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 | ||
45 | #define NETXEN_MAX_CRB_XFORM 60 | |
46 | static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; | |
e0e20a1a | 47 | #define NETXEN_ADDR_ERROR (0xffffffff) |
3d396eb1 AK |
48 | |
49 | #define crb_addr_transform(name) \ | |
50 | crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ | |
51 | NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 | |
52 | ||
cb8011ad AK |
53 | #define NETXEN_NIC_XDMA_RESET 0x8000ff |
54 | ||
993fb90c AB |
55 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
56 | uint32_t ctx, uint32_t ringid); | |
57 | ||
58 | #if 0 | |
59 | static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter, | |
60 | unsigned long off, int *data) | |
3d396eb1 | 61 | { |
cb8011ad | 62 | void __iomem *addr = pci_base_offset(adapter, off); |
3d396eb1 AK |
63 | writel(*data, addr); |
64 | } | |
993fb90c | 65 | #endif /* 0 */ |
3d396eb1 AK |
66 | |
67 | static void crb_addr_transform_setup(void) | |
68 | { | |
69 | crb_addr_transform(XDMA); | |
70 | crb_addr_transform(TIMR); | |
71 | crb_addr_transform(SRE); | |
72 | crb_addr_transform(SQN3); | |
73 | crb_addr_transform(SQN2); | |
74 | crb_addr_transform(SQN1); | |
75 | crb_addr_transform(SQN0); | |
76 | crb_addr_transform(SQS3); | |
77 | crb_addr_transform(SQS2); | |
78 | crb_addr_transform(SQS1); | |
79 | crb_addr_transform(SQS0); | |
80 | crb_addr_transform(RPMX7); | |
81 | crb_addr_transform(RPMX6); | |
82 | crb_addr_transform(RPMX5); | |
83 | crb_addr_transform(RPMX4); | |
84 | crb_addr_transform(RPMX3); | |
85 | crb_addr_transform(RPMX2); | |
86 | crb_addr_transform(RPMX1); | |
87 | crb_addr_transform(RPMX0); | |
88 | crb_addr_transform(ROMUSB); | |
89 | crb_addr_transform(SN); | |
90 | crb_addr_transform(QMN); | |
91 | crb_addr_transform(QMS); | |
92 | crb_addr_transform(PGNI); | |
93 | crb_addr_transform(PGND); | |
94 | crb_addr_transform(PGN3); | |
95 | crb_addr_transform(PGN2); | |
96 | crb_addr_transform(PGN1); | |
97 | crb_addr_transform(PGN0); | |
98 | crb_addr_transform(PGSI); | |
99 | crb_addr_transform(PGSD); | |
100 | crb_addr_transform(PGS3); | |
101 | crb_addr_transform(PGS2); | |
102 | crb_addr_transform(PGS1); | |
103 | crb_addr_transform(PGS0); | |
104 | crb_addr_transform(PS); | |
105 | crb_addr_transform(PH); | |
106 | crb_addr_transform(NIU); | |
107 | crb_addr_transform(I2Q); | |
108 | crb_addr_transform(EG); | |
109 | crb_addr_transform(MN); | |
110 | crb_addr_transform(MS); | |
111 | crb_addr_transform(CAS2); | |
112 | crb_addr_transform(CAS1); | |
113 | crb_addr_transform(CAS0); | |
114 | crb_addr_transform(CAM); | |
115 | crb_addr_transform(C2C1); | |
116 | crb_addr_transform(C2C0); | |
1fcca1a5 | 117 | crb_addr_transform(SMB); |
e4c93c81 DP |
118 | crb_addr_transform(OCM0); |
119 | crb_addr_transform(I2C0); | |
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 */ | |
3ce06a32 | 127 | state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); |
3d396eb1 AK |
128 | |
129 | if (state == PHAN_INITIALIZE_ACK) | |
130 | return 0; | |
131 | ||
132 | while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) { | |
2956640d | 133 | msleep(1); |
3d396eb1 | 134 | /* Window 1 call */ |
3ce06a32 | 135 | state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); |
3d396eb1 AK |
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 */ | |
3ce06a32 DP |
146 | adapter->pci_write_normalize(adapter, |
147 | CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); | |
148 | adapter->pci_write_normalize(adapter, | |
149 | CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); | |
150 | adapter->pci_write_normalize(adapter, | |
151 | CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); | |
152 | adapter->pci_write_normalize(adapter, | |
153 | CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); | |
3d396eb1 AK |
154 | |
155 | return err; | |
156 | } | |
157 | ||
2956640d | 158 | void netxen_release_rx_buffers(struct netxen_adapter *adapter) |
3d396eb1 | 159 | { |
2956640d | 160 | struct netxen_recv_context *recv_ctx; |
48bfd1e0 | 161 | struct nx_host_rds_ring *rds_ring; |
2956640d DP |
162 | struct netxen_rx_buffer *rx_buf; |
163 | int i, ctxid, ring; | |
3d396eb1 | 164 | |
3d396eb1 | 165 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
2956640d | 166 | recv_ctx = &adapter->recv_ctx[ctxid]; |
48bfd1e0 DP |
167 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
168 | rds_ring = &recv_ctx->rds_rings[ring]; | |
169 | for (i = 0; i < rds_ring->max_rx_desc_count; ++i) { | |
170 | rx_buf = &(rds_ring->rx_buf_arr[i]); | |
2956640d DP |
171 | if (rx_buf->state == NETXEN_BUFFER_FREE) |
172 | continue; | |
173 | pci_unmap_single(adapter->pdev, | |
174 | rx_buf->dma, | |
48bfd1e0 | 175 | rds_ring->dma_size, |
2956640d DP |
176 | PCI_DMA_FROMDEVICE); |
177 | if (rx_buf->skb != NULL) | |
178 | dev_kfree_skb_any(rx_buf->skb); | |
179 | } | |
180 | } | |
181 | } | |
182 | } | |
183 | ||
184 | void netxen_release_tx_buffers(struct netxen_adapter *adapter) | |
185 | { | |
186 | struct netxen_cmd_buffer *cmd_buf; | |
187 | struct netxen_skb_frag *buffrag; | |
188 | int i, j; | |
189 | ||
190 | cmd_buf = adapter->cmd_buf_arr; | |
191 | for (i = 0; i < adapter->max_tx_desc_count; i++) { | |
192 | buffrag = cmd_buf->frag_array; | |
193 | if (buffrag->dma) { | |
194 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
195 | buffrag->length, PCI_DMA_TODEVICE); | |
196 | buffrag->dma = 0ULL; | |
197 | } | |
198 | for (j = 0; j < cmd_buf->frag_count; j++) { | |
199 | buffrag++; | |
200 | if (buffrag->dma) { | |
201 | pci_unmap_page(adapter->pdev, buffrag->dma, | |
202 | buffrag->length, | |
203 | PCI_DMA_TODEVICE); | |
204 | buffrag->dma = 0ULL; | |
205 | } | |
206 | } | |
207 | /* Free the skb we received in netxen_nic_xmit_frame */ | |
208 | if (cmd_buf->skb) { | |
209 | dev_kfree_skb_any(cmd_buf->skb); | |
210 | cmd_buf->skb = NULL; | |
211 | } | |
212 | cmd_buf++; | |
213 | } | |
214 | } | |
215 | ||
216 | void netxen_free_sw_resources(struct netxen_adapter *adapter) | |
217 | { | |
218 | struct netxen_recv_context *recv_ctx; | |
48bfd1e0 | 219 | struct nx_host_rds_ring *rds_ring; |
2956640d DP |
220 | int ctx, ring; |
221 | ||
222 | for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) { | |
223 | recv_ctx = &adapter->recv_ctx[ctx]; | |
48bfd1e0 DP |
224 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
225 | rds_ring = &recv_ctx->rds_rings[ring]; | |
226 | if (rds_ring->rx_buf_arr) { | |
227 | vfree(rds_ring->rx_buf_arr); | |
228 | rds_ring->rx_buf_arr = NULL; | |
2956640d DP |
229 | } |
230 | } | |
231 | } | |
232 | if (adapter->cmd_buf_arr) | |
233 | vfree(adapter->cmd_buf_arr); | |
234 | return; | |
235 | } | |
236 | ||
237 | int netxen_alloc_sw_resources(struct netxen_adapter *adapter) | |
238 | { | |
239 | struct netxen_recv_context *recv_ctx; | |
48bfd1e0 | 240 | struct nx_host_rds_ring *rds_ring; |
2956640d DP |
241 | struct netxen_rx_buffer *rx_buf; |
