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 = vmalloc(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 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
224 tx_ring->cmd_buf_arr = cmd_buf_arr;
226 recv_ctx = &adapter->recv_ctx;
228 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
229 rds_ring = kzalloc(size, GFP_KERNEL);
230 if (rds_ring == NULL) {
231 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
235 recv_ctx->rds_rings = rds_ring;
237 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
238 rds_ring = &recv_ctx->rds_rings[ring];
240 case RCV_RING_NORMAL:
241 rds_ring->num_desc = adapter->num_rxd;
242 if (adapter->ahw.cut_through) {
244 NX_CT_DEFAULT_RX_BUF_LEN;
246 NX_CT_DEFAULT_RX_BUF_LEN;
248 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
250 NX_P3_RX_BUF_MAX_LEN;
253 NX_P2_RX_BUF_MAX_LEN;
255 rds_ring->dma_size + NET_IP_ALIGN;
260 rds_ring->num_desc = adapter->num_jumbo_rxd;
261 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
263 NX_P3_RX_JUMBO_BUF_MAX_LEN;
266 NX_P2_RX_JUMBO_BUF_MAX_LEN;
268 if (adapter->capabilities & NX_CAP0_HW_LRO)
269 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
272 rds_ring->dma_size + NET_IP_ALIGN;
276 rds_ring->num_desc = adapter->num_lro_rxd;
277 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
278 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
282 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
283 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
284 if (rds_ring->rx_buf_arr == NULL) {
285 printk(KERN_ERR "%s: Failed to allocate "
286 "rx buffer ring %d\n",
288 /* free whatever was already allocated */
291 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
292 INIT_LIST_HEAD(&rds_ring->free_list);
294 * Now go through all of them, set reference handles
295 * and put them in the queues.
297 rx_buf = rds_ring->rx_buf_arr;
298 for (i = 0; i < rds_ring->num_desc; i++) {
299 list_add_tail(&rx_buf->list,
300 &rds_ring->free_list);
301 rx_buf->ref_handle = i;
302 rx_buf->state = NETXEN_BUFFER_FREE;
305 spin_lock_init(&rds_ring->lock);
308 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
309 sds_ring = &recv_ctx->sds_rings[ring];
310 sds_ring->irq = adapter->msix_entries[ring].vector;
311 sds_ring->adapter = adapter;
312 sds_ring->num_desc = adapter->num_rxd;
314 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
315 INIT_LIST_HEAD(&sds_ring->free_list[i]);
321 netxen_free_sw_resources(adapter);
326 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
327 * address to external PCI CRB address.
329 static u32 netxen_decode_crb_addr(u32 addr)
332 u32 base_addr, offset, pci_base;
334 crb_addr_transform_setup();
336 pci_base = NETXEN_ADDR_ERROR;
337 base_addr = addr & 0xfff00000;
338 offset = addr & 0x000fffff;
340 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
341 if (crb_addr_xform[i] == base_addr) {
346 if (pci_base == NETXEN_ADDR_ERROR)
349 return (pci_base + offset);
352 #define NETXEN_MAX_ROM_WAIT_USEC 100
354 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
362 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
364 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
365 dev_err(&adapter->pdev->dev,
366 "Timeout reached waiting for rom done");
374 static int do_rom_fast_read(struct netxen_adapter *adapter,
377 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
378 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
379 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
380 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
381 if (netxen_wait_rom_done(adapter)) {
382 printk("Error waiting for rom done\n");
385 /* reset abyte_cnt and dummy_byte_cnt */
386 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
388 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
390 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
394 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
395 u8 *bytes, size_t size)
400 for (addridx = addr; addridx < (addr + size); addridx += 4) {
402 ret = do_rom_fast_read(adapter, addridx, &v);
405 *(__le32 *)bytes = cpu_to_le32(v);
413 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
414 u8 *bytes, size_t size)
418 ret = netxen_rom_lock(adapter);
422 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
424 netxen_rom_unlock(adapter);
428 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
432 if (netxen_rom_lock(adapter) != 0)
435 ret = do_rom_fast_read(adapter, addr, valp);
436 netxen_rom_unlock(adapter);
440 #define NETXEN_BOARDTYPE 0x4008
441 #define NETXEN_BOARDNUM 0x400c
442 #define NETXEN_CHIPNUM 0x4010
444 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
447 int i, n, init_delay = 0;
448 struct crb_addr_pair *buf;
453 netxen_rom_lock(adapter);
454 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
