2 * Copyright (C) 2009 - QLogic Corporation.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called "COPYING".
25 #include <linux/netdevice.h>
26 #include <linux/delay.h>
27 #include <linux/slab.h>
30 struct crb_addr_pair {
35 #define QLCNIC_MAX_CRB_XFORM 60
36 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
38 #define crb_addr_transform(name) \
39 (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
40 QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
42 #define QLCNIC_ADDR_ERROR (0xffffffff)
45 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
46 struct qlcnic_host_rds_ring *rds_ring);
48 static void crb_addr_transform_setup(void)
50 crb_addr_transform(XDMA);
51 crb_addr_transform(TIMR);
52 crb_addr_transform(SRE);
53 crb_addr_transform(SQN3);
54 crb_addr_transform(SQN2);
55 crb_addr_transform(SQN1);
56 crb_addr_transform(SQN0);
57 crb_addr_transform(SQS3);
58 crb_addr_transform(SQS2);
59 crb_addr_transform(SQS1);
60 crb_addr_transform(SQS0);
61 crb_addr_transform(RPMX7);
62 crb_addr_transform(RPMX6);
63 crb_addr_transform(RPMX5);
64 crb_addr_transform(RPMX4);
65 crb_addr_transform(RPMX3);
66 crb_addr_transform(RPMX2);
67 crb_addr_transform(RPMX1);
68 crb_addr_transform(RPMX0);
69 crb_addr_transform(ROMUSB);
70 crb_addr_transform(SN);
71 crb_addr_transform(QMN);
72 crb_addr_transform(QMS);
73 crb_addr_transform(PGNI);
74 crb_addr_transform(PGND);
75 crb_addr_transform(PGN3);
76 crb_addr_transform(PGN2);
77 crb_addr_transform(PGN1);
78 crb_addr_transform(PGN0);
79 crb_addr_transform(PGSI);
80 crb_addr_transform(PGSD);
81 crb_addr_transform(PGS3);
82 crb_addr_transform(PGS2);
83 crb_addr_transform(PGS1);
84 crb_addr_transform(PGS0);
85 crb_addr_transform(PS);
86 crb_addr_transform(PH);
87 crb_addr_transform(NIU);
88 crb_addr_transform(I2Q);
89 crb_addr_transform(EG);
90 crb_addr_transform(MN);
91 crb_addr_transform(MS);
92 crb_addr_transform(CAS2);
93 crb_addr_transform(CAS1);
94 crb_addr_transform(CAS0);
95 crb_addr_transform(CAM);
96 crb_addr_transform(C2C1);
97 crb_addr_transform(C2C0);
98 crb_addr_transform(SMB);
99 crb_addr_transform(OCM0);
100 crb_addr_transform(I2C0);
103 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
105 struct qlcnic_recv_context *recv_ctx;
106 struct qlcnic_host_rds_ring *rds_ring;
107 struct qlcnic_rx_buffer *rx_buf;
110 recv_ctx = &adapter->recv_ctx;
111 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
112 rds_ring = &recv_ctx->rds_rings[ring];
113 for (i = 0; i < rds_ring->num_desc; ++i) {
114 rx_buf = &(rds_ring->rx_buf_arr[i]);
115 if (rx_buf->state == QLCNIC_BUFFER_FREE)
117 pci_unmap_single(adapter->pdev,
121 if (rx_buf->skb != NULL)
122 dev_kfree_skb_any(rx_buf->skb);
127 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
129 struct qlcnic_cmd_buffer *cmd_buf;
130 struct qlcnic_skb_frag *buffrag;
132 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
134 cmd_buf = tx_ring->cmd_buf_arr;
135 for (i = 0; i < tx_ring->num_desc; i++) {
136 buffrag = cmd_buf->frag_array;
138 pci_unmap_single(adapter->pdev, buffrag->dma,
139 buffrag->length, PCI_DMA_TODEVICE);
142 for (j = 0; j < cmd_buf->frag_count; j++) {
145 pci_unmap_page(adapter->pdev, buffrag->dma,
152 dev_kfree_skb_any(cmd_buf->skb);
159 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
161 struct qlcnic_recv_context *recv_ctx;
162 struct qlcnic_host_rds_ring *rds_ring;
163 struct qlcnic_host_tx_ring *tx_ring;
166 recv_ctx = &adapter->recv_ctx;