242 | int ctx, ring, i, num_rx_bufs; | |
243 | ||
244 | struct netxen_cmd_buffer *cmd_buf_arr; | |
245 | struct net_device *netdev = adapter->netdev; | |
246 | ||
247 | cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); | |
248 | if (cmd_buf_arr == NULL) { | |
249 | printk(KERN_ERR "%s: Failed to allocate cmd buffer ring\n", | |
250 | netdev->name); | |
251 | return -ENOMEM; | |
252 | } | |
253 | memset(cmd_buf_arr, 0, TX_RINGSIZE); | |
254 | adapter->cmd_buf_arr = cmd_buf_arr; | |
255 | ||
256 | for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) { | |
257 | recv_ctx = &adapter->recv_ctx[ctx]; | |
48bfd1e0 DP |
258 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
259 | rds_ring = &recv_ctx->rds_rings[ring]; | |
2956640d DP |
260 | switch (RCV_DESC_TYPE(ring)) { |
261 | case RCV_DESC_NORMAL: | |
48bfd1e0 | 262 | rds_ring->max_rx_desc_count = |
2956640d | 263 | adapter->max_rx_desc_count; |
48bfd1e0 | 264 | rds_ring->flags = RCV_DESC_NORMAL; |
d9e651bc DP |
265 | if (adapter->ahw.cut_through) { |
266 | rds_ring->dma_size = | |
267 | NX_CT_DEFAULT_RX_BUF_LEN; | |
268 | rds_ring->skb_size = | |
269 | NX_CT_DEFAULT_RX_BUF_LEN; | |
270 | } else { | |
271 | rds_ring->dma_size = RX_DMA_MAP_LEN; | |
272 | rds_ring->skb_size = | |
273 | MAX_RX_BUFFER_LENGTH; | |
274 | } | |
2956640d DP |
275 | break; |
276 | ||
277 | case RCV_DESC_JUMBO: | |
48bfd1e0 | 278 | rds_ring->max_rx_desc_count = |
2956640d | 279 | adapter->max_jumbo_rx_desc_count; |
48bfd1e0 | 280 | rds_ring->flags = RCV_DESC_JUMBO; |
d9e651bc DP |
281 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
282 | rds_ring->dma_size = | |
283 | NX_P3_RX_JUMBO_BUF_MAX_LEN; | |
284 | else | |
285 | rds_ring->dma_size = | |
286 | NX_P2_RX_JUMBO_BUF_MAX_LEN; | |
48bfd1e0 | 287 | rds_ring->skb_size = |
d9e651bc | 288 | rds_ring->dma_size + NET_IP_ALIGN; |
2956640d DP |
289 | break; |
290 | ||
291 | case RCV_RING_LRO: | |
48bfd1e0 | 292 | rds_ring->max_rx_desc_count = |
2956640d | 293 | adapter->max_lro_rx_desc_count; |
48bfd1e0 DP |
294 | rds_ring->flags = RCV_DESC_LRO; |
295 | rds_ring->dma_size = RX_LRO_DMA_MAP_LEN; | |
296 | rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH; | |
2956640d DP |
297 | break; |
298 | ||
299 | } | |
48bfd1e0 | 300 | rds_ring->rx_buf_arr = (struct netxen_rx_buffer *) |
2956640d | 301 | vmalloc(RCV_BUFFSIZE); |
48bfd1e0 | 302 | if (rds_ring->rx_buf_arr == NULL) { |
2956640d DP |
303 | printk(KERN_ERR "%s: Failed to allocate " |
304 | "rx buffer ring %d\n", | |
305 | netdev->name, ring); | |
306 | /* free whatever was already allocated */ | |
307 | goto err_out; | |
308 | } | |
48bfd1e0 | 309 | memset(rds_ring->rx_buf_arr, 0, RCV_BUFFSIZE); |
d9e651bc | 310 | INIT_LIST_HEAD(&rds_ring->free_list); |
3d396eb1 AK |
311 | /* |
312 | * Now go through all of them, set reference handles | |
313 | * and put them in the queues. | |
314 | */ | |
48bfd1e0 DP |
315 | num_rx_bufs = rds_ring->max_rx_desc_count; |
316 | rx_buf = rds_ring->rx_buf_arr; | |
3d396eb1 | 317 | for (i = 0; i < num_rx_bufs; i++) { |
d9e651bc DP |
318 | list_add_tail(&rx_buf->list, |
319 | &rds_ring->free_list); | |
3d396eb1 AK |
320 | rx_buf->ref_handle = i; |
321 | rx_buf->state = NETXEN_BUFFER_FREE; | |
3d396eb1 AK |
322 | rx_buf++; |
323 | } | |
324 | } | |
325 | } | |
2956640d DP |
326 | |
327 | return 0; | |
328 | ||
329 | err_out: | |
330 | netxen_free_sw_resources(adapter); | |
331 | return -ENOMEM; | |
3d396eb1 AK |
332 | } |
333 | ||
3d396eb1 AK |
334 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) |
335 | { | |
3d396eb1 AK |
336 | switch (adapter->ahw.board_type) { |
337 | case NETXEN_NIC_GBE: | |
80922fbc | 338 | adapter->enable_phy_interrupts = |
3d396eb1 | 339 | netxen_niu_gbe_enable_phy_interrupts; |
80922fbc | 340 | adapter->disable_phy_interrupts = |
3d396eb1 | 341 | netxen_niu_gbe_disable_phy_interrupts; |
80922fbc AK |
342 | adapter->macaddr_set = netxen_niu_macaddr_set; |
343 | adapter->set_mtu = netxen_nic_set_mtu_gb; | |
344 | adapter->set_promisc = netxen_niu_set_promiscuous_mode; | |
80922fbc AK |
345 | adapter->phy_read = netxen_niu_gbe_phy_read; |
346 | adapter->phy_write = netxen_niu_gbe_phy_write; | |
c9fc891f | 347 | adapter->init_port = netxen_niu_gbe_init_port; |
80922fbc | 348 | adapter->stop_port = netxen_niu_disable_gbe_port; |
3d396eb1 AK |
349 | break; |
350 | ||
351 | case NETXEN_NIC_XGBE: | |
80922fbc | 352 | adapter->enable_phy_interrupts = |
3d396eb1 | 353 | netxen_niu_xgbe_enable_phy_interrupts; |
80922fbc | 354 | adapter->disable_phy_interrupts = |
3d396eb1 | 355 | netxen_niu_xgbe_disable_phy_interrupts; |
80922fbc AK |
356 | adapter->macaddr_set = netxen_niu_xg_macaddr_set; |
357 | adapter->set_mtu = netxen_nic_set_mtu_xgb; | |
358 | adapter->init_port = netxen_niu_xg_init_port; | |
359 | adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; | |
80922fbc | 360 | adapter->stop_port = netxen_niu_disable_xg_port; |
3d396eb1 AK |
361 | break; |
362 | ||
363 | default: | |
364 | break; | |
365 | } | |
9ad27643 DP |
366 | |
367 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
368 | adapter->set_mtu = nx_fw_cmd_set_mtu; | |
369 | adapter->set_promisc = netxen_p3_nic_set_promisc; | |
370 | } | |
3d396eb1 AK |
371 | } |
372 | ||
373 | /* | |
374 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB | |
375 | * address to external PCI CRB address. | |
376 | */ | |
993fb90c | 377 | static u32 netxen_decode_crb_addr(u32 addr) |
3d396eb1 AK |
378 | { |
379 | int i; | |
e0e20a1a | 380 | u32 base_addr, offset, pci_base; |
3d396eb1 AK |
381 | |
382 | crb_addr_transform_setup(); | |
383 | ||
384 | pci_base = NETXEN_ADDR_ERROR; | |
385 | base_addr = addr & 0xfff00000; | |
386 | offset = addr & 0x000fffff; | |
387 | ||
388 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { | |
389 | if (crb_addr_xform[i] == base_addr) { | |
390 | pci_base = i << 20; | |
391 | break; | |
392 | } | |
393 | } | |
394 | if (pci_base == NETXEN_ADDR_ERROR) | |
395 | return pci_base; | |
396 | else | |
397 | return (pci_base + offset); | |
398 | } | |
399 | ||
13ba9c77 MT |
400 | static long rom_max_timeout = 100; |
401 | static long rom_lock_timeout = 10000; | |
7830b22c | 402 | #if 0 |
27d2ab54 | 403 | static long rom_write_timeout = 700; |
7830b22c | 404 | #endif |
3d396eb1 | 405 | |
993fb90c | 406 | static int rom_lock(struct netxen_adapter *adapter) |
3d396eb1 AK |
407 | { |
408 | int iter; | |
409 | u32 done = 0; | |
410 | int timeout = 0; | |
411 | ||
412 | while (!done) { | |
413 | /* acquire semaphore2 from PCI HW block */ | |
414 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), | |
415 | &done); | |
416 | if (done == 1) | |
417 | break; | |
418 | if (timeout >= rom_lock_timeout) | |
419 | return -EIO; | |
420 | ||
421 | timeout++; | |
422 | /* | |
423 | * Yield CPU | |
424 | */ | |
425 | if (!in_atomic()) | |
426 | schedule(); | |
427 | else { | |
428 | for (iter = 0; iter < 20; iter++) | |
