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;
204 struct pci_dev *pdev = adapter->pdev;
206 size = sizeof(struct nx_host_tx_ring);
207 tx_ring = kzalloc(size, GFP_KERNEL);
208 if (tx_ring == NULL) {
209 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
213 adapter->tx_ring = tx_ring;
215 tx_ring->num_desc = adapter->num_txd;
216 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
218 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
219 if (cmd_buf_arr == NULL) {
220 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
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 = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
283 if (rds_ring->rx_buf_arr == NULL)
284 /* free whatever was already allocated */
287 INIT_LIST_HEAD(&rds_ring->free_list);
289 * Now go through all of them, set reference handles
290 * and put them in the queues.
292 rx_buf = rds_ring->rx_buf_arr;
293 for (i = 0; i < rds_ring->num_desc; i++) {
294 list_add_tail(&rx_buf->list,
295 &rds_ring->free_list);
296 rx_buf->ref_handle = i;
297 rx_buf->state = NETXEN_BUFFER_FREE;
300 spin_lock_init(&rds_ring->lock);
303 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
304 sds_ring = &recv_ctx->sds_rings[ring];
305 sds_ring->irq = adapter->msix_entries[ring].vector;
306 sds_ring->adapter = adapter;
307 sds_ring->num_desc = adapter->num_rxd;
309 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
310 INIT_LIST_HEAD(&sds_ring->free_list[i]);
316 netxen_free_sw_resources(adapter);
321 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
322 * address to external PCI CRB address.
324 static u32 netxen_decode_crb_addr(u32 addr)
327 u32 base_addr, offset, pci_base;
329 crb_addr_transform_setup();
331 pci_base = NETXEN_ADDR_ERROR;
332 base_addr = addr & 0xfff00000;
333 offset = addr & 0x000fffff;
335 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
336 if (crb_addr_xform[i] == base_addr) {
341 if (pci_base == NETXEN_ADDR_ERROR)
344 return pci_base + offset;
347 #define NETXEN_MAX_ROM_WAIT_USEC 100
349 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
357 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
359 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
360 dev_err(&adapter->pdev->dev,
361 "Timeout reached waiting for rom done");
369 static int do_rom_fast_read(struct netxen_adapter *adapter,
372 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
373 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
376 if (netxen_wait_rom_done(adapter)) {
377 printk("Error waiting for rom done\n");
380 /* reset abyte_cnt and dummy_byte_cnt */
381 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
383 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
385 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
389 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
390 u8 *bytes, size_t size)
395 for (addridx = addr; addridx < (addr + size); addridx += 4) {
397 ret = do_rom_fast_read(adapter, addridx, &v);
400 *(__le32 *)bytes = cpu_to_le32(v);
408 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
409 u8 *bytes, size_t size)
413 ret = netxen_rom_lock(adapter);
417 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
419 netxen_rom_unlock(adapter);
423 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
427 if (netxen_rom_lock(adapter) != 0)
430 ret = do_rom_fast_read(adapter, addr, valp);
431 netxen_rom_unlock(adapter);
435 #define NETXEN_BOARDTYPE 0x4008
436 #define NETXEN_BOARDNUM 0x400c
437 #define NETXEN_CHIPNUM 0x4010
439 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
442 int i, n, init_delay = 0;
443 struct crb_addr_pair *buf;
448 netxen_rom_lock(adapter);
449 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xfeffffff);
450 netxen_rom_unlock(adapter);
452 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
453 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
455 netxen_rom_fast_read(adapter, 4, &n) != 0) {
456 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
457 "n: %08x\n", netxen_nic_driver_name, n);
460 offset = n & 0xffffU;
461 n = (n >> 16) & 0xffffU;
463 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
465 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
466 "n: %08x\n", netxen_nic_driver_name, n);
474 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
475 " initialized.\n", __func__, n);
479 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
483 for (i = 0; i < n; i++) {
484 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
485 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
495 for (i = 0; i < n; i++) {
497 off = netxen_decode_crb_addr(buf[i].addr);
498 if (off == NETXEN_ADDR_ERROR) {
499 printk(KERN_ERR"CRB init value out of range %x\n",
503 off += NETXEN_PCI_CRBSPACE;
508 /* skipping cold reboot MAGIC */
509 if (off == NETXEN_CAM_RAM(0x1fc))
512 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
