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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 K |
14 | * Jeff Garzik : For pointing out the improper error condition |
15 | * check in the s2io_xmit routine and also some | |
16 | * issues in the Tx watch dog function. Also for | |
17 | * patiently answering all those innumerable | |
1da177e4 LT |
18 | * questions regaring the 2.6 porting issues. |
19 | * Stephen Hemminger : Providing proper 2.6 porting mechanism for some | |
20 | * macros available only in 2.6 Kernel. | |
20346722 | 21 | * Francois Romieu : For pointing out all code part that were |
1da177e4 | 22 | * deprecated and also styling related comments. |
20346722 | 23 | * Grant Grundler : For helping me get rid of some Architecture |
1da177e4 LT |
24 | * dependent code. |
25 | * Christopher Hellwig : Some more 2.6 specific issues in the driver. | |
20346722 | 26 | * |
1da177e4 LT |
27 | * The module loadable parameters that are supported by the driver and a brief |
28 | * explaination of all the variables. | |
9dc737a7 | 29 | * |
20346722 K |
30 | * rx_ring_num : This can be used to program the number of receive rings used |
31 | * in the driver. | |
9dc737a7 AR |
32 | * rx_ring_sz: This defines the number of receive blocks each ring can have. |
33 | * This is also an array of size 8. | |
da6971d8 | 34 | * rx_ring_mode: This defines the operation mode of all 8 rings. The valid |
6d517a27 | 35 | * values are 1, 2. |
1da177e4 | 36 | * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver. |
20346722 | 37 | * tx_fifo_len: This too is an array of 8. Each element defines the number of |
1da177e4 | 38 | * Tx descriptors that can be associated with each corresponding FIFO. |
9dc737a7 | 39 | * intr_type: This defines the type of interrupt. The values can be 0(INTA), |
8abc4d5b | 40 | * 2(MSI_X). Default value is '2(MSI_X)' |
9dc737a7 AR |
41 | * lro: Specifies whether to enable Large Receive Offload (LRO) or not. |
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 | ||
92c48799 | 87 | #define DRV_VERSION "2.0.26.1" |
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 K |
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 K |
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 K |
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 | ||
133 | /* Ethtool related variables and Macros. */ | |
134 | static char s2io_gstrings[][ETH_GSTRING_LEN] = { | |
135 | "Register test\t(offline)", | |
136 | "Eeprom test\t(offline)", | |
137 | "Link test\t(online)", | |
138 | "RLDRAM test\t(offline)", | |
139 | "BIST Test\t(offline)" | |
140 | }; | |
141 | ||
fa1f0cb3 | 142 | static char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
143 | {"tmac_frms"}, |
144 | {"tmac_data_octets"}, | |
145 | {"tmac_drop_frms"}, | |
146 | {"tmac_mcst_frms"}, | |
147 | {"tmac_bcst_frms"}, | |
148 | {"tmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
149 | {"tmac_ttl_octets"}, |
150 | {"tmac_ucst_frms"}, | |
151 | {"tmac_nucst_frms"}, | |
1da177e4 | 152 | {"tmac_any_err_frms"}, |
bd1034f0 | 153 | {"tmac_ttl_less_fb_octets"}, |
1da177e4 LT |
154 | {"tmac_vld_ip_octets"}, |
155 | {"tmac_vld_ip"}, | |
156 | {"tmac_drop_ip"}, | |
157 | {"tmac_icmp"}, | |
158 | {"tmac_rst_tcp"}, | |
159 | {"tmac_tcp"}, | |
160 | {"tmac_udp"}, | |
161 | {"rmac_vld_frms"}, | |
162 | {"rmac_data_octets"}, | |
163 | {"rmac_fcs_err_frms"}, | |
164 | {"rmac_drop_frms"}, | |
165 | {"rmac_vld_mcst_frms"}, | |
166 | {"rmac_vld_bcst_frms"}, | |
167 | {"rmac_in_rng_len_err_frms"}, | |
bd1034f0 | 168 | {"rmac_out_rng_len_err_frms"}, |
1da177e4 LT |
169 | {"rmac_long_frms"}, |
170 | {"rmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
171 | {"rmac_unsup_ctrl_frms"}, |
172 | {"rmac_ttl_octets"}, | |
173 | {"rmac_accepted_ucst_frms"}, | |
174 | {"rmac_accepted_nucst_frms"}, | |
1da177e4 | 175 | {"rmac_discarded_frms"}, |
bd1034f0 AR |
176 | {"rmac_drop_events"}, |
177 | {"rmac_ttl_less_fb_octets"}, | |
178 | {"rmac_ttl_frms"}, | |
1da177e4 LT |
179 | {"rmac_usized_frms"}, |
180 | {"rmac_osized_frms"}, | |
181 | {"rmac_frag_frms"}, | |
182 | {"rmac_jabber_frms"}, | |
bd1034f0 AR |
183 | {"rmac_ttl_64_frms"}, |
184 | {"rmac_ttl_65_127_frms"}, | |
185 | {"rmac_ttl_128_255_frms"}, | |
186 | {"rmac_ttl_256_511_frms"}, | |
187 | {"rmac_ttl_512_1023_frms"}, | |
188 | {"rmac_ttl_1024_1518_frms"}, | |
1da177e4 LT |
189 | {"rmac_ip"}, |
190 | {"rmac_ip_octets"}, | |
191 | {"rmac_hdr_err_ip"}, | |
192 | {"rmac_drop_ip"}, | |
193 | {"rmac_icmp"}, | |
194 | {"rmac_tcp"}, | |
195 | {"rmac_udp"}, | |
196 | {"rmac_err_drp_udp"}, | |
bd1034f0 AR |
197 | {"rmac_xgmii_err_sym"}, |
198 | {"rmac_frms_q0"}, | |
199 | {"rmac_frms_q1"}, | |
200 | {"rmac_frms_q2"}, | |
201 | {"rmac_frms_q3"}, | |
202 | {"rmac_frms_q4"}, | |
203 | {"rmac_frms_q5"}, | |
204 | {"rmac_frms_q6"}, | |
205 | {"rmac_frms_q7"}, | |
206 | {"rmac_full_q0"}, | |
207 | {"rmac_full_q1"}, | |
208 | {"rmac_full_q2"}, | |
209 | {"rmac_full_q3"}, | |
210 | {"rmac_full_q4"}, | |
211 | {"rmac_full_q5"}, | |
212 | {"rmac_full_q6"}, | |
213 | {"rmac_full_q7"}, | |
1da177e4 | 214 | {"rmac_pause_cnt"}, |
bd1034f0 AR |
215 | {"rmac_xgmii_data_err_cnt"}, |
216 | {"rmac_xgmii_ctrl_err_cnt"}, | |
1da177e4 LT |
217 | {"rmac_accepted_ip"}, |
218 | {"rmac_err_tcp"}, | |
bd1034f0 AR |
219 | {"rd_req_cnt"}, |
220 | {"new_rd_req_cnt"}, | |
221 | {"new_rd_req_rtry_cnt"}, | |
222 | {"rd_rtry_cnt"}, | |
223 | {"wr_rtry_rd_ack_cnt"}, | |
224 | {"wr_req_cnt"}, | |
225 | {"new_wr_req_cnt"}, | |
226 | {"new_wr_req_rtry_cnt"}, | |
227 | {"wr_rtry_cnt"}, | |
228 | {"wr_disc_cnt"}, | |
229 | {"rd_rtry_wr_ack_cnt"}, | |
230 | {"txp_wr_cnt"}, | |
231 | {"txd_rd_cnt"}, | |
232 | {"txd_wr_cnt"}, | |
233 | {"rxd_rd_cnt"}, | |
234 | {"rxd_wr_cnt"}, | |
235 | {"txf_rd_cnt"}, | |
fa1f0cb3 SS |
236 | {"rxf_wr_cnt"} |
237 | }; | |
238 | ||
239 | static char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = { | |
bd1034f0 AR |
240 | {"rmac_ttl_1519_4095_frms"}, |
241 | {"rmac_ttl_4096_8191_frms"}, | |
242 | {"rmac_ttl_8192_max_frms"}, | |
243 | {"rmac_ttl_gt_max_frms"}, | |
244 | {"rmac_osized_alt_frms"}, | |
245 | {"rmac_jabber_alt_frms"}, | |
246 | {"rmac_gt_max_alt_frms"}, | |
247 | {"rmac_vlan_frms"}, | |
248 | {"rmac_len_discard"}, | |
249 | {"rmac_fcs_discard"}, | |
250 | {"rmac_pf_discard"}, | |
251 | {"rmac_da_discard"}, | |
252 | {"rmac_red_discard"}, | |
253 | {"rmac_rts_discard"}, | |
254 | {"rmac_ingm_full_discard"}, | |
fa1f0cb3 SS |
255 | {"link_fault_cnt"} |
256 | }; | |
257 | ||
258 | static char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = { | |
7ba013ac K |
259 | {"\n DRIVER STATISTICS"}, |
260 | {"single_bit_ecc_errs"}, | |
261 | {"double_bit_ecc_errs"}, | |
bd1034f0 AR |
262 | {"parity_err_cnt"}, |
263 | {"serious_err_cnt"}, | |
264 | {"soft_reset_cnt"}, | |
265 | {"fifo_full_cnt"}, | |
266 | {"ring_full_cnt"}, | |
267 | ("alarm_transceiver_temp_high"), | |
268 | ("alarm_transceiver_temp_low"), | |
269 | ("alarm_laser_bias_current_high"), | |
270 | ("alarm_laser_bias_current_low"), | |
271 | ("alarm_laser_output_power_high"), | |
272 | ("alarm_laser_output_power_low"), | |
273 | ("warn_transceiver_temp_high"), | |
274 | ("warn_transceiver_temp_low"), | |
275 | ("warn_laser_bias_current_high"), | |
276 | ("warn_laser_bias_current_low"), | |
277 | ("warn_laser_output_power_high"), | |
278 | ("warn_laser_output_power_low"), | |
7d3d0439 RA |
279 | ("lro_aggregated_pkts"), |
280 | ("lro_flush_both_count"), | |
281 | ("lro_out_of_sequence_pkts"), | |
282 | ("lro_flush_due_to_max_pkts"), | |
283 | ("lro_avg_aggr_pkts"), | |
c53d4945 | 284 | ("mem_alloc_fail_cnt"), |
491abf25 | 285 | ("pci_map_fail_cnt"), |
491976b2 SH |
286 | ("watchdog_timer_cnt"), |
287 | ("mem_allocated"), | |
288 | ("mem_freed"), | |
289 | ("link_up_cnt"), | |
290 | ("link_down_cnt"), | |
291 | ("link_up_time"), | |
292 | ("link_down_time"), | |
293 | ("tx_tcode_buf_abort_cnt"), | |
294 | ("tx_tcode_desc_abort_cnt"), | |
295 | ("tx_tcode_parity_err_cnt"), | |
296 | ("tx_tcode_link_loss_cnt"), | |
297 | ("tx_tcode_list_proc_err_cnt"), | |
298 | ("rx_tcode_parity_err_cnt"), | |
299 | ("rx_tcode_abort_cnt"), | |
300 | ("rx_tcode_parity_abort_cnt"), | |
301 | ("rx_tcode_rda_fail_cnt"), | |
302 | ("rx_tcode_unkn_prot_cnt"), | |
303 | ("rx_tcode_fcs_err_cnt"), | |
304 | ("rx_tcode_buf_size_err_cnt"), | |
305 | ("rx_tcode_rxd_corrupt_cnt"), | |
306 | ("rx_tcode_unkn_err_cnt") | |
1da177e4 LT |
307 | }; |
308 | ||
fa1f0cb3 SS |
309 | #define S2IO_XENA_STAT_LEN sizeof(ethtool_xena_stats_keys)/ ETH_GSTRING_LEN |
310 | #define S2IO_ENHANCED_STAT_LEN sizeof(ethtool_enhanced_stats_keys)/ \ | |
311 | ETH_GSTRING_LEN | |
312 | #define S2IO_DRIVER_STAT_LEN sizeof(ethtool_driver_stats_keys)/ ETH_GSTRING_LEN | |
313 | ||
314 | #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN ) | |
315 | #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN ) | |
316 | ||
317 | #define XFRAME_I_STAT_STRINGS_LEN ( XFRAME_I_STAT_LEN * ETH_GSTRING_LEN ) | |
318 | #define XFRAME_II_STAT_STRINGS_LEN ( XFRAME_II_STAT_LEN * ETH_GSTRING_LEN ) | |
1da177e4 LT |
319 | |
320 | #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN | |
321 | #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN | |
322 | ||
25fff88e K |
323 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
324 | init_timer(&timer); \ | |
325 | timer.function = handle; \ | |
326 | timer.data = (unsigned long) arg; \ | |
327 | mod_timer(&timer, (jiffies + exp)) \ | |
328 | ||
be3a6b02 K |
329 | /* Add the vlan */ |
330 | static void s2io_vlan_rx_register(struct net_device *dev, | |
331 | struct vlan_group *grp) | |
332 | { | |
1ee6dd77 | 333 | struct s2io_nic *nic = dev->priv; |
be3a6b02 K |
334 | unsigned long flags; |
335 | ||
336 | spin_lock_irqsave(&nic->tx_lock, flags); | |
337 | nic->vlgrp = grp; | |
338 | spin_unlock_irqrestore(&nic->tx_lock, flags); | |
339 | } | |
340 | ||
926930b2 | 341 | /* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */ |
7b490343 | 342 | static int vlan_strip_flag; |
926930b2 | 343 | |
20346722 | 344 | /* |
1da177e4 LT |
345 | * Constants to be programmed into the Xena's registers, to configure |
346 | * the XAUI. | |
347 | */ | |
348 | ||
1da177e4 | 349 | #define END_SIGN 0x0 |
f71e1309 | 350 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 351 | /* Set address */ |
e960fc5c | 352 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 353 | /* Write data */ |
e960fc5c | 354 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f K |
355 | /* Set address */ |
356 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
357 | /* Write data */ | |
358 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
359 | /* Set address */ | |
e960fc5c | 360 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
361 | /* Write data */ | |
362 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
363 | /* Set address */ | |
541ae68f K |
364 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
365 | /* Write data */ | |
366 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
367 | /* Done */ | |
368 | END_SIGN | |
369 | }; | |
370 | ||
f71e1309 | 371 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 372 | /* Set address */ |
1da177e4 | 373 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
374 | /* Write data */ |
375 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
376 | /* Set address */ | |
377 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
378 | /* Write data */ | |
379 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
380 | /* Set address */ | |
1da177e4 | 381 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
382 | /* Write data */ |
383 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
384 | END_SIGN |
385 | }; | |
386 | ||
20346722 | 387 | /* |
1da177e4 LT |
388 | * Constants for Fixing the MacAddress problem seen mostly on |
389 | * Alpha machines. | |
390 | */ | |
f71e1309 | 391 | static const u64 fix_mac[] = { |
1da177e4 LT |
392 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
393 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
394 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
395 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
396 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
397 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
398 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
399 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
400 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
401 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
402 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
403 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
404 | 0x0020600000000000ULL, 0x0000600000000000ULL, | |
405 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
406 | END_SIGN | |
407 | }; | |
408 | ||
b41477f3 AR |
409 | MODULE_LICENSE("GPL"); |
410 | MODULE_VERSION(DRV_VERSION); | |
411 | ||
412 | ||
1da177e4 | 413 | /* Module Loadable parameters. */ |
b41477f3 AR |
414 | S2IO_PARM_INT(tx_fifo_num, 1); |
415 | S2IO_PARM_INT(rx_ring_num, 1); | |
416 | ||
417 | ||
418 | S2IO_PARM_INT(rx_ring_mode, 1); | |
419 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
420 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
421 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
422 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
423 | S2IO_PARM_INT(shared_splits, 0); | |
424 | S2IO_PARM_INT(tmac_util_period, 5); | |
425 | S2IO_PARM_INT(rmac_util_period, 5); | |
426 | S2IO_PARM_INT(bimodal, 0); | |
427 | S2IO_PARM_INT(l3l4hdr_size, 128); | |
303bcb4b | 428 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 429 | S2IO_PARM_INT(rxsync_frequency, 3); |
eccb8628 | 430 | /* Interrupt type. Values can be 0(INTA), 2(MSI_X) */ |
8abc4d5b | 431 | S2IO_PARM_INT(intr_type, 2); |
7d3d0439 | 432 | /* Large receive offload feature */ |
b41477f3 | 433 | S2IO_PARM_INT(lro, 0); |
7d3d0439 RA |
434 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
435 | * aggregation happens until we hit max IP pkt size(64K) | |
436 | */ | |
b41477f3 | 437 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 438 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
439 | |
440 | S2IO_PARM_INT(napi, 1); | |
441 | S2IO_PARM_INT(ufo, 0); | |
926930b2 | 442 | S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC); |
b41477f3 AR |
443 | |
444 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
445 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; | |
446 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = | |
447 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; | |
448 | static unsigned int rts_frm_len[MAX_RX_RINGS] = | |
449 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; | |
450 | ||
451 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
452 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
453 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 454 | |
20346722 | 455 | /* |
1da177e4 | 456 | * S2IO device table. |
20346722 | 457 | * This table lists all the devices that this driver supports. |
1da177e4 LT |
458 | */ |
459 | static struct pci_device_id s2io_tbl[] __devinitdata = { | |
460 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, | |
461 | PCI_ANY_ID, PCI_ANY_ID}, | |
462 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
463 | PCI_ANY_ID, PCI_ANY_ID}, | |
464 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
20346722 K |
465 | PCI_ANY_ID, PCI_ANY_ID}, |
466 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
467 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
468 | {0,} |
469 | }; | |
470 | ||
471 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
472 | ||
d796fdb7 LV |
473 | static struct pci_error_handlers s2io_err_handler = { |
474 | .error_detected = s2io_io_error_detected, | |
475 | .slot_reset = s2io_io_slot_reset, | |
476 | .resume = s2io_io_resume, | |
477 | }; | |
478 | ||
1da177e4 LT |
479 | static struct pci_driver s2io_driver = { |
480 | .name = "S2IO", | |
481 | .id_table = s2io_tbl, | |
482 | .probe = s2io_init_nic, | |
483 | .remove = __devexit_p(s2io_rem_nic), | |
d796fdb7 | 484 | .err_handler = &s2io_err_handler, |
1da177e4 LT |
485 | }; |
486 | ||
487 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
488 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
489 | ||
490 | /** | |
491 | * init_shared_mem - Allocation and Initialization of Memory | |
492 | * @nic: Device private variable. | |
20346722 K |
493 | * Description: The function allocates all the memory areas shared |
494 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
495 | * Rx descriptors and the statistics block. |
496 | */ | |
497 | ||
498 | static int init_shared_mem(struct s2io_nic *nic) | |
499 | { | |
500 | u32 size; | |
501 | void *tmp_v_addr, *tmp_v_addr_next; | |
502 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 503 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 504 | int i, j, blk_cnt; |
1da177e4 LT |
505 | int lst_size, lst_per_page; |
506 | struct net_device *dev = nic->dev; | |
8ae418cf | 507 | unsigned long tmp; |
1ee6dd77 | 508 | struct buffAdd *ba; |
1da177e4 | 509 | |
1ee6dd77 | 510 | struct mac_info *mac_control; |
1da177e4 | 511 | struct config_param *config; |
491976b2 | 512 | unsigned long long mem_allocated = 0; |
1da177e4 LT |
513 | |
514 | mac_control = &nic->mac_control; | |
515 | config = &nic->config; | |
516 | ||
517 | ||
518 | /* Allocation and initialization of TXDLs in FIOFs */ | |
519 | size = 0; | |
520 | for (i = 0; i < config->tx_fifo_num; i++) { | |
521 | size += config->tx_cfg[i].fifo_len; | |
522 | } | |
523 | if (size > MAX_AVAILABLE_TXDS) { | |
b41477f3 | 524 | DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); |
0b1f7ebe | 525 | DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); |
b41477f3 | 526 | return -EINVAL; |
1da177e4 LT |
527 | } |
528 | ||
1ee6dd77 | 529 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
530 | lst_per_page = PAGE_SIZE / lst_size; |
531 | ||
532 | for (i = 0; i < config->tx_fifo_num; i++) { | |
533 | int fifo_len = config->tx_cfg[i].fifo_len; | |
1ee6dd77 | 534 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
20346722 K |
535 | mac_control->fifos[i].list_info = kmalloc(list_holder_size, |
536 | GFP_KERNEL); | |
537 | if (!mac_control->fifos[i].list_info) { | |
0c61ed5f | 538 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
539 | "Malloc failed for list_info\n"); |
540 | return -ENOMEM; | |
541 | } | |
491976b2 | 542 | mem_allocated += list_holder_size; |
20346722 | 543 | memset(mac_control->fifos[i].list_info, 0, list_holder_size); |
1da177e4 LT |
544 | } |
545 | for (i = 0; i < config->tx_fifo_num; i++) { | |
546 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
547 | lst_per_page); | |
20346722 K |
548 | mac_control->fifos[i].tx_curr_put_info.offset = 0; |
549 | mac_control->fifos[i].tx_curr_put_info.fifo_len = | |
1da177e4 | 550 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
551 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
552 | mac_control->fifos[i].tx_curr_get_info.fifo_len = | |
1da177e4 | 553 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
554 | mac_control->fifos[i].fifo_no = i; |
555 | mac_control->fifos[i].nic = nic; | |
fed5eccd | 556 | mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 2; |
20346722 | 557 | |
1da177e4 LT |
558 | for (j = 0; j < page_num; j++) { |
559 | int k = 0; | |
560 | dma_addr_t tmp_p; | |
561 | void *tmp_v; | |
562 | tmp_v = pci_alloc_consistent(nic->pdev, | |
563 | PAGE_SIZE, &tmp_p); | |
564 | if (!tmp_v) { | |
0c61ed5f | 565 | DBG_PRINT(INFO_DBG, |
1da177e4 | 566 | "pci_alloc_consistent "); |
0c61ed5f | 567 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
1da177e4 LT |
568 | return -ENOMEM; |
569 | } | |
776bd20f | 570 | /* If we got a zero DMA address(can happen on |
571 | * certain platforms like PPC), reallocate. | |
572 | * Store virtual address of page we don't want, | |
573 | * to be freed later. | |
574 | */ | |
575 | if (!tmp_p) { | |
576 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 577 | DBG_PRINT(INIT_DBG, |
776bd20f | 578 | "%s: Zero DMA address for TxDL. ", dev->name); |
6aa20a22 | 579 | DBG_PRINT(INIT_DBG, |
6b4d617d | 580 | "Virtual address %p\n", tmp_v); |
776bd20f | 581 | tmp_v = pci_alloc_consistent(nic->pdev, |
582 | PAGE_SIZE, &tmp_p); | |
583 | if (!tmp_v) { | |
0c61ed5f | 584 | DBG_PRINT(INFO_DBG, |
776bd20f | 585 | "pci_alloc_consistent "); |
0c61ed5f | 586 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
776bd20f | 587 | return -ENOMEM; |
588 | } | |
491976b2 | 589 | mem_allocated += PAGE_SIZE; |
776bd20f | 590 | } |
1da177e4 LT |
591 | while (k < lst_per_page) { |
592 | int l = (j * lst_per_page) + k; | |
593 | if (l == config->tx_cfg[i].fifo_len) | |
20346722 K |
594 | break; |
595 | mac_control->fifos[i].list_info[l].list_virt_addr = | |
1da177e4 | 596 | tmp_v + (k * lst_size); |
20346722 | 597 | mac_control->fifos[i].list_info[l].list_phy_addr = |
1da177e4 LT |
598 | tmp_p + (k * lst_size); |
599 | k++; | |
600 | } | |
601 | } | |
602 | } | |
1da177e4 | 603 | |
4384247b | 604 | nic->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); |
fed5eccd AR |
605 | if (!nic->ufo_in_band_v) |
606 | return -ENOMEM; | |
491976b2 | 607 | mem_allocated += (size * sizeof(u64)); |
fed5eccd | 608 | |
1da177e4 LT |
609 | /* Allocation and initialization of RXDs in Rings */ |
610 | size = 0; | |
611 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
612 | if (config->rx_cfg[i].num_rxd % |
613 | (rxd_count[nic->rxd_mode] + 1)) { | |
1da177e4 LT |
614 | DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name); |
615 | DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ", | |
616 | i); | |
617 | DBG_PRINT(ERR_DBG, "RxDs per Block"); | |
618 | return FAILURE; | |
619 | } | |
620 | size += config->rx_cfg[i].num_rxd; | |
20346722 | 621 | mac_control->rings[i].block_count = |
da6971d8 AR |
622 | config->rx_cfg[i].num_rxd / |
623 | (rxd_count[nic->rxd_mode] + 1 ); | |
624 | mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd - | |
625 | mac_control->rings[i].block_count; | |
1da177e4 | 626 | } |
da6971d8 | 627 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 628 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 629 | else |
1ee6dd77 | 630 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
631 | |
632 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
633 | mac_control->rings[i].rx_curr_get_info.block_index = 0; |
634 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
635 | mac_control->rings[i].rx_curr_get_info.ring_len = | |
1da177e4 | 636 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
637 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
638 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
639 | mac_control->rings[i].rx_curr_put_info.ring_len = | |
1da177e4 | 640 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
641 | mac_control->rings[i].nic = nic; |
642 | mac_control->rings[i].ring_no = i; | |
643 | ||
da6971d8 AR |
644 | blk_cnt = config->rx_cfg[i].num_rxd / |
645 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
646 | /* Allocating all the Rx blocks */ |
647 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 648 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
649 | int l; |
650 | ||
651 | rx_blocks = &mac_control->rings[i].rx_blocks[j]; | |
652 | size = SIZE_OF_BLOCK; //size is always page size | |
1da177e4 LT |
653 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
654 | &tmp_p_addr); | |
655 | if (tmp_v_addr == NULL) { | |
656 | /* | |
20346722 K |
657 | * In case of failure, free_shared_mem() |
658 | * is called, which should free any | |
659 | * memory that was alloced till the | |
1da177e4 LT |
660 | * failure happened. |
661 | */ | |
da6971d8 | 662 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
663 | return -ENOMEM; |
664 | } | |
491976b2 | 665 | mem_allocated += size; |
1da177e4 | 666 | memset(tmp_v_addr, 0, size); |
da6971d8 AR |
667 | rx_blocks->block_virt_addr = tmp_v_addr; |
668 | rx_blocks->block_dma_addr = tmp_p_addr; | |
1ee6dd77 | 669 | rx_blocks->rxds = kmalloc(sizeof(struct rxd_info)* |
da6971d8 AR |
670 | rxd_count[nic->rxd_mode], |
671 | GFP_KERNEL); | |
372cc597 SS |
672 | if (!rx_blocks->rxds) |
673 | return -ENOMEM; | |
491976b2 SH |
674 | mem_allocated += |
675 | (sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); | |
da6971d8 AR |
676 | for (l=0; l<rxd_count[nic->rxd_mode];l++) { |
677 | rx_blocks->rxds[l].virt_addr = | |
678 | rx_blocks->block_virt_addr + | |
679 | (rxd_size[nic->rxd_mode] * l); | |
680 | rx_blocks->rxds[l].dma_addr = | |
681 | rx_blocks->block_dma_addr + | |
682 | (rxd_size[nic->rxd_mode] * l); | |
683 | } | |
1da177e4 LT |
684 | } |
685 | /* Interlinking all Rx Blocks */ | |
686 | for (j = 0; j < blk_cnt; j++) { | |
20346722 K |
687 | tmp_v_addr = |
688 | mac_control->rings[i].rx_blocks[j].block_virt_addr; | |
1da177e4 | 689 | tmp_v_addr_next = |
20346722 | 690 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 | 691 | blk_cnt].block_virt_addr; |
20346722 K |
692 | tmp_p_addr = |
693 | mac_control->rings[i].rx_blocks[j].block_dma_addr; | |
1da177e4 | 694 | tmp_p_addr_next = |
20346722 | 695 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 LT |
696 | blk_cnt].block_dma_addr; |
697 | ||
1ee6dd77 | 698 | pre_rxd_blk = (struct RxD_block *) tmp_v_addr; |
1da177e4 LT |
699 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
700 | (unsigned long) tmp_v_addr_next; | |
1da177e4 LT |
701 | pre_rxd_blk->pNext_RxD_Blk_physical = |
702 | (u64) tmp_p_addr_next; | |
703 | } | |
704 | } | |
6d517a27 | 705 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
706 | /* |
707 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
708 | * and the buffers as well. | |
709 | */ | |
710 | for (i = 0; i < config->rx_ring_num; i++) { | |
711 | blk_cnt = config->rx_cfg[i].num_rxd / | |
712 | (rxd_count[nic->rxd_mode]+ 1); | |
713 | mac_control->rings[i].ba = | |
1ee6dd77 | 714 | kmalloc((sizeof(struct buffAdd *) * blk_cnt), |
1da177e4 | 715 | GFP_KERNEL); |
da6971d8 | 716 | if (!mac_control->rings[i].ba) |
1da177e4 | 717 | return -ENOMEM; |
491976b2 | 718 | mem_allocated +=(sizeof(struct buffAdd *) * blk_cnt); |
da6971d8 AR |
719 | for (j = 0; j < blk_cnt; j++) { |
720 | int k = 0; | |
721 | mac_control->rings[i].ba[j] = | |
1ee6dd77 | 722 | kmalloc((sizeof(struct buffAdd) * |
da6971d8 AR |
723 | (rxd_count[nic->rxd_mode] + 1)), |
724 | GFP_KERNEL); | |
725 | if (!mac_control->rings[i].ba[j]) | |
1da177e4 | 726 | return -ENOMEM; |
491976b2 SH |
727 | mem_allocated += (sizeof(struct buffAdd) * \ |
728 | (rxd_count[nic->rxd_mode] + 1)); | |
da6971d8 AR |
729 | while (k != rxd_count[nic->rxd_mode]) { |
730 | ba = &mac_control->rings[i].ba[j][k]; | |
731 | ||
732 | ba->ba_0_org = (void *) kmalloc | |
733 | (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL); | |
734 | if (!ba->ba_0_org) | |
735 | return -ENOMEM; | |
491976b2 SH |
736 | mem_allocated += |
737 | (BUF0_LEN + ALIGN_SIZE); | |
da6971d8 AR |
738 | tmp = (unsigned long)ba->ba_0_org; |
739 | tmp += ALIGN_SIZE; | |
740 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
741 | ba->ba_0 = (void *) tmp; | |
742 | ||
743 | ba->ba_1_org = (void *) kmalloc | |
744 | (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL); | |
745 | if (!ba->ba_1_org) | |
746 | return -ENOMEM; | |
491976b2 SH |
747 | mem_allocated |
748 | += (BUF1_LEN + ALIGN_SIZE); | |
da6971d8 AR |
749 | tmp = (unsigned long) ba->ba_1_org; |
750 | tmp += ALIGN_SIZE; | |
751 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
752 | ba->ba_1 = (void *) tmp; | |
753 | k++; | |
754 | } | |
1da177e4 LT |
755 | } |
756 | } | |
757 | } | |
1da177e4 LT |
758 | |
759 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 760 | size = sizeof(struct stat_block); |
1da177e4 LT |
761 | mac_control->stats_mem = pci_alloc_consistent |
762 | (nic->pdev, size, &mac_control->stats_mem_phy); | |
763 | ||
764 | if (!mac_control->stats_mem) { | |
20346722 K |
765 | /* |
766 | * In case of failure, free_shared_mem() is called, which | |
767 | * should free any memory that was alloced till the | |
1da177e4 LT |
768 | * failure happened. |
769 | */ | |
770 | return -ENOMEM; | |
771 | } | |
491976b2 | 772 | mem_allocated += size; |
1da177e4 LT |
773 | mac_control->stats_mem_sz = size; |
774 | ||
775 | tmp_v_addr = mac_control->stats_mem; | |
1ee6dd77 | 776 | mac_control->stats_info = (struct stat_block *) tmp_v_addr; |
1da177e4 | 777 | memset(tmp_v_addr, 0, size); |
1da177e4 LT |
778 | DBG_PRINT(INIT_DBG, "%s:Ring Mem PHY: 0x%llx\n", dev->name, |
779 | (unsigned long long) tmp_p_addr); | |
491976b2 | 780 | mac_control->stats_info->sw_stat.mem_allocated += mem_allocated; |
1da177e4 LT |
781 | return SUCCESS; |
782 | } | |
783 | ||
20346722 K |
784 | /** |
785 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
786 | * @nic: Device private variable. |
787 | * Description: This function is to free all memory locations allocated by | |
788 | * the init_shared_mem() function and return it to the kernel. | |
789 | */ | |
790 | ||
791 | static void free_shared_mem(struct s2io_nic *nic) | |
792 | { | |
793 | int i, j, blk_cnt, size; | |
491976b2 | 794 | u32 ufo_size = 0; |
1da177e4 LT |
795 | void *tmp_v_addr; |
796 | dma_addr_t tmp_p_addr; | |
1ee6dd77 | 797 | struct mac_info *mac_control; |
1da177e4 LT |
798 | struct config_param *config; |
799 | int lst_size, lst_per_page; | |
8910b49f | 800 | struct net_device *dev; |
491976b2 | 801 | int page_num = 0; |
1da177e4 LT |
802 | |
803 | if (!nic) | |
804 | return; | |
805 | ||
8910b49f MG |
806 | dev = nic->dev; |
807 | ||
1da177e4 LT |
808 | mac_control = &nic->mac_control; |
809 | config = &nic->config; | |
810 | ||
1ee6dd77 | 811 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
812 | lst_per_page = PAGE_SIZE / lst_size; |
813 | ||
814 | for (i = 0; i < config->tx_fifo_num; i++) { | |
491976b2 SH |
815 | ufo_size += config->tx_cfg[i].fifo_len; |
816 | page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
817 | lst_per_page); | |
1da177e4 LT |
818 | for (j = 0; j < page_num; j++) { |
819 | int mem_blks = (j * lst_per_page); | |
776bd20f | 820 | if (!mac_control->fifos[i].list_info) |
6aa20a22 | 821 | return; |
776bd20f | 822 | if (!mac_control->fifos[i].list_info[mem_blks]. |
823 | list_virt_addr) | |
1da177e4 LT |
824 | break; |
825 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
20346722 K |
826 | mac_control->fifos[i]. |
827 | list_info[mem_blks]. | |
1da177e4 | 828 | list_virt_addr, |
20346722 K |
829 | mac_control->fifos[i]. |
830 | list_info[mem_blks]. | |
1da177e4 | 831 | list_phy_addr); |
491976b2 SH |
832 | nic->mac_control.stats_info->sw_stat.mem_freed |
833 | += PAGE_SIZE; | |
1da177e4 | 834 | } |
776bd20f | 835 | /* If we got a zero DMA address during allocation, |
836 | * free the page now | |
837 | */ | |
838 | if (mac_control->zerodma_virt_addr) { | |
839 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
840 | mac_control->zerodma_virt_addr, | |
841 | (dma_addr_t)0); | |
6aa20a22 | 842 | DBG_PRINT(INIT_DBG, |
6b4d617d AM |
843 | "%s: Freeing TxDL with zero DMA addr. ", |
844 | dev->name); | |
845 | DBG_PRINT(INIT_DBG, "Virtual address %p\n", | |
846 | mac_control->zerodma_virt_addr); | |
491976b2 SH |
847 | nic->mac_control.stats_info->sw_stat.mem_freed |
848 | += PAGE_SIZE; | |
776bd20f | 849 | } |
20346722 | 850 | kfree(mac_control->fifos[i].list_info); |
491976b2 SH |
851 | nic->mac_control.stats_info->sw_stat.mem_freed += |
852 | (nic->config.tx_cfg[i].fifo_len *sizeof(struct list_info_hold)); | |
1da177e4 LT |
853 | } |
854 | ||
1da177e4 | 855 | size = SIZE_OF_BLOCK; |
1da177e4 | 856 | for (i = 0; i < config->rx_ring_num; i++) { |
20346722 | 857 | blk_cnt = mac_control->rings[i].block_count; |
1da177e4 | 858 | for (j = 0; j < blk_cnt; j++) { |
20346722 K |
859 | tmp_v_addr = mac_control->rings[i].rx_blocks[j]. |
860 | block_virt_addr; | |
861 | tmp_p_addr = mac_control->rings[i].rx_blocks[j]. | |
862 | block_dma_addr; | |
1da177e4 LT |
863 | if (tmp_v_addr == NULL) |
864 | break; | |
865 | pci_free_consistent(nic->pdev, size, | |
866 | tmp_v_addr, tmp_p_addr); | |
491976b2 | 867 | nic->mac_control.stats_info->sw_stat.mem_freed += size; |
da6971d8 | 868 | kfree(mac_control->rings[i].rx_blocks[j].rxds); |
491976b2 SH |
869 | nic->mac_control.stats_info->sw_stat.mem_freed += |
870 | ( sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); | |
1da177e4 LT |
871 | } |
872 | } | |
873 | ||
6d517a27 | 874 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
875 | /* Freeing buffer storage addresses in 2BUFF mode. */ |
876 | for (i = 0; i < config->rx_ring_num; i++) { | |
877 | blk_cnt = config->rx_cfg[i].num_rxd / | |
878 | (rxd_count[nic->rxd_mode] + 1); | |
879 | for (j = 0; j < blk_cnt; j++) { | |
880 | int k = 0; | |
881 | if (!mac_control->rings[i].ba[j]) | |
882 | continue; | |
883 | while (k != rxd_count[nic->rxd_mode]) { | |
1ee6dd77 | 884 | struct buffAdd *ba = |
da6971d8 AR |
885 | &mac_control->rings[i].ba[j][k]; |
886 | kfree(ba->ba_0_org); | |
491976b2 SH |
887 | nic->mac_control.stats_info->sw_stat.\ |
888 | mem_freed += (BUF0_LEN + ALIGN_SIZE); | |
da6971d8 | 889 | kfree(ba->ba_1_org); |
491976b2 SH |
890 | nic->mac_control.stats_info->sw_stat.\ |
891 | mem_freed += (BUF1_LEN + ALIGN_SIZE); | |
da6971d8 AR |
892 | k++; |
893 | } | |
894 | kfree(mac_control->rings[i].ba[j]); | |
491976b2 SH |
895 | nic->mac_control.stats_info->sw_stat.mem_freed += (sizeof(struct buffAdd) * |
896 | (rxd_count[nic->rxd_mode] + 1)); | |
1da177e4 | 897 | } |
da6971d8 | 898 | kfree(mac_control->rings[i].ba); |
491976b2 SH |
899 | nic->mac_control.stats_info->sw_stat.mem_freed += |
900 | (sizeof(struct buffAdd *) * blk_cnt); | |
1da177e4 | 901 | } |
1da177e4 | 902 | } |
1da177e4 LT |
903 | |
904 | if (mac_control->stats_mem) { | |
905 | pci_free_consistent(nic->pdev, | |
906 | mac_control->stats_mem_sz, | |
907 | mac_control->stats_mem, | |
908 | mac_control->stats_mem_phy); | |
491976b2 SH |
909 | nic->mac_control.stats_info->sw_stat.mem_freed += |
910 | mac_control->stats_mem_sz; | |
1da177e4 | 911 | } |
491976b2 | 912 | if (nic->ufo_in_band_v) { |
fed5eccd | 913 | kfree(nic->ufo_in_band_v); |
491976b2 SH |
914 | nic->mac_control.stats_info->sw_stat.mem_freed |
915 | += (ufo_size * sizeof(u64)); | |
916 | } | |
1da177e4 LT |
917 | } |
918 | ||
541ae68f K |
919 | /** |
920 | * s2io_verify_pci_mode - | |
921 | */ | |
922 | ||
1ee6dd77 | 923 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 924 | { |
1ee6dd77 | 925 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
926 | register u64 val64 = 0; |
927 | int mode; | |
928 | ||
929 | val64 = readq(&bar0->pci_mode); | |
930 | mode = (u8)GET_PCI_MODE(val64); | |
931 | ||
932 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
933 | return -1; /* Unknown PCI mode */ | |
934 | return mode; | |
935 | } | |
936 | ||
c92ca04b AR |
937 | #define NEC_VENID 0x1033 |
938 | #define NEC_DEVID 0x0125 | |
939 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
940 | { | |
941 | struct pci_dev *tdev = NULL; | |
26d36b64 AC |
942 | while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { |
943 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { | |
c92ca04b | 944 | if (tdev->bus == s2io_pdev->bus->parent) |
26d36b64 | 945 | pci_dev_put(tdev); |
c92ca04b AR |
946 | return 1; |
947 | } | |
948 | } | |
949 | return 0; | |
950 | } | |
541ae68f | 951 | |
7b32a312 | 952 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f K |
953 | /** |
954 | * s2io_print_pci_mode - | |
955 | */ | |
1ee6dd77 | 956 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 957 | { |
1ee6dd77 | 958 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
959 | register u64 val64 = 0; |
960 | int mode; | |
961 | struct config_param *config = &nic->config; | |
962 | ||
963 | val64 = readq(&bar0->pci_mode); | |
964 | mode = (u8)GET_PCI_MODE(val64); | |
965 | ||
966 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
967 | return -1; /* Unknown PCI mode */ | |
968 | ||
c92ca04b AR |
969 | config->bus_speed = bus_speed[mode]; |
970 | ||
971 | if (s2io_on_nec_bridge(nic->pdev)) { | |
972 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
973 | nic->dev->name); | |
974 | return mode; | |
975 | } | |
976 | ||
541ae68f K |
977 | if (val64 & PCI_MODE_32_BITS) { |
978 | DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name); | |
979 | } else { | |
980 | DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name); | |
981 | } | |
982 | ||
983 | switch(mode) { | |
984 | case PCI_MODE_PCI_33: | |
985 | DBG_PRINT(ERR_DBG, "33MHz PCI bus\n"); | |
541ae68f K |
986 | break; |
987 | case PCI_MODE_PCI_66: | |
988 | DBG_PRINT(ERR_DBG, "66MHz PCI bus\n"); | |
541ae68f K |
989 | break; |
990 | case PCI_MODE_PCIX_M1_66: | |
991 | DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n"); | |
541ae68f K |
992 | break; |
993 | case PCI_MODE_PCIX_M1_100: | |
994 | DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n"); | |
541ae68f K |
995 | break; |
996 | case PCI_MODE_PCIX_M1_133: | |
997 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n"); | |
541ae68f K |
998 | break; |
999 | case PCI_MODE_PCIX_M2_66: | |
1000 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n"); | |
541ae68f K |
1001 | break; |
1002 | case PCI_MODE_PCIX_M2_100: | |
1003 | DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n"); | |
541ae68f K |
1004 | break; |
1005 | case PCI_MODE_PCIX_M2_133: | |
1006 | DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n"); | |
541ae68f K |
1007 | break; |
1008 | default: | |
1009 | return -1; /* Unsupported bus speed */ | |
1010 | } | |
1011 | ||
1012 | return mode; | |
1013 | } | |
1014 | ||
20346722 K |
1015 | /** |
1016 | * init_nic - Initialization of hardware | |
1da177e4 | 1017 | * @nic: device peivate variable |
20346722 K |
1018 | * Description: The function sequentially configures every block |
1019 | * of the H/W from their reset values. | |
1020 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
1021 | * '-1' on failure (endian settings incorrect). |
1022 | */ | |
1023 | ||
1024 | static int init_nic(struct s2io_nic *nic) | |
1025 | { | |
1ee6dd77 | 1026 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1027 | struct net_device *dev = nic->dev; |
1028 | register u64 val64 = 0; | |
1029 | void __iomem *add; | |
1030 | u32 time; | |
1031 | int i, j; | |
1ee6dd77 | 1032 | struct mac_info *mac_control; |
1da177e4 | 1033 | struct config_param *config; |
c92ca04b | 1034 | int dtx_cnt = 0; |
1da177e4 | 1035 | unsigned long long mem_share; |
20346722 | 1036 | int mem_size; |
1da177e4 LT |
1037 | |
1038 | mac_control = &nic->mac_control; | |
1039 | config = &nic->config; | |
1040 | ||
5e25b9dd | 1041 | /* to set the swapper controle on the card */ |
20346722 | 1042 | if(s2io_set_swapper(nic)) { |
1da177e4 LT |
1043 | DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); |
1044 | return -1; | |
1045 | } | |
1046 | ||
541ae68f K |
1047 | /* |
1048 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
1049 | */ | |
1050 | if (nic->device_type & XFRAME_II_DEVICE) { | |
1051 | val64 = 0xA500000000ULL; | |
1052 | writeq(val64, &bar0->sw_reset); | |
1053 | msleep(500); | |
1054 | val64 = readq(&bar0->sw_reset); | |
1055 | } | |
1056 | ||
1da177e4 LT |
1057 | /* Remove XGXS from reset state */ |
1058 | val64 = 0; | |
1059 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 1060 | msleep(500); |
20346722 | 1061 | val64 = readq(&bar0->sw_reset); |
1da177e4 LT |
1062 | |
1063 | /* Enable Receiving broadcasts */ | |