168 if (recv_ctx->rds_rings == NULL)
171 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
172 rds_ring = &recv_ctx->rds_rings[ring];
173 vfree(rds_ring->rx_buf_arr);
174 rds_ring->rx_buf_arr = NULL;
176 kfree(recv_ctx->rds_rings);
179 if (adapter->tx_ring == NULL)
182 tx_ring = adapter->tx_ring;
183 vfree(tx_ring->cmd_buf_arr);
184 kfree(adapter->tx_ring);
187 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
189 struct qlcnic_recv_context *recv_ctx;
190 struct qlcnic_host_rds_ring *rds_ring;
191 struct qlcnic_host_sds_ring *sds_ring;
192 struct qlcnic_host_tx_ring *tx_ring;
193 struct qlcnic_rx_buffer *rx_buf;
196 struct qlcnic_cmd_buffer *cmd_buf_arr;
197 struct net_device *netdev = adapter->netdev;
199 size = sizeof(struct qlcnic_host_tx_ring);
200 tx_ring = kzalloc(size, GFP_KERNEL);
201 if (tx_ring == NULL) {
202 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
205 adapter->tx_ring = tx_ring;
207 tx_ring->num_desc = adapter->num_txd;
208 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
210 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
211 if (cmd_buf_arr == NULL) {
212 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
215 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
216 tx_ring->cmd_buf_arr = cmd_buf_arr;
218 recv_ctx = &adapter->recv_ctx;
220 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
221 rds_ring = kzalloc(size, GFP_KERNEL);
222 if (rds_ring == NULL) {
223 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
226 recv_ctx->rds_rings = rds_ring;
228 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
229 rds_ring = &recv_ctx->rds_rings[ring];
231 case RCV_RING_NORMAL:
232 rds_ring->num_desc = adapter->num_rxd;
233 if (adapter->ahw.cut_through) {
235 QLCNIC_CT_DEFAULT_RX_BUF_LEN;
237 QLCNIC_CT_DEFAULT_RX_BUF_LEN;
240 QLCNIC_P3_RX_BUF_MAX_LEN;
242 rds_ring->dma_size + NET_IP_ALIGN;
247 rds_ring->num_desc = adapter->num_jumbo_rxd;
249 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
251 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
252 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
255 rds_ring->dma_size + NET_IP_ALIGN;
259 rds_ring->num_desc = adapter->num_lro_rxd;
260 rds_ring->dma_size = QLCNIC_RX_LRO_BUFFER_LENGTH;
261 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
265 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
266 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
267 if (rds_ring->rx_buf_arr == NULL) {
268 dev_err(&netdev->dev, "Failed to allocate "
269 "rx buffer ring %d\n", ring);
272 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
273 INIT_LIST_HEAD(&rds_ring->free_list);
275 * Now go through all of them, set reference handles
276 * and put them in the queues.
278 rx_buf = rds_ring->rx_buf_arr;
279 for (i = 0; i < rds_ring->num_desc; i++) {
280 list_add_tail(&rx_buf->list,
281 &rds_ring->free_list);
282 rx_buf->ref_handle = i;
283 rx_buf->state = QLCNIC_BUFFER_FREE;
286 spin_lock_init(&rds_ring->lock);
289 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
290 sds_ring = &recv_ctx->sds_rings[ring];
291 sds_ring->irq = adapter->msix_entries[ring].vector;
292 sds_ring->adapter = adapter;
293 sds_ring->num_desc = adapter->num_rxd;
295 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
296 INIT_LIST_HEAD(&sds_ring->free_list[i]);
302 qlcnic_free_sw_resources(adapter);
307 * Utility to translate from internal Phantom CRB address
308 * to external PCI CRB address.
