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, see <http://www.gnu.org/licenses/>.
19 * The full GNU General Public License is included in this distribution
20 * in the file called "COPYING".
24 #include <linux/netdevice.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/if_vlan.h>
28 #include <net/checksum.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 spin_lock_bh(&adapter->tx_clean_lock);
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);
162 spin_unlock_bh(&adapter->tx_clean_lock);
165 void netxen_free_sw_resources(struct netxen_adapter *adapter)
167 struct netxen_recv_context *recv_ctx;
168 struct nx_host_rds_ring *rds_ring;
169 struct nx_host_tx_ring *tx_ring;
172 recv_ctx = &adapter->recv_ctx;
174 if (recv_ctx->rds_rings == NULL)
177 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
178 rds_ring = &recv_ctx->rds_rings[ring];
179 vfree(rds_ring->rx_buf_arr);
180 rds_ring->rx_buf_arr = NULL;
182 kfree(recv_ctx->rds_rings);
185 if (adapter->tx_ring == NULL)
188 tx_ring = adapter->tx_ring;
189 vfree(tx_ring->cmd_buf_arr);
191 adapter->tx_ring = NULL;
194 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
196 struct netxen_recv_context *recv_ctx;
197 struct nx_host_rds_ring *rds_ring;
198 struct nx_host_sds_ring *sds_ring;
199 struct nx_host_tx_ring *tx_ring;
200 struct netxen_rx_buffer *rx_buf;
203 struct netxen_cmd_buffer *cmd_buf_arr;
204 struct net_device *netdev = adapter->netdev;
206 tx_ring = kzalloc(sizeof(struct nx_host_tx_ring), GFP_KERNEL);
210 adapter->tx_ring = tx_ring;
212 tx_ring->num_desc = adapter->num_txd;
213 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
215 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
216 if (cmd_buf_arr == NULL)
219 tx_ring->cmd_buf_arr = cmd_buf_arr;
221 recv_ctx = &adapter->recv_ctx;
223 rds_ring = kcalloc(adapter->max_rds_rings,
224 sizeof(struct nx_host_rds_ring), GFP_KERNEL);
225 if (rds_ring == NULL)
228 recv_ctx->rds_rings = rds_ring;
230 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
231 rds_ring = &recv_ctx->rds_rings[ring];
233 case RCV_RING_NORMAL:
234 rds_ring->num_desc = adapter->num_rxd;
235 if (adapter->ahw.cut_through) {
237 NX_CT_DEFAULT_RX_BUF_LEN;
239 NX_CT_DEFAULT_RX_BUF_LEN;
241 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
243 NX_P3_RX_BUF_MAX_LEN;
246 NX_P2_RX_BUF_MAX_LEN;
248 rds_ring->dma_size + NET_IP_ALIGN;
253 rds_ring->num_desc = adapter->num_jumbo_rxd;
254 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
256 NX_P3_RX_JUMBO_BUF_MAX_LEN;
259 NX_P2_RX_JUMBO_BUF_MAX_LEN;
261 if (adapter->capabilities & NX_CAP0_HW_LRO)
262 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
265 rds_ring->dma_size + NET_IP_ALIGN;
269 rds_ring->num_desc = adapter->num_lro_rxd;
270 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
271 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
275 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
276 if (rds_ring->rx_buf_arr == NULL)
277 /* free whatever was already allocated */
280 INIT_LIST_HEAD(&rds_ring->free_list);
282 * Now go through all of them, set reference handles
283 * and put them in the queues.
285 rx_buf = rds_ring->rx_buf_arr;
286 for (i = 0; i < rds_ring->num_desc; i++) {
287 list_add_tail(&rx_buf->list,
288 &rds_ring->free_list);
289 rx_buf->ref_handle = i;
290 rx_buf->state = NETXEN_BUFFER_FREE;
293 spin_lock_init(&rds_ring->lock);
296 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
297 sds_ring = &recv_ctx->sds_rings[ring];
298 sds_ring->irq = adapter->msix_entries[ring].vector;
299 sds_ring->adapter = adapter;
300 sds_ring->num_desc = adapter->num_rxd;
302 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
303 INIT_LIST_HEAD(&sds_ring->free_list[i]);
309 netxen_free_sw_resources(adapter);
314 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
315 * address to external PCI CRB address.
