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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> | |
62 | #include <linux/sched.h> | |
63 | #include <linux/ethtool.h> | |
1da177e4 | 64 | #include <linux/workqueue.h> |
be3a6b02 | 65 | #include <linux/if_vlan.h> |
7d3d0439 RA |
66 | #include <linux/ip.h> |
67 | #include <linux/tcp.h> | |
68 | #include <net/tcp.h> | |
1da177e4 | 69 | |
1da177e4 LT |
70 | #include <asm/system.h> |
71 | #include <asm/uaccess.h> | |
20346722 | 72 | #include <asm/io.h> |
fe931395 | 73 | #include <asm/div64.h> |
1da177e4 LT |
74 | |
75 | /* local include */ | |
76 | #include "s2io.h" | |
77 | #include "s2io-regs.h" | |
78 | ||
75c30b13 | 79 | #define DRV_VERSION "2.0.15.2" |
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 | |
5e25b9dd K |
88 | static inline int RXD_IS_UP2DT(RxD_t *rxdp) |
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 | |
113 | static inline int rx_buffer_level(nic_t * sp, int rxb_size, int ring) | |
114 | { | |
20346722 K |
115 | mac_info_t *mac_control; |
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 | { | |
288 | nic_t *nic = dev->priv; | |
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 | { | |
299 | nic_t *nic = dev->priv; | |
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 AR |
402 | S2IO_PARM_INT(lro_max_pkts, 0xFFFF); |
403 | #ifndef CONFIG_S2IO_NAPI | |
404 | S2IO_PARM_INT(indicate_max_pkts, 0); | |
405 | #endif | |
406 | ||
407 | static unsigned int tx_fifo_len[MAX_TX_FIFOS] = | |
408 | {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; | |
409 | static unsigned int rx_ring_sz[MAX_RX_RINGS] = | |
410 | {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; | |
411 | static unsigned int rts_frm_len[MAX_RX_RINGS] = | |
412 | {[0 ...(MAX_RX_RINGS - 1)] = 0 }; | |
413 | ||
414 | module_param_array(tx_fifo_len, uint, NULL, 0); | |
415 | module_param_array(rx_ring_sz, uint, NULL, 0); | |
416 | module_param_array(rts_frm_len, uint, NULL, 0); | |
1da177e4 | 417 | |
20346722 | 418 | /* |
1da177e4 | 419 | * S2IO device table. |
20346722 | 420 | * This table lists all the devices that this driver supports. |
1da177e4 LT |
421 | */ |
422 | static struct pci_device_id s2io_tbl[] __devinitdata = { | |
423 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN, | |
424 | PCI_ANY_ID, PCI_ANY_ID}, | |
425 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI, | |
426 | PCI_ANY_ID, PCI_ANY_ID}, | |
427 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN, | |
20346722 K |
428 | PCI_ANY_ID, PCI_ANY_ID}, |
429 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI, | |
430 | PCI_ANY_ID, PCI_ANY_ID}, | |
1da177e4 LT |
431 | {0,} |
432 | }; | |
433 | ||
434 | MODULE_DEVICE_TABLE(pci, s2io_tbl); | |
435 | ||
436 | static struct pci_driver s2io_driver = { | |
437 | .name = "S2IO", | |
438 | .id_table = s2io_tbl, | |
439 | .probe = s2io_init_nic, | |
440 | .remove = __devexit_p(s2io_rem_nic), | |
441 | }; | |
442 | ||
443 | /* A simplifier macro used both by init and free shared_mem Fns(). */ | |
444 | #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each) | |
445 | ||
446 | /** | |
447 | * init_shared_mem - Allocation and Initialization of Memory | |
448 | * @nic: Device private variable. | |
20346722 K |
449 | * Description: The function allocates all the memory areas shared |
450 | * between the NIC and the driver. This includes Tx descriptors, | |
1da177e4 LT |
451 | * Rx descriptors and the statistics block. |
452 | */ | |
453 | ||
454 | static int init_shared_mem(struct s2io_nic *nic) | |
455 | { | |
456 | u32 size; | |
457 | void *tmp_v_addr, *tmp_v_addr_next; | |
458 | dma_addr_t tmp_p_addr, tmp_p_addr_next; | |
459 | RxD_block_t *pre_rxd_blk = NULL; | |
20346722 | 460 | int i, j, blk_cnt, rx_sz, tx_sz; |
1da177e4 LT |
461 | int lst_size, lst_per_page; |
462 | struct net_device *dev = nic->dev; | |
8ae418cf | 463 | unsigned long tmp; |
1da177e4 | 464 | buffAdd_t *ba; |
1da177e4 LT |
465 | |
466 | mac_info_t *mac_control; | |
467 | struct config_param *config; | |
468 | ||
469 | mac_control = &nic->mac_control; | |
470 | config = &nic->config; | |
471 | ||
472 | ||
473 | /* Allocation and initialization of TXDLs in FIOFs */ | |
474 | size = 0; | |
475 | for (i = 0; i < config->tx_fifo_num; i++) { | |
476 | size += config->tx_cfg[i].fifo_len; | |
477 | } | |
478 | if (size > MAX_AVAILABLE_TXDS) { | |
b41477f3 | 479 | DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); |
0b1f7ebe | 480 | DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); |
b41477f3 | 481 | return -EINVAL; |
1da177e4 LT |
482 | } |
483 | ||
484 | lst_size = (sizeof(TxD_t) * config->max_txds); | |
20346722 | 485 | tx_sz = lst_size * size; |
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; | |
490 | int list_holder_size = fifo_len * sizeof(list_info_hold_t); | |
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; | |
532 | DBG_PRINT(INIT_DBG, | |
533 | "%s: Zero DMA address for TxDL. ", dev->name); | |
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 | |
fed5eccd AR |
558 | nic->ufo_in_band_v = kmalloc((sizeof(u64) * size), GFP_KERNEL); |
559 | if (!nic->ufo_in_band_v) | |
560 | return -ENOMEM; | |
b41477f3 | 561 | memset(nic->ufo_in_band_v, 0, size); |
fed5eccd | 562 | |
1da177e4 LT |
563 | /* Allocation and initialization of RXDs in Rings */ |
564 | size = 0; | |
565 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
566 | if (config->rx_cfg[i].num_rxd % |
567 | (rxd_count[nic->rxd_mode] + 1)) { | |
1da177e4 LT |
568 | DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name); |
569 | DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ", | |
570 | i); | |
571 | DBG_PRINT(ERR_DBG, "RxDs per Block"); | |
572 | return FAILURE; | |
573 | } | |
574 | size += config->rx_cfg[i].num_rxd; | |
20346722 | 575 | mac_control->rings[i].block_count = |
da6971d8 AR |
576 | config->rx_cfg[i].num_rxd / |
577 | (rxd_count[nic->rxd_mode] + 1 ); | |
578 | mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd - | |
579 | mac_control->rings[i].block_count; | |
1da177e4 | 580 | } |
da6971d8 AR |
581 | if (nic->rxd_mode == RXD_MODE_1) |
582 | size = (size * (sizeof(RxD1_t))); | |
583 | else | |
584 | size = (size * (sizeof(RxD3_t))); | |
20346722 | 585 | rx_sz = size; |
1da177e4 LT |
586 | |
587 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
588 | mac_control->rings[i].rx_curr_get_info.block_index = 0; |
589 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
590 | mac_control->rings[i].rx_curr_get_info.ring_len = | |
1da177e4 | 591 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
592 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
593 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
594 | mac_control->rings[i].rx_curr_put_info.ring_len = | |
1da177e4 | 595 | config->rx_cfg[i].num_rxd - 1; |
20346722 K |
596 | mac_control->rings[i].nic = nic; |
597 | mac_control->rings[i].ring_no = i; | |
598 | ||
da6971d8 AR |
599 | blk_cnt = config->rx_cfg[i].num_rxd / |
600 | (rxd_count[nic->rxd_mode] + 1); | |
1da177e4 LT |
601 | /* Allocating all the Rx blocks */ |
602 | for (j = 0; j < blk_cnt; j++) { | |
da6971d8 AR |
603 | rx_block_info_t *rx_blocks; |
604 | int l; | |
605 | ||
606 | rx_blocks = &mac_control->rings[i].rx_blocks[j]; | |
607 | size = SIZE_OF_BLOCK; //size is always page size | |
1da177e4 LT |
608 | tmp_v_addr = pci_alloc_consistent(nic->pdev, size, |
609 | &tmp_p_addr); | |
610 | if (tmp_v_addr == NULL) { | |
611 | /* | |
20346722 K |
612 | * In case of failure, free_shared_mem() |
613 | * is called, which should free any | |
614 | * memory that was alloced till the | |
1da177e4 LT |
615 | * failure happened. |
616 | */ | |
da6971d8 | 617 | rx_blocks->block_virt_addr = tmp_v_addr; |
1da177e4 LT |
618 | return -ENOMEM; |
619 | } | |
620 | memset(tmp_v_addr, 0, size); | |
da6971d8 AR |
621 | rx_blocks->block_virt_addr = tmp_v_addr; |
622 | rx_blocks->block_dma_addr = tmp_p_addr; | |
623 | rx_blocks->rxds = kmalloc(sizeof(rxd_info_t)* | |
624 | rxd_count[nic->rxd_mode], | |
625 | GFP_KERNEL); | |
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 | ||
648 | pre_rxd_blk = (RxD_block_t *) 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 = | |
664 | kmalloc((sizeof(buffAdd_t *) * 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] = | |
671 | kmalloc((sizeof(buffAdd_t) * | |
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 */ | |
703 | size = sizeof(StatInfo_t); | |
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; | |
718 | mac_control->stats_info = (StatInfo_t *) tmp_v_addr; | |
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; | |
738 | mac_info_t *mac_control; | |
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 | ||
749 | lst_size = (sizeof(TxD_t) * config->max_txds); | |
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) |
758 | return; | |
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); | |
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]) { | |
812 | buffAdd_t *ba = | |
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 | ||
838 | static int s2io_verify_pci_mode(nic_t *nic) | |
839 | { | |
509a2671 | 840 | XENA_dev_config_t __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; | |
857 | while ((tdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) { | |
858 | if ((tdev->vendor == NEC_VENID) && (tdev->device == NEC_DEVID)){ | |
859 | if (tdev->bus == s2io_pdev->bus->parent) | |
860 | return 1; | |
861 | } | |
862 | } | |
863 | return 0; | |
864 | } | |
541ae68f | 865 | |
7b32a312 | 866 | static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266}; |
541ae68f K |
867 | /** |
868 | * s2io_print_pci_mode - | |
869 | */ | |
870 | static int s2io_print_pci_mode(nic_t *nic) | |
871 | { | |
509a2671 | 872 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
541ae68f K |
873 | register u64 val64 = 0; |
874 | int mode; | |
875 | struct config_param *config = &nic->config; | |
876 | ||
877 | val64 = readq(&bar0->pci_mode); | |
878 | mode = (u8)GET_PCI_MODE(val64); | |
879 | ||
880 | if ( val64 & PCI_MODE_UNKNOWN_MODE) | |
881 | return -1; /* Unknown PCI mode */ | |
882 | ||
c92ca04b AR |
883 | config->bus_speed = bus_speed[mode]; |
884 | ||
885 | if (s2io_on_nec_bridge(nic->pdev)) { | |
886 | DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n", | |
887 | nic->dev->name); | |
888 | return mode; | |
889 | } | |
890 | ||
541ae68f K |
891 | if (val64 & PCI_MODE_32_BITS) { |
892 | DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name); | |
893 | } else { | |
894 | DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name); | |
895 | } | |
896 | ||
897 | switch(mode) { | |
898 | case PCI_MODE_PCI_33: | |
899 | DBG_PRINT(ERR_DBG, "33MHz PCI bus\n"); | |
541ae68f K |
900 | break; |
901 | case PCI_MODE_PCI_66: | |
902 | DBG_PRINT(ERR_DBG, "66MHz PCI bus\n"); | |
541ae68f K |
903 | break; |
904 | case PCI_MODE_PCIX_M1_66: | |
905 | DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n"); | |
541ae68f K |
906 | break; |
907 | case PCI_MODE_PCIX_M1_100: | |
908 | DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n"); | |
541ae68f K |
909 | break; |
910 | case PCI_MODE_PCIX_M1_133: | |
911 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n"); | |
541ae68f K |
912 | break; |
913 | case PCI_MODE_PCIX_M2_66: | |
914 | DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n"); | |
541ae68f K |
915 | break; |
916 | case PCI_MODE_PCIX_M2_100: | |
917 | DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n"); | |
541ae68f K |
918 | break; |
919 | case PCI_MODE_PCIX_M2_133: | |
920 | DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n"); | |
541ae68f K |
921 | break; |
922 | default: | |
923 | return -1; /* Unsupported bus speed */ | |
924 | } | |
925 | ||
926 | return mode; | |
927 | } | |
928 | ||
20346722 K |
929 | /** |
930 | * init_nic - Initialization of hardware | |
1da177e4 | 931 | * @nic: device peivate variable |
20346722 K |
932 | * Description: The function sequentially configures every block |
933 | * of the H/W from their reset values. | |
934 | * Return Value: SUCCESS on success and | |
1da177e4 LT |
935 | * '-1' on failure (endian settings incorrect). |
936 | */ | |
937 | ||
938 | static int init_nic(struct s2io_nic *nic) | |
939 | { | |
940 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
941 | struct net_device *dev = nic->dev; | |
942 | register u64 val64 = 0; | |
943 | void __iomem *add; | |
944 | u32 time; | |
945 | int i, j; | |
946 | mac_info_t *mac_control; | |
947 | struct config_param *config; | |
c92ca04b | 948 | int dtx_cnt = 0; |
1da177e4 | 949 | unsigned long long mem_share; |
20346722 | 950 | int mem_size; |
1da177e4 LT |
951 | |
952 | mac_control = &nic->mac_control; | |
953 | config = &nic->config; | |
954 | ||
5e25b9dd | 955 | /* to set the swapper controle on the card */ |
20346722 | 956 | if(s2io_set_swapper(nic)) { |
1da177e4 LT |
957 | DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); |
958 | return -1; | |
959 | } | |
960 | ||
541ae68f K |
961 | /* |
962 | * Herc requires EOI to be removed from reset before XGXS, so.. | |
963 | */ | |
964 | if (nic->device_type & XFRAME_II_DEVICE) { | |
965 | val64 = 0xA500000000ULL; | |
966 | writeq(val64, &bar0->sw_reset); | |
967 | msleep(500); | |
968 | val64 = readq(&bar0->sw_reset); | |
969 | } | |
970 | ||
1da177e4 LT |
971 | /* Remove XGXS from reset state */ |
972 | val64 = 0; | |
973 | writeq(val64, &bar0->sw_reset); | |
1da177e4 | 974 | msleep(500); |
20346722 | 975 | val64 = readq(&bar0->sw_reset); |
1da177e4 LT |
976 | |
977 | /* Enable Receiving broadcasts */ | |
978 | add = &bar0->mac_cfg; | |
979 | val64 = readq(&bar0->mac_cfg); | |
980 | val64 |= MAC_RMAC_BCAST_ENABLE; | |
981 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
982 | writel((u32) val64, add); | |
983 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
984 | writel((u32) (val64 >> 32), (add + 4)); | |
985 | ||
986 | /* Read registers in all blocks */ | |
987 | val64 = readq(&bar0->mac_int_mask); | |
988 | val64 = readq(&bar0->mc_int_mask); | |
989 | val64 = readq(&bar0->xgxs_int_mask); | |
990 | ||
991 | /* Set MTU */ | |
992 | val64 = dev->mtu; | |
993 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
994 | ||
541ae68f K |
995 | if (nic->device_type & XFRAME_II_DEVICE) { |
996 | while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) { | |
303bcb4b | 997 | SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt], |
1da177e4 | 998 | &bar0->dtx_control, UF); |
541ae68f K |
999 | if (dtx_cnt & 0x1) |
1000 | msleep(1); /* Necessary!! */ | |
1da177e4 LT |
1001 | dtx_cnt++; |
1002 | } | |
541ae68f | 1003 | } else { |
c92ca04b AR |
1004 | while (xena_dtx_cfg[dtx_cnt] != END_SIGN) { |
1005 | SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt], | |
1006 | &bar0->dtx_control, UF); | |
1007 | val64 = readq(&bar0->dtx_control); | |
1008 | dtx_cnt++; | |
1da177e4 LT |
1009 | } |
1010 | } | |
1011 | ||
1012 | /* Tx DMA Initialization */ | |
1013 | val64 = 0; | |
1014 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1015 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1016 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1017 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1018 | ||
1019 | ||
1020 | for (i = 0, j = 0; i < config->tx_fifo_num; i++) { | |
1021 | val64 |= | |
1022 | vBIT(config->tx_cfg[i].fifo_len - 1, ((i * 32) + 19), | |
1023 | 13) | vBIT(config->tx_cfg[i].fifo_priority, | |
1024 | ((i * 32) + 5), 3); | |
1025 | ||
1026 | if (i == (config->tx_fifo_num - 1)) { | |
1027 | if (i % 2 == 0) | |
1028 | i++; | |
1029 | } | |
1030 | ||
1031 | switch (i) { | |
1032 | case 1: | |
1033 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1034 | val64 = 0; | |
1035 | break; | |
1036 | case 3: | |
1037 | writeq(val64, &bar0->tx_fifo_partition_1); | |
1038 | val64 = 0; | |
1039 | break; | |
1040 | case 5: | |
1041 | writeq(val64, &bar0->tx_fifo_partition_2); | |
1042 | val64 = 0; | |
1043 | break; | |
1044 | case 7: | |
1045 | writeq(val64, &bar0->tx_fifo_partition_3); | |
1046 | break; | |
1047 | } | |
1048 | } | |
1049 | ||
5e25b9dd K |
1050 | /* |
1051 | * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug | |
1052 | * SXE-008 TRANSMIT DMA ARBITRATION ISSUE. | |
1053 | */ | |
541ae68f K |
1054 | if ((nic->device_type == XFRAME_I_DEVICE) && |
1055 | (get_xena_rev_id(nic->pdev) < 4)) | |
5e25b9dd K |
1056 | writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable); |
1057 | ||
1da177e4 LT |
1058 | val64 = readq(&bar0->tx_fifo_partition_0); |
1059 | DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n", | |
1060 | &bar0->tx_fifo_partition_0, (unsigned long long) val64); | |
1061 | ||
20346722 K |
1062 | /* |
1063 | * Initialization of Tx_PA_CONFIG register to ignore packet | |
1da177e4 LT |
1064 | * integrity checking. |
1065 | */ | |
1066 | val64 = readq(&bar0->tx_pa_cfg); | |
1067 | val64 |= TX_PA_CFG_IGNORE_FRM_ERR | TX_PA_CFG_IGNORE_SNAP_OUI | | |
1068 | TX_PA_CFG_IGNORE_LLC_CTRL | TX_PA_CFG_IGNORE_L2_ERR; | |
1069 | writeq(val64, &bar0->tx_pa_cfg); | |
1070 | ||
1071 | /* Rx DMA intialization. */ | |
1072 | val64 = 0; | |
1073 | for (i = 0; i < config->rx_ring_num; i++) { | |
1074 | val64 |= | |
1075 | vBIT(config->rx_cfg[i].ring_priority, (5 + (i * 8)), | |
1076 | 3); | |
1077 | } | |
1078 | writeq(val64, &bar0->rx_queue_priority); | |
1079 | ||
20346722 K |
1080 | /* |
1081 | * Allocating equal share of memory to all the | |
1da177e4 LT |
1082 | * configured Rings. |
1083 | */ | |
1084 | val64 = 0; | |
541ae68f K |
1085 | if (nic->device_type & XFRAME_II_DEVICE) |
1086 | mem_size = 32; | |
1087 | else | |
1088 | mem_size = 64; | |
1089 | ||
1da177e4 LT |
1090 | for (i = 0; i < config->rx_ring_num; i++) { |
1091 | switch (i) { | |
1092 | case 0: | |
20346722 K |
1093 | mem_share = (mem_size / config->rx_ring_num + |
1094 | mem_size % config->rx_ring_num); | |
1da177e4 LT |
1095 | val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share); |
1096 | continue; | |
1097 | case 1: | |
20346722 | 1098 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1099 | val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share); |
1100 | continue; | |
1101 | case 2: | |
20346722 | 1102 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1103 | val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share); |
1104 | continue; | |
1105 | case 3: | |
20346722 | 1106 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1107 | val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share); |
1108 | continue; | |
1109 | case 4: | |
20346722 | 1110 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1111 | val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share); |
1112 | continue; | |
1113 | case 5: | |
20346722 | 1114 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1115 | val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share); |
1116 | continue; | |
1117 | case 6: | |
20346722 | 1118 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1119 | val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share); |
1120 | continue; | |
1121 | case 7: | |
20346722 | 1122 | mem_share = (mem_size / config->rx_ring_num); |
1da177e4 LT |
1123 | val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share); |
1124 | continue; | |
1125 | } | |
1126 | } | |
1127 | writeq(val64, &bar0->rx_queue_cfg); | |
1128 | ||
20346722 | 1129 | /* |
5e25b9dd K |
1130 | * Filling Tx round robin registers |
1131 | * as per the number of FIFOs | |
1da177e4 | 1132 | */ |
5e25b9dd K |
1133 | switch (config->tx_fifo_num) { |
1134 | case 1: | |
1135 | val64 = 0x0000000000000000ULL; | |
1136 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1137 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1138 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1139 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1140 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1141 | break; | |
1142 | case 2: | |
1143 | val64 = 0x0000010000010000ULL; | |
1144 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1145 | val64 = 0x0100000100000100ULL; | |
1146 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1147 | val64 = 0x0001000001000001ULL; | |
1148 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1149 | val64 = 0x0000010000010000ULL; | |
1150 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1151 | val64 = 0x0100000000000000ULL; | |
1152 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1153 | break; | |
1154 | case 3: | |
1155 | val64 = 0x0001000102000001ULL; | |
1156 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1157 | val64 = 0x0001020000010001ULL; | |
1158 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1159 | val64 = 0x0200000100010200ULL; | |
1160 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1161 | val64 = 0x0001000102000001ULL; | |
1162 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1163 | val64 = 0x0001020000000000ULL; | |
1164 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1165 | break; | |
1166 | case 4: | |
1167 | val64 = 0x0001020300010200ULL; | |
1168 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1169 | val64 = 0x0100000102030001ULL; | |
1170 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1171 | val64 = 0x0200010000010203ULL; | |
1172 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1173 | val64 = 0x0001020001000001ULL; | |
1174 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1175 | val64 = 0x0203000100000000ULL; | |
1176 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1177 | break; | |
1178 | case 5: | |
1179 | val64 = 0x0001000203000102ULL; | |
1180 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1181 | val64 = 0x0001020001030004ULL; | |
1182 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1183 | val64 = 0x0001000203000102ULL; | |
1184 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1185 | val64 = 0x0001020001030004ULL; | |
1186 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1187 | val64 = 0x0001000000000000ULL; | |
1188 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1189 | break; | |
1190 | case 6: | |
1191 | val64 = 0x0001020304000102ULL; | |
1192 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1193 | val64 = 0x0304050001020001ULL; | |
1194 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1195 | val64 = 0x0203000100000102ULL; | |
1196 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1197 | val64 = 0x0304000102030405ULL; | |
1198 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1199 | val64 = 0x0001000200000000ULL; | |
1200 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1201 | break; | |
1202 | case 7: | |
1203 | val64 = 0x0001020001020300ULL; | |
1204 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1205 | val64 = 0x0102030400010203ULL; | |
1206 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1207 | val64 = 0x0405060001020001ULL; | |
1208 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1209 | val64 = 0x0304050000010200ULL; | |
1210 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1211 | val64 = 0x0102030000000000ULL; | |
1212 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1213 | break; | |
1214 | case 8: | |
1215 | val64 = 0x0001020300040105ULL; | |
1216 | writeq(val64, &bar0->tx_w_round_robin_0); | |
1217 | val64 = 0x0200030106000204ULL; | |
1218 | writeq(val64, &bar0->tx_w_round_robin_1); | |
1219 | val64 = 0x0103000502010007ULL; | |
1220 | writeq(val64, &bar0->tx_w_round_robin_2); | |
1221 | val64 = 0x0304010002060500ULL; | |
1222 | writeq(val64, &bar0->tx_w_round_robin_3); | |
1223 | val64 = 0x0103020400000000ULL; | |
1224 | writeq(val64, &bar0->tx_w_round_robin_4); | |
1225 | break; | |
1226 | } | |
1227 | ||
b41477f3 | 1228 | /* Enable all configured Tx FIFO partitions */ |
5d3213cc AR |
1229 | val64 = readq(&bar0->tx_fifo_partition_0); |
1230 | val64 |= (TX_FIFO_PARTITION_EN); | |
1231 | writeq(val64, &bar0->tx_fifo_partition_0); | |
1232 | ||
5e25b9dd K |
1233 | /* Filling the Rx round robin registers as per the |
1234 | * number of Rings and steering based on QoS. | |
1235 | */ | |
1236 | switch (config->rx_ring_num) { | |
1237 | case 1: | |
1238 | val64 = 0x8080808080808080ULL; | |
1239 | writeq(val64, &bar0->rts_qos_steering); | |
1240 | break; | |
1241 | case 2: | |
1242 | val64 = 0x0000010000010000ULL; | |
1243 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1244 | val64 = 0x0100000100000100ULL; | |
1245 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1246 | val64 = 0x0001000001000001ULL; | |
1247 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1248 | val64 = 0x0000010000010000ULL; | |
1249 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1250 | val64 = 0x0100000000000000ULL; | |
1251 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1252 | ||
1253 | val64 = 0x8080808040404040ULL; | |
1254 | writeq(val64, &bar0->rts_qos_steering); | |
1255 | break; | |
1256 | case 3: | |
1257 | val64 = 0x0001000102000001ULL; | |
1258 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1259 | val64 = 0x0001020000010001ULL; | |
1260 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1261 | val64 = 0x0200000100010200ULL; | |
1262 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1263 | val64 = 0x0001000102000001ULL; | |
1264 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1265 | val64 = 0x0001020000000000ULL; | |
1266 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1267 | ||
1268 | val64 = 0x8080804040402020ULL; | |
1269 | writeq(val64, &bar0->rts_qos_steering); | |
1270 | break; | |
1271 | case 4: | |
1272 | val64 = 0x0001020300010200ULL; | |
1273 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1274 | val64 = 0x0100000102030001ULL; | |
1275 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1276 | val64 = 0x0200010000010203ULL; | |
1277 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1278 | val64 = 0x0001020001000001ULL; | |
1279 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1280 | val64 = 0x0203000100000000ULL; | |
1281 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1282 | ||
1283 | val64 = 0x8080404020201010ULL; | |
1284 | writeq(val64, &bar0->rts_qos_steering); | |
1285 | break; | |
1286 | case 5: | |
1287 | val64 = 0x0001000203000102ULL; | |
1288 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1289 | val64 = 0x0001020001030004ULL; | |
1290 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1291 | val64 = 0x0001000203000102ULL; | |
1292 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1293 | val64 = 0x0001020001030004ULL; | |
1294 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1295 | val64 = 0x0001000000000000ULL; | |
1296 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1297 | ||
1298 | val64 = 0x8080404020201008ULL; | |
1299 | writeq(val64, &bar0->rts_qos_steering); | |
1300 | break; | |
1301 | case 6: | |
1302 | val64 = 0x0001020304000102ULL; | |
1303 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1304 | val64 = 0x0304050001020001ULL; | |
1305 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1306 | val64 = 0x0203000100000102ULL; | |
1307 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1308 | val64 = 0x0304000102030405ULL; | |
1309 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1310 | val64 = 0x0001000200000000ULL; | |
1311 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1312 | ||
1313 | val64 = 0x8080404020100804ULL; | |
1314 | writeq(val64, &bar0->rts_qos_steering); | |
1315 | break; | |
1316 | case 7: | |
1317 | val64 = 0x0001020001020300ULL; | |
1318 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1319 | val64 = 0x0102030400010203ULL; | |
1320 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1321 | val64 = 0x0405060001020001ULL; | |
1322 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1323 | val64 = 0x0304050000010200ULL; | |
1324 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1325 | val64 = 0x0102030000000000ULL; | |
1326 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1327 | ||
1328 | val64 = 0x8080402010080402ULL; | |
1329 | writeq(val64, &bar0->rts_qos_steering); | |
1330 | break; | |
1331 | case 8: | |
1332 | val64 = 0x0001020300040105ULL; | |
1333 | writeq(val64, &bar0->rx_w_round_robin_0); | |
1334 | val64 = 0x0200030106000204ULL; | |
1335 | writeq(val64, &bar0->rx_w_round_robin_1); | |
1336 | val64 = 0x0103000502010007ULL; | |
1337 | writeq(val64, &bar0->rx_w_round_robin_2); | |
1338 | val64 = 0x0304010002060500ULL; | |
1339 | writeq(val64, &bar0->rx_w_round_robin_3); | |
1340 | val64 = 0x0103020400000000ULL; | |
1341 | writeq(val64, &bar0->rx_w_round_robin_4); | |
1342 | ||
1343 | val64 = 0x8040201008040201ULL; | |
1344 | writeq(val64, &bar0->rts_qos_steering); | |
1345 | break; | |
1346 | } | |
1da177e4 LT |
1347 | |
1348 | /* UDP Fix */ | |
1349 | val64 = 0; | |
20346722 | 1350 | for (i = 0; i < 8; i++) |
1da177e4 LT |
1351 | writeq(val64, &bar0->rts_frm_len_n[i]); |
1352 | ||
5e25b9dd K |
1353 | /* Set the default rts frame length for the rings configured */ |
1354 | val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22); | |
1355 | for (i = 0 ; i < config->rx_ring_num ; i++) | |
1356 | writeq(val64, &bar0->rts_frm_len_n[i]); | |
1357 | ||
1358 | /* Set the frame length for the configured rings | |
1359 | * desired by the user | |
1360 | */ | |
1361 | for (i = 0; i < config->rx_ring_num; i++) { | |
1362 | /* If rts_frm_len[i] == 0 then it is assumed that user not | |
1363 | * specified frame length steering. | |
1364 | * If the user provides the frame length then program | |
1365 | * the rts_frm_len register for those values or else | |
1366 | * leave it as it is. | |
1367 | */ | |
1368 | if (rts_frm_len[i] != 0) { | |
1369 | writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]), | |
1370 | &bar0->rts_frm_len_n[i]); | |
1371 | } | |
1372 | } | |
1da177e4 | 1373 | |
20346722 | 1374 | /* Program statistics memory */ |
1da177e4 | 1375 | writeq(mac_control->stats_mem_phy, &bar0->stat_addr); |
1da177e4 | 1376 | |
541ae68f K |
1377 | if (nic->device_type == XFRAME_II_DEVICE) { |
1378 | val64 = STAT_BC(0x320); | |
1379 | writeq(val64, &bar0->stat_byte_cnt); | |
1380 | } | |
1381 | ||
20346722 | 1382 | /* |
1da177e4 LT |
1383 | * Initializing the sampling rate for the device to calculate the |
1384 | * bandwidth utilization. | |
1385 | */ | |
1386 | val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) | | |
1387 | MAC_RX_LINK_UTIL_VAL(rmac_util_period); | |
1388 | writeq(val64, &bar0->mac_link_util); | |
1389 | ||
1390 | ||
20346722 K |
1391 | /* |
1392 | * Initializing the Transmit and Receive Traffic Interrupt | |
1da177e4 LT |
1393 | * Scheme. |
1394 | */ | |
20346722 K |
1395 | /* |
1396 | * TTI Initialization. Default Tx timer gets us about | |
1da177e4 LT |
1397 | * 250 interrupts per sec. Continuous interrupts are enabled |
1398 | * by default. | |
1399 | */ | |
541ae68f K |
1400 | if (nic->device_type == XFRAME_II_DEVICE) { |
1401 | int count = (nic->config.bus_speed * 125)/2; | |
1402 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count); | |
1403 | } else { | |
1404 | ||
1405 | val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078); | |
1406 | } | |
1407 | val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) | | |
1da177e4 | 1408 | TTI_DATA1_MEM_TX_URNG_B(0x10) | |
5e25b9dd | 1409 | TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN; |
541ae68f K |
1410 | if (use_continuous_tx_intrs) |
1411 | val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN; | |
1da177e4 LT |
1412 | writeq(val64, &bar0->tti_data1_mem); |
1413 | ||
1414 | val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) | | |
1415 | TTI_DATA2_MEM_TX_UFC_B(0x20) | | |
5e25b9dd | 1416 | TTI_DATA2_MEM_TX_UFC_C(0x70) | TTI_DATA2_MEM_TX_UFC_D(0x80); |
1da177e4 LT |
1417 | writeq(val64, &bar0->tti_data2_mem); |
1418 | ||
1419 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1420 | writeq(val64, &bar0->tti_command_mem); | |
1421 | ||
20346722 | 1422 | /* |
1da177e4 LT |
1423 | * Once the operation completes, the Strobe bit of the command |
1424 | * register will be reset. We poll for this particular condition | |
1425 | * We wait for a maximum of 500ms for the operation to complete, | |
1426 | * if it's not complete by then we return error. | |
1427 | */ | |
1428 | time = 0; | |
1429 | while (TRUE) { | |
1430 | val64 = readq(&bar0->tti_command_mem); | |
1431 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1432 | break; | |
1433 | } | |
1434 | if (time > 10) { | |
1435 | DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", | |
1436 | dev->name); | |
1437 | return -1; | |
1438 | } | |
1439 | msleep(50); | |
1440 | time++; | |
1441 | } | |
1442 | ||
b6e3f982 K |
1443 | if (nic->config.bimodal) { |
1444 | int k = 0; | |
1445 | for (k = 0; k < config->rx_ring_num; k++) { | |
1446 | val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD; | |
1447 | val64 |= TTI_CMD_MEM_OFFSET(0x38+k); | |
1448 | writeq(val64, &bar0->tti_command_mem); | |
541ae68f | 1449 | |
541ae68f | 1450 | /* |
b6e3f982 K |
1451 | * Once the operation completes, the Strobe bit of the command |
1452 | * register will be reset. We poll for this particular condition | |
1453 | * We wait for a maximum of 500ms for the operation to complete, | |
1454 | * if it's not complete by then we return error. | |
1455 | */ | |
1456 | time = 0; | |
1457 | while (TRUE) { | |
1458 | val64 = readq(&bar0->tti_command_mem); | |
1459 | if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1460 | break; | |
1461 | } | |
1462 | if (time > 10) { | |
1463 | DBG_PRINT(ERR_DBG, | |
1464 | "%s: TTI init Failed\n", | |
1465 | dev->name); | |
1466 | return -1; | |
1467 | } | |
1468 | time++; | |
1469 | msleep(50); | |
1470 | } | |
1471 | } | |
541ae68f | 1472 | } else { |
1da177e4 | 1473 | |
b6e3f982 K |
1474 | /* RTI Initialization */ |
1475 | if (nic->device_type == XFRAME_II_DEVICE) { | |
1476 | /* | |
1477 | * Programmed to generate Apprx 500 Intrs per | |
1478 | * second | |
1479 | */ | |
1480 | int count = (nic->config.bus_speed * 125)/4; | |
1481 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count); | |
1482 | } else { | |
1483 | val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF); | |
1484 | } | |
1485 | val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) | | |
1486 | RTI_DATA1_MEM_RX_URNG_B(0x10) | | |
1487 | RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN; | |
1da177e4 | 1488 | |
b6e3f982 | 1489 | writeq(val64, &bar0->rti_data1_mem); |
1da177e4 | 1490 | |
b6e3f982 | 1491 | val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) | |
cc6e7c44 RA |
1492 | RTI_DATA2_MEM_RX_UFC_B(0x2) ; |
1493 | if (nic->intr_type == MSI_X) | |
1494 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \ | |
1495 | RTI_DATA2_MEM_RX_UFC_D(0x40)); | |
1496 | else | |
1497 | val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \ | |
1498 | RTI_DATA2_MEM_RX_UFC_D(0x80)); | |
b6e3f982 | 1499 | writeq(val64, &bar0->rti_data2_mem); |
1da177e4 | 1500 | |
b6e3f982 K |
1501 | for (i = 0; i < config->rx_ring_num; i++) { |
1502 | val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD | |
1503 | | RTI_CMD_MEM_OFFSET(i); | |
1504 | writeq(val64, &bar0->rti_command_mem); | |
1505 | ||
1506 | /* | |
1507 | * Once the operation completes, the Strobe bit of the | |
1508 | * command register will be reset. We poll for this | |
1509 | * particular condition. We wait for a maximum of 500ms | |
1510 | * for the operation to complete, if it's not complete | |
1511 | * by then we return error. | |
1512 | */ | |
1513 | time = 0; | |
1514 | while (TRUE) { | |
1515 | val64 = readq(&bar0->rti_command_mem); | |
1516 | if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) { | |
1517 | break; | |
1518 | } | |
1519 | if (time > 10) { | |
1520 | DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", | |
1521 | dev->name); | |
1522 | return -1; | |
1523 | } | |
1524 | time++; | |
1525 | msleep(50); | |
1526 | } | |
1da177e4 | 1527 | } |
1da177e4 LT |
1528 | } |
1529 | ||
20346722 K |
1530 | /* |
1531 | * Initializing proper values as Pause threshold into all | |
1da177e4 LT |
1532 | * the 8 Queues on Rx side. |
1533 | */ | |
1534 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3); | |
1535 | writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7); | |
1536 | ||
1537 | /* Disable RMAC PAD STRIPPING */ | |
509a2671 | 1538 | add = &bar0->mac_cfg; |
1da177e4 LT |
1539 | val64 = readq(&bar0->mac_cfg); |
1540 | val64 &= ~(MAC_CFG_RMAC_STRIP_PAD); | |
1541 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1542 | writel((u32) (val64), add); | |
1543 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1544 | writel((u32) (val64 >> 32), (add + 4)); | |
1545 | val64 = readq(&bar0->mac_cfg); | |
1546 | ||
7d3d0439 RA |
1547 | /* Enable FCS stripping by adapter */ |
1548 | add = &bar0->mac_cfg; | |
1549 | val64 = readq(&bar0->mac_cfg); | |
1550 | val64 |= MAC_CFG_RMAC_STRIP_FCS; | |
1551 | if (nic->device_type == XFRAME_II_DEVICE) | |
1552 | writeq(val64, &bar0->mac_cfg); | |
1553 | else { | |
1554 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1555 | writel((u32) (val64), add); | |
1556 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
1557 | writel((u32) (val64 >> 32), (add + 4)); | |
1558 | } | |
1559 | ||
20346722 K |
1560 | /* |
1561 | * Set the time value to be inserted in the pause frame | |
1da177e4 LT |
1562 | * generated by xena. |
1563 | */ | |
1564 | val64 = readq(&bar0->rmac_pause_cfg); | |
1565 | val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff)); | |
1566 | val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time); | |
1567 | writeq(val64, &bar0->rmac_pause_cfg); | |
1568 | ||
20346722 | 1569 | /* |
1da177e4 LT |
1570 | * Set the Threshold Limit for Generating the pause frame |
1571 | * If the amount of data in any Queue exceeds ratio of | |
1572 | * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256 | |
1573 | * pause frame is generated | |
1574 | */ | |
1575 | val64 = 0; | |
1576 | for (i = 0; i < 4; i++) { | |
1577 | val64 |= | |
1578 | (((u64) 0xFF00 | nic->mac_control. | |
1579 | mc_pause_threshold_q0q3) | |
1580 | << (i * 2 * 8)); | |
1581 | } | |
1582 | writeq(val64, &bar0->mc_pause_thresh_q0q3); | |
1583 | ||
1584 | val64 = 0; | |
1585 | for (i = 0; i < 4; i++) { | |
1586 | val64 |= | |
1587 | (((u64) 0xFF00 | nic->mac_control. | |
1588 | mc_pause_threshold_q4q7) | |
1589 | << (i * 2 * 8)); | |
1590 | } | |
1591 | writeq(val64, &bar0->mc_pause_thresh_q4q7); | |
1592 | ||
20346722 K |
1593 | /* |
1594 | * TxDMA will stop Read request if the number of read split has | |
1da177e4 LT |
1595 | * exceeded the limit pointed by shared_splits |
1596 | */ | |
1597 | val64 = readq(&bar0->pic_control); | |
1598 | val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits); | |
1599 | writeq(val64, &bar0->pic_control); | |
1600 | ||
863c11a9 AR |
1601 | if (nic->config.bus_speed == 266) { |
1602 | writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout); | |
1603 | writeq(0x0, &bar0->read_retry_delay); | |
1604 | writeq(0x0, &bar0->write_retry_delay); | |
1605 | } | |
1606 | ||
541ae68f K |
1607 | /* |
1608 | * Programming the Herc to split every write transaction | |
1609 | * that does not start on an ADB to reduce disconnects. | |
1610 | */ | |
1611 | if (nic->device_type == XFRAME_II_DEVICE) { | |
863c11a9 AR |
1612 | val64 = EXT_REQ_EN | MISC_LINK_STABILITY_PRD(3); |
1613 | writeq(val64, &bar0->misc_control); | |
1614 | val64 = readq(&bar0->pic_control2); | |
1615 | val64 &= ~(BIT(13)|BIT(14)|BIT(15)); | |
1616 | writeq(val64, &bar0->pic_control2); | |
541ae68f | 1617 | } |
c92ca04b AR |
1618 | if (strstr(nic->product_name, "CX4")) { |
1619 | val64 = TMAC_AVG_IPG(0x17); | |
1620 | writeq(val64, &bar0->tmac_avg_ipg); | |
a371a07d K |
1621 | } |
1622 | ||
1da177e4 LT |
1623 | return SUCCESS; |
1624 | } | |
a371a07d K |
1625 | #define LINK_UP_DOWN_INTERRUPT 1 |
1626 | #define MAC_RMAC_ERR_TIMER 2 | |
1627 | ||
ac1f60db | 1628 | static int s2io_link_fault_indication(nic_t *nic) |
a371a07d | 1629 | { |
cc6e7c44 RA |
1630 | if (nic->intr_type != INTA) |
1631 | return MAC_RMAC_ERR_TIMER; | |
a371a07d K |
1632 | if (nic->device_type == XFRAME_II_DEVICE) |
1633 | return LINK_UP_DOWN_INTERRUPT; | |
1634 | else | |
1635 | return MAC_RMAC_ERR_TIMER; | |
1636 | } | |
1da177e4 | 1637 | |
20346722 K |
1638 | /** |
1639 | * en_dis_able_nic_intrs - Enable or Disable the interrupts | |
1da177e4 LT |
1640 | * @nic: device private variable, |
1641 | * @mask: A mask indicating which Intr block must be modified and, | |
1642 | * @flag: A flag indicating whether to enable or disable the Intrs. | |
1643 | * Description: This function will either disable or enable the interrupts | |
20346722 K |
1644 | * depending on the flag argument. The mask argument can be used to |
1645 | * enable/disable any Intr block. | |
1da177e4 LT |
1646 | * Return Value: NONE. |
1647 | */ | |
1648 | ||
1649 | static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) | |
1650 | { | |
1651 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
1652 | register u64 val64 = 0, temp64 = 0; | |
1653 | ||
1654 | /* Top level interrupt classification */ | |
1655 | /* PIC Interrupts */ | |
1656 | if ((mask & (TX_PIC_INTR | RX_PIC_INTR))) { | |
1657 | /* Enable PIC Intrs in the general intr mask register */ | |
1658 | val64 = TXPIC_INT_M | PIC_RX_INT_M; | |
1659 | if (flag == ENABLE_INTRS) { | |
1660 | temp64 = readq(&bar0->general_int_mask); | |
1661 | temp64 &= ~((u64) val64); | |
1662 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1663 | /* |
a371a07d | 1664 | * If Hercules adapter enable GPIO otherwise |
b41477f3 | 1665 | * disable all PCIX, Flash, MDIO, IIC and GPIO |
20346722 K |
1666 | * interrupts for now. |
1667 | * TODO | |
1da177e4 | 1668 | */ |
a371a07d K |
1669 | if (s2io_link_fault_indication(nic) == |
1670 | LINK_UP_DOWN_INTERRUPT ) { | |
1671 | temp64 = readq(&bar0->pic_int_mask); | |
1672 | temp64 &= ~((u64) PIC_INT_GPIO); | |
1673 | writeq(temp64, &bar0->pic_int_mask); | |
1674 | temp64 = readq(&bar0->gpio_int_mask); | |
1675 | temp64 &= ~((u64) GPIO_INT_MASK_LINK_UP); | |
1676 | writeq(temp64, &bar0->gpio_int_mask); | |
1677 | } else { | |
1678 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1679 | } | |
20346722 | 1680 | /* |
1da177e4 LT |
1681 | * No MSI Support is available presently, so TTI and |
1682 | * RTI interrupts are also disabled. | |
1683 | */ | |
1684 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1685 | /* |
1686 | * Disable PIC Intrs in the general | |
1687 | * intr mask register | |
1da177e4 LT |
1688 | */ |
1689 | writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask); | |
1690 | temp64 = readq(&bar0->general_int_mask); | |
1691 | val64 |= temp64; | |
1692 | writeq(val64, &bar0->general_int_mask); | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | /* DMA Interrupts */ | |
1697 | /* Enabling/Disabling Tx DMA interrupts */ | |
1698 | if (mask & TX_DMA_INTR) { | |
1699 | /* Enable TxDMA Intrs in the general intr mask register */ | |
1700 | val64 = TXDMA_INT_M; | |
1701 | if (flag == ENABLE_INTRS) { | |
1702 | temp64 = readq(&bar0->general_int_mask); | |
1703 | temp64 &= ~((u64) val64); | |
1704 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1705 | /* |
1706 | * Keep all interrupts other than PFC interrupt | |
1da177e4 LT |
1707 | * and PCC interrupt disabled in DMA level. |
1708 | */ | |
1709 | val64 = DISABLE_ALL_INTRS & ~(TXDMA_PFC_INT_M | | |
1710 | TXDMA_PCC_INT_M); | |
1711 | writeq(val64, &bar0->txdma_int_mask); | |
20346722 K |
1712 | /* |
1713 | * Enable only the MISC error 1 interrupt in PFC block | |
1da177e4 LT |
1714 | */ |
1715 | val64 = DISABLE_ALL_INTRS & (~PFC_MISC_ERR_1); | |
1716 | writeq(val64, &bar0->pfc_err_mask); | |
20346722 K |
1717 | /* |
1718 | * Enable only the FB_ECC error interrupt in PCC block | |
1da177e4 LT |
1719 | */ |
1720 | val64 = DISABLE_ALL_INTRS & (~PCC_FB_ECC_ERR); | |
1721 | writeq(val64, &bar0->pcc_err_mask); | |
1722 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1723 | /* |
1724 | * Disable TxDMA Intrs in the general intr mask | |
1725 | * register | |
1da177e4 LT |
1726 | */ |
1727 | writeq(DISABLE_ALL_INTRS, &bar0->txdma_int_mask); | |
1728 | writeq(DISABLE_ALL_INTRS, &bar0->pfc_err_mask); | |
1729 | temp64 = readq(&bar0->general_int_mask); | |
1730 | val64 |= temp64; | |
1731 | writeq(val64, &bar0->general_int_mask); | |
1732 | } | |
1733 | } | |
1734 | ||
1735 | /* Enabling/Disabling Rx DMA interrupts */ | |
1736 | if (mask & RX_DMA_INTR) { | |
1737 | /* Enable RxDMA Intrs in the general intr mask register */ | |
1738 | val64 = RXDMA_INT_M; | |
1739 | if (flag == ENABLE_INTRS) { | |
1740 | temp64 = readq(&bar0->general_int_mask); | |
1741 | temp64 &= ~((u64) val64); | |
1742 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1743 | /* |
1744 | * All RxDMA block interrupts are disabled for now | |
1745 | * TODO | |
1da177e4 LT |
1746 | */ |
1747 | writeq(DISABLE_ALL_INTRS, &bar0->rxdma_int_mask); | |
1748 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1749 | /* |
1750 | * Disable RxDMA Intrs in the general intr mask | |
1751 | * register | |
1da177e4 LT |
1752 | */ |
1753 | writeq(DISABLE_ALL_INTRS, &bar0->rxdma_int_mask); | |
1754 | temp64 = readq(&bar0->general_int_mask); | |
1755 | val64 |= temp64; | |
1756 | writeq(val64, &bar0->general_int_mask); | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | /* MAC Interrupts */ | |
1761 | /* Enabling/Disabling MAC interrupts */ | |
1762 | if (mask & (TX_MAC_INTR | RX_MAC_INTR)) { | |
1763 | val64 = TXMAC_INT_M | RXMAC_INT_M; | |
1764 | if (flag == ENABLE_INTRS) { | |
1765 | temp64 = readq(&bar0->general_int_mask); | |
1766 | temp64 &= ~((u64) val64); | |
1767 | writeq(temp64, &bar0->general_int_mask); | |
20346722 K |
1768 | /* |
1769 | * All MAC block error interrupts are disabled for now | |
1da177e4 LT |
1770 | * TODO |
1771 | */ | |
1da177e4 | 1772 | } else if (flag == DISABLE_INTRS) { |
20346722 K |
1773 | /* |
1774 | * Disable MAC Intrs in the general intr mask register | |
1da177e4 LT |
1775 | */ |
1776 | writeq(DISABLE_ALL_INTRS, &bar0->mac_int_mask); | |
1777 | writeq(DISABLE_ALL_INTRS, | |
1778 | &bar0->mac_rmac_err_mask); | |
1779 | ||
1780 | temp64 = readq(&bar0->general_int_mask); | |
1781 | val64 |= temp64; | |
1782 | writeq(val64, &bar0->general_int_mask); | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | /* XGXS Interrupts */ | |
1787 | if (mask & (TX_XGXS_INTR | RX_XGXS_INTR)) { | |
1788 | val64 = TXXGXS_INT_M | RXXGXS_INT_M; | |
1789 | if (flag == ENABLE_INTRS) { | |
1790 | temp64 = readq(&bar0->general_int_mask); | |
1791 | temp64 &= ~((u64) val64); | |
1792 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1793 | /* |
1da177e4 | 1794 | * All XGXS block error interrupts are disabled for now |
20346722 | 1795 | * TODO |
1da177e4 LT |
1796 | */ |
1797 | writeq(DISABLE_ALL_INTRS, &bar0->xgxs_int_mask); | |
1798 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1799 | /* |
1800 | * Disable MC Intrs in the general intr mask register | |
1da177e4 LT |
1801 | */ |
1802 | writeq(DISABLE_ALL_INTRS, &bar0->xgxs_int_mask); | |
1803 | temp64 = readq(&bar0->general_int_mask); | |
1804 | val64 |= temp64; | |
1805 | writeq(val64, &bar0->general_int_mask); | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | /* Memory Controller(MC) interrupts */ | |
1810 | if (mask & MC_INTR) { | |
1811 | val64 = MC_INT_M; | |
1812 | if (flag == ENABLE_INTRS) { | |
1813 | temp64 = readq(&bar0->general_int_mask); | |
1814 | temp64 &= ~((u64) val64); | |
1815 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1816 | /* |
5e25b9dd | 1817 | * Enable all MC Intrs. |
1da177e4 | 1818 | */ |
5e25b9dd K |
1819 | writeq(0x0, &bar0->mc_int_mask); |
1820 | writeq(0x0, &bar0->mc_err_mask); | |
1da177e4 LT |
1821 | } else if (flag == DISABLE_INTRS) { |
1822 | /* | |
1823 | * Disable MC Intrs in the general intr mask register | |
1824 | */ | |
1825 | writeq(DISABLE_ALL_INTRS, &bar0->mc_int_mask); | |
1826 | temp64 = readq(&bar0->general_int_mask); | |
1827 | val64 |= temp64; | |
1828 | writeq(val64, &bar0->general_int_mask); | |
1829 | } | |
1830 | } | |
1831 | ||
1832 | ||
1833 | /* Tx traffic interrupts */ | |
1834 | if (mask & TX_TRAFFIC_INTR) { | |
1835 | val64 = TXTRAFFIC_INT_M; | |
1836 | if (flag == ENABLE_INTRS) { | |
1837 | temp64 = readq(&bar0->general_int_mask); | |
1838 | temp64 &= ~((u64) val64); | |
1839 | writeq(temp64, &bar0->general_int_mask); | |
20346722 | 1840 | /* |
1da177e4 | 1841 | * Enable all the Tx side interrupts |
20346722 | 1842 | * writing 0 Enables all 64 TX interrupt levels |
1da177e4 LT |
1843 | */ |
1844 | writeq(0x0, &bar0->tx_traffic_mask); | |
1845 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1846 | /* |
1847 | * Disable Tx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1848 | * register. |
1849 | */ | |
1850 | writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask); | |
1851 | temp64 = readq(&bar0->general_int_mask); | |
1852 | val64 |= temp64; | |
1853 | writeq(val64, &bar0->general_int_mask); | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | /* Rx traffic interrupts */ | |
1858 | if (mask & RX_TRAFFIC_INTR) { | |
1859 | val64 = RXTRAFFIC_INT_M; | |
1860 | if (flag == ENABLE_INTRS) { | |
1861 | temp64 = readq(&bar0->general_int_mask); | |
1862 | temp64 &= ~((u64) val64); | |
1863 | writeq(temp64, &bar0->general_int_mask); | |
1864 | /* writing 0 Enables all 8 RX interrupt levels */ | |
1865 | writeq(0x0, &bar0->rx_traffic_mask); | |
1866 | } else if (flag == DISABLE_INTRS) { | |
20346722 K |
1867 | /* |
1868 | * Disable Rx Traffic Intrs in the general intr mask | |
1da177e4 LT |
1869 | * register. |
1870 | */ | |
1871 | writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask); | |
1872 | temp64 = readq(&bar0->general_int_mask); | |
1873 | val64 |= temp64; | |
1874 | writeq(val64, &bar0->general_int_mask); | |
1875 | } | |
1876 | } | |
1877 | } | |
1878 | ||
541ae68f | 1879 | static int check_prc_pcc_state(u64 val64, int flag, int rev_id, int herc) |
20346722 K |
1880 | { |
1881 | int ret = 0; | |
1882 | ||
1883 | if (flag == FALSE) { | |
541ae68f | 1884 | if ((!herc && (rev_id >= 4)) || herc) { |
5e25b9dd K |
1885 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) && |
1886 | ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1887 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
1888 | ret = 1; | |
1889 | } | |
541ae68f | 1890 | }else { |
5e25b9dd K |
1891 | if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) && |
1892 | ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1893 | ADAPTER_STATUS_RC_PRC_QUIESCENT)) { | |
1894 | ret = 1; | |
1895 | } | |
20346722 K |
1896 | } |
1897 | } else { | |
541ae68f | 1898 | if ((!herc && (rev_id >= 4)) || herc) { |
5e25b9dd K |
1899 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) == |
1900 | ADAPTER_STATUS_RMAC_PCC_IDLE) && | |
1901 | (!(val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) || | |
1902 | ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1903 | ADAPTER_STATUS_RC_PRC_QUIESCENT))) { | |
1904 | ret = 1; | |
1905 | } | |
1906 | } else { | |
1907 | if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) == | |
1908 | ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) && | |
1909 | (!(val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) || | |
1910 | ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) == | |
1911 | ADAPTER_STATUS_RC_PRC_QUIESCENT))) { | |
1912 | ret = 1; | |
1913 | } | |
20346722 K |
1914 | } |
1915 | } | |
1916 | ||
1917 | return ret; | |
1918 | } | |
1919 | /** | |
1920 | * verify_xena_quiescence - Checks whether the H/W is ready | |
1da177e4 LT |
1921 | * @val64 : Value read from adapter status register. |
1922 | * @flag : indicates if the adapter enable bit was ever written once | |
1923 | * before. | |
1924 | * Description: Returns whether the H/W is ready to go or not. Depending | |
20346722 | 1925 | * on whether adapter enable bit was written or not the comparison |
1da177e4 LT |
1926 | * differs and the calling function passes the input argument flag to |
1927 | * indicate this. | |
20346722 | 1928 | * Return: 1 If xena is quiescence |
1da177e4 LT |
1929 | * 0 If Xena is not quiescence |
1930 | */ | |
1931 | ||
20346722 | 1932 | static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag) |
1da177e4 | 1933 | { |
541ae68f | 1934 | int ret = 0, herc; |
1da177e4 | 1935 | u64 tmp64 = ~((u64) val64); |
5e25b9dd | 1936 | int rev_id = get_xena_rev_id(sp->pdev); |
1da177e4 | 1937 | |
541ae68f | 1938 | herc = (sp->device_type == XFRAME_II_DEVICE); |
1da177e4 LT |
1939 | if (! |
1940 | (tmp64 & | |
1941 | (ADAPTER_STATUS_TDMA_READY | ADAPTER_STATUS_RDMA_READY | | |
1942 | ADAPTER_STATUS_PFC_READY | ADAPTER_STATUS_TMAC_BUF_EMPTY | | |
1943 | ADAPTER_STATUS_PIC_QUIESCENT | ADAPTER_STATUS_MC_DRAM_READY | | |
1944 | ADAPTER_STATUS_MC_QUEUES_READY | ADAPTER_STATUS_M_PLL_LOCK | | |
1945 | ADAPTER_STATUS_P_PLL_LOCK))) { | |
541ae68f | 1946 | ret = check_prc_pcc_state(val64, flag, rev_id, herc); |
1da177e4 LT |
1947 | } |
1948 | ||
1949 | return ret; | |
1950 | } | |
1951 | ||
1952 | /** | |
1953 | * fix_mac_address - Fix for Mac addr problem on Alpha platforms | |
1954 | * @sp: Pointer to device specifc structure | |
20346722 | 1955 | * Description : |
1da177e4 LT |
1956 | * New procedure to clear mac address reading problems on Alpha platforms |
1957 | * | |
1958 | */ | |
1959 | ||
ac1f60db | 1960 | static void fix_mac_address(nic_t * sp) |
1da177e4 LT |
1961 | { |
1962 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
1963 | u64 val64; | |
1964 | int i = 0; | |
1965 | ||
1966 | while (fix_mac[i] != END_SIGN) { | |
1967 | writeq(fix_mac[i++], &bar0->gpio_control); | |
20346722 | 1968 | udelay(10); |
1da177e4 LT |
1969 | val64 = readq(&bar0->gpio_control); |
1970 | } | |
1971 | } | |
1972 | ||
1973 | /** | |
20346722 | 1974 | * start_nic - Turns the device on |
1da177e4 | 1975 | * @nic : device private variable. |
20346722 K |
1976 | * Description: |
1977 | * This function actually turns the device on. Before this function is | |
1978 | * called,all Registers are configured from their reset states | |
1979 | * and shared memory is allocated but the NIC is still quiescent. On | |
1da177e4 LT |
1980 | * calling this function, the device interrupts are cleared and the NIC is |
1981 | * literally switched on by writing into the adapter control register. | |
20346722 | 1982 | * Return Value: |
1da177e4 LT |
1983 | * SUCCESS on success and -1 on failure. |
1984 | */ | |
1985 | ||
1986 | static int start_nic(struct s2io_nic *nic) | |
1987 | { | |
1988 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
1989 | struct net_device *dev = nic->dev; | |
1990 | register u64 val64 = 0; | |
20346722 | 1991 | u16 subid, i; |
1da177e4 LT |
1992 | mac_info_t *mac_control; |
1993 | struct config_param *config; | |
1994 | ||
1995 | mac_control = &nic->mac_control; | |
1996 | config = &nic->config; | |
1997 | ||
1998 | /* PRC Initialization and configuration */ | |
1999 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 | 2000 | writeq((u64) mac_control->rings[i].rx_blocks[0].block_dma_addr, |
1da177e4 LT |
2001 | &bar0->prc_rxd0_n[i]); |
2002 | ||
2003 | val64 = readq(&bar0->prc_ctrl_n[i]); | |
b6e3f982 K |
2004 | if (nic->config.bimodal) |
2005 | val64 |= PRC_CTRL_BIMODAL_INTERRUPT; | |
da6971d8 AR |
2006 | if (nic->rxd_mode == RXD_MODE_1) |
2007 | val64 |= PRC_CTRL_RC_ENABLED; | |
2008 | else | |
2009 | val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3; | |
863c11a9 AR |
2010 | if (nic->device_type == XFRAME_II_DEVICE) |
2011 | val64 |= PRC_CTRL_GROUP_READS; | |
2012 | val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF); | |
2013 | val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000); | |
1da177e4 LT |
2014 | writeq(val64, &bar0->prc_ctrl_n[i]); |
2015 | } | |
2016 | ||
da6971d8 AR |
2017 | if (nic->rxd_mode == RXD_MODE_3B) { |
2018 | /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */ | |
2019 | val64 = readq(&bar0->rx_pa_cfg); | |
2020 | val64 |= RX_PA_CFG_IGNORE_L2_ERR; | |
2021 | writeq(val64, &bar0->rx_pa_cfg); | |
2022 | } | |
1da177e4 | 2023 | |
20346722 | 2024 | /* |
1da177e4 LT |
2025 | * Enabling MC-RLDRAM. After enabling the device, we timeout |
2026 | * for around 100ms, which is approximately the time required | |
2027 | * for the device to be ready for operation. | |
2028 | */ | |
2029 | val64 = readq(&bar0->mc_rldram_mrs); | |
2030 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE; | |
2031 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
2032 | val64 = readq(&bar0->mc_rldram_mrs); | |
2033 | ||
20346722 | 2034 | msleep(100); /* Delay by around 100 ms. */ |
1da177e4 LT |
2035 | |
2036 | /* Enabling ECC Protection. */ | |
2037 | val64 = readq(&bar0->adapter_control); | |
2038 | val64 &= ~ADAPTER_ECC_EN; | |
2039 | writeq(val64, &bar0->adapter_control); | |
2040 | ||
20346722 K |
2041 | /* |
2042 | * Clearing any possible Link state change interrupts that | |
1da177e4 LT |
2043 | * could have popped up just before Enabling the card. |
2044 | */ | |
2045 | val64 = readq(&bar0->mac_rmac_err_reg); | |
2046 | if (val64) | |
2047 | writeq(val64, &bar0->mac_rmac_err_reg); | |
2048 | ||
20346722 K |
2049 | /* |
2050 | * Verify if the device is ready to be enabled, if so enable | |
1da177e4 LT |
2051 | * it. |
2052 | */ | |
2053 | val64 = readq(&bar0->adapter_status); | |
20346722 | 2054 | if (!verify_xena_quiescence(nic, val64, nic->device_enabled_once)) { |
1da177e4 LT |
2055 | DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name); |
2056 | DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n", | |
2057 | (unsigned long long) val64); | |
2058 | return FAILURE; | |
2059 | } | |
2060 | ||
20346722 | 2061 | /* |
1da177e4 | 2062 | * With some switches, link might be already up at this point. |
20346722 K |
2063 | * Because of this weird behavior, when we enable laser, |
2064 | * we may not get link. We need to handle this. We cannot | |
2065 | * figure out which switch is misbehaving. So we are forced to | |
2066 | * make a global change. | |
1da177e4 LT |
2067 | */ |
2068 | ||
2069 | /* Enabling Laser. */ | |
2070 | val64 = readq(&bar0->adapter_control); | |
2071 | val64 |= ADAPTER_EOI_TX_ON; | |
2072 | writeq(val64, &bar0->adapter_control); | |
2073 | ||
c92ca04b AR |
2074 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
2075 | /* | |
2076 | * Dont see link state interrupts initally on some switches, | |
2077 | * so directly scheduling the link state task here. | |
2078 | */ | |
2079 | schedule_work(&nic->set_link_task); | |
2080 | } | |
1da177e4 LT |
2081 | /* SXE-002: Initialize link and activity LED */ |
2082 | subid = nic->pdev->subsystem_device; | |
541ae68f K |
2083 | if (((subid & 0xFF) >= 0x07) && |
2084 | (nic->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
2085 | val64 = readq(&bar0->gpio_control); |
2086 | val64 |= 0x0000800000000000ULL; | |
2087 | writeq(val64, &bar0->gpio_control); | |
2088 | val64 = 0x0411040400000000ULL; | |
509a2671 | 2089 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
2090 | } |
2091 | ||
1da177e4 LT |
2092 | return SUCCESS; |
2093 | } | |
fed5eccd AR |
2094 | /** |
2095 | * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb | |
2096 | */ | |
2097 | static struct sk_buff *s2io_txdl_getskb(fifo_info_t *fifo_data, TxD_t *txdlp, int get_off) | |
2098 | { | |
2099 | nic_t *nic = fifo_data->nic; | |
2100 | struct sk_buff *skb; | |
2101 | TxD_t *txds; | |
2102 | u16 j, frg_cnt; | |
2103 | ||
2104 | txds = txdlp; | |
26b7625c | 2105 | if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) { |
fed5eccd AR |
2106 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2107 | txds->Buffer_Pointer, sizeof(u64), | |
2108 | PCI_DMA_TODEVICE); | |
2109 | txds++; | |
2110 | } | |
2111 | ||
2112 | skb = (struct sk_buff *) ((unsigned long) | |
2113 | txds->Host_Control); | |
2114 | if (!skb) { | |
2115 | memset(txdlp, 0, (sizeof(TxD_t) * fifo_data->max_txds)); | |
2116 | return NULL; | |
2117 | } | |
2118 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2119 | txds->Buffer_Pointer, | |
2120 | skb->len - skb->data_len, | |
2121 | PCI_DMA_TODEVICE); | |
2122 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
2123 | if (frg_cnt) { | |
2124 | txds++; | |
2125 | for (j = 0; j < frg_cnt; j++, txds++) { | |
2126 | skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; | |
2127 | if (!txds->Buffer_Pointer) | |
2128 | break; | |
2129 | pci_unmap_page(nic->pdev, (dma_addr_t) | |
2130 | txds->Buffer_Pointer, | |
2131 | frag->size, PCI_DMA_TODEVICE); | |
2132 | } | |
2133 | } | |
b41477f3 | 2134 | memset(txdlp,0, (sizeof(TxD_t) * fifo_data->max_txds)); |
fed5eccd AR |
2135 | return(skb); |
2136 | } | |
1da177e4 | 2137 | |
20346722 K |
2138 | /** |
2139 | * free_tx_buffers - Free all queued Tx buffers | |
1da177e4 | 2140 | * @nic : device private variable. |
20346722 | 2141 | * Description: |
1da177e4 | 2142 | * Free all queued Tx buffers. |
20346722 | 2143 | * Return Value: void |
1da177e4 LT |
2144 | */ |
2145 | ||
2146 | static void free_tx_buffers(struct s2io_nic *nic) | |
2147 | { | |
2148 | struct net_device *dev = nic->dev; | |
2149 | struct sk_buff *skb; | |
2150 | TxD_t *txdp; | |
2151 | int i, j; | |
2152 | mac_info_t *mac_control; | |
2153 | struct config_param *config; | |
fed5eccd | 2154 | int cnt = 0; |
1da177e4 LT |
2155 | |
2156 | mac_control = &nic->mac_control; | |
2157 | config = &nic->config; | |
2158 | ||
2159 | for (i = 0; i < config->tx_fifo_num; i++) { | |
2160 | for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) { | |
20346722 | 2161 | txdp = (TxD_t *) mac_control->fifos[i].list_info[j]. |
1da177e4 | 2162 | list_virt_addr; |
fed5eccd AR |
2163 | skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j); |
2164 | if (skb) { | |
2165 | dev_kfree_skb(skb); | |
2166 | cnt++; | |
1da177e4 | 2167 | } |
1da177e4 LT |
2168 | } |
2169 | DBG_PRINT(INTR_DBG, | |
2170 | "%s:forcibly freeing %d skbs on FIFO%d\n", | |
2171 | dev->name, cnt, i); | |
20346722 K |
2172 | mac_control->fifos[i].tx_curr_get_info.offset = 0; |
2173 | mac_control->fifos[i].tx_curr_put_info.offset = 0; | |
1da177e4 LT |
2174 | } |
2175 | } | |
2176 | ||
20346722 K |
2177 | /** |
2178 | * stop_nic - To stop the nic | |
1da177e4 | 2179 | * @nic ; device private variable. |
20346722 K |
2180 | * Description: |
2181 | * This function does exactly the opposite of what the start_nic() | |
1da177e4 LT |
2182 | * function does. This function is called to stop the device. |
2183 | * Return Value: | |
2184 | * void. | |
2185 | */ | |
2186 | ||
2187 | static void stop_nic(struct s2io_nic *nic) | |
2188 | { | |
2189 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
2190 | register u64 val64 = 0; | |
5d3213cc | 2191 | u16 interruptible; |
1da177e4 LT |
2192 | mac_info_t *mac_control; |
2193 | struct config_param *config; | |
2194 | ||
2195 | mac_control = &nic->mac_control; | |
2196 | config = &nic->config; | |
2197 | ||
2198 | /* Disable all interrupts */ | |
e960fc5c | 2199 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; |
a371a07d K |
2200 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; |
2201 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
1da177e4 LT |
2202 | en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS); |
2203 | ||
5d3213cc AR |
2204 | /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */ |
2205 | val64 = readq(&bar0->adapter_control); | |
2206 | val64 &= ~(ADAPTER_CNTL_EN); | |
2207 | writeq(val64, &bar0->adapter_control); | |
1da177e4 LT |
2208 | } |
2209 | ||
26df54bf | 2210 | static int fill_rxd_3buf(nic_t *nic, RxD_t *rxdp, struct sk_buff *skb) |
da6971d8 AR |
2211 | { |
2212 | struct net_device *dev = nic->dev; | |
2213 | struct sk_buff *frag_list; | |
50eb8006 | 2214 | void *tmp; |
da6971d8 AR |
2215 | |
2216 | /* Buffer-1 receives L3/L4 headers */ | |
2217 | ((RxD3_t*)rxdp)->Buffer1_ptr = pci_map_single | |
2218 | (nic->pdev, skb->data, l3l4hdr_size + 4, | |
2219 | PCI_DMA_FROMDEVICE); | |
2220 | ||
2221 | /* skb_shinfo(skb)->frag_list will have L4 data payload */ | |
2222 | skb_shinfo(skb)->frag_list = dev_alloc_skb(dev->mtu + ALIGN_SIZE); | |
2223 | if (skb_shinfo(skb)->frag_list == NULL) { | |
2224 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n ", dev->name); | |
2225 | return -ENOMEM ; | |
2226 | } | |
2227 | frag_list = skb_shinfo(skb)->frag_list; | |
2228 | frag_list->next = NULL; | |
50eb8006 JG |
2229 | tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1); |
2230 | frag_list->data = tmp; | |
2231 | frag_list->tail = tmp; | |
da6971d8 AR |
2232 | |
2233 | /* Buffer-2 receives L4 data payload */ | |
2234 | ((RxD3_t*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev, | |
2235 | frag_list->data, dev->mtu, | |
2236 | PCI_DMA_FROMDEVICE); | |
2237 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); | |
2238 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); | |
2239 | ||
2240 | return SUCCESS; | |
2241 | } | |
2242 | ||
20346722 K |
2243 | /** |
2244 | * fill_rx_buffers - Allocates the Rx side skbs | |
1da177e4 | 2245 | * @nic: device private variable |
20346722 K |
2246 | * @ring_no: ring number |
2247 | * Description: | |
1da177e4 LT |
2248 | * The function allocates Rx side skbs and puts the physical |
2249 | * address of these buffers into the RxD buffer pointers, so that the NIC | |
2250 | * can DMA the received frame into these locations. | |
2251 | * The NIC supports 3 receive modes, viz | |
2252 | * 1. single buffer, | |
2253 | * 2. three buffer and | |
2254 | * 3. Five buffer modes. | |
20346722 K |
2255 | * Each mode defines how many fragments the received frame will be split |
2256 | * up into by the NIC. The frame is split into L3 header, L4 Header, | |
1da177e4 LT |
2257 | * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself |
2258 | * is split into 3 fragments. As of now only single buffer mode is | |
2259 | * supported. | |
2260 | * Return Value: | |
2261 | * SUCCESS on success or an appropriate -ve value on failure. | |
2262 | */ | |
2263 | ||
ac1f60db | 2264 | static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) |
1da177e4 LT |
2265 | { |
2266 | struct net_device *dev = nic->dev; | |
2267 | struct sk_buff *skb; | |
2268 | RxD_t *rxdp; | |
2269 | int off, off1, size, block_no, block_no1; | |
1da177e4 | 2270 | u32 alloc_tab = 0; |
20346722 | 2271 | u32 alloc_cnt; |
1da177e4 LT |
2272 | mac_info_t *mac_control; |
2273 | struct config_param *config; | |
20346722 | 2274 | u64 tmp; |
1da177e4 | 2275 | buffAdd_t *ba; |
1da177e4 LT |
2276 | #ifndef CONFIG_S2IO_NAPI |
2277 | unsigned long flags; | |
2278 | #endif | |
303bcb4b | 2279 | RxD_t *first_rxdp = NULL; |
1da177e4 LT |
2280 | |
2281 | mac_control = &nic->mac_control; | |
2282 | config = &nic->config; | |
20346722 K |
2283 | alloc_cnt = mac_control->rings[ring_no].pkt_cnt - |
2284 | atomic_read(&nic->rx_bufs_left[ring_no]); | |
1da177e4 | 2285 | |
5d3213cc | 2286 | block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index; |
863c11a9 | 2287 | off1 = mac_control->rings[ring_no].rx_curr_get_info.offset; |
1da177e4 | 2288 | while (alloc_tab < alloc_cnt) { |
20346722 | 2289 | block_no = mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2290 | block_index; |
20346722 | 2291 | off = mac_control->rings[ring_no].rx_curr_put_info.offset; |
1da177e4 | 2292 | |
da6971d8 AR |
2293 | rxdp = mac_control->rings[ring_no]. |
2294 | rx_blocks[block_no].rxds[off].virt_addr; | |
2295 | ||
2296 | if ((block_no == block_no1) && (off == off1) && | |
2297 | (rxdp->Host_Control)) { | |
2298 | DBG_PRINT(INTR_DBG, "%s: Get and Put", | |
2299 | dev->name); | |
1da177e4 LT |
2300 | DBG_PRINT(INTR_DBG, " info equated\n"); |
2301 | goto end; | |
2302 | } | |
da6971d8 | 2303 | if (off && (off == rxd_count[nic->rxd_mode])) { |
20346722 | 2304 | mac_control->rings[ring_no].rx_curr_put_info. |
1da177e4 | 2305 | block_index++; |
da6971d8 AR |
2306 | if (mac_control->rings[ring_no].rx_curr_put_info. |
2307 | block_index == mac_control->rings[ring_no]. | |
2308 | block_count) | |
2309 | mac_control->rings[ring_no].rx_curr_put_info. | |
2310 | block_index = 0; | |
2311 | block_no = mac_control->rings[ring_no]. | |
2312 | rx_curr_put_info.block_index; | |
2313 | if (off == rxd_count[nic->rxd_mode]) | |
2314 | off = 0; | |
20346722 | 2315 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 AR |
2316 | offset = off; |
2317 | rxdp = mac_control->rings[ring_no]. | |
2318 | rx_blocks[block_no].block_virt_addr; | |
1da177e4 LT |
2319 | DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n", |
2320 | dev->name, rxdp); | |
2321 | } | |
2322 | #ifndef CONFIG_S2IO_NAPI | |
2323 | spin_lock_irqsave(&nic->put_lock, flags); | |
20346722 | 2324 | mac_control->rings[ring_no].put_pos = |
da6971d8 | 2325 | (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; |
1da177e4 LT |
2326 | spin_unlock_irqrestore(&nic->put_lock, flags); |
2327 | #endif | |
da6971d8 AR |
2328 | if ((rxdp->Control_1 & RXD_OWN_XENA) && |
2329 | ((nic->rxd_mode >= RXD_MODE_3A) && | |
2330 | (rxdp->Control_2 & BIT(0)))) { | |
20346722 | 2331 | mac_control->rings[ring_no].rx_curr_put_info. |
da6971d8 | 2332 | offset = off; |
1da177e4 LT |
2333 | goto end; |
2334 | } | |
da6971d8 AR |
2335 | /* calculate size of skb based on ring mode */ |