513 if (off == (NETXEN_CRB_I2C0 + 0x1c))
515 /* do not reset PCI */
516 if (off == (ROMUSB_GLB + 0xbc))
518 if (off == (ROMUSB_GLB + 0xa8))
520 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
522 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
524 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
526 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
528 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
529 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
530 buf[i].data = 0x1020;
531 /* skip the function enable register */
532 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
534 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
536 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
541 /* After writing this register, HW needs time for CRB */
542 /* to quiet down (else crb_window returns 0xffffffff) */
543 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
545 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
546 /* hold xdma in reset also */
547 buf[i].data = NETXEN_NIC_XDMA_RESET;
548 buf[i].data = 0x8000ff;
552 NXWR32(adapter, off, buf[i].data);
558 /* disable_peg_cache_all */
560 /* unreset_net_cache */
561 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
562 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
563 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
566 /* p2dn replyCount */
567 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
568 /* disable_peg_cache 0 */
569 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
570 /* disable_peg_cache 1 */
571 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
577 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
579 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
580 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
582 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
583 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
585 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
586 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
590 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
593 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
594 __le32 entries = cpu_to_le32(directory->num_entries);
596 for (i = 0; i < entries; i++) {
598 __le32 offs = cpu_to_le32(directory->findex) +
599 (i * cpu_to_le32(directory->entry_size));
600 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
602 if (tab_type == section)
603 return (struct uni_table_desc *) &unirom[offs];
609 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
612 netxen_nic_validate_header(struct netxen_adapter *adapter)
614 const u8 *unirom = adapter->fw->data;
615 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
616 u32 fw_file_size = adapter->fw->size;
621 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
624 entries = cpu_to_le32(directory->num_entries);
625 entry_size = cpu_to_le32(directory->entry_size);
626 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
628 if (fw_file_size < tab_size)
635 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
637 struct uni_table_desc *tab_desc;
638 struct uni_data_desc *descr;
639 const u8 *unirom = adapter->fw->data;
640 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
641 NX_UNI_BOOTLD_IDX_OFF));
646 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
651 tab_size = cpu_to_le32(tab_desc->findex) +
652 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
654 if (adapter->fw->size < tab_size)
657 offs = cpu_to_le32(tab_desc->findex) +
658 (cpu_to_le32(tab_desc->entry_size) * (idx));
659 descr = (struct uni_data_desc *)&unirom[offs];
661 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
663 if (adapter->fw->size < data_size)
670 netxen_nic_validate_fw(struct netxen_adapter *adapter)
672 struct uni_table_desc *tab_desc;
673 struct uni_data_desc *descr;
674 const u8 *unirom = adapter->fw->data;
675 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
676 NX_UNI_FIRMWARE_IDX_OFF));
681 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
686 tab_size = cpu_to_le32(tab_desc->findex) +
687 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
689 if (adapter->fw->size < tab_size)
692 offs = cpu_to_le32(tab_desc->findex) +
693 (cpu_to_le32(tab_desc->entry_size) * (idx));
694 descr = (struct uni_data_desc *)&unirom[offs];
695 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
697 if (adapter->fw->size < data_size)
705 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
707 struct uni_table_desc *ptab_descr;
708 const u8 *unirom = adapter->fw->data;
709 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
710 1 : netxen_p3_has_mn(adapter);
716 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
717 if (ptab_descr == NULL)
720 entries = cpu_to_le32(ptab_descr->num_entries);
721 entry_size = cpu_to_le32(ptab_descr->entry_size);
722 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