317 static u32 netxen_decode_crb_addr(u32 addr)
320 u32 base_addr, offset, pci_base;
322 crb_addr_transform_setup();
324 pci_base = NETXEN_ADDR_ERROR;
325 base_addr = addr & 0xfff00000;
326 offset = addr & 0x000fffff;
328 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
329 if (crb_addr_xform[i] == base_addr) {
334 if (pci_base == NETXEN_ADDR_ERROR)
337 return pci_base + offset;
340 #define NETXEN_MAX_ROM_WAIT_USEC 100
342 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
350 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
352 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
353 dev_err(&adapter->pdev->dev,
354 "Timeout reached waiting for rom done");
362 static int do_rom_fast_read(struct netxen_adapter *adapter,
365 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
366 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
367 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
368 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
369 if (netxen_wait_rom_done(adapter)) {
370 printk("Error waiting for rom done\n");
373 /* reset abyte_cnt and dummy_byte_cnt */
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
378 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
382 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
383 u8 *bytes, size_t size)
388 for (addridx = addr; addridx < (addr + size); addridx += 4) {
390 ret = do_rom_fast_read(adapter, addridx, &v);
393 *(__le32 *)bytes = cpu_to_le32(v);
401 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
402 u8 *bytes, size_t size)
406 ret = netxen_rom_lock(adapter);
410 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
412 netxen_rom_unlock(adapter);
416 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
420 if (netxen_rom_lock(adapter) != 0)
423 ret = do_rom_fast_read(adapter, addr, valp);
424 netxen_rom_unlock(adapter);
428 #define NETXEN_BOARDTYPE 0x4008
429 #define NETXEN_BOARDNUM 0x400c
430 #define NETXEN_CHIPNUM 0x4010
432 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
435 int i, n, init_delay = 0;
436 struct crb_addr_pair *buf;
441 netxen_rom_lock(adapter);
442 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xfeffffff);
443 netxen_rom_unlock(adapter);
445 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
446 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
448 netxen_rom_fast_read(adapter, 4, &n) != 0) {
449 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
450 "n: %08x\n", netxen_nic_driver_name, n);
453 offset = n & 0xffffU;
454 n = (n >> 16) & 0xffffU;
456 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
458 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
459 "n: %08x\n", netxen_nic_driver_name, n);
467 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
468 " initialized.\n", __func__, n);
472 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
476 for (i = 0; i < n; i++) {
477 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
478 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
488 for (i = 0; i < n; i++) {
490 off = netxen_decode_crb_addr(buf[i].addr);
491 if (off == NETXEN_ADDR_ERROR) {
492 printk(KERN_ERR"CRB init value out of range %x\n",
496 off += NETXEN_PCI_CRBSPACE;
501 /* skipping cold reboot MAGIC */
502 if (off == NETXEN_CAM_RAM(0x1fc))
505 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
506 if (off == (NETXEN_CRB_I2C0 + 0x1c))
508 /* do not reset PCI */
509 if (off == (ROMUSB_GLB + 0xbc))
511 if (off == (ROMUSB_GLB + 0xa8))
513 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
515 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
517 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
519 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
521 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
522 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
523 buf[i].data = 0x1020;
524 /* skip the function enable register */
525 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
527 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
529 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
534 /* After writing this register, HW needs time for CRB */
535 /* to quiet down (else crb_window returns 0xffffffff) */
536 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
538 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
539 /* hold xdma in reset also */
540 buf[i].data = NETXEN_NIC_XDMA_RESET;
541 buf[i].data = 0x8000ff;
545 NXWR32(adapter, off, buf[i].data);
551 /* disable_peg_cache_all */
553 /* unreset_net_cache */
554 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
555 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
556 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
559 /* p2dn replyCount */
560 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
561 /* disable_peg_cache 0 */
562 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
563 /* disable_peg_cache 1 */
564 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
569 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
