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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 AR |
39 | * intr_type: This defines the type of interrupt. The values can be 0(INTA), |
40 | * 1(MSI), 2(MSI_X). Default value is '0(INTA)' | |
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 | ||
491976b2 | 87 | #define DRV_VERSION "2.0.23.1" |
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"), |
491976b2 SH |
285 | ("watchdog_timer_cnt"), |
286 | ("mem_allocated"), | |
287 | ("mem_freed"), | |
288 | ("link_up_cnt"), | |
289 | ("link_down_cnt"), | |
290 | ("link_up_time"), | |
291 | ("link_down_time"), | |
292 | ("tx_tcode_buf_abort_cnt"), | |
293 | ("tx_tcode_desc_abort_cnt"), | |
294 | ("tx_tcode_parity_err_cnt"), | |
295 | ("tx_tcode_link_loss_cnt"), | |
296 | ("tx_tcode_list_proc_err_cnt"), | |
297 | ("rx_tcode_parity_err_cnt"), | |
298 | ("rx_tcode_abort_cnt"), | |
299 | ("rx_tcode_parity_abort_cnt"), | |
300 | ("rx_tcode_rda_fail_cnt"), | |
301 | ("rx_tcode_unkn_prot_cnt"), | |
302 | ("rx_tcode_fcs_err_cnt"), | |
303 | ("rx_tcode_buf_size_err_cnt"), | |
304 | ("rx_tcode_rxd_corrupt_cnt"), | |
305 | ("rx_tcode_unkn_err_cnt") | |
1da177e4 LT |
306 | }; |
307 | ||
fa1f0cb3 SS |
308 | #define S2IO_XENA_STAT_LEN sizeof(ethtool_xena_stats_keys)/ ETH_GSTRING_LEN |
309 | #define S2IO_ENHANCED_STAT_LEN sizeof(ethtool_enhanced_stats_keys)/ \ | |
310 | ETH_GSTRING_LEN | |
311 | #define S2IO_DRIVER_STAT_LEN sizeof(ethtool_driver_stats_keys)/ ETH_GSTRING_LEN | |
312 | ||
313 | #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN ) | |
314 | #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN ) | |
315 | ||
316 | #define XFRAME_I_STAT_STRINGS_LEN ( XFRAME_I_STAT_LEN * ETH_GSTRING_LEN ) | |
317 | #define XFRAME_II_STAT_STRINGS_LEN ( XFRAME_II_STAT_LEN * ETH_GSTRING_LEN ) | |
1da177e4 LT |
318 | |
319 | #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN | |
320 | #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN | |
321 | ||
25fff88e K |
322 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
323 | init_timer(&timer); \ | |
324 | timer.function = handle; \ | |
325 | timer.data = (unsigned long) arg; \ | |
326 | mod_timer(&timer, (jiffies + exp)) \ | |
327 | ||
be3a6b02 K |
328 | /* Add the vlan */ |
329 | static void s2io_vlan_rx_register(struct net_device *dev, | |
330 | struct vlan_group *grp) | |
331 | { | |
1ee6dd77 | 332 | struct s2io_nic *nic = dev->priv; |
be3a6b02 K |
333 | unsigned long flags; |
334 | ||
335 | spin_lock_irqsave(&nic->tx_lock, flags); | |
336 | nic->vlgrp = grp; | |
337 | spin_unlock_irqrestore(&nic->tx_lock, flags); | |
338 | } | |
339 | ||
926930b2 | 340 | /* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */ |
7b490343 | 341 | static int vlan_strip_flag; |
926930b2 | 342 | |
20346722 | 343 | /* |
1da177e4 LT |
344 | * Constants to be programmed into the Xena's registers, to configure |
345 | * the XAUI. | |
346 | */ | |
347 | ||
1da177e4 | 348 | #define END_SIGN 0x0 |
f71e1309 | 349 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 350 | /* Set address */ |
e960fc5c | 351 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 352 | /* Write data */ |
e960fc5c | 353 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f K |
354 | /* Set address */ |
355 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
356 | /* Write data */ | |
357 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
358 | /* Set address */ | |
e960fc5c | 359 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
360 | /* Write data */ | |
361 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
362 | /* Set address */ | |
541ae68f K |
363 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
364 | /* Write data */ | |
365 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
366 | /* Done */ | |
367 | END_SIGN | |
368 | }; | |
369 | ||
f71e1309 | 370 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 371 | /* Set address */ |
1da177e4 | 372 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
373 | /* Write data */ |
374 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
375 | /* Set address */ | |
376 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
377 | /* Write data */ | |
378 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
379 | /* Set address */ | |
1da177e4 | 380 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
381 | /* Write data */ |
382 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
383 | END_SIGN |
384 | }; | |
385 | ||
20346722 | 386 | /* |
1da177e4 LT |
387 | * Constants for Fixing the MacAddress problem seen mostly on |
388 | * Alpha machines. | |
389 | */ | |
f71e1309 | 390 | static const u64 fix_mac[] = { |
1da177e4 LT |
391 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
392 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
393 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
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, 0x0000600000000000ULL, | |
404 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
405 | END_SIGN | |
406 | }; | |
407 | ||
b41477f3 AR |
408 | MODULE_LICENSE("GPL"); |
409 | MODULE_VERSION(DRV_VERSION); | |
410 | ||
411 | ||
1da177e4 | 412 | /* Module Loadable parameters. */ |
b41477f3 AR |
413 | S2IO_PARM_INT(tx_fifo_num, 1); |
414 | S2IO_PARM_INT(rx_ring_num, 1); | |
415 | ||
416 | ||
417 | S2IO_PARM_INT(rx_ring_mode, 1); | |
418 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
419 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
420 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
421 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
422 | S2IO_PARM_INT(shared_splits, 0); | |
423 | S2IO_PARM_INT(tmac_util_period, 5); | |
424 | S2IO_PARM_INT(rmac_util_period, 5); | |
425 | S2IO_PARM_INT(bimodal, 0); | |
426 | S2IO_PARM_INT(l3l4hdr_size, 128); | |
303bcb4b | 427 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 428 | S2IO_PARM_INT(rxsync_frequency, 3); |
cc6e7c44 | 429 | /* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */ |
b41477f3 | 430 | S2IO_PARM_INT(intr_type, 0); |
7d3d0439 | 431 | /* Large receive offload feature */ |
b41477f3 | 432 | S2IO_PARM_INT(lro, 0); |
7d3d0439 RA |
433 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
434 | * aggregation happens until we hit max IP pkt size(64K) | |
435 | */ | |
b41477f3 | 436 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 437 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
438 | |
439 | S2IO_PARM_INT(napi, 1); | |
440 | S2IO_PARM_INT(ufo, 0); | |
926930b2 | 441 | S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC); |
b41477f3 AR |
442 | |
443 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
444 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; | |
445 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = | |
446 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; | |
447 | static unsigned int rts_frm_len[MAX_RX_RINGS] = | |
448 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; | |
449 | ||
450 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
451 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
452 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 453 | |
20346722 | 454 | /* |
1da177e4 | 455 | * S2IO device table. |
20346722 | 456 | * This table lists all the devices that this driver supports. |
1da177e4 LT |
457 | */ |
458 | static struct pci_device_id s2io_tbl[] __devinitdata = { | |
459 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, | |
460 | PCI_ANY_ID, PCI_ANY_ID}, | |
461 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
462 | PCI_ANY_ID, PCI_ANY_ID}, | |
463 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
20346722 K |
464 | PCI_ANY_ID, PCI_ANY_ID}, |
465 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
466 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
467 | {0,} |
468 | }; | |
469 | ||
470 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
471 | ||
d796fdb7 LV |
472 | static struct pci_error_handlers s2io_err_handler = { |
473 | .error_detected = s2io_io_error_detected, | |
474 | .slot_reset = s2io_io_slot_reset, | |
475 | .resume = s2io_io_resume, | |
476 | }; | |
477 | ||
1da177e4 LT |
478 | static struct pci_driver s2io_driver = { |
479 | .name = "S2IO", | |
480 | .id_table = s2io_tbl, | |
481 | .probe = s2io_init_nic, | |
482 | .remove = __devexit_p(s2io_rem_nic), | |
d796fdb7 | 483 | .err_handler = &s2io_err_handler, |
1da177e4 LT |
484 | }; |
485 | ||
486 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
487 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
488 | ||
489 | /** | |
490 | * init_shared_mem - Allocation and Initialization of Memory | |
491 | * @nic: Device private variable. | |
20346722 K |
492 | * Description: The function allocates all the memory areas shared |
493 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
494 | * Rx descriptors and the statistics block. |
495 | */ | |
496 | ||
497 | static int init_shared_mem(struct s2io_nic *nic) | |
498 | { | |
499 | u32 size; | |
500 | void *tmp_v_addr, *tmp_v_addr_next; | |
501 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 502 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 503 | int i, j, blk_cnt; |
1da177e4 LT |
504 | int lst_size, lst_per_page; |
505 | struct net_device *dev = nic->dev; | |
8ae418cf | 506 | unsigned long tmp; |
1ee6dd77 | 507 | struct buffAdd *ba; |
1da177e4 | 508 | |
1ee6dd77 | 509 | struct mac_info *mac_control; |
1da177e4 | 510 | struct config_param *config; |
491976b2 | 511 | unsigned long long mem_allocated = 0; |
1da177e4 LT |
512 | |
513 | mac_control = &nic->mac_control; | |
514 | config = &nic->config; | |
515 | ||
516 | ||
517 | /* Allocation and initialization of TXDLs in FIOFs */ | |
518 | size = 0; | |
519 | for (i = 0; i < config->tx_fifo_num; i++) { | |
520 | size += config->tx_cfg[i].fifo_len; | |
521 | } | |
522 | if (size > MAX_AVAILABLE_TXDS) { | |
b41477f3 | 523 | DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); |
0b1f7ebe | 524 | DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); |
b41477f3 | 525 | return -EINVAL; |
1da177e4 LT |
526 | } |
527 | ||
1ee6dd77 | 528 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
529 | lst_per_page = PAGE_SIZE / lst_size; |
530 | ||
531 | for (i = 0; i < config->tx_fifo_num; i++) { | |
532 | int fifo_len = config->tx_cfg[i].fifo_len; | |
1ee6dd77 | 533 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
20346722 K |
534 | mac_control->fifos[i].list_info = kmalloc(list_holder_size, |
535 | GFP_KERNEL); | |
536 | if (!mac_control->fifos[i].list_info) { | |
0c61ed5f | 537 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
538 | "Malloc failed for list_info\n"); |
539 | return -ENOMEM; | |
540 | } | |
491976b2 | 541 | mem_allocated += list_holder_size; |
20346722 | 542 | memset(mac_control->fifos[i].list_info, 0, list_holder_size); |
1da177e4 LT |
543 | } |
544 | for (i = 0; i < config->tx_fifo_num; i++) { | |
545 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
546 | lst_per_page); | |
20346722 K |
547 | mac_control->fifos[i].tx_curr_put_info.offset = 0; |
548 | mac_control->fifos[i].tx_curr_put_info.fifo_len = | |
1da177e4 | 549 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
550 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
551 | mac_control->fifos[i].tx_curr_get_info.fifo_len = | |
1da177e4 | 552 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
553 | mac_control->fifos[i].fifo_no = i; |
554 | mac_control->fifos[i].nic = nic; | |
fed5eccd | 555 | mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 2; |
20346722 | 556 | |
1da177e4 LT |
557 | for (j = 0; j < page_num; j++) { |
558 | int k = 0; | |
559 | dma_addr_t tmp_p; | |
560 | void *tmp_v; | |
561 | tmp_v = pci_alloc_consistent(nic->pdev, | |
562 | PAGE_SIZE, &tmp_p); | |
563 | if (!tmp_v) { | |
0c61ed5f | 564 | DBG_PRINT(INFO_DBG, |
1da177e4 | 565 | "pci_alloc_consistent "); |
0c61ed5f | 566 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
1da177e4 LT |
567 | return -ENOMEM; |
568 | } | |
776bd20f | 569 | /* If we got a zero DMA address(can happen on |
570 | * certain platforms like PPC), reallocate. | |
571 | * Store virtual address of page we don't want, | |
572 | * to be freed later. | |
573 | */ | |
574 | if (!tmp_p) { | |
575 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 576 | DBG_PRINT(INIT_DBG, |
776bd20f | 577 | "%s: Zero DMA address for TxDL. ", dev->name); |
6aa20a22 | 578 | DBG_PRINT(INIT_DBG, |
6b4d617d | 579 | "Virtual address %p\n", tmp_v); |
776bd20f | 580 | tmp_v = pci_alloc_consistent(nic->pdev, |
581 | PAGE_SIZE, &tmp_p); | |
582 | if (!tmp_v) { | |
0c61ed5f | 583 | DBG_PRINT(INFO_DBG, |
776bd20f | 584 | "pci_alloc_consistent "); |
0c61ed5f | 585 | DBG_PRINT(INFO_DBG, "failed for TxDL\n"); |
776bd20f | 586 | return -ENOMEM; |
587 | } | |
491976b2 | 588 | mem_allocated += PAGE_SIZE; |
776bd20f | 589 | } |
1da177e4 LT |
590 | while (k < lst_per_page) { |
591 | int l = (j * lst_per_page) + k; | |
592 | if (l == config->tx_cfg[i].fifo_len) | |
20346722 K |
593 | break; |
594 | mac_control->fifos[i].list_info[l].list_virt_addr = | |
1da177e4 | 595 | tmp_v + (k * lst_size); |
20346722 | 596 | mac_control->fifos[i].list_info[l].list_phy_addr = |
1da177e4 LT |
597 | tmp_p + (k * lst_size); |
598 | k++; | |
599 | } | |
600 | } | |
601 | } | |
1da177e4 | 602 | |
4384247b | 603 | nic->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); |
fed5eccd AR |
604 | if (!nic->ufo_in_band_v) |
605 | return -ENOMEM; | |
491976b2 | 606 | mem_allocated += (size * sizeof(u64)); |
fed5eccd | 607 | |
1da177e4 LT |
608 | /* Allocation and initialization of RXDs in Rings */ |
609 | size = 0; | |
610 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
611 | if (config->rx_cfg[i].num_rxd % |
612 | (rxd_count[nic->rxd_mode] + 1)) { | |
1da177e4 LT |
613 | DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name); |
614 | DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ", | |
615 | i); | |
616 | DBG_PRINT(ERR_DBG, "RxDs per Block"); | |
617 | return FAILURE; | |
618 | } | |
619 | size += config->rx_cfg[i].num_rxd; | |
20346722 | 620 | mac_control->rings[i].block_count = |
da6971d8 AR |
621 | config->rx_cfg[i].num_rxd / |
622 | (rxd_count[nic->rxd_mode] + 1 ); | |
623 | mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd - | |
624 | mac_control->rings[i].block_count; | |
1da177e4 | 625 | } |
da6971d8 | 626 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 627 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 628 | else |
1ee6dd77 | 629 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
630 | |
631 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
632 | mac_control->rings[i].rx_curr_get_info.block_index = 0; |
633 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
634 | mac_control->rings[i].rx_curr_get_info.ring_len = | |
1da177e4 | 635 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
636 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
637 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
638 | mac_control->rings[i].rx_curr_put_info.ring_len = | |
1da177e4 | 639 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
640 | mac_control->rings[i].nic = nic; |
641 | mac_control->rings[i].ring_no = i; | |
642 | ||
da6971d8 AR |
643 | blk_cnt = config->rx_cfg[i].num_rxd / |
644 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
645 | /* Allocating all the Rx blocks */ |
646 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 647 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
648 | int l; |
649 | ||
650 | rx_blocks = &mac_control->rings[i].rx_blocks[j]; | |
651 | size = SIZE_OF_BLOCK; //size is always page size | |
1da177e4 LT |
652 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
653 | &tmp_p_addr); | |
654 | if (tmp_v_addr == NULL) { | |
655 | /* | |
20346722 K |
656 | * In case of failure, free_shared_mem() |
657 | * is called, which should free any | |
658 | * memory that was alloced till the | |
1da177e4 LT |
659 | * failure happened. |
660 | */ | |
da6971d8 | 661 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
662 | return -ENOMEM; |
663 | } | |
491976b2 | 664 | mem_allocated += size; |
1da177e4 | 665 | memset(tmp_v_addr, 0, size); |
da6971d8 AR |
666 | rx_blocks->block_virt_addr = tmp_v_addr; |
667 | rx_blocks->block_dma_addr = tmp_p_addr; | |
1ee6dd77 | 668 | rx_blocks->rxds = kmalloc(sizeof(struct rxd_info)* |
da6971d8 AR |
669 | rxd_count[nic->rxd_mode], |
670 | GFP_KERNEL); | |
372cc597 SS |
671 | if (!rx_blocks->rxds) |
672 | return -ENOMEM; | |
491976b2 SH |
673 | mem_allocated += |
674 | (sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); | |
da6971d8 AR |
675 | for (l=0; l<rxd_count[nic->rxd_mode];l++) { |
676 | rx_blocks->rxds[l].virt_addr = | |
677 | rx_blocks->block_virt_addr + | |
678 | (rxd_size[nic->rxd_mode] * l); | |
679 | rx_blocks->rxds[l].dma_addr = | |
680 | rx_blocks->block_dma_addr + | |
681 | (rxd_size[nic->rxd_mode] * l); | |
682 | } | |
1da177e4 LT |
683 | } |
684 | /* Interlinking all Rx Blocks */ | |
685 | for (j = 0; j < blk_cnt; j++) { | |
20346722 K |
686 | tmp_v_addr = |
687 | mac_control->rings[i].rx_blocks[j].block_virt_addr; | |
1da177e4 | 688 | tmp_v_addr_next = |
20346722 | 689 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 | 690 | blk_cnt].block_virt_addr; |
20346722 K |
691 | tmp_p_addr = |
692 | mac_control->rings[i].rx_blocks[j].block_dma_addr; | |
1da177e4 | 693 | tmp_p_addr_next = |
20346722 | 694 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 LT |
695 | blk_cnt].block_dma_addr; |
696 | ||
1ee6dd77 | 697 | pre_rxd_blk = (struct RxD_block *) tmp_v_addr; |
1da177e4 LT |
698 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
699 | (unsigned long) tmp_v_addr_next; | |
1da177e4 LT |
700 | pre_rxd_blk->pNext_RxD_Blk_physical = |
701 | (u64) tmp_p_addr_next; | |
702 | } | |
703 | } | |
6d517a27 | 704 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
705 | /* |
706 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
707 | * and the buffers as well. | |
708 | */ | |
709 | for (i = 0; i < config->rx_ring_num; i++) { | |
710 | blk_cnt = config->rx_cfg[i].num_rxd / | |
711 | (rxd_count[nic->rxd_mode]+ 1); | |
712 | mac_control->rings[i].ba = | |
1ee6dd77 | 713 | kmalloc((sizeof(struct buffAdd *) * blk_cnt), |
1da177e4 | 714 | GFP_KERNEL); |
da6971d8 | 715 | if (!mac_control->rings[i].ba) |
1da177e4 | 716 | return -ENOMEM; |
491976b2 | 717 | mem_allocated +=(sizeof(struct buffAdd *) * blk_cnt); |
da6971d8 AR |
718 | for (j = 0; j < blk_cnt; j++) { |
719 | int k = 0; | |
720 | mac_control->rings[i].ba[j] = | |
1ee6dd77 | 721 | kmalloc((sizeof(struct buffAdd) * |
da6971d8 AR |
722 | (rxd_count[nic->rxd_mode] + 1)), |
723 | GFP_KERNEL); | |
724 | if (!mac_control->rings[i].ba[j]) | |
1da177e4 | 725 | return -ENOMEM; |
491976b2 SH |
726 | mem_allocated += (sizeof(struct buffAdd) * \ |
727 | (rxd_count[nic->rxd_mode] + 1)); | |
da6971d8 AR |
728 | while (k != rxd_count[nic->rxd_mode]) { |
729 | ba = &mac_control->rings[i].ba[j][k]; | |
730 | ||
731 | ba->ba_0_org = (void *) kmalloc | |
732 | (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL); | |
733 | if (!ba->ba_0_org) | |
734 | return -ENOMEM; | |
491976b2 SH |
735 | mem_allocated += |
736 | (BUF0_LEN + ALIGN_SIZE); | |
da6971d8 AR |
737 | tmp = (unsigned long)ba->ba_0_org; |
738 | tmp += ALIGN_SIZE; | |
739 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
740 | ba->ba_0 = (void *) tmp; | |
741 | ||
742 | ba->ba_1_org = (void *) kmalloc | |
743 | (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL); | |
744 | if (!ba->ba_1_org) | |
745 | return -ENOMEM; | |
491976b2 SH |
746 | mem_allocated |
747 | += (BUF1_LEN + ALIGN_SIZE); | |
da6971d8 AR |
748 | tmp = (unsigned long) ba->ba_1_org; |
749 | tmp += ALIGN_SIZE; | |
750 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
751 | ba->ba_1 = (void *) tmp; | |
752 | k++; | |
753 | } | |
1da177e4 LT |
754 | } |
755 | } | |
756 | } | |
1da177e4 LT |
757 | |
758 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 759 | size = sizeof(struct stat_block); |
1da177e4 LT |
760 | mac_control->stats_mem = pci_alloc_consistent |
761 | (nic->pdev, size, &mac_control->stats_mem_phy); | |
762 | ||
763 | if (!mac_control->stats_mem) { | |
20346722 K |
764 | /* |
765 | * In case of failure, free_shared_mem() is called, which | |
766 | * should free any memory that was alloced till the | |
1da177e4 LT |
767 | * failure happened. |
768 | */ | |
769 | return -ENOMEM; | |
770 | } | |
491976b2 | 771 | mem_allocated += size; |
1da177e4 LT |
772 | mac_control->stats_mem_sz = size; |
773 | ||
774 | tmp_v_addr = mac_control->stats_mem; | |
1ee6dd77 | 775 | mac_control->stats_info = (struct stat_block *) tmp_v_addr; |
1da177e4 | 776 | memset(tmp_v_addr, 0, size); |
1da177e4 LT |
777 | DBG_PRINT(INIT_DBG, "%s:Ring Mem PHY: 0x%llx\n", dev->name, |
778 | (unsigned long long) tmp_p_addr); | |
491976b2 | 779 | mac_control->stats_info->sw_stat.mem_allocated += mem_allocated; |
1da177e4 LT |
780 | return SUCCESS; |
781 | } | |
782 | ||
20346722 K |
783 | /** |
784 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
785 | * @nic: Device private variable. |
786 | * Description: This function is to free all memory locations allocated by | |
787 | * the init_shared_mem() function and return it to the kernel. | |
788 | */ | |
789 | ||
790 | static void free_shared_mem(struct s2io_nic *nic) | |
791 | { | |
792 | int i, j, blk_cnt, size; | |
491976b2 | 793 | u32 ufo_size = 0; |
1da177e4 LT |
794 | void *tmp_v_addr; |
795 | dma_addr_t tmp_p_addr; | |
1ee6dd77 | 796 | struct mac_info *mac_control; |
1da177e4 LT |
797 | struct config_param *config; |
798 | int lst_size, lst_per_page; | |
8910b49f | 799 | struct net_device *dev; |
491976b2 | 800 | int page_num = 0; |
1da177e4 LT |
801 | |
802 | if (!nic) | |
803 | return; | |
804 | ||
8910b49f MG |
805 | dev = nic->dev; |
806 | ||
1da177e4 LT |
807 | mac_control = &nic->mac_control; |
808 | config = &nic->config; | |
809 | ||
1ee6dd77 | 810 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
811 | lst_per_page = PAGE_SIZE / lst_size; |
812 | ||
813 | for (i = 0; i < config->tx_fifo_num; i++) { | |
491976b2 SH |
814 | ufo_size += config->tx_cfg[i].fifo_len; |
815 | page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
816 | lst_per_page); | |
1da177e4 LT |
817 | for (j = 0; j < page_num; j++) { |
818 | int mem_blks = (j * lst_per_page); | |
776bd20f | 819 | if (!mac_control->fifos[i].list_info) |
6aa20a22 | 820 | return; |
776bd20f | 821 | if (!mac_control->fifos[i].list_info[mem_blks]. |
822 | list_virt_addr) | |
1da177e4 LT |
823 | break; |
824 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
20346722 K |
825 | mac_control->fifos[i]. |
826 | list_info[mem_blks]. | |
1da177e4 | 827 | list_virt_addr, |
20346722 K |
828 | mac_control->fifos[i]. |
829 | list_info[mem_blks]. | |
1da177e4 | 830 | list_phy_addr); |
491976b2 SH |
831 | nic->mac_control.stats_info->sw_stat.mem_freed |
832 | += PAGE_SIZE; | |
1da177e4 | 833 | } |
776bd20f | 834 | /* If we got a zero DMA address during allocation, |
835 | * free the page now | |
836 | */ | |
837 | if (mac_control->zerodma_virt_addr) { | |
838 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
839 | mac_control->zerodma_virt_addr, | |
840 | (dma_addr_t)0); | |
6aa20a22 | 841 | DBG_PRINT(INIT_DBG, |
6b4d617d AM |
842 | "%s: Freeing TxDL with zero DMA addr. ", |
843 | dev->name); | |
844 | DBG_PRINT(INIT_DBG, "Virtual address %p\n", | |
845 | mac_control->zerodma_virt_addr); | |
491976b2 SH |
846 | nic->mac_control.stats_info->sw_stat.mem_freed |
847 | += PAGE_SIZE; | |
776bd20f | 848 | } |
20346722 | 849 | kfree(mac_control->fifos[i].list_info); |
491976b2 SH |
850 | nic->mac_control.stats_info->sw_stat.mem_freed += |
851 | (nic->config.tx_cfg[i].fifo_len *sizeof(struct list_info_hold)); | |
1da177e4 LT |
852 | } |
853 | ||
1da177e4 | 854 | size = SIZE_OF_BLOCK; |
1da177e4 | 855 | for (i = 0; i < config->rx_ring_num; i++) { |
20346722 | 856 | blk_cnt = mac_control->rings[i].block_count; |
1da177e4 | 857 | for (j = 0; j < blk_cnt; j++) { |
20346722 K |
858 | tmp_v_addr = mac_control->rings[i].rx_blocks[j]. |
859 | block_virt_addr; | |
860 | tmp_p_addr = mac_control->rings[i].rx_blocks[j]. | |
861 | block_dma_addr; | |
1da177e4 LT |
862 | if (tmp_v_addr == NULL) |
863 | break; | |
864 | pci_free_consistent(nic->pdev, size, | |
865 | tmp_v_addr, tmp_p_addr); | |
491976b2 | 866 | nic->mac_control.stats_info->sw_stat.mem_freed += size; |
da6971d8 | 867 | kfree(mac_control->rings[i].rx_blocks[j].rxds); |
491976b2 SH |
868 | nic->mac_control.stats_info->sw_stat.mem_freed += |
869 | ( sizeof(struct rxd_info)* rxd_count[nic->rxd_mode]); | |
1da177e4 LT |
870 | } |
871 | } | |
872 | ||
6d517a27 | 873 | if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
874 | /* Freeing buffer storage addresses in 2BUFF mode. */ |
875 | for (i = 0; i < config->rx_ring_num; i++) { | |
876 | blk_cnt = config->rx_cfg[i].num_rxd / | |
877 | (rxd_count[nic->rxd_mode] + 1); | |
878 | for (j = 0; j < blk_cnt; j++) { | |
879 | int k = 0; | |
880 | if (!mac_control->rings[i].ba[j]) | |
881 | continue; | |
882 | while (k != rxd_count[nic->rxd_mode]) { | |
1ee6dd77 | 883 | struct buffAdd *ba = |
da6971d8 AR |
884 | &mac_control->rings[i].ba[j][k]; |
885 | kfree(ba->ba_0_org); | |
491976b2 SH |
886 | nic->mac_control.stats_info->sw_stat.\ |
887 | mem_freed += (BUF0_LEN + ALIGN_SIZE); | |
da6971d8 | 888 | kfree(ba->ba_1_org); |
491976b2 SH |
889 | nic->mac_control.stats_info->sw_stat.\ |
890 | mem_freed += (BUF1_LEN + ALIGN_SIZE); | |
da6971d8 AR |
891 | k++; |
892 | } | |
893 | kfree(mac_control->rings[i].ba[j]); | |
491976b2 SH |
894 | nic->mac_control.stats_info->sw_stat.mem_freed += (sizeof(struct buffAdd) * |
895 | (rxd_count[nic->rxd_mode] + 1)); | |
1da177e4 | 896 | } |
da6971d8 | 897 | kfree(mac_control->rings[i].ba); |
491976b2 SH |
898 | nic->mac_control.stats_info->sw_stat.mem_freed += |
899 | (sizeof(struct buffAdd *) * blk_cnt); | |
1da177e4 | 900 | } |
1da177e4 | 901 | } |
1da177e4 LT |
902 | |
903 | if (mac_control->stats_mem) { | |
904 | pci_free_consistent(nic->pdev, | |
905 | mac_control->stats_mem_sz, | |
906 | mac_control->stats_mem, | |
907 | mac_control->stats_mem_phy); | |
491976b2 SH |
908 | nic->mac_control.stats_info->sw_stat.mem_freed += |
909 | mac_control->stats_mem_sz; | |
1da177e4 | 910 | } |
491976b2 | 911 | if (nic->ufo_in_band_v) { |
fed5eccd | 912 | kfree(nic->ufo_in_band_v); |
491976b2 SH |
913 | nic->mac_control.stats_info->sw_stat.mem_freed |
914 | += (ufo_size * sizeof(u64)); | |
915 | } | |
1da177e4 LT |
916 | } |
917 | ||
541ae68f K |
918 | /** |
919 | * s2io_verify_pci_mode - | |
920 | */ | |
921 | ||
1ee6dd77 | 922 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 923 | { |
1ee6dd77 | 924 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
925 | register u64 val64 = 0; |
926 | int mode; | |
927 | ||
928 | val64 = readq(&bar0->pci_mode); | |
929 | mode = (u8)GET_PCI_MODE(val64); | |
930 | ||
931 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
932 | return -1; /* Unknown PCI mode */ | |
933 | return mode; | |
934 | } | |
935 | ||
c92ca04b AR |
936 | #define NEC_VENID 0x1033 |
937 | #define NEC_DEVID 0x0125 | |
938 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
939 | { | |
940 | struct pci_dev *tdev = NULL; | |
26d36b64 AC |
941 | while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { |
942 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { | |
c92ca04b | 943 | if (tdev->bus == s2io_pdev->bus->parent) |
26d36b64 | 944 | pci_dev_put(tdev); |
c92ca04b AR |
945 | return 1; |
946 | } | |
947 | } | |
948 | return 0; | |
949 | } | |
541ae68f | 950 | |
7b32a312 | 951 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f K |
952 | /** |
953 | * s2io_print_pci_mode - | |
954 | */ | |
1ee6dd77 | 955 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 956 | { |
1ee6dd77 | 957 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
958 | register u64 val64 = 0; |
959 | int mode; | |
960 | struct config_param *config = &nic->config; | |
961 | ||
962 | val64 = readq(&bar0->pci_mode); | |
963 | mode = (u8)GET_PCI_MODE(val64); | |
964 | ||
965 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
966 | return -1; /* Unknown PCI mode */ | |
967 | ||
c92ca04b AR |
968 | config->bus_speed = bus_speed[mode]; |
969 | ||
970 | if (s2io_on_nec_bridge(nic->pdev)) { | |
971 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
972 | nic->dev->name); | |
973 | return mode; | |
974 | } | |
975 | ||
541ae68f K |
976 | if (val64 & PCI_MODE_32_BITS) { |
977 | DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name); | |
978 | } else { | |
979 | DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name); | |
980 | } | |
981 | ||
982 | switch(mode) { | |
983 | case PCI_MODE_PCI_33: | |
984 | DBG_PRINT(ERR_DBG, "33MHz PCI bus\n"); | |
541ae68f K |
985 | break; |
986 | case PCI_MODE_PCI_66: | |
987 | DBG_PRINT(ERR_DBG, "66MHz PCI bus\n"); | |
541ae68f K |
988 | break; |
989 | case PCI_MODE_PCIX_M1_66: | |
990 | DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n"); | |
541ae68f K |
991 | break; |
992 | case PCI_MODE_PCIX_M1_100: | |
993 | DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n"); | |
541ae68f K |
994 | break; |
995 | case PCI_MODE_PCIX_M1_133: | |
996 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n"); | |
541ae68f K |
997 | break; |
998 | case PCI_MODE_PCIX_M2_66: | |
999 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n"); | |
541ae68f K |
1000 | break; |
1001 | case PCI_MODE_PCIX_M2_100: | |
1002 | DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n"); | |
541ae68f K |
1003 | break; |
1004 | case PCI_MODE_PCIX_M2_133: | |
1005 | DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n"); | |
541ae68f K |
1006 | break; |
1007 | default: | |
1008 | return -1; /* Unsupported bus speed */ | |
1009 | } | |
1010 | ||
1011 | return mode; | |
1012 | } | |
1013 | ||
20346722 K |
1014 | /** |
1015 | * init_nic - Initialization of hardware | |
1da177e4 | 1016 | * @nic: device peivate variable |
20346722 K |
1017 | * Description: The function sequentially configures every block |
1018 | * of the H/W from their reset values. | |
1019 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
1020 | * '-1' on failure (endian settings incorrect). |
1021 | */ | |
1022 | ||
1023 | static int init_nic(struct s2io_nic *nic) | |
1024 | { | |
1ee6dd77 | 1025 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1026 | struct net_device *dev = nic->dev; |
1027 | register u64 val64 = 0; | |
1028 | void __iomem *add; | |
1029 | u32 time; | |
1030 | int i, j; | |
1ee6dd77 | 1031 | struct mac_info *mac_control; |
1da177e4 | 1032 | struct config_param *config; |
c92ca04b | 1033 | int dtx_cnt = 0; |
1da177e4 | 1034 | unsigned long long mem_share; |
20346722 | 1035 | int mem_size; |
1da177e4 LT |
1036 | |
1037 | mac_control = &nic->mac_control; | |
1038 | config = &nic->config; | |
1039 | ||
5e25b9dd | 1040 | /* to set the swapper controle on the card */ |
20346722 | 1041 | if(s2io_set_swapper(nic)) { |
1da177e4 LT |
1042 | DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); |
1043 | return -1; | |
1044 | } | |
1045 | ||
541ae68f K |
1046 | /* |
1047 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
1048 | */ | |
1049 | if (nic->device_type & XFRAME_II_DEVICE) { | |
1050 | val64 = 0xA500000000ULL; | |
1051 | writeq(val64, &bar0->sw_reset); | |
1052 | msleep(500); | |
1053 | val64 = readq(&bar0->sw_reset); | |
1054 | } | |
1055 | ||
1da177e4 LT |
1056 | /* Remove XGXS from reset state */ |
1057 | val64 = 0; | |
1058 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 1059 | msleep(500); |
20346722 | 1060 | val64 = readq(&bar0->sw_reset); |
1da177e4 LT |
1061 | |
1062 | /* Enable Receiving broadcasts */ | |
1063 | add = &bar0->mac_cfg; | |
1064 | val64 = readq(&bar0->mac_cfg); | |
1065 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
1066 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1067 | writel((u32) val64, add); | |
1068 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1069 | writel((u32) (val64 >> 32), (add + 4)); | |
1070 | ||
1071 | /* Read registers in all blocks */ | |
1072 | val64 = readq(&bar0->mac_int_mask); | |
1073 | val64 = readq(&bar0->mc_int_mask); | |
1074 | val64 = readq(&bar0->xgxs_int_mask); | |
1075 | ||
1076 | /* Set MTU */ | |
1077 | val64 = dev->mtu; | |
1078 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
1079 | ||
541ae68f K |
1080 | if (nic->device_type & XFRAME_II_DEVICE) { |
1081 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 1082 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 1083 | &bar0->dtx_control, UF); |
541ae68f K |
1084 | if (dtx_cnt & 0x1) |
1085 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1086 | dtx_cnt++; |
1087 | } | |
541ae68f | 1088 | } else { |
c92ca04b AR |
1089 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1090 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1091 | &bar0->dtx_control, UF); | |
1092 | val64 = readq(&bar0->dtx_control); | |
1093 | dtx_cnt++; | |
1da177e4 LT |
1094 | } |
1095 | } | |
1096 | ||
1097 | /* Tx DMA Initialization */ | |
1098 | val64 = 0; | |
1099 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1100 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1101 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1102 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1103 | ||
1104 | ||
1105 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { | |
1106 | val64 |= | |
1107 | vBIT(config->tx_cfg[i].fifo_len - 1, ((i * 32) + 19), | |
1108 | 13) | vBIT(config->tx_cfg[i].fifo_priority, | |
1109 | ((i * 32) + 5), 3); | |
1110 | ||
1111 | if (i == (config->tx_fifo_num - 1)) { | |
1112 | if (i % 2 == 0) | |
1113 | i++; | |
1114 | } | |
1115 | ||
1116 | switch (i) { | |
1117 | case 1: | |
1118 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1119 | val64 = 0; | |
1120 | break; | |
1121 | case 3: | |
1122 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1123 | val64 = 0; | |
1124 | break; | |
1125 | case 5: | |
1126 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1127 | val64 = 0; | |
1128 | break; | |
1129 | case 7: | |
1130 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1131 | break; | |
1132 | } | |
1133 | } | |
1134 | ||
5e25b9dd K |
1135 | /* |
1136 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1137 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1138 | */ | |
541ae68f | 1139 | if ((nic->device_type == XFRAME_I_DEVICE) && |
44c10138 | 1140 | (nic->pdev->revision < 4)) |
5e25b9dd K |
1141 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1142 | ||
1da177e4 LT |
1143 | val64 = readq(&bar0->tx_fifo_partition_0); |
1144 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
1145 | &bar0->tx_fifo_partition_0, (unsigned long long) val64); | |
1146 | ||
20346722 K |
1147 | /* |
1148 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1149 | * integrity checking. |
1150 | */ | |
1151 | val64 = readq(&bar0->tx_pa_cfg); | |
1152 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1153 | TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR; | |
1154 | writeq(val64, &bar0->tx_pa_cfg); | |
1155 | ||
1156 | /* Rx DMA intialization. */ | |
1157 | val64 = 0; | |
1158 | for (i = 0; i < config->rx_ring_num; i++) { | |
1159 | val64 |= | |
1160 | vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)), | |
1161 | 3); | |
1162 | } | |
1163 | writeq(val64, &bar0->rx_queue_priority); | |
1164 | ||
20346722 K |
1165 | /* |
1166 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1167 | * configured Rings. |
1168 | */ | |
1169 | val64 = 0; | |
541ae68f K |
1170 | if (nic->device_type & XFRAME_II_DEVICE) |
1171 | mem_size = 32; | |
1172 | else | |
1173 | mem_size = 64; | |
1174 | ||
1da177e4 LT |
1175 | for (i = 0; i < config->rx_ring_num; i++) { |
1176 | switch (i) { | |
1177 | case 0: | |
20346722 K |
1178 | mem_share = (mem_size / config->rx_ring_num + |
1179 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1180 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1181 | continue; | |
1182 | case 1: | |
20346722 | 1183 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1184 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1185 | continue; | |
1186 | case 2: | |
20346722 | 1187 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1188 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1189 | continue; | |
1190 | case 3: | |
20346722 | 1191 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1192 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1193 | continue; | |
1194 | case 4: | |
20346722 | 1195 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1196 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1197 | continue; | |
1198 | case 5: | |
20346722 | 1199 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1200 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1201 | continue; | |
1202 | case 6: | |
20346722 | 1203 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1204 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1205 | continue; | |
1206 | case 7: | |
20346722 | 1207 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1208 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1209 | continue; | |
1210 | } | |
1211 | } | |
1212 | writeq(val64, &bar0->rx_queue_cfg); | |
1213 | ||
20346722 | 1214 | /* |
5e25b9dd K |
1215 | * Filling Tx round robin registers |
1216 | * as per the number of FIFOs | |
1da177e4 | 1217 | */ |
5e25b9dd K |
1218 | switch (config->tx_fifo_num) { |
1219 | case 1: | |
1220 | val64 = 0x0000000000000000ULL; | |
1221 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1222 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1223 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1224 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1225 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1226 | break; | |
1227 | case 2: | |
1228 | val64 = 0x0000010000010000ULL; | |
1229 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1230 | val64 = 0x0100000100000100ULL; | |
1231 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1232 | val64 = 0x0001000001000001ULL; | |
1233 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1234 | val64 = 0x0000010000010000ULL; | |
1235 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1236 | val64 = 0x0100000000000000ULL; | |
