2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 * The full GNU General Public License is included in this distribution
22 * in the file called "COPYING".
26 #include <linux/netdevice.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include "netxen_nic.h"
30 #include "netxen_nic_hw.h"
32 struct crb_addr_pair {
37 #define NETXEN_MAX_CRB_XFORM 60
38 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
39 #define NETXEN_ADDR_ERROR (0xffffffff)
41 #define crb_addr_transform(name) \
42 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
43 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
45 #define NETXEN_NIC_XDMA_RESET 0x8000ff
48 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
49 struct nx_host_rds_ring *rds_ring);
50 static int netxen_p3_has_mn(struct netxen_adapter *adapter);
52 static void crb_addr_transform_setup(void)
54 crb_addr_transform(XDMA);
55 crb_addr_transform(TIMR);
56 crb_addr_transform(SRE);
57 crb_addr_transform(SQN3);
58 crb_addr_transform(SQN2);
59 crb_addr_transform(SQN1);
60 crb_addr_transform(SQN0);
61 crb_addr_transform(SQS3);
62 crb_addr_transform(SQS2);
63 crb_addr_transform(SQS1);
64 crb_addr_transform(SQS0);
65 crb_addr_transform(RPMX7);
66 crb_addr_transform(RPMX6);
67 crb_addr_transform(RPMX5);
68 crb_addr_transform(RPMX4);
69 crb_addr_transform(RPMX3);
70 crb_addr_transform(RPMX2);
71 crb_addr_transform(RPMX1);
72 crb_addr_transform(RPMX0);
73 crb_addr_transform(ROMUSB);
74 crb_addr_transform(SN);
75 crb_addr_transform(QMN);
76 crb_addr_transform(QMS);
77 crb_addr_transform(PGNI);
78 crb_addr_transform(PGND);
79 crb_addr_transform(PGN3);
80 crb_addr_transform(PGN2);
81 crb_addr_transform(PGN1);
82 crb_addr_transform(PGN0);
83 crb_addr_transform(PGSI);
84 crb_addr_transform(PGSD);
85 crb_addr_transform(PGS3);
86 crb_addr_transform(PGS2);
87 crb_addr_transform(PGS1);
88 crb_addr_transform(PGS0);
89 crb_addr_transform(PS);
90 crb_addr_transform(PH);
91 crb_addr_transform(NIU);
92 crb_addr_transform(I2Q);
93 crb_addr_transform(EG);
94 crb_addr_transform(MN);
95 crb_addr_transform(MS);
96 crb_addr_transform(CAS2);
97 crb_addr_transform(CAS1);
98 crb_addr_transform(CAS0);
99 crb_addr_transform(CAM);
100 crb_addr_transform(C2C1);
101 crb_addr_transform(C2C0);
102 crb_addr_transform(SMB);
103 crb_addr_transform(OCM0);
104 crb_addr_transform(I2C0);
107 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
109 struct netxen_recv_context *recv_ctx;
110 struct nx_host_rds_ring *rds_ring;
111 struct netxen_rx_buffer *rx_buf;
114 recv_ctx = &adapter->recv_ctx;
115 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
116 rds_ring = &recv_ctx->rds_rings[ring];
117 for (i = 0; i < rds_ring->num_desc; ++i) {
118 rx_buf = &(rds_ring->rx_buf_arr[i]);
119 if (rx_buf->state == NETXEN_BUFFER_FREE)
121 pci_unmap_single(adapter->pdev,
125 if (rx_buf->skb != NULL)
126 dev_kfree_skb_any(rx_buf->skb);
131 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
133 struct netxen_cmd_buffer *cmd_buf;
134 struct netxen_skb_frag *buffrag;
136 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
138 cmd_buf = tx_ring->cmd_buf_arr;
139 for (i = 0; i < tx_ring->num_desc; i++) {
140 buffrag = cmd_buf->frag_array;
142 pci_unmap_single(adapter->pdev, buffrag->dma,
143 buffrag->length, PCI_DMA_TODEVICE);
146 for (j = 0; j < cmd_buf->frag_count; j++) {
149 pci_unmap_page(adapter->pdev, buffrag->dma,
156 dev_kfree_skb_any(cmd_buf->skb);
163 void netxen_free_sw_resources(struct netxen_adapter *adapter)
165 struct netxen_recv_context *recv_ctx;
166 struct nx_host_rds_ring *rds_ring;
