 | */ | |
1ee6dd77 | 7038 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 7039 | { |
1ee6dd77 | 7040 | struct s2io_nic *sp = ring_data->nic; |
1da177e4 | 7041 | struct net_device *dev = (struct net_device *) sp->dev; |
20346722 | 7042 | struct sk_buff *skb = (struct sk_buff *) |
7043 | ((unsigned long) rxdp->Host_Control); | |
7044 | int ring_no = ring_data->ring_no; | |
1da177e4 | 7045 | u16 l3_csum, l4_csum; |
863c11a9 | 7046 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
1ee6dd77 | 7047 | struct lro *lro; |
f9046eb3 | 7048 | u8 err_mask; |
da6971d8 | 7049 | |
20346722 | 7050 | skb->dev = dev; |
c92ca04b | 7051 | |
863c11a9 | 7052 | if (err) { |
bd1034f0 AR |
7053 | /* Check for parity error */ |
7054 | if (err & 0x1) { | |
7055 | sp->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
7056 | } | |
f9046eb3 OH |
7057 | err_mask = err >> 48; |
7058 | switch(err_mask) { | |
491976b2 SH |
7059 | case 1: |
7060 | sp->mac_control.stats_info->sw_stat. | |
7061 | rx_parity_err_cnt++; | |
7062 | break; | |
7063 | ||
7064 | case 2: | |
7065 | sp->mac_control.stats_info->sw_stat. | |
7066 | rx_abort_cnt++; | |
7067 | break; | |
7068 | ||
7069 | case 3: | |
7070 | sp->mac_control.stats_info->sw_stat. | |
7071 | rx_parity_abort_cnt++; | |
7072 | break; | |
7073 | ||
7074 | case 4: | |
7075 | sp->mac_control.stats_info->sw_stat. | |
7076 | rx_rda_fail_cnt++; | |
7077 | break; | |
7078 | ||
7079 | case 5: | |
7080 | sp->mac_control.stats_info->sw_stat. | |
7081 | rx_unkn_prot_cnt++; | |
7082 | break; | |
7083 | ||
7084 | case 6: | |
7085 | sp->mac_control.stats_info->sw_stat. | |
7086 | rx_fcs_err_cnt++; | |
7087 | break; | |
bd1034f0 | 7088 | |
491976b2 SH |
7089 | case 7: |
7090 | sp->mac_control.stats_info->sw_stat. | |
7091 | rx_buf_size_err_cnt++; | |
7092 | break; | |
7093 | ||
7094 | case 8: | |
7095 | sp->mac_control.stats_info->sw_stat. | |
7096 | rx_rxd_corrupt_cnt++; | |
7097 | break; | |
7098 | ||
7099 | case 15: | |
7100 | sp->mac_control.stats_info->sw_stat. | |
7101 | rx_unkn_err_cnt++; | |
7102 | break; | |
7103 | } | |
863c11a9 AR |
7104 | /* |
7105 | * Drop the packet if bad transfer code. Exception being | |
7106 | * 0x5, which could be due to unsupported IPv6 extension header. | |
7107 | * In this case, we let stack handle the packet. | |
7108 | * Note that in this case, since checksum will be incorrect, | |
7109 | * stack will validate the same. | |
7110 | */ | |
f9046eb3 OH |
7111 | if (err_mask != 0x5) { |
7112 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n", | |
7113 | dev->name, err_mask); | |
863c11a9 | 7114 | sp->stats.rx_crc_errors++; |
8a4bdbaa | 7115 | sp->mac_control.stats_info->sw_stat.mem_freed |
491976b2 | 7116 | += skb->truesize; |
863c11a9 AR |
7117 | dev_kfree_skb(skb); |
7118 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
7119 | rxdp->Host_Control = 0; | |
7120 | return 0; | |
7121 | } | |
20346722 | 7122 | } |
1da177e4 | 7123 | |
20346722 | 7124 | /* Updating statistics */ |
573608e4 | 7125 | sp->stats.rx_packets++; |
20346722 | 7126 | rxdp->Host_Control = 0; |
da6971d8 AR |
7127 | if (sp->rxd_mode == RXD_MODE_1) { |
7128 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 7129 | |
da6971d8 AR |
7130 | sp->stats.rx_bytes += len; |
7131 | skb_put(skb, len); | |
7132 | ||
6d517a27 | 7133 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
7134 | int get_block = ring_data->rx_curr_get_info.block_index; |
7135 | int get_off = ring_data->rx_curr_get_info.offset; | |
7136 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
7137 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
7138 | unsigned char *buff = skb_push(skb, buf0_len); | |
7139 | ||
1ee6dd77 | 7140 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 AR |
7141 | sp->stats.rx_bytes += buf0_len + buf2_len; |
7142 | memcpy(buff, ba->ba_0, buf0_len); | |
6d517a27 | 7143 | skb_put(skb, buf2_len); |
da6971d8 | 7144 | } |
20346722 | 7145 | |
7d3d0439 RA |
7146 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || |
7147 | (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
20346722 | 7148 | (sp->rx_csum)) { |
7149 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); | |
1da177e4 LT |
7150 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
7151 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 7152 | /* |
1da177e4 LT |
7153 | * NIC verifies if the Checksum of the received |
7154 | * frame is Ok or not and accordingly returns | |
7155 | * a flag in the RxD. | |
7156 | */ | |
7157 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
7d3d0439 RA |
7158 | if (sp->lro) { |
7159 | u32 tcp_len; | |
7160 | u8 *tcp; | |
7161 | int ret = 0; | |
7162 | ||
7163 | ret = s2io_club_tcp_session(skb->data, &tcp, | |
43b7c451 SH |
7164 | &tcp_len, &lro, |
7165 | rxdp, sp); | |
7d3d0439 RA |
7166 | switch (ret) { |
7167 | case 3: /* Begin anew */ | |
7168 | lro->parent = skb; | |
7169 | goto aggregate; | |
7170 | case 1: /* Aggregate */ | |
7171 | { | |
7172 | lro_append_pkt(sp, lro, | |
7173 | skb, tcp_len); | |
7174 | goto aggregate; | |
7175 | } | |
7176 | case 4: /* Flush session */ | |
7177 | { | |
7178 | lro_append_pkt(sp, lro, | |
7179 | skb, tcp_len); | |
7180 | queue_rx_frame(lro->parent); | |
7181 | clear_lro_session(lro); | |
7182 | sp->mac_control.stats_info-> | |
7183 | sw_stat.flush_max_pkts++; | |
7184 | goto aggregate; | |
7185 | } | |
7186 | case 2: /* Flush both */ | |
7187 | lro->parent->data_len = | |
7188 | lro->frags_len; | |
7189 | sp->mac_control.stats_info-> | |
7190 | sw_stat.sending_both++; | |
7191 | queue_rx_frame(lro->parent); | |
7192 | clear_lro_session(lro); | |
7193 | goto send_up; | |
7194 | case 0: /* sessions exceeded */ | |
c92ca04b AR |