1237 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1238 | break; | |
1239 | case 3: | |
1240 | val64 = 0x0001000102000001ULL; | |
1241 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1242 | val64 = 0x0001020000010001ULL; | |
1243 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1244 | val64 = 0x0200000100010200ULL; | |
1245 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1246 | val64 = 0x0001000102000001ULL; | |
1247 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1248 | val64 = 0x0001020000000000ULL; | |
1249 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1250 | break; | |
1251 | case 4: | |
1252 | val64 = 0x0001020300010200ULL; | |
1253 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1254 | val64 = 0x0100000102030001ULL; | |
1255 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1256 | val64 = 0x0200010000010203ULL; | |
1257 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1258 | val64 = 0x0001020001000001ULL; | |
1259 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1260 | val64 = 0x0203000100000000ULL; | |
1261 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1262 | break; | |
1263 | case 5: | |
1264 | val64 = 0x0001000203000102ULL; | |
1265 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1266 | val64 = 0x0001020001030004ULL; | |
1267 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1268 | val64 = 0x0001000203000102ULL; | |
1269 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1270 | val64 = 0x0001020001030004ULL; | |
1271 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1272 | val64 = 0x0001000000000000ULL; | |
1273 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1274 | break; | |
1275 | case 6: | |
1276 | val64 = 0x0001020304000102ULL; | |
1277 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1278 | val64 = 0x0304050001020001ULL; | |
1279 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1280 | val64 = 0x0203000100000102ULL; | |
1281 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1282 | val64 = 0x0304000102030405ULL; | |
1283 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1284 | val64 = 0x0001000200000000ULL; | |
1285 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1286 | break; | |
1287 | case 7: | |
1288 | val64 = 0x0001020001020300ULL; | |
1289 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1290 | val64 = 0x0102030400010203ULL; | |
1291 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1292 | val64 = 0x0405060001020001ULL; | |
1293 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1294 | val64 = 0x0304050000010200ULL; | |
1295 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1296 | val64 = 0x0102030000000000ULL; | |
1297 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1298 | break; | |
1299 | case 8: | |
1300 | val64 = 0x0001020300040105ULL; | |
1301 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1302 | val64 = 0x0200030106000204ULL; | |
1303 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1304 | val64 = 0x0103000502010007ULL; | |
1305 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1306 | val64 = 0x0304010002060500ULL; | |
1307 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1308 | val64 = 0x0103020400000000ULL; | |
1309 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1310 | break; | |
1311 | } | |
1312 | ||
b41477f3 | 1313 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1314 | val64 = readq(&bar0->tx_fifo_partition_0); |
1315 | val64 |= (TX_FIFO_PARTITION_EN); | |
1316 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1317 | ||
5e25b9dd K |
1318 | /* Filling the Rx round robin registers as per the |
1319 | * number of Rings and steering based on QoS. | |
1320 | */ | |
1321 | switch (config->rx_ring_num) { | |
1322 | case 1: | |
1323 | val64 = 0x8080808080808080ULL; | |
1324 | writeq(val64, &bar0->rts_qos_steering); | |
1325 | break; | |
1326 | case 2: | |
1327 | val64 = 0x0000010000010000ULL; | |
1328 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1329 | val64 = 0x0100000100000100ULL; | |
1330 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1331 | val64 = 0x0001000001000001ULL; | |
1332 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1333 | val64 = 0x0000010000010000ULL; | |
1334 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1335 | val64 = 0x0100000000000000ULL; | |
1336 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1337 | ||
1338 | val64 = 0x8080808040404040ULL; | |
1339 | writeq(val64, &bar0->rts_qos_steering); | |
1340 | break; | |
1341 | case 3: | |
1342 | val64 = 0x0001000102000001ULL; | |
1343 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1344 | val64 = 0x0001020000010001ULL; | |
1345 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1346 | val64 = 0x0200000100010200ULL; | |
1347 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1348 | val64 = 0x0001000102000001ULL; | |
1349 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1350 | val64 = 0x0001020000000000ULL; | |
1351 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1352 | ||
1353 | val64 = 0x8080804040402020ULL; | |
1354 | writeq(val64, &bar0->rts_qos_steering); | |
1355 | break; | |
1356 | case 4: | |
1357 | val64 = 0x0001020300010200ULL; | |
1358 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1359 | val64 = 0x0100000102030001ULL; | |
1360 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1361 | val64 = 0x0200010000010203ULL; | |
1362 | writeq(val64, &bar0->rx_w_round_robin_2); | |
6aa20a22 | 1363 | val64 = 0x0001020001000001ULL; |
5e25b9dd K |
1364 | writeq(val64, &bar0->rx_w_round_robin_3); |
1365 | val64 = 0x0203000100000000ULL; | |
1366 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1367 | ||
1368 | val64 = 0x8080404020201010ULL; | |
1369 | writeq(val64, &bar0->rts_qos_steering); | |
1370 | break; | |
1371 | case 5: | |
1372 | val64 = 0x0001000203000102ULL; | |
1373 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1374 | val64 = 0x0001020001030004ULL; | |
1375 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1376 | val64 = 0x0001000203000102ULL; | |
1377 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1378 | val64 = 0x0001020001030004ULL; | |
1379 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1380 | val64 = 0x0001000000000000ULL; | |
1381 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1382 | ||
1383 | val64 = 0x8080404020201008ULL; | |
1384 | writeq(val64, &bar0->rts_qos_steering); | |
1385 | break; | |
1386 | case 6: | |
1387 | val64 = 0x0001020304000102ULL; | |
1388 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1389 | val64 = 0x0304050001020001ULL; | |
1390 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1391 | val64 = 0x0203000100000102ULL; | |
1392 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1393 | val64 = 0x0304000102030405ULL; | |
1394 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1395 | val64 = 0x0001000200000000ULL; | |
1396 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1397 | ||
1398 | val64 = 0x8080404020100804ULL; | |
1399 | writeq(val64, &bar0->rts_qos_steering); | |
1400 | break; | |
1401 | case 7: | |
1402 | val64 = 0x0001020001020300ULL; | |
1403 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1404 | val64 = 0x0102030400010203ULL; | |
1405 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1406 | val64 = 0x0405060001020001ULL; | |
1407 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1408 | val64 = 0x0304050000010200ULL; | |
1409 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1410 | val64 = 0x0102030000000000ULL; | |
1411 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1412 | ||
1413 | val64 = 0x8080402010080402ULL; | |
1414 | writeq(val64, &bar0->rts_qos_steering); | |
1415 | break; | |
1416 | case 8: | |
1417 | val64 = 0x0001020300040105ULL; | |
1418 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1419 | val64 = 0x0200030106000204ULL; | |
1420 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1421 | val64 = 0x0103000502010007ULL; | |
1422 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1423 | val64 = 0x0304010002060500ULL; | |
1424 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1425 | val64 = 0x0103020400000000ULL; | |
1426 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1427 | ||
1428 | val64 = 0x8040201008040201ULL; | |
1429 | writeq(val64, &bar0->rts_qos_steering); | |
1430 | break; | |
1431 | } | |
1da177e4 LT |
1432 | |
1433 | /* UDP Fix */ | |
1434 | val64 = 0; | |
20346722 | 1435 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1436 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1437 | ||
5e25b9dd K |
1438 | /* Set the default rts frame length for the rings configured */ |
1439 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1440 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1441 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1442 | ||
1443 | /* Set the frame length for the configured rings | |
1444 | * desired by the user | |
1445 | */ | |
1446 | for (i = 0; i < config->rx_ring_num; i++) { | |
1447 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1448 | * specified frame length steering. | |
1449 | * If the user provides the frame length then program | |
1450 | * the rts_frm_len register for those values or else | |
1451 | * leave it as it is. | |
1452 | */ | |
1453 | if (rts_frm_len[i] != 0) { | |
1454 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
1455 | &bar0->rts_frm_len_n[i]); | |
1456 | } | |
1457 | } | |
926930b2 | 1458 | |
9fc93a41 SS |
1459 | /* Disable differentiated services steering logic */ |
1460 | for (i = 0; i < 64; i++) { | |
1461 | if (rts_ds_steer(nic, i, 0) == FAILURE) { | |
1462 | DBG_PRINT(ERR_DBG, "%s: failed rts ds steering", | |
1463 | dev->name); | |
1464 | DBG_PRINT(ERR_DBG, "set on codepoint %d\n", i); | |
1465 | return FAILURE; | |
1466 | } | |
1467 | } | |
1468 | ||
20346722 | 1469 | /* Program statistics memory */ |
1da177e4 | 1470 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1471 | |
541ae68f K |
1472 | if (nic->device_type == XFRAME_II_DEVICE) { |
1473 | val64 = STAT_BC(0x320); | |
1474 | writeq(val64, &bar0->stat_byte_cnt); | |
1475 | } | |
1476 | ||
20346722 | 1477 | /* |
1da177e4 LT |
1478 | * Initializing the sampling rate for the device to calculate the |
1479 | * bandwidth utilization. | |
1480 | */ | |
1481 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
1482 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); | |
1483 | writeq(val64, &bar0->mac_link_util); | |
1484 | ||
1485 | ||
20346722 K |
1486 | /* |
1487 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1488 | * Scheme. |
1489 | */ | |
20346722 K |
1490 | /* |
1491 | * TTI Initialization. Default Tx timer gets us about | |
1da177e4 LT |
1492 | * 250 interrupts per sec. Continuous interrupts are enabled |
1493 | * by default. | |
1494 | */ | |
541ae68f K |
1495 | if (nic->device_type == XFRAME_II_DEVICE) { |
1496 | int count = (nic->config.bus_speed * 125)/2; | |
1497 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1498 | } else { | |
1499 | ||
1500 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1501 | } | |
1502 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
1da177e4 | 1503 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
5e25b9dd | 1504 | TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN; |
541ae68f K |
1505 | if (use_continuous_tx_intrs) |
1506 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
1da177e4 LT |
1507 | writeq(val64, &bar0->tti_data1_mem); |
1508 | ||
1509 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1510 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
19a60522 | 1511 | TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80); |
1da177e4 LT |
1512 | writeq(val64, &bar0->tti_data2_mem); |
1513 | ||
1514 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1515 | writeq(val64, &bar0->tti_command_mem); | |
1516 | ||
20346722 | 1517 | /* |
1da177e4 LT |
1518 | * Once the operation completes, the Strobe bit of the command |
1519 | * register will be reset. We poll for this particular condition | |
1520 | * We wait for a maximum of 500ms for the operation to complete, | |
1521 | * if it's not complete by then we return error. | |
1522 | */ | |
1523 | time = 0; | |
1524 | while (TRUE) { | |
1525 | val64 = readq(&bar0->tti_command_mem); | |
1526 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1527 | break; | |
1528 | } | |
1529 | if (time > 10) { | |
1530 | DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", | |
1531 | dev->name); | |
1532 | return -1; | |
1533 | } | |
1534 | msleep(50); | |
1535 | time++; | |
1536 | } | |
1537 | ||
b6e3f982 K |
1538 | if (nic->config.bimodal) { |
1539 | int k = 0; | |
1540 | for (k = 0; k < config->rx_ring_num; k++) { | |
1541 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1542 | val64 |= TTI_CMD_MEM_OFFSET(0x38+k); | |
1543 | writeq(val64, &bar0->tti_command_mem); | |
541ae68f | 1544 | |
541ae68f | 1545 | /* |
b6e3f982 K |
1546 | * Once the operation completes, the Strobe bit of the command |
1547 | * register will be reset. We poll for this particular condition | |
1548 | * We wait for a maximum of 500ms for the operation to complete, | |
1549 | * if it's not complete by then we return error. | |
1550 | */ | |
1551 | time = 0; | |
1552 | while (TRUE) { | |
1553 | val64 = readq(&bar0->tti_command_mem); | |
1554 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1555 | break; | |
1556 | } | |
1557 | if (time > 10) { | |
1558 | DBG_PRINT(ERR_DBG, | |
1559 | "%s: TTI init Failed\n", | |
1560 | dev->name); | |
1561 | return -1; | |
1562 | } | |
1563 | time++; | |
1564 | msleep(50); | |
1565 | } | |
1566 | } | |
541ae68f | 1567 | } else { |
1da177e4 | 1568 | |
b6e3f982 K |
1569 | /* RTI Initialization */ |
1570 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1571 | /* | |
1572 | * Programmed to generate Apprx 500 Intrs per | |
1573 | * second | |
1574 | */ | |
1575 | int count = (nic->config.bus_speed * 125)/4; | |
1576 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1577 | } else { | |
1578 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1579 | } | |
1580 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
1581 | RTI_DATA1_MEM_RX_URNG_B(0x10) | | |
1582 | RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
1da177e4 | 1583 | |
b6e3f982 | 1584 | writeq(val64, &bar0->rti_data1_mem); |
1da177e4 | 1585 | |
b6e3f982 | 1586 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | |
cc6e7c44 RA |
1587 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; |
1588 | if (nic->intr_type == MSI_X) | |
1589 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \ | |
1590 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
1591 | else | |
1592 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \ | |
1593 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
b6e3f982 | 1594 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1595 | |
b6e3f982 K |
1596 | for (i = 0; i < config->rx_ring_num; i++) { |
1597 | val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD | |
1598 | | RTI_CMD_MEM_OFFSET(i); | |
1599 | writeq(val64, &bar0->rti_command_mem); | |
1600 | ||
1601 | /* | |
1602 | * Once the operation completes, the Strobe bit of the | |
1603 | * command register will be reset. We poll for this | |
1604 | * particular condition. We wait for a maximum of 500ms | |
1605 | * for the operation to complete, if it's not complete | |
1606 | * by then we return error. | |
1607 | */ | |
1608 | time = 0; | |
1609 | while (TRUE) { | |
1610 | val64 = readq(&bar0->rti_command_mem); | |
1611 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1612 | break; | |
1613 | } | |
1614 | if (time > 10) { | |
1615 | DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", | |
1616 | dev->name); | |
1617 | return -1; | |
1618 | } | |
1619 | time++; | |
1620 | msleep(50); | |
1621 | } | |
1da177e4 | 1622 | } |
1da177e4 LT |
1623 | } |
1624 | ||
20346722 K |
1625 | /* |
1626 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1627 | * the 8 Queues on Rx side. |
1628 | */ | |
1629 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1630 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1631 | ||
1632 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1633 | add = &bar0->mac_cfg; |
1da177e4 LT |
1634 | val64 = readq(&bar0->mac_cfg); |
1635 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1636 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1637 | writel((u32) (val64), add); | |
1638 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1639 | writel((u32) (val64 >> 32), (add + 4)); | |
1640 | val64 = readq(&bar0->mac_cfg); | |
1641 | ||
7d3d0439 RA |
1642 | /* Enable FCS stripping by adapter */ |
1643 | add = &bar0->mac_cfg; | |
1644 | val64 = readq(&bar0->mac_cfg); | |
1645 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1646 | if (nic->device_type == XFRAME_II_DEVICE) | |
1647 | writeq(val64, &bar0->mac_cfg); | |
1648 | else { | |
1649 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1650 | writel((u32) (val64), add); | |
1651 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1652 | writel((u32) (val64 >> 32), (add + 4)); | |
1653 | } | |
1654 | ||
20346722 K |
1655 | /* |
1656 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1657 | * generated by xena. |
1658 | */ | |
1659 | val64 = readq(&bar0->rmac_pause_cfg); | |
1660 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1661 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1662 | writeq(val64, &bar0->rmac_pause_cfg); | |
1663 | ||
20346722 | 1664 | /* |
1da177e4 LT |
1665 | * Set the Threshold Limit for Generating the pause frame |
1666 | * If the amount of data in any Queue exceeds ratio of | |
1667 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1668 | * pause frame is generated | |
1669 | */ | |
1670 | val64 = 0; | |
1671 | for (i = 0; i < 4; i++) { | |
1672 | val64 |= | |
1673 | (((u64) 0xFF00 | nic->mac_control. | |
1674 | mc_pause_threshold_q0q3) | |
1675 | << (i * 2 * 8)); | |
1676 | } | |
1677 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1678 | ||
1679 | val64 = 0; | |
1680 | for (i = 0; i < 4; i++) { | |
1681 | val64 |= | |
1682 | (((u64) 0xFF00 | nic->mac_control. | |
1683 | mc_pause_threshold_q4q7) | |
1684 | << (i * 2 * 8)); | |
1685 | } | |
1686 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1687 | ||
20346722 K |
1688 | /* |
1689 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1690 | * exceeded the limit pointed by shared_splits |
1691 | */ | |
1692 | val64 = readq(&bar0->pic_control); | |
1693 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1694 | writeq(val64, &bar0->pic_control); | |
1695 | ||
863c11a9 AR |
1696 | if (nic->config.bus_speed == 266) { |
1697 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1698 | writeq(0x0, &bar0->read_retry_delay); | |
1699 | writeq(0x0, &bar0->write_retry_delay); | |
1700 | } | |
1701 | ||
541ae68f K |
1702 | /* |
1703 | * Programming the Herc to split every write transaction | |
1704 | * that does not start on an ADB to reduce disconnects. | |
1705 | */ | |
1706 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1707 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1708 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1709 | writeq(val64, &bar0->misc_control); |
1710 | val64 = readq(&bar0->pic_control2); | |
1711 | val64 &= ~(BIT(13)|BIT(14)|BIT(15)); | |
1712 | writeq(val64, &bar0->pic_control2); | |
541ae68f | 1713 | } |
c92ca04b AR |
1714 | if (strstr(nic->product_name, "CX4")) { |
1715 | val64 = TMAC_AVG_IPG(0x17); | |
1716 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d K |
1717 | } |
1718 | ||
1da177e4 LT |
1719 | return SUCCESS; |
1720 | } | |
a371a07d K |
1721 | #define LINK_UP_DOWN_INTERRUPT 1 |
1722 | #define MAC_RMAC_ERR_TIMER 2 | |
1723 | ||
1ee6dd77 | 1724 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d | 1725 | { |
cc6e7c44 RA |
1726 | if (nic->intr_type != INTA) |
1727 | return MAC_RMAC_ERR_TIMER; | |
a371a07d K |
1728 | if (nic->device_type == XFRAME_II_DEVICE) |
1729 | return LINK_UP_DOWN_INTERRUPT; | |
1730 | else | |
1731 | return MAC_RMAC_ERR_TIMER; | |
1732 | } | |
1da177e4 | 1733 | |
20346722 K |
1734 | /** |
1735 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1736 | * @nic: device private variable, |
1737 | * @mask: A mask indicating which Intr block must be modified and, | |
1738 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1739 | * Description: This function will either disable or enable the interrupts | |
20346722 K |
1740 | * depending on the flag argument. The mask argument can be used to |
1741 | * enable/disable any Intr block. | |
1da177e4 LT |
1742 | * Return Value: NONE. |
1743 | */ | |
1744 | ||
1745 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1746 | { | |
1ee6dd77 | 1747 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1748 | register u64 val64 = 0, temp64 = 0; |
1749 | ||
1750 | /* Top level interrupt classification */ | |
1751 | /* PIC Interrupts */ | |
1752 | if ((mask & (TX_PIC_INTR | RX_PIC_INTR))) { | |
1753 | /* Enable PIC Intrs in the general intr mask register */ | |
a113ae06 | 1754 | val64 = TXPIC_INT_M; |
1da177e4 LT |
1755 | if (flag == ENABLE_INTRS) { |
1756 | temp64 = readq(&bar0->general_int_mask); | |
1757 | temp64 &= ~((u64) val64); | |
1758 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1759 | /* |
a371a07d | 1760 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 1761 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 K |
1762 | * interrupts for now. |
1763 | * TODO | |
1da177e4 | 1764 | */ |
a371a07d K |
1765 | if (s2io_link_fault_indication(nic) == |
1766 | LINK_UP_DOWN_INTERRUPT ) { | |
1767 | temp64 = readq(&bar0->pic_int_mask); | |
1768 | temp64 &= ~((u64) PIC_INT_GPIO); | |
1769 | writeq(temp64, &bar0->pic_int_mask); | |
1770 | temp64 = readq(&bar0->gpio_int_mask); | |
1771 | temp64 &= ~((u64) GPIO_INT_MASK_LINK_UP); | |
1772 | writeq(temp64, &bar0->gpio_int_mask); | |
1773 | } else { | |
1774 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1775 | } | |
20346722 | 1776 | /* |
1da177e4 LT |
1777 | * No MSI Support is available presently, so TTI and |
1778 | * RTI interrupts are also disabled. | |
1779 | */ | |
1780 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1781 | /* |
1782 | * Disable PIC Intrs in the general | |
1783 | * intr mask register | |
1da177e4 LT |
1784 | */ |
1785 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1786 | temp64 = readq(&bar0->general_int_mask); | |
1787 | val64 |= temp64; | |
1788 | writeq(val64, &bar0->general_int_mask); | |
1789 | } | |
1790 | } | |
1791 | ||
1da177e4 LT |
1792 | /* MAC Interrupts */ |
1793 | /* Enabling/Disabling MAC interrupts */ | |
1794 | if (mask & (TX_MAC_INTR | RX_MAC_INTR)) { | |
1795 | val64 = TXMAC_INT_M | RXMAC_INT_M; | |
1796 | if (flag == ENABLE_INTRS) { | |
1797 | temp64 = readq(&bar0->general_int_mask); | |
1798 | temp64 &= ~((u64) val64); | |
1799 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1800 | /* |
1801 | * All MAC block error interrupts are disabled for now | |
1da177e4 LT |
1802 | * TODO |
1803 | */ | |
1da177e4 | 1804 | } else if (flag == DISABLE_INTRS) { |
20346722 K |
1805 | /* |
1806 | * Disable MAC Intrs in the general intr mask register | |
1da177e4 LT |
1807 | */ |
1808 | writeq(DISABLE_ALL_INTRS, &bar0->mac_int_mask); | |
1809 | writeq(DISABLE_ALL_INTRS, | |
1810 | &bar0->mac_rmac_err_mask); | |
1811 | ||
1812 | temp64 = readq(&bar0->general_int_mask); | |
1813 | val64 |= temp64; | |
1814 | writeq(val64, &bar0->general_int_mask); | |
1815 | } | |
1816 | } | |
1817 | ||
1da177e4 LT |
1818 | /* Tx traffic interrupts */ |
1819 | if (mask & TX_TRAFFIC_INTR) { | |
1820 | val64 = TXTRAFFIC_INT_M; | |
1821 | if (flag == ENABLE_INTRS) { | |
1822 | temp64 = readq(&bar0->general_int_mask); | |
1823 | temp64 &= ~((u64) val64); | |
1824 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1825 | /* |
1da177e4 | 1826 | * Enable all the Tx side interrupts |
20346722 | 1827 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
1828 | */ |
1829 | writeq(0x0, &bar0->tx_traffic_mask); | |
1830 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1831 | /* |
1832 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1833 | * register. |
1834 | */ | |
1835 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1836 | temp64 = readq(&bar0->general_int_mask); | |
1837 | val64 |= temp64; | |
1838 | writeq(val64, &bar0->general_int_mask); | |
1839 | } | |
1840 | } | |
1841 | ||
1842 | /* Rx traffic interrupts */ | |
1843 | if (mask & RX_TRAFFIC_INTR) { | |
1844 | val64 = RXTRAFFIC_INT_M; | |
1845 | if (flag == ENABLE_INTRS) { | |
1846 | temp64 = readq(&bar0->general_int_mask); | |
1847 | temp64 &= ~((u64) val64); | |
1848 | writeq(temp64, &bar0->general_int_mask); | |
1849 | /* writing 0 Enables all 8 RX interrupt levels */ | |
1850 | writeq(0x0, &bar0->rx_traffic_mask); | |
1851 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1852 | /* |
1853 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1854 | * register. |
1855 | */ | |
1856 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1857 | temp64 = readq(&bar0->general_int_mask); | |
1858 | val64 |= temp64; | |
1859 | writeq(val64, &bar0->general_int_mask); | |
1860 | } | |
1861 | } | |
1862 | } | |
1863 | ||
19a60522 SS |
1864 | /** |
1865 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
1866 | * Return: 1 If PCC is quiescence | |
1867 | * 0 If PCC is not quiescence | |
1868 | */ | |
1ee6dd77 | 1869 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 1870 | { |
19a60522 | 1871 | int ret = 0, herc; |
1ee6dd77 | 1872 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1873 | u64 val64 = readq(&bar0->adapter_status); |
1874 | ||
1875 | herc = (sp->device_type == XFRAME_II_DEVICE); | |
20346722 K |
1876 | |
1877 | if (flag == FALSE) { | |
44c10138 | 1878 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
19a60522 | 1879 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 1880 | ret = 1; |
19a60522 SS |
1881 | } else { |
1882 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 1883 | ret = 1; |
20346722 K |
1884 | } |
1885 | } else { | |
44c10138 | 1886 | if ((!herc && (sp->pdev->revision >= 4)) || herc) { |
5e25b9dd | 1887 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 1888 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 1889 | ret = 1; |
5e25b9dd K |
1890 | } else { |
1891 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 1892 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 1893 | ret = 1; |
20346722 K |
1894 | } |
1895 | } | |
1896 | ||
1897 | return ret; | |
1898 | } | |
1899 | /** | |
1900 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 1901 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 1902 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
1903 | * differs and the calling function passes the input argument flag to |
1904 | * indicate this. | |
20346722 | 1905 | * Return: 1 If xena is quiescence |
1da177e4 LT |
1906 | * 0 If Xena is not quiescence |
1907 | */ | |
1908 | ||
1ee6dd77 | 1909 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 1910 | { |
19a60522 | 1911 | int mode; |
1ee6dd77 | 1912 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1913 | u64 val64 = readq(&bar0->adapter_status); |
1914 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 1915 | |
19a60522 SS |
1916 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
1917 | DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!"); | |
1918 | return 0; | |
1919 | } | |
1920 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
1921 | DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!"); | |
1922 | return 0; | |
1923 | } | |
1924 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
1925 | DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!"); | |
1926 | return 0; | |
1927 | } | |
1928 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
1929 | DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!"); | |
1930 | return 0; | |
1931 | } | |
1932 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
1933 | DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!"); | |
1934 | return 0; | |
1935 | } | |
1936 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
1937 | DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!"); | |
1938 | return 0; | |
1939 | } | |
1940 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
1941 | DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!"); | |
1942 | return 0; | |
1943 | } | |
1944 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
1945 | DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!"); | |
1946 | return 0; | |
1da177e4 LT |
1947 | } |
1948 | ||
19a60522 SS |
1949 | /* |
1950 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
1951 | * the the P_PLL_LOCK bit in the adapter_status register will | |
1952 | * not be asserted. | |
1953 | */ | |
1954 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
1955 | sp->device_type == XFRAME_II_DEVICE && mode != | |
1956 | PCI_MODE_PCI_33) { | |
1957 | DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!"); | |
1958 | return 0; | |
1959 | } | |
1960 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1961 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
1962 | DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!"); | |
1963 | return 0; | |
1964 | } | |
1965 | return 1; | |
1da177e4 LT |
1966 | } |
1967 | ||
1968 | /** | |
1969 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
1970 | * @sp: Pointer to device specifc structure | |
20346722 | 1971 | * Description : |
1da177e4 LT |
1972 | * New procedure to clear mac address reading problems on Alpha platforms |
1973 | * | |
1974 | */ | |
1975 | ||
1ee6dd77 | 1976 | static void fix_mac_address(struct s2io_nic * sp) |
1da177e4 | 1977 | { |
1ee6dd77 | 1978 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
1979 | u64 val64; |
1980 | int i = 0; | |
1981 | ||
1982 | while (fix_mac[i] != END_SIGN) { | |
1983 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 1984 | udelay(10); |
1da177e4 LT |
1985 | val64 = readq(&bar0->gpio_control); |
1986 | } | |
1987 | } | |
1988 | ||
1989 | /** | |
20346722 | 1990 | * start_nic - Turns the device on |
1da177e4 | 1991 | * @nic : device private variable. |
20346722 K |
1992 | * Description: |
1993 | * This function actually turns the device on. Before this function is | |
1994 | * called,all Registers are configured from their reset states | |
1995 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
1996 | * calling this function, the device interrupts are cleared and the NIC is |
1997 | * literally switched on by writing into the adapter control register. | |
20346722 | 1998 | * Return Value: |
1da177e4 LT |
1999 | * SUCCESS on success and -1 on failure. |
2000 | */ | |
2001 | ||
2002 | static int start_nic(struct s2io_nic *nic) | |
2003 | { | |
1ee6dd77 | 2004 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
2005 | struct net_device *dev = nic->dev; |
2006 | register u64 val64 = 0; | |
20346722 | 2007 | u16 subid, i; |
1ee6dd77 | 2008 | struct mac_info *mac_control; |
1da177e4 LT |
2009 | struct config_param *config; |
2010 | ||
2011 | mac_control = &nic->mac_control; | |
2012 | config = &nic->config; | |
2013 | ||
2014 | /* PRC Initialization and configuration */ | |
2015 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 2016 | writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2017 | &bar0->prc_rxd0_n[i]); |
2018 | ||
2019 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
b6e3f982 K |
2020 | if (nic->config.bimodal) |
2021 | val64 |= PRC_CTRL_BIMODAL_INTERRUPT; | |
da6971d8 AR |
2022 | if (nic->rxd_mode == RXD_MODE_1) |
2023 | val64 |= PRC_CTRL_RC_ENABLED; | |
2024 | else | |
2025 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2026 | if (nic->device_type == XFRAME_II_DEVICE) |
2027 | val64 |= PRC_CTRL_GROUP_READS; | |
2028 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2029 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2030 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2031 | } | |
2032 | ||
da6971d8 AR |
2033 | if (nic->rxd_mode == RXD_MODE_3B) { |
2034 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2035 | val64 = readq(&bar0->rx_pa_cfg); | |
2036 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2037 | writeq(val64, &bar0->rx_pa_cfg); | |
2038 | } | |
1da177e4 | 2039 | |
926930b2 SS |
2040 | if (vlan_tag_strip == 0) { |
2041 | val64 = readq(&bar0->rx_pa_cfg); | |
2042 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
2043 | writeq(val64, &bar0->rx_pa_cfg); | |
2044 | vlan_strip_flag = 0; | |
2045 | } | |
2046 | ||
20346722 | 2047 | /* |
1da177e4 LT |
2048 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2049 | * for around 100ms, which is approximately the time required | |
2050 | * for the device to be ready for operation. | |
2051 | */ | |
2052 | val64 = readq(&bar0->mc_rldram_mrs); | |
2053 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2054 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2055 | val64 = readq(&bar0->mc_rldram_mrs); | |
2056 | ||
20346722 | 2057 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2058 | |
2059 | /* Enabling ECC Protection. */ | |
2060 | val64 = readq(&bar0->adapter_control); | |
2061 | val64 &= ~ADAPTER_ECC_EN; | |
2062 | writeq(val64, &bar0->adapter_control); | |
2063 | ||
20346722 K |
2064 | /* |
2065 | * Clearing any possible Link state change interrupts that | |
1da177e4 LT |
2066 | * could have popped up just before Enabling the card. |
2067 | */ | |
2068 | val64 = readq(&bar0->mac_rmac_err_reg); | |
2069 | if (val64) | |
2070 | writeq(val64, &bar0->mac_rmac_err_reg); | |
2071 | ||
20346722 K |
2072 | /* |
2073 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2074 | * it. |
2075 | */ | |
2076 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 2077 | if (!verify_xena_quiescence(nic)) { |
1da177e4 LT |
2078 | DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name); |
2079 | DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n", | |
2080 | (unsigned long long) val64); | |
2081 | return FAILURE; | |
2082 | } | |
2083 | ||
20346722 | 2084 | /* |
1da177e4 | 2085 | * With some switches, link might be already up at this point. |
20346722 K |
2086 | * Because of this weird behavior, when we enable laser, |
2087 | * we may not get link. We need to handle this. We cannot | |
2088 | * figure out which switch is misbehaving. So we are forced to | |
2089 | * make a global change. | |
1da177e4 LT |
2090 | */ |
2091 | ||
2092 | /* Enabling Laser. */ | |
2093 | val64 = readq(&bar0->adapter_control); | |
2094 | val64 |= ADAPTER_EOI_TX_ON; | |
2095 | writeq(val64, &bar0->adapter_control); | |
2096 | ||
c92ca04b AR |
2097 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2098 | /* | |
2099 | * Dont see link state interrupts initally on some switches, | |
2100 | * so directly scheduling the link state task here. | |
2101 | */ | |
2102 | schedule_work(&nic->set_link_task); | |
2103 | } | |
1da177e4 LT |
2104 | /* SXE-002: Initialize link and activity LED */ |
2105 | subid = nic->pdev->subsystem_device; | |
541ae68f K |
2106 | if (((subid & 0xFF) >= 0x07) && |
2107 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2108 | val64 = readq(&bar0->gpio_control); |
2109 | val64 |= 0x0000800000000000ULL; | |
2110 | writeq(val64, &bar0->gpio_control); | |
2111 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2112 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2113 | } |
2114 | ||
1da177e4 LT |
2115 | return SUCCESS; |
2116 | } | |
fed5eccd AR |
2117 | /** |
2118 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2119 | */ | |
1ee6dd77 RB |
2120 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, struct \ |
2121 | TxD *txdlp, int get_off) | |
fed5eccd | 2122 | { |
1ee6dd77 | 2123 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2124 | struct sk_buff *skb; |
1ee6dd77 | 2125 | struct TxD *txds; |
fed5eccd AR |
2126 | u16 j, frg_cnt; |
2127 | ||
2128 | txds = txdlp; | |
26b7625c | 2129 | if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) { |
fed5eccd AR |
2130 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2131 | txds->Buffer_Pointer, sizeof(u64), | |
2132 | PCI_DMA_TODEVICE); | |
2133 | txds++; | |
2134 | } | |
2135 | ||
2136 | skb = (struct sk_buff *) ((unsigned long) | |
2137 | txds->Host_Control); | |
2138 | if (!skb) { | |
1ee6dd77 | 2139 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2140 | return NULL; |
2141 | } | |
2142 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2143 | txds->Buffer_Pointer, | |
2144 | skb->len - skb->data_len, | |
2145 | PCI_DMA_TODEVICE); | |
2146 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
2147 | if (frg_cnt) { | |
2148 | txds++; | |
2149 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2150 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2151 | if (!txds->Buffer_Pointer) | |
2152 | break; | |
6aa20a22 | 2153 | pci_unmap_page(nic->pdev, (dma_addr_t) |
fed5eccd AR |
2154 | txds->Buffer_Pointer, |
2155 | frag->size, PCI_DMA_TODEVICE); | |
2156 | } | |
2157 | } | |
1ee6dd77 | 2158 | memset(txdlp,0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2159 | return(skb); |
2160 | } | |
1da177e4 | 2161 | |
20346722 K |
2162 | /** |
2163 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2164 | * @nic : device private variable. |
20346722 | 2165 | * Description: |
1da177e4 | 2166 | * Free all queued Tx buffers. |
20346722 | 2167 | * Return Value: void |
1da177e4 LT |
2168 | */ |
2169 | ||
2170 | static void free_tx_buffers(struct s2io_nic *nic) | |
2171 | { | |
2172 | struct net_device *dev = nic->dev; | |
2173 | struct sk_buff *skb; | |
1ee6dd77 | 2174 | struct TxD *txdp; |
1da177e4 | 2175 | int i, j; |
1ee6dd77 | 2176 | struct mac_info *mac_control; |
1da177e4 | 2177 | struct config_param *config; |
fed5eccd | 2178 | int cnt = 0; |
1da177e4 LT |
2179 | |
2180 | mac_control = &nic->mac_control; | |
2181 | config = &nic->config; | |
2182 | ||
2183 | for (i = 0; i < config->tx_fifo_num; i++) { | |
2184 | for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) { | |
491976b2 SH |
2185 | txdp = (struct TxD *) \ |
2186 | mac_control->fifos[i].list_info[j].list_virt_addr; | |
fed5eccd AR |
2187 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2188 | if (skb) { | |
491976b2 SH |
2189 | nic->mac_control.stats_info->sw_stat.mem_freed |