455 netxen_rom_unlock(adapter);
457 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
458 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
460 netxen_rom_fast_read(adapter, 4, &n) != 0) {
461 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
462 "n: %08x\n", netxen_nic_driver_name, n);
465 offset = n & 0xffffU;
466 n = (n >> 16) & 0xffffU;
468 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
470 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
471 "n: %08x\n", netxen_nic_driver_name, n);
479 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
480 " initialized.\n", __func__, n);
484 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
486 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
487 netxen_nic_driver_name);
491 for (i = 0; i < n; i++) {
492 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
493 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
503 for (i = 0; i < n; i++) {
505 off = netxen_decode_crb_addr(buf[i].addr);
506 if (off == NETXEN_ADDR_ERROR) {
507 printk(KERN_ERR"CRB init value out of range %x\n",
511 off += NETXEN_PCI_CRBSPACE;
516 /* skipping cold reboot MAGIC */
517 if (off == NETXEN_CAM_RAM(0x1fc))
520 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
521 if (off == (NETXEN_CRB_I2C0 + 0x1c))
523 /* do not reset PCI */
524 if (off == (ROMUSB_GLB + 0xbc))
526 if (off == (ROMUSB_GLB + 0xa8))
528 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
530 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
532 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
534 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
536 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
537 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
538 buf[i].data = 0x1020;
539 /* skip the function enable register */
540 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
542 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
544 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
549 /* After writing this register, HW needs time for CRB */
550 /* to quiet down (else crb_window returns 0xffffffff) */
551 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
553 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
554 /* hold xdma in reset also */
555 buf[i].data = NETXEN_NIC_XDMA_RESET;
556 buf[i].data = 0x8000ff;
560 NXWR32(adapter, off, buf[i].data);
566 /* disable_peg_cache_all */
568 /* unreset_net_cache */
569 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
570 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
571 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
574 /* p2dn replyCount */
575 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
576 /* disable_peg_cache 0 */
577 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
578 /* disable_peg_cache 1 */
579 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
584 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
585 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
587 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
588 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
590 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
591 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
593 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
594 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
598 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
601 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
602 __le32 entries = cpu_to_le32(directory->num_entries);
604 for (i = 0; i < entries; i++) {
606 __le32 offs = cpu_to_le32(directory->findex) +
607 (i * cpu_to_le32(directory->entry_size));
608 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
610 if (tab_type == section)
611 return (struct uni_table_desc *) &unirom[offs];
618 nx_set_product_offs(struct netxen_adapter *adapter)
620 struct uni_table_desc *ptab_descr;
621 const u8 *unirom = adapter->fw->data;
625 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
626 1 : netxen_p3_has_mn(adapter);
628 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
629 if (ptab_descr == NULL)
632 entries = cpu_to_le32(ptab_descr->num_entries);
635 for (i = 0; i < entries; i++) {
637 __le32 flags, file_chiprev, offs;
638 u8 chiprev = adapter->ahw.revision_id;
641 offs = cpu_to_le32(ptab_descr->findex) +
642 (i * cpu_to_le32(ptab_descr->entry_size));
643 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
644 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
645 NX_UNI_CHIP_REV_OFF));
647 flagbit = mn_present ? 1 : 2;
649 if ((chiprev == file_chiprev) &&
650 ((1ULL << flagbit) & flags)) {
651 adapter->file_prd_off = offs;
656 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
665 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
666 u32 section, u32 idx_offset)