2336 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
2337 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
2338 | if (nic->rxd_mode == RXD_MODE_1) | |
2339 | size += NET_IP_ALIGN; | |
2340 | else if (nic->rxd_mode == RXD_MODE_3B) | |
2341 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
2342 | else | |
2343 | size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; | |
1da177e4 | 2344 | |
da6971d8 AR |
2345 | /* allocate skb */ |
2346 | skb = dev_alloc_skb(size); | |
2347 | if(!skb) { | |
1da177e4 LT |
2348 | DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name); |
2349 | DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n"); | |
303bcb4b K |
2350 | if (first_rxdp) { |
2351 | wmb(); | |
2352 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2353 | } | |
da6971d8 AR |
2354 | return -ENOMEM ; |
2355 | } | |
2356 | if (nic->rxd_mode == RXD_MODE_1) { | |
2357 | /* 1 buffer mode - normal operation mode */ | |
2358 | memset(rxdp, 0, sizeof(RxD1_t)); | |
2359 | skb_reserve(skb, NET_IP_ALIGN); | |
2360 | ((RxD1_t*)rxdp)->Buffer0_ptr = pci_map_single | |
863c11a9 AR |
2361 | (nic->pdev, skb->data, size - NET_IP_ALIGN, |
2362 | PCI_DMA_FROMDEVICE); | |
2363 | rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); | |
da6971d8 AR |
2364 | |
2365 | } else if (nic->rxd_mode >= RXD_MODE_3A) { | |
2366 | /* | |
2367 | * 2 or 3 buffer mode - | |
2368 | * Both 2 buffer mode and 3 buffer mode provides 128 | |
2369 | * byte aligned receive buffers. | |
2370 | * | |
2371 | * 3 buffer mode provides header separation where in | |
2372 | * skb->data will have L3/L4 headers where as | |
2373 | * skb_shinfo(skb)->frag_list will have the L4 data | |
2374 | * payload | |
2375 | */ | |
2376 | ||
2377 | memset(rxdp, 0, sizeof(RxD3_t)); | |
2378 | ba = &mac_control->rings[ring_no].ba[block_no][off]; | |
2379 | skb_reserve(skb, BUF0_LEN); | |
2380 | tmp = (u64)(unsigned long) skb->data; | |
2381 | tmp += ALIGN_SIZE; | |
2382 | tmp &= ~ALIGN_SIZE; | |
2383 | skb->data = (void *) (unsigned long)tmp; | |
2384 | skb->tail = (void *) (unsigned long)tmp; | |
2385 | ||
75c30b13 AR |
2386 | if (!(((RxD3_t*)rxdp)->Buffer0_ptr)) |
2387 | ((RxD3_t*)rxdp)->Buffer0_ptr = | |
2388 | pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, | |
da6971d8 | 2389 | PCI_DMA_FROMDEVICE); |
75c30b13 AR |
2390 | else |
2391 | pci_dma_sync_single_for_device(nic->pdev, | |
2392 | (dma_addr_t) ((RxD3_t*)rxdp)->Buffer0_ptr, | |
2393 | BUF0_LEN, PCI_DMA_FROMDEVICE); | |
da6971d8 AR |
2394 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); |
2395 | if (nic->rxd_mode == RXD_MODE_3B) { | |
2396 | /* Two buffer mode */ | |
2397 | ||
2398 | /* | |
2399 | * Buffer2 will have L3/L4 header plus | |
2400 | * L4 payload | |
2401 | */ | |
2402 | ((RxD3_t*)rxdp)->Buffer2_ptr = pci_map_single | |
2403 | (nic->pdev, skb->data, dev->mtu + 4, | |
2404 | PCI_DMA_FROMDEVICE); | |
2405 | ||
75c30b13 AR |
2406 | /* Buffer-1 will be dummy buffer. Not used */ |
2407 | if (!(((RxD3_t*)rxdp)->Buffer1_ptr)) { | |
2408 | ((RxD3_t*)rxdp)->Buffer1_ptr = | |
2409 | pci_map_single(nic->pdev, | |
2410 | ba->ba_1, BUF1_LEN, | |
2411 | PCI_DMA_FROMDEVICE); | |
2412 | } | |
da6971d8 AR |
2413 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); |
2414 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3 | |
2415 | (dev->mtu + 4); | |
2416 | } else { | |
2417 | /* 3 buffer mode */ | |
2418 | if (fill_rxd_3buf(nic, rxdp, skb) == -ENOMEM) { | |
2419 | dev_kfree_skb_irq(skb); | |
2420 | if (first_rxdp) { | |
2421 | wmb(); | |
2422 | first_rxdp->Control_1 |= | |
2423 | RXD_OWN_XENA; | |
2424 | } | |
2425 | return -ENOMEM ; | |
2426 | } | |
2427 | } | |
2428 | rxdp->Control_2 |= BIT(0); | |
1da177e4 | 2429 | } |
1da177e4 | 2430 | rxdp->Host_Control = (unsigned long) (skb); |
303bcb4b K |
2431 | if (alloc_tab & ((1 << rxsync_frequency) - 1)) |
2432 | rxdp->Control_1 |= RXD_OWN_XENA; | |
1da177e4 | 2433 | off++; |
da6971d8 AR |
2434 | if (off == (rxd_count[nic->rxd_mode] + 1)) |
2435 | off = 0; | |
20346722 | 2436 | mac_control->rings[ring_no].rx_curr_put_info.offset = off; |
20346722 | 2437 | |
da6971d8 | 2438 | rxdp->Control_2 |= SET_RXD_MARKER; |
303bcb4b K |
2439 | if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) { |
2440 | if (first_rxdp) { | |
2441 | wmb(); | |
2442 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2443 | } | |
2444 | first_rxdp = rxdp; | |
2445 | } | |
1da177e4 LT |
2446 | atomic_inc(&nic->rx_bufs_left[ring_no]); |
2447 | alloc_tab++; | |
2448 | } | |
2449 | ||
2450 | end: | |
303bcb4b K |
2451 | /* Transfer ownership of first descriptor to adapter just before |
2452 | * exiting. Before that, use memory barrier so that ownership | |
2453 | * and other fields are seen by adapter correctly. | |
2454 | */ | |
2455 | if (first_rxdp) { | |
2456 | wmb(); | |
2457 | first_rxdp->Control_1 |= RXD_OWN_XENA; | |
2458 | } | |
2459 | ||
1da177e4 LT |
2460 | return SUCCESS; |
2461 | } | |
2462 | ||
da6971d8 AR |
2463 | static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) |
2464 | { | |
2465 | struct net_device *dev = sp->dev; | |
2466 | int j; | |
2467 | struct sk_buff *skb; | |
2468 | RxD_t *rxdp; | |
2469 | mac_info_t *mac_control; | |
2470 | buffAdd_t *ba; | |
2471 | ||
2472 | mac_control = &sp->mac_control; | |
2473 | for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { | |
2474 | rxdp = mac_control->rings[ring_no]. | |
2475 | rx_blocks[blk].rxds[j].virt_addr; | |
2476 | skb = (struct sk_buff *) | |
2477 | ((unsigned long) rxdp->Host_Control); | |
2478 | if (!skb) { | |
2479 | continue; | |
2480 | } | |
2481 | if (sp->rxd_mode == RXD_MODE_1) { | |
2482 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2483 | ((RxD1_t*)rxdp)->Buffer0_ptr, | |
2484 | dev->mtu + | |
2485 | HEADER_ETHERNET_II_802_3_SIZE | |
2486 | + HEADER_802_2_SIZE + | |
2487 | HEADER_SNAP_SIZE, | |
2488 | PCI_DMA_FROMDEVICE); | |
2489 | memset(rxdp, 0, sizeof(RxD1_t)); | |
2490 | } else if(sp->rxd_mode == RXD_MODE_3B) { | |
2491 | ba = &mac_control->rings[ring_no]. | |
2492 | ba[blk][j]; | |
2493 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2494 | ((RxD3_t*)rxdp)->Buffer0_ptr, | |
2495 | BUF0_LEN, | |
2496 | PCI_DMA_FROMDEVICE); | |
2497 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2498 | ((RxD3_t*)rxdp)->Buffer1_ptr, | |
2499 | BUF1_LEN, | |
2500 | PCI_DMA_FROMDEVICE); | |
2501 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2502 | ((RxD3_t*)rxdp)->Buffer2_ptr, | |
2503 | dev->mtu + 4, | |
2504 | PCI_DMA_FROMDEVICE); | |
2505 | memset(rxdp, 0, sizeof(RxD3_t)); | |
2506 | } else { | |
2507 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2508 | ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN, | |
2509 | PCI_DMA_FROMDEVICE); | |
2510 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2511 | ((RxD3_t*)rxdp)->Buffer1_ptr, | |
2512 | l3l4hdr_size + 4, | |
2513 | PCI_DMA_FROMDEVICE); | |
2514 | pci_unmap_single(sp->pdev, (dma_addr_t) | |
2515 | ((RxD3_t*)rxdp)->Buffer2_ptr, dev->mtu, | |
2516 | PCI_DMA_FROMDEVICE); | |
2517 | memset(rxdp, 0, sizeof(RxD3_t)); | |
2518 | } | |
2519 | dev_kfree_skb(skb); | |
2520 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
2521 | } | |
2522 | } | |
2523 | ||
1da177e4 | 2524 | /** |
20346722 | 2525 | * free_rx_buffers - Frees all Rx buffers |
1da177e4 | 2526 | * @sp: device private variable. |
20346722 | 2527 | * Description: |
1da177e4 LT |
2528 | * This function will free all Rx buffers allocated by host. |
2529 | * Return Value: | |
2530 | * NONE. | |
2531 | */ | |
2532 | ||
2533 | static void free_rx_buffers(struct s2io_nic *sp) | |
2534 | { | |
2535 | struct net_device *dev = sp->dev; | |
da6971d8 | 2536 | int i, blk = 0, buf_cnt = 0; |
1da177e4 LT |
2537 | mac_info_t *mac_control; |
2538 | struct config_param *config; | |
1da177e4 LT |
2539 | |
2540 | mac_control = &sp->mac_control; | |
2541 | config = &sp->config; | |
2542 | ||
2543 | for (i = 0; i < config->rx_ring_num; i++) { | |
da6971d8 AR |
2544 | for (blk = 0; blk < rx_ring_sz[i]; blk++) |
2545 | free_rxd_blk(sp,i,blk); | |
1da177e4 | 2546 | |
20346722 K |
2547 | mac_control->rings[i].rx_curr_put_info.block_index = 0; |
2548 | mac_control->rings[i].rx_curr_get_info.block_index = 0; | |
2549 | mac_control->rings[i].rx_curr_put_info.offset = 0; | |
2550 | mac_control->rings[i].rx_curr_get_info.offset = 0; | |
1da177e4 LT |
2551 | atomic_set(&sp->rx_bufs_left[i], 0); |
2552 | DBG_PRINT(INIT_DBG, "%s:Freed 0x%x Rx Buffers on ring%d\n", | |
2553 | dev->name, buf_cnt, i); | |
2554 | } | |
2555 | } | |
2556 | ||
2557 | /** | |
2558 | * s2io_poll - Rx interrupt handler for NAPI support | |
2559 | * @dev : pointer to the device structure. | |
20346722 | 2560 | * @budget : The number of packets that were budgeted to be processed |
1da177e4 LT |
2561 | * during one pass through the 'Poll" function. |
2562 | * Description: | |
2563 | * Comes into picture only if NAPI support has been incorporated. It does | |
2564 | * the same thing that rx_intr_handler does, but not in a interrupt context | |
2565 | * also It will process only a given number of packets. | |
2566 | * Return value: | |
2567 | * 0 on success and 1 if there are No Rx packets to be processed. | |
2568 | */ | |
2569 | ||
20346722 | 2570 | #if defined(CONFIG_S2IO_NAPI) |
1da177e4 LT |
2571 | static int s2io_poll(struct net_device *dev, int *budget) |
2572 | { | |
2573 | nic_t *nic = dev->priv; | |
20346722 | 2574 | int pkt_cnt = 0, org_pkts_to_process; |
1da177e4 LT |
2575 | mac_info_t *mac_control; |
2576 | struct config_param *config; | |
509a2671 | 2577 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
863c11a9 | 2578 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
20346722 | 2579 | int i; |
1da177e4 | 2580 | |
7ba013ac | 2581 | atomic_inc(&nic->isr_cnt); |
1da177e4 LT |
2582 | mac_control = &nic->mac_control; |
2583 | config = &nic->config; | |
2584 | ||
20346722 K |
2585 | nic->pkts_to_process = *budget; |
2586 | if (nic->pkts_to_process > dev->quota) | |
2587 | nic->pkts_to_process = dev->quota; | |
2588 | org_pkts_to_process = nic->pkts_to_process; | |
1da177e4 | 2589 | |
1da177e4 | 2590 | writeq(val64, &bar0->rx_traffic_int); |
863c11a9 | 2591 | val64 = readl(&bar0->rx_traffic_int); |
1da177e4 LT |
2592 | |
2593 | for (i = 0; i < config->rx_ring_num; i++) { | |
20346722 K |
2594 | rx_intr_handler(&mac_control->rings[i]); |
2595 | pkt_cnt = org_pkts_to_process - nic->pkts_to_process; | |
2596 | if (!nic->pkts_to_process) { | |
2597 | /* Quota for the current iteration has been met */ | |
2598 | goto no_rx; | |
1da177e4 | 2599 | } |
1da177e4 LT |
2600 | } |
2601 | if (!pkt_cnt) | |
2602 | pkt_cnt = 1; | |
2603 | ||
2604 | dev->quota -= pkt_cnt; | |
2605 | *budget -= pkt_cnt; | |
2606 | netif_rx_complete(dev); | |
2607 | ||
2608 | for (i = 0; i < config->rx_ring_num; i++) { | |
2609 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2610 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2611 | DBG_PRINT(ERR_DBG, " in Rx Poll!!\n"); | |
2612 | break; | |
2613 | } | |
2614 | } | |
2615 | /* Re enable the Rx interrupts. */ | |
c92ca04b AR |
2616 | writeq(0x0, &bar0->rx_traffic_mask); |
2617 | val64 = readl(&bar0->rx_traffic_mask); | |
7ba013ac | 2618 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2619 | return 0; |
2620 | ||
20346722 | 2621 | no_rx: |
1da177e4 LT |
2622 | dev->quota -= pkt_cnt; |
2623 | *budget -= pkt_cnt; | |
2624 | ||
2625 | for (i = 0; i < config->rx_ring_num; i++) { | |
2626 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2627 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2628 | DBG_PRINT(ERR_DBG, " in Rx Poll!!\n"); | |
2629 | break; | |
2630 | } | |
2631 | } | |
7ba013ac | 2632 | atomic_dec(&nic->isr_cnt); |
1da177e4 LT |
2633 | return 1; |
2634 | } | |
20346722 K |
2635 | #endif |
2636 | ||
b41477f3 | 2637 | #ifdef CONFIG_NET_POLL_CONTROLLER |
612eff0e | 2638 | /** |
b41477f3 | 2639 | * s2io_netpoll - netpoll event handler entry point |
612eff0e BH |
2640 | * @dev : pointer to the device structure. |
2641 | * Description: | |
b41477f3 AR |
2642 | * This function will be called by upper layer to check for events on the |
2643 | * interface in situations where interrupts are disabled. It is used for | |
2644 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
2645 | * debugging over the network (example netdump in RedHat). | |
612eff0e | 2646 | */ |
612eff0e BH |
2647 | static void s2io_netpoll(struct net_device *dev) |
2648 | { | |
2649 | nic_t *nic = dev->priv; | |
2650 | mac_info_t *mac_control; | |
2651 | struct config_param *config; | |
2652 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
b41477f3 | 2653 | u64 val64 = 0xFFFFFFFFFFFFFFFFULL; |
612eff0e BH |
2654 | int i; |
2655 | ||
2656 | disable_irq(dev->irq); | |
2657 | ||
2658 | atomic_inc(&nic->isr_cnt); | |
2659 | mac_control = &nic->mac_control; | |
2660 | config = &nic->config; | |
2661 | ||
612eff0e | 2662 | writeq(val64, &bar0->rx_traffic_int); |
b41477f3 AR |
2663 | writeq(val64, &bar0->tx_traffic_int); |
2664 | ||
2665 | /* we need to free up the transmitted skbufs or else netpoll will | |
2666 | * run out of skbs and will fail and eventually netpoll application such | |
2667 | * as netdump will fail. | |
2668 | */ | |
2669 | for (i = 0; i < config->tx_fifo_num; i++) | |
2670 | tx_intr_handler(&mac_control->fifos[i]); | |
612eff0e | 2671 | |
b41477f3 | 2672 | /* check for received packet and indicate up to network */ |
612eff0e BH |
2673 | for (i = 0; i < config->rx_ring_num; i++) |
2674 | rx_intr_handler(&mac_control->rings[i]); | |
2675 | ||
2676 | for (i = 0; i < config->rx_ring_num; i++) { | |
2677 | if (fill_rx_buffers(nic, i) == -ENOMEM) { | |
2678 | DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); | |
2679 | DBG_PRINT(ERR_DBG, " in Rx Netpoll!!\n"); | |
2680 | break; | |
2681 | } | |
2682 | } | |
2683 | atomic_dec(&nic->isr_cnt); | |
2684 | enable_irq(dev->irq); | |
2685 | return; | |
2686 | } | |
2687 | #endif | |
2688 | ||
20346722 | 2689 | /** |
1da177e4 LT |
2690 | * rx_intr_handler - Rx interrupt handler |
2691 | * @nic: device private variable. | |
20346722 K |
2692 | * Description: |
2693 | * If the interrupt is because of a received frame or if the | |
1da177e4 | 2694 | * receive ring contains fresh as yet un-processed frames,this function is |
20346722 K |
2695 | * called. It picks out the RxD at which place the last Rx processing had |
2696 | * stopped and sends the skb to the OSM's Rx handler and then increments | |
1da177e4 LT |
2697 | * the offset. |
2698 | * Return Value: | |
2699 | * NONE. | |
2700 | */ | |
20346722 | 2701 | static void rx_intr_handler(ring_info_t *ring_data) |
1da177e4 | 2702 | { |
20346722 | 2703 | nic_t *nic = ring_data->nic; |
1da177e4 | 2704 | struct net_device *dev = (struct net_device *) nic->dev; |
da6971d8 | 2705 | int get_block, put_block, put_offset; |
1da177e4 LT |
2706 | rx_curr_get_info_t get_info, put_info; |
2707 | RxD_t *rxdp; | |
2708 | struct sk_buff *skb; | |
20346722 K |
2709 | #ifndef CONFIG_S2IO_NAPI |
2710 | int pkt_cnt = 0; | |
1da177e4 | 2711 | #endif |
7d3d0439 RA |
2712 | int i; |
2713 | ||
7ba013ac K |
2714 | spin_lock(&nic->rx_lock); |
2715 | if (atomic_read(&nic->card_state) == CARD_DOWN) { | |
776bd20f | 2716 | DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n", |
7ba013ac K |
2717 | __FUNCTION__, dev->name); |
2718 | spin_unlock(&nic->rx_lock); | |
776bd20f | 2719 | return; |
7ba013ac K |
2720 | } |
2721 | ||
20346722 K |
2722 | get_info = ring_data->rx_curr_get_info; |
2723 | get_block = get_info.block_index; | |
2724 | put_info = ring_data->rx_curr_put_info; | |
2725 | put_block = put_info.block_index; | |
da6971d8 | 2726 | rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr; |
20346722 K |
2727 | #ifndef CONFIG_S2IO_NAPI |
2728 | spin_lock(&nic->put_lock); | |
2729 | put_offset = ring_data->put_pos; | |
2730 | spin_unlock(&nic->put_lock); | |
2731 | #else | |
da6971d8 | 2732 | put_offset = (put_block * (rxd_count[nic->rxd_mode] + 1)) + |
20346722 K |
2733 | put_info.offset; |
2734 | #endif | |
da6971d8 AR |
2735 | while (RXD_IS_UP2DT(rxdp)) { |
2736 | /* If your are next to put index then it's FIFO full condition */ | |
2737 | if ((get_block == put_block) && | |
2738 | (get_info.offset + 1) == put_info.offset) { | |
75c30b13 | 2739 | DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); |
da6971d8 AR |
2740 | break; |
2741 | } | |
20346722 K |
2742 | skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); |
2743 | if (skb == NULL) { | |
2744 | DBG_PRINT(ERR_DBG, "%s: The skb is ", | |
2745 | dev->name); | |
2746 | DBG_PRINT(ERR_DBG, "Null in Rx Intr\n"); | |
7ba013ac | 2747 | spin_unlock(&nic->rx_lock); |
20346722 | 2748 | return; |
1da177e4 | 2749 | } |
da6971d8 AR |
2750 | if (nic->rxd_mode == RXD_MODE_1) { |
2751 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2752 | ((RxD1_t*)rxdp)->Buffer0_ptr, | |
20346722 K |
2753 | dev->mtu + |
2754 | HEADER_ETHERNET_II_802_3_SIZE + | |
2755 | HEADER_802_2_SIZE + | |
2756 | HEADER_SNAP_SIZE, | |
2757 | PCI_DMA_FROMDEVICE); | |
da6971d8 | 2758 | } else if (nic->rxd_mode == RXD_MODE_3B) { |
75c30b13 | 2759 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
da6971d8 | 2760 | ((RxD3_t*)rxdp)->Buffer0_ptr, |
20346722 | 2761 | BUF0_LEN, PCI_DMA_FROMDEVICE); |
da6971d8 AR |
2762 | pci_unmap_single(nic->pdev, (dma_addr_t) |
2763 | ((RxD3_t*)rxdp)->Buffer2_ptr, | |
2764 | dev->mtu + 4, | |
20346722 | 2765 | PCI_DMA_FROMDEVICE); |
da6971d8 | 2766 | } else { |
75c30b13 | 2767 | pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) |
da6971d8 AR |
2768 | ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN, |
2769 | PCI_DMA_FROMDEVICE); | |
2770 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2771 | ((RxD3_t*)rxdp)->Buffer1_ptr, | |
2772 | l3l4hdr_size + 4, | |
2773 | PCI_DMA_FROMDEVICE); | |
2774 | pci_unmap_single(nic->pdev, (dma_addr_t) | |
2775 | ((RxD3_t*)rxdp)->Buffer2_ptr, | |
2776 | dev->mtu, PCI_DMA_FROMDEVICE); | |
2777 | } | |
863c11a9 | 2778 | prefetch(skb->data); |
20346722 K |
2779 | rx_osm_handler(ring_data, rxdp); |
2780 | get_info.offset++; | |
da6971d8 AR |
2781 | ring_data->rx_curr_get_info.offset = get_info.offset; |
2782 | rxdp = ring_data->rx_blocks[get_block]. | |
2783 | rxds[get_info.offset].virt_addr; | |
2784 | if (get_info.offset == rxd_count[nic->rxd_mode]) { | |
20346722 | 2785 | get_info.offset = 0; |
da6971d8 | 2786 | ring_data->rx_curr_get_info.offset = get_info.offset; |
20346722 | 2787 | get_block++; |
da6971d8 AR |
2788 | if (get_block == ring_data->block_count) |
2789 | get_block = 0; | |
2790 | ring_data->rx_curr_get_info.block_index = get_block; | |
20346722 K |
2791 | rxdp = ring_data->rx_blocks[get_block].block_virt_addr; |
2792 | } | |
1da177e4 | 2793 | |
20346722 K |
2794 | #ifdef CONFIG_S2IO_NAPI |
2795 | nic->pkts_to_process -= 1; | |
2796 | if (!nic->pkts_to_process) | |
2797 | break; | |
2798 | #else | |
2799 | pkt_cnt++; | |
1da177e4 LT |
2800 | if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts)) |
2801 | break; | |
20346722 | 2802 | #endif |
1da177e4 | 2803 | } |
7d3d0439 RA |
2804 | if (nic->lro) { |
2805 | /* Clear all LRO sessions before exiting */ | |
2806 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
2807 | lro_t *lro = &nic->lro0_n[i]; | |
2808 | if (lro->in_use) { | |
2809 | update_L3L4_header(nic, lro); | |
2810 | queue_rx_frame(lro->parent); | |
2811 | clear_lro_session(lro); | |
2812 | } | |
2813 | } | |
2814 | } | |
2815 | ||
7ba013ac | 2816 | spin_unlock(&nic->rx_lock); |
1da177e4 | 2817 | } |
20346722 K |
2818 | |
2819 | /** | |
1da177e4 LT |
2820 | * tx_intr_handler - Transmit interrupt handler |
2821 | * @nic : device private variable | |
20346722 K |
2822 | * Description: |
2823 | * If an interrupt was raised to indicate DMA complete of the | |
2824 | * Tx packet, this function is called. It identifies the last TxD | |
2825 | * whose buffer was freed and frees all skbs whose data have already | |
1da177e4 LT |
2826 | * DMA'ed into the NICs internal memory. |
2827 | * Return Value: | |
2828 | * NONE | |
2829 | */ | |
2830 | ||
20346722 | 2831 | static void tx_intr_handler(fifo_info_t *fifo_data) |
1da177e4 | 2832 | { |
20346722 | 2833 | nic_t *nic = fifo_data->nic; |
1da177e4 LT |
2834 | struct net_device *dev = (struct net_device *) nic->dev; |
2835 | tx_curr_get_info_t get_info, put_info; | |
2836 | struct sk_buff *skb; | |
2837 | TxD_t *txdlp; | |
1da177e4 | 2838 | |
20346722 K |
2839 | get_info = fifo_data->tx_curr_get_info; |
2840 | put_info = fifo_data->tx_curr_put_info; | |
2841 | txdlp = (TxD_t *) fifo_data->list_info[get_info.offset]. | |
2842 | list_virt_addr; | |
2843 | while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) && | |
2844 | (get_info.offset != put_info.offset) && | |
2845 | (txdlp->Host_Control)) { | |
2846 | /* Check for TxD errors */ | |
2847 | if (txdlp->Control_1 & TXD_T_CODE) { | |
2848 | unsigned long long err; | |
2849 | err = txdlp->Control_1 & TXD_T_CODE; | |
bd1034f0 AR |
2850 | if (err & 0x1) { |
2851 | nic->mac_control.stats_info->sw_stat. | |
2852 | parity_err_cnt++; | |
2853 | } | |
776bd20f | 2854 | if ((err >> 48) == 0xA) { |
2855 | DBG_PRINT(TX_DBG, "TxD returned due \ | |
cc6e7c44 | 2856 | to loss of link\n"); |
776bd20f | 2857 | } |
2858 | else { | |
2859 | DBG_PRINT(ERR_DBG, "***TxD error \ | |
cc6e7c44 | 2860 | %llx\n", err); |
776bd20f | 2861 | } |
20346722 | 2862 | } |
1da177e4 | 2863 | |
fed5eccd | 2864 | skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset); |
20346722 K |
2865 | if (skb == NULL) { |
2866 | DBG_PRINT(ERR_DBG, "%s: Null skb ", | |
2867 | __FUNCTION__); | |
2868 | DBG_PRINT(ERR_DBG, "in Tx Free Intr\n"); | |
2869 | return; | |
2870 | } | |
2871 | ||
20346722 | 2872 | /* Updating the statistics block */ |
20346722 K |
2873 | nic->stats.tx_bytes += skb->len; |
2874 | dev_kfree_skb_irq(skb); | |
2875 | ||
2876 | get_info.offset++; | |
863c11a9 AR |
2877 | if (get_info.offset == get_info.fifo_len + 1) |
2878 | get_info.offset = 0; | |
20346722 K |
2879 | txdlp = (TxD_t *) fifo_data->list_info |
2880 | [get_info.offset].list_virt_addr; | |
2881 | fifo_data->tx_curr_get_info.offset = | |
2882 | get_info.offset; | |
1da177e4 LT |
2883 | } |
2884 | ||
2885 | spin_lock(&nic->tx_lock); | |
2886 | if (netif_queue_stopped(dev)) | |
2887 | netif_wake_queue(dev); | |
2888 | spin_unlock(&nic->tx_lock); | |
2889 | } | |
2890 | ||
bd1034f0 AR |
2891 | /** |
2892 | * s2io_mdio_write - Function to write in to MDIO registers | |
2893 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2894 | * @addr : address value | |
2895 | * @value : data value | |
2896 | * @dev : pointer to net_device structure | |
2897 | * Description: | |
2898 | * This function is used to write values to the MDIO registers | |
2899 | * NONE | |
2900 | */ | |
2901 | static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev) | |
2902 | { | |
2903 | u64 val64 = 0x0; | |
2904 | nic_t *sp = dev->priv; | |
2905 | XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0; | |
2906 | ||
2907 | //address transaction | |
2908 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2909 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2910 | | MDIO_MMS_PRT_ADDR(0x0); | |
2911 | writeq(val64, &bar0->mdio_control); | |
2912 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2913 | writeq(val64, &bar0->mdio_control); | |
2914 | udelay(100); | |
2915 | ||
2916 | //Data transaction | |
2917 | val64 = 0x0; | |
2918 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2919 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2920 | | MDIO_MMS_PRT_ADDR(0x0) | |
2921 | | MDIO_MDIO_DATA(value) | |
2922 | | MDIO_OP(MDIO_OP_WRITE_TRANS); | |
2923 | writeq(val64, &bar0->mdio_control); | |
2924 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2925 | writeq(val64, &bar0->mdio_control); | |
2926 | udelay(100); | |
2927 | ||
2928 | val64 = 0x0; | |
2929 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2930 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2931 | | MDIO_MMS_PRT_ADDR(0x0) | |
2932 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2933 | writeq(val64, &bar0->mdio_control); | |
2934 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2935 | writeq(val64, &bar0->mdio_control); | |
2936 | udelay(100); | |
2937 | ||
2938 | } | |
2939 | ||
2940 | /** | |
2941 | * s2io_mdio_read - Function to write in to MDIO registers | |
2942 | * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS) | |
2943 | * @addr : address value | |
2944 | * @dev : pointer to net_device structure | |
2945 | * Description: | |
2946 | * This function is used to read values to the MDIO registers | |
2947 | * NONE | |
2948 | */ | |
2949 | static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev) | |
2950 | { | |
2951 | u64 val64 = 0x0; | |
2952 | u64 rval64 = 0x0; | |
2953 | nic_t *sp = dev->priv; | |
2954 | XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0; | |
2955 | ||
2956 | /* address transaction */ | |
2957 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2958 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2959 | | MDIO_MMS_PRT_ADDR(0x0); | |
2960 | writeq(val64, &bar0->mdio_control); | |
2961 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2962 | writeq(val64, &bar0->mdio_control); | |
2963 | udelay(100); | |
2964 | ||
2965 | /* Data transaction */ | |
2966 | val64 = 0x0; | |
2967 | val64 = val64 | MDIO_MMD_INDX_ADDR(addr) | |
2968 | | MDIO_MMD_DEV_ADDR(mmd_type) | |
2969 | | MDIO_MMS_PRT_ADDR(0x0) | |
2970 | | MDIO_OP(MDIO_OP_READ_TRANS); | |
2971 | writeq(val64, &bar0->mdio_control); | |
2972 | val64 = val64 | MDIO_CTRL_START_TRANS(0xE); | |
2973 | writeq(val64, &bar0->mdio_control); | |
2974 | udelay(100); | |
2975 | ||
2976 | /* Read the value from regs */ | |
2977 | rval64 = readq(&bar0->mdio_control); | |
2978 | rval64 = rval64 & 0xFFFF0000; | |
2979 | rval64 = rval64 >> 16; | |
2980 | return rval64; | |
2981 | } | |
2982 | /** | |
2983 | * s2io_chk_xpak_counter - Function to check the status of the xpak counters | |
2984 | * @counter : couter value to be updated | |
2985 | * @flag : flag to indicate the status | |
2986 | * @type : counter type | |
2987 | * Description: | |
2988 | * This function is to check the status of the xpak counters value | |
2989 | * NONE | |
2990 | */ | |
2991 | ||
2992 | static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type) | |
2993 | { | |
2994 | u64 mask = 0x3; | |
2995 | u64 val64; | |
2996 | int i; | |
2997 | for(i = 0; i <index; i++) | |
2998 | mask = mask << 0x2; | |
2999 | ||
3000 | if(flag > 0) | |
3001 | { | |
3002 | *counter = *counter + 1; | |
3003 | val64 = *regs_stat & mask; | |
3004 | val64 = val64 >> (index * 0x2); | |
3005 | val64 = val64 + 1; | |
3006 | if(val64 == 3) | |
3007 | { | |
3008 | switch(type) | |
3009 | { | |
3010 | case 1: | |
3011 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3012 | "service. Excessive temperatures may " | |
3013 | "result in premature transceiver " | |
3014 | "failure \n"); | |
3015 | break; | |
3016 | case 2: | |
3017 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3018 | "service Excessive bias currents may " | |
3019 | "indicate imminent laser diode " | |
3020 | "failure \n"); | |
3021 | break; | |
3022 | case 3: | |
3023 | DBG_PRINT(ERR_DBG, "Take Xframe NIC out of " | |
3024 | "service Excessive laser output " | |
3025 | "power may saturate far-end " | |
3026 | "receiver\n"); | |
3027 | break; | |
3028 | default: | |
3029 | DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm " | |
3030 | "type \n"); | |
3031 | } | |
3032 | val64 = 0x0; | |
3033 | } | |
3034 | val64 = val64 << (index * 0x2); | |
3035 | *regs_stat = (*regs_stat & (~mask)) | (val64); | |
3036 | ||
3037 | } else { | |
3038 | *regs_stat = *regs_stat & (~mask); | |
3039 | } | |
3040 | } | |
3041 | ||
3042 | /** | |
3043 | * s2io_updt_xpak_counter - Function to update the xpak counters | |
3044 | * @dev : pointer to net_device struct | |
3045 | * Description: | |
3046 | * This function is to upate the status of the xpak counters value | |
3047 | * NONE | |
3048 | */ | |
3049 | static void s2io_updt_xpak_counter(struct net_device *dev) | |
3050 | { | |
3051 | u16 flag = 0x0; | |
3052 | u16 type = 0x0; | |
3053 | u16 val16 = 0x0; | |
3054 | u64 val64 = 0x0; | |
3055 | u64 addr = 0x0; | |
3056 | ||
3057 | nic_t *sp = dev->priv; | |
3058 | StatInfo_t *stat_info = sp->mac_control.stats_info; | |
3059 | ||
3060 | /* Check the communication with the MDIO slave */ | |
3061 | addr = 0x0000; | |
3062 | val64 = 0x0; | |
3063 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3064 | if((val64 == 0xFFFF) || (val64 == 0x0000)) | |
3065 | { | |
3066 | DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - " | |
3067 | "Returned %llx\n", (unsigned long long)val64); | |
3068 | return; | |
3069 | } | |
3070 | ||
3071 | /* Check for the expecte value of 2040 at PMA address 0x0000 */ | |
3072 | if(val64 != 0x2040) | |
3073 | { | |
3074 | DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "); | |
3075 | DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n", | |
3076 | (unsigned long long)val64); | |
3077 | return; | |
3078 | } | |
3079 | ||
3080 | /* Loading the DOM register to MDIO register */ | |
3081 | addr = 0xA100; | |
3082 | s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev); | |
3083 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3084 | ||
3085 | /* Reading the Alarm flags */ | |
3086 | addr = 0xA070; | |
3087 | val64 = 0x0; | |
3088 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3089 | ||
3090 | flag = CHECKBIT(val64, 0x7); | |
3091 | type = 1; | |
3092 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high, | |
3093 | &stat_info->xpak_stat.xpak_regs_stat, | |
3094 | 0x0, flag, type); | |
3095 | ||
3096 | if(CHECKBIT(val64, 0x6)) | |
3097 | stat_info->xpak_stat.alarm_transceiver_temp_low++; | |
3098 | ||
3099 | flag = CHECKBIT(val64, 0x3); | |
3100 | type = 2; | |
3101 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high, | |
3102 | &stat_info->xpak_stat.xpak_regs_stat, | |
3103 | 0x2, flag, type); | |
3104 | ||
3105 | if(CHECKBIT(val64, 0x2)) | |
3106 | stat_info->xpak_stat.alarm_laser_bias_current_low++; | |
3107 | ||
3108 | flag = CHECKBIT(val64, 0x1); | |
3109 | type = 3; | |
3110 | s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high, | |
3111 | &stat_info->xpak_stat.xpak_regs_stat, | |
3112 | 0x4, flag, type); | |
3113 | ||
3114 | if(CHECKBIT(val64, 0x0)) | |
3115 | stat_info->xpak_stat.alarm_laser_output_power_low++; | |
3116 | ||
3117 | /* Reading the Warning flags */ | |
3118 | addr = 0xA074; | |
3119 | val64 = 0x0; | |
3120 | val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev); | |
3121 | ||
3122 | if(CHECKBIT(val64, 0x7)) | |
3123 | stat_info->xpak_stat.warn_transceiver_temp_high++; | |
3124 | ||
3125 | if(CHECKBIT(val64, 0x6)) | |
3126 | stat_info->xpak_stat.warn_transceiver_temp_low++; | |
3127 | ||
3128 | if(CHECKBIT(val64, 0x3)) | |
3129 | stat_info->xpak_stat.warn_laser_bias_current_high++; | |
3130 | ||
3131 | if(CHECKBIT(val64, 0x2)) | |
3132 | stat_info->xpak_stat.warn_laser_bias_current_low++; | |
3133 | ||
3134 | if(CHECKBIT(val64, 0x1)) | |
3135 | stat_info->xpak_stat.warn_laser_output_power_high++; | |
3136 | ||
3137 | if(CHECKBIT(val64, 0x0)) | |
3138 | stat_info->xpak_stat.warn_laser_output_power_low++; | |
3139 | } | |
3140 | ||
20346722 | 3141 | /** |
1da177e4 LT |
3142 | * alarm_intr_handler - Alarm Interrrupt handler |
3143 | * @nic: device private variable | |
20346722 | 3144 | * Description: If the interrupt was neither because of Rx packet or Tx |
1da177e4 | 3145 | * complete, this function is called. If the interrupt was to indicate |
20346722 K |
3146 | * a loss of link, the OSM link status handler is invoked for any other |
3147 | * alarm interrupt the block that raised the interrupt is displayed | |
1da177e4 LT |
3148 | * and a H/W reset is issued. |
3149 | * Return Value: | |
3150 | * NONE | |
3151 | */ | |
3152 | ||
3153 | static void alarm_intr_handler(struct s2io_nic *nic) | |
3154 | { | |
3155 | struct net_device *dev = (struct net_device *) nic->dev; | |
3156 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
3157 | register u64 val64 = 0, err_reg = 0; | |
bd1034f0 AR |
3158 | u64 cnt; |
3159 | int i; | |
3160 | nic->mac_control.stats_info->sw_stat.ring_full_cnt = 0; | |
3161 | /* Handling the XPAK counters update */ | |
3162 | if(nic->mac_control.stats_info->xpak_stat.xpak_timer_count < 72000) { | |
3163 | /* waiting for an hour */ | |
3164 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count++; | |
3165 | } else { | |
3166 | s2io_updt_xpak_counter(dev); | |
3167 | /* reset the count to zero */ | |
3168 | nic->mac_control.stats_info->xpak_stat.xpak_timer_count = 0; | |
3169 | } | |
1da177e4 LT |
3170 | |
3171 | /* Handling link status change error Intr */ | |
a371a07d K |
3172 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
3173 | err_reg = readq(&bar0->mac_rmac_err_reg); | |
3174 | writeq(err_reg, &bar0->mac_rmac_err_reg); | |
3175 | if (err_reg & RMAC_LINK_STATE_CHANGE_INT) { | |
3176 | schedule_work(&nic->set_link_task); | |
3177 | } | |
1da177e4 LT |
3178 | } |
3179 | ||
5e25b9dd K |
3180 | /* Handling Ecc errors */ |
3181 | val64 = readq(&bar0->mc_err_reg); | |
3182 | writeq(val64, &bar0->mc_err_reg); | |
3183 | if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) { | |
3184 | if (val64 & MC_ERR_REG_ECC_ALL_DBL) { | |
7ba013ac K |
3185 | nic->mac_control.stats_info->sw_stat. |
3186 | double_ecc_errs++; | |
776bd20f | 3187 | DBG_PRINT(INIT_DBG, "%s: Device indicates ", |
5e25b9dd | 3188 | dev->name); |
776bd20f | 3189 | DBG_PRINT(INIT_DBG, "double ECC error!!\n"); |
e960fc5c | 3190 | if (nic->device_type != XFRAME_II_DEVICE) { |
776bd20f | 3191 | /* Reset XframeI only if critical error */ |
3192 | if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 | | |
3193 | MC_ERR_REG_MIRI_ECC_DB_ERR_1)) { | |
3194 | netif_stop_queue(dev); | |
3195 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 AR |
3196 | nic->mac_control.stats_info->sw_stat. |
3197 | soft_reset_cnt++; | |
776bd20f | 3198 | } |
e960fc5c | 3199 | } |
5e25b9dd | 3200 | } else { |
7ba013ac K |
3201 | nic->mac_control.stats_info->sw_stat. |
3202 | single_ecc_errs++; | |
5e25b9dd K |
3203 | } |
3204 | } | |
3205 | ||
1da177e4 LT |
3206 | /* In case of a serious error, the device will be Reset. */ |
3207 | val64 = readq(&bar0->serr_source); | |
3208 | if (val64 & SERR_SOURCE_ANY) { | |
bd1034f0 | 3209 | nic->mac_control.stats_info->sw_stat.serious_err_cnt++; |
1da177e4 | 3210 | DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name); |