7195 | case -1: /* non-TCP or not |
7196 | * L2 aggregatable | |
7197 | */ | |
7d3d0439 RA |
7198 | case 5: /* |
7199 | * First pkt in session not | |
7200 | * L3/L4 aggregatable | |
7201 | */ | |
7202 | break; | |
7203 | default: | |
7204 | DBG_PRINT(ERR_DBG, | |
7205 | "%s: Samadhana!!\n", | |
7206 | __FUNCTION__); | |
7207 | BUG(); | |
7208 | } | |
7209 | } | |
1da177e4 | 7210 | } else { |
20346722 | 7211 | /* |
7212 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
7213 | * upper layers deal with it. |
7214 | */ | |
7215 | skb->ip_summed = CHECKSUM_NONE; | |
7216 | } | |
7217 | } else { | |
7218 | skb->ip_summed = CHECKSUM_NONE; | |
7219 | } | |
491976b2 | 7220 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
7d3d0439 RA |
7221 | if (!sp->lro) { |
7222 | skb->protocol = eth_type_trans(skb, dev); | |
926930b2 SS |
7223 | if ((sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2) && |
7224 | vlan_strip_flag)) { | |
7d3d0439 | 7225 | /* Queueing the vlan frame to the upper layer */ |
db874e65 SS |
7226 | if (napi) |
7227 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, | |
7228 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
7229 | else | |
7230 | vlan_hwaccel_rx(skb, sp->vlgrp, | |
7231 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
7d3d0439 | 7232 | } else { |
db874e65 SS |
7233 | if (napi) |
7234 | netif_receive_skb(skb); | |
7235 | else | |
7236 | netif_rx(skb); | |
7d3d0439 | 7237 | } |
7d3d0439 RA |
7238 | } else { |
7239 | send_up: | |
7240 | queue_rx_frame(skb); | |
6aa20a22 | 7241 | } |
1da177e4 | 7242 | dev->last_rx = jiffies; |
7d3d0439 | 7243 | aggregate: |
1da177e4 | 7244 | atomic_dec(&sp->rx_bufs_left[ring_no]); |
1da177e4 LT |
7245 | return SUCCESS; |
7246 | } | |
7247 | ||
7248 | /** | |
7249 | * s2io_link - stops/starts the Tx queue. | |
7250 | * @sp : private member of the device structure, which is a pointer to the | |
7251 | * s2io_nic structure. | |
7252 | * @link : inidicates whether link is UP/DOWN. | |
7253 | * Description: | |
7254 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 | 7255 | * status of the NIC is is down or up. This is called by the Alarm |
7256 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
7257 | * Return value: |
7258 | * void. | |
7259 | */ | |
7260 | ||
1ee6dd77 | 7261 | static void s2io_link(struct s2io_nic * sp, int link) |
1da177e4 LT |
7262 | { |
7263 | struct net_device *dev = (struct net_device *) sp->dev; | |
7264 | ||
7265 | if (link != sp->last_link_state) { | |
7266 | if (link == LINK_DOWN) { | |
7267 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
7268 | netif_carrier_off(dev); | |
491976b2 | 7269 | if(sp->mac_control.stats_info->sw_stat.link_up_cnt) |
8a4bdbaa | 7270 | sp->mac_control.stats_info->sw_stat.link_up_time = |
491976b2 SH |
7271 | jiffies - sp->start_time; |
7272 | sp->mac_control.stats_info->sw_stat.link_down_cnt++; | |
1da177e4 LT |
7273 | } else { |
7274 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
491976b2 | 7275 | if (sp->mac_control.stats_info->sw_stat.link_down_cnt) |
8a4bdbaa | 7276 | sp->mac_control.stats_info->sw_stat.link_down_time = |
491976b2 SH |
7277 | jiffies - sp->start_time; |
7278 | sp->mac_control.stats_info->sw_stat.link_up_cnt++; | |
1da177e4 LT |
7279 | netif_carrier_on(dev); |
7280 | } | |
7281 | } | |
7282 | sp->last_link_state = link; | |
491976b2 | 7283 | sp->start_time = jiffies; |
1da177e4 LT |
7284 | } |
7285 | ||
20346722 | 7286 | /** |
7287 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
7288 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
7289 | * s2io_nic structure. |
7290 | * Description: | |
7291 | * This function initializes a few of the PCI and PCI-X configuration registers | |
7292 | * with recommended values. | |
7293 | * Return value: | |
7294 | * void | |
7295 | */ | |
7296 | ||
1ee6dd77 | 7297 | static void s2io_init_pci(struct s2io_nic * sp) |
1da177e4 | 7298 | { |
20346722 | 7299 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
7300 | |
7301 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
7302 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 7303 | &(pcix_cmd)); |
1da177e4 | 7304 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7305 | (pcix_cmd | 1)); |
1da177e4 | 7306 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7307 | &(pcix_cmd)); |
1da177e4 LT |
7308 | |
7309 | /* Set the PErr Response bit in PCI command register. */ | |
7310 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
7311 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
7312 | (pci_cmd | PCI_COMMAND_PARITY)); | |
7313 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
7314 | } |
7315 | ||
9dc737a7 AR |
7316 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) |
7317 | { | |
7318 | if ( tx_fifo_num > 8) { | |
7319 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not " | |
7320 | "supported\n"); | |
7321 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n"); | |
7322 | tx_fifo_num = 8; | |
7323 | } | |
7324 | if ( rx_ring_num > 8) { | |
7325 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not " | |
7326 | "supported\n"); | |
7327 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n"); | |
7328 | rx_ring_num = 8; | |
7329 | } | |
db874e65 SS |
7330 | if (*dev_intr_type != INTA) |
7331 | napi = 0; | |
7332 | ||
eccb8628 | 7333 | if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) { |
9dc737a7 AR |
7334 | DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " |
7335 | "Defaulting to INTA\n"); | |
7336 | *dev_intr_type = INTA; | |
7337 | } | |
596c5c97 | 7338 | |
9dc737a7 AR |
7339 | if ((*dev_intr_type == MSI_X) && |
7340 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && | |
7341 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
6aa20a22 | 7342 | DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. " |
9dc737a7 AR |
7343 | "Defaulting to INTA\n"); |
7344 | *dev_intr_type = INTA; | |
7345 | } | |
fb6a825b | 7346 | |
6d517a27 | 7347 | if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { |
9dc737a7 | 7348 | DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); |
6d517a27 VP |
7349 | DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n"); |
7350 | rx_ring_mode = 1; | |
9dc737a7 AR |
7351 | } |
7352 | return SUCCESS; | |
7353 | } | |
7354 | ||
9fc93a41 SS |
7355 | /** |
7356 | * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS | |
7357 | * or Traffic class respectively. | |
7358 | * @nic: device peivate variable | |
7359 | * Description: The function configures the receive steering to | |
7360 | * desired receive ring. | |
7361 | * Return Value: SUCCESS on success and | |
7362 | * '-1' on failure (endian settings incorrect). | |
7363 | */ | |
7364 | static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring) | |
7365 | { | |
7366 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
7367 | register u64 val64 = 0; | |
7368 | ||
7369 | if (ds_codepoint > 63) | |
7370 | return FAILURE; | |
7371 | ||
7372 | val64 = RTS_DS_MEM_DATA(ring); | |
7373 | writeq(val64, &bar0->rts_ds_mem_data); | |
7374 | ||
7375 | val64 = RTS_DS_MEM_CTRL_WE | | |
7376 | RTS_DS_MEM_CTRL_STROBE_NEW_CMD | | |
7377 | RTS_DS_MEM_CTRL_OFFSET(ds_codepoint); | |
7378 | ||
7379 | writeq(val64, &bar0->rts_ds_mem_ctrl); | |
7380 | ||
7381 | return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl, | |
7382 | RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED, | |
7383 | S2IO_BIT_RESET); | |
7384 | } | |
7385 | ||
1da177e4 | 7386 | /** |
20346722 | 7387 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
7388 | * @pdev : structure containing the PCI related information of the device. |
7389 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
7390 | * Description: | |
7391 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 | 7392 | * All OS related initialization including memory and device structure and |
7393 | * initlaization of the device private variable is done. Also the swapper | |
7394 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
7395 | * registers of the device. |
7396 | * Return value: | |
7397 | * returns 0 on success and negative on failure. | |
7398 | */ | |
7399 | ||
7400 | static int __devinit | |
7401 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
7402 | { | |
1ee6dd77 | 7403 | struct s2io_nic *sp; |
1da177e4 | 7404 | struct net_device *dev; |
1da177e4 LT |
7405 | int i, j, ret; |
7406 | int dma_flag = FALSE; | |
7407 | u32 mac_up, mac_down; | |
7408 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 7409 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 7410 | u16 subid; |
1ee6dd77 | 7411 | struct mac_info *mac_control; |
1da177e4 | 7412 | struct config_param *config; |
541ae68f | 7413 | int mode; |
cc6e7c44 | 7414 | u8 dev_intr_type = intr_type; |
0795af57 | 7415 | DECLARE_MAC_BUF(mac); |
1da177e4 | 7416 | |
9dc737a7 AR |
7417 | if ((ret = s2io_verify_parm(pdev, &dev_intr_type))) |
7418 | return ret; | |
1da177e4 LT |
7419 | |
7420 | if ((ret = pci_enable_device(pdev))) { | |
7421 | DBG_PRINT(ERR_DBG, | |
7422 | "s2io_init_nic: pci_enable_device failed\n"); | |
7423 | return ret; | |
7424 | } | |
7425 | ||
1e7f0bd8 | 7426 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7427 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n"); |
7428 | dma_flag = TRUE; | |
1da177e4 | 7429 | if (pci_set_consistent_dma_mask |
1e7f0bd8 | 7430 | (pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7431 | DBG_PRINT(ERR_DBG, |
7432 | "Unable to obtain 64bit DMA for \ | |
7433 | consistent allocations\n"); | |
7434 | pci_disable_device(pdev); | |
7435 | return -ENOMEM; | |
7436 | } | |
1e7f0bd8 | 7437 | } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
1da177e4 LT |
7438 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n"); |
7439 | } else { | |
7440 | pci_disable_device(pdev); | |
7441 | return -ENOMEM; | |
7442 | } | |
eccb8628 VP |
7443 | if ((ret = pci_request_regions(pdev, s2io_driver_name))) { |
7444 | DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x \n", __FUNCTION__, ret); | |
7445 | pci_disable_device(pdev); | |
7446 | return -ENODEV; | |
1da177e4 LT |
7447 | } |
7448 | ||
1ee6dd77 | 7449 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 LT |
7450 | if (dev == NULL) { |
7451 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
7452 | pci_disable_device(pdev); | |
7453 | pci_release_regions(pdev); | |
7454 | return -ENODEV; | |
7455 | } | |
7456 | ||
7457 | pci_set_master(pdev); | |
7458 | pci_set_drvdata(pdev, dev); | |
1da177e4 LT |
7459 | SET_NETDEV_DEV(dev, &pdev->dev); |
7460 | ||
7461 | /* Private member variable initialized to s2io NIC structure */ | |
7462 | sp = dev->priv; | |
1ee6dd77 | 7463 | memset(sp, 0, sizeof(struct s2io_nic)); |
1da177e4 LT |
7464 | sp->dev = dev; |
7465 | sp->pdev = pdev; | |
1da177e4 | 7466 | sp->high_dma_flag = dma_flag; |
1da177e4 | 7467 | sp->device_enabled_once = FALSE; |
da6971d8 AR |
7468 | if (rx_ring_mode == 1) |
7469 | sp->rxd_mode = RXD_MODE_1; | |
7470 | if (rx_ring_mode == 2) | |
7471 | sp->rxd_mode = RXD_MODE_3B; | |
da6971d8 | 7472 | |
eaae7f72 | 7473 | sp->config.intr_type = dev_intr_type; |
1da177e4 | 7474 | |
541ae68f | 7475 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
7476 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) | |
7477 | sp->device_type = XFRAME_II_DEVICE; | |
7478 | else | |
7479 | sp->device_type = XFRAME_I_DEVICE; | |
