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 <linux/if_vlan.h>
30 #include "netxen_nic.h"
31 #include "netxen_nic_hw.h"
33 struct crb_addr_pair {
38 #define NETXEN_MAX_CRB_XFORM 60
39 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
40 #define NETXEN_ADDR_ERROR (0xffffffff)
42 #define crb_addr_transform(name) \
43 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
44 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
46 #define NETXEN_NIC_XDMA_RESET 0x8000ff
49 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
50 struct nx_host_rds_ring *rds_ring);
51 static int netxen_p3_has_mn(struct netxen_adapter *adapter);
53 static void crb_addr_transform_setup(void)
55 crb_addr_transform(XDMA);
56 crb_addr_transform(TIMR);
57 crb_addr_transform(SRE);
58 crb_addr_transform(SQN3);
59 crb_addr_transform(SQN2);
60 crb_addr_transform(SQN1);
61 crb_addr_transform(SQN0);
62 crb_addr_transform(SQS3);
63 crb_addr_transform(SQS2);
64 crb_addr_transform(SQS1);
65 crb_addr_transform(SQS0);
66 crb_addr_transform(RPMX7);
67 crb_addr_transform(RPMX6);
68 crb_addr_transform(RPMX5);
69 crb_addr_transform(RPMX4);
70 crb_addr_transform(RPMX3);
71 crb_addr_transform(RPMX2);
72 crb_addr_transform(RPMX1);
73 crb_addr_transform(RPMX0);
74 crb_addr_transform(ROMUSB);
75 crb_addr_transform(SN);
76 crb_addr_transform(QMN);
77 crb_addr_transform(QMS);
78 crb_addr_transform(PGNI);
79 crb_addr_transform(PGND);
80 crb_addr_transform(PGN3);
81 crb_addr_transform(PGN2);
82 crb_addr_transform(PGN1);
83 crb_addr_transform(PGN0);
84 crb_addr_transform(PGSI);
85 crb_addr_transform(PGSD);
86 crb_addr_transform(PGS3);
87 crb_addr_transform(PGS2);
88 crb_addr_transform(PGS1);
89 crb_addr_transform(PGS0);
90 crb_addr_transform(PS);
91 crb_addr_transform(PH);
92 crb_addr_transform(NIU);
93 crb_addr_transform(I2Q);
94 crb_addr_transform(EG);
95 crb_addr_transform(MN);
96 crb_addr_transform(MS);
97 crb_addr_transform(CAS2);
98 crb_addr_transform(CAS1);
99 crb_addr_transform(CAS0);
100 crb_addr_transform(CAM);
101 crb_addr_transform(C2C1);
102 crb_addr_transform(C2C0);
103 crb_addr_transform(SMB);
104 crb_addr_transform(OCM0);
105 crb_addr_transform(I2C0);
108 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
110 struct netxen_recv_context *recv_ctx;
111 struct nx_host_rds_ring *rds_ring;
112 struct netxen_rx_buffer *rx_buf;
115 recv_ctx = &adapter->recv_ctx;
116 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
117 rds_ring = &recv_ctx->rds_rings[ring];
118 for (i = 0; i < rds_ring->num_desc; ++i) {
119 rx_buf = &(rds_ring->rx_buf_arr[i]);
120 if (rx_buf->state == NETXEN_BUFFER_FREE)
122 pci_unmap_single(adapter->pdev,
126 if (rx_buf->skb != NULL)
127 dev_kfree_skb_any(rx_buf->skb);
132 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
134 struct netxen_cmd_buffer *cmd_buf;
135 struct netxen_skb_frag *buffrag;
137 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
139 cmd_buf = tx_ring->cmd_buf_arr;
140 for (i = 0; i < tx_ring->num_desc; i++) {
141 buffrag = cmd_buf->frag_array;
143 pci_unmap_single(adapter->pdev, buffrag->dma,
144 buffrag->length, PCI_DMA_TODEVICE);
147 for (j = 1; j < cmd_buf->frag_count; j++) {
150 pci_unmap_page(adapter->pdev, buffrag->dma,
157 dev_kfree_skb_any(cmd_buf->skb);
164 void netxen_free_sw_resources(struct netxen_adapter *adapter)
166 struct netxen_recv_context *recv_ctx;
167 struct nx_host_rds_ring *rds_ring;
168 struct nx_host_tx_ring *tx_ring;
171 recv_ctx = &adapter->recv_ctx;
173 if (recv_ctx->rds_rings == NULL)
176 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
177 rds_ring = &recv_ctx->rds_rings[ring];
178 vfree(rds_ring->rx_buf_arr);
179 rds_ring->rx_buf_arr = NULL;
181 kfree(recv_ctx->rds_rings);
184 if (adapter->tx_ring == NULL)
187 tx_ring = adapter->tx_ring;
188 vfree(tx_ring->cmd_buf_arr);
190 adapter->tx_ring = NULL;
193 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
195 struct netxen_recv_context *recv_ctx;
196 struct nx_host_rds_ring *rds_ring;
197 struct nx_host_sds_ring *sds_ring;
198 struct nx_host_tx_ring *tx_ring;
199 struct netxen_rx_buffer *rx_buf;
202 struct netxen_cmd_buffer *cmd_buf_arr;
203 struct net_device *netdev = adapter->netdev;
205 tx_ring = kzalloc(sizeof(struct nx_host_tx_ring), GFP_KERNEL);
209 adapter->tx_ring = tx_ring;
211 tx_ring->num_desc = adapter->num_txd;
212 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
214 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
215 if (cmd_buf_arr == NULL)
218 tx_ring->cmd_buf_arr = cmd_buf_arr;
220 recv_ctx = &adapter->recv_ctx;
222 rds_ring = kcalloc(adapter->max_rds_rings,
223 sizeof(struct nx_host_rds_ring), GFP_KERNEL);
224 if (rds_ring == NULL)
227 recv_ctx->rds_rings = rds_ring;
229 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
230 rds_ring = &recv_ctx->rds_rings[ring];
232 case RCV_RING_NORMAL:
233 rds_ring->num_desc = adapter->num_rxd;
234 if (adapter->ahw.cut_through) {