724 if (adapter->fw->size < tab_size)
728 for (i = 0; i < entries; i++) {
730 __le32 flags, file_chiprev, offs;
731 u8 chiprev = adapter->ahw.revision_id;
734 offs = cpu_to_le32(ptab_descr->findex) +
735 (i * cpu_to_le32(ptab_descr->entry_size));
736 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
737 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
738 NX_UNI_CHIP_REV_OFF));
740 flagbit = mn_present ? 1 : 2;
742 if ((chiprev == file_chiprev) &&
743 ((1ULL << flagbit) & flags)) {
744 adapter->file_prd_off = offs;
749 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
758 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
760 if (netxen_nic_validate_header(adapter)) {
761 dev_err(&adapter->pdev->dev,
762 "unified image: header validation failed\n");
766 if (netxen_nic_validate_product_offs(adapter)) {
767 dev_err(&adapter->pdev->dev,
768 "unified image: product validation failed\n");
772 if (netxen_nic_validate_bootld(adapter)) {
773 dev_err(&adapter->pdev->dev,
774 "unified image: bootld validation failed\n");
778 if (netxen_nic_validate_fw(adapter)) {
779 dev_err(&adapter->pdev->dev,
780 "unified image: firmware validation failed\n");
787 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
788 u32 section, u32 idx_offset)
790 const u8 *unirom = adapter->fw->data;
791 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
793 struct uni_table_desc *tab_desc;
796 tab_desc = nx_get_table_desc(unirom, section);
798 if (tab_desc == NULL)
801 offs = cpu_to_le32(tab_desc->findex) +
802 (cpu_to_le32(tab_desc->entry_size) * idx);
804 return (struct uni_data_desc *)&unirom[offs];
808 nx_get_bootld_offs(struct netxen_adapter *adapter)
810 u32 offs = NETXEN_BOOTLD_START;
812 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
813 offs = cpu_to_le32((nx_get_data_desc(adapter,
814 NX_UNI_DIR_SECT_BOOTLD,
815 NX_UNI_BOOTLD_IDX_OFF))->findex);
817 return (u8 *)&adapter->fw->data[offs];
821 nx_get_fw_offs(struct netxen_adapter *adapter)
823 u32 offs = NETXEN_IMAGE_START;
825 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
826 offs = cpu_to_le32((nx_get_data_desc(adapter,
828 NX_UNI_FIRMWARE_IDX_OFF))->findex);
830 return (u8 *)&adapter->fw->data[offs];
834 nx_get_fw_size(struct netxen_adapter *adapter)
836 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
837 return cpu_to_le32((nx_get_data_desc(adapter,
839 NX_UNI_FIRMWARE_IDX_OFF))->size);
842 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
846 nx_get_fw_version(struct netxen_adapter *adapter)
848 struct uni_data_desc *fw_data_desc;
849 const struct firmware *fw = adapter->fw;
850 __le32 major, minor, sub;
854 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
856 fw_data_desc = nx_get_data_desc(adapter,
857 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
858 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
859 cpu_to_le32(fw_data_desc->size) - 17;
861 for (i = 0; i < 12; i++) {
862 if (!strncmp(&ver_str[i], "REV=", 4)) {
863 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
864 &major, &minor, &sub);
872 return major + (minor << 8) + (sub << 16);
875 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
879 nx_get_bios_version(struct netxen_adapter *adapter)
881 const struct firmware *fw = adapter->fw;
882 __le32 bios_ver, prd_off = adapter->file_prd_off;
884 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
885 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
886 + NX_UNI_BIOS_VERSION_OFF));
887 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
890 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
895 netxen_need_fw_reset(struct netxen_adapter *adapter)
897 u32 count, old_count;
898 u32 val, version, major, minor, build;
902 /* NX2031 firmware doesn't support heartbit */
903 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
906 if (adapter->need_fw_reset)
909 /* last attempt had failed */
910 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
913 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
915 for (i = 0; i < 10; i++) {
917 timeout = msleep_interruptible(200);
919 NXWR32(adapter, CRB_CMDPEG_STATE,
920 PHAN_INITIALIZE_FAILED);
924 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
925 if (count != old_count)
929 /* firmware is dead */
930 if (count == old_count)
933 /* check if we have got newer or different file firmware */
936 val = nx_get_fw_version(adapter);
938 version = NETXEN_DECODE_VERSION(val);
940 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
941 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
942 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
944 if (version > NETXEN_VERSION_CODE(major, minor, build))
947 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
948 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
950 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
951 fw_type = (val & 0x4) ?