7480 | ||
43b7c451 | 7481 | sp->lro = lro_enable; |
6aa20a22 | 7482 | |
1da177e4 LT |
7483 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
7484 | s2io_init_pci(sp); | |
7485 | ||
20346722 | 7486 | /* |
1da177e4 | 7487 | * Setting the device configuration parameters. |
20346722 | 7488 | * Most of these parameters can be specified by the user during |
7489 | * module insertion as they are module loadable parameters. If | |
7490 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
7491 | * are initialized with default values. |
7492 | */ | |
7493 | mac_control = &sp->mac_control; | |
7494 | config = &sp->config; | |
7495 | ||
596c5c97 SS |
7496 | config->napi = napi; |
7497 | ||
1da177e4 | 7498 | /* Tx side parameters. */ |
1da177e4 LT |
7499 | config->tx_fifo_num = tx_fifo_num; |
7500 | for (i = 0; i < MAX_TX_FIFOS; i++) { | |
7501 | config->tx_cfg[i].fifo_len = tx_fifo_len[i]; | |
7502 | config->tx_cfg[i].fifo_priority = i; | |
7503 | } | |
7504 | ||
20346722 | 7505 | /* mapping the QoS priority to the configured fifos */ |
7506 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
7507 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i]; | |
7508 | ||
1da177e4 LT |
7509 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
7510 | for (i = 0; i < config->tx_fifo_num; i++) { | |
7511 | config->tx_cfg[i].f_no_snoop = | |
7512 | (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
7513 | if (config->tx_cfg[i].fifo_len < 65) { | |
7514 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; | |
7515 | break; | |
7516 | } | |
7517 | } | |
fed5eccd AR |
7518 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
7519 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
7520 | |
7521 | /* Rx side parameters. */ | |
1da177e4 LT |
7522 | config->rx_ring_num = rx_ring_num; |
7523 | for (i = 0; i < MAX_RX_RINGS; i++) { | |
7524 | config->rx_cfg[i].num_rxd = rx_ring_sz[i] * | |
da6971d8 | 7525 | (rxd_count[sp->rxd_mode] + 1); |
1da177e4 LT |
7526 | config->rx_cfg[i].ring_priority = i; |
7527 | } | |
7528 | ||
7529 | for (i = 0; i < rx_ring_num; i++) { | |
7530 | config->rx_cfg[i].ring_org = RING_ORG_BUFF1; | |
7531 | config->rx_cfg[i].f_no_snoop = | |
7532 | (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
7533 | } | |
7534 | ||
7535 | /* Setting Mac Control parameters */ | |
7536 | mac_control->rmac_pause_time = rmac_pause_time; | |
7537 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
7538 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
7539 | ||
7540 | ||
7541 | /* Initialize Ring buffer parameters. */ | |
7542 | for (i = 0; i < config->rx_ring_num; i++) | |
7543 | atomic_set(&sp->rx_bufs_left[i], 0); | |
7544 | ||
7545 | /* initialize the shared memory used by the NIC and the host */ | |
7546 | if (init_shared_mem(sp)) { | |
7547 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", | |
b41477f3 | 7548 | dev->name); |
1da177e4 LT |
7549 | ret = -ENOMEM; |
7550 | goto mem_alloc_failed; | |
7551 | } | |
7552 | ||
7553 | sp->bar0 = ioremap(pci_resource_start(pdev, 0), | |
7554 | pci_resource_len(pdev, 0)); | |
7555 | if (!sp->bar0) { | |
19a60522 | 7556 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
7557 | dev->name); |
7558 | ret = -ENOMEM; | |
7559 | goto bar0_remap_failed; | |
7560 | } | |
7561 | ||
7562 | sp->bar1 = ioremap(pci_resource_start(pdev, 2), | |
7563 | pci_resource_len(pdev, 2)); | |
7564 | if (!sp->bar1) { | |
19a60522 | 7565 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
7566 | dev->name); |
7567 | ret = -ENOMEM; | |
7568 | goto bar1_remap_failed; | |
7569 | } | |
7570 | ||
7571 | dev->irq = pdev->irq; | |
7572 | dev->base_addr = (unsigned long) sp->bar0; | |
7573 | ||
7574 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
7575 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
1ee6dd77 | 7576 | mac_control->tx_FIFO_start[j] = (struct TxFIFO_element __iomem *) |
1da177e4 LT |
7577 | (sp->bar1 + (j * 0x00020000)); |
7578 | } | |
7579 | ||
7580 | /* Driver entry points */ | |
7581 | dev->open = &s2io_open; | |
7582 | dev->stop = &s2io_close; | |
7583 | dev->hard_start_xmit = &s2io_xmit; | |
7584 | dev->get_stats = &s2io_get_stats; | |
7585 | dev->set_multicast_list = &s2io_set_multicast; | |
7586 | dev->do_ioctl = &s2io_ioctl; | |
2fd37688 | 7587 | dev->set_mac_address = &s2io_set_mac_addr; |
1da177e4 LT |
7588 | dev->change_mtu = &s2io_change_mtu; |
7589 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
be3a6b02 | 7590 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
7591 | dev->vlan_rx_register = s2io_vlan_rx_register; | |
20346722 | 7592 | |
1da177e4 LT |
7593 | /* |
7594 | * will use eth_mac_addr() for dev->set_mac_address | |
7595 | * mac address will be set every time dev->open() is called | |
7596 | */ | |
bea3348e | 7597 | netif_napi_add(dev, &sp->napi, s2io_poll, 32); |
1da177e4 | 7598 | |
612eff0e BH |
7599 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7600 | dev->poll_controller = s2io_netpoll; | |
7601 | #endif | |
7602 | ||
1da177e4 LT |
7603 | dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; |
7604 | if (sp->high_dma_flag == TRUE) | |
7605 | dev->features |= NETIF_F_HIGHDMA; | |
1da177e4 | 7606 | dev->features |= NETIF_F_TSO; |
f83ef8c0 | 7607 | dev->features |= NETIF_F_TSO6; |
db874e65 | 7608 | if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) { |
fed5eccd AR |
7609 | dev->features |= NETIF_F_UFO; |
7610 | dev->features |= NETIF_F_HW_CSUM; | |
7611 | } | |
1da177e4 LT |
7612 | |
7613 | dev->tx_timeout = &s2io_tx_watchdog; | |
7614 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; | |
c4028958 DH |
7615 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