429 | cpu_relax(); /*This a nop instr on i386 */ | |
430 | } | |
431 | } | |
432 | netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); | |
433 | return 0; | |
434 | } | |
435 | ||
993fb90c | 436 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
3d396eb1 AK |
437 | { |
438 | long timeout = 0; | |
439 | long done = 0; | |
440 | ||
27c915a4 DP |
441 | cond_resched(); |
442 | ||
3d396eb1 AK |
443 | while (done == 0) { |
444 | done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); | |
445 | done &= 2; | |
446 | timeout++; | |
447 | if (timeout >= rom_max_timeout) { | |
448 | printk("Timeout reached waiting for rom done"); | |
449 | return -EIO; | |
450 | } | |
451 | } | |
452 | return 0; | |
453 | } | |
454 | ||
7830b22c | 455 | #if 0 |
993fb90c | 456 | static int netxen_rom_wren(struct netxen_adapter *adapter) |
cb8011ad AK |
457 | { |
458 | /* Set write enable latch in ROM status register */ | |
459 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
460 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
461 | M25P_INSTR_WREN); | |
462 | if (netxen_wait_rom_done(adapter)) { | |
463 | return -1; | |
464 | } | |
465 | return 0; | |
466 | } | |
467 | ||
993fb90c AB |
468 | static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter, |
469 | unsigned int addr) | |
cb8011ad AK |
470 | { |
471 | unsigned int data = 0xdeaddead; | |
472 | data = netxen_nic_reg_read(adapter, addr); | |
473 | return data; | |
474 | } | |
475 | ||
993fb90c | 476 | static int netxen_do_rom_rdsr(struct netxen_adapter *adapter) |
cb8011ad AK |
477 | { |
478 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
479 | M25P_INSTR_RDSR); | |
480 | if (netxen_wait_rom_done(adapter)) { | |
481 | return -1; | |
482 | } | |
483 | return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA); | |
484 | } | |
7830b22c | 485 | #endif |
cb8011ad | 486 | |
993fb90c | 487 | static void netxen_rom_unlock(struct netxen_adapter *adapter) |
cb8011ad AK |
488 | { |
489 | u32 val; | |
490 | ||
491 | /* release semaphore2 */ | |
492 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); | |
493 | ||
494 | } | |
495 | ||
7830b22c | 496 | #if 0 |
993fb90c | 497 | static int netxen_rom_wip_poll(struct netxen_adapter *adapter) |
cb8011ad AK |
498 | { |
499 | long timeout = 0; | |
500 | long wip = 1; | |
501 | int val; | |
502 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
503 | while (wip != 0) { | |
504 | val = netxen_do_rom_rdsr(adapter); | |
505 | wip = val & 1; | |
506 | timeout++; | |
507 | if (timeout > rom_max_timeout) { | |
508 | return -1; | |
509 | } | |
510 | } | |
511 | return 0; | |
512 | } | |
513 | ||
993fb90c AB |
514 | static int do_rom_fast_write(struct netxen_adapter *adapter, int addr, |
515 | int data) | |
cb8011ad AK |
516 | { |
517 | if (netxen_rom_wren(adapter)) { | |
518 | return -1; | |
519 | } | |
520 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data); | |
521 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); | |
522 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
523 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
524 | M25P_INSTR_PP); | |
525 | if (netxen_wait_rom_done(adapter)) { | |
526 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
527 | return -1; | |
528 | } | |
529 | ||
530 | return netxen_rom_wip_poll(adapter); | |
531 | } | |
7830b22c | 532 | #endif |
cb8011ad | 533 | |
993fb90c AB |
534 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
535 | int addr, int *valp) | |
3d396eb1 AK |
536 | { |
537 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); | |
3d396eb1 | 538 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
27c915a4 | 539 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
3d396eb1 AK |
540 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); |
541 | if (netxen_wait_rom_done(adapter)) { | |
542 | printk("Error waiting for rom done\n"); | |
543 | return -EIO; | |
544 | } | |
545 | /* reset abyte_cnt and dummy_byte_cnt */ | |
546 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
27c915a4 | 547 | udelay(10); |
3d396eb1 AK |
548 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
549 | ||
550 | *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); | |
551 | return 0; | |
552 | } | |
553 | ||
993fb90c AB |
554 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
555 | u8 *bytes, size_t size) | |
27d2ab54 AK |
556 | { |
557 | int addridx; | |
558 | int ret = 0; | |
559 | ||
560 | for (addridx = addr; addridx < (addr + size); addridx += 4) { | |
f305f789 AV |
561 | int v; |
562 | ret = do_rom_fast_read(adapter, addridx, &v); | |
27d2ab54 AK |
563 | if (ret != 0) |
564 | break; | |
f305f789 | 565 | *(__le32 *)bytes = cpu_to_le32(v); |
27d2ab54 AK |
566 | bytes += 4; |
567 | } | |
568 | ||
569 | return ret; | |
570 | } | |
571 | ||
572 | int | |
4790654c | 573 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
27d2ab54 AK |
574 | u8 *bytes, size_t size) |
575 | { | |
576 | int ret; | |
577 | ||
578 | ret = rom_lock(adapter); | |
579 | if (ret < 0) | |
580 | return ret; | |
581 | ||
582 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); | |
583 | ||
584 | netxen_rom_unlock(adapter); | |
585 | return ret; | |
586 | } | |
587 | ||
3d396eb1 AK |
588 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
589 | { | |
590 | int ret; | |
591 | ||
592 | if (rom_lock(adapter) != 0) | |
593 | return -EIO; | |
594 | ||
595 | ret = do_rom_fast_read(adapter, addr, valp); | |
cb8011ad AK |
596 | netxen_rom_unlock(adapter); |
597 | return ret; | |
598 | } | |
599 | ||
993fb90c | 600 | #if 0 |
cb8011ad AK |
601 | int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data) |
602 | { | |
603 | int ret = 0; | |
604 | ||
605 | if (rom_lock(adapter) != 0) { | |
606 | return -1; | |
607 | } | |
608 | ret = do_rom_fast_write(adapter, addr, data); | |
609 | netxen_rom_unlock(adapter); | |
610 | return ret; | |
611 | } | |
27d2ab54 | 612 | |
4790654c | 613 | static int do_rom_fast_write_words(struct netxen_adapter *adapter, |
993fb90c | 614 | int addr, u8 *bytes, size_t size) |
27d2ab54 AK |
615 | { |
616 | int addridx = addr; | |
617 | int ret = 0; | |
618 | ||
619 | while (addridx < (addr + size)) { | |
620 | int last_attempt = 0; | |
621 | int timeout = 0; | |
622 | int data; | |
623 | ||
f305f789 | 624 | data = le32_to_cpu((*(__le32*)bytes)); |
27d2ab54 AK |
625 | ret = do_rom_fast_write(adapter, addridx, data); |
626 | if (ret < 0) | |
627 | return ret; | |
4790654c | 628 | |
27d2ab54 AK |
629 | while(1) { |
630 | int data1; | |
631 | ||
f8dfdd5c SH |
632 | ret = do_rom_fast_read(adapter, addridx, &data1); |
633 | if (ret < 0) | |
634 | return ret; | |
635 | ||
27d2ab54 AK |
636 | if (data1 == data) |
637 | break; | |
638 | ||
639 | if (timeout++ >= rom_write_timeout) { | |
640 | if (last_attempt++ < 4) { | |
4790654c | 641 | ret = do_rom_fast_write(adapter, |
27d2ab54 AK |
642 | addridx, data); |
643 | if (ret < 0) | |
644 | return ret; | |
645 | } | |
646 | else { | |