776bd20f | 3211 | DBG_PRINT(ERR_DBG, "serious error %llx!!\n", |
3212 | (unsigned long long)val64); | |
1da177e4 LT |
3213 | netif_stop_queue(dev); |
3214 | schedule_work(&nic->rst_timer_task); | |
bd1034f0 | 3215 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
3216 | } |
3217 | ||
3218 | /* | |
3219 | * Also as mentioned in the latest Errata sheets if the PCC_FB_ECC | |
3220 | * Error occurs, the adapter will be recycled by disabling the | |
20346722 | 3221 | * adapter enable bit and enabling it again after the device |
1da177e4 LT |
3222 | * becomes Quiescent. |
3223 | */ | |
3224 | val64 = readq(&bar0->pcc_err_reg); | |
3225 | writeq(val64, &bar0->pcc_err_reg); | |
3226 | if (val64 & PCC_FB_ECC_DB_ERR) { | |
3227 | u64 ac = readq(&bar0->adapter_control); | |
3228 | ac &= ~(ADAPTER_CNTL_EN); | |
3229 | writeq(ac, &bar0->adapter_control); | |
3230 | ac = readq(&bar0->adapter_control); | |
3231 | schedule_work(&nic->set_link_task); | |
3232 | } | |
bd1034f0 AR |
3233 | /* Check for data parity error */ |
3234 | val64 = readq(&bar0->pic_int_status); | |
3235 | if (val64 & PIC_INT_GPIO) { | |
3236 | val64 = readq(&bar0->gpio_int_reg); | |
3237 | if (val64 & GPIO_INT_REG_DP_ERR_INT) { | |
3238 | nic->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
3239 | schedule_work(&nic->rst_timer_task); | |
3240 | nic->mac_control.stats_info->sw_stat.soft_reset_cnt++; | |
3241 | } | |
3242 | } | |
3243 | ||
3244 | /* Check for ring full counter */ | |
3245 | if (nic->device_type & XFRAME_II_DEVICE) { | |
3246 | val64 = readq(&bar0->ring_bump_counter1); | |
3247 | for (i=0; i<4; i++) { | |
3248 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3249 | cnt >>= 64 - ((i+1)*16); | |
3250 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3251 | += cnt; | |
3252 | } | |
3253 | ||
3254 | val64 = readq(&bar0->ring_bump_counter2); | |
3255 | for (i=0; i<4; i++) { | |
3256 | cnt = ( val64 & vBIT(0xFFFF,(i*16),16)); | |
3257 | cnt >>= 64 - ((i+1)*16); | |
3258 | nic->mac_control.stats_info->sw_stat.ring_full_cnt | |
3259 | += cnt; | |
3260 | } | |
3261 | } | |
1da177e4 LT |
3262 | |
3263 | /* Other type of interrupts are not being handled now, TODO */ | |
3264 | } | |
3265 | ||
20346722 | 3266 | /** |
1da177e4 | 3267 | * wait_for_cmd_complete - waits for a command to complete. |
20346722 | 3268 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 3269 | * s2io_nic structure. |
20346722 K |
3270 | * Description: Function that waits for a command to Write into RMAC |
3271 | * ADDR DATA registers to be completed and returns either success or | |
3272 | * error depending on whether the command was complete or not. | |
1da177e4 LT |
3273 | * Return value: |
3274 | * SUCCESS on success and FAILURE on failure. | |
3275 | */ | |
3276 | ||
c92ca04b | 3277 | static int wait_for_cmd_complete(void *addr, u64 busy_bit) |
1da177e4 | 3278 | { |
1da177e4 LT |
3279 | int ret = FAILURE, cnt = 0; |
3280 | u64 val64; | |
3281 | ||
3282 | while (TRUE) { | |
c92ca04b AR |
3283 | val64 = readq(addr); |
3284 | if (!(val64 & busy_bit)) { | |
1da177e4 LT |
3285 | ret = SUCCESS; |
3286 | break; | |
3287 | } | |
c92ca04b AR |
3288 | |
3289 | if(in_interrupt()) | |
3290 | mdelay(50); | |
3291 | else | |
3292 | msleep(50); | |
3293 | ||
1da177e4 LT |
3294 | if (cnt++ > 10) |
3295 | break; | |
3296 | } | |
1da177e4 LT |
3297 | return ret; |
3298 | } | |
3299 | ||
20346722 K |
3300 | /** |
3301 | * s2io_reset - Resets the card. | |
1da177e4 LT |
3302 | * @sp : private member of the device structure. |
3303 | * Description: Function to Reset the card. This function then also | |
20346722 | 3304 | * restores the previously saved PCI configuration space registers as |
1da177e4 LT |
3305 | * the card reset also resets the configuration space. |
3306 | * Return value: | |
3307 | * void. | |
3308 | */ | |
3309 | ||
26df54bf | 3310 | static void s2io_reset(nic_t * sp) |
1da177e4 LT |
3311 | { |
3312 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
3313 | u64 val64; | |
5e25b9dd | 3314 | u16 subid, pci_cmd; |
1da177e4 | 3315 | |
0b1f7ebe | 3316 | /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ |
e960fc5c | 3317 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); |
0b1f7ebe | 3318 | |
1da177e4 LT |
3319 | val64 = SW_RESET_ALL; |
3320 | writeq(val64, &bar0->sw_reset); | |
3321 | ||
20346722 K |
3322 | /* |
3323 | * At this stage, if the PCI write is indeed completed, the | |
3324 | * card is reset and so is the PCI Config space of the device. | |
3325 | * So a read cannot be issued at this stage on any of the | |
1da177e4 LT |
3326 | * registers to ensure the write into "sw_reset" register |
3327 | * has gone through. | |
3328 | * Question: Is there any system call that will explicitly force | |
3329 | * all the write commands still pending on the bus to be pushed | |
3330 | * through? | |
3331 | * As of now I'am just giving a 250ms delay and hoping that the | |
3332 | * PCI write to sw_reset register is done by this time. | |
3333 | */ | |
3334 | msleep(250); | |
c92ca04b AR |
3335 | if (strstr(sp->product_name, "CX4")) { |
3336 | msleep(750); | |
3337 | } | |
1da177e4 | 3338 | |
e960fc5c | 3339 | /* Restore the PCI state saved during initialization. */ |
3340 | pci_restore_state(sp->pdev); | |
3341 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
0b1f7ebe | 3342 | pci_cmd); |
1da177e4 LT |
3343 | s2io_init_pci(sp); |
3344 | ||
3345 | msleep(250); | |
3346 | ||
20346722 K |
3347 | /* Set swapper to enable I/O register access */ |
3348 | s2io_set_swapper(sp); | |
3349 | ||
cc6e7c44 RA |
3350 | /* Restore the MSIX table entries from local variables */ |
3351 | restore_xmsi_data(sp); | |
3352 | ||
5e25b9dd | 3353 | /* Clear certain PCI/PCI-X fields after reset */ |
303bcb4b | 3354 | if (sp->device_type == XFRAME_II_DEVICE) { |
b41477f3 | 3355 | /* Clear "detected parity error" bit */ |
303bcb4b | 3356 | pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); |
5e25b9dd | 3357 | |
303bcb4b K |
3358 | /* Clearing PCIX Ecc status register */ |
3359 | pci_write_config_dword(sp->pdev, 0x68, 0x7C); | |
5e25b9dd | 3360 | |
303bcb4b K |
3361 | /* Clearing PCI_STATUS error reflected here */ |
3362 | writeq(BIT(62), &bar0->txpic_int_reg); | |
3363 | } | |
5e25b9dd | 3364 | |
20346722 K |
3365 | /* Reset device statistics maintained by OS */ |
3366 | memset(&sp->stats, 0, sizeof (struct net_device_stats)); | |
3367 | ||
1da177e4 LT |
3368 | /* SXE-002: Configure link and activity LED to turn it off */ |
3369 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
3370 | if (((subid & 0xFF) >= 0x07) && |
3371 | (sp->device_type == XFRAME_I_DEVICE)) { | |
1da177e4 LT |
3372 | val64 = readq(&bar0->gpio_control); |
3373 | val64 |= 0x0000800000000000ULL; | |
3374 | writeq(val64, &bar0->gpio_control); | |
3375 | val64 = 0x0411040400000000ULL; | |
509a2671 | 3376 | writeq(val64, (void __iomem *)bar0 + 0x2700); |
1da177e4 LT |
3377 | } |
3378 | ||
541ae68f K |
3379 | /* |
3380 | * Clear spurious ECC interrupts that would have occured on | |
3381 | * XFRAME II cards after reset. | |
3382 | */ | |
3383 | if (sp->device_type == XFRAME_II_DEVICE) { | |
3384 | val64 = readq(&bar0->pcc_err_reg); | |
3385 | writeq(val64, &bar0->pcc_err_reg); | |
3386 | } | |
3387 | ||
1da177e4 LT |
3388 | sp->device_enabled_once = FALSE; |
3389 | } | |
3390 | ||
3391 | /** | |
20346722 K |
3392 | * s2io_set_swapper - to set the swapper controle on the card |
3393 | * @sp : private member of the device structure, | |
1da177e4 | 3394 | * pointer to the s2io_nic structure. |
20346722 | 3395 | * Description: Function to set the swapper control on the card |
1da177e4 LT |
3396 | * correctly depending on the 'endianness' of the system. |
3397 | * Return value: | |
3398 | * SUCCESS on success and FAILURE on failure. | |
3399 | */ | |
3400 | ||
26df54bf | 3401 | static int s2io_set_swapper(nic_t * sp) |
1da177e4 LT |
3402 | { |
3403 | struct net_device *dev = sp->dev; | |
3404 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
3405 | u64 val64, valt, valr; | |
3406 | ||
20346722 | 3407 | /* |
1da177e4 LT |
3408 | * Set proper endian settings and verify the same by reading |
3409 | * the PIF Feed-back register. | |
3410 | */ | |
3411 | ||
3412 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3413 | if (val64 != 0x0123456789ABCDEFULL) { | |
3414 | int i = 0; | |
3415 | u64 value[] = { 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */ | |
3416 | 0x8100008181000081ULL, /* FE=1, SE=0 */ | |
3417 | 0x4200004242000042ULL, /* FE=0, SE=1 */ | |
3418 | 0}; /* FE=0, SE=0 */ | |
3419 | ||
3420 | while(i<4) { | |
3421 | writeq(value[i], &bar0->swapper_ctrl); | |
3422 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3423 | if (val64 == 0x0123456789ABCDEFULL) | |
3424 | break; | |
3425 | i++; | |
3426 | } | |
3427 | if (i == 4) { | |
3428 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3429 | dev->name); | |
3430 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3431 | (unsigned long long) val64); | |
3432 | return FAILURE; | |
3433 | } | |
3434 | valr = value[i]; | |
3435 | } else { | |
3436 | valr = readq(&bar0->swapper_ctrl); | |
3437 | } | |
3438 | ||
3439 | valt = 0x0123456789ABCDEFULL; | |
3440 | writeq(valt, &bar0->xmsi_address); | |
3441 | val64 = readq(&bar0->xmsi_address); | |
3442 | ||
3443 | if(val64 != valt) { | |
3444 | int i = 0; | |
3445 | u64 value[] = { 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */ | |
3446 | 0x0081810000818100ULL, /* FE=1, SE=0 */ | |
3447 | 0x0042420000424200ULL, /* FE=0, SE=1 */ | |
3448 | 0}; /* FE=0, SE=0 */ | |
3449 | ||
3450 | while(i<4) { | |
3451 | writeq((value[i] | valr), &bar0->swapper_ctrl); | |
3452 | writeq(valt, &bar0->xmsi_address); | |
3453 | val64 = readq(&bar0->xmsi_address); | |
3454 | if(val64 == valt) | |
3455 | break; | |
3456 | i++; | |
3457 | } | |
3458 | if(i == 4) { | |
20346722 | 3459 | unsigned long long x = val64; |
1da177e4 | 3460 | DBG_PRINT(ERR_DBG, "Write failed, Xmsi_addr "); |
20346722 | 3461 | DBG_PRINT(ERR_DBG, "reads:0x%llx\n", x); |
1da177e4 LT |
3462 | return FAILURE; |
3463 | } | |
3464 | } | |
3465 | val64 = readq(&bar0->swapper_ctrl); | |
3466 | val64 &= 0xFFFF000000000000ULL; | |
3467 | ||
3468 | #ifdef __BIG_ENDIAN | |
20346722 K |
3469 | /* |
3470 | * The device by default set to a big endian format, so a | |
1da177e4 LT |
3471 | * big endian driver need not set anything. |
3472 | */ | |
3473 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3474 | SWAPPER_CTRL_TXP_SE | | |
3475 | SWAPPER_CTRL_TXD_R_FE | | |
3476 | SWAPPER_CTRL_TXD_W_FE | | |
3477 | SWAPPER_CTRL_TXF_R_FE | | |
3478 | SWAPPER_CTRL_RXD_R_FE | | |
3479 | SWAPPER_CTRL_RXD_W_FE | | |
3480 | SWAPPER_CTRL_RXF_W_FE | | |
3481 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3482 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
92383340 | 3483 | if (sp->intr_type == INTA) |
cc6e7c44 | 3484 | val64 |= SWAPPER_CTRL_XMSI_SE; |
1da177e4 LT |
3485 | writeq(val64, &bar0->swapper_ctrl); |
3486 | #else | |
20346722 | 3487 | /* |
1da177e4 | 3488 | * Initially we enable all bits to make it accessible by the |
20346722 | 3489 | * driver, then we selectively enable only those bits that |
1da177e4 LT |
3490 | * we want to set. |
3491 | */ | |
3492 | val64 |= (SWAPPER_CTRL_TXP_FE | | |
3493 | SWAPPER_CTRL_TXP_SE | | |
3494 | SWAPPER_CTRL_TXD_R_FE | | |
3495 | SWAPPER_CTRL_TXD_R_SE | | |
3496 | SWAPPER_CTRL_TXD_W_FE | | |
3497 | SWAPPER_CTRL_TXD_W_SE | | |
3498 | SWAPPER_CTRL_TXF_R_FE | | |
3499 | SWAPPER_CTRL_RXD_R_FE | | |
3500 | SWAPPER_CTRL_RXD_R_SE | | |
3501 | SWAPPER_CTRL_RXD_W_FE | | |
3502 | SWAPPER_CTRL_RXD_W_SE | | |
3503 | SWAPPER_CTRL_RXF_W_FE | | |
3504 | SWAPPER_CTRL_XMSI_FE | | |
1da177e4 | 3505 | SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE); |
cc6e7c44 RA |
3506 | if (sp->intr_type == INTA) |
3507 | val64 |= SWAPPER_CTRL_XMSI_SE; | |
1da177e4 LT |
3508 | writeq(val64, &bar0->swapper_ctrl); |
3509 | #endif | |
3510 | val64 = readq(&bar0->swapper_ctrl); | |
3511 | ||
20346722 K |
3512 | /* |
3513 | * Verifying if endian settings are accurate by reading a | |
1da177e4 LT |
3514 | * feedback register. |
3515 | */ | |
3516 | val64 = readq(&bar0->pif_rd_swapper_fb); | |
3517 | if (val64 != 0x0123456789ABCDEFULL) { | |
3518 | /* Endian settings are incorrect, calls for another dekko. */ | |
3519 | DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, ", | |
3520 | dev->name); | |
3521 | DBG_PRINT(ERR_DBG, "feedback read %llx\n", | |
3522 | (unsigned long long) val64); | |
3523 | return FAILURE; | |
3524 | } | |
3525 | ||
3526 | return SUCCESS; | |
3527 | } | |
3528 | ||
ac1f60db | 3529 | static int wait_for_msix_trans(nic_t *nic, int i) |
cc6e7c44 | 3530 | { |
37eb47ed | 3531 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3532 | u64 val64; |
3533 | int ret = 0, cnt = 0; | |
3534 | ||
3535 | do { | |
3536 | val64 = readq(&bar0->xmsi_access); | |
3537 | if (!(val64 & BIT(15))) | |
3538 | break; | |
3539 | mdelay(1); | |
3540 | cnt++; | |
3541 | } while(cnt < 5); | |
3542 | if (cnt == 5) { | |
3543 | DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i); | |
3544 | ret = 1; | |
3545 | } | |
3546 | ||
3547 | return ret; | |
3548 | } | |
3549 | ||
26df54bf | 3550 | static void restore_xmsi_data(nic_t *nic) |
cc6e7c44 | 3551 | { |
37eb47ed | 3552 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3553 | u64 val64; |
3554 | int i; | |
3555 | ||
75c30b13 | 3556 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3557 | writeq(nic->msix_info[i].addr, &bar0->xmsi_address); |
3558 | writeq(nic->msix_info[i].data, &bar0->xmsi_data); | |
3559 | val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6)); | |
3560 | writeq(val64, &bar0->xmsi_access); | |
3561 | if (wait_for_msix_trans(nic, i)) { | |
3562 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3563 | continue; | |
3564 | } | |
3565 | } | |
3566 | } | |
3567 | ||
ac1f60db | 3568 | static void store_xmsi_data(nic_t *nic) |
cc6e7c44 | 3569 | { |
37eb47ed | 3570 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3571 | u64 val64, addr, data; |
3572 | int i; | |
3573 | ||
3574 | /* Store and display */ | |
75c30b13 | 3575 | for (i=0; i < MAX_REQUESTED_MSI_X; i++) { |
cc6e7c44 RA |
3576 | val64 = (BIT(15) | vBIT(i, 26, 6)); |
3577 | writeq(val64, &bar0->xmsi_access); | |
3578 | if (wait_for_msix_trans(nic, i)) { | |
3579 | DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__); | |
3580 | continue; | |
3581 | } | |
3582 | addr = readq(&bar0->xmsi_address); | |
3583 | data = readq(&bar0->xmsi_data); | |
3584 | if (addr && data) { | |
3585 | nic->msix_info[i].addr = addr; | |
3586 | nic->msix_info[i].data = data; | |
3587 | } | |
3588 | } | |
3589 | } | |
3590 | ||
3591 | int s2io_enable_msi(nic_t *nic) | |
3592 | { | |
37eb47ed | 3593 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3594 | u16 msi_ctrl, msg_val; |
3595 | struct config_param *config = &nic->config; | |
3596 | struct net_device *dev = nic->dev; | |
3597 | u64 val64, tx_mat, rx_mat; | |
3598 | int i, err; | |
3599 | ||
3600 | val64 = readq(&bar0->pic_control); | |
3601 | val64 &= ~BIT(1); | |
3602 | writeq(val64, &bar0->pic_control); | |
3603 | ||
3604 | err = pci_enable_msi(nic->pdev); | |
3605 | if (err) { | |
3606 | DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n", | |
3607 | nic->dev->name); | |
3608 | return err; | |
3609 | } | |
3610 | ||
3611 | /* | |
3612 | * Enable MSI and use MSI-1 in stead of the standard MSI-0 | |
3613 | * for interrupt handling. | |
3614 | */ | |
3615 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3616 | msg_val ^= 0x1; | |
3617 | pci_write_config_word(nic->pdev, 0x4c, msg_val); | |
3618 | pci_read_config_word(nic->pdev, 0x4c, &msg_val); | |
3619 | ||
3620 | pci_read_config_word(nic->pdev, 0x42, &msi_ctrl); | |
3621 | msi_ctrl |= 0x10; | |
3622 | pci_write_config_word(nic->pdev, 0x42, msi_ctrl); | |
3623 | ||
3624 | /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */ | |
3625 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3626 | for (i=0; i<config->tx_fifo_num; i++) { | |
3627 | tx_mat |= TX_MAT_SET(i, 1); | |
3628 | } | |
3629 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3630 | ||
3631 | rx_mat = readq(&bar0->rx_mat); | |
3632 | for (i=0; i<config->rx_ring_num; i++) { | |
3633 | rx_mat |= RX_MAT_SET(i, 1); | |
3634 | } | |
3635 | writeq(rx_mat, &bar0->rx_mat); | |
3636 | ||
3637 | dev->irq = nic->pdev->irq; | |
3638 | return 0; | |
3639 | } | |
3640 | ||
26df54bf | 3641 | static int s2io_enable_msi_x(nic_t *nic) |
cc6e7c44 | 3642 | { |
37eb47ed | 3643 | XENA_dev_config_t __iomem *bar0 = nic->bar0; |
cc6e7c44 RA |
3644 | u64 tx_mat, rx_mat; |
3645 | u16 msi_control; /* Temp variable */ | |
3646 | int ret, i, j, msix_indx = 1; | |
3647 | ||
3648 | nic->entries = kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry), | |
3649 | GFP_KERNEL); | |
3650 | if (nic->entries == NULL) { | |
3651 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__); | |
3652 | return -ENOMEM; | |
3653 | } | |
3654 | memset(nic->entries, 0, MAX_REQUESTED_MSI_X * sizeof(struct msix_entry)); | |
3655 | ||
3656 | nic->s2io_entries = | |
3657 | kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry), | |
3658 | GFP_KERNEL); | |
3659 | if (nic->s2io_entries == NULL) { | |
3660 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__); | |
3661 | kfree(nic->entries); | |
3662 | return -ENOMEM; | |
3663 | } | |
3664 | memset(nic->s2io_entries, 0, | |
3665 | MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry)); | |
3666 | ||
3667 | for (i=0; i< MAX_REQUESTED_MSI_X; i++) { | |
3668 | nic->entries[i].entry = i; | |
3669 | nic->s2io_entries[i].entry = i; | |
3670 | nic->s2io_entries[i].arg = NULL; | |
3671 | nic->s2io_entries[i].in_use = 0; | |
3672 | } | |
3673 | ||
3674 | tx_mat = readq(&bar0->tx_mat0_n[0]); | |
3675 | for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) { | |
3676 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3677 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i]; | |
3678 | nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE; | |
3679 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3680 | } | |
3681 | writeq(tx_mat, &bar0->tx_mat0_n[0]); | |
3682 | ||
3683 | if (!nic->config.bimodal) { | |
3684 | rx_mat = readq(&bar0->rx_mat); | |
3685 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3686 | rx_mat |= RX_MAT_SET(j, msix_indx); | |
3687 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j]; | |
3688 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; | |
3689 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3690 | } | |
3691 | writeq(rx_mat, &bar0->rx_mat); | |
3692 | } else { | |
3693 | tx_mat = readq(&bar0->tx_mat0_n[7]); | |
3694 | for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) { | |
3695 | tx_mat |= TX_MAT_SET(i, msix_indx); | |
3696 | nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j]; | |
3697 | nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE; | |
3698 | nic->s2io_entries[msix_indx].in_use = MSIX_FLG; | |
3699 | } | |
3700 | writeq(tx_mat, &bar0->tx_mat0_n[7]); | |
3701 | } | |
3702 | ||
c92ca04b | 3703 | nic->avail_msix_vectors = 0; |
cc6e7c44 | 3704 | ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X); |
c92ca04b AR |
3705 | /* We fail init if error or we get less vectors than min required */ |
3706 | if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) { | |
3707 | nic->avail_msix_vectors = ret; | |
3708 | ret = pci_enable_msix(nic->pdev, nic->entries, ret); | |
3709 | } | |
cc6e7c44 RA |
3710 | if (ret) { |
3711 | DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name); | |
3712 | kfree(nic->entries); | |
3713 | kfree(nic->s2io_entries); | |
3714 | nic->entries = NULL; | |
3715 | nic->s2io_entries = NULL; | |
c92ca04b | 3716 | nic->avail_msix_vectors = 0; |
cc6e7c44 RA |
3717 | return -ENOMEM; |
3718 | } | |
c92ca04b AR |
3719 | if (!nic->avail_msix_vectors) |
3720 | nic->avail_msix_vectors = MAX_REQUESTED_MSI_X; | |
cc6e7c44 RA |
3721 | |
3722 | /* | |
3723 | * To enable MSI-X, MSI also needs to be enabled, due to a bug | |
3724 | * in the herc NIC. (Temp change, needs to be removed later) | |
3725 | */ | |
3726 | pci_read_config_word(nic->pdev, 0x42, &msi_control); | |
3727 | msi_control |= 0x1; /* Enable MSI */ | |
3728 | pci_write_config_word(nic->pdev, 0x42, msi_control); | |
3729 | ||
3730 | return 0; | |
3731 | } | |
3732 | ||
1da177e4 LT |
3733 | /* ********************************************************* * |
3734 | * Functions defined below concern the OS part of the driver * | |
3735 | * ********************************************************* */ | |
3736 | ||
20346722 | 3737 | /** |
1da177e4 LT |
3738 | * s2io_open - open entry point of the driver |
3739 | * @dev : pointer to the device structure. | |
3740 | * Description: | |
3741 | * This function is the open entry point of the driver. It mainly calls a | |
3742 | * function to allocate Rx buffers and inserts them into the buffer | |
20346722 | 3743 | * descriptors and then enables the Rx part of the NIC. |
1da177e4 LT |
3744 | * Return value: |
3745 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3746 | * file on failure. | |
3747 | */ | |
3748 | ||
ac1f60db | 3749 | static int s2io_open(struct net_device *dev) |
1da177e4 LT |
3750 | { |
3751 | nic_t *sp = dev->priv; | |
3752 | int err = 0; | |
3753 | ||
20346722 K |
3754 | /* |
3755 | * Make sure you have link off by default every time | |
1da177e4 LT |
3756 | * Nic is initialized |
3757 | */ | |
3758 | netif_carrier_off(dev); | |
0b1f7ebe | 3759 | sp->last_link_state = 0; |
1da177e4 LT |
3760 | |
3761 | /* Initialize H/W and enable interrupts */ | |
c92ca04b AR |
3762 | err = s2io_card_up(sp); |
3763 | if (err) { | |
1da177e4 LT |
3764 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", |
3765 | dev->name); | |
e6a8fee2 | 3766 | goto hw_init_failed; |
1da177e4 LT |
3767 | } |
3768 | ||
3769 | if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) { | |
3770 | DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n"); | |
e6a8fee2 | 3771 | s2io_card_down(sp); |
20346722 | 3772 | err = -ENODEV; |
e6a8fee2 | 3773 | goto hw_init_failed; |
1da177e4 LT |
3774 | } |
3775 | ||
3776 | netif_start_queue(dev); | |
3777 | return 0; | |
20346722 | 3778 | |
20346722 | 3779 | hw_init_failed: |
cc6e7c44 RA |
3780 | if (sp->intr_type == MSI_X) { |
3781 | if (sp->entries) | |
3782 | kfree(sp->entries); | |
3783 | if (sp->s2io_entries) | |
3784 | kfree(sp->s2io_entries); | |
3785 | } | |
20346722 | 3786 | return err; |
1da177e4 LT |
3787 | } |
3788 | ||
3789 | /** | |
3790 | * s2io_close -close entry point of the driver | |
3791 | * @dev : device pointer. | |
3792 | * Description: | |
3793 | * This is the stop entry point of the driver. It needs to undo exactly | |
3794 | * whatever was done by the open entry point,thus it's usually referred to | |
3795 | * as the close function.Among other things this function mainly stops the | |
3796 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
3797 | * Return value: | |
3798 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
3799 | * file on failure. | |
3800 | */ | |
3801 | ||
ac1f60db | 3802 | static int s2io_close(struct net_device *dev) |
1da177e4 LT |
3803 | { |
3804 | nic_t *sp = dev->priv; | |
cc6e7c44 | 3805 | |
1da177e4 LT |
3806 | flush_scheduled_work(); |
3807 | netif_stop_queue(dev); | |
3808 | /* Reset card, kill tasklet and free Tx and Rx buffers. */ | |
e6a8fee2 | 3809 | s2io_card_down(sp); |
cc6e7c44 | 3810 | |
1da177e4 LT |
3811 | sp->device_close_flag = TRUE; /* Device is shut down. */ |
3812 | return 0; | |
3813 | } | |
3814 | ||
3815 | /** | |
3816 | * s2io_xmit - Tx entry point of te driver | |
3817 | * @skb : the socket buffer containing the Tx data. | |
3818 | * @dev : device pointer. | |
3819 | * Description : | |
3820 | * This function is the Tx entry point of the driver. S2IO NIC supports | |
3821 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
3822 | * NOTE: when device cant queue the pkt,just the trans_start variable will | |
3823 | * not be upadted. | |
3824 | * Return value: | |
3825 | * 0 on success & 1 on failure. | |
3826 | */ | |
3827 | ||
ac1f60db | 3828 | static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 LT |
3829 | { |
3830 | nic_t *sp = dev->priv; | |
3831 | u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off; | |
3832 | register u64 val64; | |
3833 | TxD_t *txdp; | |
3834 | TxFIFO_element_t __iomem *tx_fifo; | |
3835 | unsigned long flags; | |
be3a6b02 K |
3836 | u16 vlan_tag = 0; |
3837 | int vlan_priority = 0; | |
1da177e4 LT |
3838 | mac_info_t *mac_control; |
3839 | struct config_param *config; | |
75c30b13 | 3840 | int offload_type; |
1da177e4 LT |
3841 | |
3842 | mac_control = &sp->mac_control; | |
3843 | config = &sp->config; | |
3844 | ||
20346722 | 3845 | DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name); |
1da177e4 | 3846 | spin_lock_irqsave(&sp->tx_lock, flags); |
1da177e4 | 3847 | if (atomic_read(&sp->card_state) == CARD_DOWN) { |
20346722 | 3848 | DBG_PRINT(TX_DBG, "%s: Card going down for reset\n", |
1da177e4 LT |
3849 | dev->name); |
3850 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
20346722 K |
3851 | dev_kfree_skb(skb); |
3852 | return 0; | |
1da177e4 LT |
3853 | } |
3854 | ||
3855 | queue = 0; | |
1da177e4 | 3856 | |
be3a6b02 K |
3857 | /* Get Fifo number to Transmit based on vlan priority */ |
3858 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { | |
3859 | vlan_tag = vlan_tx_tag_get(skb); | |
3860 | vlan_priority = vlan_tag >> 13; | |
3861 | queue = config->fifo_mapping[vlan_priority]; | |
3862 | } | |
3863 | ||
20346722 K |
3864 | put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset; |
3865 | get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset; | |
3866 | txdp = (TxD_t *) mac_control->fifos[queue].list_info[put_off]. | |
3867 | list_virt_addr; | |
3868 | ||
3869 | queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1; | |
1da177e4 | 3870 | /* Avoid "put" pointer going beyond "get" pointer */ |
863c11a9 AR |
3871 | if (txdp->Host_Control || |
3872 | ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { | |
776bd20f | 3873 | DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n"); |
1da177e4 LT |
3874 | netif_stop_queue(dev); |
3875 | dev_kfree_skb(skb); | |
3876 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3877 | return 0; | |
3878 | } | |
0b1f7ebe K |
3879 | |
3880 | /* A buffer with no data will be dropped */ | |
3881 | if (!skb->len) { | |
3882 | DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name); | |
3883 | dev_kfree_skb(skb); | |
3884 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3885 | return 0; | |
3886 | } | |
3887 | ||
75c30b13 | 3888 | offload_type = s2io_offload_type(skb); |
1da177e4 | 3889 | #ifdef NETIF_F_TSO |
75c30b13 | 3890 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
1da177e4 | 3891 | txdp->Control_1 |= TXD_TCP_LSO_EN; |
75c30b13 | 3892 | txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); |
1da177e4 LT |
3893 | } |
3894 | #endif | |
1da177e4 LT |
3895 | if (skb->ip_summed == CHECKSUM_HW) { |
3896 | txdp->Control_2 |= | |
3897 | (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN | | |
3898 | TXD_TX_CKO_UDP_EN); | |
3899 | } | |
fed5eccd AR |
3900 | txdp->Control_1 |= TXD_GATHER_CODE_FIRST; |
3901 | txdp->Control_1 |= TXD_LIST_OWN_XENA; | |
1da177e4 | 3902 | txdp->Control_2 |= config->tx_intr_type; |
d8892c6e | 3903 | |
be3a6b02 K |
3904 | if (sp->vlgrp && vlan_tx_tag_present(skb)) { |
3905 | txdp->Control_2 |= TXD_VLAN_ENABLE; | |
3906 | txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag); | |
3907 | } | |
3908 | ||
fed5eccd | 3909 | frg_len = skb->len - skb->data_len; |
75c30b13 | 3910 | if (offload_type == SKB_GSO_UDP) { |
fed5eccd AR |
3911 | int ufo_size; |
3912 | ||
75c30b13 | 3913 | ufo_size = s2io_udp_mss(skb); |
fed5eccd AR |
3914 | ufo_size &= ~7; |
3915 | txdp->Control_1 |= TXD_UFO_EN; | |
3916 | txdp->Control_1 |= TXD_UFO_MSS(ufo_size); | |
3917 | txdp->Control_1 |= TXD_BUFFER0_SIZE(8); | |
3918 | #ifdef __BIG_ENDIAN | |
3919 | sp->ufo_in_band_v[put_off] = | |
3920 | (u64)skb_shinfo(skb)->ip6_frag_id; | |
3921 | #else | |
3922 | sp->ufo_in_band_v[put_off] = | |
3923 | (u64)skb_shinfo(skb)->ip6_frag_id << 32; | |
3924 | #endif | |
3925 | txdp->Host_Control = (unsigned long)sp->ufo_in_band_v; | |
3926 | txdp->Buffer_Pointer = pci_map_single(sp->pdev, | |
3927 | sp->ufo_in_band_v, | |
3928 | sizeof(u64), PCI_DMA_TODEVICE); | |
3929 | txdp++; | |
fed5eccd | 3930 | } |
1da177e4 | 3931 | |
fed5eccd AR |
3932 | txdp->Buffer_Pointer = pci_map_single |
3933 | (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); | |
3934 | txdp->Host_Control = (unsigned long) skb; | |
3935 | txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); | |
75c30b13 | 3936 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
3937 | txdp->Control_1 |= TXD_UFO_EN; |
3938 | ||
3939 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1da177e4 LT |
3940 | /* For fragmented SKB. */ |
3941 | for (i = 0; i < frg_cnt; i++) { | |
3942 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
0b1f7ebe K |
3943 | /* A '0' length fragment will be ignored */ |
3944 | if (!frag->size) | |
3945 | continue; | |
1da177e4 LT |
3946 | txdp++; |
3947 | txdp->Buffer_Pointer = (u64) pci_map_page | |
3948 | (sp->pdev, frag->page, frag->page_offset, | |
3949 | frag->size, PCI_DMA_TODEVICE); | |
efd51b5c | 3950 | txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); |
75c30b13 | 3951 | if (offload_type == SKB_GSO_UDP) |
fed5eccd | 3952 | txdp->Control_1 |= TXD_UFO_EN; |
1da177e4 LT |
3953 | } |
3954 | txdp->Control_1 |= TXD_GATHER_CODE_LAST; | |
3955 | ||
75c30b13 | 3956 | if (offload_type == SKB_GSO_UDP) |
fed5eccd AR |
3957 | frg_cnt++; /* as Txd0 was used for inband header */ |
3958 | ||
1da177e4 | 3959 | tx_fifo = mac_control->tx_FIFO_start[queue]; |
20346722 | 3960 | val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr; |
1da177e4 LT |
3961 | writeq(val64, &tx_fifo->TxDL_Pointer); |
3962 | ||
3963 | val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | | |
3964 | TX_FIFO_LAST_LIST); | |
75c30b13 | 3965 | if (offload_type) |
fed5eccd | 3966 | val64 |= TX_FIFO_SPECIAL_FUNC; |
75c30b13 | 3967 | |
1da177e4 LT |
3968 | writeq(val64, &tx_fifo->List_Control); |
3969 | ||
303bcb4b K |
3970 | mmiowb(); |
3971 | ||
1da177e4 | 3972 | put_off++; |
863c11a9 AR |
3973 | if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1) |
3974 | put_off = 0; | |
20346722 | 3975 | mac_control->fifos[queue].tx_curr_put_info.offset = put_off; |
1da177e4 LT |
3976 | |
3977 | /* Avoid "put" pointer going beyond "get" pointer */ | |
863c11a9 | 3978 | if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) { |
bd1034f0 | 3979 | sp->mac_control.stats_info->sw_stat.fifo_full_cnt++; |
1da177e4 LT |
3980 | DBG_PRINT(TX_DBG, |
3981 | "No free TxDs for xmit, Put: 0x%x Get:0x%x\n", | |
3982 | put_off, get_off); | |
3983 | netif_stop_queue(dev); | |
3984 | } | |
3985 | ||
3986 | dev->trans_start = jiffies; | |
3987 | spin_unlock_irqrestore(&sp->tx_lock, flags); | |
3988 | ||
3989 | return 0; | |
3990 | } | |
3991 | ||
25fff88e K |
3992 | static void |
3993 | s2io_alarm_handle(unsigned long data) | |
3994 | { | |
3995 | nic_t *sp = (nic_t *)data; | |
3996 | ||
3997 | alarm_intr_handler(sp); | |
3998 | mod_timer(&sp->alarm_timer, jiffies + HZ / 2); | |
3999 | } | |
4000 | ||
75c30b13 AR |
4001 | static int s2io_chk_rx_buffers(nic_t *sp, int rng_n) |
4002 | { | |
4003 | int rxb_size, level; | |
4004 | ||
4005 | if (!sp->lro) { | |
4006 | rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); | |
4007 | level = rx_buffer_level(sp, rxb_size, rng_n); | |
4008 | ||
4009 | if ((level == PANIC) && (!TASKLET_IN_USE)) { | |
4010 | int ret; | |
4011 | DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); | |
4012 | DBG_PRINT(INTR_DBG, "PANIC levels\n"); | |
4013 | if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { | |
4014 | DBG_PRINT(ERR_DBG, "Out of memory in %s", | |
4015 | __FUNCTION__); | |
4016 | clear_bit(0, (&sp->tasklet_status)); | |
4017 | return -1; | |
4018 | } | |
4019 | clear_bit(0, (&sp->tasklet_status)); | |
4020 | } else if (level == LOW) | |
4021 | tasklet_schedule(&sp->task); | |
4022 | ||
4023 | } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { | |
4024 | DBG_PRINT(ERR_DBG, "%s:Out of memory", sp->dev->name); | |
4025 | DBG_PRINT(ERR_DBG, " in Rx Intr!!\n"); | |
4026 | } | |
4027 | return 0; | |
4028 | } | |
4029 | ||
cc6e7c44 RA |
4030 | static irqreturn_t |
4031 | s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs) | |
4032 | { | |
4033 | struct net_device *dev = (struct net_device *) dev_id; | |
4034 | nic_t *sp = dev->priv; | |
4035 | int i; | |
cc6e7c44 RA |
4036 | mac_info_t *mac_control; |
4037 | struct config_param *config; | |
4038 | ||
4039 | atomic_inc(&sp->isr_cnt); | |
4040 | mac_control = &sp->mac_control; | |
4041 | config = &sp->config; | |
4042 | DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__); | |
4043 | ||
4044 | /* If Intr is because of Rx Traffic */ | |
4045 | for (i = 0; i < config->rx_ring_num; i++) | |
4046 | rx_intr_handler(&mac_control->rings[i]); | |
4047 | ||
4048 | /* If Intr is because of Tx Traffic */ | |
4049 | for (i = 0; i < config->tx_fifo_num; i++) | |
4050 | tx_intr_handler(&mac_control->fifos[i]); | |
4051 | ||
4052 | /* | |
4053 | * If the Rx buffer count is below the panic threshold then | |
4054 | * reallocate the buffers from the interrupt handler itself, | |
4055 | * else schedule a tasklet to reallocate the buffers. | |
4056 | */ | |
75c30b13 AR |
4057 | for (i = 0; i < config->rx_ring_num; i++) |
4058 | s2io_chk_rx_buffers(sp, i); | |
cc6e7c44 RA |
4059 | |
4060 | atomic_dec(&sp->isr_cnt); | |
4061 | return IRQ_HANDLED; | |
4062 | } | |
4063 | ||
4064 | static irqreturn_t | |
4065 | s2io_msix_ring_handle(int irq, void *dev_id, struct pt_regs *regs) | |
4066 | { | |
4067 | ring_info_t *ring = (ring_info_t *)dev_id; | |
4068 | nic_t *sp = ring->nic; | |
cc6e7c44 RA |
4069 | |
4070 | atomic_inc(&sp->isr_cnt); | |
cc6e7c44 | 4071 | |
75c30b13 AR |
4072 | rx_intr_handler(ring); |
4073 | s2io_chk_rx_buffers(sp, ring->ring_no); | |
7d3d0439 | 4074 | |
cc6e7c44 | 4075 | atomic_dec(&sp->isr_cnt); |
cc6e7c44 RA |
4076 | return IRQ_HANDLED; |
4077 | } | |
4078 | ||
4079 | static irqreturn_t | |
4080 | s2io_msix_fifo_handle(int irq, void *dev_id, struct pt_regs *regs) | |
4081 | { | |
4082 | fifo_info_t *fifo = (fifo_info_t *)dev_id; | |
4083 | nic_t *sp = fifo->nic; | |
4084 | ||
4085 | atomic_inc(&sp->isr_cnt); | |
4086 | tx_intr_handler(fifo); | |
4087 | atomic_dec(&sp->isr_cnt); | |