310 static u32 qlcnic_decode_crb_addr(u32 addr)
313 u32 base_addr, offset, pci_base;
315 crb_addr_transform_setup();
317 pci_base = QLCNIC_ADDR_ERROR;
318 base_addr = addr & 0xfff00000;
319 offset = addr & 0x000fffff;
321 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
322 if (crb_addr_xform[i] == base_addr) {
327 if (pci_base == QLCNIC_ADDR_ERROR)
330 return pci_base + offset;
333 #define QLCNIC_MAX_ROM_WAIT_USEC 100
335 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
343 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
345 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
346 dev_err(&adapter->pdev->dev,
347 "Timeout reached waiting for rom done");
355 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
358 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
359 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
360 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
361 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
362 if (qlcnic_wait_rom_done(adapter)) {
363 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
366 /* reset abyte_cnt and dummy_byte_cnt */
367 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
369 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
371 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
375 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
376 u8 *bytes, size_t size)
381 for (addridx = addr; addridx < (addr + size); addridx += 4) {
383 ret = do_rom_fast_read(adapter, addridx, &v);
386 *(__le32 *)bytes = cpu_to_le32(v);
394 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
395 u8 *bytes, size_t size)
399 ret = qlcnic_rom_lock(adapter);
403 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
405 qlcnic_rom_unlock(adapter);
409 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
413 if (qlcnic_rom_lock(adapter) != 0)
416 ret = do_rom_fast_read(adapter, addr, valp);
417 qlcnic_rom_unlock(adapter);
421 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
424 int i, n, init_delay;
425 struct crb_addr_pair *buf;
428 struct pci_dev *pdev = adapter->pdev;
431 qlcnic_rom_lock(adapter);
432 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xffffffff);
433 qlcnic_rom_unlock(adapter);
435 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
436 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
437 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
440 offset = n & 0xffffU;
441 n = (n >> 16) & 0xffffU;
444 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
448 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
450 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
454 for (i = 0; i < n; i++) {
455 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
456 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
465 for (i = 0; i < n; i++) {
467 off = qlcnic_decode_crb_addr(buf[i].addr);
468 if (off == QLCNIC_ADDR_ERROR) {
469 dev_err(&pdev->dev, "CRB init value out of range %x\n",
473 off += QLCNIC_PCI_CRBSPACE;
478 /* skipping cold reboot MAGIC */
479 if (off == QLCNIC_CAM_RAM(0x1fc))
481 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
483 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
485 if (off == (ROMUSB_GLB + 0xa8))
487 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
489 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
491 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
493 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
495 /* skip the function enable register */
496 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
498 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
500 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
504 /* After writing this register, HW needs time for CRB */
505 /* to quiet down (else crb_window returns 0xffffffff) */
506 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
509 QLCWR32(adapter, off, buf[i].data);
515 /* p2dn replyCount */
516 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
517 /* disable_peg_cache 0 & 1*/
518 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
519 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
522 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
523 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
524 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
525 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
526 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
527 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
528 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
529 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
534 qlcnic_has_mn(struct qlcnic_adapter *adapter)
536 u32 capability, flashed_ver;
539 qlcnic_rom_fast_read(adapter,
540 QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver);