647 | printk(KERN_INFO "Data write did not " | |
648 | "succeed at address 0x%x\n", addridx); | |
649 | break; | |
650 | } | |
651 | } | |
652 | } | |
653 | ||
654 | bytes += 4; | |
655 | addridx += 4; | |
656 | } | |
657 | ||
658 | return ret; | |
659 | } | |
660 | ||
4790654c | 661 | int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr, |
27d2ab54 AK |
662 | u8 *bytes, size_t size) |
663 | { | |
664 | int ret = 0; | |
665 | ||
666 | ret = rom_lock(adapter); | |
667 | if (ret < 0) | |
668 | return ret; | |
669 | ||
670 | ret = do_rom_fast_write_words(adapter, addr, bytes, size); | |
671 | netxen_rom_unlock(adapter); | |
672 | ||
673 | return ret; | |
674 | } | |
675 | ||
993fb90c | 676 | static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data) |
27d2ab54 AK |
677 | { |
678 | int ret; | |
679 | ||
680 | ret = netxen_rom_wren(adapter); | |
681 | if (ret < 0) | |
682 | return ret; | |
683 | ||
684 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data); | |
4790654c | 685 | netxen_crb_writelit_adapter(adapter, |
27d2ab54 AK |
686 | NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1); |
687 | ||
688 | ret = netxen_wait_rom_done(adapter); | |
689 | if (ret < 0) | |
690 | return ret; | |
691 | ||
692 | return netxen_rom_wip_poll(adapter); | |
693 | } | |
694 | ||
993fb90c | 695 | static int netxen_rom_rdsr(struct netxen_adapter *adapter) |
27d2ab54 AK |
696 | { |
697 | int ret; | |
698 | ||
699 | ret = rom_lock(adapter); | |
700 | if (ret < 0) | |
701 | return ret; | |
702 | ||
703 | ret = netxen_do_rom_rdsr(adapter); | |
704 | netxen_rom_unlock(adapter); | |
705 | return ret; | |
706 | } | |
707 | ||
708 | int netxen_backup_crbinit(struct netxen_adapter *adapter) | |
709 | { | |
710 | int ret = FLASH_SUCCESS; | |
711 | int val; | |
0d04761d | 712 | char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL); |
27d2ab54 AK |
713 | |
714 | if (!buffer) | |
4790654c | 715 | return -ENOMEM; |
27d2ab54 AK |
716 | /* unlock sector 63 */ |
717 | val = netxen_rom_rdsr(adapter); | |
718 | val = val & 0xe3; | |
719 | ret = netxen_rom_wrsr(adapter, val); | |
720 | if (ret != FLASH_SUCCESS) | |
721 | goto out_kfree; | |
722 | ||
723 | ret = netxen_rom_wip_poll(adapter); | |
724 | if (ret != FLASH_SUCCESS) | |
725 | goto out_kfree; | |
726 | ||
727 | /* copy sector 0 to sector 63 */ | |
4790654c | 728 | ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START, |
0d04761d | 729 | buffer, NETXEN_FLASH_SECTOR_SIZE); |
27d2ab54 AK |
730 | if (ret != FLASH_SUCCESS) |
731 | goto out_kfree; | |
732 | ||
4790654c | 733 | ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START, |
0d04761d | 734 | buffer, NETXEN_FLASH_SECTOR_SIZE); |
27d2ab54 AK |
735 | if (ret != FLASH_SUCCESS) |
736 | goto out_kfree; | |
737 | ||
738 | /* lock sector 63 */ | |
739 | val = netxen_rom_rdsr(adapter); | |
740 | if (!(val & 0x8)) { | |
741 | val |= (0x1 << 2); | |
742 | /* lock sector 63 */ | |
743 | if (netxen_rom_wrsr(adapter, val) == 0) { | |
744 | ret = netxen_rom_wip_poll(adapter); | |
745 | if (ret != FLASH_SUCCESS) | |
746 | goto out_kfree; | |
747 | ||
748 | /* lock SR writes */ | |
749 | ret = netxen_rom_wip_poll(adapter); | |
750 | if (ret != FLASH_SUCCESS) | |
751 | goto out_kfree; | |
752 | } | |
753 | } | |
754 | ||
755 | out_kfree: | |
756 | kfree(buffer); | |
757 | return ret; | |
758 | } | |
759 | ||
993fb90c | 760 | static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr) |
cb8011ad AK |
761 | { |
762 | netxen_rom_wren(adapter); | |
763 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); | |
764 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
765 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, | |
766 | M25P_INSTR_SE); | |
767 | if (netxen_wait_rom_done(adapter)) { | |
768 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); | |
769 | return -1; | |
770 | } | |
771 | return netxen_rom_wip_poll(adapter); | |
772 | } | |
773 | ||
993fb90c | 774 | static void check_erased_flash(struct netxen_adapter *adapter, int addr) |
27d2ab54 AK |
775 | { |
776 | int i; | |
777 | int val; | |
778 | int count = 0, erased_errors = 0; | |
779 | int range; | |
780 | ||
4790654c | 781 | range = (addr == NETXEN_USER_START) ? |
0d04761d | 782 | NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE; |
4790654c | 783 | |
27d2ab54 AK |
784 | for (i = addr; i < range; i += 4) { |
785 | netxen_rom_fast_read(adapter, i, &val); | |
786 | if (val != 0xffffffff) | |
787 | erased_errors++; | |
788 | count++; | |
789 | } | |
790 | ||
791 | if (erased_errors) | |
792 | printk(KERN_INFO "0x%x out of 0x%x words fail to be erased " | |
793 | "for sector address: %x\n", erased_errors, count, addr); | |
794 | } | |
795 | ||
cb8011ad AK |
796 | int netxen_rom_se(struct netxen_adapter *adapter, int addr) |
797 | { | |
798 | int ret = 0; | |
799 | if (rom_lock(adapter) != 0) { | |
800 | return -1; | |
801 | } | |
802 | ret = netxen_do_rom_se(adapter, addr); | |
803 | netxen_rom_unlock(adapter); | |
27d2ab54 AK |
804 | msleep(30); |
805 | check_erased_flash(adapter, addr); | |
806 | ||
807 | return ret; | |
808 | } | |
809 | ||
993fb90c AB |
810 | static int netxen_flash_erase_sections(struct netxen_adapter *adapter, |
811 | int start, int end) | |
27d2ab54 AK |
812 | { |
813 | int ret = FLASH_SUCCESS; | |
814 | int i; | |
815 | ||
816 | for (i = start; i < end; i++) { | |
0d04761d | 817 | ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE); |
27d2ab54 AK |
818 | if (ret) |
819 | break; | |
820 | ret = netxen_rom_wip_poll(adapter); | |
821 | if (ret < 0) | |
822 | return ret; | |
823 | } | |
824 | ||
825 | return ret; | |
826 | } | |
827 | ||
828 | int | |
829 | netxen_flash_erase_secondary(struct netxen_adapter *adapter) | |
830 | { | |
831 | int ret = FLASH_SUCCESS; | |
832 | int start, end; | |
833 | ||
0d04761d MT |
834 | start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; |
835 | end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE; | |
27d2ab54 AK |
836 | ret = netxen_flash_erase_sections(adapter, start, end); |
837 | ||
838 | return ret; | |
839 | } | |
840 | ||
841 | int | |
842 | netxen_flash_erase_primary(struct netxen_adapter *adapter) | |
843 | { | |
844 | int ret = FLASH_SUCCESS; | |
845 | int start, end; | |
846 | ||
0d04761d MT |
847 | start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE; |
848 | end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; | |
27d2ab54 AK |
849 | ret = netxen_flash_erase_sections(adapter, start, end); |
850 | ||
851 | return ret; | |
852 | } | |
853 | ||
e45d9ab4 AK |
854 | void netxen_halt_pegs(struct netxen_adapter *adapter) |
855 | { | |
856 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1); | |
857 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1); | |
858 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1); | |
859 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1); | |
860 | } | |
861 | ||
27d2ab54 AK |
