Commit | Line | Data |
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3d396eb1 AK |
1 | /* |
2 | * Copyright (C) 2003 - 2006 NetXen, Inc. | |
3 | * All rights reserved. | |
80922fbc | 4 | * |
3d396eb1 AK |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
80922fbc | 9 | * |
3d396eb1 AK |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
80922fbc | 14 | * |
3d396eb1 AK |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
80922fbc | 19 | * |
3d396eb1 AK |
20 | * The full GNU General Public License is included in this distribution |
21 | * in the file called LICENSE. | |
80922fbc | 22 | * |
3d396eb1 AK |
23 | * Contact Information: |
24 | * info@netxen.com | |
25 | * NetXen, | |
26 | * 3965 Freedom Circle, Fourth floor, | |
27 | * Santa Clara, CA 95054 | |
28 | * | |
29 | * | |
30 | * Source file for NIC routines to initialize the Phantom Hardware | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/netdevice.h> | |
35 | #include <linux/delay.h> | |
36 | #include "netxen_nic.h" | |
37 | #include "netxen_nic_hw.h" | |
3d396eb1 AK |
38 | #include "netxen_nic_phan_reg.h" |
39 | ||
40 | struct crb_addr_pair { | |
e0e20a1a LCMT |
41 | u32 addr; |
42 | u32 data; | |
3d396eb1 AK |
43 | }; |
44 | ||
b58ecad8 LCMT |
45 | unsigned long last_schedule_time; |
46 | ||
3d396eb1 AK |
47 | #define NETXEN_MAX_CRB_XFORM 60 |
48 | static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; | |
e0e20a1a | 49 | #define NETXEN_ADDR_ERROR (0xffffffff) |
3d396eb1 AK |
50 | |
51 | #define crb_addr_transform(name) \ | |
52 | crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ | |
53 | NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 | |
54 | ||
cb8011ad AK |
55 | #define NETXEN_NIC_XDMA_RESET 0x8000ff |
56 | ||
993fb90c AB |
57 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
58 | uint32_t ctx, uint32_t ringid); | |
59 | ||
60 | #if 0 | |
61 | static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter, | |
62 | unsigned long off, int *data) | |
3d396eb1 | 63 | { |
cb8011ad | 64 | void __iomem *addr = pci_base_offset(adapter, off); |
3d396eb1 AK |
65 | writel(*data, addr); |
66 | } | |
993fb90c | 67 | #endif /* 0 */ |
3d396eb1 AK |
68 | |
69 | static void crb_addr_transform_setup(void) | |
70 | { | |
71 | crb_addr_transform(XDMA); | |
72 | crb_addr_transform(TIMR); | |
73 | crb_addr_transform(SRE); | |
74 | crb_addr_transform(SQN3); | |
75 | crb_addr_transform(SQN2); | |
76 | crb_addr_transform(SQN1); | |
77 | crb_addr_transform(SQN0); | |
78 | crb_addr_transform(SQS3); | |
79 | crb_addr_transform(SQS2); | |
80 | crb_addr_transform(SQS1); | |
81 | crb_addr_transform(SQS0); | |
82 | crb_addr_transform(RPMX7); | |
83 | crb_addr_transform(RPMX6); | |
84 | crb_addr_transform(RPMX5); | |
85 | crb_addr_transform(RPMX4); | |
86 | crb_addr_transform(RPMX3); | |
87 | crb_addr_transform(RPMX2); | |
88 | crb_addr_transform(RPMX1); | |
89 | crb_addr_transform(RPMX0); | |
90 | crb_addr_transform(ROMUSB); | |
91 | crb_addr_transform(SN); | |
92 | crb_addr_transform(QMN); | |
93 | crb_addr_transform(QMS); | |
94 | crb_addr_transform(PGNI); | |
95 | crb_addr_transform(PGND); | |
96 | crb_addr_transform(PGN3); | |
97 | crb_addr_transform(PGN2); | |
98 | crb_addr_transform(PGN1); | |
99 | crb_addr_transform(PGN0); | |
100 | crb_addr_transform(PGSI); | |
101 | crb_addr_transform(PGSD); | |
102 | crb_addr_transform(PGS3); | |
103 | crb_addr_transform(PGS2); | |
104 | crb_addr_transform(PGS1); | |
105 | crb_addr_transform(PGS0); | |
106 | crb_addr_transform(PS); | |
107 | crb_addr_transform(PH); | |
108 | crb_addr_transform(NIU); | |
109 | crb_addr_transform(I2Q); | |
110 | crb_addr_transform(EG); | |
111 | crb_addr_transform(MN); | |
112 | crb_addr_transform(MS); | |
113 | crb_addr_transform(CAS2); | |
114 | crb_addr_transform(CAS1); | |
115 | crb_addr_transform(CAS0); | |
116 | crb_addr_transform(CAM); | |
117 | crb_addr_transform(C2C1); | |
118 | crb_addr_transform(C2C0); | |
1fcca1a5 | 119 | crb_addr_transform(SMB); |
3d396eb1 AK |
120 | } |
121 | ||
122 | int netxen_init_firmware(struct netxen_adapter *adapter) | |
123 | { | |
124 | u32 state = 0, loops = 0, err = 0; | |
125 | ||
126 | /* Window 1 call */ | |
127 | state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
128 | ||
129 | if (state == PHAN_INITIALIZE_ACK) | |
130 | return 0; | |
131 | ||
132 | while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) { | |
133 | udelay(100); | |
134 | /* Window 1 call */ | |
135 | state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
136 | ||
137 | loops++; | |
138 | } | |
139 | if (loops >= 2000) { | |
140 | printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n", | |
141 | state); | |
142 | err = -EIO; | |
143 | return err; | |
144 | } | |
145 | /* Window 1 call */ | |
2d1a3bbd | 146 | writel(INTR_SCHEME_PERPORT, |
147 | NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST)); | |
3176ff3e | 148 | writel(MPORT_MULTI_FUNCTION_MODE, |
ed25ffa1 | 149 | NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE)); |
3d396eb1 AK |
150 | writel(PHAN_INITIALIZE_ACK, |
151 | NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
152 | ||
153 | return err; | |
154 | } | |
155 | ||
cb8011ad AK |
156 | #define NETXEN_ADDR_LIMIT 0xffffffffULL |
157 | ||
158 | void *netxen_alloc(struct pci_dev *pdev, size_t sz, dma_addr_t * ptr, | |
159 | struct pci_dev **used_dev) | |
160 | { | |
161 | void *addr; | |
162 | ||
163 | addr = pci_alloc_consistent(pdev, sz, ptr); | |
164 | if ((unsigned long long)(*ptr) < NETXEN_ADDR_LIMIT) { | |
165 | *used_dev = pdev; | |
166 | return addr; | |
167 | } | |
168 | pci_free_consistent(pdev, sz, addr, *ptr); | |
169 | addr = pci_alloc_consistent(NULL, sz, ptr); | |
170 | *used_dev = NULL; | |
171 | return addr; | |
172 | } | |
173 | ||
3d396eb1 AK |
174 | void netxen_initialize_adapter_sw(struct netxen_adapter *adapter) |
175 | { | |
176 | int ctxid, ring; | |
177 | u32 i; | |
178 | u32 num_rx_bufs = 0; | |
179 | struct netxen_rcv_desc_ctx *rcv_desc; | |
180 | ||
181 | DPRINTK(INFO, "initializing some queues: %p\n", adapter); | |
182 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { | |
183 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
184 | struct netxen_rx_buffer *rx_buf; | |
185 | rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring]; | |
186 | rcv_desc->rcv_free = rcv_desc->max_rx_desc_count; | |
187 | rcv_desc->begin_alloc = 0; | |
188 | rx_buf = rcv_desc->rx_buf_arr; | |
189 | num_rx_bufs = rcv_desc->max_rx_desc_count; | |
190 | /* | |
191 | * Now go through all of them, set reference handles | |
192 | * and put them in the queues. | |
193 | */ | |
194 | for (i = 0; i < num_rx_bufs; i++) { | |
195 | rx_buf->ref_handle = i; | |
196 | rx_buf->state = NETXEN_BUFFER_FREE; | |
3d396eb1 AK |
197 | DPRINTK(INFO, "Rx buf:ctx%d i(%d) rx_buf:" |
198 | "%p\n", ctxid, i, rx_buf); | |
199 | rx_buf++; | |
200 | } | |
201 | } | |
202 | } | |
3d396eb1 AK |
203 | } |
204 | ||
205 | void netxen_initialize_adapter_hw(struct netxen_adapter *adapter) | |