236 NX_CT_DEFAULT_RX_BUF_LEN;
238 NX_CT_DEFAULT_RX_BUF_LEN;
240 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
242 NX_P3_RX_BUF_MAX_LEN;
245 NX_P2_RX_BUF_MAX_LEN;
247 rds_ring->dma_size + NET_IP_ALIGN;
252 rds_ring->num_desc = adapter->num_jumbo_rxd;
253 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
255 NX_P3_RX_JUMBO_BUF_MAX_LEN;
258 NX_P2_RX_JUMBO_BUF_MAX_LEN;
260 if (adapter->capabilities & NX_CAP0_HW_LRO)
261 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
264 rds_ring->dma_size + NET_IP_ALIGN;
268 rds_ring->num_desc = adapter->num_lro_rxd;
269 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
270 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
274 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
275 if (rds_ring->rx_buf_arr == NULL)
276 /* free whatever was already allocated */
279 INIT_LIST_HEAD(&rds_ring->free_list);
281 * Now go through all of them, set reference handles
282 * and put them in the queues.
284 rx_buf = rds_ring->rx_buf_arr;
285 for (i = 0; i < rds_ring->num_desc; i++) {
286 list_add_tail(&rx_buf->list,
287 &rds_ring->free_list);
288 rx_buf->ref_handle = i;
289 rx_buf->state = NETXEN_BUFFER_FREE;
292 spin_lock_init(&rds_ring->lock);
295 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
296 sds_ring = &recv_ctx->sds_rings[ring];
297 sds_ring->irq = adapter->msix_entries[ring].vector;
298 sds_ring->adapter = adapter;
299 sds_ring->num_desc = adapter->num_rxd;
301 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
302 INIT_LIST_HEAD(&sds_ring->free_list[i]);
308 netxen_free_sw_resources(adapter);
313 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
314 * address to external PCI CRB address.
316 static u32 netxen_decode_crb_addr(u32 addr)
319 u32 base_addr, offset, pci_base;
321 crb_addr_transform_setup();
323 pci_base = NETXEN_ADDR_ERROR;
324 base_addr = addr & 0xfff00000;
325 offset = addr & 0x000fffff;
327 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
328 if (crb_addr_xform[i] == base_addr) {
333 if (pci_base == NETXEN_ADDR_ERROR)
336 return pci_base + offset;
339 #define NETXEN_MAX_ROM_WAIT_USEC 100
341 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
349 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
351 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
352 dev_err(&adapter->pdev->dev,
353 "Timeout reached waiting for rom done");
361 static int do_rom_fast_read(struct netxen_adapter *adapter,
364 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
365 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
366 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
367 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
368 if (netxen_wait_rom_done(adapter)) {
369 printk("Error waiting for rom done\n");
372 /* reset abyte_cnt and dummy_byte_cnt */
373 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
377 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
381 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
382 u8 *bytes, size_t size)
387 for (addridx = addr; addridx < (addr + size); addridx += 4) {
389 ret = do_rom_fast_read(adapter, addridx, &v);
392 *(__le32 *)bytes = cpu_to_le32(v);
400 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
401 u8 *bytes, size_t size)
405 ret = netxen_rom_lock(adapter);
409 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
411 netxen_rom_unlock(adapter);
415 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
419 if (netxen_rom_lock(adapter) != 0)
422 ret = do_rom_fast_read(adapter, addr, valp);
423 netxen_rom_unlock(adapter);
427 #define NETXEN_BOARDTYPE 0x4008
428 #define NETXEN_BOARDNUM 0x400c
429 #define NETXEN_CHIPNUM 0x4010
431 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
434 int i, n, init_delay = 0;
435 struct crb_addr_pair *buf;
440 netxen_rom_lock(adapter);
441 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xfeffffff);
442 netxen_rom_unlock(adapter);
444 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
445 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
447 netxen_rom_fast_read(adapter, 4, &n) != 0) {
448 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
449 "n: %08x\n", netxen_nic_driver_name, n);
452 offset = n & 0xffffU;
453 n = (n >> 16) & 0xffffU;
455 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
457 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
458 "n: %08x\n", netxen_nic_driver_name, n);
466 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
467 " initialized.\n", __func__, n);
471 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
475 for (i = 0; i < n; i++) {
476 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
477 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
487 for (i = 0; i < n; i++) {
489 off = netxen_decode_crb_addr(buf[i].addr);
490 if (off == NETXEN_ADDR_ERROR) {
491 printk(KERN_ERR"CRB init value out of range %x\n",
495 off += NETXEN_PCI_CRBSPACE;
500 /* skipping cold reboot MAGIC */