862 | int netxen_flash_unlock(struct netxen_adapter *adapter) |
863 | { | |
864 | int ret = 0; | |
865 | ||
866 | ret = netxen_rom_wrsr(adapter, 0); | |
867 | if (ret < 0) | |
868 | return ret; | |
869 | ||
870 | ret = netxen_rom_wren(adapter); | |
871 | if (ret < 0) | |
872 | return ret; | |
873 | ||
3d396eb1 AK |
874 | return ret; |
875 | } | |
7830b22c | 876 | #endif /* 0 */ |
3d396eb1 AK |
877 | |
878 | #define NETXEN_BOARDTYPE 0x4008 | |
879 | #define NETXEN_BOARDNUM 0x400c | |
880 | #define NETXEN_CHIPNUM 0x4010 | |
3d396eb1 AK |
881 | |
882 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) | |
883 | { | |
dcd56fdb | 884 | int addr, val; |
27c915a4 | 885 | int i, n, init_delay = 0; |
3d396eb1 | 886 | struct crb_addr_pair *buf; |
27c915a4 | 887 | unsigned offset; |
e0e20a1a | 888 | u32 off; |
3d396eb1 AK |
889 | |
890 | /* resetall */ | |
27c915a4 | 891 | rom_lock(adapter); |
3d396eb1 | 892 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, |
2956640d | 893 | 0xffffffff); |
27c915a4 | 894 | netxen_rom_unlock(adapter); |
3d396eb1 AK |
895 | |
896 | if (verbose) { | |
3d396eb1 AK |
897 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) |
898 | printk("P2 ROM board type: 0x%08x\n", val); | |
899 | else | |
900 | printk("Could not read board type\n"); | |
901 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) | |
902 | printk("P2 ROM board num: 0x%08x\n", val); | |
903 | else | |
904 | printk("Could not read board number\n"); | |
905 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) | |
906 | printk("P2 ROM chip num: 0x%08x\n", val); | |
907 | else | |
908 | printk("Could not read chip number\n"); | |
909 | } | |
910 | ||
2956640d DP |
911 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
912 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || | |
27c915a4 | 913 | (n != 0xcafecafe) || |
2956640d DP |
914 | netxen_rom_fast_read(adapter, 4, &n) != 0) { |
915 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " | |
916 | "n: %08x\n", netxen_nic_driver_name, n); | |
3d396eb1 AK |
917 | return -EIO; |
918 | } | |
2956640d DP |
919 | offset = n & 0xffffU; |
920 | n = (n >> 16) & 0xffffU; | |
921 | } else { | |
922 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || | |
923 | !(n & 0x80000000)) { | |
924 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " | |
925 | "n: %08x\n", netxen_nic_driver_name, n); | |
926 | return -EIO; | |
3d396eb1 | 927 | } |
2956640d DP |
928 | offset = 1; |
929 | n &= ~0x80000000; | |
930 | } | |
931 | ||
932 | if (n < 1024) { | |
933 | if (verbose) | |
934 | printk(KERN_DEBUG "%s: %d CRB init values found" | |
935 | " in ROM.\n", netxen_nic_driver_name, n); | |
936 | } else { | |
937 | printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not" | |
938 | " initialized.\n", __func__, n); | |
939 | return -EIO; | |
940 | } | |
3d396eb1 | 941 | |
2956640d DP |
942 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
943 | if (buf == NULL) { | |
944 | printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n", | |
945 | netxen_nic_driver_name); | |
946 | return -ENOMEM; | |
947 | } | |
948 | for (i = 0; i < n; i++) { | |
949 | if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || | |
950 | netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) | |
951 | return -EIO; | |
952 | ||
953 | buf[i].addr = addr; | |
954 | buf[i].data = val; | |
955 | ||
956 | if (verbose) | |
957 | printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n", | |
958 | netxen_nic_driver_name, | |
959 | (u32)netxen_decode_crb_addr(addr), val); | |
960 | } | |
961 | for (i = 0; i < n; i++) { | |
962 | ||
963 | off = netxen_decode_crb_addr(buf[i].addr); | |
964 | if (off == NETXEN_ADDR_ERROR) { | |
965 | printk(KERN_ERR"CRB init value out of range %x\n", | |
1fcca1a5 | 966 | buf[i].addr); |
2956640d DP |
967 | continue; |
968 | } | |
969 | off += NETXEN_PCI_CRBSPACE; | |
970 | /* skipping cold reboot MAGIC */ | |
971 | if (off == NETXEN_CAM_RAM(0x1fc)) | |
972 | continue; | |
973 | ||
974 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
975 | /* do not reset PCI */ | |
976 | if (off == (ROMUSB_GLB + 0xbc)) | |
1fcca1a5 | 977 | continue; |
27c915a4 DP |
978 | if (off == (ROMUSB_GLB + 0xa8)) |
979 | continue; | |
980 | if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ | |
981 | continue; | |
982 | if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ | |
983 | continue; | |
984 | if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ | |
985 | continue; | |
2956640d DP |
986 | if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) |
987 | buf[i].data = 0x1020; | |
988 | /* skip the function enable register */ | |
989 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION)) | |
3d396eb1 | 990 | continue; |
2956640d DP |
991 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2)) |
992 | continue; | |
993 | if ((off & 0x0ff00000) == NETXEN_CRB_SMB) | |
994 | continue; | |
995 | } | |
3d396eb1 | 996 | |
2956640d DP |
997 | if (off == NETXEN_ADDR_ERROR) { |
998 | printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n", | |
999 | netxen_nic_driver_name, buf[i].addr); | |
1000 | continue; | |
1001 | } | |
1002 | ||
27c915a4 | 1003 | init_delay = 1; |
2956640d DP |
1004 | /* After writing this register, HW needs time for CRB */ |
1005 | /* to quiet down (else crb_window returns 0xffffffff) */ | |
1006 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { | |
27c915a4 | 1007 | init_delay = 1000; |
2956640d | 1008 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
3d396eb1 | 1009 | /* hold xdma in reset also */ |
cb8011ad | 1010 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
27c915a4 | 1011 | buf[i].data = 0x8000ff; |
3d396eb1 | 1012 | } |
2956640d | 1013 | } |
3d396eb1 | 1014 | |
2956640d | 1015 | adapter->hw_write_wx(adapter, off, &buf[i].data, 4); |
3d396eb1 | 1016 | |
27c915a4 | 1017 | msleep(init_delay); |
2956640d DP |
1018 | } |
1019 | kfree(buf); | |
3d396eb1 | 1020 | |
2956640d | 1021 | /* disable_peg_cache_all */ |
3d396eb1 | 1022 | |
2956640d DP |
1023 | /* unreset_net_cache */ |
1024 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
1025 | adapter->hw_read_wx(adapter, | |
1026 | NETXEN_ROMUSB_GLB_SW_RESET, &val, 4); | |
3d396eb1 | 1027 | netxen_crb_writelit_adapter(adapter, |
2956640d | 1028 | NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); |
3d396eb1 | 1029 | } |
2956640d DP |
1030 | |
1031 | /* p2dn replyCount */ | |
1032 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); | |
1033 | /* disable_peg_cache 0 */ | |
1034 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); | |
1035 | /* disable_peg_cache 1 */ | |
1036 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); | |
1037 | ||
1038 | /* peg_clr_all */ | |
1039 | ||
1040 | /* peg_clr 0 */ | |
1041 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); | |
1042 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); | |
1043 | /* peg_clr 1 */ | |