167 struct nx_host_tx_ring *tx_ring;
170 recv_ctx = &adapter->recv_ctx;
172 if (recv_ctx->rds_rings == NULL)
175 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
176 rds_ring = &recv_ctx->rds_rings[ring];
177 vfree(rds_ring->rx_buf_arr);
178 rds_ring->rx_buf_arr = NULL;
180 kfree(recv_ctx->rds_rings);
183 if (adapter->tx_ring == NULL)
186 tx_ring = adapter->tx_ring;
187 vfree(tx_ring->cmd_buf_arr);
189 adapter->tx_ring = NULL;
192 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
194 struct netxen_recv_context *recv_ctx;
195 struct nx_host_rds_ring *rds_ring;
196 struct nx_host_sds_ring *sds_ring;
197 struct nx_host_tx_ring *tx_ring;
198 struct netxen_rx_buffer *rx_buf;
201 struct netxen_cmd_buffer *cmd_buf_arr;
202 struct net_device *netdev = adapter->netdev;
203 struct pci_dev *pdev = adapter->pdev;
205 size = sizeof(struct nx_host_tx_ring);
206 tx_ring = kzalloc(size, GFP_KERNEL);
207 if (tx_ring == NULL) {
208 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
212 adapter->tx_ring = tx_ring;
214 tx_ring->num_desc = adapter->num_txd;
215 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
217 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
218 if (cmd_buf_arr == NULL) {
219 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
223 tx_ring->cmd_buf_arr = cmd_buf_arr;
225 recv_ctx = &adapter->recv_ctx;
227 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
228 rds_ring = kzalloc(size, GFP_KERNEL);
229 if (rds_ring == NULL) {
230 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
234 recv_ctx->rds_rings = rds_ring;
236 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
237 rds_ring = &recv_ctx->rds_rings[ring];
239 case RCV_RING_NORMAL:
240 rds_ring->num_desc = adapter->num_rxd;
241 if (adapter->ahw.cut_through) {
243 NX_CT_DEFAULT_RX_BUF_LEN;
245 NX_CT_DEFAULT_RX_BUF_LEN;
247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
249 NX_P3_RX_BUF_MAX_LEN;
252 NX_P2_RX_BUF_MAX_LEN;
254 rds_ring->dma_size + NET_IP_ALIGN;
259 rds_ring->num_desc = adapter->num_jumbo_rxd;
260 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
262 NX_P3_RX_JUMBO_BUF_MAX_LEN;
265 NX_P2_RX_JUMBO_BUF_MAX_LEN;
267 if (adapter->capabilities & NX_CAP0_HW_LRO)
268 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
271 rds_ring->dma_size + NET_IP_ALIGN;
275 rds_ring->num_desc = adapter->num_lro_rxd;
276 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
277 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
281 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
282 if (rds_ring->rx_buf_arr == NULL) {
283 printk(KERN_ERR "%s: Failed to allocate "
284 "rx buffer ring %d\n",
286 /* free whatever was already allocated */
289 INIT_LIST_HEAD(&rds_ring->free_list);
291 * Now go through all of them, set reference handles
292 * and put them in the queues.
294 rx_buf = rds_ring->rx_buf_arr;
295 for (i = 0; i < rds_ring->num_desc; i++) {
296 list_add_tail(&rx_buf->list,
297 &rds_ring->free_list);
298 rx_buf->ref_handle = i;
299 rx_buf->state = NETXEN_BUFFER_FREE;
302 spin_lock_init(&rds_ring->lock);
305 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
306 sds_ring = &recv_ctx->sds_rings[ring];
307 sds_ring->irq = adapter->msix_entries[ring].vector;
308 sds_ring->adapter = adapter;
309 sds_ring->num_desc = adapter->num_rxd;
311 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
312 INIT_LIST_HEAD(&sds_ring->free_list[i]);
318 netxen_free_sw_resources(adapter);
323 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
324 * address to external PCI CRB address.