501 if (off == NETXEN_CAM_RAM(0x1fc))
504 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
505 if (off == (NETXEN_CRB_I2C0 + 0x1c))
507 /* do not reset PCI */
508 if (off == (ROMUSB_GLB + 0xbc))
510 if (off == (ROMUSB_GLB + 0xa8))
512 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
514 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
516 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
518 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
520 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
521 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
522 buf[i].data = 0x1020;
523 /* skip the function enable register */
524 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
526 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
528 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
533 /* After writing this register, HW needs time for CRB */
534 /* to quiet down (else crb_window returns 0xffffffff) */
535 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
537 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
538 /* hold xdma in reset also */
539 buf[i].data = NETXEN_NIC_XDMA_RESET;
540 buf[i].data = 0x8000ff;
544 NXWR32(adapter, off, buf[i].data);
550 /* disable_peg_cache_all */
552 /* unreset_net_cache */
553 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
554 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
555 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
558 /* p2dn replyCount */
559 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
560 /* disable_peg_cache 0 */
561 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
562 /* disable_peg_cache 1 */
563 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
568 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
569 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
571 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
574 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
575 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
577 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
578 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
582 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
585 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
586 __le32 entries = cpu_to_le32(directory->num_entries);
588 for (i = 0; i < entries; i++) {
590 __le32 offs = cpu_to_le32(directory->findex) +
591 (i * cpu_to_le32(directory->entry_size));
592 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
594 if (tab_type == section)
595 return (struct uni_table_desc *) &unirom[offs];
601 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
604 netxen_nic_validate_header(struct netxen_adapter *adapter)
606 const u8 *unirom = adapter->fw->data;
607 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
608 u32 fw_file_size = adapter->fw->size;
613 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
616 entries = cpu_to_le32(directory->num_entries);
617 entry_size = cpu_to_le32(directory->entry_size);
618 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
620 if (fw_file_size < tab_size)
627 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
629 struct uni_table_desc *tab_desc;
630 struct uni_data_desc *descr;
631 const u8 *unirom = adapter->fw->data;
632 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
633 NX_UNI_BOOTLD_IDX_OFF));
638 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
643 tab_size = cpu_to_le32(tab_desc->findex) +
644 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
646 if (adapter->fw->size < tab_size)
649 offs = cpu_to_le32(tab_desc->findex) +
650 (cpu_to_le32(tab_desc->entry_size) * (idx));
651 descr = (struct uni_data_desc *)&unirom[offs];
653 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
655 if (adapter->fw->size < data_size)
662 netxen_nic_validate_fw(struct netxen_adapter *adapter)
664 struct uni_table_desc *tab_desc;
665 struct uni_data_desc *descr;
666 const u8 *unirom = adapter->fw->data;
667 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
668 NX_UNI_FIRMWARE_IDX_OFF));
673 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
678 tab_size = cpu_to_le32(tab_desc->findex) +
679 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
681 if (adapter->fw->size < tab_size)
684 offs = cpu_to_le32(tab_desc->findex) +
685 (cpu_to_le32(tab_desc->entry_size) * (idx));
686 descr = (struct uni_data_desc *)&unirom[offs];
687 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
689 if (adapter->fw->size < data_size)
697 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
699 struct uni_table_desc *ptab_descr;
700 const u8 *unirom = adapter->fw->data;
701 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
702 1 : netxen_p3_has_mn(adapter);
708 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
709 if (ptab_descr == NULL)
712 entries = cpu_to_le32(ptab_descr->num_entries);
713 entry_size = cpu_to_le32(ptab_descr->entry_size);