1044 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); | |
1045 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); | |
1046 | /* peg_clr 2 */ | |
1047 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); | |
1048 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); | |
1049 | /* peg_clr 3 */ | |
1050 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); | |
1051 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0); | |
3d396eb1 AK |
1052 | return 0; |
1053 | } | |
1054 | ||
ed25ffa1 AK |
1055 | int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) |
1056 | { | |
1057 | uint64_t addr; | |
1058 | uint32_t hi; | |
1059 | uint32_t lo; | |
1060 | ||
1061 | adapter->dummy_dma.addr = | |
7830b22c | 1062 | pci_alloc_consistent(adapter->pdev, |
ed25ffa1 AK |
1063 | NETXEN_HOST_DUMMY_DMA_SIZE, |
1064 | &adapter->dummy_dma.phys_addr); | |
1065 | if (adapter->dummy_dma.addr == NULL) { | |
1066 | printk("%s: ERROR: Could not allocate dummy DMA memory\n", | |
2956640d | 1067 | __func__); |
ed25ffa1 AK |
1068 | return -ENOMEM; |
1069 | } | |
1070 | ||
1071 | addr = (uint64_t) adapter->dummy_dma.phys_addr; | |
1072 | hi = (addr >> 32) & 0xffffffff; | |
1073 | lo = addr & 0xffffffff; | |
1074 | ||
3ce06a32 DP |
1075 | adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); |
1076 | adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo); | |
ed25ffa1 | 1077 | |
2956640d DP |
1078 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1079 | uint32_t temp = 0; | |
1080 | adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4); | |
1081 | } | |
1082 | ||
ed25ffa1 AK |
1083 | return 0; |
1084 | } | |
1085 | ||
1086 | void netxen_free_adapter_offload(struct netxen_adapter *adapter) | |
1087 | { | |
15eef1e1 DP |
1088 | int i = 100; |
1089 | ||
1090 | if (!adapter->dummy_dma.addr) | |
1091 | return; | |
439b454e | 1092 | |
15eef1e1 | 1093 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
439b454e DP |
1094 | do { |
1095 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
1096 | break; | |
1097 | msleep(50); | |
1098 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) | |
1099 | break; | |
1100 | } while (--i); | |
15eef1e1 | 1101 | } |
439b454e | 1102 | |
15eef1e1 DP |
1103 | if (i) { |
1104 | pci_free_consistent(adapter->pdev, | |
1105 | NETXEN_HOST_DUMMY_DMA_SIZE, | |
1106 | adapter->dummy_dma.addr, | |
1107 | adapter->dummy_dma.phys_addr); | |
1108 | adapter->dummy_dma.addr = NULL; | |
1109 | } else { | |
1110 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", | |
1111 | adapter->netdev->name); | |
ed25ffa1 AK |
1112 | } |
1113 | } | |
1114 | ||
96acb6eb | 1115 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
3d396eb1 AK |
1116 | { |
1117 | u32 val = 0; | |
2956640d | 1118 | int retries = 60; |
3d396eb1 | 1119 | |
cb8011ad | 1120 | if (!pegtune_val) { |
96acb6eb | 1121 | do { |
3ce06a32 DP |
1122 | val = adapter->pci_read_normalize(adapter, |
1123 | CRB_CMDPEG_STATE); | |
96acb6eb DP |
1124 | |
1125 | if (val == PHAN_INITIALIZE_COMPLETE || | |
1126 | val == PHAN_INITIALIZE_ACK) | |
1127 | return 0; | |
1128 | ||
2956640d DP |
1129 | msleep(500); |
1130 | ||
96acb6eb | 1131 | } while (--retries); |
2956640d | 1132 | |
96acb6eb | 1133 | if (!retries) { |
2956640d DP |
1134 | pegtune_val = adapter->pci_read_normalize(adapter, |
1135 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE); | |
96acb6eb DP |
1136 | printk(KERN_WARNING "netxen_phantom_init: init failed, " |
1137 | "pegtune_val=%x\n", pegtune_val); | |
1138 | return -1; | |
3d396eb1 | 1139 | } |
3d396eb1 | 1140 | } |
96acb6eb DP |
1141 | |
1142 | return 0; | |
3d396eb1 AK |
1143 | } |
1144 | ||
2956640d DP |
1145 | int netxen_receive_peg_ready(struct netxen_adapter *adapter) |
1146 | { | |
1147 | u32 val = 0; | |
1148 | int retries = 2000; | |
1149 | ||
1150 | do { | |
1151 | val = adapter->pci_read_normalize(adapter, CRB_RCVPEG_STATE); | |
1152 | ||
1153 | if (val == PHAN_PEG_RCV_INITIALIZED) | |
1154 | return 0; | |
1155 | ||
1156 | msleep(10); | |
1157 | ||
1158 | } while (--retries); | |
1159 | ||
1160 | if (!retries) { | |
1161 | printk(KERN_ERR "Receive Peg initialization not " | |
1162 | "complete, state: 0x%x.\n", val); | |
1163 | return -EIO; | |
1164 | } | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
d9e651bc DP |
1169 | static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter, |
1170 | struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum) | |
1171 | { | |
1172 | struct netxen_rx_buffer *buffer; | |
1173 | struct sk_buff *skb; | |
1174 | ||
1175 | buffer = &rds_ring->rx_buf_arr[index]; | |
1176 | ||
1177 | pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, | |
1178 | PCI_DMA_FROMDEVICE); | |
1179 | ||
1180 | skb = buffer->skb; | |
1181 | if (!skb) | |
1182 | goto no_skb; | |
1183 | ||
1184 | if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { | |
1185 | adapter->stats.csummed++; | |
1186 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1187 | } else | |
1188 | skb->ip_summed = CHECKSUM_NONE; | |
1189 | ||
1190 | skb->dev = adapter->netdev; | |
1191 | ||
1192 | buffer->skb = NULL; | |
1193 | ||
1194 | no_skb: | |
1195 | buffer->state = NETXEN_BUFFER_FREE; | |
1196 | buffer->lro_current_frags = 0; | |
1197 | buffer->lro_expected_frags = 0; | |
1198 | list_add_tail(&buffer->list, &rds_ring->free_list); | |
1199 | return skb; | |
1200 | } | |
1201 | ||
3d396eb1 AK |
1202 | /* |
1203 | * netxen_process_rcv() send the received packet to the protocol stack. | |
1204 | * and if the number of receives exceeds RX_BUFFERS_REFILL, then we | |
1205 | * invoke the routine to send more rx buffers to the Phantom... | |
1206 | */ | |
993fb90c | 1207 | static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, |
d9e651bc | 1208 | struct status_desc *desc, struct status_desc *frag_desc) |
3d396eb1 | 1209 | { |
3176ff3e | 1210 | struct net_device *netdev = adapter->netdev; |
5dc16268 DP |
1211 | u64 sts_data = le64_to_cpu(desc->status_desc_data); |
1212 | int index = netxen_get_sts_refhandle(sts_data); | |
3d396eb1 AK |
1213 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); |
1214 | struct netxen_rx_buffer *buffer; | |
1215 | struct sk_buff *skb; | |
5dc16268 | 1216 | u32 length = netxen_get_sts_totallength(sts_data); |
3d396eb1 | 1217 | u32 desc_ctx; |
d9e651bc | 1218 | u16 pkt_offset = 0, cksum; |
48bfd1e0 | 1219 | struct nx_host_rds_ring *rds_ring; |
3d396eb1 | 1220 | |
5dc16268 | 1221 | desc_ctx = netxen_get_sts_type(sts_data); |
3d396eb1 AK |
1222 | if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) { |
1223 | printk("%s: %s Bad Rcv descriptor ring\n", | |
1224 | netxen_nic_driver_name, netdev->name); | |
1225 | return; | |
1226 | } | |
1227 | ||
48bfd1e0 DP |
1228 | rds_ring = &recv_ctx->rds_rings[desc_ctx]; |
1229 | if (unlikely(index > rds_ring->max_rx_desc_count)) { | |
ed25ffa1 | 1230 | DPRINTK(ERR, "Got a buffer index:%x Max is %x\n", |
48bfd1e0 | 1231 | index, rds_ring->max_rx_desc_count); |