326 static u32 netxen_decode_crb_addr(u32 addr)
329 u32 base_addr, offset, pci_base;
331 crb_addr_transform_setup();
333 pci_base = NETXEN_ADDR_ERROR;
334 base_addr = addr & 0xfff00000;
335 offset = addr & 0x000fffff;
337 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
338 if (crb_addr_xform[i] == base_addr) {
343 if (pci_base == NETXEN_ADDR_ERROR)
346 return pci_base + offset;
349 #define NETXEN_MAX_ROM_WAIT_USEC 100
351 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
359 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
361 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
362 dev_err(&adapter->pdev->dev,
363 "Timeout reached waiting for rom done");
371 static int do_rom_fast_read(struct netxen_adapter *adapter,
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
377 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
378 if (netxen_wait_rom_done(adapter)) {
379 printk("Error waiting for rom done\n");
382 /* reset abyte_cnt and dummy_byte_cnt */
383 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
385 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
387 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
391 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
392 u8 *bytes, size_t size)
397 for (addridx = addr; addridx < (addr + size); addridx += 4) {
399 ret = do_rom_fast_read(adapter, addridx, &v);
402 *(__le32 *)bytes = cpu_to_le32(v);
410 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
411 u8 *bytes, size_t size)
415 ret = netxen_rom_lock(adapter);
419 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
421 netxen_rom_unlock(adapter);
425 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
429 if (netxen_rom_lock(adapter) != 0)
432 ret = do_rom_fast_read(adapter, addr, valp);
433 netxen_rom_unlock(adapter);
437 #define NETXEN_BOARDTYPE 0x4008
438 #define NETXEN_BOARDNUM 0x400c
439 #define NETXEN_CHIPNUM 0x4010
441 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
444 int i, n, init_delay = 0;
445 struct crb_addr_pair *buf;
450 netxen_rom_lock(adapter);
451 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
452 netxen_rom_unlock(adapter);
454 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
455 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
457 netxen_rom_fast_read(adapter, 4, &n) != 0) {
458 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
459 "n: %08x\n", netxen_nic_driver_name, n);
462 offset = n & 0xffffU;
463 n = (n >> 16) & 0xffffU;
465 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
467 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
468 "n: %08x\n", netxen_nic_driver_name, n);
476 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
477 " initialized.\n", __func__, n);
481 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
483 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
484 netxen_nic_driver_name);
488 for (i = 0; i < n; i++) {
489 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
490 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
500 for (i = 0; i < n; i++) {
502 off = netxen_decode_crb_addr(buf[i].addr);
503 if (off == NETXEN_ADDR_ERROR) {
504 printk(KERN_ERR"CRB init value out of range %x\n",
508 off += NETXEN_PCI_CRBSPACE;
513 /* skipping cold reboot MAGIC */
514 if (off == NETXEN_CAM_RAM(0x1fc))
517 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
518 if (off == (NETXEN_CRB_I2C0 + 0x1c))
520 /* do not reset PCI */
521 if (off == (ROMUSB_GLB + 0xbc))
523 if (off == (ROMUSB_GLB + 0xa8))
525 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
527 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
529 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
531 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
533 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
534 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
535 buf[i].data = 0x1020;
536 /* skip the function enable register */
537 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
539 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
541 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
546 /* After writing this register, HW needs time for CRB */
547 /* to quiet down (else crb_window returns 0xffffffff) */
548 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
550 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
551 /* hold xdma in reset also */
552 buf[i].data = NETXEN_NIC_XDMA_RESET;
553 buf[i].data = 0x8000ff;
557 NXWR32(adapter, off, buf[i].data);
563 /* disable_peg_cache_all */
565 /* unreset_net_cache */
566 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
567 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
568 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
571 /* p2dn replyCount */
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
573 /* disable_peg_cache 0 */
574 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
575 /* disable_peg_cache 1 */
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
581 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
582 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
584 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
585 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
587 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
588 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
590 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
591 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
595 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
598 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
599 __le32 entries = cpu_to_le32(directory->num_entries);
601 for (i = 0; i < entries; i++) {
603 __le32 offs = cpu_to_le32(directory->findex) +
604 (i * cpu_to_le32(directory->entry_size));
605 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
607 if (tab_type == section)
608 return (struct uni_table_desc *) &unirom[offs];
614 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
617 netxen_nic_validate_header(struct netxen_adapter *adapter)
619 const u8 *unirom = adapter->fw->data;
620 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
621 u32 fw_file_size = adapter->fw->size;
626 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
629 entries = cpu_to_le32(directory->num_entries);
630 entry_size = cpu_to_le32(directory->entry_size);
631 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
633 if (fw_file_size < tab_size)
640 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
642 struct uni_table_desc *tab_desc;
643 struct uni_data_desc *descr;
644 const u8 *unirom = adapter->fw->data;