206 | { | |
cb8011ad AK |
207 | int ports = 0; |
208 | struct netxen_board_info *board_info = &(adapter->ahw.boardcfg); | |
209 | ||
3d396eb1 AK |
210 | if (netxen_nic_get_board_info(adapter) != 0) |
211 | printk("%s: Error getting board config info.\n", | |
212 | netxen_nic_driver_name); | |
cb8011ad AK |
213 | get_brd_port_by_type(board_info->board_type, &ports); |
214 | if (ports == 0) | |
3d396eb1 AK |
215 | printk(KERN_ERR "%s: Unknown board type\n", |
216 | netxen_nic_driver_name); | |
cb8011ad | 217 | adapter->ahw.max_ports = ports; |
3d396eb1 AK |
218 | } |
219 | ||
220 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) | |
221 | { | |
3d396eb1 AK |
222 | switch (adapter->ahw.board_type) { |
223 | case NETXEN_NIC_GBE: | |
80922fbc | 224 | adapter->enable_phy_interrupts = |
3d396eb1 | 225 | netxen_niu_gbe_enable_phy_interrupts; |
80922fbc | 226 | adapter->disable_phy_interrupts = |
3d396eb1 | 227 | netxen_niu_gbe_disable_phy_interrupts; |
80922fbc AK |
228 | adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr; |
229 | adapter->macaddr_set = netxen_niu_macaddr_set; | |
230 | adapter->set_mtu = netxen_nic_set_mtu_gb; | |
231 | adapter->set_promisc = netxen_niu_set_promiscuous_mode; | |
232 | adapter->unset_promisc = netxen_niu_set_promiscuous_mode; | |
233 | adapter->phy_read = netxen_niu_gbe_phy_read; | |
234 | adapter->phy_write = netxen_niu_gbe_phy_write; | |
80922fbc AK |
235 | adapter->init_niu = netxen_nic_init_niu_gb; |
236 | adapter->stop_port = netxen_niu_disable_gbe_port; | |
3d396eb1 AK |
237 | break; |
238 | ||
239 | case NETXEN_NIC_XGBE: | |
80922fbc | 240 | adapter->enable_phy_interrupts = |
3d396eb1 | 241 | netxen_niu_xgbe_enable_phy_interrupts; |
80922fbc | 242 | adapter->disable_phy_interrupts = |
3d396eb1 | 243 | netxen_niu_xgbe_disable_phy_interrupts; |
80922fbc AK |
244 | adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr; |
245 | adapter->macaddr_set = netxen_niu_xg_macaddr_set; | |
246 | adapter->set_mtu = netxen_nic_set_mtu_xgb; | |
247 | adapter->init_port = netxen_niu_xg_init_port; | |
248 | adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; | |
249 | adapter->unset_promisc = netxen_niu_xg_set_promiscuous_mode; | |
250 | adapter->stop_port = netxen_niu_disable_xg_port; | |
3d396eb1 AK |
251 | break; |
252 | ||
253 | default: | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
258 | /* | |
259 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB | |
260 | * address to external PCI CRB address. | |
261 | */ | |
993fb90c | 262 | static u32 netxen_decode_crb_addr(u32 addr) |
3d396eb1 AK |
263 | { |
264 | int i; | |
e0e20a1a | 265 | u32 base_addr, offset, pci_base; |
3d396eb1 AK |
266 | |
267 | crb_addr_transform_setup(); | |
268 | ||
269 | pci_base = NETXEN_ADDR_ERROR; | |
270 | base_addr = addr & 0xfff00000; | |
271 | offset = addr & 0x000fffff; | |
272 | ||
273 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { | |
274 | if (crb_addr_xform[i] == base_addr) { | |
275 | pci_base = i << 20; | |
276 | break; | |
277 | } | |
278 | } | |
279 | if (pci_base == NETXEN_ADDR_ERROR) | |
280 | return pci_base; | |
281 | else | |
282 | return (pci_base + offset); | |
283 | } | |
284 | ||
13ba9c77 MT |
285 | static long rom_max_timeout = 100; |
286 | static long rom_lock_timeout = 10000; | |
27d2ab54 | 287 | static long rom_write_timeout = 700; |
3d396eb1 | 288 | |
993fb90c | 289 | static int rom_lock(struct netxen_adapter *adapter) |
3d396eb1 AK |
290 | { |
291 | int iter; | |
292 | u32 done = 0; | |
293 | int timeout = 0; | |
294 | ||
295 | while (!done) { | |
296 | /* acquire semaphore2 from PCI HW block */ | |
297 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), | |
298 | &done); | |
299 | if (done == 1) | |
300 | break; | |
301 | if (timeout >= rom_lock_timeout) | |
302 | return -EIO; | |
303 | ||
304 | timeout++; | |
305 | /* | |
306 | * Yield CPU | |
307 | */ | |
308 | if (!in_atomic()) | |
309 | schedule(); | |
310 | else { | |
311 | for (iter = 0; iter < 20; iter++) | |
312 | cpu_relax(); /*This a nop instr on i386 */ | |
313 | } | |
314 | } | |
315 | netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); | |
316 | return 0; | |
317 | } | |
318 | ||
993fb90c | 319 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
3d396eb1 AK |
320 | { |
321 | long timeout = 0; | |
322 | long done = 0; | |
323 | ||
324 | while (done == 0) { | |
325 | done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); | |
326 | done &= 2; | |
327 | timeout++; | |
328 | if (timeout >= rom_max_timeout) { | |
329 | printk("Timeout reached waiting for rom done"); | |
330 | return -EIO; | |
331 | } | |
332 | } | |
333 | return 0; | |
334 | } | |
335 | ||
993fb90c | 336 | static int netxen_rom_wren(struct netxen_adapter *adapter) |
cb8011ad AK |
337 | { |
338 | /* Set write enable latch in ROM status register */ | |
339 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
340 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
341 | M25P_INSTR_WREN); | |
342 | if (netxen_wait_rom_done(adapter)) { | |
343 | return -1; | |
344 | } | |
345 | return 0; | |
346 | } | |
347 | ||
993fb90c AB |
348 | static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter, |
349 | unsigned int addr) | |
cb8011ad AK |
350 | { |
351 | unsigned int data = 0xdeaddead; | |
352 | data = netxen_nic_reg_read(adapter, addr); | |
353 | return data; | |
354 | } | |
355 | ||
993fb90c | 356 | static int netxen_do_rom_rdsr(struct netxen_adapter *adapter) |
cb8011ad AK |
357 | { |
358 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
359 | M25P_INSTR_RDSR); | |
360 | if (netxen_wait_rom_done(adapter)) { | |
361 | return -1; | |
362 | } | |
363 | return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA); | |
364 | } | |
365 | ||
993fb90c | 366 | static void netxen_rom_unlock(struct netxen_adapter *adapter) |
cb8011ad AK |
367 | { |
368 | u32 val; | |
369 | ||
370 | /* release semaphore2 */ | |
371 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); | |
372 | ||
373 | } | |
374 | ||
993fb90c | 375 | static int netxen_rom_wip_poll(struct netxen_adapter *adapter) |
cb8011ad AK |
376 | { |
377 | long timeout = 0; | |
378 | long wip = 1; | |
379 | int val; | |
380 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
381 | while (wip != 0) { | |
382 | val = netxen_do_rom_rdsr(adapter); | |
383 | wip = val & 1; | |
384 | timeout++; | |
385 | if (timeout > rom_max_timeout) { | |
386 | return -1; | |
387 | } | |
388 | } | |
389 | return 0; | |
390 | } | |
391 | ||
993fb90c AB |
392 | static int do_rom_fast_write(struct netxen_adapter *adapter, int addr, |
393 | int data) | |
cb8011ad AK |
394 | { |
395 | if (netxen_rom_wren(adapter)) { | |
396 | return -1; | |
397 | } | |
398 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data); | |
399 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); | |
400 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
401 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
402 | M25P_INSTR_PP); | |