668 const u8 *unirom = adapter->fw->data;
669 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
671 struct uni_table_desc *tab_desc;
674 tab_desc = nx_get_table_desc(unirom, section);
676 if (tab_desc == NULL)
679 offs = cpu_to_le32(tab_desc->findex) +
680 (cpu_to_le32(tab_desc->entry_size) * idx);
682 return (struct uni_data_desc *)&unirom[offs];
686 nx_get_bootld_offs(struct netxen_adapter *adapter)
688 u32 offs = NETXEN_BOOTLD_START;
690 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
691 offs = cpu_to_le32((nx_get_data_desc(adapter,
692 NX_UNI_DIR_SECT_BOOTLD,
693 NX_UNI_BOOTLD_IDX_OFF))->findex);
695 return (u8 *)&adapter->fw->data[offs];
699 nx_get_fw_offs(struct netxen_adapter *adapter)
701 u32 offs = NETXEN_IMAGE_START;
703 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
704 offs = cpu_to_le32((nx_get_data_desc(adapter,
706 NX_UNI_FIRMWARE_IDX_OFF))->findex);
708 return (u8 *)&adapter->fw->data[offs];
712 nx_get_fw_size(struct netxen_adapter *adapter)
714 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
715 return cpu_to_le32((nx_get_data_desc(adapter,
717 NX_UNI_FIRMWARE_IDX_OFF))->size);
720 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
724 nx_get_fw_version(struct netxen_adapter *adapter)
726 struct uni_data_desc *fw_data_desc;
727 const struct firmware *fw = adapter->fw;
728 __le32 major, minor, sub;
732 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
734 fw_data_desc = nx_get_data_desc(adapter,
735 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
736 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
737 cpu_to_le32(fw_data_desc->size) - 17;
739 for (i = 0; i < 12; i++) {
740 if (!strncmp(&ver_str[i], "REV=", 4)) {
741 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
742 &major, &minor, &sub);
750 return major + (minor << 8) + (sub << 16);
753 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
757 nx_get_bios_version(struct netxen_adapter *adapter)
759 const struct firmware *fw = adapter->fw;
760 __le32 bios_ver, prd_off = adapter->file_prd_off;
762 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
763 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
764 + NX_UNI_BIOS_VERSION_OFF));
765 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
768 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
773 netxen_need_fw_reset(struct netxen_adapter *adapter)
775 u32 count, old_count;
776 u32 val, version, major, minor, build;
780 /* NX2031 firmware doesn't support heartbit */
781 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
784 if (adapter->need_fw_reset)
787 /* last attempt had failed */
788 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
791 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
793 for (i = 0; i < 10; i++) {
795 timeout = msleep_interruptible(200);
797 NXWR32(adapter, CRB_CMDPEG_STATE,
798 PHAN_INITIALIZE_FAILED);
802 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
803 if (count != old_count)
807 /* firmware is dead */
808 if (count == old_count)
811 /* check if we have got newer or different file firmware */
814 val = nx_get_fw_version(adapter);
816 version = NETXEN_DECODE_VERSION(val);
818 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
819 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
820 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
822 if (version > NETXEN_VERSION_CODE(major, minor, build))
825 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
826 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
828 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
829 fw_type = (val & 0x4) ?
830 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
832 if (adapter->fw_type != fw_type)
840 static char *fw_name[] = {
841 NX_P2_MN_ROMIMAGE_NAME,
842 NX_P3_CT_ROMIMAGE_NAME,
843 NX_P3_MN_ROMIMAGE_NAME,
844 NX_UNIFIED_ROMIMAGE_NAME,
845 NX_FLASH_ROMIMAGE_NAME,
849 netxen_load_firmware(struct netxen_adapter *adapter)
852 u32 i, flashaddr, size;
853 const struct firmware *fw = adapter->fw;
854 struct pci_dev *pdev = adapter->pdev;
856 dev_info(&pdev->dev, "loading firmware from %s\n",
857 fw_name[adapter->fw_type]);
859 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
860 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
865 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
867 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
868 flashaddr = NETXEN_BOOTLD_START;
870 for (i = 0; i < size; i++) {
871 data = cpu_to_le64(ptr64[i]);
873 if (adapter->pci_mem_write(adapter, flashaddr, data))
879 size = (__force u32)nx_get_fw_size(adapter) / 8;
881 ptr64 = (u64 *)nx_get_fw_offs(adapter);
882 flashaddr = NETXEN_IMAGE_START;
884 for (i = 0; i < size; i++) {
885 data = cpu_to_le64(ptr64[i]);
887 if (adapter->pci_mem_write(adapter,
897 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