2190 | += skb->truesize; | |
fed5eccd AR |
2191 | dev_kfree_skb(skb); |
2192 | cnt++; | |
1da177e4 | 2193 | } |
1da177e4 LT |
2194 | } |
2195 | DBG_PRINT(INTR_DBG, | |
2196 | "%s:forcibly freeing %d skbs on FIFO%d\n", | |
2197 | dev->name, cnt, i); | |
20346722 K |
2198 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
2199 | mac_control->fifos[i].tx_curr_put_info.offset = 0; | |
1da177e4 LT |
2200 | } |
2201 | } | |
2202 | ||
20346722 K |
2203 | /** |
2204 | * stop_nic - To stop the nic | |
1da177e4 | 2205 | * @nic ; device private variable. |
20346722 K |
2206 | * Description: |
2207 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2208 | * function does. This function is called to stop the device. |
2209 | * Return Value: | |
2210 | * void. | |
2211 | */ | |
2212 | ||
2213 | static void stop_nic(struct s2io_nic *nic) | |
2214 | { | |
1ee6dd77 | 2215 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2216 | register u64 val64 = 0; |
5d3213cc | 2217 | u16 interruptible; |
1ee6dd77 | 2218 | struct mac_info *mac_control; |
1da177e4 LT |
2219 | struct config_param *config; |
2220 | ||
2221 | mac_control = &nic->mac_control; | |
2222 | config = &nic->config; | |
2223 | ||
2224 | /* Disable all interrupts */ | |
e960fc5c | 2225 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
a371a07d K |
2226 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; |
2227 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
1da177e4 LT |
2228 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2229 | ||
5d3213cc AR |
2230 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2231 | val64 = readq(&bar0->adapter_control); | |
2232 | val64 &= ~(ADAPTER_CNTL_EN); | |
2233 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2234 | } |
2235 | ||
20346722 K |
2236 | /** |
2237 | * fill_rx_buffers - Allocates the Rx side skbs | |
1da177e4 | 2238 | * @nic: device private variable |
20346722 K |
2239 | * @ring_no: ring number |
2240 | * Description: | |
1da177e4 LT |
2241 | * The function allocates Rx side skbs and puts the physical |
2242 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2243 | * can DMA the received frame into these locations. | |
2244 | * The NIC supports 3 receive modes, viz | |
2245 | * 1. single buffer, | |
2246 | * 2. three buffer and | |
2247 | * 3. Five buffer modes. | |
20346722 K |
2248 | * Each mode defines how many fragments the received frame will be split |
2249 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2250 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2251 | * is split into 3 fragments. As of now only single buffer mode is | |
2252 | * supported. | |
2253 | * Return Value: | |
2254 | * SUCCESS on success or an appropriate -ve value on failure. | |
2255 | */ | |
2256 | ||
ac1f60db | 2257 | static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) |
1da177e4 LT |
2258 | { |
2259 | struct net_device *dev = nic->dev; | |
2260 | struct sk_buff *skb; | |
1ee6dd77 | 2261 | struct RxD_t *rxdp; |
1da177e4 | 2262 | int off, off1, size, block_no, block_no1; |
1da177e4 | 2263 | u32 alloc_tab = 0; |
20346722 | 2264 | u32 alloc_cnt; |
1ee6dd77 | 2265 | struct mac_info *mac_control; |
1da177e4 | 2266 | struct config_param *config; |
20346722 | 2267 | u64 tmp; |
1ee6dd77 | 2268 | struct buffAdd *ba; |
1da177e4 | 2269 | unsigned long flags; |
1ee6dd77 | 2270 | struct RxD_t *first_rxdp = NULL; |
363dc367 | 2271 | u64 Buffer0_ptr = 0, Buffer1_ptr = 0; |
6d517a27 VP |
2272 | struct RxD1 *rxdp1; |
2273 | struct RxD3 *rxdp3; | |
1da177e4 LT |
2274 | |
2275 | mac_control = &nic->mac_control; | |
2276 | config = &nic->config; | |
20346722 K |
2277 | alloc_cnt = mac_control->rings[ring_no].pkt_cnt - |
2278 | atomic_read(&nic->rx_bufs_left[ring_no]); | |
1da177e4 | 2279 | |
5d3213cc | 2280 | block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index; |
863c11a9 | 2281 | off1 = mac_control->rings[ring_no].rx_curr_get_info.offset; |
1da177e4 | 2282 | while (alloc_tab < alloc_cnt) { |
20346722 | 2283 | block_no = mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2284 | block_index; |
20346722 | 2285 | off = mac_control->rings[ring_no].rx_curr_put_info.offset; |
1da177e4 | 2286 | |
da6971d8 AR |
2287 | rxdp = mac_control->rings[ring_no]. |
2288 | rx_blocks[block_no].rxds[off].virt_addr; | |
2289 | ||
2290 | if ((block_no == block_no1) && (off == off1) && | |
2291 | (rxdp->Host_Control)) { | |
2292 | DBG_PRINT(INTR_DBG, "%s: Get and Put", | |
2293 | dev->name); | |
1da177e4 LT |
2294 | DBG_PRINT(INTR_DBG, " info equated\n"); |
2295 | goto end; | |
2296 | } | |
da6971d8 | 2297 | if (off && (off == rxd_count[nic->rxd_mode])) { |
20346722 | 2298 | mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2299 | block_index++; |
da6971d8 AR |
2300 | if (mac_control->rings[ring_no].rx_curr_put_info. |
2301 | block_index == mac_control->rings[ring_no]. | |
2302 | block_count) | |
2303 | mac_control->rings[ring_no].rx_curr_put_info. | |
2304 | block_index = 0; | |
2305 | block_no = mac_control->rings[ring_no]. | |
2306 | rx_curr_put_info.block_index; | |
2307 | if (off == rxd_count[nic->rxd_mode]) | |
2308 | off = 0; | |
20346722 | 2309 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 AR |
2310 | offset = off; |
2311 | rxdp = mac_control->rings[ring_no]. | |
2312 | rx_blocks[block_no].block_virt_addr; | |
1da177e4 LT |
2313 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
2314 | dev->name, rxdp); | |
2315 | } | |
db874e65 SS |
2316 | if(!napi) { |
2317 | spin_lock_irqsave(&nic->put_lock, flags); | |
2318 | mac_control->rings[ring_no].put_pos = | |
2319 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2320 | spin_unlock_irqrestore(&nic->put_lock, flags); | |
2321 | } else { | |
2322 | mac_control->rings[ring_no].put_pos = | |
2323 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2324 | } | |
da6971d8 | 2325 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
6d517a27 | 2326 | ((nic->rxd_mode == RXD_MODE_3B) && |
da6971d8 | 2327 | (rxdp->Control_2 & BIT(0)))) { |
20346722 | 2328 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 | 2329 | offset = off; |
1da177e4 LT |
2330 | goto end; |
2331 | } | |
da6971d8 AR |
2332 | /* calculate size of skb based on ring mode */ |
2333 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
2334 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
2335 | if (nic->rxd_mode == RXD_MODE_1) | |
2336 | size += NET_IP_ALIGN; | |
da6971d8 | 2337 | else |
6d517a27 | 2338 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; |
1da177e4 | 2339 | |
da6971d8 AR |
2340 | /* allocate skb */ |
2341 | skb = dev_alloc_skb(size); | |
2342 | if(!skb) { | |
0c61ed5f RV |
2343 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
2344 | DBG_PRINT(INFO_DBG, "memory to allocate SKBs\n"); | |
303bcb4b K |
2345 | if (first_rxdp) { |
2346 | wmb(); | |
2347 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2348 | } | |
c53d4945 SH |
2349 | nic->mac_control.stats_info->sw_stat. \ |
2350 | mem_alloc_fail_cnt++; | |
da6971d8 AR |
2351 | return -ENOMEM ; |
2352 | } | |
491976b2 SH |
2353 | nic->mac_control.stats_info->sw_stat.mem_allocated |
2354 | += skb->truesize; | |
da6971d8 AR |
2355 | if (nic->rxd_mode == RXD_MODE_1) { |
2356 | /* 1 buffer mode - normal operation mode */ | |
6d517a27 | 2357 | rxdp1 = (struct RxD1*)rxdp; |
1ee6dd77 | 2358 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2359 | skb_reserve(skb, NET_IP_ALIGN); |
6d517a27 | 2360 | rxdp1->Buffer0_ptr = pci_map_single |
863c11a9 AR |
2361 | (nic->pdev, skb->data, size - NET_IP_ALIGN, |
2362 | PCI_DMA_FROMDEVICE); | |
491976b2 SH |
2363 | rxdp->Control_2 = |
2364 | SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); | |
da6971d8 | 2365 | |
6d517a27 | 2366 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
da6971d8 | 2367 | /* |
6d517a27 VP |
2368 | * 2 buffer mode - |
2369 | * 2 buffer mode provides 128 | |
da6971d8 | 2370 | * byte aligned receive buffers. |
da6971d8 AR |
2371 | */ |
2372 | ||
6d517a27 | 2373 | rxdp3 = (struct RxD3*)rxdp; |
491976b2 | 2374 | /* save buffer pointers to avoid frequent dma mapping */ |
6d517a27 VP |
2375 | Buffer0_ptr = rxdp3->Buffer0_ptr; |
2376 | Buffer1_ptr = rxdp3->Buffer1_ptr; | |
1ee6dd77 | 2377 | memset(rxdp, 0, sizeof(struct RxD3)); |
363dc367 | 2378 | /* restore the buffer pointers for dma sync*/ |
6d517a27 VP |
2379 | rxdp3->Buffer0_ptr = Buffer0_ptr; |
2380 | rxdp3->Buffer1_ptr = Buffer1_ptr; | |
363dc367 | 2381 | |
da6971d8 AR |
2382 | ba = &mac_control->rings[ring_no].ba[block_no][off]; |
2383 | skb_reserve(skb, BUF0_LEN); | |
2384 | tmp = (u64)(unsigned long) skb->data; | |
2385 | tmp += ALIGN_SIZE; | |
2386 | tmp &= ~ALIGN_SIZE; | |
2387 | skb->data = (void *) (unsigned long)tmp; | |
27a884dc | 2388 | skb_reset_tail_pointer(skb); |
da6971d8 | 2389 | |
6d517a27 VP |
2390 | if (!(rxdp3->Buffer0_ptr)) |
2391 | rxdp3->Buffer0_ptr = | |
75c30b13 | 2392 | pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, |
da6971d8 | 2393 | PCI_DMA_FROMDEVICE); |
75c30b13 AR |
2394 | else |
2395 | pci_dma_sync_single_for_device(nic->pdev, | |
6d517a27 | 2396 | (dma_addr_t) rxdp3->Buffer0_ptr, |
75c30b13 | 2397 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
da6971d8 AR |
2398 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
2399 | if (nic->rxd_mode == RXD_MODE_3B) { | |
2400 | /* Two buffer mode */ | |
2401 | ||
2402 | /* | |
6aa20a22 | 2403 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2404 | * L4 payload |
2405 | */ | |
6d517a27 | 2406 | rxdp3->Buffer2_ptr = pci_map_single |
da6971d8 AR |
2407 | (nic->pdev, skb->data, dev->mtu + 4, |
2408 | PCI_DMA_FROMDEVICE); | |
2409 | ||
75c30b13 | 2410 | /* Buffer-1 will be dummy buffer. Not used */ |
6d517a27 VP |
2411 | if (!(rxdp3->Buffer1_ptr)) { |
2412 | rxdp3->Buffer1_ptr = | |
6aa20a22 | 2413 | pci_map_single(nic->pdev, |
75c30b13 AR |
2414 | ba->ba_1, BUF1_LEN, |
2415 | PCI_DMA_FROMDEVICE); | |
2416 | } | |
da6971d8 AR |
2417 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2418 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
2419 | (dev->mtu + 4); | |
da6971d8 AR |
2420 | } |
2421 | rxdp->Control_2 |= BIT(0); | |
1da177e4 | 2422 | } |
1da177e4 | 2423 | rxdp->Host_Control = (unsigned long) (skb); |
303bcb4b K |
2424 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2425 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2426 | off++; |
da6971d8 AR |
2427 | if (off == (rxd_count[nic->rxd_mode] + 1)) |
2428 | off = 0; | |
20346722 | 2429 | mac_control->rings[ring_no].rx_curr_put_info.offset = off; |
20346722 | 2430 | |
da6971d8 | 2431 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b K |
2432 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2433 | if (first_rxdp) { | |
2434 | wmb(); | |
2435 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2436 | } | |
2437 | first_rxdp = rxdp; | |
2438 | } | |
1da177e4 LT |
2439 | atomic_inc(&nic->rx_bufs_left[ring_no]); |
2440 | alloc_tab++; | |
2441 | } | |
2442 | ||
2443 | end: | |
303bcb4b K |
2444 | /* Transfer ownership of first descriptor to adapter just before |
2445 | * exiting. Before that, use memory barrier so that ownership | |
2446 | * and other fields are seen by adapter correctly. | |
2447 | */ | |
2448 | if (first_rxdp) { | |
2449 | wmb(); | |
2450 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2451 | } | |
2452 | ||
1da177e4 LT |
2453 | return SUCCESS; |
2454 | } | |
2455 | ||
da6971d8 AR |
2456 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2457 | { | |
2458 | struct net_device *dev = sp->dev; | |
2459 | int j; | |
2460 | struct sk_buff *skb; | |
1ee6dd77 RB |
2461 | struct RxD_t *rxdp; |
2462 | struct mac_info *mac_control; | |
2463 | struct buffAdd *ba; | |
6d517a27 VP |
2464 | struct RxD1 *rxdp1; |
2465 | struct RxD3 *rxdp3; | |
da6971d8 AR |
2466 | |
2467 | mac_control = &sp->mac_control; | |
2468 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { | |
2469 | rxdp = mac_control->rings[ring_no]. | |
2470 | rx_blocks[blk].rxds[j].virt_addr; | |
2471 | skb = (struct sk_buff *) | |
2472 | ((unsigned long) rxdp->Host_Control); | |
2473 | if (!skb) { | |
2474 | continue; | |
2475 | } | |
2476 | if (sp->rxd_mode == RXD_MODE_1) { | |
6d517a27 | 2477 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2478 | pci_unmap_single(sp->pdev, (dma_addr_t) |
6d517a27 VP |
2479 | rxdp1->Buffer0_ptr, |
2480 | dev->mtu + | |
2481 | HEADER_ETHERNET_II_802_3_SIZE | |
2482 | + HEADER_802_2_SIZE + | |
2483 | HEADER_SNAP_SIZE, | |
2484 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2485 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2486 | } else if(sp->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2487 | rxdp3 = (struct RxD3*)rxdp; |
da6971d8 AR |
2488 | ba = &mac_control->rings[ring_no]. |
2489 | ba[blk][j]; | |
2490 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2491 | rxdp3->Buffer0_ptr, |
2492 | BUF0_LEN, | |
da6971d8 AR |
2493 | PCI_DMA_FROMDEVICE); |
2494 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2495 | rxdp3->Buffer1_ptr, |
2496 | BUF1_LEN, | |
da6971d8 AR |
2497 | PCI_DMA_FROMDEVICE); |
2498 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
6d517a27 VP |
2499 | rxdp3->Buffer2_ptr, |
2500 | dev->mtu + 4, | |
da6971d8 | 2501 | PCI_DMA_FROMDEVICE); |
1ee6dd77 | 2502 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 | 2503 | } |
491976b2 | 2504 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
da6971d8 AR |
2505 | dev_kfree_skb(skb); |
2506 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
2507 | } | |
2508 | } | |
2509 | ||
1da177e4 | 2510 | /** |
20346722 | 2511 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2512 | * @sp: device private variable. |
20346722 | 2513 | * Description: |
1da177e4 LT |
2514 | * This function will free all Rx buffers allocated by host. |
2515 | * Return Value: | |
2516 | * NONE. | |
2517 | */ | |
2518 | ||
2519 | static void free_rx_buffers(struct s2io_nic *sp) | |
2520 | { | |
2521 | struct net_device *dev = sp->dev; | |
da6971d8 | 2522 | int i, blk = 0, buf_cnt = 0; |
1ee6dd77 | 2523 | struct mac_info *mac_control; |
1da177e4 | 2524 | struct config_param *config; |
1da177e4 LT |
2525 | |
2526 | mac_control = &sp->mac_control; | |
2527 | config = &sp->config; | |
2528 | ||
2529 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
2530 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
2531 | free_rxd_blk(sp,i,blk); | |
1da177e4 | 2532 | |
20346722 K |
2533 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
2534 | mac_control->rings[i].rx_curr_get_info.block_index = 0; | |
2535 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
2536 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
1da177e4 LT |
2537 | atomic_set(&sp->rx_bufs_left[i], 0); |
2538 | DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n", | |
2539 | dev->name, buf_cnt, i); | |
2540 | } | |
2541 | } | |
2542 | ||
2543 | /** | |
2544 | * s2io_poll - Rx interrupt handler for NAPI support | |
2545 | * @dev : pointer to the device structure. | |
20346722 | 2546 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2547 | * during one pass through the 'Poll" function. |
2548 | * Description: | |
2549 | * Comes into picture only if NAPI support has been incorporated. It does | |
2550 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2551 | * also It will process only a given number of packets. | |
2552 | * Return value: | |
2553 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2554 | */ | |
2555 | ||
1da177e4 LT |
2556 | static int s2io_poll(struct net_device *dev, int *budget) |
2557 | { | |
1ee6dd77 | 2558 | struct s2io_nic *nic = dev->priv; |
20346722 | 2559 | int pkt_cnt = 0, org_pkts_to_process; |
1ee6dd77 | 2560 | struct mac_info *mac_control; |
1da177e4 | 2561 | struct config_param *config; |
1ee6dd77 | 2562 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
20346722 | 2563 | int i; |
1da177e4 | 2564 | |
7ba013ac | 2565 | atomic_inc(&nic->isr_cnt); |
1da177e4 LT |
2566 | mac_control = &nic->mac_control; |
2567 | config = &nic->config; | |
2568 | ||
20346722 K |
2569 | nic->pkts_to_process = *budget; |
2570 | if (nic->pkts_to_process > dev->quota) | |
2571 | nic->pkts_to_process = dev->quota; | |
2572 | org_pkts_to_process = nic->pkts_to_process; | |
1da177e4 | 2573 | |
19a60522 SS |
2574 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
2575 | readl(&bar0->rx_traffic_int); | |
1da177e4 LT |
2576 | |
2577 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
2578 | rx_intr_handler(&mac_control->rings[i]); |
2579 | pkt_cnt = org_pkts_to_process - nic->pkts_to_process; | |
2580 | if (!nic->pkts_to_process) { | |
2581 | /* Quota for the current iteration has been met */ | |
2582 | goto no_rx; | |
1da177e4 | 2583 | } |
1da177e4 LT |
2584 | } |
2585 | if (!pkt_cnt) | |
2586 | pkt_cnt = 1; | |
2587 | ||
2588 | dev->quota -= pkt_cnt; | |
2589 | *budget -= pkt_cnt; | |
2590 | netif_rx_complete(dev); | |
2591 | ||
2592 | for (i = 0; i < config->rx_ring_num; i++) { | |
2593 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2594 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2595 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2596 | break; |
2597 | } | |
2598 | } | |
2599 | /* Re enable the Rx interrupts. */ | |
c92ca04b | 2600 | writeq(0x0, &bar0->rx_traffic_mask); |
19a60522 | 2601 | readl(&bar0->rx_traffic_mask); |
7ba013ac | 2602 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2603 | return 0; |
2604 | ||
20346722 | 2605 | no_rx: |
1da177e4 LT |
2606 | dev->quota -= pkt_cnt; |
2607 | *budget -= pkt_cnt; | |
2608 | ||
2609 | for (i = 0; i < config->rx_ring_num; i++) { | |
2610 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2611 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2612 | DBG_PRINT(INFO_DBG, " in Rx Poll!!\n"); | |
1da177e4 LT |
2613 | break; |
2614 | } | |
2615 | } | |
7ba013ac | 2616 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2617 | return 1; |
2618 | } | |
20346722 | 2619 | |
b41477f3 | 2620 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2621 | /** |
b41477f3 | 2622 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2623 | * @dev : pointer to the device structure. |
2624 | * Description: | |
b41477f3 AR |
2625 | * This function will be called by upper layer to check for events on the |
2626 | * interface in situations where interrupts are disabled. It is used for | |
2627 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2628 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2629 | */ |
612eff0e BH |
2630 | static void s2io_netpoll(struct net_device *dev) |
2631 | { | |
1ee6dd77 RB |
2632 | struct s2io_nic *nic = dev->priv; |
2633 | struct mac_info *mac_control; | |
612eff0e | 2634 | struct config_param *config; |
1ee6dd77 | 2635 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2636 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e BH |
2637 | int i; |
2638 | ||
d796fdb7 LV |
2639 | if (pci_channel_offline(nic->pdev)) |
2640 | return; | |
2641 | ||
612eff0e BH |
2642 | disable_irq(dev->irq); |
2643 | ||
2644 | atomic_inc(&nic->isr_cnt); | |
2645 | mac_control = &nic->mac_control; | |
2646 | config = &nic->config; | |
2647 | ||
612eff0e | 2648 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2649 | writeq(val64, &bar0->tx_traffic_int); |
2650 | ||
6aa20a22 | 2651 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2652 | * run out of skbs and will fail and eventually netpoll application such |
2653 | * as netdump will fail. | |
2654 | */ | |
2655 | for (i = 0; i < config->tx_fifo_num; i++) | |
2656 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2657 | |
b41477f3 | 2658 | /* check for received packet and indicate up to network */ |
612eff0e BH |
2659 | for (i = 0; i < config->rx_ring_num; i++) |
2660 | rx_intr_handler(&mac_control->rings[i]); | |
2661 | ||
2662 | for (i = 0; i < config->rx_ring_num; i++) { | |
2663 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
0c61ed5f RV |
2664 | DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); |
2665 | DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n"); | |
612eff0e BH |
2666 | break; |
2667 | } | |
2668 | } | |
2669 | atomic_dec(&nic->isr_cnt); | |
2670 | enable_irq(dev->irq); | |
2671 | return; | |
2672 | } | |
2673 | #endif | |
2674 | ||
20346722 | 2675 | /** |
1da177e4 LT |
2676 | * rx_intr_handler - Rx interrupt handler |
2677 | * @nic: device private variable. | |
20346722 K |
2678 | * Description: |
2679 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2680 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 K |
2681 | * called. It picks out the RxD at which place the last Rx processing had |
2682 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2683 | * the offset. |
2684 | * Return Value: | |
2685 | * NONE. | |
2686 | */ | |
1ee6dd77 | 2687 | static void rx_intr_handler(struct ring_info *ring_data) |
1da177e4 | 2688 | { |
1ee6dd77 | 2689 | struct s2io_nic *nic = ring_data->nic; |
1da177e4 | 2690 | struct net_device *dev = (struct net_device *) nic->dev; |
da6971d8 | 2691 | int get_block, put_block, put_offset; |
1ee6dd77 RB |
2692 | struct rx_curr_get_info get_info, put_info; |
2693 | struct RxD_t *rxdp; | |
1da177e4 | 2694 | struct sk_buff *skb; |
20346722 | 2695 | int pkt_cnt = 0; |
7d3d0439 | 2696 | int i; |
6d517a27 VP |
2697 | struct RxD1* rxdp1; |
2698 | struct RxD3* rxdp3; | |
7d3d0439 | 2699 | |
7ba013ac K |
2700 | spin_lock(&nic->rx_lock); |
2701 | if (atomic_read(&nic->card_state) == CARD_DOWN) { | |
776bd20f | 2702 | DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n", |
7ba013ac K |
2703 | __FUNCTION__, dev->name); |
2704 | spin_unlock(&nic->rx_lock); | |
776bd20f | 2705 | return; |
7ba013ac K |
2706 | } |
2707 | ||
20346722 K |
2708 | get_info = ring_data->rx_curr_get_info; |
2709 | get_block = get_info.block_index; | |
1ee6dd77 | 2710 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2711 | put_block = put_info.block_index; |
da6971d8 | 2712 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 SS |
2713 | if (!napi) { |
2714 | spin_lock(&nic->put_lock); | |
2715 | put_offset = ring_data->put_pos; | |
2716 | spin_unlock(&nic->put_lock); | |
2717 | } else | |
2718 | put_offset = ring_data->put_pos; | |
2719 | ||
da6971d8 | 2720 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2721 | /* |
2722 | * If your are next to put index then it's | |
2723 | * FIFO full condition | |
2724 | */ | |
da6971d8 AR |
2725 | if ((get_block == put_block) && |
2726 | (get_info.offset + 1) == put_info.offset) { | |
75c30b13 | 2727 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); |
da6971d8 AR |
2728 | break; |
2729 | } | |
20346722 K |
2730 | skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); |
2731 | if (skb == NULL) { | |
2732 | DBG_PRINT(ERR_DBG, "%s: The skb is ", | |
2733 | dev->name); | |
2734 | DBG_PRINT(ERR_DBG, "Null in Rx Intr\n"); | |
7ba013ac | 2735 | spin_unlock(&nic->rx_lock); |
20346722 | 2736 | return; |
1da177e4 | 2737 | } |
da6971d8 | 2738 | if (nic->rxd_mode == RXD_MODE_1) { |
6d517a27 | 2739 | rxdp1 = (struct RxD1*)rxdp; |
da6971d8 | 2740 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2741 | rxdp1->Buffer0_ptr, |
2742 | dev->mtu + | |
2743 | HEADER_ETHERNET_II_802_3_SIZE + | |
2744 | HEADER_802_2_SIZE + | |
2745 | HEADER_SNAP_SIZE, | |
2746 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2747 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
6d517a27 | 2748 | rxdp3 = (struct RxD3*)rxdp; |
75c30b13 | 2749 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2750 | rxdp3->Buffer0_ptr, |
2751 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
da6971d8 | 2752 | pci_unmap_single(nic->pdev, (dma_addr_t) |
6d517a27 VP |
2753 | rxdp3->Buffer2_ptr, |
2754 | dev->mtu + 4, | |
2755 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2756 | } |
863c11a9 | 2757 | prefetch(skb->data); |
20346722 K |
2758 | rx_osm_handler(ring_data, rxdp); |
2759 | get_info.offset++; | |
da6971d8 AR |
2760 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2761 | rxdp = ring_data->rx_blocks[get_block]. | |
2762 | rxds[get_info.offset].virt_addr; | |
2763 | if (get_info.offset == rxd_count[nic->rxd_mode]) { | |
20346722 | 2764 | get_info.offset = 0; |
da6971d8 | 2765 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2766 | get_block++; |
da6971d8 AR |
2767 | if (get_block == ring_data->block_count) |
2768 | get_block = 0; | |
2769 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 K |
2770 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2771 | } | |
1da177e4 | 2772 | |
20346722 | 2773 | nic->pkts_to_process -= 1; |
db874e65 | 2774 | if ((napi) && (!nic->pkts_to_process)) |
20346722 | 2775 | break; |
20346722 | 2776 | pkt_cnt++; |
1da177e4 LT |
2777 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2778 | break; | |
2779 | } | |
7d3d0439 RA |
2780 | if (nic->lro) { |
2781 | /* Clear all LRO sessions before exiting */ | |
2782 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 2783 | struct lro *lro = &nic->lro0_n[i]; |
7d3d0439 RA |
2784 | if (lro->in_use) { |
2785 | update_L3L4_header(nic, lro); | |
2786 | queue_rx_frame(lro->parent); | |
2787 | clear_lro_session(lro); | |
2788 | } | |
2789 | } | |
2790 | } | |
2791 | ||
7ba013ac | 2792 | spin_unlock(&nic->rx_lock); |
1da177e4 | 2793 | } |
20346722 K |
2794 | |
2795 | /** | |
1da177e4 LT |
2796 | * tx_intr_handler - Transmit interrupt handler |
2797 | * @nic : device private variable | |
20346722 K |
2798 | * Description: |
2799 | * If an interrupt was raised to indicate DMA complete of the | |
2800 | * Tx packet, this function is called. It identifies the last TxD | |
2801 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
2802 | * DMA'ed into the NICs internal memory. |
2803 | * Return Value: | |
2804 | * NONE | |
2805 | */ | |
2806 | ||
1ee6dd77 | 2807 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 2808 | { |
1ee6dd77 | 2809 | struct s2io_nic *nic = fifo_data->nic; |
1da177e4 | 2810 | struct net_device *dev = (struct net_device *) nic->dev; |
1ee6dd77 | 2811 | struct tx_curr_get_info get_info, put_info; |
1da177e4 | 2812 | struct sk_buff *skb; |
1ee6dd77 | 2813 | struct TxD *txdlp; |
f9046eb3 | 2814 | u8 err_mask; |
1da177e4 | 2815 | |
20346722 | 2816 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 RB |
2817 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
2818 | txdlp = (struct TxD *) fifo_data->list_info[get_info.offset]. | |
20346722 K |
2819 | list_virt_addr; |
2820 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && | |
2821 | (get_info.offset != put_info.offset) && | |
2822 | (txdlp->Host_Control)) { | |
2823 | /* Check for TxD errors */ | |
2824 | if (txdlp->Control_1 & TXD_T_CODE) { | |
2825 | unsigned long long err; | |
2826 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 AR |
2827 | if (err & 0x1) { |
2828 | nic->mac_control.stats_info->sw_stat. | |
2829 | parity_err_cnt++; | |
2830 | } | |
491976b2 SH |
2831 | |
2832 | /* update t_code statistics */ | |
f9046eb3 OH |
2833 | err_mask = err >> 48; |
2834 | switch(err_mask) { | |
491976b2 SH |
2835 | case 2: |
2836 | nic->mac_control.stats_info->sw_stat. | |
2837 | tx_buf_abort_cnt++; | |
2838 | break; | |
2839 | ||
2840 | case 3: | |
2841 | nic->mac_control.stats_info->sw_stat. | |
2842 | tx_desc_abort_cnt++; | |
2843 | break; | |
2844 | ||
2845 | case 7: | |
2846 | nic->mac_control.stats_info->sw_stat. | |
2847 | tx_parity_err_cnt++; | |
2848 | break; | |
2849 | ||
2850 | case 10: | |
2851 | nic->mac_control.stats_info->sw_stat. | |
2852 | tx_link_loss_cnt++; | |
2853 | break; | |
2854 | ||
2855 | case 15: | |
2856 | nic->mac_control.stats_info->sw_stat. | |
2857 | tx_list_proc_err_cnt++; | |
2858 | break; | |
2859 | } | |
20346722 | 2860 | } |
1da177e4 | 2861 | |
fed5eccd | 2862 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 K |
2863 | if (skb == NULL) { |
2864 | DBG_PRINT(ERR_DBG, "%s: Null skb ", | |
2865 | __FUNCTION__); | |
2866 | DBG_PRINT(ERR_DBG, "in Tx Free Intr\n"); | |
2867 | return; | |
2868 | } | |
2869 | ||
20346722 | 2870 | /* Updating the statistics block */ |
20346722 | 2871 | nic->stats.tx_bytes += skb->len; |
491976b2 | 2872 | nic->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
20346722 K |
2873 | dev_kfree_skb_irq(skb); |
2874 | ||
2875 | get_info.offset++; | |
863c11a9 AR |
2876 | if (get_info.offset == get_info.fifo_len + 1) |
2877 | get_info.offset = 0; | |
1ee6dd77 | 2878 | txdlp = (struct TxD *) fifo_data->list_info |
20346722 K |
2879 | [get_info.offset].list_virt_addr; |
2880 | fifo_data->tx_curr_get_info.offset = | |
2881 | get_info.offset; | |
1da177e4 LT |
2882 | } |
2883 | ||
2884 | spin_lock(&nic->tx_lock); | |
2885 | if (netif_queue_stopped(dev)) | |
2886 | netif_wake_queue(dev); | |
2887 | spin_unlock(&nic->tx_lock); | |
2888 | } | |
2889 | ||
bd1034f0 AR |
2890 | /** |
2891 | * s2io_mdio_write - Function to write in to MDIO registers | |
2892 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2893 | * @addr : address value | |
2894 | * @value : data value | |
2895 | * @dev : pointer to net_device structure | |
2896 | * Description: | |
2897 | * This function is used to write values to the MDIO registers | |
2898 | * NONE | |
2899 | */ | |
2900 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev) | |
2901 | { | |
2902 | u64 val64 = 0x0; | |
1ee6dd77 RB |
2903 | struct s2io_nic *sp = dev->priv; |
2904 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2905 | |
2906 | //address transaction | |
2907 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2908 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2909 | | MDIO_MMS_PRT_ADDR(0x0); | |
2910 | writeq(val64, &bar0->mdio_control); | |
2911 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2912 | writeq(val64, &bar0->mdio_control); | |
2913 | udelay(100); | |
2914 | ||
2915 | //Data transaction | |
2916 | val64 = 0x0; | |
2917 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2918 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2919 | | MDIO_MMS_PRT_ADDR(0x0) | |
2920 | | MDIO_MDIO_DATA(value) | |
2921 | | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
2922 | writeq(val64, &bar0->mdio_control); | |
2923 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2924 | writeq(val64, &bar0->mdio_control); | |
2925 | udelay(100); | |
2926 | ||
2927 | val64 = 0x0; | |
2928 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2929 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2930 | | MDIO_MMS_PRT_ADDR(0x0) | |
2931 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2932 | writeq(val64, &bar0->mdio_control); | |
2933 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2934 | writeq(val64, &bar0->mdio_control); | |
2935 | udelay(100); | |
2936 | ||
2937 | } | |
2938 | ||
2939 | /** | |
2940 | * s2io_mdio_read - Function to write in to MDIO registers | |
2941 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2942 | * @addr : address value | |
2943 | * @dev : pointer to net_device structure | |
2944 | * Description: | |
2945 | * This function is used to read values to the MDIO registers | |
2946 | * NONE | |
2947 | */ | |
2948 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
2949 | { | |
2950 | u64 val64 = 0x0; | |
2951 | u64 rval64 = 0x0; | |
1ee6dd77 RB |
2952 | struct s2io_nic *sp = dev->priv; |
2953 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2954 | |
2955 | /* address transaction */ | |
2956 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2957 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2958 | | MDIO_MMS_PRT_ADDR(0x0); | |
2959 | writeq(val64, &bar0->mdio_control); | |
2960 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2961 | writeq(val64, &bar0->mdio_control); | |
2962 | udelay(100); | |
2963 | ||
2964 | /* Data transaction */ | |
2965 | val64 = 0x0; | |
2966 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2967 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2968 | | MDIO_MMS_PRT_ADDR(0x0) | |
2969 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2970 | writeq(val64, &bar0->mdio_control); | |
2971 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2972 | writeq(val64, &bar0->mdio_control); | |
2973 | udelay(100); | |
2974 | ||
2975 | /* Read the value from regs */ | |
2976 | rval64 = readq(&bar0->mdio_control); | |
2977 | rval64 = rval64 & 0xFFFF0000; | |
2978 | rval64 = rval64 >> 16; | |
2979 | return rval64; | |
2980 | } | |
2981 | /** | |
2982 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
2983 | * @counter : couter value to be updated | |
2984 | * @flag : flag to indicate the status | |
2985 | * @type : counter type | |
2986 | * Description: | |
2987 | * This function is to check the status of the xpak counters value | |
2988 | * NONE | |
2989 | */ | |
2990 | ||
2991 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type) | |
2992 | { | |
2993 | u64 mask = 0x3; | |
2994 | u64 val64; | |
2995 | int i; | |
2996 | for(i = 0; i <index; i++) | |
2997 | mask = mask << 0x2; | |
2998 | ||
2999 | if(flag > 0) | |
3000 | { | |
3001 | *counter = *counter + 1; | |
3002 | val64 = *regs_stat & mask; | |
3003 | val64 = val64 >> (index * 0x2); | |
3004 | val64 = val64 + 1; | |
3005 | if(val64 == 3) | |
3006 | { | |
3007 | switch(type) | |
3008 | { | |
3009 | case 1: | |
3010 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3011 | "service. Excessive temperatures may " | |
3012 | "result in premature transceiver " | |
3013 | "failure \n"); | |
3014 | break; | |
3015 | case 2: | |
3016 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3017 | "service Excessive bias currents may " | |
3018 | "indicate imminent laser diode " | |
3019 | "failure \n"); | |
3020 | break; | |
3021 | case 3: | |
3022 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3023 | "service Excessive laser output " | |
3024 | "power may saturate far-end " | |
3025 | "receiver\n"); | |
3026 | break; | |
3027 | default: | |
3028 | DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm " | |
3029 | "type \n"); | |
3030 | } | |
3031 | val64 = 0x0; | |
3032 | } | |
3033 | val64 = val64 << (index * 0x2); | |
3034 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3035 | ||
3036 | } else { | |
3037 | *regs_stat = *regs_stat & (~mask); | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | /** | |
3042 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3043 | * @dev : pointer to net_device struct | |
3044 | * Description: | |
3045 | * This function is to upate the status of the xpak counters value | |
3046 | * NONE | |
3047 | */ | |
3048 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3049 | { | |
3050 | u16 flag = 0x0; | |
3051 | u16 type = 0x0; | |
3052 | u16 val16 = 0x0; | |
3053 | u64 val64 = 0x0; | |
3054 | u64 addr = 0x0; | |
3055 | ||
1ee6dd77 RB |
3056 | struct s2io_nic *sp = dev->priv; |
3057 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
bd1034f0 AR |
3058 | |
3059 | /* Check the communication with the MDIO slave */ | |
3060 | addr = 0x0000; | |
3061 | val64 = 0x0; | |
3062 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3063 | if((val64 == 0xFFFF) || (val64 == 0x0000)) | |
3064 | { | |
3065 | DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - " | |
3066 | "Returned %llx\n", (unsigned long long)val64); | |
3067 | return; | |
3068 | } | |
3069 | ||
3070 | /* Check for the expecte value of 2040 at PMA address 0x0000 */ | |
3071 | if(val64 != 0x2040) | |
3072 | { | |
3073 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "); | |
3074 | DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n", | |
3075 | (unsigned long long)val64); | |
3076 | return; | |
3077 | } | |
3078 | ||
3079 | /* Loading the DOM register to MDIO register */ | |
3080 | addr = 0xA100; | |
3081 | s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev); | |
3082 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3083 | ||
3084 | /* Reading the Alarm flags */ | |
3085 | addr = 0xA070; | |
3086 | val64 = 0x0; | |
3087 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3088 | ||
3089 | flag = CHECKBIT(val64, 0x7); | |
3090 | type = 1; | |
3091 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high, | |
3092 | &stat_info->xpak_stat.xpak_regs_stat, | |
3093 | 0x0, flag, type); | |
3094 | ||
3095 | if(CHECKBIT(val64, 0x6)) | |
3096 | stat_info->xpak_stat.alarm_transceiver_temp_low++; | |
3097 | ||
3098 | flag = CHECKBIT(val64, 0x3); | |
3099 | type = 2; | |
3100 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high, | |
3101 | &stat_info->xpak_stat.xpak_regs_stat, | |
3102 | 0x2, flag, type); | |
3103 | ||
3104 | if(CHECKBIT(val64, 0x2)) | |
3105 | stat_info->xpak_stat.alarm_laser_bias_current_low++; | |
3106 | ||
3107 | flag = CHECKBIT(val64, 0x1); | |
3108 | type = 3; | |
3109 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high, | |
3110 | &stat_info->xpak_stat.xpak_regs_stat, | |
3111 | 0x4, flag, type); | |
3112 | ||
3113 | if(CHECKBIT(val64, 0x0)) | |
3114 | stat_info->xpak_stat.alarm_laser_output_power_low++; | |
3115 | ||
3116 | /* Reading the Warning flags */ | |
3117 | addr = 0xA074; | |
3118 | val64 = 0x0; | |
3119 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3120 | ||
3121 | if(CHECKBIT(val64, 0x7)) | |
3122 | stat_info->xpak_stat.warn_transceiver_temp_high++; | |
3123 | ||
3124 | if(CHECKBIT(val64, 0x6)) | |
3125 | stat_info->xpak_stat.warn_transceiver_temp_low++; | |
3126 | ||
3127 | if(CHECKBIT(val64, 0x3)) | |
3128 | stat_info->xpak_stat.warn_laser_bias_current_high++; | |
3129 | ||
3130 | if(CHECKBIT(val64, 0x2)) | |
3131 | stat_info->xpak_stat.warn_laser_bias_current_low++; | |
3132 | ||
3133 | if(CHECKBIT(val64, 0x1)) | |
3134 | stat_info->xpak_stat.warn_laser_output_power_high++; | |
3135 | ||
3136 | if(CHECKBIT(val64, 0x0)) | |
3137 | stat_info->xpak_stat.warn_laser_output_power_low++; | |
3138 | } | |
3139 | ||
20346722 | 3140 | /** |
1da177e4 LT |
3141 | * alarm_intr_handler - Alarm Interrrupt handler |
3142 | * @nic: device private variable | |
20346722 | 3143 | * Description: If the interrupt was neither because of Rx packet or Tx |
1da177e4 | 3144 | * complete, this function is called. If the interrupt was to indicate |
20346722 K |
3145 | * a loss of link, the OSM link status handler is invoked for any other |
3146 | * alarm interrupt the block that raised the interrupt is displayed | |
1da177e4 LT |
3147 | * and a H/W reset is issued. |
3148 | * Return Value: | |
3149 | * NONE | |
3150 | */ | |
3151 | ||