403 | if (netxen_wait_rom_done(adapter)) { | |
404 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
405 | return -1; | |
406 | } | |
407 | ||
408 | return netxen_rom_wip_poll(adapter); | |
409 | } | |
410 | ||
993fb90c AB |
411 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
412 | int addr, int *valp) | |
3d396eb1 | 413 | { |
96acb6eb | 414 | cond_resched(); |
b58ecad8 | 415 | |
3d396eb1 AK |
416 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
417 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
b58ecad8 | 418 | udelay(100); /* prevent bursting on CRB */ |
3d396eb1 AK |
419 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
420 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); | |
421 | if (netxen_wait_rom_done(adapter)) { | |
422 | printk("Error waiting for rom done\n"); | |
423 | return -EIO; | |
424 | } | |
425 | /* reset abyte_cnt and dummy_byte_cnt */ | |
426 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
b58ecad8 | 427 | udelay(100); /* prevent bursting on CRB */ |
3d396eb1 AK |
428 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
429 | ||
430 | *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); | |
431 | return 0; | |
432 | } | |
433 | ||
993fb90c AB |
434 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
435 | u8 *bytes, size_t size) | |
27d2ab54 AK |
436 | { |
437 | int addridx; | |
438 | int ret = 0; | |
439 | ||
440 | for (addridx = addr; addridx < (addr + size); addridx += 4) { | |
441 | ret = do_rom_fast_read(adapter, addridx, (int *)bytes); | |
442 | if (ret != 0) | |
443 | break; | |
6d1495f2 | 444 | *(int *)bytes = cpu_to_le32(*(int *)bytes); |
27d2ab54 AK |
445 | bytes += 4; |
446 | } | |
447 | ||
448 | return ret; | |
449 | } | |
450 | ||
451 | int | |
452 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, | |
453 | u8 *bytes, size_t size) | |
454 | { | |
455 | int ret; | |
456 | ||
457 | ret = rom_lock(adapter); | |
458 | if (ret < 0) | |
459 | return ret; | |
460 | ||
461 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); | |
462 | ||
463 | netxen_rom_unlock(adapter); | |
464 | return ret; | |
465 | } | |
466 | ||
3d396eb1 AK |
467 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
468 | { | |
469 | int ret; | |
470 | ||
471 | if (rom_lock(adapter) != 0) | |
472 | return -EIO; | |
473 | ||
474 | ret = do_rom_fast_read(adapter, addr, valp); | |
cb8011ad AK |
475 | netxen_rom_unlock(adapter); |
476 | return ret; | |
477 | } | |
478 | ||
993fb90c | 479 | #if 0 |
cb8011ad AK |
480 | int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data) |
481 | { | |
482 | int ret = 0; | |
483 | ||
484 | if (rom_lock(adapter) != 0) { | |
485 | return -1; | |
486 | } | |
487 | ret = do_rom_fast_write(adapter, addr, data); | |
488 | netxen_rom_unlock(adapter); | |
489 | return ret; | |
490 | } | |
993fb90c | 491 | #endif /* 0 */ |
27d2ab54 | 492 | |
993fb90c AB |
493 | static int do_rom_fast_write_words(struct netxen_adapter *adapter, |
494 | int addr, u8 *bytes, size_t size) | |
27d2ab54 AK |
495 | { |
496 | int addridx = addr; | |
497 | int ret = 0; | |
498 | ||
499 | while (addridx < (addr + size)) { | |
500 | int last_attempt = 0; | |
501 | int timeout = 0; | |
502 | int data; | |
503 | ||
6d1495f2 | 504 | data = le32_to_cpu((*(u32*)bytes)); |
27d2ab54 AK |
505 | ret = do_rom_fast_write(adapter, addridx, data); |
506 | if (ret < 0) | |
507 | return ret; | |
508 | ||
509 | while(1) { | |
510 | int data1; | |
511 | ||
f8dfdd5c SH |
512 | ret = do_rom_fast_read(adapter, addridx, &data1); |
513 | if (ret < 0) | |
514 | return ret; | |
515 | ||
27d2ab54 AK |
516 | if (data1 == data) |
517 | break; | |
518 | ||
519 | if (timeout++ >= rom_write_timeout) { | |
520 | if (last_attempt++ < 4) { | |
521 | ret = do_rom_fast_write(adapter, | |
522 | addridx, data); | |
523 | if (ret < 0) | |
524 | return ret; | |
525 | } | |
526 | else { | |
527 | printk(KERN_INFO "Data write did not " | |
528 | "succeed at address 0x%x\n", addridx); | |
529 | break; | |
530 | } | |
531 | } | |
532 | } | |
533 | ||
534 | bytes += 4; | |
535 | addridx += 4; | |
536 | } | |
537 | ||
538 | return ret; | |
539 | } | |
540 | ||
541 | int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr, | |
542 | u8 *bytes, size_t size) | |
543 | { | |
544 | int ret = 0; | |
545 | ||
546 | ret = rom_lock(adapter); | |
547 | if (ret < 0) | |
548 | return ret; | |
549 | ||
550 | ret = do_rom_fast_write_words(adapter, addr, bytes, size); | |
551 | netxen_rom_unlock(adapter); | |
552 | ||
553 | return ret; | |
554 | } | |
555 | ||
993fb90c | 556 | static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data) |
27d2ab54 AK |
557 | { |
558 | int ret; | |
559 | ||
560 | ret = netxen_rom_wren(adapter); | |
561 | if (ret < 0) | |
562 | return ret; | |
563 | ||
564 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data); | |
565 | netxen_crb_writelit_adapter(adapter, | |
566 | NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1); | |
567 | ||
568 | ret = netxen_wait_rom_done(adapter); | |
569 | if (ret < 0) | |
570 | return ret; | |
571 | ||
572 | return netxen_rom_wip_poll(adapter); | |
573 | } | |
574 | ||
993fb90c | 575 | static int netxen_rom_rdsr(struct netxen_adapter *adapter) |
27d2ab54 AK |
576 | { |
577 | int ret; | |
578 | ||
579 | ret = rom_lock(adapter); | |
580 | if (ret < 0) | |
581 | return ret; | |
582 | ||
583 | ret = netxen_do_rom_rdsr(adapter); | |
584 | netxen_rom_unlock(adapter); | |
585 | return ret; | |
586 | } | |
587 | ||
588 | int netxen_backup_crbinit(struct netxen_adapter *adapter) | |
589 | { | |
590 | int ret = FLASH_SUCCESS; | |
591 | int val; | |
0d04761d | 592 | char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL); |
27d2ab54 AK |
593 | |
594 | if (!buffer) | |
595 | return -ENOMEM; | |
596 | /* unlock sector 63 */ | |
597 | val = netxen_rom_rdsr(adapter); | |
598 | val = val & 0xe3; | |
599 | ret = netxen_rom_wrsr(adapter, val); | |
600 | if (ret != FLASH_SUCCESS) | |
601 | goto out_kfree; | |
602 | ||
603 | ret = netxen_rom_wip_poll(adapter); | |
604 | if (ret != FLASH_SUCCESS) | |
605 | goto out_kfree; | |
606 | ||
607 | /* copy sector 0 to sector 63 */ | |
0d04761d MT |
608 | ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START, |
609 | buffer, NETXEN_FLASH_SECTOR_SIZE); | |
27d2ab54 AK |
610 | if (ret != FLASH_SUCCESS) |
611 | goto out_kfree; | |
612 | ||
0d04761d MT |
613 | ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START, |
614 | buffer, NETXEN_FLASH_SECTOR_SIZE); | |
27d2ab54 AK |
615 | if (ret != FLASH_SUCCESS) |
616 | goto out_kfree; | |
617 | ||
618 | /* lock sector 63 */ | |
619 | val = netxen_rom_rdsr(adapter); | |
620 | if (!(val & 0x8)) { | |
621 | val |= (0x1 << 2); | |
622 | /* lock sector 63 */ | |
623 | if (netxen_rom_wrsr(adapter, val) == 0) { | |
624 | ret = netxen_rom_wip_poll(adapter); | |
625 | if (ret != FLASH_SUCCESS) | |
626 | goto out_kfree; | |
627 | ||
628 | /* lock SR writes */ | |
629 | ret = netxen_rom_wip_poll(adapter); | |
630 | if (ret != FLASH_SUCCESS) | |