541 flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver);
543 if (flashed_ver >= QLCNIC_VERSION_CODE(4, 0, 220)) {
545 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
546 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
553 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
556 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
557 __le32 entries = cpu_to_le32(directory->num_entries);
559 for (i = 0; i < entries; i++) {
561 __le32 offs = cpu_to_le32(directory->findex) +
562 (i * cpu_to_le32(directory->entry_size));
563 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
565 if (tab_type == section)
566 return (struct uni_table_desc *) &unirom[offs];
572 #define FILEHEADER_SIZE (14 * 4)
575 qlcnic_validate_header(struct qlcnic_adapter *adapter)
577 const u8 *unirom = adapter->fw->data;
578 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
579 __le32 fw_file_size = adapter->fw->size;
584 if (fw_file_size < FILEHEADER_SIZE)
587 entries = cpu_to_le32(directory->num_entries);
588 entry_size = cpu_to_le32(directory->entry_size);
589 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
591 if (fw_file_size < tab_size)
598 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
600 struct uni_table_desc *tab_desc;
601 struct uni_data_desc *descr;
602 const u8 *unirom = adapter->fw->data;
603 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
604 QLCNIC_UNI_BOOTLD_IDX_OFF));
609 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
614 tab_size = cpu_to_le32(tab_desc->findex) +
615 (cpu_to_le32(tab_desc->entry_size * (idx + 1)));
617 if (adapter->fw->size < tab_size)
620 offs = cpu_to_le32(tab_desc->findex) +
621 (cpu_to_le32(tab_desc->entry_size) * (idx));
622 descr = (struct uni_data_desc *)&unirom[offs];
624 data_size = descr->findex + cpu_to_le32(descr->size);
626 if (adapter->fw->size < data_size)
633 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
635 struct uni_table_desc *tab_desc;
636 struct uni_data_desc *descr;
637 const u8 *unirom = adapter->fw->data;
638 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
639 QLCNIC_UNI_FIRMWARE_IDX_OFF));
644 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
649 tab_size = cpu_to_le32(tab_desc->findex) +
650 (cpu_to_le32(tab_desc->entry_size * (idx + 1)));
652 if (adapter->fw->size < tab_size)
655 offs = cpu_to_le32(tab_desc->findex) +
656 (cpu_to_le32(tab_desc->entry_size) * (idx));
657 descr = (struct uni_data_desc *)&unirom[offs];
658 data_size = descr->findex + cpu_to_le32(descr->size);
660 if (adapter->fw->size < data_size)
667 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
669 struct uni_table_desc *ptab_descr;
670 const u8 *unirom = adapter->fw->data;
671 int mn_present = qlcnic_has_mn(adapter);
677 ptab_descr = qlcnic_get_table_desc(unirom,
678 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
682 entries = cpu_to_le32(ptab_descr->num_entries);
683 entry_size = cpu_to_le32(ptab_descr->entry_size);
684 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
686 if (adapter->fw->size < tab_size)
690 for (i = 0; i < entries; i++) {
692 __le32 flags, file_chiprev, offs;
693 u8 chiprev = adapter->ahw.revision_id;
696 offs = cpu_to_le32(ptab_descr->findex) +
697 (i * cpu_to_le32(ptab_descr->entry_size));
698 flags = cpu_to_le32(*((int *)&unirom[offs] +
699 QLCNIC_UNI_FLAGS_OFF));
700 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
701 QLCNIC_UNI_CHIP_REV_OFF));
703 flagbit = mn_present ? 1 : 2;
705 if ((chiprev == file_chiprev) &&
706 ((1ULL << flagbit) & flags)) {
707 adapter->file_prd_off = offs;
719 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
721 if (qlcnic_validate_header(adapter)) {
722 dev_err(&adapter->pdev->dev,
723 "unified image: header validation failed\n");
727 if (qlcnic_validate_product_offs(adapter)) {
728 dev_err(&adapter->pdev->dev,
729 "unified image: product validation failed\n");
733 if (qlcnic_validate_bootld(adapter)) {
734 dev_err(&adapter->pdev->dev,
735 "unified image: bootld validation failed\n");
739 if (qlcnic_validate_fw(adapter)) {
740 dev_err(&adapter->pdev->dev,
741 "unified image: firmware validation failed\n");
749 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
750 u32 section, u32 idx_offset)
752 const u8 *unirom = adapter->fw->data;
753 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
755 struct uni_table_desc *tab_desc;
758 tab_desc = qlcnic_get_table_desc(unirom, section);
760 if (tab_desc == NULL)
763 offs = cpu_to_le32(tab_desc->findex) +
764 (cpu_to_le32(tab_desc->entry_size) * idx);
766 return (struct uni_data_desc *)&unirom[offs];
770 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
772 u32 offs = QLCNIC_BOOTLD_START;
774 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