3152 | static void alarm_intr_handler(struct s2io_nic *nic) | |
3153 | { | |
3154 | struct net_device *dev = (struct net_device *) nic->dev; | |
1ee6dd77 | 3155 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 3156 | register u64 val64 = 0, err_reg = 0; |
bd1034f0 AR |
3157 | u64 cnt; |
3158 | int i; | |
372cc597 SS |
3159 | if (atomic_read(&nic->card_state) == CARD_DOWN) |
3160 | return; | |
d796fdb7 LV |
3161 | if (pci_channel_offline(nic->pdev)) |
3162 | return; | |
bd1034f0 AR |
3163 | nic->mac_control.stats_info->sw_stat.ring_full_cnt = 0; |
3164 | /* Handling the XPAK counters update */ | |
3165 | if(nic->mac_control.stats_info->xpak_stat.xpak_timer_count < 72000) { | |
3166 | /* waiting for an hour */ | |
3167 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count++; | |
3168 | } else { | |
3169 | s2io_updt_xpak_counter(dev); | |
3170 | /* reset the count to zero */ | |
3171 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count = 0; | |
3172 | } | |
1da177e4 LT |
3173 | |
3174 | /* Handling link status change error Intr */ | |
a371a07d K |
3175 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
3176 | err_reg = readq(&bar0->mac_rmac_err_reg); | |
3177 | writeq(err_reg, &bar0->mac_rmac_err_reg); | |
3178 | if (err_reg & RMAC_LINK_STATE_CHANGE_INT) { | |
3179 | schedule_work(&nic->set_link_task); | |
3180 | } | |
1da177e4 LT |
3181 | } |
3182 | ||
5e25b9dd K |
3183 | /* Handling Ecc errors */ |
3184 | val64 = readq(&bar0->mc_err_reg); | |
3185 | writeq(val64, &bar0->mc_err_reg); | |
3186 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
3187 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
7ba013ac K |
3188 | nic->mac_control.stats_info->sw_stat. |
3189 | double_ecc_errs++; | |
776bd20f | 3190 | DBG_PRINT(INIT_DBG, "%s: Device indicates ", |
5e25b9dd | 3191 | dev->name); |
776bd20f | 3192 | DBG_PRINT(INIT_DBG, "double ECC error!!\n"); |
e960fc5c | 3193 | if (nic->device_type != XFRAME_II_DEVICE) { |
776bd20f | 3194 | /* Reset XframeI only if critical error */ |
3195 | if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | | |
3196 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) { | |
3197 | netif_stop_queue(dev); | |
3198 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 AR |
3199 | nic->mac_control.stats_info->sw_stat. |
3200 | soft_reset_cnt++; | |
776bd20f | 3201 | } |
e960fc5c | 3202 | } |
5e25b9dd | 3203 | } else { |
7ba013ac K |
3204 | nic->mac_control.stats_info->sw_stat. |
3205 | single_ecc_errs++; | |
5e25b9dd K |
3206 | } |
3207 | } | |
3208 | ||
1da177e4 LT |
3209 | /* In case of a serious error, the device will be Reset. */ |
3210 | val64 = readq(&bar0->serr_source); | |
3211 | if (val64 & SERR_SOURCE_ANY) { | |
bd1034f0 | 3212 | nic->mac_control.stats_info->sw_stat.serious_err_cnt++; |
1da177e4 | 3213 | DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name); |
6aa20a22 | 3214 | DBG_PRINT(ERR_DBG, "serious error %llx!!\n", |
776bd20f | 3215 | (unsigned long long)val64); |
1da177e4 LT |
3216 | netif_stop_queue(dev); |
3217 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 | 3218 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
3219 | } |
3220 | ||
3221 | /* | |
3222 | * Also as mentioned in the latest Errata sheets if the PCC_FB_ECC | |
3223 | * Error occurs, the adapter will be recycled by disabling the | |
20346722 | 3224 | * adapter enable bit and enabling it again after the device |
1da177e4 LT |
3225 | * becomes Quiescent. |
3226 | */ | |
3227 | val64 = readq(&bar0->pcc_err_reg); | |
3228 | writeq(val64, &bar0->pcc_err_reg); | |
3229 | if (val64 & PCC_FB_ECC_DB_ERR) { | |
3230 | u64 ac = readq(&bar0->adapter_control); | |
3231 | ac &= ~(ADAPTER_CNTL_EN); | |
3232 | writeq(ac, &bar0->adapter_control); | |
3233 | ac = readq(&bar0->adapter_control); | |
3234 | schedule_work(&nic->set_link_task); | |
3235 | } | |
bd1034f0 AR |
3236 | /* Check for data parity error */ |
3237 | val64 = readq(&bar0->pic_int_status); | |
3238 | if (val64 & PIC_INT_GPIO) { | |
3239 | val64 = readq(&bar0->gpio_int_reg); | |
3240 | if (val64 & GPIO_INT_REG_DP_ERR_INT) { | |
3241 | nic->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
3242 | schedule_work(&nic->rst_timer_task); | |
3243 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | /* Check for ring full counter */ | |
3248 | if (nic->device_type & XFRAME_II_DEVICE) { | |
3249 | val64 = readq(&bar0->ring_bump_counter1); | |
3250 | for (i=0; i<4; i++) { | |
3251 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3252 | cnt >>= 64 - ((i+1)*16); | |
3253 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3254 | += cnt; | |
3255 | } | |
3256 | ||
3257 | val64 = readq(&bar0->ring_bump_counter2); | |
3258 | for (i=0; i<4; i++) { | |
3259 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3260 | cnt >>= 64 - ((i+1)*16); | |
3261 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3262 | += cnt; | |
3263 | } | |
3264 | } | |
1da177e4 LT |
3265 | |
3266 | /* Other type of interrupts are not being handled now, TODO */ | |
3267 | } | |
3268 | ||
20346722 | 3269 | /** |
1da177e4 | 3270 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3271 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3272 | * s2io_nic structure. |
20346722 K |
3273 | * Description: Function that waits for a command to Write into RMAC |
3274 | * ADDR DATA registers to be completed and returns either success or | |
3275 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3276 | * Return value: |
3277 | * SUCCESS on success and FAILURE on failure. | |
3278 | */ | |
3279 | ||
9fc93a41 SS |
3280 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit, |
3281 | int bit_state) | |
1da177e4 | 3282 | { |
9fc93a41 | 3283 | int ret = FAILURE, cnt = 0, delay = 1; |
1da177e4 LT |
3284 | u64 val64; |
3285 | ||
9fc93a41 SS |
3286 | if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET)) |
3287 | return FAILURE; | |
3288 | ||
3289 | do { | |
c92ca04b | 3290 | val64 = readq(addr); |
9fc93a41 SS |
3291 | if (bit_state == S2IO_BIT_RESET) { |
3292 | if (!(val64 & busy_bit)) { | |
3293 | ret = SUCCESS; | |
3294 | break; | |
3295 | } | |
3296 | } else { | |
3297 | if (!(val64 & busy_bit)) { | |
3298 | ret = SUCCESS; | |
3299 | break; | |
3300 | } | |
1da177e4 | 3301 | } |
c92ca04b AR |
3302 | |
3303 | if(in_interrupt()) | |
9fc93a41 | 3304 | mdelay(delay); |
c92ca04b | 3305 | else |
9fc93a41 | 3306 | msleep(delay); |
c92ca04b | 3307 | |
9fc93a41 SS |
3308 | if (++cnt >= 10) |
3309 | delay = 50; | |
3310 | } while (cnt < 20); | |
1da177e4 LT |
3311 | return ret; |
3312 | } | |
19a60522 SS |
3313 | /* |
3314 | * check_pci_device_id - Checks if the device id is supported | |
3315 | * @id : device id | |
3316 | * Description: Function to check if the pci device id is supported by driver. | |
3317 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3318 | */ | |
3319 | static u16 check_pci_device_id(u16 id) | |
3320 | { | |
3321 | switch (id) { | |
3322 | case PCI_DEVICE_ID_HERC_WIN: | |
3323 | case PCI_DEVICE_ID_HERC_UNI: | |
3324 | return XFRAME_II_DEVICE; | |
3325 | case PCI_DEVICE_ID_S2IO_UNI: | |
3326 | case PCI_DEVICE_ID_S2IO_WIN: | |
3327 | return XFRAME_I_DEVICE; | |
3328 | default: | |
3329 | return PCI_ANY_ID; | |
3330 | } | |
3331 | } | |
1da177e4 | 3332 | |
20346722 K |
3333 | /** |
3334 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3335 | * @sp : private member of the device structure. |
3336 | * Description: Function to Reset the card. This function then also | |
20346722 | 3337 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3338 | * the card reset also resets the configuration space. |
3339 | * Return value: | |
3340 | * void. | |
3341 | */ | |
3342 | ||
1ee6dd77 | 3343 | static void s2io_reset(struct s2io_nic * sp) |
1da177e4 | 3344 | { |
1ee6dd77 | 3345 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3346 | u64 val64; |
5e25b9dd | 3347 | u16 subid, pci_cmd; |
19a60522 SS |
3348 | int i; |
3349 | u16 val16; | |
491976b2 SH |
3350 | unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt; |
3351 | unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt; | |
3352 | ||
19a60522 SS |
3353 | DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n", |
3354 | __FUNCTION__, sp->dev->name); | |
1da177e4 | 3355 | |
0b1f7ebe | 3356 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3357 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3358 | |
19a60522 SS |
3359 | if (sp->device_type == XFRAME_II_DEVICE) { |
3360 | int ret; | |
3361 | ret = pci_set_power_state(sp->pdev, 3); | |
3362 | if (!ret) | |
3363 | ret = pci_set_power_state(sp->pdev, 0); | |
3364 | else { | |
3365 | DBG_PRINT(ERR_DBG,"%s PME based SW_Reset failed!\n", | |
3366 | __FUNCTION__); | |
3367 | goto old_way; | |
3368 | } | |
3369 | msleep(20); | |
3370 | goto new_way; | |
3371 | } | |
3372 | old_way: | |
1da177e4 LT |
3373 | val64 = SW_RESET_ALL; |
3374 | writeq(val64, &bar0->sw_reset); | |
19a60522 | 3375 | new_way: |
c92ca04b AR |
3376 | if (strstr(sp->product_name, "CX4")) { |
3377 | msleep(750); | |
3378 | } | |
19a60522 SS |
3379 | msleep(250); |
3380 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3381 | |
19a60522 SS |
3382 | /* Restore the PCI state saved during initialization. */ |
3383 | pci_restore_state(sp->pdev); | |
3384 | pci_read_config_word(sp->pdev, 0x2, &val16); | |
3385 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3386 | break; | |
3387 | msleep(200); | |
3388 | } | |
1da177e4 | 3389 | |
19a60522 SS |
3390 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) { |
3391 | DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__); | |
3392 | } | |
3393 | ||
3394 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3395 | ||
3396 | s2io_init_pci(sp); | |
1da177e4 | 3397 | |
20346722 K |
3398 | /* Set swapper to enable I/O register access */ |
3399 | s2io_set_swapper(sp); | |
3400 | ||
cc6e7c44 RA |
3401 | /* Restore the MSIX table entries from local variables */ |
3402 | restore_xmsi_data(sp); | |
3403 | ||
5e25b9dd | 3404 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3405 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3406 | /* Clear "detected parity error" bit */ |
303bcb4b | 3407 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3408 | |
303bcb4b K |
3409 | /* Clearing PCIX Ecc status register */ |
3410 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3411 | |
303bcb4b K |
3412 | /* Clearing PCI_STATUS error reflected here */ |
3413 | writeq(BIT(62), &bar0->txpic_int_reg); | |
3414 | } | |
5e25b9dd | 3415 | |
20346722 K |
3416 | /* Reset device statistics maintained by OS */ |
3417 | memset(&sp->stats, 0, sizeof (struct net_device_stats)); | |
491976b2 SH |
3418 | |
3419 | up_cnt = sp->mac_control.stats_info->sw_stat.link_up_cnt; | |
3420 | down_cnt = sp->mac_control.stats_info->sw_stat.link_down_cnt; | |
3421 | up_time = sp->mac_control.stats_info->sw_stat.link_up_time; | |
3422 | down_time = sp->mac_control.stats_info->sw_stat.link_down_time; | |
363dc367 | 3423 | reset_cnt = sp->mac_control.stats_info->sw_stat.soft_reset_cnt; |
491976b2 SH |
3424 | mem_alloc_cnt = sp->mac_control.stats_info->sw_stat.mem_allocated; |
3425 | mem_free_cnt = sp->mac_control.stats_info->sw_stat.mem_freed; | |
3426 | watchdog_cnt = sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt; | |
3427 | /* save link up/down time/cnt, reset/memory/watchdog cnt */ | |
363dc367 | 3428 | memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block)); |
491976b2 SH |
3429 | /* restore link up/down time/cnt, reset/memory/watchdog cnt */ |
3430 | sp->mac_control.stats_info->sw_stat.link_up_cnt = up_cnt; | |
3431 | sp->mac_control.stats_info->sw_stat.link_down_cnt = down_cnt; | |
3432 | sp->mac_control.stats_info->sw_stat.link_up_time = up_time; | |
3433 | sp->mac_control.stats_info->sw_stat.link_down_time = down_time; | |
363dc367 | 3434 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt = reset_cnt; |
491976b2 SH |
3435 | sp->mac_control.stats_info->sw_stat.mem_allocated = mem_alloc_cnt; |
3436 | sp->mac_control.stats_info->sw_stat.mem_freed = mem_free_cnt; | |
3437 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt = watchdog_cnt; | |
20346722 | 3438 | |
1da177e4 LT |
3439 | /* SXE-002: Configure link and activity LED to turn it off */ |
3440 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
3441 | if (((subid & 0xFF) >= 0x07) && |
3442 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3443 | val64 = readq(&bar0->gpio_control); |
3444 | val64 |= 0x0000800000000000ULL; | |
3445 | writeq(val64, &bar0->gpio_control); | |
3446 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3447 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3448 | } |
3449 | ||
541ae68f K |
3450 | /* |
3451 | * Clear spurious ECC interrupts that would have occured on | |
3452 | * XFRAME II cards after reset. | |
3453 | */ | |
3454 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3455 | val64 = readq(&bar0->pcc_err_reg); | |
3456 | writeq(val64, &bar0->pcc_err_reg); | |
3457 | } | |
3458 | ||
d8d70caf SS |
3459 | /* restore the previously assigned mac address */ |
3460 | s2io_set_mac_addr(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr); | |
3461 | ||
1da177e4 LT |
3462 | sp->device_enabled_once = FALSE; |
3463 | } | |
3464 | ||
3465 | /** | |
20346722 K |
3466 | * s2io_set_swapper - to set the swapper controle on the card |
3467 | * @sp : private member of the device structure, | |
1da177e4 | 3468 | * pointer to the s2io_nic structure. |
20346722 | 3469 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3470 | * correctly depending on the 'endianness' of the system. |
3471 | * Return value: | |
3472 | * SUCCESS on success and FAILURE on failure. | |
3473 | */ | |
3474 | ||
1ee6dd77 | 3475 | static int s2io_set_swapper(struct s2io_nic * sp) |
1da177e4 LT |
3476 | { |
3477 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3478 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3479 | u64 val64, valt, valr; |
3480 | ||
20346722 | 3481 | /* |
1da177e4 LT |
3482 | * Set proper endian settings and verify the same by reading |
3483 | * the PIF Feed-back register. | |
3484 | */ | |
3485 | ||
3486 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3487 | if (val64 != 0x0123456789ABCDEFULL) { | |
3488 | int i = 0; | |
3489 | u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3490 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3491 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3492 | 0}; /* FE=0, SE=0 */ | |
3493 | ||
3494 | while(i<4) { | |
3495 | writeq(value[i], &bar0->swapper_ctrl); | |
3496 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3497 | if (val64 == 0x0123456789ABCDEFULL) | |
3498 | break; | |
3499 | i++; | |
3500 | } | |
3501 | if (i == 4) { | |
3502 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3503 | dev->name); | |
3504 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3505 | (unsigned long long) val64); | |
3506 | return FAILURE; | |
3507 | } | |
3508 | valr = value[i]; | |
3509 | } else { | |
3510 | valr = readq(&bar0->swapper_ctrl); | |
3511 | } | |
3512 | ||
3513 | valt = 0x0123456789ABCDEFULL; | |
3514 | writeq(valt, &bar0->xmsi_address); | |
3515 | val64 = readq(&bar0->xmsi_address); | |
3516 | ||
3517 | if(val64 != valt) { | |
3518 | int i = 0; | |
3519 | u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3520 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3521 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3522 | 0}; /* FE=0, SE=0 */ | |
3523 | ||
3524 | while(i<4) { | |
3525 | writeq((value[i] | valr), &bar0->swapper_ctrl); | |
3526 | writeq(valt, &bar0->xmsi_address); | |
3527 | val64 = readq(&bar0->xmsi_address); | |
3528 | if(val64 == valt) | |
3529 | break; | |
3530 | i++; | |
3531 | } | |
3532 | if(i == 4) { | |
20346722 | 3533 | unsigned long long x = val64; |
1da177e4 | 3534 | DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr "); |
20346722 | 3535 | DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x); |
1da177e4 LT |
3536 | return FAILURE; |
3537 | } | |
3538 | } | |
3539 | val64 = readq(&bar0->swapper_ctrl); | |
3540 | val64 &= 0xFFFF000000000000ULL; | |
3541 | ||
3542 | #ifdef __BIG_ENDIAN | |
20346722 K |
3543 | /* |
3544 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3545 | * big endian driver need not set anything. |
3546 | */ | |
3547 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3548 | SWAPPER_CTRL_TXP_SE | | |
3549 | SWAPPER_CTRL_TXD_R_FE | | |
3550 | SWAPPER_CTRL_TXD_W_FE | | |
3551 | SWAPPER_CTRL_TXF_R_FE | | |
3552 | SWAPPER_CTRL_RXD_R_FE | | |
3553 | SWAPPER_CTRL_RXD_W_FE | | |
3554 | SWAPPER_CTRL_RXF_W_FE | | |
3555 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3556 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
92383340 | 3557 | if (sp->intr_type == INTA) |
cc6e7c44 | 3558 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3559 | writeq(val64, &bar0->swapper_ctrl); |
3560 | #else | |
20346722 | 3561 | /* |
1da177e4 | 3562 | * Initially we enable all bits to make it accessible by the |
20346722 | 3563 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3564 | * we want to set. |
3565 | */ | |
3566 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3567 | SWAPPER_CTRL_TXP_SE | | |
3568 | SWAPPER_CTRL_TXD_R_FE | | |
3569 | SWAPPER_CTRL_TXD_R_SE | | |
3570 | SWAPPER_CTRL_TXD_W_FE | | |
3571 | SWAPPER_CTRL_TXD_W_SE | | |
3572 | SWAPPER_CTRL_TXF_R_FE | | |
3573 | SWAPPER_CTRL_RXD_R_FE | | |
3574 | SWAPPER_CTRL_RXD_R_SE | | |
3575 | SWAPPER_CTRL_RXD_W_FE | | |
3576 | SWAPPER_CTRL_RXD_W_SE | | |
3577 | SWAPPER_CTRL_RXF_W_FE | | |
3578 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3579 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
cc6e7c44 RA |
3580 | if (sp->intr_type == INTA) |
3581 | val64 |= SWAPPER_CTRL_XMSI_SE; | |
1da177e4 LT |
3582 | writeq(val64, &bar0->swapper_ctrl); |
3583 | #endif | |
3584 | val64 = readq(&bar0->swapper_ctrl); | |
3585 | ||
20346722 K |
3586 | /* |
3587 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3588 | * feedback register. |
3589 | */ | |
3590 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3591 | if (val64 != 0x0123456789ABCDEFULL) { | |
3592 | /* Endian settings are incorrect, calls for another dekko. */ | |
3593 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3594 | dev->name); | |
3595 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3596 | (unsigned long long) val64); | |
3597 | return FAILURE; | |
3598 | } | |
3599 | ||
3600 | return SUCCESS; | |
3601 | } | |
3602 | ||
1ee6dd77 | 3603 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3604 | { |
1ee6dd77 | 3605 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3606 | u64 val64; |
3607 | int ret = 0, cnt = 0; | |
3608 | ||
3609 | do { | |
3610 | val64 = readq(&bar0->xmsi_access); | |
3611 | if (!(val64 & BIT(15))) | |
3612 | break; | |
3613 | mdelay(1); | |
3614 | cnt++; | |
3615 | } while(cnt < 5); | |
3616 | if (cnt == 5) { | |
3617 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3618 | ret = 1; | |
3619 | } | |
3620 | ||
3621 | return ret; | |
3622 | } | |
3623 | ||
1ee6dd77 | 3624 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3625 | { |
1ee6dd77 | 3626 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3627 | u64 val64; |
3628 | int i; | |
3629 | ||
75c30b13 | 3630 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3631 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3632 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
3633 | val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6)); | |
3634 | writeq(val64, &bar0->xmsi_access); | |
3635 | if (wait_for_msix_trans(nic, i)) { | |
3636 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3637 | continue; | |
3638 | } | |
3639 | } | |
3640 | } | |
3641 | ||
1ee6dd77 | 3642 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3643 | { |
1ee6dd77 | 3644 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3645 | u64 val64, addr, data; |
3646 | int i; | |
3647 | ||
3648 | /* Store and display */ | |
75c30b13 | 3649 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3650 | val64 = (BIT(15) | vBIT(i, 26, 6)); |
3651 | writeq(val64, &bar0->xmsi_access); | |
3652 | if (wait_for_msix_trans(nic, i)) { | |
3653 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3654 | continue; | |
3655 | } | |
3656 | addr = readq(&bar0->xmsi_address); | |
3657 | data = readq(&bar0->xmsi_data); | |
3658 | if (addr && data) { | |
3659 | nic->msix_info[i].addr = addr; | |
3660 | nic->msix_info[i].data = data; | |
3661 | } | |
3662 | } | |
3663 | } | |
3664 | ||
1ee6dd77 | 3665 | int s2io_enable_msi(struct s2io_nic *nic) |
cc6e7c44 | 3666 | { |
1ee6dd77 | 3667 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3668 | u16 msi_ctrl, msg_val; |
3669 | struct config_param *config = &nic->config; | |
3670 | struct net_device *dev = nic->dev; | |
3671 | u64 val64, tx_mat, rx_mat; | |
3672 | int i, err; | |
3673 | ||
3674 | val64 = readq(&bar0->pic_control); | |
3675 | val64 &= ~BIT(1); | |
3676 | writeq(val64, &bar0->pic_control); | |
3677 | ||
3678 | err = pci_enable_msi(nic->pdev); | |
3679 | if (err) { | |
3680 | DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n", | |
3681 | nic->dev->name); | |
3682 | return err; | |
3683 | } | |
3684 | ||
3685 | /* | |
3686 | * Enable MSI and use MSI-1 in stead of the standard MSI-0 | |
3687 | * for interrupt handling. | |
3688 | */ | |
3689 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3690 | msg_val ^= 0x1; | |
3691 | pci_write_config_word(nic->pdev, 0x4c, msg_val); | |
3692 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3693 | ||
3694 | pci_read_config_word(nic->pdev, 0x42, &msi_ctrl); | |
3695 | msi_ctrl |= 0x10; | |
3696 | pci_write_config_word(nic->pdev, 0x42, msi_ctrl); | |
3697 | ||
3698 | /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */ | |
3699 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3700 | for (i=0; i<config->tx_fifo_num; i++) { | |
3701 | tx_mat |= TX_MAT_SET(i, 1); | |
3702 | } | |
3703 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3704 | ||
3705 | rx_mat = readq(&bar0->rx_mat); | |
3706 | for (i=0; i<config->rx_ring_num; i++) { | |
3707 | rx_mat |= RX_MAT_SET(i, 1); | |
3708 | } | |
3709 | writeq(rx_mat, &bar0->rx_mat); | |
3710 | ||
3711 | dev->irq = nic->pdev->irq; | |
3712 | return 0; | |
3713 | } | |
3714 | ||
1ee6dd77 | 3715 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3716 | { |
1ee6dd77 | 3717 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3718 | u64 tx_mat, rx_mat; |
3719 | u16 msi_control; /* Temp variable */ | |
3720 | int ret, i, j, msix_indx = 1; | |
3721 | ||
3722 | nic->entries = kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry), | |
3723 | GFP_KERNEL); | |
3724 | if (nic->entries == NULL) { | |
491976b2 SH |
3725 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", \ |
3726 | __FUNCTION__); | |
c53d4945 | 3727 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 RA |
3728 | return -ENOMEM; |
3729 | } | |
491976b2 SH |
3730 | nic->mac_control.stats_info->sw_stat.mem_allocated |
3731 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3732 | memset(nic->entries, 0,MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 RA |
3733 | |
3734 | nic->s2io_entries = | |
3735 | kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry), | |
3736 | GFP_KERNEL); | |
3737 | if (nic->s2io_entries == NULL) { | |
491976b2 SH |
3738 | DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n", |
3739 | __FUNCTION__); | |
c53d4945 | 3740 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; |
cc6e7c44 | 3741 | kfree(nic->entries); |
491976b2 SH |
3742 | nic->mac_control.stats_info->sw_stat.mem_freed |
3743 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 RA |
3744 | return -ENOMEM; |
3745 | } | |
491976b2 SH |
3746 | nic->mac_control.stats_info->sw_stat.mem_allocated |
3747 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
cc6e7c44 RA |
3748 | memset(nic->s2io_entries, 0, |
3749 | MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3750 | ||
3751 | for (i=0; i< MAX_REQUESTED_MSI_X; i++) { | |
3752 | nic->entries[i].entry = i; | |
3753 | nic->s2io_entries[i].entry = i; | |
3754 | nic->s2io_entries[i].arg = NULL; | |
3755 | nic->s2io_entries[i].in_use = 0; | |
3756 | } | |
3757 | ||
3758 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3759 | for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) { | |
3760 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3761 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i]; | |
3762 | nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE; | |
3763 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3764 | } | |
3765 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3766 | ||
3767 | if (!nic->config.bimodal) { | |
3768 | rx_mat = readq(&bar0->rx_mat); | |
3769 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3770 | rx_mat |= RX_MAT_SET(j, msix_indx); | |
491976b2 SH |
3771 | nic->s2io_entries[msix_indx].arg |
3772 | = &nic->mac_control.rings[j]; | |
cc6e7c44 RA |
3773 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; |
3774 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3775 | } | |
3776 | writeq(rx_mat, &bar0->rx_mat); | |
3777 | } else { | |
3778 | tx_mat = readq(&bar0->tx_mat0_n[7]); | |
3779 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3780 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
491976b2 SH |
3781 | nic->s2io_entries[msix_indx].arg |
3782 | = &nic->mac_control.rings[j]; | |
cc6e7c44 RA |
3783 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; |
3784 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3785 | } | |
3786 | writeq(tx_mat, &bar0->tx_mat0_n[7]); | |
3787 | } | |
3788 | ||
c92ca04b | 3789 | nic->avail_msix_vectors = 0; |
cc6e7c44 | 3790 | ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X); |
c92ca04b AR |
3791 | /* We fail init if error or we get less vectors than min required */ |
3792 | if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) { | |
3793 | nic->avail_msix_vectors = ret; | |
3794 | ret = pci_enable_msix(nic->pdev, nic->entries, ret); | |
3795 | } | |
cc6e7c44 RA |
3796 | if (ret) { |
3797 | DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name); | |
3798 | kfree(nic->entries); | |
491976b2 SH |
3799 | nic->mac_control.stats_info->sw_stat.mem_freed |
3800 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
cc6e7c44 | 3801 | kfree(nic->s2io_entries); |
491976b2 SH |
3802 | nic->mac_control.stats_info->sw_stat.mem_freed |
3803 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
cc6e7c44 RA |
3804 | nic->entries = NULL; |
3805 | nic->s2io_entries = NULL; | |
c92ca04b | 3806 | nic->avail_msix_vectors = 0; |
cc6e7c44 RA |
3807 | return -ENOMEM; |
3808 | } | |
c92ca04b AR |
3809 | if (!nic->avail_msix_vectors) |
3810 | nic->avail_msix_vectors = MAX_REQUESTED_MSI_X; | |
cc6e7c44 RA |
3811 | |
3812 | /* | |
3813 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3814 | * in the herc NIC. (Temp change, needs to be removed later) | |
3815 | */ | |
3816 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3817 | msi_control |= 0x1; /* Enable MSI */ | |
3818 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3819 | ||
3820 | return 0; | |
3821 | } | |
3822 | ||
1da177e4 LT |
3823 | /* ********************************************************* * |
3824 | * Functions defined below concern the OS part of the driver * | |
3825 | * ********************************************************* */ | |
3826 | ||
20346722 | 3827 | /** |
1da177e4 LT |
3828 | * s2io_open - open entry point of the driver |
3829 | * @dev : pointer to the device structure. | |
3830 | * Description: | |
3831 | * This function is the open entry point of the driver. It mainly calls a | |
3832 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3833 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3834 | * Return value: |
3835 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3836 | * file on failure. | |
3837 | */ | |
3838 | ||
ac1f60db | 3839 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3840 | { |
1ee6dd77 | 3841 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3842 | int err = 0; |
3843 | ||
20346722 K |
3844 | /* |
3845 | * Make sure you have link off by default every time | |
1da177e4 LT |
3846 | * Nic is initialized |
3847 | */ | |
3848 | netif_carrier_off(dev); | |
0b1f7ebe | 3849 | sp->last_link_state = 0; |
1da177e4 LT |
3850 | |
3851 | /* Initialize H/W and enable interrupts */ | |
c92ca04b AR |
3852 | err = s2io_card_up(sp); |
3853 | if (err) { | |
1da177e4 LT |
3854 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3855 | dev->name); | |
e6a8fee2 | 3856 | goto hw_init_failed; |
1da177e4 LT |
3857 | } |
3858 | ||
3859 | if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) { | |
3860 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); | |
e6a8fee2 | 3861 | s2io_card_down(sp); |
20346722 | 3862 | err = -ENODEV; |
e6a8fee2 | 3863 | goto hw_init_failed; |
1da177e4 LT |
3864 | } |
3865 | ||
3866 | netif_start_queue(dev); | |
3867 | return 0; | |
20346722 | 3868 | |
20346722 | 3869 | hw_init_failed: |
cc6e7c44 | 3870 | if (sp->intr_type == MSI_X) { |
491976b2 | 3871 | if (sp->entries) { |
cc6e7c44 | 3872 | kfree(sp->entries); |
491976b2 SH |
3873 | sp->mac_control.stats_info->sw_stat.mem_freed |
3874 | += (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3875 | } | |
3876 | if (sp->s2io_entries) { | |
cc6e7c44 | 3877 | kfree(sp->s2io_entries); |
491976b2 SH |
3878 | sp->mac_control.stats_info->sw_stat.mem_freed |
3879 | += (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3880 | } | |
cc6e7c44 | 3881 | } |
20346722 | 3882 | return err; |
1da177e4 LT |
3883 | } |
3884 | ||
3885 | /** | |
3886 | * s2io_close -close entry point of the driver | |
3887 | * @dev : device pointer. | |
3888 | * Description: | |
3889 | * This is the stop entry point of the driver. It needs to undo exactly | |
3890 | * whatever was done by the open entry point,thus it's usually referred to | |
3891 | * as the close function.Among other things this function mainly stops the | |
3892 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3893 | * Return value: | |
3894 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3895 | * file on failure. | |
3896 | */ | |
3897 | ||
ac1f60db | 3898 | static int s2io_close(struct net_device *dev) |
1da177e4 | 3899 | { |
1ee6dd77 | 3900 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 3901 | |
1da177e4 LT |
3902 | netif_stop_queue(dev); |
3903 | /* Reset card, kill tasklet and free Tx and Rx buffers. */ | |
e6a8fee2 | 3904 | s2io_card_down(sp); |
cc6e7c44 | 3905 | |
1da177e4 LT |
3906 | return 0; |
3907 | } | |
3908 | ||
3909 | /** | |
3910 | * s2io_xmit - Tx entry point of te driver | |
3911 | * @skb : the socket buffer containing the Tx data. | |
3912 | * @dev : device pointer. | |
3913 | * Description : | |
3914 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
3915 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
3916 | * NOTE: when device cant queue the pkt,just the trans_start variable will | |
3917 | * not be upadted. | |
3918 | * Return value: | |
3919 | * 0 on success & 1 on failure. | |
3920 | */ | |
3921 | ||
ac1f60db | 3922 | static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 3923 | { |
1ee6dd77 | 3924 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3925 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
3926 | register u64 val64; | |
1ee6dd77 RB |
3927 | struct TxD *txdp; |
3928 | struct TxFIFO_element __iomem *tx_fifo; | |
1da177e4 | 3929 | unsigned long flags; |
be3a6b02 K |
3930 | u16 vlan_tag = 0; |
3931 | int vlan_priority = 0; | |
1ee6dd77 | 3932 | struct mac_info *mac_control; |
1da177e4 | 3933 | struct config_param *config; |
75c30b13 | 3934 | int offload_type; |
1da177e4 LT |
3935 | |
3936 | mac_control = &sp->mac_control; | |
3937 | config = &sp->config; | |
3938 | ||
20346722 | 3939 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
491976b2 SH |
3940 | |
3941 | if (unlikely(skb->len <= 0)) { | |
3942 | DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name); | |
3943 | dev_kfree_skb_any(skb); | |
3944 | return 0; | |
3945 | } | |
3946 | ||
1da177e4 | 3947 | spin_lock_irqsave(&sp->tx_lock, flags); |
1da177e4 | 3948 | if (atomic_read(&sp->card_state) == CARD_DOWN) { |
20346722 | 3949 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 LT |
3950 | dev->name); |
3951 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
20346722 K |
3952 | dev_kfree_skb(skb); |
3953 | return 0; | |
1da177e4 LT |
3954 | } |
3955 | ||
3956 | queue = 0; | |
be3a6b02 K |
3957 | /* Get Fifo number to Transmit based on vlan priority */ |
3958 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { | |
3959 | vlan_tag = vlan_tx_tag_get(skb); | |
3960 | vlan_priority = vlan_tag >> 13; | |
3961 | queue = config->fifo_mapping[vlan_priority]; | |
3962 | } | |
3963 | ||
20346722 K |
3964 | put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset; |
3965 | get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset; | |
1ee6dd77 | 3966 | txdp = (struct TxD *) mac_control->fifos[queue].list_info[put_off]. |
20346722 K |
3967 | list_virt_addr; |
3968 | ||
3969 | queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1; | |
1da177e4 | 3970 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 AR |
3971 | if (txdp->Host_Control || |
3972 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { | |
776bd20f | 3973 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
1da177e4 LT |
3974 | netif_stop_queue(dev); |
3975 | dev_kfree_skb(skb); | |
3976 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3977 | return 0; | |
3978 | } | |
0b1f7ebe | 3979 | |
75c30b13 | 3980 | offload_type = s2io_offload_type(skb); |
75c30b13 | 3981 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 3982 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 3983 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 3984 | } |
84fa7933 | 3985 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
3986 | txdp->Control_2 |= |
3987 | (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN | | |
3988 | TXD_TX_CKO_UDP_EN); | |
3989 | } | |
fed5eccd AR |
3990 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
3991 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
1da177e4 | 3992 | txdp->Control_2 |= config->tx_intr_type; |
d8892c6e | 3993 | |
be3a6b02 K |
3994 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { |
3995 | txdp->Control_2 |= TXD_VLAN_ENABLE; | |
3996 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
3997 | } | |
3998 | ||
fed5eccd | 3999 | frg_len = skb->len - skb->data_len; |
75c30b13 | 4000 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
4001 | int ufo_size; |
4002 | ||
75c30b13 | 4003 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
4004 | ufo_size &= ~7; |
4005 | txdp->Control_1 |= TXD_UFO_EN; | |
4006 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
4007 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
4008 | #ifdef __BIG_ENDIAN | |
4009 | sp->ufo_in_band_v[put_off] = | |
4010 | (u64)skb_shinfo(skb)->ip6_frag_id; | |
4011 | #else | |
4012 | sp->ufo_in_band_v[put_off] = | |
4013 | (u64)skb_shinfo(skb)->ip6_frag_id << 32; | |
4014 | #endif | |
4015 | txdp->Host_Control = (unsigned long)sp->ufo_in_band_v; | |
4016 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, | |
4017 | sp->ufo_in_band_v, | |
4018 | sizeof(u64), PCI_DMA_TODEVICE); | |
4019 | txdp++; | |
fed5eccd | 4020 | } |
1da177e4 | 4021 | |
fed5eccd AR |
4022 | txdp->Buffer_Pointer = pci_map_single |
4023 | (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); | |
4024 | txdp->Host_Control = (unsigned long) skb; | |
4025 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); | |
75c30b13 | 4026 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4027 | txdp->Control_1 |= TXD_UFO_EN; |
4028 | ||
4029 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
4030 | /* For fragmented SKB. */ |
4031 | for (i = 0; i < frg_cnt; i++) { | |
4032 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe K |
4033 | /* A '0' length fragment will be ignored */ |
4034 | if (!frag->size) | |
4035 | continue; | |
1da177e4 LT |
4036 | txdp++; |
4037 | txdp->Buffer_Pointer = (u64) pci_map_page | |
4038 | (sp->pdev, frag->page, frag->page_offset, | |
4039 | frag->size, PCI_DMA_TODEVICE); | |
efd51b5c | 4040 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 4041 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 4042 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
4043 | } |
4044 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
4045 | ||
75c30b13 | 4046 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
4047 | frg_cnt++; /* as Txd0 was used for inband header */ |
4048 | ||
1da177e4 | 4049 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
20346722 | 4050 | val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr; |
1da177e4 LT |
4051 | writeq(val64, &tx_fifo->TxDL_Pointer); |
4052 | ||
4053 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
4054 | TX_FIFO_LAST_LIST); | |
75c30b13 | 4055 | if (offload_type) |
fed5eccd | 4056 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 4057 | |
1da177e4 LT |
4058 | writeq(val64, &tx_fifo->List_Control); |
4059 | ||
303bcb4b K |
4060 | mmiowb(); |
4061 | ||
1da177e4 | 4062 | put_off++; |
863c11a9 AR |
4063 | if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1) |
4064 | put_off = 0; | |
20346722 | 4065 | mac_control->fifos[queue].tx_curr_put_info.offset = put_off; |
1da177e4 LT |
4066 | |
4067 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 4068 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
bd1034f0 | 4069 | sp->mac_control.stats_info->sw_stat.fifo_full_cnt++; |
1da177e4 LT |
4070 | DBG_PRINT(TX_DBG, |
4071 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
4072 | put_off, get_off); | |
4073 | netif_stop_queue(dev); | |
4074 | } | |
491976b2 | 4075 | mac_control->stats_info->sw_stat.mem_allocated += skb->truesize; |
1da177e4 LT |
4076 | dev->trans_start = jiffies; |
4077 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
4078 | ||
4079 | return 0; | |
4080 | } | |
4081 | ||
25fff88e K |
4082 | static void |
4083 | s2io_alarm_handle(unsigned long data) | |
4084 | { | |
1ee6dd77 | 4085 | struct s2io_nic *sp = (struct s2io_nic *)data; |
25fff88e K |
4086 | |
4087 | alarm_intr_handler(sp); | |