631 | goto out_kfree; | |
632 | } | |
633 | } | |
634 | ||
635 | out_kfree: | |
636 | kfree(buffer); | |
637 | return ret; | |
638 | } | |
639 | ||
993fb90c | 640 | static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr) |
cb8011ad AK |
641 | { |
642 | netxen_rom_wren(adapter); | |
643 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); | |
644 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
645 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
646 | M25P_INSTR_SE); | |
647 | if (netxen_wait_rom_done(adapter)) { | |
648 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
649 | return -1; | |
650 | } | |
651 | return netxen_rom_wip_poll(adapter); | |
652 | } | |
653 | ||
993fb90c | 654 | static void check_erased_flash(struct netxen_adapter *adapter, int addr) |
27d2ab54 AK |
655 | { |
656 | int i; | |
657 | int val; | |
658 | int count = 0, erased_errors = 0; | |
659 | int range; | |
660 | ||
0d04761d MT |
661 | range = (addr == NETXEN_USER_START) ? |
662 | NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE; | |
27d2ab54 AK |
663 | |
664 | for (i = addr; i < range; i += 4) { | |
665 | netxen_rom_fast_read(adapter, i, &val); | |
666 | if (val != 0xffffffff) | |
667 | erased_errors++; | |
668 | count++; | |
669 | } | |
670 | ||
671 | if (erased_errors) | |
672 | printk(KERN_INFO "0x%x out of 0x%x words fail to be erased " | |
673 | "for sector address: %x\n", erased_errors, count, addr); | |
674 | } | |
675 | ||
cb8011ad AK |
676 | int netxen_rom_se(struct netxen_adapter *adapter, int addr) |
677 | { | |
678 | int ret = 0; | |
679 | if (rom_lock(adapter) != 0) { | |
680 | return -1; | |
681 | } | |
682 | ret = netxen_do_rom_se(adapter, addr); | |
683 | netxen_rom_unlock(adapter); | |
27d2ab54 AK |
684 | msleep(30); |
685 | check_erased_flash(adapter, addr); | |
686 | ||
687 | return ret; | |
688 | } | |
689 | ||
993fb90c AB |
690 | static int netxen_flash_erase_sections(struct netxen_adapter *adapter, |
691 | int start, int end) | |
27d2ab54 AK |
692 | { |
693 | int ret = FLASH_SUCCESS; | |
694 | int i; | |
695 | ||
696 | for (i = start; i < end; i++) { | |
0d04761d | 697 | ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE); |
27d2ab54 AK |
698 | if (ret) |
699 | break; | |
700 | ret = netxen_rom_wip_poll(adapter); | |
701 | if (ret < 0) | |
702 | return ret; | |
703 | } | |
704 | ||
705 | return ret; | |
706 | } | |
707 | ||
708 | int | |
709 | netxen_flash_erase_secondary(struct netxen_adapter *adapter) | |
710 | { | |
711 | int ret = FLASH_SUCCESS; | |
712 | int start, end; | |
713 | ||
0d04761d MT |
714 | start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; |
715 | end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE; | |
27d2ab54 AK |
716 | ret = netxen_flash_erase_sections(adapter, start, end); |
717 | ||
718 | return ret; | |
719 | } | |
720 | ||
721 | int | |
722 | netxen_flash_erase_primary(struct netxen_adapter *adapter) | |
723 | { | |
724 | int ret = FLASH_SUCCESS; | |
725 | int start, end; | |
726 | ||
0d04761d MT |
727 | start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE; |
728 | end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; | |
27d2ab54 AK |
729 | ret = netxen_flash_erase_sections(adapter, start, end); |
730 | ||
731 | return ret; | |
732 | } | |
733 | ||
e45d9ab4 AK |
734 | void netxen_halt_pegs(struct netxen_adapter *adapter) |
735 | { | |
736 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1); | |
737 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1); | |
738 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1); | |
739 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1); | |
740 | } | |
741 | ||
27d2ab54 AK |
742 | int netxen_flash_unlock(struct netxen_adapter *adapter) |
743 | { | |
744 | int ret = 0; | |
745 | ||
746 | ret = netxen_rom_wrsr(adapter, 0); | |
747 | if (ret < 0) | |
748 | return ret; | |
749 | ||
750 | ret = netxen_rom_wren(adapter); | |
751 | if (ret < 0) | |
752 | return ret; | |
753 | ||
3d396eb1 AK |
754 | return ret; |
755 | } | |
756 | ||
757 | #define NETXEN_BOARDTYPE 0x4008 | |
758 | #define NETXEN_BOARDNUM 0x400c | |
759 | #define NETXEN_CHIPNUM 0x4010 | |
760 | #define NETXEN_ROMBUS_RESET 0xFFFFFFFF | |
761 | #define NETXEN_ROM_FIRST_BARRIER 0x800000000ULL | |
762 | #define NETXEN_ROM_FOUND_INIT 0x400 | |
763 | ||
764 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) | |
765 | { | |
766 | int addr, val, status; | |
767 | int n, i; | |
768 | int init_delay = 0; | |
769 | struct crb_addr_pair *buf; | |
e0e20a1a | 770 | u32 off; |
3d396eb1 AK |
771 | |
772 | /* resetall */ | |
773 | status = netxen_nic_get_board_info(adapter); | |
774 | if (status) | |
cb8011ad | 775 | printk("%s: netxen_pinit_from_rom: Error getting board info\n", |
3d396eb1 AK |
776 | netxen_nic_driver_name); |
777 | ||
778 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, | |
779 | NETXEN_ROMBUS_RESET); | |
780 | ||
781 | if (verbose) { | |
782 | int val; | |
783 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) | |
784 | printk("P2 ROM board type: 0x%08x\n", val); | |
785 | else | |
786 | printk("Could not read board type\n"); | |
787 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) | |
788 | printk("P2 ROM board num: 0x%08x\n", val); | |
789 | else | |
790 | printk("Could not read board number\n"); | |
791 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) | |
792 | printk("P2 ROM chip num: 0x%08x\n", val); | |
793 | else | |
794 | printk("Could not read chip number\n"); | |
795 | } | |
796 | ||
797 | if (netxen_rom_fast_read(adapter, 0, &n) == 0 | |
798 | && (n & NETXEN_ROM_FIRST_BARRIER)) { | |
799 | n &= ~NETXEN_ROM_ROUNDUP; | |
800 | if (n < NETXEN_ROM_FOUND_INIT) { | |
801 | if (verbose) | |
802 | printk("%s: %d CRB init values found" | |
803 | " in ROM.\n", netxen_nic_driver_name, n); | |
804 | } else { | |
805 | printk("%s:n=0x%x Error! NetXen card flash not" | |
806 | " initialized.\n", __FUNCTION__, n); | |
807 | return -EIO; | |
808 | } | |
809 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); | |
810 | if (buf == NULL) { | |
cb8011ad AK |
811 | printk("%s: netxen_pinit_from_rom: Unable to calloc " |
812 | "memory.\n", netxen_nic_driver_name); | |
3d396eb1 AK |
813 | return -ENOMEM; |
814 | } | |
815 | for (i = 0; i < n; i++) { | |
816 | if (netxen_rom_fast_read(adapter, 8 * i + 4, &val) != 0 | |
817 | || netxen_rom_fast_read(adapter, 8 * i + 8, | |
818 | &addr) != 0) | |
819 | return -EIO; | |
820 | ||
821 | buf[i].addr = addr; | |
822 | buf[i].data = val; | |
823 | ||
824 | if (verbose) | |
825 | printk("%s: PCI: 0x%08x == 0x%08x\n", | |
826 | netxen_nic_driver_name, (unsigned int) | |
e0e20a1a | 827 | netxen_decode_crb_addr(addr), val); |
3d396eb1 AK |
828 | } |
829 | for (i = 0; i < n; i++) { | |
830 | ||
e0e20a1a | 831 | off = netxen_decode_crb_addr(buf[i].addr); |
1fcca1a5 | 832 | if (off == NETXEN_ADDR_ERROR) { |
e0e20a1a | 833 | printk(KERN_ERR"CRB init value out of range %x\n", |
1fcca1a5 AK |
834 | buf[i].addr); |
835 | continue; | |