7616 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 7617 | |
e960fc5c | 7618 | pci_save_state(sp->pdev); |
1da177e4 LT |
7619 | |
7620 | /* Setting swapper control on the NIC, for proper reset operation */ | |
7621 | if (s2io_set_swapper(sp)) { | |
7622 | DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n", | |
7623 | dev->name); | |
7624 | ret = -EAGAIN; | |
7625 | goto set_swap_failed; | |
7626 | } | |
7627 | ||
541ae68f | 7628 | /* Verify if the Herc works on the slot its placed into */ |
7629 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7630 | mode = s2io_verify_pci_mode(sp); | |
7631 | if (mode < 0) { | |
7632 | DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__); | |
7633 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); | |
7634 | ret = -EBADSLT; | |
7635 | goto set_swap_failed; | |
7636 | } | |
7637 | } | |
7638 | ||
7639 | /* Not needed for Herc */ | |
7640 | if (sp->device_type & XFRAME_I_DEVICE) { | |
7641 | /* | |
7642 | * Fix for all "FFs" MAC address problems observed on | |
7643 | * Alpha platforms | |
7644 | */ | |
7645 | fix_mac_address(sp); | |
7646 | s2io_reset(sp); | |
7647 | } | |
1da177e4 LT |
7648 | |
7649 | /* | |
1da177e4 LT |
7650 | * MAC address initialization. |
7651 | * For now only one mac address will be read and used. | |
7652 | */ | |
7653 | bar0 = sp->bar0; | |
7654 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
7655 | RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET); | |
7656 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
c92ca04b | 7657 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 | 7658 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET); |
1da177e4 LT |
7659 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
7660 | mac_down = (u32) tmp64; | |
7661 | mac_up = (u32) (tmp64 >> 32); | |
7662 | ||
1da177e4 LT |
7663 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); |
7664 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
7665 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
7666 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
7667 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
7668 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
7669 | ||
1da177e4 LT |
7670 | /* Set the factory defined MAC address initially */ |
7671 | dev->addr_len = ETH_ALEN; | |
7672 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
2fd37688 | 7673 | memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN); |
1da177e4 | 7674 | |
c77dd43e SS |
7675 | /* Store the values of the MSIX table in the s2io_nic structure */ |
7676 | store_xmsi_data(sp); | |
b41477f3 AR |
7677 | /* reset Nic and bring it to known state */ |
7678 | s2io_reset(sp); | |
7679 | ||
1da177e4 | 7680 | /* |
20346722 | 7681 | * Initialize the tasklet status and link state flags |
541ae68f | 7682 | * and the card state parameter |
1da177e4 | 7683 | */ |
1da177e4 | 7684 | sp->tasklet_status = 0; |
92b84437 | 7685 | sp->state = 0; |
1da177e4 | 7686 | |
1da177e4 LT |
7687 | /* Initialize spinlocks */ |
7688 | spin_lock_init(&sp->tx_lock); | |
db874e65 SS |
7689 | |
7690 | if (!napi) | |
7691 | spin_lock_init(&sp->put_lock); | |
7ba013ac | 7692 | spin_lock_init(&sp->rx_lock); |
1da177e4 | 7693 | |
20346722 | 7694 | /* |
7695 | * SXE-002: Configure link and activity LED to init state | |
7696 | * on driver load. | |
1da177e4 LT |
7697 | */ |
7698 | subid = sp->pdev->subsystem_device; | |
7699 | if ((subid & 0xFF) >= 0x07) { | |
7700 | val64 = readq(&bar0->gpio_control); | |
7701 | val64 |= 0x0000800000000000ULL; | |
7702 | writeq(val64, &bar0->gpio_control); | |
7703 | val64 = 0x0411040400000000ULL; | |
7704 | writeq(val64, (void __iomem *) bar0 + 0x2700); | |
7705 | val64 = readq(&bar0->gpio_control); | |
7706 | } | |
7707 | ||
7708 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
7709 | ||
7710 | if (register_netdev(dev)) { | |
7711 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
7712 | ret = -ENODEV; | |
7713 | goto register_failed; | |
7714 | } | |
9dc737a7 | 7715 | s2io_vpd_read(sp); |
0c61ed5f | 7716 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n"); |
b41477f3 | 7717 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, |
44c10138 | 7718 | sp->product_name, pdev->revision); |
b41477f3 AR |
7719 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, |
7720 | s2io_driver_version); | |
0795af57 JP |
7721 | DBG_PRINT(ERR_DBG, "%s: MAC ADDR: %s\n", |
7722 | dev->name, print_mac(mac, dev->dev_addr)); | |
19a60522 | 7723 | DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num); |
9dc737a7 | 7724 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 7725 | mode = s2io_print_pci_mode(sp); |
541ae68f | 7726 | if (mode < 0) { |
9dc737a7 | 7727 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); |
541ae68f | 7728 | ret = -EBADSLT; |
9dc737a7 | 7729 | unregister_netdev(dev); |
541ae68f | 7730 | goto set_swap_failed; |
7731 | } | |
541ae68f | 7732 | } |
9dc737a7 AR |
7733 | switch(sp->rxd_mode) { |
7734 | case RXD_MODE_1: | |
7735 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
7736 | dev->name); | |
7737 | break; | |
7738 | case RXD_MODE_3B: | |
7739 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
7740 | dev->name); | |
7741 | break; | |
9dc737a7 | 7742 | } |
db874e65 SS |
7743 | |
7744 | if (napi) | |
7745 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); | |
eaae7f72 | 7746 | switch(sp->config.intr_type) { |
9dc737a7 AR |
7747 | case INTA: |
7748 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
7749 | break; | |
9dc737a7 AR |
7750 | case MSI_X: |
7751 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
7752 | break; | |
7753 | } | |
7d3d0439 RA |
7754 | if (sp->lro) |