775 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
776 QLCNIC_UNI_DIR_SECT_BOOTLD,
777 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
779 return (u8 *)&adapter->fw->data[offs];
783 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
785 u32 offs = QLCNIC_IMAGE_START;
787 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
788 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
789 QLCNIC_UNI_DIR_SECT_FW,
790 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
792 return (u8 *)&adapter->fw->data[offs];
796 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
798 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
799 return cpu_to_le32((qlcnic_get_data_desc(adapter,
800 QLCNIC_UNI_DIR_SECT_FW,
801 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
804 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
808 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
810 struct uni_data_desc *fw_data_desc;
811 const struct firmware *fw = adapter->fw;
812 __le32 major, minor, sub;
816 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
817 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
819 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
820 QLCNIC_UNI_FIRMWARE_IDX_OFF);
821 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
822 cpu_to_le32(fw_data_desc->size) - 17;
824 for (i = 0; i < 12; i++) {
825 if (!strncmp(&ver_str[i], "REV=", 4)) {
826 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
827 &major, &minor, &sub);
831 return major + (minor << 8) + (sub << 16);
839 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
841 const struct firmware *fw = adapter->fw;
842 __le32 bios_ver, prd_off = adapter->file_prd_off;
844 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
846 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
848 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
849 + QLCNIC_UNI_BIOS_VERSION_OFF));
851 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
855 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
857 u32 count, old_count;
858 u32 val, version, major, minor, build;
861 if (adapter->need_fw_reset)
864 /* last attempt had failed */
865 if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
868 old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
870 for (i = 0; i < 10; i++) {
872 timeout = msleep_interruptible(200);
874 QLCWR32(adapter, CRB_CMDPEG_STATE,
875 PHAN_INITIALIZE_FAILED);
879 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
880 if (count != old_count)
884 /* firmware is dead */
885 if (count == old_count)
888 /* check if we have got newer or different file firmware */
891 val = qlcnic_get_fw_version(adapter);
893 version = QLCNIC_DECODE_VERSION(val);
895 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
896 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
897 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
899 if (version > QLCNIC_VERSION_CODE(major, minor, build))
906 static const char *fw_name[] = {
907 QLCNIC_UNIFIED_ROMIMAGE_NAME,
908 QLCNIC_FLASH_ROMIMAGE_NAME,
912 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
915 u32 i, flashaddr, size;
916 const struct firmware *fw = adapter->fw;
917 struct pci_dev *pdev = adapter->pdev;
919 dev_info(&pdev->dev, "loading firmware from %s\n",
920 fw_name[adapter->fw_type]);
925 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
927 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
928 flashaddr = QLCNIC_BOOTLD_START;
930 for (i = 0; i < size; i++) {
931 data = cpu_to_le64(ptr64[i]);
933 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
939 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
941 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
942 flashaddr = QLCNIC_IMAGE_START;
944 for (i = 0; i < size; i++) {
945 data = cpu_to_le64(ptr64[i]);
947 if (qlcnic_pci_mem_write_2M(adapter,
957 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
958 flashaddr = QLCNIC_BOOTLD_START;
960 for (i = 0; i < size; i++) {
961 if (qlcnic_rom_fast_read(adapter,
962 flashaddr, (int *)&lo) != 0)
964 if (qlcnic_rom_fast_read(adapter,
965 flashaddr + 4, (int *)&hi) != 0)
968 data = (((u64)hi << 32) | lo);
970 if (qlcnic_pci_mem_write_2M(adapter,
979 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
980 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
985 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
988 u32 ver, min_ver, bios, min_size;
989 struct pci_dev *pdev = adapter->pdev;
990 const struct firmware *fw = adapter->fw;
991 u8 fw_type = adapter->fw_type;
993 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
994 if (qlcnic_validate_unified_romimage(adapter))
997 min_size = QLCNIC_UNI_FW_MIN_SIZE;
999 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1000 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1003 min_size = QLCNIC_FW_MIN_SIZE;