836 | } | |
837 | off += NETXEN_PCI_CRBSPACE; | |
3d396eb1 AK |
838 | /* skipping cold reboot MAGIC */ |
839 | if (off == NETXEN_CAM_RAM(0x1fc)) | |
840 | continue; | |
841 | ||
842 | /* After writing this register, HW needs time for CRB */ | |
843 | /* to quiet down (else crb_window returns 0xffffffff) */ | |
844 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { | |
845 | init_delay = 1; | |
846 | /* hold xdma in reset also */ | |
cb8011ad | 847 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
3d396eb1 AK |
848 | } |
849 | ||
850 | if (ADDR_IN_WINDOW1(off)) { | |
851 | writel(buf[i].data, | |
852 | NETXEN_CRB_NORMALIZE(adapter, off)); | |
853 | } else { | |
854 | netxen_nic_pci_change_crbwindow(adapter, 0); | |
855 | writel(buf[i].data, | |
cb8011ad | 856 | pci_base_offset(adapter, off)); |
3d396eb1 AK |
857 | |
858 | netxen_nic_pci_change_crbwindow(adapter, 1); | |
859 | } | |
860 | if (init_delay == 1) { | |
96acb6eb | 861 | msleep(2000); |
3d396eb1 AK |
862 | init_delay = 0; |
863 | } | |
96acb6eb | 864 | msleep(20); |
3d396eb1 AK |
865 | } |
866 | kfree(buf); | |
867 | ||
868 | /* disable_peg_cache_all */ | |
869 | ||
870 | /* unreset_net_cache */ | |
871 | netxen_nic_hw_read_wx(adapter, NETXEN_ROMUSB_GLB_SW_RESET, &val, | |
872 | 4); | |
873 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, | |
874 | (val & 0xffffff0f)); | |
875 | /* p2dn replyCount */ | |
876 | netxen_crb_writelit_adapter(adapter, | |
877 | NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); | |
878 | /* disable_peg_cache 0 */ | |
879 | netxen_crb_writelit_adapter(adapter, | |
880 | NETXEN_CRB_PEG_NET_D + 0x4c, 8); | |
881 | /* disable_peg_cache 1 */ | |
882 | netxen_crb_writelit_adapter(adapter, | |
883 | NETXEN_CRB_PEG_NET_I + 0x4c, 8); | |
884 | ||
885 | /* peg_clr_all */ | |
886 | ||
887 | /* peg_clr 0 */ | |
888 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, | |
889 | 0); | |
890 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, | |
891 | 0); | |
892 | /* peg_clr 1 */ | |
893 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, | |
894 | 0); | |
895 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, | |
896 | 0); | |
897 | /* peg_clr 2 */ | |
898 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, | |
899 | 0); | |
900 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, | |
901 | 0); | |
902 | /* peg_clr 3 */ | |
903 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, | |
904 | 0); | |
905 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, | |
906 | 0); | |
907 | } | |
908 | return 0; | |
909 | } | |
910 | ||
ed25ffa1 AK |
911 | int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) |
912 | { | |
913 | uint64_t addr; | |
914 | uint32_t hi; | |
915 | uint32_t lo; | |
916 | ||
917 | adapter->dummy_dma.addr = | |
918 | pci_alloc_consistent(adapter->ahw.pdev, | |
919 | NETXEN_HOST_DUMMY_DMA_SIZE, | |
920 | &adapter->dummy_dma.phys_addr); | |
921 | if (adapter->dummy_dma.addr == NULL) { | |
922 | printk("%s: ERROR: Could not allocate dummy DMA memory\n", | |
923 | __FUNCTION__); | |
924 | return -ENOMEM; | |
925 | } | |
926 | ||
927 | addr = (uint64_t) adapter->dummy_dma.phys_addr; | |
928 | hi = (addr >> 32) & 0xffffffff; | |
929 | lo = addr & 0xffffffff; | |
930 | ||
931 | writel(hi, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI)); | |
932 | writel(lo, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO)); | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | void netxen_free_adapter_offload(struct netxen_adapter *adapter) | |
938 | { | |
939 | if (adapter->dummy_dma.addr) { | |
940 | pci_free_consistent(adapter->ahw.pdev, | |
941 | NETXEN_HOST_DUMMY_DMA_SIZE, | |
942 | adapter->dummy_dma.addr, | |
943 | adapter->dummy_dma.phys_addr); | |
944 | adapter->dummy_dma.addr = NULL; | |
945 | } | |
946 | } | |
947 | ||
96acb6eb | 948 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
3d396eb1 AK |
949 | { |
950 | u32 val = 0; | |
96acb6eb | 951 | int retries = 30; |
3d396eb1 | 952 | |
cb8011ad | 953 | if (!pegtune_val) { |
96acb6eb DP |
954 | do { |
955 | val = readl(NETXEN_CRB_NORMALIZE | |
3d396eb1 | 956 | (adapter, CRB_CMDPEG_STATE)); |
96acb6eb DP |
957 | pegtune_val = readl(NETXEN_CRB_NORMALIZE |
958 | (adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); | |
959 | ||
960 | if (val == PHAN_INITIALIZE_COMPLETE || | |
961 | val == PHAN_INITIALIZE_ACK) | |
962 | return 0; | |
963 | ||
964 | msleep(1000); | |
965 | } while (--retries); | |
966 | if (!retries) { | |
967 | printk(KERN_WARNING "netxen_phantom_init: init failed, " | |
968 | "pegtune_val=%x\n", pegtune_val); | |
969 | return -1; | |
3d396eb1 | 970 | } |
3d396eb1 | 971 | } |
96acb6eb DP |
972 | |
973 | return 0; | |
3d396eb1 AK |
974 | } |
975 | ||
976 | int netxen_nic_rx_has_work(struct netxen_adapter *adapter) | |
977 | { | |
978 | int ctx; | |
979 | ||
980 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { | |
981 | struct netxen_recv_context *recv_ctx = | |
982 | &(adapter->recv_ctx[ctx]); | |
983 | u32 consumer; | |
984 | struct status_desc *desc_head; | |
cb8011ad | 985 | struct status_desc *desc; |
3d396eb1 AK |
986 | |
987 | consumer = recv_ctx->status_rx_consumer; | |
988 | desc_head = recv_ctx->rcv_status_desc_head; | |
989 | desc = &desc_head[consumer]; | |
990 | ||
a608ab9c | 991 | if (netxen_get_sts_owner(desc) & STATUS_OWNER_HOST) |
3d396eb1 AK |
992 | return 1; |
993 | } | |
994 | ||
995 | return 0; | |
996 | } | |
997 | ||
993fb90c | 998 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
cb8011ad | 999 | { |
3176ff3e | 1000 | struct net_device *netdev = adapter->netdev; |
cb8011ad AK |
1001 | uint32_t temp, temp_state, temp_val; |
1002 | int rv = 0; | |
1003 | ||
1004 | temp = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_TEMP_STATE)); | |
1005 | ||
1006 | temp_state = nx_get_temp_state(temp); | |
1007 | temp_val = nx_get_temp_val(temp); | |
1008 | ||
1009 | if (temp_state == NX_TEMP_PANIC) { | |
1010 | printk(KERN_ALERT | |
1011 | "%s: Device temperature %d degrees C exceeds" | |
1012 | " maximum allowed. Hardware has been shut down.\n", | |
1013 | netxen_nic_driver_name, temp_val); | |
cb8011ad | 1014 | |
3176ff3e MT |
1015 | netif_carrier_off(netdev); |
1016 | netif_stop_queue(netdev); | |
cb8011ad AK |
1017 | rv = 1; |
1018 | } else if (temp_state == NX_TEMP_WARN) { | |
1019 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1020 | printk(KERN_ALERT | |
1021 | "%s: Device temperature %d degrees C " | |
1022 | "exceeds operating range." | |
1023 | " Immediate action needed.\n", | |
1024 | netxen_nic_driver_name, temp_val); | |
1025 | } | |
1026 | } else { | |
1027 | if (adapter->temp == NX_TEMP_WARN) { | |
1028 | printk(KERN_INFO | |
1029 | "%s: Device temperature is now %d degrees C" | |
1030 | " in normal range.\n", netxen_nic_driver_name, | |
1031 | temp_val); | |
1032 | } | |
1033 | } | |
1034 | adapter->temp = temp_state; | |
1035 | return rv; | |
1036 | } | |
1037 | ||
6d5aefb8 | 1038 | void netxen_watchdog_task(struct work_struct *work) |