4088 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); | |
4089 | } | |
4090 | ||
1ee6dd77 | 4091 | static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) |
75c30b13 AR |
4092 | { |
4093 | int rxb_size, level; | |
4094 | ||
4095 | if (!sp->lro) { | |
4096 | rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); | |
4097 | level = rx_buffer_level(sp, rxb_size, rng_n); | |
4098 | ||
4099 | if ((level == PANIC) && (!TASKLET_IN_USE)) { | |
4100 | int ret; | |
4101 | DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); | |
4102 | DBG_PRINT(INTR_DBG, "PANIC levels\n"); | |
4103 | if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { | |
0c61ed5f | 4104 | DBG_PRINT(INFO_DBG, "Out of memory in %s", |
75c30b13 AR |
4105 | __FUNCTION__); |
4106 | clear_bit(0, (&sp->tasklet_status)); | |
4107 | return -1; | |
4108 | } | |
4109 | clear_bit(0, (&sp->tasklet_status)); | |
4110 | } else if (level == LOW) | |
4111 | tasklet_schedule(&sp->task); | |
4112 | ||
4113 | } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { | |
0c61ed5f RV |
4114 | DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name); |
4115 | DBG_PRINT(INFO_DBG, " in Rx Intr!!\n"); | |
75c30b13 AR |
4116 | } |
4117 | return 0; | |
4118 | } | |
4119 | ||
7d12e780 | 4120 | static irqreturn_t s2io_msi_handle(int irq, void *dev_id) |
cc6e7c44 RA |
4121 | { |
4122 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 | 4123 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 4124 | int i; |
1ee6dd77 | 4125 | struct mac_info *mac_control; |
cc6e7c44 RA |
4126 | struct config_param *config; |
4127 | ||
4128 | atomic_inc(&sp->isr_cnt); | |
4129 | mac_control = &sp->mac_control; | |
4130 | config = &sp->config; | |
4131 | DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__); | |
4132 | ||
4133 | /* If Intr is because of Rx Traffic */ | |
4134 | for (i = 0; i < config->rx_ring_num; i++) | |
4135 | rx_intr_handler(&mac_control->rings[i]); | |
4136 | ||
4137 | /* If Intr is because of Tx Traffic */ | |
4138 | for (i = 0; i < config->tx_fifo_num; i++) | |
4139 | tx_intr_handler(&mac_control->fifos[i]); | |
4140 | ||
4141 | /* | |
4142 | * If the Rx buffer count is below the panic threshold then | |
4143 | * reallocate the buffers from the interrupt handler itself, | |
4144 | * else schedule a tasklet to reallocate the buffers. | |
4145 | */ | |
75c30b13 AR |
4146 | for (i = 0; i < config->rx_ring_num; i++) |
4147 | s2io_chk_rx_buffers(sp, i); | |
cc6e7c44 RA |
4148 | |
4149 | atomic_dec(&sp->isr_cnt); | |
4150 | return IRQ_HANDLED; | |
4151 | } | |
4152 | ||
7d12e780 | 4153 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4154 | { |
1ee6dd77 RB |
4155 | struct ring_info *ring = (struct ring_info *)dev_id; |
4156 | struct s2io_nic *sp = ring->nic; | |
cc6e7c44 RA |
4157 | |
4158 | atomic_inc(&sp->isr_cnt); | |
cc6e7c44 | 4159 | |
75c30b13 AR |
4160 | rx_intr_handler(ring); |
4161 | s2io_chk_rx_buffers(sp, ring->ring_no); | |
7d3d0439 | 4162 | |
cc6e7c44 | 4163 | atomic_dec(&sp->isr_cnt); |
cc6e7c44 RA |
4164 | return IRQ_HANDLED; |
4165 | } | |
4166 | ||
7d12e780 | 4167 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4168 | { |
1ee6dd77 RB |
4169 | struct fifo_info *fifo = (struct fifo_info *)dev_id; |
4170 | struct s2io_nic *sp = fifo->nic; | |
cc6e7c44 RA |
4171 | |
4172 | atomic_inc(&sp->isr_cnt); | |
4173 | tx_intr_handler(fifo); | |
4174 | atomic_dec(&sp->isr_cnt); | |
4175 | return IRQ_HANDLED; | |
4176 | } | |
1ee6dd77 | 4177 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4178 | { |
1ee6dd77 | 4179 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d K |
4180 | u64 val64; |
4181 | ||
4182 | val64 = readq(&bar0->pic_int_status); | |
4183 | if (val64 & PIC_INT_GPIO) { | |
4184 | val64 = readq(&bar0->gpio_int_reg); | |
4185 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4186 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4187 | /* |
4188 | * This is unstable state so clear both up/down | |
4189 | * interrupt and adapter to re-evaluate the link state. | |
4190 | */ | |
a371a07d K |
4191 | val64 |= GPIO_INT_REG_LINK_DOWN; |
4192 | val64 |= GPIO_INT_REG_LINK_UP; | |
4193 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4194 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4195 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4196 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4197 | writeq(val64, &bar0->gpio_int_mask); |
a371a07d | 4198 | } |
c92ca04b AR |
4199 | else if (val64 & GPIO_INT_REG_LINK_UP) { |
4200 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 4201 | /* Enable Adapter */ |
19a60522 SS |
4202 | val64 = readq(&bar0->adapter_control); |
4203 | val64 |= ADAPTER_CNTL_EN; | |
4204 | writeq(val64, &bar0->adapter_control); | |
4205 | val64 |= ADAPTER_LED_ON; | |
4206 | writeq(val64, &bar0->adapter_control); | |
4207 | if (!sp->device_enabled_once) | |
4208 | sp->device_enabled_once = 1; | |
c92ca04b | 4209 | |
19a60522 SS |
4210 | s2io_link(sp, LINK_UP); |
4211 | /* | |
4212 | * unmask link down interrupt and mask link-up | |
4213 | * intr | |
4214 | */ | |
4215 | val64 = readq(&bar0->gpio_int_mask); | |
4216 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4217 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4218 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4219 | |
c92ca04b AR |
4220 | }else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
4221 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
4222 | s2io_link(sp, LINK_DOWN); |
4223 | /* Link is down so unmaks link up interrupt */ | |
4224 | val64 = readq(&bar0->gpio_int_mask); | |
4225 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4226 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4227 | writeq(val64, &bar0->gpio_int_mask); | |
ac1f90d6 SS |
4228 | |
4229 | /* turn off LED */ | |
4230 | val64 = readq(&bar0->adapter_control); | |
4231 | val64 = val64 &(~ADAPTER_LED_ON); | |
4232 | writeq(val64, &bar0->adapter_control); | |
a371a07d K |
4233 | } |
4234 | } | |
c92ca04b | 4235 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d K |
4236 | } |
4237 | ||
1da177e4 LT |
4238 | /** |
4239 | * s2io_isr - ISR handler of the device . | |
4240 | * @irq: the irq of the device. | |
4241 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 K |
4242 | * Description: This function is the ISR handler of the device. It |
4243 | * identifies the reason for the interrupt and calls the relevant | |
4244 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4245 | * recv buffers, if their numbers are below the panic value which is |
4246 | * presently set to 25% of the original number of rcv buffers allocated. | |
4247 | * Return value: | |
20346722 | 4248 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4249 | * IRQ_NONE: will be returned if interrupt is not from our device |
4250 | */ | |
7d12e780 | 4251 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 LT |
4252 | { |
4253 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 RB |
4254 | struct s2io_nic *sp = dev->priv; |
4255 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
20346722 | 4256 | int i; |
19a60522 | 4257 | u64 reason = 0; |
1ee6dd77 | 4258 | struct mac_info *mac_control; |
1da177e4 LT |
4259 | struct config_param *config; |
4260 | ||
d796fdb7 LV |
4261 | /* Pretend we handled any irq's from a disconnected card */ |
4262 | if (pci_channel_offline(sp->pdev)) | |
4263 | return IRQ_NONE; | |
4264 | ||
7ba013ac | 4265 | atomic_inc(&sp->isr_cnt); |
1da177e4 LT |
4266 | mac_control = &sp->mac_control; |
4267 | config = &sp->config; | |
4268 | ||
20346722 | 4269 | /* |
1da177e4 LT |
4270 | * Identify the cause for interrupt and call the appropriate |
4271 | * interrupt handler. Causes for the interrupt could be; | |
4272 | * 1. Rx of packet. | |
4273 | * 2. Tx complete. | |
4274 | * 3. Link down. | |
20346722 | 4275 | * 4. Error in any functional blocks of the NIC. |
1da177e4 LT |
4276 | */ |
4277 | reason = readq(&bar0->general_int_status); | |
4278 | ||
4279 | if (!reason) { | |
19a60522 SS |
4280 | /* The interrupt was not raised by us. */ |
4281 | atomic_dec(&sp->isr_cnt); | |
4282 | return IRQ_NONE; | |
4283 | } | |
4284 | else if (unlikely(reason == S2IO_MINUS_ONE) ) { | |
4285 | /* Disable device and get out */ | |
7ba013ac | 4286 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4287 | return IRQ_NONE; |
4288 | } | |
5d3213cc | 4289 | |
db874e65 SS |
4290 | if (napi) { |
4291 | if (reason & GEN_INTR_RXTRAFFIC) { | |
19a60522 | 4292 | if ( likely ( netif_rx_schedule_prep(dev)) ) { |
db874e65 | 4293 | __netif_rx_schedule(dev); |
19a60522 | 4294 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask); |
db874e65 | 4295 | } |
19a60522 SS |
4296 | else |
4297 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
db874e65 SS |
4298 | } |
4299 | } else { | |
4300 | /* | |
4301 | * Rx handler is called by default, without checking for the | |
4302 | * cause of interrupt. | |
4303 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4304 | * will ensure that the actual interrupt causing bit get's | |
4305 | * cleared and hence a read can be avoided. | |
4306 | */ | |
19a60522 SS |
4307 | if (reason & GEN_INTR_RXTRAFFIC) |
4308 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
4309 | ||
db874e65 SS |
4310 | for (i = 0; i < config->rx_ring_num; i++) { |
4311 | rx_intr_handler(&mac_control->rings[i]); | |
1da177e4 LT |
4312 | } |
4313 | } | |
1da177e4 | 4314 | |
863c11a9 AR |
4315 | /* |
4316 | * tx_traffic_int reg is an R1 register, writing all 1's | |
4317 | * will ensure that the actual interrupt causing bit get's | |
4318 | * cleared and hence a read can be avoided. | |
4319 | */ | |
19a60522 SS |
4320 | if (reason & GEN_INTR_TXTRAFFIC) |
4321 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
fe113638 | 4322 | |
863c11a9 AR |
4323 | for (i = 0; i < config->tx_fifo_num; i++) |
4324 | tx_intr_handler(&mac_control->fifos[i]); | |
20346722 | 4325 | |
a371a07d K |
4326 | if (reason & GEN_INTR_TXPIC) |
4327 | s2io_txpic_intr_handle(sp); | |
20346722 K |
4328 | /* |
4329 | * If the Rx buffer count is below the panic threshold then | |
4330 | * reallocate the buffers from the interrupt handler itself, | |
1da177e4 LT |
4331 | * else schedule a tasklet to reallocate the buffers. |
4332 | */ | |
db874e65 SS |
4333 | if (!napi) { |
4334 | for (i = 0; i < config->rx_ring_num; i++) | |
4335 | s2io_chk_rx_buffers(sp, i); | |
4336 | } | |
4337 | ||
4338 | writeq(0, &bar0->general_int_mask); | |
4339 | readl(&bar0->general_int_status); | |
4340 | ||
7ba013ac | 4341 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4342 | return IRQ_HANDLED; |
4343 | } | |
4344 | ||
7ba013ac K |
4345 | /** |
4346 | * s2io_updt_stats - | |
4347 | */ | |
1ee6dd77 | 4348 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4349 | { |
1ee6dd77 | 4350 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac K |
4351 | u64 val64; |
4352 | int cnt = 0; | |
4353 | ||
4354 | if (atomic_read(&sp->card_state) == CARD_UP) { | |
4355 | /* Apprx 30us on a 133 MHz bus */ | |
4356 | val64 = SET_UPDT_CLICKS(10) | | |
4357 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4358 | writeq(val64, &bar0->stat_cfg); | |
4359 | do { | |
4360 | udelay(100); | |
4361 | val64 = readq(&bar0->stat_cfg); | |
4362 | if (!(val64 & BIT(0))) | |
4363 | break; | |
4364 | cnt++; | |
4365 | if (cnt == 5) | |
4366 | break; /* Updt failed */ | |
4367 | } while(1); | |
363dc367 | 4368 | } |
7ba013ac K |
4369 | } |
4370 | ||
1da177e4 | 4371 | /** |
20346722 | 4372 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4373 | * @dev : pointer to the device structure. |
4374 | * Description: | |
20346722 | 4375 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4376 | * structure and returns a pointer to the same. |
4377 | * Return value: | |
4378 | * pointer to the updated net_device_stats structure. | |
4379 | */ | |
4380 | ||
ac1f60db | 4381 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4382 | { |
1ee6dd77 RB |
4383 | struct s2io_nic *sp = dev->priv; |
4384 | struct mac_info *mac_control; | |
1da177e4 LT |
4385 | struct config_param *config; |
4386 | ||
20346722 | 4387 | |
1da177e4 LT |
4388 | mac_control = &sp->mac_control; |
4389 | config = &sp->config; | |
4390 | ||
7ba013ac K |
4391 | /* Configure Stats for immediate updt */ |
4392 | s2io_updt_stats(sp); | |
4393 | ||
4394 | sp->stats.tx_packets = | |
4395 | le32_to_cpu(mac_control->stats_info->tmac_frms); | |
20346722 K |
4396 | sp->stats.tx_errors = |
4397 | le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); | |
4398 | sp->stats.rx_errors = | |
ee705dba | 4399 | le64_to_cpu(mac_control->stats_info->rmac_drop_frms); |
20346722 K |
4400 | sp->stats.multicast = |
4401 | le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); | |
1da177e4 | 4402 | sp->stats.rx_length_errors = |
ee705dba | 4403 | le64_to_cpu(mac_control->stats_info->rmac_long_frms); |
1da177e4 LT |
4404 | |
4405 | return (&sp->stats); | |
4406 | } | |
4407 | ||
4408 | /** | |
4409 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4410 | * @dev : pointer to the device structure | |
4411 | * Description: | |
20346722 K |
4412 | * This function is a driver entry point which gets called by the kernel |
4413 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4414 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4415 | * determine, if multicast address must be enabled or if promiscuous mode | |
4416 | * is to be disabled etc. | |
4417 | * Return value: | |
4418 | * void. | |
4419 | */ | |
4420 | ||
4421 | static void s2io_set_multicast(struct net_device *dev) | |
4422 | { | |
4423 | int i, j, prev_cnt; | |
4424 | struct dev_mc_list *mclist; | |
1ee6dd77 RB |
4425 | struct s2io_nic *sp = dev->priv; |
4426 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4427 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
4428 | 0xfeffffffffffULL; | |
4429 | u64 dis_addr = 0xffffffffffffULL, mac_addr = 0; | |
4430 | void __iomem *add; | |
4431 | ||
4432 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4433 | /* Enable all Multicast addresses */ | |
4434 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4435 | &bar0->rmac_addr_data0_mem); | |
4436 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4437 | &bar0->rmac_addr_data1_mem); | |
4438 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
4439 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4440 | RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET); | |
4441 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4442 | /* Wait till command completes */ | |
c92ca04b | 4443 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4444 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4445 | S2IO_BIT_RESET); | |
1da177e4 LT |
4446 | |
4447 | sp->m_cast_flg = 1; | |
4448 | sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET; | |
4449 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { | |
4450 | /* Disable all Multicast addresses */ | |
4451 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4452 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd K |
4453 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4454 | &bar0->rmac_addr_data1_mem); | |
1da177e4 LT |
4455 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4456 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4457 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
4458 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4459 | /* Wait till command completes */ | |
c92ca04b | 4460 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4461 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4462 | S2IO_BIT_RESET); | |
1da177e4 LT |
4463 | |
4464 | sp->m_cast_flg = 0; | |
4465 | sp->all_multi_pos = 0; | |
4466 | } | |
4467 | ||
4468 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4469 | /* Put the NIC into promiscuous mode */ | |
4470 | add = &bar0->mac_cfg; | |
4471 | val64 = readq(&bar0->mac_cfg); | |
4472 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4473 | ||
4474 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4475 | writel((u32) val64, add); | |
4476 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4477 | writel((u32) (val64 >> 32), (add + 4)); | |
4478 | ||
926930b2 SS |
4479 | if (vlan_tag_strip != 1) { |
4480 | val64 = readq(&bar0->rx_pa_cfg); | |
4481 | val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG; | |
4482 | writeq(val64, &bar0->rx_pa_cfg); | |
4483 | vlan_strip_flag = 0; | |
4484 | } | |
4485 | ||
1da177e4 LT |
4486 | val64 = readq(&bar0->mac_cfg); |
4487 | sp->promisc_flg = 1; | |
776bd20f | 4488 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
4489 | dev->name); |
4490 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
4491 | /* Remove the NIC from promiscuous mode */ | |
4492 | add = &bar0->mac_cfg; | |
4493 | val64 = readq(&bar0->mac_cfg); | |
4494 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
4495 | ||
4496 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4497 | writel((u32) val64, add); | |
4498 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4499 | writel((u32) (val64 >> 32), (add + 4)); | |
4500 | ||
926930b2 SS |
4501 | if (vlan_tag_strip != 0) { |
4502 | val64 = readq(&bar0->rx_pa_cfg); | |
4503 | val64 |= RX_PA_CFG_STRIP_VLAN_TAG; | |
4504 | writeq(val64, &bar0->rx_pa_cfg); | |
4505 | vlan_strip_flag = 1; | |
4506 | } | |
4507 | ||
1da177e4 LT |
4508 | val64 = readq(&bar0->mac_cfg); |
4509 | sp->promisc_flg = 0; | |
776bd20f | 4510 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", |
1da177e4 LT |
4511 | dev->name); |
4512 | } | |
4513 | ||
4514 | /* Update individual M_CAST address list */ | |
4515 | if ((!sp->m_cast_flg) && dev->mc_count) { | |
4516 | if (dev->mc_count > | |
4517 | (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) { | |
4518 | DBG_PRINT(ERR_DBG, "%s: No more Rx filters ", | |
4519 | dev->name); | |
4520 | DBG_PRINT(ERR_DBG, "can be added, please enable "); | |
4521 | DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n"); | |
4522 | return; | |
4523 | } | |
4524 | ||
4525 | prev_cnt = sp->mc_addr_count; | |
4526 | sp->mc_addr_count = dev->mc_count; | |
4527 | ||
4528 | /* Clear out the previous list of Mc in the H/W. */ | |
4529 | for (i = 0; i < prev_cnt; i++) { | |
4530 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4531 | &bar0->rmac_addr_data0_mem); | |
4532 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4533 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4534 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4535 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4536 | RMAC_ADDR_CMD_MEM_OFFSET | |
4537 | (MAC_MC_ADDR_START_OFFSET + i); | |
4538 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4539 | ||
4540 | /* Wait for command completes */ | |
c92ca04b | 4541 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4542 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4543 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4544 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4545 | dev->name); | |
4546 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4547 | return; | |
4548 | } | |
4549 | } | |
4550 | ||
4551 | /* Create the new Rx filter list and update the same in H/W. */ | |
4552 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
4553 | i++, mclist = mclist->next) { | |
4554 | memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr, | |
4555 | ETH_ALEN); | |
a7a80d5a | 4556 | mac_addr = 0; |
1da177e4 LT |
4557 | for (j = 0; j < ETH_ALEN; j++) { |
4558 | mac_addr |= mclist->dmi_addr[j]; | |
4559 | mac_addr <<= 8; | |
4560 | } | |
4561 | mac_addr >>= 8; | |
4562 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4563 | &bar0->rmac_addr_data0_mem); | |
4564 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4565 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4566 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4567 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4568 | RMAC_ADDR_CMD_MEM_OFFSET | |
4569 | (i + MAC_MC_ADDR_START_OFFSET); | |
4570 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4571 | ||
4572 | /* Wait for command completes */ | |
c92ca04b | 4573 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 SS |
4574 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, |
4575 | S2IO_BIT_RESET)) { | |
1da177e4 LT |
4576 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4577 | dev->name); | |
4578 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4579 | return; | |
4580 | } | |
4581 | } | |
4582 | } | |
4583 | } | |
4584 | ||
4585 | /** | |
20346722 | 4586 | * s2io_set_mac_addr - Programs the Xframe mac address |
1da177e4 LT |
4587 | * @dev : pointer to the device structure. |
4588 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 4589 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 4590 | * frames with new Mac Address |
20346722 | 4591 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
4592 | * as defined in errno.h file on failure. |
4593 | */ | |
4594 | ||
26df54bf | 4595 | static int s2io_set_mac_addr(struct net_device *dev, u8 * addr) |
1da177e4 | 4596 | { |
1ee6dd77 RB |
4597 | struct s2io_nic *sp = dev->priv; |
4598 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4599 | register u64 val64, mac_addr = 0; |
4600 | int i; | |
d8d70caf | 4601 | u64 old_mac_addr = 0; |
1da177e4 | 4602 | |
20346722 | 4603 | /* |
1da177e4 LT |
4604 | * Set the new MAC address as the new unicast filter and reflect this |
4605 | * change on the device address registered with the OS. It will be | |
20346722 | 4606 | * at offset 0. |
1da177e4 LT |
4607 | */ |
4608 | for (i = 0; i < ETH_ALEN; i++) { | |
4609 | mac_addr <<= 8; | |
4610 | mac_addr |= addr[i]; | |
d8d70caf SS |
4611 | old_mac_addr <<= 8; |
4612 | old_mac_addr |= sp->def_mac_addr[0].mac_addr[i]; | |
4613 | } | |
4614 | ||
4615 | if(0 == mac_addr) | |
4616 | return SUCCESS; | |
4617 | ||
4618 | /* Update the internal structure with this new mac address */ | |
4619 | if(mac_addr != old_mac_addr) { | |
4620 | memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN)); | |
4621 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_addr); | |
4622 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_addr >> 8); | |
4623 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_addr >> 16); | |
4624 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_addr >> 24); | |
4625 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_addr >> 32); | |
4626 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_addr >> 40); | |
1da177e4 LT |
4627 | } |
4628 | ||
4629 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4630 | &bar0->rmac_addr_data0_mem); | |
4631 | ||
4632 | val64 = | |
4633 | RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4634 | RMAC_ADDR_CMD_MEM_OFFSET(0); | |
4635 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4636 | /* Wait till command completes */ | |
c92ca04b | 4637 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 | 4638 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET)) { |
1da177e4 LT |
4639 | DBG_PRINT(ERR_DBG, "%s: set_mac_addr failed\n", dev->name); |
4640 | return FAILURE; | |
4641 | } | |
4642 | ||
4643 | return SUCCESS; | |
4644 | } | |
4645 | ||
4646 | /** | |
20346722 | 4647 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
4648 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
4649 | * @info: pointer to the structure with parameters given by ethtool to set | |
4650 | * link information. | |
4651 | * Description: | |
20346722 | 4652 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
4653 | * the NIC. |
4654 | * Return value: | |
4655 | * 0 on success. | |
4656 | */ | |
4657 | ||
4658 | static int s2io_ethtool_sset(struct net_device *dev, | |
4659 | struct ethtool_cmd *info) | |
4660 | { | |
1ee6dd77 | 4661 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4662 | if ((info->autoneg == AUTONEG_ENABLE) || |
4663 | (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL)) | |
4664 | return -EINVAL; | |
4665 | else { | |
4666 | s2io_close(sp->dev); | |
4667 | s2io_open(sp->dev); | |
4668 | } | |
4669 | ||
4670 | return 0; | |
4671 | } | |
4672 | ||
4673 | /** | |
20346722 | 4674 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
4675 | * @sp : private member of the device structure, pointer to the |
4676 | * s2io_nic structure. | |
4677 | * @info : pointer to the structure with parameters given by ethtool | |
4678 | * to return link information. | |
4679 | * Description: | |
4680 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
4681 | * Return value : | |
4682 | * return 0 on success. | |
4683 | */ | |
4684 | ||
4685 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
4686 | { | |
1ee6dd77 | 4687 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4688 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
4689 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
4690 | info->port = PORT_FIBRE; | |
4691 | /* info->transceiver?? TODO */ | |
4692 | ||
4693 | if (netif_carrier_ok(sp->dev)) { | |
4694 | info->speed = 10000; | |
4695 | info->duplex = DUPLEX_FULL; | |
4696 | } else { | |
4697 | info->speed = -1; | |
4698 | info->duplex = -1; | |
4699 | } | |
4700 | ||
4701 | info->autoneg = AUTONEG_DISABLE; | |
4702 | return 0; | |
4703 | } | |
4704 | ||
4705 | /** | |
20346722 K |
4706 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
4707 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
4708 | * s2io_nic structure. |
4709 | * @info : pointer to the structure with parameters given by ethtool to | |
4710 | * return driver information. | |
4711 | * Description: | |
4712 | * Returns driver specefic information like name, version etc.. to ethtool. | |
4713 | * Return value: | |
4714 | * void | |
4715 | */ | |
4716 | ||
4717 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
4718 | struct ethtool_drvinfo *info) | |
4719 | { | |
1ee6dd77 | 4720 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 4721 | |
dbc2309d JL |
4722 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
4723 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
4724 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
4725 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
4726 | info->regdump_len = XENA_REG_SPACE; |
4727 | info->eedump_len = XENA_EEPROM_SPACE; | |
4728 | info->testinfo_len = S2IO_TEST_LEN; | |
fa1f0cb3 SS |
4729 | |
4730 | if (sp->device_type == XFRAME_I_DEVICE) | |
4731 | info->n_stats = XFRAME_I_STAT_LEN; | |
4732 | else | |
4733 | info->n_stats = XFRAME_II_STAT_LEN; | |
1da177e4 LT |
4734 | } |
4735 | ||
4736 | /** | |
4737 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 4738 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 4739 | * s2io_nic structure. |
20346722 | 4740 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
4741 | * dumping the registers. |
4742 | * @reg_space: The input argumnet into which all the registers are dumped. | |
4743 | * Description: | |
4744 | * Dumps the entire register space of xFrame NIC into the user given | |
4745 | * buffer area. | |
4746 | * Return value : | |
4747 | * void . | |
4748 | */ | |
4749 | ||
4750 | static void s2io_ethtool_gregs(struct net_device *dev, | |
4751 | struct ethtool_regs *regs, void *space) | |
4752 | { | |
4753 | int i; | |
4754 | u64 reg; | |
4755 | u8 *reg_space = (u8 *) space; | |
1ee6dd77 | 4756 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4757 | |
4758 | regs->len = XENA_REG_SPACE; | |
4759 | regs->version = sp->pdev->subsystem_device; | |
4760 | ||
4761 | for (i = 0; i < regs->len; i += 8) { | |
4762 | reg = readq(sp->bar0 + i); | |
4763 | memcpy((reg_space + i), ®, 8); | |
4764 | } | |
4765 | } | |
4766 | ||
4767 | /** | |
4768 | * s2io_phy_id - timer function that alternates adapter LED. | |
20346722 | 4769 | * @data : address of the private member of the device structure, which |
1da177e4 | 4770 | * is a pointer to the s2io_nic structure, provided as an u32. |
20346722 K |
4771 | * Description: This is actually the timer function that alternates the |
4772 | * adapter LED bit of the adapter control bit to set/reset every time on | |
4773 | * invocation. The timer is set for 1/2 a second, hence tha NIC blinks | |
1da177e4 LT |
4774 | * once every second. |
4775 | */ | |
4776 | static void s2io_phy_id(unsigned long data) | |
4777 | { | |
1ee6dd77 RB |
4778 | struct s2io_nic *sp = (struct s2io_nic *) data; |
4779 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4780 | u64 val64 = 0; |
4781 | u16 subid; | |
4782 | ||
4783 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
4784 | if ((sp->device_type == XFRAME_II_DEVICE) || |
4785 | ((subid & 0xFF) >= 0x07)) { | |
1da177e4 LT |
4786 | val64 = readq(&bar0->gpio_control); |
4787 | val64 ^= GPIO_CTRL_GPIO_0; | |
4788 | writeq(val64, &bar0->gpio_control); | |
4789 | } else { | |
4790 | val64 = readq(&bar0->adapter_control); | |
4791 | val64 ^= ADAPTER_LED_ON; | |
4792 | writeq(val64, &bar0->adapter_control); | |
4793 | } | |
4794 | ||
4795 | mod_timer(&sp->id_timer, jiffies + HZ / 2); | |
4796 | } | |
4797 | ||
4798 | /** | |
4799 | * s2io_ethtool_idnic - To physically identify the nic on the system. | |
4800 | * @sp : private member of the device structure, which is a pointer to the | |
4801 | * s2io_nic structure. | |
20346722 | 4802 | * @id : pointer to the structure with identification parameters given by |
1da177e4 LT |
4803 | * ethtool. |
4804 | * Description: Used to physically identify the NIC on the system. | |
20346722 | 4805 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 4806 | * identification. |
20346722 | 4807 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 LT |
4808 | * identification is possible only if it's link is up. |
4809 | * Return value: | |
4810 | * int , returns 0 on success | |
4811 | */ | |
4812 | ||
4813 | static int s2io_ethtool_idnic(struct net_device *dev, u32 data) | |
4814 | { | |
4815 | u64 val64 = 0, last_gpio_ctrl_val; | |
1ee6dd77 RB |
4816 | struct s2io_nic *sp = dev->priv; |
4817 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4818 | u16 subid; |
4819 | ||
4820 | subid = sp->pdev->subsystem_device; | |
4821 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
541ae68f K |
4822 | if ((sp->device_type == XFRAME_I_DEVICE) && |
4823 | ((subid & 0xFF) < 0x07)) { | |
1da177e4 LT |
4824 | val64 = readq(&bar0->adapter_control); |
4825 | if (!(val64 & ADAPTER_CNTL_EN)) { | |
4826 | printk(KERN_ERR | |
4827 | "Adapter Link down, cannot blink LED\n"); | |
4828 | return -EFAULT; | |
4829 | } | |
4830 | } | |
4831 | if (sp->id_timer.function == NULL) { | |
4832 | init_timer(&sp->id_timer); | |
4833 | sp->id_timer.function = s2io_phy_id; | |
4834 | sp->id_timer.data = (unsigned long) sp; | |
4835 | } | |
4836 | mod_timer(&sp->id_timer, jiffies); | |
4837 | if (data) | |
20346722 | 4838 | msleep_interruptible(data * HZ); |
1da177e4 | 4839 | else |
20346722 | 4840 | msleep_interruptible(MAX_FLICKER_TIME); |
1da177e4 LT |
4841 | del_timer_sync(&sp->id_timer); |
4842 | ||
541ae68f | 4843 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) { |
1da177e4 LT |
4844 | writeq(last_gpio_ctrl_val, &bar0->gpio_control); |
4845 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
4846 | } | |
4847 | ||
4848 | return 0; | |
4849 | } | |
4850 | ||
0cec35eb SH |
4851 | static void s2io_ethtool_gringparam(struct net_device *dev, |
4852 | struct ethtool_ringparam *ering) | |
4853 | { | |
4854 | struct s2io_nic *sp = dev->priv; | |
4855 | int i,tx_desc_count=0,rx_desc_count=0; | |
4856 | ||
4857 | if (sp->rxd_mode == RXD_MODE_1) | |
4858 | ering->rx_max_pending = MAX_RX_DESC_1; | |
4859 | else if (sp->rxd_mode == RXD_MODE_3B) | |
4860 | ering->rx_max_pending = MAX_RX_DESC_2; | |
0cec35eb SH |
4861 | |
4862 | ering->tx_max_pending = MAX_TX_DESC; | |
4863 | for (i = 0 ; i < sp->config.tx_fifo_num ; i++) { | |
4864 | tx_desc_count += sp->config.tx_cfg[i].fifo_len; | |
4865 | } | |
4866 | DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds); | |
4867 | ering->tx_pending = tx_desc_count; | |
4868 | rx_desc_count = 0; | |
4869 | for (i = 0 ; i < sp->config.rx_ring_num ; i++) { | |
4870 | rx_desc_count += sp->config.rx_cfg[i].num_rxd; | |
4871 | } | |
4872 | ering->rx_pending = rx_desc_count; | |
4873 | ||
4874 | ering->rx_mini_max_pending = 0; | |
4875 | ering->rx_mini_pending = 0; | |
4876 | if(sp->rxd_mode == RXD_MODE_1) | |
4877 | ering->rx_jumbo_max_pending = MAX_RX_DESC_1; | |
4878 | else if (sp->rxd_mode == RXD_MODE_3B) | |
4879 | ering->rx_jumbo_max_pending = MAX_RX_DESC_2; | |
4880 | ering->rx_jumbo_pending = rx_desc_count; | |
4881 | } | |
4882 | ||
1da177e4 LT |
4883 | /** |
4884 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 K |
4885 | * @sp : private member of the device structure, which is a pointer to the |
4886 | * s2io_nic structure. | |
1da177e4 LT |
4887 | * @ep : pointer to the structure with pause parameters given by ethtool. |
4888 | * Description: | |
4889 | * Returns the Pause frame generation and reception capability of the NIC. | |
4890 | * Return value: | |
4891 | * void | |
4892 | */ | |
4893 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
4894 | struct ethtool_pauseparam *ep) | |
4895 | { | |
4896 | u64 val64; | |
1ee6dd77 RB |
4897 | struct s2io_nic *sp = dev->priv; |
4898 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4899 | |
4900 | val64 = readq(&bar0->rmac_pause_cfg); | |
4901 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
4902 | ep->tx_pause = TRUE; | |
4903 | if (val64 & RMAC_PAUSE_RX_ENABLE) | |
4904 | ep->rx_pause = TRUE; | |
4905 | ep->autoneg = FALSE; | |
4906 | } | |
4907 | ||
4908 | /** | |
4909 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 4910 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4911 | * s2io_nic structure. |
4912 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
4913 | * Description: | |
4914 | * It can be used to set or reset Pause frame generation or reception | |
4915 | * support of the NIC. | |
4916 | * Return value: | |
4917 | * int, returns 0 on Success | |
4918 | */ | |
4919 | ||
4920 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
20346722 | 4921 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
4922 | { |
4923 | u64 val64; | |
1ee6dd77 RB |
4924 | struct s2io_nic *sp = dev->priv; |
4925 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4926 | |
4927 | val64 = readq(&bar0->rmac_pause_cfg); | |
4928 | if (ep->tx_pause) | |
4929 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
4930 | else | |
4931 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
4932 | if (ep->rx_pause) | |
4933 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
4934 | else | |
4935 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
4936 | writeq(val64, &bar0->rmac_pause_cfg); | |
4937 | return 0; | |
4938 | } | |
4939 | ||
4940 | /** | |
4941 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 4942 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4943 | * s2io_nic structure. |
4944 | * @off : offset at which the data must be written | |
4945 | * @data : Its an output parameter where the data read at the given | |
20346722 | 4946 | * offset is stored. |
1da177e4 | 4947 | * Description: |
20346722 | 4948 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
4949 | * read data. |
4950 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
4951 | * I2C bus. | |
4952 | * Return value: | |
4953 | * -1 on failure and 0 on success. | |
4954 | */ | |
4955 | ||
4956 | #define S2IO_DEV_ID 5 | |
1ee6dd77 | 4957 | static int read_eeprom(struct s2io_nic * sp, int off, u64 * data) |
1da177e4 LT |
4958 | { |
4959 | int ret = -1; | |
4960 | u32 exit_cnt = 0; | |
4961 | u64 val64; | |
1ee6dd77 | 4962 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4963 | |
ad4ebed0 | 4964 | if (sp->device_type == XFRAME_I_DEVICE) { |
4965 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
4966 | I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ | | |
4967 | I2C_CONTROL_CNTL_START; | |
4968 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
1da177e4 | 4969 | |
ad4ebed0 | 4970 | while (exit_cnt < 5) { |
4971 | val64 = readq(&bar0->i2c_control); | |
4972 | if (I2C_CONTROL_CNTL_END(val64)) { | |
4973 | *data = I2C_CONTROL_GET_DATA(val64); | |
4974 | ret = 0; | |
4975 | break; | |
4976 | } | |
4977 | msleep(50); | |
4978 | exit_cnt++; | |
1da177e4 | 4979 | } |
1da177e4 LT |
4980 | } |
4981 | ||
ad4ebed0 | 4982 | if (sp->device_type == XFRAME_II_DEVICE) { |
4983 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 4984 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 4985 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
4986 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4987 | val64 |= SPI_CONTROL_REQ; | |
4988 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4989 | while (exit_cnt < 5) { | |
4990 | val64 = readq(&bar0->spi_control); | |
4991 | if (val64 & SPI_CONTROL_NACK) { | |
4992 | ret = 1; | |
4993 | break; | |
4994 | } else if (val64 & SPI_CONTROL_DONE) { | |
4995 | *data = readq(&bar0->spi_data); | |
4996 | *data &= 0xffffff; | |
4997 | ret = 0; | |
4998 | break; | |
4999 | } | |
5000 | msleep(50); | |
5001 | exit_cnt++; | |
5002 | } | |
5003 | } | |
1da177e4 LT |
5004 | return ret; |
5005 | } | |
5006 | ||
5007 | /** | |
5008 | * write_eeprom - actually writes the relevant part of the data value. | |
5009 | * @sp : private member of the device structure, which is a pointer to the | |
5010 | * s2io_nic structure. | |
5011 | * @off : offset at which the data must be written | |
5012 | * @data : The data that is to be written | |
20346722 | 5013 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
5014 | * the Eeprom. (max of 3) |
5015 | * Description: | |
5016 | * Actually writes the relevant part of the data value into the Eeprom | |
5017 | * through the I2C bus. | |
5018 | * Return value: | |
5019 | * 0 on success, -1 on failure. | |
5020 | */ | |
5021 | ||
1ee6dd77 | 5022 | static int write_eeprom(struct s2io_nic * sp, int off, u64 data, int cnt) |
1da177e4 LT |
5023 | { |
5024 | int exit_cnt = 0, ret = -1; | |
5025 | u64 val64; | |
1ee6dd77 | 5026 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5027 | |
ad4ebed0 | 5028 | if (sp->device_type == XFRAME_I_DEVICE) { |
5029 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
5030 | I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) | | |
5031 | I2C_CONTROL_CNTL_START; | |
