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1da177e4 | 1 | /************************************************************************ |
776bd20f | 2 | * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC |
1da177e4 LT |
3 | * Copyright(c) 2002-2005 Neterion Inc. |
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 AR |
34 | * rx_ring_mode: This defines the operation mode of all 8 rings. The valid |
35 | * values are 1, 2 and 3. | |
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 | |
1da177e4 LT |
45 | ************************************************************************/ |
46 | ||
1da177e4 LT |
47 | #include <linux/module.h> |
48 | #include <linux/types.h> | |
49 | #include <linux/errno.h> | |
50 | #include <linux/ioport.h> | |
51 | #include <linux/pci.h> | |
1e7f0bd8 | 52 | #include <linux/dma-mapping.h> |
1da177e4 LT |
53 | #include <linux/kernel.h> |
54 | #include <linux/netdevice.h> | |
55 | #include <linux/etherdevice.h> | |
56 | #include <linux/skbuff.h> | |
57 | #include <linux/init.h> | |
58 | #include <linux/delay.h> | |
59 | #include <linux/stddef.h> | |
60 | #include <linux/ioctl.h> | |
61 | #include <linux/timex.h> | |
1da177e4 | 62 | #include <linux/ethtool.h> |
1da177e4 | 63 | #include <linux/workqueue.h> |
be3a6b02 | 64 | #include <linux/if_vlan.h> |
7d3d0439 RA |
65 | #include <linux/ip.h> |
66 | #include <linux/tcp.h> | |
67 | #include <net/tcp.h> | |
1da177e4 | 68 | |
1da177e4 LT |
69 | #include <asm/system.h> |
70 | #include <asm/uaccess.h> | |
20346722 | 71 | #include <asm/io.h> |
fe931395 | 72 | #include <asm/div64.h> |
330ce0de | 73 | #include <asm/irq.h> |
1da177e4 LT |
74 | |
75 | /* local include */ | |
76 | #include "s2io.h" | |
77 | #include "s2io-regs.h" | |
78 | ||
1ee6dd77 | 79 | #define DRV_VERSION "2.0.16.1" |
6c1792f4 | 80 | |
1da177e4 | 81 | /* S2io Driver name & version. */ |
20346722 | 82 | static char s2io_driver_name[] = "Neterion"; |
6c1792f4 | 83 | static char s2io_driver_version[] = DRV_VERSION; |
1da177e4 | 84 | |
26df54bf AB |
85 | static int rxd_size[4] = {32,48,48,64}; |
86 | static int rxd_count[4] = {127,85,85,63}; | |
da6971d8 | 87 | |
1ee6dd77 | 88 | static inline int RXD_IS_UP2DT(struct RxD_t *rxdp) |
5e25b9dd K |
89 | { |
90 | int ret; | |
91 | ||
92 | ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) && | |
93 | (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK)); | |
94 | ||
95 | return ret; | |
96 | } | |
97 | ||
20346722 | 98 | /* |
1da177e4 LT |
99 | * Cards with following subsystem_id have a link state indication |
100 | * problem, 600B, 600C, 600D, 640B, 640C and 640D. | |
101 | * macro below identifies these cards given the subsystem_id. | |
102 | */ | |
541ae68f K |
103 | #define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \ |
104 | (dev_type == XFRAME_I_DEVICE) ? \ | |
105 | ((((subid >= 0x600B) && (subid <= 0x600D)) || \ | |
106 | ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0 | |
1da177e4 LT |
107 | |
108 | #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \ | |
109 | ADAPTER_STATUS_RMAC_LOCAL_FAULT))) | |
110 | #define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status)) | |
111 | #define PANIC 1 | |
112 | #define LOW 2 | |
1ee6dd77 | 113 | static inline int rx_buffer_level(struct s2io_nic * sp, int rxb_size, int ring) |
1da177e4 | 114 | { |
1ee6dd77 | 115 | struct mac_info *mac_control; |
20346722 K |
116 | |
117 | mac_control = &sp->mac_control; | |
863c11a9 AR |
118 | if (rxb_size <= rxd_count[sp->rxd_mode]) |
119 | return PANIC; | |
120 | else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16) | |
121 | return LOW; | |
122 | return 0; | |
1da177e4 LT |
123 | } |
124 | ||
125 | /* Ethtool related variables and Macros. */ | |
126 | static char s2io_gstrings[][ETH_GSTRING_LEN] = { | |
127 | "Register test\t(offline)", | |
128 | "Eeprom test\t(offline)", | |
129 | "Link test\t(online)", | |
130 | "RLDRAM test\t(offline)", | |
131 | "BIST Test\t(offline)" | |
132 | }; | |
133 | ||
134 | static char ethtool_stats_keys[][ETH_GSTRING_LEN] = { | |
135 | {"tmac_frms"}, | |
136 | {"tmac_data_octets"}, | |
137 | {"tmac_drop_frms"}, | |
138 | {"tmac_mcst_frms"}, | |
139 | {"tmac_bcst_frms"}, | |
140 | {"tmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
141 | {"tmac_ttl_octets"}, |
142 | {"tmac_ucst_frms"}, | |
143 | {"tmac_nucst_frms"}, | |
1da177e4 | 144 | {"tmac_any_err_frms"}, |
bd1034f0 | 145 | {"tmac_ttl_less_fb_octets"}, |
1da177e4 LT |
146 | {"tmac_vld_ip_octets"}, |
147 | {"tmac_vld_ip"}, | |
148 | {"tmac_drop_ip"}, | |
149 | {"tmac_icmp"}, | |
150 | {"tmac_rst_tcp"}, | |
151 | {"tmac_tcp"}, | |
152 | {"tmac_udp"}, | |
153 | {"rmac_vld_frms"}, | |
154 | {"rmac_data_octets"}, | |
155 | {"rmac_fcs_err_frms"}, | |
156 | {"rmac_drop_frms"}, | |
157 | {"rmac_vld_mcst_frms"}, | |
158 | {"rmac_vld_bcst_frms"}, | |
159 | {"rmac_in_rng_len_err_frms"}, | |
bd1034f0 | 160 | {"rmac_out_rng_len_err_frms"}, |
1da177e4 LT |
161 | {"rmac_long_frms"}, |
162 | {"rmac_pause_ctrl_frms"}, | |
bd1034f0 AR |
163 | {"rmac_unsup_ctrl_frms"}, |
164 | {"rmac_ttl_octets"}, | |
165 | {"rmac_accepted_ucst_frms"}, | |
166 | {"rmac_accepted_nucst_frms"}, | |
1da177e4 | 167 | {"rmac_discarded_frms"}, |
bd1034f0 AR |
168 | {"rmac_drop_events"}, |
169 | {"rmac_ttl_less_fb_octets"}, | |
170 | {"rmac_ttl_frms"}, | |
1da177e4 LT |
171 | {"rmac_usized_frms"}, |
172 | {"rmac_osized_frms"}, | |
173 | {"rmac_frag_frms"}, | |
174 | {"rmac_jabber_frms"}, | |
bd1034f0 AR |
175 | {"rmac_ttl_64_frms"}, |
176 | {"rmac_ttl_65_127_frms"}, | |
177 | {"rmac_ttl_128_255_frms"}, | |
178 | {"rmac_ttl_256_511_frms"}, | |
179 | {"rmac_ttl_512_1023_frms"}, | |
180 | {"rmac_ttl_1024_1518_frms"}, | |
1da177e4 LT |
181 | {"rmac_ip"}, |
182 | {"rmac_ip_octets"}, | |
183 | {"rmac_hdr_err_ip"}, | |
184 | {"rmac_drop_ip"}, | |
185 | {"rmac_icmp"}, | |
186 | {"rmac_tcp"}, | |
187 | {"rmac_udp"}, | |
188 | {"rmac_err_drp_udp"}, | |
bd1034f0 AR |
189 | {"rmac_xgmii_err_sym"}, |
190 | {"rmac_frms_q0"}, | |
191 | {"rmac_frms_q1"}, | |
192 | {"rmac_frms_q2"}, | |
193 | {"rmac_frms_q3"}, | |
194 | {"rmac_frms_q4"}, | |
195 | {"rmac_frms_q5"}, | |
196 | {"rmac_frms_q6"}, | |
197 | {"rmac_frms_q7"}, | |
198 | {"rmac_full_q0"}, | |
199 | {"rmac_full_q1"}, | |
200 | {"rmac_full_q2"}, | |
201 | {"rmac_full_q3"}, | |
202 | {"rmac_full_q4"}, | |
203 | {"rmac_full_q5"}, | |
204 | {"rmac_full_q6"}, | |
205 | {"rmac_full_q7"}, | |
1da177e4 | 206 | {"rmac_pause_cnt"}, |
bd1034f0 AR |
207 | {"rmac_xgmii_data_err_cnt"}, |
208 | {"rmac_xgmii_ctrl_err_cnt"}, | |
1da177e4 LT |
209 | {"rmac_accepted_ip"}, |
210 | {"rmac_err_tcp"}, | |
bd1034f0 AR |
211 | {"rd_req_cnt"}, |
212 | {"new_rd_req_cnt"}, | |
213 | {"new_rd_req_rtry_cnt"}, | |
214 | {"rd_rtry_cnt"}, | |
215 | {"wr_rtry_rd_ack_cnt"}, | |
216 | {"wr_req_cnt"}, | |
217 | {"new_wr_req_cnt"}, | |
218 | {"new_wr_req_rtry_cnt"}, | |
219 | {"wr_rtry_cnt"}, | |
220 | {"wr_disc_cnt"}, | |
221 | {"rd_rtry_wr_ack_cnt"}, | |
222 | {"txp_wr_cnt"}, | |
223 | {"txd_rd_cnt"}, | |
224 | {"txd_wr_cnt"}, | |
225 | {"rxd_rd_cnt"}, | |
226 | {"rxd_wr_cnt"}, | |
227 | {"txf_rd_cnt"}, | |
228 | {"rxf_wr_cnt"}, | |
229 | {"rmac_ttl_1519_4095_frms"}, | |
230 | {"rmac_ttl_4096_8191_frms"}, | |
231 | {"rmac_ttl_8192_max_frms"}, | |
232 | {"rmac_ttl_gt_max_frms"}, | |
233 | {"rmac_osized_alt_frms"}, | |
234 | {"rmac_jabber_alt_frms"}, | |
235 | {"rmac_gt_max_alt_frms"}, | |
236 | {"rmac_vlan_frms"}, | |
237 | {"rmac_len_discard"}, | |
238 | {"rmac_fcs_discard"}, | |
239 | {"rmac_pf_discard"}, | |
240 | {"rmac_da_discard"}, | |
241 | {"rmac_red_discard"}, | |
242 | {"rmac_rts_discard"}, | |
243 | {"rmac_ingm_full_discard"}, | |
244 | {"link_fault_cnt"}, | |
7ba013ac K |
245 | {"\n DRIVER STATISTICS"}, |
246 | {"single_bit_ecc_errs"}, | |
247 | {"double_bit_ecc_errs"}, | |
bd1034f0 AR |
248 | {"parity_err_cnt"}, |
249 | {"serious_err_cnt"}, | |
250 | {"soft_reset_cnt"}, | |
251 | {"fifo_full_cnt"}, | |
252 | {"ring_full_cnt"}, | |
253 | ("alarm_transceiver_temp_high"), | |
254 | ("alarm_transceiver_temp_low"), | |
255 | ("alarm_laser_bias_current_high"), | |
256 | ("alarm_laser_bias_current_low"), | |
257 | ("alarm_laser_output_power_high"), | |
258 | ("alarm_laser_output_power_low"), | |
259 | ("warn_transceiver_temp_high"), | |
260 | ("warn_transceiver_temp_low"), | |
261 | ("warn_laser_bias_current_high"), | |
262 | ("warn_laser_bias_current_low"), | |
263 | ("warn_laser_output_power_high"), | |
264 | ("warn_laser_output_power_low"), | |
7d3d0439 RA |
265 | ("lro_aggregated_pkts"), |
266 | ("lro_flush_both_count"), | |
267 | ("lro_out_of_sequence_pkts"), | |
268 | ("lro_flush_due_to_max_pkts"), | |
269 | ("lro_avg_aggr_pkts"), | |
1da177e4 LT |
270 | }; |
271 | ||
272 | #define S2IO_STAT_LEN sizeof(ethtool_stats_keys)/ ETH_GSTRING_LEN | |
273 | #define S2IO_STAT_STRINGS_LEN S2IO_STAT_LEN * ETH_GSTRING_LEN | |
274 | ||
275 | #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN | |
276 | #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN | |
277 | ||
25fff88e K |
278 | #define S2IO_TIMER_CONF(timer, handle, arg, exp) \ |
279 | init_timer(&timer); \ | |
280 | timer.function = handle; \ | |
281 | timer.data = (unsigned long) arg; \ | |
282 | mod_timer(&timer, (jiffies + exp)) \ | |
283 | ||
be3a6b02 K |
284 | /* Add the vlan */ |
285 | static void s2io_vlan_rx_register(struct net_device *dev, | |
286 | struct vlan_group *grp) | |
287 | { | |
1ee6dd77 | 288 | struct s2io_nic *nic = dev->priv; |
be3a6b02 K |
289 | unsigned long flags; |
290 | ||
291 | spin_lock_irqsave(&nic->tx_lock, flags); | |
292 | nic->vlgrp = grp; | |
293 | spin_unlock_irqrestore(&nic->tx_lock, flags); | |
294 | } | |
295 | ||
296 | /* Unregister the vlan */ | |
297 | static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid) | |
298 | { | |
1ee6dd77 | 299 | struct s2io_nic *nic = dev->priv; |
be3a6b02 K |
300 | unsigned long flags; |
301 | ||
302 | spin_lock_irqsave(&nic->tx_lock, flags); | |
303 | if (nic->vlgrp) | |
304 | nic->vlgrp->vlan_devices[vid] = NULL; | |
305 | spin_unlock_irqrestore(&nic->tx_lock, flags); | |
306 | } | |
307 | ||
20346722 | 308 | /* |
1da177e4 LT |
309 | * Constants to be programmed into the Xena's registers, to configure |
310 | * the XAUI. | |
311 | */ | |
312 | ||
1da177e4 | 313 | #define END_SIGN 0x0 |
f71e1309 | 314 | static const u64 herc_act_dtx_cfg[] = { |
541ae68f | 315 | /* Set address */ |
e960fc5c | 316 | 0x8000051536750000ULL, 0x80000515367500E0ULL, |
541ae68f | 317 | /* Write data */ |
e960fc5c | 318 | 0x8000051536750004ULL, 0x80000515367500E4ULL, |
541ae68f K |
319 | /* Set address */ |
320 | 0x80010515003F0000ULL, 0x80010515003F00E0ULL, | |
321 | /* Write data */ | |
322 | 0x80010515003F0004ULL, 0x80010515003F00E4ULL, | |
323 | /* Set address */ | |
e960fc5c | 324 | 0x801205150D440000ULL, 0x801205150D4400E0ULL, |
325 | /* Write data */ | |
326 | 0x801205150D440004ULL, 0x801205150D4400E4ULL, | |
327 | /* Set address */ | |
541ae68f K |
328 | 0x80020515F2100000ULL, 0x80020515F21000E0ULL, |
329 | /* Write data */ | |
330 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
331 | /* Done */ | |
332 | END_SIGN | |
333 | }; | |
334 | ||
f71e1309 | 335 | static const u64 xena_dtx_cfg[] = { |
c92ca04b | 336 | /* Set address */ |
1da177e4 | 337 | 0x8000051500000000ULL, 0x80000515000000E0ULL, |
c92ca04b AR |
338 | /* Write data */ |
339 | 0x80000515D9350004ULL, 0x80000515D93500E4ULL, | |
340 | /* Set address */ | |
341 | 0x8001051500000000ULL, 0x80010515000000E0ULL, | |
342 | /* Write data */ | |
343 | 0x80010515001E0004ULL, 0x80010515001E00E4ULL, | |
344 | /* Set address */ | |
1da177e4 | 345 | 0x8002051500000000ULL, 0x80020515000000E0ULL, |
c92ca04b AR |
346 | /* Write data */ |
347 | 0x80020515F2100004ULL, 0x80020515F21000E4ULL, | |
1da177e4 LT |
348 | END_SIGN |
349 | }; | |
350 | ||
20346722 | 351 | /* |
1da177e4 LT |
352 | * Constants for Fixing the MacAddress problem seen mostly on |
353 | * Alpha machines. | |
354 | */ | |
f71e1309 | 355 | static const u64 fix_mac[] = { |
1da177e4 LT |
356 | 0x0060000000000000ULL, 0x0060600000000000ULL, |
357 | 0x0040600000000000ULL, 0x0000600000000000ULL, | |
358 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
359 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
360 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
361 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
362 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
363 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
364 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
365 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
366 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
367 | 0x0020600000000000ULL, 0x0060600000000000ULL, | |
368 | 0x0020600000000000ULL, 0x0000600000000000ULL, | |
369 | 0x0040600000000000ULL, 0x0060600000000000ULL, | |
370 | END_SIGN | |
371 | }; | |
372 | ||
b41477f3 AR |
373 | MODULE_AUTHOR("Raghavendra Koushik <raghavendra.koushik@neterion.com>"); |
374 | MODULE_LICENSE("GPL"); | |
375 | MODULE_VERSION(DRV_VERSION); | |
376 | ||
377 | ||
1da177e4 | 378 | /* Module Loadable parameters. */ |
b41477f3 AR |
379 | S2IO_PARM_INT(tx_fifo_num, 1); |
380 | S2IO_PARM_INT(rx_ring_num, 1); | |
381 | ||
382 | ||
383 | S2IO_PARM_INT(rx_ring_mode, 1); | |
384 | S2IO_PARM_INT(use_continuous_tx_intrs, 1); | |
385 | S2IO_PARM_INT(rmac_pause_time, 0x100); | |
386 | S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); | |
387 | S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); | |
388 | S2IO_PARM_INT(shared_splits, 0); | |
389 | S2IO_PARM_INT(tmac_util_period, 5); | |
390 | S2IO_PARM_INT(rmac_util_period, 5); | |
391 | S2IO_PARM_INT(bimodal, 0); | |
392 | S2IO_PARM_INT(l3l4hdr_size, 128); | |
303bcb4b | 393 | /* Frequency of Rx desc syncs expressed as power of 2 */ |
b41477f3 | 394 | S2IO_PARM_INT(rxsync_frequency, 3); |
cc6e7c44 | 395 | /* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */ |
b41477f3 | 396 | S2IO_PARM_INT(intr_type, 0); |
7d3d0439 | 397 | /* Large receive offload feature */ |
b41477f3 | 398 | S2IO_PARM_INT(lro, 0); |
7d3d0439 RA |
399 | /* Max pkts to be aggregated by LRO at one time. If not specified, |
400 | * aggregation happens until we hit max IP pkt size(64K) | |
401 | */ | |
b41477f3 | 402 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
b41477f3 | 403 | S2IO_PARM_INT(indicate_max_pkts, 0); |
db874e65 SS |
404 | |
405 | S2IO_PARM_INT(napi, 1); | |
406 | S2IO_PARM_INT(ufo, 0); | |
b41477f3 AR |
407 | |
408 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
409 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; | |
410 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = | |
411 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; | |
412 | static unsigned int rts_frm_len[MAX_RX_RINGS] = | |
413 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; | |
414 | ||
415 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
416 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
417 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 418 | |
20346722 | 419 | /* |
1da177e4 | 420 | * S2IO device table. |
20346722 | 421 | * This table lists all the devices that this driver supports. |
1da177e4 LT |
422 | */ |
423 | static struct pci_device_id s2io_tbl[] __devinitdata = { | |
424 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, | |
425 | PCI_ANY_ID, PCI_ANY_ID}, | |
426 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
427 | PCI_ANY_ID, PCI_ANY_ID}, | |
428 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
20346722 K |
429 | PCI_ANY_ID, PCI_ANY_ID}, |
430 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
431 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
432 | {0,} |
433 | }; | |
434 | ||
435 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
436 | ||
437 | static struct pci_driver s2io_driver = { | |
438 | .name = "S2IO", | |
439 | .id_table = s2io_tbl, | |
440 | .probe = s2io_init_nic, | |
441 | .remove = __devexit_p(s2io_rem_nic), | |
442 | }; | |
443 | ||
444 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
445 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
446 | ||
447 | /** | |
448 | * init_shared_mem - Allocation and Initialization of Memory | |
449 | * @nic: Device private variable. | |
20346722 K |
450 | * Description: The function allocates all the memory areas shared |
451 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
452 | * Rx descriptors and the statistics block. |
453 | */ | |
454 | ||
455 | static int init_shared_mem(struct s2io_nic *nic) | |
456 | { | |
457 | u32 size; | |
458 | void *tmp_v_addr, *tmp_v_addr_next; | |
459 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
1ee6dd77 | 460 | struct RxD_block *pre_rxd_blk = NULL; |
372cc597 | 461 | int i, j, blk_cnt; |
1da177e4 LT |
462 | int lst_size, lst_per_page; |
463 | struct net_device *dev = nic->dev; | |
8ae418cf | 464 | unsigned long tmp; |
1ee6dd77 | 465 | struct buffAdd *ba; |
1da177e4 | 466 | |
1ee6dd77 | 467 | struct mac_info *mac_control; |
1da177e4 LT |
468 | struct config_param *config; |
469 | ||
470 | mac_control = &nic->mac_control; | |
471 | config = &nic->config; | |
472 | ||
473 | ||
474 | /* Allocation and initialization of TXDLs in FIOFs */ | |
475 | size = 0; | |
476 | for (i = 0; i < config->tx_fifo_num; i++) { | |
477 | size += config->tx_cfg[i].fifo_len; | |
478 | } | |
479 | if (size > MAX_AVAILABLE_TXDS) { | |
b41477f3 | 480 | DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); |
0b1f7ebe | 481 | DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); |
b41477f3 | 482 | return -EINVAL; |
1da177e4 LT |
483 | } |
484 | ||
1ee6dd77 | 485 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
486 | lst_per_page = PAGE_SIZE / lst_size; |
487 | ||
488 | for (i = 0; i < config->tx_fifo_num; i++) { | |
489 | int fifo_len = config->tx_cfg[i].fifo_len; | |
1ee6dd77 | 490 | int list_holder_size = fifo_len * sizeof(struct list_info_hold); |
20346722 K |
491 | mac_control->fifos[i].list_info = kmalloc(list_holder_size, |
492 | GFP_KERNEL); | |
493 | if (!mac_control->fifos[i].list_info) { | |
1da177e4 LT |
494 | DBG_PRINT(ERR_DBG, |
495 | "Malloc failed for list_info\n"); | |
496 | return -ENOMEM; | |
497 | } | |
20346722 | 498 | memset(mac_control->fifos[i].list_info, 0, list_holder_size); |
1da177e4 LT |
499 | } |
500 | for (i = 0; i < config->tx_fifo_num; i++) { | |
501 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
502 | lst_per_page); | |
20346722 K |
503 | mac_control->fifos[i].tx_curr_put_info.offset = 0; |
504 | mac_control->fifos[i].tx_curr_put_info.fifo_len = | |
1da177e4 | 505 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
506 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
507 | mac_control->fifos[i].tx_curr_get_info.fifo_len = | |
1da177e4 | 508 | config->tx_cfg[i].fifo_len - 1; |
20346722 K |
509 | mac_control->fifos[i].fifo_no = i; |
510 | mac_control->fifos[i].nic = nic; | |
fed5eccd | 511 | mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 2; |
20346722 | 512 | |
1da177e4 LT |
513 | for (j = 0; j < page_num; j++) { |
514 | int k = 0; | |
515 | dma_addr_t tmp_p; | |
516 | void *tmp_v; | |
517 | tmp_v = pci_alloc_consistent(nic->pdev, | |
518 | PAGE_SIZE, &tmp_p); | |
519 | if (!tmp_v) { | |
520 | DBG_PRINT(ERR_DBG, | |
521 | "pci_alloc_consistent "); | |
522 | DBG_PRINT(ERR_DBG, "failed for TxDL\n"); | |
523 | return -ENOMEM; | |
524 | } | |
776bd20f | 525 | /* If we got a zero DMA address(can happen on |
526 | * certain platforms like PPC), reallocate. | |
527 | * Store virtual address of page we don't want, | |
528 | * to be freed later. | |
529 | */ | |
530 | if (!tmp_p) { | |
531 | mac_control->zerodma_virt_addr = tmp_v; | |
6aa20a22 | 532 | DBG_PRINT(INIT_DBG, |
776bd20f | 533 | "%s: Zero DMA address for TxDL. ", dev->name); |
6aa20a22 | 534 | DBG_PRINT(INIT_DBG, |
6b4d617d | 535 | "Virtual address %p\n", tmp_v); |
776bd20f | 536 | tmp_v = pci_alloc_consistent(nic->pdev, |
537 | PAGE_SIZE, &tmp_p); | |
538 | if (!tmp_v) { | |
539 | DBG_PRINT(ERR_DBG, | |
540 | "pci_alloc_consistent "); | |
541 | DBG_PRINT(ERR_DBG, "failed for TxDL\n"); | |
542 | return -ENOMEM; | |
543 | } | |
544 | } | |
1da177e4 LT |
545 | while (k < lst_per_page) { |
546 | int l = (j * lst_per_page) + k; | |
547 | if (l == config->tx_cfg[i].fifo_len) | |
20346722 K |
548 | break; |
549 | mac_control->fifos[i].list_info[l].list_virt_addr = | |
1da177e4 | 550 | tmp_v + (k * lst_size); |
20346722 | 551 | mac_control->fifos[i].list_info[l].list_phy_addr = |
1da177e4 LT |
552 | tmp_p + (k * lst_size); |
553 | k++; | |
554 | } | |
555 | } | |
556 | } | |
1da177e4 | 557 | |
4384247b | 558 | nic->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL); |
fed5eccd AR |
559 | if (!nic->ufo_in_band_v) |
560 | return -ENOMEM; | |
561 | ||
1da177e4 LT |
562 | /* Allocation and initialization of RXDs in Rings */ |
563 | size = 0; | |
564 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
565 | if (config->rx_cfg[i].num_rxd % |
566 | (rxd_count[nic->rxd_mode] + 1)) { | |
1da177e4 LT |
567 | DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name); |
568 | DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ", | |
569 | i); | |
570 | DBG_PRINT(ERR_DBG, "RxDs per Block"); | |
571 | return FAILURE; | |
572 | } | |
573 | size += config->rx_cfg[i].num_rxd; | |
20346722 | 574 | mac_control->rings[i].block_count = |
da6971d8 AR |
575 | config->rx_cfg[i].num_rxd / |
576 | (rxd_count[nic->rxd_mode] + 1 ); | |
577 | mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd - | |
578 | mac_control->rings[i].block_count; | |
1da177e4 | 579 | } |
da6971d8 | 580 | if (nic->rxd_mode == RXD_MODE_1) |
1ee6dd77 | 581 | size = (size * (sizeof(struct RxD1))); |
da6971d8 | 582 | else |
1ee6dd77 | 583 | size = (size * (sizeof(struct RxD3))); |
1da177e4 LT |
584 | |
585 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
586 | mac_control->rings[i].rx_curr_get_info.block_index = 0; |
587 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
588 | mac_control->rings[i].rx_curr_get_info.ring_len = | |
1da177e4 | 589 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
590 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
591 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
592 | mac_control->rings[i].rx_curr_put_info.ring_len = | |
1da177e4 | 593 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
594 | mac_control->rings[i].nic = nic; |
595 | mac_control->rings[i].ring_no = i; | |
596 | ||
da6971d8 AR |
597 | blk_cnt = config->rx_cfg[i].num_rxd / |
598 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
599 | /* Allocating all the Rx blocks */ |
600 | for (j = 0; j < blk_cnt; j++) { | |
1ee6dd77 | 601 | struct rx_block_info *rx_blocks; |
da6971d8 AR |
602 | int l; |
603 | ||
604 | rx_blocks = &mac_control->rings[i].rx_blocks[j]; | |
605 | size = SIZE_OF_BLOCK; //size is always page size | |
1da177e4 LT |
606 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
607 | &tmp_p_addr); | |
608 | if (tmp_v_addr == NULL) { | |
609 | /* | |
20346722 K |
610 | * In case of failure, free_shared_mem() |
611 | * is called, which should free any | |
612 | * memory that was alloced till the | |
1da177e4 LT |
613 | * failure happened. |
614 | */ | |
da6971d8 | 615 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
616 | return -ENOMEM; |
617 | } | |
618 | memset(tmp_v_addr, 0, size); | |
da6971d8 AR |
619 | rx_blocks->block_virt_addr = tmp_v_addr; |
620 | rx_blocks->block_dma_addr = tmp_p_addr; | |
1ee6dd77 | 621 | rx_blocks->rxds = kmalloc(sizeof(struct rxd_info)* |
da6971d8 AR |
622 | rxd_count[nic->rxd_mode], |
623 | GFP_KERNEL); | |
372cc597 SS |
624 | if (!rx_blocks->rxds) |
625 | return -ENOMEM; | |
da6971d8 AR |
626 | for (l=0; l<rxd_count[nic->rxd_mode];l++) { |
627 | rx_blocks->rxds[l].virt_addr = | |
628 | rx_blocks->block_virt_addr + | |
629 | (rxd_size[nic->rxd_mode] * l); | |
630 | rx_blocks->rxds[l].dma_addr = | |
631 | rx_blocks->block_dma_addr + | |
632 | (rxd_size[nic->rxd_mode] * l); | |
633 | } | |
1da177e4 LT |
634 | } |
635 | /* Interlinking all Rx Blocks */ | |
636 | for (j = 0; j < blk_cnt; j++) { | |
20346722 K |
637 | tmp_v_addr = |
638 | mac_control->rings[i].rx_blocks[j].block_virt_addr; | |
1da177e4 | 639 | tmp_v_addr_next = |
20346722 | 640 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 | 641 | blk_cnt].block_virt_addr; |
20346722 K |
642 | tmp_p_addr = |
643 | mac_control->rings[i].rx_blocks[j].block_dma_addr; | |
1da177e4 | 644 | tmp_p_addr_next = |
20346722 | 645 | mac_control->rings[i].rx_blocks[(j + 1) % |
1da177e4 LT |
646 | blk_cnt].block_dma_addr; |
647 | ||
1ee6dd77 | 648 | pre_rxd_blk = (struct RxD_block *) tmp_v_addr; |
1da177e4 LT |
649 | pre_rxd_blk->reserved_2_pNext_RxD_block = |
650 | (unsigned long) tmp_v_addr_next; | |
1da177e4 LT |
651 | pre_rxd_blk->pNext_RxD_Blk_physical = |
652 | (u64) tmp_p_addr_next; | |
653 | } | |
654 | } | |
da6971d8 AR |
655 | if (nic->rxd_mode >= RXD_MODE_3A) { |
656 | /* | |
657 | * Allocation of Storages for buffer addresses in 2BUFF mode | |
658 | * and the buffers as well. | |
659 | */ | |
660 | for (i = 0; i < config->rx_ring_num; i++) { | |
661 | blk_cnt = config->rx_cfg[i].num_rxd / | |
662 | (rxd_count[nic->rxd_mode]+ 1); | |
663 | mac_control->rings[i].ba = | |
1ee6dd77 | 664 | kmalloc((sizeof(struct buffAdd *) * blk_cnt), |
1da177e4 | 665 | GFP_KERNEL); |
da6971d8 | 666 | if (!mac_control->rings[i].ba) |
1da177e4 | 667 | return -ENOMEM; |
da6971d8 AR |
668 | for (j = 0; j < blk_cnt; j++) { |
669 | int k = 0; | |
670 | mac_control->rings[i].ba[j] = | |
1ee6dd77 | 671 | kmalloc((sizeof(struct buffAdd) * |
da6971d8 AR |
672 | (rxd_count[nic->rxd_mode] + 1)), |
673 | GFP_KERNEL); | |
674 | if (!mac_control->rings[i].ba[j]) | |
1da177e4 | 675 | return -ENOMEM; |
da6971d8 AR |
676 | while (k != rxd_count[nic->rxd_mode]) { |
677 | ba = &mac_control->rings[i].ba[j][k]; | |
678 | ||
679 | ba->ba_0_org = (void *) kmalloc | |
680 | (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL); | |
681 | if (!ba->ba_0_org) | |
682 | return -ENOMEM; | |
683 | tmp = (unsigned long)ba->ba_0_org; | |
684 | tmp += ALIGN_SIZE; | |
685 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
686 | ba->ba_0 = (void *) tmp; | |
687 | ||
688 | ba->ba_1_org = (void *) kmalloc | |
689 | (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL); | |
690 | if (!ba->ba_1_org) | |
691 | return -ENOMEM; | |
692 | tmp = (unsigned long) ba->ba_1_org; | |
693 | tmp += ALIGN_SIZE; | |
694 | tmp &= ~((unsigned long) ALIGN_SIZE); | |
695 | ba->ba_1 = (void *) tmp; | |
696 | k++; | |
697 | } | |
1da177e4 LT |
698 | } |
699 | } | |
700 | } | |
1da177e4 LT |
701 | |
702 | /* Allocation and initialization of Statistics block */ | |
1ee6dd77 | 703 | size = sizeof(struct stat_block); |
1da177e4 LT |
704 | mac_control->stats_mem = pci_alloc_consistent |
705 | (nic->pdev, size, &mac_control->stats_mem_phy); | |
706 | ||
707 | if (!mac_control->stats_mem) { | |
20346722 K |
708 | /* |
709 | * In case of failure, free_shared_mem() is called, which | |
710 | * should free any memory that was alloced till the | |
1da177e4 LT |
711 | * failure happened. |
712 | */ | |
713 | return -ENOMEM; | |
714 | } | |
715 | mac_control->stats_mem_sz = size; | |
716 | ||
717 | tmp_v_addr = mac_control->stats_mem; | |
1ee6dd77 | 718 | mac_control->stats_info = (struct stat_block *) tmp_v_addr; |
1da177e4 | 719 | memset(tmp_v_addr, 0, size); |
1da177e4 LT |
720 | DBG_PRINT(INIT_DBG, "%s:Ring Mem PHY: 0x%llx\n", dev->name, |
721 | (unsigned long long) tmp_p_addr); | |
722 | ||
723 | return SUCCESS; | |
724 | } | |
725 | ||
20346722 K |
726 | /** |
727 | * free_shared_mem - Free the allocated Memory | |
1da177e4 LT |
728 | * @nic: Device private variable. |
729 | * Description: This function is to free all memory locations allocated by | |
730 | * the init_shared_mem() function and return it to the kernel. | |
731 | */ | |
732 | ||
733 | static void free_shared_mem(struct s2io_nic *nic) | |
734 | { | |
735 | int i, j, blk_cnt, size; | |
736 | void *tmp_v_addr; | |
737 | dma_addr_t tmp_p_addr; | |
1ee6dd77 | 738 | struct mac_info *mac_control; |
1da177e4 LT |
739 | struct config_param *config; |
740 | int lst_size, lst_per_page; | |
776bd20f | 741 | struct net_device *dev = nic->dev; |
1da177e4 LT |
742 | |
743 | if (!nic) | |
744 | return; | |
745 | ||
746 | mac_control = &nic->mac_control; | |
747 | config = &nic->config; | |
748 | ||
1ee6dd77 | 749 | lst_size = (sizeof(struct TxD) * config->max_txds); |
1da177e4 LT |
750 | lst_per_page = PAGE_SIZE / lst_size; |
751 | ||
752 | for (i = 0; i < config->tx_fifo_num; i++) { | |
753 | int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len, | |
754 | lst_per_page); | |
755 | for (j = 0; j < page_num; j++) { | |
756 | int mem_blks = (j * lst_per_page); | |
776bd20f | 757 | if (!mac_control->fifos[i].list_info) |
6aa20a22 | 758 | return; |
776bd20f | 759 | if (!mac_control->fifos[i].list_info[mem_blks]. |
760 | list_virt_addr) | |
1da177e4 LT |
761 | break; |
762 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
20346722 K |
763 | mac_control->fifos[i]. |
764 | list_info[mem_blks]. | |
1da177e4 | 765 | list_virt_addr, |
20346722 K |
766 | mac_control->fifos[i]. |
767 | list_info[mem_blks]. | |
1da177e4 LT |
768 | list_phy_addr); |
769 | } | |
776bd20f | 770 | /* If we got a zero DMA address during allocation, |
771 | * free the page now | |
772 | */ | |
773 | if (mac_control->zerodma_virt_addr) { | |
774 | pci_free_consistent(nic->pdev, PAGE_SIZE, | |
775 | mac_control->zerodma_virt_addr, | |
776 | (dma_addr_t)0); | |
6aa20a22 | 777 | DBG_PRINT(INIT_DBG, |
6b4d617d AM |
778 | "%s: Freeing TxDL with zero DMA addr. ", |
779 | dev->name); | |
780 | DBG_PRINT(INIT_DBG, "Virtual address %p\n", | |
781 | mac_control->zerodma_virt_addr); | |
776bd20f | 782 | } |
20346722 | 783 | kfree(mac_control->fifos[i].list_info); |
1da177e4 LT |
784 | } |
785 | ||
1da177e4 | 786 | size = SIZE_OF_BLOCK; |
1da177e4 | 787 | for (i = 0; i < config->rx_ring_num; i++) { |
20346722 | 788 | blk_cnt = mac_control->rings[i].block_count; |
1da177e4 | 789 | for (j = 0; j < blk_cnt; j++) { |
20346722 K |
790 | tmp_v_addr = mac_control->rings[i].rx_blocks[j]. |
791 | block_virt_addr; | |
792 | tmp_p_addr = mac_control->rings[i].rx_blocks[j]. | |
793 | block_dma_addr; | |
1da177e4 LT |
794 | if (tmp_v_addr == NULL) |
795 | break; | |
796 | pci_free_consistent(nic->pdev, size, | |
797 | tmp_v_addr, tmp_p_addr); | |
da6971d8 | 798 | kfree(mac_control->rings[i].rx_blocks[j].rxds); |
1da177e4 LT |
799 | } |
800 | } | |
801 | ||
da6971d8 AR |
802 | if (nic->rxd_mode >= RXD_MODE_3A) { |
803 | /* Freeing buffer storage addresses in 2BUFF mode. */ | |
804 | for (i = 0; i < config->rx_ring_num; i++) { | |
805 | blk_cnt = config->rx_cfg[i].num_rxd / | |
806 | (rxd_count[nic->rxd_mode] + 1); | |
807 | for (j = 0; j < blk_cnt; j++) { | |
808 | int k = 0; | |
809 | if (!mac_control->rings[i].ba[j]) | |
810 | continue; | |
811 | while (k != rxd_count[nic->rxd_mode]) { | |
1ee6dd77 | 812 | struct buffAdd *ba = |
da6971d8 AR |
813 | &mac_control->rings[i].ba[j][k]; |
814 | kfree(ba->ba_0_org); | |
815 | kfree(ba->ba_1_org); | |
816 | k++; | |
817 | } | |
818 | kfree(mac_control->rings[i].ba[j]); | |
1da177e4 | 819 | } |
da6971d8 | 820 | kfree(mac_control->rings[i].ba); |
1da177e4 | 821 | } |
1da177e4 | 822 | } |
1da177e4 LT |
823 | |
824 | if (mac_control->stats_mem) { | |
825 | pci_free_consistent(nic->pdev, | |
826 | mac_control->stats_mem_sz, | |
827 | mac_control->stats_mem, | |
828 | mac_control->stats_mem_phy); | |
829 | } | |
fed5eccd AR |
830 | if (nic->ufo_in_band_v) |
831 | kfree(nic->ufo_in_band_v); | |
1da177e4 LT |
832 | } |
833 | ||
541ae68f K |
834 | /** |
835 | * s2io_verify_pci_mode - | |
836 | */ | |
837 | ||
1ee6dd77 | 838 | static int s2io_verify_pci_mode(struct s2io_nic *nic) |
541ae68f | 839 | { |
1ee6dd77 | 840 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
841 | register u64 val64 = 0; |
842 | int mode; | |
843 | ||
844 | val64 = readq(&bar0->pci_mode); | |
845 | mode = (u8)GET_PCI_MODE(val64); | |
846 | ||
847 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
848 | return -1; /* Unknown PCI mode */ | |
849 | return mode; | |
850 | } | |
851 | ||
c92ca04b AR |
852 | #define NEC_VENID 0x1033 |
853 | #define NEC_DEVID 0x0125 | |
854 | static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev) | |
855 | { | |
856 | struct pci_dev *tdev = NULL; | |
26d36b64 AC |
857 | while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { |
858 | if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) { | |
c92ca04b | 859 | if (tdev->bus == s2io_pdev->bus->parent) |
26d36b64 | 860 | pci_dev_put(tdev); |
c92ca04b AR |
861 | return 1; |
862 | } | |
863 | } | |
864 | return 0; | |
865 | } | |
541ae68f | 866 | |
7b32a312 | 867 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f K |
868 | /** |
869 | * s2io_print_pci_mode - | |
870 | */ | |
1ee6dd77 | 871 | static int s2io_print_pci_mode(struct s2io_nic *nic) |
541ae68f | 872 | { |
1ee6dd77 | 873 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
541ae68f K |
874 | register u64 val64 = 0; |
875 | int mode; | |
876 | struct config_param *config = &nic->config; | |
877 | ||
878 | val64 = readq(&bar0->pci_mode); | |
879 | mode = (u8)GET_PCI_MODE(val64); | |
880 | ||
881 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
882 | return -1; /* Unknown PCI mode */ | |
883 | ||
c92ca04b AR |
884 | config->bus_speed = bus_speed[mode]; |
885 | ||
886 | if (s2io_on_nec_bridge(nic->pdev)) { | |
887 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
888 | nic->dev->name); | |
889 | return mode; | |
890 | } | |
891 | ||
541ae68f K |
892 | if (val64 & PCI_MODE_32_BITS) { |
893 | DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name); | |
894 | } else { | |
895 | DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name); | |
896 | } | |
897 | ||
898 | switch(mode) { | |
899 | case PCI_MODE_PCI_33: | |
900 | DBG_PRINT(ERR_DBG, "33MHz PCI bus\n"); | |
541ae68f K |
901 | break; |
902 | case PCI_MODE_PCI_66: | |
903 | DBG_PRINT(ERR_DBG, "66MHz PCI bus\n"); | |
541ae68f K |
904 | break; |
905 | case PCI_MODE_PCIX_M1_66: | |
906 | DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n"); | |
541ae68f K |
907 | break; |
908 | case PCI_MODE_PCIX_M1_100: | |
909 | DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n"); | |
541ae68f K |
910 | break; |
911 | case PCI_MODE_PCIX_M1_133: | |
912 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n"); | |
541ae68f K |
913 | break; |
914 | case PCI_MODE_PCIX_M2_66: | |
915 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n"); | |
541ae68f K |
916 | break; |
917 | case PCI_MODE_PCIX_M2_100: | |
918 | DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n"); | |
541ae68f K |
919 | break; |
920 | case PCI_MODE_PCIX_M2_133: | |
921 | DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n"); | |
541ae68f K |
922 | break; |
923 | default: | |
924 | return -1; /* Unsupported bus speed */ | |
925 | } | |
926 | ||
927 | return mode; | |
928 | } | |
929 | ||
20346722 K |
930 | /** |
931 | * init_nic - Initialization of hardware | |
1da177e4 | 932 | * @nic: device peivate variable |
20346722 K |
933 | * Description: The function sequentially configures every block |
934 | * of the H/W from their reset values. | |
935 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
936 | * '-1' on failure (endian settings incorrect). |
937 | */ | |
938 | ||
939 | static int init_nic(struct s2io_nic *nic) | |
940 | { | |
1ee6dd77 | 941 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
942 | struct net_device *dev = nic->dev; |
943 | register u64 val64 = 0; | |
944 | void __iomem *add; | |
945 | u32 time; | |
946 | int i, j; | |
1ee6dd77 | 947 | struct mac_info *mac_control; |
1da177e4 | 948 | struct config_param *config; |
c92ca04b | 949 | int dtx_cnt = 0; |
1da177e4 | 950 | unsigned long long mem_share; |
20346722 | 951 | int mem_size; |
1da177e4 LT |
952 | |
953 | mac_control = &nic->mac_control; | |
954 | config = &nic->config; | |
955 | ||
5e25b9dd | 956 | /* to set the swapper controle on the card */ |
20346722 | 957 | if(s2io_set_swapper(nic)) { |
1da177e4 LT |
958 | DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); |
959 | return -1; | |
960 | } | |
961 | ||
541ae68f K |
962 | /* |
963 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
964 | */ | |
965 | if (nic->device_type & XFRAME_II_DEVICE) { | |
966 | val64 = 0xA500000000ULL; | |
967 | writeq(val64, &bar0->sw_reset); | |
968 | msleep(500); | |
969 | val64 = readq(&bar0->sw_reset); | |
970 | } | |
971 | ||
1da177e4 LT |
972 | /* Remove XGXS from reset state */ |
973 | val64 = 0; | |
974 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 975 | msleep(500); |
20346722 | 976 | val64 = readq(&bar0->sw_reset); |
1da177e4 LT |
977 | |
978 | /* Enable Receiving broadcasts */ | |
979 | add = &bar0->mac_cfg; | |
980 | val64 = readq(&bar0->mac_cfg); | |
981 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
982 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
983 | writel((u32) val64, add); | |
984 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
985 | writel((u32) (val64 >> 32), (add + 4)); | |
986 | ||
987 | /* Read registers in all blocks */ | |
988 | val64 = readq(&bar0->mac_int_mask); | |
989 | val64 = readq(&bar0->mc_int_mask); | |