714 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
716 if (adapter->fw->size < tab_size)
720 for (i = 0; i < entries; i++) {
722 __le32 flags, file_chiprev, offs;
723 u8 chiprev = adapter->ahw.revision_id;
726 offs = cpu_to_le32(ptab_descr->findex) +
727 (i * cpu_to_le32(ptab_descr->entry_size));
728 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
729 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
730 NX_UNI_CHIP_REV_OFF));
732 flagbit = mn_present ? 1 : 2;
734 if ((chiprev == file_chiprev) &&
735 ((1ULL << flagbit) & flags)) {
736 adapter->file_prd_off = offs;
741 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
750 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
752 if (netxen_nic_validate_header(adapter)) {
753 dev_err(&adapter->pdev->dev,
754 "unified image: header validation failed\n");
758 if (netxen_nic_validate_product_offs(adapter)) {
759 dev_err(&adapter->pdev->dev,
760 "unified image: product validation failed\n");
764 if (netxen_nic_validate_bootld(adapter)) {
765 dev_err(&adapter->pdev->dev,
766 "unified image: bootld validation failed\n");
770 if (netxen_nic_validate_fw(adapter)) {
771 dev_err(&adapter->pdev->dev,
772 "unified image: firmware validation failed\n");
779 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
780 u32 section, u32 idx_offset)
782 const u8 *unirom = adapter->fw->data;
783 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
785 struct uni_table_desc *tab_desc;
788 tab_desc = nx_get_table_desc(unirom, section);
790 if (tab_desc == NULL)
793 offs = cpu_to_le32(tab_desc->findex) +
794 (cpu_to_le32(tab_desc->entry_size) * idx);
796 return (struct uni_data_desc *)&unirom[offs];
800 nx_get_bootld_offs(struct netxen_adapter *adapter)
802 u32 offs = NETXEN_BOOTLD_START;
804 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
805 offs = cpu_to_le32((nx_get_data_desc(adapter,
806 NX_UNI_DIR_SECT_BOOTLD,
807 NX_UNI_BOOTLD_IDX_OFF))->findex);
809 return (u8 *)&adapter->fw->data[offs];
813 nx_get_fw_offs(struct netxen_adapter *adapter)
815 u32 offs = NETXEN_IMAGE_START;
817 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
818 offs = cpu_to_le32((nx_get_data_desc(adapter,
820 NX_UNI_FIRMWARE_IDX_OFF))->findex);
822 return (u8 *)&adapter->fw->data[offs];
826 nx_get_fw_size(struct netxen_adapter *adapter)
828 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
829 return cpu_to_le32((nx_get_data_desc(adapter,
831 NX_UNI_FIRMWARE_IDX_OFF))->size);
834 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
838 nx_get_fw_version(struct netxen_adapter *adapter)
840 struct uni_data_desc *fw_data_desc;
841 const struct firmware *fw = adapter->fw;
842 __le32 major, minor, sub;
846 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
848 fw_data_desc = nx_get_data_desc(adapter,
849 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
850 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
851 cpu_to_le32(fw_data_desc->size) - 17;
853 for (i = 0; i < 12; i++) {
854 if (!strncmp(&ver_str[i], "REV=", 4)) {
855 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
856 &major, &minor, &sub);
864 return major + (minor << 8) + (sub << 16);
867 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
871 nx_get_bios_version(struct netxen_adapter *adapter)
873 const struct firmware *fw = adapter->fw;
874 __le32 bios_ver, prd_off = adapter->file_prd_off;
876 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
877 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
878 + NX_UNI_BIOS_VERSION_OFF));
879 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
882 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
887 netxen_need_fw_reset(struct netxen_adapter *adapter)
889 u32 count, old_count;
890 u32 val, version, major, minor, build;
894 /* NX2031 firmware doesn't support heartbit */
895 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
898 if (adapter->need_fw_reset)
901 /* last attempt had failed */
902 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
905 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
907 for (i = 0; i < 10; i++) {
909 timeout = msleep_interruptible(200);
911 NXWR32(adapter, CRB_CMDPEG_STATE,
912 PHAN_INITIALIZE_FAILED);
916 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
917 if (count != old_count)
921 /* firmware is dead */
922 if (count == old_count)
925 /* check if we have got newer or different file firmware */
928 val = nx_get_fw_version(adapter);
930 version = NETXEN_DECODE_VERSION(val);
932 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
933 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
934 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
936 if (version > NETXEN_VERSION_CODE(major, minor, build))
939 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
940 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
942 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
943 fw_type = (val & 0x4) ?