ed25ffa1 AK |
1232 | return; |
1233 | } | |
48bfd1e0 | 1234 | buffer = &rds_ring->rx_buf_arr[index]; |
ed25ffa1 AK |
1235 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
1236 | buffer->lro_current_frags++; | |
1237 | if (netxen_get_sts_desc_lro_last_frag(desc)) { | |
1238 | buffer->lro_expected_frags = | |
1239 | netxen_get_sts_desc_lro_cnt(desc); | |
1240 | buffer->lro_length = length; | |
1241 | } | |
1242 | if (buffer->lro_current_frags != buffer->lro_expected_frags) { | |
1243 | if (buffer->lro_expected_frags != 0) { | |
5bc51424 JP |
1244 | printk("LRO: (refhandle:%x) recv frag. " |
1245 | "wait for last. flags: %x expected:%d " | |
ed25ffa1 AK |
1246 | "have:%d\n", index, |
1247 | netxen_get_sts_desc_lro_last_frag(desc), | |
1248 | buffer->lro_expected_frags, | |
1249 | buffer->lro_current_frags); | |
1250 | } | |
1251 | return; | |
1252 | } | |
1253 | } | |
3d396eb1 | 1254 | |
d9e651bc | 1255 | cksum = netxen_get_sts_status(sts_data); |
3d396eb1 | 1256 | |
d9e651bc DP |
1257 | skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); |
1258 | if (!skb) | |
1259 | return; | |
200eef20 | 1260 | |
ed25ffa1 AK |
1261 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
1262 | /* True length was only available on the last pkt */ | |
1263 | skb_put(skb, buffer->lro_length); | |
1264 | } else { | |
d9e651bc DP |
1265 | if (length > rds_ring->skb_size) |
1266 | skb_put(skb, rds_ring->skb_size); | |
1267 | else | |
1268 | skb_put(skb, length); | |
1269 | ||
1270 | pkt_offset = netxen_get_sts_pkt_offset(sts_data); | |
1271 | if (pkt_offset) | |
1272 | skb_pull(skb, pkt_offset); | |
ed25ffa1 AK |
1273 | } |
1274 | ||
3d396eb1 AK |
1275 | skb->protocol = eth_type_trans(skb, netdev); |
1276 | ||
3d396eb1 | 1277 | /* |
d9e651bc DP |
1278 | * rx buffer chaining is disabled, walk and free |
1279 | * any spurious rx buffer chain. | |
3d396eb1 | 1280 | */ |
d9e651bc DP |
1281 | if (frag_desc) { |
1282 | u16 i, nr_frags = desc->nr_frags; | |
1283 | ||
1284 | dev_kfree_skb_any(skb); | |
1285 | for (i = 0; i < nr_frags; i++) { | |
2edbb454 | 1286 | index = le16_to_cpu(frag_desc->frag_handles[i]); |
d9e651bc DP |
1287 | skb = netxen_process_rxbuf(adapter, |
1288 | rds_ring, index, cksum); | |
1289 | if (skb) | |
1290 | dev_kfree_skb_any(skb); | |
1291 | } | |
1292 | adapter->stats.rxdropped++; | |
1293 | } else { | |
d9e651bc | 1294 | netif_receive_skb(skb); |
d9e651bc DP |
1295 | |
1296 | adapter->stats.no_rcv++; | |
1297 | adapter->stats.rxbytes += length; | |
1298 | } | |
3d396eb1 AK |
1299 | } |
1300 | ||
1301 | /* Process Receive status ring */ | |
1302 | u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max) | |
1303 | { | |
1304 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); | |
1305 | struct status_desc *desc_head = recv_ctx->rcv_status_desc_head; | |
d9e651bc | 1306 | struct status_desc *desc, *frag_desc; |
3d396eb1 AK |
1307 | u32 consumer = recv_ctx->status_rx_consumer; |
1308 | int count = 0, ring; | |
d9e651bc DP |
1309 | u64 sts_data; |
1310 | u16 opcode; | |
3d396eb1 | 1311 | |
3d396eb1 AK |
1312 | while (count < max) { |
1313 | desc = &desc_head[consumer]; | |
a608ab9c | 1314 | if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) { |
ed25ffa1 AK |
1315 | DPRINTK(ERR, "desc %p ownedby %x\n", desc, |
1316 | netxen_get_sts_owner(desc)); | |
3d396eb1 AK |
1317 | break; |
1318 | } | |
d9e651bc DP |
1319 | |
1320 | sts_data = le64_to_cpu(desc->status_desc_data); | |
1321 | opcode = netxen_get_sts_opcode(sts_data); | |
1322 | frag_desc = NULL; | |
1323 | if (opcode == NETXEN_NIC_RXPKT_DESC) { | |
1324 | if (desc->nr_frags) { | |
1325 | consumer = get_next_index(consumer, | |
1326 | adapter->max_rx_desc_count); | |
1327 | frag_desc = &desc_head[consumer]; | |
1328 | netxen_set_sts_owner(frag_desc, | |
1329 | STATUS_OWNER_PHANTOM); | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | netxen_process_rcv(adapter, ctxid, desc, frag_desc); | |
1334 | ||
a608ab9c | 1335 | netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM); |
d9e651bc DP |
1336 | |
1337 | consumer = get_next_index(consumer, | |
1338 | adapter->max_rx_desc_count); | |
3d396eb1 AK |
1339 | count++; |
1340 | } | |
48bfd1e0 | 1341 | for (ring = 0; ring < adapter->max_rds_rings; ring++) |
05aaa02d | 1342 | netxen_post_rx_buffers_nodb(adapter, ctxid, ring); |
3d396eb1 AK |
1343 | |
1344 | /* update the consumer index in phantom */ | |
1345 | if (count) { | |
3d396eb1 AK |
1346 | recv_ctx->status_rx_consumer = consumer; |
1347 | ||
1348 | /* Window = 1 */ | |
3ce06a32 DP |
1349 | adapter->pci_write_normalize(adapter, |
1350 | recv_ctx->crb_sts_consumer, consumer); | |
3d396eb1 AK |
1351 | } |
1352 | ||
1353 | return count; | |
1354 | } | |
1355 | ||
1356 | /* Process Command status ring */ | |
05aaa02d | 1357 | int netxen_process_cmd_ring(struct netxen_adapter *adapter) |
3d396eb1 | 1358 | { |
ba53e6b4 DP |
1359 | u32 last_consumer, consumer; |
1360 | int count = 0, i; | |
3d396eb1 | 1361 | struct netxen_cmd_buffer *buffer; |
ba53e6b4 DP |
1362 | struct pci_dev *pdev = adapter->pdev; |
1363 | struct net_device *netdev = adapter->netdev; | |
3d396eb1 | 1364 | struct netxen_skb_frag *frag; |
ba53e6b4 | 1365 | int done = 0; |
3d396eb1 | 1366 | |
3d396eb1 | 1367 | last_consumer = adapter->last_cmd_consumer; |
9b410117 | 1368 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
3d396eb1 | 1369 | |
ba53e6b4 | 1370 | while (last_consumer != consumer) { |
3d396eb1 | 1371 | buffer = &adapter->cmd_buf_arr[last_consumer]; |
53a01e00 | 1372 | if (buffer->skb) { |
1373 | frag = &buffer->frag_array[0]; | |
3d396eb1 AK |
1374 | pci_unmap_single(pdev, frag->dma, frag->length, |
1375 | PCI_DMA_TODEVICE); | |
96acb6eb | 1376 | frag->dma = 0ULL; |
3d396eb1 | 1377 | for (i = 1; i < buffer->frag_count; i++) { |
3d396eb1 AK |
1378 | frag++; /* Get the next frag */ |
1379 | pci_unmap_page(pdev, frag->dma, frag->length, | |
1380 | PCI_DMA_TODEVICE); | |
96acb6eb | 1381 | frag->dma = 0ULL; |
3d396eb1 AK |
1382 | } |
1383 | ||
ba53e6b4 | 1384 | adapter->stats.xmitfinished++; |
53a01e00 | 1385 | dev_kfree_skb_any(buffer->skb); |
1386 | buffer->skb = NULL; | |
3d396eb1 AK |
1387 | } |
1388 | ||
1389 | last_consumer = get_next_index(last_consumer, | |
1390 | adapter->max_tx_desc_count); | |
ba53e6b4 DP |
1391 | if (++count >= MAX_STATUS_HANDLE) |
1392 | break; | |
3d396eb1 | 1393 | } |
3d396eb1 | 1394 | |
ba53e6b4 | 1395 | if (count) { |
3d396eb1 | 1396 | adapter->last_cmd_consumer = last_consumer; |
ba53e6b4 DP |
1397 | smp_mb(); |
1398 | if (netif_queue_stopped(netdev) && netif_running(netdev)) { | |
1399 | netif_tx_lock(netdev); | |
1400 | netif_wake_queue(netdev); | |
1401 | smp_mb(); | |
1402 | netif_tx_unlock(netdev); | |
3d396eb1 AK |
1403 | } |
1404 | } | |
ed25ffa1 AK |
1405 | /* |
1406 | * If everything is freed up to consumer then check if the ring is full | |
1407 | * If the ring is full then check if more needs to be freed and | |