7755 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", | |
9dc737a7 | 7756 | dev->name); |
db874e65 SS |
7757 | if (ufo) |
7758 | DBG_PRINT(ERR_DBG, "%s: UDP Fragmentation Offload(UFO)" | |
7759 | " enabled\n", dev->name); | |
7ba013ac | 7760 | /* Initialize device name */ |
9dc737a7 | 7761 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 7762 | |
20346722 | 7763 | /* |
7764 | * Make Link state as off at this point, when the Link change | |
7765 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
7766 | * the right state. |
7767 | */ | |
7768 | netif_carrier_off(dev); | |
1da177e4 LT |
7769 | |
7770 | return 0; | |
7771 | ||
7772 | register_failed: | |
7773 | set_swap_failed: | |
7774 | iounmap(sp->bar1); | |
7775 | bar1_remap_failed: | |
7776 | iounmap(sp->bar0); | |
7777 | bar0_remap_failed: | |
7778 | mem_alloc_failed: | |
7779 | free_shared_mem(sp); | |
7780 | pci_disable_device(pdev); | |
eccb8628 | 7781 | pci_release_regions(pdev); |
1da177e4 LT |
7782 | pci_set_drvdata(pdev, NULL); |
7783 | free_netdev(dev); | |
7784 | ||
7785 | return ret; | |
7786 | } | |
7787 | ||
7788 | /** | |
20346722 | 7789 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 7790 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 7791 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 7792 | * PCI device and free up all resource held up by the device. This could |
20346722 | 7793 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
7794 | * from memory. |
7795 | */ | |
7796 | ||
7797 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
7798 | { | |
7799 | struct net_device *dev = | |
7800 | (struct net_device *) pci_get_drvdata(pdev); | |
1ee6dd77 | 7801 | struct s2io_nic *sp; |
1da177e4 LT |
7802 | |
7803 | if (dev == NULL) { | |
7804 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
7805 | return; | |
7806 | } | |
7807 | ||
22747d6b FR |
7808 | flush_scheduled_work(); |
7809 | ||
1da177e4 LT |
7810 | sp = dev->priv; |
7811 | unregister_netdev(dev); | |
7812 | ||
7813 | free_shared_mem(sp); | |
7814 | iounmap(sp->bar0); | |
7815 | iounmap(sp->bar1); | |
eccb8628 | 7816 | pci_release_regions(pdev); |
1da177e4 | 7817 | pci_set_drvdata(pdev, NULL); |
1da177e4 | 7818 | free_netdev(dev); |
19a60522 | 7819 | pci_disable_device(pdev); |
1da177e4 LT |
7820 | } |
7821 | ||
7822 | /** | |
7823 | * s2io_starter - Entry point for the driver | |
7824 | * Description: This function is the entry point for the driver. It verifies | |
7825 | * the module loadable parameters and initializes PCI configuration space. | |
7826 | */ | |
7827 | ||
43b7c451 | 7828 | static int __init s2io_starter(void) |
1da177e4 | 7829 | { |
29917620 | 7830 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
7831 | } |
7832 | ||
7833 | /** | |
20346722 | 7834 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
7835 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
7836 | */ | |
7837 | ||
372cc597 | 7838 | static __exit void s2io_closer(void) |
1da177e4 LT |
7839 | { |
7840 | pci_unregister_driver(&s2io_driver); | |
7841 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
7842 | } | |
7843 | ||
7844 | module_init(s2io_starter); | |
7845 | module_exit(s2io_closer); | |
7d3d0439 | 7846 | |
6aa20a22 | 7847 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
1ee6dd77 | 7848 | struct tcphdr **tcp, struct RxD_t *rxdp) |
7d3d0439 RA |
7849 | { |
7850 | int ip_off; | |
7851 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
7852 | ||
7853 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
7854 | DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n", | |
7855 | __FUNCTION__); | |
7856 | return -1; | |
7857 | } | |
7858 | ||
7859 | /* TODO: | |
7860 | * By default the VLAN field in the MAC is stripped by the card, if this | |
7861 | * feature is turned off in rx_pa_cfg register, then the ip_off field | |
7862 | * has to be shifted by a further 2 bytes | |
7863 | */ | |
7864 | switch (l2_type) { | |
7865 | case 0: /* DIX type */ | |
7866 | case 4: /* DIX type with VLAN */ | |
7867 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; | |
7868 | break; | |
7869 | /* LLC, SNAP etc are considered non-mergeable */ | |
7870 | default: | |
7871 | return -1; | |
7872 | } | |
7873 | ||
7874 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
7875 | ip_len = (u8)((*ip)->ihl); | |
7876 | ip_len <<= 2; | |
7877 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
7878 | ||
7879 | return 0; | |
7880 | } | |
7881 | ||
1ee6dd77 | 7882 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7883 | struct tcphdr *tcp) |
7884 | { | |
7885 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7886 | if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) || | |
7887 | (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest)) | |
7888 | return -1; | |
7889 | return 0; | |
7890 | } | |
7891 | ||
7892 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
7893 | { | |
7894 | return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2)); | |
7895 | } | |
7896 | ||
1ee6dd77 | 7897 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
7d3d0439 RA |
7898 | struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len) |
7899 | { | |
7900 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7901 | lro->l2h = l2h; | |
7902 | lro->iph = ip; | |
7903 | lro->tcph = tcp; | |
7904 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
7905 | lro->tcp_ack = ntohl(tcp->ack_seq); | |
7906 | lro->sg_num = 1; | |
7907 | lro->total_len = ntohs(ip->tot_len); | |
7908 | lro->frags_len = 0; | |
6aa20a22 | 7909 | /* |
7d3d0439 RA |
7910 | * check if we saw TCP timestamp. Other consistency checks have |
7911 | * already been done. | |
7912 | */ | |