944 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
946 if (adapter->fw_type != fw_type)
954 #define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505)
957 netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
959 u32 flash_fw_ver, min_fw_ver;
961 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
964 if (netxen_rom_fast_read(adapter,
965 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
966 dev_err(&adapter->pdev->dev, "Unable to read flash fw"
971 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
972 min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
973 if (flash_fw_ver >= min_fw_ver)
976 dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
977 "[4.0.505]. Please update firmware on flash\n",
978 _major(flash_fw_ver), _minor(flash_fw_ver),
979 _build(flash_fw_ver));
983 static char *fw_name[] = {
984 NX_P2_MN_ROMIMAGE_NAME,
985 NX_P3_CT_ROMIMAGE_NAME,
986 NX_P3_MN_ROMIMAGE_NAME,
987 NX_UNIFIED_ROMIMAGE_NAME,
988 NX_FLASH_ROMIMAGE_NAME,
992 netxen_load_firmware(struct netxen_adapter *adapter)
995 u32 i, flashaddr, size;
996 const struct firmware *fw = adapter->fw;
997 struct pci_dev *pdev = adapter->pdev;
999 dev_info(&pdev->dev, "loading firmware from %s\n",
1000 fw_name[adapter->fw_type]);
1002 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1003 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
1008 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1010 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
1011 flashaddr = NETXEN_BOOTLD_START;
1013 for (i = 0; i < size; i++) {
1014 data = cpu_to_le64(ptr64[i]);
1016 if (adapter->pci_mem_write(adapter, flashaddr, data))
1022 size = (__force u32)nx_get_fw_size(adapter) / 8;
1024 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1025 flashaddr = NETXEN_IMAGE_START;
1027 for (i = 0; i < size; i++) {
1028 data = cpu_to_le64(ptr64[i]);
1030 if (adapter->pci_mem_write(adapter,
1037 size = (__force u32)nx_get_fw_size(adapter) % 8;
1039 data = cpu_to_le64(ptr64[i]);
1041 if (adapter->pci_mem_write(adapter,
1050 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1051 flashaddr = NETXEN_BOOTLD_START;
1053 for (i = 0; i < size; i++) {
1054 if (netxen_rom_fast_read(adapter,
1055 flashaddr, (int *)&lo) != 0)
1057 if (netxen_rom_fast_read(adapter,
1058 flashaddr + 4, (int *)&hi) != 0)
1061 /* hi, lo are already in host endian byteorder */
1062 data = (((u64)hi << 32) | lo);
1064 if (adapter->pci_mem_write(adapter,
1073 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1074 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1075 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1076 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1077 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1079 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1080 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1087 netxen_validate_firmware(struct netxen_adapter *adapter)
1090 __le32 flash_fw_ver;
1091 u32 file_fw_ver, min_ver, bios;
1092 struct pci_dev *pdev = adapter->pdev;
1093 const struct firmware *fw = adapter->fw;
1094 u8 fw_type = adapter->fw_type;
1097 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1098 if (netxen_nic_validate_unified_romimage(adapter))
1101 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1102 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1105 if (fw->size < NX_FW_MIN_SIZE)
1109 val = nx_get_fw_version(adapter);
1111 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1112 min_ver = NETXEN_MIN_P3_FW_SUPP;
1114 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1116 file_fw_ver = NETXEN_DECODE_VERSION(val);
1118 if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
1119 (file_fw_ver < min_ver)) {
1121 "%s: firmware version %d.%d.%d unsupported\n",
1122 fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
1123 _build(file_fw_ver));
1126 val = nx_get_bios_version(adapter);
1127 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
1128 if ((__force u32)val != bios) {
1129 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1134 if (netxen_rom_fast_read(adapter,
1135 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
1136 dev_err(&pdev->dev, "Unable to read flash fw version\n");
1139 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
1141 /* New fw from file is not allowed, if fw on flash is < 4.0.554 */
1142 crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
1143 if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
1144 NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1145 dev_err(&pdev->dev, "Incompatibility detected between driver "
1146 "and firmware version on flash. This configuration "
1147 "is not recommended. Please update the firmware on "
1148 "flash immediately\n");
1152 /* check if flashed firmware is newer only for no-mn and P2 case*/
1153 if (!netxen_p3_has_mn(adapter) ||
1154 NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1155 if (flash_fw_ver > file_fw_ver) {
1156 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1162 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1167 nx_get_next_fwtype(struct netxen_adapter *adapter)
1171 switch (adapter->fw_type) {
1172 case NX_UNKNOWN_ROMIMAGE:
1173 fw_type = NX_UNIFIED_ROMIMAGE;
1176 case NX_UNIFIED_ROMIMAGE:
1177 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1178 fw_type = NX_FLASH_ROMIMAGE;
1179 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1180 fw_type = NX_P2_MN_ROMIMAGE;
1181 else if (netxen_p3_has_mn(adapter))
1182 fw_type = NX_P3_MN_ROMIMAGE;