1064 | add = &bar0->mac_cfg; | |
1065 | val64 = readq(&bar0->mac_cfg); | |
1066 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
1067 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1068 | writel((u32) val64, add); | |
1069 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1070 | writel((u32) (val64 >> 32), (add + 4)); | |
1071 | ||
1072 | /* Read registers in all blocks */ | |
1073 | val64 = readq(&bar0->mac_int_mask); | |
1074 | val64 = readq(&bar0->mc_int_mask); | |
1075 | val64 = readq(&bar0->xgxs_int_mask); | |
1076 | ||
1077 | /* Set MTU */ | |
1078 | val64 = dev->mtu; | |
1079 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
1080 | ||
541ae68f K |
1081 | if (nic->device_type & XFRAME_II_DEVICE) { |
1082 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 1083 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 1084 | &bar0->dtx_control, UF); |
541ae68f K |
1085 | if (dtx_cnt & 0x1) |
1086 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1087 | dtx_cnt++; |
1088 | } | |
541ae68f | 1089 | } else { |
c92ca04b AR |
1090 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1091 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1092 | &bar0->dtx_control, UF); | |
1093 | val64 = readq(&bar0->dtx_control); | |
1094 | dtx_cnt++; | |
1da177e4 LT |
1095 | } |
1096 | } | |
1097 | ||
1098 | /* Tx DMA Initialization */ | |
1099 | val64 = 0; | |
1100 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1101 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1102 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1103 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1104 | ||
1105 | ||
1106 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { | |
1107 | val64 |= | |
1108 | vBIT(config->tx_cfg[i].fifo_len - 1, ((i * 32) + 19), | |
1109 | 13) | vBIT(config->tx_cfg[i].fifo_priority, | |
1110 | ((i * 32) + 5), 3); | |
1111 | ||
1112 | if (i == (config->tx_fifo_num - 1)) { | |
1113 | if (i % 2 == 0) | |
1114 | i++; | |
1115 | } | |
1116 | ||
1117 | switch (i) { | |
1118 | case 1: | |
1119 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1120 | val64 = 0; | |
1121 | break; | |
1122 | case 3: | |
1123 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1124 | val64 = 0; | |
1125 | break; | |
1126 | case 5: | |
1127 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1128 | val64 = 0; | |
1129 | break; | |
1130 | case 7: | |
1131 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1132 | break; | |
1133 | } | |
1134 | } | |
1135 | ||
5e25b9dd K |
1136 | /* |
1137 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1138 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1139 | */ | |
541ae68f | 1140 | if ((nic->device_type == XFRAME_I_DEVICE) && |
44c10138 | 1141 | (nic->pdev->revision < 4)) |
5e25b9dd K |
1142 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1143 | ||
1da177e4 LT |
1144 | val64 = readq(&bar0->tx_fifo_partition_0); |
1145 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
1146 | &bar0->tx_fifo_partition_0, (unsigned long long) val64); | |
1147 | ||
20346722 K |
1148 | /* |
1149 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1150 | * integrity checking. |
1151 | */ | |
1152 | val64 = readq(&bar0->tx_pa_cfg); | |
1153 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1154 | TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR; | |
1155 | writeq(val64, &bar0->tx_pa_cfg); | |
1156 | ||
1157 | /* Rx DMA intialization. */ | |
1158 | val64 = 0; | |
1159 | for (i = 0; i < config->rx_ring_num; i++) { | |
1160 | val64 |= | |
1161 | vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)), | |
1162 | 3); | |
1163 | } | |
1164 | writeq(val64, &bar0->rx_queue_priority); | |
1165 | ||
20346722 K |
1166 | /* |
1167 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1168 | * configured Rings. |
1169 | */ | |
1170 | val64 = 0; | |
541ae68f K |
1171 | if (nic->device_type & XFRAME_II_DEVICE) |
1172 | mem_size = 32; | |
1173 | else | |
1174 | mem_size = 64; | |
1175 | ||
1da177e4 LT |
1176 | for (i = 0; i < config->rx_ring_num; i++) { |
1177 | switch (i) { | |
1178 | case 0: | |
20346722 K |
1179 | mem_share = (mem_size / config->rx_ring_num + |
1180 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1181 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1182 | continue; | |
1183 | case 1: | |
20346722 | 1184 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1185 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1186 | continue; | |
1187 | case 2: | |
20346722 | 1188 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1189 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1190 | continue; | |
1191 | case 3: | |
20346722 | 1192 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1193 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1194 | continue; | |
1195 | case 4: | |
20346722 | 1196 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1197 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1198 | continue; | |
1199 | case 5: | |
20346722 | 1200 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1201 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1202 | continue; | |
1203 | case 6: | |
20346722 | 1204 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1205 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1206 | continue; | |
1207 | case 7: | |
20346722 | 1208 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1209 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1210 | continue; | |
1211 | } | |
1212 | } | |
1213 | writeq(val64, &bar0->rx_queue_cfg); | |
1214 | ||
20346722 | 1215 | /* |
5e25b9dd K |
1216 | * Filling Tx round robin registers |
1217 | * as per the number of FIFOs | |
1da177e4 | 1218 | */ |
5e25b9dd K |
1219 | switch (config->tx_fifo_num) { |
1220 | case 1: | |
1221 | val64 = 0x0000000000000000ULL; | |
1222 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1223 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1224 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1225 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1226 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1227 | break; | |
1228 | case 2: | |
1229 | val64 = 0x0000010000010000ULL; | |
1230 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1231 | val64 = 0x0100000100000100ULL; | |
1232 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1233 | val64 = 0x0001000001000001ULL; | |
1234 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1235 | val64 = 0x0000010000010000ULL; | |
1236 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1237 | val64 = 0x0100000000000000ULL; | |
1238 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1239 | break; | |
1240 | case 3: | |
1241 | val64 = 0x0001000102000001ULL; | |
1242 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1243 | val64 = 0x0001020000010001ULL; | |
1244 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1245 | val64 = 0x0200000100010200ULL; | |
1246 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1247 | val64 = 0x0001000102000001ULL; | |
1248 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1249 | val64 = 0x0001020000000000ULL; | |
1250 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1251 | break; | |
1252 | case 4: | |
1253 | val64 = 0x0001020300010200ULL; | |
1254 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1255 | val64 = 0x0100000102030001ULL; | |
1256 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1257 | val64 = 0x0200010000010203ULL; | |
1258 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1259 | val64 = 0x0001020001000001ULL; | |
1260 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1261 | val64 = 0x0203000100000000ULL; | |
1262 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1263 | break; | |
1264 | case 5: | |
1265 | val64 = 0x0001000203000102ULL; | |
1266 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1267 | val64 = 0x0001020001030004ULL; | |
1268 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1269 | val64 = 0x0001000203000102ULL; | |
1270 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1271 | val64 = 0x0001020001030004ULL; | |
1272 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1273 | val64 = 0x0001000000000000ULL; | |
1274 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1275 | break; | |
1276 | case 6: | |
1277 | val64 = 0x0001020304000102ULL; | |
1278 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1279 | val64 = 0x0304050001020001ULL; | |
1280 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1281 | val64 = 0x0203000100000102ULL; | |
1282 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1283 | val64 = 0x0304000102030405ULL; | |
1284 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1285 | val64 = 0x0001000200000000ULL; | |
1286 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1287 | break; | |
1288 | case 7: | |
1289 | val64 = 0x0001020001020300ULL; | |
1290 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1291 | val64 = 0x0102030400010203ULL; | |
1292 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1293 | val64 = 0x0405060001020001ULL; | |
1294 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1295 | val64 = 0x0304050000010200ULL; | |
1296 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1297 | val64 = 0x0102030000000000ULL; | |
1298 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1299 | break; | |
1300 | case 8: | |
1301 | val64 = 0x0001020300040105ULL; | |
1302 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1303 | val64 = 0x0200030106000204ULL; | |
1304 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1305 | val64 = 0x0103000502010007ULL; | |
1306 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1307 | val64 = 0x0304010002060500ULL; | |
1308 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1309 | val64 = 0x0103020400000000ULL; | |
1310 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1311 | break; | |
1312 | } | |
1313 | ||
b41477f3 | 1314 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1315 | val64 = readq(&bar0->tx_fifo_partition_0); |
1316 | val64 |= (TX_FIFO_PARTITION_EN); | |
1317 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1318 | ||
5e25b9dd K |
1319 | /* Filling the Rx round robin registers as per the |
1320 | * number of Rings and steering based on QoS. | |
1321 | */ | |
1322 | switch (config->rx_ring_num) { | |
1323 | case 1: | |
1324 | val64 = 0x8080808080808080ULL; | |
1325 | writeq(val64, &bar0->rts_qos_steering); | |
1326 | break; | |
1327 | case 2: | |
1328 | val64 = 0x0000010000010000ULL; | |
1329 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1330 | val64 = 0x0100000100000100ULL; | |
1331 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1332 | val64 = 0x0001000001000001ULL; | |
1333 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1334 | val64 = 0x0000010000010000ULL; | |
1335 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1336 | val64 = 0x0100000000000000ULL; | |
1337 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1338 | ||
1339 | val64 = 0x8080808040404040ULL; | |
1340 | writeq(val64, &bar0->rts_qos_steering); | |
1341 | break; | |
1342 | case 3: | |
1343 | val64 = 0x0001000102000001ULL; | |
1344 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1345 | val64 = 0x0001020000010001ULL; | |
1346 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1347 | val64 = 0x0200000100010200ULL; | |
1348 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1349 | val64 = 0x0001000102000001ULL; | |
1350 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1351 | val64 = 0x0001020000000000ULL; | |
1352 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1353 | ||
1354 | val64 = 0x8080804040402020ULL; | |
1355 | writeq(val64, &bar0->rts_qos_steering); | |
1356 | break; | |
1357 | case 4: | |
1358 | val64 = 0x0001020300010200ULL; | |
1359 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1360 | val64 = 0x0100000102030001ULL; | |
1361 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1362 | val64 = 0x0200010000010203ULL; | |
1363 | writeq(val64, &bar0->rx_w_round_robin_2); | |
6aa20a22 | 1364 | val64 = 0x0001020001000001ULL; |
5e25b9dd K |
1365 | writeq(val64, &bar0->rx_w_round_robin_3); |
1366 | val64 = 0x0203000100000000ULL; | |
1367 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1368 | ||
1369 | val64 = 0x8080404020201010ULL; | |
1370 | writeq(val64, &bar0->rts_qos_steering); | |
1371 | break; | |
1372 | case 5: | |
1373 | val64 = 0x0001000203000102ULL; | |
1374 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1375 | val64 = 0x0001020001030004ULL; | |
1376 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1377 | val64 = 0x0001000203000102ULL; | |
1378 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1379 | val64 = 0x0001020001030004ULL; | |
1380 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1381 | val64 = 0x0001000000000000ULL; | |
1382 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1383 | ||
1384 | val64 = 0x8080404020201008ULL; | |
1385 | writeq(val64, &bar0->rts_qos_steering); | |
1386 | break; | |
1387 | case 6: | |
1388 | val64 = 0x0001020304000102ULL; | |
1389 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1390 | val64 = 0x0304050001020001ULL; | |
1391 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1392 | val64 = 0x0203000100000102ULL; | |
1393 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1394 | val64 = 0x0304000102030405ULL; | |
1395 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1396 | val64 = 0x0001000200000000ULL; | |
1397 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1398 | ||
1399 | val64 = 0x8080404020100804ULL; | |
1400 | writeq(val64, &bar0->rts_qos_steering); | |
1401 | break; | |
1402 | case 7: | |
1403 | val64 = 0x0001020001020300ULL; | |
1404 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1405 | val64 = 0x0102030400010203ULL; | |
1406 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1407 | val64 = 0x0405060001020001ULL; | |
1408 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1409 | val64 = 0x0304050000010200ULL; | |
1410 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1411 | val64 = 0x0102030000000000ULL; | |
1412 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1413 | ||
1414 | val64 = 0x8080402010080402ULL; | |
1415 | writeq(val64, &bar0->rts_qos_steering); | |
1416 | break; | |
1417 | case 8: | |
1418 | val64 = 0x0001020300040105ULL; | |
1419 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1420 | val64 = 0x0200030106000204ULL; | |
1421 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1422 | val64 = 0x0103000502010007ULL; | |
1423 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1424 | val64 = 0x0304010002060500ULL; | |
1425 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1426 | val64 = 0x0103020400000000ULL; | |
1427 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1428 | ||
1429 | val64 = 0x8040201008040201ULL; | |
1430 | writeq(val64, &bar0->rts_qos_steering); | |
1431 | break; | |
1432 | } | |
1da177e4 LT |
1433 | |
1434 | /* UDP Fix */ | |
1435 | val64 = 0; | |
20346722 | 1436 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1437 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1438 | ||
5e25b9dd K |
1439 | /* Set the default rts frame length for the rings configured */ |
1440 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1441 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1442 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1443 | ||
1444 | /* Set the frame length for the configured rings | |
1445 | * desired by the user | |
1446 | */ | |
1447 | for (i = 0; i < config->rx_ring_num; i++) { | |
1448 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1449 | * specified frame length steering. | |
1450 | * If the user provides the frame length then program | |
1451 | * the rts_frm_len register for those values or else | |
1452 | * leave it as it is. | |
1453 | */ | |
1454 | if (rts_frm_len[i] != 0) { | |
1455 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
1456 | &bar0->rts_frm_len_n[i]); | |
1457 | } | |
1458 | } | |
926930b2 | 1459 | |
9fc93a41 SS |
1460 | /* Disable differentiated services steering logic */ |
1461 | for (i = 0; i < 64; i++) { | |
1462 | if (rts_ds_steer(nic, i, 0) == FAILURE) { | |
1463 | DBG_PRINT(ERR_DBG, "%s: failed rts ds steering", | |
1464 | dev->name); | |
1465 | DBG_PRINT(ERR_DBG, "set on codepoint %d\n", i); | |
1466 | return FAILURE; | |
1467 | } | |
1468 | } | |
1469 | ||
20346722 | 1470 | /* Program statistics memory */ |
1da177e4 | 1471 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1472 | |
541ae68f K |
1473 | if (nic->device_type == XFRAME_II_DEVICE) { |
1474 | val64 = STAT_BC(0x320); | |
1475 | writeq(val64, &bar0->stat_byte_cnt); | |
1476 | } | |
1477 | ||
20346722 | 1478 | /* |
1da177e4 LT |
1479 | * Initializing the sampling rate for the device to calculate the |
1480 | * bandwidth utilization. | |
1481 | */ | |
1482 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
1483 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); | |
1484 | writeq(val64, &bar0->mac_link_util); | |
1485 | ||
1486 | ||
20346722 K |
1487 | /* |
1488 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1489 | * Scheme. |
1490 | */ | |
20346722 K |
1491 | /* |
1492 | * TTI Initialization. Default Tx timer gets us about | |
1da177e4 LT |
1493 | * 250 interrupts per sec. Continuous interrupts are enabled |
1494 | * by default. | |
1495 | */ | |
541ae68f K |
1496 | if (nic->device_type == XFRAME_II_DEVICE) { |
1497 | int count = (nic->config.bus_speed * 125)/2; | |
1498 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1499 | } else { | |
1500 | ||
1501 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1502 | } | |
1503 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
1da177e4 | 1504 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
5e25b9dd | 1505 | TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN; |
541ae68f K |
1506 | if (use_continuous_tx_intrs) |
1507 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
1da177e4 LT |
1508 | writeq(val64, &bar0->tti_data1_mem); |
1509 | ||
1510 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1511 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
19a60522 | 1512 | TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80); |
1da177e4 LT |
1513 | writeq(val64, &bar0->tti_data2_mem); |
1514 | ||
1515 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1516 | writeq(val64, &bar0->tti_command_mem); | |
1517 | ||
20346722 | 1518 | /* |
1da177e4 LT |
1519 | * Once the operation completes, the Strobe bit of the command |
1520 | * register will be reset. We poll for this particular condition | |
1521 | * We wait for a maximum of 500ms for the operation to complete, | |
1522 | * if it's not complete by then we return error. | |
1523 | */ | |
1524 | time = 0; | |
1525 | while (TRUE) { | |
1526 | val64 = readq(&bar0->tti_command_mem); | |
1527 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1528 | break; | |
1529 | } | |
1530 | if (time > 10) { | |
1531 | DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", | |
1532 | dev->name); | |
1533 | return -1; | |
1534 | } | |
1535 | msleep(50); | |
1536 | time++; | |
1537 | } | |
1538 | ||
b6e3f982 K |
1539 | if (nic->config.bimodal) { |
1540 | int k = 0; | |
1541 | for (k = 0; k < config->rx_ring_num; k++) { | |
1542 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1543 | val64 |= TTI_CMD_MEM_OFFSET(0x38+k); | |
1544 | writeq(val64, &bar0->tti_command_mem); | |
541ae68f | 1545 | |
541ae68f | 1546 | /* |
b6e3f982 K |
1547 | * Once the operation completes, the Strobe bit of the command |
1548 | * register will be reset. We poll for this particular condition | |
1549 | * We wait for a maximum of 500ms for the operation to complete, | |
1550 | * if it's not complete by then we return error. | |
1551 | */ | |
1552 | time = 0; | |
1553 | while (TRUE) { | |
1554 | val64 = readq(&bar0->tti_command_mem); | |
1555 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1556 | break; | |
1557 | } | |
1558 | if (time > 10) { | |
1559 | DBG_PRINT(ERR_DBG, | |
1560 | "%s: TTI init Failed\n", | |
1561 | dev->name); | |
1562 | return -1; | |
1563 | } | |
1564 | time++; | |
1565 | msleep(50); | |
1566 | } | |
1567 | } | |
541ae68f | 1568 | } else { |
1da177e4 | 1569 | |
b6e3f982 K |
1570 | /* RTI Initialization */ |
1571 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1572 | /* | |
1573 | * Programmed to generate Apprx 500 Intrs per | |
1574 | * second | |
1575 | */ | |
1576 | int count = (nic->config.bus_speed * 125)/4; | |
1577 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1578 | } else { | |
1579 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1580 | } | |
1581 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
1582 | RTI_DATA1_MEM_RX_URNG_B(0x10) | | |
1583 | RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
1da177e4 | 1584 | |
b6e3f982 | 1585 | writeq(val64, &bar0->rti_data1_mem); |
1da177e4 | 1586 | |
b6e3f982 | 1587 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | |
cc6e7c44 RA |
1588 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; |
1589 | if (nic->intr_type == MSI_X) | |
1590 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \ | |
1591 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
1592 | else | |
1593 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \ | |
1594 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
b6e3f982 | 1595 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1596 | |
b6e3f982 K |
1597 | for (i = 0; i < config->rx_ring_num; i++) { |
1598 | val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD | |
1599 | | RTI_CMD_MEM_OFFSET(i); | |
1600 | writeq(val64, &bar0->rti_command_mem); | |
1601 | ||
1602 | /* | |
1603 | * Once the operation completes, the Strobe bit of the | |
1604 | * command register will be reset. We poll for this | |
1605 | * particular condition. We wait for a maximum of 500ms | |
1606 | * for the operation to complete, if it's not complete | |
1607 | * by then we return error. | |
1608 | */ | |
1609 | time = 0; | |
1610 | while (TRUE) { | |
1611 | val64 = readq(&bar0->rti_command_mem); | |
1612 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1613 | break; | |
1614 | } | |
1615 | if (time > 10) { | |
1616 | DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", | |
1617 | dev->name); | |
1618 | return -1; | |
1619 | } | |
1620 | time++; | |
1621 | msleep(50); | |
1622 | } | |
1da177e4 | 1623 | } |
1da177e4 LT |
1624 | } |
1625 | ||
20346722 K |
1626 | /* |
1627 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1628 | * the 8 Queues on Rx side. |
1629 | */ | |
1630 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1631 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1632 | ||
1633 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1634 | add = &bar0->mac_cfg; |
1da177e4 LT |
1635 | val64 = readq(&bar0->mac_cfg); |
1636 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1637 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1638 | writel((u32) (val64), add); | |
1639 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1640 | writel((u32) (val64 >> 32), (add + 4)); | |
1641 | val64 = readq(&bar0->mac_cfg); | |
1642 | ||
7d3d0439 RA |
1643 | /* Enable FCS stripping by adapter */ |
1644 | add = &bar0->mac_cfg; | |
1645 | val64 = readq(&bar0->mac_cfg); | |
1646 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1647 | if (nic->device_type == XFRAME_II_DEVICE) | |
1648 | writeq(val64, &bar0->mac_cfg); | |
1649 | else { | |
1650 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1651 | writel((u32) (val64), add); | |
1652 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1653 | writel((u32) (val64 >> 32), (add + 4)); | |
1654 | } | |
1655 | ||
20346722 K |
1656 | /* |
1657 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1658 | * generated by xena. |
1659 | */ | |
1660 | val64 = readq(&bar0->rmac_pause_cfg); | |
1661 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1662 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1663 | writeq(val64, &bar0->rmac_pause_cfg); | |
1664 | ||
20346722 | 1665 | /* |
1da177e4 LT |
1666 | * Set the Threshold Limit for Generating the pause frame |
1667 | * If the amount of data in any Queue exceeds ratio of | |
1668 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1669 | * pause frame is generated | |
1670 | */ | |
1671 | val64 = 0; | |
1672 | for (i = 0; i < 4; i++) { | |
1673 | val64 |= | |
1674 | (((u64) 0xFF00 | nic->mac_control. | |
1675 | mc_pause_threshold_q0q3) | |
1676 | << (i * 2 * 8)); | |
1677 | } | |
1678 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1679 | ||
1680 | val64 = 0; | |
1681 | for (i = 0; i < 4; i++) { | |
1682 | val64 |= | |
1683 | (((u64) 0xFF00 | nic->mac_control. | |
1684 | mc_pause_threshold_q4q7) | |
1685 | << (i * 2 * 8)); | |
1686 | } | |
1687 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1688 | ||
20346722 K |
1689 | /* |
1690 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1691 | * exceeded the limit pointed by shared_splits |
1692 | */ | |
1693 | val64 = readq(&bar0->pic_control); | |
1694 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1695 | writeq(val64, &bar0->pic_control); | |
1696 | ||
863c11a9 AR |
1697 | if (nic->config.bus_speed == 266) { |
1698 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1699 | writeq(0x0, &bar0->read_retry_delay); | |
1700 | writeq(0x0, &bar0->write_retry_delay); | |
1701 | } | |
1702 | ||
541ae68f K |
1703 | /* |
1704 | * Programming the Herc to split every write transaction | |
1705 | * that does not start on an ADB to reduce disconnects. | |
1706 | */ | |
1707 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1708 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1709 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1710 | writeq(val64, &bar0->misc_control); |
1711 | val64 = readq(&bar0->pic_control2); | |
1712 | val64 &= ~(BIT(13)|BIT(14)|BIT(15)); | |
1713 | writeq(val64, &bar0->pic_control2); | |
541ae68f | 1714 | } |
c92ca04b AR |
1715 | if (strstr(nic->product_name, "CX4")) { |
1716 | val64 = TMAC_AVG_IPG(0x17); | |
1717 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d K |
1718 | } |
1719 | ||
1da177e4 LT |
1720 | return SUCCESS; |
1721 | } | |
a371a07d K |
1722 | #define LINK_UP_DOWN_INTERRUPT 1 |
1723 | #define MAC_RMAC_ERR_TIMER 2 | |
1724 | ||
1ee6dd77 | 1725 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d | 1726 | { |
cc6e7c44 RA |
1727 | if (nic->intr_type != INTA) |
1728 | return MAC_RMAC_ERR_TIMER; | |
a371a07d K |
1729 | if (nic->device_type == XFRAME_II_DEVICE) |
1730 | return LINK_UP_DOWN_INTERRUPT; | |
1731 | else | |
1732 | return MAC_RMAC_ERR_TIMER; | |
1733 | } | |
1da177e4 | 1734 | |
20346722 K |
1735 | /** |
1736 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1737 | * @nic: device private variable, |
1738 | * @mask: A mask indicating which Intr block must be modified and, | |
1739 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1740 | * Description: This function will either disable or enable the interrupts | |
20346722 K |
1741 | * depending on the flag argument. The mask argument can be used to |
1742 | * enable/disable any Intr block. | |
1da177e4 LT |
1743 | * Return Value: NONE. |
1744 | */ | |
1745 | ||
1746 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1747 | { | |
1ee6dd77 | 1748 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1749 | register u64 val64 = 0, temp64 = 0; |
1750 | ||
1751 | /* Top level interrupt classification */ | |
1752 | /* PIC Interrupts */ | |
1753 | if ((mask & (TX_PIC_INTR | RX_PIC_INTR))) { | |
1754 | /* Enable PIC Intrs in the general intr mask register */ | |
a113ae06 | 1755 | val64 = TXPIC_INT_M; |
1da177e4 LT |
1756 | if (flag == ENABLE_INTRS) { |
1757 | temp64 = readq(&bar0->general_int_mask); | |
1758 | temp64 &= ~((u64) val64); | |
1759 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1760 | /* |
a371a07d | 1761 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 1762 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 K |
1763 | * interrupts for now. |
1764 | * TODO | |
1da177e4 | 1765 | */ |
a371a07d K |
1766 | if (s2io_link_fault_indication(nic) == |
1767 | LINK_UP_DOWN_INTERRUPT ) { | |
1768 | temp64 = readq(&bar0->pic_int_mask); | |
1769 | temp64 &= ~((u64) PIC_INT_GPIO); | |
1770 | writeq(temp64, &bar0->pic_int_mask); | |
1771 | temp64 = readq(&bar0->gpio_int_mask); | |
1772 | temp64 &= ~((u64) GPIO_INT_MASK_LINK_UP); | |
1773 | writeq(temp64, &bar0->gpio_int_mask); | |
1774 | } else { | |
1775 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1776 | } | |
20346722 | 1777 | /* |
1da177e4 LT |
1778 | * No MSI Support is available presently, so TTI and |
1779 | * RTI interrupts are also disabled. | |
1780 | */ | |
1781 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1782 | /* |
1783 | * Disable PIC Intrs in the general | |
1784 | * intr mask register | |
1da177e4 LT |
1785 | */ |
1786 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1787 | temp64 = readq(&bar0->general_int_mask); | |
1788 | val64 |= temp64; | |
1789 | writeq(val64, &bar0->general_int_mask); | |
1790 | } | |
1791 | } | |
1792 | ||
1da177e4 LT |
1793 | /* MAC Interrupts */ |
1794 | /* Enabling/Disabling MAC interrupts */ | |
1795 | if (mask & (TX_MAC_INTR | RX_MAC_INTR)) { | |
1796 | val64 = TXMAC_INT_M | RXMAC_INT_M; | |
1797 | if (flag == ENABLE_INTRS) { | |
1798 | temp64 = readq(&bar0->general_int_mask); | |
1799 | temp64 &= ~((u64) val64); | |
1800 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1801 | /* |
1802 | * All MAC block error interrupts are disabled for now | |
1da177e4 LT |
1803 | * TODO |
1804 | */ | |
1da177e4 | 1805 | } else if (flag == DISABLE_INTRS) { |
20346722 K |
1806 | /* |
1807 | * Disable MAC Intrs in the general intr mask register | |
1da177e4 LT |
1808 | */ |
1809 | writeq(DISABLE_ALL_INTRS, &bar0->mac_int_mask); | |
1810 | writeq(DISABLE_ALL_INTRS, | |
1811 | &bar0->mac_rmac_err_mask); | |
1812 | ||
1813 | temp64 = readq(&bar0->general_int_mask); | |
1814 | val64 |= temp64; | |
1815 | writeq(val64, &bar0->general_int_mask); | |
1816 | } | |
1817 | } | |
1818 | ||
1da177e4 LT |
1819 | /* Tx traffic interrupts */ |
1820 | if (mask & TX_TRAFFIC_INTR) { | |
1821 | val64 = TXTRAFFIC_INT_M; | |
1822 | if (flag == ENABLE_INTRS) { | |
1823 | temp64 = readq(&bar0->general_int_mask); | |
1824 | temp64 &= ~((u64) val64); | |
1825 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1826 | /* |
1da177e4 | 1827 | * Enable all the Tx side interrupts |
20346722 | 1828 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
1829 | */ |
1830 | writeq(0x0, &bar0->tx_traffic_mask); | |
1831 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1832 | /* |
1833 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1834 | * register. |
1835 | */ | |
1836 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1837 | temp64 = readq(&bar0->general_int_mask); | |
1838 | val64 |= temp64; | |
1839 | writeq(val64, &bar0->general_int_mask); | |
1840 | } | |
1841 | } | |
1842 | ||
1843 | /* Rx traffic interrupts */ | |
1844 | if (mask & RX_TRAFFIC_INTR) { | |
1845 | val64 = RXTRAFFIC_INT_M; | |
1846 | if (flag == ENABLE_INTRS) { | |
1847 | temp64 = readq(&bar0->general_int_mask); | |
1848 | temp64 &= ~((u64) val64); | |
1849 | writeq(temp64, &bar0->general_int_mask); | |
1850 | /* writing 0 Enables all 8 RX interrupt levels */ | |
1851 | writeq(0x0, &bar0->rx_traffic_mask); | |
1852 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1853 | /* |
1854 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1855 | * register. |
1856 | */ | |
1857 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1858 | temp64 = readq(&bar0->general_int_mask); | |
1859 | val64 |= temp64; | |
1860 | writeq(val64, &bar0->general_int_mask); | |
1861 | } | |
1862 | } | |
1863 | } | |
1864 | ||
19a60522 SS |
1865 | /** |
1866 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
1867 | * Return: 1 If PCC is quiescence | |
1868 | * 0 If PCC is not quiescence | |
1869 | */ | |
1ee6dd77 | 1870 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 1871 | { |
19a60522 | 1872 | int ret = 0, herc; |
1ee6dd77 | 1873 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1874 | u64 val64 = readq(&bar0->adapter_status); |
1875 | ||
1876 | herc = (sp->device_type == XFRAME_II_DEVICE); | |
20346722 K |
1877 | |
1878 | if (flag == FALSE) { | |
44c10138 | 1879 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
19a60522 | 1880 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 1881 | ret = 1; |
19a60522 SS |
1882 | } else { |
1883 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 1884 | ret = 1; |
20346722 K |
1885 | } |
1886 | } else { | |
44c10138 | 1887 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
5e25b9dd | 1888 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 1889 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 1890 | ret = 1; |
5e25b9dd K |
1891 | } else { |
1892 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 1893 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 1894 | ret = 1; |
20346722 K |
1895 | } |
1896 | } | |
1897 | ||
1898 | return ret; | |
1899 | } | |
1900 | /** | |
1901 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 1902 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 1903 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
1904 | * differs and the calling function passes the input argument flag to |
1905 | * indicate this. | |
20346722 | 1906 | * Return: 1 If xena is quiescence |
1da177e4 LT |
1907 | * 0 If Xena is not quiescence |
1908 | */ | |
1909 | ||
1ee6dd77 | 1910 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 1911 | { |
19a60522 | 1912 | int mode; |
1ee6dd77 | 1913 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1914 | u64 val64 = readq(&bar0->adapter_status); |
1915 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 1916 | |
19a60522 SS |
1917 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
1918 | DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!"); | |
1919 | return 0; | |
1920 | } | |
1921 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
1922 | DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!"); | |
1923 | return 0; | |
1924 | } | |
1925 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
1926 | DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!"); | |
1927 | return 0; | |
1928 | } | |
1929 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
1930 | DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!"); | |
1931 | return 0; | |
1932 | } | |
1933 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
1934 | DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!"); | |
1935 | return 0; | |
1936 | } | |
1937 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
1938 | DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!"); | |
1939 | return 0; | |
1940 | } | |
1941 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
1942 | DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!"); | |
1943 | return 0; | |
1944 | } | |
1945 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
1946 | DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!"); | |
1947 | return 0; | |
1da177e4 LT |
1948 | } |
1949 | ||
19a60522 SS |
1950 | /* |
1951 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
1952 | * the the P_PLL_LOCK bit in the adapter_status register will | |
1953 | * not be asserted. | |
1954 | */ | |
1955 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
1956 | sp->device_type == XFRAME_II_DEVICE && mode != | |
1957 | PCI_MODE_PCI_33) { | |
1958 | DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!"); | |
1959 | return 0; | |
1960 | } | |
1961 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1962 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
1963 | DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!"); | |
1964 | return 0; | |
1965 | } | |
1966 | return 1; | |
1da177e4 LT |
1967 | } |
1968 | ||
1969 | /** | |
1970 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
1971 | * @sp: Pointer to device specifc structure | |
20346722 | 1972 | * Description : |
1da177e4 LT |
1973 | * New procedure to clear mac address reading problems on Alpha platforms |
1974 | * | |
1975 | */ | |
1976 | ||
1ee6dd77 | 1977 | static void fix_mac_address(struct s2io_nic * sp) |
1da177e4 | 1978 | { |
1ee6dd77 | 1979 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
1980 | u64 val64; |
1981 | int i = 0; | |
1982 | ||
1983 | while (fix_mac[i] != END_SIGN) { | |
1984 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 1985 | udelay(10); |
1da177e4 LT |
1986 | val64 = readq(&bar0->gpio_control); |
1987 | } | |
1988 | } | |
1989 | ||
1990 | /** | |
20346722 | 1991 | * start_nic - Turns the device on |
1da177e4 | 1992 | * @nic : device private variable. |
20346722 K |
1993 | * Description: |
1994 | * This function actually turns the device on. Before this function is | |
1995 | * called,all Registers are configured from their reset states | |
1996 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
1997 | * calling this function, the device interrupts are cleared and the NIC is |
1998 | * literally switched on by writing into the adapter control register. | |
20346722 | 1999 | * Return Value: |
1da177e4 LT |
2000 | * SUCCESS on success and -1 on failure. |
2001 | */ | |
2002 | ||
2003 | static int start_nic(struct s2io_nic *nic) | |
2004 | { | |
1ee6dd77 | 2005 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
2006 | struct net_device *dev = nic->dev; |
2007 | register u64 val64 = 0; | |
20346722 | 2008 | u16 subid, i; |
1ee6dd77 | 2009 | struct mac_info *mac_control; |
1da177e4 LT |
2010 | struct config_param *config; |
2011 | ||
2012 | mac_control = &nic->mac_control; | |
2013 | config = &nic->config; | |
2014 | ||
2015 | /* PRC Initialization and configuration */ | |
2016 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 2017 | writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2018 | &bar0->prc_rxd0_n[i]); |
2019 | ||
2020 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
b6e3f982 K |
2021 | if (nic->config.bimodal) |
2022 | val64 |= PRC_CTRL_BIMODAL_INTERRUPT; | |
da6971d8 AR |
2023 | if (nic->rxd_mode == RXD_MODE_1) |
2024 | val64 |= PRC_CTRL_RC_ENABLED; | |
2025 | else | |
2026 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2027 | if (nic->device_type == XFRAME_II_DEVICE) |
2028 | val64 |= PRC_CTRL_GROUP_READS; | |
2029 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2030 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2031 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2032 | } | |
2033 | ||
da6971d8 AR |
2034 | if (nic->rxd_mode == RXD_MODE_3B) { |
2035 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2036 | val64 = readq(&bar0->rx_pa_cfg); | |
2037 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2038 | writeq(val64, &bar0->rx_pa_cfg); | |
2039 | } | |
1da177e4 | 2040 | |
926930b2 SS |
2041 | if (vlan_tag_strip == 0) { |
2042 | val64 = readq(&bar0->rx_pa_cfg); | |
2043 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
2044 | writeq(val64, &bar0->rx_pa_cfg); | |
2045 | vlan_strip_flag = 0; | |
2046 | } | |
2047 | ||
20346722 | 2048 | /* |
1da177e4 LT |
2049 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2050 | * for around 100ms, which is approximately the time required | |
2051 | * for the device to be ready for operation. | |
2052 | */ | |
2053 | val64 = readq(&bar0->mc_rldram_mrs); | |