990 | val64 = readq(&bar0->xgxs_int_mask); | |
991 | ||
992 | /* Set MTU */ | |
993 | val64 = dev->mtu; | |
994 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
995 | ||
541ae68f K |
996 | if (nic->device_type & XFRAME_II_DEVICE) { |
997 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 998 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 999 | &bar0->dtx_control, UF); |
541ae68f K |
1000 | if (dtx_cnt & 0x1) |
1001 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1002 | dtx_cnt++; |
1003 | } | |
541ae68f | 1004 | } else { |
c92ca04b AR |
1005 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1006 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1007 | &bar0->dtx_control, UF); | |
1008 | val64 = readq(&bar0->dtx_control); | |
1009 | dtx_cnt++; | |
1da177e4 LT |
1010 | } |
1011 | } | |
1012 | ||
1013 | /* Tx DMA Initialization */ | |
1014 | val64 = 0; | |
1015 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1016 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1017 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1018 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1019 | ||
1020 | ||
1021 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { | |
1022 | val64 |= | |
1023 | vBIT(config->tx_cfg[i].fifo_len - 1, ((i * 32) + 19), | |
1024 | 13) | vBIT(config->tx_cfg[i].fifo_priority, | |
1025 | ((i * 32) + 5), 3); | |
1026 | ||
1027 | if (i == (config->tx_fifo_num - 1)) { | |
1028 | if (i % 2 == 0) | |
1029 | i++; | |
1030 | } | |
1031 | ||
1032 | switch (i) { | |
1033 | case 1: | |
1034 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1035 | val64 = 0; | |
1036 | break; | |
1037 | case 3: | |
1038 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1039 | val64 = 0; | |
1040 | break; | |
1041 | case 5: | |
1042 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1043 | val64 = 0; | |
1044 | break; | |
1045 | case 7: | |
1046 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1047 | break; | |
1048 | } | |
1049 | } | |
1050 | ||
5e25b9dd K |
1051 | /* |
1052 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1053 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1054 | */ | |
541ae68f K |
1055 | if ((nic->device_type == XFRAME_I_DEVICE) && |
1056 | (get_xena_rev_id(nic->pdev) < 4)) | |
5e25b9dd K |
1057 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1058 | ||
1da177e4 LT |
1059 | val64 = readq(&bar0->tx_fifo_partition_0); |
1060 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
1061 | &bar0->tx_fifo_partition_0, (unsigned long long) val64); | |
1062 | ||
20346722 K |
1063 | /* |
1064 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1065 | * integrity checking. |
1066 | */ | |
1067 | val64 = readq(&bar0->tx_pa_cfg); | |
1068 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1069 | TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR; | |
1070 | writeq(val64, &bar0->tx_pa_cfg); | |
1071 | ||
1072 | /* Rx DMA intialization. */ | |
1073 | val64 = 0; | |
1074 | for (i = 0; i < config->rx_ring_num; i++) { | |
1075 | val64 |= | |
1076 | vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)), | |
1077 | 3); | |
1078 | } | |
1079 | writeq(val64, &bar0->rx_queue_priority); | |
1080 | ||
20346722 K |
1081 | /* |
1082 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1083 | * configured Rings. |
1084 | */ | |
1085 | val64 = 0; | |
541ae68f K |
1086 | if (nic->device_type & XFRAME_II_DEVICE) |
1087 | mem_size = 32; | |
1088 | else | |
1089 | mem_size = 64; | |
1090 | ||
1da177e4 LT |
1091 | for (i = 0; i < config->rx_ring_num; i++) { |
1092 | switch (i) { | |
1093 | case 0: | |
20346722 K |
1094 | mem_share = (mem_size / config->rx_ring_num + |
1095 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1096 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1097 | continue; | |
1098 | case 1: | |
20346722 | 1099 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1100 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1101 | continue; | |
1102 | case 2: | |
20346722 | 1103 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1104 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1105 | continue; | |
1106 | case 3: | |
20346722 | 1107 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1108 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1109 | continue; | |
1110 | case 4: | |
20346722 | 1111 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1112 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1113 | continue; | |
1114 | case 5: | |
20346722 | 1115 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1116 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1117 | continue; | |
1118 | case 6: | |
20346722 | 1119 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1120 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1121 | continue; | |
1122 | case 7: | |
20346722 | 1123 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1124 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1125 | continue; | |
1126 | } | |
1127 | } | |
1128 | writeq(val64, &bar0->rx_queue_cfg); | |
1129 | ||
20346722 | 1130 | /* |
5e25b9dd K |
1131 | * Filling Tx round robin registers |
1132 | * as per the number of FIFOs | |
1da177e4 | 1133 | */ |
5e25b9dd K |
1134 | switch (config->tx_fifo_num) { |
1135 | case 1: | |
1136 | val64 = 0x0000000000000000ULL; | |
1137 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1138 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1139 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1140 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1141 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1142 | break; | |
1143 | case 2: | |
1144 | val64 = 0x0000010000010000ULL; | |
1145 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1146 | val64 = 0x0100000100000100ULL; | |
1147 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1148 | val64 = 0x0001000001000001ULL; | |
1149 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1150 | val64 = 0x0000010000010000ULL; | |
1151 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1152 | val64 = 0x0100000000000000ULL; | |
1153 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1154 | break; | |
1155 | case 3: | |
1156 | val64 = 0x0001000102000001ULL; | |
1157 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1158 | val64 = 0x0001020000010001ULL; | |
1159 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1160 | val64 = 0x0200000100010200ULL; | |
1161 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1162 | val64 = 0x0001000102000001ULL; | |
1163 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1164 | val64 = 0x0001020000000000ULL; | |
1165 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1166 | break; | |
1167 | case 4: | |
1168 | val64 = 0x0001020300010200ULL; | |
1169 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1170 | val64 = 0x0100000102030001ULL; | |
1171 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1172 | val64 = 0x0200010000010203ULL; | |
1173 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1174 | val64 = 0x0001020001000001ULL; | |
1175 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1176 | val64 = 0x0203000100000000ULL; | |
1177 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1178 | break; | |
1179 | case 5: | |
1180 | val64 = 0x0001000203000102ULL; | |
1181 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1182 | val64 = 0x0001020001030004ULL; | |
1183 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1184 | val64 = 0x0001000203000102ULL; | |
1185 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1186 | val64 = 0x0001020001030004ULL; | |
1187 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1188 | val64 = 0x0001000000000000ULL; | |
1189 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1190 | break; | |
1191 | case 6: | |
1192 | val64 = 0x0001020304000102ULL; | |
1193 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1194 | val64 = 0x0304050001020001ULL; | |
1195 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1196 | val64 = 0x0203000100000102ULL; | |
1197 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1198 | val64 = 0x0304000102030405ULL; | |
1199 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1200 | val64 = 0x0001000200000000ULL; | |
1201 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1202 | break; | |
1203 | case 7: | |
1204 | val64 = 0x0001020001020300ULL; | |
1205 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1206 | val64 = 0x0102030400010203ULL; | |
1207 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1208 | val64 = 0x0405060001020001ULL; | |
1209 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1210 | val64 = 0x0304050000010200ULL; | |
1211 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1212 | val64 = 0x0102030000000000ULL; | |
1213 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1214 | break; | |
1215 | case 8: | |
1216 | val64 = 0x0001020300040105ULL; | |
1217 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1218 | val64 = 0x0200030106000204ULL; | |
1219 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1220 | val64 = 0x0103000502010007ULL; | |
1221 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1222 | val64 = 0x0304010002060500ULL; | |
1223 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1224 | val64 = 0x0103020400000000ULL; | |
1225 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1226 | break; | |
1227 | } | |
1228 | ||
b41477f3 | 1229 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1230 | val64 = readq(&bar0->tx_fifo_partition_0); |
1231 | val64 |= (TX_FIFO_PARTITION_EN); | |
1232 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1233 | ||
5e25b9dd K |
1234 | /* Filling the Rx round robin registers as per the |
1235 | * number of Rings and steering based on QoS. | |
1236 | */ | |
1237 | switch (config->rx_ring_num) { | |
1238 | case 1: | |
1239 | val64 = 0x8080808080808080ULL; | |
1240 | writeq(val64, &bar0->rts_qos_steering); | |
1241 | break; | |
1242 | case 2: | |
1243 | val64 = 0x0000010000010000ULL; | |
1244 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1245 | val64 = 0x0100000100000100ULL; | |
1246 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1247 | val64 = 0x0001000001000001ULL; | |
1248 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1249 | val64 = 0x0000010000010000ULL; | |
1250 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1251 | val64 = 0x0100000000000000ULL; | |
1252 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1253 | ||
1254 | val64 = 0x8080808040404040ULL; | |
1255 | writeq(val64, &bar0->rts_qos_steering); | |
1256 | break; | |
1257 | case 3: | |
1258 | val64 = 0x0001000102000001ULL; | |
1259 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1260 | val64 = 0x0001020000010001ULL; | |
1261 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1262 | val64 = 0x0200000100010200ULL; | |
1263 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1264 | val64 = 0x0001000102000001ULL; | |
1265 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1266 | val64 = 0x0001020000000000ULL; | |
1267 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1268 | ||
1269 | val64 = 0x8080804040402020ULL; | |
1270 | writeq(val64, &bar0->rts_qos_steering); | |
1271 | break; | |
1272 | case 4: | |
1273 | val64 = 0x0001020300010200ULL; | |
1274 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1275 | val64 = 0x0100000102030001ULL; | |
1276 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1277 | val64 = 0x0200010000010203ULL; | |
1278 | writeq(val64, &bar0->rx_w_round_robin_2); | |
6aa20a22 | 1279 | val64 = 0x0001020001000001ULL; |
5e25b9dd K |
1280 | writeq(val64, &bar0->rx_w_round_robin_3); |
1281 | val64 = 0x0203000100000000ULL; | |
1282 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1283 | ||
1284 | val64 = 0x8080404020201010ULL; | |
1285 | writeq(val64, &bar0->rts_qos_steering); | |
1286 | break; | |
1287 | case 5: | |
1288 | val64 = 0x0001000203000102ULL; | |
1289 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1290 | val64 = 0x0001020001030004ULL; | |
1291 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1292 | val64 = 0x0001000203000102ULL; | |
1293 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1294 | val64 = 0x0001020001030004ULL; | |
1295 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1296 | val64 = 0x0001000000000000ULL; | |
1297 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1298 | ||
1299 | val64 = 0x8080404020201008ULL; | |
1300 | writeq(val64, &bar0->rts_qos_steering); | |
1301 | break; | |
1302 | case 6: | |
1303 | val64 = 0x0001020304000102ULL; | |
1304 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1305 | val64 = 0x0304050001020001ULL; | |
1306 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1307 | val64 = 0x0203000100000102ULL; | |
1308 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1309 | val64 = 0x0304000102030405ULL; | |
1310 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1311 | val64 = 0x0001000200000000ULL; | |
1312 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1313 | ||
1314 | val64 = 0x8080404020100804ULL; | |
1315 | writeq(val64, &bar0->rts_qos_steering); | |
1316 | break; | |
1317 | case 7: | |
1318 | val64 = 0x0001020001020300ULL; | |
1319 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1320 | val64 = 0x0102030400010203ULL; | |
1321 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1322 | val64 = 0x0405060001020001ULL; | |
1323 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1324 | val64 = 0x0304050000010200ULL; | |
1325 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1326 | val64 = 0x0102030000000000ULL; | |
1327 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1328 | ||
1329 | val64 = 0x8080402010080402ULL; | |
1330 | writeq(val64, &bar0->rts_qos_steering); | |
1331 | break; | |
1332 | case 8: | |
1333 | val64 = 0x0001020300040105ULL; | |
1334 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1335 | val64 = 0x0200030106000204ULL; | |
1336 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1337 | val64 = 0x0103000502010007ULL; | |
1338 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1339 | val64 = 0x0304010002060500ULL; | |
1340 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1341 | val64 = 0x0103020400000000ULL; | |
1342 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1343 | ||
1344 | val64 = 0x8040201008040201ULL; | |
1345 | writeq(val64, &bar0->rts_qos_steering); | |
1346 | break; | |
1347 | } | |
1da177e4 LT |
1348 | |
1349 | /* UDP Fix */ | |
1350 | val64 = 0; | |
20346722 | 1351 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1352 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1353 | ||
5e25b9dd K |
1354 | /* Set the default rts frame length for the rings configured */ |
1355 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1356 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1357 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1358 | ||
1359 | /* Set the frame length for the configured rings | |
1360 | * desired by the user | |
1361 | */ | |
1362 | for (i = 0; i < config->rx_ring_num; i++) { | |
1363 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1364 | * specified frame length steering. | |
1365 | * If the user provides the frame length then program | |
1366 | * the rts_frm_len register for those values or else | |
1367 | * leave it as it is. | |
1368 | */ | |
1369 | if (rts_frm_len[i] != 0) { | |
1370 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
1371 | &bar0->rts_frm_len_n[i]); | |
1372 | } | |
1373 | } | |
1da177e4 | 1374 | |
20346722 | 1375 | /* Program statistics memory */ |
1da177e4 | 1376 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1377 | |
541ae68f K |
1378 | if (nic->device_type == XFRAME_II_DEVICE) { |
1379 | val64 = STAT_BC(0x320); | |
1380 | writeq(val64, &bar0->stat_byte_cnt); | |
1381 | } | |
1382 | ||
20346722 | 1383 | /* |
1da177e4 LT |
1384 | * Initializing the sampling rate for the device to calculate the |
1385 | * bandwidth utilization. | |
1386 | */ | |
1387 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
1388 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); | |
1389 | writeq(val64, &bar0->mac_link_util); | |
1390 | ||
1391 | ||
20346722 K |
1392 | /* |
1393 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1394 | * Scheme. |
1395 | */ | |
20346722 K |
1396 | /* |
1397 | * TTI Initialization. Default Tx timer gets us about | |
1da177e4 LT |
1398 | * 250 interrupts per sec. Continuous interrupts are enabled |
1399 | * by default. | |
1400 | */ | |
541ae68f K |
1401 | if (nic->device_type == XFRAME_II_DEVICE) { |
1402 | int count = (nic->config.bus_speed * 125)/2; | |
1403 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1404 | } else { | |
1405 | ||
1406 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1407 | } | |
1408 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
1da177e4 | 1409 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
5e25b9dd | 1410 | TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN; |
541ae68f K |
1411 | if (use_continuous_tx_intrs) |
1412 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
1da177e4 LT |
1413 | writeq(val64, &bar0->tti_data1_mem); |
1414 | ||
1415 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1416 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
19a60522 | 1417 | TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80); |
1da177e4 LT |
1418 | writeq(val64, &bar0->tti_data2_mem); |
1419 | ||
1420 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1421 | writeq(val64, &bar0->tti_command_mem); | |
1422 | ||
20346722 | 1423 | /* |
1da177e4 LT |
1424 | * Once the operation completes, the Strobe bit of the command |
1425 | * register will be reset. We poll for this particular condition | |
1426 | * We wait for a maximum of 500ms for the operation to complete, | |
1427 | * if it's not complete by then we return error. | |
1428 | */ | |
1429 | time = 0; | |
1430 | while (TRUE) { | |
1431 | val64 = readq(&bar0->tti_command_mem); | |
1432 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1433 | break; | |
1434 | } | |
1435 | if (time > 10) { | |
1436 | DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", | |
1437 | dev->name); | |
1438 | return -1; | |
1439 | } | |
1440 | msleep(50); | |
1441 | time++; | |
1442 | } | |
1443 | ||
b6e3f982 K |
1444 | if (nic->config.bimodal) { |
1445 | int k = 0; | |
1446 | for (k = 0; k < config->rx_ring_num; k++) { | |
1447 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1448 | val64 |= TTI_CMD_MEM_OFFSET(0x38+k); | |
1449 | writeq(val64, &bar0->tti_command_mem); | |
541ae68f | 1450 | |
541ae68f | 1451 | /* |
b6e3f982 K |
1452 | * Once the operation completes, the Strobe bit of the command |
1453 | * register will be reset. We poll for this particular condition | |
1454 | * We wait for a maximum of 500ms for the operation to complete, | |
1455 | * if it's not complete by then we return error. | |
1456 | */ | |
1457 | time = 0; | |
1458 | while (TRUE) { | |
1459 | val64 = readq(&bar0->tti_command_mem); | |
1460 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1461 | break; | |
1462 | } | |
1463 | if (time > 10) { | |
1464 | DBG_PRINT(ERR_DBG, | |
1465 | "%s: TTI init Failed\n", | |
1466 | dev->name); | |
1467 | return -1; | |
1468 | } | |
1469 | time++; | |
1470 | msleep(50); | |
1471 | } | |
1472 | } | |
541ae68f | 1473 | } else { |
1da177e4 | 1474 | |
b6e3f982 K |
1475 | /* RTI Initialization */ |
1476 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1477 | /* | |
1478 | * Programmed to generate Apprx 500 Intrs per | |
1479 | * second | |
1480 | */ | |
1481 | int count = (nic->config.bus_speed * 125)/4; | |
1482 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1483 | } else { | |
1484 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1485 | } | |
1486 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
1487 | RTI_DATA1_MEM_RX_URNG_B(0x10) | | |
1488 | RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
1da177e4 | 1489 | |
b6e3f982 | 1490 | writeq(val64, &bar0->rti_data1_mem); |
1da177e4 | 1491 | |
b6e3f982 | 1492 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | |
cc6e7c44 RA |
1493 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; |
1494 | if (nic->intr_type == MSI_X) | |
1495 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \ | |
1496 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
1497 | else | |
1498 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \ | |
1499 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
b6e3f982 | 1500 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1501 | |
b6e3f982 K |
1502 | for (i = 0; i < config->rx_ring_num; i++) { |
1503 | val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD | |
1504 | | RTI_CMD_MEM_OFFSET(i); | |
1505 | writeq(val64, &bar0->rti_command_mem); | |
1506 | ||
1507 | /* | |
1508 | * Once the operation completes, the Strobe bit of the | |
1509 | * command register will be reset. We poll for this | |
1510 | * particular condition. We wait for a maximum of 500ms | |
1511 | * for the operation to complete, if it's not complete | |
1512 | * by then we return error. | |
1513 | */ | |
1514 | time = 0; | |
1515 | while (TRUE) { | |
1516 | val64 = readq(&bar0->rti_command_mem); | |
1517 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1518 | break; | |
1519 | } | |
1520 | if (time > 10) { | |
1521 | DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", | |
1522 | dev->name); | |
1523 | return -1; | |
1524 | } | |
1525 | time++; | |
1526 | msleep(50); | |
1527 | } | |
1da177e4 | 1528 | } |
1da177e4 LT |
1529 | } |
1530 | ||
20346722 K |
1531 | /* |
1532 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1533 | * the 8 Queues on Rx side. |
1534 | */ | |
1535 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1536 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1537 | ||
1538 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1539 | add = &bar0->mac_cfg; |
1da177e4 LT |
1540 | val64 = readq(&bar0->mac_cfg); |
1541 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1542 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1543 | writel((u32) (val64), add); | |
1544 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1545 | writel((u32) (val64 >> 32), (add + 4)); | |
1546 | val64 = readq(&bar0->mac_cfg); | |
1547 | ||
7d3d0439 RA |
1548 | /* Enable FCS stripping by adapter */ |
1549 | add = &bar0->mac_cfg; | |
1550 | val64 = readq(&bar0->mac_cfg); | |
1551 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1552 | if (nic->device_type == XFRAME_II_DEVICE) | |
1553 | writeq(val64, &bar0->mac_cfg); | |
1554 | else { | |
1555 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1556 | writel((u32) (val64), add); | |
1557 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1558 | writel((u32) (val64 >> 32), (add + 4)); | |
1559 | } | |
1560 | ||
20346722 K |
1561 | /* |
1562 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1563 | * generated by xena. |
1564 | */ | |
1565 | val64 = readq(&bar0->rmac_pause_cfg); | |
1566 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1567 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1568 | writeq(val64, &bar0->rmac_pause_cfg); | |
1569 | ||
20346722 | 1570 | /* |
1da177e4 LT |
1571 | * Set the Threshold Limit for Generating the pause frame |
1572 | * If the amount of data in any Queue exceeds ratio of | |
1573 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1574 | * pause frame is generated | |
1575 | */ | |
1576 | val64 = 0; | |
1577 | for (i = 0; i < 4; i++) { | |
1578 | val64 |= | |
1579 | (((u64) 0xFF00 | nic->mac_control. | |
1580 | mc_pause_threshold_q0q3) | |
1581 | << (i * 2 * 8)); | |
1582 | } | |
1583 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1584 | ||
1585 | val64 = 0; | |
1586 | for (i = 0; i < 4; i++) { | |
1587 | val64 |= | |
1588 | (((u64) 0xFF00 | nic->mac_control. | |
1589 | mc_pause_threshold_q4q7) | |
1590 | << (i * 2 * 8)); | |
1591 | } | |
1592 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1593 | ||
20346722 K |
1594 | /* |
1595 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1596 | * exceeded the limit pointed by shared_splits |
1597 | */ | |
1598 | val64 = readq(&bar0->pic_control); | |
1599 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1600 | writeq(val64, &bar0->pic_control); | |
1601 | ||
863c11a9 AR |
1602 | if (nic->config.bus_speed == 266) { |
1603 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1604 | writeq(0x0, &bar0->read_retry_delay); | |
1605 | writeq(0x0, &bar0->write_retry_delay); | |
1606 | } | |
1607 | ||
541ae68f K |
1608 | /* |
1609 | * Programming the Herc to split every write transaction | |
1610 | * that does not start on an ADB to reduce disconnects. | |
1611 | */ | |
1612 | if (nic->device_type == XFRAME_II_DEVICE) { | |
19a60522 SS |
1613 | val64 = FAULT_BEHAVIOUR | EXT_REQ_EN | |
1614 | MISC_LINK_STABILITY_PRD(3); | |
863c11a9 AR |
1615 | writeq(val64, &bar0->misc_control); |
1616 | val64 = readq(&bar0->pic_control2); | |
1617 | val64 &= ~(BIT(13)|BIT(14)|BIT(15)); | |
1618 | writeq(val64, &bar0->pic_control2); | |
541ae68f | 1619 | } |
c92ca04b AR |
1620 | if (strstr(nic->product_name, "CX4")) { |
1621 | val64 = TMAC_AVG_IPG(0x17); | |
1622 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d K |
1623 | } |
1624 | ||
1da177e4 LT |
1625 | return SUCCESS; |
1626 | } | |
a371a07d K |
1627 | #define LINK_UP_DOWN_INTERRUPT 1 |
1628 | #define MAC_RMAC_ERR_TIMER 2 | |
1629 | ||
1ee6dd77 | 1630 | static int s2io_link_fault_indication(struct s2io_nic *nic) |
a371a07d | 1631 | { |
cc6e7c44 RA |
1632 | if (nic->intr_type != INTA) |
1633 | return MAC_RMAC_ERR_TIMER; | |
a371a07d K |
1634 | if (nic->device_type == XFRAME_II_DEVICE) |
1635 | return LINK_UP_DOWN_INTERRUPT; | |
1636 | else | |
1637 | return MAC_RMAC_ERR_TIMER; | |
1638 | } | |
1da177e4 | 1639 | |
20346722 K |
1640 | /** |
1641 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1642 | * @nic: device private variable, |
1643 | * @mask: A mask indicating which Intr block must be modified and, | |
1644 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1645 | * Description: This function will either disable or enable the interrupts | |
20346722 K |
1646 | * depending on the flag argument. The mask argument can be used to |
1647 | * enable/disable any Intr block. | |
1da177e4 LT |
1648 | * Return Value: NONE. |
1649 | */ | |
1650 | ||
1651 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1652 | { | |
1ee6dd77 | 1653 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1654 | register u64 val64 = 0, temp64 = 0; |
1655 | ||
1656 | /* Top level interrupt classification */ | |
1657 | /* PIC Interrupts */ | |
1658 | if ((mask & (TX_PIC_INTR | RX_PIC_INTR))) { | |
1659 | /* Enable PIC Intrs in the general intr mask register */ | |
a113ae06 | 1660 | val64 = TXPIC_INT_M; |
1da177e4 LT |
1661 | if (flag == ENABLE_INTRS) { |
1662 | temp64 = readq(&bar0->general_int_mask); | |
1663 | temp64 &= ~((u64) val64); | |
1664 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1665 | /* |
a371a07d | 1666 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 1667 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 K |
1668 | * interrupts for now. |
1669 | * TODO | |
1da177e4 | 1670 | */ |
a371a07d K |
1671 | if (s2io_link_fault_indication(nic) == |
1672 | LINK_UP_DOWN_INTERRUPT ) { | |
1673 | temp64 = readq(&bar0->pic_int_mask); | |
1674 | temp64 &= ~((u64) PIC_INT_GPIO); | |
1675 | writeq(temp64, &bar0->pic_int_mask); | |
1676 | temp64 = readq(&bar0->gpio_int_mask); | |
1677 | temp64 &= ~((u64) GPIO_INT_MASK_LINK_UP); | |
1678 | writeq(temp64, &bar0->gpio_int_mask); | |
1679 | } else { | |
1680 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1681 | } | |
20346722 | 1682 | /* |
1da177e4 LT |
1683 | * No MSI Support is available presently, so TTI and |
1684 | * RTI interrupts are also disabled. | |
1685 | */ | |
1686 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1687 | /* |
1688 | * Disable PIC Intrs in the general | |
1689 | * intr mask register | |
1da177e4 LT |
1690 | */ |
1691 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1692 | temp64 = readq(&bar0->general_int_mask); | |
1693 | val64 |= temp64; | |
1694 | writeq(val64, &bar0->general_int_mask); | |
1695 | } | |
1696 | } | |
1697 | ||
1da177e4 LT |
1698 | /* MAC Interrupts */ |
1699 | /* Enabling/Disabling MAC interrupts */ | |
1700 | if (mask & (TX_MAC_INTR | RX_MAC_INTR)) { | |
1701 | val64 = TXMAC_INT_M | RXMAC_INT_M; | |
1702 | if (flag == ENABLE_INTRS) { | |
1703 | temp64 = readq(&bar0->general_int_mask); | |
1704 | temp64 &= ~((u64) val64); | |
1705 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1706 | /* |
1707 | * All MAC block error interrupts are disabled for now | |
1da177e4 LT |
1708 | * TODO |
1709 | */ | |
1da177e4 | 1710 | } else if (flag == DISABLE_INTRS) { |
20346722 K |
1711 | /* |
1712 | * Disable MAC Intrs in the general intr mask register | |
1da177e4 LT |
1713 | */ |
1714 | writeq(DISABLE_ALL_INTRS, &bar0->mac_int_mask); | |
1715 | writeq(DISABLE_ALL_INTRS, | |
1716 | &bar0->mac_rmac_err_mask); | |
1717 | ||
1718 | temp64 = readq(&bar0->general_int_mask); | |
1719 | val64 |= temp64; | |
1720 | writeq(val64, &bar0->general_int_mask); | |
1721 | } | |
1722 | } | |
1723 | ||
1da177e4 LT |
1724 | /* Tx traffic interrupts */ |
1725 | if (mask & TX_TRAFFIC_INTR) { | |
1726 | val64 = TXTRAFFIC_INT_M; | |
1727 | if (flag == ENABLE_INTRS) { | |
1728 | temp64 = readq(&bar0->general_int_mask); | |
1729 | temp64 &= ~((u64) val64); | |
1730 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1731 | /* |
1da177e4 | 1732 | * Enable all the Tx side interrupts |
20346722 | 1733 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
1734 | */ |
1735 | writeq(0x0, &bar0->tx_traffic_mask); | |
1736 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1737 | /* |
1738 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1739 | * register. |
1740 | */ | |
1741 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1742 | temp64 = readq(&bar0->general_int_mask); | |
1743 | val64 |= temp64; | |
1744 | writeq(val64, &bar0->general_int_mask); | |
1745 | } | |
1746 | } | |
1747 | ||
1748 | /* Rx traffic interrupts */ | |
1749 | if (mask & RX_TRAFFIC_INTR) { | |
1750 | val64 = RXTRAFFIC_INT_M; | |
1751 | if (flag == ENABLE_INTRS) { | |
1752 | temp64 = readq(&bar0->general_int_mask); | |
1753 | temp64 &= ~((u64) val64); | |
1754 | writeq(temp64, &bar0->general_int_mask); | |
1755 | /* writing 0 Enables all 8 RX interrupt levels */ | |
1756 | writeq(0x0, &bar0->rx_traffic_mask); | |
1757 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1758 | /* |
1759 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1760 | * register. |
1761 | */ | |
1762 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1763 | temp64 = readq(&bar0->general_int_mask); | |
1764 | val64 |= temp64; | |
1765 | writeq(val64, &bar0->general_int_mask); | |
1766 | } | |
1767 | } | |
1768 | } | |
1769 | ||
19a60522 SS |
1770 | /** |
1771 | * verify_pcc_quiescent- Checks for PCC quiescent state | |
1772 | * Return: 1 If PCC is quiescence | |
1773 | * 0 If PCC is not quiescence | |
1774 | */ | |
1ee6dd77 | 1775 | static int verify_pcc_quiescent(struct s2io_nic *sp, int flag) |
20346722 | 1776 | { |
19a60522 | 1777 | int ret = 0, herc; |
1ee6dd77 | 1778 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1779 | u64 val64 = readq(&bar0->adapter_status); |
1780 | ||
1781 | herc = (sp->device_type == XFRAME_II_DEVICE); | |
20346722 K |
1782 | |
1783 | if (flag == FALSE) { | |
19a60522 SS |
1784 | if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) { |
1785 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE)) | |
5e25b9dd | 1786 | ret = 1; |
19a60522 SS |
1787 | } else { |
1788 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) | |
5e25b9dd | 1789 | ret = 1; |
20346722 K |
1790 | } |
1791 | } else { | |
19a60522 | 1792 | if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) { |
5e25b9dd | 1793 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
19a60522 | 1794 | ADAPTER_STATUS_RMAC_PCC_IDLE)) |
5e25b9dd | 1795 | ret = 1; |
5e25b9dd K |
1796 | } else { |
1797 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
19a60522 | 1798 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE)) |
5e25b9dd | 1799 | ret = 1; |
20346722 K |
1800 | } |
1801 | } | |
1802 | ||
1803 | return ret; | |
1804 | } | |
1805 | /** | |
1806 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 | 1807 | * Description: Returns whether the H/W is ready to go or not. Depending |
20346722 | 1808 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
1809 | * differs and the calling function passes the input argument flag to |
1810 | * indicate this. | |
20346722 | 1811 | * Return: 1 If xena is quiescence |
1da177e4 LT |
1812 | * 0 If Xena is not quiescence |
1813 | */ | |
1814 | ||
1ee6dd77 | 1815 | static int verify_xena_quiescence(struct s2io_nic *sp) |
1da177e4 | 1816 | { |
19a60522 | 1817 | int mode; |
1ee6dd77 | 1818 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
19a60522 SS |
1819 | u64 val64 = readq(&bar0->adapter_status); |
1820 | mode = s2io_verify_pci_mode(sp); | |
1da177e4 | 1821 | |
19a60522 SS |
1822 | if (!(val64 & ADAPTER_STATUS_TDMA_READY)) { |
1823 | DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!"); | |
1824 | return 0; | |
1825 | } | |
1826 | if (!(val64 & ADAPTER_STATUS_RDMA_READY)) { | |
1827 | DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!"); | |
1828 | return 0; | |
1829 | } | |
1830 | if (!(val64 & ADAPTER_STATUS_PFC_READY)) { | |
1831 | DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!"); | |
1832 | return 0; | |
1833 | } | |
1834 | if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) { | |
1835 | DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!"); | |
1836 | return 0; | |
1837 | } | |
1838 | if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) { | |
1839 | DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!"); | |
1840 | return 0; | |
1841 | } | |
1842 | if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) { | |
1843 | DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!"); | |
1844 | return 0; | |
1845 | } | |
1846 | if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) { | |
1847 | DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!"); | |
1848 | return 0; | |
1849 | } | |
1850 | if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) { | |
1851 | DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!"); | |
1852 | return 0; | |
1da177e4 LT |
1853 | } |
1854 | ||
19a60522 SS |
1855 | /* |
1856 | * In PCI 33 mode, the P_PLL is not used, and therefore, | |
1857 | * the the P_PLL_LOCK bit in the adapter_status register will | |
1858 | * not be asserted. | |
1859 | */ | |
1860 | if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) && | |
1861 | sp->device_type == XFRAME_II_DEVICE && mode != | |
1862 | PCI_MODE_PCI_33) { | |
1863 | DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!"); | |
1864 | return 0; | |
1865 | } | |
1866 | if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1867 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
1868 | DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!"); | |
1869 | return 0; | |
1870 | } | |
1871 | return 1; | |
1da177e4 LT |
1872 | } |
1873 | ||
1874 | /** | |
1875 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
1876 | * @sp: Pointer to device specifc structure | |
20346722 | 1877 | * Description : |
1da177e4 LT |
1878 | * New procedure to clear mac address reading problems on Alpha platforms |
1879 | * | |
1880 | */ | |
1881 | ||
1ee6dd77 | 1882 | static void fix_mac_address(struct s2io_nic * sp) |
1da177e4 | 1883 | { |
1ee6dd77 | 1884 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
1885 | u64 val64; |
1886 | int i = 0; | |
1887 | ||
1888 | while (fix_mac[i] != END_SIGN) { | |
1889 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 1890 | udelay(10); |
1da177e4 LT |
1891 | val64 = readq(&bar0->gpio_control); |
1892 | } | |
1893 | } | |
1894 | ||
1895 | /** | |
20346722 | 1896 | * start_nic - Turns the device on |
1da177e4 | 1897 | * @nic : device private variable. |
20346722 K |
1898 | * Description: |
1899 | * This function actually turns the device on. Before this function is | |
1900 | * called,all Registers are configured from their reset states | |
1901 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
1902 | * calling this function, the device interrupts are cleared and the NIC is |
1903 | * literally switched on by writing into the adapter control register. | |
20346722 | 1904 | * Return Value: |
1da177e4 LT |
1905 | * SUCCESS on success and -1 on failure. |
1906 | */ | |
1907 | ||
1908 | static int start_nic(struct s2io_nic *nic) | |
1909 | { | |
1ee6dd77 | 1910 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
1911 | struct net_device *dev = nic->dev; |
1912 | register u64 val64 = 0; | |
20346722 | 1913 | u16 subid, i; |
1ee6dd77 | 1914 | struct mac_info *mac_control; |
1da177e4 LT |
1915 | struct config_param *config; |
1916 | ||
1917 | mac_control = &nic->mac_control; | |
1918 | config = &nic->config; | |
1919 | ||
1920 | /* PRC Initialization and configuration */ | |
1921 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 1922 | writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr, |