952 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
954 if (adapter->fw_type != fw_type)
962 #define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505)
965 netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
967 u32 flash_fw_ver, min_fw_ver;
969 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
972 if (netxen_rom_fast_read(adapter,
973 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
974 dev_err(&adapter->pdev->dev, "Unable to read flash fw"
979 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
980 min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
981 if (flash_fw_ver >= min_fw_ver)
984 dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
985 "[4.0.505]. Please update firmware on flash\n",
986 _major(flash_fw_ver), _minor(flash_fw_ver),
987 _build(flash_fw_ver));
991 static char *fw_name[] = {
992 NX_P2_MN_ROMIMAGE_NAME,
993 NX_P3_CT_ROMIMAGE_NAME,
994 NX_P3_MN_ROMIMAGE_NAME,
995 NX_UNIFIED_ROMIMAGE_NAME,
996 NX_FLASH_ROMIMAGE_NAME,
1000 netxen_load_firmware(struct netxen_adapter *adapter)
1003 u32 i, flashaddr, size;
1004 const struct firmware *fw = adapter->fw;
1005 struct pci_dev *pdev = adapter->pdev;
1007 dev_info(&pdev->dev, "loading firmware from %s\n",
1008 fw_name[adapter->fw_type]);
1010 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1011 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
1016 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1018 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
1019 flashaddr = NETXEN_BOOTLD_START;
1021 for (i = 0; i < size; i++) {
1022 data = cpu_to_le64(ptr64[i]);
1024 if (adapter->pci_mem_write(adapter, flashaddr, data))
1030 size = (__force u32)nx_get_fw_size(adapter) / 8;
1032 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1033 flashaddr = NETXEN_IMAGE_START;
1035 for (i = 0; i < size; i++) {
1036 data = cpu_to_le64(ptr64[i]);
1038 if (adapter->pci_mem_write(adapter,
1045 size = (__force u32)nx_get_fw_size(adapter) % 8;
1047 data = cpu_to_le64(ptr64[i]);
1049 if (adapter->pci_mem_write(adapter,
1058 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1059 flashaddr = NETXEN_BOOTLD_START;
1061 for (i = 0; i < size; i++) {
1062 if (netxen_rom_fast_read(adapter,
1063 flashaddr, (int *)&lo) != 0)
1065 if (netxen_rom_fast_read(adapter,
1066 flashaddr + 4, (int *)&hi) != 0)
1069 /* hi, lo are already in host endian byteorder */
1070 data = (((u64)hi << 32) | lo);
1072 if (adapter->pci_mem_write(adapter,
1081 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1082 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1083 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1084 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1085 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1087 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1088 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1095 netxen_validate_firmware(struct netxen_adapter *adapter)
1098 __le32 flash_fw_ver;
1099 u32 file_fw_ver, min_ver, bios;
1100 struct pci_dev *pdev = adapter->pdev;
1101 const struct firmware *fw = adapter->fw;
1102 u8 fw_type = adapter->fw_type;
1105 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1106 if (netxen_nic_validate_unified_romimage(adapter))
1109 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1110 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1113 if (fw->size < NX_FW_MIN_SIZE)
1117 val = nx_get_fw_version(adapter);
1119 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1120 min_ver = NETXEN_MIN_P3_FW_SUPP;
1122 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1124 file_fw_ver = NETXEN_DECODE_VERSION(val);
1126 if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
1127 (file_fw_ver < min_ver)) {
1129 "%s: firmware version %d.%d.%d unsupported\n",
1130 fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
1131 _build(file_fw_ver));
1134 val = nx_get_bios_version(adapter);
1135 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
1136 if ((__force u32)val != bios) {
1137 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1142 if (netxen_rom_fast_read(adapter,
1143 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
1144 dev_err(&pdev->dev, "Unable to read flash fw version\n");
1147 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
1149 /* New fw from file is not allowed, if fw on flash is < 4.0.554 */
1150 crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