2054 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2055 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2056 | val64 = readq(&bar0->mc_rldram_mrs); | |
2057 | ||
20346722 | 2058 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2059 | |
2060 | /* Enabling ECC Protection. */ | |
2061 | val64 = readq(&bar0->adapter_control); | |
2062 | val64 &= ~ADAPTER_ECC_EN; | |
2063 | writeq(val64, &bar0->adapter_control); | |
2064 | ||
20346722 K |
2065 | /* |
2066 | * Clearing any possible Link state change interrupts that | |
1da177e4 LT |
2067 | * could have popped up just before Enabling the card. |
2068 | */ | |
2069 | val64 = readq(&bar0->mac_rmac_err_reg); | |
2070 | if (val64) | |
2071 | writeq(val64, &bar0->mac_rmac_err_reg); | |
2072 | ||
20346722 K |
2073 | /* |
2074 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2075 | * it. |
2076 | */ | |
2077 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 2078 | if (!verify_xena_quiescence(nic)) { |
1da177e4 LT |
2079 | DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name); |
2080 | DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n", | |
2081 | (unsigned long long) val64); | |
2082 | return FAILURE; | |
2083 | } | |
2084 | ||
20346722 | 2085 | /* |
1da177e4 | 2086 | * With some switches, link might be already up at this point. |
20346722 K |
2087 | * Because of this weird behavior, when we enable laser, |
2088 | * we may not get link. We need to handle this. We cannot | |
2089 | * figure out which switch is misbehaving. So we are forced to | |
2090 | * make a global change. | |
1da177e4 LT |
2091 | */ |
2092 | ||
2093 | /* Enabling Laser. */ | |
2094 | val64 = readq(&bar0->adapter_control); | |
2095 | val64 |= ADAPTER_EOI_TX_ON; | |
2096 | writeq(val64, &bar0->adapter_control); | |
2097 | ||
c92ca04b AR |
2098 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2099 | /* | |
2100 | * Dont see link state interrupts initally on some switches, | |
2101 | * so directly scheduling the link state task here. | |
2102 | */ | |
2103 | schedule_work(&nic->set_link_task); | |
2104 | } | |
1da177e4 LT |
2105 | /* SXE-002: Initialize link and activity LED */ |
2106 | subid = nic->pdev->subsystem_device; | |
541ae68f K |
2107 | if (((subid & 0xFF) >= 0x07) && |
2108 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2109 | val64 = readq(&bar0->gpio_control); |
2110 | val64 |= 0x0000800000000000ULL; | |
2111 | writeq(val64, &bar0->gpio_control); | |
2112 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2113 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2114 | } |
2115 | ||
1da177e4 LT |
2116 | return SUCCESS; |
2117 | } | |
fed5eccd AR |
2118 | /** |
2119 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2120 | */ | |
1ee6dd77 RB |
2121 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, struct \ |
2122 | TxD *txdlp, int get_off) | |
fed5eccd | 2123 | { |
1ee6dd77 | 2124 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2125 | struct sk_buff *skb; |
1ee6dd77 | 2126 | struct TxD *txds; |
fed5eccd AR |
2127 | u16 j, frg_cnt; |
2128 | ||
2129 | txds = txdlp; | |
26b7625c | 2130 | if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) { |
fed5eccd AR |
2131 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2132 | txds->Buffer_Pointer, sizeof(u64), | |
2133 | PCI_DMA_TODEVICE); | |
2134 | txds++; | |
2135 | } | |
2136 | ||
2137 | skb = (struct sk_buff *) ((unsigned long) | |
2138 | txds->Host_Control); | |
2139 | if (!skb) { | |
1ee6dd77 | 2140 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2141 | return NULL; |
2142 | } | |
2143 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2144 | txds->Buffer_Pointer, | |
2145 | skb->len - skb->data_len, | |
2146 | PCI_DMA_TODEVICE); | |
2147 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
2148 | if (frg_cnt) { | |
2149 | txds++; | |
2150 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2151 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2152 | if (!txds->Buffer_Pointer) | |
2153 | break; | |
6aa20a22 | 2154 | pci_unmap_page(nic->pdev, (dma_addr_t) |
fed5eccd AR |
2155 | txds->Buffer_Pointer, |
2156 | frag->size, PCI_DMA_TODEVICE); | |
2157 | } | |
2158 | } | |
1ee6dd77 | 2159 | memset(txdlp,0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2160 | return(skb); |
2161 | } | |
1da177e4 | 2162 | |
20346722 K |
2163 | /** |
2164 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2165 | * @nic : device private variable. |
20346722 | 2166 | * Description: |
1da177e4 | 2167 | * Free all queued Tx buffers. |
20346722 | 2168 | * Return Value: void |
1da177e4 LT |
2169 | */ |
2170 | ||
2171 | static void free_tx_buffers(struct s2io_nic *nic) | |
2172 | { | |
2173 | struct net_device *dev = nic->dev; | |
2174 | struct sk_buff *skb; | |
1ee6dd77 | 2175 | struct TxD *txdp; |
1da177e4 | 2176 | int i, j; |
1ee6dd77 | 2177 | struct mac_info *mac_control; |
1da177e4 | 2178 | struct config_param *config; |
fed5eccd | 2179 | int cnt = 0; |
1da177e4 LT |
2180 | |
2181 | mac_control = &nic->mac_control; | |
2182 | config = &nic->config; | |
2183 | ||
2184 | for (i = 0; i < config->tx_fifo_num; i++) { | |
2185 | for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) { | |
491976b2 SH |
2186 | txdp = (struct TxD *) \ |
2187 | mac_control->fifos[i].list_info[j].list_virt_addr; | |
fed5eccd AR |
2188 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2189 | if (skb) { | |
491976b2 SH |
2190 | nic->mac_control.stats_info->sw_stat.mem_freed |
2191 | += skb->truesize; | |
fed5eccd AR |
2192 | dev_kfree_skb(skb); |
2193 | cnt++; | |
1da177e4 | 2194 | } |
1da177e4 LT |
2195 | } |
2196 | DBG_PRINT(INTR_DBG, | |
2197 | "%s:forcibly freeing %d skbs on FIFO%d\n", | |
2198 | dev->name, cnt, i); | |
20346722 K |
2199 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
2200 | mac_control->fifos[i].tx_curr_put_info.offset = 0; | |
1da177e4 LT |
2201 | } |
2202 | } | |
2203 | ||
20346722 K |
2204 | /** |
2205 | * stop_nic - To stop the nic | |
1da177e4 | 2206 | * @nic ; device private variable. |
20346722 K |
2207 | * Description: |
2208 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2209 | * function does. This function is called to stop the device. |
2210 | * Return Value: | |
2211 | * void. | |
2212 | */ | |
2213 | ||
2214 | static void stop_nic(struct s2io_nic *nic) | |
2215 | { | |
1ee6dd77 | 2216 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2217 | register u64 val64 = 0; |
5d3213cc | 2218 | u16 interruptible; |
1ee6dd77 | 2219 | struct mac_info *mac_control; |
1da177e4 LT |
2220 | struct config_param *config; |
2221 | ||
2222 | mac_control = &nic->mac_control; | |
2223 | config = &nic->config; | |
2224 | ||
2225 | /* Disable all interrupts */ | |
e960fc5c | 2226 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
a371a07d K |
2227 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; |
2228 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
1da177e4 LT |
2229 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2230 | ||
5d3213cc AR |
2231 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2232 | val64 = readq(&bar0->adapter_control); | |
2233 | val64 &= ~(ADAPTER_CNTL_EN); | |
2234 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2235 | } |
2236 | ||
20346722 K |
2237 | /** |
2238 | * fill_rx_buffers - Allocates the Rx side skbs | |
1da177e4 | 2239 | * @nic: device private variable |
20346722 K |
2240 | * @ring_no: ring number |
2241 | * Description: | |
1da177e4 LT |
2242 | * The function allocates Rx side skbs and puts the physical |
2243 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2244 | * can DMA the received frame into these locations. | |
2245 | * The NIC supports 3 receive modes, viz | |
2246 | * 1. single buffer, | |
2247 | * 2. three buffer and | |
2248 | * 3. Five buffer modes. | |
20346722 K |
2249 | * Each mode defines how many fragments the received frame will be split |
2250 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2251 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2252 | * is split into 3 fragments. As of now only single buffer mode is | |
2253 | * supported. | |
2254 | * Return Value: | |
2255 | * SUCCESS on success or an appropriate -ve value on failure. | |
2256 | */ | |
2257 | ||
ac1f60db | 2258 | static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) |
1da177e4 LT |
2259 | { |
2260 | struct net_device *dev = nic->dev; | |
2261 | struct sk_buff *skb; | |
1ee6dd77 | 2262 | struct RxD_t *rxdp; |
1da177e4 | 2263 | int off, off1, size, block_no, block_no1; |
1da177e4 | 2264 | u32 alloc_tab = 0; |
20346722 | 2265 | u32 alloc_cnt; |
1ee6dd77 | 2266 | struct mac_info *mac_control; |
1da177e4 | 2267 | struct config_param *config; |
20346722 | 2268 | u64 tmp; |
1ee6dd77 | 2269 | struct buffAdd *ba; |
1da177e4 | 2270 | unsigned long flags; |
1ee6dd77 | 2271 | struct RxD_t *first_rxdp = NULL; |
363dc367 | 2272 | u64 Buffer0_ptr = 0, Buffer1_ptr = 0; |
6d517a27 VP |
2273 | struct RxD1 *rxdp1; |
2274 | struct RxD3 *rxdp3; | |
491abf25 | 2275 | struct swStat *stats = &nic->mac_control.stats_info->sw_stat; |
1da177e4 LT |
2276 | |
2277 | mac_control = &nic->mac_control; | |
2278 | config = &nic->config; | |
20346722 K |
2279 | alloc_cnt = mac_control->rings[ring_no].pkt_cnt - |
2280 | atomic_read(&nic->rx_bufs_left[ring_no]); | |
1da177e4 | 2281 | |
5d3213cc | 2282 | block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index; |
863c11a9 | 2283 | off1 = mac_control->rings[ring_no].rx_curr_get_info.offset; |
1da177e4 | 2284 | while (alloc_tab < alloc_cnt) { |
20346722 | 2285 | block_no = mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2286 | block_index; |
20346722 | 2287 | off = mac_control->rings[ring_no].rx_curr_put_info.offset; |
1da177e4 | 2288 | |
da6971d8 AR |
2289 | rxdp = mac_control->rings[ring_no]. |
2290 | rx_blocks[block_no].rxds[off].virt_addr; | |
2291 | ||
2292 | if ((block_no == block_no1) && (off == off1) && | |
2293 | (rxdp->Host_Control)) { | |
2294 | DBG_PRINT(INTR_DBG, "%s: Get and Put", | |
2295 | dev->name); | |
1da177e4 LT |
2296 | DBG_PRINT(INTR_DBG, " info equated\n"); |
2297 | goto end; | |
2298 | } | |
da6971d8 | 2299 | if (off && (off == rxd_count[nic->rxd_mode])) { |
20346722 | 2300 | mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2301 | block_index++; |
da6971d8 AR |
2302 | if (mac_control->rings[ring_no].rx_curr_put_info. |
2303 | block_index == mac_control->rings[ring_no]. | |
2304 | block_count) | |
2305 | mac_control->rings[ring_no].rx_curr_put_info. | |
2306 | block_index = 0; | |
2307 | block_no = mac_control->rings[ring_no]. | |
2308 | rx_curr_put_info.block_index; | |
2309 | if (off == rxd_count[nic->rxd_mode]) | |
2310 | off = 0; | |
20346722 | 2311 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 AR |
2312 | offset = off; |
2313 | rxdp = mac_control->rings[ring_no]. | |
2314 | rx_blocks[block_no].block_virt_addr; | |
1da177e4 LT |
2315 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
2316 | dev->name, rxdp); | |
2317 | } | |
db874e65 SS |
2318 | if(!napi) { |
2319 | spin_lock_irqsave(&nic->put_lock, flags); | |
2320 | mac_control->rings[ring_no].put_pos = | |
2321 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2322 | spin_unlock_irqrestore(&nic->put_lock, flags); | |
2323 | } else { | |
2324 | mac_control->rings[ring_no].put_pos = | |
2325 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2326 | } | |
da6971d8 | 2327 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
6d517a27 | 2328 | ((nic->rxd_mode == RXD_MODE_3B) && |
da6971d8 | 2329 | (rxdp->Control_2 & BIT(0)))) { |
20346722 | 2330 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 | 2331 | offset = off; |
1da177e4 LT |
2332 | goto end; |
2333 | } | |
da6971d8 AR |
2334 | /* calculate size of skb based on ring mode */ |
2335 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
2336 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
2337 | if (nic->rxd_mode == RXD_MODE_1) | |
2338 | size += NET_IP_ALIGN; | |
da6971d8 | 2339 | else |
6d517a27 | 2340 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; |
1da177e4 | 2341 | |
da6971d8 AR |
2342 | /* allocate skb */ |
2343 | skb = dev_alloc_skb(size); | |
2344 | if(!skb) { | |
0c61ed5f RV |
2345 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
2346 | DBG_PRINT(INFO_DBG, "memory to allocate SKBs\n"); | |
303bcb4b K |
2347 | if (first_rxdp) { |
2348 | wmb(); | |
2349 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2350 | } | |
c53d4945 SH |
2351 | nic->mac_control.stats_info->sw_stat. \ |
2352 | mem_alloc_fail_cnt++; | |
da6971d8 AR |
2353 | return -ENOMEM ; |
2354 | } | |
491976b2 SH |
2355 | nic->mac_control.stats_info->sw_stat.mem_allocated |
2356 | += skb->truesize; | |
da6971d8 AR |
2357 | if (nic->rxd_mode == RXD_MODE_1) { |
2358 | /* 1 buffer mode - normal operation mode */ | |
6d517a27 | 2359 | rxdp1 = (struct RxD1*)rxdp; |
1ee6dd77 | 2360 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2361 | skb_reserve(skb, NET_IP_ALIGN); |
6d517a27 | 2362 | rxdp1->Buffer0_ptr = pci_map_single |
863c11a9 AR |
2363 | (nic->pdev, skb->data, size - NET_IP_ALIGN, |
2364 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
2365 | if( (rxdp1->Buffer0_ptr == 0) || |
2366 | (rxdp1->Buffer0_ptr == | |
2367 | DMA_ERROR_CODE)) | |
2368 | goto pci_map_failed; | |
2369 | ||
491976b2 SH |
2370 | rxdp->Control_2 = |
2371 | SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); | |
da6971d8 | 2372 | |
6d517a27 | 2373 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 | 2374 | /* |
6d517a27 VP |
2375 | * 2 buffer mode - |
2376 | * 2 buffer mode provides 128 | |
da6971d8 | 2377 | * byte aligned receive buffers. |
da6971d8 AR |
2378 | */ |
2379 | ||
6d517a27 | 2380 | rxdp3 = (struct RxD3*)rxdp; |
491976b2 | 2381 | /* save buffer pointers to avoid frequent dma mapping */ |
6d517a27 VP |
2382 | Buffer0_ptr = rxdp3->Buffer0_ptr; |
2383 | Buffer1_ptr = rxdp3->Buffer1_ptr; | |
1ee6dd77 | 2384 | memset(rxdp, 0, sizeof(struct RxD3)); |
363dc367 | 2385 | /* restore the buffer pointers for dma sync*/ |
6d517a27 VP |
2386 | rxdp3->Buffer0_ptr = Buffer0_ptr; |
2387 | rxdp3->Buffer1_ptr = Buffer1_ptr; | |
363dc367 | 2388 | |
da6971d8 AR |
2389 | ba = &mac_control->rings[ring_no].ba[block_no][off]; |
2390 | skb_reserve(skb, BUF0_LEN); | |
2391 | tmp = (u64)(unsigned long) skb->data; | |
2392 | tmp += ALIGN_SIZE; | |
2393 | tmp &= ~ALIGN_SIZE; | |
2394 | skb->data = (void *) (unsigned long)tmp; | |
27a884dc | 2395 | skb_reset_tail_pointer(skb); |
da6971d8 | 2396 | |
6d517a27 VP |
2397 | if (!(rxdp3->Buffer0_ptr)) |
2398 | rxdp3->Buffer0_ptr = | |
75c30b13 | 2399 | pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, |
da6971d8 | 2400 | PCI_DMA_FROMDEVICE); |
75c30b13 AR |
2401 | else |
2402 | pci_dma_sync_single_for_device(nic->pdev, | |
6d517a27 | 2403 | (dma_addr_t) rxdp3->Buffer0_ptr, |
75c30b13 | 2404 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
491abf25 VP |
2405 | if( (rxdp3->Buffer0_ptr == 0) || |
2406 | (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) | |
2407 | goto pci_map_failed; | |
2408 | ||
da6971d8 AR |
2409 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
2410 | if (nic->rxd_mode == RXD_MODE_3B) { | |
2411 | /* Two buffer mode */ | |
2412 | ||
2413 | /* | |
6aa20a22 | 2414 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2415 | * L4 payload |
2416 | */ | |
6d517a27 | 2417 | rxdp3->Buffer2_ptr = pci_map_single |
da6971d8 AR |
2418 | (nic->pdev, skb->data, dev->mtu + 4, |
2419 | PCI_DMA_FROMDEVICE); | |
2420 | ||
491abf25 VP |
2421 | if( (rxdp3->Buffer2_ptr == 0) || |
2422 | (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) | |
2423 | goto pci_map_failed; | |
2424 | ||
2425 | rxdp3->Buffer1_ptr = | |
6aa20a22 | 2426 | pci_map_single(nic->pdev, |
75c30b13 AR |
2427 | ba->ba_1, BUF1_LEN, |
2428 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
2429 | if( (rxdp3->Buffer1_ptr == 0) || |
2430 | (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { | |
2431 | pci_unmap_single | |
2432 | (nic->pdev, | |
3e847423 | 2433 | (dma_addr_t)rxdp3->Buffer2_ptr, |
491abf25 VP |
2434 | dev->mtu + 4, |
2435 | PCI_DMA_FROMDEVICE); | |
2436 | goto pci_map_failed; | |
75c30b13 | 2437 | } |
da6971d8 AR |
2438 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2439 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
2440 | (dev->mtu + 4); | |
da6971d8 AR |
2441 | } |
2442 | rxdp->Control_2 |= BIT(0); | |
1da177e4 | 2443 | } |
1da177e4 | 2444 | rxdp->Host_Control = (unsigned long) (skb); |
303bcb4b K |
2445 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2446 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2447 | off++; |
da6971d8 AR |
2448 | if (off == (rxd_count[nic->rxd_mode] + 1)) |
2449 | off = 0; | |
20346722 | 2450 | mac_control->rings[ring_no].rx_curr_put_info.offset = off; |
20346722 | 2451 | |
da6971d8 | 2452 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b K |
2453 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2454 | if (first_rxdp) { | |
2455 | wmb(); | |
2456 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2457 | } | |
2458 | first_rxdp = rxdp; | |
2459 | } | |
1da177e4 LT |
2460 | atomic_inc(&nic->rx_bufs_left[ring_no]); |
2461 | alloc_tab++; | |
2462 | } | |
2463 | ||
2464 | end: | |
303bcb4b K |
2465 | /* Transfer ownership of first descriptor to adapter just before |
2466 | * exiting. Before that, use memory barrier so that ownership | |
2467 | * and other fields are seen by adapter correctly. | |
2468 | */ | |
2469 | if (first_rxdp) { | |
2470 | wmb(); | |
2471 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2472 | } | |
2473 | ||
1da177e4 | 2474 | return SUCCESS; |
491abf25 VP |
2475 | pci_map_failed: |
2476 | stats->pci_map_fail_cnt++; | |
2477 | stats->mem_freed += skb->truesize; | |
2478 | dev_kfree_skb_irq(skb); | |
2479 | return -ENOMEM; | |
1da177e4 LT |
2480 | } |
2481 | ||
da6971d8 AR |
2482 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2483 | { | |
2484 | struct net_device *dev = sp->dev; | |
2485 | int j; | |
2486 | struct sk_buff *skb; | |
1ee6dd77 RB |
2487 | struct RxD_t *rxdp; |
2488 | struct mac_info *mac_control; | |
2489 | struct buffAdd *ba; | |
6d517a27 VP |
2490 | struct RxD1 *rxdp1; |
2491 | struct RxD3 *rxdp3; | |
da6971d8 AR |
2492 | |
2493 | mac_control = &sp->mac_control; | |
2494 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { | |
2495 | rxdp = mac_control->rings[ring_no]. | |
2496 | rx_blocks[blk].rxds[j].virt_addr; | |
2497 | skb = (struct sk_buff *) | |
2498 | ((unsigned long) rxdp->Host_Control); | |
2499 | if (!skb) { | |
2500 | continue; | |
2501 | } | |
2502 | if (sp->rxd_mode == RXD_MODE_1) { | |
6d517a27 | 2503 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2504 | pci_unmap_single(sp->pdev, (dma_addr_t) |
6d517a27 VP |
2505 | rxdp1->Buffer0_ptr, |
2506 | dev->mtu + | |
2507 | HEADER_ETHERNET_II_802_3_SIZE | |
2508 | + HEADER_802_2_SIZE + | |
2509 | HEADER_SNAP_SIZE, | |
2510 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2511 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2512 | } else if(sp->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2513 | rxdp3 = (struct RxD3*)rxdp; |
da6971d8 AR |
2514 | ba = &mac_control->rings[ring_no]. |
2515 | ba[blk][j]; | |
2516 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2517 | rxdp3->Buffer0_ptr, |
2518 | BUF0_LEN, | |
da6971d8 AR |
2519 | PCI_DMA_FROMDEVICE); |
2520 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2521 | rxdp3->Buffer1_ptr, |
2522 | BUF1_LEN, | |
da6971d8 AR |
2523 | PCI_DMA_FROMDEVICE); |
2524 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2525 | rxdp3->Buffer2_ptr, |
2526 | dev->mtu + 4, | |
da6971d8 | 2527 | PCI_DMA_FROMDEVICE); |
1ee6dd77 | 2528 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 | 2529 | } |
491976b2 | 2530 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
da6971d8 AR |
2531 | dev_kfree_skb(skb); |
2532 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
2533 | } | |
2534 | } | |
2535 | ||
1da177e4 | 2536 | /** |
20346722 | 2537 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2538 | * @sp: device private variable. |
20346722 | 2539 | * Description: |
1da177e4 LT |
2540 | * This function will free all Rx buffers allocated by host. |
2541 | * Return Value: | |
2542 | * NONE. | |
2543 | */ | |
2544 | ||
2545 | static void free_rx_buffers(struct s2io_nic *sp) | |
2546 | { | |
2547 | struct net_device *dev = sp->dev; | |
da6971d8 | 2548 | int i, blk = 0, buf_cnt = 0; |
1ee6dd77 | 2549 | struct mac_info *mac_control; |
1da177e4 | 2550 | struct config_param *config; |
1da177e4 LT |
2551 | |
2552 | mac_control = &sp->mac_control; | |
2553 | config = &sp->config; | |
2554 | ||
2555 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
2556 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
2557 | free_rxd_blk(sp,i,blk); | |
1da177e4 | 2558 | |
20346722 K |
2559 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
2560 | mac_control->rings[i].rx_curr_get_info.block_index = 0; | |
2561 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
2562 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
1da177e4 LT |
2563 | atomic_set(&sp->rx_bufs_left[i], 0); |
2564 | DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n", | |
2565 | dev->name, buf_cnt, i); | |
2566 | } | |
2567 | } | |
2568 | ||
2569 | /** | |
2570 | * s2io_poll - Rx interrupt handler for NAPI support | |
bea3348e | 2571 | * @napi : pointer to the napi structure. |
20346722 | 2572 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2573 | * during one pass through the 'Poll" function. |
2574 | * Description: | |
2575 | * Comes into picture only if NAPI support has been incorporated. It does | |
2576 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2577 | * also It will process only a given number of packets. | |
2578 | * Return value: | |
2579 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2580 | */ | |
2581 | ||
bea3348e | 2582 | static int s2io_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2583 | { |
bea3348e SH |
2584 | struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi); |
2585 | struct net_device *dev = nic->dev; | |
20346722 | 2586 | int pkt_cnt = 0, org_pkts_to_process; |
1ee6dd77 | 2587 | struct mac_info *mac_control; |
1da177e4 | 2588 | struct config_param *config; |
1ee6dd77 | 2589 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
20346722 | 2590 | int i; |
1da177e4 | 2591 | |
7ba013ac | 2592 | atomic_inc(&nic->isr_cnt); |
1da177e4 LT |
2593 | mac_control = &nic->mac_control; |
2594 | config = &nic->config; | |
2595 | ||
bea3348e | 2596 | nic->pkts_to_process = budget; |
20346722 | 2597 | org_pkts_to_process = nic->pkts_to_process; |
1da177e4 | 2598 | |
19a60522 SS |
2599 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
2600 | readl(&bar0->rx_traffic_int); | |
1da177e4 LT |
2601 | |
2602 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
2603 | rx_intr_handler(&mac_control->rings[i]); |
2604 | pkt_cnt = org_pkts_to_process - nic->pkts_to_process; | |
2605 | if (!nic->pkts_to_process) { | |
2606 | /* Quota for the current iteration has been met */ | |
2607 | goto no_rx; | |
1da177e4 | 2608 | } |
1da177e4 | 2609 | } |
1da177e4 | 2610 | |
bea3348e | 2611 | netif_rx_complete(dev, napi); |
1da177e4 LT |
2612 | |
2613 | for (i = 0; i < config->rx_ring_num; i++) { | |
2614 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2615 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2616 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2617 | break; |
2618 | } | |
2619 | } | |
2620 | /* Re enable the Rx interrupts. */ | |
c92ca04b | 2621 | writeq(0x0, &bar0->rx_traffic_mask); |
19a60522 | 2622 | readl(&bar0->rx_traffic_mask); |
7ba013ac | 2623 | atomic_dec(&nic->isr_cnt); |
bea3348e | 2624 | return pkt_cnt; |
1da177e4 | 2625 | |
20346722 | 2626 | no_rx: |
1da177e4 LT |
2627 | for (i = 0; i < config->rx_ring_num; i++) { |
2628 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2629 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2630 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2631 | break; |
2632 | } | |
2633 | } | |
7ba013ac | 2634 | atomic_dec(&nic->isr_cnt); |
bea3348e | 2635 | return pkt_cnt; |
1da177e4 | 2636 | } |
20346722 | 2637 | |
b41477f3 | 2638 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2639 | /** |
b41477f3 | 2640 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2641 | * @dev : pointer to the device structure. |
2642 | * Description: | |
b41477f3 AR |
2643 | * This function will be called by upper layer to check for events on the |
2644 | * interface in situations where interrupts are disabled. It is used for | |
2645 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2646 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2647 | */ |
612eff0e BH |
2648 | static void s2io_netpoll(struct net_device *dev) |
2649 | { | |
1ee6dd77 RB |
2650 | struct s2io_nic *nic = dev->priv; |
2651 | struct mac_info *mac_control; | |
612eff0e | 2652 | struct config_param *config; |
1ee6dd77 | 2653 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2654 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e BH |
2655 | int i; |
2656 | ||
d796fdb7 LV |
2657 | if (pci_channel_offline(nic->pdev)) |
2658 | return; | |
2659 | ||
612eff0e BH |
2660 | disable_irq(dev->irq); |
2661 | ||
2662 | atomic_inc(&nic->isr_cnt); | |
2663 | mac_control = &nic->mac_control; | |
2664 | config = &nic->config; | |
2665 | ||
612eff0e | 2666 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2667 | writeq(val64, &bar0->tx_traffic_int); |
2668 | ||
6aa20a22 | 2669 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2670 | * run out of skbs and will fail and eventually netpoll application such |
2671 | * as netdump will fail. | |
2672 | */ | |
2673 | for (i = 0; i < config->tx_fifo_num; i++) | |
2674 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2675 | |
b41477f3 | 2676 | /* check for received packet and indicate up to network */ |
612eff0e BH |
2677 | for (i = 0; i < config->rx_ring_num; i++) |
2678 | rx_intr_handler(&mac_control->rings[i]); | |
2679 | ||
2680 | for (i = 0; i < config->rx_ring_num; i++) { | |
2681 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2682 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2683 | DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n"); | |
612eff0e BH |
2684 | break; |
2685 | } | |
2686 | } | |
2687 | atomic_dec(&nic->isr_cnt); | |
2688 | enable_irq(dev->irq); | |
2689 | return; | |
2690 | } | |
2691 | #endif | |
2692 | ||
20346722 | 2693 | /** |
1da177e4 LT |
2694 | * rx_intr_handler - Rx interrupt handler |
2695 | * @nic: device private variable. | |
20346722 K |
2696 | * Description: |
2697 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2698 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 K |
2699 | * called. It picks out the RxD at which place the last Rx processing had |
2700 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2701 | * the offset. |
2702 | * Return Value: | |
2703 | * NONE. | |
2704 | */ | |
1ee6dd77 | 2705 | static void rx_intr_handler(struct ring_info *ring_data) |
1da177e4 | 2706 | { |
1ee6dd77 | 2707 | struct s2io_nic *nic = ring_data->nic; |
1da177e4 | 2708 | struct net_device *dev = (struct net_device *) nic->dev; |
da6971d8 | 2709 | int get_block, put_block, put_offset; |
1ee6dd77 RB |
2710 | struct rx_curr_get_info get_info, put_info; |
2711 | struct RxD_t *rxdp; | |
1da177e4 | 2712 | struct sk_buff *skb; |
20346722 | 2713 | int pkt_cnt = 0; |
7d3d0439 | 2714 | int i; |
6d517a27 VP |
2715 | struct RxD1* rxdp1; |
2716 | struct RxD3* rxdp3; | |
7d3d0439 | 2717 | |
7ba013ac K |
2718 | spin_lock(&nic->rx_lock); |
2719 | if (atomic_read(&nic->card_state) == CARD_DOWN) { | |
776bd20f | 2720 | DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n", |
7ba013ac K |
2721 | __FUNCTION__, dev->name); |
2722 | spin_unlock(&nic->rx_lock); | |
776bd20f | 2723 | return; |
7ba013ac K |
2724 | } |
2725 | ||
20346722 K |
2726 | get_info = ring_data->rx_curr_get_info; |
2727 | get_block = get_info.block_index; | |
1ee6dd77 | 2728 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2729 | put_block = put_info.block_index; |
da6971d8 | 2730 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 SS |
2731 | if (!napi) { |
2732 | spin_lock(&nic->put_lock); | |
2733 | put_offset = ring_data->put_pos; | |
2734 | spin_unlock(&nic->put_lock); | |
2735 | } else | |
2736 | put_offset = ring_data->put_pos; | |
2737 | ||
da6971d8 | 2738 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2739 | /* |
2740 | * If your are next to put index then it's | |
2741 | * FIFO full condition | |
2742 | */ | |
da6971d8 AR |
2743 | if ((get_block == put_block) && |
2744 | (get_info.offset + 1) == put_info.offset) { | |
75c30b13 | 2745 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); |
da6971d8 AR |
2746 | break; |
2747 | } | |
20346722 K |
2748 | skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); |
2749 | if (skb == NULL) { | |
2750 | DBG_PRINT(ERR_DBG, "%s: The skb is ", | |
2751 | dev->name); | |
2752 | DBG_PRINT(ERR_DBG, "Null in Rx Intr\n"); | |
7ba013ac | 2753 | spin_unlock(&nic->rx_lock); |
20346722 | 2754 | return; |
1da177e4 | 2755 | } |
da6971d8 | 2756 | if (nic->rxd_mode == RXD_MODE_1) { |
6d517a27 | 2757 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2758 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2759 | rxdp1->Buffer0_ptr, |
2760 | dev->mtu + | |
2761 | HEADER_ETHERNET_II_802_3_SIZE + | |
2762 | HEADER_802_2_SIZE + | |
2763 | HEADER_SNAP_SIZE, | |
2764 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2765 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2766 | rxdp3 = (struct RxD3*)rxdp; |
75c30b13 | 2767 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2768 | rxdp3->Buffer0_ptr, |
2769 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
da6971d8 | 2770 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2771 | rxdp3->Buffer2_ptr, |
2772 | dev->mtu + 4, | |
2773 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2774 | } |
863c11a9 | 2775 | prefetch(skb->data); |
20346722 K |
2776 | rx_osm_handler(ring_data, rxdp); |
2777 | get_info.offset++; | |
da6971d8 AR |
2778 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2779 | rxdp = ring_data->rx_blocks[get_block]. | |
2780 | rxds[get_info.offset].virt_addr; | |
2781 | if (get_info.offset == rxd_count[nic->rxd_mode]) { | |
20346722 | 2782 | get_info.offset = 0; |
da6971d8 | 2783 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2784 | get_block++; |
da6971d8 AR |
2785 | if (get_block == ring_data->block_count) |
2786 | get_block = 0; | |
2787 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 K |
2788 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2789 | } | |
1da177e4 | 2790 | |
20346722 | 2791 | nic->pkts_to_process -= 1; |
db874e65 | 2792 | if ((napi) && (!nic->pkts_to_process)) |
20346722 | 2793 | break; |
20346722 | 2794 | pkt_cnt++; |
1da177e4 LT |
2795 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2796 | break; | |
2797 | } | |
7d3d0439 RA |
2798 | if (nic->lro) { |
2799 | /* Clear all LRO sessions before exiting */ | |
2800 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 2801 | struct lro *lro = &nic->lro0_n[i]; |
7d3d0439 RA |
2802 | if (lro->in_use) { |
2803 | update_L3L4_header(nic, lro); | |
2804 | queue_rx_frame(lro->parent); | |
2805 | clear_lro_session(lro); | |
2806 | } | |
2807 | } | |
2808 | } | |
2809 | ||
7ba013ac | 2810 | spin_unlock(&nic->rx_lock); |
1da177e4 | 2811 | } |
20346722 K |
2812 | |
2813 | /** | |
1da177e4 LT |
2814 | * tx_intr_handler - Transmit interrupt handler |
2815 | * @nic : device private variable | |
20346722 K |
2816 | * Description: |
2817 | * If an interrupt was raised to indicate DMA complete of the | |
2818 | * Tx packet, this function is called. It identifies the last TxD | |
2819 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
2820 | * DMA'ed into the NICs internal memory. |
2821 | * Return Value: | |
2822 | * NONE | |
2823 | */ | |
2824 | ||
1ee6dd77 | 2825 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 2826 | { |
1ee6dd77 | 2827 | struct s2io_nic *nic = fifo_data->nic; |
1da177e4 | 2828 | struct net_device *dev = (struct net_device *) nic->dev; |
1ee6dd77 | 2829 | struct tx_curr_get_info get_info, put_info; |
1da177e4 | 2830 | struct sk_buff *skb; |
1ee6dd77 | 2831 | struct TxD *txdlp; |
f9046eb3 | 2832 | u8 err_mask; |
1da177e4 | 2833 | |
20346722 | 2834 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 RB |
2835 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
2836 | txdlp = (struct TxD *) fifo_data->list_info[get_info.offset]. | |
20346722 K |
2837 | list_virt_addr; |
2838 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && | |
2839 | (get_info.offset != put_info.offset) && | |
2840 | (txdlp->Host_Control)) { | |
2841 | /* Check for TxD errors */ | |
2842 | if (txdlp->Control_1 & TXD_T_CODE) { | |
2843 | unsigned long long err; | |
2844 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 AR |
2845 | if (err & 0x1) { |
2846 | nic->mac_control.stats_info->sw_stat. | |
2847 | parity_err_cnt++; | |
2848 | } | |
491976b2 SH |
2849 | |
2850 | /* update t_code statistics */ | |
f9046eb3 OH |
2851 | err_mask = err >> 48; |
2852 | switch(err_mask) { | |
491976b2 SH |
2853 | case 2: |
2854 | nic->mac_control.stats_info->sw_stat. | |
2855 | tx_buf_abort_cnt++; | |
2856 | break; | |
2857 | ||
2858 | case 3: | |
2859 | nic->mac_control.stats_info->sw_stat. | |
2860 | tx_desc_abort_cnt++; | |
2861 | break; | |
2862 | ||
2863 | case 7: | |
2864 | nic->mac_control.stats_info->sw_stat. | |
2865 | tx_parity_err_cnt++; | |
2866 | break; | |
2867 | ||
2868 | case 10: | |
2869 | nic->mac_control.stats_info->sw_stat. | |
2870 | tx_link_loss_cnt++; | |
2871 | break; | |
2872 | ||
2873 | case 15: | |
2874 | nic->mac_control.stats_info->sw_stat. | |
2875 | tx_list_proc_err_cnt++; | |
2876 | break; | |
2877 | } | |
20346722 | 2878 | } |
1da177e4 | 2879 | |
fed5eccd | 2880 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 K |
2881 | if (skb == NULL) { |
2882 | DBG_PRINT(ERR_DBG, "%s: Null skb ", | |
2883 | __FUNCTION__); | |
2884 | DBG_PRINT(ERR_DBG, "in Tx Free Intr\n"); | |
2885 | return; | |
2886 | } | |
2887 | ||
20346722 | 2888 | /* Updating the statistics block */ |
20346722 | 2889 | nic->stats.tx_bytes += skb->len; |
491976b2 | 2890 | nic->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
20346722 K |
2891 | dev_kfree_skb_irq(skb); |
2892 | ||
2893 | get_info.offset++; | |
863c11a9 AR |
2894 | if (get_info.offset == get_info.fifo_len + 1) |
2895 | get_info.offset = 0; | |
1ee6dd77 | 2896 | txdlp = (struct TxD *) fifo_data->list_info |
20346722 K |
2897 | [get_info.offset].list_virt_addr; |
2898 | fifo_data->tx_curr_get_info.offset = | |
2899 | get_info.offset; | |
1da177e4 LT |
2900 | } |
2901 | ||
2902 | spin_lock(&nic->tx_lock); | |
2903 | if (netif_queue_stopped(dev)) | |
2904 | netif_wake_queue(dev); | |
2905 | spin_unlock(&nic->tx_lock); | |
2906 | } | |
2907 | ||
bd1034f0 AR |
2908 | /** |
2909 | * s2io_mdio_write - Function to write in to MDIO registers | |
2910 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2911 | * @addr : address value | |
2912 | * @value : data value | |
2913 | * @dev : pointer to net_device structure | |
2914 | * Description: | |
2915 | * This function is used to write values to the MDIO registers | |
2916 | * NONE | |
2917 | */ | |
2918 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev) | |
2919 | { | |
2920 | u64 val64 = 0x0; | |
1ee6dd77 RB |
2921 | struct s2io_nic *sp = dev->priv; |
2922 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2923 | |
2924 | //address transaction | |
2925 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2926 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2927 | | MDIO_MMS_PRT_ADDR(0x0); | |
2928 | writeq(val64, &bar0->mdio_control); | |
2929 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2930 | writeq(val64, &bar0->mdio_control); | |
2931 | udelay(100); | |
2932 | ||
2933 | //Data transaction | |
2934 | val64 = 0x0; | |
2935 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2936 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2937 | | MDIO_MMS_PRT_ADDR(0x0) | |
2938 | | MDIO_MDIO_DATA(value) | |
2939 | | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
2940 | writeq(val64, &bar0->mdio_control); | |
2941 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2942 | writeq(val64, &bar0->mdio_control); | |
2943 | udelay(100); | |
2944 | ||
2945 | val64 = 0x0; | |
2946 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2947 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2948 | | MDIO_MMS_PRT_ADDR(0x0) | |
2949 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2950 | writeq(val64, &bar0->mdio_control); | |
2951 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2952 | writeq(val64, &bar0->mdio_control); | |
2953 | udelay(100); | |
2954 | ||
2955 | } | |
2956 | ||
2957 | /** | |
2958 | * s2io_mdio_read - Function to write in to MDIO registers | |
2959 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2960 | * @addr : address value | |
2961 | * @dev : pointer to net_device structure | |
2962 | * Description: | |
2963 | * This function is used to read values to the MDIO registers | |
2964 | * NONE | |
2965 | */ | |
2966 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
2967 | { | |
2968 | u64 val64 = 0x0; | |
2969 | u64 rval64 = 0x0; | |
1ee6dd77 RB |
2970 | struct s2io_nic *sp = dev->priv; |
2971 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2972 | |
2973 | /* address transaction */ | |
2974 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2975 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2976 | | MDIO_MMS_PRT_ADDR(0x0); | |
2977 | writeq(val64, &bar0->mdio_control); | |
2978 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2979 | writeq(val64, &bar0->mdio_control); | |
2980 | udelay(100); | |
2981 | ||
2982 | /* Data transaction */ | |
2983 | val64 = 0x0; | |
2984 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2985 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2986 | | MDIO_MMS_PRT_ADDR(0x0) | |
2987 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2988 | writeq(val64, &bar0->mdio_control); | |
2989 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2990 | writeq(val64, &bar0->mdio_control); | |
2991 | udelay(100); | |
2992 | ||
2993 | /* Read the value from regs */ | |
2994 | rval64 = readq(&bar0->mdio_control); | |
2995 | rval64 = rval64 & 0xFFFF0000; | |
2996 | rval64 = rval64 >> 16; | |
2997 | return rval64; | |
2998 | } | |
2999 | /** | |
3000 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
3001 | * @counter : couter value to be updated | |
3002 | * @flag : flag to indicate the status | |
3003 | * @type : counter type | |
3004 | * Description: | |
3005 | * This function is to check the status of the xpak counters value | |
3006 | * NONE | |
3007 | */ | |
3008 | ||
3009 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type) | |
3010 | { | |
3011 | u64 mask = 0x3; | |
3012 | u64 val64; | |
3013 | int i; | |
3014 | for(i = 0; i <index; i++) | |
3015 | mask = mask << 0x2; | |
3016 | ||
3017 | if(flag > 0) | |
3018 | { | |
3019 | *counter = *counter + 1; | |
3020 | val64 = *regs_stat & mask; | |
3021 | val64 = val64 >> (index * 0x2); | |
3022 | val64 = val64 + 1; | |
3023 | if(val64 == 3) | |
3024 | { | |
3025 | switch(type) | |
3026 | { | |
3027 | case 1: | |
3028 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3029 | "service. Excessive temperatures may " | |