645 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
646 NX_UNI_BOOTLD_IDX_OFF));
651 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
656 tab_size = cpu_to_le32(tab_desc->findex) +
657 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
659 if (adapter->fw->size < tab_size)
662 offs = cpu_to_le32(tab_desc->findex) +
663 (cpu_to_le32(tab_desc->entry_size) * (idx));
664 descr = (struct uni_data_desc *)&unirom[offs];
666 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
668 if (adapter->fw->size < data_size)
675 netxen_nic_validate_fw(struct netxen_adapter *adapter)
677 struct uni_table_desc *tab_desc;
678 struct uni_data_desc *descr;
679 const u8 *unirom = adapter->fw->data;
680 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
681 NX_UNI_FIRMWARE_IDX_OFF));
686 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
691 tab_size = cpu_to_le32(tab_desc->findex) +
692 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
694 if (adapter->fw->size < tab_size)
697 offs = cpu_to_le32(tab_desc->findex) +
698 (cpu_to_le32(tab_desc->entry_size) * (idx));
699 descr = (struct uni_data_desc *)&unirom[offs];
700 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
702 if (adapter->fw->size < data_size)
710 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
712 struct uni_table_desc *ptab_descr;
713 const u8 *unirom = adapter->fw->data;
714 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
715 1 : netxen_p3_has_mn(adapter);
721 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
722 if (ptab_descr == NULL)
725 entries = cpu_to_le32(ptab_descr->num_entries);
726 entry_size = cpu_to_le32(ptab_descr->entry_size);
727 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
729 if (adapter->fw->size < tab_size)
733 for (i = 0; i < entries; i++) {
735 __le32 flags, file_chiprev, offs;
736 u8 chiprev = adapter->ahw.revision_id;
739 offs = cpu_to_le32(ptab_descr->findex) +
740 (i * cpu_to_le32(ptab_descr->entry_size));
741 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
742 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
743 NX_UNI_CHIP_REV_OFF));
745 flagbit = mn_present ? 1 : 2;
747 if ((chiprev == file_chiprev) &&
748 ((1ULL << flagbit) & flags)) {
749 adapter->file_prd_off = offs;
754 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
763 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
765 if (netxen_nic_validate_header(adapter)) {
766 dev_err(&adapter->pdev->dev,
767 "unified image: header validation failed\n");
771 if (netxen_nic_validate_product_offs(adapter)) {
772 dev_err(&adapter->pdev->dev,
773 "unified image: product validation failed\n");
777 if (netxen_nic_validate_bootld(adapter)) {
778 dev_err(&adapter->pdev->dev,
779 "unified image: bootld validation failed\n");
783 if (netxen_nic_validate_fw(adapter)) {
784 dev_err(&adapter->pdev->dev,
785 "unified image: firmware validation failed\n");
792 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
793 u32 section, u32 idx_offset)
795 const u8 *unirom = adapter->fw->data;
796 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
798 struct uni_table_desc *tab_desc;
801 tab_desc = nx_get_table_desc(unirom, section);
803 if (tab_desc == NULL)
806 offs = cpu_to_le32(tab_desc->findex) +
807 (cpu_to_le32(tab_desc->entry_size) * idx);
809 return (struct uni_data_desc *)&unirom[offs];
813 nx_get_bootld_offs(struct netxen_adapter *adapter)
815 u32 offs = NETXEN_BOOTLD_START;
817 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
818 offs = cpu_to_le32((nx_get_data_desc(adapter,
819 NX_UNI_DIR_SECT_BOOTLD,
820 NX_UNI_BOOTLD_IDX_OFF))->findex);
822 return (u8 *)&adapter->fw->data[offs];
826 nx_get_fw_offs(struct netxen_adapter *adapter)
828 u32 offs = NETXEN_IMAGE_START;
830 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
831 offs = cpu_to_le32((nx_get_data_desc(adapter,
833 NX_UNI_FIRMWARE_IDX_OFF))->findex);
835 return (u8 *)&adapter->fw->data[offs];
839 nx_get_fw_size(struct netxen_adapter *adapter)
841 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
842 return cpu_to_le32((nx_get_data_desc(adapter,
844 NX_UNI_FIRMWARE_IDX_OFF))->size);
847 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
851 nx_get_fw_version(struct netxen_adapter *adapter)
853 struct uni_data_desc *fw_data_desc;
854 const struct firmware *fw = adapter->fw;
855 __le32 major, minor, sub;
859 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
861 fw_data_desc = nx_get_data_desc(adapter,
862 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
863 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
864 cpu_to_le32(fw_data_desc->size) - 17;
866 for (i = 0; i < 12; i++) {
867 if (!strncmp(&ver_str[i], "REV=", 4)) {
868 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
869 &major, &minor, &sub);
877 return major + (minor << 8) + (sub << 16);
880 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
884 nx_get_bios_version(struct netxen_adapter *adapter)
886 const struct firmware *fw = adapter->fw;
887 __le32 bios_ver, prd_off = adapter->file_prd_off;
889 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
890 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
891 + NX_UNI_BIOS_VERSION_OFF));
892 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
895 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
900 netxen_need_fw_reset(struct netxen_adapter *adapter)
902 u32 count, old_count;
903 u32 val, version, major, minor, build;
907 /* NX2031 firmware doesn't support heartbit */
908 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
911 if (adapter->need_fw_reset)
914 /* last attempt had failed */
915 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
918 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
920 for (i = 0; i < 10; i++) {
922 timeout = msleep_interruptible(200);
924 NXWR32(adapter, CRB_CMDPEG_STATE,
925 PHAN_INITIALIZE_FAILED);
929 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
930 if (count != old_count)
934 /* firmware is dead */
935 if (count == old_count)
938 /* check if we have got newer or different file firmware */
941 val = nx_get_fw_version(adapter);
943 version = NETXEN_DECODE_VERSION(val);
945 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
946 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
947 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
949 if (version > NETXEN_VERSION_CODE(major, minor, build))
952 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
953 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
955 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
956 fw_type = (val & 0x4) ?