1151 if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
1152 NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1153 dev_err(&pdev->dev, "Incompatibility detected between driver "
1154 "and firmware version on flash. This configuration "
1155 "is not recommended. Please update the firmware on "
1156 "flash immediately\n");
1160 /* check if flashed firmware is newer only for no-mn and P2 case*/
1161 if (!netxen_p3_has_mn(adapter) ||
1162 NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1163 if (flash_fw_ver > file_fw_ver) {
1164 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1170 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1175 nx_get_next_fwtype(struct netxen_adapter *adapter)
1179 switch (adapter->fw_type) {
1180 case NX_UNKNOWN_ROMIMAGE:
1181 fw_type = NX_UNIFIED_ROMIMAGE;
1184 case NX_UNIFIED_ROMIMAGE:
1185 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1186 fw_type = NX_FLASH_ROMIMAGE;
1187 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1188 fw_type = NX_P2_MN_ROMIMAGE;
1189 else if (netxen_p3_has_mn(adapter))
1190 fw_type = NX_P3_MN_ROMIMAGE;
1192 fw_type = NX_P3_CT_ROMIMAGE;
1195 case NX_P3_MN_ROMIMAGE:
1196 fw_type = NX_P3_CT_ROMIMAGE;
1199 case NX_P2_MN_ROMIMAGE:
1200 case NX_P3_CT_ROMIMAGE:
1202 fw_type = NX_FLASH_ROMIMAGE;
1206 adapter->fw_type = fw_type;
1210 netxen_p3_has_mn(struct netxen_adapter *adapter)
1212 u32 capability, flashed_ver;
1215 /* NX2031 always had MN */
1216 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1219 netxen_rom_fast_read(adapter,
1220 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1221 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1223 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1225 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1226 if (capability & NX_PEG_TUNE_MN_PRESENT)
1232 void netxen_request_firmware(struct netxen_adapter *adapter)
1234 struct pci_dev *pdev = adapter->pdev;
1237 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1240 nx_get_next_fwtype(adapter);
1242 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1245 rc = request_firmware(&adapter->fw,
1246 fw_name[adapter->fw_type], &pdev->dev);
1250 rc = netxen_validate_firmware(adapter);
1252 release_firmware(adapter->fw);
1261 netxen_release_firmware(struct netxen_adapter *adapter)
1263 release_firmware(adapter->fw);
1267 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1272 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1275 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1276 NETXEN_HOST_DUMMY_DMA_SIZE,
1277 &adapter->dummy_dma.phys_addr);
1278 if (adapter->dummy_dma.addr == NULL) {
1279 dev_err(&adapter->pdev->dev,
1280 "ERROR: Could not allocate dummy DMA memory\n");
1284 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1285 hi = (addr >> 32) & 0xffffffff;
1286 lo = addr & 0xffffffff;
1288 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1289 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1295 * NetXen DMA watchdog control:
1297 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1298 * Bit 1 : disable_request => 1 req disable dma watchdog
1299 * Bit 2 : enable_request => 1 req enable dma watchdog
1302 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1307 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1310 if (!adapter->dummy_dma.addr)
1313 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1314 if ((ctrl & 0x1) != 0) {
1315 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1317 while ((ctrl & 0x1) != 0) {
1321 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1329 pci_free_consistent(adapter->pdev,
1330 NETXEN_HOST_DUMMY_DMA_SIZE,
1331 adapter->dummy_dma.addr,
1332 adapter->dummy_dma.phys_addr);
1333 adapter->dummy_dma.addr = NULL;
1335 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1338 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1347 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1349 case PHAN_INITIALIZE_COMPLETE:
1350 case PHAN_INITIALIZE_ACK:
1352 case PHAN_INITIALIZE_FAILED:
1360 } while (--retries);
1362 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1365 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1370 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1376 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1378 if (val == PHAN_PEG_RCV_INITIALIZED)
1383 } while (--retries);
1386 printk(KERN_ERR "Receive Peg initialization not "
1387 "complete, state: 0x%x.\n", val);