1408 | * schedule the call back again. | |
1409 | * | |
1410 | * This happens when there are 2 CPUs. One could be freeing and the | |
1411 | * other filling it. If the ring is full when we get out of here and | |
1412 | * the card has already interrupted the host then the host can miss the | |
1413 | * interrupt. | |
1414 | * | |
1415 | * There is still a possible race condition and the host could miss an | |
1416 | * interrupt. The card has to take care of this. | |
1417 | */ | |
ba53e6b4 DP |
1418 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
1419 | done = (last_consumer == consumer); | |
3d396eb1 | 1420 | |
ed25ffa1 | 1421 | return (done); |
3d396eb1 AK |
1422 | } |
1423 | ||
1424 | /* | |
1425 | * netxen_post_rx_buffers puts buffer in the Phantom memory | |
1426 | */ | |
1427 | void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) | |
1428 | { | |
7830b22c | 1429 | struct pci_dev *pdev = adapter->pdev; |
3d396eb1 AK |
1430 | struct sk_buff *skb; |
1431 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); | |
48bfd1e0 | 1432 | struct nx_host_rds_ring *rds_ring = NULL; |
ed25ffa1 | 1433 | uint producer; |
3d396eb1 AK |
1434 | struct rcv_desc *pdesc; |
1435 | struct netxen_rx_buffer *buffer; | |
1436 | int count = 0; | |
ed25ffa1 AK |
1437 | netxen_ctx_msg msg = 0; |
1438 | dma_addr_t dma; | |
d9e651bc | 1439 | struct list_head *head; |
3d396eb1 | 1440 | |
48bfd1e0 | 1441 | rds_ring = &recv_ctx->rds_rings[ringid]; |
3d396eb1 | 1442 | |
48bfd1e0 | 1443 | producer = rds_ring->producer; |
d9e651bc DP |
1444 | head = &rds_ring->free_list; |
1445 | ||
3d396eb1 | 1446 | /* We can start writing rx descriptors into the phantom memory. */ |
d9e651bc DP |
1447 | while (!list_empty(head)) { |
1448 | ||
48bfd1e0 | 1449 | skb = dev_alloc_skb(rds_ring->skb_size); |
3d396eb1 | 1450 | if (unlikely(!skb)) { |
3d396eb1 AK |
1451 | break; |
1452 | } | |
ed25ffa1 | 1453 | |
6f703406 DP |
1454 | if (!adapter->ahw.cut_through) |
1455 | skb_reserve(skb, 2); | |
1456 | ||
1457 | dma = pci_map_single(pdev, skb->data, | |
1458 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); | |
1459 | if (pci_dma_mapping_error(pdev, dma)) { | |
1460 | dev_kfree_skb_any(skb); | |
1461 | break; | |
1462 | } | |
1463 | ||
1464 | count++; | |
d9e651bc DP |
1465 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
1466 | list_del(&buffer->list); | |
1467 | ||
ed25ffa1 AK |
1468 | buffer->skb = skb; |
1469 | buffer->state = NETXEN_BUFFER_BUSY; | |
1470 | buffer->dma = dma; | |
6f703406 | 1471 | |
ed25ffa1 | 1472 | /* make a rcv descriptor */ |
6f703406 DP |
1473 | pdesc = &rds_ring->desc_head[producer]; |
1474 | pdesc->addr_buffer = cpu_to_le64(dma); | |
ed33ebe4 | 1475 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
48bfd1e0 | 1476 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
6f703406 DP |
1477 | |
1478 | producer = get_next_index(producer, rds_ring->max_rx_desc_count); | |
ed25ffa1 AK |
1479 | } |
1480 | /* if we did allocate buffers, then write the count to Phantom */ | |
1481 | if (count) { | |
48bfd1e0 | 1482 | rds_ring->producer = producer; |
ed25ffa1 | 1483 | /* Window = 1 */ |
3ce06a32 | 1484 | adapter->pci_write_normalize(adapter, |
48bfd1e0 DP |
1485 | rds_ring->crb_rcv_producer, |
1486 | (producer-1) & (rds_ring->max_rx_desc_count-1)); | |
1487 | ||
1488 | if (adapter->fw_major < 4) { | |
ed25ffa1 AK |
1489 | /* |
1490 | * Write a doorbell msg to tell phanmon of change in | |
1491 | * receive ring producer | |
48bfd1e0 | 1492 | * Only for firmware version < 4.0.0 |
ed25ffa1 AK |
1493 | */ |
1494 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); | |
1495 | netxen_set_msg_privid(msg); | |
1496 | netxen_set_msg_count(msg, | |
1497 | ((producer - | |
48bfd1e0 | 1498 | 1) & (rds_ring-> |
ed25ffa1 | 1499 | max_rx_desc_count - 1))); |
3176ff3e | 1500 | netxen_set_msg_ctxid(msg, adapter->portnum); |
ed25ffa1 AK |
1501 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
1502 | writel(msg, | |
1503 | DB_NORMALIZE(adapter, | |
1504 | NETXEN_RCV_PRODUCER_OFFSET)); | |
48bfd1e0 | 1505 | } |
ed25ffa1 AK |
1506 | } |
1507 | } | |
1508 | ||
993fb90c AB |
1509 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
1510 | uint32_t ctx, uint32_t ringid) | |
ed25ffa1 | 1511 | { |
7830b22c | 1512 | struct pci_dev *pdev = adapter->pdev; |
ed25ffa1 AK |
1513 | struct sk_buff *skb; |
1514 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); | |
48bfd1e0 | 1515 | struct nx_host_rds_ring *rds_ring = NULL; |
ed25ffa1 AK |
1516 | u32 producer; |
1517 | struct rcv_desc *pdesc; | |
1518 | struct netxen_rx_buffer *buffer; | |
1519 | int count = 0; | |
d9e651bc | 1520 | struct list_head *head; |
6f703406 | 1521 | dma_addr_t dma; |
ed25ffa1 | 1522 | |
48bfd1e0 | 1523 | rds_ring = &recv_ctx->rds_rings[ringid]; |
ed25ffa1 | 1524 | |
48bfd1e0 | 1525 | producer = rds_ring->producer; |
d9e651bc | 1526 | head = &rds_ring->free_list; |
ed25ffa1 | 1527 | /* We can start writing rx descriptors into the phantom memory. */ |
d9e651bc DP |
1528 | while (!list_empty(head)) { |
1529 | ||
48bfd1e0 | 1530 | skb = dev_alloc_skb(rds_ring->skb_size); |
ed25ffa1 | 1531 | if (unlikely(!skb)) { |
ed25ffa1 AK |
1532 | break; |
1533 | } | |
d9e651bc | 1534 | |
6f703406 DP |
1535 | if (!adapter->ahw.cut_through) |
1536 | skb_reserve(skb, 2); | |
1537 | ||
1538 | dma = pci_map_single(pdev, skb->data, | |
1539 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); | |
1540 | if (pci_dma_mapping_error(pdev, dma)) { | |
1541 | dev_kfree_skb_any(skb); | |
1542 | break; | |
1543 | } | |
1544 | ||
1545 | count++; | |
d9e651bc DP |
1546 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
1547 | list_del(&buffer->list); | |
1548 | ||
3d396eb1 AK |
1549 | buffer->skb = skb; |
1550 | buffer->state = NETXEN_BUFFER_BUSY; | |
6f703406 | 1551 | buffer->dma = dma; |
ed25ffa1 | 1552 | |
3d396eb1 | 1553 | /* make a rcv descriptor */ |
6f703406 | 1554 | pdesc = &rds_ring->desc_head[producer]; |
ed33ebe4 | 1555 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
48bfd1e0 | 1556 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
3d396eb1 | 1557 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
6f703406 DP |
1558 | |
1559 | producer = get_next_index(producer, rds_ring->max_rx_desc_count); | |
3d396eb1 AK |
1560 | } |
1561 | ||
1562 | /* if we did allocate buffers, then write the count to Phantom */ | |
1563 | if (count) { | |
48bfd1e0 | 1564 | rds_ring->producer = producer; |
3d396eb1 | 1565 | /* Window = 1 */ |
3ce06a32 | 1566 | adapter->pci_write_normalize(adapter, |
48bfd1e0 DP |
1567 | rds_ring->crb_rcv_producer, |
1568 | (producer-1) & (rds_ring->max_rx_desc_count-1)); | |
3d396eb1 | 1569 | wmb(); |
3d396eb1 AK |
1570 | } |
1571 | } | |
1572 | ||
3d396eb1 AK |
1573 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) |
1574 | { | |
3d396eb1 | 1575 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
3176ff3e | 1576 | return; |
3d396eb1 AK |
1577 | } |
1578 |