957 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
959 if (adapter->fw_type != fw_type)
967 static char *fw_name[] = {
968 NX_P2_MN_ROMIMAGE_NAME,
969 NX_P3_CT_ROMIMAGE_NAME,
970 NX_P3_MN_ROMIMAGE_NAME,
971 NX_UNIFIED_ROMIMAGE_NAME,
972 NX_FLASH_ROMIMAGE_NAME,
976 netxen_load_firmware(struct netxen_adapter *adapter)
979 u32 i, flashaddr, size;
980 const struct firmware *fw = adapter->fw;
981 struct pci_dev *pdev = adapter->pdev;
983 dev_info(&pdev->dev, "loading firmware from %s\n",
984 fw_name[adapter->fw_type]);
986 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
987 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
992 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
994 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
995 flashaddr = NETXEN_BOOTLD_START;
997 for (i = 0; i < size; i++) {
998 data = cpu_to_le64(ptr64[i]);
1000 if (adapter->pci_mem_write(adapter, flashaddr, data))
1006 size = (__force u32)nx_get_fw_size(adapter) / 8;
1008 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1009 flashaddr = NETXEN_IMAGE_START;
1011 for (i = 0; i < size; i++) {
1012 data = cpu_to_le64(ptr64[i]);
1014 if (adapter->pci_mem_write(adapter,
1021 size = (__force u32)nx_get_fw_size(adapter) % 8;
1023 data = cpu_to_le64(ptr64[i]);
1025 if (adapter->pci_mem_write(adapter,
1034 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1035 flashaddr = NETXEN_BOOTLD_START;
1037 for (i = 0; i < size; i++) {
1038 if (netxen_rom_fast_read(adapter,
1039 flashaddr, (int *)&lo) != 0)
1041 if (netxen_rom_fast_read(adapter,
1042 flashaddr + 4, (int *)&hi) != 0)
1045 /* hi, lo are already in host endian byteorder */
1046 data = (((u64)hi << 32) | lo);
1048 if (adapter->pci_mem_write(adapter,
1057 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1058 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1059 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1060 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1061 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1063 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1064 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1071 netxen_validate_firmware(struct netxen_adapter *adapter)
1074 u32 ver, min_ver, bios;
1075 struct pci_dev *pdev = adapter->pdev;
1076 const struct firmware *fw = adapter->fw;
1077 u8 fw_type = adapter->fw_type;
1079 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1080 if (netxen_nic_validate_unified_romimage(adapter))
1083 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1084 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1087 if (fw->size < NX_FW_MIN_SIZE)
1091 val = nx_get_fw_version(adapter);
1093 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1094 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
1096 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1098 ver = NETXEN_DECODE_VERSION(val);
1100 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
1102 "%s: firmware version %d.%d.%d unsupported\n",
1103 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1107 val = nx_get_bios_version(adapter);
1108 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
1109 if ((__force u32)val != bios) {
1110 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1115 /* check if flashed firmware is newer */
1116 if (netxen_rom_fast_read(adapter,
1117 NX_FW_VERSION_OFFSET, (int *)&val))
1119 val = NETXEN_DECODE_VERSION(val);
1121 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1126 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1131 nx_get_next_fwtype(struct netxen_adapter *adapter)
1135 switch (adapter->fw_type) {
1136 case NX_UNKNOWN_ROMIMAGE:
1137 fw_type = NX_UNIFIED_ROMIMAGE;
1140 case NX_UNIFIED_ROMIMAGE:
1141 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1142 fw_type = NX_FLASH_ROMIMAGE;
1143 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1144 fw_type = NX_P2_MN_ROMIMAGE;
1145 else if (netxen_p3_has_mn(adapter))
1146 fw_type = NX_P3_MN_ROMIMAGE;
1148 fw_type = NX_P3_CT_ROMIMAGE;
1151 case NX_P3_MN_ROMIMAGE:
1152 fw_type = NX_P3_CT_ROMIMAGE;
1155 case NX_P2_MN_ROMIMAGE:
1156 case NX_P3_CT_ROMIMAGE:
1158 fw_type = NX_FLASH_ROMIMAGE;
1162 adapter->fw_type = fw_type;
1166 netxen_p3_has_mn(struct netxen_adapter *adapter)
1168 u32 capability, flashed_ver;
1171 /* NX2031 always had MN */
1172 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1175 netxen_rom_fast_read(adapter,
1176 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1177 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1179 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1181 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1182 if (capability & NX_PEG_TUNE_MN_PRESENT)
1188 void netxen_request_firmware(struct netxen_adapter *adapter)
1190 struct pci_dev *pdev = adapter->pdev;
1193 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1196 nx_get_next_fwtype(adapter);
1198 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1201 rc = request_firmware(&adapter->fw,
1202 fw_name[adapter->fw_type], &pdev->dev);
1206 rc = netxen_validate_firmware(adapter);