1394 int netxen_init_firmware(struct netxen_adapter *adapter)
1398 err = netxen_receive_peg_ready(adapter);
1402 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1403 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1404 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1406 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1407 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1413 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1418 u8 link_status, module, duplex, autoneg;
1419 struct net_device *netdev = adapter->netdev;
1421 adapter->has_link_events = 1;
1423 cable_OUI = msg->body[1] & 0xffffffff;
1424 cable_len = (msg->body[1] >> 32) & 0xffff;
1425 link_speed = (msg->body[1] >> 48) & 0xffff;
1427 link_status = msg->body[2] & 0xff;
1428 duplex = (msg->body[2] >> 16) & 0xff;
1429 autoneg = (msg->body[2] >> 24) & 0xff;
1431 module = (msg->body[2] >> 8) & 0xff;
1432 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1433 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1434 netdev->name, cable_OUI, cable_len);
1435 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1436 printk(KERN_INFO "%s: unsupported cable length %d\n",
1437 netdev->name, cable_len);
1440 /* update link parameters */
1441 if (duplex == LINKEVENT_FULL_DUPLEX)
1442 adapter->link_duplex = DUPLEX_FULL;
1444 adapter->link_duplex = DUPLEX_HALF;
1445 adapter->module_type = module;
1446 adapter->link_autoneg = autoneg;
1447 adapter->link_speed = link_speed;
1449 netxen_advert_link_change(adapter, link_status);
1453 netxen_handle_fw_message(int desc_cnt, int index,
1454 struct nx_host_sds_ring *sds_ring)
1457 struct status_desc *desc;
1460 while (desc_cnt > 0 && i < 8) {
1461 desc = &sds_ring->desc_head[index];
1462 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1463 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1465 index = get_next_index(index, sds_ring->num_desc);
1469 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1471 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1472 netxen_handle_linkevent(sds_ring->adapter, &msg);
1480 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1481 struct nx_host_rds_ring *rds_ring,
1482 struct netxen_rx_buffer *buffer)
1484 struct sk_buff *skb;
1486 struct pci_dev *pdev = adapter->pdev;
1488 buffer->skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size);
1494 if (!adapter->ahw.cut_through)
1495 skb_reserve(skb, 2);
1497 dma = pci_map_single(pdev, skb->data,
1498 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1500 if (pci_dma_mapping_error(pdev, dma)) {
1501 dev_kfree_skb_any(skb);
1508 buffer->state = NETXEN_BUFFER_BUSY;
1513 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1514 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1516 struct netxen_rx_buffer *buffer;
1517 struct sk_buff *skb;
1519 buffer = &rds_ring->rx_buf_arr[index];
1521 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1522 PCI_DMA_FROMDEVICE);
1528 if (likely((adapter->netdev->features & NETIF_F_RXCSUM)
1529 && cksum == STATUS_CKSUM_OK)) {
1530 adapter->stats.csummed++;
1531 skb->ip_summed = CHECKSUM_UNNECESSARY;
1533 skb->ip_summed = CHECKSUM_NONE;
1537 buffer->state = NETXEN_BUFFER_FREE;
1541 static struct netxen_rx_buffer *
1542 netxen_process_rcv(struct netxen_adapter *adapter,
1543 struct nx_host_sds_ring *sds_ring,
1544 int ring, u64 sts_data0)
1546 struct net_device *netdev = adapter->netdev;
1547 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1548 struct netxen_rx_buffer *buffer;
1549 struct sk_buff *skb;
1550 struct nx_host_rds_ring *rds_ring;
1551 int index, length, cksum, pkt_offset;
1553 if (unlikely(ring >= adapter->max_rds_rings))
1556 rds_ring = &recv_ctx->rds_rings[ring];
1558 index = netxen_get_sts_refhandle(sts_data0);
1559 if (unlikely(index >= rds_ring->num_desc))
1562 buffer = &rds_ring->rx_buf_arr[index];
1564 length = netxen_get_sts_totallength(sts_data0);
1565 cksum = netxen_get_sts_status(sts_data0);
1566 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1568 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1572 if (length > rds_ring->skb_size)
1573 skb_put(skb, rds_ring->skb_size);
1575 skb_put(skb, length);
1579 skb_pull(skb, pkt_offset);
1581 skb->protocol = eth_type_trans(skb, netdev);
1583 napi_gro_receive(&sds_ring->napi, skb);
1585 adapter->stats.rx_pkts++;
1586 adapter->stats.rxbytes += length;
1591 #define TCP_HDR_SIZE 20