5032 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
5033 | ||
5034 | while (exit_cnt < 5) { | |
5035 | val64 = readq(&bar0->i2c_control); | |
5036 | if (I2C_CONTROL_CNTL_END(val64)) { | |
5037 | if (!(val64 & I2C_CONTROL_NACK)) | |
5038 | ret = 0; | |
5039 | break; | |
5040 | } | |
5041 | msleep(50); | |
5042 | exit_cnt++; | |
5043 | } | |
5044 | } | |
1da177e4 | 5045 | |
ad4ebed0 | 5046 | if (sp->device_type == XFRAME_II_DEVICE) { |
5047 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
5048 | writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data); | |
5049 | ||
5050 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 5051 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 5052 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
5053 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5054 | val64 |= SPI_CONTROL_REQ; | |
5055 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
5056 | while (exit_cnt < 5) { | |
5057 | val64 = readq(&bar0->spi_control); | |
5058 | if (val64 & SPI_CONTROL_NACK) { | |
5059 | ret = 1; | |
5060 | break; | |
5061 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 5062 | ret = 0; |
ad4ebed0 | 5063 | break; |
5064 | } | |
5065 | msleep(50); | |
5066 | exit_cnt++; | |
1da177e4 | 5067 | } |
1da177e4 | 5068 | } |
1da177e4 LT |
5069 | return ret; |
5070 | } | |
1ee6dd77 | 5071 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 5072 | { |
b41477f3 AR |
5073 | u8 *vpd_data; |
5074 | u8 data; | |
9dc737a7 AR |
5075 | int i=0, cnt, fail = 0; |
5076 | int vpd_addr = 0x80; | |
5077 | ||
5078 | if (nic->device_type == XFRAME_II_DEVICE) { | |
5079 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
5080 | vpd_addr = 0x80; | |
5081 | } | |
5082 | else { | |
5083 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); | |
5084 | vpd_addr = 0x50; | |
5085 | } | |
19a60522 | 5086 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 5087 | |
b41477f3 | 5088 | vpd_data = kmalloc(256, GFP_KERNEL); |
c53d4945 SH |
5089 | if (!vpd_data) { |
5090 | nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; | |
b41477f3 | 5091 | return; |
c53d4945 | 5092 | } |
491976b2 | 5093 | nic->mac_control.stats_info->sw_stat.mem_allocated += 256; |
b41477f3 | 5094 | |
9dc737a7 AR |
5095 | for (i = 0; i < 256; i +=4 ) { |
5096 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); | |
5097 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
5098 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
5099 | for (cnt = 0; cnt <5; cnt++) { | |
5100 | msleep(2); | |
5101 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
5102 | if (data == 0x80) | |
5103 | break; | |
5104 | } | |
5105 | if (cnt >= 5) { | |
5106 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
5107 | fail = 1; | |
5108 | break; | |
5109 | } | |
5110 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
5111 | (u32 *)&vpd_data[i]); | |
5112 | } | |
19a60522 SS |
5113 | |
5114 | if(!fail) { | |
5115 | /* read serial number of adapter */ | |
5116 | for (cnt = 0; cnt < 256; cnt++) { | |
5117 | if ((vpd_data[cnt] == 'S') && | |
5118 | (vpd_data[cnt+1] == 'N') && | |
5119 | (vpd_data[cnt+2] < VPD_STRING_LEN)) { | |
5120 | memset(nic->serial_num, 0, VPD_STRING_LEN); | |
5121 | memcpy(nic->serial_num, &vpd_data[cnt + 3], | |
5122 | vpd_data[cnt+2]); | |
5123 | break; | |
5124 | } | |
5125 | } | |
5126 | } | |
5127 | ||
5128 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { | |
9dc737a7 AR |
5129 | memset(nic->product_name, 0, vpd_data[1]); |
5130 | memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); | |
5131 | } | |
b41477f3 | 5132 | kfree(vpd_data); |
491976b2 | 5133 | nic->mac_control.stats_info->sw_stat.mem_freed += 256; |
9dc737a7 AR |
5134 | } |
5135 | ||
1da177e4 LT |
5136 | /** |
5137 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
5138 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 5139 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5140 | * containing all relevant information. |
5141 | * @data_buf : user defined value to be written into Eeprom. | |
5142 | * Description: Reads the values stored in the Eeprom at given offset | |
5143 | * for a given length. Stores these values int the input argument data | |
5144 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
5145 | * Return value: | |
5146 | * int 0 on success | |
5147 | */ | |
5148 | ||
5149 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
20346722 | 5150 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 5151 | { |
ad4ebed0 | 5152 | u32 i, valid; |
5153 | u64 data; | |
1ee6dd77 | 5154 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5155 | |
5156 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
5157 | ||
5158 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
5159 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
5160 | ||
5161 | for (i = 0; i < eeprom->len; i += 4) { | |
5162 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
5163 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
5164 | return -EFAULT; | |
5165 | } | |
5166 | valid = INV(data); | |
5167 | memcpy((data_buf + i), &valid, 4); | |
5168 | } | |
5169 | return 0; | |
5170 | } | |
5171 | ||
5172 | /** | |
5173 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
5174 | * @sp : private member of the device structure, which is a pointer to the | |
5175 | * s2io_nic structure. | |
20346722 | 5176 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
5177 | * containing all relevant information. |
5178 | * @data_buf ; user defined value to be written into Eeprom. | |
5179 | * Description: | |
5180 | * Tries to write the user provided value in the Eeprom, at the offset | |
5181 | * given by the user. | |
5182 | * Return value: | |
5183 | * 0 on success, -EFAULT on failure. | |
5184 | */ | |
5185 | ||
5186 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5187 | struct ethtool_eeprom *eeprom, | |
5188 | u8 * data_buf) | |
5189 | { | |
5190 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5191 | u64 valid = 0, data; |
1ee6dd77 | 5192 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5193 | |
5194 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5195 | DBG_PRINT(ERR_DBG, | |
5196 | "ETHTOOL_WRITE_EEPROM Err: Magic value "); | |
5197 | DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n", | |
5198 | eeprom->magic); | |
5199 | return -EFAULT; | |
5200 | } | |
5201 | ||
5202 | while (len) { | |
5203 | data = (u32) data_buf[cnt] & 0x000000FF; | |
5204 | if (data) { | |
5205 | valid = (u32) (data << 24); | |
5206 | } else | |
5207 | valid = data; | |
5208 | ||
5209 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5210 | DBG_PRINT(ERR_DBG, | |
5211 | "ETHTOOL_WRITE_EEPROM Err: Cannot "); | |
5212 | DBG_PRINT(ERR_DBG, | |
5213 | "write into the specified offset\n"); | |
5214 | return -EFAULT; | |
5215 | } | |
5216 | cnt++; | |
5217 | len--; | |
5218 | } | |
5219 | ||
5220 | return 0; | |
5221 | } | |
5222 | ||
5223 | /** | |
20346722 K |
5224 | * s2io_register_test - reads and writes into all clock domains. |
5225 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5226 | * s2io_nic structure. |
5227 | * @data : variable that returns the result of each of the test conducted b | |
5228 | * by the driver. | |
5229 | * Description: | |
5230 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5231 | * see that registers in all the three regions are accessible. | |
5232 | * Return value: | |
5233 | * 0 on success. | |
5234 | */ | |
5235 | ||
1ee6dd77 | 5236 | static int s2io_register_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5237 | { |
1ee6dd77 | 5238 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5239 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5240 | int fail = 0; |
5241 | ||
20346722 K |
5242 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5243 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 LT |
5244 | fail = 1; |
5245 | DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n"); | |
5246 | } | |
5247 | ||
5248 | val64 = readq(&bar0->rmac_pause_cfg); | |
5249 | if (val64 != 0xc000ffff00000000ULL) { | |
5250 | fail = 1; | |
5251 | DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n"); | |
5252 | } | |
5253 | ||
5254 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5255 | if (sp->device_type == XFRAME_II_DEVICE) |
5256 | exp_val = 0x0404040404040404ULL; | |
5257 | else | |
5258 | exp_val = 0x0808080808080808ULL; | |
5259 | if (val64 != exp_val) { | |
1da177e4 LT |
5260 | fail = 1; |
5261 | DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n"); | |
5262 | } | |
5263 | ||
5264 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5265 | if (val64 != 0x000000001923141EULL) { | |
5266 | fail = 1; | |
5267 | DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n"); | |
5268 | } | |
5269 | ||
5270 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5271 | writeq(val64, &bar0->xmsi_data); | |
5272 | val64 = readq(&bar0->xmsi_data); | |
5273 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5274 | fail = 1; | |
5275 | DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n"); | |
5276 | } | |
5277 | ||
5278 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5279 | writeq(val64, &bar0->xmsi_data); | |
5280 | val64 = readq(&bar0->xmsi_data); | |
5281 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5282 | fail = 1; | |
5283 | DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n"); | |
5284 | } | |
5285 | ||
5286 | *data = fail; | |
ad4ebed0 | 5287 | return fail; |
1da177e4 LT |
5288 | } |
5289 | ||
5290 | /** | |
20346722 | 5291 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5292 | * @sp : private member of the device structure, which is a pointer to the |
5293 | * s2io_nic structure. | |
5294 | * @data:variable that returns the result of each of the test conducted by | |
5295 | * the driver. | |
5296 | * Description: | |
20346722 | 5297 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5298 | * register. |
5299 | * Return value: | |
5300 | * 0 on success. | |
5301 | */ | |
5302 | ||
1ee6dd77 | 5303 | static int s2io_eeprom_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5304 | { |
5305 | int fail = 0; | |
ad4ebed0 | 5306 | u64 ret_data, org_4F0, org_7F0; |
5307 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5308 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5309 | |
5310 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5311 | /* Note that SPI interface allows write access to all areas |
5312 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5313 | */ | |
5314 | if (sp->device_type == XFRAME_I_DEVICE) | |
5315 | if (!write_eeprom(sp, 0, 0, 3)) | |
5316 | fail = 1; | |
5317 | ||
5318 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5319 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5320 | saved_4F0 = 1; | |
5321 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5322 | saved_7F0 = 1; | |
1da177e4 LT |
5323 | |
5324 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5325 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5326 | fail = 1; |
5327 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5328 | fail = 1; | |
5329 | ||
ad4ebed0 | 5330 | if (ret_data != 0x012345) { |
26b7625c AM |
5331 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
5332 | "Data written %llx Data read %llx\n", | |
5333 | dev->name, (unsigned long long)0x12345, | |
5334 | (unsigned long long)ret_data); | |
1da177e4 | 5335 | fail = 1; |
ad4ebed0 | 5336 | } |
1da177e4 LT |
5337 | |
5338 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5339 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5340 | |
5341 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 5342 | if (sp->device_type == XFRAME_I_DEVICE) |
5343 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
5344 | fail = 1; | |
1da177e4 | 5345 | |
ad4ebed0 | 5346 | /* Test Write Request at offset 0x7f0 */ |
5347 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 5348 | fail = 1; |
ad4ebed0 | 5349 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
5350 | fail = 1; |
5351 | ||
ad4ebed0 | 5352 | if (ret_data != 0x012345) { |
26b7625c AM |
5353 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
5354 | "Data written %llx Data read %llx\n", | |
5355 | dev->name, (unsigned long long)0x12345, | |
5356 | (unsigned long long)ret_data); | |
1da177e4 | 5357 | fail = 1; |
ad4ebed0 | 5358 | } |
1da177e4 LT |
5359 | |
5360 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5361 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 5362 | |
ad4ebed0 | 5363 | if (sp->device_type == XFRAME_I_DEVICE) { |
5364 | /* Test Write Error at offset 0x80 */ | |
5365 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
5366 | fail = 1; | |
1da177e4 | 5367 | |
ad4ebed0 | 5368 | /* Test Write Error at offset 0xfc */ |
5369 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
5370 | fail = 1; | |
1da177e4 | 5371 | |
ad4ebed0 | 5372 | /* Test Write Error at offset 0x100 */ |
5373 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
5374 | fail = 1; | |
1da177e4 | 5375 | |
ad4ebed0 | 5376 | /* Test Write Error at offset 4ec */ |
5377 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
5378 | fail = 1; | |
5379 | } | |
5380 | ||
5381 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
5382 | if (saved_4F0) | |
5383 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
5384 | if (saved_7F0) | |
5385 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
5386 | |
5387 | *data = fail; | |
ad4ebed0 | 5388 | return fail; |
1da177e4 LT |
5389 | } |
5390 | ||
5391 | /** | |
5392 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 5393 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 5394 | * s2io_nic structure. |
20346722 | 5395 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
5396 | * the driver. |
5397 | * Description: | |
5398 | * This invokes the MemBist test of the card. We give around | |
5399 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 5400 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
5401 | * Return value: |
5402 | * 0 on success and -1 on failure. | |
5403 | */ | |
5404 | ||
1ee6dd77 | 5405 | static int s2io_bist_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5406 | { |
5407 | u8 bist = 0; | |
5408 | int cnt = 0, ret = -1; | |
5409 | ||
5410 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5411 | bist |= PCI_BIST_START; | |
5412 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
5413 | ||
5414 | while (cnt < 20) { | |
5415 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5416 | if (!(bist & PCI_BIST_START)) { | |
5417 | *data = (bist & PCI_BIST_CODE_MASK); | |
5418 | ret = 0; | |
5419 | break; | |
5420 | } | |
5421 | msleep(100); | |
5422 | cnt++; | |
5423 | } | |
5424 | ||
5425 | return ret; | |
5426 | } | |
5427 | ||
5428 | /** | |
20346722 K |
5429 | * s2io-link_test - verifies the link state of the nic |
5430 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5431 | * s2io_nic structure. |
5432 | * @data: variable that returns the result of each of the test conducted by | |
5433 | * the driver. | |
5434 | * Description: | |
20346722 | 5435 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
5436 | * argument 'data' appropriately. |
5437 | * Return value: | |
5438 | * 0 on success. | |
5439 | */ | |
5440 | ||
1ee6dd77 | 5441 | static int s2io_link_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5442 | { |
1ee6dd77 | 5443 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5444 | u64 val64; |
5445 | ||
5446 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 5447 | if(!(LINK_IS_UP(val64))) |
1da177e4 | 5448 | *data = 1; |
c92ca04b AR |
5449 | else |
5450 | *data = 0; | |
1da177e4 | 5451 | |
b41477f3 | 5452 | return *data; |
1da177e4 LT |
5453 | } |
5454 | ||
5455 | /** | |
20346722 K |
5456 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
5457 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 5458 | * s2io_nic structure. |
20346722 | 5459 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
5460 | * conducted by the driver. |
5461 | * Description: | |
20346722 | 5462 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
5463 | * access to the RldRam chip on the NIC. |
5464 | * Return value: | |
5465 | * 0 on success. | |
5466 | */ | |
5467 | ||
1ee6dd77 | 5468 | static int s2io_rldram_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5469 | { |
1ee6dd77 | 5470 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5471 | u64 val64; |
ad4ebed0 | 5472 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
5473 | |
5474 | val64 = readq(&bar0->adapter_control); | |
5475 | val64 &= ~ADAPTER_ECC_EN; | |
5476 | writeq(val64, &bar0->adapter_control); | |
5477 | ||
5478 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5479 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 5480 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
5481 | |
5482 | val64 = readq(&bar0->mc_rldram_mrs); | |
5483 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
5484 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5485 | ||
5486 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
5487 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5488 | ||
5489 | while (iteration < 2) { | |
5490 | val64 = 0x55555555aaaa0000ULL; | |
5491 | if (iteration == 1) { | |
5492 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5493 | } | |
5494 | writeq(val64, &bar0->mc_rldram_test_d0); | |
5495 | ||
5496 | val64 = 0xaaaa5a5555550000ULL; | |
5497 | if (iteration == 1) { | |
5498 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5499 | } | |
5500 | writeq(val64, &bar0->mc_rldram_test_d1); | |
5501 | ||
5502 | val64 = 0x55aaaaaaaa5a0000ULL; | |
5503 | if (iteration == 1) { | |
5504 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5505 | } | |
5506 | writeq(val64, &bar0->mc_rldram_test_d2); | |
5507 | ||
ad4ebed0 | 5508 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
5509 | writeq(val64, &bar0->mc_rldram_test_add); |
5510 | ||
ad4ebed0 | 5511 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE | |
5512 | MC_RLDRAM_TEST_GO; | |
5513 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5514 | |
5515 | for (cnt = 0; cnt < 5; cnt++) { | |
5516 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5517 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5518 | break; | |
5519 | msleep(200); | |
5520 | } | |
5521 | ||
5522 | if (cnt == 5) | |
5523 | break; | |
5524 | ||
ad4ebed0 | 5525 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
5526 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5527 | |
5528 | for (cnt = 0; cnt < 5; cnt++) { | |
5529 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5530 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5531 | break; | |
5532 | msleep(500); | |
5533 | } | |
5534 | ||
5535 | if (cnt == 5) | |
5536 | break; | |
5537 | ||
5538 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 5539 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
5540 | test_fail = 1; | |
1da177e4 LT |
5541 | |
5542 | iteration++; | |
5543 | } | |
5544 | ||
ad4ebed0 | 5545 | *data = test_fail; |
1da177e4 | 5546 | |
ad4ebed0 | 5547 | /* Bring the adapter out of test mode */ |
5548 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
5549 | ||
5550 | return test_fail; | |
1da177e4 LT |
5551 | } |
5552 | ||
5553 | /** | |
5554 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
5555 | * @sp : private member of the device structure, which is a pointer to the | |
5556 | * s2io_nic structure. | |
5557 | * @ethtest : pointer to a ethtool command specific structure that will be | |
5558 | * returned to the user. | |
20346722 | 5559 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
5560 | * conducted by the driver. |
5561 | * Description: | |
5562 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
5563 | * the health of the card. | |
5564 | * Return value: | |
5565 | * void | |
5566 | */ | |
5567 | ||
5568 | static void s2io_ethtool_test(struct net_device *dev, | |
5569 | struct ethtool_test *ethtest, | |
5570 | uint64_t * data) | |
5571 | { | |
1ee6dd77 | 5572 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5573 | int orig_state = netif_running(sp->dev); |
5574 | ||
5575 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
5576 | /* Offline Tests. */ | |
20346722 | 5577 | if (orig_state) |
1da177e4 | 5578 | s2io_close(sp->dev); |
1da177e4 LT |
5579 | |
5580 | if (s2io_register_test(sp, &data[0])) | |
5581 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5582 | ||
5583 | s2io_reset(sp); | |
1da177e4 LT |
5584 | |
5585 | if (s2io_rldram_test(sp, &data[3])) | |
5586 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5587 | ||
5588 | s2io_reset(sp); | |
1da177e4 LT |
5589 | |
5590 | if (s2io_eeprom_test(sp, &data[1])) | |
5591 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5592 | ||
5593 | if (s2io_bist_test(sp, &data[4])) | |
5594 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5595 | ||
5596 | if (orig_state) | |
5597 | s2io_open(sp->dev); | |
5598 | ||
5599 | data[2] = 0; | |
5600 | } else { | |
5601 | /* Online Tests. */ | |
5602 | if (!orig_state) { | |
5603 | DBG_PRINT(ERR_DBG, | |
5604 | "%s: is not up, cannot run test\n", | |
5605 | dev->name); | |
5606 | data[0] = -1; | |
5607 | data[1] = -1; | |
5608 | data[2] = -1; | |
5609 | data[3] = -1; | |
5610 | data[4] = -1; | |
5611 | } | |
5612 | ||
5613 | if (s2io_link_test(sp, &data[2])) | |
5614 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5615 | ||
5616 | data[0] = 0; | |
5617 | data[1] = 0; | |
5618 | data[3] = 0; | |
5619 | data[4] = 0; | |
5620 | } | |
5621 | } | |
5622 | ||
5623 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
5624 | struct ethtool_stats *estats, | |
5625 | u64 * tmp_stats) | |
5626 | { | |
5627 | int i = 0; | |
1ee6dd77 RB |
5628 | struct s2io_nic *sp = dev->priv; |
5629 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
1da177e4 | 5630 | |
7ba013ac | 5631 | s2io_updt_stats(sp); |
541ae68f K |
5632 | tmp_stats[i++] = |
5633 | (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 | | |
5634 | le32_to_cpu(stat_info->tmac_frms); | |
5635 | tmp_stats[i++] = | |
5636 | (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 | | |
5637 | le32_to_cpu(stat_info->tmac_data_octets); | |
1da177e4 | 5638 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms); |
541ae68f K |
5639 | tmp_stats[i++] = |
5640 | (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 | | |
5641 | le32_to_cpu(stat_info->tmac_mcst_frms); | |
5642 | tmp_stats[i++] = | |
5643 | (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 | | |
5644 | le32_to_cpu(stat_info->tmac_bcst_frms); | |
1da177e4 | 5645 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms); |
bd1034f0 AR |
5646 | tmp_stats[i++] = |
5647 | (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 | | |
5648 | le32_to_cpu(stat_info->tmac_ttl_octets); | |
5649 | tmp_stats[i++] = | |
5650 | (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 | | |
5651 | le32_to_cpu(stat_info->tmac_ucst_frms); | |
5652 | tmp_stats[i++] = | |
5653 | (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 | | |
5654 | le32_to_cpu(stat_info->tmac_nucst_frms); | |
541ae68f K |
5655 | tmp_stats[i++] = |
5656 | (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 | | |
5657 | le32_to_cpu(stat_info->tmac_any_err_frms); | |
bd1034f0 | 5658 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets); |
1da177e4 | 5659 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets); |
541ae68f K |
5660 | tmp_stats[i++] = |
5661 | (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 | | |
5662 | le32_to_cpu(stat_info->tmac_vld_ip); | |
5663 | tmp_stats[i++] = | |
5664 | (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 | | |
5665 | le32_to_cpu(stat_info->tmac_drop_ip); | |
5666 | tmp_stats[i++] = | |
5667 | (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 | | |
5668 | le32_to_cpu(stat_info->tmac_icmp); | |
5669 | tmp_stats[i++] = | |
5670 | (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 | | |
5671 | le32_to_cpu(stat_info->tmac_rst_tcp); | |
1da177e4 | 5672 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp); |
541ae68f K |
5673 | tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 | |
5674 | le32_to_cpu(stat_info->tmac_udp); | |
5675 | tmp_stats[i++] = | |
5676 | (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 | | |
5677 | le32_to_cpu(stat_info->rmac_vld_frms); | |
5678 | tmp_stats[i++] = | |
5679 | (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 | | |
5680 | le32_to_cpu(stat_info->rmac_data_octets); | |
1da177e4 LT |
5681 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms); |
5682 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms); | |
541ae68f K |
5683 | tmp_stats[i++] = |
5684 | (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 | | |
5685 | le32_to_cpu(stat_info->rmac_vld_mcst_frms); | |
5686 | tmp_stats[i++] = | |
5687 | (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 | | |
5688 | le32_to_cpu(stat_info->rmac_vld_bcst_frms); | |
1da177e4 | 5689 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms); |
bd1034f0 | 5690 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms); |
1da177e4 LT |
5691 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms); |
5692 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms); | |
bd1034f0 AR |
5693 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms); |
5694 | tmp_stats[i++] = | |
5695 | (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 | | |
5696 | le32_to_cpu(stat_info->rmac_ttl_octets); | |
5697 | tmp_stats[i++] = | |
5698 | (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow) | |
5699 | << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms); | |
5700 | tmp_stats[i++] = | |
5701 | (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow) | |
5702 | << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms); | |
541ae68f K |
5703 | tmp_stats[i++] = |
5704 | (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 | | |
5705 | le32_to_cpu(stat_info->rmac_discarded_frms); | |
bd1034f0 AR |
5706 | tmp_stats[i++] = |
5707 | (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow) | |
5708 | << 32 | le32_to_cpu(stat_info->rmac_drop_events); | |
5709 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets); | |
5710 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms); | |
541ae68f K |
5711 | tmp_stats[i++] = |
5712 | (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 | | |
5713 | le32_to_cpu(stat_info->rmac_usized_frms); | |
5714 | tmp_stats[i++] = | |
5715 | (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 | | |
5716 | le32_to_cpu(stat_info->rmac_osized_frms); | |
5717 | tmp_stats[i++] = | |
5718 | (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 | | |
5719 | le32_to_cpu(stat_info->rmac_frag_frms); | |
5720 | tmp_stats[i++] = | |
5721 | (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 | | |
5722 | le32_to_cpu(stat_info->rmac_jabber_frms); | |
bd1034f0 AR |
5723 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms); |
5724 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms); | |
5725 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms); | |
5726 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms); | |
5727 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms); | |
5728 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms); | |
5729 | tmp_stats[i++] = | |
5730 | (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 | | |
541ae68f | 5731 | le32_to_cpu(stat_info->rmac_ip); |
1da177e4 LT |
5732 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets); |
5733 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip); | |
bd1034f0 AR |
5734 | tmp_stats[i++] = |
5735 | (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 | | |
541ae68f | 5736 | le32_to_cpu(stat_info->rmac_drop_ip); |
bd1034f0 AR |
5737 | tmp_stats[i++] = |
5738 | (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 | | |
541ae68f | 5739 | le32_to_cpu(stat_info->rmac_icmp); |
1da177e4 | 5740 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp); |
bd1034f0 AR |
5741 | tmp_stats[i++] = |
5742 | (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 | | |
541ae68f K |
5743 | le32_to_cpu(stat_info->rmac_udp); |
5744 | tmp_stats[i++] = | |
5745 | (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 | | |
5746 | le32_to_cpu(stat_info->rmac_err_drp_udp); | |
bd1034f0 AR |
5747 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym); |
5748 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0); | |
5749 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1); | |
5750 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2); | |
5751 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3); | |
5752 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4); | |
5753 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5); | |
5754 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6); | |
5755 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7); | |
5756 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0); | |
5757 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1); | |
5758 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2); | |
5759 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3); | |
5760 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4); | |
5761 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5); | |
5762 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6); | |
5763 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7); | |
541ae68f K |
5764 | tmp_stats[i++] = |
5765 | (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 | | |
5766 | le32_to_cpu(stat_info->rmac_pause_cnt); | |
bd1034f0 AR |
5767 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt); |
5768 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt); | |
541ae68f K |
5769 | tmp_stats[i++] = |
5770 | (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 | | |
5771 | le32_to_cpu(stat_info->rmac_accepted_ip); | |
1da177e4 | 5772 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp); |
bd1034f0 AR |
5773 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt); |
5774 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt); | |
5775 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt); | |
5776 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt); | |
5777 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt); | |
5778 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt); | |
5779 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt); | |
5780 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt); | |
5781 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt); | |
5782 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt); | |
5783 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt); | |
5784 | tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt); | |
5785 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt); | |
5786 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt); | |
5787 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt); | |
5788 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt); | |
5789 | tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt); | |
5790 | tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt); | |
fa1f0cb3 SS |
5791 | |
5792 | /* Enhanced statistics exist only for Hercules */ | |
5793 | if(sp->device_type == XFRAME_II_DEVICE) { | |
5794 | tmp_stats[i++] = | |
5795 | le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms); | |
5796 | tmp_stats[i++] = | |
5797 | le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms); | |
5798 | tmp_stats[i++] = | |
5799 | le64_to_cpu(stat_info->rmac_ttl_8192_max_frms); | |
5800 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms); | |
5801 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms); | |
5802 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms); | |
5803 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms); | |
5804 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms); | |
5805 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard); | |
5806 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard); | |
5807 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard); | |
5808 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard); | |
5809 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard); | |
5810 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard); | |
5811 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard); | |
5812 | tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt); | |
5813 | } | |
5814 | ||
7ba013ac K |
5815 | tmp_stats[i++] = 0; |
5816 | tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs; | |
5817 | tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs; | |
bd1034f0 AR |
5818 | tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt; |
5819 | tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt; | |
5820 | tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt; | |
5821 | tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt; | |
5822 | tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt; | |
5823 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high; | |
5824 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low; | |
5825 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high; | |
5826 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low; | |
5827 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high; | |
5828 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low; | |
5829 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high; | |
5830 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low; | |
5831 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high; | |
5832 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low; | |
5833 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high; | |
5834 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low; | |
7d3d0439 RA |
5835 | tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt; |
5836 | tmp_stats[i++] = stat_info->sw_stat.sending_both; | |
5837 | tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts; | |
5838 | tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts; | |
fe931395 | 5839 | if (stat_info->sw_stat.num_aggregations) { |
bd1034f0 AR |
5840 | u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated; |
5841 | int count = 0; | |
6aa20a22 | 5842 | /* |
bd1034f0 AR |
5843 | * Since 64-bit divide does not work on all platforms, |
5844 | * do repeated subtraction. | |
5845 | */ | |
5846 | while (tmp >= stat_info->sw_stat.num_aggregations) { | |
5847 | tmp -= stat_info->sw_stat.num_aggregations; | |
5848 | count++; | |
5849 | } | |
5850 | tmp_stats[i++] = count; | |
fe931395 | 5851 | } |
bd1034f0 AR |
5852 | else |
5853 | tmp_stats[i++] = 0; | |
c53d4945 SH |
5854 | tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt; |
5855 | tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt; | |
491976b2 SH |
5856 | tmp_stats[i++] = stat_info->sw_stat.mem_allocated; |
5857 | tmp_stats[i++] = stat_info->sw_stat.mem_freed; | |
5858 | tmp_stats[i++] = stat_info->sw_stat.link_up_cnt; | |
5859 | tmp_stats[i++] = stat_info->sw_stat.link_down_cnt; | |
5860 | tmp_stats[i++] = stat_info->sw_stat.link_up_time; | |
5861 | tmp_stats[i++] = stat_info->sw_stat.link_down_time; | |
5862 | ||
5863 | tmp_stats[i++] = stat_info->sw_stat.tx_buf_abort_cnt; | |
5864 | tmp_stats[i++] = stat_info->sw_stat.tx_desc_abort_cnt; | |
5865 | tmp_stats[i++] = stat_info->sw_stat.tx_parity_err_cnt; | |
5866 | tmp_stats[i++] = stat_info->sw_stat.tx_link_loss_cnt; | |
5867 | tmp_stats[i++] = stat_info->sw_stat.tx_list_proc_err_cnt; | |
5868 | ||
5869 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_err_cnt; | |
5870 | tmp_stats[i++] = stat_info->sw_stat.rx_abort_cnt; | |
5871 | tmp_stats[i++] = stat_info->sw_stat.rx_parity_abort_cnt; | |
5872 | tmp_stats[i++] = stat_info->sw_stat.rx_rda_fail_cnt; | |
5873 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_prot_cnt; | |
5874 | tmp_stats[i++] = stat_info->sw_stat.rx_fcs_err_cnt; | |
5875 | tmp_stats[i++] = stat_info->sw_stat.rx_buf_size_err_cnt; | |
5876 | tmp_stats[i++] = stat_info->sw_stat.rx_rxd_corrupt_cnt; | |
5877 | tmp_stats[i++] = stat_info->sw_stat.rx_unkn_err_cnt; | |
1da177e4 LT |
5878 | } |
5879 | ||
ac1f60db | 5880 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 LT |
5881 | { |
5882 | return (XENA_REG_SPACE); | |
5883 | } | |
5884 | ||
5885 | ||
ac1f60db | 5886 | static u32 s2io_ethtool_get_rx_csum(struct net_device * dev) |
1da177e4 | 5887 | { |
1ee6dd77 | 5888 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5889 | |
5890 | return (sp->rx_csum); | |
5891 | } | |
ac1f60db AB |
5892 | |
5893 | static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
1da177e4 | 5894 | { |
1ee6dd77 | 5895 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5896 | |
5897 | if (data) | |
5898 | sp->rx_csum = 1; | |
5899 | else | |
5900 | sp->rx_csum = 0; | |
5901 | ||
5902 | return 0; | |
5903 | } | |
ac1f60db AB |
5904 | |
5905 | static int s2io_get_eeprom_len(struct net_device *dev) | |
1da177e4 LT |
5906 | { |
5907 | return (XENA_EEPROM_SPACE); | |
5908 | } | |
5909 | ||
ac1f60db | 5910 | static int s2io_ethtool_self_test_count(struct net_device *dev) |
1da177e4 LT |
5911 | { |
5912 | return (S2IO_TEST_LEN); | |
5913 | } | |
ac1f60db AB |
5914 | |
5915 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
5916 | u32 stringset, u8 * data) | |
1da177e4 | 5917 | { |
fa1f0cb3 SS |
5918 | int stat_size = 0; |
5919 | struct s2io_nic *sp = dev->priv; | |
5920 | ||
1da177e4 LT |
5921 | switch (stringset) { |
5922 | case ETH_SS_TEST: | |
5923 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
5924 | break; | |
5925 | case ETH_SS_STATS: | |
fa1f0cb3 SS |
5926 | stat_size = sizeof(ethtool_xena_stats_keys); |
5927 | memcpy(data, ðtool_xena_stats_keys,stat_size); | |
5928 | if(sp->device_type == XFRAME_II_DEVICE) { | |
5929 | memcpy(data + stat_size, | |
5930 | ðtool_enhanced_stats_keys, | |
5931 | sizeof(ethtool_enhanced_stats_keys)); | |
5932 | stat_size += sizeof(ethtool_enhanced_stats_keys); | |
5933 | } | |
5934 | ||
5935 | memcpy(data + stat_size, ðtool_driver_stats_keys, | |
5936 | sizeof(ethtool_driver_stats_keys)); | |
1da177e4 LT |
5937 | } |
5938 | } | |
1da177e4 LT |
5939 | static int s2io_ethtool_get_stats_count(struct net_device *dev) |
5940 | { | |
fa1f0cb3 SS |
5941 | struct s2io_nic *sp = dev->priv; |