1208 release_firmware(adapter->fw);
1217 netxen_release_firmware(struct netxen_adapter *adapter)
1220 release_firmware(adapter->fw);
1224 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1229 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1232 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1233 NETXEN_HOST_DUMMY_DMA_SIZE,
1234 &adapter->dummy_dma.phys_addr);
1235 if (adapter->dummy_dma.addr == NULL) {
1236 dev_err(&adapter->pdev->dev,
1237 "ERROR: Could not allocate dummy DMA memory\n");
1241 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1242 hi = (addr >> 32) & 0xffffffff;
1243 lo = addr & 0xffffffff;
1245 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1246 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1252 * NetXen DMA watchdog control:
1254 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1255 * Bit 1 : disable_request => 1 req disable dma watchdog
1256 * Bit 2 : enable_request => 1 req enable dma watchdog
1259 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1264 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1267 if (!adapter->dummy_dma.addr)
1270 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1271 if ((ctrl & 0x1) != 0) {
1272 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1274 while ((ctrl & 0x1) != 0) {
1278 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1286 pci_free_consistent(adapter->pdev,
1287 NETXEN_HOST_DUMMY_DMA_SIZE,
1288 adapter->dummy_dma.addr,
1289 adapter->dummy_dma.phys_addr);
1290 adapter->dummy_dma.addr = NULL;
1292 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1295 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1304 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1307 case PHAN_INITIALIZE_COMPLETE:
1308 case PHAN_INITIALIZE_ACK:
1310 case PHAN_INITIALIZE_FAILED:
1318 } while (--retries);
1320 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1323 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1328 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1334 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1336 if (val == PHAN_PEG_RCV_INITIALIZED)
1341 } while (--retries);
1344 printk(KERN_ERR "Receive Peg initialization not "
1345 "complete, state: 0x%x.\n", val);
1352 int netxen_init_firmware(struct netxen_adapter *adapter)
1356 err = netxen_receive_peg_ready(adapter);
1360 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1361 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1362 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1364 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1365 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1371 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1376 u8 link_status, module, duplex, autoneg;
1377 struct net_device *netdev = adapter->netdev;
1379 adapter->has_link_events = 1;
1381 cable_OUI = msg->body[1] & 0xffffffff;
1382 cable_len = (msg->body[1] >> 32) & 0xffff;
1383 link_speed = (msg->body[1] >> 48) & 0xffff;
1385 link_status = msg->body[2] & 0xff;
1386 duplex = (msg->body[2] >> 16) & 0xff;
1387 autoneg = (msg->body[2] >> 24) & 0xff;
1389 module = (msg->body[2] >> 8) & 0xff;
1390 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1391 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1392 netdev->name, cable_OUI, cable_len);
1393 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1394 printk(KERN_INFO "%s: unsupported cable length %d\n",
1395 netdev->name, cable_len);
1398 netxen_advert_link_change(adapter, link_status);
1400 /* update link parameters */
1401 if (duplex == LINKEVENT_FULL_DUPLEX)
1402 adapter->link_duplex = DUPLEX_FULL;
1404 adapter->link_duplex = DUPLEX_HALF;
1405 adapter->module_type = module;
1406 adapter->link_autoneg = autoneg;
1407 adapter->link_speed = link_speed;
1411 netxen_handle_fw_message(int desc_cnt, int index,
1412 struct nx_host_sds_ring *sds_ring)
1415 struct status_desc *desc;
1418 while (desc_cnt > 0 && i < 8) {
1419 desc = &sds_ring->desc_head[index];
1420 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1421 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1423 index = get_next_index(index, sds_ring->num_desc);
1427 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1429 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1430 netxen_handle_linkevent(sds_ring->adapter, &msg);
1438 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1439 struct nx_host_rds_ring *rds_ring,
1440 struct netxen_rx_buffer *buffer)
1442 struct sk_buff *skb;
1444 struct pci_dev *pdev = adapter->pdev;
1446 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1452 if (!adapter->ahw.cut_through)
1453 skb_reserve(skb, 2);
1455 dma = pci_map_single(pdev, skb->data,
1456 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1458 if (pci_dma_mapping_error(pdev, dma)) {
1459 dev_kfree_skb_any(skb);
1466 buffer->state = NETXEN_BUFFER_BUSY;
1471 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1472 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1474 struct netxen_rx_buffer *buffer;
1475 struct sk_buff *skb;
1477 buffer = &rds_ring->rx_buf_arr[index];