570 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
573 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
575 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
578 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
579 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
583 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
586 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
587 __le32 entries = cpu_to_le32(directory->num_entries);
589 for (i = 0; i < entries; i++) {
591 __le32 offs = cpu_to_le32(directory->findex) +
592 (i * cpu_to_le32(directory->entry_size));
593 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
595 if (tab_type == section)
596 return (struct uni_table_desc *) &unirom[offs];
602 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
605 netxen_nic_validate_header(struct netxen_adapter *adapter)
607 const u8 *unirom = adapter->fw->data;
608 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
609 u32 fw_file_size = adapter->fw->size;
614 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
617 entries = cpu_to_le32(directory->num_entries);
618 entry_size = cpu_to_le32(directory->entry_size);
619 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
621 if (fw_file_size < tab_size)
628 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
630 struct uni_table_desc *tab_desc;
631 struct uni_data_desc *descr;
632 const u8 *unirom = adapter->fw->data;
633 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
634 NX_UNI_BOOTLD_IDX_OFF));
639 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
644 tab_size = cpu_to_le32(tab_desc->findex) +
645 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
647 if (adapter->fw->size < tab_size)
650 offs = cpu_to_le32(tab_desc->findex) +
651 (cpu_to_le32(tab_desc->entry_size) * (idx));
652 descr = (struct uni_data_desc *)&unirom[offs];
654 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
656 if (adapter->fw->size < data_size)
663 netxen_nic_validate_fw(struct netxen_adapter *adapter)
665 struct uni_table_desc *tab_desc;
666 struct uni_data_desc *descr;
667 const u8 *unirom = adapter->fw->data;
668 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
669 NX_UNI_FIRMWARE_IDX_OFF));
674 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
679 tab_size = cpu_to_le32(tab_desc->findex) +
680 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
682 if (adapter->fw->size < tab_size)
685 offs = cpu_to_le32(tab_desc->findex) +
686 (cpu_to_le32(tab_desc->entry_size) * (idx));
687 descr = (struct uni_data_desc *)&unirom[offs];
688 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
690 if (adapter->fw->size < data_size)
698 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
700 struct uni_table_desc *ptab_descr;
701 const u8 *unirom = adapter->fw->data;
702 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
703 1 : netxen_p3_has_mn(adapter);
709 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
710 if (ptab_descr == NULL)
713 entries = cpu_to_le32(ptab_descr->num_entries);
714 entry_size = cpu_to_le32(ptab_descr->entry_size);
715 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
717 if (adapter->fw->size < tab_size)
721 for (i = 0; i < entries; i++) {
723 __le32 flags, file_chiprev, offs;
724 u8 chiprev = adapter->ahw.revision_id;
727 offs = cpu_to_le32(ptab_descr->findex) +
728 (i * cpu_to_le32(ptab_descr->entry_size));
729 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
730 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
731 NX_UNI_CHIP_REV_OFF));
733 flagbit = mn_present ? 1 : 2;
735 if ((chiprev == file_chiprev) &&
736 ((1ULL << flagbit) & flags)) {
737 adapter->file_prd_off = offs;
742 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
751 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
753 if (netxen_nic_validate_header(adapter)) {
754 dev_err(&adapter->pdev->dev,
755 "unified image: header validation failed\n");
759 if (netxen_nic_validate_product_offs(adapter)) {
760 dev_err(&adapter->pdev->dev,
761 "unified image: product validation failed\n");
765 if (netxen_nic_validate_bootld(adapter)) {
766 dev_err(&adapter->pdev->dev,
767 "unified image: bootld validation failed\n");
771 if (netxen_nic_validate_fw(adapter)) {
772 dev_err(&adapter->pdev->dev,
773 "unified image: firmware validation failed\n");
780 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
781 u32 section, u32 idx_offset)
783 const u8 *unirom = adapter->fw->data;
784 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
786 struct uni_table_desc *tab_desc;
789 tab_desc = nx_get_table_desc(unirom, section);
791 if (tab_desc == NULL)
794 offs = cpu_to_le32(tab_desc->findex) +
795 (cpu_to_le32(tab_desc->entry_size) * idx);
797 return (struct uni_data_desc *)&unirom[offs];
801 nx_get_bootld_offs(struct netxen_adapter *adapter)
803 u32 offs = NETXEN_BOOTLD_START;
805 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
806 offs = cpu_to_le32((nx_get_data_desc(adapter,
807 NX_UNI_DIR_SECT_BOOTLD,
808 NX_UNI_BOOTLD_IDX_OFF))->findex);