898 flashaddr = NETXEN_BOOTLD_START;
900 for (i = 0; i < size; i++) {
901 if (netxen_rom_fast_read(adapter,
902 flashaddr, (int *)&lo) != 0)
904 if (netxen_rom_fast_read(adapter,
905 flashaddr + 4, (int *)&hi) != 0)
908 /* hi, lo are already in host endian byteorder */
909 data = (((u64)hi << 32) | lo);
911 if (adapter->pci_mem_write(adapter,
920 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
921 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
922 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
923 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
924 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
926 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
927 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
934 netxen_validate_firmware(struct netxen_adapter *adapter)
937 u32 ver, min_ver, bios, min_size;
938 struct pci_dev *pdev = adapter->pdev;
939 const struct firmware *fw = adapter->fw;
940 u8 fw_type = adapter->fw_type;
942 if (fw_type == NX_UNIFIED_ROMIMAGE) {
943 if (nx_set_product_offs(adapter))
946 min_size = NX_UNI_FW_MIN_SIZE;
948 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
949 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
952 min_size = NX_FW_MIN_SIZE;
955 if (fw->size < min_size)
958 val = nx_get_fw_version(adapter);
960 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
961 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
963 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
965 ver = NETXEN_DECODE_VERSION(val);
967 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
969 "%s: firmware version %d.%d.%d unsupported\n",
970 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
974 val = nx_get_bios_version(adapter);
975 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
976 if ((__force u32)val != bios) {
977 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
982 /* check if flashed firmware is newer */
983 if (netxen_rom_fast_read(adapter,
984 NX_FW_VERSION_OFFSET, (int *)&val))
986 val = NETXEN_DECODE_VERSION(val);
988 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
993 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
998 nx_get_next_fwtype(struct netxen_adapter *adapter)
1002 switch (adapter->fw_type) {
1003 case NX_UNKNOWN_ROMIMAGE:
1004 fw_type = NX_UNIFIED_ROMIMAGE;
1007 case NX_UNIFIED_ROMIMAGE:
1008 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1009 fw_type = NX_FLASH_ROMIMAGE;
1010 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1011 fw_type = NX_P2_MN_ROMIMAGE;
1012 else if (netxen_p3_has_mn(adapter))
1013 fw_type = NX_P3_MN_ROMIMAGE;
1015 fw_type = NX_P3_CT_ROMIMAGE;
1018 case NX_P3_MN_ROMIMAGE:
1019 fw_type = NX_P3_CT_ROMIMAGE;
1022 case NX_P2_MN_ROMIMAGE:
1023 case NX_P3_CT_ROMIMAGE:
1025 fw_type = NX_FLASH_ROMIMAGE;
1029 adapter->fw_type = fw_type;
1033 netxen_p3_has_mn(struct netxen_adapter *adapter)
1035 u32 capability, flashed_ver;
1038 /* NX2031 always had MN */
1039 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1042 netxen_rom_fast_read(adapter,
1043 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1044 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1046 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1048 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1049 if (capability & NX_PEG_TUNE_MN_PRESENT)
1055 void netxen_request_firmware(struct netxen_adapter *adapter)
1057 struct pci_dev *pdev = adapter->pdev;
1060 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1063 nx_get_next_fwtype(adapter);
1065 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1068 rc = request_firmware(&adapter->fw,
1069 fw_name[adapter->fw_type], &pdev->dev);
1073 rc = netxen_validate_firmware(adapter);
1075 release_firmware(adapter->fw);
1084 netxen_release_firmware(struct netxen_adapter *adapter)
1087 release_firmware(adapter->fw);
1091 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1096 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1099 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1100 NETXEN_HOST_DUMMY_DMA_SIZE,
1101 &adapter->dummy_dma.phys_addr);
1102 if (adapter->dummy_dma.addr == NULL) {
1103 dev_err(&adapter->pdev->dev,
1104 "ERROR: Could not allocate dummy DMA memory\n");
1108 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1109 hi = (addr >> 32) & 0xffffffff;
1110 lo = addr & 0xffffffff;
1112 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1113 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1119 * NetXen DMA watchdog control:
1121 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1122 * Bit 1 : disable_request => 1 req disable dma watchdog
1123 * Bit 2 : enable_request => 1 req enable dma watchdog
1126 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1131 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1134 if (!adapter->dummy_dma.addr)