3d396eb1 | 1039 | { |
3d396eb1 | 1040 | struct net_device *netdev; |
6d5aefb8 DH |
1041 | struct netxen_adapter *adapter = |
1042 | container_of(work, struct netxen_adapter, watchdog_task); | |
3d396eb1 | 1043 | |
6c80b18d | 1044 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) |
cb8011ad AK |
1045 | return; |
1046 | ||
c27e6721 MT |
1047 | if (adapter->handle_phy_intr) |
1048 | adapter->handle_phy_intr(adapter); | |
1049 | ||
3176ff3e | 1050 | netdev = adapter->netdev; |
c27e6721 MT |
1051 | if ((netif_running(netdev)) && !netif_carrier_ok(netdev) && |
1052 | netxen_nic_link_ok(adapter) ) { | |
1053 | printk(KERN_INFO "%s %s (port %d), Link is up\n", | |
1054 | netxen_nic_driver_name, netdev->name, adapter->portnum); | |
3176ff3e | 1055 | netif_carrier_on(netdev); |
3176ff3e | 1056 | netif_wake_queue(netdev); |
c27e6721 MT |
1057 | } else if(!(netif_running(netdev)) && netif_carrier_ok(netdev)) { |
1058 | printk(KERN_ERR "%s %s Link is Down\n", | |
1059 | netxen_nic_driver_name, netdev->name); | |
1060 | netif_carrier_off(netdev); | |
1061 | netif_stop_queue(netdev); | |
1062 | } | |
3176ff3e | 1063 | |
3d396eb1 AK |
1064 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * netxen_process_rcv() send the received packet to the protocol stack. | |
1069 | * and if the number of receives exceeds RX_BUFFERS_REFILL, then we | |
1070 | * invoke the routine to send more rx buffers to the Phantom... | |
1071 | */ | |
993fb90c AB |
1072 | static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, |
1073 | struct status_desc *desc) | |
3d396eb1 | 1074 | { |
3176ff3e MT |
1075 | struct pci_dev *pdev = adapter->pdev; |
1076 | struct net_device *netdev = adapter->netdev; | |
5dc16268 DP |
1077 | u64 sts_data = le64_to_cpu(desc->status_desc_data); |
1078 | int index = netxen_get_sts_refhandle(sts_data); | |
3d396eb1 AK |
1079 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); |
1080 | struct netxen_rx_buffer *buffer; | |
1081 | struct sk_buff *skb; | |
5dc16268 | 1082 | u32 length = netxen_get_sts_totallength(sts_data); |
3d396eb1 AK |
1083 | u32 desc_ctx; |
1084 | struct netxen_rcv_desc_ctx *rcv_desc; | |
1085 | int ret; | |
1086 | ||
5dc16268 | 1087 | desc_ctx = netxen_get_sts_type(sts_data); |
3d396eb1 AK |
1088 | if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) { |
1089 | printk("%s: %s Bad Rcv descriptor ring\n", | |
1090 | netxen_nic_driver_name, netdev->name); | |
1091 | return; | |
1092 | } | |
1093 | ||
1094 | rcv_desc = &recv_ctx->rcv_desc[desc_ctx]; | |
ed25ffa1 AK |
1095 | if (unlikely(index > rcv_desc->max_rx_desc_count)) { |
1096 | DPRINTK(ERR, "Got a buffer index:%x Max is %x\n", | |
1097 | index, rcv_desc->max_rx_desc_count); | |
1098 | return; | |
1099 | } | |
3d396eb1 | 1100 | buffer = &rcv_desc->rx_buf_arr[index]; |
ed25ffa1 AK |
1101 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
1102 | buffer->lro_current_frags++; | |
1103 | if (netxen_get_sts_desc_lro_last_frag(desc)) { | |
1104 | buffer->lro_expected_frags = | |
1105 | netxen_get_sts_desc_lro_cnt(desc); | |
1106 | buffer->lro_length = length; | |
1107 | } | |
1108 | if (buffer->lro_current_frags != buffer->lro_expected_frags) { | |
1109 | if (buffer->lro_expected_frags != 0) { | |
5bc51424 JP |
1110 | printk("LRO: (refhandle:%x) recv frag. " |
1111 | "wait for last. flags: %x expected:%d " | |
ed25ffa1 AK |
1112 | "have:%d\n", index, |
1113 | netxen_get_sts_desc_lro_last_frag(desc), | |
1114 | buffer->lro_expected_frags, | |
1115 | buffer->lro_current_frags); | |
1116 | } | |
1117 | return; | |
1118 | } | |
1119 | } | |
3d396eb1 AK |
1120 | |
1121 | pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size, | |
1122 | PCI_DMA_FROMDEVICE); | |
1123 | ||
1124 | skb = (struct sk_buff *)buffer->skb; | |
1125 | ||
200eef20 | 1126 | if (likely(adapter->rx_csum && |
5dc16268 | 1127 | netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) { |
3176ff3e | 1128 | adapter->stats.csummed++; |
3d396eb1 | 1129 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
200eef20 DP |
1130 | } else |
1131 | skb->ip_summed = CHECKSUM_NONE; | |
1132 | ||
96acb6eb | 1133 | skb->dev = netdev; |
ed25ffa1 AK |
1134 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
1135 | /* True length was only available on the last pkt */ | |
1136 | skb_put(skb, buffer->lro_length); | |
1137 | } else { | |
1138 | skb_put(skb, length); | |
1139 | } | |
1140 | ||
3d396eb1 AK |
1141 | skb->protocol = eth_type_trans(skb, netdev); |
1142 | ||
1143 | ret = netif_receive_skb(skb); | |
1144 | ||
1145 | /* | |
1146 | * RH: Do we need these stats on a regular basis. Can we get it from | |
1147 | * Linux stats. | |
1148 | */ | |
1149 | switch (ret) { | |
1150 | case NET_RX_SUCCESS: | |
3176ff3e | 1151 | adapter->stats.uphappy++; |
3d396eb1 AK |
1152 | break; |
1153 | ||
1154 | case NET_RX_CN_LOW: | |
3176ff3e | 1155 | adapter->stats.uplcong++; |
3d396eb1 AK |
1156 | break; |
1157 | ||
1158 | case NET_RX_CN_MOD: | |
3176ff3e | 1159 | adapter->stats.upmcong++; |
3d396eb1 AK |
1160 | break; |
1161 | ||
1162 | case NET_RX_CN_HIGH: | |
3176ff3e | 1163 | adapter->stats.uphcong++; |
3d396eb1 AK |
1164 | break; |
1165 | ||
1166 | case NET_RX_DROP: | |
3176ff3e | 1167 | adapter->stats.updropped++; |
3d396eb1 AK |
1168 | break; |
1169 | ||
1170 | default: | |
3176ff3e | 1171 | adapter->stats.updunno++; |
3d396eb1 AK |
1172 | break; |
1173 | } | |
1174 | ||
1175 | netdev->last_rx = jiffies; | |
1176 | ||
1177 | rcv_desc->rcv_free++; | |
1178 | rcv_desc->rcv_pending--; | |
1179 | ||
1180 | /* | |
1181 | * We just consumed one buffer so post a buffer. | |
1182 | */ | |
3d396eb1 AK |
1183 | buffer->skb = NULL; |
1184 | buffer->state = NETXEN_BUFFER_FREE; | |
ed25ffa1 AK |
1185 | buffer->lro_current_frags = 0; |
1186 | buffer->lro_expected_frags = 0; | |
3d396eb1 | 1187 | |
3176ff3e MT |
1188 | adapter->stats.no_rcv++; |
1189 | adapter->stats.rxbytes += length; | |
3d396eb1 AK |
1190 | } |
1191 | ||
1192 | /* Process Receive status ring */ | |
1193 | u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max) | |
1194 | { | |
1195 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); | |
1196 | struct status_desc *desc_head = recv_ctx->rcv_status_desc_head; | |
1197 | struct status_desc *desc; /* used to read status desc here */ | |
1198 | u32 consumer = recv_ctx->status_rx_consumer; | |
ed25ffa1 | 1199 | u32 producer = 0; |
3d396eb1 AK |
1200 | int count = 0, ring; |
1201 | ||
1202 | DPRINTK(INFO, "procesing receive\n"); | |
1203 | /* | |
1204 | * we assume in this case that there is only one port and that is | |
1205 | * port #1...changes need to be done in firmware to indicate port | |
1206 | * number as part of the descriptor. This way we will be able to get | |
1207 | * the netdev which is associated with that device. | |
1208 | */ | |
1209 | while (count < max) { | |
1210 | desc = &desc_head[consumer]; | |
a608ab9c | 1211 | if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) { |
ed25ffa1 AK |