810 return (u8 *)&adapter->fw->data[offs];
814 nx_get_fw_offs(struct netxen_adapter *adapter)
816 u32 offs = NETXEN_IMAGE_START;
818 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
819 offs = cpu_to_le32((nx_get_data_desc(adapter,
821 NX_UNI_FIRMWARE_IDX_OFF))->findex);
823 return (u8 *)&adapter->fw->data[offs];
827 nx_get_fw_size(struct netxen_adapter *adapter)
829 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
830 return cpu_to_le32((nx_get_data_desc(adapter,
832 NX_UNI_FIRMWARE_IDX_OFF))->size);
835 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
839 nx_get_fw_version(struct netxen_adapter *adapter)
841 struct uni_data_desc *fw_data_desc;
842 const struct firmware *fw = adapter->fw;
843 __le32 major, minor, sub;
847 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
849 fw_data_desc = nx_get_data_desc(adapter,
850 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
851 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
852 cpu_to_le32(fw_data_desc->size) - 17;
854 for (i = 0; i < 12; i++) {
855 if (!strncmp(&ver_str[i], "REV=", 4)) {
856 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
857 &major, &minor, &sub);
865 return major + (minor << 8) + (sub << 16);
868 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
872 nx_get_bios_version(struct netxen_adapter *adapter)
874 const struct firmware *fw = adapter->fw;
875 __le32 bios_ver, prd_off = adapter->file_prd_off;
877 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
878 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
879 + NX_UNI_BIOS_VERSION_OFF));
880 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
883 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
888 netxen_need_fw_reset(struct netxen_adapter *adapter)
890 u32 count, old_count;
891 u32 val, version, major, minor, build;
895 /* NX2031 firmware doesn't support heartbit */
896 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
899 if (adapter->need_fw_reset)
902 /* last attempt had failed */
903 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
906 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
908 for (i = 0; i < 10; i++) {
910 timeout = msleep_interruptible(200);
912 NXWR32(adapter, CRB_CMDPEG_STATE,
913 PHAN_INITIALIZE_FAILED);
917 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
918 if (count != old_count)
922 /* firmware is dead */
923 if (count == old_count)
926 /* check if we have got newer or different file firmware */
929 val = nx_get_fw_version(adapter);
931 version = NETXEN_DECODE_VERSION(val);
933 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
934 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
935 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
937 if (version > NETXEN_VERSION_CODE(major, minor, build))
940 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
941 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
943 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
944 fw_type = (val & 0x4) ?
945 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
947 if (adapter->fw_type != fw_type)
955 #define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505)
958 netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
960 u32 flash_fw_ver, min_fw_ver;
962 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
965 if (netxen_rom_fast_read(adapter,
966 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
967 dev_err(&adapter->pdev->dev, "Unable to read flash fw"
972 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
973 min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
974 if (flash_fw_ver >= min_fw_ver)
977 dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
978 "[4.0.505]. Please update firmware on flash\n",
979 _major(flash_fw_ver), _minor(flash_fw_ver),
980 _build(flash_fw_ver));
984 static char *fw_name[] = {
985 NX_P2_MN_ROMIMAGE_NAME,
986 NX_P3_CT_ROMIMAGE_NAME,
987 NX_P3_MN_ROMIMAGE_NAME,
988 NX_UNIFIED_ROMIMAGE_NAME,
989 NX_FLASH_ROMIMAGE_NAME,
993 netxen_load_firmware(struct netxen_adapter *adapter)
996 u32 i, flashaddr, size;
997 const struct firmware *fw = adapter->fw;
998 struct pci_dev *pdev = adapter->pdev;
1000 dev_info(&pdev->dev, "loading firmware from %s\n",
1001 fw_name[adapter->fw_type]);
1003 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1004 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
1009 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1011 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
1012 flashaddr = NETXEN_BOOTLD_START;
1014 for (i = 0; i < size; i++) {
1015 data = cpu_to_le64(ptr64[i]);
1017 if (adapter->pci_mem_write(adapter, flashaddr, data))
1023 size = (__force u32)nx_get_fw_size(adapter) / 8;
1025 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1026 flashaddr = NETXEN_IMAGE_START;
1028 for (i = 0; i < size; i++) {
1029 data = cpu_to_le64(ptr64[i]);
1031 if (adapter->pci_mem_write(adapter,
1038 size = (__force u32)nx_get_fw_size(adapter) % 8;
1040 data = cpu_to_le64(ptr64[i]);
1042 if (adapter->pci_mem_write(adapter,