1137 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1138 if ((ctrl & 0x1) != 0) {
1139 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1141 while ((ctrl & 0x1) != 0) {
1145 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1153 pci_free_consistent(adapter->pdev,
1154 NETXEN_HOST_DUMMY_DMA_SIZE,
1155 adapter->dummy_dma.addr,
1156 adapter->dummy_dma.phys_addr);
1157 adapter->dummy_dma.addr = NULL;
1159 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1162 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1171 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1174 case PHAN_INITIALIZE_COMPLETE:
1175 case PHAN_INITIALIZE_ACK:
1177 case PHAN_INITIALIZE_FAILED:
1185 } while (--retries);
1187 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1190 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1195 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1201 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1203 if (val == PHAN_PEG_RCV_INITIALIZED)
1208 } while (--retries);
1211 printk(KERN_ERR "Receive Peg initialization not "
1212 "complete, state: 0x%x.\n", val);
1219 int netxen_init_firmware(struct netxen_adapter *adapter)
1223 err = netxen_receive_peg_ready(adapter);
1227 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1228 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1229 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1230 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1236 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1241 u8 link_status, module, duplex, autoneg;
1242 struct net_device *netdev = adapter->netdev;
1244 adapter->has_link_events = 1;
1246 cable_OUI = msg->body[1] & 0xffffffff;
1247 cable_len = (msg->body[1] >> 32) & 0xffff;
1248 link_speed = (msg->body[1] >> 48) & 0xffff;
1250 link_status = msg->body[2] & 0xff;
1251 duplex = (msg->body[2] >> 16) & 0xff;
1252 autoneg = (msg->body[2] >> 24) & 0xff;
1254 module = (msg->body[2] >> 8) & 0xff;
1255 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1256 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1257 netdev->name, cable_OUI, cable_len);
1258 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1259 printk(KERN_INFO "%s: unsupported cable length %d\n",
1260 netdev->name, cable_len);
1263 netxen_advert_link_change(adapter, link_status);
1265 /* update link parameters */
1266 if (duplex == LINKEVENT_FULL_DUPLEX)
1267 adapter->link_duplex = DUPLEX_FULL;
1269 adapter->link_duplex = DUPLEX_HALF;
1270 adapter->module_type = module;
1271 adapter->link_autoneg = autoneg;
1272 adapter->link_speed = link_speed;
1276 netxen_handle_fw_message(int desc_cnt, int index,
1277 struct nx_host_sds_ring *sds_ring)
1280 struct status_desc *desc;
1283 while (desc_cnt > 0 && i < 8) {
1284 desc = &sds_ring->desc_head[index];
1285 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1286 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1288 index = get_next_index(index, sds_ring->num_desc);
1292 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1294 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1295 netxen_handle_linkevent(sds_ring->adapter, &msg);
1303 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1304 struct nx_host_rds_ring *rds_ring,
1305 struct netxen_rx_buffer *buffer)
1307 struct sk_buff *skb;
1309 struct pci_dev *pdev = adapter->pdev;
1311 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1317 if (!adapter->ahw.cut_through)
1318 skb_reserve(skb, 2);
1320 dma = pci_map_single(pdev, skb->data,
1321 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1323 if (pci_dma_mapping_error(pdev, dma)) {
1324 dev_kfree_skb_any(skb);
1331 buffer->state = NETXEN_BUFFER_BUSY;
1336 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1337 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1339 struct netxen_rx_buffer *buffer;
1340 struct sk_buff *skb;
1342 buffer = &rds_ring->rx_buf_arr[index];
1344 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1345 PCI_DMA_FROMDEVICE);
1351 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1352 adapter->stats.csummed++;
1353 skb->ip_summed = CHECKSUM_UNNECESSARY;
1355 skb->ip_summed = CHECKSUM_NONE;
1357 skb->dev = adapter->netdev;
1361 buffer->state = NETXEN_BUFFER_FREE;
1365 static struct netxen_rx_buffer *
1366 netxen_process_rcv(struct netxen_adapter *adapter,
1367 struct nx_host_sds_ring *sds_ring,
1368 int ring, u64 sts_data0)
1370 struct net_device *netdev = adapter->netdev;
1371 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1372 struct netxen_rx_buffer *buffer;
1373 struct sk_buff *skb;
1374 struct nx_host_rds_ring *rds_ring;
1375 int index, length, cksum, pkt_offset;
1377 if (unlikely(ring >= adapter->max_rds_rings))
1380 rds_ring = &recv_ctx->rds_rings[ring];