1184 fw_type = NX_P3_CT_ROMIMAGE;
1187 case NX_P3_MN_ROMIMAGE:
1188 fw_type = NX_P3_CT_ROMIMAGE;
1191 case NX_P2_MN_ROMIMAGE:
1192 case NX_P3_CT_ROMIMAGE:
1194 fw_type = NX_FLASH_ROMIMAGE;
1198 adapter->fw_type = fw_type;
1202 netxen_p3_has_mn(struct netxen_adapter *adapter)
1204 u32 capability, flashed_ver;
1207 /* NX2031 always had MN */
1208 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1211 netxen_rom_fast_read(adapter,
1212 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1213 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1215 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1217 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1218 if (capability & NX_PEG_TUNE_MN_PRESENT)
1224 void netxen_request_firmware(struct netxen_adapter *adapter)
1226 struct pci_dev *pdev = adapter->pdev;
1229 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1232 nx_get_next_fwtype(adapter);
1234 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1237 rc = request_firmware(&adapter->fw,
1238 fw_name[adapter->fw_type], &pdev->dev);
1242 rc = netxen_validate_firmware(adapter);
1244 release_firmware(adapter->fw);
1253 netxen_release_firmware(struct netxen_adapter *adapter)
1255 release_firmware(adapter->fw);
1259 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1264 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1267 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1268 NETXEN_HOST_DUMMY_DMA_SIZE,
1269 &adapter->dummy_dma.phys_addr);
1270 if (adapter->dummy_dma.addr == NULL) {
1271 dev_err(&adapter->pdev->dev,
1272 "ERROR: Could not allocate dummy DMA memory\n");
1276 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1277 hi = (addr >> 32) & 0xffffffff;
1278 lo = addr & 0xffffffff;
1280 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1281 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1287 * NetXen DMA watchdog control:
1289 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1290 * Bit 1 : disable_request => 1 req disable dma watchdog
1291 * Bit 2 : enable_request => 1 req enable dma watchdog
1294 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1299 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1302 if (!adapter->dummy_dma.addr)
1305 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1306 if ((ctrl & 0x1) != 0) {
1307 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1309 while ((ctrl & 0x1) != 0) {
1313 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1321 pci_free_consistent(adapter->pdev,
1322 NETXEN_HOST_DUMMY_DMA_SIZE,
1323 adapter->dummy_dma.addr,
1324 adapter->dummy_dma.phys_addr);
1325 adapter->dummy_dma.addr = NULL;
1327 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1330 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1339 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1341 case PHAN_INITIALIZE_COMPLETE:
1342 case PHAN_INITIALIZE_ACK:
1344 case PHAN_INITIALIZE_FAILED:
1352 } while (--retries);
1354 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1357 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1362 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1368 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1370 if (val == PHAN_PEG_RCV_INITIALIZED)
1375 } while (--retries);
1378 printk(KERN_ERR "Receive Peg initialization not "
1379 "complete, state: 0x%x.\n", val);
1386 int netxen_init_firmware(struct netxen_adapter *adapter)
1390 err = netxen_receive_peg_ready(adapter);
1394 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1395 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1396 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1398 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1399 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1405 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1410 u8 link_status, module, duplex, autoneg;
1411 struct net_device *netdev = adapter->netdev;
1413 adapter->has_link_events = 1;
1415 cable_OUI = msg->body[1] & 0xffffffff;
1416 cable_len = (msg->body[1] >> 32) & 0xffff;
1417 link_speed = (msg->body[1] >> 48) & 0xffff;
1419 link_status = msg->body[2] & 0xff;
1420 duplex = (msg->body[2] >> 16) & 0xff;
1421 autoneg = (msg->body[2] >> 24) & 0xff;
1423 module = (msg->body[2] >> 8) & 0xff;
1424 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1425 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1426 netdev->name, cable_OUI, cable_len);
1427 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1428 printk(KERN_INFO "%s: unsupported cable length %d\n",
1429 netdev->name, cable_len);
1432 /* update link parameters */
1433 if (duplex == LINKEVENT_FULL_DUPLEX)
1434 adapter->link_duplex = DUPLEX_FULL;
1436 adapter->link_duplex = DUPLEX_HALF;
1437 adapter->module_type = module;
1438 adapter->link_autoneg = autoneg;
1439 adapter->link_speed = link_speed;
1441 netxen_advert_link_change(adapter, link_status);
1445 netxen_handle_fw_message(int desc_cnt, int index,
1446 struct nx_host_sds_ring *sds_ring)
1449 struct status_desc *desc;
1452 while (desc_cnt > 0 && i < 8) {
1453 desc = &sds_ring->desc_head[index];
1454 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1455 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1457 index = get_next_index(index, sds_ring->num_desc);
1461 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1463 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1464 netxen_handle_linkevent(sds_ring->adapter, &msg);
1472 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1473 struct nx_host_rds_ring *rds_ring,
1474 struct netxen_rx_buffer *buffer)