1da177e4 LT |
1923 | &bar0->prc_rxd0_n[i]); |
1924 | ||
1925 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
b6e3f982 K |
1926 | if (nic->config.bimodal) |
1927 | val64 |= PRC_CTRL_BIMODAL_INTERRUPT; | |
da6971d8 AR |
1928 | if (nic->rxd_mode == RXD_MODE_1) |
1929 | val64 |= PRC_CTRL_RC_ENABLED; | |
1930 | else | |
1931 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
1932 | if (nic->device_type == XFRAME_II_DEVICE) |
1933 | val64 |= PRC_CTRL_GROUP_READS; | |
1934 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
1935 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
1936 | writeq(val64, &bar0->prc_ctrl_n[i]); |
1937 | } | |
1938 | ||
da6971d8 AR |
1939 | if (nic->rxd_mode == RXD_MODE_3B) { |
1940 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
1941 | val64 = readq(&bar0->rx_pa_cfg); | |
1942 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
1943 | writeq(val64, &bar0->rx_pa_cfg); | |
1944 | } | |
1da177e4 | 1945 | |
20346722 | 1946 | /* |
1da177e4 LT |
1947 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
1948 | * for around 100ms, which is approximately the time required | |
1949 | * for the device to be ready for operation. | |
1950 | */ | |
1951 | val64 = readq(&bar0->mc_rldram_mrs); | |
1952 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
1953 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
1954 | val64 = readq(&bar0->mc_rldram_mrs); | |
1955 | ||
20346722 | 1956 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
1957 | |
1958 | /* Enabling ECC Protection. */ | |
1959 | val64 = readq(&bar0->adapter_control); | |
1960 | val64 &= ~ADAPTER_ECC_EN; | |
1961 | writeq(val64, &bar0->adapter_control); | |
1962 | ||
20346722 K |
1963 | /* |
1964 | * Clearing any possible Link state change interrupts that | |
1da177e4 LT |
1965 | * could have popped up just before Enabling the card. |
1966 | */ | |
1967 | val64 = readq(&bar0->mac_rmac_err_reg); | |
1968 | if (val64) | |
1969 | writeq(val64, &bar0->mac_rmac_err_reg); | |
1970 | ||
20346722 K |
1971 | /* |
1972 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
1973 | * it. |
1974 | */ | |
1975 | val64 = readq(&bar0->adapter_status); | |
19a60522 | 1976 | if (!verify_xena_quiescence(nic)) { |
1da177e4 LT |
1977 | DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name); |
1978 | DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n", | |
1979 | (unsigned long long) val64); | |
1980 | return FAILURE; | |
1981 | } | |
1982 | ||
20346722 | 1983 | /* |
1da177e4 | 1984 | * With some switches, link might be already up at this point. |
20346722 K |
1985 | * Because of this weird behavior, when we enable laser, |
1986 | * we may not get link. We need to handle this. We cannot | |
1987 | * figure out which switch is misbehaving. So we are forced to | |
1988 | * make a global change. | |
1da177e4 LT |
1989 | */ |
1990 | ||
1991 | /* Enabling Laser. */ | |
1992 | val64 = readq(&bar0->adapter_control); | |
1993 | val64 |= ADAPTER_EOI_TX_ON; | |
1994 | writeq(val64, &bar0->adapter_control); | |
1995 | ||
c92ca04b AR |
1996 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
1997 | /* | |
1998 | * Dont see link state interrupts initally on some switches, | |
1999 | * so directly scheduling the link state task here. | |
2000 | */ | |
2001 | schedule_work(&nic->set_link_task); | |
2002 | } | |
1da177e4 LT |
2003 | /* SXE-002: Initialize link and activity LED */ |
2004 | subid = nic->pdev->subsystem_device; | |
541ae68f K |
2005 | if (((subid & 0xFF) >= 0x07) && |
2006 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2007 | val64 = readq(&bar0->gpio_control); |
2008 | val64 |= 0x0000800000000000ULL; | |
2009 | writeq(val64, &bar0->gpio_control); | |
2010 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2011 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2012 | } |
2013 | ||
1da177e4 LT |
2014 | return SUCCESS; |
2015 | } | |
fed5eccd AR |
2016 | /** |
2017 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2018 | */ | |
1ee6dd77 RB |
2019 | static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data, struct \ |
2020 | TxD *txdlp, int get_off) | |
fed5eccd | 2021 | { |
1ee6dd77 | 2022 | struct s2io_nic *nic = fifo_data->nic; |
fed5eccd | 2023 | struct sk_buff *skb; |
1ee6dd77 | 2024 | struct TxD *txds; |
fed5eccd AR |
2025 | u16 j, frg_cnt; |
2026 | ||
2027 | txds = txdlp; | |
26b7625c | 2028 | if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) { |
fed5eccd AR |
2029 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2030 | txds->Buffer_Pointer, sizeof(u64), | |
2031 | PCI_DMA_TODEVICE); | |
2032 | txds++; | |
2033 | } | |
2034 | ||
2035 | skb = (struct sk_buff *) ((unsigned long) | |
2036 | txds->Host_Control); | |
2037 | if (!skb) { | |
1ee6dd77 | 2038 | memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2039 | return NULL; |
2040 | } | |
2041 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2042 | txds->Buffer_Pointer, | |
2043 | skb->len - skb->data_len, | |
2044 | PCI_DMA_TODEVICE); | |
2045 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
2046 | if (frg_cnt) { | |
2047 | txds++; | |
2048 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2049 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2050 | if (!txds->Buffer_Pointer) | |
2051 | break; | |
6aa20a22 | 2052 | pci_unmap_page(nic->pdev, (dma_addr_t) |
fed5eccd AR |
2053 | txds->Buffer_Pointer, |
2054 | frag->size, PCI_DMA_TODEVICE); | |
2055 | } | |
2056 | } | |
1ee6dd77 | 2057 | memset(txdlp,0, (sizeof(struct TxD) * fifo_data->max_txds)); |
fed5eccd AR |
2058 | return(skb); |
2059 | } | |
1da177e4 | 2060 | |
20346722 K |
2061 | /** |
2062 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2063 | * @nic : device private variable. |
20346722 | 2064 | * Description: |
1da177e4 | 2065 | * Free all queued Tx buffers. |
20346722 | 2066 | * Return Value: void |
1da177e4 LT |
2067 | */ |
2068 | ||
2069 | static void free_tx_buffers(struct s2io_nic *nic) | |
2070 | { | |
2071 | struct net_device *dev = nic->dev; | |
2072 | struct sk_buff *skb; | |
1ee6dd77 | 2073 | struct TxD *txdp; |
1da177e4 | 2074 | int i, j; |
1ee6dd77 | 2075 | struct mac_info *mac_control; |
1da177e4 | 2076 | struct config_param *config; |
fed5eccd | 2077 | int cnt = 0; |
1da177e4 LT |
2078 | |
2079 | mac_control = &nic->mac_control; | |
2080 | config = &nic->config; | |
2081 | ||
2082 | for (i = 0; i < config->tx_fifo_num; i++) { | |
2083 | for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) { | |
1ee6dd77 | 2084 | txdp = (struct TxD *) mac_control->fifos[i].list_info[j]. |
1da177e4 | 2085 | list_virt_addr; |
fed5eccd AR |
2086 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2087 | if (skb) { | |
2088 | dev_kfree_skb(skb); | |
2089 | cnt++; | |
1da177e4 | 2090 | } |
1da177e4 LT |
2091 | } |
2092 | DBG_PRINT(INTR_DBG, | |
2093 | "%s:forcibly freeing %d skbs on FIFO%d\n", | |
2094 | dev->name, cnt, i); | |
20346722 K |
2095 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
2096 | mac_control->fifos[i].tx_curr_put_info.offset = 0; | |
1da177e4 LT |
2097 | } |
2098 | } | |
2099 | ||
20346722 K |
2100 | /** |
2101 | * stop_nic - To stop the nic | |
1da177e4 | 2102 | * @nic ; device private variable. |
20346722 K |
2103 | * Description: |
2104 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2105 | * function does. This function is called to stop the device. |
2106 | * Return Value: | |
2107 | * void. | |
2108 | */ | |
2109 | ||
2110 | static void stop_nic(struct s2io_nic *nic) | |
2111 | { | |
1ee6dd77 | 2112 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 2113 | register u64 val64 = 0; |
5d3213cc | 2114 | u16 interruptible; |
1ee6dd77 | 2115 | struct mac_info *mac_control; |
1da177e4 LT |
2116 | struct config_param *config; |
2117 | ||
2118 | mac_control = &nic->mac_control; | |
2119 | config = &nic->config; | |
2120 | ||
2121 | /* Disable all interrupts */ | |
e960fc5c | 2122 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
a371a07d K |
2123 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; |
2124 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
1da177e4 LT |
2125 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2126 | ||
5d3213cc AR |
2127 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2128 | val64 = readq(&bar0->adapter_control); | |
2129 | val64 &= ~(ADAPTER_CNTL_EN); | |
2130 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2131 | } |
2132 | ||
1ee6dd77 RB |
2133 | static int fill_rxd_3buf(struct s2io_nic *nic, struct RxD_t *rxdp, struct \ |
2134 | sk_buff *skb) | |
da6971d8 AR |
2135 | { |
2136 | struct net_device *dev = nic->dev; | |
2137 | struct sk_buff *frag_list; | |
50eb8006 | 2138 | void *tmp; |
da6971d8 AR |
2139 | |
2140 | /* Buffer-1 receives L3/L4 headers */ | |
1ee6dd77 | 2141 | ((struct RxD3*)rxdp)->Buffer1_ptr = pci_map_single |
da6971d8 AR |
2142 | (nic->pdev, skb->data, l3l4hdr_size + 4, |
2143 | PCI_DMA_FROMDEVICE); | |
2144 | ||
2145 | /* skb_shinfo(skb)->frag_list will have L4 data payload */ | |
2146 | skb_shinfo(skb)->frag_list = dev_alloc_skb(dev->mtu + ALIGN_SIZE); | |
2147 | if (skb_shinfo(skb)->frag_list == NULL) { | |
2148 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n ", dev->name); | |
2149 | return -ENOMEM ; | |
2150 | } | |
2151 | frag_list = skb_shinfo(skb)->frag_list; | |
372cc597 | 2152 | skb->truesize += frag_list->truesize; |
da6971d8 | 2153 | frag_list->next = NULL; |
50eb8006 JG |
2154 | tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1); |
2155 | frag_list->data = tmp; | |
2156 | frag_list->tail = tmp; | |
da6971d8 AR |
2157 | |
2158 | /* Buffer-2 receives L4 data payload */ | |
1ee6dd77 | 2159 | ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev, |
da6971d8 AR |
2160 | frag_list->data, dev->mtu, |
2161 | PCI_DMA_FROMDEVICE); | |
2162 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); | |
2163 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); | |
2164 | ||
2165 | return SUCCESS; | |
2166 | } | |
2167 | ||
20346722 K |
2168 | /** |
2169 | * fill_rx_buffers - Allocates the Rx side skbs | |
1da177e4 | 2170 | * @nic: device private variable |
20346722 K |
2171 | * @ring_no: ring number |
2172 | * Description: | |
1da177e4 LT |
2173 | * The function allocates Rx side skbs and puts the physical |
2174 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2175 | * can DMA the received frame into these locations. | |
2176 | * The NIC supports 3 receive modes, viz | |
2177 | * 1. single buffer, | |
2178 | * 2. three buffer and | |
2179 | * 3. Five buffer modes. | |
20346722 K |
2180 | * Each mode defines how many fragments the received frame will be split |
2181 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2182 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2183 | * is split into 3 fragments. As of now only single buffer mode is | |
2184 | * supported. | |
2185 | * Return Value: | |
2186 | * SUCCESS on success or an appropriate -ve value on failure. | |
2187 | */ | |
2188 | ||
ac1f60db | 2189 | static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) |
1da177e4 LT |
2190 | { |
2191 | struct net_device *dev = nic->dev; | |
2192 | struct sk_buff *skb; | |
1ee6dd77 | 2193 | struct RxD_t *rxdp; |
1da177e4 | 2194 | int off, off1, size, block_no, block_no1; |
1da177e4 | 2195 | u32 alloc_tab = 0; |
20346722 | 2196 | u32 alloc_cnt; |
1ee6dd77 | 2197 | struct mac_info *mac_control; |
1da177e4 | 2198 | struct config_param *config; |
20346722 | 2199 | u64 tmp; |
1ee6dd77 | 2200 | struct buffAdd *ba; |
1da177e4 | 2201 | unsigned long flags; |
1ee6dd77 | 2202 | struct RxD_t *first_rxdp = NULL; |
1da177e4 LT |
2203 | |
2204 | mac_control = &nic->mac_control; | |
2205 | config = &nic->config; | |
20346722 K |
2206 | alloc_cnt = mac_control->rings[ring_no].pkt_cnt - |
2207 | atomic_read(&nic->rx_bufs_left[ring_no]); | |
1da177e4 | 2208 | |
5d3213cc | 2209 | block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index; |
863c11a9 | 2210 | off1 = mac_control->rings[ring_no].rx_curr_get_info.offset; |
1da177e4 | 2211 | while (alloc_tab < alloc_cnt) { |
20346722 | 2212 | block_no = mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2213 | block_index; |
20346722 | 2214 | off = mac_control->rings[ring_no].rx_curr_put_info.offset; |
1da177e4 | 2215 | |
da6971d8 AR |
2216 | rxdp = mac_control->rings[ring_no]. |
2217 | rx_blocks[block_no].rxds[off].virt_addr; | |
2218 | ||
2219 | if ((block_no == block_no1) && (off == off1) && | |
2220 | (rxdp->Host_Control)) { | |
2221 | DBG_PRINT(INTR_DBG, "%s: Get and Put", | |
2222 | dev->name); | |
1da177e4 LT |
2223 | DBG_PRINT(INTR_DBG, " info equated\n"); |
2224 | goto end; | |
2225 | } | |
da6971d8 | 2226 | if (off && (off == rxd_count[nic->rxd_mode])) { |
20346722 | 2227 | mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2228 | block_index++; |
da6971d8 AR |
2229 | if (mac_control->rings[ring_no].rx_curr_put_info. |
2230 | block_index == mac_control->rings[ring_no]. | |
2231 | block_count) | |
2232 | mac_control->rings[ring_no].rx_curr_put_info. | |
2233 | block_index = 0; | |
2234 | block_no = mac_control->rings[ring_no]. | |
2235 | rx_curr_put_info.block_index; | |
2236 | if (off == rxd_count[nic->rxd_mode]) | |
2237 | off = 0; | |
20346722 | 2238 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 AR |
2239 | offset = off; |
2240 | rxdp = mac_control->rings[ring_no]. | |
2241 | rx_blocks[block_no].block_virt_addr; | |
1da177e4 LT |
2242 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
2243 | dev->name, rxdp); | |
2244 | } | |
db874e65 SS |
2245 | if(!napi) { |
2246 | spin_lock_irqsave(&nic->put_lock, flags); | |
2247 | mac_control->rings[ring_no].put_pos = | |
2248 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2249 | spin_unlock_irqrestore(&nic->put_lock, flags); | |
2250 | } else { | |
2251 | mac_control->rings[ring_no].put_pos = | |
2252 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; | |
2253 | } | |
da6971d8 AR |
2254 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
2255 | ((nic->rxd_mode >= RXD_MODE_3A) && | |
2256 | (rxdp->Control_2 & BIT(0)))) { | |
20346722 | 2257 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 | 2258 | offset = off; |
1da177e4 LT |
2259 | goto end; |
2260 | } | |
da6971d8 AR |
2261 | /* calculate size of skb based on ring mode */ |
2262 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
2263 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
2264 | if (nic->rxd_mode == RXD_MODE_1) | |
2265 | size += NET_IP_ALIGN; | |
2266 | else if (nic->rxd_mode == RXD_MODE_3B) | |
2267 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
2268 | else | |
2269 | size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; | |
1da177e4 | 2270 | |
da6971d8 AR |
2271 | /* allocate skb */ |
2272 | skb = dev_alloc_skb(size); | |
2273 | if(!skb) { | |
1da177e4 LT |
2274 | DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name); |
2275 | DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n"); | |
303bcb4b K |
2276 | if (first_rxdp) { |
2277 | wmb(); | |
2278 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2279 | } | |
da6971d8 AR |
2280 | return -ENOMEM ; |
2281 | } | |
2282 | if (nic->rxd_mode == RXD_MODE_1) { | |
2283 | /* 1 buffer mode - normal operation mode */ | |
1ee6dd77 | 2284 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 | 2285 | skb_reserve(skb, NET_IP_ALIGN); |
1ee6dd77 | 2286 | ((struct RxD1*)rxdp)->Buffer0_ptr = pci_map_single |
863c11a9 AR |
2287 | (nic->pdev, skb->data, size - NET_IP_ALIGN, |
2288 | PCI_DMA_FROMDEVICE); | |
2289 | rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); | |
da6971d8 AR |
2290 | |
2291 | } else if (nic->rxd_mode >= RXD_MODE_3A) { | |
2292 | /* | |
2293 | * 2 or 3 buffer mode - | |
2294 | * Both 2 buffer mode and 3 buffer mode provides 128 | |
2295 | * byte aligned receive buffers. | |
2296 | * | |
2297 | * 3 buffer mode provides header separation where in | |
2298 | * skb->data will have L3/L4 headers where as | |
2299 | * skb_shinfo(skb)->frag_list will have the L4 data | |
2300 | * payload | |
2301 | */ | |
2302 | ||
1ee6dd77 | 2303 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 AR |
2304 | ba = &mac_control->rings[ring_no].ba[block_no][off]; |
2305 | skb_reserve(skb, BUF0_LEN); | |
2306 | tmp = (u64)(unsigned long) skb->data; | |
2307 | tmp += ALIGN_SIZE; | |
2308 | tmp &= ~ALIGN_SIZE; | |
2309 | skb->data = (void *) (unsigned long)tmp; | |
2310 | skb->tail = (void *) (unsigned long)tmp; | |
2311 | ||
1ee6dd77 RB |
2312 | if (!(((struct RxD3*)rxdp)->Buffer0_ptr)) |
2313 | ((struct RxD3*)rxdp)->Buffer0_ptr = | |
75c30b13 | 2314 | pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, |
da6971d8 | 2315 | PCI_DMA_FROMDEVICE); |
75c30b13 AR |
2316 | else |
2317 | pci_dma_sync_single_for_device(nic->pdev, | |
1ee6dd77 | 2318 | (dma_addr_t) ((struct RxD3*)rxdp)->Buffer0_ptr, |
75c30b13 | 2319 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
da6971d8 AR |
2320 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
2321 | if (nic->rxd_mode == RXD_MODE_3B) { | |
2322 | /* Two buffer mode */ | |
2323 | ||
2324 | /* | |
6aa20a22 | 2325 | * Buffer2 will have L3/L4 header plus |
da6971d8 AR |
2326 | * L4 payload |
2327 | */ | |
1ee6dd77 | 2328 | ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single |
da6971d8 AR |
2329 | (nic->pdev, skb->data, dev->mtu + 4, |
2330 | PCI_DMA_FROMDEVICE); | |
2331 | ||
75c30b13 | 2332 | /* Buffer-1 will be dummy buffer. Not used */ |
1ee6dd77 RB |
2333 | if (!(((struct RxD3*)rxdp)->Buffer1_ptr)) { |
2334 | ((struct RxD3*)rxdp)->Buffer1_ptr = | |
6aa20a22 | 2335 | pci_map_single(nic->pdev, |
75c30b13 AR |
2336 | ba->ba_1, BUF1_LEN, |
2337 | PCI_DMA_FROMDEVICE); | |
2338 | } | |
da6971d8 AR |
2339 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2340 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
2341 | (dev->mtu + 4); | |
2342 | } else { | |
2343 | /* 3 buffer mode */ | |
2344 | if (fill_rxd_3buf(nic, rxdp, skb) == -ENOMEM) { | |
2345 | dev_kfree_skb_irq(skb); | |
2346 | if (first_rxdp) { | |
2347 | wmb(); | |
2348 | first_rxdp->Control_1 |= | |
2349 | RXD_OWN_XENA; | |
2350 | } | |
2351 | return -ENOMEM ; | |
2352 | } | |
2353 | } | |
2354 | rxdp->Control_2 |= BIT(0); | |
1da177e4 | 2355 | } |
1da177e4 | 2356 | rxdp->Host_Control = (unsigned long) (skb); |
303bcb4b K |
2357 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2358 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2359 | off++; |
da6971d8 AR |
2360 | if (off == (rxd_count[nic->rxd_mode] + 1)) |
2361 | off = 0; | |
20346722 | 2362 | mac_control->rings[ring_no].rx_curr_put_info.offset = off; |
20346722 | 2363 | |
da6971d8 | 2364 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b K |
2365 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2366 | if (first_rxdp) { | |
2367 | wmb(); | |
2368 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2369 | } | |
2370 | first_rxdp = rxdp; | |
2371 | } | |
1da177e4 LT |
2372 | atomic_inc(&nic->rx_bufs_left[ring_no]); |
2373 | alloc_tab++; | |
2374 | } | |
2375 | ||
2376 | end: | |
303bcb4b K |
2377 | /* Transfer ownership of first descriptor to adapter just before |
2378 | * exiting. Before that, use memory barrier so that ownership | |
2379 | * and other fields are seen by adapter correctly. | |
2380 | */ | |
2381 | if (first_rxdp) { | |
2382 | wmb(); | |
2383 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2384 | } | |
2385 | ||
1da177e4 LT |
2386 | return SUCCESS; |
2387 | } | |
2388 | ||
da6971d8 AR |
2389 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2390 | { | |
2391 | struct net_device *dev = sp->dev; | |
2392 | int j; | |
2393 | struct sk_buff *skb; | |
1ee6dd77 RB |
2394 | struct RxD_t *rxdp; |
2395 | struct mac_info *mac_control; | |
2396 | struct buffAdd *ba; | |
da6971d8 AR |
2397 | |
2398 | mac_control = &sp->mac_control; | |
2399 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { | |
2400 | rxdp = mac_control->rings[ring_no]. | |
2401 | rx_blocks[blk].rxds[j].virt_addr; | |
2402 | skb = (struct sk_buff *) | |
2403 | ((unsigned long) rxdp->Host_Control); | |
2404 | if (!skb) { | |
2405 | continue; | |
2406 | } | |
2407 | if (sp->rxd_mode == RXD_MODE_1) { | |
2408 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2409 | ((struct RxD1*)rxdp)->Buffer0_ptr, |
da6971d8 AR |
2410 | dev->mtu + |
2411 | HEADER_ETHERNET_II_802_3_SIZE | |
2412 | + HEADER_802_2_SIZE + | |
2413 | HEADER_SNAP_SIZE, | |
2414 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2415 | memset(rxdp, 0, sizeof(struct RxD1)); |
da6971d8 AR |
2416 | } else if(sp->rxd_mode == RXD_MODE_3B) { |
2417 | ba = &mac_control->rings[ring_no]. | |
2418 | ba[blk][j]; | |
2419 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2420 | ((struct RxD3*)rxdp)->Buffer0_ptr, |
da6971d8 AR |
2421 | BUF0_LEN, |
2422 | PCI_DMA_FROMDEVICE); | |
2423 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2424 | ((struct RxD3*)rxdp)->Buffer1_ptr, |
da6971d8 AR |
2425 | BUF1_LEN, |
2426 | PCI_DMA_FROMDEVICE); | |
2427 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2428 | ((struct RxD3*)rxdp)->Buffer2_ptr, |
da6971d8 AR |
2429 | dev->mtu + 4, |
2430 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 2431 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 AR |
2432 | } else { |
2433 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2434 | ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN, |
da6971d8 AR |
2435 | PCI_DMA_FROMDEVICE); |
2436 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2437 | ((struct RxD3*)rxdp)->Buffer1_ptr, |
da6971d8 AR |
2438 | l3l4hdr_size + 4, |
2439 | PCI_DMA_FROMDEVICE); | |
2440 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
1ee6dd77 | 2441 | ((struct RxD3*)rxdp)->Buffer2_ptr, dev->mtu, |
da6971d8 | 2442 | PCI_DMA_FROMDEVICE); |
1ee6dd77 | 2443 | memset(rxdp, 0, sizeof(struct RxD3)); |
da6971d8 AR |
2444 | } |
2445 | dev_kfree_skb(skb); | |
2446 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
2447 | } | |
2448 | } | |
2449 | ||
1da177e4 | 2450 | /** |
20346722 | 2451 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2452 | * @sp: device private variable. |
20346722 | 2453 | * Description: |
1da177e4 LT |
2454 | * This function will free all Rx buffers allocated by host. |
2455 | * Return Value: | |
2456 | * NONE. | |
2457 | */ | |
2458 | ||
2459 | static void free_rx_buffers(struct s2io_nic *sp) | |
2460 | { | |
2461 | struct net_device *dev = sp->dev; | |
da6971d8 | 2462 | int i, blk = 0, buf_cnt = 0; |
1ee6dd77 | 2463 | struct mac_info *mac_control; |
1da177e4 | 2464 | struct config_param *config; |
1da177e4 LT |
2465 | |
2466 | mac_control = &sp->mac_control; | |
2467 | config = &sp->config; | |
2468 | ||
2469 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
2470 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
2471 | free_rxd_blk(sp,i,blk); | |
1da177e4 | 2472 | |
20346722 K |
2473 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
2474 | mac_control->rings[i].rx_curr_get_info.block_index = 0; | |
2475 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
2476 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
1da177e4 LT |
2477 | atomic_set(&sp->rx_bufs_left[i], 0); |
2478 | DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n", | |
2479 | dev->name, buf_cnt, i); | |
2480 | } | |
2481 | } | |
2482 | ||
2483 | /** | |
2484 | * s2io_poll - Rx interrupt handler for NAPI support | |
2485 | * @dev : pointer to the device structure. | |
20346722 | 2486 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2487 | * during one pass through the 'Poll" function. |
2488 | * Description: | |
2489 | * Comes into picture only if NAPI support has been incorporated. It does | |
2490 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2491 | * also It will process only a given number of packets. | |
2492 | * Return value: | |
2493 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2494 | */ | |
2495 | ||
1da177e4 LT |
2496 | static int s2io_poll(struct net_device *dev, int *budget) |
2497 | { | |
1ee6dd77 | 2498 | struct s2io_nic *nic = dev->priv; |
20346722 | 2499 | int pkt_cnt = 0, org_pkts_to_process; |
1ee6dd77 | 2500 | struct mac_info *mac_control; |
1da177e4 | 2501 | struct config_param *config; |
1ee6dd77 | 2502 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
20346722 | 2503 | int i; |
1da177e4 | 2504 | |
7ba013ac | 2505 | atomic_inc(&nic->isr_cnt); |
1da177e4 LT |
2506 | mac_control = &nic->mac_control; |
2507 | config = &nic->config; | |
2508 | ||
20346722 K |
2509 | nic->pkts_to_process = *budget; |
2510 | if (nic->pkts_to_process > dev->quota) | |
2511 | nic->pkts_to_process = dev->quota; | |
2512 | org_pkts_to_process = nic->pkts_to_process; | |
1da177e4 | 2513 | |
19a60522 SS |
2514 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); |
2515 | readl(&bar0->rx_traffic_int); | |
1da177e4 LT |
2516 | |
2517 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
2518 | rx_intr_handler(&mac_control->rings[i]); |
2519 | pkt_cnt = org_pkts_to_process - nic->pkts_to_process; | |
2520 | if (!nic->pkts_to_process) { | |
2521 | /* Quota for the current iteration has been met */ | |
2522 | goto no_rx; | |
1da177e4 | 2523 | } |
1da177e4 LT |
2524 | } |
2525 | if (!pkt_cnt) | |
2526 | pkt_cnt = 1; | |
2527 | ||
2528 | dev->quota -= pkt_cnt; | |
2529 | *budget -= pkt_cnt; | |
2530 | netif_rx_complete(dev); | |
2531 | ||
2532 | for (i = 0; i < config->rx_ring_num; i++) { | |
2533 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2534 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2535 | DBG_PRINT(ERR_DBG, " in Rx Poll!!\n"); | |
2536 | break; | |
2537 | } | |
2538 | } | |
2539 | /* Re enable the Rx interrupts. */ | |
c92ca04b | 2540 | writeq(0x0, &bar0->rx_traffic_mask); |
19a60522 | 2541 | readl(&bar0->rx_traffic_mask); |
7ba013ac | 2542 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2543 | return 0; |
2544 | ||
20346722 | 2545 | no_rx: |
1da177e4 LT |
2546 | dev->quota -= pkt_cnt; |
2547 | *budget -= pkt_cnt; | |
2548 | ||
2549 | for (i = 0; i < config->rx_ring_num; i++) { | |
2550 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2551 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2552 | DBG_PRINT(ERR_DBG, " in Rx Poll!!\n"); | |
2553 | break; | |
2554 | } | |
2555 | } | |
7ba013ac | 2556 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2557 | return 1; |
2558 | } | |
20346722 | 2559 | |
b41477f3 | 2560 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2561 | /** |
b41477f3 | 2562 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2563 | * @dev : pointer to the device structure. |
2564 | * Description: | |
b41477f3 AR |
2565 | * This function will be called by upper layer to check for events on the |
2566 | * interface in situations where interrupts are disabled. It is used for | |
2567 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2568 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2569 | */ |
612eff0e BH |
2570 | static void s2io_netpoll(struct net_device *dev) |
2571 | { | |
1ee6dd77 RB |
2572 | struct s2io_nic *nic = dev->priv; |
2573 | struct mac_info *mac_control; | |
612eff0e | 2574 | struct config_param *config; |
1ee6dd77 | 2575 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
b41477f3 | 2576 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e BH |
2577 | int i; |
2578 | ||
2579 | disable_irq(dev->irq); | |
2580 | ||
2581 | atomic_inc(&nic->isr_cnt); | |
2582 | mac_control = &nic->mac_control; | |
2583 | config = &nic->config; | |
2584 | ||
612eff0e | 2585 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2586 | writeq(val64, &bar0->tx_traffic_int); |
2587 | ||
6aa20a22 | 2588 | /* we need to free up the transmitted skbufs or else netpoll will |
b41477f3 AR |
2589 | * run out of skbs and will fail and eventually netpoll application such |
2590 | * as netdump will fail. | |
2591 | */ | |
2592 | for (i = 0; i < config->tx_fifo_num; i++) | |
2593 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2594 | |
b41477f3 | 2595 | /* check for received packet and indicate up to network */ |
612eff0e BH |
2596 | for (i = 0; i < config->rx_ring_num; i++) |
2597 | rx_intr_handler(&mac_control->rings[i]); | |
2598 | ||
2599 | for (i = 0; i < config->rx_ring_num; i++) { | |
2600 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2601 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2602 | DBG_PRINT(ERR_DBG, " in Rx Netpoll!!\n"); | |
2603 | break; | |
2604 | } | |
2605 | } | |
2606 | atomic_dec(&nic->isr_cnt); | |
2607 | enable_irq(dev->irq); | |
2608 | return; | |
2609 | } | |
2610 | #endif | |
2611 | ||
20346722 | 2612 | /** |
1da177e4 LT |
2613 | * rx_intr_handler - Rx interrupt handler |
2614 | * @nic: device private variable. | |
20346722 K |
2615 | * Description: |
2616 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2617 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 K |
2618 | * called. It picks out the RxD at which place the last Rx processing had |
2619 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2620 | * the offset. |
2621 | * Return Value: | |
2622 | * NONE. | |
2623 | */ | |
1ee6dd77 | 2624 | static void rx_intr_handler(struct ring_info *ring_data) |
1da177e4 | 2625 | { |
1ee6dd77 | 2626 | struct s2io_nic *nic = ring_data->nic; |
1da177e4 | 2627 | struct net_device *dev = (struct net_device *) nic->dev; |
da6971d8 | 2628 | int get_block, put_block, put_offset; |
1ee6dd77 RB |
2629 | struct rx_curr_get_info get_info, put_info; |
2630 | struct RxD_t *rxdp; | |
1da177e4 | 2631 | struct sk_buff *skb; |
20346722 | 2632 | int pkt_cnt = 0; |
7d3d0439 RA |
2633 | int i; |
2634 | ||
7ba013ac K |
2635 | spin_lock(&nic->rx_lock); |
2636 | if (atomic_read(&nic->card_state) == CARD_DOWN) { | |
776bd20f | 2637 | DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n", |
7ba013ac K |
2638 | __FUNCTION__, dev->name); |
2639 | spin_unlock(&nic->rx_lock); | |
776bd20f | 2640 | return; |
7ba013ac K |
2641 | } |
2642 | ||
20346722 K |
2643 | get_info = ring_data->rx_curr_get_info; |
2644 | get_block = get_info.block_index; | |
1ee6dd77 | 2645 | memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |
20346722 | 2646 | put_block = put_info.block_index; |
da6971d8 | 2647 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
db874e65 SS |
2648 | if (!napi) { |
2649 | spin_lock(&nic->put_lock); | |
2650 | put_offset = ring_data->put_pos; | |
2651 | spin_unlock(&nic->put_lock); | |
2652 | } else | |
2653 | put_offset = ring_data->put_pos; | |
2654 | ||
da6971d8 | 2655 | while (RXD_IS_UP2DT(rxdp)) { |
db874e65 SS |
2656 | /* |
2657 | * If your are next to put index then it's | |
2658 | * FIFO full condition | |
2659 | */ | |
da6971d8 AR |
2660 | if ((get_block == put_block) && |
2661 | (get_info.offset + 1) == put_info.offset) { | |
75c30b13 | 2662 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); |
da6971d8 AR |
2663 | break; |
2664 | } | |
20346722 K |
2665 | skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); |
2666 | if (skb == NULL) { | |
2667 | DBG_PRINT(ERR_DBG, "%s: The skb is ", | |
2668 | dev->name); | |
2669 | DBG_PRINT(ERR_DBG, "Null in Rx Intr\n"); | |
7ba013ac | 2670 | spin_unlock(&nic->rx_lock); |
20346722 | 2671 | return; |
1da177e4 | 2672 | } |
da6971d8 AR |
2673 | if (nic->rxd_mode == RXD_MODE_1) { |
2674 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
1ee6dd77 | 2675 | ((struct RxD1*)rxdp)->Buffer0_ptr, |
20346722 K |
2676 | dev->mtu + |
2677 | HEADER_ETHERNET_II_802_3_SIZE + | |
2678 | HEADER_802_2_SIZE + | |
2679 | HEADER_SNAP_SIZE, | |
2680 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2681 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
75c30b13 | 2682 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
1ee6dd77 | 2683 | ((struct RxD3*)rxdp)->Buffer0_ptr, |
20346722 | 2684 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
da6971d8 | 2685 | pci_unmap_single(nic->pdev, (dma_addr_t) |
1ee6dd77 | 2686 | ((struct RxD3*)rxdp)->Buffer2_ptr, |
da6971d8 | 2687 | dev->mtu + 4, |
20346722 | 2688 | PCI_DMA_FROMDEVICE); |
da6971d8 | 2689 | } else { |
75c30b13 | 2690 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
1ee6dd77 | 2691 | ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN, |
da6971d8 AR |
2692 | PCI_DMA_FROMDEVICE); |
2693 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
1ee6dd77 | 2694 | ((struct RxD3*)rxdp)->Buffer1_ptr, |
da6971d8 AR |
2695 | l3l4hdr_size + 4, |
2696 | PCI_DMA_FROMDEVICE); | |
2697 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
1ee6dd77 | 2698 | ((struct RxD3*)rxdp)->Buffer2_ptr, |
da6971d8 AR |
2699 | dev->mtu, PCI_DMA_FROMDEVICE); |
2700 | } | |
863c11a9 | 2701 | prefetch(skb->data); |
20346722 K |
2702 | rx_osm_handler(ring_data, rxdp); |
2703 | get_info.offset++; | |
da6971d8 AR |
2704 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2705 | rxdp = ring_data->rx_blocks[get_block]. | |
2706 | rxds[get_info.offset].virt_addr; | |
2707 | if (get_info.offset == rxd_count[nic->rxd_mode]) { | |
20346722 | 2708 | get_info.offset = 0; |
da6971d8 | 2709 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2710 | get_block++; |
da6971d8 AR |
2711 | if (get_block == ring_data->block_count) |
2712 | get_block = 0; | |
2713 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 K |
2714 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2715 | } | |
1da177e4 | 2716 | |
20346722 | 2717 | nic->pkts_to_process -= 1; |
db874e65 | 2718 | if ((napi) && (!nic->pkts_to_process)) |
20346722 | 2719 | break; |
20346722 | 2720 | pkt_cnt++; |
1da177e4 LT |
2721 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2722 | break; | |
2723 | } | |
7d3d0439 RA |
2724 | if (nic->lro) { |
2725 | /* Clear all LRO sessions before exiting */ | |
2726 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 2727 | struct lro *lro = &nic->lro0_n[i]; |
7d3d0439 RA |
2728 | if (lro->in_use) { |
2729 | update_L3L4_header(nic, lro); | |
2730 | queue_rx_frame(lro->parent); | |
2731 | clear_lro_session(lro); | |
2732 | } | |
2733 | } | |
2734 | } | |
2735 | ||
7ba013ac | 2736 | spin_unlock(&nic->rx_lock); |
1da177e4 | 2737 | } |
20346722 K |
2738 | |
2739 | /** | |
1da177e4 LT |
2740 | * tx_intr_handler - Transmit interrupt handler |
2741 | * @nic : device private variable | |
20346722 K |
2742 | * Description: |
2743 | * If an interrupt was raised to indicate DMA complete of the | |
2744 | * Tx packet, this function is called. It identifies the last TxD | |
2745 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
2746 | * DMA'ed into the NICs internal memory. |
2747 | * Return Value: | |
2748 | * NONE | |
2749 | */ | |
2750 | ||
1ee6dd77 | 2751 | static void tx_intr_handler(struct fifo_info *fifo_data) |
1da177e4 | 2752 | { |
1ee6dd77 | 2753 | struct s2io_nic *nic = fifo_data->nic; |
1da177e4 | 2754 | struct net_device *dev = (struct net_device *) nic->dev; |
1ee6dd77 | 2755 | struct tx_curr_get_info get_info, put_info; |
1da177e4 | 2756 | struct sk_buff *skb; |
1ee6dd77 | 2757 | struct TxD *txdlp; |
1da177e4 | 2758 | |
20346722 | 2759 | get_info = fifo_data->tx_curr_get_info; |
1ee6dd77 RB |
2760 | memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info)); |
2761 | txdlp = (struct TxD *) fifo_data->list_info[get_info.offset]. | |
20346722 K |
2762 | list_virt_addr; |
2763 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && | |
2764 | (get_info.offset != put_info.offset) && | |
2765 | (txdlp->Host_Control)) { | |
2766 | /* Check for TxD errors */ | |
2767 | if (txdlp->Control_1 & TXD_T_CODE) { | |
2768 | unsigned long long err; | |
2769 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 AR |
2770 | if (err & 0x1) { |
2771 | nic->mac_control.stats_info->sw_stat. | |
2772 | parity_err_cnt++; | |
2773 | } | |
776bd20f | 2774 | if ((err >> 48) == 0xA) { |
2775 | DBG_PRINT(TX_DBG, "TxD returned due \ | |
19a60522 | 2776 | to loss of link\n"); |
776bd20f | 2777 | } |
2778 | else { | |
19a60522 | 2779 | DBG_PRINT(ERR_DBG, "***TxD error %llx\n", err); |
776bd20f | 2780 | } |
20346722 | 2781 | } |
1da177e4 | 2782 | |
fed5eccd | 2783 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 K |
2784 | if (skb == NULL) { |
2785 | DBG_PRINT(ERR_DBG, "%s: Null skb ", | |
2786 | __FUNCTION__); | |
2787 | DBG_PRINT(ERR_DBG, "in Tx Free Intr\n"); | |
2788 | return; | |
2789 | } | |
2790 | ||
20346722 | 2791 | /* Updating the statistics block */ |
20346722 K |
2792 | nic->stats.tx_bytes += skb->len; |
2793 | dev_kfree_skb_irq(skb); | |
2794 | ||
2795 | get_info.offset++; | |
863c11a9 AR |
2796 | if (get_info.offset == get_info.fifo_len + 1) |
2797 | get_info.offset = 0; | |
1ee6dd77 | 2798 | txdlp = (struct TxD *) fifo_data->list_info |
20346722 K |
2799 | [get_info.offset].list_virt_addr; |
2800 | fifo_data->tx_curr_get_info.offset = | |
2801 | get_info.offset; | |
1da177e4 LT |
2802 | } |
2803 | ||
2804 | spin_lock(&nic->tx_lock); | |
2805 | if (netif_queue_stopped(dev)) | |
2806 | netif_wake_queue(dev); | |
2807 | spin_unlock(&nic->tx_lock); | |
2808 | } | |
2809 | ||
bd1034f0 AR |
2810 | /** |
2811 | * s2io_mdio_write - Function to write in to MDIO registers | |
2812 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2813 | * @addr : address value | |
2814 | * @value : data value | |
2815 | * @dev : pointer to net_device structure | |
2816 | * Description: | |
2817 | * This function is used to write values to the MDIO registers | |