1592 #define TCP_TS_OPTION_SIZE 12
1593 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1595 static struct netxen_rx_buffer *
1596 netxen_process_lro(struct netxen_adapter *adapter,
1597 struct nx_host_sds_ring *sds_ring,
1598 int ring, u64 sts_data0, u64 sts_data1)
1600 struct net_device *netdev = adapter->netdev;
1601 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1602 struct netxen_rx_buffer *buffer;
1603 struct sk_buff *skb;
1604 struct nx_host_rds_ring *rds_ring;
1607 bool push, timestamp;
1608 int l2_hdr_offset, l4_hdr_offset;
1610 u16 lro_length, length, data_offset;
1614 if (unlikely(ring > adapter->max_rds_rings))
1617 rds_ring = &recv_ctx->rds_rings[ring];
1619 index = netxen_get_lro_sts_refhandle(sts_data0);
1620 if (unlikely(index > rds_ring->num_desc))
1623 buffer = &rds_ring->rx_buf_arr[index];
1625 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1626 lro_length = netxen_get_lro_sts_length(sts_data0);
1627 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1628 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1629 push = netxen_get_lro_sts_push_flag(sts_data0);
1630 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1632 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1637 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1639 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1641 skb_put(skb, lro_length + data_offset);
1643 skb_pull(skb, l2_hdr_offset);
1644 skb->protocol = eth_type_trans(skb, netdev);
1646 if (skb->protocol == htons(ETH_P_8021Q))
1647 vhdr_len = VLAN_HLEN;
1648 iph = (struct iphdr *)(skb->data + vhdr_len);
1649 th = (struct tcphdr *)((skb->data + vhdr_len) + (iph->ihl << 2));
1651 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1652 iph->tot_len = htons(length);
1654 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1656 th->seq = htonl(seq_number);
1660 if (adapter->flags & NETXEN_FW_MSS_CAP)
1661 skb_shinfo(skb)->gso_size = netxen_get_lro_sts_mss(sts_data1);
1663 netif_receive_skb(skb);
1665 adapter->stats.lro_pkts++;
1666 adapter->stats.rxbytes += length;
1671 #define netxen_merge_rx_buffers(list, head) \
1672 do { list_splice_tail_init(list, head); } while (0);
1675 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1677 struct netxen_adapter *adapter = sds_ring->adapter;
1679 struct list_head *cur;
1681 struct status_desc *desc;
1682 struct netxen_rx_buffer *rxbuf;
1684 u32 consumer = sds_ring->consumer;
1687 u64 sts_data0, sts_data1;
1688 int opcode, ring = 0, desc_cnt;
1690 while (count < max) {
1691 desc = &sds_ring->desc_head[consumer];
1692 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1694 if (!(sts_data0 & STATUS_OWNER_HOST))
1697 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1699 opcode = netxen_get_sts_opcode(sts_data0);
1702 case NETXEN_NIC_RXPKT_DESC:
1703 case NETXEN_OLD_RXPKT_DESC:
1704 case NETXEN_NIC_SYN_OFFLOAD:
1705 ring = netxen_get_sts_type(sts_data0);
1706 rxbuf = netxen_process_rcv(adapter, sds_ring,
1709 case NETXEN_NIC_LRO_DESC:
1710 ring = netxen_get_lro_sts_type(sts_data0);
1711 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1712 rxbuf = netxen_process_lro(adapter, sds_ring,
1713 ring, sts_data0, sts_data1);
1715 case NETXEN_NIC_RESPONSE_DESC:
1716 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1721 WARN_ON(desc_cnt > 1);
1724 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1727 for (; desc_cnt > 0; desc_cnt--) {
1728 desc = &sds_ring->desc_head[consumer];
1729 desc->status_desc_data[0] =
1730 cpu_to_le64(STATUS_OWNER_PHANTOM);
1731 consumer = get_next_index(consumer, sds_ring->num_desc);
1736 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1737 struct nx_host_rds_ring *rds_ring =
1738 &adapter->recv_ctx.rds_rings[ring];
1740 if (!list_empty(&sds_ring->free_list[ring])) {
1741 list_for_each(cur, &sds_ring->free_list[ring]) {
1742 rxbuf = list_entry(cur,
1743 struct netxen_rx_buffer, list);
1744 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1746 spin_lock(&rds_ring->lock);
1747 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1748 &rds_ring->free_list);
1749 spin_unlock(&rds_ring->lock);
1752 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1756 sds_ring->consumer = consumer;
1757 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1763 /* Process Command status ring */
1764 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1766 u32 sw_consumer, hw_consumer;