1476 struct sk_buff *skb;
1478 struct pci_dev *pdev = adapter->pdev;
1480 buffer->skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size);
1486 if (!adapter->ahw.cut_through)
1487 skb_reserve(skb, 2);
1489 dma = pci_map_single(pdev, skb->data,
1490 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1492 if (pci_dma_mapping_error(pdev, dma)) {
1493 dev_kfree_skb_any(skb);
1500 buffer->state = NETXEN_BUFFER_BUSY;
1505 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1506 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1508 struct netxen_rx_buffer *buffer;
1509 struct sk_buff *skb;
1511 buffer = &rds_ring->rx_buf_arr[index];
1513 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1514 PCI_DMA_FROMDEVICE);
1520 if (likely((adapter->netdev->features & NETIF_F_RXCSUM)
1521 && cksum == STATUS_CKSUM_OK)) {
1522 adapter->stats.csummed++;
1523 skb->ip_summed = CHECKSUM_UNNECESSARY;
1525 skb->ip_summed = CHECKSUM_NONE;
1529 buffer->state = NETXEN_BUFFER_FREE;
1533 static struct netxen_rx_buffer *
1534 netxen_process_rcv(struct netxen_adapter *adapter,
1535 struct nx_host_sds_ring *sds_ring,
1536 int ring, u64 sts_data0)
1538 struct net_device *netdev = adapter->netdev;
1539 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1540 struct netxen_rx_buffer *buffer;
1541 struct sk_buff *skb;
1542 struct nx_host_rds_ring *rds_ring;
1543 int index, length, cksum, pkt_offset;
1545 if (unlikely(ring >= adapter->max_rds_rings))
1548 rds_ring = &recv_ctx->rds_rings[ring];
1550 index = netxen_get_sts_refhandle(sts_data0);
1551 if (unlikely(index >= rds_ring->num_desc))
1554 buffer = &rds_ring->rx_buf_arr[index];
1556 length = netxen_get_sts_totallength(sts_data0);
1557 cksum = netxen_get_sts_status(sts_data0);
1558 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1560 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1564 if (length > rds_ring->skb_size)
1565 skb_put(skb, rds_ring->skb_size);
1567 skb_put(skb, length);
1571 skb_pull(skb, pkt_offset);
1573 skb->protocol = eth_type_trans(skb, netdev);
1575 napi_gro_receive(&sds_ring->napi, skb);
1577 adapter->stats.rx_pkts++;
1578 adapter->stats.rxbytes += length;
1583 #define TCP_HDR_SIZE 20
1584 #define TCP_TS_OPTION_SIZE 12
1585 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1587 static struct netxen_rx_buffer *
1588 netxen_process_lro(struct netxen_adapter *adapter,
1589 struct nx_host_sds_ring *sds_ring,
1590 int ring, u64 sts_data0, u64 sts_data1)
1592 struct net_device *netdev = adapter->netdev;
1593 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1594 struct netxen_rx_buffer *buffer;
1595 struct sk_buff *skb;
1596 struct nx_host_rds_ring *rds_ring;
1599 bool push, timestamp;
1600 int l2_hdr_offset, l4_hdr_offset;
1602 u16 lro_length, length, data_offset;
1606 if (unlikely(ring > adapter->max_rds_rings))
1609 rds_ring = &recv_ctx->rds_rings[ring];
1611 index = netxen_get_lro_sts_refhandle(sts_data0);
1612 if (unlikely(index > rds_ring->num_desc))
1615 buffer = &rds_ring->rx_buf_arr[index];
1617 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1618 lro_length = netxen_get_lro_sts_length(sts_data0);
1619 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1620 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1621 push = netxen_get_lro_sts_push_flag(sts_data0);
1622 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1624 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1629 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1631 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1633 skb_put(skb, lro_length + data_offset);
1635 skb_pull(skb, l2_hdr_offset);
1636 skb->protocol = eth_type_trans(skb, netdev);
1638 if (skb->protocol == htons(ETH_P_8021Q))
1639 vhdr_len = VLAN_HLEN;
1640 iph = (struct iphdr *)(skb->data + vhdr_len);
1641 th = (struct tcphdr *)((skb->data + vhdr_len) + (iph->ihl << 2));
1643 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1644 iph->tot_len = htons(length);
1646 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1648 th->seq = htonl(seq_number);
1652 if (adapter->flags & NETXEN_FW_MSS_CAP)
1653 skb_shinfo(skb)->gso_size = netxen_get_lro_sts_mss(sts_data1);
1655 netif_receive_skb(skb);
1657 adapter->stats.lro_pkts++;
1658 adapter->stats.rxbytes += length;
1663 #define netxen_merge_rx_buffers(list, head) \
1664 do { list_splice_tail_init(list, head); } while (0);
1667 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1669 struct netxen_adapter *adapter = sds_ring->adapter;
1671 struct list_head *cur;
1673 struct status_desc *desc;
1674 struct netxen_rx_buffer *rxbuf;
1676 u32 consumer = sds_ring->consumer;
1679 u64 sts_data0, sts_data1;
1680 int opcode, ring = 0, desc_cnt;
1682 while (count < max) {
1683 desc = &sds_ring->desc_head[consumer];
1684 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1686 if (!(sts_data0 & STATUS_OWNER_HOST))
1689 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1691 opcode = netxen_get_sts_opcode(sts_data0);
1694 case NETXEN_NIC_RXPKT_DESC:
1695 case NETXEN_OLD_RXPKT_DESC:
1696 case NETXEN_NIC_SYN_OFFLOAD:
1697 ring = netxen_get_sts_type(sts_data0);
1698 rxbuf = netxen_process_rcv(adapter, sds_ring,
1701 case NETXEN_NIC_LRO_DESC:
1702 ring = netxen_get_lro_sts_type(sts_data0);
1703 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1704 rxbuf = netxen_process_lro(adapter, sds_ring,
1705 ring, sts_data0, sts_data1);
1707 case NETXEN_NIC_RESPONSE_DESC:
1708 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1713 WARN_ON(desc_cnt > 1);