2818 | * NONE | |
2819 | */ | |
2820 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev) | |
2821 | { | |
2822 | u64 val64 = 0x0; | |
1ee6dd77 RB |
2823 | struct s2io_nic *sp = dev->priv; |
2824 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2825 | |
2826 | //address transaction | |
2827 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2828 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2829 | | MDIO_MMS_PRT_ADDR(0x0); | |
2830 | writeq(val64, &bar0->mdio_control); | |
2831 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2832 | writeq(val64, &bar0->mdio_control); | |
2833 | udelay(100); | |
2834 | ||
2835 | //Data transaction | |
2836 | val64 = 0x0; | |
2837 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2838 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2839 | | MDIO_MMS_PRT_ADDR(0x0) | |
2840 | | MDIO_MDIO_DATA(value) | |
2841 | | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
2842 | writeq(val64, &bar0->mdio_control); | |
2843 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2844 | writeq(val64, &bar0->mdio_control); | |
2845 | udelay(100); | |
2846 | ||
2847 | val64 = 0x0; | |
2848 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2849 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2850 | | MDIO_MMS_PRT_ADDR(0x0) | |
2851 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2852 | writeq(val64, &bar0->mdio_control); | |
2853 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2854 | writeq(val64, &bar0->mdio_control); | |
2855 | udelay(100); | |
2856 | ||
2857 | } | |
2858 | ||
2859 | /** | |
2860 | * s2io_mdio_read - Function to write in to MDIO registers | |
2861 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2862 | * @addr : address value | |
2863 | * @dev : pointer to net_device structure | |
2864 | * Description: | |
2865 | * This function is used to read values to the MDIO registers | |
2866 | * NONE | |
2867 | */ | |
2868 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
2869 | { | |
2870 | u64 val64 = 0x0; | |
2871 | u64 rval64 = 0x0; | |
1ee6dd77 RB |
2872 | struct s2io_nic *sp = dev->priv; |
2873 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
bd1034f0 AR |
2874 | |
2875 | /* address transaction */ | |
2876 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2877 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2878 | | MDIO_MMS_PRT_ADDR(0x0); | |
2879 | writeq(val64, &bar0->mdio_control); | |
2880 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2881 | writeq(val64, &bar0->mdio_control); | |
2882 | udelay(100); | |
2883 | ||
2884 | /* Data transaction */ | |
2885 | val64 = 0x0; | |
2886 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2887 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2888 | | MDIO_MMS_PRT_ADDR(0x0) | |
2889 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2890 | writeq(val64, &bar0->mdio_control); | |
2891 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2892 | writeq(val64, &bar0->mdio_control); | |
2893 | udelay(100); | |
2894 | ||
2895 | /* Read the value from regs */ | |
2896 | rval64 = readq(&bar0->mdio_control); | |
2897 | rval64 = rval64 & 0xFFFF0000; | |
2898 | rval64 = rval64 >> 16; | |
2899 | return rval64; | |
2900 | } | |
2901 | /** | |
2902 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
2903 | * @counter : couter value to be updated | |
2904 | * @flag : flag to indicate the status | |
2905 | * @type : counter type | |
2906 | * Description: | |
2907 | * This function is to check the status of the xpak counters value | |
2908 | * NONE | |
2909 | */ | |
2910 | ||
2911 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type) | |
2912 | { | |
2913 | u64 mask = 0x3; | |
2914 | u64 val64; | |
2915 | int i; | |
2916 | for(i = 0; i <index; i++) | |
2917 | mask = mask << 0x2; | |
2918 | ||
2919 | if(flag > 0) | |
2920 | { | |
2921 | *counter = *counter + 1; | |
2922 | val64 = *regs_stat & mask; | |
2923 | val64 = val64 >> (index * 0x2); | |
2924 | val64 = val64 + 1; | |
2925 | if(val64 == 3) | |
2926 | { | |
2927 | switch(type) | |
2928 | { | |
2929 | case 1: | |
2930 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
2931 | "service. Excessive temperatures may " | |
2932 | "result in premature transceiver " | |
2933 | "failure \n"); | |
2934 | break; | |
2935 | case 2: | |
2936 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
2937 | "service Excessive bias currents may " | |
2938 | "indicate imminent laser diode " | |
2939 | "failure \n"); | |
2940 | break; | |
2941 | case 3: | |
2942 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
2943 | "service Excessive laser output " | |
2944 | "power may saturate far-end " | |
2945 | "receiver\n"); | |
2946 | break; | |
2947 | default: | |
2948 | DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm " | |
2949 | "type \n"); | |
2950 | } | |
2951 | val64 = 0x0; | |
2952 | } | |
2953 | val64 = val64 << (index * 0x2); | |
2954 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
2955 | ||
2956 | } else { | |
2957 | *regs_stat = *regs_stat & (~mask); | |
2958 | } | |
2959 | } | |
2960 | ||
2961 | /** | |
2962 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
2963 | * @dev : pointer to net_device struct | |
2964 | * Description: | |
2965 | * This function is to upate the status of the xpak counters value | |
2966 | * NONE | |
2967 | */ | |
2968 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
2969 | { | |
2970 | u16 flag = 0x0; | |
2971 | u16 type = 0x0; | |
2972 | u16 val16 = 0x0; | |
2973 | u64 val64 = 0x0; | |
2974 | u64 addr = 0x0; | |
2975 | ||
1ee6dd77 RB |
2976 | struct s2io_nic *sp = dev->priv; |
2977 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
bd1034f0 AR |
2978 | |
2979 | /* Check the communication with the MDIO slave */ | |
2980 | addr = 0x0000; | |
2981 | val64 = 0x0; | |
2982 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
2983 | if((val64 == 0xFFFF) || (val64 == 0x0000)) | |
2984 | { | |
2985 | DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - " | |
2986 | "Returned %llx\n", (unsigned long long)val64); | |
2987 | return; | |
2988 | } | |
2989 | ||
2990 | /* Check for the expecte value of 2040 at PMA address 0x0000 */ | |
2991 | if(val64 != 0x2040) | |
2992 | { | |
2993 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "); | |
2994 | DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n", | |
2995 | (unsigned long long)val64); | |
2996 | return; | |
2997 | } | |
2998 | ||
2999 | /* Loading the DOM register to MDIO register */ | |
3000 | addr = 0xA100; | |
3001 | s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev); | |
3002 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3003 | ||
3004 | /* Reading the Alarm flags */ | |
3005 | addr = 0xA070; | |
3006 | val64 = 0x0; | |
3007 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3008 | ||
3009 | flag = CHECKBIT(val64, 0x7); | |
3010 | type = 1; | |
3011 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high, | |
3012 | &stat_info->xpak_stat.xpak_regs_stat, | |
3013 | 0x0, flag, type); | |
3014 | ||
3015 | if(CHECKBIT(val64, 0x6)) | |
3016 | stat_info->xpak_stat.alarm_transceiver_temp_low++; | |
3017 | ||
3018 | flag = CHECKBIT(val64, 0x3); | |
3019 | type = 2; | |
3020 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high, | |
3021 | &stat_info->xpak_stat.xpak_regs_stat, | |
3022 | 0x2, flag, type); | |
3023 | ||
3024 | if(CHECKBIT(val64, 0x2)) | |
3025 | stat_info->xpak_stat.alarm_laser_bias_current_low++; | |
3026 | ||
3027 | flag = CHECKBIT(val64, 0x1); | |
3028 | type = 3; | |
3029 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high, | |
3030 | &stat_info->xpak_stat.xpak_regs_stat, | |
3031 | 0x4, flag, type); | |
3032 | ||
3033 | if(CHECKBIT(val64, 0x0)) | |
3034 | stat_info->xpak_stat.alarm_laser_output_power_low++; | |
3035 | ||
3036 | /* Reading the Warning flags */ | |
3037 | addr = 0xA074; | |
3038 | val64 = 0x0; | |
3039 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3040 | ||
3041 | if(CHECKBIT(val64, 0x7)) | |
3042 | stat_info->xpak_stat.warn_transceiver_temp_high++; | |
3043 | ||
3044 | if(CHECKBIT(val64, 0x6)) | |
3045 | stat_info->xpak_stat.warn_transceiver_temp_low++; | |
3046 | ||
3047 | if(CHECKBIT(val64, 0x3)) | |
3048 | stat_info->xpak_stat.warn_laser_bias_current_high++; | |
3049 | ||
3050 | if(CHECKBIT(val64, 0x2)) | |
3051 | stat_info->xpak_stat.warn_laser_bias_current_low++; | |
3052 | ||
3053 | if(CHECKBIT(val64, 0x1)) | |
3054 | stat_info->xpak_stat.warn_laser_output_power_high++; | |
3055 | ||
3056 | if(CHECKBIT(val64, 0x0)) | |
3057 | stat_info->xpak_stat.warn_laser_output_power_low++; | |
3058 | } | |
3059 | ||
20346722 | 3060 | /** |
1da177e4 LT |
3061 | * alarm_intr_handler - Alarm Interrrupt handler |
3062 | * @nic: device private variable | |
20346722 | 3063 | * Description: If the interrupt was neither because of Rx packet or Tx |
1da177e4 | 3064 | * complete, this function is called. If the interrupt was to indicate |
20346722 K |
3065 | * a loss of link, the OSM link status handler is invoked for any other |
3066 | * alarm interrupt the block that raised the interrupt is displayed | |
1da177e4 LT |
3067 | * and a H/W reset is issued. |
3068 | * Return Value: | |
3069 | * NONE | |
3070 | */ | |
3071 | ||
3072 | static void alarm_intr_handler(struct s2io_nic *nic) | |
3073 | { | |
3074 | struct net_device *dev = (struct net_device *) nic->dev; | |
1ee6dd77 | 3075 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 | 3076 | register u64 val64 = 0, err_reg = 0; |
bd1034f0 AR |
3077 | u64 cnt; |
3078 | int i; | |
372cc597 SS |
3079 | if (atomic_read(&nic->card_state) == CARD_DOWN) |
3080 | return; | |
bd1034f0 AR |
3081 | nic->mac_control.stats_info->sw_stat.ring_full_cnt = 0; |
3082 | /* Handling the XPAK counters update */ | |
3083 | if(nic->mac_control.stats_info->xpak_stat.xpak_timer_count < 72000) { | |
3084 | /* waiting for an hour */ | |
3085 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count++; | |
3086 | } else { | |
3087 | s2io_updt_xpak_counter(dev); | |
3088 | /* reset the count to zero */ | |
3089 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count = 0; | |
3090 | } | |
1da177e4 LT |
3091 | |
3092 | /* Handling link status change error Intr */ | |
a371a07d K |
3093 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
3094 | err_reg = readq(&bar0->mac_rmac_err_reg); | |
3095 | writeq(err_reg, &bar0->mac_rmac_err_reg); | |
3096 | if (err_reg & RMAC_LINK_STATE_CHANGE_INT) { | |
3097 | schedule_work(&nic->set_link_task); | |
3098 | } | |
1da177e4 LT |
3099 | } |
3100 | ||
5e25b9dd K |
3101 | /* Handling Ecc errors */ |
3102 | val64 = readq(&bar0->mc_err_reg); | |
3103 | writeq(val64, &bar0->mc_err_reg); | |
3104 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
3105 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
7ba013ac K |
3106 | nic->mac_control.stats_info->sw_stat. |
3107 | double_ecc_errs++; | |
776bd20f | 3108 | DBG_PRINT(INIT_DBG, "%s: Device indicates ", |
5e25b9dd | 3109 | dev->name); |
776bd20f | 3110 | DBG_PRINT(INIT_DBG, "double ECC error!!\n"); |
e960fc5c | 3111 | if (nic->device_type != XFRAME_II_DEVICE) { |
776bd20f | 3112 | /* Reset XframeI only if critical error */ |
3113 | if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | | |
3114 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) { | |
3115 | netif_stop_queue(dev); | |
3116 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 AR |
3117 | nic->mac_control.stats_info->sw_stat. |
3118 | soft_reset_cnt++; | |
776bd20f | 3119 | } |
e960fc5c | 3120 | } |
5e25b9dd | 3121 | } else { |
7ba013ac K |
3122 | nic->mac_control.stats_info->sw_stat. |
3123 | single_ecc_errs++; | |
5e25b9dd K |
3124 | } |
3125 | } | |
3126 | ||
1da177e4 LT |
3127 | /* In case of a serious error, the device will be Reset. */ |
3128 | val64 = readq(&bar0->serr_source); | |
3129 | if (val64 & SERR_SOURCE_ANY) { | |
bd1034f0 | 3130 | nic->mac_control.stats_info->sw_stat.serious_err_cnt++; |
1da177e4 | 3131 | DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name); |
6aa20a22 | 3132 | DBG_PRINT(ERR_DBG, "serious error %llx!!\n", |
776bd20f | 3133 | (unsigned long long)val64); |
1da177e4 LT |
3134 | netif_stop_queue(dev); |
3135 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 | 3136 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
3137 | } |
3138 | ||
3139 | /* | |
3140 | * Also as mentioned in the latest Errata sheets if the PCC_FB_ECC | |
3141 | * Error occurs, the adapter will be recycled by disabling the | |
20346722 | 3142 | * adapter enable bit and enabling it again after the device |
1da177e4 LT |
3143 | * becomes Quiescent. |
3144 | */ | |
3145 | val64 = readq(&bar0->pcc_err_reg); | |
3146 | writeq(val64, &bar0->pcc_err_reg); | |
3147 | if (val64 & PCC_FB_ECC_DB_ERR) { | |
3148 | u64 ac = readq(&bar0->adapter_control); | |
3149 | ac &= ~(ADAPTER_CNTL_EN); | |
3150 | writeq(ac, &bar0->adapter_control); | |
3151 | ac = readq(&bar0->adapter_control); | |
3152 | schedule_work(&nic->set_link_task); | |
3153 | } | |
bd1034f0 AR |
3154 | /* Check for data parity error */ |
3155 | val64 = readq(&bar0->pic_int_status); | |
3156 | if (val64 & PIC_INT_GPIO) { | |
3157 | val64 = readq(&bar0->gpio_int_reg); | |
3158 | if (val64 & GPIO_INT_REG_DP_ERR_INT) { | |
3159 | nic->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
3160 | schedule_work(&nic->rst_timer_task); | |
3161 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | /* Check for ring full counter */ | |
3166 | if (nic->device_type & XFRAME_II_DEVICE) { | |
3167 | val64 = readq(&bar0->ring_bump_counter1); | |
3168 | for (i=0; i<4; i++) { | |
3169 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3170 | cnt >>= 64 - ((i+1)*16); | |
3171 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3172 | += cnt; | |
3173 | } | |
3174 | ||
3175 | val64 = readq(&bar0->ring_bump_counter2); | |
3176 | for (i=0; i<4; i++) { | |
3177 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3178 | cnt >>= 64 - ((i+1)*16); | |
3179 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3180 | += cnt; | |
3181 | } | |
3182 | } | |
1da177e4 LT |
3183 | |
3184 | /* Other type of interrupts are not being handled now, TODO */ | |
3185 | } | |
3186 | ||
20346722 | 3187 | /** |
1da177e4 | 3188 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3189 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3190 | * s2io_nic structure. |
20346722 K |
3191 | * Description: Function that waits for a command to Write into RMAC |
3192 | * ADDR DATA registers to be completed and returns either success or | |
3193 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3194 | * Return value: |
3195 | * SUCCESS on success and FAILURE on failure. | |
3196 | */ | |
3197 | ||
cc3afe6f | 3198 | static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit) |
1da177e4 | 3199 | { |
1da177e4 LT |
3200 | int ret = FAILURE, cnt = 0; |
3201 | u64 val64; | |
3202 | ||
3203 | while (TRUE) { | |
c92ca04b AR |
3204 | val64 = readq(addr); |
3205 | if (!(val64 & busy_bit)) { | |
1da177e4 LT |
3206 | ret = SUCCESS; |
3207 | break; | |
3208 | } | |
c92ca04b AR |
3209 | |
3210 | if(in_interrupt()) | |
3211 | mdelay(50); | |
3212 | else | |
3213 | msleep(50); | |
3214 | ||
1da177e4 LT |
3215 | if (cnt++ > 10) |
3216 | break; | |
3217 | } | |
1da177e4 LT |
3218 | return ret; |
3219 | } | |
19a60522 SS |
3220 | /* |
3221 | * check_pci_device_id - Checks if the device id is supported | |
3222 | * @id : device id | |
3223 | * Description: Function to check if the pci device id is supported by driver. | |
3224 | * Return value: Actual device id if supported else PCI_ANY_ID | |
3225 | */ | |
3226 | static u16 check_pci_device_id(u16 id) | |
3227 | { | |
3228 | switch (id) { | |
3229 | case PCI_DEVICE_ID_HERC_WIN: | |
3230 | case PCI_DEVICE_ID_HERC_UNI: | |
3231 | return XFRAME_II_DEVICE; | |
3232 | case PCI_DEVICE_ID_S2IO_UNI: | |
3233 | case PCI_DEVICE_ID_S2IO_WIN: | |
3234 | return XFRAME_I_DEVICE; | |
3235 | default: | |
3236 | return PCI_ANY_ID; | |
3237 | } | |
3238 | } | |
1da177e4 | 3239 | |
20346722 K |
3240 | /** |
3241 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3242 | * @sp : private member of the device structure. |
3243 | * Description: Function to Reset the card. This function then also | |
20346722 | 3244 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3245 | * the card reset also resets the configuration space. |
3246 | * Return value: | |
3247 | * void. | |
3248 | */ | |
3249 | ||
1ee6dd77 | 3250 | static void s2io_reset(struct s2io_nic * sp) |
1da177e4 | 3251 | { |
1ee6dd77 | 3252 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 3253 | u64 val64; |
5e25b9dd | 3254 | u16 subid, pci_cmd; |
19a60522 SS |
3255 | int i; |
3256 | u16 val16; | |
3257 | DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n", | |
3258 | __FUNCTION__, sp->dev->name); | |
1da177e4 | 3259 | |
0b1f7ebe | 3260 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3261 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3262 | |
19a60522 SS |
3263 | if (sp->device_type == XFRAME_II_DEVICE) { |
3264 | int ret; | |
3265 | ret = pci_set_power_state(sp->pdev, 3); | |
3266 | if (!ret) | |
3267 | ret = pci_set_power_state(sp->pdev, 0); | |
3268 | else { | |
3269 | DBG_PRINT(ERR_DBG,"%s PME based SW_Reset failed!\n", | |
3270 | __FUNCTION__); | |
3271 | goto old_way; | |
3272 | } | |
3273 | msleep(20); | |
3274 | goto new_way; | |
3275 | } | |
3276 | old_way: | |
1da177e4 LT |
3277 | val64 = SW_RESET_ALL; |
3278 | writeq(val64, &bar0->sw_reset); | |
19a60522 | 3279 | new_way: |
c92ca04b AR |
3280 | if (strstr(sp->product_name, "CX4")) { |
3281 | msleep(750); | |
3282 | } | |
19a60522 SS |
3283 | msleep(250); |
3284 | for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) { | |
1da177e4 | 3285 | |
19a60522 SS |
3286 | /* Restore the PCI state saved during initialization. */ |
3287 | pci_restore_state(sp->pdev); | |
3288 | pci_read_config_word(sp->pdev, 0x2, &val16); | |
3289 | if (check_pci_device_id(val16) != (u16)PCI_ANY_ID) | |
3290 | break; | |
3291 | msleep(200); | |
3292 | } | |
1da177e4 | 3293 | |
19a60522 SS |
3294 | if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) { |
3295 | DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__); | |
3296 | } | |
3297 | ||
3298 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd); | |
3299 | ||
3300 | s2io_init_pci(sp); | |
1da177e4 | 3301 | |
20346722 K |
3302 | /* Set swapper to enable I/O register access */ |
3303 | s2io_set_swapper(sp); | |
3304 | ||
cc6e7c44 RA |
3305 | /* Restore the MSIX table entries from local variables */ |
3306 | restore_xmsi_data(sp); | |
3307 | ||
5e25b9dd | 3308 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3309 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3310 | /* Clear "detected parity error" bit */ |
303bcb4b | 3311 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3312 | |
303bcb4b K |
3313 | /* Clearing PCIX Ecc status register */ |
3314 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3315 | |
303bcb4b K |
3316 | /* Clearing PCI_STATUS error reflected here */ |
3317 | writeq(BIT(62), &bar0->txpic_int_reg); | |
3318 | } | |
5e25b9dd | 3319 | |
20346722 K |
3320 | /* Reset device statistics maintained by OS */ |
3321 | memset(&sp->stats, 0, sizeof (struct net_device_stats)); | |
3322 | ||
1da177e4 LT |
3323 | /* SXE-002: Configure link and activity LED to turn it off */ |
3324 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
3325 | if (((subid & 0xFF) >= 0x07) && |
3326 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3327 | val64 = readq(&bar0->gpio_control); |
3328 | val64 |= 0x0000800000000000ULL; | |
3329 | writeq(val64, &bar0->gpio_control); | |
3330 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3331 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3332 | } |
3333 | ||
541ae68f K |
3334 | /* |
3335 | * Clear spurious ECC interrupts that would have occured on | |
3336 | * XFRAME II cards after reset. | |
3337 | */ | |
3338 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3339 | val64 = readq(&bar0->pcc_err_reg); | |
3340 | writeq(val64, &bar0->pcc_err_reg); | |
3341 | } | |
3342 | ||
1da177e4 LT |
3343 | sp->device_enabled_once = FALSE; |
3344 | } | |
3345 | ||
3346 | /** | |
20346722 K |
3347 | * s2io_set_swapper - to set the swapper controle on the card |
3348 | * @sp : private member of the device structure, | |
1da177e4 | 3349 | * pointer to the s2io_nic structure. |
20346722 | 3350 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3351 | * correctly depending on the 'endianness' of the system. |
3352 | * Return value: | |
3353 | * SUCCESS on success and FAILURE on failure. | |
3354 | */ | |
3355 | ||
1ee6dd77 | 3356 | static int s2io_set_swapper(struct s2io_nic * sp) |
1da177e4 LT |
3357 | { |
3358 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 3359 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
3360 | u64 val64, valt, valr; |
3361 | ||
20346722 | 3362 | /* |
1da177e4 LT |
3363 | * Set proper endian settings and verify the same by reading |
3364 | * the PIF Feed-back register. | |
3365 | */ | |
3366 | ||
3367 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3368 | if (val64 != 0x0123456789ABCDEFULL) { | |
3369 | int i = 0; | |
3370 | u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3371 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3372 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3373 | 0}; /* FE=0, SE=0 */ | |
3374 | ||
3375 | while(i<4) { | |
3376 | writeq(value[i], &bar0->swapper_ctrl); | |
3377 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3378 | if (val64 == 0x0123456789ABCDEFULL) | |
3379 | break; | |
3380 | i++; | |
3381 | } | |
3382 | if (i == 4) { | |
3383 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3384 | dev->name); | |
3385 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3386 | (unsigned long long) val64); | |
3387 | return FAILURE; | |
3388 | } | |
3389 | valr = value[i]; | |
3390 | } else { | |
3391 | valr = readq(&bar0->swapper_ctrl); | |
3392 | } | |
3393 | ||
3394 | valt = 0x0123456789ABCDEFULL; | |
3395 | writeq(valt, &bar0->xmsi_address); | |
3396 | val64 = readq(&bar0->xmsi_address); | |
3397 | ||
3398 | if(val64 != valt) { | |
3399 | int i = 0; | |
3400 | u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3401 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3402 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3403 | 0}; /* FE=0, SE=0 */ | |
3404 | ||
3405 | while(i<4) { | |
3406 | writeq((value[i] | valr), &bar0->swapper_ctrl); | |
3407 | writeq(valt, &bar0->xmsi_address); | |
3408 | val64 = readq(&bar0->xmsi_address); | |
3409 | if(val64 == valt) | |
3410 | break; | |
3411 | i++; | |
3412 | } | |
3413 | if(i == 4) { | |
20346722 | 3414 | unsigned long long x = val64; |
1da177e4 | 3415 | DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr "); |
20346722 | 3416 | DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x); |
1da177e4 LT |
3417 | return FAILURE; |
3418 | } | |
3419 | } | |
3420 | val64 = readq(&bar0->swapper_ctrl); | |
3421 | val64 &= 0xFFFF000000000000ULL; | |
3422 | ||
3423 | #ifdef __BIG_ENDIAN | |
20346722 K |
3424 | /* |
3425 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3426 | * big endian driver need not set anything. |
3427 | */ | |
3428 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3429 | SWAPPER_CTRL_TXP_SE | | |
3430 | SWAPPER_CTRL_TXD_R_FE | | |
3431 | SWAPPER_CTRL_TXD_W_FE | | |
3432 | SWAPPER_CTRL_TXF_R_FE | | |
3433 | SWAPPER_CTRL_RXD_R_FE | | |
3434 | SWAPPER_CTRL_RXD_W_FE | | |
3435 | SWAPPER_CTRL_RXF_W_FE | | |
3436 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3437 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
92383340 | 3438 | if (sp->intr_type == INTA) |
cc6e7c44 | 3439 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3440 | writeq(val64, &bar0->swapper_ctrl); |
3441 | #else | |
20346722 | 3442 | /* |
1da177e4 | 3443 | * Initially we enable all bits to make it accessible by the |
20346722 | 3444 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3445 | * we want to set. |
3446 | */ | |
3447 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3448 | SWAPPER_CTRL_TXP_SE | | |
3449 | SWAPPER_CTRL_TXD_R_FE | | |
3450 | SWAPPER_CTRL_TXD_R_SE | | |
3451 | SWAPPER_CTRL_TXD_W_FE | | |
3452 | SWAPPER_CTRL_TXD_W_SE | | |
3453 | SWAPPER_CTRL_TXF_R_FE | | |
3454 | SWAPPER_CTRL_RXD_R_FE | | |
3455 | SWAPPER_CTRL_RXD_R_SE | | |
3456 | SWAPPER_CTRL_RXD_W_FE | | |
3457 | SWAPPER_CTRL_RXD_W_SE | | |
3458 | SWAPPER_CTRL_RXF_W_FE | | |
3459 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3460 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
cc6e7c44 RA |
3461 | if (sp->intr_type == INTA) |
3462 | val64 |= SWAPPER_CTRL_XMSI_SE; | |
1da177e4 LT |
3463 | writeq(val64, &bar0->swapper_ctrl); |
3464 | #endif | |
3465 | val64 = readq(&bar0->swapper_ctrl); | |
3466 | ||
20346722 K |
3467 | /* |
3468 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3469 | * feedback register. |
3470 | */ | |
3471 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3472 | if (val64 != 0x0123456789ABCDEFULL) { | |
3473 | /* Endian settings are incorrect, calls for another dekko. */ | |
3474 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3475 | dev->name); | |
3476 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3477 | (unsigned long long) val64); | |
3478 | return FAILURE; | |
3479 | } | |
3480 | ||
3481 | return SUCCESS; | |
3482 | } | |
3483 | ||
1ee6dd77 | 3484 | static int wait_for_msix_trans(struct s2io_nic *nic, int i) |
cc6e7c44 | 3485 | { |
1ee6dd77 | 3486 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3487 | u64 val64; |
3488 | int ret = 0, cnt = 0; | |
3489 | ||
3490 | do { | |
3491 | val64 = readq(&bar0->xmsi_access); | |
3492 | if (!(val64 & BIT(15))) | |
3493 | break; | |
3494 | mdelay(1); | |
3495 | cnt++; | |
3496 | } while(cnt < 5); | |
3497 | if (cnt == 5) { | |
3498 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3499 | ret = 1; | |
3500 | } | |
3501 | ||
3502 | return ret; | |
3503 | } | |
3504 | ||
1ee6dd77 | 3505 | static void restore_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3506 | { |
1ee6dd77 | 3507 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3508 | u64 val64; |
3509 | int i; | |
3510 | ||
75c30b13 | 3511 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3512 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3513 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
3514 | val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6)); | |
3515 | writeq(val64, &bar0->xmsi_access); | |
3516 | if (wait_for_msix_trans(nic, i)) { | |
3517 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3518 | continue; | |
3519 | } | |
3520 | } | |
3521 | } | |
3522 | ||
1ee6dd77 | 3523 | static void store_xmsi_data(struct s2io_nic *nic) |
cc6e7c44 | 3524 | { |
1ee6dd77 | 3525 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3526 | u64 val64, addr, data; |
3527 | int i; | |
3528 | ||
3529 | /* Store and display */ | |
75c30b13 | 3530 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3531 | val64 = (BIT(15) | vBIT(i, 26, 6)); |
3532 | writeq(val64, &bar0->xmsi_access); | |
3533 | if (wait_for_msix_trans(nic, i)) { | |
3534 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3535 | continue; | |
3536 | } | |
3537 | addr = readq(&bar0->xmsi_address); | |
3538 | data = readq(&bar0->xmsi_data); | |
3539 | if (addr && data) { | |
3540 | nic->msix_info[i].addr = addr; | |
3541 | nic->msix_info[i].data = data; | |
3542 | } | |
3543 | } | |
3544 | } | |
3545 | ||
1ee6dd77 | 3546 | int s2io_enable_msi(struct s2io_nic *nic) |
cc6e7c44 | 3547 | { |
1ee6dd77 | 3548 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3549 | u16 msi_ctrl, msg_val; |
3550 | struct config_param *config = &nic->config; | |
3551 | struct net_device *dev = nic->dev; | |
3552 | u64 val64, tx_mat, rx_mat; | |
3553 | int i, err; | |
3554 | ||
3555 | val64 = readq(&bar0->pic_control); | |
3556 | val64 &= ~BIT(1); | |
3557 | writeq(val64, &bar0->pic_control); | |
3558 | ||
3559 | err = pci_enable_msi(nic->pdev); | |
3560 | if (err) { | |
3561 | DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n", | |
3562 | nic->dev->name); | |
3563 | return err; | |
3564 | } | |
3565 | ||
3566 | /* | |
3567 | * Enable MSI and use MSI-1 in stead of the standard MSI-0 | |
3568 | * for interrupt handling. | |
3569 | */ | |
3570 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3571 | msg_val ^= 0x1; | |
3572 | pci_write_config_word(nic->pdev, 0x4c, msg_val); | |
3573 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3574 | ||
3575 | pci_read_config_word(nic->pdev, 0x42, &msi_ctrl); | |
3576 | msi_ctrl |= 0x10; | |
3577 | pci_write_config_word(nic->pdev, 0x42, msi_ctrl); | |
3578 | ||
3579 | /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */ | |
3580 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3581 | for (i=0; i<config->tx_fifo_num; i++) { | |
3582 | tx_mat |= TX_MAT_SET(i, 1); | |
3583 | } | |
3584 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3585 | ||
3586 | rx_mat = readq(&bar0->rx_mat); | |
3587 | for (i=0; i<config->rx_ring_num; i++) { | |
3588 | rx_mat |= RX_MAT_SET(i, 1); | |
3589 | } | |
3590 | writeq(rx_mat, &bar0->rx_mat); | |
3591 | ||
3592 | dev->irq = nic->pdev->irq; | |
3593 | return 0; | |
3594 | } | |
3595 | ||
1ee6dd77 | 3596 | static int s2io_enable_msi_x(struct s2io_nic *nic) |
cc6e7c44 | 3597 | { |
1ee6dd77 | 3598 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3599 | u64 tx_mat, rx_mat; |
3600 | u16 msi_control; /* Temp variable */ | |
3601 | int ret, i, j, msix_indx = 1; | |
3602 | ||
3603 | nic->entries = kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry), | |
3604 | GFP_KERNEL); | |
3605 | if (nic->entries == NULL) { | |
3606 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__); | |
3607 | return -ENOMEM; | |
3608 | } | |
3609 | memset(nic->entries, 0, MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3610 | ||
3611 | nic->s2io_entries = | |
3612 | kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry), | |
3613 | GFP_KERNEL); | |
3614 | if (nic->s2io_entries == NULL) { | |
3615 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__); | |
3616 | kfree(nic->entries); | |
3617 | return -ENOMEM; | |
3618 | } | |
3619 | memset(nic->s2io_entries, 0, | |
3620 | MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3621 | ||
3622 | for (i=0; i< MAX_REQUESTED_MSI_X; i++) { | |
3623 | nic->entries[i].entry = i; | |
3624 | nic->s2io_entries[i].entry = i; | |
3625 | nic->s2io_entries[i].arg = NULL; | |
3626 | nic->s2io_entries[i].in_use = 0; | |
3627 | } | |
3628 | ||
3629 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3630 | for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) { | |
3631 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3632 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i]; | |
3633 | nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE; | |
3634 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3635 | } | |
3636 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3637 | ||
3638 | if (!nic->config.bimodal) { | |
3639 | rx_mat = readq(&bar0->rx_mat); | |
3640 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3641 | rx_mat |= RX_MAT_SET(j, msix_indx); | |
3642 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j]; | |
3643 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; | |
3644 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3645 | } | |
3646 | writeq(rx_mat, &bar0->rx_mat); | |
3647 | } else { | |
3648 | tx_mat = readq(&bar0->tx_mat0_n[7]); | |
3649 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3650 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3651 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j]; | |
3652 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; | |
3653 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3654 | } | |
3655 | writeq(tx_mat, &bar0->tx_mat0_n[7]); | |
3656 | } | |
3657 | ||
c92ca04b | 3658 | nic->avail_msix_vectors = 0; |
cc6e7c44 | 3659 | ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X); |
c92ca04b AR |
3660 | /* We fail init if error or we get less vectors than min required */ |
3661 | if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) { | |
3662 | nic->avail_msix_vectors = ret; | |
3663 | ret = pci_enable_msix(nic->pdev, nic->entries, ret); | |
3664 | } | |
cc6e7c44 RA |
3665 | if (ret) { |
3666 | DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name); | |
3667 | kfree(nic->entries); | |
3668 | kfree(nic->s2io_entries); | |
3669 | nic->entries = NULL; | |
3670 | nic->s2io_entries = NULL; | |
c92ca04b | 3671 | nic->avail_msix_vectors = 0; |
cc6e7c44 RA |
3672 | return -ENOMEM; |
3673 | } | |
c92ca04b AR |
3674 | if (!nic->avail_msix_vectors) |
3675 | nic->avail_msix_vectors = MAX_REQUESTED_MSI_X; | |
cc6e7c44 RA |
3676 | |
3677 | /* | |
3678 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3679 | * in the herc NIC. (Temp change, needs to be removed later) | |
3680 | */ | |
3681 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3682 | msi_control |= 0x1; /* Enable MSI */ | |
3683 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3684 | ||
3685 | return 0; | |
3686 | } | |
3687 | ||
1da177e4 LT |
3688 | /* ********************************************************* * |
3689 | * Functions defined below concern the OS part of the driver * | |
3690 | * ********************************************************* */ | |
3691 | ||
20346722 | 3692 | /** |
1da177e4 LT |
3693 | * s2io_open - open entry point of the driver |
3694 | * @dev : pointer to the device structure. | |
3695 | * Description: | |
3696 | * This function is the open entry point of the driver. It mainly calls a | |
3697 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3698 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3699 | * Return value: |
3700 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3701 | * file on failure. | |
3702 | */ | |
3703 | ||
ac1f60db | 3704 | static int s2io_open(struct net_device *dev) |
1da177e4 | 3705 | { |
1ee6dd77 | 3706 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3707 | int err = 0; |
3708 | ||
20346722 K |
3709 | /* |
3710 | * Make sure you have link off by default every time | |
1da177e4 LT |
3711 | * Nic is initialized |
3712 | */ | |
3713 | netif_carrier_off(dev); | |
0b1f7ebe | 3714 | sp->last_link_state = 0; |
1da177e4 LT |
3715 | |
3716 | /* Initialize H/W and enable interrupts */ | |
c92ca04b AR |
3717 | err = s2io_card_up(sp); |
3718 | if (err) { | |
1da177e4 LT |
3719 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3720 | dev->name); | |
e6a8fee2 | 3721 | goto hw_init_failed; |
1da177e4 LT |
3722 | } |
3723 | ||
3724 | if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) { | |
3725 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); | |
e6a8fee2 | 3726 | s2io_card_down(sp); |
20346722 | 3727 | err = -ENODEV; |
e6a8fee2 | 3728 | goto hw_init_failed; |
1da177e4 LT |
3729 | } |
3730 | ||
3731 | netif_start_queue(dev); | |
3732 | return 0; | |
20346722 | 3733 | |
20346722 | 3734 | hw_init_failed: |
cc6e7c44 RA |
3735 | if (sp->intr_type == MSI_X) { |
3736 | if (sp->entries) | |
3737 | kfree(sp->entries); | |
3738 | if (sp->s2io_entries) | |
3739 | kfree(sp->s2io_entries); | |
3740 | } | |
20346722 | 3741 | return err; |
1da177e4 LT |
3742 | } |
3743 | ||
3744 | /** | |
3745 | * s2io_close -close entry point of the driver | |
3746 | * @dev : device pointer. | |
3747 | * Description: | |
3748 | * This is the stop entry point of the driver. It needs to undo exactly | |
3749 | * whatever was done by the open entry point,thus it's usually referred to | |
3750 | * as the close function.Among other things this function mainly stops the | |
3751 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3752 | * Return value: | |
3753 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3754 | * file on failure. | |
3755 | */ | |
3756 | ||
ac1f60db | 3757 | static int s2io_close(struct net_device *dev) |
1da177e4 | 3758 | { |
1ee6dd77 | 3759 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 3760 | |
1da177e4 LT |
3761 | flush_scheduled_work(); |
3762 | netif_stop_queue(dev); | |
3763 | /* Reset card, kill tasklet and free Tx and Rx buffers. */ | |
e6a8fee2 | 3764 | s2io_card_down(sp); |
cc6e7c44 | 3765 | |
1da177e4 LT |
3766 | sp->device_close_flag = TRUE; /* Device is shut down. */ |
3767 | return 0; | |
3768 | } | |
3769 | ||
3770 | /** | |
3771 | * s2io_xmit - Tx entry point of te driver | |
3772 | * @skb : the socket buffer containing the Tx data. | |
3773 | * @dev : device pointer. | |
3774 | * Description : | |
3775 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
3776 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
3777 | * NOTE: when device cant queue the pkt,just the trans_start variable will | |
3778 | * not be upadted. | |
3779 | * Return value: | |
3780 | * 0 on success & 1 on failure. | |
3781 | */ | |
3782 | ||
ac1f60db | 3783 | static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 3784 | { |
1ee6dd77 | 3785 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
3786 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; |
3787 | register u64 val64; | |
1ee6dd77 RB |
3788 | struct TxD *txdp; |
3789 | struct TxFIFO_element __iomem *tx_fifo; | |