5942 | int stat_count = 0; | |
5943 | switch(sp->device_type) { | |
5944 | case XFRAME_I_DEVICE: | |
5945 | stat_count = XFRAME_I_STAT_LEN; | |
5946 | break; | |
5947 | ||
5948 | case XFRAME_II_DEVICE: | |
5949 | stat_count = XFRAME_II_STAT_LEN; | |
5950 | break; | |
5951 | } | |
5952 | ||
5953 | return stat_count; | |
1da177e4 LT |
5954 | } |
5955 | ||
ac1f60db | 5956 | static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 LT |
5957 | { |
5958 | if (data) | |
5959 | dev->features |= NETIF_F_IP_CSUM; | |
5960 | else | |
5961 | dev->features &= ~NETIF_F_IP_CSUM; | |
5962 | ||
5963 | return 0; | |
5964 | } | |
5965 | ||
75c30b13 AR |
5966 | static u32 s2io_ethtool_op_get_tso(struct net_device *dev) |
5967 | { | |
5968 | return (dev->features & NETIF_F_TSO) != 0; | |
5969 | } | |
5970 | static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) | |
5971 | { | |
5972 | if (data) | |
5973 | dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); | |
5974 | else | |
5975 | dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
5976 | ||
5977 | return 0; | |
5978 | } | |
1da177e4 | 5979 | |
7282d491 | 5980 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
5981 | .get_settings = s2io_ethtool_gset, |
5982 | .set_settings = s2io_ethtool_sset, | |
5983 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
5984 | .get_regs_len = s2io_ethtool_get_regs_len, | |
5985 | .get_regs = s2io_ethtool_gregs, | |
5986 | .get_link = ethtool_op_get_link, | |
5987 | .get_eeprom_len = s2io_get_eeprom_len, | |
5988 | .get_eeprom = s2io_ethtool_geeprom, | |
5989 | .set_eeprom = s2io_ethtool_seeprom, | |
0cec35eb | 5990 | .get_ringparam = s2io_ethtool_gringparam, |
1da177e4 LT |
5991 | .get_pauseparam = s2io_ethtool_getpause_data, |
5992 | .set_pauseparam = s2io_ethtool_setpause_data, | |
5993 | .get_rx_csum = s2io_ethtool_get_rx_csum, | |
5994 | .set_rx_csum = s2io_ethtool_set_rx_csum, | |
5995 | .get_tx_csum = ethtool_op_get_tx_csum, | |
5996 | .set_tx_csum = s2io_ethtool_op_set_tx_csum, | |
5997 | .get_sg = ethtool_op_get_sg, | |
5998 | .set_sg = ethtool_op_set_sg, | |
75c30b13 AR |
5999 | .get_tso = s2io_ethtool_op_get_tso, |
6000 | .set_tso = s2io_ethtool_op_set_tso, | |
fed5eccd AR |
6001 | .get_ufo = ethtool_op_get_ufo, |
6002 | .set_ufo = ethtool_op_set_ufo, | |
1da177e4 LT |
6003 | .self_test_count = s2io_ethtool_self_test_count, |
6004 | .self_test = s2io_ethtool_test, | |
6005 | .get_strings = s2io_ethtool_get_strings, | |
6006 | .phys_id = s2io_ethtool_idnic, | |
6007 | .get_stats_count = s2io_ethtool_get_stats_count, | |
6008 | .get_ethtool_stats = s2io_get_ethtool_stats | |
6009 | }; | |
6010 | ||
6011 | /** | |
20346722 | 6012 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
6013 | * @dev : Device pointer. |
6014 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
6015 | * a proprietary structure used to pass information to the driver. | |
6016 | * @cmd : This is used to distinguish between the different commands that | |
6017 | * can be passed to the IOCTL functions. | |
6018 | * Description: | |
20346722 K |
6019 | * Currently there are no special functionality supported in IOCTL, hence |
6020 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
6021 | */ |
6022 | ||
ac1f60db | 6023 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
6024 | { |
6025 | return -EOPNOTSUPP; | |
6026 | } | |
6027 | ||
6028 | /** | |
6029 | * s2io_change_mtu - entry point to change MTU size for the device. | |
6030 | * @dev : device pointer. | |
6031 | * @new_mtu : the new MTU size for the device. | |
6032 | * Description: A driver entry point to change MTU size for the device. | |
6033 | * Before changing the MTU the device must be stopped. | |
6034 | * Return value: | |
6035 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
6036 | * file on failure. | |
6037 | */ | |
6038 | ||
ac1f60db | 6039 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 6040 | { |
1ee6dd77 | 6041 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6042 | |
6043 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
6044 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", | |
6045 | dev->name); | |
6046 | return -EPERM; | |
6047 | } | |
6048 | ||
1da177e4 | 6049 | dev->mtu = new_mtu; |
d8892c6e | 6050 | if (netif_running(dev)) { |
e6a8fee2 | 6051 | s2io_card_down(sp); |
d8892c6e K |
6052 | netif_stop_queue(dev); |
6053 | if (s2io_card_up(sp)) { | |
6054 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6055 | __FUNCTION__); | |
6056 | } | |
6057 | if (netif_queue_stopped(dev)) | |
6058 | netif_wake_queue(dev); | |
6059 | } else { /* Device is down */ | |
1ee6dd77 | 6060 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e K |
6061 | u64 val64 = new_mtu; |
6062 | ||
6063 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
6064 | } | |
1da177e4 LT |
6065 | |
6066 | return 0; | |
6067 | } | |
6068 | ||
6069 | /** | |
6070 | * s2io_tasklet - Bottom half of the ISR. | |
6071 | * @dev_adr : address of the device structure in dma_addr_t format. | |
6072 | * Description: | |
6073 | * This is the tasklet or the bottom half of the ISR. This is | |
20346722 | 6074 | * an extension of the ISR which is scheduled by the scheduler to be run |
1da177e4 | 6075 | * when the load on the CPU is low. All low priority tasks of the ISR can |
20346722 | 6076 | * be pushed into the tasklet. For now the tasklet is used only to |
1da177e4 LT |
6077 | * replenish the Rx buffers in the Rx buffer descriptors. |
6078 | * Return value: | |
6079 | * void. | |
6080 | */ | |
6081 | ||
6082 | static void s2io_tasklet(unsigned long dev_addr) | |
6083 | { | |
6084 | struct net_device *dev = (struct net_device *) dev_addr; | |
1ee6dd77 | 6085 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 6086 | int i, ret; |
1ee6dd77 | 6087 | struct mac_info *mac_control; |
1da177e4 LT |
6088 | struct config_param *config; |
6089 | ||
6090 | mac_control = &sp->mac_control; | |
6091 | config = &sp->config; | |
6092 | ||
6093 | if (!TASKLET_IN_USE) { | |
6094 | for (i = 0; i < config->rx_ring_num; i++) { | |
6095 | ret = fill_rx_buffers(sp, i); | |
6096 | if (ret == -ENOMEM) { | |
0c61ed5f | 6097 | DBG_PRINT(INFO_DBG, "%s: Out of ", |
1da177e4 | 6098 | dev->name); |
491976b2 | 6099 | DBG_PRINT(INFO_DBG, "memory in tasklet\n"); |
1da177e4 LT |
6100 | break; |
6101 | } else if (ret == -EFILL) { | |
0c61ed5f | 6102 | DBG_PRINT(INFO_DBG, |
1da177e4 LT |
6103 | "%s: Rx Ring %d is full\n", |
6104 | dev->name, i); | |
6105 | break; | |
6106 | } | |
6107 | } | |
6108 | clear_bit(0, (&sp->tasklet_status)); | |
6109 | } | |
6110 | } | |
6111 | ||
6112 | /** | |
6113 | * s2io_set_link - Set the LInk status | |
6114 | * @data: long pointer to device private structue | |
6115 | * Description: Sets the link status for the adapter | |
6116 | */ | |
6117 | ||
c4028958 | 6118 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 6119 | { |
1ee6dd77 | 6120 | struct s2io_nic *nic = container_of(work, struct s2io_nic, set_link_task); |
1da177e4 | 6121 | struct net_device *dev = nic->dev; |
1ee6dd77 | 6122 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
6123 | register u64 val64; |
6124 | u16 subid; | |
6125 | ||
22747d6b FR |
6126 | rtnl_lock(); |
6127 | ||
6128 | if (!netif_running(dev)) | |
6129 | goto out_unlock; | |
6130 | ||
1da177e4 LT |
6131 | if (test_and_set_bit(0, &(nic->link_state))) { |
6132 | /* The card is being reset, no point doing anything */ | |
22747d6b | 6133 | goto out_unlock; |
1da177e4 LT |
6134 | } |
6135 | ||
6136 | subid = nic->pdev->subsystem_device; | |
a371a07d K |
6137 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
6138 | /* | |
6139 | * Allow a small delay for the NICs self initiated | |
6140 | * cleanup to complete. | |
6141 | */ | |
6142 | msleep(100); | |
6143 | } | |
1da177e4 LT |
6144 | |
6145 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
6146 | if (LINK_IS_UP(val64)) { |
6147 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
6148 | if (verify_xena_quiescence(nic)) { | |
6149 | val64 = readq(&bar0->adapter_control); | |
6150 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 6151 | writeq(val64, &bar0->adapter_control); |
19a60522 SS |
6152 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
6153 | nic->device_type, subid)) { | |
6154 | val64 = readq(&bar0->gpio_control); | |
6155 | val64 |= GPIO_CTRL_GPIO_0; | |
6156 | writeq(val64, &bar0->gpio_control); | |
6157 | val64 = readq(&bar0->gpio_control); | |
6158 | } else { | |
6159 | val64 |= ADAPTER_LED_ON; | |
6160 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 6161 | } |
1da177e4 | 6162 | nic->device_enabled_once = TRUE; |
19a60522 SS |
6163 | } else { |
6164 | DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name); | |
6165 | DBG_PRINT(ERR_DBG, "device is not Quiescent\n"); | |
6166 | netif_stop_queue(dev); | |
1da177e4 | 6167 | } |
19a60522 SS |
6168 | } |
6169 | val64 = readq(&bar0->adapter_status); | |
6170 | if (!LINK_IS_UP(val64)) { | |
6171 | DBG_PRINT(ERR_DBG, "%s:", dev->name); | |
6172 | DBG_PRINT(ERR_DBG, " Link down after enabling "); | |
6173 | DBG_PRINT(ERR_DBG, "device \n"); | |
6174 | } else | |
1da177e4 | 6175 | s2io_link(nic, LINK_UP); |
19a60522 SS |
6176 | } else { |
6177 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
6178 | subid)) { | |
6179 | val64 = readq(&bar0->gpio_control); | |
6180 | val64 &= ~GPIO_CTRL_GPIO_0; | |
6181 | writeq(val64, &bar0->gpio_control); | |
6182 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 6183 | } |
19a60522 | 6184 | s2io_link(nic, LINK_DOWN); |
1da177e4 LT |
6185 | } |
6186 | clear_bit(0, &(nic->link_state)); | |
22747d6b FR |
6187 | |
6188 | out_unlock: | |
d8d70caf | 6189 | rtnl_unlock(); |
1da177e4 LT |
6190 | } |
6191 | ||
1ee6dd77 RB |
6192 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
6193 | struct buffAdd *ba, | |
6194 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
6195 | u64 *temp2, int size) | |
5d3213cc AR |
6196 | { |
6197 | struct net_device *dev = sp->dev; | |
5d3213cc AR |
6198 | |
6199 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6200 | struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; |
5d3213cc AR |
6201 | /* allocate skb */ |
6202 | if (*skb) { | |
6203 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
6204 | /* | |
6205 | * As Rx frame are not going to be processed, | |
6206 | * using same mapped address for the Rxd | |
6207 | * buffer pointer | |
6208 | */ | |
6d517a27 | 6209 | rxdp1->Buffer0_ptr = *temp0; |
5d3213cc AR |
6210 | } else { |
6211 | *skb = dev_alloc_skb(size); | |
6212 | if (!(*skb)) { | |
0c61ed5f | 6213 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
c53d4945 SH |
6214 | DBG_PRINT(INFO_DBG, "memory to allocate "); |
6215 | DBG_PRINT(INFO_DBG, "1 buf mode SKBs\n"); | |
6216 | sp->mac_control.stats_info->sw_stat. \ | |
6217 | mem_alloc_fail_cnt++; | |
5d3213cc AR |
6218 | return -ENOMEM ; |
6219 | } | |
491976b2 SH |
6220 | sp->mac_control.stats_info->sw_stat.mem_allocated |
6221 | += (*skb)->truesize; | |
5d3213cc AR |
6222 | /* storing the mapped addr in a temp variable |
6223 | * such it will be used for next rxd whose | |
6224 | * Host Control is NULL | |
6225 | */ | |
6d517a27 | 6226 | rxdp1->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6227 | pci_map_single( sp->pdev, (*skb)->data, |
6228 | size - NET_IP_ALIGN, | |
6229 | PCI_DMA_FROMDEVICE); | |
6230 | rxdp->Host_Control = (unsigned long) (*skb); | |
6231 | } | |
6232 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
6d517a27 | 6233 | struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; |
5d3213cc AR |
6234 | /* Two buffer Mode */ |
6235 | if (*skb) { | |
6d517a27 VP |
6236 | rxdp3->Buffer2_ptr = *temp2; |
6237 | rxdp3->Buffer0_ptr = *temp0; | |
6238 | rxdp3->Buffer1_ptr = *temp1; | |
5d3213cc AR |
6239 | } else { |
6240 | *skb = dev_alloc_skb(size); | |
2ceaac75 | 6241 | if (!(*skb)) { |
c53d4945 SH |
6242 | DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); |
6243 | DBG_PRINT(INFO_DBG, "memory to allocate "); | |
6244 | DBG_PRINT(INFO_DBG, "2 buf mode SKBs\n"); | |
6245 | sp->mac_control.stats_info->sw_stat. \ | |
6246 | mem_alloc_fail_cnt++; | |
2ceaac75 DR |
6247 | return -ENOMEM; |
6248 | } | |
491976b2 SH |
6249 | sp->mac_control.stats_info->sw_stat.mem_allocated |
6250 | += (*skb)->truesize; | |
6d517a27 | 6251 | rxdp3->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6252 | pci_map_single(sp->pdev, (*skb)->data, |
6253 | dev->mtu + 4, | |
6254 | PCI_DMA_FROMDEVICE); | |
6d517a27 | 6255 | rxdp3->Buffer0_ptr = *temp0 = |
5d3213cc AR |
6256 | pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, |
6257 | PCI_DMA_FROMDEVICE); | |
6258 | rxdp->Host_Control = (unsigned long) (*skb); | |
6259 | ||
6260 | /* Buffer-1 will be dummy buffer not used */ | |
6d517a27 | 6261 | rxdp3->Buffer1_ptr = *temp1 = |
5d3213cc | 6262 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
5d3213cc | 6263 | PCI_DMA_FROMDEVICE); |
5d3213cc AR |
6264 | } |
6265 | } | |
6266 | return 0; | |
6267 | } | |
1ee6dd77 RB |
6268 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6269 | int size) | |
5d3213cc AR |
6270 | { |
6271 | struct net_device *dev = sp->dev; | |
6272 | if (sp->rxd_mode == RXD_MODE_1) { | |
6273 | rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN); | |
6274 | } else if (sp->rxd_mode == RXD_MODE_3B) { | |
6275 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6276 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
6277 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); | |
5d3213cc AR |
6278 | } |
6279 | } | |
6280 | ||
1ee6dd77 | 6281 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6282 | { |
6283 | int i, j, k, blk_cnt = 0, size; | |
1ee6dd77 | 6284 | struct mac_info * mac_control = &sp->mac_control; |
5d3213cc AR |
6285 | struct config_param *config = &sp->config; |
6286 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 6287 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6288 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6289 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6290 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6291 | ||
6292 | /* Calculate the size based on ring mode */ | |
6293 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6294 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6295 | if (sp->rxd_mode == RXD_MODE_1) | |
6296 | size += NET_IP_ALIGN; | |
6297 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6298 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
5d3213cc AR |
6299 | |
6300 | for (i = 0; i < config->rx_ring_num; i++) { | |
6301 | blk_cnt = config->rx_cfg[i].num_rxd / | |
6302 | (rxd_count[sp->rxd_mode] +1); | |
6303 | ||
6304 | for (j = 0; j < blk_cnt; j++) { | |
6305 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
6306 | rxdp = mac_control->rings[i]. | |
6307 | rx_blocks[j].rxds[k].virt_addr; | |
6d517a27 | 6308 | if(sp->rxd_mode == RXD_MODE_3B) |
5d3213cc | 6309 | ba = &mac_control->rings[i].ba[j][k]; |
ac1f90d6 | 6310 | if (set_rxd_buffer_pointer(sp, rxdp, ba, |
5d3213cc AR |
6311 | &skb,(u64 *)&temp0_64, |
6312 | (u64 *)&temp1_64, | |
ac1f90d6 SS |
6313 | (u64 *)&temp2_64, |
6314 | size) == ENOMEM) { | |
6315 | return 0; | |
6316 | } | |
5d3213cc AR |
6317 | |
6318 | set_rxd_buffer_size(sp, rxdp, size); | |
6319 | wmb(); | |
6320 | /* flip the Ownership bit to Hardware */ | |
6321 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6322 | } | |
6323 | } | |
6324 | } | |
6325 | return 0; | |
6326 | ||
6327 | } | |
6328 | ||
1ee6dd77 | 6329 | static int s2io_add_isr(struct s2io_nic * sp) |
1da177e4 | 6330 | { |
e6a8fee2 | 6331 | int ret = 0; |
c92ca04b | 6332 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6333 | int err = 0; |
1da177e4 | 6334 | |
e6a8fee2 AR |
6335 | if (sp->intr_type == MSI) |
6336 | ret = s2io_enable_msi(sp); | |
6337 | else if (sp->intr_type == MSI_X) | |
6338 | ret = s2io_enable_msi_x(sp); | |
6339 | if (ret) { | |
6340 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
6341 | sp->intr_type = INTA; | |
20346722 | 6342 | } |
1da177e4 | 6343 | |
1ee6dd77 | 6344 | /* Store the values of the MSIX table in the struct s2io_nic structure */ |
e6a8fee2 | 6345 | store_xmsi_data(sp); |
c92ca04b | 6346 | |
e6a8fee2 AR |
6347 | /* After proper initialization of H/W, register ISR */ |
6348 | if (sp->intr_type == MSI) { | |
6349 | err = request_irq((int) sp->pdev->irq, s2io_msi_handle, | |
6350 | IRQF_SHARED, sp->name, dev); | |
6351 | if (err) { | |
6352 | pci_disable_msi(sp->pdev); | |
6353 | DBG_PRINT(ERR_DBG, "%s: MSI registration failed\n", | |
6354 | dev->name); | |
6355 | return -1; | |
6356 | } | |
6357 | } | |
6358 | if (sp->intr_type == MSI_X) { | |
fb6a825b | 6359 | int i, msix_tx_cnt=0,msix_rx_cnt=0; |
c92ca04b | 6360 | |
e6a8fee2 AR |
6361 | for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) { |
6362 | if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) { | |
6363 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", | |
6364 | dev->name, i); | |
6365 | err = request_irq(sp->entries[i].vector, | |
6366 | s2io_msix_fifo_handle, 0, sp->desc[i], | |
6367 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6368 | /* If either data or addr is zero print it */ |
6369 | if(!(sp->msix_info[i].addr && | |
6370 | sp->msix_info[i].data)) { | |
6371 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6372 | "Data:0x%lx\n",sp->desc[i], | |
6373 | (unsigned long long) | |
6374 | sp->msix_info[i].addr, | |
6375 | (unsigned long) | |
6376 | ntohl(sp->msix_info[i].data)); | |
6377 | } else { | |
6378 | msix_tx_cnt++; | |
6379 | } | |
e6a8fee2 AR |
6380 | } else { |
6381 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", | |
6382 | dev->name, i); | |
6383 | err = request_irq(sp->entries[i].vector, | |
6384 | s2io_msix_ring_handle, 0, sp->desc[i], | |
6385 | sp->s2io_entries[i].arg); | |
fb6a825b SS |
6386 | /* If either data or addr is zero print it */ |
6387 | if(!(sp->msix_info[i].addr && | |
6388 | sp->msix_info[i].data)) { | |
6389 | DBG_PRINT(ERR_DBG, "%s @ Addr:0x%llx" | |
6390 | "Data:0x%lx\n",sp->desc[i], | |
6391 | (unsigned long long) | |
6392 | sp->msix_info[i].addr, | |
6393 | (unsigned long) | |
6394 | ntohl(sp->msix_info[i].data)); | |
6395 | } else { | |
6396 | msix_rx_cnt++; | |
6397 | } | |
c92ca04b | 6398 | } |
e6a8fee2 AR |
6399 | if (err) { |
6400 | DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration " | |
6401 | "failed\n", dev->name, i); | |
6402 | DBG_PRINT(ERR_DBG, "Returned: %d\n", err); | |
6403 | return -1; | |
6404 | } | |
6405 | sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS; | |
6406 | } | |
fb6a825b SS |
6407 | printk("MSI-X-TX %d entries enabled\n",msix_tx_cnt); |
6408 | printk("MSI-X-RX %d entries enabled\n",msix_rx_cnt); | |
e6a8fee2 AR |
6409 | } |
6410 | if (sp->intr_type == INTA) { | |
6411 | err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED, | |
6412 | sp->name, dev); | |
6413 | if (err) { | |
6414 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
6415 | dev->name); | |
6416 | return -1; | |
6417 | } | |
6418 | } | |
6419 | return 0; | |
6420 | } | |
1ee6dd77 | 6421 | static void s2io_rem_isr(struct s2io_nic * sp) |
e6a8fee2 AR |
6422 | { |
6423 | int cnt = 0; | |
6424 | struct net_device *dev = sp->dev; | |
6425 | ||
6426 | if (sp->intr_type == MSI_X) { | |
6427 | int i; | |
6428 | u16 msi_control; | |
6429 | ||
6430 | for (i=1; (sp->s2io_entries[i].in_use == | |
6431 | MSIX_REGISTERED_SUCCESS); i++) { | |
6432 | int vector = sp->entries[i].vector; | |
6433 | void *arg = sp->s2io_entries[i].arg; | |
6434 | ||
6435 | free_irq(vector, arg); | |
6436 | } | |
6437 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
6438 | msi_control &= 0xFFFE; /* Disable MSI */ | |
6439 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
6440 | ||
6441 | pci_disable_msix(sp->pdev); | |
6442 | } else { | |
6443 | free_irq(sp->pdev->irq, dev); | |
6444 | if (sp->intr_type == MSI) { | |
6445 | u16 val; | |
6446 | ||
6447 | pci_disable_msi(sp->pdev); | |
6448 | pci_read_config_word(sp->pdev, 0x4c, &val); | |
6449 | val ^= 0x1; | |
6450 | pci_write_config_word(sp->pdev, 0x4c, val); | |
c92ca04b AR |
6451 | } |
6452 | } | |
6453 | /* Waiting till all Interrupt handlers are complete */ | |
6454 | cnt = 0; | |
6455 | do { | |
6456 | msleep(10); | |
6457 | if (!atomic_read(&sp->isr_cnt)) | |
6458 | break; | |
6459 | cnt++; | |
6460 | } while(cnt < 5); | |
e6a8fee2 AR |
6461 | } |
6462 | ||
d796fdb7 | 6463 | static void do_s2io_card_down(struct s2io_nic * sp, int do_io) |
e6a8fee2 AR |
6464 | { |
6465 | int cnt = 0; | |
1ee6dd77 | 6466 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 AR |
6467 | unsigned long flags; |
6468 | register u64 val64 = 0; | |
6469 | ||
6470 | del_timer_sync(&sp->alarm_timer); | |
6471 | /* If s2io_set_link task is executing, wait till it completes. */ | |
6472 | while (test_and_set_bit(0, &(sp->link_state))) { | |
6473 | msleep(50); | |
6474 | } | |
6475 | atomic_set(&sp->card_state, CARD_DOWN); | |
6476 | ||
6477 | /* disable Tx and Rx traffic on the NIC */ | |
d796fdb7 LV |
6478 | if (do_io) |
6479 | stop_nic(sp); | |
e6a8fee2 AR |
6480 | |
6481 | s2io_rem_isr(sp); | |
1da177e4 LT |
6482 | |
6483 | /* Kill tasklet. */ | |
6484 | tasklet_kill(&sp->task); | |
6485 | ||
6486 | /* Check if the device is Quiescent and then Reset the NIC */ | |
d796fdb7 | 6487 | while(do_io) { |
5d3213cc AR |
6488 | /* As per the HW requirement we need to replenish the |
6489 | * receive buffer to avoid the ring bump. Since there is | |
6490 | * no intention of processing the Rx frame at this pointwe are | |
6491 | * just settting the ownership bit of rxd in Each Rx | |
6492 | * ring to HW and set the appropriate buffer size | |
6493 | * based on the ring mode | |
6494 | */ | |
6495 | rxd_owner_bit_reset(sp); | |
6496 | ||
1da177e4 | 6497 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
6498 | if (verify_xena_quiescence(sp)) { |
6499 | if(verify_pcc_quiescent(sp, sp->device_enabled_once)) | |
1da177e4 LT |
6500 | break; |
6501 | } | |
6502 | ||
6503 | msleep(50); | |
6504 | cnt++; | |
6505 | if (cnt == 10) { | |
6506 | DBG_PRINT(ERR_DBG, | |
6507 | "s2io_close:Device not Quiescent "); | |
6508 | DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n", | |
6509 | (unsigned long long) val64); | |
6510 | break; | |
6511 | } | |
d796fdb7 LV |
6512 | } |
6513 | if (do_io) | |
6514 | s2io_reset(sp); | |
1da177e4 | 6515 | |
7ba013ac K |
6516 | spin_lock_irqsave(&sp->tx_lock, flags); |
6517 | /* Free all Tx buffers */ | |
1da177e4 | 6518 | free_tx_buffers(sp); |
7ba013ac K |
6519 | spin_unlock_irqrestore(&sp->tx_lock, flags); |
6520 | ||
6521 | /* Free all Rx buffers */ | |
6522 | spin_lock_irqsave(&sp->rx_lock, flags); | |
1da177e4 | 6523 | free_rx_buffers(sp); |
7ba013ac | 6524 | spin_unlock_irqrestore(&sp->rx_lock, flags); |
1da177e4 | 6525 | |
1da177e4 LT |
6526 | clear_bit(0, &(sp->link_state)); |
6527 | } | |
6528 | ||
d796fdb7 LV |
6529 | static void s2io_card_down(struct s2io_nic * sp) |
6530 | { | |
6531 | do_s2io_card_down(sp, 1); | |
6532 | } | |
6533 | ||
1ee6dd77 | 6534 | static int s2io_card_up(struct s2io_nic * sp) |
1da177e4 | 6535 | { |
cc6e7c44 | 6536 | int i, ret = 0; |
1ee6dd77 | 6537 | struct mac_info *mac_control; |
1da177e4 LT |
6538 | struct config_param *config; |
6539 | struct net_device *dev = (struct net_device *) sp->dev; | |
e6a8fee2 | 6540 | u16 interruptible; |
1da177e4 LT |
6541 | |
6542 | /* Initialize the H/W I/O registers */ | |
6543 | if (init_nic(sp) != 0) { | |
6544 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", | |
6545 | dev->name); | |
e6a8fee2 | 6546 | s2io_reset(sp); |
1da177e4 LT |
6547 | return -ENODEV; |
6548 | } | |
6549 | ||
20346722 K |
6550 | /* |
6551 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
6552 | * Rx ring and initializing buffers into 30 Rx blocks |
6553 | */ | |
6554 | mac_control = &sp->mac_control; | |
6555 | config = &sp->config; | |
6556 | ||
6557 | for (i = 0; i < config->rx_ring_num; i++) { | |
6558 | if ((ret = fill_rx_buffers(sp, i))) { | |
6559 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", | |
6560 | dev->name); | |
6561 | s2io_reset(sp); | |
6562 | free_rx_buffers(sp); | |
6563 | return -ENOMEM; | |
6564 | } | |
6565 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
6566 | atomic_read(&sp->rx_bufs_left[i])); | |
6567 | } | |
19a60522 SS |
6568 | /* Maintain the state prior to the open */ |
6569 | if (sp->promisc_flg) | |
6570 | sp->promisc_flg = 0; | |
6571 | if (sp->m_cast_flg) { | |
6572 | sp->m_cast_flg = 0; | |
6573 | sp->all_multi_pos= 0; | |
6574 | } | |
1da177e4 LT |
6575 | |
6576 | /* Setting its receive mode */ | |
6577 | s2io_set_multicast(dev); | |
6578 | ||
7d3d0439 | 6579 | if (sp->lro) { |
b41477f3 | 6580 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 RA |
6581 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
6582 | /* Check if we can use(if specified) user provided value */ | |
6583 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) | |
6584 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
6585 | } | |
6586 | ||
1da177e4 LT |
6587 | /* Enable Rx Traffic and interrupts on the NIC */ |
6588 | if (start_nic(sp)) { | |
6589 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 6590 | s2io_reset(sp); |
e6a8fee2 AR |
6591 | free_rx_buffers(sp); |
6592 | return -ENODEV; | |
6593 | } | |
6594 | ||
6595 | /* Add interrupt service routine */ | |
6596 | if (s2io_add_isr(sp) != 0) { | |
6597 | if (sp->intr_type == MSI_X) | |
6598 | s2io_rem_isr(sp); | |
6599 | s2io_reset(sp); | |
1da177e4 LT |
6600 | free_rx_buffers(sp); |
6601 | return -ENODEV; | |
6602 | } | |
6603 | ||
25fff88e K |
6604 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
6605 | ||
e6a8fee2 AR |
6606 | /* Enable tasklet for the device */ |
6607 | tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev); | |
6608 | ||
6609 | /* Enable select interrupts */ | |
6610 | if (sp->intr_type != INTA) | |
6611 | en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS); | |
6612 | else { | |
6613 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; | |
6614 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; | |
6615 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
6616 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
6617 | } | |
6618 | ||
6619 | ||
1da177e4 LT |
6620 | atomic_set(&sp->card_state, CARD_UP); |
6621 | return 0; | |
6622 | } | |
6623 | ||
20346722 | 6624 | /** |
1da177e4 LT |
6625 | * s2io_restart_nic - Resets the NIC. |
6626 | * @data : long pointer to the device private structure | |
6627 | * Description: | |
6628 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 6629 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
6630 | * the run time of the watch dog routine which is run holding a |
6631 | * spin lock. | |
6632 | */ | |
6633 | ||
c4028958 | 6634 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 6635 | { |
1ee6dd77 | 6636 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 6637 | struct net_device *dev = sp->dev; |
1da177e4 | 6638 | |
22747d6b FR |
6639 | rtnl_lock(); |
6640 | ||
6641 | if (!netif_running(dev)) | |
6642 | goto out_unlock; | |
6643 | ||
e6a8fee2 | 6644 | s2io_card_down(sp); |
1da177e4 LT |
6645 | if (s2io_card_up(sp)) { |
6646 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6647 | dev->name); | |
6648 | } | |
6649 | netif_wake_queue(dev); | |
6650 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", | |
6651 | dev->name); | |
22747d6b FR |
6652 | out_unlock: |
6653 | rtnl_unlock(); | |
1da177e4 LT |
6654 | } |
6655 | ||
20346722 K |
6656 | /** |
6657 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
6658 | * @dev : Pointer to net device structure |
6659 | * Description: | |
6660 | * This function is triggered if the Tx Queue is stopped | |
6661 | * for a pre-defined amount of time when the Interface is still up. | |
6662 | * If the Interface is jammed in such a situation, the hardware is | |
6663 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
6664 | * overcome any problem that might have been caused in the hardware. | |
6665 | * Return value: | |
6666 | * void | |
6667 | */ | |
6668 | ||
6669 | static void s2io_tx_watchdog(struct net_device *dev) | |
6670 | { | |
1ee6dd77 | 6671 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6672 | |
6673 | if (netif_carrier_ok(dev)) { | |
c53d4945 | 6674 | sp->mac_control.stats_info->sw_stat.watchdog_timer_cnt++; |
1da177e4 | 6675 | schedule_work(&sp->rst_timer_task); |
bd1034f0 | 6676 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
6677 | } |
6678 | } | |
6679 | ||
6680 | /** | |
6681 | * rx_osm_handler - To perform some OS related operations on SKB. | |
6682 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
6683 | * @skb : the socket buffer pointer. | |
6684 | * @len : length of the packet | |
6685 | * @cksum : FCS checksum of the frame. | |
6686 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 6687 | * Description: |
b41477f3 | 6688 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
6689 | * some OS related operations on the SKB before passing it to the upper |
6690 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
6691 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
6692 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
6693 | * packet error count, frees the SKB and returns error. | |
6694 | * Return value: | |
6695 | * SUCCESS on success and -1 on failure. | |
6696 | */ | |
1ee6dd77 | 6697 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 6698 | { |
1ee6dd77 | 6699 | struct s2io_nic *sp = ring_data->nic; |
1da177e4 | 6700 | struct net_device *dev = (struct net_device *) sp->dev; |
20346722 K |
6701 | struct sk_buff *skb = (struct sk_buff *) |
6702 | ((unsigned long) rxdp->Host_Control); | |
6703 | int ring_no = ring_data->ring_no; | |
1da177e4 | 6704 | u16 l3_csum, l4_csum; |
863c11a9 | 6705 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
1ee6dd77 | 6706 | struct lro *lro; |
f9046eb3 | 6707 | u8 err_mask; |
da6971d8 | 6708 | |
20346722 | 6709 | skb->dev = dev; |
c92ca04b | 6710 | |
863c11a9 | 6711 | if (err) { |
bd1034f0 AR |
6712 | /* Check for parity error */ |
6713 | if (err & 0x1) { | |
6714 | sp->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
6715 | } | |
f9046eb3 OH |
6716 | err_mask = err >> 48; |
6717 | switch(err_mask) { | |
491976b2 SH |
6718 | case 1: |
6719 | sp->mac_control.stats_info->sw_stat. | |
6720 | rx_parity_err_cnt++; | |
6721 | break; | |
6722 | ||
6723 | case 2: | |
6724 | sp->mac_control.stats_info->sw_stat. | |
6725 | rx_abort_cnt++; | |
6726 | break; | |
6727 | ||
6728 | case 3: | |
6729 | sp->mac_control.stats_info->sw_stat. | |
6730 | rx_parity_abort_cnt++; | |
6731 | break; | |
6732 | ||
6733 | case 4: | |
6734 | sp->mac_control.stats_info->sw_stat. | |
6735 | rx_rda_fail_cnt++; | |
6736 | break; | |
6737 | ||
6738 | case 5: | |
6739 | sp->mac_control.stats_info->sw_stat. | |
6740 | rx_unkn_prot_cnt++; | |
6741 | break; | |
6742 | ||
6743 | case 6: | |
6744 | sp->mac_control.stats_info->sw_stat. | |
6745 | rx_fcs_err_cnt++; | |
6746 | break; | |
bd1034f0 | 6747 | |
491976b2 SH |
6748 | case 7: |
6749 | sp->mac_control.stats_info->sw_stat. | |
6750 | rx_buf_size_err_cnt++; | |
6751 | break; | |
6752 | ||
6753 | case 8: | |
6754 | sp->mac_control.stats_info->sw_stat. | |
6755 | rx_rxd_corrupt_cnt++; | |
6756 | break; | |
6757 | ||
6758 | case 15: | |
6759 | sp->mac_control.stats_info->sw_stat. | |
6760 | rx_unkn_err_cnt++; | |
6761 | break; | |
6762 | } | |
863c11a9 AR |
6763 | /* |
6764 | * Drop the packet if bad transfer code. Exception being | |
6765 | * 0x5, which could be due to unsupported IPv6 extension header. | |
6766 | * In this case, we let stack handle the packet. | |
6767 | * Note that in this case, since checksum will be incorrect, | |
6768 | * stack will validate the same. | |
6769 | */ | |
f9046eb3 OH |
6770 | if (err_mask != 0x5) { |
6771 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n", | |
6772 | dev->name, err_mask); | |
863c11a9 | 6773 | sp->stats.rx_crc_errors++; |
491976b2 SH |
6774 | sp->mac_control.stats_info->sw_stat.mem_freed |
6775 | += skb->truesize; | |
863c11a9 AR |
6776 | dev_kfree_skb(skb); |
6777 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
6778 | rxdp->Host_Control = 0; | |
6779 | return 0; | |
6780 | } | |
20346722 | 6781 | } |
1da177e4 | 6782 | |
20346722 K |
6783 | /* Updating statistics */ |
6784 | rxdp->Host_Control = 0; | |
da6971d8 AR |
6785 | if (sp->rxd_mode == RXD_MODE_1) { |
6786 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 6787 | |
da6971d8 AR |
6788 | sp->stats.rx_bytes += len; |
6789 | skb_put(skb, len); | |
6790 | ||
6d517a27 | 6791 | } else if (sp->rxd_mode == RXD_MODE_3B) { |
da6971d8 AR |
6792 | int get_block = ring_data->rx_curr_get_info.block_index; |
6793 | int get_off = ring_data->rx_curr_get_info.offset; | |
6794 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
6795 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
6796 | unsigned char *buff = skb_push(skb, buf0_len); | |
6797 | ||
1ee6dd77 | 6798 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 AR |
6799 | sp->stats.rx_bytes += buf0_len + buf2_len; |
6800 | memcpy(buff, ba->ba_0, buf0_len); | |
6d517a27 | 6801 | skb_put(skb, buf2_len); |
da6971d8 | 6802 | } |
20346722 | 6803 | |
7d3d0439 RA |
6804 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || |
6805 | (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
20346722 K |
6806 | (sp->rx_csum)) { |
6807 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); | |
1da177e4 LT |
6808 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
6809 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 6810 | /* |
1da177e4 LT |
6811 | * NIC verifies if the Checksum of the received |
6812 | * frame is Ok or not and accordingly returns | |
6813 | * a flag in the RxD. | |
6814 | */ | |
6815 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
7d3d0439 RA |
6816 | if (sp->lro) { |
6817 | u32 tcp_len; | |
6818 | u8 *tcp; | |
6819 | int ret = 0; | |
6820 | ||
6821 | ret = s2io_club_tcp_session(skb->data, &tcp, | |
6822 | &tcp_len, &lro, rxdp, sp); | |
6823 | switch (ret) { | |
6824 | case 3: /* Begin anew */ | |
6825 | lro->parent = skb; | |
6826 | goto aggregate; | |
6827 | case 1: /* Aggregate */ | |
6828 | { | |
6829 | lro_append_pkt(sp, lro, | |
6830 | skb, tcp_len); | |
6831 | goto aggregate; | |
6832 | } | |
6833 | case 4: /* Flush session */ | |
6834 | { | |
6835 | lro_append_pkt(sp, lro, | |
6836 | skb, tcp_len); | |
6837 | queue_rx_frame(lro->parent); | |
6838 | clear_lro_session(lro); | |
6839 | sp->mac_control.stats_info-> | |
6840 | sw_stat.flush_max_pkts++; | |
6841 | goto aggregate; | |
6842 | } | |
6843 | case 2: /* Flush both */ | |
6844 | lro->parent->data_len = | |
6845 | lro->frags_len; | |
6846 | sp->mac_control.stats_info-> | |
6847 | sw_stat.sending_both++; | |
6848 | queue_rx_frame(lro->parent); | |
6849 | clear_lro_session(lro); | |
6850 | goto send_up; | |
6851 | case 0: /* sessions exceeded */ | |
c92ca04b AR |
6852 | case -1: /* non-TCP or not |
6853 | * L2 aggregatable | |
6854 | */ | |
7d3d0439 RA |
6855 | case 5: /* |
6856 | * First pkt in session not | |
6857 | * L3/L4 aggregatable | |
6858 | */ | |
6859 | break; | |
6860 | default: | |
6861 | DBG_PRINT(ERR_DBG, | |
6862 | "%s: Samadhana!!\n", | |
6863 | __FUNCTION__); | |
6864 | BUG(); | |
6865 | } | |
6866 | } | |
1da177e4 | 6867 | } else { |
20346722 K |
6868 | /* |
6869 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
6870 | * upper layers deal with it. |
6871 | */ | |
6872 | skb->ip_summed = CHECKSUM_NONE; | |
6873 | } | |
6874 | } else { | |
6875 | skb->ip_summed = CHECKSUM_NONE; | |
6876 | } | |
491976b2 | 6877 | sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize; |
7d3d0439 RA |
6878 | if (!sp->lro) { |
6879 | skb->protocol = eth_type_trans(skb, dev); | |
926930b2 SS |
6880 | if ((sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2) && |
6881 | vlan_strip_flag)) { | |
7d3d0439 | 6882 | /* Queueing the vlan frame to the upper layer */ |
db874e65 SS |
6883 | if (napi) |
6884 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, | |
6885 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
6886 | else | |
6887 | vlan_hwaccel_rx(skb, sp->vlgrp, | |
6888 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
7d3d0439 | 6889 | } else { |
db874e65 SS |
6890 | if (napi) |
6891 | netif_receive_skb(skb); | |
6892 | else | |
6893 | netif_rx(skb); | |
7d3d0439 | 6894 | } |
7d3d0439 RA |
6895 | } else { |
6896 | send_up: | |
6897 | queue_rx_frame(skb); | |
6aa20a22 | 6898 | } |
1da177e4 | 6899 | dev->last_rx = jiffies; |
7d3d0439 | 6900 | aggregate: |
1da177e4 | 6901 | atomic_dec(&sp->rx_bufs_left[ring_no]); |
1da177e4 LT |
6902 | return SUCCESS; |
6903 | } | |
6904 | ||
6905 | /** | |
6906 | * s2io_link - stops/starts the Tx queue. | |
6907 | * @sp : private member of the device structure, which is a pointer to the | |
6908 | * s2io_nic structure. | |
6909 | * @link : inidicates whether link is UP/DOWN. | |
6910 | * Description: | |
6911 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 K |
6912 | * status of the NIC is is down or up. This is called by the Alarm |
6913 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
6914 | * Return value: |
6915 | * void. | |
6916 | */ | |
6917 | ||
1ee6dd77 | 6918 | static void s2io_link(struct s2io_nic * sp, int link) |
1da177e4 LT |
6919 | { |
6920 | struct net_device *dev = (struct net_device *) sp->dev; | |
6921 | ||
6922 | if (link != sp->last_link_state) { | |
6923 | if (link == LINK_DOWN) { | |
6924 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
6925 | netif_carrier_off(dev); | |
491976b2 SH |
6926 | if(sp->mac_control.stats_info->sw_stat.link_up_cnt) |
6927 | sp->mac_control.stats_info->sw_stat.link_up_time = | |
6928 | jiffies - sp->start_time; | |
6929 | sp->mac_control.stats_info->sw_stat.link_down_cnt++; | |
1da177e4 LT |
6930 | } else { |
6931 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
491976b2 SH |
6932 | if (sp->mac_control.stats_info->sw_stat.link_down_cnt) |
6933 | sp->mac_control.stats_info->sw_stat.link_down_time = | |
6934 | jiffies - sp->start_time; | |
6935 | sp->mac_control.stats_info->sw_stat.link_up_cnt++; | |
1da177e4 LT |
6936 | netif_carrier_on(dev); |
6937 | } | |
6938 | } | |
6939 | sp->last_link_state = link; | |