1716 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1719 for (; desc_cnt > 0; desc_cnt--) {
1720 desc = &sds_ring->desc_head[consumer];
1721 desc->status_desc_data[0] =
1722 cpu_to_le64(STATUS_OWNER_PHANTOM);
1723 consumer = get_next_index(consumer, sds_ring->num_desc);
1728 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1729 struct nx_host_rds_ring *rds_ring =
1730 &adapter->recv_ctx.rds_rings[ring];
1732 if (!list_empty(&sds_ring->free_list[ring])) {
1733 list_for_each(cur, &sds_ring->free_list[ring]) {
1734 rxbuf = list_entry(cur,
1735 struct netxen_rx_buffer, list);
1736 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1738 spin_lock(&rds_ring->lock);
1739 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1740 &rds_ring->free_list);
1741 spin_unlock(&rds_ring->lock);
1744 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1748 sds_ring->consumer = consumer;
1749 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1755 /* Process Command status ring */
1756 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1758 u32 sw_consumer, hw_consumer;
1760 struct netxen_cmd_buffer *buffer;
1761 struct pci_dev *pdev = adapter->pdev;
1762 struct net_device *netdev = adapter->netdev;
1763 struct netxen_skb_frag *frag;
1765 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1767 if (!spin_trylock(&adapter->tx_clean_lock))
1770 sw_consumer = tx_ring->sw_consumer;
1771 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1773 while (sw_consumer != hw_consumer) {
1774 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1776 frag = &buffer->frag_array[0];
1777 pci_unmap_single(pdev, frag->dma, frag->length,
1780 for (i = 1; i < buffer->frag_count; i++) {
1781 frag++; /* Get the next frag */
1782 pci_unmap_page(pdev, frag->dma, frag->length,
1787 adapter->stats.xmitfinished++;
1788 dev_kfree_skb_any(buffer->skb);
1792 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1793 if (++count >= MAX_STATUS_HANDLE)
1797 if (count && netif_running(netdev)) {
1798 tx_ring->sw_consumer = sw_consumer;
1802 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1803 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1804 netif_wake_queue(netdev);
1805 adapter->tx_timeo_cnt = 0;
1808 * If everything is freed up to consumer then check if the ring is full
1809 * If the ring is full then check if more needs to be freed and
1810 * schedule the call back again.
1812 * This happens when there are 2 CPUs. One could be freeing and the
1813 * other filling it. If the ring is full when we get out of here and
1814 * the card has already interrupted the host then the host can miss the
1817 * There is still a possible race condition and the host could miss an
1818 * interrupt. The card has to take care of this.
1820 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1821 done = (sw_consumer == hw_consumer);
1822 spin_unlock(&adapter->tx_clean_lock);
1828 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1829 struct nx_host_rds_ring *rds_ring)
1831 struct rcv_desc *pdesc;
1832 struct netxen_rx_buffer *buffer;
1833 int producer, count = 0;
1834 netxen_ctx_msg msg = 0;
1835 struct list_head *head;
1837 producer = rds_ring->producer;
1839 head = &rds_ring->free_list;
1840 while (!list_empty(head)) {
1842 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1845 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1850 list_del(&buffer->list);
1852 /* make a rcv descriptor */
1853 pdesc = &rds_ring->desc_head[producer];
1854 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1855 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1856 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1858 producer = get_next_index(producer, rds_ring->num_desc);
1862 rds_ring->producer = producer;
1863 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1864 (producer-1) & (rds_ring->num_desc-1));
1866 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1868 * Write a doorbell msg to tell phanmon of change in
1869 * receive ring producer
1870 * Only for firmware version < 4.0.0
1872 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1873 netxen_set_msg_privid(msg);
1874 netxen_set_msg_count(msg,
1876 (rds_ring->num_desc - 1)));
1877 netxen_set_msg_ctxid(msg, adapter->portnum);
1878 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1879 NXWRIO(adapter, DB_NORMALIZE(adapter,
1880 NETXEN_RCV_PRODUCER_OFFSET), msg);
1886 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1887 struct nx_host_rds_ring *rds_ring)
1889 struct rcv_desc *pdesc;
1890 struct netxen_rx_buffer *buffer;
1891 int producer, count = 0;
1892 struct list_head *head;
1894 if (!spin_trylock(&rds_ring->lock))
1897 producer = rds_ring->producer;
1899 head = &rds_ring->free_list;
1900 while (!list_empty(head)) {
1902 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1905 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1910 list_del(&buffer->list);
1912 /* make a rcv descriptor */
1913 pdesc = &rds_ring->desc_head[producer];
1914 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1915 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1916 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1918 producer = get_next_index(producer, rds_ring->num_desc);
1922 rds_ring->producer = producer;
1923 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1924 (producer - 1) & (rds_ring->num_desc - 1));
1926 spin_unlock(&rds_ring->lock);
1929 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1931 memset(&adapter->stats, 0, sizeof(adapter->stats));