1382 index = netxen_get_sts_refhandle(sts_data0);
1383 if (unlikely(index >= rds_ring->num_desc))
1386 buffer = &rds_ring->rx_buf_arr[index];
1388 length = netxen_get_sts_totallength(sts_data0);
1389 cksum = netxen_get_sts_status(sts_data0);
1390 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1392 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1396 if (length > rds_ring->skb_size)
1397 skb_put(skb, rds_ring->skb_size);
1399 skb_put(skb, length);
1403 skb_pull(skb, pkt_offset);
1405 skb->truesize = skb->len + sizeof(struct sk_buff);
1406 skb->protocol = eth_type_trans(skb, netdev);
1408 napi_gro_receive(&sds_ring->napi, skb);
1410 adapter->stats.rx_pkts++;
1411 adapter->stats.rxbytes += length;
1416 #define TCP_HDR_SIZE 20
1417 #define TCP_TS_OPTION_SIZE 12
1418 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1420 static struct netxen_rx_buffer *
1421 netxen_process_lro(struct netxen_adapter *adapter,
1422 struct nx_host_sds_ring *sds_ring,
1423 int ring, u64 sts_data0, u64 sts_data1)
1425 struct net_device *netdev = adapter->netdev;
1426 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1427 struct netxen_rx_buffer *buffer;
1428 struct sk_buff *skb;
1429 struct nx_host_rds_ring *rds_ring;
1432 bool push, timestamp;
1433 int l2_hdr_offset, l4_hdr_offset;
1435 u16 lro_length, length, data_offset;
1438 if (unlikely(ring > adapter->max_rds_rings))
1441 rds_ring = &recv_ctx->rds_rings[ring];
1443 index = netxen_get_lro_sts_refhandle(sts_data0);
1444 if (unlikely(index > rds_ring->num_desc))
1447 buffer = &rds_ring->rx_buf_arr[index];
1449 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1450 lro_length = netxen_get_lro_sts_length(sts_data0);
1451 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1452 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1453 push = netxen_get_lro_sts_push_flag(sts_data0);
1454 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1456 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1461 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1463 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1465 skb_put(skb, lro_length + data_offset);
1467 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1469 skb_pull(skb, l2_hdr_offset);
1470 skb->protocol = eth_type_trans(skb, netdev);
1472 iph = (struct iphdr *)skb->data;
1473 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1475 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1476 iph->tot_len = htons(length);
1478 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1480 th->seq = htonl(seq_number);
1484 netif_receive_skb(skb);
1486 adapter->stats.lro_pkts++;
1487 adapter->stats.rxbytes += length;
1492 #define netxen_merge_rx_buffers(list, head) \
1493 do { list_splice_tail_init(list, head); } while (0);
1496 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1498 struct netxen_adapter *adapter = sds_ring->adapter;
1500 struct list_head *cur;
1502 struct status_desc *desc;
1503 struct netxen_rx_buffer *rxbuf;
1505 u32 consumer = sds_ring->consumer;
1508 u64 sts_data0, sts_data1;
1509 int opcode, ring = 0, desc_cnt;
1511 while (count < max) {
1512 desc = &sds_ring->desc_head[consumer];
1513 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1515 if (!(sts_data0 & STATUS_OWNER_HOST))
1518 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1520 opcode = netxen_get_sts_opcode(sts_data0);
1523 case NETXEN_NIC_RXPKT_DESC:
1524 case NETXEN_OLD_RXPKT_DESC:
1525 case NETXEN_NIC_SYN_OFFLOAD:
1526 ring = netxen_get_sts_type(sts_data0);
1527 rxbuf = netxen_process_rcv(adapter, sds_ring,
1530 case NETXEN_NIC_LRO_DESC:
1531 ring = netxen_get_lro_sts_type(sts_data0);
1532 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1533 rxbuf = netxen_process_lro(adapter, sds_ring,
1534 ring, sts_data0, sts_data1);
1536 case NETXEN_NIC_RESPONSE_DESC:
1537 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1542 WARN_ON(desc_cnt > 1);
1545 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1548 for (; desc_cnt > 0; desc_cnt--) {
1549 desc = &sds_ring->desc_head[consumer];
1550 desc->status_desc_data[0] =
1551 cpu_to_le64(STATUS_OWNER_PHANTOM);
1552 consumer = get_next_index(consumer, sds_ring->num_desc);
1557 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1558 struct nx_host_rds_ring *rds_ring =
1559 &adapter->recv_ctx.rds_rings[ring];
1561 if (!list_empty(&sds_ring->free_list[ring])) {
1562 list_for_each(cur, &sds_ring->free_list[ring]) {
1563 rxbuf = list_entry(cur,
1564 struct netxen_rx_buffer, list);
1565 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1567 spin_lock(&rds_ring->lock);
1568 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1569 &rds_ring->free_list);
1570 spin_unlock(&rds_ring->lock);
1573 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1577 sds_ring->consumer = consumer;