1da177e4 | 3790 | unsigned long flags; |
be3a6b02 K |
3791 | u16 vlan_tag = 0; |
3792 | int vlan_priority = 0; | |
1ee6dd77 | 3793 | struct mac_info *mac_control; |
1da177e4 | 3794 | struct config_param *config; |
75c30b13 | 3795 | int offload_type; |
1da177e4 LT |
3796 | |
3797 | mac_control = &sp->mac_control; | |
3798 | config = &sp->config; | |
3799 | ||
20346722 | 3800 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
1da177e4 | 3801 | spin_lock_irqsave(&sp->tx_lock, flags); |
1da177e4 | 3802 | if (atomic_read(&sp->card_state) == CARD_DOWN) { |
20346722 | 3803 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 LT |
3804 | dev->name); |
3805 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
20346722 K |
3806 | dev_kfree_skb(skb); |
3807 | return 0; | |
1da177e4 LT |
3808 | } |
3809 | ||
3810 | queue = 0; | |
1da177e4 | 3811 | |
be3a6b02 K |
3812 | /* Get Fifo number to Transmit based on vlan priority */ |
3813 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { | |
3814 | vlan_tag = vlan_tx_tag_get(skb); | |
3815 | vlan_priority = vlan_tag >> 13; | |
3816 | queue = config->fifo_mapping[vlan_priority]; | |
3817 | } | |
3818 | ||
20346722 K |
3819 | put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset; |
3820 | get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset; | |
1ee6dd77 | 3821 | txdp = (struct TxD *) mac_control->fifos[queue].list_info[put_off]. |
20346722 K |
3822 | list_virt_addr; |
3823 | ||
3824 | queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1; | |
1da177e4 | 3825 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 AR |
3826 | if (txdp->Host_Control || |
3827 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { | |
776bd20f | 3828 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
1da177e4 LT |
3829 | netif_stop_queue(dev); |
3830 | dev_kfree_skb(skb); | |
3831 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3832 | return 0; | |
3833 | } | |
0b1f7ebe K |
3834 | |
3835 | /* A buffer with no data will be dropped */ | |
3836 | if (!skb->len) { | |
3837 | DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name); | |
3838 | dev_kfree_skb(skb); | |
3839 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3840 | return 0; | |
3841 | } | |
3842 | ||
75c30b13 | 3843 | offload_type = s2io_offload_type(skb); |
75c30b13 | 3844 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 3845 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 3846 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 | 3847 | } |
84fa7933 | 3848 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
3849 | txdp->Control_2 |= |
3850 | (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN | | |
3851 | TXD_TX_CKO_UDP_EN); | |
3852 | } | |
fed5eccd AR |
3853 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
3854 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
1da177e4 | 3855 | txdp->Control_2 |= config->tx_intr_type; |
d8892c6e | 3856 | |
be3a6b02 K |
3857 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { |
3858 | txdp->Control_2 |= TXD_VLAN_ENABLE; | |
3859 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
3860 | } | |
3861 | ||
fed5eccd | 3862 | frg_len = skb->len - skb->data_len; |
75c30b13 | 3863 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
3864 | int ufo_size; |
3865 | ||
75c30b13 | 3866 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
3867 | ufo_size &= ~7; |
3868 | txdp->Control_1 |= TXD_UFO_EN; | |
3869 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
3870 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
3871 | #ifdef __BIG_ENDIAN | |
3872 | sp->ufo_in_band_v[put_off] = | |
3873 | (u64)skb_shinfo(skb)->ip6_frag_id; | |
3874 | #else | |
3875 | sp->ufo_in_band_v[put_off] = | |
3876 | (u64)skb_shinfo(skb)->ip6_frag_id << 32; | |
3877 | #endif | |
3878 | txdp->Host_Control = (unsigned long)sp->ufo_in_band_v; | |
3879 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, | |
3880 | sp->ufo_in_band_v, | |
3881 | sizeof(u64), PCI_DMA_TODEVICE); | |
3882 | txdp++; | |
fed5eccd | 3883 | } |
1da177e4 | 3884 | |
fed5eccd AR |
3885 | txdp->Buffer_Pointer = pci_map_single |
3886 | (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); | |
3887 | txdp->Host_Control = (unsigned long) skb; | |
3888 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); | |
75c30b13 | 3889 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
3890 | txdp->Control_1 |= TXD_UFO_EN; |
3891 | ||
3892 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
3893 | /* For fragmented SKB. */ |
3894 | for (i = 0; i < frg_cnt; i++) { | |
3895 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe K |
3896 | /* A '0' length fragment will be ignored */ |
3897 | if (!frag->size) | |
3898 | continue; | |
1da177e4 LT |
3899 | txdp++; |
3900 | txdp->Buffer_Pointer = (u64) pci_map_page | |
3901 | (sp->pdev, frag->page, frag->page_offset, | |
3902 | frag->size, PCI_DMA_TODEVICE); | |
efd51b5c | 3903 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 3904 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 3905 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
3906 | } |
3907 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
3908 | ||
75c30b13 | 3909 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
3910 | frg_cnt++; /* as Txd0 was used for inband header */ |
3911 | ||
1da177e4 | 3912 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
20346722 | 3913 | val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr; |
1da177e4 LT |
3914 | writeq(val64, &tx_fifo->TxDL_Pointer); |
3915 | ||
3916 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
3917 | TX_FIFO_LAST_LIST); | |
75c30b13 | 3918 | if (offload_type) |
fed5eccd | 3919 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 3920 | |
1da177e4 LT |
3921 | writeq(val64, &tx_fifo->List_Control); |
3922 | ||
303bcb4b K |
3923 | mmiowb(); |
3924 | ||
1da177e4 | 3925 | put_off++; |
863c11a9 AR |
3926 | if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1) |
3927 | put_off = 0; | |
20346722 | 3928 | mac_control->fifos[queue].tx_curr_put_info.offset = put_off; |
1da177e4 LT |
3929 | |
3930 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 3931 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
bd1034f0 | 3932 | sp->mac_control.stats_info->sw_stat.fifo_full_cnt++; |
1da177e4 LT |
3933 | DBG_PRINT(TX_DBG, |
3934 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
3935 | put_off, get_off); | |
3936 | netif_stop_queue(dev); | |
3937 | } | |
3938 | ||
3939 | dev->trans_start = jiffies; | |
3940 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3941 | ||
3942 | return 0; | |
3943 | } | |
3944 | ||
25fff88e K |
3945 | static void |
3946 | s2io_alarm_handle(unsigned long data) | |
3947 | { | |
1ee6dd77 | 3948 | struct s2io_nic *sp = (struct s2io_nic *)data; |
25fff88e K |
3949 | |
3950 | alarm_intr_handler(sp); | |
3951 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); | |
3952 | } | |
3953 | ||
1ee6dd77 | 3954 | static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) |
75c30b13 AR |
3955 | { |
3956 | int rxb_size, level; | |
3957 | ||
3958 | if (!sp->lro) { | |
3959 | rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); | |
3960 | level = rx_buffer_level(sp, rxb_size, rng_n); | |
3961 | ||
3962 | if ((level == PANIC) && (!TASKLET_IN_USE)) { | |
3963 | int ret; | |
3964 | DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); | |
3965 | DBG_PRINT(INTR_DBG, "PANIC levels\n"); | |
3966 | if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { | |
3967 | DBG_PRINT(ERR_DBG, "Out of memory in %s", | |
3968 | __FUNCTION__); | |
3969 | clear_bit(0, (&sp->tasklet_status)); | |
3970 | return -1; | |
3971 | } | |
3972 | clear_bit(0, (&sp->tasklet_status)); | |
3973 | } else if (level == LOW) | |
3974 | tasklet_schedule(&sp->task); | |
3975 | ||
3976 | } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { | |
3977 | DBG_PRINT(ERR_DBG, "%s:Out of memory", sp->dev->name); | |
3978 | DBG_PRINT(ERR_DBG, " in Rx Intr!!\n"); | |
3979 | } | |
3980 | return 0; | |
3981 | } | |
3982 | ||
7d12e780 | 3983 | static irqreturn_t s2io_msi_handle(int irq, void *dev_id) |
cc6e7c44 RA |
3984 | { |
3985 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 | 3986 | struct s2io_nic *sp = dev->priv; |
cc6e7c44 | 3987 | int i; |
1ee6dd77 | 3988 | struct mac_info *mac_control; |
cc6e7c44 RA |
3989 | struct config_param *config; |
3990 | ||
3991 | atomic_inc(&sp->isr_cnt); | |
3992 | mac_control = &sp->mac_control; | |
3993 | config = &sp->config; | |
3994 | DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__); | |
3995 | ||
3996 | /* If Intr is because of Rx Traffic */ | |
3997 | for (i = 0; i < config->rx_ring_num; i++) | |
3998 | rx_intr_handler(&mac_control->rings[i]); | |
3999 | ||
4000 | /* If Intr is because of Tx Traffic */ | |
4001 | for (i = 0; i < config->tx_fifo_num; i++) | |
4002 | tx_intr_handler(&mac_control->fifos[i]); | |
4003 | ||
4004 | /* | |
4005 | * If the Rx buffer count is below the panic threshold then | |
4006 | * reallocate the buffers from the interrupt handler itself, | |
4007 | * else schedule a tasklet to reallocate the buffers. | |
4008 | */ | |
75c30b13 AR |
4009 | for (i = 0; i < config->rx_ring_num; i++) |
4010 | s2io_chk_rx_buffers(sp, i); | |
cc6e7c44 RA |
4011 | |
4012 | atomic_dec(&sp->isr_cnt); | |
4013 | return IRQ_HANDLED; | |
4014 | } | |
4015 | ||
7d12e780 | 4016 | static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) |
cc6e7c44 | 4017 | { |
1ee6dd77 RB |
4018 | struct ring_info *ring = (struct ring_info *)dev_id; |
4019 | struct s2io_nic *sp = ring->nic; | |
cc6e7c44 RA |
4020 | |
4021 | atomic_inc(&sp->isr_cnt); | |
cc6e7c44 | 4022 | |
75c30b13 AR |
4023 | rx_intr_handler(ring); |
4024 | s2io_chk_rx_buffers(sp, ring->ring_no); | |
7d3d0439 | 4025 | |
cc6e7c44 | 4026 | atomic_dec(&sp->isr_cnt); |
cc6e7c44 RA |
4027 | return IRQ_HANDLED; |
4028 | } | |
4029 | ||
7d12e780 | 4030 | static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id) |
cc6e7c44 | 4031 | { |
1ee6dd77 RB |
4032 | struct fifo_info *fifo = (struct fifo_info *)dev_id; |
4033 | struct s2io_nic *sp = fifo->nic; | |
cc6e7c44 RA |
4034 | |
4035 | atomic_inc(&sp->isr_cnt); | |
4036 | tx_intr_handler(fifo); | |
4037 | atomic_dec(&sp->isr_cnt); | |
4038 | return IRQ_HANDLED; | |
4039 | } | |
1ee6dd77 | 4040 | static void s2io_txpic_intr_handle(struct s2io_nic *sp) |
a371a07d | 4041 | { |
1ee6dd77 | 4042 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
a371a07d K |
4043 | u64 val64; |
4044 | ||
4045 | val64 = readq(&bar0->pic_int_status); | |
4046 | if (val64 & PIC_INT_GPIO) { | |
4047 | val64 = readq(&bar0->gpio_int_reg); | |
4048 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4049 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4050 | /* |
4051 | * This is unstable state so clear both up/down | |
4052 | * interrupt and adapter to re-evaluate the link state. | |
4053 | */ | |
a371a07d K |
4054 | val64 |= GPIO_INT_REG_LINK_DOWN; |
4055 | val64 |= GPIO_INT_REG_LINK_UP; | |
4056 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4057 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4058 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4059 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4060 | writeq(val64, &bar0->gpio_int_mask); |
a371a07d | 4061 | } |
c92ca04b AR |
4062 | else if (val64 & GPIO_INT_REG_LINK_UP) { |
4063 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 4064 | /* Enable Adapter */ |
19a60522 SS |
4065 | val64 = readq(&bar0->adapter_control); |
4066 | val64 |= ADAPTER_CNTL_EN; | |
4067 | writeq(val64, &bar0->adapter_control); | |
4068 | val64 |= ADAPTER_LED_ON; | |
4069 | writeq(val64, &bar0->adapter_control); | |
4070 | if (!sp->device_enabled_once) | |
4071 | sp->device_enabled_once = 1; | |
c92ca04b | 4072 | |
19a60522 SS |
4073 | s2io_link(sp, LINK_UP); |
4074 | /* | |
4075 | * unmask link down interrupt and mask link-up | |
4076 | * intr | |
4077 | */ | |
4078 | val64 = readq(&bar0->gpio_int_mask); | |
4079 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4080 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4081 | writeq(val64, &bar0->gpio_int_mask); | |
c92ca04b | 4082 | |
c92ca04b AR |
4083 | }else if (val64 & GPIO_INT_REG_LINK_DOWN) { |
4084 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
4085 | s2io_link(sp, LINK_DOWN); |
4086 | /* Link is down so unmaks link up interrupt */ | |
4087 | val64 = readq(&bar0->gpio_int_mask); | |
4088 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4089 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4090 | writeq(val64, &bar0->gpio_int_mask); | |
a371a07d K |
4091 | } |
4092 | } | |
c92ca04b | 4093 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d K |
4094 | } |
4095 | ||
1da177e4 LT |
4096 | /** |
4097 | * s2io_isr - ISR handler of the device . | |
4098 | * @irq: the irq of the device. | |
4099 | * @dev_id: a void pointer to the dev structure of the NIC. | |
20346722 K |
4100 | * Description: This function is the ISR handler of the device. It |
4101 | * identifies the reason for the interrupt and calls the relevant | |
4102 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4103 | * recv buffers, if their numbers are below the panic value which is |
4104 | * presently set to 25% of the original number of rcv buffers allocated. | |
4105 | * Return value: | |
20346722 | 4106 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4107 | * IRQ_NONE: will be returned if interrupt is not from our device |
4108 | */ | |
7d12e780 | 4109 | static irqreturn_t s2io_isr(int irq, void *dev_id) |
1da177e4 LT |
4110 | { |
4111 | struct net_device *dev = (struct net_device *) dev_id; | |
1ee6dd77 RB |
4112 | struct s2io_nic *sp = dev->priv; |
4113 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
20346722 | 4114 | int i; |
19a60522 | 4115 | u64 reason = 0; |
1ee6dd77 | 4116 | struct mac_info *mac_control; |
1da177e4 LT |
4117 | struct config_param *config; |
4118 | ||
7ba013ac | 4119 | atomic_inc(&sp->isr_cnt); |
1da177e4 LT |
4120 | mac_control = &sp->mac_control; |
4121 | config = &sp->config; | |
4122 | ||
20346722 | 4123 | /* |
1da177e4 LT |
4124 | * Identify the cause for interrupt and call the appropriate |
4125 | * interrupt handler. Causes for the interrupt could be; | |
4126 | * 1. Rx of packet. | |
4127 | * 2. Tx complete. | |
4128 | * 3. Link down. | |
20346722 | 4129 | * 4. Error in any functional blocks of the NIC. |
1da177e4 LT |
4130 | */ |
4131 | reason = readq(&bar0->general_int_status); | |
4132 | ||
4133 | if (!reason) { | |
19a60522 SS |
4134 | /* The interrupt was not raised by us. */ |
4135 | atomic_dec(&sp->isr_cnt); | |
4136 | return IRQ_NONE; | |
4137 | } | |
4138 | else if (unlikely(reason == S2IO_MINUS_ONE) ) { | |
4139 | /* Disable device and get out */ | |
7ba013ac | 4140 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4141 | return IRQ_NONE; |
4142 | } | |
5d3213cc | 4143 | |
db874e65 SS |
4144 | if (napi) { |
4145 | if (reason & GEN_INTR_RXTRAFFIC) { | |
19a60522 | 4146 | if ( likely ( netif_rx_schedule_prep(dev)) ) { |
db874e65 | 4147 | __netif_rx_schedule(dev); |
19a60522 | 4148 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask); |
db874e65 | 4149 | } |
19a60522 SS |
4150 | else |
4151 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
db874e65 SS |
4152 | } |
4153 | } else { | |
4154 | /* | |
4155 | * Rx handler is called by default, without checking for the | |
4156 | * cause of interrupt. | |
4157 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4158 | * will ensure that the actual interrupt causing bit get's | |
4159 | * cleared and hence a read can be avoided. | |
4160 | */ | |
19a60522 SS |
4161 | if (reason & GEN_INTR_RXTRAFFIC) |
4162 | writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int); | |
4163 | ||
db874e65 SS |
4164 | for (i = 0; i < config->rx_ring_num; i++) { |
4165 | rx_intr_handler(&mac_control->rings[i]); | |
1da177e4 LT |
4166 | } |
4167 | } | |
1da177e4 | 4168 | |
863c11a9 AR |
4169 | /* |
4170 | * tx_traffic_int reg is an R1 register, writing all 1's | |
4171 | * will ensure that the actual interrupt causing bit get's | |
4172 | * cleared and hence a read can be avoided. | |
4173 | */ | |
19a60522 SS |
4174 | if (reason & GEN_INTR_TXTRAFFIC) |
4175 | writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int); | |
fe113638 | 4176 | |
863c11a9 AR |
4177 | for (i = 0; i < config->tx_fifo_num; i++) |
4178 | tx_intr_handler(&mac_control->fifos[i]); | |
20346722 | 4179 | |
a371a07d K |
4180 | if (reason & GEN_INTR_TXPIC) |
4181 | s2io_txpic_intr_handle(sp); | |
20346722 K |
4182 | /* |
4183 | * If the Rx buffer count is below the panic threshold then | |
4184 | * reallocate the buffers from the interrupt handler itself, | |
1da177e4 LT |
4185 | * else schedule a tasklet to reallocate the buffers. |
4186 | */ | |
db874e65 SS |
4187 | if (!napi) { |
4188 | for (i = 0; i < config->rx_ring_num; i++) | |
4189 | s2io_chk_rx_buffers(sp, i); | |
4190 | } | |
4191 | ||
4192 | writeq(0, &bar0->general_int_mask); | |
4193 | readl(&bar0->general_int_status); | |
4194 | ||
7ba013ac | 4195 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4196 | return IRQ_HANDLED; |
4197 | } | |
4198 | ||
7ba013ac K |
4199 | /** |
4200 | * s2io_updt_stats - | |
4201 | */ | |
1ee6dd77 | 4202 | static void s2io_updt_stats(struct s2io_nic *sp) |
7ba013ac | 4203 | { |
1ee6dd77 | 4204 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
7ba013ac K |
4205 | u64 val64; |
4206 | int cnt = 0; | |
4207 | ||
4208 | if (atomic_read(&sp->card_state) == CARD_UP) { | |
4209 | /* Apprx 30us on a 133 MHz bus */ | |
4210 | val64 = SET_UPDT_CLICKS(10) | | |
4211 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4212 | writeq(val64, &bar0->stat_cfg); | |
4213 | do { | |
4214 | udelay(100); | |
4215 | val64 = readq(&bar0->stat_cfg); | |
4216 | if (!(val64 & BIT(0))) | |
4217 | break; | |
4218 | cnt++; | |
4219 | if (cnt == 5) | |
4220 | break; /* Updt failed */ | |
4221 | } while(1); | |
75c30b13 | 4222 | } else { |
1ee6dd77 | 4223 | memset(sp->mac_control.stats_info, 0, sizeof(struct stat_block)); |
7ba013ac K |
4224 | } |
4225 | } | |
4226 | ||
1da177e4 | 4227 | /** |
20346722 | 4228 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4229 | * @dev : pointer to the device structure. |
4230 | * Description: | |
20346722 | 4231 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4232 | * structure and returns a pointer to the same. |
4233 | * Return value: | |
4234 | * pointer to the updated net_device_stats structure. | |
4235 | */ | |
4236 | ||
ac1f60db | 4237 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 | 4238 | { |
1ee6dd77 RB |
4239 | struct s2io_nic *sp = dev->priv; |
4240 | struct mac_info *mac_control; | |
1da177e4 LT |
4241 | struct config_param *config; |
4242 | ||
20346722 | 4243 | |
1da177e4 LT |
4244 | mac_control = &sp->mac_control; |
4245 | config = &sp->config; | |
4246 | ||
7ba013ac K |
4247 | /* Configure Stats for immediate updt */ |
4248 | s2io_updt_stats(sp); | |
4249 | ||
4250 | sp->stats.tx_packets = | |
4251 | le32_to_cpu(mac_control->stats_info->tmac_frms); | |
20346722 K |
4252 | sp->stats.tx_errors = |
4253 | le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); | |
4254 | sp->stats.rx_errors = | |
ee705dba | 4255 | le64_to_cpu(mac_control->stats_info->rmac_drop_frms); |
20346722 K |
4256 | sp->stats.multicast = |
4257 | le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); | |
1da177e4 | 4258 | sp->stats.rx_length_errors = |
ee705dba | 4259 | le64_to_cpu(mac_control->stats_info->rmac_long_frms); |
1da177e4 LT |
4260 | |
4261 | return (&sp->stats); | |
4262 | } | |
4263 | ||
4264 | /** | |
4265 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4266 | * @dev : pointer to the device structure | |
4267 | * Description: | |
20346722 K |
4268 | * This function is a driver entry point which gets called by the kernel |
4269 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4270 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4271 | * determine, if multicast address must be enabled or if promiscuous mode | |
4272 | * is to be disabled etc. | |
4273 | * Return value: | |
4274 | * void. | |
4275 | */ | |
4276 | ||
4277 | static void s2io_set_multicast(struct net_device *dev) | |
4278 | { | |
4279 | int i, j, prev_cnt; | |
4280 | struct dev_mc_list *mclist; | |
1ee6dd77 RB |
4281 | struct s2io_nic *sp = dev->priv; |
4282 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4283 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = |
4284 | 0xfeffffffffffULL; | |
4285 | u64 dis_addr = 0xffffffffffffULL, mac_addr = 0; | |
4286 | void __iomem *add; | |
4287 | ||
4288 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4289 | /* Enable all Multicast addresses */ | |
4290 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4291 | &bar0->rmac_addr_data0_mem); | |
4292 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4293 | &bar0->rmac_addr_data1_mem); | |
4294 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
4295 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4296 | RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET); | |
4297 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4298 | /* Wait till command completes */ | |
c92ca04b AR |
4299 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4300 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
4301 | |
4302 | sp->m_cast_flg = 1; | |
4303 | sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET; | |
4304 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { | |
4305 | /* Disable all Multicast addresses */ | |
4306 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4307 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd K |
4308 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4309 | &bar0->rmac_addr_data1_mem); | |
1da177e4 LT |
4310 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4311 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4312 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
4313 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4314 | /* Wait till command completes */ | |
c92ca04b AR |
4315 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4316 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
4317 | |
4318 | sp->m_cast_flg = 0; | |
4319 | sp->all_multi_pos = 0; | |
4320 | } | |
4321 | ||
4322 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4323 | /* Put the NIC into promiscuous mode */ | |
4324 | add = &bar0->mac_cfg; | |
4325 | val64 = readq(&bar0->mac_cfg); | |
4326 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4327 | ||
4328 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4329 | writel((u32) val64, add); | |
4330 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4331 | writel((u32) (val64 >> 32), (add + 4)); | |
4332 | ||
4333 | val64 = readq(&bar0->mac_cfg); | |
4334 | sp->promisc_flg = 1; | |
776bd20f | 4335 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
4336 | dev->name); |
4337 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
4338 | /* Remove the NIC from promiscuous mode */ | |
4339 | add = &bar0->mac_cfg; | |
4340 | val64 = readq(&bar0->mac_cfg); | |
4341 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
4342 | ||
4343 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4344 | writel((u32) val64, add); | |
4345 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4346 | writel((u32) (val64 >> 32), (add + 4)); | |
4347 | ||
4348 | val64 = readq(&bar0->mac_cfg); | |
4349 | sp->promisc_flg = 0; | |
776bd20f | 4350 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", |
1da177e4 LT |
4351 | dev->name); |
4352 | } | |
4353 | ||
4354 | /* Update individual M_CAST address list */ | |
4355 | if ((!sp->m_cast_flg) && dev->mc_count) { | |
4356 | if (dev->mc_count > | |
4357 | (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) { | |
4358 | DBG_PRINT(ERR_DBG, "%s: No more Rx filters ", | |
4359 | dev->name); | |
4360 | DBG_PRINT(ERR_DBG, "can be added, please enable "); | |
4361 | DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n"); | |
4362 | return; | |
4363 | } | |
4364 | ||
4365 | prev_cnt = sp->mc_addr_count; | |
4366 | sp->mc_addr_count = dev->mc_count; | |
4367 | ||
4368 | /* Clear out the previous list of Mc in the H/W. */ | |
4369 | for (i = 0; i < prev_cnt; i++) { | |
4370 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4371 | &bar0->rmac_addr_data0_mem); | |
4372 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4373 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4374 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4375 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4376 | RMAC_ADDR_CMD_MEM_OFFSET | |
4377 | (MAC_MC_ADDR_START_OFFSET + i); | |
4378 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4379 | ||
4380 | /* Wait for command completes */ | |
c92ca04b AR |
4381 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4382 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4383 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4384 | dev->name); | |
4385 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4386 | return; | |
4387 | } | |
4388 | } | |
4389 | ||
4390 | /* Create the new Rx filter list and update the same in H/W. */ | |
4391 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
4392 | i++, mclist = mclist->next) { | |
4393 | memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr, | |
4394 | ETH_ALEN); | |
a7a80d5a | 4395 | mac_addr = 0; |
1da177e4 LT |
4396 | for (j = 0; j < ETH_ALEN; j++) { |
4397 | mac_addr |= mclist->dmi_addr[j]; | |
4398 | mac_addr <<= 8; | |
4399 | } | |
4400 | mac_addr >>= 8; | |
4401 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4402 | &bar0->rmac_addr_data0_mem); | |
4403 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4404 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4405 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4406 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4407 | RMAC_ADDR_CMD_MEM_OFFSET | |
4408 | (i + MAC_MC_ADDR_START_OFFSET); | |
4409 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4410 | ||
4411 | /* Wait for command completes */ | |
c92ca04b AR |
4412 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4413 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4414 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4415 | dev->name); | |
4416 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4417 | return; | |
4418 | } | |
4419 | } | |
4420 | } | |
4421 | } | |
4422 | ||
4423 | /** | |
20346722 | 4424 | * s2io_set_mac_addr - Programs the Xframe mac address |
1da177e4 LT |
4425 | * @dev : pointer to the device structure. |
4426 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 4427 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 4428 | * frames with new Mac Address |
20346722 | 4429 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
4430 | * as defined in errno.h file on failure. |
4431 | */ | |
4432 | ||
26df54bf | 4433 | static int s2io_set_mac_addr(struct net_device *dev, u8 * addr) |
1da177e4 | 4434 | { |
1ee6dd77 RB |
4435 | struct s2io_nic *sp = dev->priv; |
4436 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4437 | register u64 val64, mac_addr = 0; |
4438 | int i; | |
4439 | ||
20346722 | 4440 | /* |
1da177e4 LT |
4441 | * Set the new MAC address as the new unicast filter and reflect this |
4442 | * change on the device address registered with the OS. It will be | |
20346722 | 4443 | * at offset 0. |
1da177e4 LT |
4444 | */ |
4445 | for (i = 0; i < ETH_ALEN; i++) { | |
4446 | mac_addr <<= 8; | |
4447 | mac_addr |= addr[i]; | |
4448 | } | |
4449 | ||
4450 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4451 | &bar0->rmac_addr_data0_mem); | |
4452 | ||
4453 | val64 = | |
4454 | RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4455 | RMAC_ADDR_CMD_MEM_OFFSET(0); | |
4456 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4457 | /* Wait till command completes */ | |
c92ca04b AR |
4458 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4459 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4460 | DBG_PRINT(ERR_DBG, "%s: set_mac_addr failed\n", dev->name); |
4461 | return FAILURE; | |
4462 | } | |
4463 | ||
4464 | return SUCCESS; | |
4465 | } | |
4466 | ||
4467 | /** | |
20346722 | 4468 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
4469 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
4470 | * @info: pointer to the structure with parameters given by ethtool to set | |
4471 | * link information. | |
4472 | * Description: | |
20346722 | 4473 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
4474 | * the NIC. |
4475 | * Return value: | |
4476 | * 0 on success. | |
4477 | */ | |
4478 | ||
4479 | static int s2io_ethtool_sset(struct net_device *dev, | |
4480 | struct ethtool_cmd *info) | |
4481 | { | |
1ee6dd77 | 4482 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4483 | if ((info->autoneg == AUTONEG_ENABLE) || |
4484 | (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL)) | |
4485 | return -EINVAL; | |
4486 | else { | |
4487 | s2io_close(sp->dev); | |
4488 | s2io_open(sp->dev); | |
4489 | } | |
4490 | ||
4491 | return 0; | |
4492 | } | |
4493 | ||
4494 | /** | |
20346722 | 4495 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
4496 | * @sp : private member of the device structure, pointer to the |
4497 | * s2io_nic structure. | |
4498 | * @info : pointer to the structure with parameters given by ethtool | |
4499 | * to return link information. | |
4500 | * Description: | |
4501 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
4502 | * Return value : | |
4503 | * return 0 on success. | |
4504 | */ | |
4505 | ||
4506 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
4507 | { | |
1ee6dd77 | 4508 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4509 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); |
4510 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
4511 | info->port = PORT_FIBRE; | |
4512 | /* info->transceiver?? TODO */ | |
4513 | ||
4514 | if (netif_carrier_ok(sp->dev)) { | |
4515 | info->speed = 10000; | |
4516 | info->duplex = DUPLEX_FULL; | |
4517 | } else { | |
4518 | info->speed = -1; | |
4519 | info->duplex = -1; | |
4520 | } | |
4521 | ||
4522 | info->autoneg = AUTONEG_DISABLE; | |
4523 | return 0; | |
4524 | } | |
4525 | ||
4526 | /** | |
20346722 K |
4527 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
4528 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
4529 | * s2io_nic structure. |
4530 | * @info : pointer to the structure with parameters given by ethtool to | |
4531 | * return driver information. | |
4532 | * Description: | |
4533 | * Returns driver specefic information like name, version etc.. to ethtool. | |
4534 | * Return value: | |
4535 | * void | |
4536 | */ | |
4537 | ||
4538 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
4539 | struct ethtool_drvinfo *info) | |
4540 | { | |
1ee6dd77 | 4541 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 4542 | |
dbc2309d JL |
4543 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
4544 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
4545 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
4546 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
4547 | info->regdump_len = XENA_REG_SPACE; |
4548 | info->eedump_len = XENA_EEPROM_SPACE; | |
4549 | info->testinfo_len = S2IO_TEST_LEN; | |
4550 | info->n_stats = S2IO_STAT_LEN; | |
4551 | } | |
4552 | ||
4553 | /** | |
4554 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 4555 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 4556 | * s2io_nic structure. |
20346722 | 4557 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
4558 | * dumping the registers. |
4559 | * @reg_space: The input argumnet into which all the registers are dumped. | |
4560 | * Description: | |
4561 | * Dumps the entire register space of xFrame NIC into the user given | |
4562 | * buffer area. | |
4563 | * Return value : | |
4564 | * void . | |
4565 | */ | |
4566 | ||
4567 | static void s2io_ethtool_gregs(struct net_device *dev, | |
4568 | struct ethtool_regs *regs, void *space) | |
4569 | { | |
4570 | int i; | |
4571 | u64 reg; | |
4572 | u8 *reg_space = (u8 *) space; | |
1ee6dd77 | 4573 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4574 | |
4575 | regs->len = XENA_REG_SPACE; | |
4576 | regs->version = sp->pdev->subsystem_device; | |
4577 | ||
4578 | for (i = 0; i < regs->len; i += 8) { | |
4579 | reg = readq(sp->bar0 + i); | |
4580 | memcpy((reg_space + i), ®, 8); | |
4581 | } | |
4582 | } | |
4583 | ||
4584 | /** | |
4585 | * s2io_phy_id - timer function that alternates adapter LED. | |
20346722 | 4586 | * @data : address of the private member of the device structure, which |
1da177e4 | 4587 | * is a pointer to the s2io_nic structure, provided as an u32. |
20346722 K |
4588 | * Description: This is actually the timer function that alternates the |
4589 | * adapter LED bit of the adapter control bit to set/reset every time on | |
4590 | * invocation. The timer is set for 1/2 a second, hence tha NIC blinks | |
1da177e4 LT |
4591 | * once every second. |
4592 | */ | |
4593 | static void s2io_phy_id(unsigned long data) | |
4594 | { | |
1ee6dd77 RB |
4595 | struct s2io_nic *sp = (struct s2io_nic *) data; |
4596 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4597 | u64 val64 = 0; |
4598 | u16 subid; | |
4599 | ||
4600 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
4601 | if ((sp->device_type == XFRAME_II_DEVICE) || |
4602 | ((subid & 0xFF) >= 0x07)) { | |
1da177e4 LT |
4603 | val64 = readq(&bar0->gpio_control); |
4604 | val64 ^= GPIO_CTRL_GPIO_0; | |
4605 | writeq(val64, &bar0->gpio_control); | |
4606 | } else { | |
4607 | val64 = readq(&bar0->adapter_control); | |
4608 | val64 ^= ADAPTER_LED_ON; | |
4609 | writeq(val64, &bar0->adapter_control); | |
4610 | } | |
4611 | ||
4612 | mod_timer(&sp->id_timer, jiffies + HZ / 2); | |
4613 | } | |
4614 | ||
4615 | /** | |
4616 | * s2io_ethtool_idnic - To physically identify the nic on the system. | |
4617 | * @sp : private member of the device structure, which is a pointer to the | |
4618 | * s2io_nic structure. | |
20346722 | 4619 | * @id : pointer to the structure with identification parameters given by |
1da177e4 LT |
4620 | * ethtool. |
4621 | * Description: Used to physically identify the NIC on the system. | |
20346722 | 4622 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 4623 | * identification. |
20346722 | 4624 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 LT |
4625 | * identification is possible only if it's link is up. |
4626 | * Return value: | |
4627 | * int , returns 0 on success | |
4628 | */ | |
4629 | ||
4630 | static int s2io_ethtool_idnic(struct net_device *dev, u32 data) | |
4631 | { | |
4632 | u64 val64 = 0, last_gpio_ctrl_val; | |
1ee6dd77 RB |
4633 | struct s2io_nic *sp = dev->priv; |
4634 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4635 | u16 subid; |
4636 | ||
4637 | subid = sp->pdev->subsystem_device; | |
4638 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
541ae68f K |
4639 | if ((sp->device_type == XFRAME_I_DEVICE) && |
4640 | ((subid & 0xFF) < 0x07)) { | |
1da177e4 LT |
4641 | val64 = readq(&bar0->adapter_control); |
4642 | if (!(val64 & ADAPTER_CNTL_EN)) { | |
4643 | printk(KERN_ERR | |
4644 | "Adapter Link down, cannot blink LED\n"); | |
4645 | return -EFAULT; | |
4646 | } | |
4647 | } | |
4648 | if (sp->id_timer.function == NULL) { | |
4649 | init_timer(&sp->id_timer); | |
4650 | sp->id_timer.function = s2io_phy_id; | |
4651 | sp->id_timer.data = (unsigned long) sp; | |
4652 | } | |
4653 | mod_timer(&sp->id_timer, jiffies); | |
4654 | if (data) | |
20346722 | 4655 | msleep_interruptible(data * HZ); |
1da177e4 | 4656 | else |
20346722 | 4657 | msleep_interruptible(MAX_FLICKER_TIME); |
1da177e4 LT |
4658 | del_timer_sync(&sp->id_timer); |
4659 | ||
541ae68f | 4660 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) { |
1da177e4 LT |
4661 | writeq(last_gpio_ctrl_val, &bar0->gpio_control); |
4662 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
4663 | } | |
4664 | ||
4665 | return 0; | |
4666 | } | |
4667 | ||
4668 | /** | |
4669 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 K |
4670 | * @sp : private member of the device structure, which is a pointer to the |
4671 | * s2io_nic structure. | |
1da177e4 LT |
4672 | * @ep : pointer to the structure with pause parameters given by ethtool. |
4673 | * Description: | |
4674 | * Returns the Pause frame generation and reception capability of the NIC. | |
4675 | * Return value: | |
4676 | * void | |
4677 | */ | |
4678 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
4679 | struct ethtool_pauseparam *ep) | |
4680 | { | |
4681 | u64 val64; | |
1ee6dd77 RB |
4682 | struct s2io_nic *sp = dev->priv; |
4683 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4684 | |
4685 | val64 = readq(&bar0->rmac_pause_cfg); | |
4686 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
4687 | ep->tx_pause = TRUE; | |
4688 | if (val64 & RMAC_PAUSE_RX_ENABLE) | |
4689 | ep->rx_pause = TRUE; | |
4690 | ep->autoneg = FALSE; | |
4691 | } | |
4692 | ||
4693 | /** | |
4694 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 4695 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4696 | * s2io_nic structure. |