1768 struct netxen_cmd_buffer *buffer;
1769 struct pci_dev *pdev = adapter->pdev;
1770 struct net_device *netdev = adapter->netdev;
1771 struct netxen_skb_frag *frag;
1773 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1775 if (!spin_trylock(&adapter->tx_clean_lock))
1778 sw_consumer = tx_ring->sw_consumer;
1779 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1781 while (sw_consumer != hw_consumer) {
1782 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1784 frag = &buffer->frag_array[0];
1785 pci_unmap_single(pdev, frag->dma, frag->length,
1788 for (i = 1; i < buffer->frag_count; i++) {
1789 frag++; /* Get the next frag */
1790 pci_unmap_page(pdev, frag->dma, frag->length,
1795 adapter->stats.xmitfinished++;
1796 dev_kfree_skb_any(buffer->skb);
1800 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1801 if (++count >= MAX_STATUS_HANDLE)
1805 if (count && netif_running(netdev)) {
1806 tx_ring->sw_consumer = sw_consumer;
1810 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1811 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1812 netif_wake_queue(netdev);
1813 adapter->tx_timeo_cnt = 0;
1816 * If everything is freed up to consumer then check if the ring is full
1817 * If the ring is full then check if more needs to be freed and
1818 * schedule the call back again.
1820 * This happens when there are 2 CPUs. One could be freeing and the
1821 * other filling it. If the ring is full when we get out of here and
1822 * the card has already interrupted the host then the host can miss the
1825 * There is still a possible race condition and the host could miss an
1826 * interrupt. The card has to take care of this.
1828 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1829 done = (sw_consumer == hw_consumer);
1830 spin_unlock(&adapter->tx_clean_lock);
1836 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1837 struct nx_host_rds_ring *rds_ring)
1839 struct rcv_desc *pdesc;
1840 struct netxen_rx_buffer *buffer;
1841 int producer, count = 0;
1842 netxen_ctx_msg msg = 0;
1843 struct list_head *head;
1845 producer = rds_ring->producer;
1847 head = &rds_ring->free_list;
1848 while (!list_empty(head)) {
1850 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1853 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1858 list_del(&buffer->list);
1860 /* make a rcv descriptor */
1861 pdesc = &rds_ring->desc_head[producer];
1862 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1863 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1864 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1866 producer = get_next_index(producer, rds_ring->num_desc);
1870 rds_ring->producer = producer;
1871 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1872 (producer-1) & (rds_ring->num_desc-1));
1874 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1876 * Write a doorbell msg to tell phanmon of change in
1877 * receive ring producer
1878 * Only for firmware version < 4.0.0
1880 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1881 netxen_set_msg_privid(msg);
1882 netxen_set_msg_count(msg,
1884 (rds_ring->num_desc - 1)));
1885 netxen_set_msg_ctxid(msg, adapter->portnum);
1886 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1887 NXWRIO(adapter, DB_NORMALIZE(adapter,
1888 NETXEN_RCV_PRODUCER_OFFSET), msg);
1894 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1895 struct nx_host_rds_ring *rds_ring)
1897 struct rcv_desc *pdesc;
1898 struct netxen_rx_buffer *buffer;
1899 int producer, count = 0;
1900 struct list_head *head;
1902 if (!spin_trylock(&rds_ring->lock))
1905 producer = rds_ring->producer;
1907 head = &rds_ring->free_list;
1908 while (!list_empty(head)) {
1910 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1913 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1918 list_del(&buffer->list);
1920 /* make a rcv descriptor */
1921 pdesc = &rds_ring->desc_head[producer];
1922 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1923 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1924 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1926 producer = get_next_index(producer, rds_ring->num_desc);
1930 rds_ring->producer = producer;
1931 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1932 (producer - 1) & (rds_ring->num_desc - 1));
1934 spin_unlock(&rds_ring->lock);
1937 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1939 memset(&adapter->stats, 0, sizeof(adapter->stats));