3030 | "result in premature transceiver " | |
3031 | "failure \n"); | |
3032 | break; | |
3033 | case 2: | |
3034 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3035 | "service Excessive bias currents may " | |
3036 | "indicate imminent laser diode " | |
3037 | "failure \n"); | |
3038 | break; | |
3039 | case 3: | |
3040 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3041 | "service Excessive laser output " | |
3042 | "power may saturate far-end " | |
3043 | "receiver\n"); | |
3044 | break; | |
3045 | default: | |
3046 | DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm " | |
3047 | "type \n"); | |
3048 | } | |
3049 | val64 = 0x0; | |
3050 | } | |
3051 | val64 = val64 << (index * 0x2); | |
3052 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3053 | ||
3054 | } else { | |
3055 | *regs_stat = *regs_stat & (~mask); | |
3056 | } | |
3057 | } | |
3058 | ||
3059 | /** | |
3060 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3061 | * @dev : pointer to net_device struct | |
3062 | * Description: | |
3063 | * This function is to upate the status of the xpak counters value | |
3064 | * NONE | |
3065 | */ | |
3066 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3067 | { | |
3068 | u16 flag = 0x0; | |
3069 | u16 type = 0x0; | |
3070 | u16 val16 = 0x0; | |
3071 | u64 val64 = 0x0; | |
3072 | u64 addr = 0x0; | |
3073 | ||
1ee6dd77 RB |
3074 | struct s2io_nic *sp = dev->priv; |
3075 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
bd1034f0 AR |
3076 | |
3077 | /* Check the communication with the MDIO slave */ | |
3078 | addr = 0x0000; | |
3079 | val64 = 0x0; | |
3080 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3081 | if((val64 == 0xFFFF) || (val64 == 0x0000)) | |
3082 | { | |
3083 | DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - " | |
3084 | "Returned %llx\n", (unsigned long long)val64); | |
3085 | return; | |
3086 | } | |
3087 | ||
3088 | /* Check for the expecte value of 2040 at PMA address 0x0000 */ | |
3089 | if(val64 != 0x2040) | |
3090 | { | |
3091 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "); | |
3092 | DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n", | |
3093 | (unsigned long long)val64); | |
3094 | return; | |
3095 | } | |
3096 | ||
3097 | /* Loading the DOM register to MDIO register */ | |
3098 | addr = 0xA100; | |
3099 | s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev); | |
3100 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3101 | ||
3102 | /* Reading the Alarm flags */ | |
3103 | addr = 0xA070; | |
3104 | val64 = 0x0; | |
3105 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3106 | ||
3107 | flag = CHECKBIT(val64, 0x7); | |
3108 | type = 1; | |
3109 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high, | |
3110 | &stat_info->xpak_stat.xpak_regs_stat, | |
3111 | 0x0, flag, type); | |
3112 | ||
3113 | if(CHECKBIT(val64, 0x6)) | |
3114 | stat_info->xpak_stat.alarm_transceiver_temp_low++; | |
3115 | ||
3116 | flag = CHECKBIT(val64, 0x3); | |
3117 | type = 2; | |
3118 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high, | |
3119 | &stat_info->xpak_stat.xpak_regs_stat, | |
3120 | 0x2, flag, type); | |
3121 | ||
3122 | if(CHECKBIT(val64, 0x2)) | |
3123 | stat_info->xpak_stat.alarm_laser_bias_current_low++; | |
3124 | ||
3125 | flag = CHECKBIT(val64, 0x1); | |
3126 | type = 3; | |
3127 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high, | |
3128 | &stat_info->xpak_stat.xpak_regs_stat, | |
3129 | 0x4, flag, type); | |
3130 | ||
3131 | if(CHECKBIT(val64, 0x0)) | |
3132 | stat_info->xpak_stat.alarm_laser_output_power_low++; | |
3133 | ||
3134 | /* Reading the Warning flags */ | |
3135 | addr = 0xA074; | |
3136 | val64 = 0x0; | |
3137 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3138 | ||
3139 | if(CHECKBIT(val64, 0x7)) | |
3140 | stat_info->xpak_stat.warn_transceiver_temp_high++; | |
3141 | ||
3142 | if(CHECKBIT(val64, 0x6)) | |
3143 | stat_info->xpak_stat.warn_transceiver_temp_low++; | |
3144 | ||
3145 | if(CHECKBIT(val64, 0x3)) | |
3146 | stat_info->xpak_stat.warn_laser_bias_current_high++; | |
3147 | ||
3148 | if(CHECKBIT(val64, 0x2)) | |
3149 | stat_info->xpak_stat.warn_laser_bias_current_low++; | |
3150 | ||
3151 | if(CHECKBIT(val64, 0x1)) | |
3152 | stat_info->xpak_stat.warn_laser_output_power_high++; | |
3153 | ||
3154 | if(CHECKBIT(val64, 0x0)) | |
3155 | stat_info->xpak_stat.warn_laser_output_power_low++; | |
3156 | } | |
3157 | ||
20346722 | 3158 | /** |
1da177e4 LT |
3159 | * alarm_intr_handler - Alarm Interrrupt handler |
3160 | * @nic: device private variable | |
20346722 | 3161 | * Description: If the interrupt was neither because of Rx packet or Tx |
1da177e4 | 3162 | * complete, this function is called. If the interrupt was to indicate |
20346722 K |
3163 | * a loss of link, the OSM link status handler is invoked for any other |
3164 | * alarm interrupt the block that raised the interrupt is displayed | |
1da177e4 LT |
3165 | * and a H/W reset is issued. |
3166 | * Return Value: | |
3167 | * NONE | |
3168 | */ | |
3169 | ||
3170 | static void alarm_intr_handler(struct s2io_nic *nic) | |
3171 | { | |
3172 | struct net_device *dev = (struct net_device *) nic->dev; | |
1ee6dd77 | 3173 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 3174 | register u64 val64 = 0, err_reg = 0; |
bd1034f0 AR |
3175 | u64 cnt; |
3176 | int i; | |
372cc597 SS |
3177 | if (atomic_read(&nic->card_state) == CARD_DOWN) |
3178 | return; | |
d796fdb7 LV |
3179 | if (pci_channel_offline(nic->pdev)) |
3180 | return; | |
bd1034f0 AR |
3181 | nic->mac_control.stats_info->sw_stat.ring_full_cnt = 0; |
3182 | /* Handling the XPAK counters update */ | |
3183 | if(nic->mac_control.stats_info->xpak_stat.xpak_timer_count < 72000) { | |
3184 | /* waiting for an hour */ | |
3185 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count++; | |
3186 | } else { | |
3187 | s2io_updt_xpak_counter(dev); | |
3188 | /* reset the count to zero */ | |
3189 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count = 0; | |
3190 | } | |
1da177e4 LT |
3191 | |
3192 | /* Handling link status change error Intr */ | |
a371a07d K |
3193 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
3194 | err_reg = readq(&bar0->mac_rmac_err_reg); | |
3195 | writeq(err_reg, &bar0->mac_rmac_err_reg); | |
3196 | if (err_reg & RMAC_LINK_STATE_CHANGE_INT) { | |
3197 | schedule_work(&nic->set_link_task); | |
3198 | } | |
1da177e4 LT |
3199 | } |
3200 | ||
5e25b9dd K |
3201 | /* Handling Ecc errors */ |
3202 | val64 = readq(&bar0->mc_err_reg); | |
3203 | writeq(val64, &bar0->mc_err_reg); | |
3204 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
3205 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
7ba013ac K |
3206 | nic->mac_control.stats_info->sw_stat. |
3207 | double_ecc_errs++; | |
776bd20f | 3208 | DBG_PRINT(INIT_DBG, "%s: Device indicates ", |
5e25b9dd | 3209 | dev->name); |
776bd20f | 3210 | DBG_PRINT(INIT_DBG, "double ECC error!!\n"); |
e960fc5c | 3211 | if (nic->device_type != XFRAME_II_DEVICE) { |
776bd20f | 3212 | /* Reset XframeI only if critical error */ |
3213 | if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | | |
3214 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) { | |
3215 | netif_stop_queue(dev); | |
3216 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 AR |
3217 | nic->mac_control.stats_info->sw_stat. |
3218 | soft_reset_cnt++; | |
776bd20f | 3219 | } |
e960fc5c | 3220 | } |
5e25b9dd | 3221 | } else { |
7ba013ac K |
3222 | nic->mac_control.stats_info->sw_stat. |
3223 | single_ecc_errs++; | |
5e25b9dd K |
3224 | } |
3225 | } | |
3226 | ||
1da177e4 LT |
3227 | /* In case of a serious error, the device will be Reset. */ |
3228 | val64 = readq(&bar0->serr_source); | |
3229 | if (val64 & SERR_SOURCE_ANY) { | |
bd1034f0 | 3230 | nic->mac_control.stats_info->sw_stat.serious_err_cnt++; |
1da177e4 | 3231 | DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name); |
6aa20a22 | 3232 | DBG_PRINT(ERR_DBG, "serious error %llx!!\n", |
776bd20f | 3233 | (unsigned long long)val64); |
1da177e4 LT |
3234 | netif_stop_queue(dev); |
3235 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 | 3236 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
3237 | } |
3238 | ||
3239 | /* | |
3240 | * Also as mentioned in the latest Errata sheets if the PCC_FB_ECC | |
3241 | * Error occurs, the adapter will be recycled by disabling the | |
20346722 | 3242 | * adapter enable bit and enabling it again after the device |
1da177e4 LT |
3243 | * becomes Quiescent. |
3244 | */ | |
3245 | val64 = readq(&bar0->pcc_err_reg); | |
3246 | writeq(val64, &bar0->pcc_err_reg); | |
3247 | if (val64 & PCC_FB_ECC_DB_ERR) { | |
3248 | u64 ac = readq(&bar0->adapter_control); | |
3249 | ac &= ~(ADAPTER_CNTL_EN); | |
3250 | writeq(ac, &bar0->adapter_control); | |
3251 | ac = readq(&bar0->adapter_control); | |
3252 | schedule_work(&nic->set_link_task); | |
3253 | } | |
bd1034f0 AR |
3254 | /* Check for data parity error */ |
3255 | val64 = readq(&bar0->pic_int_status); | |
3256 | if (val64 & PIC_INT_GPIO) { | |
3257 | val64 = readq(&bar0->gpio_int_reg); | |
3258 | if (val64 & GPIO_INT_REG_DP_ERR_INT) { | |
3259 | nic->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
3260 | schedule_work(&nic->rst_timer_task); | |
3261 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; | |
3262 | } | |
3263 | } | |
3264 | ||
3265 | /* Check for ring full counter */ | |
3266 | if (nic->device_type & XFRAME_II_DEVICE) { | |
3267 | val64 = readq(&bar0->ring_bump_counter1); | |
3268 | for (i=0; i<4; i++) { | |
3269 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3270 | cnt >>= 64 - ((i+1)*16); | |
3271 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3272 | += cnt; | |
3273 | } | |
3274 | ||
3275 | val64 = readq(&bar0->ring_bump_counter2); | |
3276 | for (i=0; i<4; i++) { | |
3277 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3278 | cnt >>= 64 - ((i+1)*16); | |
3279 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3280 | += cnt; | |
3281 | } | |
3282 | } | |
1da177e4 LT |
3283 | |
3284 | /* Other type of interrupts are not being handled now, TODO */ | |
3285 | } | |
3286 | ||
20346722 | 3287 | /** |
1da177e4 | 3288 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3289 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3290 | * s2io_nic structure. |
20346722 K |
3291 | * Description: Function that waits for a command to Write into RMAC |
3292 | * ADDR DATA registers to be completed and returns either success or | |
3293 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3294 | * Return value: |
3295 | * SUCCESS on success and FAILURE on failure. | |
3296 | */ | |
3297 | ||
9fc93a41 SS |
3298 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, |
3299 | int bit_state) | |
1da177e4 | 3300 | { |
9fc93a41 | 3301 | int ret = FAILURE, cnt = 0, delay = 1; |
1da177e4 LT |
3302 | u64 val64; |
3303 | ||
9fc93a41 SS |
3304 | if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET)) |
3305 | return FAILURE; | |
3306 | ||
3307 | do { | |
c92ca04b | 3308 | val64 = readq(addr); |
9fc93a41 SS |
3309 | if (bit_state == S2IO_BIT_RESET) { |
3310 | if (!(val64 & busy_bit)) { | |
3311 | ret = SUCCESS; | |
3312 | break; | |
3313 | } | |
3314 | } else { | |
3315 | if (!(val64 & busy_bit)) { | |
3316 | ret = SUCCESS; | |
3317 | break; | |
3318 | } | |
1da177e4 | 3319 | } |
c92ca04b AR |
3320 | |
3321 | if(in_interrupt()) | |
9fc93a41 | 3322 | mdelay(delay); |
c92ca04b | 3323 | else |
9fc93a41 | 3324 | msleep(delay); |
c92ca04b | 3325 | |
9fc93a41 SS |
3326 | if (++cnt >= 10) |
3327 | delay = 50; | |
3328 | } while (cnt < 20); | |
1da177e4 LT |
3329 | return ret; |
3330 | } | |
19a60522 SS |
3331 | /* |
3332 | * check_pci_device_id - Checks if the device id is supported | |
3333 | * @id : device id | |
3334 | * Description: Function to check if the pci device id is supported by driver. | |
3335 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3336 | */ | |
3337 | static u16 check_pci_device_id(u16 id) | |
3338 | { | |
3339 | switch (id) { | |
3340 | case PCI_DEVICE_ID_HERC_WIN: | |
3341 | case PCI_DEVICE_ID_HERC_UNI: | |
3342 | return XFRAME_II_DEVICE; | |
3343 | case PCI_DEVICE_ID_S2IO_UNI: | |
3344 | case PCI_DEVICE_ID_S2IO_WIN: | |
3345 | return XFRAME_I_DEVICE; | |
3346 | default: | |
3347 | return PCI_ANY_ID; | |
3348 | } | |
3349 | } | |
1da177e4 | 3350 | |
20346722 K |
3351 | /** |
3352 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3353 | * @sp : private member of the device structure. |
3354 | * Description: Function to Reset the card. This function then also | |
20346722 | 3355 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3356 | * the card reset also resets the configuration space. |
3357 | * Return value: | |
3358 | * void. | |
3359 | */ | |
3360 | ||
1ee6dd77 | 3361 | static void s2io_reset(struct s2io_nic * sp) |
1da177e4 | 3362 | { |
1ee6dd77 | 3363 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3364 | u64 val64; |
5e25b9dd | 3365 | u16 subid, pci_cmd; |
19a60522 SS |
3366 | int i; |
3367 | u16 val16; | |
491976b2 SH |
3368 | unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt; |
3369 | unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt; | |
3370 | ||
19a60522 SS |
3371 | DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n", |
3372 | __FUNCTION__, sp->dev->name); | |
1da177e4 | 3373 | |
0b1f7ebe | 3374 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3375 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3376 | |
1da177e4 LT |
3377 | val64 = SW_RESET_ALL; |
3378 | writeq(val64, &bar0->sw_reset); | |
c92ca04b AR |
3379 | if (strstr(sp->product_name, "CX4")) { |
3380 | msleep(750); | |
3381 | } | |
19a60522 SS |
3382 | msleep(250); |
3383 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3384 | |
19a60522 SS |
3385 | /* Restore the PCI state saved during initialization. */ |
3386 | pci_restore_state(sp->pdev); | |
3387 | pci_read_config_word(sp->pdev, 0x2, &val16); | |
3388 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3389 | break; | |
3390 | msleep(200); | |
3391 | } | |
1da177e4 | 3392 | |
19a60522 SS |
3393 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) { |
3394 | DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__); | |
3395 | } | |
3396 | ||
3397 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3398 | ||
3399 | s2io_init_pci(sp); | |
1da177e4 | 3400 | |
20346722 K |
3401 | /* Set swapper to enable I/O register access */ |
3402 | s2io_set_swapper(sp); | |
3403 | ||
cc6e7c44 RA |
3404 | /* Restore the MSIX table entries from local variables */ |
3405 | restore_xmsi_data(sp); | |
3406 | ||
5e25b9dd | 3407 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3408 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3409 | /* Clear "detected parity error" bit */ |
303bcb4b | 3410 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3411 | |
303bcb4b K |
3412 | /* Clearing PCIX Ecc status register */ |
3413 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3414 | |
303bcb4b K |
3415 | /* Clearing PCI_STATUS error reflected here */ |
3416 | writeq(BIT(62), &bar0->txpic_int_reg); | |
3417 | } | |
5e25b9dd | 3418 | |
20346722 K |
3419 | /* Reset device statistics maintained by OS */ |
3420 | memset(&sp->stats, 0, sizeof (struct net_device_stats)); | |
491976b2 SH |
3421 | |
3422 | up_cnt = sp->mac_control.stats_info->sw_stat.link_up_cnt; | |
3423 | down_cnt = sp->mac_control.stats_info->sw_stat.link_down_cnt; | |
3424 | up_time = sp->mac_control.stats_info->sw_stat.link_up_time; | |
3425 | down_time = sp->mac_control.stats_info->sw_stat.link_down_time; | |
363dc367 | 3426 | reset_cnt = sp->mac_control.stats_info->sw_stat.soft_reset_cnt; |
491976b2 SH |
3427 | mem_alloc_cnt = sp->mac_control.stats_info->sw_stat.mem_allocated; |
3428 | mem_free_cnt = sp->mac_control.stats_info->sw_stat.mem_freed; | |
3429 | watchdog_cnt = sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt; | |
3430 | /* save link up/down time/cnt, reset/memory/watchdog cnt */ | |
363dc367 | 3431 | memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block)); |
491976b2 SH |
3432 | /* restore link up/down time/cnt, reset/memory/watchdog cnt */ |
3433 | sp->mac_control.stats_info->sw_stat.link_up_cnt = up_cnt; | |
3434 | sp->mac_control.stats_info->sw_stat.link_down_cnt = down_cnt; | |
3435 | sp->mac_control.stats_info->sw_stat.link_up_time = up_time; | |
3436 | sp->mac_control.stats_info->sw_stat.link_down_time = down_time; | |
363dc367 | 3437 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt = reset_cnt; |
491976b2 SH |
3438 | sp->mac_control.stats_info->sw_stat.mem_allocated = mem_alloc_cnt; |
3439 | sp->mac_control.stats_info->sw_stat.mem_freed = mem_free_cnt; | |
3440 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt = watchdog_cnt; | |
20346722 | 3441 | |
1da177e4 LT |
3442 | /* SXE-002: Configure link and activity LED to turn it off */ |
3443 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
3444 | if (((subid & 0xFF) >= 0x07) && |
3445 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3446 | val64 = readq(&bar0->gpio_control); |
3447 | val64 |= 0x0000800000000000ULL; | |
3448 | writeq(val64, &bar0->gpio_control); | |
3449 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3450 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3451 | } |
3452 | ||
541ae68f K |
3453 | /* |
3454 | * Clear spurious ECC interrupts that would have occured on | |
3455 | * XFRAME II cards after reset. | |
3456 | */ | |
3457 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3458 | val64 = readq(&bar0->pcc_err_reg); | |
3459 | writeq(val64, &bar0->pcc_err_reg); | |
3460 | } | |
3461 | ||
d8d70caf SS |
3462 | /* restore the previously assigned mac address */ |
3463 | s2io_set_mac_addr(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr); | |
3464 | ||
1da177e4 LT |
3465 | sp->device_enabled_once = FALSE; |
3466 | } | |
3467 | ||
3468 | /** | |
20346722 K |
3469 | * s2io_set_swapper - to set the swapper controle on the card |
3470 | * @sp : private member of the device structure, | |
1da177e4 | 3471 | * pointer to the s2io_nic structure. |
20346722 | 3472 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3473 | * correctly depending on the 'endianness' of the system. |
3474 | * Return value: | |
3475 | * SUCCESS on success and FAILURE on failure. | |
3476 | */ | |
3477 | ||
1ee6dd77 | 3478 | static int s2io_set_swapper(struct s2io_nic * sp) |
1da177e4 LT |
3479 | { |
3480 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3481 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3482 | u64 val64, valt, valr; |
3483 | ||
20346722 | 3484 | /* |
1da177e4 LT |
3485 | * Set proper endian settings and verify the same by reading |
3486 | * the PIF Feed-back register. | |
3487 | */ | |
3488 | ||
3489 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3490 | if (val64 != 0x0123456789ABCDEFULL) { | |
3491 | int i = 0; | |
3492 | u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3493 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3494 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3495 | 0}; /* FE=0, SE=0 */ | |
3496 | ||
3497 | while(i<4) { | |
3498 | writeq(value[i], &bar0->swapper_ctrl); | |
3499 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3500 | if (val64 == 0x0123456789ABCDEFULL) | |
3501 | break; | |
3502 | i++; | |
3503 | } | |
3504 | if (i == 4) { | |
3505 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3506 | dev->name); | |
3507 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3508 | (unsigned long long) val64); | |
3509 | return FAILURE; | |
3510 | } | |
3511 | valr = value[i]; | |
3512 | } else { | |
3513 | valr = readq(&bar0->swapper_ctrl); | |
3514 | } | |
3515 | ||
3516 | valt = 0x0123456789ABCDEFULL; | |
3517 | writeq(valt, &bar0->xmsi_address); | |
3518 | val64 = readq(&bar0->xmsi_address); | |
3519 | ||
3520 | if(val64 != valt) { | |
3521 | int i = 0; | |
3522 | u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3523 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3524 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3525 | 0}; /* FE=0, SE=0 */ | |
3526 | ||
3527 | while(i<4) { | |
3528 | writeq((value[i] | valr), &bar0->swapper_ctrl); | |
3529 | writeq(valt, &bar0->xmsi_address); | |
3530 | val64 = readq(&bar0->xmsi_address); | |
3531 | if(val64 == valt) | |
3532 | break; | |
3533 | i++; | |
3534 | } | |
3535 | if(i == 4) { | |
20346722 | 3536 | unsigned long long x = val64; |
1da177e4 | 3537 | DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr "); |
20346722 | 3538 | DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x); |
1da177e4 LT |
3539 | return FAILURE; |
3540 | } | |
3541 | } | |
3542 | val64 = readq(&bar0->swapper_ctrl); | |
3543 | val64 &= 0xFFFF000000000000ULL; | |
3544 | ||
3545 | #ifdef __BIG_ENDIAN | |
20346722 K |
3546 | /* |
3547 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3548 | * big endian driver need not set anything. |
3549 | */ | |
3550 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3551 | SWAPPER_CTRL_TXP_SE | | |
3552 | SWAPPER_CTRL_TXD_R_FE | | |
3553 | SWAPPER_CTRL_TXD_W_FE | | |
3554 | SWAPPER_CTRL_TXF_R_FE | | |
3555 | SWAPPER_CTRL_RXD_R_FE | | |
3556 | SWAPPER_CTRL_RXD_W_FE | | |
3557 | SWAPPER_CTRL_RXF_W_FE | | |
3558 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3559 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
92383340 | 3560 | if (sp->intr_type == INTA) |
cc6e7c44 | 3561 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3562 | writeq(val64, &bar0->swapper_ctrl); |
3563 | #else | |
20346722 | 3564 | /* |
1da177e4 | 3565 | * Initially we enable all bits to make it accessible by the |
20346722 | 3566 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3567 | * we want to set. |
3568 | */ | |
3569 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3570 | SWAPPER_CTRL_TXP_SE | | |
3571 | SWAPPER_CTRL_TXD_R_FE | | |
3572 | SWAPPER_CTRL_TXD_R_SE | | |
3573 | SWAPPER_CTRL_TXD_W_FE | | |
3574 | SWAPPER_CTRL_TXD_W_SE | | |
3575 | SWAPPER_CTRL_TXF_R_FE | | |
3576 | SWAPPER_CTRL_RXD_R_FE | | |
3577 | SWAPPER_CTRL_RXD_R_SE | | |
3578 | SWAPPER_CTRL_RXD_W_FE | | |
3579 | SWAPPER_CTRL_RXD_W_SE | | |
3580 | SWAPPER_CTRL_RXF_W_FE | | |
3581 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3582 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
cc6e7c44 RA |
3583 | if (sp->intr_type == INTA) |
3584 | val64 |= SWAPPER_CTRL_XMSI_SE; | |
1da177e4 LT |
3585 | writeq(val64, &bar0->swapper_ctrl); |
3586 | #endif | |
3587 | val64 = readq(&bar0->swapper_ctrl); | |
3588 | ||
20346722 K |
3589 | /* |
3590 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3591 | * feedback register. |
3592 | */ | |
3593 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3594 | if (val64 != 0x0123456789ABCDEFULL) { | |
3595 | /* Endian settings are incorrect, calls for another dekko. */ | |
3596 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3597 | dev->name); | |
3598 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3599 | (unsigned long long) val64); | |
3600 | return FAILURE; | |
3601 | } | |
3602 | ||
3603 | return SUCCESS; | |
3604 | } | |
3605 | ||
1ee6dd77 | 3606 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3607 | { |
1ee6dd77 | 3608 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3609 | u64 val64; |
3610 | int ret = 0, cnt = 0; | |
3611 | ||
3612 | do { | |
3613 | val64 = readq(&bar0->xmsi_access); | |
3614 | if (!(val64 & BIT(15))) | |
3615 | break; | |
3616 | mdelay(1); | |
3617 | cnt++; | |
3618 | } while(cnt < 5); | |
3619 | if (cnt == 5) { | |
3620 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3621 | ret = 1; | |
3622 | } | |
3623 | ||
3624 | return ret; | |
3625 | } | |
3626 | ||
1ee6dd77 | 3627 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3628 | { |
1ee6dd77 | 3629 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3630 | u64 val64; |
3631 | int i; | |
3632 | ||
75c30b13 | 3633 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3634 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3635 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
3636 | val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6)); | |
3637 | writeq(val64, &bar0->xmsi_access); | |
3638 | if (wait_for_msix_trans(nic, i)) { | |
3639 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3640 | continue; | |
3641 | } | |
3642 | } | |
3643 | } | |
3644 | ||
1ee6dd77 | 3645 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3646 | { |
1ee6dd77 | 3647 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3648 | u64 val64, addr, data; |
3649 | int i; | |
3650 | ||
3651 | /* Store and display */ | |
75c30b13 | 3652 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3653 | val64 = (BIT(15) | vBIT(i, 26, 6)); |
3654 | writeq(val64, &bar0->xmsi_access); | |
3655 | if (wait_for_msix_trans(nic, i)) { | |
3656 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3657 | continue; | |
3658 | } | |
3659 | addr = readq(&bar0->xmsi_address); | |
3660 | data = readq(&bar0->xmsi_data); | |
3661 | if (addr && data) { | |
3662 | nic->msix_info[i].addr = addr; | |
3663 | nic->msix_info[i].data = data; | |
3664 | } | |
3665 | } | |
3666 | } | |
3667 | ||
1ee6dd77 | 3668 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3669 | { |
1ee6dd77 | 3670 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3671 | u64 tx_mat, rx_mat; |
3672 | u16 msi_control; /* Temp variable */ | |
3673 | int ret, i, j, msix_indx = 1; | |
3674 | ||
3675 | nic->entries = kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry), | |
3676 | GFP_KERNEL); | |
3677 | if (nic->entries == NULL) { | |
491976b2 SH |
3678 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", \ |
3679 | __FUNCTION__); | |
c53d4945 | 3680 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 RA |
3681 | return -ENOMEM; |
3682 | } | |
491976b2 SH |
3683 | nic->mac_control.stats_info->sw_stat.mem_allocated |
3684 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3685 | memset(nic->entries, 0,MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 RA |
3686 | |
3687 | nic->s2io_entries = | |
3688 | kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry), | |
3689 | GFP_KERNEL); | |
3690 | if (nic->s2io_entries == NULL) { | |
491976b2 SH |
3691 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
3692 | __FUNCTION__); | |
c53d4945 | 3693 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 | 3694 | kfree(nic->entries); |
491976b2 SH |
3695 | nic->mac_control.stats_info->sw_stat.mem_freed |
3696 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 RA |
3697 | return -ENOMEM; |
3698 | } | |
491976b2 SH |
3699 | nic->mac_control.stats_info->sw_stat.mem_allocated |
3700 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
cc6e7c44 RA |
3701 | memset(nic->s2io_entries, 0, |
3702 | MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3703 | ||
3704 | for (i=0; i< MAX_REQUESTED_MSI_X; i++) { | |
3705 | nic->entries[i].entry = i; | |
3706 | nic->s2io_entries[i].entry = i; | |
3707 | nic->s2io_entries[i].arg = NULL; | |
3708 | nic->s2io_entries[i].in_use = 0; | |
3709 | } | |
3710 | ||
3711 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3712 | for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) { | |
3713 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3714 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i]; | |
3715 | nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE; | |
3716 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3717 | } | |
3718 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3719 | ||
3720 | if (!nic->config.bimodal) { | |
3721 | rx_mat = readq(&bar0->rx_mat); | |
3722 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3723 | rx_mat |= RX_MAT_SET(j, msix_indx); | |
491976b2 SH |
3724 | nic->s2io_entries[msix_indx].arg |
3725 | = &nic->mac_control.rings[j]; | |
cc6e7c44 RA |
3726 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; |
3727 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3728 | } | |
3729 | writeq(rx_mat, &bar0->rx_mat); | |
3730 | } else { | |
3731 | tx_mat = readq(&bar0->tx_mat0_n[7]); | |
3732 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3733 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
491976b2 SH |
3734 | nic->s2io_entries[msix_indx].arg |
3735 | = &nic->mac_control.rings[j]; | |
cc6e7c44 RA |
3736 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; |
3737 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3738 | } | |
3739 | writeq(tx_mat, &bar0->tx_mat0_n[7]); | |
3740 | } | |
3741 | ||
c92ca04b | 3742 | nic->avail_msix_vectors = 0; |
cc6e7c44 | 3743 | ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X); |
c92ca04b AR |
3744 | /* We fail init if error or we get less vectors than min required */ |
3745 | if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) { | |
3746 | nic->avail_msix_vectors = ret; | |
3747 | ret = pci_enable_msix(nic->pdev, nic->entries, ret); | |
3748 | } | |
cc6e7c44 RA |
3749 | if (ret) { |
3750 | DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name); | |
3751 | kfree(nic->entries); | |
491976b2 SH |
3752 | nic->mac_control.stats_info->sw_stat.mem_freed |
3753 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 | 3754 | kfree(nic->s2io_entries); |
491976b2 SH |
3755 | nic->mac_control.stats_info->sw_stat.mem_freed |
3756 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
cc6e7c44 RA |
3757 | nic->entries = NULL; |
3758 | nic->s2io_entries = NULL; | |
c92ca04b | 3759 | nic->avail_msix_vectors = 0; |
cc6e7c44 RA |
3760 | return -ENOMEM; |
3761 | } | |
c92ca04b AR |
3762 | if (!nic->avail_msix_vectors) |
3763 | nic->avail_msix_vectors = MAX_REQUESTED_MSI_X; | |
cc6e7c44 RA |
3764 | |
3765 | /* | |
3766 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3767 | * in the herc NIC. (Temp change, needs to be removed later) | |
3768 | */ | |
3769 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3770 | msi_control |= 0x1; /* Enable MSI */ | |
3771 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3772 | ||
3773 | return 0; | |
3774 | } | |
3775 | ||
8abc4d5b SS |
3776 | /* Handle software interrupt used during MSI(X) test */ |
3777 | static irqreturn_t __devinit s2io_test_intr(int irq, void *dev_id) | |
3778 | { | |
3779 | struct s2io_nic *sp = dev_id; | |
3780 | ||
3781 | sp->msi_detected = 1; | |
3782 | wake_up(&sp->msi_wait); | |
3783 | ||
3784 | return IRQ_HANDLED; | |
3785 | } | |
3786 | ||
3787 | /* Test interrupt path by forcing a a software IRQ */ | |
3788 | static int __devinit s2io_test_msi(struct s2io_nic *sp) | |
3789 | { | |
3790 | struct pci_dev *pdev = sp->pdev; | |
3791 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
3792 | int err; | |
3793 | u64 val64, saved64; | |
3794 | ||
3795 | err = request_irq(sp->entries[1].vector, s2io_test_intr, 0, | |
3796 | sp->name, sp); | |
3797 | if (err) { | |
3798 | DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n", | |
3799 | sp->dev->name, pci_name(pdev), pdev->irq); | |
3800 | return err; | |
3801 | } | |
3802 | ||
3803 | init_waitqueue_head (&sp->msi_wait); | |
3804 | sp->msi_detected = 0; | |
3805 | ||
3806 | saved64 = val64 = readq(&bar0->scheduled_int_ctrl); | |
3807 | val64 |= SCHED_INT_CTRL_ONE_SHOT; | |
3808 | val64 |= SCHED_INT_CTRL_TIMER_EN; | |
3809 | val64 |= SCHED_INT_CTRL_INT2MSI(1); | |
3810 | writeq(val64, &bar0->scheduled_int_ctrl); | |
3811 | ||
3812 | wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10); | |
3813 | ||
3814 | if (!sp->msi_detected) { | |
3815 | /* MSI(X) test failed, go back to INTx mode */ | |
3816 | DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated" | |
3817 | "using MSI(X) during test\n", sp->dev->name, | |
3818 | pci_name(pdev)); | |
3819 | ||
3820 | err = -EOPNOTSUPP; | |
3821 | } | |
3822 | ||
3823 | free_irq(sp->entries[1].vector, sp); | |
3824 | ||
3825 | writeq(saved64, &bar0->scheduled_int_ctrl); | |
3826 | ||
3827 | return err; | |
3828 | } | |
1da177e4 LT |
3829 | /* ********************************************************* * |
3830 | * Functions defined below concern the OS part of the driver * | |
3831 | * ********************************************************* */ | |
3832 | ||
20346722 | 3833 | /** |
1da177e4 LT |
3834 | * s2io_open - open entry point of the driver |
3835 | * @dev : pointer to the device structure. | |
3836 | * Description: | |
3837 | * This function is the open entry point of the driver. It mainly calls a | |
3838 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3839 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3840 | * Return value: |
3841 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3842 | * file on failure. | |
3843 | */ | |
3844 | ||
ac1f60db | 3845 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3846 | { |
1ee6dd77 | 3847 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3848 | int err = 0; |
3849 | ||
20346722 K |
3850 | /* |
3851 | * Make sure you have link off by default every time | |
1da177e4 LT |
3852 | * Nic is initialized |
3853 | */ | |
3854 | netif_carrier_off(dev); | |
0b1f7ebe | 3855 | sp->last_link_state = 0; |
1da177e4 | 3856 | |
bea3348e SH |
3857 | napi_enable(&sp->napi); |
3858 | ||
8abc4d5b SS |
3859 | if (sp->intr_type == MSI_X) { |
3860 | int ret = s2io_enable_msi_x(sp); | |
3861 | ||
3862 | if (!ret) { | |
3863 | u16 msi_control; | |
3864 | ||
3865 | ret = s2io_test_msi(sp); | |
3866 | ||
3867 | /* rollback MSI-X, will re-enable during add_isr() */ | |
3868 | kfree(sp->entries); | |
3869 | sp->mac_control.stats_info->sw_stat.mem_freed += | |
3870 | (MAX_REQUESTED_MSI_X * | |
3871 | sizeof(struct msix_entry)); | |
3872 | kfree(sp->s2io_entries); | |
3873 | sp->mac_control.stats_info->sw_stat.mem_freed += | |
3874 | (MAX_REQUESTED_MSI_X * | |
3875 | sizeof(struct s2io_msix_entry)); | |
3876 | sp->entries = NULL; | |
3877 | sp->s2io_entries = NULL; | |
3878 | ||
3879 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
3880 | msi_control &= 0xFFFE; /* Disable MSI */ | |
3881 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
3882 | ||
3883 | pci_disable_msix(sp->pdev); | |
3884 | ||
3885 | } | |
3886 | if (ret) { | |
3887 | ||
3888 | DBG_PRINT(ERR_DBG, | |
3889 | "%s: MSI-X requested but failed to enable\n", | |
3890 | dev->name); | |
3891 | sp->intr_type = INTA; | |
3892 | } | |
3893 | } | |
3894 | ||
c77dd43e SS |
3895 | /* NAPI doesn't work well with MSI(X) */ |
3896 | if (sp->intr_type != INTA) { | |
3897 | if(sp->config.napi) | |
3898 | sp->config.napi = 0; | |
3899 | } | |
3900 | ||
1da177e4 | 3901 | /* Initialize H/W and enable interrupts */ |
c92ca04b AR |
3902 | err = s2io_card_up(sp); |
3903 | if (err) { | |
1da177e4 LT |
3904 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3905 | dev->name); | |
e6a8fee2 | 3906 | goto hw_init_failed; |
1da177e4 LT |
3907 | } |
3908 | ||
3909 | if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) { | |
3910 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); | |
e6a8fee2 | 3911 | s2io_card_down(sp); |
20346722 | 3912 | err = -ENODEV; |
e6a8fee2 | 3913 | goto hw_init_failed; |
1da177e4 LT |
3914 | } |
3915 | ||
3916 | netif_start_queue(dev); | |
3917 | return 0; | |
20346722 | 3918 | |
20346722 | 3919 | hw_init_failed: |
bea3348e | 3920 | napi_disable(&sp->napi); |
cc6e7c44 | 3921 | if (sp->intr_type == MSI_X) { |
491976b2 | 3922 | if (sp->entries) { |
cc6e7c44 | 3923 | kfree(sp->entries); |
491976b2 SH |
3924 | sp->mac_control.stats_info->sw_stat.mem_freed |
3925 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3926 | } | |
3927 | if (sp->s2io_entries) { | |
cc6e7c44 | 3928 | kfree(sp->s2io_entries); |
491976b2 SH |
3929 | sp->mac_control.stats_info->sw_stat.mem_freed |
3930 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3931 | } | |
cc6e7c44 | 3932 | } |
20346722 | 3933 | return err; |
1da177e4 LT |
3934 | } |
3935 | ||
3936 | /** | |
3937 | * s2io_close -close entry point of the driver | |
3938 | * @dev : device pointer. | |
3939 | * Description: | |
3940 | * This is the stop entry point of the driver. It needs to undo exactly | |
3941 | * whatever was done by the open entry point,thus it's usually referred to | |
3942 | * as the close function.Among other things this function mainly stops the | |
3943 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3944 | * Return value: | |
3945 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3946 | * file on failure. | |
3947 | */ | |
3948 | ||
ac1f60db | 3949 | static int s2io_close(struct net_device *dev) |
1da177e4 | 3950 | { |
1ee6dd77 | 3951 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 3952 | |
1da177e4 | 3953 | netif_stop_queue(dev); |
bea3348e | 3954 | napi_disable(&sp->napi); |
1da177e4 | 3955 | /* Reset card, kill tasklet and free Tx and Rx buffers. */ |
e6a8fee2 | 3956 | s2io_card_down(sp); |
cc6e7c44 | 3957 | |
1da177e4 LT |
3958 | return 0; |
3959 | } | |
3960 | ||
3961 | /** | |
3962 | * s2io_xmit - Tx entry point of te driver | |
3963 | * @skb : the socket buffer containing the Tx data. | |
3964 | * @dev : device pointer. | |
3965 | * Description : | |
3966 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
3967 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
3968 | * NOTE: when device cant queue the pkt,just the trans_start variable will | |
3969 | * not be upadted. | |
3970 | * Return value: | |
3971 | * 0 on success & 1 on failure. | |
3972 | */ | |
3973 | ||
ac1f60db | 3974 | static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 3975 | { |
1ee6dd77 | 3976 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3977 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
3978 | register u64 val64; | |
1ee6dd77 RB |
3979 | struct TxD *txdp; |
3980 | struct TxFIFO_element __iomem *tx_fifo; | |
1da177e4 | 3981 | unsigned long flags; |
be3a6b02 K |
3982 | u16 vlan_tag = 0; |
3983 | int vlan_priority = 0; | |
1ee6dd77 | 3984 | struct mac_info *mac_control; |
1da177e4 | 3985 | struct config_param *config; |
75c30b13 | 3986 | int offload_type; |
491abf25 | 3987 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
1da177e4 LT |
3988 | |
3989 | mac_control = &sp->mac_control; | |
3990 | config = &sp->config; | |
3991 | ||
20346722 | 3992 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
491976b2 SH |
3993 | |
3994 | if (unlikely(skb->len <= 0)) { | |
3995 | DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name); | |
3996 | dev_kfree_skb_any(skb); | |
3997 | return 0; | |
3998 | } | |
3999 | ||
1da177e4 | 4000 | spin_lock_irqsave(&sp->tx_lock, flags); |
1da177e4 | 4001 | if (atomic_read(&sp->card_state) == CARD_DOWN) { |
20346722 | 4002 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 LT |
4003 | dev->name); |
4004 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
20346722 K |
4005 | dev_kfree_skb(skb); |
4006 | return 0; | |
1da177e4 LT |
4007 | } |
4008 | ||
4009 | queue = 0; | |
be3a6b02 K |
4010 | /* Get Fifo number to Transmit based on vlan priority */ |
4011 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { | |
4012 | vlan_tag = vlan_tx_tag_get(skb); | |
4013 | vlan_priority = vlan_tag >> 13; | |
4014 | queue = config->fifo_mapping[vlan_priority]; | |
4015 | } | |
4016 | ||
20346722 K |
4017 | put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset; |
4018 | get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset; | |
1ee6dd77 | 4019 | txdp = (struct TxD *) mac_control->fifos[queue].list_info[put_off]. |
20346722 K |
4020 | list_virt_addr; |
4021 | ||
4022 | queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1; | |
1da177e4 | 4023 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 AR |