4697 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
4698 | * Description: | |
4699 | * It can be used to set or reset Pause frame generation or reception | |
4700 | * support of the NIC. | |
4701 | * Return value: | |
4702 | * int, returns 0 on Success | |
4703 | */ | |
4704 | ||
4705 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
20346722 | 4706 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
4707 | { |
4708 | u64 val64; | |
1ee6dd77 RB |
4709 | struct s2io_nic *sp = dev->priv; |
4710 | struct XENA_dev_config __iomem *bar0 = sp->bar0; | |
1da177e4 LT |
4711 | |
4712 | val64 = readq(&bar0->rmac_pause_cfg); | |
4713 | if (ep->tx_pause) | |
4714 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
4715 | else | |
4716 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
4717 | if (ep->rx_pause) | |
4718 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
4719 | else | |
4720 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
4721 | writeq(val64, &bar0->rmac_pause_cfg); | |
4722 | return 0; | |
4723 | } | |
4724 | ||
4725 | /** | |
4726 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 4727 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4728 | * s2io_nic structure. |
4729 | * @off : offset at which the data must be written | |
4730 | * @data : Its an output parameter where the data read at the given | |
20346722 | 4731 | * offset is stored. |
1da177e4 | 4732 | * Description: |
20346722 | 4733 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
4734 | * read data. |
4735 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
4736 | * I2C bus. | |
4737 | * Return value: | |
4738 | * -1 on failure and 0 on success. | |
4739 | */ | |
4740 | ||
4741 | #define S2IO_DEV_ID 5 | |
1ee6dd77 | 4742 | static int read_eeprom(struct s2io_nic * sp, int off, u64 * data) |
1da177e4 LT |
4743 | { |
4744 | int ret = -1; | |
4745 | u32 exit_cnt = 0; | |
4746 | u64 val64; | |
1ee6dd77 | 4747 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4748 | |
ad4ebed0 | 4749 | if (sp->device_type == XFRAME_I_DEVICE) { |
4750 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
4751 | I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ | | |
4752 | I2C_CONTROL_CNTL_START; | |
4753 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
1da177e4 | 4754 | |
ad4ebed0 | 4755 | while (exit_cnt < 5) { |
4756 | val64 = readq(&bar0->i2c_control); | |
4757 | if (I2C_CONTROL_CNTL_END(val64)) { | |
4758 | *data = I2C_CONTROL_GET_DATA(val64); | |
4759 | ret = 0; | |
4760 | break; | |
4761 | } | |
4762 | msleep(50); | |
4763 | exit_cnt++; | |
1da177e4 | 4764 | } |
1da177e4 LT |
4765 | } |
4766 | ||
ad4ebed0 | 4767 | if (sp->device_type == XFRAME_II_DEVICE) { |
4768 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 4769 | SPI_CONTROL_BYTECNT(0x3) | |
ad4ebed0 | 4770 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); |
4771 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4772 | val64 |= SPI_CONTROL_REQ; | |
4773 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4774 | while (exit_cnt < 5) { | |
4775 | val64 = readq(&bar0->spi_control); | |
4776 | if (val64 & SPI_CONTROL_NACK) { | |
4777 | ret = 1; | |
4778 | break; | |
4779 | } else if (val64 & SPI_CONTROL_DONE) { | |
4780 | *data = readq(&bar0->spi_data); | |
4781 | *data &= 0xffffff; | |
4782 | ret = 0; | |
4783 | break; | |
4784 | } | |
4785 | msleep(50); | |
4786 | exit_cnt++; | |
4787 | } | |
4788 | } | |
1da177e4 LT |
4789 | return ret; |
4790 | } | |
4791 | ||
4792 | /** | |
4793 | * write_eeprom - actually writes the relevant part of the data value. | |
4794 | * @sp : private member of the device structure, which is a pointer to the | |
4795 | * s2io_nic structure. | |
4796 | * @off : offset at which the data must be written | |
4797 | * @data : The data that is to be written | |
20346722 | 4798 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
4799 | * the Eeprom. (max of 3) |
4800 | * Description: | |
4801 | * Actually writes the relevant part of the data value into the Eeprom | |
4802 | * through the I2C bus. | |
4803 | * Return value: | |
4804 | * 0 on success, -1 on failure. | |
4805 | */ | |
4806 | ||
1ee6dd77 | 4807 | static int write_eeprom(struct s2io_nic * sp, int off, u64 data, int cnt) |
1da177e4 LT |
4808 | { |
4809 | int exit_cnt = 0, ret = -1; | |
4810 | u64 val64; | |
1ee6dd77 | 4811 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 4812 | |
ad4ebed0 | 4813 | if (sp->device_type == XFRAME_I_DEVICE) { |
4814 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
4815 | I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) | | |
4816 | I2C_CONTROL_CNTL_START; | |
4817 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
4818 | ||
4819 | while (exit_cnt < 5) { | |
4820 | val64 = readq(&bar0->i2c_control); | |
4821 | if (I2C_CONTROL_CNTL_END(val64)) { | |
4822 | if (!(val64 & I2C_CONTROL_NACK)) | |
4823 | ret = 0; | |
4824 | break; | |
4825 | } | |
4826 | msleep(50); | |
4827 | exit_cnt++; | |
4828 | } | |
4829 | } | |
1da177e4 | 4830 | |
ad4ebed0 | 4831 | if (sp->device_type == XFRAME_II_DEVICE) { |
4832 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
4833 | writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data); | |
4834 | ||
4835 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
6aa20a22 | 4836 | SPI_CONTROL_BYTECNT(write_cnt) | |
ad4ebed0 | 4837 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); |
4838 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4839 | val64 |= SPI_CONTROL_REQ; | |
4840 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4841 | while (exit_cnt < 5) { | |
4842 | val64 = readq(&bar0->spi_control); | |
4843 | if (val64 & SPI_CONTROL_NACK) { | |
4844 | ret = 1; | |
4845 | break; | |
4846 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 4847 | ret = 0; |
ad4ebed0 | 4848 | break; |
4849 | } | |
4850 | msleep(50); | |
4851 | exit_cnt++; | |
1da177e4 | 4852 | } |
1da177e4 | 4853 | } |
1da177e4 LT |
4854 | return ret; |
4855 | } | |
1ee6dd77 | 4856 | static void s2io_vpd_read(struct s2io_nic *nic) |
9dc737a7 | 4857 | { |
b41477f3 AR |
4858 | u8 *vpd_data; |
4859 | u8 data; | |
9dc737a7 AR |
4860 | int i=0, cnt, fail = 0; |
4861 | int vpd_addr = 0x80; | |
4862 | ||
4863 | if (nic->device_type == XFRAME_II_DEVICE) { | |
4864 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
4865 | vpd_addr = 0x80; | |
4866 | } | |
4867 | else { | |
4868 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); | |
4869 | vpd_addr = 0x50; | |
4870 | } | |
19a60522 | 4871 | strcpy(nic->serial_num, "NOT AVAILABLE"); |
9dc737a7 | 4872 | |
b41477f3 AR |
4873 | vpd_data = kmalloc(256, GFP_KERNEL); |
4874 | if (!vpd_data) | |
4875 | return; | |
4876 | ||
9dc737a7 AR |
4877 | for (i = 0; i < 256; i +=4 ) { |
4878 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); | |
4879 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
4880 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
4881 | for (cnt = 0; cnt <5; cnt++) { | |
4882 | msleep(2); | |
4883 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
4884 | if (data == 0x80) | |
4885 | break; | |
4886 | } | |
4887 | if (cnt >= 5) { | |
4888 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
4889 | fail = 1; | |
4890 | break; | |
4891 | } | |
4892 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
4893 | (u32 *)&vpd_data[i]); | |
4894 | } | |
19a60522 SS |
4895 | |
4896 | if(!fail) { | |
4897 | /* read serial number of adapter */ | |
4898 | for (cnt = 0; cnt < 256; cnt++) { | |
4899 | if ((vpd_data[cnt] == 'S') && | |
4900 | (vpd_data[cnt+1] == 'N') && | |
4901 | (vpd_data[cnt+2] < VPD_STRING_LEN)) { | |
4902 | memset(nic->serial_num, 0, VPD_STRING_LEN); | |
4903 | memcpy(nic->serial_num, &vpd_data[cnt + 3], | |
4904 | vpd_data[cnt+2]); | |
4905 | break; | |
4906 | } | |
4907 | } | |
4908 | } | |
4909 | ||
4910 | if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) { | |
9dc737a7 AR |
4911 | memset(nic->product_name, 0, vpd_data[1]); |
4912 | memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); | |
4913 | } | |
b41477f3 | 4914 | kfree(vpd_data); |
9dc737a7 AR |
4915 | } |
4916 | ||
1da177e4 LT |
4917 | /** |
4918 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
4919 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 4920 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
4921 | * containing all relevant information. |
4922 | * @data_buf : user defined value to be written into Eeprom. | |
4923 | * Description: Reads the values stored in the Eeprom at given offset | |
4924 | * for a given length. Stores these values int the input argument data | |
4925 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
4926 | * Return value: | |
4927 | * int 0 on success | |
4928 | */ | |
4929 | ||
4930 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
20346722 | 4931 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 4932 | { |
ad4ebed0 | 4933 | u32 i, valid; |
4934 | u64 data; | |
1ee6dd77 | 4935 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4936 | |
4937 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
4938 | ||
4939 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
4940 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
4941 | ||
4942 | for (i = 0; i < eeprom->len; i += 4) { | |
4943 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
4944 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
4945 | return -EFAULT; | |
4946 | } | |
4947 | valid = INV(data); | |
4948 | memcpy((data_buf + i), &valid, 4); | |
4949 | } | |
4950 | return 0; | |
4951 | } | |
4952 | ||
4953 | /** | |
4954 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
4955 | * @sp : private member of the device structure, which is a pointer to the | |
4956 | * s2io_nic structure. | |
20346722 | 4957 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
4958 | * containing all relevant information. |
4959 | * @data_buf ; user defined value to be written into Eeprom. | |
4960 | * Description: | |
4961 | * Tries to write the user provided value in the Eeprom, at the offset | |
4962 | * given by the user. | |
4963 | * Return value: | |
4964 | * 0 on success, -EFAULT on failure. | |
4965 | */ | |
4966 | ||
4967 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
4968 | struct ethtool_eeprom *eeprom, | |
4969 | u8 * data_buf) | |
4970 | { | |
4971 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 4972 | u64 valid = 0, data; |
1ee6dd77 | 4973 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
4974 | |
4975 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
4976 | DBG_PRINT(ERR_DBG, | |
4977 | "ETHTOOL_WRITE_EEPROM Err: Magic value "); | |
4978 | DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n", | |
4979 | eeprom->magic); | |
4980 | return -EFAULT; | |
4981 | } | |
4982 | ||
4983 | while (len) { | |
4984 | data = (u32) data_buf[cnt] & 0x000000FF; | |
4985 | if (data) { | |
4986 | valid = (u32) (data << 24); | |
4987 | } else | |
4988 | valid = data; | |
4989 | ||
4990 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
4991 | DBG_PRINT(ERR_DBG, | |
4992 | "ETHTOOL_WRITE_EEPROM Err: Cannot "); | |
4993 | DBG_PRINT(ERR_DBG, | |
4994 | "write into the specified offset\n"); | |
4995 | return -EFAULT; | |
4996 | } | |
4997 | cnt++; | |
4998 | len--; | |
4999 | } | |
5000 | ||
5001 | return 0; | |
5002 | } | |
5003 | ||
5004 | /** | |
20346722 K |
5005 | * s2io_register_test - reads and writes into all clock domains. |
5006 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5007 | * s2io_nic structure. |
5008 | * @data : variable that returns the result of each of the test conducted b | |
5009 | * by the driver. | |
5010 | * Description: | |
5011 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5012 | * see that registers in all the three regions are accessible. | |
5013 | * Return value: | |
5014 | * 0 on success. | |
5015 | */ | |
5016 | ||
1ee6dd77 | 5017 | static int s2io_register_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5018 | { |
1ee6dd77 | 5019 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
ad4ebed0 | 5020 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5021 | int fail = 0; |
5022 | ||
20346722 K |
5023 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5024 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 LT |
5025 | fail = 1; |
5026 | DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n"); | |
5027 | } | |
5028 | ||
5029 | val64 = readq(&bar0->rmac_pause_cfg); | |
5030 | if (val64 != 0xc000ffff00000000ULL) { | |
5031 | fail = 1; | |
5032 | DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n"); | |
5033 | } | |
5034 | ||
5035 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5036 | if (sp->device_type == XFRAME_II_DEVICE) |
5037 | exp_val = 0x0404040404040404ULL; | |
5038 | else | |
5039 | exp_val = 0x0808080808080808ULL; | |
5040 | if (val64 != exp_val) { | |
1da177e4 LT |
5041 | fail = 1; |
5042 | DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n"); | |
5043 | } | |
5044 | ||
5045 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5046 | if (val64 != 0x000000001923141EULL) { | |
5047 | fail = 1; | |
5048 | DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n"); | |
5049 | } | |
5050 | ||
5051 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5052 | writeq(val64, &bar0->xmsi_data); | |
5053 | val64 = readq(&bar0->xmsi_data); | |
5054 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5055 | fail = 1; | |
5056 | DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n"); | |
5057 | } | |
5058 | ||
5059 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5060 | writeq(val64, &bar0->xmsi_data); | |
5061 | val64 = readq(&bar0->xmsi_data); | |
5062 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5063 | fail = 1; | |
5064 | DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n"); | |
5065 | } | |
5066 | ||
5067 | *data = fail; | |
ad4ebed0 | 5068 | return fail; |
1da177e4 LT |
5069 | } |
5070 | ||
5071 | /** | |
20346722 | 5072 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5073 | * @sp : private member of the device structure, which is a pointer to the |
5074 | * s2io_nic structure. | |
5075 | * @data:variable that returns the result of each of the test conducted by | |
5076 | * the driver. | |
5077 | * Description: | |
20346722 | 5078 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5079 | * register. |
5080 | * Return value: | |
5081 | * 0 on success. | |
5082 | */ | |
5083 | ||
1ee6dd77 | 5084 | static int s2io_eeprom_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5085 | { |
5086 | int fail = 0; | |
ad4ebed0 | 5087 | u64 ret_data, org_4F0, org_7F0; |
5088 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5089 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5090 | |
5091 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5092 | /* Note that SPI interface allows write access to all areas |
5093 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5094 | */ | |
5095 | if (sp->device_type == XFRAME_I_DEVICE) | |
5096 | if (!write_eeprom(sp, 0, 0, 3)) | |
5097 | fail = 1; | |
5098 | ||
5099 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5100 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5101 | saved_4F0 = 1; | |
5102 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5103 | saved_7F0 = 1; | |
1da177e4 LT |
5104 | |
5105 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5106 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5107 | fail = 1; |
5108 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5109 | fail = 1; | |
5110 | ||
ad4ebed0 | 5111 | if (ret_data != 0x012345) { |
26b7625c AM |
5112 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
5113 | "Data written %llx Data read %llx\n", | |
5114 | dev->name, (unsigned long long)0x12345, | |
5115 | (unsigned long long)ret_data); | |
1da177e4 | 5116 | fail = 1; |
ad4ebed0 | 5117 | } |
1da177e4 LT |
5118 | |
5119 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5120 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5121 | |
5122 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 5123 | if (sp->device_type == XFRAME_I_DEVICE) |
5124 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
5125 | fail = 1; | |
1da177e4 | 5126 | |
ad4ebed0 | 5127 | /* Test Write Request at offset 0x7f0 */ |
5128 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 5129 | fail = 1; |
ad4ebed0 | 5130 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
5131 | fail = 1; |
5132 | ||
ad4ebed0 | 5133 | if (ret_data != 0x012345) { |
26b7625c AM |
5134 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
5135 | "Data written %llx Data read %llx\n", | |
5136 | dev->name, (unsigned long long)0x12345, | |
5137 | (unsigned long long)ret_data); | |
1da177e4 | 5138 | fail = 1; |
ad4ebed0 | 5139 | } |
1da177e4 LT |
5140 | |
5141 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5142 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 5143 | |
ad4ebed0 | 5144 | if (sp->device_type == XFRAME_I_DEVICE) { |
5145 | /* Test Write Error at offset 0x80 */ | |
5146 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
5147 | fail = 1; | |
1da177e4 | 5148 | |
ad4ebed0 | 5149 | /* Test Write Error at offset 0xfc */ |
5150 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
5151 | fail = 1; | |
1da177e4 | 5152 | |
ad4ebed0 | 5153 | /* Test Write Error at offset 0x100 */ |
5154 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
5155 | fail = 1; | |
1da177e4 | 5156 | |
ad4ebed0 | 5157 | /* Test Write Error at offset 4ec */ |
5158 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
5159 | fail = 1; | |
5160 | } | |
5161 | ||
5162 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
5163 | if (saved_4F0) | |
5164 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
5165 | if (saved_7F0) | |
5166 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
5167 | |
5168 | *data = fail; | |
ad4ebed0 | 5169 | return fail; |
1da177e4 LT |
5170 | } |
5171 | ||
5172 | /** | |
5173 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 5174 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 5175 | * s2io_nic structure. |
20346722 | 5176 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
5177 | * the driver. |
5178 | * Description: | |
5179 | * This invokes the MemBist test of the card. We give around | |
5180 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 5181 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
5182 | * Return value: |
5183 | * 0 on success and -1 on failure. | |
5184 | */ | |
5185 | ||
1ee6dd77 | 5186 | static int s2io_bist_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 LT |
5187 | { |
5188 | u8 bist = 0; | |
5189 | int cnt = 0, ret = -1; | |
5190 | ||
5191 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5192 | bist |= PCI_BIST_START; | |
5193 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
5194 | ||
5195 | while (cnt < 20) { | |
5196 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5197 | if (!(bist & PCI_BIST_START)) { | |
5198 | *data = (bist & PCI_BIST_CODE_MASK); | |
5199 | ret = 0; | |
5200 | break; | |
5201 | } | |
5202 | msleep(100); | |
5203 | cnt++; | |
5204 | } | |
5205 | ||
5206 | return ret; | |
5207 | } | |
5208 | ||
5209 | /** | |
20346722 K |
5210 | * s2io-link_test - verifies the link state of the nic |
5211 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5212 | * s2io_nic structure. |
5213 | * @data: variable that returns the result of each of the test conducted by | |
5214 | * the driver. | |
5215 | * Description: | |
20346722 | 5216 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
5217 | * argument 'data' appropriately. |
5218 | * Return value: | |
5219 | * 0 on success. | |
5220 | */ | |
5221 | ||
1ee6dd77 | 5222 | static int s2io_link_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5223 | { |
1ee6dd77 | 5224 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 LT |
5225 | u64 val64; |
5226 | ||
5227 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 5228 | if(!(LINK_IS_UP(val64))) |
1da177e4 | 5229 | *data = 1; |
c92ca04b AR |
5230 | else |
5231 | *data = 0; | |
1da177e4 | 5232 | |
b41477f3 | 5233 | return *data; |
1da177e4 LT |
5234 | } |
5235 | ||
5236 | /** | |
20346722 K |
5237 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
5238 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 5239 | * s2io_nic structure. |
20346722 | 5240 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
5241 | * conducted by the driver. |
5242 | * Description: | |
20346722 | 5243 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
5244 | * access to the RldRam chip on the NIC. |
5245 | * Return value: | |
5246 | * 0 on success. | |
5247 | */ | |
5248 | ||
1ee6dd77 | 5249 | static int s2io_rldram_test(struct s2io_nic * sp, uint64_t * data) |
1da177e4 | 5250 | { |
1ee6dd77 | 5251 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
1da177e4 | 5252 | u64 val64; |
ad4ebed0 | 5253 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
5254 | |
5255 | val64 = readq(&bar0->adapter_control); | |
5256 | val64 &= ~ADAPTER_ECC_EN; | |
5257 | writeq(val64, &bar0->adapter_control); | |
5258 | ||
5259 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5260 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 5261 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
5262 | |
5263 | val64 = readq(&bar0->mc_rldram_mrs); | |
5264 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
5265 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5266 | ||
5267 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
5268 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5269 | ||
5270 | while (iteration < 2) { | |
5271 | val64 = 0x55555555aaaa0000ULL; | |
5272 | if (iteration == 1) { | |
5273 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5274 | } | |
5275 | writeq(val64, &bar0->mc_rldram_test_d0); | |
5276 | ||
5277 | val64 = 0xaaaa5a5555550000ULL; | |
5278 | if (iteration == 1) { | |
5279 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5280 | } | |
5281 | writeq(val64, &bar0->mc_rldram_test_d1); | |
5282 | ||
5283 | val64 = 0x55aaaaaaaa5a0000ULL; | |
5284 | if (iteration == 1) { | |
5285 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5286 | } | |
5287 | writeq(val64, &bar0->mc_rldram_test_d2); | |
5288 | ||
ad4ebed0 | 5289 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
5290 | writeq(val64, &bar0->mc_rldram_test_add); |
5291 | ||
ad4ebed0 | 5292 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE | |
5293 | MC_RLDRAM_TEST_GO; | |
5294 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5295 | |
5296 | for (cnt = 0; cnt < 5; cnt++) { | |
5297 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5298 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5299 | break; | |
5300 | msleep(200); | |
5301 | } | |
5302 | ||
5303 | if (cnt == 5) | |
5304 | break; | |
5305 | ||
ad4ebed0 | 5306 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
5307 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5308 | |
5309 | for (cnt = 0; cnt < 5; cnt++) { | |
5310 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5311 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5312 | break; | |
5313 | msleep(500); | |
5314 | } | |
5315 | ||
5316 | if (cnt == 5) | |
5317 | break; | |
5318 | ||
5319 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 5320 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
5321 | test_fail = 1; | |
1da177e4 LT |
5322 | |
5323 | iteration++; | |
5324 | } | |
5325 | ||
ad4ebed0 | 5326 | *data = test_fail; |
1da177e4 | 5327 | |
ad4ebed0 | 5328 | /* Bring the adapter out of test mode */ |
5329 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
5330 | ||
5331 | return test_fail; | |
1da177e4 LT |
5332 | } |
5333 | ||
5334 | /** | |
5335 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
5336 | * @sp : private member of the device structure, which is a pointer to the | |
5337 | * s2io_nic structure. | |
5338 | * @ethtest : pointer to a ethtool command specific structure that will be | |
5339 | * returned to the user. | |
20346722 | 5340 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
5341 | * conducted by the driver. |
5342 | * Description: | |
5343 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
5344 | * the health of the card. | |
5345 | * Return value: | |
5346 | * void | |
5347 | */ | |
5348 | ||
5349 | static void s2io_ethtool_test(struct net_device *dev, | |
5350 | struct ethtool_test *ethtest, | |
5351 | uint64_t * data) | |
5352 | { | |
1ee6dd77 | 5353 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5354 | int orig_state = netif_running(sp->dev); |
5355 | ||
5356 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
5357 | /* Offline Tests. */ | |
20346722 | 5358 | if (orig_state) |
1da177e4 | 5359 | s2io_close(sp->dev); |
1da177e4 LT |
5360 | |
5361 | if (s2io_register_test(sp, &data[0])) | |
5362 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5363 | ||
5364 | s2io_reset(sp); | |
1da177e4 LT |
5365 | |
5366 | if (s2io_rldram_test(sp, &data[3])) | |
5367 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5368 | ||
5369 | s2io_reset(sp); | |
1da177e4 LT |
5370 | |
5371 | if (s2io_eeprom_test(sp, &data[1])) | |
5372 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5373 | ||
5374 | if (s2io_bist_test(sp, &data[4])) | |
5375 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5376 | ||
5377 | if (orig_state) | |
5378 | s2io_open(sp->dev); | |
5379 | ||
5380 | data[2] = 0; | |
5381 | } else { | |
5382 | /* Online Tests. */ | |
5383 | if (!orig_state) { | |
5384 | DBG_PRINT(ERR_DBG, | |
5385 | "%s: is not up, cannot run test\n", | |
5386 | dev->name); | |
5387 | data[0] = -1; | |
5388 | data[1] = -1; | |
5389 | data[2] = -1; | |
5390 | data[3] = -1; | |
5391 | data[4] = -1; | |
5392 | } | |
5393 | ||
5394 | if (s2io_link_test(sp, &data[2])) | |
5395 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5396 | ||
5397 | data[0] = 0; | |
5398 | data[1] = 0; | |
5399 | data[3] = 0; | |
5400 | data[4] = 0; | |
5401 | } | |
5402 | } | |
5403 | ||
5404 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
5405 | struct ethtool_stats *estats, | |
5406 | u64 * tmp_stats) | |
5407 | { | |
5408 | int i = 0; | |
1ee6dd77 RB |
5409 | struct s2io_nic *sp = dev->priv; |
5410 | struct stat_block *stat_info = sp->mac_control.stats_info; | |
1da177e4 | 5411 | |
7ba013ac | 5412 | s2io_updt_stats(sp); |
541ae68f K |
5413 | tmp_stats[i++] = |
5414 | (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 | | |
5415 | le32_to_cpu(stat_info->tmac_frms); | |
5416 | tmp_stats[i++] = | |
5417 | (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 | | |
5418 | le32_to_cpu(stat_info->tmac_data_octets); | |
1da177e4 | 5419 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms); |
541ae68f K |
5420 | tmp_stats[i++] = |
5421 | (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 | | |
5422 | le32_to_cpu(stat_info->tmac_mcst_frms); | |
5423 | tmp_stats[i++] = | |
5424 | (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 | | |
5425 | le32_to_cpu(stat_info->tmac_bcst_frms); | |
1da177e4 | 5426 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms); |
bd1034f0 AR |
5427 | tmp_stats[i++] = |
5428 | (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 | | |
5429 | le32_to_cpu(stat_info->tmac_ttl_octets); | |
5430 | tmp_stats[i++] = | |
5431 | (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 | | |
5432 | le32_to_cpu(stat_info->tmac_ucst_frms); | |
5433 | tmp_stats[i++] = | |
5434 | (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 | | |
5435 | le32_to_cpu(stat_info->tmac_nucst_frms); | |
541ae68f K |
5436 | tmp_stats[i++] = |
5437 | (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 | | |
5438 | le32_to_cpu(stat_info->tmac_any_err_frms); | |
bd1034f0 | 5439 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets); |
1da177e4 | 5440 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets); |
541ae68f K |
5441 | tmp_stats[i++] = |
5442 | (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 | | |
5443 | le32_to_cpu(stat_info->tmac_vld_ip); | |
5444 | tmp_stats[i++] = | |
5445 | (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 | | |
5446 | le32_to_cpu(stat_info->tmac_drop_ip); | |
5447 | tmp_stats[i++] = | |
5448 | (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 | | |
5449 | le32_to_cpu(stat_info->tmac_icmp); | |
5450 | tmp_stats[i++] = | |
5451 | (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 | | |
5452 | le32_to_cpu(stat_info->tmac_rst_tcp); | |
1da177e4 | 5453 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp); |
541ae68f K |
5454 | tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 | |
5455 | le32_to_cpu(stat_info->tmac_udp); | |
5456 | tmp_stats[i++] = | |
5457 | (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 | | |
5458 | le32_to_cpu(stat_info->rmac_vld_frms); | |
5459 | tmp_stats[i++] = | |
5460 | (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 | | |
5461 | le32_to_cpu(stat_info->rmac_data_octets); | |
1da177e4 LT |
5462 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms); |
5463 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms); | |
541ae68f K |
5464 | tmp_stats[i++] = |
5465 | (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 | | |
5466 | le32_to_cpu(stat_info->rmac_vld_mcst_frms); | |
5467 | tmp_stats[i++] = | |
5468 | (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 | | |
5469 | le32_to_cpu(stat_info->rmac_vld_bcst_frms); | |
1da177e4 | 5470 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms); |
bd1034f0 | 5471 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms); |
1da177e4 LT |
5472 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms); |
5473 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms); | |
bd1034f0 AR |
5474 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms); |
5475 | tmp_stats[i++] = | |
5476 | (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 | | |
5477 | le32_to_cpu(stat_info->rmac_ttl_octets); | |
5478 | tmp_stats[i++] = | |
5479 | (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow) | |
5480 | << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms); | |
5481 | tmp_stats[i++] = | |
5482 | (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow) | |
5483 | << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms); | |
541ae68f K |
5484 | tmp_stats[i++] = |
5485 | (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 | | |
5486 | le32_to_cpu(stat_info->rmac_discarded_frms); | |
bd1034f0 AR |
5487 | tmp_stats[i++] = |
5488 | (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow) | |
5489 | << 32 | le32_to_cpu(stat_info->rmac_drop_events); | |
5490 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets); | |
5491 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms); | |
541ae68f K |
5492 | tmp_stats[i++] = |
5493 | (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 | | |
5494 | le32_to_cpu(stat_info->rmac_usized_frms); | |
5495 | tmp_stats[i++] = | |
5496 | (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 | | |
5497 | le32_to_cpu(stat_info->rmac_osized_frms); | |
5498 | tmp_stats[i++] = | |
5499 | (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 | | |
5500 | le32_to_cpu(stat_info->rmac_frag_frms); | |
5501 | tmp_stats[i++] = | |
5502 | (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 | | |
5503 | le32_to_cpu(stat_info->rmac_jabber_frms); | |
bd1034f0 AR |
5504 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms); |
5505 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms); | |
5506 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms); | |
5507 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms); | |
5508 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms); | |
5509 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms); | |
5510 | tmp_stats[i++] = | |
5511 | (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 | | |
541ae68f | 5512 | le32_to_cpu(stat_info->rmac_ip); |
1da177e4 LT |
5513 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets); |
5514 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip); | |
bd1034f0 AR |
5515 | tmp_stats[i++] = |
5516 | (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 | | |
541ae68f | 5517 | le32_to_cpu(stat_info->rmac_drop_ip); |
bd1034f0 AR |
5518 | tmp_stats[i++] = |
5519 | (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 | | |
541ae68f | 5520 | le32_to_cpu(stat_info->rmac_icmp); |
1da177e4 | 5521 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp); |
bd1034f0 AR |
5522 | tmp_stats[i++] = |
5523 | (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 | | |
541ae68f K |
5524 | le32_to_cpu(stat_info->rmac_udp); |
5525 | tmp_stats[i++] = | |
5526 | (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 | | |
5527 | le32_to_cpu(stat_info->rmac_err_drp_udp); | |
bd1034f0 AR |
5528 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym); |
5529 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0); | |
5530 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1); | |
5531 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2); | |
5532 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3); | |
5533 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4); | |
5534 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5); | |
5535 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6); | |
5536 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7); | |
5537 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0); | |
5538 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1); | |
5539 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2); | |
5540 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3); | |
5541 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4); | |
5542 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5); | |
5543 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6); | |
5544 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7); | |
541ae68f K |
5545 | tmp_stats[i++] = |
5546 | (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 | | |
5547 | le32_to_cpu(stat_info->rmac_pause_cnt); | |
bd1034f0 AR |
5548 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt); |
5549 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt); | |
541ae68f K |
5550 | tmp_stats[i++] = |
5551 | (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 | | |
5552 | le32_to_cpu(stat_info->rmac_accepted_ip); | |
1da177e4 | 5553 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp); |
bd1034f0 AR |
5554 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt); |
5555 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt); | |
5556 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt); | |
5557 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt); | |
5558 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt); | |
5559 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt); | |
5560 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt); | |
5561 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt); | |
5562 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt); | |
5563 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt); | |
5564 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt); | |
5565 | tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt); | |
5566 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt); | |
5567 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt); | |
5568 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt); | |
5569 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt); | |
5570 | tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt); | |
5571 | tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt); | |
5572 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms); | |
5573 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms); | |
5574 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_8192_max_frms); | |
5575 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms); | |
5576 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms); | |
5577 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms); | |
5578 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms); | |
5579 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms); | |
5580 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard); | |
5581 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard); | |
5582 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard); | |
5583 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard); | |
5584 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard); | |
5585 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard); | |
5586 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard); | |
5587 | tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt); | |
7ba013ac K |
5588 | tmp_stats[i++] = 0; |
5589 | tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs; | |
5590 | tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs; | |
bd1034f0 AR |
5591 | tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt; |
5592 | tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt; | |
5593 | tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt; | |
5594 | tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt; | |
5595 | tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt; | |
5596 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high; | |