1212 | DPRINTK(ERR, "desc %p ownedby %x\n", desc, |
1213 | netxen_get_sts_owner(desc)); | |
3d396eb1 AK |
1214 | break; |
1215 | } | |
1216 | netxen_process_rcv(adapter, ctxid, desc); | |
a608ab9c | 1217 | netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM); |
3d396eb1 AK |
1218 | consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1); |
1219 | count++; | |
1220 | } | |
1221 | if (count) { | |
1222 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
ed25ffa1 | 1223 | netxen_post_rx_buffers_nodb(adapter, ctxid, ring); |
3d396eb1 AK |
1224 | } |
1225 | } | |
1226 | ||
1227 | /* update the consumer index in phantom */ | |
1228 | if (count) { | |
3d396eb1 | 1229 | recv_ctx->status_rx_consumer = consumer; |
ed25ffa1 | 1230 | recv_ctx->status_rx_producer = producer; |
3d396eb1 AK |
1231 | |
1232 | /* Window = 1 */ | |
1233 | writel(consumer, | |
1234 | NETXEN_CRB_NORMALIZE(adapter, | |
4a79a04e | 1235 | recv_crb_registers[adapter->portnum]. |
3d396eb1 | 1236 | crb_rcv_status_consumer)); |
96acb6eb | 1237 | wmb(); |
3d396eb1 AK |
1238 | } |
1239 | ||
1240 | return count; | |
1241 | } | |
1242 | ||
1243 | /* Process Command status ring */ | |
ed25ffa1 | 1244 | int netxen_process_cmd_ring(unsigned long data) |
3d396eb1 AK |
1245 | { |
1246 | u32 last_consumer; | |
1247 | u32 consumer; | |
1248 | struct netxen_adapter *adapter = (struct netxen_adapter *)data; | |
ed25ffa1 AK |
1249 | int count1 = 0; |
1250 | int count2 = 0; | |
3d396eb1 | 1251 | struct netxen_cmd_buffer *buffer; |
3d396eb1 AK |
1252 | struct pci_dev *pdev; |
1253 | struct netxen_skb_frag *frag; | |
1254 | u32 i; | |
ed25ffa1 | 1255 | int done; |
3d396eb1 AK |
1256 | |
1257 | spin_lock(&adapter->tx_lock); | |
1258 | last_consumer = adapter->last_cmd_consumer; | |
1259 | DPRINTK(INFO, "procesing xmit complete\n"); | |
1260 | /* we assume in this case that there is only one port and that is | |
1261 | * port #1...changes need to be done in firmware to indicate port | |
1262 | * number as part of the descriptor. This way we will be able to get | |
1263 | * the netdev which is associated with that device. | |
1264 | */ | |
3d396eb1 | 1265 | |
9b410117 | 1266 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
3d396eb1 AK |
1267 | if (last_consumer == consumer) { /* Ring is empty */ |
1268 | DPRINTK(INFO, "last_consumer %d == consumer %d\n", | |
1269 | last_consumer, consumer); | |
1270 | spin_unlock(&adapter->tx_lock); | |
ed25ffa1 | 1271 | return 1; |
3d396eb1 AK |
1272 | } |
1273 | ||
1274 | adapter->proc_cmd_buf_counter++; | |
3d396eb1 AK |
1275 | /* |
1276 | * Not needed - does not seem to be used anywhere. | |
1277 | * adapter->cmd_consumer = consumer; | |
1278 | */ | |
1279 | spin_unlock(&adapter->tx_lock); | |
1280 | ||
ed25ffa1 | 1281 | while ((last_consumer != consumer) && (count1 < MAX_STATUS_HANDLE)) { |
3d396eb1 | 1282 | buffer = &adapter->cmd_buf_arr[last_consumer]; |
3176ff3e | 1283 | pdev = adapter->pdev; |
53a01e00 | 1284 | if (buffer->skb) { |
1285 | frag = &buffer->frag_array[0]; | |
3d396eb1 AK |
1286 | pci_unmap_single(pdev, frag->dma, frag->length, |
1287 | PCI_DMA_TODEVICE); | |
96acb6eb | 1288 | frag->dma = 0ULL; |
3d396eb1 AK |
1289 | for (i = 1; i < buffer->frag_count; i++) { |
1290 | DPRINTK(INFO, "getting fragment no %d\n", i); | |
1291 | frag++; /* Get the next frag */ | |
1292 | pci_unmap_page(pdev, frag->dma, frag->length, | |
1293 | PCI_DMA_TODEVICE); | |
96acb6eb | 1294 | frag->dma = 0ULL; |
3d396eb1 AK |
1295 | } |
1296 | ||
3176ff3e | 1297 | adapter->stats.skbfreed++; |
53a01e00 | 1298 | dev_kfree_skb_any(buffer->skb); |
1299 | buffer->skb = NULL; | |
3d396eb1 | 1300 | } else if (adapter->proc_cmd_buf_counter == 1) { |
3176ff3e | 1301 | adapter->stats.txnullskb++; |
3d396eb1 | 1302 | } |
3176ff3e MT |
1303 | if (unlikely(netif_queue_stopped(adapter->netdev) |
1304 | && netif_carrier_ok(adapter->netdev)) | |
1305 | && ((jiffies - adapter->netdev->trans_start) > | |
1306 | adapter->netdev->watchdog_timeo)) { | |
1307 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1308 | } |
1309 | ||
1310 | last_consumer = get_next_index(last_consumer, | |
1311 | adapter->max_tx_desc_count); | |
ed25ffa1 | 1312 | count1++; |
3d396eb1 | 1313 | } |
3d396eb1 | 1314 | |
ed25ffa1 | 1315 | count2 = 0; |
3d396eb1 AK |
1316 | spin_lock(&adapter->tx_lock); |
1317 | if ((--adapter->proc_cmd_buf_counter) == 0) { | |
1318 | adapter->last_cmd_consumer = last_consumer; | |
1319 | while ((adapter->last_cmd_consumer != consumer) | |
ed25ffa1 | 1320 | && (count2 < MAX_STATUS_HANDLE)) { |
3d396eb1 AK |
1321 | buffer = |
1322 | &adapter->cmd_buf_arr[adapter->last_cmd_consumer]; | |
ed25ffa1 | 1323 | count2++; |
3d396eb1 AK |
1324 | if (buffer->skb) |
1325 | break; | |
1326 | else | |
1327 | adapter->last_cmd_consumer = | |
1328 | get_next_index(adapter->last_cmd_consumer, | |
1329 | adapter->max_tx_desc_count); | |
1330 | } | |
1331 | } | |
ed25ffa1 | 1332 | if (count1 || count2) { |
3176ff3e MT |
1333 | if (netif_queue_stopped(adapter->netdev) |
1334 | && (adapter->flags & NETXEN_NETDEV_STATUS)) { | |
1335 | netif_wake_queue(adapter->netdev); | |
1336 | adapter->flags &= ~NETXEN_NETDEV_STATUS; | |
3d396eb1 AK |
1337 | } |
1338 | } | |
ed25ffa1 AK |
1339 | /* |
1340 | * If everything is freed up to consumer then check if the ring is full | |
1341 | * If the ring is full then check if more needs to be freed and | |
1342 | * schedule the call back again. | |
1343 | * | |
1344 | * This happens when there are 2 CPUs. One could be freeing and the | |
1345 | * other filling it. If the ring is full when we get out of here and | |
1346 | * the card has already interrupted the host then the host can miss the | |
1347 | * interrupt. | |
1348 | * | |
1349 | * There is still a possible race condition and the host could miss an | |
1350 | * interrupt. The card has to take care of this. | |
1351 | */ | |
1352 | if (adapter->last_cmd_consumer == consumer && | |
1353 | (((adapter->cmd_producer + 1) % | |
1354 | adapter->max_tx_desc_count) == adapter->last_cmd_consumer)) { | |
9b410117 | 1355 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
ed25ffa1 AK |
1356 | } |
1357 | done = (adapter->last_cmd_consumer == consumer); | |
3d396eb1 AK |
1358 | |
1359 | spin_unlock(&adapter->tx_lock); | |
1360 | DPRINTK(INFO, "last consumer is %d in %s\n", last_consumer, | |
1361 | __FUNCTION__); | |
ed25ffa1 | 1362 | return (done); |
3d396eb1 AK |
1363 | } |
1364 | ||
1365 | /* | |
1366 | * netxen_post_rx_buffers puts buffer in the Phantom memory | |
1367 | */ | |
1368 | void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) | |
1369 | { | |
1370 | struct pci_dev *pdev = adapter->ahw.pdev; | |
1371 | struct sk_buff *skb; | |
1372 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); | |
1373 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
ed25ffa1 | 1374 | uint producer; |
3d396eb1 AK |
1375 | struct rcv_desc *pdesc; |
1376 | struct netxen_rx_buffer *buffer; | |
1377 | int count = 0; | |
1378 | int index = 0; | |
ed25ffa1 AK |