1479 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1480 PCI_DMA_FROMDEVICE);
1486 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1487 adapter->stats.csummed++;
1488 skb->ip_summed = CHECKSUM_UNNECESSARY;
1490 skb->ip_summed = CHECKSUM_NONE;
1492 skb->dev = adapter->netdev;
1496 buffer->state = NETXEN_BUFFER_FREE;
1500 static struct netxen_rx_buffer *
1501 netxen_process_rcv(struct netxen_adapter *adapter,
1502 struct nx_host_sds_ring *sds_ring,
1503 int ring, u64 sts_data0)
1505 struct net_device *netdev = adapter->netdev;
1506 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1507 struct netxen_rx_buffer *buffer;
1508 struct sk_buff *skb;
1509 struct nx_host_rds_ring *rds_ring;
1510 int index, length, cksum, pkt_offset;
1512 if (unlikely(ring >= adapter->max_rds_rings))
1515 rds_ring = &recv_ctx->rds_rings[ring];
1517 index = netxen_get_sts_refhandle(sts_data0);
1518 if (unlikely(index >= rds_ring->num_desc))
1521 buffer = &rds_ring->rx_buf_arr[index];
1523 length = netxen_get_sts_totallength(sts_data0);
1524 cksum = netxen_get_sts_status(sts_data0);
1525 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1527 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1531 if (length > rds_ring->skb_size)
1532 skb_put(skb, rds_ring->skb_size);
1534 skb_put(skb, length);
1538 skb_pull(skb, pkt_offset);
1540 skb->protocol = eth_type_trans(skb, netdev);
1542 napi_gro_receive(&sds_ring->napi, skb);
1544 adapter->stats.rx_pkts++;
1545 adapter->stats.rxbytes += length;
1550 #define TCP_HDR_SIZE 20
1551 #define TCP_TS_OPTION_SIZE 12
1552 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1554 static struct netxen_rx_buffer *
1555 netxen_process_lro(struct netxen_adapter *adapter,
1556 struct nx_host_sds_ring *sds_ring,
1557 int ring, u64 sts_data0, u64 sts_data1)
1559 struct net_device *netdev = adapter->netdev;
1560 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1561 struct netxen_rx_buffer *buffer;
1562 struct sk_buff *skb;
1563 struct nx_host_rds_ring *rds_ring;
1566 bool push, timestamp;
1567 int l2_hdr_offset, l4_hdr_offset;
1569 u16 lro_length, length, data_offset;
1572 if (unlikely(ring > adapter->max_rds_rings))
1575 rds_ring = &recv_ctx->rds_rings[ring];
1577 index = netxen_get_lro_sts_refhandle(sts_data0);
1578 if (unlikely(index > rds_ring->num_desc))
1581 buffer = &rds_ring->rx_buf_arr[index];
1583 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1584 lro_length = netxen_get_lro_sts_length(sts_data0);
1585 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1586 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1587 push = netxen_get_lro_sts_push_flag(sts_data0);
1588 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1590 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1595 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1597 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1599 skb_put(skb, lro_length + data_offset);
1601 skb_pull(skb, l2_hdr_offset);
1602 skb->protocol = eth_type_trans(skb, netdev);
1604 iph = (struct iphdr *)skb->data;
1605 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1607 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1608 iph->tot_len = htons(length);
1610 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1612 th->seq = htonl(seq_number);
1616 netif_receive_skb(skb);
1618 adapter->stats.lro_pkts++;
1619 adapter->stats.rxbytes += length;
1624 #define netxen_merge_rx_buffers(list, head) \
1625 do { list_splice_tail_init(list, head); } while (0);
1628 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1630 struct netxen_adapter *adapter = sds_ring->adapter;
1632 struct list_head *cur;
1634 struct status_desc *desc;
1635 struct netxen_rx_buffer *rxbuf;
1637 u32 consumer = sds_ring->consumer;
1640 u64 sts_data0, sts_data1;
1641 int opcode, ring = 0, desc_cnt;
1643 while (count < max) {
1644 desc = &sds_ring->desc_head[consumer];
1645 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1647 if (!(sts_data0 & STATUS_OWNER_HOST))
1650 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1652 opcode = netxen_get_sts_opcode(sts_data0);
1655 case NETXEN_NIC_RXPKT_DESC:
1656 case NETXEN_OLD_RXPKT_DESC:
1657 case NETXEN_NIC_SYN_OFFLOAD:
1658 ring = netxen_get_sts_type(sts_data0);
1659 rxbuf = netxen_process_rcv(adapter, sds_ring,
1662 case NETXEN_NIC_LRO_DESC:
1663 ring = netxen_get_lro_sts_type(sts_data0);
1664 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1665 rxbuf = netxen_process_lro(adapter, sds_ring,
1666 ring, sts_data0, sts_data1);
1668 case NETXEN_NIC_RESPONSE_DESC:
1669 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1674 WARN_ON(desc_cnt > 1);
1677 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1680 for (; desc_cnt > 0; desc_cnt--) {
1681 desc = &sds_ring->desc_head[consumer];
1682 desc->status_desc_data[0] =
1683 cpu_to_le64(STATUS_OWNER_PHANTOM);
1684 consumer = get_next_index(consumer, sds_ring->num_desc);
1689 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1690 struct nx_host_rds_ring *rds_ring =
1691 &adapter->recv_ctx.rds_rings[ring];