491976b2 | 6940 | sp->start_time = jiffies; |
1da177e4 LT |
6941 | } |
6942 | ||
20346722 K |
6943 | /** |
6944 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
6945 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
6946 | * s2io_nic structure. |
6947 | * Description: | |
6948 | * This function initializes a few of the PCI and PCI-X configuration registers | |
6949 | * with recommended values. | |
6950 | * Return value: | |
6951 | * void | |
6952 | */ | |
6953 | ||
1ee6dd77 | 6954 | static void s2io_init_pci(struct s2io_nic * sp) |
1da177e4 | 6955 | { |
20346722 | 6956 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
6957 | |
6958 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
6959 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 6960 | &(pcix_cmd)); |
1da177e4 | 6961 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6962 | (pcix_cmd | 1)); |
1da177e4 | 6963 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6964 | &(pcix_cmd)); |
1da177e4 LT |
6965 | |
6966 | /* Set the PErr Response bit in PCI command register. */ | |
6967 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
6968 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
6969 | (pci_cmd | PCI_COMMAND_PARITY)); | |
6970 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
6971 | } |
6972 | ||
9dc737a7 AR |
6973 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) |
6974 | { | |
6975 | if ( tx_fifo_num > 8) { | |
6976 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not " | |
6977 | "supported\n"); | |
6978 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n"); | |
6979 | tx_fifo_num = 8; | |
6980 | } | |
6981 | if ( rx_ring_num > 8) { | |
6982 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not " | |
6983 | "supported\n"); | |
6984 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n"); | |
6985 | rx_ring_num = 8; | |
6986 | } | |
db874e65 SS |
6987 | if (*dev_intr_type != INTA) |
6988 | napi = 0; | |
6989 | ||
9dc737a7 AR |
6990 | #ifndef CONFIG_PCI_MSI |
6991 | if (*dev_intr_type != INTA) { | |
6992 | DBG_PRINT(ERR_DBG, "s2io: This kernel does not support" | |
6993 | "MSI/MSI-X. Defaulting to INTA\n"); | |
6994 | *dev_intr_type = INTA; | |
6995 | } | |
6996 | #else | |
6997 | if (*dev_intr_type > MSI_X) { | |
6998 | DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " | |
6999 | "Defaulting to INTA\n"); | |
7000 | *dev_intr_type = INTA; | |
7001 | } | |
7002 | #endif | |
7003 | if ((*dev_intr_type == MSI_X) && | |
7004 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && | |
7005 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
6aa20a22 | 7006 | DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. " |
9dc737a7 AR |
7007 | "Defaulting to INTA\n"); |
7008 | *dev_intr_type = INTA; | |
7009 | } | |
fb6a825b | 7010 | |
6d517a27 | 7011 | if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { |
9dc737a7 | 7012 | DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); |
6d517a27 VP |
7013 | DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n"); |
7014 | rx_ring_mode = 1; | |
9dc737a7 AR |
7015 | } |
7016 | return SUCCESS; | |
7017 | } | |
7018 | ||
9fc93a41 SS |
7019 | /** |
7020 | * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS | |
7021 | * or Traffic class respectively. | |
7022 | * @nic: device peivate variable | |
7023 | * Description: The function configures the receive steering to | |
7024 | * desired receive ring. | |
7025 | * Return Value: SUCCESS on success and | |
7026 | * '-1' on failure (endian settings incorrect). | |
7027 | */ | |
7028 | static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring) | |
7029 | { | |
7030 | struct XENA_dev_config __iomem *bar0 = nic->bar0; | |
7031 | register u64 val64 = 0; | |
7032 | ||
7033 | if (ds_codepoint > 63) | |
7034 | return FAILURE; | |
7035 | ||
7036 | val64 = RTS_DS_MEM_DATA(ring); | |
7037 | writeq(val64, &bar0->rts_ds_mem_data); | |
7038 | ||
7039 | val64 = RTS_DS_MEM_CTRL_WE | | |
7040 | RTS_DS_MEM_CTRL_STROBE_NEW_CMD | | |
7041 | RTS_DS_MEM_CTRL_OFFSET(ds_codepoint); | |
7042 | ||
7043 | writeq(val64, &bar0->rts_ds_mem_ctrl); | |
7044 | ||
7045 | return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl, | |
7046 | RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED, | |
7047 | S2IO_BIT_RESET); | |
7048 | } | |
7049 | ||
1da177e4 | 7050 | /** |
20346722 | 7051 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
7052 | * @pdev : structure containing the PCI related information of the device. |
7053 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
7054 | * Description: | |
7055 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 K |
7056 | * All OS related initialization including memory and device structure and |
7057 | * initlaization of the device private variable is done. Also the swapper | |
7058 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
7059 | * registers of the device. |
7060 | * Return value: | |
7061 | * returns 0 on success and negative on failure. | |
7062 | */ | |
7063 | ||
7064 | static int __devinit | |
7065 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
7066 | { | |
1ee6dd77 | 7067 | struct s2io_nic *sp; |
1da177e4 | 7068 | struct net_device *dev; |
1da177e4 LT |
7069 | int i, j, ret; |
7070 | int dma_flag = FALSE; | |
7071 | u32 mac_up, mac_down; | |
7072 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 7073 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 7074 | u16 subid; |
1ee6dd77 | 7075 | struct mac_info *mac_control; |
1da177e4 | 7076 | struct config_param *config; |
541ae68f | 7077 | int mode; |
cc6e7c44 | 7078 | u8 dev_intr_type = intr_type; |
1da177e4 | 7079 | |
9dc737a7 AR |
7080 | if ((ret = s2io_verify_parm(pdev, &dev_intr_type))) |
7081 | return ret; | |
1da177e4 LT |
7082 | |
7083 | if ((ret = pci_enable_device(pdev))) { | |
7084 | DBG_PRINT(ERR_DBG, | |
7085 | "s2io_init_nic: pci_enable_device failed\n"); | |
7086 | return ret; | |
7087 | } | |
7088 | ||
1e7f0bd8 | 7089 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7090 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n"); |
7091 | dma_flag = TRUE; | |
1da177e4 | 7092 | if (pci_set_consistent_dma_mask |
1e7f0bd8 | 7093 | (pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
7094 | DBG_PRINT(ERR_DBG, |
7095 | "Unable to obtain 64bit DMA for \ | |
7096 | consistent allocations\n"); | |
7097 | pci_disable_device(pdev); | |
7098 | return -ENOMEM; | |
7099 | } | |
1e7f0bd8 | 7100 | } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
1da177e4 LT |
7101 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n"); |
7102 | } else { | |
7103 | pci_disable_device(pdev); | |
7104 | return -ENOMEM; | |
7105 | } | |
cc6e7c44 RA |
7106 | if (dev_intr_type != MSI_X) { |
7107 | if (pci_request_regions(pdev, s2io_driver_name)) { | |
b41477f3 AR |
7108 | DBG_PRINT(ERR_DBG, "Request Regions failed\n"); |
7109 | pci_disable_device(pdev); | |
cc6e7c44 RA |
7110 | return -ENODEV; |
7111 | } | |
7112 | } | |
7113 | else { | |
7114 | if (!(request_mem_region(pci_resource_start(pdev, 0), | |
7115 | pci_resource_len(pdev, 0), s2io_driver_name))) { | |
7116 | DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n"); | |
7117 | pci_disable_device(pdev); | |
7118 | return -ENODEV; | |
7119 | } | |
7120 | if (!(request_mem_region(pci_resource_start(pdev, 2), | |
7121 | pci_resource_len(pdev, 2), s2io_driver_name))) { | |
7122 | DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n"); | |
7123 | release_mem_region(pci_resource_start(pdev, 0), | |
7124 | pci_resource_len(pdev, 0)); | |
7125 | pci_disable_device(pdev); | |
7126 | return -ENODEV; | |
7127 | } | |
1da177e4 LT |
7128 | } |
7129 | ||
1ee6dd77 | 7130 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 LT |
7131 | if (dev == NULL) { |
7132 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
7133 | pci_disable_device(pdev); | |
7134 | pci_release_regions(pdev); | |
7135 | return -ENODEV; | |
7136 | } | |
7137 | ||
7138 | pci_set_master(pdev); | |
7139 | pci_set_drvdata(pdev, dev); | |
7140 | SET_MODULE_OWNER(dev); | |
7141 | SET_NETDEV_DEV(dev, &pdev->dev); | |
7142 | ||
7143 | /* Private member variable initialized to s2io NIC structure */ | |
7144 | sp = dev->priv; | |
1ee6dd77 | 7145 | memset(sp, 0, sizeof(struct s2io_nic)); |
1da177e4 LT |
7146 | sp->dev = dev; |
7147 | sp->pdev = pdev; | |
1da177e4 | 7148 | sp->high_dma_flag = dma_flag; |
1da177e4 | 7149 | sp->device_enabled_once = FALSE; |
da6971d8 AR |
7150 | if (rx_ring_mode == 1) |
7151 | sp->rxd_mode = RXD_MODE_1; | |
7152 | if (rx_ring_mode == 2) | |
7153 | sp->rxd_mode = RXD_MODE_3B; | |
da6971d8 | 7154 | |
cc6e7c44 | 7155 | sp->intr_type = dev_intr_type; |
1da177e4 | 7156 | |
541ae68f K |
7157 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
7158 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) | |
7159 | sp->device_type = XFRAME_II_DEVICE; | |
7160 | else | |
7161 | sp->device_type = XFRAME_I_DEVICE; | |
7162 | ||
7d3d0439 | 7163 | sp->lro = lro; |
6aa20a22 | 7164 | |
1da177e4 LT |
7165 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
7166 | s2io_init_pci(sp); | |
7167 | ||
20346722 | 7168 | /* |
1da177e4 | 7169 | * Setting the device configuration parameters. |
20346722 K |
7170 | * Most of these parameters can be specified by the user during |
7171 | * module insertion as they are module loadable parameters. If | |
7172 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
7173 | * are initialized with default values. |
7174 | */ | |
7175 | mac_control = &sp->mac_control; | |
7176 | config = &sp->config; | |
7177 | ||
7178 | /* Tx side parameters. */ | |
1da177e4 LT |
7179 | config->tx_fifo_num = tx_fifo_num; |
7180 | for (i = 0; i < MAX_TX_FIFOS; i++) { | |
7181 | config->tx_cfg[i].fifo_len = tx_fifo_len[i]; | |
7182 | config->tx_cfg[i].fifo_priority = i; | |
7183 | } | |
7184 | ||
20346722 K |
7185 | /* mapping the QoS priority to the configured fifos */ |
7186 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
7187 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i]; | |
7188 | ||
1da177e4 LT |
7189 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
7190 | for (i = 0; i < config->tx_fifo_num; i++) { | |
7191 | config->tx_cfg[i].f_no_snoop = | |
7192 | (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
7193 | if (config->tx_cfg[i].fifo_len < 65) { | |
7194 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; | |
7195 | break; | |
7196 | } | |
7197 | } | |
fed5eccd AR |
7198 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
7199 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
7200 | |
7201 | /* Rx side parameters. */ | |
1da177e4 LT |
7202 | config->rx_ring_num = rx_ring_num; |
7203 | for (i = 0; i < MAX_RX_RINGS; i++) { | |
7204 | config->rx_cfg[i].num_rxd = rx_ring_sz[i] * | |
da6971d8 | 7205 | (rxd_count[sp->rxd_mode] + 1); |
1da177e4 LT |
7206 | config->rx_cfg[i].ring_priority = i; |
7207 | } | |
7208 | ||
7209 | for (i = 0; i < rx_ring_num; i++) { | |
7210 | config->rx_cfg[i].ring_org = RING_ORG_BUFF1; | |
7211 | config->rx_cfg[i].f_no_snoop = | |
7212 | (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
7213 | } | |
7214 | ||
7215 | /* Setting Mac Control parameters */ | |
7216 | mac_control->rmac_pause_time = rmac_pause_time; | |
7217 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
7218 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
7219 | ||
7220 | ||
7221 | /* Initialize Ring buffer parameters. */ | |
7222 | for (i = 0; i < config->rx_ring_num; i++) | |
7223 | atomic_set(&sp->rx_bufs_left[i], 0); | |
7224 | ||
7ba013ac K |
7225 | /* Initialize the number of ISRs currently running */ |
7226 | atomic_set(&sp->isr_cnt, 0); | |
7227 | ||
1da177e4 LT |
7228 | /* initialize the shared memory used by the NIC and the host */ |
7229 | if (init_shared_mem(sp)) { | |
7230 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", | |
b41477f3 | 7231 | dev->name); |
1da177e4 LT |
7232 | ret = -ENOMEM; |
7233 | goto mem_alloc_failed; | |
7234 | } | |
7235 | ||
7236 | sp->bar0 = ioremap(pci_resource_start(pdev, 0), | |
7237 | pci_resource_len(pdev, 0)); | |
7238 | if (!sp->bar0) { | |
19a60522 | 7239 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
7240 | dev->name); |
7241 | ret = -ENOMEM; | |
7242 | goto bar0_remap_failed; | |
7243 | } | |
7244 | ||
7245 | sp->bar1 = ioremap(pci_resource_start(pdev, 2), | |
7246 | pci_resource_len(pdev, 2)); | |
7247 | if (!sp->bar1) { | |
19a60522 | 7248 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
7249 | dev->name); |
7250 | ret = -ENOMEM; | |
7251 | goto bar1_remap_failed; | |
7252 | } | |
7253 | ||
7254 | dev->irq = pdev->irq; | |
7255 | dev->base_addr = (unsigned long) sp->bar0; | |
7256 | ||
7257 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
7258 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
1ee6dd77 | 7259 | mac_control->tx_FIFO_start[j] = (struct TxFIFO_element __iomem *) |
1da177e4 LT |
7260 | (sp->bar1 + (j * 0x00020000)); |
7261 | } | |
7262 | ||
7263 | /* Driver entry points */ | |
7264 | dev->open = &s2io_open; | |
7265 | dev->stop = &s2io_close; | |
7266 | dev->hard_start_xmit = &s2io_xmit; | |
7267 | dev->get_stats = &s2io_get_stats; | |
7268 | dev->set_multicast_list = &s2io_set_multicast; | |
7269 | dev->do_ioctl = &s2io_ioctl; | |
7270 | dev->change_mtu = &s2io_change_mtu; | |
7271 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
be3a6b02 K |
7272 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
7273 | dev->vlan_rx_register = s2io_vlan_rx_register; | |
20346722 | 7274 | |
1da177e4 LT |
7275 | /* |
7276 | * will use eth_mac_addr() for dev->set_mac_address | |
7277 | * mac address will be set every time dev->open() is called | |
7278 | */ | |
1da177e4 | 7279 | dev->poll = s2io_poll; |
20346722 | 7280 | dev->weight = 32; |
1da177e4 | 7281 | |
612eff0e BH |
7282 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7283 | dev->poll_controller = s2io_netpoll; | |
7284 | #endif | |
7285 | ||
1da177e4 LT |
7286 | dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; |
7287 | if (sp->high_dma_flag == TRUE) | |
7288 | dev->features |= NETIF_F_HIGHDMA; | |
1da177e4 | 7289 | dev->features |= NETIF_F_TSO; |
f83ef8c0 | 7290 | dev->features |= NETIF_F_TSO6; |
db874e65 | 7291 | if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) { |
fed5eccd AR |
7292 | dev->features |= NETIF_F_UFO; |
7293 | dev->features |= NETIF_F_HW_CSUM; | |
7294 | } | |
1da177e4 LT |
7295 | |
7296 | dev->tx_timeout = &s2io_tx_watchdog; | |
7297 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; | |
c4028958 DH |
7298 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
7299 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 7300 | |
e960fc5c | 7301 | pci_save_state(sp->pdev); |
1da177e4 LT |
7302 | |
7303 | /* Setting swapper control on the NIC, for proper reset operation */ | |
7304 | if (s2io_set_swapper(sp)) { | |
7305 | DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n", | |
7306 | dev->name); | |
7307 | ret = -EAGAIN; | |
7308 | goto set_swap_failed; | |
7309 | } | |
7310 | ||
541ae68f K |
7311 | /* Verify if the Herc works on the slot its placed into */ |
7312 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7313 | mode = s2io_verify_pci_mode(sp); | |
7314 | if (mode < 0) { | |
7315 | DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__); | |
7316 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); | |
7317 | ret = -EBADSLT; | |
7318 | goto set_swap_failed; | |
7319 | } | |
7320 | } | |
7321 | ||
7322 | /* Not needed for Herc */ | |
7323 | if (sp->device_type & XFRAME_I_DEVICE) { | |
7324 | /* | |
7325 | * Fix for all "FFs" MAC address problems observed on | |
7326 | * Alpha platforms | |
7327 | */ | |
7328 | fix_mac_address(sp); | |
7329 | s2io_reset(sp); | |
7330 | } | |
1da177e4 LT |
7331 | |
7332 | /* | |
1da177e4 LT |
7333 | * MAC address initialization. |
7334 | * For now only one mac address will be read and used. | |
7335 | */ | |
7336 | bar0 = sp->bar0; | |
7337 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
7338 | RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET); | |
7339 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
c92ca04b | 7340 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
9fc93a41 | 7341 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET); |
1da177e4 LT |
7342 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
7343 | mac_down = (u32) tmp64; | |
7344 | mac_up = (u32) (tmp64 >> 32); | |
7345 | ||
1da177e4 LT |
7346 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); |
7347 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
7348 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
7349 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
7350 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
7351 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
7352 | ||
1da177e4 LT |
7353 | /* Set the factory defined MAC address initially */ |
7354 | dev->addr_len = ETH_ALEN; | |
7355 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
7356 | ||
b41477f3 AR |
7357 | /* reset Nic and bring it to known state */ |
7358 | s2io_reset(sp); | |
7359 | ||
1da177e4 | 7360 | /* |
20346722 | 7361 | * Initialize the tasklet status and link state flags |
541ae68f | 7362 | * and the card state parameter |
1da177e4 LT |
7363 | */ |
7364 | atomic_set(&(sp->card_state), 0); | |
7365 | sp->tasklet_status = 0; | |
7366 | sp->link_state = 0; | |
7367 | ||
1da177e4 LT |
7368 | /* Initialize spinlocks */ |
7369 | spin_lock_init(&sp->tx_lock); | |
db874e65 SS |
7370 | |
7371 | if (!napi) | |
7372 | spin_lock_init(&sp->put_lock); | |
7ba013ac | 7373 | spin_lock_init(&sp->rx_lock); |
1da177e4 | 7374 | |
20346722 K |
7375 | /* |
7376 | * SXE-002: Configure link and activity LED to init state | |
7377 | * on driver load. | |
1da177e4 LT |
7378 | */ |
7379 | subid = sp->pdev->subsystem_device; | |
7380 | if ((subid & 0xFF) >= 0x07) { | |
7381 | val64 = readq(&bar0->gpio_control); | |
7382 | val64 |= 0x0000800000000000ULL; | |
7383 | writeq(val64, &bar0->gpio_control); | |
7384 | val64 = 0x0411040400000000ULL; | |
7385 | writeq(val64, (void __iomem *) bar0 + 0x2700); | |
7386 | val64 = readq(&bar0->gpio_control); | |
7387 | } | |
7388 | ||
7389 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
7390 | ||
7391 | if (register_netdev(dev)) { | |
7392 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
7393 | ret = -ENODEV; | |
7394 | goto register_failed; | |
7395 | } | |
9dc737a7 | 7396 | s2io_vpd_read(sp); |
0c61ed5f | 7397 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n"); |
b41477f3 | 7398 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, |
44c10138 | 7399 | sp->product_name, pdev->revision); |
b41477f3 AR |
7400 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, |
7401 | s2io_driver_version); | |
9dc737a7 | 7402 | DBG_PRINT(ERR_DBG, "%s: MAC ADDR: " |
19a60522 | 7403 | "%02x:%02x:%02x:%02x:%02x:%02x", dev->name, |
541ae68f K |
7404 | sp->def_mac_addr[0].mac_addr[0], |
7405 | sp->def_mac_addr[0].mac_addr[1], | |
7406 | sp->def_mac_addr[0].mac_addr[2], | |
7407 | sp->def_mac_addr[0].mac_addr[3], | |
7408 | sp->def_mac_addr[0].mac_addr[4], | |
7409 | sp->def_mac_addr[0].mac_addr[5]); | |
19a60522 | 7410 | DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num); |
9dc737a7 | 7411 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 7412 | mode = s2io_print_pci_mode(sp); |
541ae68f | 7413 | if (mode < 0) { |
9dc737a7 | 7414 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); |
541ae68f | 7415 | ret = -EBADSLT; |
9dc737a7 | 7416 | unregister_netdev(dev); |
541ae68f K |
7417 | goto set_swap_failed; |
7418 | } | |
541ae68f | 7419 | } |
9dc737a7 AR |
7420 | switch(sp->rxd_mode) { |
7421 | case RXD_MODE_1: | |
7422 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
7423 | dev->name); | |
7424 | break; | |
7425 | case RXD_MODE_3B: | |
7426 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
7427 | dev->name); | |
7428 | break; | |
9dc737a7 | 7429 | } |
db874e65 SS |
7430 | |
7431 | if (napi) | |
7432 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); | |
9dc737a7 AR |
7433 | switch(sp->intr_type) { |
7434 | case INTA: | |
7435 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
7436 | break; | |
7437 | case MSI: | |
7438 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name); | |
7439 | break; | |
7440 | case MSI_X: | |
7441 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
7442 | break; | |
7443 | } | |
7d3d0439 RA |
7444 | if (sp->lro) |
7445 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", | |
9dc737a7 | 7446 | dev->name); |
db874e65 SS |
7447 | if (ufo) |
7448 | DBG_PRINT(ERR_DBG, "%s: UDP Fragmentation Offload(UFO)" | |
7449 | " enabled\n", dev->name); | |
7ba013ac | 7450 | /* Initialize device name */ |
9dc737a7 | 7451 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 7452 | |
b6e3f982 K |
7453 | /* Initialize bimodal Interrupts */ |
7454 | sp->config.bimodal = bimodal; | |
7455 | if (!(sp->device_type & XFRAME_II_DEVICE) && bimodal) { | |
7456 | sp->config.bimodal = 0; | |
7457 | DBG_PRINT(ERR_DBG,"%s:Bimodal intr not supported by Xframe I\n", | |
7458 | dev->name); | |
7459 | } | |
7460 | ||
20346722 K |
7461 | /* |
7462 | * Make Link state as off at this point, when the Link change | |
7463 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
7464 | * the right state. |
7465 | */ | |
7466 | netif_carrier_off(dev); | |
1da177e4 LT |
7467 | |
7468 | return 0; | |
7469 | ||
7470 | register_failed: | |
7471 | set_swap_failed: | |
7472 | iounmap(sp->bar1); | |
7473 | bar1_remap_failed: | |
7474 | iounmap(sp->bar0); | |
7475 | bar0_remap_failed: | |
7476 | mem_alloc_failed: | |
7477 | free_shared_mem(sp); | |
7478 | pci_disable_device(pdev); | |
cc6e7c44 RA |
7479 | if (dev_intr_type != MSI_X) |
7480 | pci_release_regions(pdev); | |
7481 | else { | |
7482 | release_mem_region(pci_resource_start(pdev, 0), | |
7483 | pci_resource_len(pdev, 0)); | |
7484 | release_mem_region(pci_resource_start(pdev, 2), | |
7485 | pci_resource_len(pdev, 2)); | |
7486 | } | |
1da177e4 LT |
7487 | pci_set_drvdata(pdev, NULL); |
7488 | free_netdev(dev); | |
7489 | ||
7490 | return ret; | |
7491 | } | |
7492 | ||
7493 | /** | |
20346722 | 7494 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 7495 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 7496 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 7497 | * PCI device and free up all resource held up by the device. This could |
20346722 | 7498 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
7499 | * from memory. |
7500 | */ | |
7501 | ||
7502 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
7503 | { | |
7504 | struct net_device *dev = | |
7505 | (struct net_device *) pci_get_drvdata(pdev); | |
1ee6dd77 | 7506 | struct s2io_nic *sp; |
1da177e4 LT |
7507 | |
7508 | if (dev == NULL) { | |
7509 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
7510 | return; | |
7511 | } | |
7512 | ||
22747d6b FR |
7513 | flush_scheduled_work(); |
7514 | ||
1da177e4 LT |
7515 | sp = dev->priv; |
7516 | unregister_netdev(dev); | |
7517 | ||
7518 | free_shared_mem(sp); | |
7519 | iounmap(sp->bar0); | |
7520 | iounmap(sp->bar1); | |
cc6e7c44 RA |
7521 | if (sp->intr_type != MSI_X) |
7522 | pci_release_regions(pdev); | |
7523 | else { | |
7524 | release_mem_region(pci_resource_start(pdev, 0), | |
7525 | pci_resource_len(pdev, 0)); | |
7526 | release_mem_region(pci_resource_start(pdev, 2), | |
7527 | pci_resource_len(pdev, 2)); | |
7528 | } | |
1da177e4 | 7529 | pci_set_drvdata(pdev, NULL); |
1da177e4 | 7530 | free_netdev(dev); |
19a60522 | 7531 | pci_disable_device(pdev); |
1da177e4 LT |
7532 | } |
7533 | ||
7534 | /** | |
7535 | * s2io_starter - Entry point for the driver | |
7536 | * Description: This function is the entry point for the driver. It verifies | |
7537 | * the module loadable parameters and initializes PCI configuration space. | |
7538 | */ | |
7539 | ||
7540 | int __init s2io_starter(void) | |
7541 | { | |
29917620 | 7542 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
7543 | } |
7544 | ||
7545 | /** | |
20346722 | 7546 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
7547 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
7548 | */ | |
7549 | ||
372cc597 | 7550 | static __exit void s2io_closer(void) |
1da177e4 LT |
7551 | { |
7552 | pci_unregister_driver(&s2io_driver); | |
7553 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
7554 | } | |
7555 | ||
7556 | module_init(s2io_starter); | |
7557 | module_exit(s2io_closer); | |
7d3d0439 | 7558 | |
6aa20a22 | 7559 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
1ee6dd77 | 7560 | struct tcphdr **tcp, struct RxD_t *rxdp) |
7d3d0439 RA |
7561 | { |
7562 | int ip_off; | |
7563 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
7564 | ||
7565 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
7566 | DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n", | |
7567 | __FUNCTION__); | |
7568 | return -1; | |
7569 | } | |
7570 | ||
7571 | /* TODO: | |
7572 | * By default the VLAN field in the MAC is stripped by the card, if this | |
7573 | * feature is turned off in rx_pa_cfg register, then the ip_off field | |
7574 | * has to be shifted by a further 2 bytes | |
7575 | */ | |
7576 | switch (l2_type) { | |
7577 | case 0: /* DIX type */ | |
7578 | case 4: /* DIX type with VLAN */ | |
7579 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; | |
7580 | break; | |
7581 | /* LLC, SNAP etc are considered non-mergeable */ | |
7582 | default: | |
7583 | return -1; | |
7584 | } | |
7585 | ||
7586 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
7587 | ip_len = (u8)((*ip)->ihl); | |
7588 | ip_len <<= 2; | |
7589 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
7590 | ||
7591 | return 0; | |
7592 | } | |
7593 | ||
1ee6dd77 | 7594 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7595 | struct tcphdr *tcp) |
7596 | { | |
7597 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7598 | if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) || | |
7599 | (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest)) | |
7600 | return -1; | |
7601 | return 0; | |
7602 | } | |
7603 | ||
7604 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
7605 | { | |
7606 | return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2)); | |
7607 | } | |
7608 | ||
1ee6dd77 | 7609 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
7d3d0439 RA |
7610 | struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len) |
7611 | { | |
7612 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7613 | lro->l2h = l2h; | |
7614 | lro->iph = ip; | |
7615 | lro->tcph = tcp; | |
7616 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
7617 | lro->tcp_ack = ntohl(tcp->ack_seq); | |
7618 | lro->sg_num = 1; | |
7619 | lro->total_len = ntohs(ip->tot_len); | |
7620 | lro->frags_len = 0; | |
6aa20a22 | 7621 | /* |
7d3d0439 RA |
7622 | * check if we saw TCP timestamp. Other consistency checks have |
7623 | * already been done. | |
7624 | */ | |
7625 | if (tcp->doff == 8) { | |
7626 | u32 *ptr; | |
7627 | ptr = (u32 *)(tcp+1); | |
7628 | lro->saw_ts = 1; | |
7629 | lro->cur_tsval = *(ptr+1); | |
7630 | lro->cur_tsecr = *(ptr+2); | |
7631 | } | |
7632 | lro->in_use = 1; | |
7633 | } | |
7634 | ||
1ee6dd77 | 7635 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
7636 | { |
7637 | struct iphdr *ip = lro->iph; | |
7638 | struct tcphdr *tcp = lro->tcph; | |
bd4f3ae1 | 7639 | __sum16 nchk; |
1ee6dd77 | 7640 | struct stat_block *statinfo = sp->mac_control.stats_info; |
7d3d0439 RA |
7641 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7642 | ||
7643 | /* Update L3 header */ | |
7644 | ip->tot_len = htons(lro->total_len); | |
7645 | ip->check = 0; | |
7646 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
7647 | ip->check = nchk; | |
7648 | ||
7649 | /* Update L4 header */ | |
7650 | tcp->ack_seq = lro->tcp_ack; | |
7651 | tcp->window = lro->window; | |
7652 | ||
7653 | /* Update tsecr field if this session has timestamps enabled */ | |
7654 | if (lro->saw_ts) { | |
7655 | u32 *ptr = (u32 *)(tcp + 1); | |
7656 | *(ptr+2) = lro->cur_tsecr; | |
7657 | } | |
7658 | ||
7659 | /* Update counters required for calculation of | |
7660 | * average no. of packets aggregated. | |
7661 | */ | |
7662 | statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num; | |
7663 | statinfo->sw_stat.num_aggregations++; | |
7664 | } | |
7665 | ||
1ee6dd77 | 7666 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7667 | struct tcphdr *tcp, u32 l4_pyld) |
7668 | { | |
7669 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7670 | lro->total_len += l4_pyld; | |
7671 | lro->frags_len += l4_pyld; | |
7672 | lro->tcp_next_seq += l4_pyld; | |
7673 | lro->sg_num++; | |
7674 | ||
7675 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
7676 | lro->tcp_ack = tcp->ack_seq; | |
7677 | lro->window = tcp->window; | |
6aa20a22 | 7678 | |
7d3d0439 RA |
7679 | if (lro->saw_ts) { |
7680 | u32 *ptr; | |
7681 | /* Update tsecr and tsval from this packet */ | |
7682 | ptr = (u32 *) (tcp + 1); | |
6aa20a22 | 7683 | lro->cur_tsval = *(ptr + 1); |
7d3d0439 RA |
7684 | lro->cur_tsecr = *(ptr + 2); |
7685 | } | |
7686 | } | |
7687 | ||
1ee6dd77 | 7688 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
7689 | struct tcphdr *tcp, u32 tcp_pyld_len) |
7690 | { | |
7d3d0439 RA |
7691 | u8 *ptr; |
7692 | ||
79dc1901 AM |
7693 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7694 | ||
7d3d0439 RA |
7695 | if (!tcp_pyld_len) { |
7696 | /* Runt frame or a pure ack */ | |
7697 | return -1; | |
7698 | } | |
7699 | ||
7700 | if (ip->ihl != 5) /* IP has options */ | |
7701 | return -1; | |
7702 | ||
75c30b13 AR |
7703 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
7704 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
7705 | return -1; | |
7706 | ||
7707 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
7d3d0439 | 7708 | if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || |
75c30b13 | 7709 | tcp->ece || tcp->cwr || !tcp->ack) { |
7d3d0439 RA |
7710 | /* |
7711 | * Currently recognize only the ack control word and | |
7712 | * any other control field being set would result in | |
7713 | * flushing the LRO session | |
7714 | */ | |
7715 | return -1; | |
7716 | } | |
7717 | ||
6aa20a22 | 7718 | /* |
7d3d0439 RA |
7719 | * Allow only one TCP timestamp option. Don't aggregate if |
7720 | * any other options are detected. | |
7721 | */ | |
7722 | if (tcp->doff != 5 && tcp->doff != 8) | |
7723 | return -1; | |
7724 | ||
7725 | if (tcp->doff == 8) { | |
6aa20a22 | 7726 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
7727 | while (*ptr == TCPOPT_NOP) |
7728 | ptr++; | |
7729 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
7730 | return -1; | |
7731 | ||
7732 | /* Ensure timestamp value increases monotonically */ | |
7733 | if (l_lro) | |
7734 | if (l_lro->cur_tsval > *((u32 *)(ptr+2))) | |
7735 | return -1; | |
7736 | ||
7737 | /* timestamp echo reply should be non-zero */ | |
6aa20a22 | 7738 | if (*((u32 *)(ptr+6)) == 0) |
7d3d0439 RA |
7739 | return -1; |
7740 | } | |
7741 | ||
7742 | return 0; | |
7743 | } | |
7744 | ||
7745 | static int | |
1ee6dd77 RB |
7746 | s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro, |
7747 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
7748 | { |
7749 | struct iphdr *ip; | |
7750 | struct tcphdr *tcph; | |
7751 | int ret = 0, i; | |
7752 | ||
7753 | if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, | |
7754 | rxdp))) { | |
7755 | DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n", | |
7756 | ip->saddr, ip->daddr); | |
7757 | } else { | |
7758 | return ret; | |
7759 | } | |
7760 | ||
7761 | tcph = (struct tcphdr *)*tcp; | |
7762 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
7763 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7764 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7765 | if (l_lro->in_use) { |
7766 | if (check_for_socket_match(l_lro, ip, tcph)) | |
7767 | continue; | |
7768 | /* Sock pair matched */ | |
7769 | *lro = l_lro; | |
7770 | ||
7771 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
7772 | DBG_PRINT(INFO_DBG, "%s:Out of order. expected " | |
7773 | "0x%x, actual 0x%x\n", __FUNCTION__, | |
7774 | (*lro)->tcp_next_seq, | |
7775 | ntohl(tcph->seq)); | |
7776 | ||
7777 | sp->mac_control.stats_info-> | |
7778 | sw_stat.outof_sequence_pkts++; | |
7779 | ret = 2; | |
7780 | break; | |
7781 | } | |
7782 | ||
7783 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len)) | |
7784 | ret = 1; /* Aggregate */ | |
7785 | else | |
7786 | ret = 2; /* Flush both */ | |
7787 | break; | |
7788 | } | |
7789 | } | |
7790 | ||
7791 | if (ret == 0) { | |
7792 | /* Before searching for available LRO objects, | |
7793 | * check if the pkt is L3/L4 aggregatable. If not | |
7794 | * don't create new LRO session. Just send this | |
7795 | * packet up. | |
7796 | */ | |
7797 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) { | |
7798 | return 5; | |
7799 | } | |
7800 | ||
7801 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7802 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7803 | if (!(l_lro->in_use)) { |
7804 | *lro = l_lro; | |
7805 | ret = 3; /* Begin anew */ | |
7806 | break; | |
7807 | } | |
7808 | } | |
7809 | } | |
7810 | ||
7811 | if (ret == 0) { /* sessions exceeded */ | |
7812 | DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n", | |
7813 | __FUNCTION__); | |
7814 | *lro = NULL; | |
7815 | return ret; | |
7816 | } | |
7817 | ||
7818 | switch (ret) { | |
7819 | case 3: | |
7820 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len); | |
7821 | break; | |
7822 | case 2: | |
7823 | update_L3L4_header(sp, *lro); | |
7824 | break; | |
7825 | case 1: | |
7826 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
7827 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7828 | update_L3L4_header(sp, *lro); | |
7829 | ret = 4; /* Flush the LRO */ | |
7830 | } | |
7831 | break; | |
7832 | default: | |
7833 | DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n", | |
7834 | __FUNCTION__); | |
7835 | break; | |
7836 | } | |
7837 | ||
7838 | return ret; | |
7839 | } | |
7840 | ||
1ee6dd77 | 7841 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 7842 | { |
1ee6dd77 | 7843 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
7844 | |
7845 | memset(lro, 0, lro_struct_size); | |
7846 | } | |
7847 | ||
7848 | static void queue_rx_frame(struct sk_buff *skb) | |
7849 | { | |
7850 | struct net_device *dev = skb->dev; | |
7851 | ||
7852 | skb->protocol = eth_type_trans(skb, dev); | |
db874e65 SS |
7853 | if (napi) |
7854 | netif_receive_skb(skb); | |
7855 | else | |
7856 | netif_rx(skb); | |
7d3d0439 RA |
7857 | } |
7858 | ||
1ee6dd77 RB |
7859 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
7860 | struct sk_buff *skb, | |
7d3d0439 RA |
7861 | u32 tcp_len) |
7862 | { | |
75c30b13 | 7863 | struct sk_buff *first = lro->parent; |
7d3d0439 RA |
7864 | |
7865 | first->len += tcp_len; | |
7866 | first->data_len = lro->frags_len; | |
7867 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
7868 | if (skb_shinfo(first)->frag_list) |
7869 | lro->last_frag->next = skb; | |
7d3d0439 RA |
7870 | else |
7871 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 7872 | first->truesize += skb->truesize; |
75c30b13 | 7873 | lro->last_frag = skb; |
7d3d0439 RA |
7874 | sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; |
7875 | return; | |
7876 | } | |
d796fdb7 LV |
7877 | |
7878 | /** | |
7879 | * s2io_io_error_detected - called when PCI error is detected | |
7880 | * @pdev: Pointer to PCI device | |
8453d43f | 7881 | * @state: The current pci connection state |
d796fdb7 LV |
7882 | * |
7883 | * This function is called after a PCI bus error affecting | |
7884 | * this device has been detected. | |
7885 | */ | |
7886 | static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev, | |
7887 | pci_channel_state_t state) | |
7888 | { | |
7889 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7890 | struct s2io_nic *sp = netdev->priv; | |
7891 | ||
7892 | netif_device_detach(netdev); | |
7893 | ||
7894 | if (netif_running(netdev)) { | |
7895 | /* Bring down the card, while avoiding PCI I/O */ | |
7896 | do_s2io_card_down(sp, 0); | |
d796fdb7 LV |
7897 | } |
7898 | pci_disable_device(pdev); | |
7899 | ||
7900 | return PCI_ERS_RESULT_NEED_RESET; | |
7901 | } | |
7902 | ||
7903 | /** | |
7904 | * s2io_io_slot_reset - called after the pci bus has been reset. | |
7905 | * @pdev: Pointer to PCI device | |
7906 | * | |
7907 | * Restart the card from scratch, as if from a cold-boot. | |
7908 | * At this point, the card has exprienced a hard reset, | |
7909 | * followed by fixups by BIOS, and has its config space | |
7910 | * set up identically to what it was at cold boot. | |
7911 | */ | |
7912 | static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev) | |
7913 | { | |
7914 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7915 | struct s2io_nic *sp = netdev->priv; | |
7916 | ||
7917 | if (pci_enable_device(pdev)) { | |
7918 | printk(KERN_ERR "s2io: " | |
7919 | "Cannot re-enable PCI device after reset.\n"); | |
7920 | return PCI_ERS_RESULT_DISCONNECT; | |
7921 | } | |
7922 | ||
7923 | pci_set_master(pdev); | |
7924 | s2io_reset(sp); | |
7925 | ||
7926 | return PCI_ERS_RESULT_RECOVERED; | |
7927 | } | |
7928 | ||
7929 | /** | |
7930 | * s2io_io_resume - called when traffic can start flowing again. | |
7931 | * @pdev: Pointer to PCI device | |
7932 | * | |
7933 | * This callback is called when the error recovery driver tells | |
7934 | * us that its OK to resume normal operation. | |
7935 | */ | |
7936 | static void s2io_io_resume(struct pci_dev *pdev) | |
7937 | { | |
7938 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7939 | struct s2io_nic *sp = netdev->priv; | |
7940 | ||
7941 | if (netif_running(netdev)) { | |
7942 | if (s2io_card_up(sp)) { | |
7943 | printk(KERN_ERR "s2io: " | |
7944 | "Can't bring device back up after reset.\n"); | |
7945 | return; | |
7946 | } | |
7947 | ||
7948 | if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) { | |
7949 | s2io_card_down(sp); | |
7950 | printk(KERN_ERR "s2io: " | |
7951 | "Can't resetore mac addr after reset.\n"); | |
7952 | return; | |
7953 | } | |
7954 | } | |
7955 | ||
7956 | netif_device_attach(netdev); | |
7957 | netif_wake_queue(netdev); | |
7958 | } |