1379 | netxen_ctx_msg msg = 0; |
1380 | dma_addr_t dma; | |
3d396eb1 | 1381 | |
3d396eb1 | 1382 | rcv_desc = &recv_ctx->rcv_desc[ringid]; |
3d396eb1 AK |
1383 | |
1384 | producer = rcv_desc->producer; | |
1385 | index = rcv_desc->begin_alloc; | |
1386 | buffer = &rcv_desc->rx_buf_arr[index]; | |
1387 | /* We can start writing rx descriptors into the phantom memory. */ | |
1388 | while (buffer->state == NETXEN_BUFFER_FREE) { | |
1389 | skb = dev_alloc_skb(rcv_desc->skb_size); | |
1390 | if (unlikely(!skb)) { | |
1391 | /* | |
ed25ffa1 | 1392 | * TODO |
3d396eb1 AK |
1393 | * We need to schedule the posting of buffers to the pegs. |
1394 | */ | |
1395 | rcv_desc->begin_alloc = index; | |
cb8011ad | 1396 | DPRINTK(ERR, "netxen_post_rx_buffers: " |
3d396eb1 AK |
1397 | " allocated only %d buffers\n", count); |
1398 | break; | |
1399 | } | |
ed25ffa1 AK |
1400 | |
1401 | count++; /* now there should be no failure */ | |
1402 | pdesc = &rcv_desc->desc_head[producer]; | |
1403 | ||
1404 | #if defined(XGB_DEBUG) | |
1405 | *(unsigned long *)(skb->head) = 0xc0debabe; | |
1406 | if (skb_is_nonlinear(skb)) { | |
1407 | printk("Allocated SKB @%p is nonlinear\n"); | |
1408 | } | |
1409 | #endif | |
1410 | skb_reserve(skb, 2); | |
1411 | /* This will be setup when we receive the | |
1412 | * buffer after it has been filled FSL TBD TBD | |
1413 | * skb->dev = netdev; | |
1414 | */ | |
1415 | dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size, | |
1416 | PCI_DMA_FROMDEVICE); | |
ed33ebe4 | 1417 | pdesc->addr_buffer = cpu_to_le64(dma); |
ed25ffa1 AK |
1418 | buffer->skb = skb; |
1419 | buffer->state = NETXEN_BUFFER_BUSY; | |
1420 | buffer->dma = dma; | |
1421 | /* make a rcv descriptor */ | |
ed33ebe4 AK |
1422 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
1423 | pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size); | |
ed25ffa1 AK |
1424 | DPRINTK(INFO, "done writing descripter\n"); |
1425 | producer = | |
1426 | get_next_index(producer, rcv_desc->max_rx_desc_count); | |
1427 | index = get_next_index(index, rcv_desc->max_rx_desc_count); | |
1428 | buffer = &rcv_desc->rx_buf_arr[index]; | |
1429 | } | |
1430 | /* if we did allocate buffers, then write the count to Phantom */ | |
1431 | if (count) { | |
1432 | rcv_desc->begin_alloc = index; | |
1433 | rcv_desc->rcv_pending += count; | |
ed25ffa1 AK |
1434 | rcv_desc->producer = producer; |
1435 | if (rcv_desc->rcv_free >= 32) { | |
1436 | rcv_desc->rcv_free = 0; | |
1437 | /* Window = 1 */ | |
1438 | writel((producer - 1) & | |
1439 | (rcv_desc->max_rx_desc_count - 1), | |
1440 | NETXEN_CRB_NORMALIZE(adapter, | |
3176ff3e MT |
1441 | recv_crb_registers[ |
1442 | adapter->portnum]. | |
ed25ffa1 AK |
1443 | rcv_desc_crb[ringid]. |
1444 | crb_rcv_producer_offset)); | |
1445 | /* | |
1446 | * Write a doorbell msg to tell phanmon of change in | |
1447 | * receive ring producer | |
1448 | */ | |
1449 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); | |
1450 | netxen_set_msg_privid(msg); | |
1451 | netxen_set_msg_count(msg, | |
1452 | ((producer - | |
1453 | 1) & (rcv_desc-> | |
1454 | max_rx_desc_count - 1))); | |
3176ff3e | 1455 | netxen_set_msg_ctxid(msg, adapter->portnum); |
ed25ffa1 AK |
1456 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
1457 | writel(msg, | |
1458 | DB_NORMALIZE(adapter, | |
1459 | NETXEN_RCV_PRODUCER_OFFSET)); | |
96acb6eb | 1460 | wmb(); |
ed25ffa1 AK |
1461 | } |
1462 | } | |
1463 | } | |
1464 | ||
993fb90c AB |
1465 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
1466 | uint32_t ctx, uint32_t ringid) | |
ed25ffa1 AK |
1467 | { |
1468 | struct pci_dev *pdev = adapter->ahw.pdev; | |
1469 | struct sk_buff *skb; | |
1470 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); | |
1471 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
1472 | u32 producer; | |
1473 | struct rcv_desc *pdesc; | |
1474 | struct netxen_rx_buffer *buffer; | |
1475 | int count = 0; | |
1476 | int index = 0; | |
1477 | ||
ed25ffa1 AK |
1478 | rcv_desc = &recv_ctx->rcv_desc[ringid]; |
1479 | ||
1480 | producer = rcv_desc->producer; | |
1481 | index = rcv_desc->begin_alloc; | |
1482 | buffer = &rcv_desc->rx_buf_arr[index]; | |
1483 | /* We can start writing rx descriptors into the phantom memory. */ | |
1484 | while (buffer->state == NETXEN_BUFFER_FREE) { | |
1485 | skb = dev_alloc_skb(rcv_desc->skb_size); | |
1486 | if (unlikely(!skb)) { | |
1487 | /* | |
1488 | * We need to schedule the posting of buffers to the pegs. | |
1489 | */ | |
1490 | rcv_desc->begin_alloc = index; | |
1491 | DPRINTK(ERR, "netxen_post_rx_buffers_nodb: " | |
1492 | " allocated only %d buffers\n", count); | |
1493 | break; | |
1494 | } | |
3d396eb1 AK |
1495 | count++; /* now there should be no failure */ |
1496 | pdesc = &rcv_desc->desc_head[producer]; | |
ed25ffa1 | 1497 | skb_reserve(skb, 2); |
3d396eb1 AK |
1498 | /* |
1499 | * This will be setup when we receive the | |
1500 | * buffer after it has been filled | |
1501 | * skb->dev = netdev; | |
1502 | */ | |
1503 | buffer->skb = skb; | |
1504 | buffer->state = NETXEN_BUFFER_BUSY; | |
1505 | buffer->dma = pci_map_single(pdev, skb->data, | |
1506 | rcv_desc->dma_size, | |
1507 | PCI_DMA_FROMDEVICE); | |
ed25ffa1 | 1508 | |
3d396eb1 | 1509 | /* make a rcv descriptor */ |
ed33ebe4 | 1510 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
a608ab9c | 1511 | pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size); |
3d396eb1 AK |
1512 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
1513 | DPRINTK(INFO, "done writing descripter\n"); | |
1514 | producer = | |
1515 | get_next_index(producer, rcv_desc->max_rx_desc_count); | |
1516 | index = get_next_index(index, rcv_desc->max_rx_desc_count); | |
1517 | buffer = &rcv_desc->rx_buf_arr[index]; | |
1518 | } | |
1519 | ||
1520 | /* if we did allocate buffers, then write the count to Phantom */ | |
1521 | if (count) { | |
1522 | rcv_desc->begin_alloc = index; | |
1523 | rcv_desc->rcv_pending += count; | |
3d396eb1 AK |
1524 | rcv_desc->producer = producer; |
1525 | if (rcv_desc->rcv_free >= 32) { | |
1526 | rcv_desc->rcv_free = 0; | |
1527 | /* Window = 1 */ | |
1528 | writel((producer - 1) & | |
1529 | (rcv_desc->max_rx_desc_count - 1), | |
1530 | NETXEN_CRB_NORMALIZE(adapter, | |
3176ff3e MT |
1531 | recv_crb_registers[ |
1532 | adapter->portnum]. | |
ed25ffa1 | 1533 | rcv_desc_crb[ringid]. |
3d396eb1 AK |
1534 | crb_rcv_producer_offset)); |
1535 | wmb(); | |
1536 | } | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | int netxen_nic_tx_has_work(struct netxen_adapter *adapter) | |
1541 | { | |
1542 | if (find_diff_among(adapter->last_cmd_consumer, | |
1543 | adapter->cmd_producer, | |
1544 | adapter->max_tx_desc_count) > 0) | |
1545 | return 1; | |
1546 | ||
1547 | return 0; | |
1548 | } | |
1549 | ||
3d396eb1 AK |
1550 | |
1551 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) | |
1552 | { | |
3d396eb1 | 1553 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
3176ff3e | 1554 | return; |
3d396eb1 AK |
1555 | } |
1556 |