1693 if (!list_empty(&sds_ring->free_list[ring])) {
1694 list_for_each(cur, &sds_ring->free_list[ring]) {
1695 rxbuf = list_entry(cur,
1696 struct netxen_rx_buffer, list);
1697 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1699 spin_lock(&rds_ring->lock);
1700 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1701 &rds_ring->free_list);
1702 spin_unlock(&rds_ring->lock);
1705 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1709 sds_ring->consumer = consumer;
1710 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1716 /* Process Command status ring */
1717 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1719 u32 sw_consumer, hw_consumer;
1721 struct netxen_cmd_buffer *buffer;
1722 struct pci_dev *pdev = adapter->pdev;
1723 struct net_device *netdev = adapter->netdev;
1724 struct netxen_skb_frag *frag;
1726 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1728 if (!spin_trylock(&adapter->tx_clean_lock))
1731 sw_consumer = tx_ring->sw_consumer;
1732 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1734 while (sw_consumer != hw_consumer) {
1735 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1737 frag = &buffer->frag_array[0];
1738 pci_unmap_single(pdev, frag->dma, frag->length,
1741 for (i = 1; i < buffer->frag_count; i++) {
1742 frag++; /* Get the next frag */
1743 pci_unmap_page(pdev, frag->dma, frag->length,
1748 adapter->stats.xmitfinished++;
1749 dev_kfree_skb_any(buffer->skb);
1753 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1754 if (++count >= MAX_STATUS_HANDLE)
1758 if (count && netif_running(netdev)) {
1759 tx_ring->sw_consumer = sw_consumer;
1763 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1764 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1765 netif_wake_queue(netdev);
1766 adapter->tx_timeo_cnt = 0;
1769 * If everything is freed up to consumer then check if the ring is full
1770 * If the ring is full then check if more needs to be freed and
1771 * schedule the call back again.
1773 * This happens when there are 2 CPUs. One could be freeing and the
1774 * other filling it. If the ring is full when we get out of here and
1775 * the card has already interrupted the host then the host can miss the
1778 * There is still a possible race condition and the host could miss an
1779 * interrupt. The card has to take care of this.
1781 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1782 done = (sw_consumer == hw_consumer);
1783 spin_unlock(&adapter->tx_clean_lock);
1789 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1790 struct nx_host_rds_ring *rds_ring)
1792 struct rcv_desc *pdesc;
1793 struct netxen_rx_buffer *buffer;
1794 int producer, count = 0;
1795 netxen_ctx_msg msg = 0;
1796 struct list_head *head;
1798 producer = rds_ring->producer;
1800 head = &rds_ring->free_list;
1801 while (!list_empty(head)) {
1803 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1806 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1811 list_del(&buffer->list);
1813 /* make a rcv descriptor */
1814 pdesc = &rds_ring->desc_head[producer];
1815 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1816 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1817 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1819 producer = get_next_index(producer, rds_ring->num_desc);
1823 rds_ring->producer = producer;
1824 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1825 (producer-1) & (rds_ring->num_desc-1));
1827 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1829 * Write a doorbell msg to tell phanmon of change in
1830 * receive ring producer
1831 * Only for firmware version < 4.0.0
1833 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1834 netxen_set_msg_privid(msg);
1835 netxen_set_msg_count(msg,
1837 (rds_ring->num_desc - 1)));
1838 netxen_set_msg_ctxid(msg, adapter->portnum);
1839 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1840 NXWRIO(adapter, DB_NORMALIZE(adapter,
1841 NETXEN_RCV_PRODUCER_OFFSET), msg);
1847 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1848 struct nx_host_rds_ring *rds_ring)
1850 struct rcv_desc *pdesc;
1851 struct netxen_rx_buffer *buffer;
1852 int producer, count = 0;
1853 struct list_head *head;
1855 if (!spin_trylock(&rds_ring->lock))
1858 producer = rds_ring->producer;
1860 head = &rds_ring->free_list;
1861 while (!list_empty(head)) {
1863 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1866 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1871 list_del(&buffer->list);
1873 /* make a rcv descriptor */
1874 pdesc = &rds_ring->desc_head[producer];
1875 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1876 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1877 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1879 producer = get_next_index(producer, rds_ring->num_desc);
1883 rds_ring->producer = producer;
1884 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1885 (producer - 1) & (rds_ring->num_desc - 1));
1887 spin_unlock(&rds_ring->lock);
1890 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1892 memset(&adapter->stats, 0, sizeof(adapter->stats));