1051 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1052 flashaddr = NETXEN_BOOTLD_START;
1054 for (i = 0; i < size; i++) {
1055 if (netxen_rom_fast_read(adapter,
1056 flashaddr, (int *)&lo) != 0)
1058 if (netxen_rom_fast_read(adapter,
1059 flashaddr + 4, (int *)&hi) != 0)
1062 /* hi, lo are already in host endian byteorder */
1063 data = (((u64)hi << 32) | lo);
1065 if (adapter->pci_mem_write(adapter,
1074 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1075 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1076 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1077 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1078 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1080 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1081 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1088 netxen_validate_firmware(struct netxen_adapter *adapter)
1091 __le32 flash_fw_ver;
1092 u32 file_fw_ver, min_ver, bios;
1093 struct pci_dev *pdev = adapter->pdev;
1094 const struct firmware *fw = adapter->fw;
1095 u8 fw_type = adapter->fw_type;
1098 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1099 if (netxen_nic_validate_unified_romimage(adapter))
1102 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1103 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1106 if (fw->size < NX_FW_MIN_SIZE)
1110 val = nx_get_fw_version(adapter);
1112 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1113 min_ver = NETXEN_MIN_P3_FW_SUPP;
1115 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1117 file_fw_ver = NETXEN_DECODE_VERSION(val);
1119 if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
1120 (file_fw_ver < min_ver)) {
1122 "%s: firmware version %d.%d.%d unsupported\n",
1123 fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
1124 _build(file_fw_ver));
1127 val = nx_get_bios_version(adapter);
1128 if (netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios))
1130 if ((__force u32)val != bios) {
1131 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1136 if (netxen_rom_fast_read(adapter,
1137 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
1138 dev_err(&pdev->dev, "Unable to read flash fw version\n");
1141 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
1143 /* New fw from file is not allowed, if fw on flash is < 4.0.554 */
1144 crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
1145 if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
1146 NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1147 dev_err(&pdev->dev, "Incompatibility detected between driver "
1148 "and firmware version on flash. This configuration "
1149 "is not recommended. Please update the firmware on "
1150 "flash immediately\n");
1154 /* check if flashed firmware is newer only for no-mn and P2 case*/
1155 if (!netxen_p3_has_mn(adapter) ||
1156 NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1157 if (flash_fw_ver > file_fw_ver) {
1158 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1164 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1169 nx_get_next_fwtype(struct netxen_adapter *adapter)
1173 switch (adapter->fw_type) {
1174 case NX_UNKNOWN_ROMIMAGE:
1175 fw_type = NX_UNIFIED_ROMIMAGE;
1178 case NX_UNIFIED_ROMIMAGE:
1179 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1180 fw_type = NX_FLASH_ROMIMAGE;
1181 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1182 fw_type = NX_P2_MN_ROMIMAGE;
1183 else if (netxen_p3_has_mn(adapter))
1184 fw_type = NX_P3_MN_ROMIMAGE;
1186 fw_type = NX_P3_CT_ROMIMAGE;
1189 case NX_P3_MN_ROMIMAGE:
1190 fw_type = NX_P3_CT_ROMIMAGE;
1193 case NX_P2_MN_ROMIMAGE:
1194 case NX_P3_CT_ROMIMAGE:
1196 fw_type = NX_FLASH_ROMIMAGE;
1200 adapter->fw_type = fw_type;
1204 netxen_p3_has_mn(struct netxen_adapter *adapter)
1206 u32 capability, flashed_ver;
1209 /* NX2031 always had MN */
1210 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1213 netxen_rom_fast_read(adapter,
1214 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1215 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1217 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1219 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1220 if (capability & NX_PEG_TUNE_MN_PRESENT)
1226 void netxen_request_firmware(struct netxen_adapter *adapter)
1228 struct pci_dev *pdev = adapter->pdev;
1231 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1234 nx_get_next_fwtype(adapter);
1236 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1239 rc = reject_firmware(&adapter->fw,
1240 fw_name[adapter->fw_type], &pdev->dev);
1244 rc = netxen_validate_firmware(adapter);
1246 release_firmware(adapter->fw);
1255 netxen_release_firmware(struct netxen_adapter *adapter)
1257 release_firmware(adapter->fw);
1261 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1266 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1269 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1270 NETXEN_HOST_DUMMY_DMA_SIZE,
1271 &adapter->dummy_dma.phys_addr);
1272 if (adapter->dummy_dma.addr == NULL) {