5597 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low; | |
5598 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high; | |
5599 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low; | |
5600 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high; | |
5601 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low; | |
5602 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high; | |
5603 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low; | |
5604 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high; | |
5605 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low; | |
5606 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high; | |
5607 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low; | |
7d3d0439 RA |
5608 | tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt; |
5609 | tmp_stats[i++] = stat_info->sw_stat.sending_both; | |
5610 | tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts; | |
5611 | tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts; | |
fe931395 | 5612 | if (stat_info->sw_stat.num_aggregations) { |
bd1034f0 AR |
5613 | u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated; |
5614 | int count = 0; | |
6aa20a22 | 5615 | /* |
bd1034f0 AR |
5616 | * Since 64-bit divide does not work on all platforms, |
5617 | * do repeated subtraction. | |
5618 | */ | |
5619 | while (tmp >= stat_info->sw_stat.num_aggregations) { | |
5620 | tmp -= stat_info->sw_stat.num_aggregations; | |
5621 | count++; | |
5622 | } | |
5623 | tmp_stats[i++] = count; | |
fe931395 | 5624 | } |
bd1034f0 AR |
5625 | else |
5626 | tmp_stats[i++] = 0; | |
1da177e4 LT |
5627 | } |
5628 | ||
ac1f60db | 5629 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 LT |
5630 | { |
5631 | return (XENA_REG_SPACE); | |
5632 | } | |
5633 | ||
5634 | ||
ac1f60db | 5635 | static u32 s2io_ethtool_get_rx_csum(struct net_device * dev) |
1da177e4 | 5636 | { |
1ee6dd77 | 5637 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5638 | |
5639 | return (sp->rx_csum); | |
5640 | } | |
ac1f60db AB |
5641 | |
5642 | static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
1da177e4 | 5643 | { |
1ee6dd77 | 5644 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5645 | |
5646 | if (data) | |
5647 | sp->rx_csum = 1; | |
5648 | else | |
5649 | sp->rx_csum = 0; | |
5650 | ||
5651 | return 0; | |
5652 | } | |
ac1f60db AB |
5653 | |
5654 | static int s2io_get_eeprom_len(struct net_device *dev) | |
1da177e4 LT |
5655 | { |
5656 | return (XENA_EEPROM_SPACE); | |
5657 | } | |
5658 | ||
ac1f60db | 5659 | static int s2io_ethtool_self_test_count(struct net_device *dev) |
1da177e4 LT |
5660 | { |
5661 | return (S2IO_TEST_LEN); | |
5662 | } | |
ac1f60db AB |
5663 | |
5664 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
5665 | u32 stringset, u8 * data) | |
1da177e4 LT |
5666 | { |
5667 | switch (stringset) { | |
5668 | case ETH_SS_TEST: | |
5669 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
5670 | break; | |
5671 | case ETH_SS_STATS: | |
5672 | memcpy(data, ðtool_stats_keys, | |
5673 | sizeof(ethtool_stats_keys)); | |
5674 | } | |
5675 | } | |
1da177e4 LT |
5676 | static int s2io_ethtool_get_stats_count(struct net_device *dev) |
5677 | { | |
5678 | return (S2IO_STAT_LEN); | |
5679 | } | |
5680 | ||
ac1f60db | 5681 | static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 LT |
5682 | { |
5683 | if (data) | |
5684 | dev->features |= NETIF_F_IP_CSUM; | |
5685 | else | |
5686 | dev->features &= ~NETIF_F_IP_CSUM; | |
5687 | ||
5688 | return 0; | |
5689 | } | |
5690 | ||
75c30b13 AR |
5691 | static u32 s2io_ethtool_op_get_tso(struct net_device *dev) |
5692 | { | |
5693 | return (dev->features & NETIF_F_TSO) != 0; | |
5694 | } | |
5695 | static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) | |
5696 | { | |
5697 | if (data) | |
5698 | dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); | |
5699 | else | |
5700 | dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
5701 | ||
5702 | return 0; | |
5703 | } | |
1da177e4 | 5704 | |
7282d491 | 5705 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
5706 | .get_settings = s2io_ethtool_gset, |
5707 | .set_settings = s2io_ethtool_sset, | |
5708 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
5709 | .get_regs_len = s2io_ethtool_get_regs_len, | |
5710 | .get_regs = s2io_ethtool_gregs, | |
5711 | .get_link = ethtool_op_get_link, | |
5712 | .get_eeprom_len = s2io_get_eeprom_len, | |
5713 | .get_eeprom = s2io_ethtool_geeprom, | |
5714 | .set_eeprom = s2io_ethtool_seeprom, | |
5715 | .get_pauseparam = s2io_ethtool_getpause_data, | |
5716 | .set_pauseparam = s2io_ethtool_setpause_data, | |
5717 | .get_rx_csum = s2io_ethtool_get_rx_csum, | |
5718 | .set_rx_csum = s2io_ethtool_set_rx_csum, | |
5719 | .get_tx_csum = ethtool_op_get_tx_csum, | |
5720 | .set_tx_csum = s2io_ethtool_op_set_tx_csum, | |
5721 | .get_sg = ethtool_op_get_sg, | |
5722 | .set_sg = ethtool_op_set_sg, | |
75c30b13 AR |
5723 | .get_tso = s2io_ethtool_op_get_tso, |
5724 | .set_tso = s2io_ethtool_op_set_tso, | |
fed5eccd AR |
5725 | .get_ufo = ethtool_op_get_ufo, |
5726 | .set_ufo = ethtool_op_set_ufo, | |
1da177e4 LT |
5727 | .self_test_count = s2io_ethtool_self_test_count, |
5728 | .self_test = s2io_ethtool_test, | |
5729 | .get_strings = s2io_ethtool_get_strings, | |
5730 | .phys_id = s2io_ethtool_idnic, | |
5731 | .get_stats_count = s2io_ethtool_get_stats_count, | |
5732 | .get_ethtool_stats = s2io_get_ethtool_stats | |
5733 | }; | |
5734 | ||
5735 | /** | |
20346722 | 5736 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
5737 | * @dev : Device pointer. |
5738 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
5739 | * a proprietary structure used to pass information to the driver. | |
5740 | * @cmd : This is used to distinguish between the different commands that | |
5741 | * can be passed to the IOCTL functions. | |
5742 | * Description: | |
20346722 K |
5743 | * Currently there are no special functionality supported in IOCTL, hence |
5744 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
5745 | */ |
5746 | ||
ac1f60db | 5747 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
5748 | { |
5749 | return -EOPNOTSUPP; | |
5750 | } | |
5751 | ||
5752 | /** | |
5753 | * s2io_change_mtu - entry point to change MTU size for the device. | |
5754 | * @dev : device pointer. | |
5755 | * @new_mtu : the new MTU size for the device. | |
5756 | * Description: A driver entry point to change MTU size for the device. | |
5757 | * Before changing the MTU the device must be stopped. | |
5758 | * Return value: | |
5759 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
5760 | * file on failure. | |
5761 | */ | |
5762 | ||
ac1f60db | 5763 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 5764 | { |
1ee6dd77 | 5765 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
5766 | |
5767 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
5768 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", | |
5769 | dev->name); | |
5770 | return -EPERM; | |
5771 | } | |
5772 | ||
1da177e4 | 5773 | dev->mtu = new_mtu; |
d8892c6e | 5774 | if (netif_running(dev)) { |
e6a8fee2 | 5775 | s2io_card_down(sp); |
d8892c6e K |
5776 | netif_stop_queue(dev); |
5777 | if (s2io_card_up(sp)) { | |
5778 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
5779 | __FUNCTION__); | |
5780 | } | |
5781 | if (netif_queue_stopped(dev)) | |
5782 | netif_wake_queue(dev); | |
5783 | } else { /* Device is down */ | |
1ee6dd77 | 5784 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
d8892c6e K |
5785 | u64 val64 = new_mtu; |
5786 | ||
5787 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
5788 | } | |
1da177e4 LT |
5789 | |
5790 | return 0; | |
5791 | } | |
5792 | ||
5793 | /** | |
5794 | * s2io_tasklet - Bottom half of the ISR. | |
5795 | * @dev_adr : address of the device structure in dma_addr_t format. | |
5796 | * Description: | |
5797 | * This is the tasklet or the bottom half of the ISR. This is | |
20346722 | 5798 | * an extension of the ISR which is scheduled by the scheduler to be run |
1da177e4 | 5799 | * when the load on the CPU is low. All low priority tasks of the ISR can |
20346722 | 5800 | * be pushed into the tasklet. For now the tasklet is used only to |
1da177e4 LT |
5801 | * replenish the Rx buffers in the Rx buffer descriptors. |
5802 | * Return value: | |
5803 | * void. | |
5804 | */ | |
5805 | ||
5806 | static void s2io_tasklet(unsigned long dev_addr) | |
5807 | { | |
5808 | struct net_device *dev = (struct net_device *) dev_addr; | |
1ee6dd77 | 5809 | struct s2io_nic *sp = dev->priv; |
1da177e4 | 5810 | int i, ret; |
1ee6dd77 | 5811 | struct mac_info *mac_control; |
1da177e4 LT |
5812 | struct config_param *config; |
5813 | ||
5814 | mac_control = &sp->mac_control; | |
5815 | config = &sp->config; | |
5816 | ||
5817 | if (!TASKLET_IN_USE) { | |
5818 | for (i = 0; i < config->rx_ring_num; i++) { | |
5819 | ret = fill_rx_buffers(sp, i); | |
5820 | if (ret == -ENOMEM) { | |
5821 | DBG_PRINT(ERR_DBG, "%s: Out of ", | |
5822 | dev->name); | |
5823 | DBG_PRINT(ERR_DBG, "memory in tasklet\n"); | |
5824 | break; | |
5825 | } else if (ret == -EFILL) { | |
5826 | DBG_PRINT(ERR_DBG, | |
5827 | "%s: Rx Ring %d is full\n", | |
5828 | dev->name, i); | |
5829 | break; | |
5830 | } | |
5831 | } | |
5832 | clear_bit(0, (&sp->tasklet_status)); | |
5833 | } | |
5834 | } | |
5835 | ||
5836 | /** | |
5837 | * s2io_set_link - Set the LInk status | |
5838 | * @data: long pointer to device private structue | |
5839 | * Description: Sets the link status for the adapter | |
5840 | */ | |
5841 | ||
c4028958 | 5842 | static void s2io_set_link(struct work_struct *work) |
1da177e4 | 5843 | { |
1ee6dd77 | 5844 | struct s2io_nic *nic = container_of(work, struct s2io_nic, set_link_task); |
1da177e4 | 5845 | struct net_device *dev = nic->dev; |
1ee6dd77 | 5846 | struct XENA_dev_config __iomem *bar0 = nic->bar0; |
1da177e4 LT |
5847 | register u64 val64; |
5848 | u16 subid; | |
5849 | ||
5850 | if (test_and_set_bit(0, &(nic->link_state))) { | |
5851 | /* The card is being reset, no point doing anything */ | |
5852 | return; | |
5853 | } | |
5854 | ||
5855 | subid = nic->pdev->subsystem_device; | |
a371a07d K |
5856 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
5857 | /* | |
5858 | * Allow a small delay for the NICs self initiated | |
5859 | * cleanup to complete. | |
5860 | */ | |
5861 | msleep(100); | |
5862 | } | |
1da177e4 LT |
5863 | |
5864 | val64 = readq(&bar0->adapter_status); | |
19a60522 SS |
5865 | if (LINK_IS_UP(val64)) { |
5866 | if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) { | |
5867 | if (verify_xena_quiescence(nic)) { | |
5868 | val64 = readq(&bar0->adapter_control); | |
5869 | val64 |= ADAPTER_CNTL_EN; | |
1da177e4 | 5870 | writeq(val64, &bar0->adapter_control); |
19a60522 SS |
5871 | if (CARDS_WITH_FAULTY_LINK_INDICATORS( |
5872 | nic->device_type, subid)) { | |
5873 | val64 = readq(&bar0->gpio_control); | |
5874 | val64 |= GPIO_CTRL_GPIO_0; | |
5875 | writeq(val64, &bar0->gpio_control); | |
5876 | val64 = readq(&bar0->gpio_control); | |
5877 | } else { | |
5878 | val64 |= ADAPTER_LED_ON; | |
5879 | writeq(val64, &bar0->adapter_control); | |
a371a07d | 5880 | } |
1da177e4 | 5881 | nic->device_enabled_once = TRUE; |
19a60522 SS |
5882 | } else { |
5883 | DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name); | |
5884 | DBG_PRINT(ERR_DBG, "device is not Quiescent\n"); | |
5885 | netif_stop_queue(dev); | |
1da177e4 | 5886 | } |
19a60522 SS |
5887 | } |
5888 | val64 = readq(&bar0->adapter_status); | |
5889 | if (!LINK_IS_UP(val64)) { | |
5890 | DBG_PRINT(ERR_DBG, "%s:", dev->name); | |
5891 | DBG_PRINT(ERR_DBG, " Link down after enabling "); | |
5892 | DBG_PRINT(ERR_DBG, "device \n"); | |
5893 | } else | |
1da177e4 | 5894 | s2io_link(nic, LINK_UP); |
19a60522 SS |
5895 | } else { |
5896 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, | |
5897 | subid)) { | |
5898 | val64 = readq(&bar0->gpio_control); | |
5899 | val64 &= ~GPIO_CTRL_GPIO_0; | |
5900 | writeq(val64, &bar0->gpio_control); | |
5901 | val64 = readq(&bar0->gpio_control); | |
1da177e4 | 5902 | } |
19a60522 | 5903 | s2io_link(nic, LINK_DOWN); |
1da177e4 LT |
5904 | } |
5905 | clear_bit(0, &(nic->link_state)); | |
5906 | } | |
5907 | ||
1ee6dd77 RB |
5908 | static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, |
5909 | struct buffAdd *ba, | |
5910 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
5911 | u64 *temp2, int size) | |
5d3213cc AR |
5912 | { |
5913 | struct net_device *dev = sp->dev; | |
5914 | struct sk_buff *frag_list; | |
5915 | ||
5916 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
5917 | /* allocate skb */ | |
5918 | if (*skb) { | |
5919 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
5920 | /* | |
5921 | * As Rx frame are not going to be processed, | |
5922 | * using same mapped address for the Rxd | |
5923 | * buffer pointer | |
5924 | */ | |
1ee6dd77 | 5925 | ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0; |
5d3213cc AR |
5926 | } else { |
5927 | *skb = dev_alloc_skb(size); | |
5928 | if (!(*skb)) { | |
5929 | DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name); | |
5930 | DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n"); | |
5931 | return -ENOMEM ; | |
5932 | } | |
5933 | /* storing the mapped addr in a temp variable | |
5934 | * such it will be used for next rxd whose | |
5935 | * Host Control is NULL | |
5936 | */ | |
1ee6dd77 | 5937 | ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0 = |
5d3213cc AR |
5938 | pci_map_single( sp->pdev, (*skb)->data, |
5939 | size - NET_IP_ALIGN, | |
5940 | PCI_DMA_FROMDEVICE); | |
5941 | rxdp->Host_Control = (unsigned long) (*skb); | |
5942 | } | |
5943 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
5944 | /* Two buffer Mode */ | |
5945 | if (*skb) { | |
1ee6dd77 RB |
5946 | ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2; |
5947 | ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0; | |
5948 | ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1; | |
5d3213cc AR |
5949 | } else { |
5950 | *skb = dev_alloc_skb(size); | |
2ceaac75 DR |
5951 | if (!(*skb)) { |
5952 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n", | |
19a60522 | 5953 | dev->name); |
2ceaac75 DR |
5954 | return -ENOMEM; |
5955 | } | |
1ee6dd77 | 5956 | ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 = |
5d3213cc AR |
5957 | pci_map_single(sp->pdev, (*skb)->data, |
5958 | dev->mtu + 4, | |
5959 | PCI_DMA_FROMDEVICE); | |
1ee6dd77 | 5960 | ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 = |
5d3213cc AR |
5961 | pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, |
5962 | PCI_DMA_FROMDEVICE); | |
5963 | rxdp->Host_Control = (unsigned long) (*skb); | |
5964 | ||
5965 | /* Buffer-1 will be dummy buffer not used */ | |
1ee6dd77 | 5966 | ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 = |
5d3213cc AR |
5967 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, |
5968 | PCI_DMA_FROMDEVICE); | |
5969 | } | |
5970 | } else if ((rxdp->Host_Control == 0)) { | |
5971 | /* Three buffer mode */ | |
5972 | if (*skb) { | |
1ee6dd77 RB |
5973 | ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0; |
5974 | ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1; | |
5975 | ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2; | |
5d3213cc AR |
5976 | } else { |
5977 | *skb = dev_alloc_skb(size); | |
2ceaac75 DR |
5978 | if (!(*skb)) { |
5979 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n", | |
5980 | dev->name); | |
5981 | return -ENOMEM; | |
5982 | } | |
1ee6dd77 | 5983 | ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 = |
5d3213cc AR |
5984 | pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, |
5985 | PCI_DMA_FROMDEVICE); | |
5986 | /* Buffer-1 receives L3/L4 headers */ | |
1ee6dd77 | 5987 | ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 = |
5d3213cc AR |
5988 | pci_map_single( sp->pdev, (*skb)->data, |
5989 | l3l4hdr_size + 4, | |
5990 | PCI_DMA_FROMDEVICE); | |
5991 | /* | |
5992 | * skb_shinfo(skb)->frag_list will have L4 | |
5993 | * data payload | |
5994 | */ | |
5995 | skb_shinfo(*skb)->frag_list = dev_alloc_skb(dev->mtu + | |
5996 | ALIGN_SIZE); | |
5997 | if (skb_shinfo(*skb)->frag_list == NULL) { | |
5998 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb \ | |
5999 | failed\n ", dev->name); | |
6000 | return -ENOMEM ; | |
6001 | } | |
6002 | frag_list = skb_shinfo(*skb)->frag_list; | |
6003 | frag_list->next = NULL; | |
6004 | /* | |
6005 | * Buffer-2 receives L4 data payload | |
6006 | */ | |
1ee6dd77 | 6007 | ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 = |
5d3213cc AR |
6008 | pci_map_single( sp->pdev, frag_list->data, |
6009 | dev->mtu, PCI_DMA_FROMDEVICE); | |
6010 | } | |
6011 | } | |
6012 | return 0; | |
6013 | } | |
1ee6dd77 RB |
6014 | static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, |
6015 | int size) | |
5d3213cc AR |
6016 | { |
6017 | struct net_device *dev = sp->dev; | |
6018 | if (sp->rxd_mode == RXD_MODE_1) { | |
6019 | rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN); | |
6020 | } else if (sp->rxd_mode == RXD_MODE_3B) { | |
6021 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6022 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
6023 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); | |
6024 | } else { | |
6025 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6026 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); | |
6027 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); | |
6028 | } | |
6029 | } | |
6030 | ||
1ee6dd77 | 6031 | static int rxd_owner_bit_reset(struct s2io_nic *sp) |
5d3213cc AR |
6032 | { |
6033 | int i, j, k, blk_cnt = 0, size; | |
1ee6dd77 | 6034 | struct mac_info * mac_control = &sp->mac_control; |
5d3213cc AR |
6035 | struct config_param *config = &sp->config; |
6036 | struct net_device *dev = sp->dev; | |
1ee6dd77 | 6037 | struct RxD_t *rxdp = NULL; |
5d3213cc | 6038 | struct sk_buff *skb = NULL; |
1ee6dd77 | 6039 | struct buffAdd *ba = NULL; |
5d3213cc AR |
6040 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; |
6041 | ||
6042 | /* Calculate the size based on ring mode */ | |
6043 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6044 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6045 | if (sp->rxd_mode == RXD_MODE_1) | |
6046 | size += NET_IP_ALIGN; | |
6047 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6048 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
6049 | else | |
6050 | size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; | |
6051 | ||
6052 | for (i = 0; i < config->rx_ring_num; i++) { | |
6053 | blk_cnt = config->rx_cfg[i].num_rxd / | |
6054 | (rxd_count[sp->rxd_mode] +1); | |
6055 | ||
6056 | for (j = 0; j < blk_cnt; j++) { | |
6057 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
6058 | rxdp = mac_control->rings[i]. | |
6059 | rx_blocks[j].rxds[k].virt_addr; | |
6060 | if(sp->rxd_mode >= RXD_MODE_3A) | |
6061 | ba = &mac_control->rings[i].ba[j][k]; | |
6062 | set_rxd_buffer_pointer(sp, rxdp, ba, | |
6063 | &skb,(u64 *)&temp0_64, | |
6064 | (u64 *)&temp1_64, | |
6065 | (u64 *)&temp2_64, size); | |
6066 | ||
6067 | set_rxd_buffer_size(sp, rxdp, size); | |
6068 | wmb(); | |
6069 | /* flip the Ownership bit to Hardware */ | |
6070 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6071 | } | |
6072 | } | |
6073 | } | |
6074 | return 0; | |
6075 | ||
6076 | } | |
6077 | ||
1ee6dd77 | 6078 | static int s2io_add_isr(struct s2io_nic * sp) |
1da177e4 | 6079 | { |
e6a8fee2 | 6080 | int ret = 0; |
c92ca04b | 6081 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6082 | int err = 0; |
1da177e4 | 6083 | |
e6a8fee2 AR |
6084 | if (sp->intr_type == MSI) |
6085 | ret = s2io_enable_msi(sp); | |
6086 | else if (sp->intr_type == MSI_X) | |
6087 | ret = s2io_enable_msi_x(sp); | |
6088 | if (ret) { | |
6089 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
6090 | sp->intr_type = INTA; | |
20346722 | 6091 | } |
1da177e4 | 6092 | |
1ee6dd77 | 6093 | /* Store the values of the MSIX table in the struct s2io_nic structure */ |
e6a8fee2 | 6094 | store_xmsi_data(sp); |
c92ca04b | 6095 | |
e6a8fee2 AR |
6096 | /* After proper initialization of H/W, register ISR */ |
6097 | if (sp->intr_type == MSI) { | |
6098 | err = request_irq((int) sp->pdev->irq, s2io_msi_handle, | |
6099 | IRQF_SHARED, sp->name, dev); | |
6100 | if (err) { | |
6101 | pci_disable_msi(sp->pdev); | |
6102 | DBG_PRINT(ERR_DBG, "%s: MSI registration failed\n", | |
6103 | dev->name); | |
6104 | return -1; | |
6105 | } | |
6106 | } | |
6107 | if (sp->intr_type == MSI_X) { | |
6108 | int i; | |
c92ca04b | 6109 | |
e6a8fee2 AR |
6110 | for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) { |
6111 | if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) { | |
6112 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", | |
6113 | dev->name, i); | |
6114 | err = request_irq(sp->entries[i].vector, | |
6115 | s2io_msix_fifo_handle, 0, sp->desc[i], | |
6116 | sp->s2io_entries[i].arg); | |
6117 | DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc[i], | |
6118 | (unsigned long long)sp->msix_info[i].addr); | |
6119 | } else { | |
6120 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", | |
6121 | dev->name, i); | |
6122 | err = request_irq(sp->entries[i].vector, | |
6123 | s2io_msix_ring_handle, 0, sp->desc[i], | |
6124 | sp->s2io_entries[i].arg); | |
6125 | DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc[i], | |
6126 | (unsigned long long)sp->msix_info[i].addr); | |
c92ca04b | 6127 | } |
e6a8fee2 AR |
6128 | if (err) { |
6129 | DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration " | |
6130 | "failed\n", dev->name, i); | |
6131 | DBG_PRINT(ERR_DBG, "Returned: %d\n", err); | |
6132 | return -1; | |
6133 | } | |
6134 | sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS; | |
6135 | } | |
6136 | } | |
6137 | if (sp->intr_type == INTA) { | |
6138 | err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED, | |
6139 | sp->name, dev); | |
6140 | if (err) { | |
6141 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
6142 | dev->name); | |
6143 | return -1; | |
6144 | } | |
6145 | } | |
6146 | return 0; | |
6147 | } | |
1ee6dd77 | 6148 | static void s2io_rem_isr(struct s2io_nic * sp) |
e6a8fee2 AR |
6149 | { |
6150 | int cnt = 0; | |
6151 | struct net_device *dev = sp->dev; | |
6152 | ||
6153 | if (sp->intr_type == MSI_X) { | |
6154 | int i; | |
6155 | u16 msi_control; | |
6156 | ||
6157 | for (i=1; (sp->s2io_entries[i].in_use == | |
6158 | MSIX_REGISTERED_SUCCESS); i++) { | |
6159 | int vector = sp->entries[i].vector; | |
6160 | void *arg = sp->s2io_entries[i].arg; | |
6161 | ||
6162 | free_irq(vector, arg); | |
6163 | } | |
6164 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
6165 | msi_control &= 0xFFFE; /* Disable MSI */ | |
6166 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
6167 | ||
6168 | pci_disable_msix(sp->pdev); | |
6169 | } else { | |
6170 | free_irq(sp->pdev->irq, dev); | |
6171 | if (sp->intr_type == MSI) { | |
6172 | u16 val; | |
6173 | ||
6174 | pci_disable_msi(sp->pdev); | |
6175 | pci_read_config_word(sp->pdev, 0x4c, &val); | |
6176 | val ^= 0x1; | |
6177 | pci_write_config_word(sp->pdev, 0x4c, val); | |
c92ca04b AR |
6178 | } |
6179 | } | |
6180 | /* Waiting till all Interrupt handlers are complete */ | |
6181 | cnt = 0; | |
6182 | do { | |
6183 | msleep(10); | |
6184 | if (!atomic_read(&sp->isr_cnt)) | |
6185 | break; | |
6186 | cnt++; | |
6187 | } while(cnt < 5); | |
e6a8fee2 AR |
6188 | } |
6189 | ||
1ee6dd77 | 6190 | static void s2io_card_down(struct s2io_nic * sp) |
e6a8fee2 AR |
6191 | { |
6192 | int cnt = 0; | |
1ee6dd77 | 6193 | struct XENA_dev_config __iomem *bar0 = sp->bar0; |
e6a8fee2 AR |
6194 | unsigned long flags; |
6195 | register u64 val64 = 0; | |
6196 | ||
6197 | del_timer_sync(&sp->alarm_timer); | |
6198 | /* If s2io_set_link task is executing, wait till it completes. */ | |
6199 | while (test_and_set_bit(0, &(sp->link_state))) { | |
6200 | msleep(50); | |
6201 | } | |
6202 | atomic_set(&sp->card_state, CARD_DOWN); | |
6203 | ||
6204 | /* disable Tx and Rx traffic on the NIC */ | |
6205 | stop_nic(sp); | |
6206 | ||
6207 | s2io_rem_isr(sp); | |
1da177e4 LT |
6208 | |
6209 | /* Kill tasklet. */ | |
6210 | tasklet_kill(&sp->task); | |
6211 | ||
6212 | /* Check if the device is Quiescent and then Reset the NIC */ | |
6213 | do { | |
5d3213cc AR |
6214 | /* As per the HW requirement we need to replenish the |
6215 | * receive buffer to avoid the ring bump. Since there is | |
6216 | * no intention of processing the Rx frame at this pointwe are | |
6217 | * just settting the ownership bit of rxd in Each Rx | |
6218 | * ring to HW and set the appropriate buffer size | |
6219 | * based on the ring mode | |
6220 | */ | |
6221 | rxd_owner_bit_reset(sp); | |
6222 | ||
1da177e4 | 6223 | val64 = readq(&bar0->adapter_status); |
19a60522 SS |
6224 | if (verify_xena_quiescence(sp)) { |
6225 | if(verify_pcc_quiescent(sp, sp->device_enabled_once)) | |
1da177e4 LT |
6226 | break; |
6227 | } | |
6228 | ||
6229 | msleep(50); | |
6230 | cnt++; | |
6231 | if (cnt == 10) { | |
6232 | DBG_PRINT(ERR_DBG, | |
6233 | "s2io_close:Device not Quiescent "); | |
6234 | DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n", | |
6235 | (unsigned long long) val64); | |
6236 | break; | |
6237 | } | |
6238 | } while (1); | |
1da177e4 LT |
6239 | s2io_reset(sp); |
6240 | ||
7ba013ac K |
6241 | spin_lock_irqsave(&sp->tx_lock, flags); |
6242 | /* Free all Tx buffers */ | |
1da177e4 | 6243 | free_tx_buffers(sp); |
7ba013ac K |
6244 | spin_unlock_irqrestore(&sp->tx_lock, flags); |
6245 | ||
6246 | /* Free all Rx buffers */ | |
6247 | spin_lock_irqsave(&sp->rx_lock, flags); | |
1da177e4 | 6248 | free_rx_buffers(sp); |
7ba013ac | 6249 | spin_unlock_irqrestore(&sp->rx_lock, flags); |
1da177e4 | 6250 | |
1da177e4 LT |
6251 | clear_bit(0, &(sp->link_state)); |
6252 | } | |
6253 | ||
1ee6dd77 | 6254 | static int s2io_card_up(struct s2io_nic * sp) |
1da177e4 | 6255 | { |
cc6e7c44 | 6256 | int i, ret = 0; |
1ee6dd77 | 6257 | struct mac_info *mac_control; |
1da177e4 LT |
6258 | struct config_param *config; |
6259 | struct net_device *dev = (struct net_device *) sp->dev; | |
e6a8fee2 | 6260 | u16 interruptible; |
1da177e4 LT |
6261 | |
6262 | /* Initialize the H/W I/O registers */ | |
6263 | if (init_nic(sp) != 0) { | |
6264 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", | |
6265 | dev->name); | |
e6a8fee2 | 6266 | s2io_reset(sp); |
1da177e4 LT |
6267 | return -ENODEV; |
6268 | } | |
6269 | ||
20346722 K |
6270 | /* |
6271 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
6272 | * Rx ring and initializing buffers into 30 Rx blocks |
6273 | */ | |
6274 | mac_control = &sp->mac_control; | |
6275 | config = &sp->config; | |
6276 | ||
6277 | for (i = 0; i < config->rx_ring_num; i++) { | |
6278 | if ((ret = fill_rx_buffers(sp, i))) { | |
6279 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", | |
6280 | dev->name); | |
6281 | s2io_reset(sp); | |
6282 | free_rx_buffers(sp); | |
6283 | return -ENOMEM; | |
6284 | } | |
6285 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
6286 | atomic_read(&sp->rx_bufs_left[i])); | |
6287 | } | |
19a60522 SS |
6288 | /* Maintain the state prior to the open */ |
6289 | if (sp->promisc_flg) | |
6290 | sp->promisc_flg = 0; | |
6291 | if (sp->m_cast_flg) { | |
6292 | sp->m_cast_flg = 0; | |
6293 | sp->all_multi_pos= 0; | |
6294 | } | |
1da177e4 LT |
6295 | |
6296 | /* Setting its receive mode */ | |
6297 | s2io_set_multicast(dev); | |
6298 | ||
7d3d0439 | 6299 | if (sp->lro) { |
b41477f3 | 6300 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 RA |
6301 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
6302 | /* Check if we can use(if specified) user provided value */ | |
6303 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) | |
6304 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
6305 | } | |
6306 | ||
1da177e4 LT |
6307 | /* Enable Rx Traffic and interrupts on the NIC */ |
6308 | if (start_nic(sp)) { | |
6309 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 6310 | s2io_reset(sp); |
e6a8fee2 AR |
6311 | free_rx_buffers(sp); |
6312 | return -ENODEV; | |
6313 | } | |
6314 | ||
6315 | /* Add interrupt service routine */ | |
6316 | if (s2io_add_isr(sp) != 0) { | |
6317 | if (sp->intr_type == MSI_X) | |
6318 | s2io_rem_isr(sp); | |
6319 | s2io_reset(sp); | |
1da177e4 LT |
6320 | free_rx_buffers(sp); |
6321 | return -ENODEV; | |
6322 | } | |
6323 | ||
25fff88e K |
6324 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
6325 | ||
e6a8fee2 AR |
6326 | /* Enable tasklet for the device */ |
6327 | tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev); | |
6328 | ||
6329 | /* Enable select interrupts */ | |
6330 | if (sp->intr_type != INTA) | |
6331 | en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS); | |
6332 | else { | |
6333 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; | |
6334 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; | |
6335 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
6336 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
6337 | } | |
6338 | ||
6339 | ||
1da177e4 LT |
6340 | atomic_set(&sp->card_state, CARD_UP); |
6341 | return 0; | |
6342 | } | |
6343 | ||
20346722 | 6344 | /** |
1da177e4 LT |
6345 | * s2io_restart_nic - Resets the NIC. |
6346 | * @data : long pointer to the device private structure | |
6347 | * Description: | |
6348 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 6349 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
6350 | * the run time of the watch dog routine which is run holding a |
6351 | * spin lock. | |
6352 | */ | |
6353 | ||
c4028958 | 6354 | static void s2io_restart_nic(struct work_struct *work) |
1da177e4 | 6355 | { |
1ee6dd77 | 6356 | struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task); |
c4028958 | 6357 | struct net_device *dev = sp->dev; |
1da177e4 | 6358 | |
e6a8fee2 | 6359 | s2io_card_down(sp); |
1da177e4 LT |
6360 | if (s2io_card_up(sp)) { |
6361 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6362 | dev->name); | |
6363 | } | |
6364 | netif_wake_queue(dev); | |
6365 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", | |
6366 | dev->name); | |
20346722 | 6367 | |
1da177e4 LT |
6368 | } |
6369 | ||
20346722 K |
6370 | /** |
6371 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
6372 | * @dev : Pointer to net device structure |
6373 | * Description: | |
6374 | * This function is triggered if the Tx Queue is stopped | |
6375 | * for a pre-defined amount of time when the Interface is still up. | |
6376 | * If the Interface is jammed in such a situation, the hardware is | |
6377 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
6378 | * overcome any problem that might have been caused in the hardware. | |
6379 | * Return value: | |
6380 | * void | |
6381 | */ | |
6382 | ||
6383 | static void s2io_tx_watchdog(struct net_device *dev) | |
6384 | { | |
1ee6dd77 | 6385 | struct s2io_nic *sp = dev->priv; |
1da177e4 LT |
6386 | |
6387 | if (netif_carrier_ok(dev)) { | |
6388 | schedule_work(&sp->rst_timer_task); | |
bd1034f0 | 6389 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
6390 | } |
6391 | } | |
6392 | ||
6393 | /** | |
6394 | * rx_osm_handler - To perform some OS related operations on SKB. | |
6395 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
6396 | * @skb : the socket buffer pointer. | |
6397 | * @len : length of the packet | |
6398 | * @cksum : FCS checksum of the frame. | |
6399 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 6400 | * Description: |
b41477f3 | 6401 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
6402 | * some OS related operations on the SKB before passing it to the upper |
6403 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
6404 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
6405 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
6406 | * packet error count, frees the SKB and returns error. | |
6407 | * Return value: | |
6408 | * SUCCESS on success and -1 on failure. | |
6409 | */ | |
1ee6dd77 | 6410 | static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) |
1da177e4 | 6411 | { |
1ee6dd77 | 6412 | struct s2io_nic *sp = ring_data->nic; |
1da177e4 | 6413 | struct net_device *dev = (struct net_device *) sp->dev; |
20346722 K |
6414 | struct sk_buff *skb = (struct sk_buff *) |
6415 | ((unsigned long) rxdp->Host_Control); | |
6416 | int ring_no = ring_data->ring_no; | |
1da177e4 | 6417 | u16 l3_csum, l4_csum; |
863c11a9 | 6418 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
1ee6dd77 | 6419 | struct lro *lro; |
da6971d8 | 6420 | |
20346722 | 6421 | skb->dev = dev; |
c92ca04b | 6422 | |
863c11a9 | 6423 | if (err) { |
bd1034f0 AR |
6424 | /* Check for parity error */ |
6425 | if (err & 0x1) { | |
6426 | sp->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
6427 | } | |
6428 | ||
863c11a9 AR |
6429 | /* |
6430 | * Drop the packet if bad transfer code. Exception being | |
6431 | * 0x5, which could be due to unsupported IPv6 extension header. | |
6432 | * In this case, we let stack handle the packet. | |
6433 | * Note that in this case, since checksum will be incorrect, | |
6434 | * stack will validate the same. | |
6435 | */ | |
6436 | if (err && ((err >> 48) != 0x5)) { | |
6437 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%llx\n", | |
6438 | dev->name, err); | |
6439 | sp->stats.rx_crc_errors++; | |
6440 | dev_kfree_skb(skb); | |
6441 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
6442 | rxdp->Host_Control = 0; | |
6443 | return 0; | |
6444 | } | |
20346722 | 6445 | } |
1da177e4 | 6446 | |
20346722 K |
6447 | /* Updating statistics */ |
6448 | rxdp->Host_Control = 0; | |
6449 | sp->rx_pkt_count++; | |
6450 | sp->stats.rx_packets++; | |
da6971d8 AR |
6451 | if (sp->rxd_mode == RXD_MODE_1) { |
6452 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 6453 | |
da6971d8 AR |
6454 | sp->stats.rx_bytes += len; |
6455 | skb_put(skb, len); | |
6456 | ||
6457 | } else if (sp->rxd_mode >= RXD_MODE_3A) { | |
6458 | int get_block = ring_data->rx_curr_get_info.block_index; | |
6459 | int get_off = ring_data->rx_curr_get_info.offset; | |
6460 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
6461 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
6462 | unsigned char *buff = skb_push(skb, buf0_len); | |
6463 | ||
1ee6dd77 | 6464 | struct buffAdd *ba = &ring_data->ba[get_block][get_off]; |
da6971d8 AR |
6465 | sp->stats.rx_bytes += buf0_len + buf2_len; |
6466 | memcpy(buff, ba->ba_0, buf0_len); | |
6467 | ||
6468 | if (sp->rxd_mode == RXD_MODE_3A) { | |
6469 | int buf1_len = RXD_GET_BUFFER1_SIZE_3(rxdp->Control_2); | |
6470 | ||
6471 | skb_put(skb, buf1_len); | |
6472 | skb->len += buf2_len; | |
6473 | skb->data_len += buf2_len; | |
da6971d8 AR |
6474 | skb_put(skb_shinfo(skb)->frag_list, buf2_len); |
6475 | sp->stats.rx_bytes += buf1_len; | |
6476 | ||
6477 | } else | |
6478 | skb_put(skb, buf2_len); | |
6479 | } | |
20346722 | 6480 | |
7d3d0439 RA |
6481 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || |
6482 | (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
20346722 K |
6483 | (sp->rx_csum)) { |
6484 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); | |
1da177e4 LT |
6485 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
6486 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 6487 | /* |
1da177e4 LT |
6488 | * NIC verifies if the Checksum of the received |
6489 | * frame is Ok or not and accordingly returns | |
6490 | * a flag in the RxD. | |
6491 | */ | |
6492 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
7d3d0439 RA |
6493 | if (sp->lro) { |
6494 | u32 tcp_len; | |
6495 | u8 *tcp; | |
6496 | int ret = 0; | |
6497 | ||
6498 | ret = s2io_club_tcp_session(skb->data, &tcp, | |
6499 | &tcp_len, &lro, rxdp, sp); | |
6500 | switch (ret) { | |
6501 | case 3: /* Begin anew */ | |
6502 | lro->parent = skb; | |
6503 | goto aggregate; | |
6504 | case 1: /* Aggregate */ | |
6505 | { | |
6506 | lro_append_pkt(sp, lro, | |
6507 | skb, tcp_len); | |
6508 | goto aggregate; | |
6509 | } | |
6510 | case 4: /* Flush session */ | |
6511 | { | |
6512 | lro_append_pkt(sp, lro, | |
6513 | skb, tcp_len); | |
6514 | queue_rx_frame(lro->parent); | |
6515 | clear_lro_session(lro); | |
6516 | sp->mac_control.stats_info-> | |
6517 | sw_stat.flush_max_pkts++; | |
6518 | goto aggregate; | |
6519 | } | |
6520 | case 2: /* Flush both */ | |
6521 | lro->parent->data_len = | |
6522 | lro->frags_len; | |
6523 | sp->mac_control.stats_info-> | |
6524 | sw_stat.sending_both++; | |
6525 | queue_rx_frame(lro->parent); | |
6526 | clear_lro_session(lro); | |
6527 | goto send_up; | |
6528 | case 0: /* sessions exceeded */ | |
c92ca04b AR |
6529 | case -1: /* non-TCP or not |
6530 | * L2 aggregatable | |
6531 | */ | |
7d3d0439 RA |
6532 | case 5: /* |
6533 | * First pkt in session not | |
6534 | * L3/L4 aggregatable | |
6535 | */ | |
6536 | break; | |
6537 | default: | |
6538 | DBG_PRINT(ERR_DBG, | |
6539 | "%s: Samadhana!!\n", | |
6540 | __FUNCTION__); | |
6541 | BUG(); | |
6542 | } | |
6543 | } | |
1da177e4 | 6544 | } else { |
20346722 K |
6545 | /* |
6546 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
6547 | * upper layers deal with it. |
6548 | */ | |
6549 | skb->ip_summed = CHECKSUM_NONE; | |
6550 | } | |
6551 | } else { | |