4024 | if (txdp->Host_Control || |
4025 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { | |
776bd20f | 4026 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
1da177e4 LT |
4027 | netif_stop_queue(dev); |
4028 | dev_kfree_skb(skb); | |
4029 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
4030 | return 0; | |
4031 | } | |
0b1f7ebe | 4032 | |
75c30b13 | 4033 | offload_type = s2io_offload_type(skb); |
75c30b13 | 4034 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 4035 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 4036 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 4037 | } |
84fa7933 | 4038 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
4039 | txdp->Control_2 |= |
4040 | (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN | | |
4041 | TXD_TX_CKO_UDP_EN); | |
4042 | } | |
fed5eccd AR |
4043 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
4044 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
1da177e4 | 4045 | txdp->Control_2 |= config->tx_intr_type; |
d8892c6e | 4046 | |
be3a6b02 K |
4047 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { |
4048 | txdp->Control_2 |= TXD_VLAN_ENABLE; | |
4049 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
4050 | } | |
4051 | ||
fed5eccd | 4052 | frg_len = skb->len - skb->data_len; |
75c30b13 | 4053 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
4054 | int ufo_size; |
4055 | ||
75c30b13 | 4056 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
4057 | ufo_size &= ~7; |
4058 | txdp->Control_1 |= TXD_UFO_EN; | |
4059 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
4060 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
4061 | #ifdef __BIG_ENDIAN | |
4062 | sp->ufo_in_band_v[put_off] = | |
4063 | (u64)skb_shinfo(skb)->ip6_frag_id; | |
4064 | #else | |
4065 | sp->ufo_in_band_v[put_off] = | |
4066 | (u64)skb_shinfo(skb)->ip6_frag_id << 32; | |
4067 | #endif | |
4068 | txdp->Host_Control = (unsigned long)sp->ufo_in_band_v; | |
4069 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, | |
4070 | sp->ufo_in_band_v, | |
4071 | sizeof(u64), PCI_DMA_TODEVICE); | |
491abf25 VP |
4072 | if((txdp->Buffer_Pointer == 0) || |
4073 | (txdp->Buffer_Pointer == DMA_ERROR_CODE)) | |
4074 | goto pci_map_failed; | |
fed5eccd | 4075 | txdp++; |
fed5eccd | 4076 | } |
1da177e4 | 4077 | |
fed5eccd AR |
4078 | txdp->Buffer_Pointer = pci_map_single |
4079 | (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); | |
491abf25 VP |
4080 | if((txdp->Buffer_Pointer == 0) || |
4081 | (txdp->Buffer_Pointer == DMA_ERROR_CODE)) | |
4082 | goto pci_map_failed; | |
4083 | ||
fed5eccd AR |
4084 | txdp->Host_Control = (unsigned long) skb; |
4085 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); | |
75c30b13 | 4086 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4087 | txdp->Control_1 |= TXD_UFO_EN; |
4088 | ||
4089 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
4090 | /* For fragmented SKB. */ |
4091 | for (i = 0; i < frg_cnt; i++) { | |
4092 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe K |
4093 | /* A '0' length fragment will be ignored */ |
4094 | if (!frag->size) | |
4095 | continue; | |
1da177e4 LT |
4096 | txdp++; |
4097 | txdp->Buffer_Pointer = (u64) pci_map_page | |
4098 | (sp->pdev, frag->page, frag->page_offset, | |
4099 | frag->size, PCI_DMA_TODEVICE); | |
efd51b5c | 4100 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 4101 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 4102 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
4103 | } |
4104 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
4105 | ||
75c30b13 | 4106 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4107 | frg_cnt++; /* as Txd0 was used for inband header */ |
4108 | ||
1da177e4 | 4109 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
20346722 | 4110 | val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr; |
1da177e4 LT |
4111 | writeq(val64, &tx_fifo->TxDL_Pointer); |
4112 | ||
4113 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
4114 | TX_FIFO_LAST_LIST); | |
75c30b13 | 4115 | if (offload_type) |
fed5eccd | 4116 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 4117 | |
1da177e4 LT |
4118 | writeq(val64, &tx_fifo->List_Control); |
4119 | ||
303bcb4b K |
4120 | mmiowb(); |
4121 | ||
1da177e4 | 4122 | put_off++; |
863c11a9 AR |
4123 | if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1) |
4124 | put_off = 0; | |
20346722 | 4125 | mac_control->fifos[queue].tx_curr_put_info.offset = put_off; |
1da177e4 LT |
4126 | |
4127 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 4128 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
bd1034f0 | 4129 | sp->mac_control.stats_info->sw_stat.fifo_full_cnt++; |
1da177e4 LT |
4130 | DBG_PRINT(TX_DBG, |
4131 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
4132 | put_off, get_off); | |
4133 | netif_stop_queue(dev); | |
4134 | } | |
491976b2 | 4135 | mac_control->stats_info->sw_stat.mem_allocated += skb->truesize; |
1da177e4 LT |
4136 | dev->trans_start = jiffies; |
4137 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
4138 | ||
491abf25 VP |
4139 | return 0; |
4140 | pci_map_failed: | |
4141 | stats->pci_map_fail_cnt++; | |
4142 | netif_stop_queue(dev); | |
4143 | stats->mem_freed += skb->truesize; | |
4144 | dev_kfree_skb(skb); | |
4145 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
1da177e4 LT |
4146 | return 0; |
4147 | } | |
4148 | ||
25fff88e K |
4149 | static void |
4150 | s2io_alarm_handle(unsigned long data) | |
4151 | { | |
1ee6dd77 | 4152 | struct s2io_nic *sp = (struct s2io_nic *)data; |
25fff88e K |
4153 | |
4154 | alarm_intr_handler(sp); | |
4155 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); | |
4156 | } | |
4157 | ||
1ee6dd77 | 4158 | static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) |
75c30b13 AR |
4159 | { |
4160 | int rxb_size, level; | |
4161 | ||
4162 | if (!sp->lro) { | |
4163 | rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); | |
4164 | level = rx_buffer_level(sp, rxb_size, rng_n); | |
4165 | ||
4166 | if ((level == PANIC) && (!TASKLET_IN_USE)) { | |
4167 | int ret; | |
4168 | DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); | |
4169 | DBG_PRINT(INTR_DBG, "PANIC levels\n"); | |
4170 | if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { | |
0c61ed5f | 4171 | DBG_PRINT(INFO_DBG, "Out of memory in %s", |
75c30b13 AR |
4172 | __FUNCTION__); |
4173 | clear_bit(0, (&sp->tasklet_status)); | |
4174 | return -1; | |
4175 | } | |
4176 | clear_bit(0, (&sp->tasklet_status)); | |
4177 | } else if (level == LOW) | |
4178 | tasklet_schedule(&sp->task); | |
4179 | ||
4180 | } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { | |
0c61ed5f RV |
4181 | DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name); |
4182 | DBG_PRINT(INFO_DBG, " in Rx Intr!!\n"); | |
75c30b13 AR |
4183 | } |
4184 | return 0; | |
4185 | } | |
4186 | ||
7d12e780 | 4187 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4188 | { |
1ee6dd77 RB |
4189 | struct ring_info *ring = (struct ring_info *)dev_id; |
4190 | struct s2io_nic *sp = ring->nic; | |
cc6e7c44 RA |
4191 | |
4192 | atomic_inc(&sp->isr_cnt); | |
cc6e7c44 | 4193 | |
75c30b13 AR |
4194 | rx_intr_handler(ring); |
4195 | s2io_chk_rx_buffers(sp, ring->ring_no); | |
7d3d0439 | 4196 | |
cc6e7c44 | 4197 | atomic_dec(&sp->isr_cnt); |
cc6e7c44 RA |
4198 | return IRQ_HANDLED; |
4199 | } | |
4200 | ||
7d12e780 | 4201 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4202 | { |
1ee6dd77 RB |
4203 | struct fifo_info *fifo = (struct fifo_info *)dev_id; |
4204 | struct s2io_nic *sp = fifo->nic; | |
cc6e7c44 RA |
4205 | |
4206 | atomic_inc(&sp->isr_cnt); | |
4207 | tx_intr_handler(fifo); | |
4208 | atomic_dec(&sp->isr_cnt); | |
4209 | return IRQ_HANDLED; | |
4210 | } | |
1ee6dd77 | 4211 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4212 | { |
1ee6dd77 | 4213 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d K |
4214 | u64 val64; |
4215 | ||
4216 | val64 = readq(&bar0->pic_int_status); | |
4217 | if (val64 & PIC_INT_GPIO) { | |
4218 | val64 = readq(&bar0->gpio_int_reg); | |
4219 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4220 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4221 | /* |
4222 | * This is unstable state so clear both up/down | |
4223 | * interrupt and adapter to re-evaluate the link state. | |
4224 | */ | |
a371a07d K |
4225 | val64 |= GPIO_INT_REG_LINK_DOWN; |
4226 | val64 |= GPIO_INT_REG_LINK_UP; | |
4227 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4228 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4229 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4230 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4231 | writeq(val64, &bar0->gpio_int_mask); |
a371a07d | 4232 | } |
c92ca04b AR |
4233 | else if (val64 & GPIO_INT_REG_LINK_UP) { |
4234 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 4235 | /* Enable Adapter */ |
19a60522 SS |
4236 | val64 = readq(&bar0->adapter_control); |
4237 | val64 |= ADAPTER_CNTL_EN; | |
4238 | writeq(val64, &bar0->adapter_control); | |
4239 | val64 |= ADAPTER_LED_ON; | |
4240 | writeq(val64, &bar0->adapter_control); | |
4241 | if (!sp->device_enabled_once) | |
4242 | sp->device_enabled_once = 1; | |
c92ca04b | 4243 | |
19a60522 SS |
4244 | s2io_link(sp, LINK_UP); |
4245 | /* | |
4246 | * unmask link down interrupt and mask link-up | |
4247 | * intr | |
4248 | */ | |
4249 | val64 = readq(&bar0->gpio_int_mask); | |
4250 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4251 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4252 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4253 | |
c92ca04b AR |
4254 | }else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
4255 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
4256 | s2io_link(sp, LINK_DOWN); |
4257 | /* Link is down so unmaks link up interrupt */ | |
4258 | val64 = readq(&bar0->gpio_int_mask); | |
4259 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4260 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4261 | writeq(val64, &bar0->gpio_int_mask); | |
ac1f90d6 SS |
4262 | |
4263 | /* turn off LED */ | |
4264 | val64 = readq(&bar0->adapter_control); | |
4265 | val64 = val64 &(~ADAPTER_LED_ON); | |
4266 | writeq(val64, &bar0->adapter_control); | |
a371a07d K |
4267 | } |
4268 | } | |
c92ca04b | 4269 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d K |
4270 | } |
4271 | ||
1da177e4 LT |
4272 | /** |
4273 | * s2io_isr - ISR handler of the device . | |
4274 | * @irq: the irq of the device. | |
4275 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 K |
4276 | * Description: This function is the ISR handler of the device. It |
4277 | * identifies the reason for the interrupt and calls the relevant | |
4278 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4279 | * recv buffers, if their numbers are below the panic value which is |
4280 | * presently set to 25% of the original number of rcv buffers allocated. | |
4281 | * Return value: | |
20346722 | 4282 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4283 | * IRQ_NONE: will be returned if interrupt is not from our device |
4284 | */ | |
7d12e780 | 4285 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 LT |
4286 | { |
4287 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 RB |
4288 | struct s2io_nic *sp = dev->priv; |
4289 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
20346722 | 4290 | int i; |
19a60522 | 4291 | u64 reason = 0; |
1ee6dd77 | 4292 | struct mac_info *mac_control; |
1da177e4 LT |
4293 | struct config_param *config; |
4294 | ||
d796fdb7 LV |
4295 | /* Pretend we handled any irq's from a disconnected card */ |
4296 | if (pci_channel_offline(sp->pdev)) | |
4297 | return IRQ_NONE; | |
4298 | ||
7ba013ac | 4299 | atomic_inc(&sp->isr_cnt); |
1da177e4 LT |
4300 | mac_control = &sp->mac_control; |
4301 | config = &sp->config; | |
4302 | ||
20346722 | 4303 | /* |
1da177e4 LT |
4304 | * Identify the cause for interrupt and call the appropriate |
4305 | * interrupt handler. Causes for the interrupt could be; | |
4306 | * 1. Rx of packet. | |
4307 | * 2. Tx complete. | |
4308 | * 3. Link down. | |
20346722 | 4309 | * 4. Error in any functional blocks of the NIC. |
1da177e4 LT |
4310 | */ |
4311 | reason = readq(&bar0->general_int_status); | |
4312 | ||
4313 | if (!reason) { | |
19a60522 SS |
4314 | /* The interrupt was not raised by us. */ |
4315 | atomic_dec(&sp->isr_cnt); | |
4316 | return IRQ_NONE; | |
4317 | } | |
4318 | else if (unlikely(reason == S2IO_MINUS_ONE) ) { | |
4319 | /* Disable device and get out */ | |
7ba013ac | 4320 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4321 | return IRQ_NONE; |
4322 | } | |
5d3213cc | 4323 | |
db874e65 SS |
4324 | if (napi) { |
4325 | if (reason & GEN_INTR_RXTRAFFIC) { | |
bea3348e SH |
4326 | if (likely (netif_rx_schedule_prep(dev, &sp->napi))) { |
4327 | __netif_rx_schedule(dev, &sp->napi); | |
19a60522 | 4328 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask); |
db874e65 | 4329 | } |
19a60522 SS |
4330 | else |
4331 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
db874e65 SS |
4332 | } |
4333 | } else { | |
4334 | /* | |
4335 | * Rx handler is called by default, without checking for the | |
4336 | * cause of interrupt. | |
4337 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4338 | * will ensure that the actual interrupt causing bit get's | |
4339 | * cleared and hence a read can be avoided. | |
4340 | */ | |
19a60522 SS |
4341 | if (reason & GEN_INTR_RXTRAFFIC) |
4342 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
4343 | ||
db874e65 SS |
4344 | for (i = 0; i < config->rx_ring_num; i++) { |
4345 | rx_intr_handler(&mac_control->rings[i]); | |
1da177e4 LT |
4346 | } |
4347 | } | |
1da177e4 | 4348 | |
863c11a9 AR |
4349 | /* |
4350 | * tx_traffic_int reg is an R1 register, writing all 1's | |
4351 | * will ensure that the actual interrupt causing bit get's | |
4352 | * cleared and hence a read can be avoided. | |
4353 | */ | |
19a60522 SS |
4354 | if (reason & GEN_INTR_TXTRAFFIC) |
4355 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
fe113638 | 4356 | |
863c11a9 AR |
4357 | for (i = 0; i < config->tx_fifo_num; i++) |
4358 | tx_intr_handler(&mac_control->fifos[i]); | |
20346722 | 4359 | |
a371a07d K |
4360 | if (reason & GEN_INTR_TXPIC) |
4361 | s2io_txpic_intr_handle(sp); | |
20346722 K |
4362 | /* |
4363 | * If the Rx buffer count is below the panic threshold then | |
4364 | * reallocate the buffers from the interrupt handler itself, | |
1da177e4 LT |
4365 | * else schedule a tasklet to reallocate the buffers. |
4366 | */ | |
db874e65 SS |
4367 | if (!napi) { |
4368 | for (i = 0; i < config->rx_ring_num; i++) | |
4369 | s2io_chk_rx_buffers(sp, i); | |
4370 | } | |
4371 | ||
4372 | writeq(0, &bar0->general_int_mask); | |
4373 | readl(&bar0->general_int_status); | |
4374 | ||
7ba013ac | 4375 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4376 | return IRQ_HANDLED; |
4377 | } | |
4378 | ||
7ba013ac K |
4379 | /** |
4380 | * s2io_updt_stats - | |
4381 | */ | |
1ee6dd77 | 4382 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4383 | { |
1ee6dd77 | 4384 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac K |
4385 | u64 val64; |
4386 | int cnt = 0; | |
4387 | ||
4388 | if (atomic_read(&sp->card_state) == CARD_UP) { | |
4389 | /* Apprx 30us on a 133 MHz bus */ | |
4390 | val64 = SET_UPDT_CLICKS(10) | | |
4391 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4392 | writeq(val64, &bar0->stat_cfg); | |
4393 | do { | |
4394 | udelay(100); | |
4395 | val64 = readq(&bar0->stat_cfg); | |
4396 | if (!(val64 & BIT(0))) | |
4397 | break; | |
4398 | cnt++; | |
4399 | if (cnt == 5) | |
4400 | break; /* Updt failed */ | |
4401 | } while(1); | |
363dc367 | 4402 | } |
7ba013ac K |
4403 | } |
4404 | ||
1da177e4 | 4405 | /** |
20346722 | 4406 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4407 | * @dev : pointer to the device structure. |
4408 | * Description: | |
20346722 | 4409 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4410 | * structure and returns a pointer to the same. |
4411 | * Return value: | |
4412 | * pointer to the updated net_device_stats structure. | |
4413 | */ | |
4414 | ||
ac1f60db | 4415 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4416 | { |
1ee6dd77 RB |
4417 | struct s2io_nic *sp = dev->priv; |
4418 | struct mac_info *mac_control; | |
1da177e4 LT |
4419 | struct config_param *config; |
4420 | ||
20346722 | 4421 | |
1da177e4 LT |
4422 | mac_control = &sp->mac_control; |
4423 | config = &sp->config; | |
4424 | ||
7ba013ac K |
4425 | /* Configure Stats for immediate updt */ |
4426 | s2io_updt_stats(sp); | |
4427 | ||
4428 | sp->stats.tx_packets = | |
4429 | le32_to_cpu(mac_control->stats_info->tmac_frms); | |
20346722 K |
4430 | sp->stats.tx_errors = |
4431 | le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); | |
4432 | sp->stats.rx_errors = | |
ee705dba | 4433 | le64_to_cpu(mac_control->stats_info->rmac_drop_frms); |
20346722 K |
4434 | sp->stats.multicast = |
4435 | le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); | |
1da177e4 | 4436 | sp->stats.rx_length_errors = |
ee705dba | 4437 | le64_to_cpu(mac_control->stats_info->rmac_long_frms); |
1da177e4 LT |
4438 | |
4439 | return (&sp->stats); | |
4440 | } | |
4441 | ||
4442 | /** | |
4443 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4444 | * @dev : pointer to the device structure | |
4445 | * Description: | |
20346722 K |
4446 | * This function is a driver entry point which gets called by the kernel |
4447 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4448 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4449 | * determine, if multicast address must be enabled or if promiscuous mode | |
4450 | * is to be disabled etc. | |
4451 | * Return value: | |
4452 | * void. | |
4453 | */ | |
4454 | ||
4455 | static void s2io_set_multicast(struct net_device *dev) | |
4456 | { | |
4457 | int i, j, prev_cnt; | |
4458 | struct dev_mc_list *mclist; | |
1ee6dd77 RB |
4459 | struct s2io_nic *sp = dev->priv; |
4460 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4461 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
4462 | 0xfeffffffffffULL; | |
4463 | u64 dis_addr = 0xffffffffffffULL, mac_addr = 0; | |
4464 | void __iomem *add; | |
4465 | ||
4466 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4467 | /* Enable all Multicast addresses */ | |
4468 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4469 | &bar0->rmac_addr_data0_mem); | |
4470 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4471 | &bar0->rmac_addr_data1_mem); | |
4472 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
4473 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4474 | RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET); | |
4475 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4476 | /* Wait till command completes */ | |
c92ca04b | 4477 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4478 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4479 | S2IO_BIT_RESET); | |
1da177e4 LT |
4480 | |
4481 | sp->m_cast_flg = 1; | |
4482 | sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET; | |
4483 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { | |
4484 | /* Disable all Multicast addresses */ | |
4485 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4486 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd K |
4487 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4488 | &bar0->rmac_addr_data1_mem); | |
1da177e4 LT |
4489 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4490 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4491 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
4492 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4493 | /* Wait till command completes */ | |
c92ca04b | 4494 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4495 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4496 | S2IO_BIT_RESET); | |
1da177e4 LT |
4497 | |
4498 | sp->m_cast_flg = 0; | |
4499 | sp->all_multi_pos = 0; | |
4500 | } | |
4501 | ||
4502 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4503 | /* Put the NIC into promiscuous mode */ | |
4504 | add = &bar0->mac_cfg; | |
4505 | val64 = readq(&bar0->mac_cfg); | |
4506 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4507 | ||
4508 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4509 | writel((u32) val64, add); | |
4510 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4511 | writel((u32) (val64 >> 32), (add + 4)); | |
4512 | ||
926930b2 SS |
4513 | if (vlan_tag_strip != 1) { |
4514 | val64 = readq(&bar0->rx_pa_cfg); | |
4515 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
4516 | writeq(val64, &bar0->rx_pa_cfg); | |
4517 | vlan_strip_flag = 0; | |
4518 | } | |
4519 | ||
1da177e4 LT |
4520 | val64 = readq(&bar0->mac_cfg); |
4521 | sp->promisc_flg = 1; | |
776bd20f | 4522 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
4523 | dev->name); |
4524 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
4525 | /* Remove the NIC from promiscuous mode */ | |
4526 | add = &bar0->mac_cfg; | |
4527 | val64 = readq(&bar0->mac_cfg); | |
4528 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
4529 | ||
4530 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4531 | writel((u32) val64, add); | |
4532 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4533 | writel((u32) (val64 >> 32), (add + 4)); | |
4534 | ||
926930b2 SS |
4535 | if (vlan_tag_strip != 0) { |
4536 | val64 = readq(&bar0->rx_pa_cfg); | |
4537 | val64 |= RX_PA_CFG_STRIP_VLAN_TAG; | |
4538 | writeq(val64, &bar0->rx_pa_cfg); | |
4539 | vlan_strip_flag = 1; | |
4540 | } | |
4541 | ||
1da177e4 LT |
4542 | val64 = readq(&bar0->mac_cfg); |
4543 | sp->promisc_flg = 0; | |
776bd20f | 4544 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", |
1da177e4 LT |
4545 | dev->name); |
4546 | } | |
4547 | ||
4548 | /* Update individual M_CAST address list */ | |
4549 | if ((!sp->m_cast_flg) && dev->mc_count) { | |
4550 | if (dev->mc_count > | |
4551 | (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) { | |
4552 | DBG_PRINT(ERR_DBG, "%s: No more Rx filters ", | |
4553 | dev->name); | |
4554 | DBG_PRINT(ERR_DBG, "can be added, please enable "); | |
4555 | DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n"); | |
4556 | return; | |
4557 | } | |
4558 | ||
4559 | prev_cnt = sp->mc_addr_count; | |
4560 | sp->mc_addr_count = dev->mc_count; | |
4561 | ||
4562 | /* Clear out the previous list of Mc in the H/W. */ | |
4563 | for (i = 0; i < prev_cnt; i++) { | |
4564 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4565 | &bar0->rmac_addr_data0_mem); | |
4566 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4567 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4568 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4569 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4570 | RMAC_ADDR_CMD_MEM_OFFSET | |
4571 | (MAC_MC_ADDR_START_OFFSET + i); | |
4572 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4573 | ||
4574 | /* Wait for command completes */ | |
c92ca04b | 4575 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4576 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4577 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4578 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4579 | dev->name); | |
4580 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4581 | return; | |
4582 | } | |
4583 | } | |
4584 | ||
4585 | /* Create the new Rx filter list and update the same in H/W. */ | |
4586 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
4587 | i++, mclist = mclist->next) { | |
4588 | memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr, | |
4589 | ETH_ALEN); | |
a7a80d5a | 4590 | mac_addr = 0; |
1da177e4 LT |
4591 | for (j = 0; j < ETH_ALEN; j++) { |
4592 | mac_addr |= mclist->dmi_addr[j]; | |
4593 | mac_addr <<= 8; | |
4594 | } | |
4595 | mac_addr >>= 8; | |
4596 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4597 | &bar0->rmac_addr_data0_mem); | |
4598 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4599 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4600 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4601 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4602 | RMAC_ADDR_CMD_MEM_OFFSET | |
4603 | (i + MAC_MC_ADDR_START_OFFSET); | |
4604 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4605 | ||
4606 | /* Wait for command completes */ | |
c92ca04b | 4607 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4608 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4609 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4610 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4611 | dev->name); | |
4612 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4613 | return; | |
4614 | } | |
4615 | } | |
4616 | } | |
4617 | } | |
4618 | ||
4619 | /** | |
20346722 | 4620 | * s2io_set_mac_addr - Programs the Xframe mac address |
1da177e4 LT |
4621 | * @dev : pointer to the device structure. |
4622 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 4623 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 4624 | * frames with new Mac Address |
20346722 | 4625 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
4626 | * as defined in errno.h file on failure. |
4627 | */ | |
4628 | ||
26df54bf | 4629 | static int s2io_set_mac_addr(struct net_device *dev, u8 * addr) |
1da177e4 | 4630 | { |
1ee6dd77 RB |
4631 | struct s2io_nic *sp = dev->priv; |
4632 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4633 | register u64 val64, mac_addr = 0; |
4634 | int i; | |
d8d70caf | 4635 | u64 old_mac_addr = 0; |
1da177e4 | 4636 | |
20346722 | 4637 | /* |
1da177e4 LT |
4638 | * Set the new MAC address as the new unicast filter and reflect this |
4639 | * change on the device address registered with the OS. It will be | |
20346722 | 4640 | * at offset 0. |
1da177e4 LT |
4641 | */ |
4642 | for (i = 0; i < ETH_ALEN; i++) { | |
4643 | mac_addr <<= 8; | |
4644 | mac_addr |= addr[i]; | |
d8d70caf SS |
4645 | old_mac_addr <<= 8; |
4646 | old_mac_addr |= sp->def_mac_addr[0].mac_addr[i]; | |
4647 | } | |
4648 | ||
4649 | if(0 == mac_addr) | |
4650 | return SUCCESS; | |
4651 | ||
4652 | /* Update the internal structure with this new mac address */ | |
4653 | if(mac_addr != old_mac_addr) { | |
4654 | memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN)); | |
4655 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_addr); | |
4656 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_addr >> 8); | |
4657 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_addr >> 16); | |
4658 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_addr >> 24); | |
4659 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_addr >> 32); | |
4660 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_addr >> 40); | |
1da177e4 LT |
4661 | } |
4662 | ||
4663 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4664 | &bar0->rmac_addr_data0_mem); | |
4665 | ||
4666 | val64 = | |
4667 | RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4668 | RMAC_ADDR_CMD_MEM_OFFSET(0); | |
4669 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4670 | /* Wait till command completes */ | |
c92ca04b | 4671 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 | 4672 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET)) { |
1da177e4 LT |
4673 | DBG_PRINT(ERR_DBG, "%s: set_mac_addr failed\n", dev->name); |
4674 | return FAILURE; | |
4675 | } | |
4676 | ||
4677 | return SUCCESS; | |
4678 | } | |
4679 | ||
4680 | /** | |
20346722 | 4681 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
4682 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
4683 | * @info: pointer to the structure with parameters given by ethtool to set | |
4684 | * link information. | |
4685 | * Description: | |
20346722 | 4686 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
4687 | * the NIC. |
4688 | * Return value: | |
4689 | * 0 on success. | |
4690 | */ | |
4691 | ||
4692 | static int s2io_ethtool_sset(struct net_device *dev, | |
4693 | struct ethtool_cmd *info) | |
4694 | { | |
1ee6dd77 | 4695 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4696 | if ((info->autoneg == AUTONEG_ENABLE) || |
4697 | (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL)) | |
4698 | return -EINVAL; | |
4699 | else { | |
4700 | s2io_close(sp->dev); | |
4701 | s2io_open(sp->dev); | |
4702 | } | |
4703 | ||
4704 | return 0; | |
4705 | } | |
4706 | ||
4707 | /** | |
20346722 | 4708 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
4709 | * @sp : private member of the device structure, pointer to the |
4710 | * s2io_nic structure. | |
4711 | * @info : pointer to the structure with parameters given by ethtool | |
4712 | * to return link information. | |
4713 | * Description: | |
4714 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
4715 | * Return value : | |
4716 | * return 0 on success. | |
4717 | */ | |
4718 | ||
4719 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
4720 | { | |
1ee6dd77 | 4721 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4722 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
4723 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
4724 | info->port = PORT_FIBRE; | |
4725 | /* info->transceiver?? TODO */ | |
4726 | ||
4727 | if (netif_carrier_ok(sp->dev)) { | |
4728 | info->speed = 10000; | |
4729 | info->duplex = DUPLEX_FULL; | |
4730 | } else { | |
4731 | info->speed = -1; | |
4732 | info->duplex = -1; | |
4733 | } | |
4734 | ||
4735 | info->autoneg = AUTONEG_DISABLE; | |
4736 | return 0; | |
4737 | } | |
4738 | ||
4739 | /** | |
20346722 K |
4740 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
4741 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
4742 | * s2io_nic structure. |
4743 | * @info : pointer to the structure with parameters given by ethtool to | |
4744 | * return driver information. | |
4745 | * Description: | |
4746 | * Returns driver specefic information like name, version etc.. to ethtool. | |
4747 | * Return value: | |
4748 | * void | |
4749 | */ | |
4750 | ||
4751 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
4752 | struct ethtool_drvinfo *info) | |
4753 | { | |
1ee6dd77 | 4754 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 4755 | |
dbc2309d JL |
4756 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
4757 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
4758 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
4759 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
4760 | info->regdump_len = XENA_REG_SPACE; |
4761 | info->eedump_len = XENA_EEPROM_SPACE; | |
4762 | info->testinfo_len = S2IO_TEST_LEN; | |
fa1f0cb3 SS |
4763 | |
4764 | if (sp->device_type == XFRAME_I_DEVICE) | |
4765 | info->n_stats = XFRAME_I_STAT_LEN; | |
4766 | else | |
4767 | info->n_stats = XFRAME_II_STAT_LEN; | |
1da177e4 LT |
4768 | } |
4769 | ||
4770 | /** | |
4771 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 4772 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 4773 | * s2io_nic structure. |
20346722 | 4774 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
4775 | * dumping the registers. |
4776 | * @reg_space: The input argumnet into which all the registers are dumped. | |
4777 | * Description: | |
4778 | * Dumps the entire register space of xFrame NIC into the user given | |
4779 | * buffer area. | |
4780 | * Return value : | |
4781 | * void . | |
4782 | */ | |
4783 | ||
4784 | static void s2io_ethtool_gregs(struct net_device *dev, | |
4785 | struct ethtool_regs *regs, void *space) | |
4786 | { | |
4787 | int i; | |
4788 | u64 reg; | |
4789 | u8 *reg_space = (u8 *) space; | |
1ee6dd77 | 4790 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4791 | |
4792 | regs->len = XENA_REG_SPACE; | |
4793 | regs->version = sp->pdev->subsystem_device; | |
4794 | ||
4795 | for (i = 0; i < regs->len; i += 8) { | |
4796 | reg = readq(sp->bar0 + i); | |
4797 | memcpy((reg_space + i), ®, 8); | |
4798 | } | |
4799 | } | |
4800 | ||
4801 | /** | |
4802 | * s2io_phy_id - timer function that alternates adapter LED. | |
20346722 | 4803 | * @data : address of the private member of the device structure, which |
1da177e4 | 4804 | * is a pointer to the s2io_nic structure, provided as an u32. |
20346722 K |
4805 | * Description: This is actually the timer function that alternates the |
4806 | * adapter LED bit of the adapter control bit to set/reset every time on | |
4807 | * invocation. The timer is set for 1/2 a second, hence tha NIC blinks | |
1da177e4 LT |
4808 | * once every second. |
4809 | */ | |
4810 | static void s2io_phy_id(unsigned long data) | |
4811 | { | |
1ee6dd77 RB |
4812 | struct s2io_nic *sp = (struct s2io_nic *) data; |
4813 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4814 | u64 val64 = 0; |
4815 | u16 subid; | |
4816 | ||
4817 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
4818 | if ((sp->device_type == XFRAME_II_DEVICE) || |
4819 | ((subid & 0xFF) >= 0x07)) { | |
1da177e4 LT |
4820 | val64 = readq(&bar0->gpio_control); |
4821 | val64 ^= GPIO_CTRL_GPIO_0; | |
4822 | writeq(val64, &bar0->gpio_control); | |
4823 | } else { | |
4824 | val64 = readq(&bar0->adapter_control); | |
4825 | val64 ^= ADAPTER_LED_ON; | |
4826 | writeq(val64, &bar0->adapter_control); | |
4827 | } | |
4828 | ||
4829 | mod_timer(&sp->id_timer, jiffies + HZ / 2); | |
4830 | } | |
4831 | ||
4832 | /** | |
4833 | * s2io_ethtool_idnic - To physically identify the nic on the system. | |
4834 | * @sp : private member of the device structure, which is a pointer to the | |
4835 | * s2io_nic structure. | |
20346722 | 4836 | * @id : pointer to the structure with identification parameters given by |
1da177e4 LT |
4837 | * ethtool. |
4838 | * Description: Used to physically identify the NIC on the system. | |
20346722 | 4839 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 4840 | * identification. |
20346722 | 4841 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 LT |
4842 | * identification is possible only if it's link is up. |
4843 | * Return value: | |
4844 | * int , returns 0 on success | |
4845 | */ | |
4846 | ||
4847 | static int s2io_ethtool_idnic(struct net_device *dev, u32 data) | |
4848 | { | |
4849 | u64 val64 = 0, last_gpio_ctrl_val; | |
1ee6dd77 RB |
4850 | struct s2io_nic *sp = dev->priv; |
4851 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4852 | u16 subid; |
4853 | ||
4854 | subid = sp->pdev->subsystem_device; | |
4855 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
541ae68f K |
4856 | if ((sp->device_type == XFRAME_I_DEVICE) && |
4857 | ((subid & 0xFF) < 0x07)) { | |
1da177e4 LT |
4858 | val64 = readq(&bar0->adapter_control); |
4859 | if (!(val64 & ADAPTER_CNTL_EN)) { | |
4860 | printk(KERN_ERR | |
4861 | "Adapter Link down, cannot blink LED\n"); | |
4862 | return -EFAULT; | |
4863 | } | |
4864 | } | |
4865 | if (sp->id_timer.function == NULL) { | |
4866 | init_timer(&sp->id_timer); | |
4867 | sp->id_timer.function = s2io_phy_id; | |
4868 | sp->id_timer.data = (unsigned long) sp; | |
4869 | } | |
4870 | mod_timer(&sp->id_timer, jiffies); | |
4871 | if (data) | |
20346722 | 4872 | msleep_interruptible(data * HZ); |
1da177e4 | 4873 | else |
20346722 | 4874 | msleep_interruptible(MAX_FLICKER_TIME); |
1da177e4 LT |
4875 | del_timer_sync(&sp->id_timer); |
4876 | ||
541ae68f | 4877 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) { |
1da177e4 LT |
4878 | writeq(last_gpio_ctrl_val, &bar0->gpio_control); |
4879 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
4880 | } | |
4881 | ||
4882 | return 0; | |
4883 | } | |
4884 | ||
0cec35eb SH |
4885 | static void s2io_ethtool_gringparam(struct net_device *dev, |
4886 | struct ethtool_ringparam *ering) | |
4887 | { | |
4888 | struct s2io_nic *sp = dev->priv; | |
4889 | int i,tx_desc_count=0,rx_desc_count=0; | |
4890 | ||
4891 | if (sp->rxd_mode == RXD_MODE_1) | |
4892 | ering->rx_max_pending = MAX_RX_DESC_1; | |
4893 | else if (sp->rxd_mode == RXD_MODE_3B) | |
4894 | ering->rx_max_pending = MAX_RX_DESC_2; | |
0cec35eb SH |
4895 | |
4896 | ering->tx_max_pending = MAX_TX_DESC; | |
b6627672 | 4897 | for (i = 0 ; i < sp->config.tx_fifo_num ; i++) |
0cec35eb | 4898 | tx_desc_count += sp->config.tx_cfg[i].fifo_len; |
b6627672 | 4899 | |
0cec35eb SH |
4900 | DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds); |
4901 | ering->tx_pending = tx_desc_count; | |
4902 | rx_desc_count = 0; | |
b6627672 | 4903 | for (i = 0 ; i < sp->config.rx_ring_num ; i++) |
0cec35eb | 4904 | rx_desc_count += sp->config.rx_cfg[i].num_rxd; |
b6627672 | 4905 | |
0cec35eb SH |
4906 | ering->rx_pending = rx_desc_count; |
4907 | ||
4908 | ering->rx_mini_max_pending = 0; | |
4909 | ering->rx_mini_pending = 0; | |
4910 | if(sp->rxd_mode == RXD_MODE_1) | |
4911 | ering->rx_jumbo_max_pending = MAX_RX_DESC_1; | |
4912 | else if (sp->rxd_mode == RXD_MODE_3B) | |
4913 | ering->rx_jumbo_max_pending = MAX_RX_DESC_2; | |
4914 | ering->rx_jumbo_pending = rx_desc_count; | |
4915 | } | |
4916 | ||
1da177e4 LT |
4917 | /** |
4918 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 K |
4919 | * @sp : private member of the device structure, which is a pointer to the |
4920 | * s2io_nic structure. | |
1da177e4 LT |
4921 | * @ep : pointer to the structure with pause parameters given by ethtool. |
4922 | * Description: | |
4923 | * Returns the Pause frame generation and reception capability of the NIC. | |
4924 | * Return value: | |
4925 | * void | |
4926 | */ | |
4927 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
4928 | struct ethtool_pauseparam *ep) | |
4929 | { | |
4930 | u64 val64; | |
1ee6dd77 RB |
4931 | struct s2io_nic *sp = dev->priv; |
4932 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4933 | |
4934 | val64 = readq(&bar0->rmac_pause_cfg); | |
4935 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
4936 | ep->tx_pause = TRUE; | |
4937 | if (val64 & RMAC_PAUSE_RX_ENABLE) | |
4938 | ep->rx_pause = TRUE; | |
4939 | ep->autoneg = FALSE; | |
4940 | } | |
4941 | ||
4942 | /** | |
4943 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 4944 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4945 | * s2io_nic structure. |
4946 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
4947 | * Description: | |
4948 | * It can be used to set or reset Pause frame generation or reception | |
4949 | * support of the NIC. | |
4950 | * Return value: | |
4951 | * int, returns 0 on Success | |
4952 | */ | |
4953 | ||
4954 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
20346722 | 4955 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
4956 | { |
4957 | u64 val64; | |
1ee6dd77 RB |
4958 | struct s2io_nic *sp = dev->priv; |
4959 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4960 | |
4961 | val64 = readq(&bar0->rmac_pause_cfg); | |
4962 | if (ep->tx_pause) | |
4963 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
4964 | else | |
4965 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
4966 | if (ep->rx_pause) | |
4967 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
4968 | else | |
4969 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
4970 | writeq(val64, &bar0->rmac_pause_cfg); | |
4971 | return 0; | |
4972 | } | |
4973 | ||
4974 | /** | |
4975 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 4976 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4977 | * s2io_nic structure. |
4978 | * @off : offset at which the data must be written | |
4979 | * @data : Its an output parameter where the data read at the given | |
20346722 | 4980 | * offset is stored. |
1da177e4 | 4981 | * Description: |