4088 | return IRQ_HANDLED; | |
4089 | } | |
a371a07d K |
4090 | static void s2io_txpic_intr_handle(nic_t *sp) |
4091 | { | |
509a2671 | 4092 | XENA_dev_config_t __iomem *bar0 = sp->bar0; |
a371a07d K |
4093 | u64 val64; |
4094 | ||
4095 | val64 = readq(&bar0->pic_int_status); | |
4096 | if (val64 & PIC_INT_GPIO) { | |
4097 | val64 = readq(&bar0->gpio_int_reg); | |
4098 | if ((val64 & GPIO_INT_REG_LINK_DOWN) && | |
4099 | (val64 & GPIO_INT_REG_LINK_UP)) { | |
c92ca04b AR |
4100 | /* |
4101 | * This is unstable state so clear both up/down | |
4102 | * interrupt and adapter to re-evaluate the link state. | |
4103 | */ | |
a371a07d K |
4104 | val64 |= GPIO_INT_REG_LINK_DOWN; |
4105 | val64 |= GPIO_INT_REG_LINK_UP; | |
4106 | writeq(val64, &bar0->gpio_int_reg); | |
a371a07d | 4107 | val64 = readq(&bar0->gpio_int_mask); |
c92ca04b AR |
4108 | val64 &= ~(GPIO_INT_MASK_LINK_UP | |
4109 | GPIO_INT_MASK_LINK_DOWN); | |
a371a07d | 4110 | writeq(val64, &bar0->gpio_int_mask); |
a371a07d | 4111 | } |
c92ca04b AR |
4112 | else if (val64 & GPIO_INT_REG_LINK_UP) { |
4113 | val64 = readq(&bar0->adapter_status); | |
4114 | if (verify_xena_quiescence(sp, val64, | |
4115 | sp->device_enabled_once)) { | |
4116 | /* Enable Adapter */ | |
4117 | val64 = readq(&bar0->adapter_control); | |
4118 | val64 |= ADAPTER_CNTL_EN; | |
4119 | writeq(val64, &bar0->adapter_control); | |
4120 | val64 |= ADAPTER_LED_ON; | |
4121 | writeq(val64, &bar0->adapter_control); | |
4122 | if (!sp->device_enabled_once) | |
4123 | sp->device_enabled_once = 1; | |
4124 | ||
4125 | s2io_link(sp, LINK_UP); | |
4126 | /* | |
4127 | * unmask link down interrupt and mask link-up | |
4128 | * intr | |
4129 | */ | |
4130 | val64 = readq(&bar0->gpio_int_mask); | |
4131 | val64 &= ~GPIO_INT_MASK_LINK_DOWN; | |
4132 | val64 |= GPIO_INT_MASK_LINK_UP; | |
4133 | writeq(val64, &bar0->gpio_int_mask); | |
4134 | ||
4135 | } | |
4136 | }else if (val64 & GPIO_INT_REG_LINK_DOWN) { | |
4137 | val64 = readq(&bar0->adapter_status); | |
4138 | if (verify_xena_quiescence(sp, val64, | |
4139 | sp->device_enabled_once)) { | |
4140 | s2io_link(sp, LINK_DOWN); | |
4141 | /* Link is down so unmaks link up interrupt */ | |
4142 | val64 = readq(&bar0->gpio_int_mask); | |
4143 | val64 &= ~GPIO_INT_MASK_LINK_UP; | |
4144 | val64 |= GPIO_INT_MASK_LINK_DOWN; | |
4145 | writeq(val64, &bar0->gpio_int_mask); | |
4146 | } | |
a371a07d K |
4147 | } |
4148 | } | |
c92ca04b | 4149 | val64 = readq(&bar0->gpio_int_mask); |
a371a07d K |
4150 | } |
4151 | ||
1da177e4 LT |
4152 | /** |
4153 | * s2io_isr - ISR handler of the device . | |
4154 | * @irq: the irq of the device. | |
4155 | * @dev_id: a void pointer to the dev structure of the NIC. | |
4156 | * @pt_regs: pointer to the registers pushed on the stack. | |
20346722 K |
4157 | * Description: This function is the ISR handler of the device. It |
4158 | * identifies the reason for the interrupt and calls the relevant | |
4159 | * service routines. As a contongency measure, this ISR allocates the | |
1da177e4 LT |
4160 | * recv buffers, if their numbers are below the panic value which is |
4161 | * presently set to 25% of the original number of rcv buffers allocated. | |
4162 | * Return value: | |
20346722 | 4163 | * IRQ_HANDLED: will be returned if IRQ was handled by this routine |
1da177e4 LT |
4164 | * IRQ_NONE: will be returned if interrupt is not from our device |
4165 | */ | |
4166 | static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs) | |
4167 | { | |
4168 | struct net_device *dev = (struct net_device *) dev_id; | |
4169 | nic_t *sp = dev->priv; | |
4170 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
20346722 | 4171 | int i; |
5d3213cc | 4172 | u64 reason = 0, val64, org_mask; |
1da177e4 LT |
4173 | mac_info_t *mac_control; |
4174 | struct config_param *config; | |
4175 | ||
7ba013ac | 4176 | atomic_inc(&sp->isr_cnt); |
1da177e4 LT |
4177 | mac_control = &sp->mac_control; |
4178 | config = &sp->config; | |
4179 | ||
20346722 | 4180 | /* |
1da177e4 LT |
4181 | * Identify the cause for interrupt and call the appropriate |
4182 | * interrupt handler. Causes for the interrupt could be; | |
4183 | * 1. Rx of packet. | |
4184 | * 2. Tx complete. | |
4185 | * 3. Link down. | |
20346722 | 4186 | * 4. Error in any functional blocks of the NIC. |
1da177e4 LT |
4187 | */ |
4188 | reason = readq(&bar0->general_int_status); | |
4189 | ||
4190 | if (!reason) { | |
4191 | /* The interrupt was not raised by Xena. */ | |
7ba013ac | 4192 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4193 | return IRQ_NONE; |
4194 | } | |
4195 | ||
863c11a9 | 4196 | val64 = 0xFFFFFFFFFFFFFFFFULL; |
5d3213cc AR |
4197 | /* Store current mask before masking all interrupts */ |
4198 | org_mask = readq(&bar0->general_int_mask); | |
4199 | writeq(val64, &bar0->general_int_mask); | |
4200 | ||
1da177e4 LT |
4201 | #ifdef CONFIG_S2IO_NAPI |
4202 | if (reason & GEN_INTR_RXTRAFFIC) { | |
4203 | if (netif_rx_schedule_prep(dev)) { | |
863c11a9 | 4204 | writeq(val64, &bar0->rx_traffic_mask); |
1da177e4 LT |
4205 | __netif_rx_schedule(dev); |
4206 | } | |
4207 | } | |
4208 | #else | |
863c11a9 AR |
4209 | /* |
4210 | * Rx handler is called by default, without checking for the | |
4211 | * cause of interrupt. | |
4212 | * rx_traffic_int reg is an R1 register, writing all 1's | |
4213 | * will ensure that the actual interrupt causing bit get's | |
4214 | * cleared and hence a read can be avoided. | |
4215 | */ | |
4216 | writeq(val64, &bar0->rx_traffic_int); | |
4217 | for (i = 0; i < config->rx_ring_num; i++) { | |
4218 | rx_intr_handler(&mac_control->rings[i]); | |
1da177e4 LT |
4219 | } |
4220 | #endif | |
4221 | ||
863c11a9 AR |
4222 | /* |
4223 | * tx_traffic_int reg is an R1 register, writing all 1's | |
4224 | * will ensure that the actual interrupt causing bit get's | |
4225 | * cleared and hence a read can be avoided. | |
4226 | */ | |
4227 | writeq(val64, &bar0->tx_traffic_int); | |
fe113638 | 4228 | |
863c11a9 AR |
4229 | for (i = 0; i < config->tx_fifo_num; i++) |
4230 | tx_intr_handler(&mac_control->fifos[i]); | |
20346722 | 4231 | |
a371a07d K |
4232 | if (reason & GEN_INTR_TXPIC) |
4233 | s2io_txpic_intr_handle(sp); | |
20346722 K |
4234 | /* |
4235 | * If the Rx buffer count is below the panic threshold then | |
4236 | * reallocate the buffers from the interrupt handler itself, | |
1da177e4 LT |
4237 | * else schedule a tasklet to reallocate the buffers. |
4238 | */ | |
4239 | #ifndef CONFIG_S2IO_NAPI | |
75c30b13 AR |
4240 | for (i = 0; i < config->rx_ring_num; i++) |
4241 | s2io_chk_rx_buffers(sp, i); | |
1da177e4 | 4242 | #endif |
5d3213cc | 4243 | writeq(org_mask, &bar0->general_int_mask); |
7ba013ac | 4244 | atomic_dec(&sp->isr_cnt); |
1da177e4 LT |
4245 | return IRQ_HANDLED; |
4246 | } | |
4247 | ||
7ba013ac K |
4248 | /** |
4249 | * s2io_updt_stats - | |
4250 | */ | |
4251 | static void s2io_updt_stats(nic_t *sp) | |
4252 | { | |
4253 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4254 | u64 val64; | |
4255 | int cnt = 0; | |
4256 | ||
4257 | if (atomic_read(&sp->card_state) == CARD_UP) { | |
4258 | /* Apprx 30us on a 133 MHz bus */ | |
4259 | val64 = SET_UPDT_CLICKS(10) | | |
4260 | STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN; | |
4261 | writeq(val64, &bar0->stat_cfg); | |
4262 | do { | |
4263 | udelay(100); | |
4264 | val64 = readq(&bar0->stat_cfg); | |
4265 | if (!(val64 & BIT(0))) | |
4266 | break; | |
4267 | cnt++; | |
4268 | if (cnt == 5) | |
4269 | break; /* Updt failed */ | |
4270 | } while(1); | |
75c30b13 AR |
4271 | } else { |
4272 | memset(sp->mac_control.stats_info, 0, sizeof(StatInfo_t)); | |
7ba013ac K |
4273 | } |
4274 | } | |
4275 | ||
1da177e4 | 4276 | /** |
20346722 | 4277 | * s2io_get_stats - Updates the device statistics structure. |
1da177e4 LT |
4278 | * @dev : pointer to the device structure. |
4279 | * Description: | |
20346722 | 4280 | * This function updates the device statistics structure in the s2io_nic |
1da177e4 LT |
4281 | * structure and returns a pointer to the same. |
4282 | * Return value: | |
4283 | * pointer to the updated net_device_stats structure. | |
4284 | */ | |
4285 | ||
ac1f60db | 4286 | static struct net_device_stats *s2io_get_stats(struct net_device *dev) |
1da177e4 LT |
4287 | { |
4288 | nic_t *sp = dev->priv; | |
4289 | mac_info_t *mac_control; | |
4290 | struct config_param *config; | |
4291 | ||
20346722 | 4292 | |
1da177e4 LT |
4293 | mac_control = &sp->mac_control; |
4294 | config = &sp->config; | |
4295 | ||
7ba013ac K |
4296 | /* Configure Stats for immediate updt */ |
4297 | s2io_updt_stats(sp); | |
4298 | ||
4299 | sp->stats.tx_packets = | |
4300 | le32_to_cpu(mac_control->stats_info->tmac_frms); | |
20346722 K |
4301 | sp->stats.tx_errors = |
4302 | le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); | |
4303 | sp->stats.rx_errors = | |
4304 | le32_to_cpu(mac_control->stats_info->rmac_drop_frms); | |
4305 | sp->stats.multicast = | |
4306 | le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); | |
1da177e4 | 4307 | sp->stats.rx_length_errors = |
20346722 | 4308 | le32_to_cpu(mac_control->stats_info->rmac_long_frms); |
1da177e4 LT |
4309 | |
4310 | return (&sp->stats); | |
4311 | } | |
4312 | ||
4313 | /** | |
4314 | * s2io_set_multicast - entry point for multicast address enable/disable. | |
4315 | * @dev : pointer to the device structure | |
4316 | * Description: | |
20346722 K |
4317 | * This function is a driver entry point which gets called by the kernel |
4318 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1da177e4 LT |
4319 | * called to set/reset promiscuous mode. Depending on the deivce flag, we |
4320 | * determine, if multicast address must be enabled or if promiscuous mode | |
4321 | * is to be disabled etc. | |
4322 | * Return value: | |
4323 | * void. | |
4324 | */ | |
4325 | ||
4326 | static void s2io_set_multicast(struct net_device *dev) | |
4327 | { | |
4328 | int i, j, prev_cnt; | |
4329 | struct dev_mc_list *mclist; | |
4330 | nic_t *sp = dev->priv; | |
4331 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4332 | u64 val64 = 0, multi_mac = 0x010203040506ULL, mask = | |
4333 | 0xfeffffffffffULL; | |
4334 | u64 dis_addr = 0xffffffffffffULL, mac_addr = 0; | |
4335 | void __iomem *add; | |
4336 | ||
4337 | if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) { | |
4338 | /* Enable all Multicast addresses */ | |
4339 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac), | |
4340 | &bar0->rmac_addr_data0_mem); | |
4341 | writeq(RMAC_ADDR_DATA1_MEM_MASK(mask), | |
4342 | &bar0->rmac_addr_data1_mem); | |
4343 | val64 = RMAC_ADDR_CMD_MEM_WE | | |
4344 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4345 | RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET); | |
4346 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4347 | /* Wait till command completes */ | |
c92ca04b AR |
4348 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4349 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
4350 | |
4351 | sp->m_cast_flg = 1; | |
4352 | sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET; | |
4353 | } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) { | |
4354 | /* Disable all Multicast addresses */ | |
4355 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4356 | &bar0->rmac_addr_data0_mem); | |
5e25b9dd K |
4357 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0), |
4358 | &bar0->rmac_addr_data1_mem); | |
1da177e4 LT |
4359 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4360 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4361 | RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos); | |
4362 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4363 | /* Wait till command completes */ | |
c92ca04b AR |
4364 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4365 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
4366 | |
4367 | sp->m_cast_flg = 0; | |
4368 | sp->all_multi_pos = 0; | |
4369 | } | |
4370 | ||
4371 | if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) { | |
4372 | /* Put the NIC into promiscuous mode */ | |
4373 | add = &bar0->mac_cfg; | |
4374 | val64 = readq(&bar0->mac_cfg); | |
4375 | val64 |= MAC_CFG_RMAC_PROM_ENABLE; | |
4376 | ||
4377 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4378 | writel((u32) val64, add); | |
4379 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4380 | writel((u32) (val64 >> 32), (add + 4)); | |
4381 | ||
4382 | val64 = readq(&bar0->mac_cfg); | |
4383 | sp->promisc_flg = 1; | |
776bd20f | 4384 | DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n", |
1da177e4 LT |
4385 | dev->name); |
4386 | } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) { | |
4387 | /* Remove the NIC from promiscuous mode */ | |
4388 | add = &bar0->mac_cfg; | |
4389 | val64 = readq(&bar0->mac_cfg); | |
4390 | val64 &= ~MAC_CFG_RMAC_PROM_ENABLE; | |
4391 | ||
4392 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4393 | writel((u32) val64, add); | |
4394 | writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key); | |
4395 | writel((u32) (val64 >> 32), (add + 4)); | |
4396 | ||
4397 | val64 = readq(&bar0->mac_cfg); | |
4398 | sp->promisc_flg = 0; | |
776bd20f | 4399 | DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", |
1da177e4 LT |
4400 | dev->name); |
4401 | } | |
4402 | ||
4403 | /* Update individual M_CAST address list */ | |
4404 | if ((!sp->m_cast_flg) && dev->mc_count) { | |
4405 | if (dev->mc_count > | |
4406 | (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) { | |
4407 | DBG_PRINT(ERR_DBG, "%s: No more Rx filters ", | |
4408 | dev->name); | |
4409 | DBG_PRINT(ERR_DBG, "can be added, please enable "); | |
4410 | DBG_PRINT(ERR_DBG, "ALL_MULTI instead\n"); | |
4411 | return; | |
4412 | } | |
4413 | ||
4414 | prev_cnt = sp->mc_addr_count; | |
4415 | sp->mc_addr_count = dev->mc_count; | |
4416 | ||
4417 | /* Clear out the previous list of Mc in the H/W. */ | |
4418 | for (i = 0; i < prev_cnt; i++) { | |
4419 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr), | |
4420 | &bar0->rmac_addr_data0_mem); | |
4421 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4422 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4423 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4424 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4425 | RMAC_ADDR_CMD_MEM_OFFSET | |
4426 | (MAC_MC_ADDR_START_OFFSET + i); | |
4427 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4428 | ||
4429 | /* Wait for command completes */ | |
c92ca04b AR |
4430 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4431 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4432 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4433 | dev->name); | |
4434 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4435 | return; | |
4436 | } | |
4437 | } | |
4438 | ||
4439 | /* Create the new Rx filter list and update the same in H/W. */ | |
4440 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
4441 | i++, mclist = mclist->next) { | |
4442 | memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr, | |
4443 | ETH_ALEN); | |
a7a80d5a | 4444 | mac_addr = 0; |
1da177e4 LT |
4445 | for (j = 0; j < ETH_ALEN; j++) { |
4446 | mac_addr |= mclist->dmi_addr[j]; | |
4447 | mac_addr <<= 8; | |
4448 | } | |
4449 | mac_addr >>= 8; | |
4450 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4451 | &bar0->rmac_addr_data0_mem); | |
4452 | writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL), | |
20346722 | 4453 | &bar0->rmac_addr_data1_mem); |
1da177e4 LT |
4454 | val64 = RMAC_ADDR_CMD_MEM_WE | |
4455 | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4456 | RMAC_ADDR_CMD_MEM_OFFSET | |
4457 | (i + MAC_MC_ADDR_START_OFFSET); | |
4458 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4459 | ||
4460 | /* Wait for command completes */ | |
c92ca04b AR |
4461 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4462 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4463 | DBG_PRINT(ERR_DBG, "%s: Adding ", |
4464 | dev->name); | |
4465 | DBG_PRINT(ERR_DBG, "Multicasts failed\n"); | |
4466 | return; | |
4467 | } | |
4468 | } | |
4469 | } | |
4470 | } | |
4471 | ||
4472 | /** | |
20346722 | 4473 | * s2io_set_mac_addr - Programs the Xframe mac address |
1da177e4 LT |
4474 | * @dev : pointer to the device structure. |
4475 | * @addr: a uchar pointer to the new mac address which is to be set. | |
20346722 | 4476 | * Description : This procedure will program the Xframe to receive |
1da177e4 | 4477 | * frames with new Mac Address |
20346722 | 4478 | * Return value: SUCCESS on success and an appropriate (-)ve integer |
1da177e4 LT |
4479 | * as defined in errno.h file on failure. |
4480 | */ | |
4481 | ||
26df54bf | 4482 | static int s2io_set_mac_addr(struct net_device *dev, u8 * addr) |
1da177e4 LT |
4483 | { |
4484 | nic_t *sp = dev->priv; | |
4485 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4486 | register u64 val64, mac_addr = 0; | |
4487 | int i; | |
4488 | ||
20346722 | 4489 | /* |
1da177e4 LT |
4490 | * Set the new MAC address as the new unicast filter and reflect this |
4491 | * change on the device address registered with the OS. It will be | |
20346722 | 4492 | * at offset 0. |
1da177e4 LT |
4493 | */ |
4494 | for (i = 0; i < ETH_ALEN; i++) { | |
4495 | mac_addr <<= 8; | |
4496 | mac_addr |= addr[i]; | |
4497 | } | |
4498 | ||
4499 | writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr), | |
4500 | &bar0->rmac_addr_data0_mem); | |
4501 | ||
4502 | val64 = | |
4503 | RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
4504 | RMAC_ADDR_CMD_MEM_OFFSET(0); | |
4505 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
4506 | /* Wait till command completes */ | |
c92ca04b AR |
4507 | if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
4508 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) { | |
1da177e4 LT |
4509 | DBG_PRINT(ERR_DBG, "%s: set_mac_addr failed\n", dev->name); |
4510 | return FAILURE; | |
4511 | } | |
4512 | ||
4513 | return SUCCESS; | |
4514 | } | |
4515 | ||
4516 | /** | |
20346722 | 4517 | * s2io_ethtool_sset - Sets different link parameters. |
1da177e4 LT |
4518 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. |
4519 | * @info: pointer to the structure with parameters given by ethtool to set | |
4520 | * link information. | |
4521 | * Description: | |
20346722 | 4522 | * The function sets different link parameters provided by the user onto |
1da177e4 LT |
4523 | * the NIC. |
4524 | * Return value: | |
4525 | * 0 on success. | |
4526 | */ | |
4527 | ||
4528 | static int s2io_ethtool_sset(struct net_device *dev, | |
4529 | struct ethtool_cmd *info) | |
4530 | { | |
4531 | nic_t *sp = dev->priv; | |
4532 | if ((info->autoneg == AUTONEG_ENABLE) || | |
4533 | (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL)) | |
4534 | return -EINVAL; | |
4535 | else { | |
4536 | s2io_close(sp->dev); | |
4537 | s2io_open(sp->dev); | |
4538 | } | |
4539 | ||
4540 | return 0; | |
4541 | } | |
4542 | ||
4543 | /** | |
20346722 | 4544 | * s2io_ethtol_gset - Return link specific information. |
1da177e4 LT |
4545 | * @sp : private member of the device structure, pointer to the |
4546 | * s2io_nic structure. | |
4547 | * @info : pointer to the structure with parameters given by ethtool | |
4548 | * to return link information. | |
4549 | * Description: | |
4550 | * Returns link specific information like speed, duplex etc.. to ethtool. | |
4551 | * Return value : | |
4552 | * return 0 on success. | |
4553 | */ | |
4554 | ||
4555 | static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info) | |
4556 | { | |
4557 | nic_t *sp = dev->priv; | |
4558 | info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
4559 | info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); | |
4560 | info->port = PORT_FIBRE; | |
4561 | /* info->transceiver?? TODO */ | |
4562 | ||
4563 | if (netif_carrier_ok(sp->dev)) { | |
4564 | info->speed = 10000; | |
4565 | info->duplex = DUPLEX_FULL; | |
4566 | } else { | |
4567 | info->speed = -1; | |
4568 | info->duplex = -1; | |
4569 | } | |
4570 | ||
4571 | info->autoneg = AUTONEG_DISABLE; | |
4572 | return 0; | |
4573 | } | |
4574 | ||
4575 | /** | |
20346722 K |
4576 | * s2io_ethtool_gdrvinfo - Returns driver specific information. |
4577 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
4578 | * s2io_nic structure. |
4579 | * @info : pointer to the structure with parameters given by ethtool to | |
4580 | * return driver information. | |
4581 | * Description: | |
4582 | * Returns driver specefic information like name, version etc.. to ethtool. | |
4583 | * Return value: | |
4584 | * void | |
4585 | */ | |
4586 | ||
4587 | static void s2io_ethtool_gdrvinfo(struct net_device *dev, | |
4588 | struct ethtool_drvinfo *info) | |
4589 | { | |
4590 | nic_t *sp = dev->priv; | |
4591 | ||
dbc2309d JL |
4592 | strncpy(info->driver, s2io_driver_name, sizeof(info->driver)); |
4593 | strncpy(info->version, s2io_driver_version, sizeof(info->version)); | |
4594 | strncpy(info->fw_version, "", sizeof(info->fw_version)); | |
4595 | strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info)); | |
1da177e4 LT |
4596 | info->regdump_len = XENA_REG_SPACE; |
4597 | info->eedump_len = XENA_EEPROM_SPACE; | |
4598 | info->testinfo_len = S2IO_TEST_LEN; | |
4599 | info->n_stats = S2IO_STAT_LEN; | |
4600 | } | |
4601 | ||
4602 | /** | |
4603 | * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer. | |
20346722 | 4604 | * @sp: private member of the device structure, which is a pointer to the |
1da177e4 | 4605 | * s2io_nic structure. |
20346722 | 4606 | * @regs : pointer to the structure with parameters given by ethtool for |
1da177e4 LT |
4607 | * dumping the registers. |
4608 | * @reg_space: The input argumnet into which all the registers are dumped. | |
4609 | * Description: | |
4610 | * Dumps the entire register space of xFrame NIC into the user given | |
4611 | * buffer area. | |
4612 | * Return value : | |
4613 | * void . | |
4614 | */ | |
4615 | ||
4616 | static void s2io_ethtool_gregs(struct net_device *dev, | |
4617 | struct ethtool_regs *regs, void *space) | |
4618 | { | |
4619 | int i; | |
4620 | u64 reg; | |
4621 | u8 *reg_space = (u8 *) space; | |
4622 | nic_t *sp = dev->priv; | |
4623 | ||
4624 | regs->len = XENA_REG_SPACE; | |
4625 | regs->version = sp->pdev->subsystem_device; | |
4626 | ||
4627 | for (i = 0; i < regs->len; i += 8) { | |
4628 | reg = readq(sp->bar0 + i); | |
4629 | memcpy((reg_space + i), ®, 8); | |
4630 | } | |
4631 | } | |
4632 | ||
4633 | /** | |
4634 | * s2io_phy_id - timer function that alternates adapter LED. | |
20346722 | 4635 | * @data : address of the private member of the device structure, which |
1da177e4 | 4636 | * is a pointer to the s2io_nic structure, provided as an u32. |
20346722 K |
4637 | * Description: This is actually the timer function that alternates the |
4638 | * adapter LED bit of the adapter control bit to set/reset every time on | |
4639 | * invocation. The timer is set for 1/2 a second, hence tha NIC blinks | |
1da177e4 LT |
4640 | * once every second. |
4641 | */ | |
4642 | static void s2io_phy_id(unsigned long data) | |
4643 | { | |
4644 | nic_t *sp = (nic_t *) data; | |
4645 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4646 | u64 val64 = 0; | |
4647 | u16 subid; | |
4648 | ||
4649 | subid = sp->pdev->subsystem_device; | |
541ae68f K |
4650 | if ((sp->device_type == XFRAME_II_DEVICE) || |
4651 | ((subid & 0xFF) >= 0x07)) { | |
1da177e4 LT |
4652 | val64 = readq(&bar0->gpio_control); |
4653 | val64 ^= GPIO_CTRL_GPIO_0; | |
4654 | writeq(val64, &bar0->gpio_control); | |
4655 | } else { | |
4656 | val64 = readq(&bar0->adapter_control); | |
4657 | val64 ^= ADAPTER_LED_ON; | |
4658 | writeq(val64, &bar0->adapter_control); | |
4659 | } | |
4660 | ||
4661 | mod_timer(&sp->id_timer, jiffies + HZ / 2); | |
4662 | } | |
4663 | ||
4664 | /** | |
4665 | * s2io_ethtool_idnic - To physically identify the nic on the system. | |
4666 | * @sp : private member of the device structure, which is a pointer to the | |
4667 | * s2io_nic structure. | |
20346722 | 4668 | * @id : pointer to the structure with identification parameters given by |
1da177e4 LT |
4669 | * ethtool. |
4670 | * Description: Used to physically identify the NIC on the system. | |
20346722 | 4671 | * The Link LED will blink for a time specified by the user for |
1da177e4 | 4672 | * identification. |
20346722 | 4673 | * NOTE: The Link has to be Up to be able to blink the LED. Hence |
1da177e4 LT |
4674 | * identification is possible only if it's link is up. |
4675 | * Return value: | |
4676 | * int , returns 0 on success | |
4677 | */ | |
4678 | ||
4679 | static int s2io_ethtool_idnic(struct net_device *dev, u32 data) | |
4680 | { | |
4681 | u64 val64 = 0, last_gpio_ctrl_val; | |
4682 | nic_t *sp = dev->priv; | |
4683 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4684 | u16 subid; | |
4685 | ||
4686 | subid = sp->pdev->subsystem_device; | |
4687 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
541ae68f K |
4688 | if ((sp->device_type == XFRAME_I_DEVICE) && |
4689 | ((subid & 0xFF) < 0x07)) { | |
1da177e4 LT |
4690 | val64 = readq(&bar0->adapter_control); |
4691 | if (!(val64 & ADAPTER_CNTL_EN)) { | |
4692 | printk(KERN_ERR | |
4693 | "Adapter Link down, cannot blink LED\n"); | |
4694 | return -EFAULT; | |
4695 | } | |
4696 | } | |
4697 | if (sp->id_timer.function == NULL) { | |
4698 | init_timer(&sp->id_timer); | |
4699 | sp->id_timer.function = s2io_phy_id; | |
4700 | sp->id_timer.data = (unsigned long) sp; | |
4701 | } | |
4702 | mod_timer(&sp->id_timer, jiffies); | |
4703 | if (data) | |
20346722 | 4704 | msleep_interruptible(data * HZ); |
1da177e4 | 4705 | else |
20346722 | 4706 | msleep_interruptible(MAX_FLICKER_TIME); |
1da177e4 LT |
4707 | del_timer_sync(&sp->id_timer); |
4708 | ||
541ae68f | 4709 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) { |
1da177e4 LT |
4710 | writeq(last_gpio_ctrl_val, &bar0->gpio_control); |
4711 | last_gpio_ctrl_val = readq(&bar0->gpio_control); | |
4712 | } | |
4713 | ||
4714 | return 0; | |
4715 | } | |
4716 | ||
4717 | /** | |
4718 | * s2io_ethtool_getpause_data -Pause frame frame generation and reception. | |
20346722 K |
4719 | * @sp : private member of the device structure, which is a pointer to the |
4720 | * s2io_nic structure. | |
1da177e4 LT |
4721 | * @ep : pointer to the structure with pause parameters given by ethtool. |
4722 | * Description: | |
4723 | * Returns the Pause frame generation and reception capability of the NIC. | |
4724 | * Return value: | |
4725 | * void | |
4726 | */ | |
4727 | static void s2io_ethtool_getpause_data(struct net_device *dev, | |
4728 | struct ethtool_pauseparam *ep) | |
4729 | { | |
4730 | u64 val64; | |
4731 | nic_t *sp = dev->priv; | |
4732 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4733 | ||
4734 | val64 = readq(&bar0->rmac_pause_cfg); | |
4735 | if (val64 & RMAC_PAUSE_GEN_ENABLE) | |
4736 | ep->tx_pause = TRUE; | |
4737 | if (val64 & RMAC_PAUSE_RX_ENABLE) | |
4738 | ep->rx_pause = TRUE; | |
4739 | ep->autoneg = FALSE; | |
4740 | } | |
4741 | ||
4742 | /** | |
4743 | * s2io_ethtool_setpause_data - set/reset pause frame generation. | |
20346722 | 4744 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4745 | * s2io_nic structure. |
4746 | * @ep : pointer to the structure with pause parameters given by ethtool. | |
4747 | * Description: | |
4748 | * It can be used to set or reset Pause frame generation or reception | |
4749 | * support of the NIC. | |
4750 | * Return value: | |
4751 | * int, returns 0 on Success | |
4752 | */ | |
4753 | ||
4754 | static int s2io_ethtool_setpause_data(struct net_device *dev, | |
20346722 | 4755 | struct ethtool_pauseparam *ep) |
1da177e4 LT |
4756 | { |
4757 | u64 val64; | |
4758 | nic_t *sp = dev->priv; | |
4759 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4760 | ||
4761 | val64 = readq(&bar0->rmac_pause_cfg); | |
4762 | if (ep->tx_pause) | |
4763 | val64 |= RMAC_PAUSE_GEN_ENABLE; | |
4764 | else | |
4765 | val64 &= ~RMAC_PAUSE_GEN_ENABLE; | |
4766 | if (ep->rx_pause) | |
4767 | val64 |= RMAC_PAUSE_RX_ENABLE; | |
4768 | else | |
4769 | val64 &= ~RMAC_PAUSE_RX_ENABLE; | |
4770 | writeq(val64, &bar0->rmac_pause_cfg); | |
4771 | return 0; | |
4772 | } | |
4773 | ||
4774 | /** | |
4775 | * read_eeprom - reads 4 bytes of data from user given offset. | |
20346722 | 4776 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 LT |
4777 | * s2io_nic structure. |
4778 | * @off : offset at which the data must be written | |
4779 | * @data : Its an output parameter where the data read at the given | |
20346722 | 4780 | * offset is stored. |
1da177e4 | 4781 | * Description: |
20346722 | 4782 | * Will read 4 bytes of data from the user given offset and return the |
1da177e4 LT |
4783 | * read data. |
4784 | * NOTE: Will allow to read only part of the EEPROM visible through the | |
4785 | * I2C bus. | |
4786 | * Return value: | |
4787 | * -1 on failure and 0 on success. | |
4788 | */ | |
4789 | ||
4790 | #define S2IO_DEV_ID 5 | |
ad4ebed0 | 4791 | static int read_eeprom(nic_t * sp, int off, u64 * data) |
1da177e4 LT |
4792 | { |
4793 | int ret = -1; | |
4794 | u32 exit_cnt = 0; | |
4795 | u64 val64; | |
4796 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4797 | ||
ad4ebed0 | 4798 | if (sp->device_type == XFRAME_I_DEVICE) { |
4799 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
4800 | I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ | | |
4801 | I2C_CONTROL_CNTL_START; | |
4802 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
1da177e4 | 4803 | |
ad4ebed0 | 4804 | while (exit_cnt < 5) { |
4805 | val64 = readq(&bar0->i2c_control); | |
4806 | if (I2C_CONTROL_CNTL_END(val64)) { | |
4807 | *data = I2C_CONTROL_GET_DATA(val64); | |
4808 | ret = 0; | |
4809 | break; | |
4810 | } | |
4811 | msleep(50); | |
4812 | exit_cnt++; | |
1da177e4 | 4813 | } |
1da177e4 LT |
4814 | } |
4815 | ||
ad4ebed0 | 4816 | if (sp->device_type == XFRAME_II_DEVICE) { |
4817 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
4818 | SPI_CONTROL_BYTECNT(0x3) | | |
4819 | SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off); | |
4820 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4821 | val64 |= SPI_CONTROL_REQ; | |
4822 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4823 | while (exit_cnt < 5) { | |
4824 | val64 = readq(&bar0->spi_control); | |
4825 | if (val64 & SPI_CONTROL_NACK) { | |
4826 | ret = 1; | |
4827 | break; | |
4828 | } else if (val64 & SPI_CONTROL_DONE) { | |
4829 | *data = readq(&bar0->spi_data); | |
4830 | *data &= 0xffffff; | |
4831 | ret = 0; | |
4832 | break; | |
4833 | } | |
4834 | msleep(50); | |
4835 | exit_cnt++; | |
4836 | } | |
4837 | } | |
1da177e4 LT |
4838 | return ret; |
4839 | } | |
4840 | ||
4841 | /** | |
4842 | * write_eeprom - actually writes the relevant part of the data value. | |
4843 | * @sp : private member of the device structure, which is a pointer to the | |
4844 | * s2io_nic structure. | |
4845 | * @off : offset at which the data must be written | |
4846 | * @data : The data that is to be written | |
20346722 | 4847 | * @cnt : Number of bytes of the data that are actually to be written into |
1da177e4 LT |
4848 | * the Eeprom. (max of 3) |
4849 | * Description: | |
4850 | * Actually writes the relevant part of the data value into the Eeprom | |
4851 | * through the I2C bus. | |
4852 | * Return value: | |
4853 | * 0 on success, -1 on failure. | |
4854 | */ | |
4855 | ||
ad4ebed0 | 4856 | static int write_eeprom(nic_t * sp, int off, u64 data, int cnt) |
1da177e4 LT |
4857 | { |
4858 | int exit_cnt = 0, ret = -1; | |
4859 | u64 val64; | |
4860 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
4861 | ||
ad4ebed0 | 4862 | if (sp->device_type == XFRAME_I_DEVICE) { |
4863 | val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) | | |
4864 | I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) | | |
4865 | I2C_CONTROL_CNTL_START; | |
4866 | SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF); | |
4867 | ||
4868 | while (exit_cnt < 5) { | |
4869 | val64 = readq(&bar0->i2c_control); | |
4870 | if (I2C_CONTROL_CNTL_END(val64)) { | |
4871 | if (!(val64 & I2C_CONTROL_NACK)) | |
4872 | ret = 0; | |
4873 | break; | |
4874 | } | |
4875 | msleep(50); | |
4876 | exit_cnt++; | |
4877 | } | |
4878 | } | |
1da177e4 | 4879 | |
ad4ebed0 | 4880 | if (sp->device_type == XFRAME_II_DEVICE) { |
4881 | int write_cnt = (cnt == 8) ? 0 : cnt; | |
4882 | writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data); | |
4883 | ||
4884 | val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 | | |
4885 | SPI_CONTROL_BYTECNT(write_cnt) | | |
4886 | SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off); | |
4887 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4888 | val64 |= SPI_CONTROL_REQ; | |
4889 | SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF); | |
4890 | while (exit_cnt < 5) { | |
4891 | val64 = readq(&bar0->spi_control); | |
4892 | if (val64 & SPI_CONTROL_NACK) { | |
4893 | ret = 1; | |
4894 | break; | |
4895 | } else if (val64 & SPI_CONTROL_DONE) { | |
1da177e4 | 4896 | ret = 0; |
ad4ebed0 | 4897 | break; |
4898 | } | |
4899 | msleep(50); | |
4900 | exit_cnt++; | |
1da177e4 | 4901 | } |
1da177e4 | 4902 | } |
1da177e4 LT |
4903 | return ret; |
4904 | } | |
9dc737a7 AR |
4905 | static void s2io_vpd_read(nic_t *nic) |
4906 | { | |
b41477f3 AR |
4907 | u8 *vpd_data; |
4908 | u8 data; | |
9dc737a7 AR |
4909 | int i=0, cnt, fail = 0; |
4910 | int vpd_addr = 0x80; | |
4911 | ||
4912 | if (nic->device_type == XFRAME_II_DEVICE) { | |
4913 | strcpy(nic->product_name, "Xframe II 10GbE network adapter"); | |
4914 | vpd_addr = 0x80; | |
4915 | } | |
4916 | else { | |
4917 | strcpy(nic->product_name, "Xframe I 10GbE network adapter"); | |
4918 | vpd_addr = 0x50; | |
4919 | } | |
4920 | ||
b41477f3 AR |
4921 | vpd_data = kmalloc(256, GFP_KERNEL); |
4922 | if (!vpd_data) | |
4923 | return; | |
4924 | ||
9dc737a7 AR |
4925 | for (i = 0; i < 256; i +=4 ) { |
4926 | pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); | |
4927 | pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); | |
4928 | pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0); | |
4929 | for (cnt = 0; cnt <5; cnt++) { | |
4930 | msleep(2); | |
4931 | pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data); | |
4932 | if (data == 0x80) | |
4933 | break; | |
4934 | } | |
4935 | if (cnt >= 5) { | |
4936 | DBG_PRINT(ERR_DBG, "Read of VPD data failed\n"); | |
4937 | fail = 1; | |
4938 | break; | |
4939 | } | |
4940 | pci_read_config_dword(nic->pdev, (vpd_addr + 4), | |
4941 | (u32 *)&vpd_data[i]); | |
4942 | } | |