7913 | if (tcp->doff == 8) { | |
7914 | u32 *ptr; | |
7915 | ptr = (u32 *)(tcp+1); | |
7916 | lro->saw_ts = 1; | |
7917 | lro->cur_tsval = *(ptr+1); | |
7918 | lro->cur_tsecr = *(ptr+2); | |
7919 | } | |
7920 | lro->in_use = 1; | |
7921 | } | |
7922 | ||
1ee6dd77 | 7923 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
7924 | { |
7925 | struct iphdr *ip = lro->iph; | |
7926 | struct tcphdr *tcp = lro->tcph; | |
bd4f3ae1 | 7927 | __sum16 nchk; |
1ee6dd77 | 7928 | struct stat_block *statinfo = sp->mac_control.stats_info; |
7d3d0439 RA |
7929 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7930 | ||
7931 | /* Update L3 header */ | |
7932 | ip->tot_len = htons(lro->total_len); | |
7933 | ip->check = 0; | |
7934 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
7935 | ip->check = nchk; | |
7936 | ||
7937 | /* Update L4 header */ | |
7938 | tcp->ack_seq = lro->tcp_ack; | |
7939 | tcp->window = lro->window; | |
7940 | ||
7941 | /* Update tsecr field if this session has timestamps enabled */ | |
7942 | if (lro->saw_ts) { | |
7943 | u32 *ptr = (u32 *)(tcp + 1); | |
7944 | *(ptr+2) = lro->cur_tsecr; | |
7945 | } | |
7946 | ||
7947 | /* Update counters required for calculation of | |
7948 | * average no. of packets aggregated. | |
7949 | */ | |
7950 | statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num; | |
7951 | statinfo->sw_stat.num_aggregations++; | |
7952 | } | |
7953 | ||
1ee6dd77 | 7954 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7955 | struct tcphdr *tcp, u32 l4_pyld) |
7956 | { | |
7957 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7958 | lro->total_len += l4_pyld; | |
7959 | lro->frags_len += l4_pyld; | |
7960 | lro->tcp_next_seq += l4_pyld; | |
7961 | lro->sg_num++; | |
7962 | ||
7963 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
7964 | lro->tcp_ack = tcp->ack_seq; | |
7965 | lro->window = tcp->window; | |
6aa20a22 | 7966 | |
7d3d0439 RA |
7967 | if (lro->saw_ts) { |
7968 | u32 *ptr; | |
7969 | /* Update tsecr and tsval from this packet */ | |
7970 | ptr = (u32 *) (tcp + 1); | |
6aa20a22 | 7971 | lro->cur_tsval = *(ptr + 1); |
7d3d0439 RA |
7972 | lro->cur_tsecr = *(ptr + 2); |
7973 | } | |
7974 | } | |
7975 | ||
1ee6dd77 | 7976 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
7977 | struct tcphdr *tcp, u32 tcp_pyld_len) |
7978 | { | |
7d3d0439 RA |
7979 | u8 *ptr; |
7980 | ||
79dc1901 AM |
7981 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7982 | ||
7d3d0439 RA |
7983 | if (!tcp_pyld_len) { |
7984 | /* Runt frame or a pure ack */ | |
7985 | return -1; | |
7986 | } | |
7987 | ||
7988 | if (ip->ihl != 5) /* IP has options */ | |
7989 | return -1; | |
7990 | ||
75c30b13 AR |
7991 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
7992 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
7993 | return -1; | |
7994 | ||
7995 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
7d3d0439 | 7996 | if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || |
75c30b13 | 7997 | tcp->ece || tcp->cwr || !tcp->ack) { |
7d3d0439 RA |
7998 | /* |
7999 | * Currently recognize only the ack control word and | |
8000 | * any other control field being set would result in | |
8001 | * flushing the LRO session | |
8002 | */ | |
8003 | return -1; | |
8004 | } | |
8005 | ||
6aa20a22 | 8006 | /* |
7d3d0439 RA |
8007 | * Allow only one TCP timestamp option. Don't aggregate if |
8008 | * any other options are detected. | |
8009 | */ | |
8010 | if (tcp->doff != 5 && tcp->doff != 8) | |
8011 | return -1; | |
8012 | ||
8013 | if (tcp->doff == 8) { | |
6aa20a22 | 8014 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
8015 | while (*ptr == TCPOPT_NOP) |
8016 | ptr++; | |
8017 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
8018 | return -1; | |
8019 | ||
8020 | /* Ensure timestamp value increases monotonically */ | |
8021 | if (l_lro) | |
8022 | if (l_lro->cur_tsval > *((u32 *)(ptr+2))) | |
8023 | return -1; | |
8024 | ||
8025 | /* timestamp echo reply should be non-zero */ | |
6aa20a22 | 8026 | if (*((u32 *)(ptr+6)) == 0) |
7d3d0439 RA |
8027 | return -1; |
8028 | } | |
8029 | ||
8030 | return 0; | |
8031 | } | |
8032 | ||
8033 | static int | |
1ee6dd77 RB |
8034 | s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro, |
8035 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
8036 | { |
8037 | struct iphdr *ip; | |
8038 | struct tcphdr *tcph; | |
8039 | int ret = 0, i; | |
8040 | ||
8041 | if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, | |
8042 | rxdp))) { | |
8043 | DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n", | |
8044 | ip->saddr, ip->daddr); | |
8045 | } else { | |
8046 | return ret; | |
8047 | } | |
8048 | ||
8049 | tcph = (struct tcphdr *)*tcp; | |
8050 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
8051 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 8052 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
8053 | if (l_lro->in_use) { |
8054 | if (check_for_socket_match(l_lro, ip, tcph)) | |
8055 | continue; | |
8056 | /* Sock pair matched */ | |
8057 | *lro = l_lro; | |
8058 | ||
8059 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
8060 | DBG_PRINT(INFO_DBG, "%s:Out of order. expected " | |
8061 | "0x%x, actual 0x%x\n", __FUNCTION__, | |
8062 | (*lro)->tcp_next_seq, | |
8063 | ntohl(tcph->seq)); | |
8064 | ||
8065 | sp->mac_control.stats_info-> | |
8066 | sw_stat.outof_sequence_pkts++; | |
8067 | ret = 2; | |
8068 | break; | |
8069 | } | |
8070 | ||
8071 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len)) | |
8072 | ret = 1; /* Aggregate */ | |
8073 | else | |
8074 | ret = 2; /* Flush both */ | |
8075 | break; | |
8076 | } | |
8077 | } | |
8078 | ||
8079 | if (ret == 0) { | |