6552 | skb->ip_summed = CHECKSUM_NONE; | |
6553 | } | |
6554 | ||
7d3d0439 RA |
6555 | if (!sp->lro) { |
6556 | skb->protocol = eth_type_trans(skb, dev); | |
7d3d0439 RA |
6557 | if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) { |
6558 | /* Queueing the vlan frame to the upper layer */ | |
db874e65 SS |
6559 | if (napi) |
6560 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, | |
6561 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
6562 | else | |
6563 | vlan_hwaccel_rx(skb, sp->vlgrp, | |
6564 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
7d3d0439 | 6565 | } else { |
db874e65 SS |
6566 | if (napi) |
6567 | netif_receive_skb(skb); | |
6568 | else | |
6569 | netif_rx(skb); | |
7d3d0439 | 6570 | } |
7d3d0439 RA |
6571 | } else { |
6572 | send_up: | |
6573 | queue_rx_frame(skb); | |
6aa20a22 | 6574 | } |
1da177e4 | 6575 | dev->last_rx = jiffies; |
7d3d0439 | 6576 | aggregate: |
1da177e4 | 6577 | atomic_dec(&sp->rx_bufs_left[ring_no]); |
1da177e4 LT |
6578 | return SUCCESS; |
6579 | } | |
6580 | ||
6581 | /** | |
6582 | * s2io_link - stops/starts the Tx queue. | |
6583 | * @sp : private member of the device structure, which is a pointer to the | |
6584 | * s2io_nic structure. | |
6585 | * @link : inidicates whether link is UP/DOWN. | |
6586 | * Description: | |
6587 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 K |
6588 | * status of the NIC is is down or up. This is called by the Alarm |
6589 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
6590 | * Return value: |
6591 | * void. | |
6592 | */ | |
6593 | ||
1ee6dd77 | 6594 | static void s2io_link(struct s2io_nic * sp, int link) |
1da177e4 LT |
6595 | { |
6596 | struct net_device *dev = (struct net_device *) sp->dev; | |
6597 | ||
6598 | if (link != sp->last_link_state) { | |
6599 | if (link == LINK_DOWN) { | |
6600 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
6601 | netif_carrier_off(dev); | |
6602 | } else { | |
6603 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
6604 | netif_carrier_on(dev); | |
6605 | } | |
6606 | } | |
6607 | sp->last_link_state = link; | |
6608 | } | |
6609 | ||
6610 | /** | |
20346722 K |
6611 | * get_xena_rev_id - to identify revision ID of xena. |
6612 | * @pdev : PCI Dev structure | |
6613 | * Description: | |
6614 | * Function to identify the Revision ID of xena. | |
6615 | * Return value: | |
6616 | * returns the revision ID of the device. | |
6617 | */ | |
6618 | ||
26df54bf | 6619 | static int get_xena_rev_id(struct pci_dev *pdev) |
20346722 K |
6620 | { |
6621 | u8 id = 0; | |
6622 | int ret; | |
6623 | ret = pci_read_config_byte(pdev, PCI_REVISION_ID, (u8 *) & id); | |
6624 | return id; | |
6625 | } | |
6626 | ||
6627 | /** | |
6628 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
6629 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
6630 | * s2io_nic structure. |
6631 | * Description: | |
6632 | * This function initializes a few of the PCI and PCI-X configuration registers | |
6633 | * with recommended values. | |
6634 | * Return value: | |
6635 | * void | |
6636 | */ | |
6637 | ||
1ee6dd77 | 6638 | static void s2io_init_pci(struct s2io_nic * sp) |
1da177e4 | 6639 | { |
20346722 | 6640 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
6641 | |
6642 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
6643 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 6644 | &(pcix_cmd)); |
1da177e4 | 6645 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6646 | (pcix_cmd | 1)); |
1da177e4 | 6647 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6648 | &(pcix_cmd)); |
1da177e4 LT |
6649 | |
6650 | /* Set the PErr Response bit in PCI command register. */ | |
6651 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
6652 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
6653 | (pci_cmd | PCI_COMMAND_PARITY)); | |
6654 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
6655 | } |
6656 | ||
9dc737a7 AR |
6657 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) |
6658 | { | |
6659 | if ( tx_fifo_num > 8) { | |
6660 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not " | |
6661 | "supported\n"); | |
6662 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n"); | |
6663 | tx_fifo_num = 8; | |
6664 | } | |
6665 | if ( rx_ring_num > 8) { | |
6666 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not " | |
6667 | "supported\n"); | |
6668 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n"); | |
6669 | rx_ring_num = 8; | |
6670 | } | |
db874e65 SS |
6671 | if (*dev_intr_type != INTA) |
6672 | napi = 0; | |
6673 | ||
9dc737a7 AR |
6674 | #ifndef CONFIG_PCI_MSI |
6675 | if (*dev_intr_type != INTA) { | |
6676 | DBG_PRINT(ERR_DBG, "s2io: This kernel does not support" | |
6677 | "MSI/MSI-X. Defaulting to INTA\n"); | |
6678 | *dev_intr_type = INTA; | |
6679 | } | |
6680 | #else | |
6681 | if (*dev_intr_type > MSI_X) { | |
6682 | DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " | |
6683 | "Defaulting to INTA\n"); | |
6684 | *dev_intr_type = INTA; | |
6685 | } | |
6686 | #endif | |
6687 | if ((*dev_intr_type == MSI_X) && | |
6688 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && | |
6689 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
6aa20a22 | 6690 | DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. " |
9dc737a7 AR |
6691 | "Defaulting to INTA\n"); |
6692 | *dev_intr_type = INTA; | |
6693 | } | |
372cc597 SS |
6694 | if ( (rx_ring_num > 1) && (*dev_intr_type != INTA) ) |
6695 | napi = 0; | |
9dc737a7 AR |
6696 | if (rx_ring_mode > 3) { |
6697 | DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); | |
6698 | DBG_PRINT(ERR_DBG, "s2io: Defaulting to 3-buffer mode\n"); | |
6699 | rx_ring_mode = 3; | |
6700 | } | |
6701 | return SUCCESS; | |
6702 | } | |
6703 | ||
1da177e4 | 6704 | /** |
20346722 | 6705 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
6706 | * @pdev : structure containing the PCI related information of the device. |
6707 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
6708 | * Description: | |
6709 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 K |
6710 | * All OS related initialization including memory and device structure and |
6711 | * initlaization of the device private variable is done. Also the swapper | |
6712 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
6713 | * registers of the device. |
6714 | * Return value: | |
6715 | * returns 0 on success and negative on failure. | |
6716 | */ | |
6717 | ||
6718 | static int __devinit | |
6719 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
6720 | { | |
1ee6dd77 | 6721 | struct s2io_nic *sp; |
1da177e4 | 6722 | struct net_device *dev; |
1da177e4 LT |
6723 | int i, j, ret; |
6724 | int dma_flag = FALSE; | |
6725 | u32 mac_up, mac_down; | |
6726 | u64 val64 = 0, tmp64 = 0; | |
1ee6dd77 | 6727 | struct XENA_dev_config __iomem *bar0 = NULL; |
1da177e4 | 6728 | u16 subid; |
1ee6dd77 | 6729 | struct mac_info *mac_control; |
1da177e4 | 6730 | struct config_param *config; |
541ae68f | 6731 | int mode; |
cc6e7c44 | 6732 | u8 dev_intr_type = intr_type; |
1da177e4 | 6733 | |
9dc737a7 AR |
6734 | if ((ret = s2io_verify_parm(pdev, &dev_intr_type))) |
6735 | return ret; | |
1da177e4 LT |
6736 | |
6737 | if ((ret = pci_enable_device(pdev))) { | |
6738 | DBG_PRINT(ERR_DBG, | |
6739 | "s2io_init_nic: pci_enable_device failed\n"); | |
6740 | return ret; | |
6741 | } | |
6742 | ||
1e7f0bd8 | 6743 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
6744 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n"); |
6745 | dma_flag = TRUE; | |
1da177e4 | 6746 | if (pci_set_consistent_dma_mask |
1e7f0bd8 | 6747 | (pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
6748 | DBG_PRINT(ERR_DBG, |
6749 | "Unable to obtain 64bit DMA for \ | |
6750 | consistent allocations\n"); | |
6751 | pci_disable_device(pdev); | |
6752 | return -ENOMEM; | |
6753 | } | |
1e7f0bd8 | 6754 | } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
1da177e4 LT |
6755 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n"); |
6756 | } else { | |
6757 | pci_disable_device(pdev); | |
6758 | return -ENOMEM; | |
6759 | } | |
cc6e7c44 RA |
6760 | if (dev_intr_type != MSI_X) { |
6761 | if (pci_request_regions(pdev, s2io_driver_name)) { | |
b41477f3 AR |
6762 | DBG_PRINT(ERR_DBG, "Request Regions failed\n"); |
6763 | pci_disable_device(pdev); | |
cc6e7c44 RA |
6764 | return -ENODEV; |
6765 | } | |
6766 | } | |
6767 | else { | |
6768 | if (!(request_mem_region(pci_resource_start(pdev, 0), | |
6769 | pci_resource_len(pdev, 0), s2io_driver_name))) { | |
6770 | DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n"); | |
6771 | pci_disable_device(pdev); | |
6772 | return -ENODEV; | |
6773 | } | |
6774 | if (!(request_mem_region(pci_resource_start(pdev, 2), | |
6775 | pci_resource_len(pdev, 2), s2io_driver_name))) { | |
6776 | DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n"); | |
6777 | release_mem_region(pci_resource_start(pdev, 0), | |
6778 | pci_resource_len(pdev, 0)); | |
6779 | pci_disable_device(pdev); | |
6780 | return -ENODEV; | |
6781 | } | |
1da177e4 LT |
6782 | } |
6783 | ||
1ee6dd77 | 6784 | dev = alloc_etherdev(sizeof(struct s2io_nic)); |
1da177e4 LT |
6785 | if (dev == NULL) { |
6786 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
6787 | pci_disable_device(pdev); | |
6788 | pci_release_regions(pdev); | |
6789 | return -ENODEV; | |
6790 | } | |
6791 | ||
6792 | pci_set_master(pdev); | |
6793 | pci_set_drvdata(pdev, dev); | |
6794 | SET_MODULE_OWNER(dev); | |
6795 | SET_NETDEV_DEV(dev, &pdev->dev); | |
6796 | ||
6797 | /* Private member variable initialized to s2io NIC structure */ | |
6798 | sp = dev->priv; | |
1ee6dd77 | 6799 | memset(sp, 0, sizeof(struct s2io_nic)); |
1da177e4 LT |
6800 | sp->dev = dev; |
6801 | sp->pdev = pdev; | |
1da177e4 | 6802 | sp->high_dma_flag = dma_flag; |
1da177e4 | 6803 | sp->device_enabled_once = FALSE; |
da6971d8 AR |
6804 | if (rx_ring_mode == 1) |
6805 | sp->rxd_mode = RXD_MODE_1; | |
6806 | if (rx_ring_mode == 2) | |
6807 | sp->rxd_mode = RXD_MODE_3B; | |
6808 | if (rx_ring_mode == 3) | |
6809 | sp->rxd_mode = RXD_MODE_3A; | |
6810 | ||
cc6e7c44 | 6811 | sp->intr_type = dev_intr_type; |
1da177e4 | 6812 | |
541ae68f K |
6813 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
6814 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) | |
6815 | sp->device_type = XFRAME_II_DEVICE; | |
6816 | else | |
6817 | sp->device_type = XFRAME_I_DEVICE; | |
6818 | ||
7d3d0439 | 6819 | sp->lro = lro; |
6aa20a22 | 6820 | |
1da177e4 LT |
6821 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
6822 | s2io_init_pci(sp); | |
6823 | ||
20346722 | 6824 | /* |
1da177e4 | 6825 | * Setting the device configuration parameters. |
20346722 K |
6826 | * Most of these parameters can be specified by the user during |
6827 | * module insertion as they are module loadable parameters. If | |
6828 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
6829 | * are initialized with default values. |
6830 | */ | |
6831 | mac_control = &sp->mac_control; | |
6832 | config = &sp->config; | |
6833 | ||
6834 | /* Tx side parameters. */ | |
1da177e4 LT |
6835 | config->tx_fifo_num = tx_fifo_num; |
6836 | for (i = 0; i < MAX_TX_FIFOS; i++) { | |
6837 | config->tx_cfg[i].fifo_len = tx_fifo_len[i]; | |
6838 | config->tx_cfg[i].fifo_priority = i; | |
6839 | } | |
6840 | ||
20346722 K |
6841 | /* mapping the QoS priority to the configured fifos */ |
6842 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
6843 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i]; | |
6844 | ||
1da177e4 LT |
6845 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
6846 | for (i = 0; i < config->tx_fifo_num; i++) { | |
6847 | config->tx_cfg[i].f_no_snoop = | |
6848 | (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
6849 | if (config->tx_cfg[i].fifo_len < 65) { | |
6850 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; | |
6851 | break; | |
6852 | } | |
6853 | } | |
fed5eccd AR |
6854 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
6855 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
6856 | |
6857 | /* Rx side parameters. */ | |
1da177e4 LT |
6858 | config->rx_ring_num = rx_ring_num; |
6859 | for (i = 0; i < MAX_RX_RINGS; i++) { | |
6860 | config->rx_cfg[i].num_rxd = rx_ring_sz[i] * | |
da6971d8 | 6861 | (rxd_count[sp->rxd_mode] + 1); |
1da177e4 LT |
6862 | config->rx_cfg[i].ring_priority = i; |
6863 | } | |
6864 | ||
6865 | for (i = 0; i < rx_ring_num; i++) { | |
6866 | config->rx_cfg[i].ring_org = RING_ORG_BUFF1; | |
6867 | config->rx_cfg[i].f_no_snoop = | |
6868 | (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
6869 | } | |
6870 | ||
6871 | /* Setting Mac Control parameters */ | |
6872 | mac_control->rmac_pause_time = rmac_pause_time; | |
6873 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
6874 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
6875 | ||
6876 | ||
6877 | /* Initialize Ring buffer parameters. */ | |
6878 | for (i = 0; i < config->rx_ring_num; i++) | |
6879 | atomic_set(&sp->rx_bufs_left[i], 0); | |
6880 | ||
7ba013ac K |
6881 | /* Initialize the number of ISRs currently running */ |
6882 | atomic_set(&sp->isr_cnt, 0); | |
6883 | ||
1da177e4 LT |
6884 | /* initialize the shared memory used by the NIC and the host */ |
6885 | if (init_shared_mem(sp)) { | |
6886 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", | |
b41477f3 | 6887 | dev->name); |
1da177e4 LT |
6888 | ret = -ENOMEM; |
6889 | goto mem_alloc_failed; | |
6890 | } | |
6891 | ||
6892 | sp->bar0 = ioremap(pci_resource_start(pdev, 0), | |
6893 | pci_resource_len(pdev, 0)); | |
6894 | if (!sp->bar0) { | |
19a60522 | 6895 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n", |
1da177e4 LT |
6896 | dev->name); |
6897 | ret = -ENOMEM; | |
6898 | goto bar0_remap_failed; | |
6899 | } | |
6900 | ||
6901 | sp->bar1 = ioremap(pci_resource_start(pdev, 2), | |
6902 | pci_resource_len(pdev, 2)); | |
6903 | if (!sp->bar1) { | |
19a60522 | 6904 | DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n", |
1da177e4 LT |
6905 | dev->name); |
6906 | ret = -ENOMEM; | |
6907 | goto bar1_remap_failed; | |
6908 | } | |
6909 | ||
6910 | dev->irq = pdev->irq; | |
6911 | dev->base_addr = (unsigned long) sp->bar0; | |
6912 | ||
6913 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
6914 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
1ee6dd77 | 6915 | mac_control->tx_FIFO_start[j] = (struct TxFIFO_element __iomem *) |
1da177e4 LT |
6916 | (sp->bar1 + (j * 0x00020000)); |
6917 | } | |
6918 | ||
6919 | /* Driver entry points */ | |
6920 | dev->open = &s2io_open; | |
6921 | dev->stop = &s2io_close; | |
6922 | dev->hard_start_xmit = &s2io_xmit; | |
6923 | dev->get_stats = &s2io_get_stats; | |
6924 | dev->set_multicast_list = &s2io_set_multicast; | |
6925 | dev->do_ioctl = &s2io_ioctl; | |
6926 | dev->change_mtu = &s2io_change_mtu; | |
6927 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
be3a6b02 K |
6928 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
6929 | dev->vlan_rx_register = s2io_vlan_rx_register; | |
6930 | dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid; | |
20346722 | 6931 | |
1da177e4 LT |
6932 | /* |
6933 | * will use eth_mac_addr() for dev->set_mac_address | |
6934 | * mac address will be set every time dev->open() is called | |
6935 | */ | |
1da177e4 | 6936 | dev->poll = s2io_poll; |
20346722 | 6937 | dev->weight = 32; |
1da177e4 | 6938 | |
612eff0e BH |
6939 | #ifdef CONFIG_NET_POLL_CONTROLLER |
6940 | dev->poll_controller = s2io_netpoll; | |
6941 | #endif | |
6942 | ||
1da177e4 LT |
6943 | dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; |
6944 | if (sp->high_dma_flag == TRUE) | |
6945 | dev->features |= NETIF_F_HIGHDMA; | |
1da177e4 | 6946 | dev->features |= NETIF_F_TSO; |
f83ef8c0 | 6947 | dev->features |= NETIF_F_TSO6; |
db874e65 | 6948 | if ((sp->device_type & XFRAME_II_DEVICE) && (ufo)) { |
fed5eccd AR |
6949 | dev->features |= NETIF_F_UFO; |
6950 | dev->features |= NETIF_F_HW_CSUM; | |
6951 | } | |
1da177e4 LT |
6952 | |
6953 | dev->tx_timeout = &s2io_tx_watchdog; | |
6954 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; | |
c4028958 DH |
6955 | INIT_WORK(&sp->rst_timer_task, s2io_restart_nic); |
6956 | INIT_WORK(&sp->set_link_task, s2io_set_link); | |
1da177e4 | 6957 | |
e960fc5c | 6958 | pci_save_state(sp->pdev); |
1da177e4 LT |
6959 | |
6960 | /* Setting swapper control on the NIC, for proper reset operation */ | |
6961 | if (s2io_set_swapper(sp)) { | |
6962 | DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n", | |
6963 | dev->name); | |
6964 | ret = -EAGAIN; | |
6965 | goto set_swap_failed; | |
6966 | } | |
6967 | ||
541ae68f K |
6968 | /* Verify if the Herc works on the slot its placed into */ |
6969 | if (sp->device_type & XFRAME_II_DEVICE) { | |
6970 | mode = s2io_verify_pci_mode(sp); | |
6971 | if (mode < 0) { | |
6972 | DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__); | |
6973 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); | |
6974 | ret = -EBADSLT; | |
6975 | goto set_swap_failed; | |
6976 | } | |
6977 | } | |
6978 | ||
6979 | /* Not needed for Herc */ | |
6980 | if (sp->device_type & XFRAME_I_DEVICE) { | |
6981 | /* | |
6982 | * Fix for all "FFs" MAC address problems observed on | |
6983 | * Alpha platforms | |
6984 | */ | |
6985 | fix_mac_address(sp); | |
6986 | s2io_reset(sp); | |
6987 | } | |
1da177e4 LT |
6988 | |
6989 | /* | |
1da177e4 LT |
6990 | * MAC address initialization. |
6991 | * For now only one mac address will be read and used. | |
6992 | */ | |
6993 | bar0 = sp->bar0; | |
6994 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
6995 | RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET); | |
6996 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
c92ca04b AR |
6997 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
6998 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
6999 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
7000 | mac_down = (u32) tmp64; | |
7001 | mac_up = (u32) (tmp64 >> 32); | |
7002 | ||
7003 | memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN)); | |
7004 | ||
7005 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); | |
7006 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
7007 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
7008 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
7009 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
7010 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
7011 | ||
1da177e4 LT |
7012 | /* Set the factory defined MAC address initially */ |
7013 | dev->addr_len = ETH_ALEN; | |
7014 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
7015 | ||
b41477f3 AR |
7016 | /* reset Nic and bring it to known state */ |
7017 | s2io_reset(sp); | |
7018 | ||
1da177e4 | 7019 | /* |
20346722 | 7020 | * Initialize the tasklet status and link state flags |
541ae68f | 7021 | * and the card state parameter |
1da177e4 LT |
7022 | */ |
7023 | atomic_set(&(sp->card_state), 0); | |
7024 | sp->tasklet_status = 0; | |
7025 | sp->link_state = 0; | |
7026 | ||
1da177e4 LT |
7027 | /* Initialize spinlocks */ |
7028 | spin_lock_init(&sp->tx_lock); | |
db874e65 SS |
7029 | |
7030 | if (!napi) | |
7031 | spin_lock_init(&sp->put_lock); | |
7ba013ac | 7032 | spin_lock_init(&sp->rx_lock); |
1da177e4 | 7033 | |
20346722 K |
7034 | /* |
7035 | * SXE-002: Configure link and activity LED to init state | |
7036 | * on driver load. | |
1da177e4 LT |
7037 | */ |
7038 | subid = sp->pdev->subsystem_device; | |
7039 | if ((subid & 0xFF) >= 0x07) { | |
7040 | val64 = readq(&bar0->gpio_control); | |
7041 | val64 |= 0x0000800000000000ULL; | |
7042 | writeq(val64, &bar0->gpio_control); | |
7043 | val64 = 0x0411040400000000ULL; | |
7044 | writeq(val64, (void __iomem *) bar0 + 0x2700); | |
7045 | val64 = readq(&bar0->gpio_control); | |
7046 | } | |
7047 | ||
7048 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
7049 | ||
7050 | if (register_netdev(dev)) { | |
7051 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
7052 | ret = -ENODEV; | |
7053 | goto register_failed; | |
7054 | } | |
9dc737a7 | 7055 | s2io_vpd_read(sp); |
9dc737a7 | 7056 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2005 Neterion Inc.\n"); |
b41477f3 AR |
7057 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, |
7058 | sp->product_name, get_xena_rev_id(sp->pdev)); | |
7059 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, | |
7060 | s2io_driver_version); | |
9dc737a7 | 7061 | DBG_PRINT(ERR_DBG, "%s: MAC ADDR: " |
19a60522 | 7062 | "%02x:%02x:%02x:%02x:%02x:%02x", dev->name, |
541ae68f K |
7063 | sp->def_mac_addr[0].mac_addr[0], |
7064 | sp->def_mac_addr[0].mac_addr[1], | |
7065 | sp->def_mac_addr[0].mac_addr[2], | |
7066 | sp->def_mac_addr[0].mac_addr[3], | |
7067 | sp->def_mac_addr[0].mac_addr[4], | |
7068 | sp->def_mac_addr[0].mac_addr[5]); | |
19a60522 | 7069 | DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num); |
9dc737a7 | 7070 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 7071 | mode = s2io_print_pci_mode(sp); |
541ae68f | 7072 | if (mode < 0) { |
9dc737a7 | 7073 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); |
541ae68f | 7074 | ret = -EBADSLT; |
9dc737a7 | 7075 | unregister_netdev(dev); |
541ae68f K |
7076 | goto set_swap_failed; |
7077 | } | |
541ae68f | 7078 | } |
9dc737a7 AR |
7079 | switch(sp->rxd_mode) { |
7080 | case RXD_MODE_1: | |
7081 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
7082 | dev->name); | |
7083 | break; | |
7084 | case RXD_MODE_3B: | |
7085 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
7086 | dev->name); | |
7087 | break; | |
7088 | case RXD_MODE_3A: | |
7089 | DBG_PRINT(ERR_DBG, "%s: 3-Buffer receive mode enabled\n", | |
7090 | dev->name); | |
7091 | break; | |
7092 | } | |
db874e65 SS |
7093 | |
7094 | if (napi) | |
7095 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); | |
9dc737a7 AR |
7096 | switch(sp->intr_type) { |
7097 | case INTA: | |
7098 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
7099 | break; | |
7100 | case MSI: | |
7101 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name); | |
7102 | break; | |
7103 | case MSI_X: | |
7104 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
7105 | break; | |
7106 | } | |
7d3d0439 RA |
7107 | if (sp->lro) |
7108 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", | |
9dc737a7 | 7109 | dev->name); |
db874e65 SS |
7110 | if (ufo) |
7111 | DBG_PRINT(ERR_DBG, "%s: UDP Fragmentation Offload(UFO)" | |
7112 | " enabled\n", dev->name); | |
7ba013ac | 7113 | /* Initialize device name */ |
9dc737a7 | 7114 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 7115 | |
b6e3f982 K |
7116 | /* Initialize bimodal Interrupts */ |
7117 | sp->config.bimodal = bimodal; | |
7118 | if (!(sp->device_type & XFRAME_II_DEVICE) && bimodal) { | |
7119 | sp->config.bimodal = 0; | |
7120 | DBG_PRINT(ERR_DBG,"%s:Bimodal intr not supported by Xframe I\n", | |
7121 | dev->name); | |
7122 | } | |
7123 | ||
20346722 K |
7124 | /* |
7125 | * Make Link state as off at this point, when the Link change | |
7126 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
7127 | * the right state. |
7128 | */ | |
7129 | netif_carrier_off(dev); | |
1da177e4 LT |
7130 | |
7131 | return 0; | |
7132 | ||
7133 | register_failed: | |
7134 | set_swap_failed: | |
7135 | iounmap(sp->bar1); | |
7136 | bar1_remap_failed: | |
7137 | iounmap(sp->bar0); | |
7138 | bar0_remap_failed: | |
7139 | mem_alloc_failed: | |
7140 | free_shared_mem(sp); | |
7141 | pci_disable_device(pdev); | |
cc6e7c44 RA |
7142 | if (dev_intr_type != MSI_X) |
7143 | pci_release_regions(pdev); | |
7144 | else { | |
7145 | release_mem_region(pci_resource_start(pdev, 0), | |
7146 | pci_resource_len(pdev, 0)); | |
7147 | release_mem_region(pci_resource_start(pdev, 2), | |
7148 | pci_resource_len(pdev, 2)); | |
7149 | } | |
1da177e4 LT |
7150 | pci_set_drvdata(pdev, NULL); |
7151 | free_netdev(dev); | |
7152 | ||
7153 | return ret; | |
7154 | } | |
7155 | ||
7156 | /** | |
20346722 | 7157 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 7158 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 7159 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 7160 | * PCI device and free up all resource held up by the device. This could |
20346722 | 7161 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
7162 | * from memory. |
7163 | */ | |
7164 | ||
7165 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
7166 | { | |
7167 | struct net_device *dev = | |
7168 | (struct net_device *) pci_get_drvdata(pdev); | |
1ee6dd77 | 7169 | struct s2io_nic *sp; |
1da177e4 LT |
7170 | |
7171 | if (dev == NULL) { | |
7172 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
7173 | return; | |
7174 | } | |
7175 | ||
7176 | sp = dev->priv; | |
7177 | unregister_netdev(dev); | |
7178 | ||
7179 | free_shared_mem(sp); | |
7180 | iounmap(sp->bar0); | |
7181 | iounmap(sp->bar1); | |
cc6e7c44 RA |
7182 | if (sp->intr_type != MSI_X) |
7183 | pci_release_regions(pdev); | |
7184 | else { | |
7185 | release_mem_region(pci_resource_start(pdev, 0), | |
7186 | pci_resource_len(pdev, 0)); | |
7187 | release_mem_region(pci_resource_start(pdev, 2), | |
7188 | pci_resource_len(pdev, 2)); | |
7189 | } | |
1da177e4 | 7190 | pci_set_drvdata(pdev, NULL); |
1da177e4 | 7191 | free_netdev(dev); |
19a60522 | 7192 | pci_disable_device(pdev); |
1da177e4 LT |
7193 | } |
7194 | ||
7195 | /** | |
7196 | * s2io_starter - Entry point for the driver | |
7197 | * Description: This function is the entry point for the driver. It verifies | |
7198 | * the module loadable parameters and initializes PCI configuration space. | |
7199 | */ | |
7200 | ||
7201 | int __init s2io_starter(void) | |
7202 | { | |
29917620 | 7203 | return pci_register_driver(&s2io_driver); |
1da177e4 LT |
7204 | } |
7205 | ||
7206 | /** | |
20346722 | 7207 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
7208 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
7209 | */ | |
7210 | ||
372cc597 | 7211 | static __exit void s2io_closer(void) |
1da177e4 LT |
7212 | { |
7213 | pci_unregister_driver(&s2io_driver); | |
7214 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
7215 | } | |
7216 | ||
7217 | module_init(s2io_starter); | |
7218 | module_exit(s2io_closer); | |
7d3d0439 | 7219 | |
6aa20a22 | 7220 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, |
1ee6dd77 | 7221 | struct tcphdr **tcp, struct RxD_t *rxdp) |
7d3d0439 RA |
7222 | { |
7223 | int ip_off; | |
7224 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
7225 | ||
7226 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
7227 | DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n", | |
7228 | __FUNCTION__); | |
7229 | return -1; | |
7230 | } | |
7231 | ||
7232 | /* TODO: | |
7233 | * By default the VLAN field in the MAC is stripped by the card, if this | |
7234 | * feature is turned off in rx_pa_cfg register, then the ip_off field | |
7235 | * has to be shifted by a further 2 bytes | |
7236 | */ | |
7237 | switch (l2_type) { | |
7238 | case 0: /* DIX type */ | |
7239 | case 4: /* DIX type with VLAN */ | |
7240 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; | |
7241 | break; | |
7242 | /* LLC, SNAP etc are considered non-mergeable */ | |
7243 | default: | |
7244 | return -1; | |
7245 | } | |
7246 | ||
7247 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
7248 | ip_len = (u8)((*ip)->ihl); | |
7249 | ip_len <<= 2; | |
7250 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
7251 | ||
7252 | return 0; | |
7253 | } | |
7254 | ||
1ee6dd77 | 7255 | static int check_for_socket_match(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7256 | struct tcphdr *tcp) |
7257 | { | |
7258 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7259 | if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) || | |
7260 | (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest)) | |
7261 | return -1; | |
7262 | return 0; | |
7263 | } | |
7264 | ||
7265 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
7266 | { | |
7267 | return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2)); | |
7268 | } | |
7269 | ||
1ee6dd77 | 7270 | static void initiate_new_session(struct lro *lro, u8 *l2h, |
7d3d0439 RA |
7271 | struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len) |
7272 | { | |
7273 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7274 | lro->l2h = l2h; | |
7275 | lro->iph = ip; | |
7276 | lro->tcph = tcp; | |
7277 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
7278 | lro->tcp_ack = ntohl(tcp->ack_seq); | |
7279 | lro->sg_num = 1; | |
7280 | lro->total_len = ntohs(ip->tot_len); | |
7281 | lro->frags_len = 0; | |
6aa20a22 | 7282 | /* |
7d3d0439 RA |
7283 | * check if we saw TCP timestamp. Other consistency checks have |
7284 | * already been done. | |
7285 | */ | |
7286 | if (tcp->doff == 8) { | |
7287 | u32 *ptr; | |
7288 | ptr = (u32 *)(tcp+1); | |
7289 | lro->saw_ts = 1; | |
7290 | lro->cur_tsval = *(ptr+1); | |
7291 | lro->cur_tsecr = *(ptr+2); | |
7292 | } | |
7293 | lro->in_use = 1; | |
7294 | } | |
7295 | ||
1ee6dd77 | 7296 | static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) |
7d3d0439 RA |
7297 | { |
7298 | struct iphdr *ip = lro->iph; | |
7299 | struct tcphdr *tcp = lro->tcph; | |
bd4f3ae1 | 7300 | __sum16 nchk; |
1ee6dd77 | 7301 | struct stat_block *statinfo = sp->mac_control.stats_info; |
7d3d0439 RA |
7302 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7303 | ||
7304 | /* Update L3 header */ | |
7305 | ip->tot_len = htons(lro->total_len); | |
7306 | ip->check = 0; | |
7307 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
7308 | ip->check = nchk; | |
7309 | ||
7310 | /* Update L4 header */ | |
7311 | tcp->ack_seq = lro->tcp_ack; | |
7312 | tcp->window = lro->window; | |
7313 | ||
7314 | /* Update tsecr field if this session has timestamps enabled */ | |
7315 | if (lro->saw_ts) { | |
7316 | u32 *ptr = (u32 *)(tcp + 1); | |
7317 | *(ptr+2) = lro->cur_tsecr; | |
7318 | } | |
7319 | ||
7320 | /* Update counters required for calculation of | |
7321 | * average no. of packets aggregated. | |
7322 | */ | |
7323 | statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num; | |
7324 | statinfo->sw_stat.num_aggregations++; | |
7325 | } | |
7326 | ||
1ee6dd77 | 7327 | static void aggregate_new_rx(struct lro *lro, struct iphdr *ip, |
7d3d0439 RA |
7328 | struct tcphdr *tcp, u32 l4_pyld) |
7329 | { | |
7330 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7331 | lro->total_len += l4_pyld; | |
7332 | lro->frags_len += l4_pyld; | |
7333 | lro->tcp_next_seq += l4_pyld; | |
7334 | lro->sg_num++; | |
7335 | ||
7336 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
7337 | lro->tcp_ack = tcp->ack_seq; | |
7338 | lro->window = tcp->window; | |
6aa20a22 | 7339 | |
7d3d0439 RA |
7340 | if (lro->saw_ts) { |
7341 | u32 *ptr; | |
7342 | /* Update tsecr and tsval from this packet */ | |
7343 | ptr = (u32 *) (tcp + 1); | |
6aa20a22 | 7344 | lro->cur_tsval = *(ptr + 1); |
7d3d0439 RA |
7345 | lro->cur_tsecr = *(ptr + 2); |
7346 | } | |
7347 | } | |
7348 | ||
1ee6dd77 | 7349 | static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip, |
7d3d0439 RA |
7350 | struct tcphdr *tcp, u32 tcp_pyld_len) |
7351 | { | |
7d3d0439 RA |
7352 | u8 *ptr; |
7353 | ||
79dc1901 AM |
7354 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7355 | ||
7d3d0439 RA |
7356 | if (!tcp_pyld_len) { |
7357 | /* Runt frame or a pure ack */ | |
7358 | return -1; | |
7359 | } | |
7360 | ||
7361 | if (ip->ihl != 5) /* IP has options */ | |
7362 | return -1; | |
7363 | ||
75c30b13 AR |
7364 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
7365 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
7366 | return -1; | |
7367 | ||
7368 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
7d3d0439 | 7369 | if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || |
75c30b13 | 7370 | tcp->ece || tcp->cwr || !tcp->ack) { |
7d3d0439 RA |
7371 | /* |
7372 | * Currently recognize only the ack control word and | |
7373 | * any other control field being set would result in | |
7374 | * flushing the LRO session | |
7375 | */ | |
7376 | return -1; | |
7377 | } | |
7378 | ||
6aa20a22 | 7379 | /* |
7d3d0439 RA |
7380 | * Allow only one TCP timestamp option. Don't aggregate if |
7381 | * any other options are detected. | |
7382 | */ | |
7383 | if (tcp->doff != 5 && tcp->doff != 8) | |
7384 | return -1; | |
7385 | ||
7386 | if (tcp->doff == 8) { | |
6aa20a22 | 7387 | ptr = (u8 *)(tcp + 1); |
7d3d0439 RA |
7388 | while (*ptr == TCPOPT_NOP) |
7389 | ptr++; | |
7390 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
7391 | return -1; | |
7392 | ||
7393 | /* Ensure timestamp value increases monotonically */ | |
7394 | if (l_lro) | |
7395 | if (l_lro->cur_tsval > *((u32 *)(ptr+2))) | |
7396 | return -1; | |
7397 | ||
7398 | /* timestamp echo reply should be non-zero */ | |
6aa20a22 | 7399 | if (*((u32 *)(ptr+6)) == 0) |
7d3d0439 RA |
7400 | return -1; |
7401 | } | |
7402 | ||
7403 | return 0; | |
7404 | } | |
7405 | ||
7406 | static int | |
1ee6dd77 RB |
7407 | s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro, |
7408 | struct RxD_t *rxdp, struct s2io_nic *sp) | |
7d3d0439 RA |
7409 | { |
7410 | struct iphdr *ip; | |
7411 | struct tcphdr *tcph; | |
7412 | int ret = 0, i; | |
7413 | ||
7414 | if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, | |
7415 | rxdp))) { | |
7416 | DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n", | |
7417 | ip->saddr, ip->daddr); | |
7418 | } else { | |
7419 | return ret; | |
7420 | } | |
7421 | ||
7422 | tcph = (struct tcphdr *)*tcp; | |
7423 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
7424 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7425 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7426 | if (l_lro->in_use) { |
7427 | if (check_for_socket_match(l_lro, ip, tcph)) | |
7428 | continue; | |
7429 | /* Sock pair matched */ | |
7430 | *lro = l_lro; | |
7431 | ||
7432 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
7433 | DBG_PRINT(INFO_DBG, "%s:Out of order. expected " | |
7434 | "0x%x, actual 0x%x\n", __FUNCTION__, | |
7435 | (*lro)->tcp_next_seq, | |
7436 | ntohl(tcph->seq)); | |
7437 | ||
7438 | sp->mac_control.stats_info-> | |
7439 | sw_stat.outof_sequence_pkts++; | |
7440 | ret = 2; | |
7441 | break; | |
7442 | } | |
7443 | ||
7444 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len)) | |
7445 | ret = 1; /* Aggregate */ | |
7446 | else | |
7447 | ret = 2; /* Flush both */ | |
7448 | break; | |
7449 | } | |
7450 | } | |
7451 | ||
7452 | if (ret == 0) { | |
7453 | /* Before searching for available LRO objects, | |
7454 | * check if the pkt is L3/L4 aggregatable. If not | |
7455 | * don't create new LRO session. Just send this | |
7456 | * packet up. | |
7457 | */ | |
7458 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) { | |
7459 | return 5; | |
7460 | } | |
7461 | ||
7462 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
1ee6dd77 | 7463 | struct lro *l_lro = &sp->lro0_n[i]; |
7d3d0439 RA |
7464 | if (!(l_lro->in_use)) { |
7465 | *lro = l_lro; | |
7466 | ret = 3; /* Begin anew */ | |
7467 | break; | |
7468 | } | |
7469 | } | |
7470 | } | |
7471 | ||
7472 | if (ret == 0) { /* sessions exceeded */ | |
7473 | DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n", | |
7474 | __FUNCTION__); | |
7475 | *lro = NULL; | |
7476 | return ret; | |
7477 | } | |
7478 | ||
7479 | switch (ret) { | |
7480 | case 3: | |
7481 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len); | |
7482 | break; | |
7483 | case 2: | |
7484 | update_L3L4_header(sp, *lro); | |
7485 | break; | |
7486 | case 1: | |
7487 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
7488 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7489 | update_L3L4_header(sp, *lro); | |
7490 | ret = 4; /* Flush the LRO */ | |
7491 | } | |
7492 | break; | |
7493 | default: | |
7494 | DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n", | |
7495 | __FUNCTION__); | |
7496 | break; | |
7497 | } | |
7498 | ||
7499 | return ret; | |
7500 | } | |
7501 | ||
1ee6dd77 | 7502 | static void clear_lro_session(struct lro *lro) |
7d3d0439 | 7503 | { |
1ee6dd77 | 7504 | static u16 lro_struct_size = sizeof(struct lro); |
7d3d0439 RA |
7505 | |
7506 | memset(lro, 0, lro_struct_size); | |
7507 | } | |
7508 | ||
7509 | static void queue_rx_frame(struct sk_buff *skb) | |
7510 | { | |
7511 | struct net_device *dev = skb->dev; | |
7512 | ||
7513 | skb->protocol = eth_type_trans(skb, dev); | |
db874e65 SS |
7514 | if (napi) |
7515 | netif_receive_skb(skb); | |
7516 | else | |
7517 | netif_rx(skb); | |
7d3d0439 RA |
7518 | } |
7519 | ||
1ee6dd77 RB |
7520 | static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro, |
7521 | struct sk_buff *skb, | |
7d3d0439 RA |
7522 | u32 tcp_len) |
7523 | { | |
75c30b13 | 7524 | struct sk_buff *first = lro->parent; |
7d3d0439 RA |
7525 | |
7526 | first->len += tcp_len; | |
7527 | first->data_len = lro->frags_len; | |
7528 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
7529 | if (skb_shinfo(first)->frag_list) |
7530 | lro->last_frag->next = skb; | |
7d3d0439 RA |
7531 | else |
7532 | skb_shinfo(first)->frag_list = skb; | |
372cc597 | 7533 | first->truesize += skb->truesize; |
75c30b13 | 7534 | lro->last_frag = skb; |
7d3d0439 RA |
7535 | sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; |
7536 | return; | |
7537 | } |