4943 | if ((!fail) && (vpd_data[1] < VPD_PRODUCT_NAME_LEN)) { | |
4944 | memset(nic->product_name, 0, vpd_data[1]); | |
4945 | memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); | |
4946 | } | |
b41477f3 | 4947 | kfree(vpd_data); |
9dc737a7 AR |
4948 | } |
4949 | ||
1da177e4 LT |
4950 | /** |
4951 | * s2io_ethtool_geeprom - reads the value stored in the Eeprom. | |
4952 | * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure. | |
20346722 | 4953 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
4954 | * containing all relevant information. |
4955 | * @data_buf : user defined value to be written into Eeprom. | |
4956 | * Description: Reads the values stored in the Eeprom at given offset | |
4957 | * for a given length. Stores these values int the input argument data | |
4958 | * buffer 'data_buf' and returns these to the caller (ethtool.) | |
4959 | * Return value: | |
4960 | * int 0 on success | |
4961 | */ | |
4962 | ||
4963 | static int s2io_ethtool_geeprom(struct net_device *dev, | |
20346722 | 4964 | struct ethtool_eeprom *eeprom, u8 * data_buf) |
1da177e4 | 4965 | { |
ad4ebed0 | 4966 | u32 i, valid; |
4967 | u64 data; | |
1da177e4 LT |
4968 | nic_t *sp = dev->priv; |
4969 | ||
4970 | eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16); | |
4971 | ||
4972 | if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE)) | |
4973 | eeprom->len = XENA_EEPROM_SPACE - eeprom->offset; | |
4974 | ||
4975 | for (i = 0; i < eeprom->len; i += 4) { | |
4976 | if (read_eeprom(sp, (eeprom->offset + i), &data)) { | |
4977 | DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n"); | |
4978 | return -EFAULT; | |
4979 | } | |
4980 | valid = INV(data); | |
4981 | memcpy((data_buf + i), &valid, 4); | |
4982 | } | |
4983 | return 0; | |
4984 | } | |
4985 | ||
4986 | /** | |
4987 | * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom | |
4988 | * @sp : private member of the device structure, which is a pointer to the | |
4989 | * s2io_nic structure. | |
20346722 | 4990 | * @eeprom : pointer to the user level structure provided by ethtool, |
1da177e4 LT |
4991 | * containing all relevant information. |
4992 | * @data_buf ; user defined value to be written into Eeprom. | |
4993 | * Description: | |
4994 | * Tries to write the user provided value in the Eeprom, at the offset | |
4995 | * given by the user. | |
4996 | * Return value: | |
4997 | * 0 on success, -EFAULT on failure. | |
4998 | */ | |
4999 | ||
5000 | static int s2io_ethtool_seeprom(struct net_device *dev, | |
5001 | struct ethtool_eeprom *eeprom, | |
5002 | u8 * data_buf) | |
5003 | { | |
5004 | int len = eeprom->len, cnt = 0; | |
ad4ebed0 | 5005 | u64 valid = 0, data; |
1da177e4 LT |
5006 | nic_t *sp = dev->priv; |
5007 | ||
5008 | if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) { | |
5009 | DBG_PRINT(ERR_DBG, | |
5010 | "ETHTOOL_WRITE_EEPROM Err: Magic value "); | |
5011 | DBG_PRINT(ERR_DBG, "is wrong, Its not 0x%x\n", | |
5012 | eeprom->magic); | |
5013 | return -EFAULT; | |
5014 | } | |
5015 | ||
5016 | while (len) { | |
5017 | data = (u32) data_buf[cnt] & 0x000000FF; | |
5018 | if (data) { | |
5019 | valid = (u32) (data << 24); | |
5020 | } else | |
5021 | valid = data; | |
5022 | ||
5023 | if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) { | |
5024 | DBG_PRINT(ERR_DBG, | |
5025 | "ETHTOOL_WRITE_EEPROM Err: Cannot "); | |
5026 | DBG_PRINT(ERR_DBG, | |
5027 | "write into the specified offset\n"); | |
5028 | return -EFAULT; | |
5029 | } | |
5030 | cnt++; | |
5031 | len--; | |
5032 | } | |
5033 | ||
5034 | return 0; | |
5035 | } | |
5036 | ||
5037 | /** | |
20346722 K |
5038 | * s2io_register_test - reads and writes into all clock domains. |
5039 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5040 | * s2io_nic structure. |
5041 | * @data : variable that returns the result of each of the test conducted b | |
5042 | * by the driver. | |
5043 | * Description: | |
5044 | * Read and write into all clock domains. The NIC has 3 clock domains, | |
5045 | * see that registers in all the three regions are accessible. | |
5046 | * Return value: | |
5047 | * 0 on success. | |
5048 | */ | |
5049 | ||
5050 | static int s2io_register_test(nic_t * sp, uint64_t * data) | |
5051 | { | |
5052 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
ad4ebed0 | 5053 | u64 val64 = 0, exp_val; |
1da177e4 LT |
5054 | int fail = 0; |
5055 | ||
20346722 K |
5056 | val64 = readq(&bar0->pif_rd_swapper_fb); |
5057 | if (val64 != 0x123456789abcdefULL) { | |
1da177e4 LT |
5058 | fail = 1; |
5059 | DBG_PRINT(INFO_DBG, "Read Test level 1 fails\n"); | |
5060 | } | |
5061 | ||
5062 | val64 = readq(&bar0->rmac_pause_cfg); | |
5063 | if (val64 != 0xc000ffff00000000ULL) { | |
5064 | fail = 1; | |
5065 | DBG_PRINT(INFO_DBG, "Read Test level 2 fails\n"); | |
5066 | } | |
5067 | ||
5068 | val64 = readq(&bar0->rx_queue_cfg); | |
ad4ebed0 | 5069 | if (sp->device_type == XFRAME_II_DEVICE) |
5070 | exp_val = 0x0404040404040404ULL; | |
5071 | else | |
5072 | exp_val = 0x0808080808080808ULL; | |
5073 | if (val64 != exp_val) { | |
1da177e4 LT |
5074 | fail = 1; |
5075 | DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n"); | |
5076 | } | |
5077 | ||
5078 | val64 = readq(&bar0->xgxs_efifo_cfg); | |
5079 | if (val64 != 0x000000001923141EULL) { | |
5080 | fail = 1; | |
5081 | DBG_PRINT(INFO_DBG, "Read Test level 4 fails\n"); | |
5082 | } | |
5083 | ||
5084 | val64 = 0x5A5A5A5A5A5A5A5AULL; | |
5085 | writeq(val64, &bar0->xmsi_data); | |
5086 | val64 = readq(&bar0->xmsi_data); | |
5087 | if (val64 != 0x5A5A5A5A5A5A5A5AULL) { | |
5088 | fail = 1; | |
5089 | DBG_PRINT(ERR_DBG, "Write Test level 1 fails\n"); | |
5090 | } | |
5091 | ||
5092 | val64 = 0xA5A5A5A5A5A5A5A5ULL; | |
5093 | writeq(val64, &bar0->xmsi_data); | |
5094 | val64 = readq(&bar0->xmsi_data); | |
5095 | if (val64 != 0xA5A5A5A5A5A5A5A5ULL) { | |
5096 | fail = 1; | |
5097 | DBG_PRINT(ERR_DBG, "Write Test level 2 fails\n"); | |
5098 | } | |
5099 | ||
5100 | *data = fail; | |
ad4ebed0 | 5101 | return fail; |
1da177e4 LT |
5102 | } |
5103 | ||
5104 | /** | |
20346722 | 5105 | * s2io_eeprom_test - to verify that EEprom in the xena can be programmed. |
1da177e4 LT |
5106 | * @sp : private member of the device structure, which is a pointer to the |
5107 | * s2io_nic structure. | |
5108 | * @data:variable that returns the result of each of the test conducted by | |
5109 | * the driver. | |
5110 | * Description: | |
20346722 | 5111 | * Verify that EEPROM in the xena can be programmed using I2C_CONTROL |
1da177e4 LT |
5112 | * register. |
5113 | * Return value: | |
5114 | * 0 on success. | |
5115 | */ | |
5116 | ||
5117 | static int s2io_eeprom_test(nic_t * sp, uint64_t * data) | |
5118 | { | |
5119 | int fail = 0; | |
ad4ebed0 | 5120 | u64 ret_data, org_4F0, org_7F0; |
5121 | u8 saved_4F0 = 0, saved_7F0 = 0; | |
5122 | struct net_device *dev = sp->dev; | |
1da177e4 LT |
5123 | |
5124 | /* Test Write Error at offset 0 */ | |
ad4ebed0 | 5125 | /* Note that SPI interface allows write access to all areas |
5126 | * of EEPROM. Hence doing all negative testing only for Xframe I. | |
5127 | */ | |
5128 | if (sp->device_type == XFRAME_I_DEVICE) | |
5129 | if (!write_eeprom(sp, 0, 0, 3)) | |
5130 | fail = 1; | |
5131 | ||
5132 | /* Save current values at offsets 0x4F0 and 0x7F0 */ | |
5133 | if (!read_eeprom(sp, 0x4F0, &org_4F0)) | |
5134 | saved_4F0 = 1; | |
5135 | if (!read_eeprom(sp, 0x7F0, &org_7F0)) | |
5136 | saved_7F0 = 1; | |
1da177e4 LT |
5137 | |
5138 | /* Test Write at offset 4f0 */ | |
ad4ebed0 | 5139 | if (write_eeprom(sp, 0x4F0, 0x012345, 3)) |
1da177e4 LT |
5140 | fail = 1; |
5141 | if (read_eeprom(sp, 0x4F0, &ret_data)) | |
5142 | fail = 1; | |
5143 | ||
ad4ebed0 | 5144 | if (ret_data != 0x012345) { |
26b7625c AM |
5145 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. " |
5146 | "Data written %llx Data read %llx\n", | |
5147 | dev->name, (unsigned long long)0x12345, | |
5148 | (unsigned long long)ret_data); | |
1da177e4 | 5149 | fail = 1; |
ad4ebed0 | 5150 | } |
1da177e4 LT |
5151 | |
5152 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5153 | write_eeprom(sp, 0x4F0, 0xFFFFFF, 3); |
1da177e4 LT |
5154 | |
5155 | /* Test Write Request Error at offset 0x7c */ | |
ad4ebed0 | 5156 | if (sp->device_type == XFRAME_I_DEVICE) |
5157 | if (!write_eeprom(sp, 0x07C, 0, 3)) | |
5158 | fail = 1; | |
1da177e4 | 5159 | |
ad4ebed0 | 5160 | /* Test Write Request at offset 0x7f0 */ |
5161 | if (write_eeprom(sp, 0x7F0, 0x012345, 3)) | |
1da177e4 | 5162 | fail = 1; |
ad4ebed0 | 5163 | if (read_eeprom(sp, 0x7F0, &ret_data)) |
1da177e4 LT |
5164 | fail = 1; |
5165 | ||
ad4ebed0 | 5166 | if (ret_data != 0x012345) { |
26b7625c AM |
5167 | DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. " |
5168 | "Data written %llx Data read %llx\n", | |
5169 | dev->name, (unsigned long long)0x12345, | |
5170 | (unsigned long long)ret_data); | |
1da177e4 | 5171 | fail = 1; |
ad4ebed0 | 5172 | } |
1da177e4 LT |
5173 | |
5174 | /* Reset the EEPROM data go FFFF */ | |
ad4ebed0 | 5175 | write_eeprom(sp, 0x7F0, 0xFFFFFF, 3); |
1da177e4 | 5176 | |
ad4ebed0 | 5177 | if (sp->device_type == XFRAME_I_DEVICE) { |
5178 | /* Test Write Error at offset 0x80 */ | |
5179 | if (!write_eeprom(sp, 0x080, 0, 3)) | |
5180 | fail = 1; | |
1da177e4 | 5181 | |
ad4ebed0 | 5182 | /* Test Write Error at offset 0xfc */ |
5183 | if (!write_eeprom(sp, 0x0FC, 0, 3)) | |
5184 | fail = 1; | |
1da177e4 | 5185 | |
ad4ebed0 | 5186 | /* Test Write Error at offset 0x100 */ |
5187 | if (!write_eeprom(sp, 0x100, 0, 3)) | |
5188 | fail = 1; | |
1da177e4 | 5189 | |
ad4ebed0 | 5190 | /* Test Write Error at offset 4ec */ |
5191 | if (!write_eeprom(sp, 0x4EC, 0, 3)) | |
5192 | fail = 1; | |
5193 | } | |
5194 | ||
5195 | /* Restore values at offsets 0x4F0 and 0x7F0 */ | |
5196 | if (saved_4F0) | |
5197 | write_eeprom(sp, 0x4F0, org_4F0, 3); | |
5198 | if (saved_7F0) | |
5199 | write_eeprom(sp, 0x7F0, org_7F0, 3); | |
1da177e4 LT |
5200 | |
5201 | *data = fail; | |
ad4ebed0 | 5202 | return fail; |
1da177e4 LT |
5203 | } |
5204 | ||
5205 | /** | |
5206 | * s2io_bist_test - invokes the MemBist test of the card . | |
20346722 | 5207 | * @sp : private member of the device structure, which is a pointer to the |
1da177e4 | 5208 | * s2io_nic structure. |
20346722 | 5209 | * @data:variable that returns the result of each of the test conducted by |
1da177e4 LT |
5210 | * the driver. |
5211 | * Description: | |
5212 | * This invokes the MemBist test of the card. We give around | |
5213 | * 2 secs time for the Test to complete. If it's still not complete | |
20346722 | 5214 | * within this peiod, we consider that the test failed. |
1da177e4 LT |
5215 | * Return value: |
5216 | * 0 on success and -1 on failure. | |
5217 | */ | |
5218 | ||
5219 | static int s2io_bist_test(nic_t * sp, uint64_t * data) | |
5220 | { | |
5221 | u8 bist = 0; | |
5222 | int cnt = 0, ret = -1; | |
5223 | ||
5224 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5225 | bist |= PCI_BIST_START; | |
5226 | pci_write_config_word(sp->pdev, PCI_BIST, bist); | |
5227 | ||
5228 | while (cnt < 20) { | |
5229 | pci_read_config_byte(sp->pdev, PCI_BIST, &bist); | |
5230 | if (!(bist & PCI_BIST_START)) { | |
5231 | *data = (bist & PCI_BIST_CODE_MASK); | |
5232 | ret = 0; | |
5233 | break; | |
5234 | } | |
5235 | msleep(100); | |
5236 | cnt++; | |
5237 | } | |
5238 | ||
5239 | return ret; | |
5240 | } | |
5241 | ||
5242 | /** | |
20346722 K |
5243 | * s2io-link_test - verifies the link state of the nic |
5244 | * @sp ; private member of the device structure, which is a pointer to the | |
1da177e4 LT |
5245 | * s2io_nic structure. |
5246 | * @data: variable that returns the result of each of the test conducted by | |
5247 | * the driver. | |
5248 | * Description: | |
20346722 | 5249 | * The function verifies the link state of the NIC and updates the input |
1da177e4 LT |
5250 | * argument 'data' appropriately. |
5251 | * Return value: | |
5252 | * 0 on success. | |
5253 | */ | |
5254 | ||
5255 | static int s2io_link_test(nic_t * sp, uint64_t * data) | |
5256 | { | |
5257 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
5258 | u64 val64; | |
5259 | ||
5260 | val64 = readq(&bar0->adapter_status); | |
c92ca04b | 5261 | if(!(LINK_IS_UP(val64))) |
1da177e4 | 5262 | *data = 1; |
c92ca04b AR |
5263 | else |
5264 | *data = 0; | |
1da177e4 | 5265 | |
b41477f3 | 5266 | return *data; |
1da177e4 LT |
5267 | } |
5268 | ||
5269 | /** | |
20346722 K |
5270 | * s2io_rldram_test - offline test for access to the RldRam chip on the NIC |
5271 | * @sp - private member of the device structure, which is a pointer to the | |
1da177e4 | 5272 | * s2io_nic structure. |
20346722 | 5273 | * @data - variable that returns the result of each of the test |
1da177e4 LT |
5274 | * conducted by the driver. |
5275 | * Description: | |
20346722 | 5276 | * This is one of the offline test that tests the read and write |
1da177e4 LT |
5277 | * access to the RldRam chip on the NIC. |
5278 | * Return value: | |
5279 | * 0 on success. | |
5280 | */ | |
5281 | ||
5282 | static int s2io_rldram_test(nic_t * sp, uint64_t * data) | |
5283 | { | |
5284 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
5285 | u64 val64; | |
ad4ebed0 | 5286 | int cnt, iteration = 0, test_fail = 0; |
1da177e4 LT |
5287 | |
5288 | val64 = readq(&bar0->adapter_control); | |
5289 | val64 &= ~ADAPTER_ECC_EN; | |
5290 | writeq(val64, &bar0->adapter_control); | |
5291 | ||
5292 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5293 | val64 |= MC_RLDRAM_TEST_MODE; | |
ad4ebed0 | 5294 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); |
1da177e4 LT |
5295 | |
5296 | val64 = readq(&bar0->mc_rldram_mrs); | |
5297 | val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE; | |
5298 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5299 | ||
5300 | val64 |= MC_RLDRAM_MRS_ENABLE; | |
5301 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF); | |
5302 | ||
5303 | while (iteration < 2) { | |
5304 | val64 = 0x55555555aaaa0000ULL; | |
5305 | if (iteration == 1) { | |
5306 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5307 | } | |
5308 | writeq(val64, &bar0->mc_rldram_test_d0); | |
5309 | ||
5310 | val64 = 0xaaaa5a5555550000ULL; | |
5311 | if (iteration == 1) { | |
5312 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5313 | } | |
5314 | writeq(val64, &bar0->mc_rldram_test_d1); | |
5315 | ||
5316 | val64 = 0x55aaaaaaaa5a0000ULL; | |
5317 | if (iteration == 1) { | |
5318 | val64 ^= 0xFFFFFFFFFFFF0000ULL; | |
5319 | } | |
5320 | writeq(val64, &bar0->mc_rldram_test_d2); | |
5321 | ||
ad4ebed0 | 5322 | val64 = (u64) (0x0000003ffffe0100ULL); |
1da177e4 LT |
5323 | writeq(val64, &bar0->mc_rldram_test_add); |
5324 | ||
ad4ebed0 | 5325 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE | |
5326 | MC_RLDRAM_TEST_GO; | |
5327 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5328 | |
5329 | for (cnt = 0; cnt < 5; cnt++) { | |
5330 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5331 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5332 | break; | |
5333 | msleep(200); | |
5334 | } | |
5335 | ||
5336 | if (cnt == 5) | |
5337 | break; | |
5338 | ||
ad4ebed0 | 5339 | val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO; |
5340 | SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF); | |
1da177e4 LT |
5341 | |
5342 | for (cnt = 0; cnt < 5; cnt++) { | |
5343 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
5344 | if (val64 & MC_RLDRAM_TEST_DONE) | |
5345 | break; | |
5346 | msleep(500); | |
5347 | } | |
5348 | ||
5349 | if (cnt == 5) | |
5350 | break; | |
5351 | ||
5352 | val64 = readq(&bar0->mc_rldram_test_ctrl); | |
ad4ebed0 | 5353 | if (!(val64 & MC_RLDRAM_TEST_PASS)) |
5354 | test_fail = 1; | |
1da177e4 LT |
5355 | |
5356 | iteration++; | |
5357 | } | |
5358 | ||
ad4ebed0 | 5359 | *data = test_fail; |
1da177e4 | 5360 | |
ad4ebed0 | 5361 | /* Bring the adapter out of test mode */ |
5362 | SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF); | |
5363 | ||
5364 | return test_fail; | |
1da177e4 LT |
5365 | } |
5366 | ||
5367 | /** | |
5368 | * s2io_ethtool_test - conducts 6 tsets to determine the health of card. | |
5369 | * @sp : private member of the device structure, which is a pointer to the | |
5370 | * s2io_nic structure. | |
5371 | * @ethtest : pointer to a ethtool command specific structure that will be | |
5372 | * returned to the user. | |
20346722 | 5373 | * @data : variable that returns the result of each of the test |
1da177e4 LT |
5374 | * conducted by the driver. |
5375 | * Description: | |
5376 | * This function conducts 6 tests ( 4 offline and 2 online) to determine | |
5377 | * the health of the card. | |
5378 | * Return value: | |
5379 | * void | |
5380 | */ | |
5381 | ||
5382 | static void s2io_ethtool_test(struct net_device *dev, | |
5383 | struct ethtool_test *ethtest, | |
5384 | uint64_t * data) | |
5385 | { | |
5386 | nic_t *sp = dev->priv; | |
5387 | int orig_state = netif_running(sp->dev); | |
5388 | ||
5389 | if (ethtest->flags == ETH_TEST_FL_OFFLINE) { | |
5390 | /* Offline Tests. */ | |
20346722 | 5391 | if (orig_state) |
1da177e4 | 5392 | s2io_close(sp->dev); |
1da177e4 LT |
5393 | |
5394 | if (s2io_register_test(sp, &data[0])) | |
5395 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5396 | ||
5397 | s2io_reset(sp); | |
1da177e4 LT |
5398 | |
5399 | if (s2io_rldram_test(sp, &data[3])) | |
5400 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5401 | ||
5402 | s2io_reset(sp); | |
1da177e4 LT |
5403 | |
5404 | if (s2io_eeprom_test(sp, &data[1])) | |
5405 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5406 | ||
5407 | if (s2io_bist_test(sp, &data[4])) | |
5408 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5409 | ||
5410 | if (orig_state) | |
5411 | s2io_open(sp->dev); | |
5412 | ||
5413 | data[2] = 0; | |
5414 | } else { | |
5415 | /* Online Tests. */ | |
5416 | if (!orig_state) { | |
5417 | DBG_PRINT(ERR_DBG, | |
5418 | "%s: is not up, cannot run test\n", | |
5419 | dev->name); | |
5420 | data[0] = -1; | |
5421 | data[1] = -1; | |
5422 | data[2] = -1; | |
5423 | data[3] = -1; | |
5424 | data[4] = -1; | |
5425 | } | |
5426 | ||
5427 | if (s2io_link_test(sp, &data[2])) | |
5428 | ethtest->flags |= ETH_TEST_FL_FAILED; | |
5429 | ||
5430 | data[0] = 0; | |
5431 | data[1] = 0; | |
5432 | data[3] = 0; | |
5433 | data[4] = 0; | |
5434 | } | |
5435 | } | |
5436 | ||
5437 | static void s2io_get_ethtool_stats(struct net_device *dev, | |
5438 | struct ethtool_stats *estats, | |
5439 | u64 * tmp_stats) | |
5440 | { | |
5441 | int i = 0; | |
5442 | nic_t *sp = dev->priv; | |
5443 | StatInfo_t *stat_info = sp->mac_control.stats_info; | |
5444 | ||
7ba013ac | 5445 | s2io_updt_stats(sp); |
541ae68f K |
5446 | tmp_stats[i++] = |
5447 | (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32 | | |
5448 | le32_to_cpu(stat_info->tmac_frms); | |
5449 | tmp_stats[i++] = | |
5450 | (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 | | |
5451 | le32_to_cpu(stat_info->tmac_data_octets); | |
1da177e4 | 5452 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms); |
541ae68f K |
5453 | tmp_stats[i++] = |
5454 | (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 | | |
5455 | le32_to_cpu(stat_info->tmac_mcst_frms); | |
5456 | tmp_stats[i++] = | |
5457 | (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 | | |
5458 | le32_to_cpu(stat_info->tmac_bcst_frms); | |
1da177e4 | 5459 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms); |
bd1034f0 AR |
5460 | tmp_stats[i++] = |
5461 | (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 | | |
5462 | le32_to_cpu(stat_info->tmac_ttl_octets); | |
5463 | tmp_stats[i++] = | |
5464 | (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 | | |
5465 | le32_to_cpu(stat_info->tmac_ucst_frms); | |
5466 | tmp_stats[i++] = | |
5467 | (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 | | |
5468 | le32_to_cpu(stat_info->tmac_nucst_frms); | |
541ae68f K |
5469 | tmp_stats[i++] = |
5470 | (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 | | |
5471 | le32_to_cpu(stat_info->tmac_any_err_frms); | |
bd1034f0 | 5472 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets); |
1da177e4 | 5473 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets); |
541ae68f K |
5474 | tmp_stats[i++] = |
5475 | (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 | | |
5476 | le32_to_cpu(stat_info->tmac_vld_ip); | |
5477 | tmp_stats[i++] = | |
5478 | (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 | | |
5479 | le32_to_cpu(stat_info->tmac_drop_ip); | |
5480 | tmp_stats[i++] = | |
5481 | (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 | | |
5482 | le32_to_cpu(stat_info->tmac_icmp); | |
5483 | tmp_stats[i++] = | |
5484 | (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 | | |
5485 | le32_to_cpu(stat_info->tmac_rst_tcp); | |
1da177e4 | 5486 | tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp); |
541ae68f K |
5487 | tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 | |
5488 | le32_to_cpu(stat_info->tmac_udp); | |
5489 | tmp_stats[i++] = | |
5490 | (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 | | |
5491 | le32_to_cpu(stat_info->rmac_vld_frms); | |
5492 | tmp_stats[i++] = | |
5493 | (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 | | |
5494 | le32_to_cpu(stat_info->rmac_data_octets); | |
1da177e4 LT |
5495 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms); |
5496 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms); | |
541ae68f K |
5497 | tmp_stats[i++] = |
5498 | (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 | | |
5499 | le32_to_cpu(stat_info->rmac_vld_mcst_frms); | |
5500 | tmp_stats[i++] = | |
5501 | (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 | | |
5502 | le32_to_cpu(stat_info->rmac_vld_bcst_frms); | |
1da177e4 | 5503 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms); |
bd1034f0 | 5504 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms); |
1da177e4 LT |
5505 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms); |
5506 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms); | |
bd1034f0 AR |
5507 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms); |
5508 | tmp_stats[i++] = | |
5509 | (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 | | |
5510 | le32_to_cpu(stat_info->rmac_ttl_octets); | |
5511 | tmp_stats[i++] = | |
5512 | (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow) | |
5513 | << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms); | |
5514 | tmp_stats[i++] = | |
5515 | (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow) | |
5516 | << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms); | |
541ae68f K |
5517 | tmp_stats[i++] = |
5518 | (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 | | |
5519 | le32_to_cpu(stat_info->rmac_discarded_frms); | |
bd1034f0 AR |
5520 | tmp_stats[i++] = |
5521 | (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow) | |
5522 | << 32 | le32_to_cpu(stat_info->rmac_drop_events); | |
5523 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets); | |
5524 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms); | |
541ae68f K |
5525 | tmp_stats[i++] = |
5526 | (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 | | |
5527 | le32_to_cpu(stat_info->rmac_usized_frms); | |
5528 | tmp_stats[i++] = | |
5529 | (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 | | |
5530 | le32_to_cpu(stat_info->rmac_osized_frms); | |
5531 | tmp_stats[i++] = | |
5532 | (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 | | |
5533 | le32_to_cpu(stat_info->rmac_frag_frms); | |
5534 | tmp_stats[i++] = | |
5535 | (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 | | |
5536 | le32_to_cpu(stat_info->rmac_jabber_frms); | |
bd1034f0 AR |
5537 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms); |
5538 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms); | |
5539 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms); | |
5540 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms); | |
5541 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms); | |
5542 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms); | |
5543 | tmp_stats[i++] = | |
5544 | (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 | | |
541ae68f | 5545 | le32_to_cpu(stat_info->rmac_ip); |
1da177e4 LT |
5546 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets); |
5547 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip); | |
bd1034f0 AR |
5548 | tmp_stats[i++] = |
5549 | (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 | | |
541ae68f | 5550 | le32_to_cpu(stat_info->rmac_drop_ip); |
bd1034f0 AR |
5551 | tmp_stats[i++] = |
5552 | (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 | | |
541ae68f | 5553 | le32_to_cpu(stat_info->rmac_icmp); |
1da177e4 | 5554 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp); |
bd1034f0 AR |
5555 | tmp_stats[i++] = |
5556 | (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 | | |
541ae68f K |
5557 | le32_to_cpu(stat_info->rmac_udp); |
5558 | tmp_stats[i++] = | |
5559 | (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 | | |
5560 | le32_to_cpu(stat_info->rmac_err_drp_udp); | |
bd1034f0 AR |
5561 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym); |
5562 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0); | |
5563 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1); | |
5564 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2); | |
5565 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3); | |
5566 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4); | |
5567 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5); | |
5568 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6); | |
5569 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7); | |
5570 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0); | |
5571 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1); | |
5572 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2); | |
5573 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3); | |
5574 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4); | |
5575 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5); | |
5576 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6); | |
5577 | tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7); | |
541ae68f K |
5578 | tmp_stats[i++] = |
5579 | (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 | | |
5580 | le32_to_cpu(stat_info->rmac_pause_cnt); | |
bd1034f0 AR |
5581 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt); |
5582 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt); | |
541ae68f K |
5583 | tmp_stats[i++] = |
5584 | (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 | | |
5585 | le32_to_cpu(stat_info->rmac_accepted_ip); | |
1da177e4 | 5586 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp); |
bd1034f0 AR |
5587 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt); |
5588 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt); | |
5589 | tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt); | |
5590 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt); | |
5591 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt); | |
5592 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt); | |
5593 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt); | |
5594 | tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt); | |
5595 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt); | |
5596 | tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt); | |
5597 | tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt); | |
5598 | tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt); | |
5599 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt); | |
5600 | tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt); | |
5601 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt); | |
5602 | tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt); | |
5603 | tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt); | |
5604 | tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt); | |
5605 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms); | |
5606 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms); | |
5607 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_8192_max_frms); | |
5608 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms); | |
5609 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms); | |
5610 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms); | |
5611 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms); | |
5612 | tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms); | |
5613 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard); | |
5614 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard); | |
5615 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard); | |
5616 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard); | |
5617 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard); | |
5618 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard); | |
5619 | tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard); | |
5620 | tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt); | |
7ba013ac K |
5621 | tmp_stats[i++] = 0; |
5622 | tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs; | |
5623 | tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs; | |
bd1034f0 AR |
5624 | tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt; |
5625 | tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt; | |
5626 | tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt; | |
5627 | tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt; | |
5628 | tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt; | |
5629 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high; | |
5630 | tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low; | |
5631 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high; | |
5632 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low; | |
5633 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high; | |
5634 | tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low; | |
5635 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high; | |
5636 | tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low; | |
5637 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high; | |
5638 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low; | |
5639 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high; | |
5640 | tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low; | |
7d3d0439 RA |
5641 | tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt; |
5642 | tmp_stats[i++] = stat_info->sw_stat.sending_both; | |
5643 | tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts; | |
5644 | tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts; | |
fe931395 | 5645 | if (stat_info->sw_stat.num_aggregations) { |
bd1034f0 AR |
5646 | u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated; |
5647 | int count = 0; | |
5648 | /* | |
5649 | * Since 64-bit divide does not work on all platforms, | |
5650 | * do repeated subtraction. | |
5651 | */ | |
5652 | while (tmp >= stat_info->sw_stat.num_aggregations) { | |
5653 | tmp -= stat_info->sw_stat.num_aggregations; | |
5654 | count++; | |
5655 | } | |
5656 | tmp_stats[i++] = count; | |
fe931395 | 5657 | } |
bd1034f0 AR |
5658 | else |
5659 | tmp_stats[i++] = 0; | |
1da177e4 LT |
5660 | } |
5661 | ||
ac1f60db | 5662 | static int s2io_ethtool_get_regs_len(struct net_device *dev) |
1da177e4 LT |
5663 | { |
5664 | return (XENA_REG_SPACE); | |
5665 | } | |
5666 | ||
5667 | ||
ac1f60db | 5668 | static u32 s2io_ethtool_get_rx_csum(struct net_device * dev) |
1da177e4 LT |
5669 | { |
5670 | nic_t *sp = dev->priv; | |
5671 | ||
5672 | return (sp->rx_csum); | |
5673 | } | |
ac1f60db AB |
5674 | |
5675 | static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
1da177e4 LT |
5676 | { |
5677 | nic_t *sp = dev->priv; | |
5678 | ||
5679 | if (data) | |
5680 | sp->rx_csum = 1; | |
5681 | else | |
5682 | sp->rx_csum = 0; | |
5683 | ||
5684 | return 0; | |
5685 | } | |
ac1f60db AB |
5686 | |
5687 | static int s2io_get_eeprom_len(struct net_device *dev) | |
1da177e4 LT |
5688 | { |
5689 | return (XENA_EEPROM_SPACE); | |
5690 | } | |
5691 | ||
ac1f60db | 5692 | static int s2io_ethtool_self_test_count(struct net_device *dev) |
1da177e4 LT |
5693 | { |
5694 | return (S2IO_TEST_LEN); | |
5695 | } | |
ac1f60db AB |
5696 | |
5697 | static void s2io_ethtool_get_strings(struct net_device *dev, | |
5698 | u32 stringset, u8 * data) | |
1da177e4 LT |
5699 | { |
5700 | switch (stringset) { | |
5701 | case ETH_SS_TEST: | |
5702 | memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN); | |
5703 | break; | |
5704 | case ETH_SS_STATS: | |
5705 | memcpy(data, ðtool_stats_keys, | |
5706 | sizeof(ethtool_stats_keys)); | |
5707 | } | |
5708 | } | |
1da177e4 LT |
5709 | static int s2io_ethtool_get_stats_count(struct net_device *dev) |
5710 | { | |
5711 | return (S2IO_STAT_LEN); | |
5712 | } | |
5713 | ||
ac1f60db | 5714 | static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 LT |
5715 | { |
5716 | if (data) | |
5717 | dev->features |= NETIF_F_IP_CSUM; | |
5718 | else | |
5719 | dev->features &= ~NETIF_F_IP_CSUM; | |
5720 | ||
5721 | return 0; | |
5722 | } | |
5723 | ||
75c30b13 AR |
5724 | static u32 s2io_ethtool_op_get_tso(struct net_device *dev) |
5725 | { | |
5726 | return (dev->features & NETIF_F_TSO) != 0; | |
5727 | } | |
5728 | static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) | |
5729 | { | |
5730 | if (data) | |
5731 | dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); | |
5732 | else | |
5733 | dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
5734 | ||
5735 | return 0; | |
5736 | } | |
1da177e4 LT |
5737 | |
5738 | static struct ethtool_ops netdev_ethtool_ops = { | |
5739 | .get_settings = s2io_ethtool_gset, | |
5740 | .set_settings = s2io_ethtool_sset, | |
5741 | .get_drvinfo = s2io_ethtool_gdrvinfo, | |
5742 | .get_regs_len = s2io_ethtool_get_regs_len, | |
5743 | .get_regs = s2io_ethtool_gregs, | |
5744 | .get_link = ethtool_op_get_link, | |
5745 | .get_eeprom_len = s2io_get_eeprom_len, | |
5746 | .get_eeprom = s2io_ethtool_geeprom, | |
5747 | .set_eeprom = s2io_ethtool_seeprom, | |
5748 | .get_pauseparam = s2io_ethtool_getpause_data, | |
5749 | .set_pauseparam = s2io_ethtool_setpause_data, | |
5750 | .get_rx_csum = s2io_ethtool_get_rx_csum, | |
5751 | .set_rx_csum = s2io_ethtool_set_rx_csum, | |
5752 | .get_tx_csum = ethtool_op_get_tx_csum, | |
5753 | .set_tx_csum = s2io_ethtool_op_set_tx_csum, | |
5754 | .get_sg = ethtool_op_get_sg, | |
5755 | .set_sg = ethtool_op_set_sg, | |