8080 | /* Before searching for available LRO objects, | |
8081 | * check if the pkt is L3/L4 aggregatable. If not | |
8082 | * don't create new LRO session. Just send this | |
8083 | * packet up. | |
8084 | */ | |
8085 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) { | |
8086 | return 5; | |
8087 | } | |
8088 | ||
8089 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 8090 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
8091 | if (!(l_lro->in_use)) { |
8092 | *lro = l_lro; | |
8093 | ret = 3; /* Begin anew */ | |
8094 | break; | |
8095 | } | |
8096 | } | |
8097 | } | |
8098 | ||
8099 | if (ret == 0) { /* sessions exceeded */ | |
8100 | DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n", | |
8101 | __FUNCTION__); | |
8102 | *lro = NULL; | |
8103 | return ret; | |
8104 | } | |
8105 | ||
8106 | switch (ret) { | |
8107 | case 3: | |
8108 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len); | |
8109 | break; | |
8110 | case 2: | |
8111 | update_L3L4_header(sp, *lro); | |
8112 | break; | |
8113 | case 1: | |
8114 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
8115 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
8116 | update_L3L4_header(sp, *lro); | |
8117 | ret = 4; /* Flush the LRO */ | |
8118 | } | |
8119 | break; | |
8120 | default: | |
8121 | DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n", | |
8122 | __FUNCTION__); | |
8123 | break; | |
8124 | } | |
8125 | ||
8126 | return ret; | |
8127 | } | |
8128 | ||
1ee6dd77 | 8129 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 8130 | { |
1ee6dd77 | 8131 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
8132 | |
8133 | memset(lro, 0, lro_struct_size); | |
8134 | } | |
8135 | ||
8136 | static void queue_rx_frame(struct sk_buff *skb) | |
8137 | { | |
8138 | struct net_device *dev = skb->dev; | |
8139 | ||
8140 | skb->protocol = eth_type_trans(skb, dev); | |
db874e65 SS |
8141 | if (napi) |
8142 | netif_receive_skb(skb); | |
8143 | else | |
8144 | netif_rx(skb); | |
7d3d0439 RA |
8145 | } |
8146 | ||
1ee6dd77 RB |
8147 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
8148 | struct sk_buff *skb, | |
7d3d0439 RA |
8149 | u32 tcp_len) |
8150 | { | |
75c30b13 | 8151 | struct sk_buff *first = lro->parent; |
7d3d0439 RA |
8152 | |
8153 | first->len += tcp_len; | |
8154 | first->data_len = lro->frags_len; | |
8155 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
8156 | if (skb_shinfo(first)->frag_list) |
8157 | lro->last_frag->next = skb; | |
7d3d0439 RA |
8158 | else |
8159 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 8160 | first->truesize += skb->truesize; |
75c30b13 | 8161 | lro->last_frag = skb; |
7d3d0439 RA |
8162 | sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; |
8163 | return; | |
8164 | } | |
d796fdb7 LV |
8165 | |
8166 | /** | |
8167 | * s2io_io_error_detected - called when PCI error is detected | |
8168 | * @pdev: Pointer to PCI device | |
8453d43f | 8169 | * @state: The current pci connection state |
d796fdb7 LV |
8170 | * |
8171 | * This function is called after a PCI bus error affecting | |
8172 | * this device has been detected. | |
8173 | */ | |
8174 | static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, | |
8175 | pci_channel_state_t state) | |
8176 | { | |
8177 | struct net_device *netdev = pci_get_drvdata(pdev); | |
8178 | struct s2io_nic *sp = netdev->priv; | |
8179 | ||
8180 | netif_device_detach(netdev); | |
8181 | ||
8182 | if (netif_running(netdev)) { | |
8183 | /* Bring down the card, while avoiding PCI I/O */ | |
8184 | do_s2io_card_down(sp, 0); | |
d796fdb7 LV |
8185 | } |
8186 | pci_disable_device(pdev); | |
8187 | ||
8188 | return PCI_ERS_RESULT_NEED_RESET; | |
8189 | } | |
8190 | ||
8191 | /** | |
8192 | * s2io_io_slot_reset - called after the pci bus has been reset. | |
8193 | * @pdev: Pointer to PCI device | |
8194 | * | |
8195 | * Restart the card from scratch, as if from a cold-boot. | |
8196 | * At this point, the card has exprienced a hard reset, | |
8197 | * followed by fixups by BIOS, and has its config space | |
8198 | * set up identically to what it was at cold boot. | |
8199 | */ | |
8200 | static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev) | |
8201 | { | |
8202 | struct net_device *netdev = pci_get_drvdata(pdev); | |
8203 | struct s2io_nic *sp = netdev->priv; | |
8204 | ||
8205 | if (pci_enable_device(pdev)) { | |
8206 | printk(KERN_ERR "s2io: " | |
8207 | "Cannot re-enable PCI device after reset.\n"); | |
8208 | return PCI_ERS_RESULT_DISCONNECT; | |
8209 | } | |
8210 | ||
8211 | pci_set_master(pdev); | |
8212 | s2io_reset(sp); | |
8213 | ||
8214 | return PCI_ERS_RESULT_RECOVERED; | |
8215 | } | |
8216 | ||
8217 | /** | |
8218 | * s2io_io_resume - called when traffic can start flowing again. | |
8219 | * @pdev: Pointer to PCI device | |
8220 | * | |
8221 | * This callback is called when the error recovery driver tells | |
8222 | * us that its OK to resume normal operation. | |
8223 | */ | |
8224 | static void s2io_io_resume(struct pci_dev *pdev) | |
8225 | { | |
8226 | struct net_device *netdev = pci_get_drvdata(pdev); | |
8227 | struct s2io_nic *sp = netdev->priv; | |
8228 | ||
8229 | if (netif_running(netdev)) { | |
8230 | if (s2io_card_up(sp)) { | |
8231 | printk(KERN_ERR "s2io: " | |
8232 | "Can't bring device back up after reset.\n"); | |
8233 | return; | |
8234 | } | |
8235 | ||
8236 | if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) { | |
8237 | s2io_card_down(sp); | |
8238 | printk(KERN_ERR "s2io: " | |
8239 | "Can't resetore mac addr after reset.\n"); | |
8240 | return; | |
8241 | } | |
8242 | } | |
8243 | ||
8244 | netif_device_attach(netdev); | |
8245 | netif_wake_queue(netdev); | |
8246 | } |