20346722 | 4982 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
4983 | * read data. |
4984 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
4985 | * I2C bus. | |
4986 | * Return value: | |
4987 | * -1 on failure and 0 on success. | |
4988 | */ | |
4989 | ||
4990 | #define S2IO_DEV_ID 5 | |
1ee6dd77 | 4991 | static int read_eeprom(struct s2io_nic * sp, int off, u64 * data) |
1da177e4 LT |
4992 | { |
4993 | int ret = -1; | |
4994 | u32 exit_cnt = 0; | |
4995 | u64 val64; | |
1ee6dd77 | 4996 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4997 | |
ad4ebed0 | 4998 | if (sp->device_type == XFRAME_I_DEVICE) { |
4999 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
5000 | I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ | | |
5001 | I2C_CONTROL_CNTL_START; | |
5002 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
1da177e4 | 5003 | |
ad4ebed0 | 5004 | while (exit_cnt < 5) { |
5005 | val64 = readq(&bar0->i2c_control); | |
5006 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5007 | *data = I2C_CONTROL_GET_DATA(val64); | |
5008 | ret = 0; | |
5009 | break; | |
5010 | } | |
5011 | msleep(50); | |
5012 | exit_cnt++; | |
1da177e4 | 5013 | } |
1da177e4 LT |
5014 | } |
5015 | ||
ad4ebed0 | 5016 | if (sp->device_type == XFRAME_II_DEVICE) { |
5017 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5018 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 5019 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
5020 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5021 | val64 |= SPI_CONTROL_REQ; | |
5022 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5023 | while (exit_cnt < 5) { | |
5024 | val64 = readq(&bar0->spi_control); | |
5025 | if (val64 & SPI_CONTROL_NACK) { | |
5026 | ret = 1; | |
5027 | break; | |
5028 | } else if (val64 & SPI_CONTROL_DONE) { | |
5029 | *data = readq(&bar0->spi_data); | |
5030 | *data &= 0xffffff; | |
5031 | ret = 0; | |
5032 | break; | |
5033 | } | |
5034 | msleep(50); | |
5035 | exit_cnt++; | |
5036 | } | |
5037 | } | |
1da177e4 LT |
5038 | return ret; |
5039 | } | |
5040 | ||
5041 | /** | |
5042 | * write_eeprom - actually writes the relevant part of the data value. | |
5043 | * @sp : private member of the device structure, which is a pointer to the | |
5044 | * s2io_nic structure. | |
5045 | * @off : offset at which the data must be written | |
5046 | * @data : The data that is to be written | |
20346722 | 5047 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
5048 | * the Eeprom. (max of 3) |
5049 | * Description: | |
5050 | * Actually writes the relevant part of the data value into the Eeprom | |
5051 | * through the I2C bus. | |
5052 | * Return value: | |
5053 | * 0 on success, -1 on failure. | |
5054 | */ | |
5055 | ||
1ee6dd77 | 5056 | static int write_eeprom(struct s2io_nic * sp, int off, u64 data, int cnt) |
1da177e4 LT |
5057 | { |
5058 | int exit_cnt = 0, ret = -1; | |
5059 | u64 val64; | |
1ee6dd77 | 5060 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5061 | |
ad4ebed0 | 5062 | if (sp->device_type == XFRAME_I_DEVICE) { |
5063 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
5064 | I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) | | |
5065 | I2C_CONTROL_CNTL_START; | |
5066 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
5067 | ||
5068 | while (exit_cnt < 5) { | |
5069 | val64 = readq(&bar0->i2c_control); | |
5070 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5071 | if (!(val64 & I2C_CONTROL_NACK)) | |
5072 | ret = 0; | |
5073 | break; | |
5074 | } | |
5075 | msleep(50); | |
5076 | exit_cnt++; | |
5077 | } | |
5078 | } | |
1da177e4 | 5079 | |
ad4ebed0 | 5080 | if (sp->device_type == XFRAME_II_DEVICE) { |
5081 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
5082 | writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data); | |
5083 | ||
5084 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5085 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 5086 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
5087 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5088 | val64 |= SPI_CONTROL_REQ; | |
5089 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5090 | while (exit_cnt < 5) { | |
5091 | val64 = readq(&bar0->spi_control); | |
5092 | if (val64 & SPI_CONTROL_NACK) { | |
5093 | ret = 1; | |
5094 | break; | |
5095 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 5096 | ret = 0; |
ad4ebed0 | 5097 | break; |
5098 | } | |
5099 | msleep(50); | |
5100 | exit_cnt++; | |
1da177e4 | 5101 | } |
1da177e4 | 5102 | } |
1da177e4 LT |
5103 | return ret; |
5104 | } | |
1ee6dd77 | 5105 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 5106 | { |
b41477f3 AR |
5107 | u8 *vpd_data; |
5108 | u8 data; | |
9dc737a7 AR |
5109 | int i=0, cnt, fail = 0; |
5110 | int vpd_addr = 0x80; | |
5111 | ||
5112 | if (nic->device_type == XFRAME_II_DEVICE) { | |
5113 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
5114 | vpd_addr = 0x80; | |
5115 | } | |
5116 | else { | |
5117 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); | |
5118 | vpd_addr = 0x50; | |
5119 | } | |
19a60522 | 5120 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 5121 | |
b41477f3 | 5122 | vpd_data = kmalloc(256, GFP_KERNEL); |
c53d4945 SH |
5123 | if (!vpd_data) { |
5124 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; | |
b41477f3 | 5125 | return; |
c53d4945 | 5126 | } |
491976b2 | 5127 | nic->mac_control.stats_info->sw_stat.mem_allocated += 256; |
b41477f3 | 5128 | |
9dc737a7 AR |
5129 | for (i = 0; i < 256; i +=4 ) { |
5130 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); | |
5131 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
5132 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
5133 | for (cnt = 0; cnt <5; cnt++) { | |
5134 | msleep(2); | |
5135 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
5136 | if (data == 0x80) | |
5137 | break; | |
5138 | } | |
5139 | if (cnt >= 5) { | |
5140 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
5141 | fail = 1; | |
5142 | break; | |
5143 | } | |
5144 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
5145 | (u32 *)&vpd_data[i]); | |
5146 | } | |
19a60522 SS |
5147 | |
5148 | if(!fail) { | |
5149 | /* read serial number of adapter */ | |
5150 | for (cnt = 0; cnt < 256; cnt++) { | |
5151 | if ((vpd_data[cnt] == 'S') && | |
5152 | (vpd_data[cnt+1] == 'N') && | |
5153 | (vpd_data[cnt+2] < VPD_STRING_LEN)) { | |
5154 | memset(nic->serial_num, 0, VPD_STRING_LEN); | |
5155 | memcpy(nic->serial_num, &vpd_data[cnt + 3], | |
5156 | vpd_data[cnt+2]); | |
5157 | break; | |
5158 | } | |
5159 | } | |
5160 | } | |
5161 | ||
5162 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { | |
9dc737a7 AR |
5163 | memset(nic->product_name, 0, vpd_data[1]); |
5164 | memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); | |
5165 | } | |
b41477f3 | 5166 | kfree(vpd_data); |
491976b2 | 5167 | nic->mac_control.stats_info->sw_stat.mem_freed += 256; |
9dc737a7 AR |
5168 | } |
5169 | ||
1da177e4 LT |
5170 | /** |
5171 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
5172 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 5173 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5174 | * containing all relevant information. |
5175 | * @data_buf : user defined value to be written into Eeprom. | |
5176 | * Description: Reads the values stored in the Eeprom at given offset | |
5177 | * for a given length. Stores these values int the input argument data | |
5178 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
5179 | * Return value: | |
5180 | * int 0 on success | |
5181 | */ | |
5182 | ||
5183 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
20346722 | 5184 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 5185 | { |
ad4ebed0 | 5186 | u32 i, valid; |
5187 | u64 data; | |
1ee6dd77 | 5188 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5189 | |
5190 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
5191 | ||
5192 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
5193 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
5194 | ||
5195 | for (i = 0; i < eeprom->len; i += 4) { | |
5196 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
5197 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
5198 | return -EFAULT; | |
5199 | } | |
5200 | valid = INV(data); | |
5201 | memcpy((data_buf + i), &valid, 4); | |
5202 | } | |
5203 | return 0; | |
5204 | } | |
5205 | ||
5206 | /** | |
5207 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
5208 | * @sp : private member of the device structure, which is a pointer to the | |
5209 | * s2io_nic structure. | |
20346722 | 5210 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5211 | * containing all relevant information. |
5212 | * @data_buf ; user defined value to be written into Eeprom. | |
5213 | * Description: | |
5214 | * Tries to write the user provided value in the Eeprom, at the offset | |
5215 | * given by the user. | |
5216 | * Return value: | |
5217 | * 0 on success, -EFAULT on failure. | |
5218 | */ | |
5219 | ||
5220 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5221 | struct ethtool_eeprom *eeprom, | |
5222 | u8 * data_buf) | |
5223 | { | |
5224 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5225 | u64 valid = 0, data; |
1ee6dd77 | 5226 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5227 | |
5228 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5229 | DBG_PRINT(ERR_DBG, | |
5230 | "ETHTOOL_WRITE_EEPROM Err: Magic value "); | |
5231 | DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n", | |
5232 | eeprom->magic); | |
5233 | return -EFAULT; | |
5234 | } | |
5235 | ||
5236 | while (len) { | |
5237 | data = (u32) data_buf[cnt] & 0x000000FF; | |
5238 | if (data) { | |
5239 | valid = (u32) (data << 24); | |
5240 | } else | |
5241 | valid = data; | |
5242 | ||
5243 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5244 | DBG_PRINT(ERR_DBG, | |
5245 | "ETHTOOL_WRITE_EEPROM Err: Cannot "); | |
5246 | DBG_PRINT(ERR_DBG, | |
5247 | "write into the specified offset\n"); | |
5248 | return -EFAULT; | |
5249 | } | |
5250 | cnt++; | |
5251 | len--; | |
5252 | } | |
5253 | ||
5254 | return 0; | |
5255 | } | |
5256 | ||
5257 | /** | |
20346722 K |
5258 | * s2io_register_test - reads and writes into all clock domains. |
5259 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5260 | * s2io_nic structure. |
5261 | * @data : variable that returns the result of each of the test conducted b | |
5262 | * by the driver. | |
5263 | * Description: | |
5264 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5265 | * see that registers in all the three regions are accessible. | |
5266 | * Return value: | |
5267 | * 0 on success. | |
5268 | */ | |
5269 | ||
1ee6dd77 | 5270 | static int s2io_register_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5271 | { |
1ee6dd77 | 5272 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5273 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5274 | int fail = 0; |
5275 | ||
20346722 K |
5276 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5277 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 LT |
5278 | fail = 1; |
5279 | DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n"); | |
5280 | } | |
5281 | ||
5282 | val64 = readq(&bar0->rmac_pause_cfg); | |
5283 | if (val64 != 0xc000ffff00000000ULL) { | |
5284 | fail = 1; | |
5285 | DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n"); | |
5286 | } | |
5287 | ||
5288 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5289 | if (sp->device_type == XFRAME_II_DEVICE) |
5290 | exp_val = 0x0404040404040404ULL; | |
5291 | else | |
5292 | exp_val = 0x0808080808080808ULL; | |
5293 | if (val64 != exp_val) { | |
1da177e4 LT |
5294 | fail = 1; |
5295 | DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n"); | |
5296 | } | |
5297 | ||
5298 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5299 | if (val64 != 0x000000001923141EULL) { | |
5300 | fail = 1; | |
5301 | DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n"); | |
5302 | } | |
5303 | ||
5304 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5305 | writeq(val64, &bar0->xmsi_data); | |
5306 | val64 = readq(&bar0->xmsi_data); | |
5307 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5308 | fail = 1; | |
5309 | DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n"); | |
5310 | } | |
5311 | ||
5312 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5313 | writeq(val64, &bar0->xmsi_data); | |
5314 | val64 = readq(&bar0->xmsi_data); | |
5315 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5316 | fail = 1; | |
5317 | DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n"); | |
5318 | } | |
5319 | ||
5320 | *data = fail; | |
ad4ebed0 | 5321 | return fail; |
1da177e4 LT |
5322 | } |
5323 | ||
5324 | /** | |
20346722 | 5325 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5326 | * @sp : private member of the device structure, which is a pointer to the |
5327 | * s2io_nic structure. | |
5328 | * @data:variable that returns the result of each of the test conducted by | |
5329 | * the driver. | |
5330 | * Description: | |
20346722 | 5331 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5332 | * register. |
5333 | * Return value: | |
5334 | * 0 on success. | |
5335 | */ | |
5336 | ||
1ee6dd77 | 5337 | static int s2io_eeprom_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5338 | { |
5339 | int fail = 0; | |
ad4ebed0 | 5340 | u64 ret_data, org_4F0, org_7F0; |
5341 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5342 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5343 | |
5344 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5345 | /* Note that SPI interface allows write access to all areas |
5346 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5347 | */ | |
5348 | if (sp->device_type == XFRAME_I_DEVICE) | |
5349 | if (!write_eeprom(sp, 0, 0, 3)) | |
5350 | fail = 1; | |
5351 | ||
5352 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5353 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5354 | saved_4F0 = 1; | |
5355 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5356 | saved_7F0 = 1; | |
1da177e4 LT |
5357 | |
5358 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5359 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5360 | fail = 1; |
5361 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5362 | fail = 1; | |
5363 | ||
ad4ebed0 | 5364 | if (ret_data != 0x012345) { |
26b7625c AM |
5365 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
5366 | "Data written %llx Data read %llx\n", | |
5367 | dev->name, (unsigned long long)0x12345, | |
5368 | (unsigned long long)ret_data); | |
1da177e4 | 5369 | fail = 1; |
ad4ebed0 | 5370 | } |
1da177e4 LT |
5371 | |
5372 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5373 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5374 | |
5375 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 5376 | if (sp->device_type == XFRAME_I_DEVICE) |
5377 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
5378 | fail = 1; | |
1da177e4 | 5379 | |
ad4ebed0 | 5380 | /* Test Write Request at offset 0x7f0 */ |
5381 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 5382 | fail = 1; |
ad4ebed0 | 5383 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
5384 | fail = 1; |
5385 | ||
ad4ebed0 | 5386 | if (ret_data != 0x012345) { |
26b7625c AM |
5387 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
5388 | "Data written %llx Data read %llx\n", | |
5389 | dev->name, (unsigned long long)0x12345, | |
5390 | (unsigned long long)ret_data); | |
1da177e4 | 5391 | fail = 1; |
ad4ebed0 | 5392 | } |
1da177e4 LT |
5393 | |
5394 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5395 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 5396 | |
ad4ebed0 | 5397 | if (sp->device_type == XFRAME_I_DEVICE) { |
5398 | /* Test Write Error at offset 0x80 */ | |
5399 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
5400 | fail = 1; | |
1da177e4 | 5401 | |
ad4ebed0 | 5402 | /* Test Write Error at offset 0xfc */ |
5403 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
5404 | fail = 1; | |
1da177e4 | 5405 | |
ad4ebed0 | 5406 | /* Test Write Error at offset 0x100 */ |
5407 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
5408 | fail = 1; | |
1da177e4 | 5409 | |
ad4ebed0 | 5410 | /* Test Write Error at offset 4ec */ |
5411 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
5412 | fail = 1; | |
5413 | } | |
5414 | ||
5415 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
5416 | if (saved_4F0) | |
5417 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
5418 | if (saved_7F0) | |
5419 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
5420 | |
5421 | *data = fail; | |
ad4ebed0 | 5422 | return fail; |
1da177e4 LT |
5423 | } |
5424 | ||
5425 | /** | |
5426 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 5427 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 5428 | * s2io_nic structure. |
20346722 | 5429 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
5430 | * the driver. |
5431 | * Description: | |
5432 | * This invokes the MemBist test of the card. We give around | |
5433 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 5434 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
5435 | * Return value: |
5436 | * 0 on success and -1 on failure. | |
5437 | */ | |
5438 | ||
1ee6dd77 | 5439 | static int s2io_bist_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5440 | { |
5441 | u8 bist = 0; | |
5442 | int cnt = 0, ret = -1; | |
5443 | ||
5444 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5445 | bist |= PCI_BIST_START; | |
5446 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
5447 | ||
5448 | while (cnt < 20) { | |
5449 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5450 | if (!(bist & PCI_BIST_START)) { | |
5451 | *data = (bist & PCI_BIST_CODE_MASK); | |
5452 | ret = 0; | |
5453 | break; | |
5454 | } | |
5455 | msleep(100); | |
5456 | cnt++; | |
5457 | } | |
5458 | ||
5459 | return ret; | |
5460 | } | |
5461 | ||
5462 | /** | |
20346722 K |
5463 | * s2io-link_test - verifies the link state of the nic |
5464 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5465 | * s2io_nic structure. |
5466 | * @data: variable that returns the result of each of the test conducted by | |
5467 | * the driver. | |
5468 | * Description: | |
20346722 | 5469 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
5470 | * argument 'data' appropriately. |
5471 | * Return value: | |
5472 | * 0 on success. | |
5473 | */ | |
5474 | ||
1ee6dd77 | 5475 | static int s2io_link_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5476 | { |
1ee6dd77 | 5477 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5478 | u64 val64; |
5479 | ||
5480 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 5481 | if(!(LINK_IS_UP(val64))) |
1da177e4 | 5482 | *data = 1; |
c92ca04b AR |
5483 | else |
5484 | *data = 0; | |
1da177e4 | 5485 | |
b41477f3 | 5486 | return *data; |
1da177e4 LT |
5487 | } |
5488 | ||
5489 | /** | |
20346722 K |
5490 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
5491 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 5492 | * s2io_nic structure. |
20346722 | 5493 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
5494 | * conducted by the driver. |
5495 | * Description: | |
20346722 | 5496 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
5497 | * access to the RldRam chip on the NIC. |
5498 | * Return value: | |
5499 | * 0 on success. | |
5500 | */ | |
5501 | ||
1ee6dd77 | 5502 | static int s2io_rldram_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5503 | { |
1ee6dd77 | 5504 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5505 | u64 val64; |
ad4ebed0 | 5506 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
5507 | |
5508 | val64 = readq(&bar0->adapter_control); | |
5509 | val64 &= ~ADAPTER_ECC_EN; | |
5510 | writeq(val64, &bar0->adapter_control); | |
5511 | ||
5512 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5513 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 5514 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
5515 | |
5516 | val64 = readq(&bar0->mc_rldram_mrs); | |
5517 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
5518 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5519 | ||
5520 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
5521 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5522 | ||
5523 | while (iteration < 2) { | |
5524 | val64 = 0x55555555aaaa0000ULL; | |
5525 | if (iteration == 1) { | |
5526 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5527 | } | |
5528 | writeq(val64, &bar0->mc_rldram_test_d0); | |
5529 | ||
5530 | val64 = 0xaaaa5a5555550000ULL; | |
5531 | if (iteration == 1) { | |
5532 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5533 | } | |
5534 | writeq(val64, &bar0->mc_rldram_test_d1); | |
5535 | ||
5536 | val64 = 0x55aaaaaaaa5a0000ULL; | |
5537 | if (iteration == 1) { | |
5538 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5539 | } | |
5540 | writeq(val64, &bar0->mc_rldram_test_d2); | |
5541 | ||
ad4ebed0 | 5542 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
5543 | writeq(val64, &bar0->mc_rldram_test_add); |
5544 | ||
ad4ebed0 | 5545 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE | |
5546 | MC_RLDRAM_TEST_GO; | |
5547 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5548 | |
5549 | for (cnt = 0; cnt < 5; cnt++) { | |
5550 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5551 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5552 | break; | |
5553 | msleep(200); | |
5554 | } | |
5555 | ||
5556 | if (cnt == 5) | |
5557 | break; | |
5558 | ||
ad4ebed0 | 5559 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
5560 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5561 | |
5562 | for (cnt = 0; cnt < 5; cnt++) { | |
5563 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5564 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5565 | break; | |
5566 | msleep(500); | |
5567 | } | |
5568 | ||
5569 | if (cnt == 5) | |
5570 | break; | |
5571 | ||
5572 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 5573 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
5574 | test_fail = 1; | |
1da177e4 LT |
5575 | |
5576 | iteration++; | |
5577 | } | |
5578 | ||
ad4ebed0 | 5579 | *data = test_fail; |
1da177e4 | 5580 | |
ad4ebed0 | 5581 | /* Bring the adapter out of test mode */ |
5582 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
5583 | ||
5584 | return test_fail; | |
1da177e4 LT |
5585 | } |
5586 | ||
5587 | /** | |
5588 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
5589 | * @sp : private member of the device structure, which is a pointer to the | |
5590 | * s2io_nic structure. | |
5591 | * @ethtest : pointer to a ethtool command specific structure that will be | |
5592 | * returned to the user. | |
20346722 | 5593 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
5594 | * conducted by the driver. |
5595 | * Description: | |
5596 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
5597 | * the health of the card. | |
5598 | * Return value: | |
5599 | * void | |
5600 | */ | |
5601 | ||
5602 | static void s2io_ethtool_test(struct net_device *dev, | |
5603 | struct ethtool_test *ethtest, | |
5604 | uint64_t * data) | |
5605 | { | |
1ee6dd77 | 5606 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5607 | int orig_state = netif_running(sp->dev); |
5608 | ||
5609 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
5610 | /* Offline Tests. */ | |
20346722 | 5611 | if (orig_state) |
1da177e4 | 5612 | s2io_close(sp->dev); |
1da177e4 LT |
5613 | |
5614 | if (s2io_register_test(sp, &data[0])) | |
5615 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5616 | ||
5617 | s2io_reset(sp); | |
1da177e4 LT |
5618 | |
5619 | if (s2io_rldram_test(sp, &data[3])) | |
5620 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5621 | ||
5622 | s2io_reset(sp); | |
1da177e4 LT |
5623 | |
5624 | if (s2io_eeprom_test(sp, &data[1])) | |
5625 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5626 | ||
5627 | if (s2io_bist_test(sp, &data[4])) | |
5628 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5629 | ||
5630 | if (orig_state) | |
5631 | s2io_open(sp->dev); | |
5632 | ||
5633 | data[2] = 0; | |
5634 | } else { | |
5635 | /* Online Tests. */ | |
5636 | if (!orig_state) { | |
5637 | DBG_PRINT(ERR_DBG, | |
5638 | "%s: is not up, cannot run test\n", | |
5639 | dev->name); | |
5640 | data[0] = -1; | |
5641 | data[1] = -1; | |
5642 | data[2] = -1; | |
5643 | data[3] = -1; | |
5644 | data[4] = -1; | |
5645 | } | |
5646 | ||
5647 | if (s2io_link_test(sp, &data[2])) | |
5648 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5649 | ||
5650 | data[0] = 0; | |
5651 | data[1] = 0; | |
5652 | data[3] = 0; | |
5653 | data[4] = 0; | |
5654 | } | |
5655 | } | |
5656 | ||
5657 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
5658 | struct ethtool_stats *estats, | |
5659 | u64 * tmp_stats) | |
5660 | { | |
5661 | int i = 0; | |
1ee6dd77 RB |
5662 | struct s2io_nic *sp = dev->priv; |
5663 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
1da177e4 | 5664 | |
7ba013ac | 5665 | s2io_updt_stats(sp); |
541ae68f K |
5666 | tmp_stats[i++] = |
5667 | (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 | | |
5668 | le32_to_cpu(stat_info->tmac_frms); | |
5669 | tmp_stats[i++] = | |
5670 | (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 | | |
5671 | le32_to_cpu(stat_info->tmac_data_octets); | |
1da177e4 | 5672 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms); |
541ae68f K |
5673 | tmp_stats[i++] = |
5674 | (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 | | |
5675 | le32_to_cpu(stat_info->tmac_mcst_frms); | |
5676 | tmp_stats[i++] = | |
5677 | (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 | | |
5678 | le32_to_cpu(stat_info->tmac_bcst_frms); | |
1da177e4 | 5679 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms); |
bd1034f0 AR |
5680 | tmp_stats[i++] = |
5681 | (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 | | |
5682 | le32_to_cpu(stat_info->tmac_ttl_octets); | |
5683 | tmp_stats[i++] = | |
5684 | (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 | | |
5685 | le32_to_cpu(stat_info->tmac_ucst_frms); | |
5686 | tmp_stats[i++] = | |
5687 | (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 | | |
5688 | le32_to_cpu(stat_info->tmac_nucst_frms); | |
541ae68f K |
5689 | tmp_stats[i++] = |
5690 | (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 | | |
5691 | le32_to_cpu(stat_info->tmac_any_err_frms); | |
bd1034f0 | 5692 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets); |
1da177e4 | 5693 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets); |
541ae68f K |
5694 | tmp_stats[i++] = |
5695 | (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 | | |
5696 | le32_to_cpu(stat_info->tmac_vld_ip); | |
5697 | tmp_stats[i++] = | |
5698 | (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 | | |
5699 | le32_to_cpu(stat_info->tmac_drop_ip); | |
5700 | tmp_stats[i++] = | |
5701 | (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 | | |
5702 | le32_to_cpu(stat_info->tmac_icmp); | |
5703 | tmp_stats[i++] = | |
5704 | (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 | | |
5705 | le32_to_cpu(stat_info->tmac_rst_tcp); | |
1da177e4 | 5706 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp); |
541ae68f K |
5707 | tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 | |
5708 | le32_to_cpu(stat_info->tmac_udp); | |
5709 | tmp_stats[i++] = | |
5710 | (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 | | |
5711 | le32_to_cpu(stat_info->rmac_vld_frms); | |
5712 | tmp_stats[i++] = | |
5713 | (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 | | |
5714 | le32_to_cpu(stat_info->rmac_data_octets); | |
1da177e4 LT |
5715 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms); |
5716 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms); | |
541ae68f K |
5717 | tmp_stats[i++] = |
5718 | (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 | | |
5719 | le32_to_cpu(stat_info->rmac_vld_mcst_frms); | |
5720 | tmp_stats[i++] = | |
5721 | (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 | | |
5722 | le32_to_cpu(stat_info->rmac_vld_bcst_frms); | |
1da177e4 | 5723 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms); |
bd1034f0 | 5724 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms); |
1da177e4 LT |
5725 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms); |
5726 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms); | |
bd1034f0 AR |
5727 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms); |
5728 | tmp_stats[i++] = | |
5729 | (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 | | |
5730 | le32_to_cpu(stat_info->rmac_ttl_octets); | |
5731 | tmp_stats[i++] = | |
5732 | (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow) | |
5733 | << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms); | |
5734 | tmp_stats[i++] = | |
5735 | (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow) | |
5736 | << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms); | |
541ae68f K |
5737 | tmp_stats[i++] = |
5738 | (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 | | |
5739 | le32_to_cpu(stat_info->rmac_discarded_frms); | |
bd1034f0 AR |
5740 | tmp_stats[i++] = |
5741 | (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow) | |
5742 | << 32 | le32_to_cpu(stat_info->rmac_drop_events); | |
5743 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets); | |
5744 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms); | |
541ae68f K |
5745 | tmp_stats[i++] = |
5746 | (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 | | |
5747 | le32_to_cpu(stat_info->rmac_usized_frms); | |
5748 | tmp_stats[i++] = | |
5749 | (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 | | |
5750 | le32_to_cpu(stat_info->rmac_osized_frms); | |
5751 | tmp_stats[i++] = | |
5752 | (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 | | |
5753 | le32_to_cpu(stat_info->rmac_frag_frms); | |
5754 | tmp_stats[i++] = | |
5755 | (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 | | |
5756 | le32_to_cpu(stat_info->rmac_jabber_frms); | |
bd1034f0 AR |
5757 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms); |
5758 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms); | |
5759 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms); | |
5760 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms); | |
5761 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms); | |
5762 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms); | |
5763 | tmp_stats[i++] = | |
5764 | (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 | | |
541ae68f | 5765 | le32_to_cpu(stat_info->rmac_ip); |
1da177e4 LT |
5766 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets); |
5767 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip); | |
bd1034f0 AR |
5768 | tmp_stats[i++] = |
5769 | (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 | | |
541ae68f | 5770 | le32_to_cpu(stat_info->rmac_drop_ip); |
bd1034f0 AR |
5771 | tmp_stats[i++] = |
5772 | (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 | | |
541ae68f | 5773 | le32_to_cpu(stat_info->rmac_icmp); |
1da177e4 | 5774 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp); |
bd1034f0 AR |
5775 | tmp_stats[i++] = |
5776 | (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 | | |
541ae68f K |
5777 | le32_to_cpu(stat_info->rmac_udp); |
5778 | tmp_stats[i++] = | |
5779 | (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 | | |
5780 | le32_to_cpu(stat_info->rmac_err_drp_udp); | |
bd1034f0 AR |
5781 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym); |
5782 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0); | |
5783 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1); | |
5784 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2); | |
5785 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3); | |
5786 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4); | |
5787 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5); | |
5788 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6); | |
5789 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7); | |
5790 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0); | |
5791 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1); | |
5792 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2); | |
5793 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3); | |
5794 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4); | |
5795 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5); | |
5796 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6); | |
5797 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7); | |
541ae68f K |
5798 | tmp_stats[i++] = |
5799 | (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 | | |
5800 | le32_to_cpu(stat_info->rmac_pause_cnt); | |
bd1034f0 AR |
5801 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt); |
5802 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt); | |
541ae68f K |
5803 | tmp_stats[i++] = |
5804 | (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 | | |
5805 | le32_to_cpu(stat_info->rmac_accepted_ip); | |
1da177e4 | 5806 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp); |
bd1034f0 AR |
5807 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt); |
5808 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt); | |
5809 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt); | |
5810 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt); | |
5811 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt); | |
5812 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt); | |
5813 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt); | |
5814 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt); | |
5815 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt); | |
5816 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt); | |
5817 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt); | |
5818 | tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt); | |
5819 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt); | |
5820 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt); | |
5821 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt); | |
5822 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt); | |
5823 | tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt); | |
5824 | tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt); | |
fa1f0cb3 SS |
5825 | |
5826 | /* Enhanced statistics exist only for Hercules */ | |
5827 | if(sp->device_type == XFRAME_II_DEVICE) { | |
5828 | tmp_stats[i++] = | |
5829 | le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms); | |
5830 | tmp_stats[i++] = | |
5831 | le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms); | |
5832 | tmp_stats[i++] = | |
5833 | le64_to_cpu(stat_info->rmac_ttl_8192_max_frms); | |
5834 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms); | |
5835 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms); | |
5836 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms); | |
5837 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms); | |
5838 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms); | |
5839 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard); | |
5840 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard); | |
5841 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard); | |
5842 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard); | |
5843 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard); | |
5844 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard); | |
5845 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard); | |
5846 | tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt); | |
5847 | } | |
5848 | ||
7ba013ac K |
5849 | tmp_stats[i++] = 0; |
5850 | tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs; | |
5851 | tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs; | |
bd1034f0 AR |
5852 | tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt; |
5853 | tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt; | |
5854 | tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt; | |
5855 | tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt; | |
5856 | tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt; | |
5857 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high; | |
5858 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low; | |
5859 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high; | |
5860 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low; | |
5861 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high; | |
5862 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low; | |
5863 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high; | |
5864 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low; | |
5865 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high; | |
5866 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low; | |
5867 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high; | |
5868 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low; | |
7d3d0439 RA |
5869 | tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt; |
5870 | tmp_stats[i++] = stat_info->sw_stat.sending_both; | |
5871 | tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts; | |
5872 | tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts; | |
fe931395 | 5873 | if (stat_info->sw_stat.num_aggregations) { |
bd1034f0 AR |
5874 | u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated; |
5875 | int count = 0; | |
6aa20a22 | 5876 | /* |
bd1034f0 AR |
5877 | * Since 64-bit divide does not work on all platforms, |
5878 | * do repeated subtraction. | |
5879 | */ | |
5880 | while (tmp >= stat_info->sw_stat.num_aggregations) { | |
5881 | tmp -= stat_info->sw_stat.num_aggregations; | |
5882 | count++; | |
5883 | } | |
5884 | tmp_stats[i++] = count; | |
fe931395 | 5885 | } |
bd1034f0 AR |
5886 | else |
5887 | tmp_stats[i++] = 0; | |
c53d4945 | 5888 | tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt; |
491abf25 | 5889 | tmp_stats[i++] = stat_info->sw_stat.pci_map_fail_cnt; |
c53d4945 | 5890 | tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt; |
491976b2 SH |
5891 | tmp_stats[i++] = stat_info->sw_stat.mem_allocated; |
5892 | tmp_stats[i++] = stat_info->sw_stat.mem_freed; | |
5893 | tmp_stats[i++] = stat_info->sw_stat.link_up_cnt; | |
5894 | tmp_stats[i++] = stat_info->sw_stat.link_down_cnt; | |
5895 | tmp_stats[i++] = stat_info->sw_stat.link_up_time; | |
5896 | tmp_stats[i++] = stat_info->sw_stat.link_down_time; | |
5897 | ||
5898 | tmp_stats[i++] = stat_info->sw_stat.tx_buf_abort_cnt; | |
5899 | tmp_stats[i++] = stat_info->sw_stat.tx_desc_abort_cnt; | |
5900 | tmp_stats[i++] = stat_info->sw_stat.tx_parity_err_cnt; | |
5901 | tmp_stats[i++] = stat_info->sw_stat.tx_link_loss_cnt; | |
5902 | tmp_stats[i++] = stat_info->sw_stat.tx_list_proc_err_cnt; | |
5903 | ||
5904 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_err_cnt; | |
5905 | tmp_stats[i++] = stat_info->sw_stat.rx_abort_cnt; | |
5906 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_abort_cnt; | |
5907 | tmp_stats[i++] = stat_info->sw_stat.rx_rda_fail_cnt; | |
5908 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_prot_cnt; | |
5909 | tmp_stats[i++] = stat_info->sw_stat.rx_fcs_err_cnt; | |
5910 | tmp_stats[i++] = stat_info->sw_stat.rx_buf_size_err_cnt; | |
5911 | tmp_stats[i++] = stat_info->sw_stat.rx_rxd_corrupt_cnt; | |
5912 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_err_cnt; | |
1da177e4 LT |
5913 | } |