5756 | #ifdef NETIF_F_TSO | |
75c30b13 AR |
5757 | .get_tso = s2io_ethtool_op_get_tso, |
5758 | .set_tso = s2io_ethtool_op_set_tso, | |
1da177e4 | 5759 | #endif |
fed5eccd AR |
5760 | .get_ufo = ethtool_op_get_ufo, |
5761 | .set_ufo = ethtool_op_set_ufo, | |
1da177e4 LT |
5762 | .self_test_count = s2io_ethtool_self_test_count, |
5763 | .self_test = s2io_ethtool_test, | |
5764 | .get_strings = s2io_ethtool_get_strings, | |
5765 | .phys_id = s2io_ethtool_idnic, | |
5766 | .get_stats_count = s2io_ethtool_get_stats_count, | |
5767 | .get_ethtool_stats = s2io_get_ethtool_stats | |
5768 | }; | |
5769 | ||
5770 | /** | |
20346722 | 5771 | * s2io_ioctl - Entry point for the Ioctl |
1da177e4 LT |
5772 | * @dev : Device pointer. |
5773 | * @ifr : An IOCTL specefic structure, that can contain a pointer to | |
5774 | * a proprietary structure used to pass information to the driver. | |
5775 | * @cmd : This is used to distinguish between the different commands that | |
5776 | * can be passed to the IOCTL functions. | |
5777 | * Description: | |
20346722 K |
5778 | * Currently there are no special functionality supported in IOCTL, hence |
5779 | * function always return EOPNOTSUPPORTED | |
1da177e4 LT |
5780 | */ |
5781 | ||
ac1f60db | 5782 | static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 LT |
5783 | { |
5784 | return -EOPNOTSUPP; | |
5785 | } | |
5786 | ||
5787 | /** | |
5788 | * s2io_change_mtu - entry point to change MTU size for the device. | |
5789 | * @dev : device pointer. | |
5790 | * @new_mtu : the new MTU size for the device. | |
5791 | * Description: A driver entry point to change MTU size for the device. | |
5792 | * Before changing the MTU the device must be stopped. | |
5793 | * Return value: | |
5794 | * 0 on success and an appropriate (-)ve integer as defined in errno.h | |
5795 | * file on failure. | |
5796 | */ | |
5797 | ||
ac1f60db | 5798 | static int s2io_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 LT |
5799 | { |
5800 | nic_t *sp = dev->priv; | |
1da177e4 LT |
5801 | |
5802 | if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { | |
5803 | DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", | |
5804 | dev->name); | |
5805 | return -EPERM; | |
5806 | } | |
5807 | ||
1da177e4 | 5808 | dev->mtu = new_mtu; |
d8892c6e | 5809 | if (netif_running(dev)) { |
e6a8fee2 | 5810 | s2io_card_down(sp); |
d8892c6e K |
5811 | netif_stop_queue(dev); |
5812 | if (s2io_card_up(sp)) { | |
5813 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
5814 | __FUNCTION__); | |
5815 | } | |
5816 | if (netif_queue_stopped(dev)) | |
5817 | netif_wake_queue(dev); | |
5818 | } else { /* Device is down */ | |
5819 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
5820 | u64 val64 = new_mtu; | |
5821 | ||
5822 | writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); | |
5823 | } | |
1da177e4 LT |
5824 | |
5825 | return 0; | |
5826 | } | |
5827 | ||
5828 | /** | |
5829 | * s2io_tasklet - Bottom half of the ISR. | |
5830 | * @dev_adr : address of the device structure in dma_addr_t format. | |
5831 | * Description: | |
5832 | * This is the tasklet or the bottom half of the ISR. This is | |
20346722 | 5833 | * an extension of the ISR which is scheduled by the scheduler to be run |
1da177e4 | 5834 | * when the load on the CPU is low. All low priority tasks of the ISR can |
20346722 | 5835 | * be pushed into the tasklet. For now the tasklet is used only to |
1da177e4 LT |
5836 | * replenish the Rx buffers in the Rx buffer descriptors. |
5837 | * Return value: | |
5838 | * void. | |
5839 | */ | |
5840 | ||
5841 | static void s2io_tasklet(unsigned long dev_addr) | |
5842 | { | |
5843 | struct net_device *dev = (struct net_device *) dev_addr; | |
5844 | nic_t *sp = dev->priv; | |
5845 | int i, ret; | |
5846 | mac_info_t *mac_control; | |
5847 | struct config_param *config; | |
5848 | ||
5849 | mac_control = &sp->mac_control; | |
5850 | config = &sp->config; | |
5851 | ||
5852 | if (!TASKLET_IN_USE) { | |
5853 | for (i = 0; i < config->rx_ring_num; i++) { | |
5854 | ret = fill_rx_buffers(sp, i); | |
5855 | if (ret == -ENOMEM) { | |
5856 | DBG_PRINT(ERR_DBG, "%s: Out of ", | |
5857 | dev->name); | |
5858 | DBG_PRINT(ERR_DBG, "memory in tasklet\n"); | |
5859 | break; | |
5860 | } else if (ret == -EFILL) { | |
5861 | DBG_PRINT(ERR_DBG, | |
5862 | "%s: Rx Ring %d is full\n", | |
5863 | dev->name, i); | |
5864 | break; | |
5865 | } | |
5866 | } | |
5867 | clear_bit(0, (&sp->tasklet_status)); | |
5868 | } | |
5869 | } | |
5870 | ||
5871 | /** | |
5872 | * s2io_set_link - Set the LInk status | |
5873 | * @data: long pointer to device private structue | |
5874 | * Description: Sets the link status for the adapter | |
5875 | */ | |
5876 | ||
5877 | static void s2io_set_link(unsigned long data) | |
5878 | { | |
5879 | nic_t *nic = (nic_t *) data; | |
5880 | struct net_device *dev = nic->dev; | |
5881 | XENA_dev_config_t __iomem *bar0 = nic->bar0; | |
5882 | register u64 val64; | |
5883 | u16 subid; | |
5884 | ||
5885 | if (test_and_set_bit(0, &(nic->link_state))) { | |
5886 | /* The card is being reset, no point doing anything */ | |
5887 | return; | |
5888 | } | |
5889 | ||
5890 | subid = nic->pdev->subsystem_device; | |
a371a07d K |
5891 | if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) { |
5892 | /* | |
5893 | * Allow a small delay for the NICs self initiated | |
5894 | * cleanup to complete. | |
5895 | */ | |
5896 | msleep(100); | |
5897 | } | |
1da177e4 LT |
5898 | |
5899 | val64 = readq(&bar0->adapter_status); | |
20346722 | 5900 | if (verify_xena_quiescence(nic, val64, nic->device_enabled_once)) { |
1da177e4 LT |
5901 | if (LINK_IS_UP(val64)) { |
5902 | val64 = readq(&bar0->adapter_control); | |
5903 | val64 |= ADAPTER_CNTL_EN; | |
5904 | writeq(val64, &bar0->adapter_control); | |
541ae68f K |
5905 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, |
5906 | subid)) { | |
1da177e4 LT |
5907 | val64 = readq(&bar0->gpio_control); |
5908 | val64 |= GPIO_CTRL_GPIO_0; | |
5909 | writeq(val64, &bar0->gpio_control); | |
5910 | val64 = readq(&bar0->gpio_control); | |
5911 | } else { | |
5912 | val64 |= ADAPTER_LED_ON; | |
5913 | writeq(val64, &bar0->adapter_control); | |
5914 | } | |
a371a07d K |
5915 | if (s2io_link_fault_indication(nic) == |
5916 | MAC_RMAC_ERR_TIMER) { | |
5917 | val64 = readq(&bar0->adapter_status); | |
5918 | if (!LINK_IS_UP(val64)) { | |
5919 | DBG_PRINT(ERR_DBG, "%s:", dev->name); | |
5920 | DBG_PRINT(ERR_DBG, " Link down"); | |
5921 | DBG_PRINT(ERR_DBG, "after "); | |
5922 | DBG_PRINT(ERR_DBG, "enabling "); | |
5923 | DBG_PRINT(ERR_DBG, "device \n"); | |
5924 | } | |
1da177e4 LT |
5925 | } |
5926 | if (nic->device_enabled_once == FALSE) { | |
5927 | nic->device_enabled_once = TRUE; | |
5928 | } | |
5929 | s2io_link(nic, LINK_UP); | |
5930 | } else { | |
541ae68f K |
5931 | if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type, |
5932 | subid)) { | |
1da177e4 LT |
5933 | val64 = readq(&bar0->gpio_control); |
5934 | val64 &= ~GPIO_CTRL_GPIO_0; | |
5935 | writeq(val64, &bar0->gpio_control); | |
5936 | val64 = readq(&bar0->gpio_control); | |
5937 | } | |
5938 | s2io_link(nic, LINK_DOWN); | |
5939 | } | |
5940 | } else { /* NIC is not Quiescent. */ | |
5941 | DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name); | |
5942 | DBG_PRINT(ERR_DBG, "device is not Quiescent\n"); | |
5943 | netif_stop_queue(dev); | |
5944 | } | |
5945 | clear_bit(0, &(nic->link_state)); | |
5946 | } | |
5947 | ||
5d3213cc AR |
5948 | static int set_rxd_buffer_pointer(nic_t *sp, RxD_t *rxdp, buffAdd_t *ba, |
5949 | struct sk_buff **skb, u64 *temp0, u64 *temp1, | |
5950 | u64 *temp2, int size) | |
5951 | { | |
5952 | struct net_device *dev = sp->dev; | |
5953 | struct sk_buff *frag_list; | |
5954 | ||
5955 | if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { | |
5956 | /* allocate skb */ | |
5957 | if (*skb) { | |
5958 | DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); | |
5959 | /* | |
5960 | * As Rx frame are not going to be processed, | |
5961 | * using same mapped address for the Rxd | |
5962 | * buffer pointer | |
5963 | */ | |
5964 | ((RxD1_t*)rxdp)->Buffer0_ptr = *temp0; | |
5965 | } else { | |
5966 | *skb = dev_alloc_skb(size); | |
5967 | if (!(*skb)) { | |
5968 | DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name); | |
5969 | DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n"); | |
5970 | return -ENOMEM ; | |
5971 | } | |
5972 | /* storing the mapped addr in a temp variable | |
5973 | * such it will be used for next rxd whose | |
5974 | * Host Control is NULL | |
5975 | */ | |
5976 | ((RxD1_t*)rxdp)->Buffer0_ptr = *temp0 = | |
5977 | pci_map_single( sp->pdev, (*skb)->data, | |
5978 | size - NET_IP_ALIGN, | |
5979 | PCI_DMA_FROMDEVICE); | |
5980 | rxdp->Host_Control = (unsigned long) (*skb); | |
5981 | } | |
5982 | } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { | |
5983 | /* Two buffer Mode */ | |
5984 | if (*skb) { | |
5985 | ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2; | |
5986 | ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0; | |
5987 | ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1; | |
5988 | } else { | |
5989 | *skb = dev_alloc_skb(size); | |
5990 | ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 = | |
5991 | pci_map_single(sp->pdev, (*skb)->data, | |
5992 | dev->mtu + 4, | |
5993 | PCI_DMA_FROMDEVICE); | |
5994 | ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0 = | |
5995 | pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, | |
5996 | PCI_DMA_FROMDEVICE); | |
5997 | rxdp->Host_Control = (unsigned long) (*skb); | |
5998 | ||
5999 | /* Buffer-1 will be dummy buffer not used */ | |
6000 | ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1 = | |
6001 | pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, | |
6002 | PCI_DMA_FROMDEVICE); | |
6003 | } | |
6004 | } else if ((rxdp->Host_Control == 0)) { | |
6005 | /* Three buffer mode */ | |
6006 | if (*skb) { | |
6007 | ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0; | |
6008 | ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1; | |
6009 | ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2; | |
6010 | } else { | |
6011 | *skb = dev_alloc_skb(size); | |
6012 | ||
6013 | ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0 = | |
6014 | pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, | |
6015 | PCI_DMA_FROMDEVICE); | |
6016 | /* Buffer-1 receives L3/L4 headers */ | |
6017 | ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1 = | |
6018 | pci_map_single( sp->pdev, (*skb)->data, | |
6019 | l3l4hdr_size + 4, | |
6020 | PCI_DMA_FROMDEVICE); | |
6021 | /* | |
6022 | * skb_shinfo(skb)->frag_list will have L4 | |
6023 | * data payload | |
6024 | */ | |
6025 | skb_shinfo(*skb)->frag_list = dev_alloc_skb(dev->mtu + | |
6026 | ALIGN_SIZE); | |
6027 | if (skb_shinfo(*skb)->frag_list == NULL) { | |
6028 | DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb \ | |
6029 | failed\n ", dev->name); | |
6030 | return -ENOMEM ; | |
6031 | } | |
6032 | frag_list = skb_shinfo(*skb)->frag_list; | |
6033 | frag_list->next = NULL; | |
6034 | /* | |
6035 | * Buffer-2 receives L4 data payload | |
6036 | */ | |
6037 | ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 = | |
6038 | pci_map_single( sp->pdev, frag_list->data, | |
6039 | dev->mtu, PCI_DMA_FROMDEVICE); | |
6040 | } | |
6041 | } | |
6042 | return 0; | |
6043 | } | |
6044 | static void set_rxd_buffer_size(nic_t *sp, RxD_t *rxdp, int size) | |
6045 | { | |
6046 | struct net_device *dev = sp->dev; | |
6047 | if (sp->rxd_mode == RXD_MODE_1) { | |
6048 | rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN); | |
6049 | } else if (sp->rxd_mode == RXD_MODE_3B) { | |
6050 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6051 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); | |
6052 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); | |
6053 | } else { | |
6054 | rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); | |
6055 | rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); | |
6056 | rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); | |
6057 | } | |
6058 | } | |
6059 | ||
6060 | static int rxd_owner_bit_reset(nic_t *sp) | |
6061 | { | |
6062 | int i, j, k, blk_cnt = 0, size; | |
6063 | mac_info_t * mac_control = &sp->mac_control; | |
6064 | struct config_param *config = &sp->config; | |
6065 | struct net_device *dev = sp->dev; | |
6066 | RxD_t *rxdp = NULL; | |
6067 | struct sk_buff *skb = NULL; | |
6068 | buffAdd_t *ba = NULL; | |
6069 | u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0; | |
6070 | ||
6071 | /* Calculate the size based on ring mode */ | |
6072 | size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE + | |
6073 | HEADER_802_2_SIZE + HEADER_SNAP_SIZE; | |
6074 | if (sp->rxd_mode == RXD_MODE_1) | |
6075 | size += NET_IP_ALIGN; | |
6076 | else if (sp->rxd_mode == RXD_MODE_3B) | |
6077 | size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; | |
6078 | else | |
6079 | size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; | |
6080 | ||
6081 | for (i = 0; i < config->rx_ring_num; i++) { | |
6082 | blk_cnt = config->rx_cfg[i].num_rxd / | |
6083 | (rxd_count[sp->rxd_mode] +1); | |
6084 | ||
6085 | for (j = 0; j < blk_cnt; j++) { | |
6086 | for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { | |
6087 | rxdp = mac_control->rings[i]. | |
6088 | rx_blocks[j].rxds[k].virt_addr; | |
6089 | if(sp->rxd_mode >= RXD_MODE_3A) | |
6090 | ba = &mac_control->rings[i].ba[j][k]; | |
6091 | set_rxd_buffer_pointer(sp, rxdp, ba, | |
6092 | &skb,(u64 *)&temp0_64, | |
6093 | (u64 *)&temp1_64, | |
6094 | (u64 *)&temp2_64, size); | |
6095 | ||
6096 | set_rxd_buffer_size(sp, rxdp, size); | |
6097 | wmb(); | |
6098 | /* flip the Ownership bit to Hardware */ | |
6099 | rxdp->Control_1 |= RXD_OWN_XENA; | |
6100 | } | |
6101 | } | |
6102 | } | |
6103 | return 0; | |
6104 | ||
6105 | } | |
6106 | ||
e6a8fee2 | 6107 | static int s2io_add_isr(nic_t * sp) |
1da177e4 | 6108 | { |
e6a8fee2 | 6109 | int ret = 0; |
c92ca04b | 6110 | struct net_device *dev = sp->dev; |
e6a8fee2 | 6111 | int err = 0; |
1da177e4 | 6112 | |
e6a8fee2 AR |
6113 | if (sp->intr_type == MSI) |
6114 | ret = s2io_enable_msi(sp); | |
6115 | else if (sp->intr_type == MSI_X) | |
6116 | ret = s2io_enable_msi_x(sp); | |
6117 | if (ret) { | |
6118 | DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); | |
6119 | sp->intr_type = INTA; | |
20346722 | 6120 | } |
1da177e4 | 6121 | |
e6a8fee2 AR |
6122 | /* Store the values of the MSIX table in the nic_t structure */ |
6123 | store_xmsi_data(sp); | |
c92ca04b | 6124 | |
e6a8fee2 AR |
6125 | /* After proper initialization of H/W, register ISR */ |
6126 | if (sp->intr_type == MSI) { | |
6127 | err = request_irq((int) sp->pdev->irq, s2io_msi_handle, | |
6128 | IRQF_SHARED, sp->name, dev); | |
6129 | if (err) { | |
6130 | pci_disable_msi(sp->pdev); | |
6131 | DBG_PRINT(ERR_DBG, "%s: MSI registration failed\n", | |
6132 | dev->name); | |
6133 | return -1; | |
6134 | } | |
6135 | } | |
6136 | if (sp->intr_type == MSI_X) { | |
6137 | int i; | |
c92ca04b | 6138 | |
e6a8fee2 AR |
6139 | for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) { |
6140 | if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) { | |
6141 | sprintf(sp->desc[i], "%s:MSI-X-%d-TX", | |
6142 | dev->name, i); | |
6143 | err = request_irq(sp->entries[i].vector, | |
6144 | s2io_msix_fifo_handle, 0, sp->desc[i], | |
6145 | sp->s2io_entries[i].arg); | |
6146 | DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc[i], | |
6147 | (unsigned long long)sp->msix_info[i].addr); | |
6148 | } else { | |
6149 | sprintf(sp->desc[i], "%s:MSI-X-%d-RX", | |
6150 | dev->name, i); | |
6151 | err = request_irq(sp->entries[i].vector, | |
6152 | s2io_msix_ring_handle, 0, sp->desc[i], | |
6153 | sp->s2io_entries[i].arg); | |
6154 | DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc[i], | |
6155 | (unsigned long long)sp->msix_info[i].addr); | |
c92ca04b | 6156 | } |
e6a8fee2 AR |
6157 | if (err) { |
6158 | DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration " | |
6159 | "failed\n", dev->name, i); | |
6160 | DBG_PRINT(ERR_DBG, "Returned: %d\n", err); | |
6161 | return -1; | |
6162 | } | |
6163 | sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS; | |
6164 | } | |
6165 | } | |
6166 | if (sp->intr_type == INTA) { | |
6167 | err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED, | |
6168 | sp->name, dev); | |
6169 | if (err) { | |
6170 | DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n", | |
6171 | dev->name); | |
6172 | return -1; | |
6173 | } | |
6174 | } | |
6175 | return 0; | |
6176 | } | |
6177 | static void s2io_rem_isr(nic_t * sp) | |
6178 | { | |
6179 | int cnt = 0; | |
6180 | struct net_device *dev = sp->dev; | |
6181 | ||
6182 | if (sp->intr_type == MSI_X) { | |
6183 | int i; | |
6184 | u16 msi_control; | |
6185 | ||
6186 | for (i=1; (sp->s2io_entries[i].in_use == | |
6187 | MSIX_REGISTERED_SUCCESS); i++) { | |
6188 | int vector = sp->entries[i].vector; | |
6189 | void *arg = sp->s2io_entries[i].arg; | |
6190 | ||
6191 | free_irq(vector, arg); | |
6192 | } | |
6193 | pci_read_config_word(sp->pdev, 0x42, &msi_control); | |
6194 | msi_control &= 0xFFFE; /* Disable MSI */ | |
6195 | pci_write_config_word(sp->pdev, 0x42, msi_control); | |
6196 | ||
6197 | pci_disable_msix(sp->pdev); | |
6198 | } else { | |
6199 | free_irq(sp->pdev->irq, dev); | |
6200 | if (sp->intr_type == MSI) { | |
6201 | u16 val; | |
6202 | ||
6203 | pci_disable_msi(sp->pdev); | |
6204 | pci_read_config_word(sp->pdev, 0x4c, &val); | |
6205 | val ^= 0x1; | |
6206 | pci_write_config_word(sp->pdev, 0x4c, val); | |
c92ca04b AR |
6207 | } |
6208 | } | |
6209 | /* Waiting till all Interrupt handlers are complete */ | |
6210 | cnt = 0; | |
6211 | do { | |
6212 | msleep(10); | |
6213 | if (!atomic_read(&sp->isr_cnt)) | |
6214 | break; | |
6215 | cnt++; | |
6216 | } while(cnt < 5); | |
e6a8fee2 AR |
6217 | } |
6218 | ||
6219 | static void s2io_card_down(nic_t * sp) | |
6220 | { | |
6221 | int cnt = 0; | |
6222 | XENA_dev_config_t __iomem *bar0 = sp->bar0; | |
6223 | unsigned long flags; | |
6224 | register u64 val64 = 0; | |
6225 | ||
6226 | del_timer_sync(&sp->alarm_timer); | |
6227 | /* If s2io_set_link task is executing, wait till it completes. */ | |
6228 | while (test_and_set_bit(0, &(sp->link_state))) { | |
6229 | msleep(50); | |
6230 | } | |
6231 | atomic_set(&sp->card_state, CARD_DOWN); | |
6232 | ||
6233 | /* disable Tx and Rx traffic on the NIC */ | |
6234 | stop_nic(sp); | |
6235 | ||
6236 | s2io_rem_isr(sp); | |
1da177e4 LT |
6237 | |
6238 | /* Kill tasklet. */ | |
6239 | tasklet_kill(&sp->task); | |
6240 | ||
6241 | /* Check if the device is Quiescent and then Reset the NIC */ | |
6242 | do { | |
5d3213cc AR |
6243 | /* As per the HW requirement we need to replenish the |
6244 | * receive buffer to avoid the ring bump. Since there is | |
6245 | * no intention of processing the Rx frame at this pointwe are | |
6246 | * just settting the ownership bit of rxd in Each Rx | |
6247 | * ring to HW and set the appropriate buffer size | |
6248 | * based on the ring mode | |
6249 | */ | |
6250 | rxd_owner_bit_reset(sp); | |
6251 | ||
1da177e4 | 6252 | val64 = readq(&bar0->adapter_status); |
20346722 | 6253 | if (verify_xena_quiescence(sp, val64, sp->device_enabled_once)) { |
1da177e4 LT |
6254 | break; |
6255 | } | |
6256 | ||
6257 | msleep(50); | |
6258 | cnt++; | |
6259 | if (cnt == 10) { | |
6260 | DBG_PRINT(ERR_DBG, | |
6261 | "s2io_close:Device not Quiescent "); | |
6262 | DBG_PRINT(ERR_DBG, "adaper status reads 0x%llx\n", | |
6263 | (unsigned long long) val64); | |
6264 | break; | |
6265 | } | |
6266 | } while (1); | |
1da177e4 LT |
6267 | s2io_reset(sp); |
6268 | ||
7ba013ac K |
6269 | spin_lock_irqsave(&sp->tx_lock, flags); |
6270 | /* Free all Tx buffers */ | |
1da177e4 | 6271 | free_tx_buffers(sp); |
7ba013ac K |
6272 | spin_unlock_irqrestore(&sp->tx_lock, flags); |
6273 | ||
6274 | /* Free all Rx buffers */ | |
6275 | spin_lock_irqsave(&sp->rx_lock, flags); | |
1da177e4 | 6276 | free_rx_buffers(sp); |
7ba013ac | 6277 | spin_unlock_irqrestore(&sp->rx_lock, flags); |
1da177e4 | 6278 | |
1da177e4 LT |
6279 | clear_bit(0, &(sp->link_state)); |
6280 | } | |
6281 | ||
6282 | static int s2io_card_up(nic_t * sp) | |
6283 | { | |
cc6e7c44 | 6284 | int i, ret = 0; |
1da177e4 LT |
6285 | mac_info_t *mac_control; |
6286 | struct config_param *config; | |
6287 | struct net_device *dev = (struct net_device *) sp->dev; | |
e6a8fee2 | 6288 | u16 interruptible; |
1da177e4 LT |
6289 | |
6290 | /* Initialize the H/W I/O registers */ | |
6291 | if (init_nic(sp) != 0) { | |
6292 | DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", | |
6293 | dev->name); | |
e6a8fee2 | 6294 | s2io_reset(sp); |
1da177e4 LT |
6295 | return -ENODEV; |
6296 | } | |
6297 | ||
20346722 K |
6298 | /* |
6299 | * Initializing the Rx buffers. For now we are considering only 1 | |
1da177e4 LT |
6300 | * Rx ring and initializing buffers into 30 Rx blocks |
6301 | */ | |
6302 | mac_control = &sp->mac_control; | |
6303 | config = &sp->config; | |
6304 | ||
6305 | for (i = 0; i < config->rx_ring_num; i++) { | |
6306 | if ((ret = fill_rx_buffers(sp, i))) { | |
6307 | DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", | |
6308 | dev->name); | |
6309 | s2io_reset(sp); | |
6310 | free_rx_buffers(sp); | |
6311 | return -ENOMEM; | |
6312 | } | |
6313 | DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i, | |
6314 | atomic_read(&sp->rx_bufs_left[i])); | |
6315 | } | |
6316 | ||
6317 | /* Setting its receive mode */ | |
6318 | s2io_set_multicast(dev); | |
6319 | ||
7d3d0439 | 6320 | if (sp->lro) { |
b41477f3 | 6321 | /* Initialize max aggregatable pkts per session based on MTU */ |
7d3d0439 RA |
6322 | sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; |
6323 | /* Check if we can use(if specified) user provided value */ | |
6324 | if (lro_max_pkts < sp->lro_max_aggr_per_sess) | |
6325 | sp->lro_max_aggr_per_sess = lro_max_pkts; | |
6326 | } | |
6327 | ||
1da177e4 LT |
6328 | /* Enable Rx Traffic and interrupts on the NIC */ |
6329 | if (start_nic(sp)) { | |
6330 | DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name); | |
1da177e4 | 6331 | s2io_reset(sp); |
e6a8fee2 AR |
6332 | free_rx_buffers(sp); |
6333 | return -ENODEV; | |
6334 | } | |
6335 | ||
6336 | /* Add interrupt service routine */ | |
6337 | if (s2io_add_isr(sp) != 0) { | |
6338 | if (sp->intr_type == MSI_X) | |
6339 | s2io_rem_isr(sp); | |
6340 | s2io_reset(sp); | |
1da177e4 LT |
6341 | free_rx_buffers(sp); |
6342 | return -ENODEV; | |
6343 | } | |
6344 | ||
25fff88e K |
6345 | S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); |
6346 | ||
e6a8fee2 AR |
6347 | /* Enable tasklet for the device */ |
6348 | tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev); | |
6349 | ||
6350 | /* Enable select interrupts */ | |
6351 | if (sp->intr_type != INTA) | |
6352 | en_dis_able_nic_intrs(sp, ENA_ALL_INTRS, DISABLE_INTRS); | |
6353 | else { | |
6354 | interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR; | |
6355 | interruptible |= TX_PIC_INTR | RX_PIC_INTR; | |
6356 | interruptible |= TX_MAC_INTR | RX_MAC_INTR; | |
6357 | en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS); | |
6358 | } | |
6359 | ||
6360 | ||
1da177e4 LT |
6361 | atomic_set(&sp->card_state, CARD_UP); |
6362 | return 0; | |
6363 | } | |
6364 | ||
20346722 | 6365 | /** |
1da177e4 LT |
6366 | * s2io_restart_nic - Resets the NIC. |
6367 | * @data : long pointer to the device private structure | |
6368 | * Description: | |
6369 | * This function is scheduled to be run by the s2io_tx_watchdog | |
20346722 | 6370 | * function after 0.5 secs to reset the NIC. The idea is to reduce |
1da177e4 LT |
6371 | * the run time of the watch dog routine which is run holding a |
6372 | * spin lock. | |
6373 | */ | |
6374 | ||
6375 | static void s2io_restart_nic(unsigned long data) | |
6376 | { | |
6377 | struct net_device *dev = (struct net_device *) data; | |
6378 | nic_t *sp = dev->priv; | |
6379 | ||
e6a8fee2 | 6380 | s2io_card_down(sp); |
1da177e4 LT |
6381 | if (s2io_card_up(sp)) { |
6382 | DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", | |
6383 | dev->name); | |
6384 | } | |
6385 | netif_wake_queue(dev); | |
6386 | DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", | |
6387 | dev->name); | |
20346722 | 6388 | |
1da177e4 LT |
6389 | } |
6390 | ||
20346722 K |
6391 | /** |
6392 | * s2io_tx_watchdog - Watchdog for transmit side. | |
1da177e4 LT |
6393 | * @dev : Pointer to net device structure |
6394 | * Description: | |
6395 | * This function is triggered if the Tx Queue is stopped | |
6396 | * for a pre-defined amount of time when the Interface is still up. | |
6397 | * If the Interface is jammed in such a situation, the hardware is | |
6398 | * reset (by s2io_close) and restarted again (by s2io_open) to | |
6399 | * overcome any problem that might have been caused in the hardware. | |
6400 | * Return value: | |
6401 | * void | |
6402 | */ | |
6403 | ||
6404 | static void s2io_tx_watchdog(struct net_device *dev) | |
6405 | { | |
6406 | nic_t *sp = dev->priv; | |
6407 | ||
6408 | if (netif_carrier_ok(dev)) { | |
6409 | schedule_work(&sp->rst_timer_task); | |
bd1034f0 | 6410 | sp->mac_control.stats_info->sw_stat.soft_reset_cnt++; |
1da177e4 LT |
6411 | } |
6412 | } | |
6413 | ||
6414 | /** | |
6415 | * rx_osm_handler - To perform some OS related operations on SKB. | |
6416 | * @sp: private member of the device structure,pointer to s2io_nic structure. | |
6417 | * @skb : the socket buffer pointer. | |
6418 | * @len : length of the packet | |
6419 | * @cksum : FCS checksum of the frame. | |
6420 | * @ring_no : the ring from which this RxD was extracted. | |
20346722 | 6421 | * Description: |
b41477f3 | 6422 | * This function is called by the Rx interrupt serivce routine to perform |
1da177e4 LT |
6423 | * some OS related operations on the SKB before passing it to the upper |
6424 | * layers. It mainly checks if the checksum is OK, if so adds it to the | |
6425 | * SKBs cksum variable, increments the Rx packet count and passes the SKB | |
6426 | * to the upper layer. If the checksum is wrong, it increments the Rx | |
6427 | * packet error count, frees the SKB and returns error. | |
6428 | * Return value: | |
6429 | * SUCCESS on success and -1 on failure. | |
6430 | */ | |
20346722 | 6431 | static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp) |
1da177e4 | 6432 | { |
20346722 | 6433 | nic_t *sp = ring_data->nic; |
1da177e4 | 6434 | struct net_device *dev = (struct net_device *) sp->dev; |
20346722 K |
6435 | struct sk_buff *skb = (struct sk_buff *) |
6436 | ((unsigned long) rxdp->Host_Control); | |
6437 | int ring_no = ring_data->ring_no; | |
1da177e4 | 6438 | u16 l3_csum, l4_csum; |
863c11a9 | 6439 | unsigned long long err = rxdp->Control_1 & RXD_T_CODE; |
7d3d0439 | 6440 | lro_t *lro; |
da6971d8 | 6441 | |
20346722 | 6442 | skb->dev = dev; |
c92ca04b | 6443 | |
863c11a9 | 6444 | if (err) { |
bd1034f0 AR |
6445 | /* Check for parity error */ |
6446 | if (err & 0x1) { | |
6447 | sp->mac_control.stats_info->sw_stat.parity_err_cnt++; | |
6448 | } | |
6449 | ||
863c11a9 AR |
6450 | /* |
6451 | * Drop the packet if bad transfer code. Exception being | |
6452 | * 0x5, which could be due to unsupported IPv6 extension header. | |
6453 | * In this case, we let stack handle the packet. | |
6454 | * Note that in this case, since checksum will be incorrect, | |
6455 | * stack will validate the same. | |
6456 | */ | |
6457 | if (err && ((err >> 48) != 0x5)) { | |
6458 | DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%llx\n", | |
6459 | dev->name, err); | |
6460 | sp->stats.rx_crc_errors++; | |
6461 | dev_kfree_skb(skb); | |
6462 | atomic_dec(&sp->rx_bufs_left[ring_no]); | |
6463 | rxdp->Host_Control = 0; | |
6464 | return 0; | |
6465 | } | |
20346722 | 6466 | } |
1da177e4 | 6467 | |
20346722 K |
6468 | /* Updating statistics */ |
6469 | rxdp->Host_Control = 0; | |
6470 | sp->rx_pkt_count++; | |
6471 | sp->stats.rx_packets++; | |
da6971d8 AR |
6472 | if (sp->rxd_mode == RXD_MODE_1) { |
6473 | int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); | |
20346722 | 6474 | |
da6971d8 AR |
6475 | sp->stats.rx_bytes += len; |
6476 | skb_put(skb, len); | |
6477 | ||
6478 | } else if (sp->rxd_mode >= RXD_MODE_3A) { | |
6479 | int get_block = ring_data->rx_curr_get_info.block_index; | |
6480 | int get_off = ring_data->rx_curr_get_info.offset; | |
6481 | int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); | |
6482 | int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2); | |
6483 | unsigned char *buff = skb_push(skb, buf0_len); | |
6484 | ||
6485 | buffAdd_t *ba = &ring_data->ba[get_block][get_off]; | |
6486 | sp->stats.rx_bytes += buf0_len + buf2_len; | |
6487 | memcpy(buff, ba->ba_0, buf0_len); | |
6488 | ||
6489 | if (sp->rxd_mode == RXD_MODE_3A) { | |
6490 | int buf1_len = RXD_GET_BUFFER1_SIZE_3(rxdp->Control_2); | |
6491 | ||
6492 | skb_put(skb, buf1_len); | |
6493 | skb->len += buf2_len; | |
6494 | skb->data_len += buf2_len; | |
6495 | skb->truesize += buf2_len; | |
6496 | skb_put(skb_shinfo(skb)->frag_list, buf2_len); | |
6497 | sp->stats.rx_bytes += buf1_len; | |
6498 | ||
6499 | } else | |
6500 | skb_put(skb, buf2_len); | |
6501 | } | |
20346722 | 6502 | |
7d3d0439 RA |
6503 | if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || |
6504 | (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) && | |
20346722 K |
6505 | (sp->rx_csum)) { |
6506 | l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1); | |
1da177e4 LT |
6507 | l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1); |
6508 | if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) { | |
20346722 | 6509 | /* |
1da177e4 LT |
6510 | * NIC verifies if the Checksum of the received |
6511 | * frame is Ok or not and accordingly returns | |
6512 | * a flag in the RxD. | |
6513 | */ | |
6514 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
7d3d0439 RA |
6515 | if (sp->lro) { |
6516 | u32 tcp_len; | |
6517 | u8 *tcp; | |
6518 | int ret = 0; | |
6519 | ||
6520 | ret = s2io_club_tcp_session(skb->data, &tcp, | |
6521 | &tcp_len, &lro, rxdp, sp); | |
6522 | switch (ret) { | |
6523 | case 3: /* Begin anew */ | |
6524 | lro->parent = skb; | |
6525 | goto aggregate; | |
6526 | case 1: /* Aggregate */ | |
6527 | { | |
6528 | lro_append_pkt(sp, lro, | |
6529 | skb, tcp_len); | |
6530 | goto aggregate; | |
6531 | } | |
6532 | case 4: /* Flush session */ | |
6533 | { | |
6534 | lro_append_pkt(sp, lro, | |
6535 | skb, tcp_len); | |
6536 | queue_rx_frame(lro->parent); | |
6537 | clear_lro_session(lro); | |
6538 | sp->mac_control.stats_info-> | |
6539 | sw_stat.flush_max_pkts++; | |
6540 | goto aggregate; | |
6541 | } | |
6542 | case 2: /* Flush both */ | |
6543 | lro->parent->data_len = | |
6544 | lro->frags_len; | |
6545 | sp->mac_control.stats_info-> | |
6546 | sw_stat.sending_both++; | |
6547 | queue_rx_frame(lro->parent); | |
6548 | clear_lro_session(lro); | |
6549 | goto send_up; | |
6550 | case 0: /* sessions exceeded */ | |
c92ca04b AR |
6551 | case -1: /* non-TCP or not |
6552 | * L2 aggregatable | |
6553 | */ | |
7d3d0439 RA |
6554 | case 5: /* |
6555 | * First pkt in session not | |
6556 | * L3/L4 aggregatable | |
6557 | */ | |
6558 | break; | |
6559 | default: | |
6560 | DBG_PRINT(ERR_DBG, | |
6561 | "%s: Samadhana!!\n", | |
6562 | __FUNCTION__); | |
6563 | BUG(); | |
6564 | } | |
6565 | } | |
1da177e4 | 6566 | } else { |
20346722 K |
6567 | /* |
6568 | * Packet with erroneous checksum, let the | |
1da177e4 LT |
6569 | * upper layers deal with it. |
6570 | */ | |
6571 | skb->ip_summed = CHECKSUM_NONE; | |
6572 | } | |
6573 | } else { | |
6574 | skb->ip_summed = CHECKSUM_NONE; | |
6575 | } | |
6576 | ||
7d3d0439 RA |
6577 | if (!sp->lro) { |
6578 | skb->protocol = eth_type_trans(skb, dev); | |
1da177e4 | 6579 | #ifdef CONFIG_S2IO_NAPI |
7d3d0439 RA |
6580 | if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) { |
6581 | /* Queueing the vlan frame to the upper layer */ | |
6582 | vlan_hwaccel_receive_skb(skb, sp->vlgrp, | |
6583 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
6584 | } else { | |
6585 | netif_receive_skb(skb); | |
6586 | } | |
1da177e4 | 6587 | #else |
7d3d0439 RA |
6588 | if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) { |
6589 | /* Queueing the vlan frame to the upper layer */ | |
6590 | vlan_hwaccel_rx(skb, sp->vlgrp, | |
6591 | RXD_GET_VLAN_TAG(rxdp->Control_2)); | |
6592 | } else { | |
6593 | netif_rx(skb); | |
6594 | } | |
1da177e4 | 6595 | #endif |
7d3d0439 RA |
6596 | } else { |
6597 | send_up: | |
6598 | queue_rx_frame(skb); | |
6599 | } | |
1da177e4 | 6600 | dev->last_rx = jiffies; |
7d3d0439 | 6601 | aggregate: |
1da177e4 | 6602 | atomic_dec(&sp->rx_bufs_left[ring_no]); |
1da177e4 LT |
6603 | return SUCCESS; |
6604 | } | |
6605 | ||
6606 | /** | |
6607 | * s2io_link - stops/starts the Tx queue. | |
6608 | * @sp : private member of the device structure, which is a pointer to the | |
6609 | * s2io_nic structure. | |
6610 | * @link : inidicates whether link is UP/DOWN. | |
6611 | * Description: | |
6612 | * This function stops/starts the Tx queue depending on whether the link | |
20346722 K |
6613 | * status of the NIC is is down or up. This is called by the Alarm |
6614 | * interrupt handler whenever a link change interrupt comes up. | |
1da177e4 LT |
6615 | * Return value: |
6616 | * void. | |
6617 | */ | |
6618 | ||
26df54bf | 6619 | static void s2io_link(nic_t * sp, int link) |
1da177e4 LT |
6620 | { |
6621 | struct net_device *dev = (struct net_device *) sp->dev; | |
6622 | ||
6623 | if (link != sp->last_link_state) { | |
6624 | if (link == LINK_DOWN) { | |
6625 | DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name); | |
6626 | netif_carrier_off(dev); | |
6627 | } else { | |
6628 | DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name); | |
6629 | netif_carrier_on(dev); | |
6630 | } | |
6631 | } | |
6632 | sp->last_link_state = link; | |
6633 | } | |
6634 | ||
6635 | /** | |
20346722 K |
6636 | * get_xena_rev_id - to identify revision ID of xena. |
6637 | * @pdev : PCI Dev structure | |
6638 | * Description: | |
6639 | * Function to identify the Revision ID of xena. | |
6640 | * Return value: | |
6641 | * returns the revision ID of the device. | |
6642 | */ | |
6643 | ||
26df54bf | 6644 | static int get_xena_rev_id(struct pci_dev *pdev) |
20346722 K |
6645 | { |
6646 | u8 id = 0; | |
6647 | int ret; | |
6648 | ret = pci_read_config_byte(pdev, PCI_REVISION_ID, (u8 *) & id); | |
6649 | return id; | |
6650 | } | |
6651 | ||
6652 | /** | |