1273 dev_err(&adapter->pdev->dev,
1274 "ERROR: Could not allocate dummy DMA memory\n");
1278 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1279 hi = (addr >> 32) & 0xffffffff;
1280 lo = addr & 0xffffffff;
1282 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1283 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1289 * NetXen DMA watchdog control:
1291 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1292 * Bit 1 : disable_request => 1 req disable dma watchdog
1293 * Bit 2 : enable_request => 1 req enable dma watchdog
1296 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1301 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1304 if (!adapter->dummy_dma.addr)
1307 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1308 if ((ctrl & 0x1) != 0) {
1309 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1311 while ((ctrl & 0x1) != 0) {
1315 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1323 pci_free_consistent(adapter->pdev,
1324 NETXEN_HOST_DUMMY_DMA_SIZE,
1325 adapter->dummy_dma.addr,
1326 adapter->dummy_dma.phys_addr);
1327 adapter->dummy_dma.addr = NULL;
1329 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1332 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1341 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1343 case PHAN_INITIALIZE_COMPLETE:
1344 case PHAN_INITIALIZE_ACK:
1346 case PHAN_INITIALIZE_FAILED:
1354 } while (--retries);
1356 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1359 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1364 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1370 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1372 if (val == PHAN_PEG_RCV_INITIALIZED)
1377 } while (--retries);
1380 printk(KERN_ERR "Receive Peg initialization not "
1381 "complete, state: 0x%x.\n", val);
1388 int netxen_init_firmware(struct netxen_adapter *adapter)
1392 err = netxen_receive_peg_ready(adapter);
1396 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1397 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1398 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1400 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1401 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1407 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1412 u8 link_status, module, duplex, autoneg;
1413 struct net_device *netdev = adapter->netdev;
1415 adapter->has_link_events = 1;
1417 cable_OUI = msg->body[1] & 0xffffffff;
1418 cable_len = (msg->body[1] >> 32) & 0xffff;
1419 link_speed = (msg->body[1] >> 48) & 0xffff;
1421 link_status = msg->body[2] & 0xff;
1422 duplex = (msg->body[2] >> 16) & 0xff;
1423 autoneg = (msg->body[2] >> 24) & 0xff;
1425 module = (msg->body[2] >> 8) & 0xff;
1426 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1427 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1428 netdev->name, cable_OUI, cable_len);
1429 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1430 printk(KERN_INFO "%s: unsupported cable length %d\n",
1431 netdev->name, cable_len);
1434 /* update link parameters */
1435 if (duplex == LINKEVENT_FULL_DUPLEX)
1436 adapter->link_duplex = DUPLEX_FULL;
1438 adapter->link_duplex = DUPLEX_HALF;
1439 adapter->module_type = module;
1440 adapter->link_autoneg = autoneg;
1441 adapter->link_speed = link_speed;
1443 netxen_advert_link_change(adapter, link_status);
1447 netxen_handle_fw_message(int desc_cnt, int index,
1448 struct nx_host_sds_ring *sds_ring)
1451 struct status_desc *desc;
1454 while (desc_cnt > 0 && i < 8) {
1455 desc = &sds_ring->desc_head[index];
1456 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1457 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1459 index = get_next_index(index, sds_ring->num_desc);
1463 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1465 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1466 netxen_handle_linkevent(sds_ring->adapter, &msg);
1474 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1475 struct nx_host_rds_ring *rds_ring,
1476 struct netxen_rx_buffer *buffer)
1478 struct sk_buff *skb;
1480 struct pci_dev *pdev = adapter->pdev;
1482 buffer->skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size);
1488 if (!adapter->ahw.cut_through)
1489 skb_reserve(skb, 2);
1491 dma = pci_map_single(pdev, skb->data,
1492 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1494 if (pci_dma_mapping_error(pdev, dma)) {
1495 dev_kfree_skb_any(skb);
1502 buffer->state = NETXEN_BUFFER_BUSY;
1507 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1508 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1510 struct netxen_rx_buffer *buffer;
1511 struct sk_buff *skb;
1513 buffer = &rds_ring->rx_buf_arr[index];
1515 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1516 PCI_DMA_FROMDEVICE);
1522 if (likely((adapter->netdev->features & NETIF_F_RXCSUM)
1523 && cksum == STATUS_CKSUM_OK)) {
1524 adapter->stats.csummed++;
1525 skb->ip_summed = CHECKSUM_UNNECESSARY;
1527 skb->ip_summed = CHECKSUM_NONE;
1531 buffer->state = NETXEN_BUFFER_FREE;
1535 static struct netxen_rx_buffer *