5914 | ||
ac1f60db | 5915 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 LT |
5916 | { |
5917 | return (XENA_REG_SPACE); | |
5918 | } | |
5919 | ||
5920 | ||
ac1f60db | 5921 | static u32 s2io_ethtool_get_rx_csum(struct net_device * dev) |
1da177e4 | 5922 | { |
1ee6dd77 | 5923 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5924 | |
5925 | return (sp->rx_csum); | |
5926 | } | |
ac1f60db AB |
5927 | |
5928 | static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
1da177e4 | 5929 | { |
1ee6dd77 | 5930 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5931 | |
5932 | if (data) | |
5933 | sp->rx_csum = 1; | |
5934 | else | |
5935 | sp->rx_csum = 0; | |
5936 | ||
5937 | return 0; | |
5938 | } | |
ac1f60db AB |
5939 | |
5940 | static int s2io_get_eeprom_len(struct net_device *dev) | |
1da177e4 LT |
5941 | { |
5942 | return (XENA_EEPROM_SPACE); | |
5943 | } | |
5944 | ||
ac1f60db | 5945 | static int s2io_ethtool_self_test_count(struct net_device *dev) |
1da177e4 LT |
5946 | { |
5947 | return (S2IO_TEST_LEN); | |
5948 | } | |
ac1f60db AB |
5949 | |
5950 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
5951 | u32 stringset, u8 * data) | |
1da177e4 | 5952 | { |
fa1f0cb3 SS |
5953 | int stat_size = 0; |
5954 | struct s2io_nic *sp = dev->priv; | |
5955 | ||
1da177e4 LT |
5956 | switch (stringset) { |
5957 | case ETH_SS_TEST: | |
5958 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
5959 | break; | |
5960 | case ETH_SS_STATS: | |
fa1f0cb3 SS |
5961 | stat_size = sizeof(ethtool_xena_stats_keys); |
5962 | memcpy(data, ðtool_xena_stats_keys,stat_size); | |
5963 | if(sp->device_type == XFRAME_II_DEVICE) { | |
5964 | memcpy(data + stat_size, | |
5965 | ðtool_enhanced_stats_keys, | |
5966 | sizeof(ethtool_enhanced_stats_keys)); | |
5967 | stat_size += sizeof(ethtool_enhanced_stats_keys); | |
5968 | } | |
5969 | ||
5970 | memcpy(data + stat_size, ðtool_driver_stats_keys, | |
5971 | sizeof(ethtool_driver_stats_keys)); | |
1da177e4 LT |
5972 | } |
5973 | } | |
1da177e4 LT |
5974 | static int s2io_ethtool_get_stats_count(struct net_device *dev) |
5975 | { | |
fa1f0cb3 SS |
5976 | struct s2io_nic *sp = dev->priv; |
5977 | int stat_count = 0; | |
5978 | switch(sp->device_type) { | |
5979 | case XFRAME_I_DEVICE: | |
5980 | stat_count = XFRAME_I_STAT_LEN; | |
5981 | break; | |
5982 | ||
5983 | case XFRAME_II_DEVICE: | |
5984 | stat_count = XFRAME_II_STAT_LEN; | |
5985 | break; | |
5986 | } | |
5987 | ||
5988 | return stat_count; | |
1da177e4 LT |
5989 | } |
5990 | ||
ac1f60db | 5991 | static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 LT |
5992 | { |
5993 | if (data) | |
5994 | dev->features |= NETIF_F_IP_CSUM; | |
5995 | else | |
5996 | dev->features &= ~NETIF_F_IP_CSUM; | |
5997 | ||
5998 | return 0; | |
5999 | } | |
6000 | ||
75c30b13 AR |
6001 | static u32 s2io_ethtool_op_get_tso(struct net_device *dev) |
6002 | { | |
6003 | return (dev->features & NETIF_F_TSO) != 0; | |
6004 | } | |
6005 | static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) | |
6006 | { | |
6007 | if (data) | |
6008 | dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); | |
6009 | else | |
6010 | dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
6011 | ||
6012 | return 0; | |
6013 | } | |
1da177e4 | 6014 | |
7282d491 | 6015 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
6016 | .get_settings = s2io_ethtool_gset, |
6017 | .set_settings = s2io_ethtool_sset, | |
6018 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
6019 | .get_regs_len = s2io_ethtool_get_regs_len, | |
6020 | .get_regs = s2io_ethtool_gregs, | |
6021 | .get_link = ethtool_op_get_link, | |
6022 | .get_eeprom_len = s2io_get_eeprom_len, | |
6023 | .get_eeprom = s2io_ethtool_geeprom, | |
6024 | .set_eeprom = s2io_ethtool_seeprom, | |
0cec35eb | 6025 | .get_ringparam = s2io_ethtool_gringparam, |
1da177e4 LT |
6026 | .get_pauseparam = s2io_ethtool_getpause_data, |
6027 | .set_pauseparam = s2io_ethtool_setpause_data, | |
6028 | .get_rx_csum = s2io_ethtool_get_rx_csum, | |
6029 | .set_rx_csum = s2io_ethtool_set_rx_csum, | |
6030 | .get_tx_csum = ethtool_op_get_tx_csum, | |
6031 | .set_tx_csum = s2io_ethtool_op_set_tx_csum, | |
6032 | .get_sg = ethtool_op_get_sg, | |
6033 | .set_sg = ethtool_op_set_sg, | |
75c30b13 AR |
6034 | .get_tso = s2io_ethtool_op_get_tso, |
6035 | .set_tso = s2io_ethtool_op_set_tso, | |
fed5eccd AR |
6036 | .get_ufo = ethtool_op_get_ufo, |
6037 | .set_ufo = ethtool_op_set_ufo, | |
1da177e4 LT |
6038 | .self_test_count = s2io_ethtool_self_test_count, |
6039 | .self_test = s2io_ethtool_test, | |
6040 | .get_strings = s2io_ethtool_get_strings, | |
6041 | .phys_id = s2io_ethtool_idnic, | |
6042 | .get_stats_count = s2io_ethtool_get_stats_count, | |
6043 | .get_ethtool_stats = s2io_get_ethtool_stats | |
6044 | }; | |
6045 | ||
6046 | /** | |
20346722 | 6047 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
6048 | * @dev : Device pointer. |
6049 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
6050 | * a proprietary structure used to pass information to the driver. | |
6051 | * @cmd : This is used to distinguish between the different commands that | |
6052 | * can be passed to the IOCTL functions. | |
6053 | * Description: | |
20346722 K |
6054 | * Currently there are no special functionality supported in IOCTL, hence |
6055 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
6056 | */ |
6057 | ||
ac1f60db | 6058 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
6059 | { |
6060 | return -EOPNOTSUPP; | |
6061 | } | |
6062 | ||
6063 | /** | |
6064 | * s2io_change_mtu - entry point to change MTU size for the device. | |
6065 | * @dev : device pointer. | |
6066 | * @new_mtu : the new MTU size for the device. | |
6067 | * Description: A driver entry point to change MTU size for the device. | |
6068 | * Before changing the MTU the device must be stopped. | |
6069 | * Return value: | |
6070 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
6071 | * file on failure. | |
6072 | */ | |
6073 | ||
ac1f60db | 6074 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 6075 | { |
1ee6dd77 | 6076 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6077 | |
6078 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
6079 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", | |
6080 | dev->name); | |
6081 | return -EPERM; | |
6082 | } | |
6083 | ||
1da177e4 | 6084 | dev->mtu = new_mtu; |
d8892c6e | 6085 | if (netif_running(dev)) { |
e6a8fee2 | 6086 | s2io_card_down(sp); |
d8892c6e K |
6087 | netif_stop_queue(dev); |
6088 | if (s2io_card_up(sp)) { | |
6089 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6090 | __FUNCTION__); | |
6091 | } | |
6092 | if (netif_queue_stopped(dev)) | |
6093 | netif_wake_queue(dev); | |
6094 | } else { /* Device is down */ | |
1ee6dd77 | 6095 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e K |
6096 | u64 val64 = new_mtu; |
6097 | ||
6098 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
6099 | } | |
1da177e4 LT |
6100 | |
6101 | return 0; | |
6102 | } | |
6103 | ||
6104 | /** | |
6105 | * s2io_tasklet - Bottom half of the ISR. | |
6106 | * @dev_adr : address of the device structure in dma_addr_t format. | |
6107 | * Description: | |
6108 | * This is the tasklet or the bottom half of the ISR. This is | |
20346722 | 6109 | * an extension of the ISR which is scheduled by the scheduler to be run |
1da177e4 | 6110 | * when the load on the CPU is low. All low priority tasks of the ISR can |
20346722 | 6111 | * be pushed into the tasklet. For now the tasklet is used only to |
1da177e4 LT |
6112 | * replenish the Rx buffers in the Rx buffer descriptors. |
6113 | * Return value: | |
6114 | * void. | |
6115 | */ | |
6116 | ||
6117 | static void s2io_tasklet(unsigned long dev_addr) | |
6118 | { | |
6119 | struct net_device *dev = (struct net_device *) dev_addr; | |
1ee6dd77 | 6120 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 6121 | int i, ret; |
1ee6dd77 | 6122 | struct mac_info *mac_control; |
1da177e4 LT |
6123 | struct config_param *config; |
6124 | ||
6125 | mac_control = &sp->mac_control; | |
6126 | config = &sp->config; | |
6127 | ||
6128 | if (!TASKLET_IN_USE) { | |
6129 | for (i = 0; i < config->rx_ring_num; i++) { | |
6130 | ret = fill_rx_buffers(sp, i); | |
6131 | if (ret == -ENOMEM) { | |
0c61ed5f | 6132 | DBG_PRINT(INFO_DBG, "%s: Out of ", |
1da177e4 | 6133 | dev->name); |
491976b2 | 6134 | DBG_PRINT(INFO_DBG, "memory in tasklet\n"); |
1da177e4 LT |
6135 | break; |
6136 | } else if (ret == -EFILL) { | |
0c61ed5f | 6137 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
6138 | "%s: Rx Ring %d is full\n", |
6139 | dev->name, i); | |
6140 | break; | |
6141 | } | |
6142 | } | |
6143 | clear_bit(0, (&sp->tasklet_status)); | |
6144 | } | |
6145 | } | |
6146 | ||
6147 | /** | |
6148 | * s2io_set_link - Set the LInk status | |
6149 | * @data: long pointer to device private structue | |
6150 | * Description: Sets the link status for the adapter | |
6151 | */ | |
6152 | ||
c4028958 | 6153 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 6154 | { |
1ee6dd77 | 6155 | struct s2io_nic *nic = container_of(work, struct s2io_nic, set_link_task); |
1da177e4 | 6156 | struct net_device *dev = nic->dev; |
1ee6dd77 | 6157 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
6158 | register u64 val64; |
6159 | u16 subid; | |
6160 | ||
22747d6b FR |
6161 | rtnl_lock(); |
6162 | ||
6163 | if (!netif_running(dev)) | |
6164 | goto out_unlock; | |
6165 | ||
1da177e4 LT |
6166 | if (test_and_set_bit(0, &(nic->link_state))) { |
6167 | /* The card is being reset, no point doing anything */ | |
22747d6b | 6168 | goto out_unlock; |
1da177e4 LT |
6169 | } |
6170 | ||
6171 | subid = nic->pdev->subsystem_device; | |
a371a07d K |
6172 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
6173 | /* | |
6174 | * Allow a small delay for the NICs self initiated | |
6175 | * cleanup to complete. | |
6176 | */ | |
6177 | msleep(100); | |
6178 | } | |
1da177e4 LT |
6179 | |
6180 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
6181 | if (LINK_IS_UP(val64)) { |
6182 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
6183 | if (verify_xena_quiescence(nic)) { | |
6184 | val64 = readq(&bar0->adapter_control); | |
6185 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 6186 | writeq(val64, &bar0->adapter_control); |
19a60522 SS |
6187 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
6188 | nic->device_type, subid)) { | |
6189 | val64 = readq(&bar0->gpio_control); | |
6190 | val64 |= GPIO_CTRL_GPIO_0; | |
6191 | writeq(val64, &bar0->gpio_control); | |
6192 | val64 = readq(&bar0->gpio_control); | |
6193 | } else { | |
6194 | val64 |= ADAPTER_LED_ON; | |
6195 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 6196 | } |
1da177e4 | 6197 | nic->device_enabled_once = TRUE; |
19a60522 SS |
6198 | } else { |
6199 | DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name); | |
6200 | DBG_PRINT(ERR_DBG, "device is not Quiescent\n"); | |
6201 | netif_stop_queue(dev); | |
1da177e4 | 6202 | } |
19a60522 | 6203 | } |
92c48799 SS |
6204 | val64 = readq(&bar0->adapter_control); |
6205 | val64 |= ADAPTER_LED_ON; | |
6206 | writeq(val64, &bar0->adapter_control); | |
6207 | s2io_link(nic, LINK_UP); | |
19a60522 SS |
6208 | } else { |
6209 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
6210 | subid)) { | |
6211 | val64 = readq(&bar0->gpio_control); | |
6212 | val64 &= ~GPIO_CTRL_GPIO_0; | |
6213 | writeq(val64, &bar0->gpio_control); | |
6214 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 6215 | } |
92c48799 SS |
6216 | /* turn off LED */ |
6217 | val64 = readq(&bar0->adapter_control); | |
6218 | val64 = val64 &(~ADAPTER_LED_ON); | |
6219 | writeq(val64, &bar0->adapter_control); | |
19a60522 | 6220 | s2io_link(nic, LINK_DOWN); |
1da177e4 LT |
6221 | } |
6222 | clear_bit(0, &(nic->link_state)); | |
22747d6b FR |
6223 | |
6224 | out_unlock: | |
d8d70caf | 6225 | rtnl_unlock(); |
1da177e4 LT |
6226 | } |
6227 | ||
1ee6dd77 RB |
6228 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
6229 | struct buffAdd *ba, | |
6230 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
6231 | u64 *temp2, int size) | |
5d3213cc AR |
6232 | { |
6233 | struct net_device *dev = sp->dev; | |
491abf25 | 6234 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
5d3213cc AR |
6235 | |
6236 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6237 | struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; |
5d3213cc AR |
6238 | /* allocate skb */ |
6239 | if (*skb) { | |
6240 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
6241 | /* | |
6242 | * As Rx frame are not going to be processed, | |
6243 | * using same mapped address for the Rxd | |
6244 | * buffer pointer | |
6245 | */ | |
6d517a27 | 6246 | rxdp1->Buffer0_ptr = *temp0; |
5d3213cc AR |
6247 | } else { |
6248 | *skb = dev_alloc_skb(size); | |
6249 | if (!(*skb)) { | |
0c61ed5f | 6250 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
c53d4945 SH |
6251 | DBG_PRINT(INFO_DBG, "memory to allocate "); |
6252 | DBG_PRINT(INFO_DBG, "1 buf mode SKBs\n"); | |
6253 | sp->mac_control.stats_info->sw_stat. \ | |
6254 | mem_alloc_fail_cnt++; | |
5d3213cc AR |
6255 | return -ENOMEM ; |
6256 | } | |
491976b2 SH |
6257 | sp->mac_control.stats_info->sw_stat.mem_allocated |
6258 | += (*skb)->truesize; | |
5d3213cc AR |
6259 | /* storing the mapped addr in a temp variable |
6260 | * such it will be used for next rxd whose | |
6261 | * Host Control is NULL | |
6262 | */ | |
6d517a27 | 6263 | rxdp1->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6264 | pci_map_single( sp->pdev, (*skb)->data, |
6265 | size - NET_IP_ALIGN, | |
6266 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6267 | if( (rxdp1->Buffer0_ptr == 0) || |
6268 | (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) { | |
6269 | goto memalloc_failed; | |
6270 | } | |
5d3213cc AR |
6271 | rxdp->Host_Control = (unsigned long) (*skb); |
6272 | } | |
6273 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6274 | struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; |
5d3213cc AR |
6275 | /* Two buffer Mode */ |
6276 | if (*skb) { | |
6d517a27 VP |
6277 | rxdp3->Buffer2_ptr = *temp2; |
6278 | rxdp3->Buffer0_ptr = *temp0; | |
6279 | rxdp3->Buffer1_ptr = *temp1; | |
5d3213cc AR |
6280 | } else { |
6281 | *skb = dev_alloc_skb(size); | |
2ceaac75 | 6282 | if (!(*skb)) { |
c53d4945 SH |
6283 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
6284 | DBG_PRINT(INFO_DBG, "memory to allocate "); | |
6285 | DBG_PRINT(INFO_DBG, "2 buf mode SKBs\n"); | |
6286 | sp->mac_control.stats_info->sw_stat. \ | |
6287 | mem_alloc_fail_cnt++; | |
2ceaac75 DR |
6288 | return -ENOMEM; |
6289 | } | |
491976b2 SH |
6290 | sp->mac_control.stats_info->sw_stat.mem_allocated |
6291 | += (*skb)->truesize; | |
6d517a27 | 6292 | rxdp3->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6293 | pci_map_single(sp->pdev, (*skb)->data, |
6294 | dev->mtu + 4, | |
6295 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6296 | if( (rxdp3->Buffer2_ptr == 0) || |
6297 | (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) { | |
6298 | goto memalloc_failed; | |
6299 | } | |
6d517a27 | 6300 | rxdp3->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6301 | pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, |
6302 | PCI_DMA_FROMDEVICE); | |
491abf25 VP |
6303 | if( (rxdp3->Buffer0_ptr == 0) || |
6304 | (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) { | |
6305 | pci_unmap_single (sp->pdev, | |
3e847423 | 6306 | (dma_addr_t)rxdp3->Buffer2_ptr, |
491abf25 VP |
6307 | dev->mtu + 4, PCI_DMA_FROMDEVICE); |
6308 | goto memalloc_failed; | |
6309 | } | |
5d3213cc AR |
6310 | rxdp->Host_Control = (unsigned long) (*skb); |
6311 | ||
6312 | /* Buffer-1 will be dummy buffer not used */ | |
6d517a27 | 6313 | rxdp3->Buffer1_ptr = *temp1 = |
5d3213cc | 6314 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
5d3213cc | 6315 | PCI_DMA_FROMDEVICE); |
491abf25 VP |
6316 | if( (rxdp3->Buffer1_ptr == 0) || |
6317 | (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { | |
6318 | pci_unmap_single (sp->pdev, | |
3e847423 AV |
6319 | (dma_addr_t)rxdp3->Buffer0_ptr, |
6320 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
6321 | pci_unmap_single (sp->pdev, | |
6322 | (dma_addr_t)rxdp3->Buffer2_ptr, | |
491abf25 VP |
6323 | dev->mtu + 4, PCI_DMA_FROMDEVICE); |
6324 | goto memalloc_failed; | |
6325 | } | |
5d3213cc AR |
6326 | } |
6327 | } | |
6328 | return 0; | |
491abf25 VP |
6329 | memalloc_failed: |
6330 | stats->pci_map_fail_cnt++; | |
6331 | stats->mem_freed += (*skb)->truesize; | |
6332 | dev_kfree_skb(*skb); | |
6333 | return -ENOMEM; | |
5d3213cc | 6334 | } |
491abf25 | 6335 | |
1ee6dd77 RB |
6336 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6337 | int size) | |
5d3213cc AR |
6338 | { |
6339 | struct net_device *dev = sp->dev; | |
6340 | if (sp->rxd_mode == RXD_MODE_1) { | |
6341 | rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN); | |
6342 | } else if (sp->rxd_mode == RXD_MODE_3B) { | |
6343 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6344 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
6345 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); | |
5d3213cc AR |
6346 | } |
6347 | } | |
6348 | ||
1ee6dd77 | 6349 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6350 | { |
6351 | int i, j, k, blk_cnt = 0, size; | |
1ee6dd77 | 6352 | struct mac_info * mac_control = &sp->mac_control; |
5d3213cc AR |
6353 | struct config_param *config = &sp->config; |
6354 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 6355 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6356 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6357 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6358 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6359 | ||
6360 | /* Calculate the size based on ring mode */ | |
6361 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6362 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6363 | if (sp->rxd_mode == RXD_MODE_1) | |
6364 | size += NET_IP_ALIGN; | |
6365 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6366 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
5d3213cc AR |
6367 | |
6368 | for (i = 0; i < config->rx_ring_num; i++) { | |
6369 | blk_cnt = config->rx_cfg[i].num_rxd / | |
6370 | (rxd_count[sp->rxd_mode] +1); | |
6371 | ||
6372 | for (j = 0; j < blk_cnt; j++) { | |
6373 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
6374 | rxdp = mac_control->rings[i]. | |
6375 | rx_blocks[j].rxds[k].virt_addr; | |
6d517a27 | 6376 | if(sp->rxd_mode == RXD_MODE_3B) |
5d3213cc | 6377 | ba = &mac_control->rings[i].ba[j][k]; |
ac1f90d6 | 6378 | if (set_rxd_buffer_pointer(sp, rxdp, ba, |
5d3213cc AR |
6379 | &skb,(u64 *)&temp0_64, |
6380 | (u64 *)&temp1_64, | |
ac1f90d6 SS |
6381 | (u64 *)&temp2_64, |
6382 | size) == ENOMEM) { | |
6383 | return 0; | |
6384 | } | |
5d3213cc AR |
6385 | |
6386 | set_rxd_buffer_size(sp, rxdp, size); | |
6387 | wmb(); | |
6388 | /* flip the Ownership bit to Hardware */ | |
6389 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6390 | } | |
6391 | } | |
6392 | } | |
6393 | return 0; | |
6394 | ||
6395 | } | |
6396 | ||
1ee6dd77 | 6397 | static int s2io_add_isr(struct s2io_nic * sp) |
1da177e4 | 6398 | { |
e6a8fee2 | 6399 | int ret = 0; |
c92ca04b | 6400 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6401 | int err = 0; |
1da177e4 | 6402 | |
eccb8628 | 6403 | if (sp->intr_type == MSI_X) |
e6a8fee2 AR |
6404 | ret = s2io_enable_msi_x(sp); |
6405 | if (ret) { | |
6406 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
6407 | sp->intr_type = INTA; | |
20346722 | 6408 | } |
1da177e4 | 6409 | |
1ee6dd77 | 6410 | /* Store the values of the MSIX table in the struct s2io_nic structure */ |
e6a8fee2 | 6411 | store_xmsi_data(sp); |
c92ca04b | 6412 | |
e6a8fee2 | 6413 | /* After proper initialization of H/W, register ISR */ |
e6a8fee2 | 6414 | if (sp->intr_type == MSI_X) { |
fb6a825b | 6415 | int i, msix_tx_cnt=0,msix_rx_cnt=0; |
c92ca04b | 6416 | |
e6a8fee2 AR |
6417 | for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) { |
6418 | if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) { | |
6419 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", | |
6420 | dev->name, i); | |
6421 | err = request_irq(sp->entries[i].vector, | |
6422 | s2io_msix_fifo_handle, 0, sp->desc[i], | |
6423 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6424 | /* If either data or addr is zero print it */ |
6425 | if(!(sp->msix_info[i].addr && | |
6426 | sp->msix_info[i].data)) { | |
6427 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6428 | "Data:0x%lx\n",sp->desc[i], | |
6429 | (unsigned long long) | |
6430 | sp->msix_info[i].addr, | |
6431 | (unsigned long) | |
6432 | ntohl(sp->msix_info[i].data)); | |
6433 | } else { | |
6434 | msix_tx_cnt++; | |
6435 | } | |
e6a8fee2 AR |
6436 | } else { |
6437 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", | |
6438 | dev->name, i); | |
6439 | err = request_irq(sp->entries[i].vector, | |
6440 | s2io_msix_ring_handle, 0, sp->desc[i], | |
6441 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6442 | /* If either data or addr is zero print it */ |
6443 | if(!(sp->msix_info[i].addr && | |
6444 | sp->msix_info[i].data)) { | |
6445 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6446 | "Data:0x%lx\n",sp->desc[i], | |
6447 | (unsigned long long) | |
6448 | sp->msix_info[i].addr, | |
6449 | (unsigned long) | |
6450 | ntohl(sp->msix_info[i].data)); | |
6451 | } else { | |
6452 | msix_rx_cnt++; | |
6453 | } | |
c92ca04b | 6454 | } |
e6a8fee2 AR |
6455 | if (err) { |
6456 | DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration " | |
6457 | "failed\n", dev->name, i); | |
6458 | DBG_PRINT(ERR_DBG, "Returned: %d\n", err); | |
6459 | return -1; | |
6460 | } | |
6461 | sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS; | |
6462 | } | |
fb6a825b SS |
6463 | printk("MSI-X-TX %d entries enabled\n",msix_tx_cnt); |
6464 | printk("MSI-X-RX %d entries enabled\n",msix_rx_cnt); | |
e6a8fee2 AR |
6465 | } |
6466 | if (sp->intr_type == INTA) { | |
6467 | err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED, | |
6468 | sp->name, dev); | |
6469 | if (err) { | |
6470 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
6471 | dev->name); | |
6472 | return -1; | |
6473 | } | |
6474 | } | |
6475 | return 0; | |
6476 | } | |
1ee6dd77 | 6477 | static void s2io_rem_isr(struct s2io_nic * sp) |
e6a8fee2 AR |
6478 | { |
6479 | int cnt = 0; | |
6480 | struct net_device *dev = sp->dev; | |
c77dd43e | 6481 | struct swStat *stats = &sp->mac_control.stats_info->sw_stat; |
e6a8fee2 AR |
6482 | |
6483 | if (sp->intr_type == MSI_X) { | |
6484 | int i; | |
6485 | u16 msi_control; | |
6486 | ||
6487 | for (i=1; (sp->s2io_entries[i].in_use == | |
6488 | MSIX_REGISTERED_SUCCESS); i++) { | |
6489 | int vector = sp->entries[i].vector; | |
6490 | void *arg = sp->s2io_entries[i].arg; | |
6491 | ||
6492 | free_irq(vector, arg); | |
6493 | } | |
c77dd43e SS |
6494 | |
6495 | kfree(sp->entries); | |
6496 | stats->mem_freed += | |
6497 | (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
6498 | kfree(sp->s2io_entries); | |
6499 | stats->mem_freed += | |
6500 | (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
6501 | sp->entries = NULL; | |
6502 | sp->s2io_entries = NULL; | |
6503 | ||
e6a8fee2 AR |
6504 | pci_read_config_word(sp->pdev, 0x42, &msi_control); |
6505 | msi_control &= 0xFFFE; /* Disable MSI */ | |
6506 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
6507 | ||
6508 | pci_disable_msix(sp->pdev); | |
6509 | } else { | |
6510 | free_irq(sp->pdev->irq, dev); | |
c92ca04b AR |
6511 | } |
6512 | /* Waiting till all Interrupt handlers are complete */ | |
6513 | cnt = 0; | |
6514 | do { | |
6515 | msleep(10); | |
6516 | if (!atomic_read(&sp->isr_cnt)) | |
6517 | break; | |
6518 | cnt++; | |
6519 | } while(cnt < 5); | |
e6a8fee2 AR |
6520 | } |
6521 | ||
d796fdb7 | 6522 | static void do_s2io_card_down(struct s2io_nic * sp, int do_io) |
e6a8fee2 AR |
6523 | { |
6524 | int cnt = 0; | |
1ee6dd77 | 6525 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 AR |
6526 | unsigned long flags; |
6527 | register u64 val64 = 0; | |
6528 | ||
6529 | del_timer_sync(&sp->alarm_timer); | |
6530 | /* If s2io_set_link task is executing, wait till it completes. */ | |
6531 | while (test_and_set_bit(0, &(sp->link_state))) { | |
6532 | msleep(50); | |
6533 | } | |
6534 | atomic_set(&sp->card_state, CARD_DOWN); | |
6535 | ||
6536 | /* disable Tx and Rx traffic on the NIC */ | |
d796fdb7 LV |
6537 | if (do_io) |
6538 | stop_nic(sp); | |
e6a8fee2 AR |
6539 | |
6540 | s2io_rem_isr(sp); | |
1da177e4 LT |
6541 | |
6542 | /* Kill tasklet. */ | |
6543 | tasklet_kill(&sp->task); | |
6544 | ||
6545 | /* Check if the device is Quiescent and then Reset the NIC */ | |
d796fdb7 | 6546 | while(do_io) { |
5d3213cc AR |
6547 | /* As per the HW requirement we need to replenish the |
6548 | * receive buffer to avoid the ring bump. Since there is | |
6549 | * no intention of processing the Rx frame at this pointwe are | |
6550 | * just settting the ownership bit of rxd in Each Rx | |
6551 | * ring to HW and set the appropriate buffer size | |
6552 | * based on the ring mode | |
6553 | */ | |
6554 | rxd_owner_bit_reset(sp); | |
6555 | ||
1da177e4 | 6556 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
6557 | if (verify_xena_quiescence(sp)) { |
6558 | if(verify_pcc_quiescent(sp, sp->device_enabled_once)) | |
1da177e4 LT |
6559 | break; |
6560 | } | |
6561 | ||
6562 | msleep(50); | |
6563 | cnt++; | |
6564 | if (cnt == 10) { | |
6565 | DBG_PRINT(ERR_DBG, | |
6566 | "s2io_close:Device not Quiescent "); | |
6567 | DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n", | |
6568 | (unsigned long long) val64); | |
6569 | break; | |
6570 | } | |
d796fdb7 LV |
6571 | } |
6572 | if (do_io) | |
6573 | s2io_reset(sp); | |
1da177e4 | 6574 | |
7ba013ac K |
6575 | spin_lock_irqsave(&sp->tx_lock, flags); |
6576 | /* Free all Tx buffers */ | |
1da177e4 | 6577 | free_tx_buffers(sp); |
7ba013ac K |
6578 | spin_unlock_irqrestore(&sp->tx_lock, flags); |
6579 | ||
6580 | /* Free all Rx buffers */ | |
6581 | spin_lock_irqsave(&sp->rx_lock, flags); | |
1da177e4 | 6582 | free_rx_buffers(sp); |
7ba013ac | 6583 | spin_unlock_irqrestore(&sp->rx_lock, flags); |
1da177e4 | 6584 | |
1da177e4 LT |
6585 | clear_bit(0, &(sp->link_state)); |
6586 | } | |
6587 | ||
d796fdb7 LV |
6588 | static void s2io_card_down(struct s2io_nic * sp) |
6589 | { | |
6590 | do_s2io_card_down(sp, 1); | |
6591 | } | |
6592 | ||
1ee6dd77 | 6593 | static int s2io_card_up(struct s2io_nic * sp) |
1da177e4 | 6594 | { |
cc6e7c44 | 6595 | int i, ret = 0; |
1ee6dd77 | 6596 | struct mac_info *mac_control; |
1da177e4 LT |
6597 | struct config_param *config; |
6598 | struct net_device *dev = (struct net_device *) sp->dev; | |
e6a8fee2 | 6599 | u16 interruptible; |
1da177e4 LT |
6600 | |
6601 | /* Initialize the H/W I/O registers */ | |
6602 | if (init_nic(sp) != 0) { | |
6603 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", | |
6604 | dev->name); | |
e6a8fee2 | 6605 | s2io_reset(sp); |
1da177e4 LT |
6606 | return -ENODEV; |
6607 | } | |
6608 | ||
20346722 K |
6609 | /* |
6610 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
6611 | * Rx ring and initializing buffers into 30 Rx blocks |
6612 | */ | |
6613 | mac_control = &sp->mac_control; | |
6614 | config = &sp->config; | |
6615 | ||
6616 | for (i = 0; i < config->rx_ring_num; i++) { | |
6617 | if ((ret = fill_rx_buffers(sp, i))) { | |
6618 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", | |
6619 | dev->name); | |
6620 | s2io_reset(sp); | |
6621 | free_rx_buffers(sp); | |
6622 | return -ENOMEM; | |
6623 | } | |
6624 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
6625 | atomic_read(&sp->rx_bufs_left[i])); | |
6626 | } | |
19a60522 SS |
6627 | /* Maintain the state prior to the open */ |
6628 | if (sp->promisc_flg) | |
6629 | sp->promisc_flg = 0; | |
6630 | if (sp->m_cast_flg) { | |
6631 | sp->m_cast_flg = 0; | |
6632 | sp->all_multi_pos= 0; | |
6633 | } | |
1da177e4 LT |
6634 | |
6635 | /* Setting its receive mode */ | |
6636 | s2io_set_multicast(dev); | |
6637 | ||
7d3d0439 | 6638 | if (sp->lro) { |
b41477f3 | 6639 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 RA |
6640 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
6641 | /* Check if we can use(if specified) user provided value */ | |
6642 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) | |
6643 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
6644 | } | |
6645 | ||
1da177e4 LT |
6646 | /* Enable Rx Traffic and interrupts on the NIC */ |
6647 | if (start_nic(sp)) { | |
6648 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 6649 | s2io_reset(sp); |
e6a8fee2 AR |
6650 | free_rx_buffers(sp); |
6651 | return -ENODEV; | |
6652 | } | |
6653 | ||
6654 | /* Add interrupt service routine */ | |
6655 | if (s2io_add_isr(sp) != 0) { | |
6656 | if (sp->intr_type == MSI_X) | |
6657 | s2io_rem_isr(sp); | |
6658 | s2io_reset(sp); | |
1da177e4 LT |
6659 | free_rx_buffers(sp); |
6660 | return -ENODEV; | |
6661 | } | |
6662 | ||
25fff88e K |
6663 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
6664 | ||
e6a8fee2 AR |
6665 | /* Enable tasklet for the device */ |
6666 | tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev); | |
6667 | ||
6668 | /* Enable select interrupts */ | |
6669 | if (sp->intr_type != INTA) | |
6670 | en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS); | |
6671 | else { | |
6672 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; | |
6673 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; | |
6674 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
6675 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
6676 | } | |
6677 | ||
6678 | ||
1da177e4 LT |
6679 | atomic_set(&sp->card_state, CARD_UP); |
6680 | return 0; | |
6681 | } | |
6682 | ||
20346722 | 6683 | /** |
1da177e4 LT |
6684 | * s2io_restart_nic - Resets the NIC. |
6685 | * @data : long pointer to the device private structure | |
6686 | * Description: | |
6687 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 6688 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
6689 | * the run time of the watch dog routine which is run holding a |
6690 | * spin lock. | |
6691 | */ | |
6692 | ||
c4028958 | 6693 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 6694 | { |
1ee6dd77 | 6695 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 6696 | struct net_device *dev = sp->dev; |
1da177e4 | 6697 | |
22747d6b FR |
6698 | rtnl_lock(); |
6699 | ||
6700 | if (!netif_running(dev)) | |
6701 | goto out_unlock; | |
6702 | ||
e6a8fee2 | 6703 | s2io_card_down(sp); |
1da177e4 LT |
6704 | if (s2io_card_up(sp)) { |
6705 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6706 | dev->name); | |
6707 | } | |
6708 | netif_wake_queue(dev); | |
6709 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", | |
6710 | dev->name); | |
22747d6b FR |
6711 | out_unlock: |
6712 | rtnl_unlock(); | |
1da177e4 LT |
6713 | } |
6714 | ||
20346722 K |
6715 | /** |
6716 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
6717 | * @dev : Pointer to net device structure |
6718 | * Description: | |
6719 | * This function is triggered if the Tx Queue is stopped | |
6720 | * for a pre-defined amount of time when the Interface is still up. | |
6721 | * If the Interface is jammed in such a situation, the hardware is | |
6722 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
6723 | * overcome any problem that might have been caused in the hardware. | |
6724 | * Return value: | |
6725 | * void | |
6726 | */ | |
6727 | ||
6728 | static void s2io_tx_watchdog(struct net_device *dev) | |
6729 | { | |
1ee6dd77 | 6730 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6731 | |
6732 | if (netif_carrier_ok(dev)) { | |
c53d4945 | 6733 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt++; |
1da177e4 | 6734 | schedule_work(&sp->rst_timer_task); |
bd1034f0 | 6735 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
6736 | } |
6737 | } | |
6738 | ||
6739 | /** | |
6740 | * rx_osm_handler - To perform some OS related operations on SKB. | |
6741 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
6742 | * @skb : the socket buffer pointer. | |
6743 | * @len : length of the packet | |
6744 | * @cksum : FCS checksum of the frame. | |
6745 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 6746 | * Description: |
b41477f3 | 6747 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
6748 | * some OS related operations on the SKB before passing it to the upper |
6749 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
6750 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
6751 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
6752 | * packet error count, frees the SKB and returns error. | |
6753 | * Return value: | |
6754 | * SUCCESS on success and -1 on failure. | |
6755 | */ | |
1ee6dd77 | 6756 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 6757 | { |
1ee6dd77 | 6758 | struct s2io_nic *sp = ring_data->nic; |
1da177e4 | 6759 | struct net_device *dev = (struct net_device *) sp->dev; |
20346722 K |
6760 | struct sk_buff *skb = (struct sk_buff *) |
6761 | ((unsigned long) rxdp->Host_Control); | |
6762 | int ring_no = ring_data->ring_no; | |
1da177e4 | 6763 | u16 l3_csum, l4_csum; |
863c11a9 | 6764 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
1ee6dd77 | 6765 | struct lro *lro; |
f9046eb3 | 6766 | u8 err_mask; |
da6971d8 | 6767 | |
20346722 | 6768 | skb->dev = dev; |
c92ca04b | 6769 | |
863c11a9 | 6770 | if (err) { |
bd1034f0 AR |
6771 | /* Check for parity error */ |
6772 | if (err & 0x1) { | |
6773 | sp->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
6774 | } | |
f9046eb3 OH |
6775 | err_mask = err >> 48; |
6776 | switch(err_mask) { | |
491976b2 SH |
6777 | case 1: |
6778 | sp->mac_control.stats_info->sw_stat. | |
6779 | rx_parity_err_cnt++; | |
6780 | break; | |
6781 | ||
6782 | case 2: | |
6783 | sp->mac_control.stats_info->sw_stat. | |
6784 | rx_abort_cnt++; | |
6785 | break; | |
6786 | ||
6787 | case 3: | |
6788 | sp->mac_control.stats_info->sw_stat. | |
6789 | rx_parity_abort_cnt++; | |
6790 | break; | |
6791 | ||
6792 | case 4: | |
6793 | sp->mac_control.stats_info->sw_stat. | |
6794 | rx_rda_fail_cnt++; | |
6795 | break; | |
6796 | ||
6797 | case 5: | |
6798 | sp->mac_control.stats_info->sw_stat. | |
6799 | rx_unkn_prot_cnt++; | |
6800 | break; | |
6801 | ||
6802 | case 6: | |
6803 | sp->mac_control.stats_info->sw_stat. | |
6804 | rx_fcs_err_cnt++; | |
6805 | break; | |
bd1034f0 | 6806 | |
491976b2 SH |
6807 | case 7: |
6808 | sp->mac_control.stats_info->sw_stat. | |
6809 | rx_buf_size_err_cnt++; | |
6810 | break; | |
6811 | ||
6812 | case 8: | |
6813 | sp->mac_control.stats_info->sw_stat. | |
6814 | rx_rxd_corrupt_cnt++; | |
6815 | break; | |
6816 | ||
6817 | case 15: | |
6818 | sp->mac_control.stats_info->sw_stat. | |
6819 | rx_unkn_err_cnt++; | |
6820 | break; | |
6821 | } | |
863c11a9 AR |
6822 | /* |
6823 | * Drop the packet if bad transfer code. Exception being | |
6824 | * 0x5, which could be due to unsupported IPv6 extension header. | |
6825 | * In this case, we let stack handle the packet. | |
6826 | * Note that in this case, since checksum will be incorrect, | |
6827 | * stack will validate the same. | |
6828 | */ | |
f9046eb3 OH |
6829 | if (err_mask != 0x5) { |
6830 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n", | |
6831 | dev->name, err_mask); | |
863c11a9 | 6832 | sp->stats.rx_crc_errors++; |
491976b2 SH |
6833 | sp->mac_control.stats_info->sw_stat.mem_freed |
6834 | += skb->truesize; | |
863c11a9 AR |
6835 | dev_kfree_skb(skb); |
6836 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
6837 | rxdp->Host_Control = 0; | |
6838 | return 0; | |
6839 | } | |
20346722 | 6840 | } |
1da177e4 | 6841 | |
20346722 | 6842 | /* Updating statistics */ |
573608e4 | 6843 | sp->stats.rx_packets++; |
20346722 | 6844 | rxdp->Host_Control = 0; |
da6971d8 AR |
6845 | if (sp->rxd_mode == RXD_MODE_1) { |
6846 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 6847 | |
da6971d8 AR |
6848 | sp->stats.rx_bytes += len; |
6849 | skb_put(skb, len); | |
6850 | ||
6d517a27 | 6851 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
6852 | int get_block = ring_data->rx_curr_get_info.block_index; |
6853 | int get_off = ring_data->rx_curr_get_info.offset; | |
6854 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
6855 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
6856 | unsigned char *buff = skb_push(skb, buf0_len); | |
6857 | ||
1ee6dd77 | 6858 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 AR |
6859 | sp->stats.rx_bytes += buf0_len + buf2_len; |
6860 | memcpy(buff, ba->ba_0, buf0_len); | |
6d517a27 | 6861 | skb_put(skb, buf2_len); |
da6971d8 | 6862 | } |
20346722 | 6863 | |
7d3d0439 RA |
6864 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || |
6865 | (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
20346722 K |
6866 | (sp->rx_csum)) { |
6867 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); | |
1da177e4 LT |
6868 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
6869 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 6870 | /* |
1da177e4 LT |
6871 | * NIC verifies if the Checksum of the received |
6872 | * frame is Ok or not and accordingly returns | |
6873 | * a flag in the RxD. | |
6874 | */ | |
6875 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
7d3d0439 RA |
6876 | if (sp->lro) { |
6877 | u32 tcp_len; | |
6878 | u8 *tcp; | |
6879 | int ret = 0; | |
6880 | ||
6881 | ret = s2io_club_tcp_session(skb->data, &tcp, | |
6882 | &tcp_len, &lro, rxdp, sp); | |
6883 | switch (ret) { | |
6884 | case 3: /* Begin anew */ | |
6885 | lro->parent = skb; | |
6886 | goto aggregate; | |
6887 | case 1: /* Aggregate */ | |
6888 | { | |
6889 | lro_append_pkt(sp, lro, | |
6890 | skb, tcp_len); | |
6891 | goto aggregate; | |
6892 | } | |
6893 | case 4: /* Flush session */ | |
6894 | { | |
6895 | lro_append_pkt(sp, lro, | |
6896 | skb, tcp_len); | |
6897 | queue_rx_frame(lro->parent); | |
6898 | clear_lro_session(lro); | |
6899 | sp->mac_control.stats_info-> | |
6900 | sw_stat.flush_max_pkts++; | |
6901 | goto aggregate; | |
6902 | } | |
6903 | case 2: /* Flush both */ | |
6904 | lro->parent->data_len = | |
6905 | lro->frags_len; | |
6906 | sp->mac_control.stats_info-> | |
6907 | sw_stat.sending_both++; | |
6908 | queue_rx_frame(lro->parent); | |
6909 | clear_lro_session(lro); | |
6910 | goto send_up; | |
6911 | case 0: /* sessions exceeded */ | |
c92ca04b AR |
6912 | case -1: /* non-TCP or not |
6913 | * L2 aggregatable | |
6914 | */ | |
7d3d0439 RA |
6915 | case 5: /* |
6916 | * First pkt in session not | |
6917 | * L3/L4 aggregatable | |
6918 | */ | |
6919 | break; | |
6920 | default: | |
6921 | DBG_PRINT(ERR_DBG, | |
6922 | "%s: Samadhana!!\n", | |
6923 | __FUNCTION__); | |
6924 | BUG(); | |
6925 | } | |
6926 | } | |
1da177e4 | 6927 | } else { |
20346722 K |
6928 | /* |
6929 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
6930 | * upper layers deal with it. |
6931 | */ | |
6932 | skb->ip_summed = CHECKSUM_NONE; | |
6933 | } | |
6934 | } else { | |
6935 | skb->ip_summed = CHECKSUM_NONE; | |
6936 | } | |
491976b2 | 6937 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
7d3d0439 RA |
6938 | if (!sp->lro) { |
6939 | skb->protocol = eth_type_trans(skb, dev); | |
926930b2 SS |
6940 | if ((sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2) && |
6941 | vlan_strip_flag)) { | |