6653 | * s2io_init_pci -Initialization of PCI and PCI-X configuration registers . | |
6654 | * @sp : private member of the device structure, which is a pointer to the | |
1da177e4 LT |
6655 | * s2io_nic structure. |
6656 | * Description: | |
6657 | * This function initializes a few of the PCI and PCI-X configuration registers | |
6658 | * with recommended values. | |
6659 | * Return value: | |
6660 | * void | |
6661 | */ | |
6662 | ||
6663 | static void s2io_init_pci(nic_t * sp) | |
6664 | { | |
20346722 | 6665 | u16 pci_cmd = 0, pcix_cmd = 0; |
1da177e4 LT |
6666 | |
6667 | /* Enable Data Parity Error Recovery in PCI-X command register. */ | |
6668 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, | |
20346722 | 6669 | &(pcix_cmd)); |
1da177e4 | 6670 | pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6671 | (pcix_cmd | 1)); |
1da177e4 | 6672 | pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, |
20346722 | 6673 | &(pcix_cmd)); |
1da177e4 LT |
6674 | |
6675 | /* Set the PErr Response bit in PCI command register. */ | |
6676 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
6677 | pci_write_config_word(sp->pdev, PCI_COMMAND, | |
6678 | (pci_cmd | PCI_COMMAND_PARITY)); | |
6679 | pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); | |
1da177e4 LT |
6680 | } |
6681 | ||
9dc737a7 AR |
6682 | static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) |
6683 | { | |
6684 | if ( tx_fifo_num > 8) { | |
6685 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not " | |
6686 | "supported\n"); | |
6687 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n"); | |
6688 | tx_fifo_num = 8; | |
6689 | } | |
6690 | if ( rx_ring_num > 8) { | |
6691 | DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not " | |
6692 | "supported\n"); | |
6693 | DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n"); | |
6694 | rx_ring_num = 8; | |
6695 | } | |
6696 | #ifdef CONFIG_S2IO_NAPI | |
6697 | if (*dev_intr_type != INTA) { | |
6698 | DBG_PRINT(ERR_DBG, "s2io: NAPI cannot be enabled when " | |
6699 | "MSI/MSI-X is enabled. Defaulting to INTA\n"); | |
6700 | *dev_intr_type = INTA; | |
6701 | } | |
6702 | #endif | |
6703 | #ifndef CONFIG_PCI_MSI | |
6704 | if (*dev_intr_type != INTA) { | |
6705 | DBG_PRINT(ERR_DBG, "s2io: This kernel does not support" | |
6706 | "MSI/MSI-X. Defaulting to INTA\n"); | |
6707 | *dev_intr_type = INTA; | |
6708 | } | |
6709 | #else | |
6710 | if (*dev_intr_type > MSI_X) { | |
6711 | DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " | |
6712 | "Defaulting to INTA\n"); | |
6713 | *dev_intr_type = INTA; | |
6714 | } | |
6715 | #endif | |
6716 | if ((*dev_intr_type == MSI_X) && | |
6717 | ((pdev->device != PCI_DEVICE_ID_HERC_WIN) && | |
6718 | (pdev->device != PCI_DEVICE_ID_HERC_UNI))) { | |
6719 | DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. " | |
6720 | "Defaulting to INTA\n"); | |
6721 | *dev_intr_type = INTA; | |
6722 | } | |
6723 | if (rx_ring_mode > 3) { | |
6724 | DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); | |
6725 | DBG_PRINT(ERR_DBG, "s2io: Defaulting to 3-buffer mode\n"); | |
6726 | rx_ring_mode = 3; | |
6727 | } | |
6728 | return SUCCESS; | |
6729 | } | |
6730 | ||
1da177e4 | 6731 | /** |
20346722 | 6732 | * s2io_init_nic - Initialization of the adapter . |
1da177e4 LT |
6733 | * @pdev : structure containing the PCI related information of the device. |
6734 | * @pre: List of PCI devices supported by the driver listed in s2io_tbl. | |
6735 | * Description: | |
6736 | * The function initializes an adapter identified by the pci_dec structure. | |
20346722 K |
6737 | * All OS related initialization including memory and device structure and |
6738 | * initlaization of the device private variable is done. Also the swapper | |
6739 | * control register is initialized to enable read and write into the I/O | |
1da177e4 LT |
6740 | * registers of the device. |
6741 | * Return value: | |
6742 | * returns 0 on success and negative on failure. | |
6743 | */ | |
6744 | ||
6745 | static int __devinit | |
6746 | s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) | |
6747 | { | |
6748 | nic_t *sp; | |
6749 | struct net_device *dev; | |
1da177e4 LT |
6750 | int i, j, ret; |
6751 | int dma_flag = FALSE; | |
6752 | u32 mac_up, mac_down; | |
6753 | u64 val64 = 0, tmp64 = 0; | |
6754 | XENA_dev_config_t __iomem *bar0 = NULL; | |
6755 | u16 subid; | |
6756 | mac_info_t *mac_control; | |
6757 | struct config_param *config; | |
541ae68f | 6758 | int mode; |
cc6e7c44 | 6759 | u8 dev_intr_type = intr_type; |
1da177e4 | 6760 | |
9dc737a7 AR |
6761 | if ((ret = s2io_verify_parm(pdev, &dev_intr_type))) |
6762 | return ret; | |
1da177e4 LT |
6763 | |
6764 | if ((ret = pci_enable_device(pdev))) { | |
6765 | DBG_PRINT(ERR_DBG, | |
6766 | "s2io_init_nic: pci_enable_device failed\n"); | |
6767 | return ret; | |
6768 | } | |
6769 | ||
1e7f0bd8 | 6770 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
6771 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 64bit DMA\n"); |
6772 | dma_flag = TRUE; | |
1da177e4 | 6773 | if (pci_set_consistent_dma_mask |
1e7f0bd8 | 6774 | (pdev, DMA_64BIT_MASK)) { |
1da177e4 LT |
6775 | DBG_PRINT(ERR_DBG, |
6776 | "Unable to obtain 64bit DMA for \ | |
6777 | consistent allocations\n"); | |
6778 | pci_disable_device(pdev); | |
6779 | return -ENOMEM; | |
6780 | } | |
1e7f0bd8 | 6781 | } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
1da177e4 LT |
6782 | DBG_PRINT(INIT_DBG, "s2io_init_nic: Using 32bit DMA\n"); |
6783 | } else { | |
6784 | pci_disable_device(pdev); | |
6785 | return -ENOMEM; | |
6786 | } | |
cc6e7c44 RA |
6787 | if (dev_intr_type != MSI_X) { |
6788 | if (pci_request_regions(pdev, s2io_driver_name)) { | |
b41477f3 AR |
6789 | DBG_PRINT(ERR_DBG, "Request Regions failed\n"); |
6790 | pci_disable_device(pdev); | |
cc6e7c44 RA |
6791 | return -ENODEV; |
6792 | } | |
6793 | } | |
6794 | else { | |
6795 | if (!(request_mem_region(pci_resource_start(pdev, 0), | |
6796 | pci_resource_len(pdev, 0), s2io_driver_name))) { | |
6797 | DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n"); | |
6798 | pci_disable_device(pdev); | |
6799 | return -ENODEV; | |
6800 | } | |
6801 | if (!(request_mem_region(pci_resource_start(pdev, 2), | |
6802 | pci_resource_len(pdev, 2), s2io_driver_name))) { | |
6803 | DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n"); | |
6804 | release_mem_region(pci_resource_start(pdev, 0), | |
6805 | pci_resource_len(pdev, 0)); | |
6806 | pci_disable_device(pdev); | |
6807 | return -ENODEV; | |
6808 | } | |
1da177e4 LT |
6809 | } |
6810 | ||
6811 | dev = alloc_etherdev(sizeof(nic_t)); | |
6812 | if (dev == NULL) { | |
6813 | DBG_PRINT(ERR_DBG, "Device allocation failed\n"); | |
6814 | pci_disable_device(pdev); | |
6815 | pci_release_regions(pdev); | |
6816 | return -ENODEV; | |
6817 | } | |
6818 | ||
6819 | pci_set_master(pdev); | |
6820 | pci_set_drvdata(pdev, dev); | |
6821 | SET_MODULE_OWNER(dev); | |
6822 | SET_NETDEV_DEV(dev, &pdev->dev); | |
6823 | ||
6824 | /* Private member variable initialized to s2io NIC structure */ | |
6825 | sp = dev->priv; | |
6826 | memset(sp, 0, sizeof(nic_t)); | |
6827 | sp->dev = dev; | |
6828 | sp->pdev = pdev; | |
1da177e4 | 6829 | sp->high_dma_flag = dma_flag; |
1da177e4 | 6830 | sp->device_enabled_once = FALSE; |
da6971d8 AR |
6831 | if (rx_ring_mode == 1) |
6832 | sp->rxd_mode = RXD_MODE_1; | |
6833 | if (rx_ring_mode == 2) | |
6834 | sp->rxd_mode = RXD_MODE_3B; | |
6835 | if (rx_ring_mode == 3) | |
6836 | sp->rxd_mode = RXD_MODE_3A; | |
6837 | ||
cc6e7c44 | 6838 | sp->intr_type = dev_intr_type; |
1da177e4 | 6839 | |
541ae68f K |
6840 | if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) || |
6841 | (pdev->device == PCI_DEVICE_ID_HERC_UNI)) | |
6842 | sp->device_type = XFRAME_II_DEVICE; | |
6843 | else | |
6844 | sp->device_type = XFRAME_I_DEVICE; | |
6845 | ||
7d3d0439 | 6846 | sp->lro = lro; |
cc6e7c44 | 6847 | |
1da177e4 LT |
6848 | /* Initialize some PCI/PCI-X fields of the NIC. */ |
6849 | s2io_init_pci(sp); | |
6850 | ||
20346722 | 6851 | /* |
1da177e4 | 6852 | * Setting the device configuration parameters. |
20346722 K |
6853 | * Most of these parameters can be specified by the user during |
6854 | * module insertion as they are module loadable parameters. If | |
6855 | * these parameters are not not specified during load time, they | |
1da177e4 LT |
6856 | * are initialized with default values. |
6857 | */ | |
6858 | mac_control = &sp->mac_control; | |
6859 | config = &sp->config; | |
6860 | ||
6861 | /* Tx side parameters. */ | |
1da177e4 LT |
6862 | config->tx_fifo_num = tx_fifo_num; |
6863 | for (i = 0; i < MAX_TX_FIFOS; i++) { | |
6864 | config->tx_cfg[i].fifo_len = tx_fifo_len[i]; | |
6865 | config->tx_cfg[i].fifo_priority = i; | |
6866 | } | |
6867 | ||
20346722 K |
6868 | /* mapping the QoS priority to the configured fifos */ |
6869 | for (i = 0; i < MAX_TX_FIFOS; i++) | |
6870 | config->fifo_mapping[i] = fifo_map[config->tx_fifo_num][i]; | |
6871 | ||
1da177e4 LT |
6872 | config->tx_intr_type = TXD_INT_TYPE_UTILZ; |
6873 | for (i = 0; i < config->tx_fifo_num; i++) { | |
6874 | config->tx_cfg[i].f_no_snoop = | |
6875 | (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER); | |
6876 | if (config->tx_cfg[i].fifo_len < 65) { | |
6877 | config->tx_intr_type = TXD_INT_TYPE_PER_LIST; | |
6878 | break; | |
6879 | } | |
6880 | } | |
fed5eccd AR |
6881 | /* + 2 because one Txd for skb->data and one Txd for UFO */ |
6882 | config->max_txds = MAX_SKB_FRAGS + 2; | |
1da177e4 LT |
6883 | |
6884 | /* Rx side parameters. */ | |
1da177e4 LT |
6885 | config->rx_ring_num = rx_ring_num; |
6886 | for (i = 0; i < MAX_RX_RINGS; i++) { | |
6887 | config->rx_cfg[i].num_rxd = rx_ring_sz[i] * | |
da6971d8 | 6888 | (rxd_count[sp->rxd_mode] + 1); |
1da177e4 LT |
6889 | config->rx_cfg[i].ring_priority = i; |
6890 | } | |
6891 | ||
6892 | for (i = 0; i < rx_ring_num; i++) { | |
6893 | config->rx_cfg[i].ring_org = RING_ORG_BUFF1; | |
6894 | config->rx_cfg[i].f_no_snoop = | |
6895 | (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER); | |
6896 | } | |
6897 | ||
6898 | /* Setting Mac Control parameters */ | |
6899 | mac_control->rmac_pause_time = rmac_pause_time; | |
6900 | mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3; | |
6901 | mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7; | |
6902 | ||
6903 | ||
6904 | /* Initialize Ring buffer parameters. */ | |
6905 | for (i = 0; i < config->rx_ring_num; i++) | |
6906 | atomic_set(&sp->rx_bufs_left[i], 0); | |
6907 | ||
7ba013ac K |
6908 | /* Initialize the number of ISRs currently running */ |
6909 | atomic_set(&sp->isr_cnt, 0); | |
6910 | ||
1da177e4 LT |
6911 | /* initialize the shared memory used by the NIC and the host */ |
6912 | if (init_shared_mem(sp)) { | |
6913 | DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", | |
b41477f3 | 6914 | dev->name); |
1da177e4 LT |
6915 | ret = -ENOMEM; |
6916 | goto mem_alloc_failed; | |
6917 | } | |
6918 | ||
6919 | sp->bar0 = ioremap(pci_resource_start(pdev, 0), | |
6920 | pci_resource_len(pdev, 0)); | |
6921 | if (!sp->bar0) { | |
6922 | DBG_PRINT(ERR_DBG, "%s: S2IO: cannot remap io mem1\n", | |
6923 | dev->name); | |
6924 | ret = -ENOMEM; | |
6925 | goto bar0_remap_failed; | |
6926 | } | |
6927 | ||
6928 | sp->bar1 = ioremap(pci_resource_start(pdev, 2), | |
6929 | pci_resource_len(pdev, 2)); | |
6930 | if (!sp->bar1) { | |
6931 | DBG_PRINT(ERR_DBG, "%s: S2IO: cannot remap io mem2\n", | |
6932 | dev->name); | |
6933 | ret = -ENOMEM; | |
6934 | goto bar1_remap_failed; | |
6935 | } | |
6936 | ||
6937 | dev->irq = pdev->irq; | |
6938 | dev->base_addr = (unsigned long) sp->bar0; | |
6939 | ||
6940 | /* Initializing the BAR1 address as the start of the FIFO pointer. */ | |
6941 | for (j = 0; j < MAX_TX_FIFOS; j++) { | |
6942 | mac_control->tx_FIFO_start[j] = (TxFIFO_element_t __iomem *) | |
6943 | (sp->bar1 + (j * 0x00020000)); | |
6944 | } | |
6945 | ||
6946 | /* Driver entry points */ | |
6947 | dev->open = &s2io_open; | |
6948 | dev->stop = &s2io_close; | |
6949 | dev->hard_start_xmit = &s2io_xmit; | |
6950 | dev->get_stats = &s2io_get_stats; | |
6951 | dev->set_multicast_list = &s2io_set_multicast; | |
6952 | dev->do_ioctl = &s2io_ioctl; | |
6953 | dev->change_mtu = &s2io_change_mtu; | |
6954 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
be3a6b02 K |
6955 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
6956 | dev->vlan_rx_register = s2io_vlan_rx_register; | |
6957 | dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid; | |
20346722 | 6958 | |
1da177e4 LT |
6959 | /* |
6960 | * will use eth_mac_addr() for dev->set_mac_address | |
6961 | * mac address will be set every time dev->open() is called | |
6962 | */ | |
20346722 | 6963 | #if defined(CONFIG_S2IO_NAPI) |
1da177e4 | 6964 | dev->poll = s2io_poll; |
20346722 | 6965 | dev->weight = 32; |
1da177e4 LT |
6966 | #endif |
6967 | ||
612eff0e BH |
6968 | #ifdef CONFIG_NET_POLL_CONTROLLER |
6969 | dev->poll_controller = s2io_netpoll; | |
6970 | #endif | |
6971 | ||
1da177e4 LT |
6972 | dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; |
6973 | if (sp->high_dma_flag == TRUE) | |
6974 | dev->features |= NETIF_F_HIGHDMA; | |
6975 | #ifdef NETIF_F_TSO | |
6976 | dev->features |= NETIF_F_TSO; | |
f83ef8c0 HX |
6977 | #endif |
6978 | #ifdef NETIF_F_TSO6 | |
6979 | dev->features |= NETIF_F_TSO6; | |
1da177e4 | 6980 | #endif |
fed5eccd AR |
6981 | if (sp->device_type & XFRAME_II_DEVICE) { |
6982 | dev->features |= NETIF_F_UFO; | |
6983 | dev->features |= NETIF_F_HW_CSUM; | |
6984 | } | |
1da177e4 LT |
6985 | |
6986 | dev->tx_timeout = &s2io_tx_watchdog; | |
6987 | dev->watchdog_timeo = WATCH_DOG_TIMEOUT; | |
6988 | INIT_WORK(&sp->rst_timer_task, | |
6989 | (void (*)(void *)) s2io_restart_nic, dev); | |
6990 | INIT_WORK(&sp->set_link_task, | |
6991 | (void (*)(void *)) s2io_set_link, sp); | |
6992 | ||
e960fc5c | 6993 | pci_save_state(sp->pdev); |
1da177e4 LT |
6994 | |
6995 | /* Setting swapper control on the NIC, for proper reset operation */ | |
6996 | if (s2io_set_swapper(sp)) { | |
6997 | DBG_PRINT(ERR_DBG, "%s:swapper settings are wrong\n", | |
6998 | dev->name); | |
6999 | ret = -EAGAIN; | |
7000 | goto set_swap_failed; | |
7001 | } | |
7002 | ||
541ae68f K |
7003 | /* Verify if the Herc works on the slot its placed into */ |
7004 | if (sp->device_type & XFRAME_II_DEVICE) { | |
7005 | mode = s2io_verify_pci_mode(sp); | |
7006 | if (mode < 0) { | |
7007 | DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__); | |
7008 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); | |
7009 | ret = -EBADSLT; | |
7010 | goto set_swap_failed; | |
7011 | } | |
7012 | } | |
7013 | ||
7014 | /* Not needed for Herc */ | |
7015 | if (sp->device_type & XFRAME_I_DEVICE) { | |
7016 | /* | |
7017 | * Fix for all "FFs" MAC address problems observed on | |
7018 | * Alpha platforms | |
7019 | */ | |
7020 | fix_mac_address(sp); | |
7021 | s2io_reset(sp); | |
7022 | } | |
1da177e4 LT |
7023 | |
7024 | /* | |
1da177e4 LT |
7025 | * MAC address initialization. |
7026 | * For now only one mac address will be read and used. | |
7027 | */ | |
7028 | bar0 = sp->bar0; | |
7029 | val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD | | |
7030 | RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET); | |
7031 | writeq(val64, &bar0->rmac_addr_cmd_mem); | |
c92ca04b AR |
7032 | wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem, |
7033 | RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING); | |
1da177e4 LT |
7034 | tmp64 = readq(&bar0->rmac_addr_data0_mem); |
7035 | mac_down = (u32) tmp64; | |
7036 | mac_up = (u32) (tmp64 >> 32); | |
7037 | ||
7038 | memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN)); | |
7039 | ||
7040 | sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up); | |
7041 | sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8); | |
7042 | sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16); | |
7043 | sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24); | |
7044 | sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16); | |
7045 | sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24); | |
7046 | ||
1da177e4 LT |
7047 | /* Set the factory defined MAC address initially */ |
7048 | dev->addr_len = ETH_ALEN; | |
7049 | memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); | |
7050 | ||
b41477f3 AR |
7051 | /* reset Nic and bring it to known state */ |
7052 | s2io_reset(sp); | |
7053 | ||
1da177e4 | 7054 | /* |
20346722 | 7055 | * Initialize the tasklet status and link state flags |
541ae68f | 7056 | * and the card state parameter |
1da177e4 LT |
7057 | */ |
7058 | atomic_set(&(sp->card_state), 0); | |
7059 | sp->tasklet_status = 0; | |
7060 | sp->link_state = 0; | |
7061 | ||
1da177e4 LT |
7062 | /* Initialize spinlocks */ |
7063 | spin_lock_init(&sp->tx_lock); | |
7064 | #ifndef CONFIG_S2IO_NAPI | |
7065 | spin_lock_init(&sp->put_lock); | |
7066 | #endif | |
7ba013ac | 7067 | spin_lock_init(&sp->rx_lock); |
1da177e4 | 7068 | |
20346722 K |
7069 | /* |
7070 | * SXE-002: Configure link and activity LED to init state | |
7071 | * on driver load. | |
1da177e4 LT |
7072 | */ |
7073 | subid = sp->pdev->subsystem_device; | |
7074 | if ((subid & 0xFF) >= 0x07) { | |
7075 | val64 = readq(&bar0->gpio_control); | |
7076 | val64 |= 0x0000800000000000ULL; | |
7077 | writeq(val64, &bar0->gpio_control); | |
7078 | val64 = 0x0411040400000000ULL; | |
7079 | writeq(val64, (void __iomem *) bar0 + 0x2700); | |
7080 | val64 = readq(&bar0->gpio_control); | |
7081 | } | |
7082 | ||
7083 | sp->rx_csum = 1; /* Rx chksum verify enabled by default */ | |
7084 | ||
7085 | if (register_netdev(dev)) { | |
7086 | DBG_PRINT(ERR_DBG, "Device registration failed\n"); | |
7087 | ret = -ENODEV; | |
7088 | goto register_failed; | |
7089 | } | |
9dc737a7 | 7090 | s2io_vpd_read(sp); |
9dc737a7 | 7091 | DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2005 Neterion Inc.\n"); |
b41477f3 AR |
7092 | DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, |
7093 | sp->product_name, get_xena_rev_id(sp->pdev)); | |
7094 | DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, | |
7095 | s2io_driver_version); | |
9dc737a7 AR |
7096 | DBG_PRINT(ERR_DBG, "%s: MAC ADDR: " |
7097 | "%02x:%02x:%02x:%02x:%02x:%02x\n", dev->name, | |
541ae68f K |
7098 | sp->def_mac_addr[0].mac_addr[0], |
7099 | sp->def_mac_addr[0].mac_addr[1], | |
7100 | sp->def_mac_addr[0].mac_addr[2], | |
7101 | sp->def_mac_addr[0].mac_addr[3], | |
7102 | sp->def_mac_addr[0].mac_addr[4], | |
7103 | sp->def_mac_addr[0].mac_addr[5]); | |
9dc737a7 | 7104 | if (sp->device_type & XFRAME_II_DEVICE) { |
0b1f7ebe | 7105 | mode = s2io_print_pci_mode(sp); |
541ae68f | 7106 | if (mode < 0) { |
9dc737a7 | 7107 | DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n"); |
541ae68f | 7108 | ret = -EBADSLT; |
9dc737a7 | 7109 | unregister_netdev(dev); |
541ae68f K |
7110 | goto set_swap_failed; |
7111 | } | |
541ae68f | 7112 | } |
9dc737a7 AR |
7113 | switch(sp->rxd_mode) { |
7114 | case RXD_MODE_1: | |
7115 | DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n", | |
7116 | dev->name); | |
7117 | break; | |
7118 | case RXD_MODE_3B: | |
7119 | DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", | |
7120 | dev->name); | |
7121 | break; | |
7122 | case RXD_MODE_3A: | |
7123 | DBG_PRINT(ERR_DBG, "%s: 3-Buffer receive mode enabled\n", | |
7124 | dev->name); | |
7125 | break; | |
7126 | } | |
7127 | #ifdef CONFIG_S2IO_NAPI | |
7128 | DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name); | |
7129 | #endif | |
7130 | switch(sp->intr_type) { | |
7131 | case INTA: | |
7132 | DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); | |
7133 | break; | |
7134 | case MSI: | |
7135 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name); | |
7136 | break; | |
7137 | case MSI_X: | |
7138 | DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); | |
7139 | break; | |
7140 | } | |
7d3d0439 RA |
7141 | if (sp->lro) |
7142 | DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n", | |
9dc737a7 | 7143 | dev->name); |
7d3d0439 | 7144 | |
7ba013ac | 7145 | /* Initialize device name */ |
9dc737a7 | 7146 | sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); |
7ba013ac | 7147 | |
b6e3f982 K |
7148 | /* Initialize bimodal Interrupts */ |
7149 | sp->config.bimodal = bimodal; | |
7150 | if (!(sp->device_type & XFRAME_II_DEVICE) && bimodal) { | |
7151 | sp->config.bimodal = 0; | |
7152 | DBG_PRINT(ERR_DBG,"%s:Bimodal intr not supported by Xframe I\n", | |
7153 | dev->name); | |
7154 | } | |
7155 | ||
20346722 K |
7156 | /* |
7157 | * Make Link state as off at this point, when the Link change | |
7158 | * interrupt comes the state will be automatically changed to | |
1da177e4 LT |
7159 | * the right state. |
7160 | */ | |
7161 | netif_carrier_off(dev); | |
1da177e4 LT |
7162 | |
7163 | return 0; | |
7164 | ||
7165 | register_failed: | |
7166 | set_swap_failed: | |
7167 | iounmap(sp->bar1); | |
7168 | bar1_remap_failed: | |
7169 | iounmap(sp->bar0); | |
7170 | bar0_remap_failed: | |
7171 | mem_alloc_failed: | |
7172 | free_shared_mem(sp); | |
7173 | pci_disable_device(pdev); | |
cc6e7c44 RA |
7174 | if (dev_intr_type != MSI_X) |
7175 | pci_release_regions(pdev); | |
7176 | else { | |
7177 | release_mem_region(pci_resource_start(pdev, 0), | |
7178 | pci_resource_len(pdev, 0)); | |
7179 | release_mem_region(pci_resource_start(pdev, 2), | |
7180 | pci_resource_len(pdev, 2)); | |
7181 | } | |
1da177e4 LT |
7182 | pci_set_drvdata(pdev, NULL); |
7183 | free_netdev(dev); | |
7184 | ||
7185 | return ret; | |
7186 | } | |
7187 | ||
7188 | /** | |
20346722 | 7189 | * s2io_rem_nic - Free the PCI device |
1da177e4 | 7190 | * @pdev: structure containing the PCI related information of the device. |
20346722 | 7191 | * Description: This function is called by the Pci subsystem to release a |
1da177e4 | 7192 | * PCI device and free up all resource held up by the device. This could |
20346722 | 7193 | * be in response to a Hot plug event or when the driver is to be removed |
1da177e4 LT |
7194 | * from memory. |
7195 | */ | |
7196 | ||
7197 | static void __devexit s2io_rem_nic(struct pci_dev *pdev) | |
7198 | { | |
7199 | struct net_device *dev = | |
7200 | (struct net_device *) pci_get_drvdata(pdev); | |
7201 | nic_t *sp; | |
7202 | ||
7203 | if (dev == NULL) { | |
7204 | DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n"); | |
7205 | return; | |
7206 | } | |
7207 | ||
7208 | sp = dev->priv; | |
7209 | unregister_netdev(dev); | |
7210 | ||
7211 | free_shared_mem(sp); | |
7212 | iounmap(sp->bar0); | |
7213 | iounmap(sp->bar1); | |
7214 | pci_disable_device(pdev); | |
cc6e7c44 RA |
7215 | if (sp->intr_type != MSI_X) |
7216 | pci_release_regions(pdev); | |
7217 | else { | |
7218 | release_mem_region(pci_resource_start(pdev, 0), | |
7219 | pci_resource_len(pdev, 0)); | |
7220 | release_mem_region(pci_resource_start(pdev, 2), | |
7221 | pci_resource_len(pdev, 2)); | |
7222 | } | |
1da177e4 | 7223 | pci_set_drvdata(pdev, NULL); |
1da177e4 LT |
7224 | free_netdev(dev); |
7225 | } | |
7226 | ||
7227 | /** | |
7228 | * s2io_starter - Entry point for the driver | |
7229 | * Description: This function is the entry point for the driver. It verifies | |
7230 | * the module loadable parameters and initializes PCI configuration space. | |
7231 | */ | |
7232 | ||
7233 | int __init s2io_starter(void) | |
7234 | { | |
7235 | return pci_module_init(&s2io_driver); | |
7236 | } | |
7237 | ||
7238 | /** | |
20346722 | 7239 | * s2io_closer - Cleanup routine for the driver |
1da177e4 LT |
7240 | * Description: This function is the cleanup routine for the driver. It unregist * ers the driver. |
7241 | */ | |
7242 | ||
26df54bf | 7243 | static void s2io_closer(void) |
1da177e4 LT |
7244 | { |
7245 | pci_unregister_driver(&s2io_driver); | |
7246 | DBG_PRINT(INIT_DBG, "cleanup done\n"); | |
7247 | } | |
7248 | ||
7249 | module_init(s2io_starter); | |
7250 | module_exit(s2io_closer); | |
7d3d0439 RA |
7251 | |
7252 | static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip, | |
7253 | struct tcphdr **tcp, RxD_t *rxdp) | |
7254 | { | |
7255 | int ip_off; | |
7256 | u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len; | |
7257 | ||
7258 | if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) { | |
7259 | DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n", | |
7260 | __FUNCTION__); | |
7261 | return -1; | |
7262 | } | |
7263 | ||
7264 | /* TODO: | |
7265 | * By default the VLAN field in the MAC is stripped by the card, if this | |
7266 | * feature is turned off in rx_pa_cfg register, then the ip_off field | |
7267 | * has to be shifted by a further 2 bytes | |
7268 | */ | |
7269 | switch (l2_type) { | |
7270 | case 0: /* DIX type */ | |
7271 | case 4: /* DIX type with VLAN */ | |
7272 | ip_off = HEADER_ETHERNET_II_802_3_SIZE; | |
7273 | break; | |
7274 | /* LLC, SNAP etc are considered non-mergeable */ | |
7275 | default: | |
7276 | return -1; | |
7277 | } | |
7278 | ||
7279 | *ip = (struct iphdr *)((u8 *)buffer + ip_off); | |
7280 | ip_len = (u8)((*ip)->ihl); | |
7281 | ip_len <<= 2; | |
7282 | *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len); | |
7283 | ||
7284 | return 0; | |
7285 | } | |
7286 | ||
7287 | static int check_for_socket_match(lro_t *lro, struct iphdr *ip, | |
7288 | struct tcphdr *tcp) | |
7289 | { | |
7290 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7291 | if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) || | |
7292 | (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest)) | |
7293 | return -1; | |
7294 | return 0; | |
7295 | } | |
7296 | ||
7297 | static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp) | |
7298 | { | |
7299 | return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2)); | |
7300 | } | |
7301 | ||
7302 | static void initiate_new_session(lro_t *lro, u8 *l2h, | |
7303 | struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len) | |
7304 | { | |
7305 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7306 | lro->l2h = l2h; | |
7307 | lro->iph = ip; | |
7308 | lro->tcph = tcp; | |
7309 | lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq); | |
7310 | lro->tcp_ack = ntohl(tcp->ack_seq); | |
7311 | lro->sg_num = 1; | |
7312 | lro->total_len = ntohs(ip->tot_len); | |
7313 | lro->frags_len = 0; | |
7314 | /* | |
7315 | * check if we saw TCP timestamp. Other consistency checks have | |
7316 | * already been done. | |
7317 | */ | |
7318 | if (tcp->doff == 8) { | |
7319 | u32 *ptr; | |
7320 | ptr = (u32 *)(tcp+1); | |
7321 | lro->saw_ts = 1; | |
7322 | lro->cur_tsval = *(ptr+1); | |
7323 | lro->cur_tsecr = *(ptr+2); | |
7324 | } | |
7325 | lro->in_use = 1; | |
7326 | } | |
7327 | ||
7328 | static void update_L3L4_header(nic_t *sp, lro_t *lro) | |
7329 | { | |
7330 | struct iphdr *ip = lro->iph; | |
7331 | struct tcphdr *tcp = lro->tcph; | |
7332 | u16 nchk; | |
7333 | StatInfo_t *statinfo = sp->mac_control.stats_info; | |
7334 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7335 | ||
7336 | /* Update L3 header */ | |
7337 | ip->tot_len = htons(lro->total_len); | |
7338 | ip->check = 0; | |
7339 | nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); | |
7340 | ip->check = nchk; | |
7341 | ||
7342 | /* Update L4 header */ | |
7343 | tcp->ack_seq = lro->tcp_ack; | |
7344 | tcp->window = lro->window; | |
7345 | ||
7346 | /* Update tsecr field if this session has timestamps enabled */ | |
7347 | if (lro->saw_ts) { | |
7348 | u32 *ptr = (u32 *)(tcp + 1); | |
7349 | *(ptr+2) = lro->cur_tsecr; | |
7350 | } | |
7351 | ||
7352 | /* Update counters required for calculation of | |
7353 | * average no. of packets aggregated. | |
7354 | */ | |
7355 | statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num; | |
7356 | statinfo->sw_stat.num_aggregations++; | |
7357 | } | |
7358 | ||
7359 | static void aggregate_new_rx(lro_t *lro, struct iphdr *ip, | |
7360 | struct tcphdr *tcp, u32 l4_pyld) | |
7361 | { | |
7362 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); | |
7363 | lro->total_len += l4_pyld; | |
7364 | lro->frags_len += l4_pyld; | |
7365 | lro->tcp_next_seq += l4_pyld; | |
7366 | lro->sg_num++; | |
7367 | ||
7368 | /* Update ack seq no. and window ad(from this pkt) in LRO object */ | |
7369 | lro->tcp_ack = tcp->ack_seq; | |
7370 | lro->window = tcp->window; | |
7371 | ||
7372 | if (lro->saw_ts) { | |
7373 | u32 *ptr; | |
7374 | /* Update tsecr and tsval from this packet */ | |
7375 | ptr = (u32 *) (tcp + 1); | |
7376 | lro->cur_tsval = *(ptr + 1); | |
7377 | lro->cur_tsecr = *(ptr + 2); | |
7378 | } | |
7379 | } | |
7380 | ||
7381 | static int verify_l3_l4_lro_capable(lro_t *l_lro, struct iphdr *ip, | |
7382 | struct tcphdr *tcp, u32 tcp_pyld_len) | |
7383 | { | |
7d3d0439 RA |
7384 | u8 *ptr; |
7385 | ||
79dc1901 AM |
7386 | DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__); |
7387 | ||
7d3d0439 RA |
7388 | if (!tcp_pyld_len) { |
7389 | /* Runt frame or a pure ack */ | |
7390 | return -1; | |
7391 | } | |
7392 | ||
7393 | if (ip->ihl != 5) /* IP has options */ | |
7394 | return -1; | |
7395 | ||
75c30b13 AR |
7396 | /* If we see CE codepoint in IP header, packet is not mergeable */ |
7397 | if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) | |
7398 | return -1; | |
7399 | ||
7400 | /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ | |
7d3d0439 | 7401 | if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || |
75c30b13 | 7402 | tcp->ece || tcp->cwr || !tcp->ack) { |
7d3d0439 RA |
7403 | /* |
7404 | * Currently recognize only the ack control word and | |
7405 | * any other control field being set would result in | |
7406 | * flushing the LRO session | |
7407 | */ | |
7408 | return -1; | |
7409 | } | |
7410 | ||
7411 | /* | |
7412 | * Allow only one TCP timestamp option. Don't aggregate if | |
7413 | * any other options are detected. | |
7414 | */ | |
7415 | if (tcp->doff != 5 && tcp->doff != 8) | |
7416 | return -1; | |
7417 | ||
7418 | if (tcp->doff == 8) { | |
7419 | ptr = (u8 *)(tcp + 1); | |
7420 | while (*ptr == TCPOPT_NOP) | |
7421 | ptr++; | |
7422 | if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP) | |
7423 | return -1; | |
7424 | ||
7425 | /* Ensure timestamp value increases monotonically */ | |
7426 | if (l_lro) | |
7427 | if (l_lro->cur_tsval > *((u32 *)(ptr+2))) | |
7428 | return -1; | |
7429 | ||
7430 | /* timestamp echo reply should be non-zero */ | |
7431 | if (*((u32 *)(ptr+6)) == 0) | |
7432 | return -1; | |
7433 | } | |
7434 | ||
7435 | return 0; | |
7436 | } | |
7437 | ||
7438 | static int | |
7439 | s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, lro_t **lro, | |
7440 | RxD_t *rxdp, nic_t *sp) | |
7441 | { | |
7442 | struct iphdr *ip; | |
7443 | struct tcphdr *tcph; | |
7444 | int ret = 0, i; | |
7445 | ||
7446 | if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp, | |
7447 | rxdp))) { | |
7448 | DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n", | |
7449 | ip->saddr, ip->daddr); | |
7450 | } else { | |
7451 | return ret; | |
7452 | } | |
7453 | ||
7454 | tcph = (struct tcphdr *)*tcp; | |
7455 | *tcp_len = get_l4_pyld_length(ip, tcph); | |
7456 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
7457 | lro_t *l_lro = &sp->lro0_n[i]; | |
7458 | if (l_lro->in_use) { | |
7459 | if (check_for_socket_match(l_lro, ip, tcph)) | |
7460 | continue; | |
7461 | /* Sock pair matched */ | |
7462 | *lro = l_lro; | |
7463 | ||
7464 | if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) { | |
7465 | DBG_PRINT(INFO_DBG, "%s:Out of order. expected " | |
7466 | "0x%x, actual 0x%x\n", __FUNCTION__, | |
7467 | (*lro)->tcp_next_seq, | |
7468 | ntohl(tcph->seq)); | |
7469 | ||
7470 | sp->mac_control.stats_info-> | |
7471 | sw_stat.outof_sequence_pkts++; | |
7472 | ret = 2; | |
7473 | break; | |
7474 | } | |
7475 | ||
7476 | if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len)) | |
7477 | ret = 1; /* Aggregate */ | |
7478 | else | |
7479 | ret = 2; /* Flush both */ | |
7480 | break; | |
7481 | } | |
7482 | } | |
7483 | ||
7484 | if (ret == 0) { | |
7485 | /* Before searching for available LRO objects, | |
7486 | * check if the pkt is L3/L4 aggregatable. If not | |
7487 | * don't create new LRO session. Just send this | |
7488 | * packet up. | |
7489 | */ | |
7490 | if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) { | |
7491 | return 5; | |
7492 | } | |
7493 | ||
7494 | for (i=0; i<MAX_LRO_SESSIONS; i++) { | |
7495 | lro_t *l_lro = &sp->lro0_n[i]; | |
7496 | if (!(l_lro->in_use)) { | |
7497 | *lro = l_lro; | |
7498 | ret = 3; /* Begin anew */ | |
7499 | break; | |
7500 | } | |
7501 | } | |
7502 | } | |
7503 | ||
7504 | if (ret == 0) { /* sessions exceeded */ | |
7505 | DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n", | |
7506 | __FUNCTION__); | |
7507 | *lro = NULL; | |
7508 | return ret; | |
7509 | } | |
7510 | ||
7511 | switch (ret) { | |
7512 | case 3: | |
7513 | initiate_new_session(*lro, buffer, ip, tcph, *tcp_len); | |
7514 | break; | |
7515 | case 2: | |
7516 | update_L3L4_header(sp, *lro); | |
7517 | break; | |
7518 | case 1: | |
7519 | aggregate_new_rx(*lro, ip, tcph, *tcp_len); | |
7520 | if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) { | |
7521 | update_L3L4_header(sp, *lro); | |
7522 | ret = 4; /* Flush the LRO */ | |
7523 | } | |
7524 | break; | |
7525 | default: | |
7526 | DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n", | |
7527 | __FUNCTION__); | |
7528 | break; | |
7529 | } | |
7530 | ||
7531 | return ret; | |
7532 | } | |
7533 | ||
7534 | static void clear_lro_session(lro_t *lro) | |
7535 | { | |
7536 | static u16 lro_struct_size = sizeof(lro_t); | |
7537 | ||
7538 | memset(lro, 0, lro_struct_size); | |
7539 | } | |
7540 | ||
7541 | static void queue_rx_frame(struct sk_buff *skb) | |
7542 | { | |
7543 | struct net_device *dev = skb->dev; | |
7544 | ||
7545 | skb->protocol = eth_type_trans(skb, dev); | |
7546 | #ifdef CONFIG_S2IO_NAPI | |
7547 | netif_receive_skb(skb); | |
7548 | #else | |
7549 | netif_rx(skb); | |
7550 | #endif | |
7551 | } | |
7552 | ||
7553 | static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb, | |
7554 | u32 tcp_len) | |
7555 | { | |
75c30b13 | 7556 | struct sk_buff *first = lro->parent; |
7d3d0439 RA |
7557 | |
7558 | first->len += tcp_len; | |
7559 | first->data_len = lro->frags_len; | |
7560 | skb_pull(skb, (skb->len - tcp_len)); | |
75c30b13 AR |
7561 | if (skb_shinfo(first)->frag_list) |
7562 | lro->last_frag->next = skb; | |
7d3d0439 RA |
7563 | else |
7564 | skb_shinfo(first)->frag_list = skb; | |
75c30b13 | 7565 | lro->last_frag = skb; |
7d3d0439 RA |
7566 | sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; |
7567 | return; | |
7568 | } |