1536 netxen_process_rcv(struct netxen_adapter *adapter,
1537 struct nx_host_sds_ring *sds_ring,
1538 int ring, u64 sts_data0)
1540 struct net_device *netdev = adapter->netdev;
1541 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1542 struct netxen_rx_buffer *buffer;
1543 struct sk_buff *skb;
1544 struct nx_host_rds_ring *rds_ring;
1545 int index, length, cksum, pkt_offset;
1547 if (unlikely(ring >= adapter->max_rds_rings))
1550 rds_ring = &recv_ctx->rds_rings[ring];
1552 index = netxen_get_sts_refhandle(sts_data0);
1553 if (unlikely(index >= rds_ring->num_desc))
1556 buffer = &rds_ring->rx_buf_arr[index];
1558 length = netxen_get_sts_totallength(sts_data0);
1559 cksum = netxen_get_sts_status(sts_data0);
1560 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1562 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1566 if (length > rds_ring->skb_size)
1567 skb_put(skb, rds_ring->skb_size);
1569 skb_put(skb, length);
1573 skb_pull(skb, pkt_offset);
1575 skb->protocol = eth_type_trans(skb, netdev);
1577 napi_gro_receive(&sds_ring->napi, skb);
1579 adapter->stats.rx_pkts++;
1580 adapter->stats.rxbytes += length;
1585 #define TCP_HDR_SIZE 20
1586 #define TCP_TS_OPTION_SIZE 12
1587 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1589 static struct netxen_rx_buffer *
1590 netxen_process_lro(struct netxen_adapter *adapter,
1591 struct nx_host_sds_ring *sds_ring,
1592 int ring, u64 sts_data0, u64 sts_data1)
1594 struct net_device *netdev = adapter->netdev;
1595 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1596 struct netxen_rx_buffer *buffer;
1597 struct sk_buff *skb;
1598 struct nx_host_rds_ring *rds_ring;
1601 bool push, timestamp;
1602 int l2_hdr_offset, l4_hdr_offset;
1604 u16 lro_length, length, data_offset;
1608 if (unlikely(ring >= adapter->max_rds_rings))
1611 rds_ring = &recv_ctx->rds_rings[ring];
1613 index = netxen_get_lro_sts_refhandle(sts_data0);
1614 if (unlikely(index >= rds_ring->num_desc))
1617 buffer = &rds_ring->rx_buf_arr[index];
1619 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1620 lro_length = netxen_get_lro_sts_length(sts_data0);
1621 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1622 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1623 push = netxen_get_lro_sts_push_flag(sts_data0);
1624 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1626 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1631 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1633 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1635 skb_put(skb, lro_length + data_offset);
1637 skb_pull(skb, l2_hdr_offset);
1638 skb->protocol = eth_type_trans(skb, netdev);
1640 if (skb->protocol == htons(ETH_P_8021Q))
1641 vhdr_len = VLAN_HLEN;
1642 iph = (struct iphdr *)(skb->data + vhdr_len);
1643 th = (struct tcphdr *)((skb->data + vhdr_len) + (iph->ihl << 2));
1645 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1646 csum_replace2(&iph->check, iph->tot_len, htons(length));
1647 iph->tot_len = htons(length);
1649 th->seq = htonl(seq_number);
1653 if (adapter->flags & NETXEN_FW_MSS_CAP)
1654 skb_shinfo(skb)->gso_size = netxen_get_lro_sts_mss(sts_data1);
1656 netif_receive_skb(skb);
1658 adapter->stats.lro_pkts++;
1659 adapter->stats.rxbytes += length;
1664 #define netxen_merge_rx_buffers(list, head) \
1665 do { list_splice_tail_init(list, head); } while (0);
1668 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1670 struct netxen_adapter *adapter = sds_ring->adapter;
1672 struct list_head *cur;
1674 struct status_desc *desc;
1675 struct netxen_rx_buffer *rxbuf;
1677 u32 consumer = sds_ring->consumer;
1680 u64 sts_data0, sts_data1;
1681 int opcode, ring = 0, desc_cnt;
1683 while (count < max) {
1684 desc = &sds_ring->desc_head[consumer];
1685 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1687 if (!(sts_data0 & STATUS_OWNER_HOST))
1690 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1692 opcode = netxen_get_sts_opcode(sts_data0);
1695 case NETXEN_NIC_RXPKT_DESC:
1696 case NETXEN_OLD_RXPKT_DESC:
1697 case NETXEN_NIC_SYN_OFFLOAD:
1698 ring = netxen_get_sts_type(sts_data0);
1699 rxbuf = netxen_process_rcv(adapter, sds_ring,
1702 case NETXEN_NIC_LRO_DESC:
1703 ring = netxen_get_lro_sts_type(sts_data0);
1704 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1705 rxbuf = netxen_process_lro(adapter, sds_ring,
1706 ring, sts_data0, sts_data1);
1708 case NETXEN_NIC_RESPONSE_DESC:
1709 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1714 WARN_ON(desc_cnt > 1);
1717 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1720 for (; desc_cnt > 0; desc_cnt--) {
1721 desc = &sds_ring->desc_head[consumer];
1722 desc->status_desc_data[0] =
1723 cpu_to_le64(STATUS_OWNER_PHANTOM);
1724 consumer = get_next_index(consumer, sds_ring->num_desc);
1729 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1730 struct nx_host_rds_ring *rds_ring =
1731 &adapter->recv_ctx.rds_rings[ring];
1733 if (!list_empty(&sds_ring->free_list[ring])) {
1734 list_for_each(cur, &sds_ring->free_list[ring]) {