1578 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1584 /* Process Command status ring */
1585 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1587 u32 sw_consumer, hw_consumer;
1589 struct netxen_cmd_buffer *buffer;
1590 struct pci_dev *pdev = adapter->pdev;
1591 struct net_device *netdev = adapter->netdev;
1592 struct netxen_skb_frag *frag;
1594 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1596 if (!spin_trylock(&adapter->tx_clean_lock))
1599 sw_consumer = tx_ring->sw_consumer;
1600 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1602 while (sw_consumer != hw_consumer) {
1603 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1605 frag = &buffer->frag_array[0];
1606 pci_unmap_single(pdev, frag->dma, frag->length,
1609 for (i = 1; i < buffer->frag_count; i++) {
1610 frag++; /* Get the next frag */
1611 pci_unmap_page(pdev, frag->dma, frag->length,
1616 adapter->stats.xmitfinished++;
1617 dev_kfree_skb_any(buffer->skb);
1621 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1622 if (++count >= MAX_STATUS_HANDLE)
1626 if (count && netif_running(netdev)) {
1627 tx_ring->sw_consumer = sw_consumer;
1631 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1632 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1633 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
1634 netif_wake_queue(netdev);
1635 adapter->tx_timeo_cnt = 0;
1637 __netif_tx_unlock(tx_ring->txq);
1641 * If everything is freed up to consumer then check if the ring is full
1642 * If the ring is full then check if more needs to be freed and
1643 * schedule the call back again.
1645 * This happens when there are 2 CPUs. One could be freeing and the
1646 * other filling it. If the ring is full when we get out of here and
1647 * the card has already interrupted the host then the host can miss the
1650 * There is still a possible race condition and the host could miss an
1651 * interrupt. The card has to take care of this.
1653 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1654 done = (sw_consumer == hw_consumer);
1655 spin_unlock(&adapter->tx_clean_lock);
1661 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1662 struct nx_host_rds_ring *rds_ring)
1664 struct rcv_desc *pdesc;
1665 struct netxen_rx_buffer *buffer;
1666 int producer, count = 0;
1667 netxen_ctx_msg msg = 0;
1668 struct list_head *head;
1670 producer = rds_ring->producer;
1672 spin_lock(&rds_ring->lock);
1673 head = &rds_ring->free_list;
1674 while (!list_empty(head)) {
1676 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1679 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1684 list_del(&buffer->list);
1686 /* make a rcv descriptor */
1687 pdesc = &rds_ring->desc_head[producer];
1688 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1689 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1690 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1692 producer = get_next_index(producer, rds_ring->num_desc);
1694 spin_unlock(&rds_ring->lock);
1697 rds_ring->producer = producer;
1698 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1699 (producer-1) & (rds_ring->num_desc-1));
1701 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1703 * Write a doorbell msg to tell phanmon of change in
1704 * receive ring producer
1705 * Only for firmware version < 4.0.0
1707 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1708 netxen_set_msg_privid(msg);
1709 netxen_set_msg_count(msg,
1711 (rds_ring->num_desc - 1)));
1712 netxen_set_msg_ctxid(msg, adapter->portnum);
1713 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1714 NXWRIO(adapter, DB_NORMALIZE(adapter,
1715 NETXEN_RCV_PRODUCER_OFFSET), msg);
1721 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1722 struct nx_host_rds_ring *rds_ring)
1724 struct rcv_desc *pdesc;
1725 struct netxen_rx_buffer *buffer;
1726 int producer, count = 0;
1727 struct list_head *head;
1729 producer = rds_ring->producer;
1730 if (!spin_trylock(&rds_ring->lock))
1733 head = &rds_ring->free_list;
1734 while (!list_empty(head)) {
1736 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1739 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1744 list_del(&buffer->list);
1746 /* make a rcv descriptor */
1747 pdesc = &rds_ring->desc_head[producer];
1748 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1749 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1750 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1752 producer = get_next_index(producer, rds_ring->num_desc);
1756 rds_ring->producer = producer;
1757 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1758 (producer - 1) & (rds_ring->num_desc - 1));
1760 spin_unlock(&rds_ring->lock);
1763 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1765 memset(&adapter->stats, 0, sizeof(adapter->stats));