7d3d0439 | 6942 | /* Queueing the vlan frame to the upper layer */ |
db874e65 SS |
6943 | if (napi) |
6944 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, | |
6945 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
6946 | else | |
6947 | vlan_hwaccel_rx(skb, sp->vlgrp, | |
6948 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
7d3d0439 | 6949 | } else { |
db874e65 SS |
6950 | if (napi) |
6951 | netif_receive_skb(skb); | |
6952 | else | |
6953 | netif_rx(skb); | |
7d3d0439 | 6954 | } |
7d3d0439 RA |
6955 | } else { |
6956 | send_up: | |
6957 | queue_rx_frame(skb); | |
6aa20a22 | 6958 | } |
1da177e4 | 6959 | dev->last_rx = jiffies; |
7d3d0439 | 6960 | aggregate: |
1da177e4 | 6961 | atomic_dec(&sp->rx_bufs_left[ring_no]); |
1da177e4 LT |
6962 | return SUCCESS; |
6963 | } | |
6964 | ||
6965 | /** | |
6966 | * s2io_link - stops/starts the Tx queue. | |
6967 | * @sp : private member of the device structure, which is a pointer to the | |
6968 | * s2io_nic structure. | |
6969 | * @link : inidicates whether link is UP/DOWN. | |
6970 | * Description: | |
6971 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 K |
6972 | * status of the NIC is is down or up. This is called by the Alarm |
6973 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
6974 | * Return value: |
6975 | * void. | |
6976 | */ | |
6977 | ||
1ee6dd77 | 6978 | static void s2io_link(struct s2io_nic * sp, int link) |
1da177e4 LT |
6979 | { |
6980 | struct net_device *dev = (struct net_device *) sp->dev; | |
6981 | ||
6982 | if (link != sp->last_link_state) { | |
6983 | if (link == LINK_DOWN) { | |
6984 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
6985 | netif_carrier_off(dev); | |
491976b2 SH |
6986 | if(sp->mac_control.stats_info->sw_stat.link_up_cnt) |
6987 | sp->mac_control.stats_info->sw_stat.link_up_time = | |
6988 | jiffies - sp->start_time; | |
6989 | sp->mac_control.stats_info->sw_stat.link_down_cnt++; | |
1da177e4 LT |
6990 | } else { |
6991 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
491976b2 SH |
6992 | if (sp->mac_control.stats_info->sw_stat.link_down_cnt) |
6993 | sp->mac_control.stats_info->sw_stat.link_down_time = | |
6994 | jiffies - sp->start_time; | |
6995 | sp->mac_control.stats_info->sw_stat.link_up_cnt++; | |
1da177e4 LT |
6996 | netif_carrier_on(dev); |
6997 | } | |
6998 | } | |
6999 | sp->last_link_state = link; | |
491976b2 | 7000 | sp->start_time = jiffies; |
1da177e4 LT |
7001 | } |
7002 | ||
20346722 K |
7003 | /** |
7004 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
7005 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
7006 | * s2io_nic structure. |
7007 | * Description: | |
7008 | * This function initializes a few of the PCI and PCI-X configuration registers | |
7009 | * with recommended values. | |
7010 | * Return value: | |
7011 | * void | |
7012 | */ | |
7013 | ||
1ee6dd77 | 7014 | static void s2io_init_pci(struct s2io_nic * sp) |
1da177e4 | 7015 | { |
20346722 | 7016 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
7017 | |
7018 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
7019 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 7020 | &(pcix_cmd)); |
1da177e4 | 7021 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7022 | (pcix_cmd | 1)); |
1da177e4 | 7023 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 7024 | &(pcix_cmd)); |
1da177e4 LT |
7025 | |
7026 | /* Set the PErr Response bit in PCI command register. */ | |
7027 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
7028 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
7029 | (pci_cmd | PCI_COMMAND_PARITY)); | |
7030 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
7031 | } |
7032 | ||
9dc737a7 AR |
7033 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) |
7034 | { | |
7035 | if ( tx_fifo_num > 8) { | |
7036 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not " | |
7037 | "supported\n"); | |
7038 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n"); | |
7039 | tx_fifo_num = 8; | |
7040 | } | |
7041 | if ( rx_ring_num > 8) { | |
7042 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not " | |
7043 | "supported\n"); | |
7044 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n"); | |
7045 | rx_ring_num = 8; | |
7046 | } | |
db874e65 SS |
7047 | if (*dev_intr_type != INTA) |
7048 | napi = 0; | |
7049 | ||
9dc737a7 AR |
7050 | #ifndef CONFIG_PCI_MSI |
7051 | if (*dev_intr_type != INTA) { | |
7052 | DBG_PRINT(ERR_DBG, "s2io: This kernel does not support" | |
7053 | "MSI/MSI-X. Defaulting to INTA\n"); | |
7054 | *dev_intr_type = INTA; | |
7055 | } | |
7056 | #else | |
eccb8628 | 7057 | if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) { |
9dc737a7 AR |
7058 | DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " |
7059 | "Defaulting to INTA\n"); | |
7060 | *dev_intr_type = INTA; | |
7061 | } | |
7062 | #endif | |
7063 | if ((*dev_intr_type == MSI_X) && | |
7064 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && | |
7065 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
6aa20a22 | 7066 | DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. " |
9dc737a7 AR |
7067 | "Defaulting to INTA\n"); |
7068 | *dev_intr_type = INTA; | |
7069 | } | |
fb6a825b | 7070 | |
6d517a27 | 7071 | if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { |
9dc737a7 | 7072 | DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); |
6d517a27 VP |
7073 | DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n"); |
7074 | rx_ring_mode = 1; | |
9dc737a7 AR |
7075 | } |
7076 | return SUCCESS; | |
7077 | } | |
7078 | ||
9fc93a41 SS |
7079 | /** |
7080 | * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS | |
7081 | * or Traffic class respectively. | |
7082 | * @nic: device peivate variable | |
7083 | * Description: The function configures the receive steering to | |
7084 | * desired receive ring. | |
7085 | * Return Value: SUCCESS on success and | |
7086 | * '-1' on failure (endian settings incorrect). | |
7087 | */ | |
7088 | static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring) | |
7089 | { | |
7090 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
7091 | register u64 val64 = 0; | |
7092 | ||
7093 | if (ds_codepoint > 63) | |
7094 | return FAILURE; | |
7095 | ||
7096 | val64 = RTS_DS_MEM_DATA(ring); | |
7097 | writeq(val64, &bar0->rts_ds_mem_data); | |
7098 | ||
7099 | val64 = RTS_DS_MEM_CTRL_WE | | |
7100 | RTS_DS_MEM_CTRL_STROBE_NEW_CMD | | |
7101 | RTS_DS_MEM_CTRL_OFFSET(ds_codepoint); | |
7102 | ||
7103 | writeq(val64, &bar0->rts_ds_mem_ctrl); | |
7104 | ||
7105 | return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl, | |
7106 | RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED, | |
7107 | S2IO_BIT_RESET); | |
7108 | } | |
7109 | ||
1da177e4 | 7110 | /** |
20346722 | 7111 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
7112 | * @pdev : structure containing the PCI related information of the device. |
7113 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
7114 | * Description: | |
7115 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 K |
7116 | * All OS related initialization including memory and device structure and |
7117 | * initlaization of the device private variable is done. Also the swapper | |
7118 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
7119 | * registers of the device. |
7120 | * Return value: | |
7121 | * returns 0 on success and negative on failure. | |
7122 | */ | |
7123 | ||
7124 | static int __devinit | |
7125 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
7126 | { | |
1ee6dd77 | 7127 | struct s2io_nic *sp; |
1da177e4 | 7128 | struct net_device *dev; |
1da177e4 LT |
7129 | int i, j, ret; |
7130 | int dma_flag = FALSE; | |
7131 | u32 mac_up, mac_down; | |
7132 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 7133 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 7134 | u16 subid; |
1ee6dd77 | 7135 | struct mac_info *mac_control; |
1da177e4 | 7136 | struct config_param *config; |
541ae68f | 7137 | int mode; |
cc6e7c44 | 7138 | u8 dev_intr_type = intr_type; |
1da177e4 | 7139 | |
9dc737a7 AR |
7140 | if ((ret = s2io_verify_parm(pdev, &dev_intr_type))) |
7141 | return ret; | |
1da177e4 LT |
7142 | |
7143 | if ((ret = pci_enable_device(pdev))) { | |
7144 | DBG_PRINT(ERR_DBG, | |
7145 | "s2io_init_nic: pci_enable_device failed\n"); | |
7146 | return ret; | |
7147 | } | |
7148 | ||
1e7f0bd8 | 7149 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7150 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n"); |
7151 | dma_flag = TRUE; | |
1da177e4 | 7152 | if (pci_set_consistent_dma_mask |
1e7f0bd8 | 7153 | (pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7154 | DBG_PRINT(ERR_DBG, |
7155 | "Unable to obtain 64bit DMA for \ | |
7156 | consistent allocations\n"); | |
7157 | pci_disable_device(pdev); | |
7158 | return -ENOMEM; | |
7159 | } | |
1e7f0bd8 | 7160 | } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
1da177e4 LT |
7161 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n"); |
7162 | } else { | |
7163 | pci_disable_device(pdev); | |
7164 | return -ENOMEM; | |
7165 | } | |
eccb8628 VP |
7166 | if ((ret = pci_request_regions(pdev, s2io_driver_name))) { |
7167 | DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x \n", __FUNCTION__, ret); | |
7168 | pci_disable_device(pdev); | |
7169 | return -ENODEV; | |
1da177e4 LT |
7170 | } |
7171 | ||
1ee6dd77 | 7172 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 LT |
7173 | if (dev == NULL) { |
7174 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
7175 | pci_disable_device(pdev); | |
7176 | pci_release_regions(pdev); | |
7177 | return -ENODEV; | |
7178 | } | |
7179 | ||
7180 | pci_set_master(pdev); | |
7181 | pci_set_drvdata(pdev, dev); | |
7182 | SET_MODULE_OWNER(dev); | |
7183 | SET_NETDEV_DEV(dev, &pdev->dev); | |
7184 | ||
7185 | /* Private member variable initialized to s2io NIC structure */ | |
7186 | sp = dev->priv; | |
1ee6dd77 | 7187 | memset(sp, 0, sizeof(struct s2io_nic)); |
1da177e4 LT |
7188 | sp->dev = dev; |
7189 | sp->pdev = pdev; | |
1da177e4 | 7190 | sp->high_dma_flag = dma_flag; |
1da177e4 | 7191 | sp->device_enabled_once = FALSE; |
da6971d8 AR |
7192 | if (rx_ring_mode == 1) |
7193 | sp->rxd_mode = RXD_MODE_1; | |
7194 | if (rx_ring_mode == 2) | |
7195 | sp->rxd_mode = RXD_MODE_3B; | |
da6971d8 | 7196 | |
cc6e7c44 | 7197 | sp->intr_type = dev_intr_type; |
1da177e4 | 7198 | |
541ae68f K |
7199 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
7200 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) | |
7201 | sp->device_type = XFRAME_II_DEVICE; | |
7202 | else | |
7203 | sp->device_type = XFRAME_I_DEVICE; | |
7204 | ||
7d3d0439 | 7205 | sp->lro = lro; |
6aa20a22 | 7206 | |
1da177e4 LT |
7207 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
7208 | s2io_init_pci(sp); | |
7209 | ||
20346722 | 7210 | /* |
1da177e4 | 7211 | * Setting the device configuration parameters. |
20346722 K |
7212 | * Most of these parameters can be specified by the user during |
7213 | * module insertion as they are module loadable parameters. If | |
7214 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
7215 | * are initialized with default values. |
7216 | */ | |
7217 | mac_control = &sp->mac_control; | |
7218 | config = &sp->config; | |
7219 | ||
7220 | /* Tx side parameters. */ | |
1da177e4 LT |
7221 | config->tx_fifo_num = tx_fifo_num; |
7222 | for (i = 0; i < MAX_TX_FIFOS; i++) { | |
7223 | config->tx_cfg[i].fifo_len = tx_fifo_len[i]; | |
7224 | config->tx_cfg[i].fifo_priority = i; | |
7225 | } | |
7226 | ||
20346722 K |
7227 | /* mapping the QoS priority to the configured fifos */ |
7228 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
7229 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i]; | |
7230 | ||
1da177e4 LT |
7231 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
7232 | for (i = 0; i < config->tx_fifo_num; i++) { | |
7233 | config->tx_cfg[i].f_no_snoop = | |
7234 | (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
7235 | if (config->tx_cfg[i].fifo_len < 65) { | |
7236 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; | |
7237 | break; | |
7238 | } | |
7239 | } | |
fed5eccd AR |
7240 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
7241 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
7242 | |
7243 | /* Rx side parameters. */ | |
1da177e4 LT |
7244 | config->rx_ring_num = rx_ring_num; |
7245 | for (i = 0; i < MAX_RX_RINGS; i++) { | |
7246 | config->rx_cfg[i].num_rxd = rx_ring_sz[i] * | |
da6971d8 | 7247 | (rxd_count[sp->rxd_mode] + 1); |
1da177e4 LT |
7248 | config->rx_cfg[i].ring_priority = i; |
7249 | } | |
7250 | ||
7251 | for (i = 0; i < rx_ring_num; i++) { | |
7252 | config->rx_cfg[i].ring_org = RING_ORG_BUFF1; | |
7253 | config->rx_cfg[i].f_no_snoop = | |
7254 | (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
7255 | } | |
7256 | ||
7257 | /* Setting Mac Control parameters */ | |
7258 | mac_control->rmac_pause_time = rmac_pause_time; | |
7259 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
7260 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
7261 | ||
7262 | ||
7263 | /* Initialize Ring buffer parameters. */ | |
7264 | for (i = 0; i < config->rx_ring_num; i++) | |
7265 | atomic_set(&sp->rx_bufs_left[i], 0); | |
7266 | ||
7ba013ac K |
7267 | /* Initialize the number of ISRs currently running */ |
7268 | atomic_set(&sp->isr_cnt, 0); | |
7269 | ||
1da177e4 LT |
7270 | /* initialize the shared memory used by the NIC and the host */ |
7271 | if (init_shared_mem(sp)) { | |
7272 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", | |
b41477f3 | 7273 | dev->name); |
1da177e4 LT |
7274 | ret = -ENOMEM; |
7275 | goto mem_alloc_failed; | |
7276 | } | |
7277 | ||
7278 | sp->bar0 = ioremap(pci_resource_start(pdev, 0), | |
7279 | pci_resource_len(pdev, 0)); | |
7280 | if (!sp->bar0) { | |
19a60522 | 7281 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
7282 | dev->name); |
7283 | ret = -ENOMEM; | |
7284 | goto bar0_remap_failed; | |
7285 | } | |
7286 | ||
7287 | sp->bar1 = ioremap(pci_resource_start(pdev, 2), | |
7288 | pci_resource_len(pdev, 2)); | |
7289 | if (!sp->bar1) { | |
19a60522 | 7290 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
7291 | dev->name); |
7292 | ret = -ENOMEM; | |
7293 | goto bar1_remap_failed; | |
7294 | } | |
7295 | ||
7296 | dev->irq = pdev->irq; | |
7297 | dev->base_addr = (unsigned long) sp->bar0; | |
7298 | ||
7299 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
7300 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
1ee6dd77 | 7301 | mac_control->tx_FIFO_start[j] = (struct TxFIFO_element __iomem *) |
1da177e4 LT |
7302 | (sp->bar1 + (j * 0x00020000)); |
7303 | } | |
7304 | ||
7305 | /* Driver entry points */ | |
7306 | dev->open = &s2io_open; | |
7307 | dev->stop = &s2io_close; | |
7308 | dev->hard_start_xmit = &s2io_xmit; | |
7309 | dev->get_stats = &s2io_get_stats; | |
7310 | dev->set_multicast_list = &s2io_set_multicast; | |
7311 | dev->do_ioctl = &s2io_ioctl; | |
7312 | dev->change_mtu = &s2io_change_mtu; | |
7313 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
be3a6b02 K |
7314 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
7315 | dev->vlan_rx_register = s2io_vlan_rx_register; | |
20346722 | 7316 | |
1da177e4 LT |
7317 | /* |
7318 | * will use eth_mac_addr() for dev->set_mac_address | |
7319 | * mac address will be set every time dev->open() is called | |
7320 | */ | |
bea3348e | 7321 | netif_napi_add(dev, &sp->napi, s2io_poll, 32); |
1da177e4 | 7322 | |
612eff0e BH |
7323 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7324 | dev->poll_controller = s2io_netpoll; | |
7325 | #endif | |
7326 | ||
1da177e4 LT |
7327 | dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; |
7328 | if (sp->high_dma_flag == TRUE) | |
7329 | dev->features |= NETIF_F_HIGHDMA; | |
1da177e4 | 7330 | dev->features |= NETIF_F_TSO; |
f83ef8c0 | 7331 | dev->features |= NETIF_F_TSO6; |
db874e65 | 7332 | if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) { |
fed5eccd AR |
7333 | dev->features |= NETIF_F_UFO; |
7334 | dev->features |= NETIF_F_HW_CSUM; | |
7335 | } | |
1da177e4 LT |
7336 | |
7337 | dev->tx_timeout = &s2io_tx_watchdog; | |
7338 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; | |
c4028958 DH |
7339 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
7340 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 7341 | |
e960fc5c | 7342 | pci_save_state(sp->pdev); |
1da177e4 LT |
7343 | |
7344 | /* Setting swapper control on the NIC, for proper reset operation */ | |
7345 | if (s2io_set_swapper(sp)) { | |
7346 | DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n", | |
7347 | dev->name); | |
7348 | ret = -EAGAIN; | |
7349 | goto set_swap_failed; | |
7350 | } | |
7351 | ||
541ae68f K |
7352 | /* Verify if the Herc works on the slot its placed into */ |
7353 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7354 | mode = s2io_verify_pci_mode(sp); | |
7355 | if (mode < 0) { | |
7356 | DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__); | |
7357 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); | |
7358 | ret = -EBADSLT; | |
7359 | goto set_swap_failed; | |
7360 | } | |
7361 | } | |
7362 | ||
7363 | /* Not needed for Herc */ | |
7364 | if (sp->device_type & XFRAME_I_DEVICE) { | |
7365 | /* | |
7366 | * Fix for all "FFs" MAC address problems observed on | |
7367 | * Alpha platforms | |
7368 | */ | |
7369 | fix_mac_address(sp); | |
7370 | s2io_reset(sp); | |
7371 | } | |
1da177e4 LT |
7372 | |
7373 | /* | |
1da177e4 LT |
7374 | * MAC address initialization. |
7375 | * For now only one mac address will be read and used. | |
7376 | */ | |
7377 | bar0 = sp->bar0; | |
7378 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
7379 | RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET); | |
7380 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
c92ca04b | 7381 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 | 7382 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET); |
1da177e4 LT |
7383 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
7384 | mac_down = (u32) tmp64; | |
7385 | mac_up = (u32) (tmp64 >> 32); | |
7386 | ||
1da177e4 LT |
7387 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); |
7388 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
7389 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
7390 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
7391 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
7392 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
7393 | ||
1da177e4 LT |
7394 | /* Set the factory defined MAC address initially */ |
7395 | dev->addr_len = ETH_ALEN; | |
7396 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
7397 | ||
c77dd43e SS |
7398 | /* Store the values of the MSIX table in the s2io_nic structure */ |
7399 | store_xmsi_data(sp); | |
b41477f3 AR |
7400 | /* reset Nic and bring it to known state */ |
7401 | s2io_reset(sp); | |
7402 | ||
1da177e4 | 7403 | /* |
20346722 | 7404 | * Initialize the tasklet status and link state flags |
541ae68f | 7405 | * and the card state parameter |
1da177e4 LT |
7406 | */ |
7407 | atomic_set(&(sp->card_state), 0); | |
7408 | sp->tasklet_status = 0; | |
7409 | sp->link_state = 0; | |
7410 | ||
1da177e4 LT |
7411 | /* Initialize spinlocks */ |
7412 | spin_lock_init(&sp->tx_lock); | |
db874e65 SS |
7413 | |
7414 | if (!napi) | |
7415 | spin_lock_init(&sp->put_lock); | |
7ba013ac | 7416 | spin_lock_init(&sp->rx_lock); |
1da177e4 | 7417 | |
20346722 K |
7418 | /* |
7419 | * SXE-002: Configure link and activity LED to init state | |
7420 | * on driver load. | |
1da177e4 LT |
7421 | */ |
7422 | subid = sp->pdev->subsystem_device; | |
7423 | if ((subid & 0xFF) >= 0x07) { | |
7424 | val64 = readq(&bar0->gpio_control); | |
7425 | val64 |= 0x0000800000000000ULL; | |
7426 | writeq(val64, &bar0->gpio_control); | |
7427 | val64 = 0x0411040400000000ULL; | |
7428 | writeq(val64, (void __iomem *) bar0 + 0x2700); | |
7429 | val64 = readq(&bar0->gpio_control); | |
7430 | } | |
7431 | ||
7432 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
7433 | ||
7434 | if (register_netdev(dev)) { | |
7435 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
7436 | ret = -ENODEV; | |
7437 | goto register_failed; | |
7438 | } | |
9dc737a7 | 7439 | s2io_vpd_read(sp); |
0c61ed5f | 7440 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n"); |
b41477f3 | 7441 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, |
44c10138 | 7442 | sp->product_name, pdev->revision); |
b41477f3 AR |
7443 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, |
7444 | s2io_driver_version); | |
9dc737a7 | 7445 | DBG_PRINT(ERR_DBG, "%s: MAC ADDR: " |
19a60522 | 7446 | "%02x:%02x:%02x:%02x:%02x:%02x", dev->name, |
541ae68f K |
7447 | sp->def_mac_addr[0].mac_addr[0], |
7448 | sp->def_mac_addr[0].mac_addr[1], | |
7449 | sp->def_mac_addr[0].mac_addr[2], | |
7450 | sp->def_mac_addr[0].mac_addr[3], | |
7451 | sp->def_mac_addr[0].mac_addr[4], | |
7452 | sp->def_mac_addr[0].mac_addr[5]); | |
19a60522 | 7453 | DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num); |
9dc737a7 | 7454 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 7455 | mode = s2io_print_pci_mode(sp); |
541ae68f | 7456 | if (mode < 0) { |
9dc737a7 | 7457 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); |
541ae68f | 7458 | ret = -EBADSLT; |
9dc737a7 | 7459 | unregister_netdev(dev); |
541ae68f K |
7460 | goto set_swap_failed; |
7461 | } | |
541ae68f | 7462 | } |
9dc737a7 AR |
7463 | switch(sp->rxd_mode) { |
7464 | case RXD_MODE_1: | |
7465 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
7466 | dev->name); | |
7467 | break; | |
7468 | case RXD_MODE_3B: | |
7469 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
7470 | dev->name); | |
7471 | break; | |
9dc737a7 | 7472 | } |
db874e65 SS |
7473 | |
7474 | if (napi) | |
7475 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); | |
9dc737a7 AR |
7476 | switch(sp->intr_type) { |
7477 | case INTA: | |
7478 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
7479 | break; | |
9dc737a7 AR |
7480 | case MSI_X: |
7481 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
7482 | break; | |
7483 | } | |
7d3d0439 RA |
7484 | if (sp->lro) |
7485 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", | |
9dc737a7 | 7486 | dev->name); |
db874e65 SS |
7487 | if (ufo) |
7488 | DBG_PRINT(ERR_DBG, "%s: UDP Fragmentation Offload(UFO)" | |
7489 | " enabled\n", dev->name); | |
7ba013ac | 7490 | /* Initialize device name */ |
9dc737a7 | 7491 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 7492 | |
b6e3f982 K |
7493 | /* Initialize bimodal Interrupts */ |
7494 | sp->config.bimodal = bimodal; | |
7495 | if (!(sp->device_type & XFRAME_II_DEVICE) && bimodal) { | |
7496 | sp->config.bimodal = 0; | |
7497 | DBG_PRINT(ERR_DBG,"%s:Bimodal intr not supported by Xframe I\n", | |
7498 | dev->name); | |
7499 | } | |
7500 | ||
20346722 K |
7501 | /* |
7502 | * Make Link state as off at this point, when the Link change | |
7503 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
7504 | * the right state. |
7505 | */ | |
7506 | netif_carrier_off(dev); | |
1da177e4 LT |
7507 | |
7508 | return 0; | |
7509 | ||
7510 | register_failed: | |
7511 | set_swap_failed: | |
7512 | iounmap(sp->bar1); | |
7513 | bar1_remap_failed: | |
7514 | iounmap(sp->bar0); | |
7515 | bar0_remap_failed: | |
7516 | mem_alloc_failed: | |
7517 | free_shared_mem(sp); | |
7518 | pci_disable_device(pdev); | |
eccb8628 | 7519 | pci_release_regions(pdev); |
1da177e4 LT |
7520 | pci_set_drvdata(pdev, NULL); |
7521 | free_netdev(dev); | |
7522 | ||
7523 | return ret; | |
7524 | } | |
7525 | ||
7526 | /** | |
20346722 | 7527 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 7528 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 7529 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 7530 | * PCI device and free up all resource held up by the device. This could |
20346722 | 7531 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
7532 | * from memory. |
7533 | */ | |
7534 | ||
7535 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
7536 | { | |
7537 | struct net_device *dev = | |
7538 | (struct net_device *) pci_get_drvdata(pdev); | |
1ee6dd77 | 7539 | struct s2io_nic *sp; |
1da177e4 LT |
7540 | |
7541 | if (dev == NULL) { | |
7542 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
7543 | return; | |
7544 | } | |
7545 | ||
22747d6b FR |
7546 | flush_scheduled_work(); |
7547 | ||
1da177e4 LT |
7548 | sp = dev->priv; |
7549 | unregister_netdev(dev); | |
7550 | ||
7551 | free_shared_mem(sp); | |
7552 | iounmap(sp->bar0); | |
7553 | iounmap(sp->bar1); | |
eccb8628 | 7554 | pci_release_regions(pdev); |
1da177e4 | 7555 | pci_set_drvdata(pdev, NULL); |
1da177e4 | 7556 | free_netdev(dev); |
19a60522 | 7557 | pci_disable_device(pdev); |
1da177e4 LT |
7558 | } |
7559 | ||
7560 | /** | |
7561 | * s2io_starter - Entry point for the driver | |
7562 | * Description: This function is the entry point for the driver. It verifies | |
7563 | * the module loadable parameters and initializes PCI configuration space. | |
7564 | */ | |
7565 | ||
7566 | int __init s2io_starter(void) | |
7567 | { | |
29917620 | 7568 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
7569 | } |
7570 | ||
7571 | /** | |
20346722 | 7572 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
7573 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
7574 | */ | |
7575 | ||
372cc597 | 7576 | static __exit void s2io_closer(void) |
1da177e4 LT |
7577 | { |
7578 | pci_unregister_driver(&s2io_driver); | |
7579 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
7580 | } | |
7581 | ||
7582 | module_init(s2io_starter); | |
7583 | module_exit(s2io_closer); | |
7d3d0439 | 7584 | |
6aa20a22 | 7585 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
1ee6dd77 | 7586 | struct tcphdr **tcp, struct RxD_t *rxdp) |
7d3d0439 RA |
7587 | { |
7588 | int ip_off; | |
7589 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
7590 | ||
7591 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
7592 | DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n", | |
7593 | __FUNCTION__); | |
7594 | return -1; | |
7595 | } | |
7596 | ||
7597 | /* TODO: | |
7598 | * By default the VLAN field in the MAC is stripped by the card, if this | |
7599 | * feature is turned off in rx_pa_cfg register, then the ip_off field | |
7600 | * has to be shifted by a further 2 bytes | |
7601 | */ | |
7602 | switch (l2_type) { | |
7603 | case 0: /* DIX type */ | |
7604 | case 4: /* DIX type with VLAN */ | |
7605 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; | |
7606 | break; | |
7607 | /* LLC, SNAP etc are considered non-mergeable */ | |
7608 | default: | |
7609 | return -1; | |
7610 | } | |
7611 | ||
7612 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
7613 | ip_len = (u8)((*ip)->ihl); | |
7614 | ip_len <<= 2; | |
7615 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
7616 | ||
7617 | return 0; | |
7618 | } | |
7619 | ||
1ee6dd77 | 7620 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7621 | struct tcphdr *tcp) |
7622 | { | |
7623 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7624 | if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) || | |
7625 | (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest)) | |
7626 | return -1; | |
7627 | return 0; | |
7628 | } | |
7629 | ||
7630 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
7631 | { | |
7632 | return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2)); | |
7633 | } | |
7634 | ||
1ee6dd77 | 7635 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
7d3d0439 RA |
7636 | struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len) |
7637 | { | |
7638 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7639 | lro->l2h = l2h; | |
7640 | lro->iph = ip; | |
7641 | lro->tcph = tcp; | |
7642 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
7643 | lro->tcp_ack = ntohl(tcp->ack_seq); | |
7644 | lro->sg_num = 1; | |
7645 | lro->total_len = ntohs(ip->tot_len); | |
7646 | lro->frags_len = 0; | |
6aa20a22 | 7647 | /* |
7d3d0439 RA |
7648 | * check if we saw TCP timestamp. Other consistency checks have |
7649 | * already been done. | |
7650 | */ | |
7651 | if (tcp->doff == 8) { | |
7652 | u32 *ptr; | |
7653 | ptr = (u32 *)(tcp+1); | |
7654 | lro->saw_ts = 1; | |
7655 | lro->cur_tsval = *(ptr+1); | |
7656 | lro->cur_tsecr = *(ptr+2); | |
7657 | } | |
7658 | lro->in_use = 1; | |
7659 | } | |
7660 | ||
1ee6dd77 | 7661 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
7662 | { |
7663 | struct iphdr *ip = lro->iph; | |
7664 | struct tcphdr *tcp = lro->tcph; | |
bd4f3ae1 | 7665 | __sum16 nchk; |
1ee6dd77 | 7666 | struct stat_block *statinfo = sp->mac_control.stats_info; |
7d3d0439 RA |
7667 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7668 | ||
7669 | /* Update L3 header */ | |
7670 | ip->tot_len = htons(lro->total_len); | |
7671 | ip->check = 0; | |
7672 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
7673 | ip->check = nchk; | |
7674 | ||
7675 | /* Update L4 header */ | |
7676 | tcp->ack_seq = lro->tcp_ack; | |
7677 | tcp->window = lro->window; | |
7678 | ||
7679 | /* Update tsecr field if this session has timestamps enabled */ | |
7680 | if (lro->saw_ts) { | |
7681 | u32 *ptr = (u32 *)(tcp + 1); | |
7682 | *(ptr+2) = lro->cur_tsecr; | |
7683 | } | |
7684 | ||
7685 | /* Update counters required for calculation of | |
7686 | * average no. of packets aggregated. | |
7687 | */ | |
7688 | statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num; | |
7689 | statinfo->sw_stat.num_aggregations++; | |
7690 | } | |
7691 | ||
1ee6dd77 | 7692 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7693 | struct tcphdr *tcp, u32 l4_pyld) |
7694 | { | |
7695 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7696 | lro->total_len += l4_pyld; | |
7697 | lro->frags_len += l4_pyld; | |
7698 | lro->tcp_next_seq += l4_pyld; | |
7699 | lro->sg_num++; | |
7700 | ||
7701 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
7702 | lro->tcp_ack = tcp->ack_seq; | |
7703 | lro->window = tcp->window; | |
6aa20a22 | 7704 | |
7d3d0439 RA |
7705 | if (lro->saw_ts) { |
7706 | u32 *ptr; | |
7707 | /* Update tsecr and tsval from this packet */ | |
7708 | ptr = (u32 *) (tcp + 1); | |
6aa20a22 | 7709 | lro->cur_tsval = *(ptr + 1); |
7d3d0439 RA |
7710 | lro->cur_tsecr = *(ptr + 2); |
7711 | } | |
7712 | } | |
7713 | ||
1ee6dd77 | 7714 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
7715 | struct tcphdr *tcp, u32 tcp_pyld_len) |
7716 | { | |
7d3d0439 RA |
7717 | u8 *ptr; |
7718 | ||
79dc1901 AM |
7719 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7720 | ||
7d3d0439 RA |
7721 | if (!tcp_pyld_len) { |
7722 | /* Runt frame or a pure ack */ | |
7723 | return -1; | |
7724 | } | |
7725 | ||
7726 | if (ip->ihl != 5) /* IP has options */ | |
7727 | return -1; | |
7728 | ||
75c30b13 AR |
7729 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
7730 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
7731 | return -1; | |
7732 | ||
7733 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
7d3d0439 | 7734 | if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || |
75c30b13 | 7735 | tcp->ece || tcp->cwr || !tcp->ack) { |
7d3d0439 RA |
7736 | /* |
7737 | * Currently recognize only the ack control word and | |
7738 | * any other control field being set would result in | |
7739 | * flushing the LRO session | |
7740 | */ | |
7741 | return -1; | |
7742 | } | |
7743 | ||
6aa20a22 | 7744 | /* |
7d3d0439 RA |
7745 | * Allow only one TCP timestamp option. Don't aggregate if |
7746 | * any other options are detected. | |
7747 | */ | |
7748 | if (tcp->doff != 5 && tcp->doff != 8) | |
7749 | return -1; | |
7750 | ||
7751 | if (tcp->doff == 8) { | |
6aa20a22 | 7752 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
7753 | while (*ptr == TCPOPT_NOP) |
7754 | ptr++; | |
7755 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
7756 | return -1; | |
7757 | ||
7758 | /* Ensure timestamp value increases monotonically */ | |
7759 | if (l_lro) | |
7760 | if (l_lro->cur_tsval > *((u32 *)(ptr+2))) | |
7761 | return -1; | |
7762 | ||
7763 | /* timestamp echo reply should be non-zero */ | |
6aa20a22 | 7764 | if (*((u32 *)(ptr+6)) == 0) |
7d3d0439 RA |
7765 | return -1; |
7766 | } | |
7767 | ||
7768 | return 0; | |
7769 | } | |
7770 | ||
7771 | static int | |
1ee6dd77 RB |
7772 | s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro, |
7773 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
7774 | { |
7775 | struct iphdr *ip; | |
7776 | struct tcphdr *tcph; | |
7777 | int ret = 0, i; | |
7778 | ||
7779 | if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, | |
7780 | rxdp))) { | |
7781 | DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n", | |
7782 | ip->saddr, ip->daddr); | |
7783 | } else { | |
7784 | return ret; | |
7785 | } | |
7786 | ||
7787 | tcph = (struct tcphdr *)*tcp; | |
7788 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
7789 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7790 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7791 | if (l_lro->in_use) { |
7792 | if (check_for_socket_match(l_lro, ip, tcph)) | |
7793 | continue; | |
7794 | /* Sock pair matched */ | |
7795 | *lro = l_lro; | |
7796 | ||
7797 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
7798 | DBG_PRINT(INFO_DBG, "%s:Out of order. expected " | |
7799 | "0x%x, actual 0x%x\n", __FUNCTION__, | |
7800 | (*lro)->tcp_next_seq, | |
7801 | ntohl(tcph->seq)); | |
7802 | ||
7803 | sp->mac_control.stats_info-> | |
7804 | sw_stat.outof_sequence_pkts++; | |
7805 | ret = 2; | |
7806 | break; | |
7807 | } | |
7808 | ||
7809 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len)) | |
7810 | ret = 1; /* Aggregate */ | |
7811 | else | |
7812 | ret = 2; /* Flush both */ | |
7813 | break; | |
7814 | } | |
7815 | } | |
7816 | ||
7817 | if (ret == 0) { | |
7818 | /* Before searching for available LRO objects, | |
7819 | * check if the pkt is L3/L4 aggregatable. If not | |
7820 | * don't create new LRO session. Just send this | |
7821 | * packet up. | |
7822 | */ | |
7823 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) { | |
7824 | return 5; | |
7825 | } | |
7826 | ||
7827 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7828 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7829 | if (!(l_lro->in_use)) { |
7830 | *lro = l_lro; | |
7831 | ret = 3; /* Begin anew */ | |
7832 | break; | |
7833 | } | |
7834 | } | |
7835 | } | |
7836 | ||
7837 | if (ret == 0) { /* sessions exceeded */ | |
7838 | DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n", | |
7839 | __FUNCTION__); | |
7840 | *lro = NULL; | |
7841 | return ret; | |
7842 | } | |
7843 | ||
7844 | switch (ret) { | |
7845 | case 3: | |
7846 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len); | |
7847 | break; | |
7848 | case 2: | |
7849 | update_L3L4_header(sp, *lro); | |
7850 | break; | |
7851 | case 1: | |
7852 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
7853 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7854 | update_L3L4_header(sp, *lro); | |
7855 | ret = 4; /* Flush the LRO */ | |
7856 | } | |
7857 | break; | |
7858 | default: | |
7859 | DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n", | |
7860 | __FUNCTION__); | |
7861 | break; | |
7862 | } | |
7863 | ||
7864 | return ret; | |
7865 | } | |
7866 | ||
1ee6dd77 | 7867 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 7868 | { |
1ee6dd77 | 7869 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
7870 | |
7871 | memset(lro, 0, lro_struct_size); | |
7872 | } | |
7873 | ||
7874 | static void queue_rx_frame(struct sk_buff *skb) | |
7875 | { | |
7876 | struct net_device *dev = skb->dev; | |
7877 | ||
7878 | skb->protocol = eth_type_trans(skb, dev); | |
db874e65 SS |
7879 | if (napi) |
7880 | netif_receive_skb(skb); | |
7881 | else | |
7882 | netif_rx(skb); | |
7d3d0439 RA |
7883 | } |
7884 | ||
1ee6dd77 RB |
7885 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
7886 | struct sk_buff *skb, | |
7d3d0439 RA |
7887 | u32 tcp_len) |
7888 | { | |
75c30b13 | 7889 | struct sk_buff *first = lro->parent; |
7d3d0439 RA |
7890 | |
7891 | first->len += tcp_len; | |
7892 | first->data_len = lro->frags_len; | |
7893 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
7894 | if (skb_shinfo(first)->frag_list) |
7895 | lro->last_frag->next = skb; | |
7d3d0439 RA |
7896 | else |
7897 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 7898 | first->truesize += skb->truesize; |
75c30b13 | 7899 | lro->last_frag = skb; |
7d3d0439 RA |
7900 | sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; |
7901 | return; | |
7902 | } | |
d796fdb7 LV |
7903 | |
7904 | /** | |
7905 | * s2io_io_error_detected - called when PCI error is detected | |
7906 | * @pdev: Pointer to PCI device | |
8453d43f | 7907 | * @state: The current pci connection state |
d796fdb7 LV |
7908 | * |
7909 | * This function is called after a PCI bus error affecting | |
7910 | * this device has been detected. | |
7911 | */ | |
7912 | static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, | |
7913 | pci_channel_state_t state) | |
7914 | { | |
7915 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7916 | struct s2io_nic *sp = netdev->priv; | |
7917 | ||
7918 | netif_device_detach(netdev); | |
7919 | ||
7920 | if (netif_running(netdev)) { | |
7921 | /* Bring down the card, while avoiding PCI I/O */ | |
7922 | do_s2io_card_down(sp, 0); | |
d796fdb7 LV |
7923 | } |
7924 | pci_disable_device(pdev); | |
7925 | ||
7926 | return PCI_ERS_RESULT_NEED_RESET; | |
7927 | } | |
7928 | ||
7929 | /** | |
7930 | * s2io_io_slot_reset - called after the pci bus has been reset. | |
7931 | * @pdev: Pointer to PCI device | |
7932 | * | |
7933 | * Restart the card from scratch, as if from a cold-boot. | |
7934 | * At this point, the card has exprienced a hard reset, | |
7935 | * followed by fixups by BIOS, and has its config space | |
7936 | * set up identically to what it was at cold boot. | |
7937 | */ | |
7938 | static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev) | |
7939 | { | |
7940 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7941 | struct s2io_nic *sp = netdev->priv; | |
7942 | ||
7943 | if (pci_enable_device(pdev)) { | |
7944 | printk(KERN_ERR "s2io: " | |
7945 | "Cannot re-enable PCI device after reset.\n"); | |
7946 | return PCI_ERS_RESULT_DISCONNECT; | |
7947 | } | |
7948 | ||
7949 | pci_set_master(pdev); | |
7950 | s2io_reset(sp); | |
7951 | ||
7952 | return PCI_ERS_RESULT_RECOVERED; | |
7953 | } | |
7954 | ||
7955 | /** | |
7956 | * s2io_io_resume - called when traffic can start flowing again. | |
7957 | * @pdev: Pointer to PCI device | |
7958 | * | |
7959 | * This callback is called when the error recovery driver tells | |
7960 | * us that its OK to resume normal operation. | |
7961 | */ | |
7962 | static void s2io_io_resume(struct pci_dev *pdev) | |
7963 | { | |
7964 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7965 | struct s2io_nic *sp = netdev->priv; | |
7966 | ||
7967 | if (netif_running(netdev)) { | |
7968 | if (s2io_card_up(sp)) { | |
7969 | printk(KERN_ERR "s2io: " | |
7970 | "Can't bring device back up after reset.\n"); | |
7971 | return; | |
7972 | } | |
7973 | ||
7974 | if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) { | |
7975 | s2io_card_down(sp); | |
7976 | printk(KERN_ERR "s2io: " | |
7977 | "Can't resetore mac addr after reset.\n"); | |
7978 | return; | |
7979 | } | |
7980 | } | |
7981 | ||
7982 | netif_device_attach(netdev); | |
7983 | netif_wake_queue(netdev); | |
7984 | } |