1735 rxbuf = list_entry(cur,
1736 struct netxen_rx_buffer, list);
1737 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1739 spin_lock(&rds_ring->lock);
1740 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1741 &rds_ring->free_list);
1742 spin_unlock(&rds_ring->lock);
1745 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1749 sds_ring->consumer = consumer;
1750 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1756 /* Process Command status ring */
1757 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1759 u32 sw_consumer, hw_consumer;
1761 struct netxen_cmd_buffer *buffer;
1762 struct pci_dev *pdev = adapter->pdev;
1763 struct net_device *netdev = adapter->netdev;
1764 struct netxen_skb_frag *frag;
1766 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1768 if (!spin_trylock_bh(&adapter->tx_clean_lock))
1771 sw_consumer = tx_ring->sw_consumer;
1772 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1774 while (sw_consumer != hw_consumer) {
1775 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1777 frag = &buffer->frag_array[0];
1778 pci_unmap_single(pdev, frag->dma, frag->length,
1781 for (i = 1; i < buffer->frag_count; i++) {
1782 frag++; /* Get the next frag */
1783 pci_unmap_page(pdev, frag->dma, frag->length,
1788 adapter->stats.xmitfinished++;
1789 dev_kfree_skb_any(buffer->skb);
1793 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1794 if (++count >= MAX_STATUS_HANDLE)
1798 tx_ring->sw_consumer = sw_consumer;
1800 if (count && netif_running(netdev)) {
1803 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1804 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1805 netif_wake_queue(netdev);
1806 adapter->tx_timeo_cnt = 0;
1809 * If everything is freed up to consumer then check if the ring is full
1810 * If the ring is full then check if more needs to be freed and
1811 * schedule the call back again.
1813 * This happens when there are 2 CPUs. One could be freeing and the
1814 * other filling it. If the ring is full when we get out of here and
1815 * the card has already interrupted the host then the host can miss the
1818 * There is still a possible race condition and the host could miss an
1819 * interrupt. The card has to take care of this.
1821 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1822 done = (sw_consumer == hw_consumer);
1823 spin_unlock_bh(&adapter->tx_clean_lock);
1829 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1830 struct nx_host_rds_ring *rds_ring)
1832 struct rcv_desc *pdesc;
1833 struct netxen_rx_buffer *buffer;
1834 int producer, count = 0;
1835 netxen_ctx_msg msg = 0;
1836 struct list_head *head;
1838 producer = rds_ring->producer;
1840 head = &rds_ring->free_list;
1841 while (!list_empty(head)) {
1843 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1846 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1851 list_del(&buffer->list);
1853 /* make a rcv descriptor */
1854 pdesc = &rds_ring->desc_head[producer];
1855 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1856 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1857 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1859 producer = get_next_index(producer, rds_ring->num_desc);
1863 rds_ring->producer = producer;
1864 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1865 (producer-1) & (rds_ring->num_desc-1));
1867 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1869 * Write a doorbell msg to tell phanmon of change in
1870 * receive ring producer
1871 * Only for firmware version < 4.0.0
1873 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1874 netxen_set_msg_privid(msg);
1875 netxen_set_msg_count(msg,
1877 (rds_ring->num_desc - 1)));
1878 netxen_set_msg_ctxid(msg, adapter->portnum);
1879 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1880 NXWRIO(adapter, DB_NORMALIZE(adapter,
1881 NETXEN_RCV_PRODUCER_OFFSET), msg);
1887 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1888 struct nx_host_rds_ring *rds_ring)
1890 struct rcv_desc *pdesc;
1891 struct netxen_rx_buffer *buffer;
1892 int producer, count = 0;
1893 struct list_head *head;
1895 if (!spin_trylock(&rds_ring->lock))
1898 producer = rds_ring->producer;
1900 head = &rds_ring->free_list;
1901 while (!list_empty(head)) {
1903 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1906 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1911 list_del(&buffer->list);
1913 /* make a rcv descriptor */
1914 pdesc = &rds_ring->desc_head[producer];
1915 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1916 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1917 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1919 producer = get_next_index(producer, rds_ring->num_desc);
1923 rds_ring->producer = producer;
1924 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1925 (producer - 1) & (rds_ring->num_desc - 1));
1927 spin_unlock(&rds_ring->lock);
1930 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1932 memset(&adapter->stats, 0, sizeof(adapter->stats));