1006 if (fw->size < min_size)
1009 val = qlcnic_get_fw_version(adapter);
1011 min_ver = QLCNIC_VERSION_CODE(4, 0, 216);
1013 ver = QLCNIC_DECODE_VERSION(val);
1015 if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) {
1017 "%s: firmware version %d.%d.%d unsupported\n",
1018 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1022 val = qlcnic_get_bios_version(adapter);
1023 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1024 if ((__force u32)val != bios) {
1025 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1030 /* check if flashed firmware is newer */
1031 if (qlcnic_rom_fast_read(adapter,
1032 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1035 val = QLCNIC_DECODE_VERSION(val);
1037 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1042 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1047 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1051 switch (adapter->fw_type) {
1052 case QLCNIC_UNKNOWN_ROMIMAGE:
1053 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1056 case QLCNIC_UNIFIED_ROMIMAGE:
1058 fw_type = QLCNIC_FLASH_ROMIMAGE;
1062 adapter->fw_type = fw_type;
1067 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1069 struct pci_dev *pdev = adapter->pdev;
1072 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1075 qlcnic_get_next_fwtype(adapter);
1077 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1080 rc = request_firmware(&adapter->fw,
1081 fw_name[adapter->fw_type], &pdev->dev);
1085 rc = qlcnic_validate_firmware(adapter);
1087 release_firmware(adapter->fw);
1096 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1099 release_firmware(adapter->fw);
1103 int qlcnic_phantom_init(struct qlcnic_adapter *adapter)
1109 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1112 case PHAN_INITIALIZE_COMPLETE:
1113 case PHAN_INITIALIZE_ACK:
1115 case PHAN_INITIALIZE_FAILED:
1123 } while (--retries);
1125 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1128 dev_err(&adapter->pdev->dev, "firmware init failed\n");
1133 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1139 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1141 if (val == PHAN_PEG_RCV_INITIALIZED)
1146 } while (--retries);
1149 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1150 "complete, state: 0x%x.\n", val);
1157 int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1161 err = qlcnic_receive_peg_ready(adapter);
1165 QLCWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1166 QLCWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1167 QLCWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1168 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1174 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1175 struct qlcnic_fw_msg *msg)
1180 u8 link_status, module, duplex, autoneg;
1181 struct net_device *netdev = adapter->netdev;
1183 adapter->has_link_events = 1;
1185 cable_OUI = msg->body[1] & 0xffffffff;
1186 cable_len = (msg->body[1] >> 32) & 0xffff;
1187 link_speed = (msg->body[1] >> 48) & 0xffff;
1189 link_status = msg->body[2] & 0xff;
1190 duplex = (msg->body[2] >> 16) & 0xff;
1191 autoneg = (msg->body[2] >> 24) & 0xff;
1193 module = (msg->body[2] >> 8) & 0xff;
1194 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1195 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1196 "length %d\n", cable_OUI, cable_len);
1197 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1198 dev_info(&netdev->dev, "unsupported cable length %d\n",
1201 qlcnic_advert_link_change(adapter, link_status);
1203 if (duplex == LINKEVENT_FULL_DUPLEX)
1204 adapter->link_duplex = DUPLEX_FULL;
1206 adapter->link_duplex = DUPLEX_HALF;
1208 adapter->module_type = module;
1209 adapter->link_autoneg = autoneg;
1210 adapter->link_speed = link_speed;
1214 qlcnic_handle_fw_message(int desc_cnt, int index,
1215 struct qlcnic_host_sds_ring *sds_ring)
1217 struct qlcnic_fw_msg msg;
1218 struct status_desc *desc;
1221 while (desc_cnt > 0 && i < 8) {
1222 desc = &sds_ring->desc_head[index];
1223 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1224 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1226 index = get_next_index(index, sds_ring->num_desc);
1230 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1232 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1233 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1241 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1242 struct qlcnic_host_rds_ring *rds_ring,
1243 struct qlcnic_rx_buffer *buffer)
1245 struct sk_buff *skb;
1247 struct pci_dev *pdev = adapter->pdev;
1249 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1251 adapter->stats.skb_alloc_failure++;
1257 if (!adapter->ahw.cut_through)
1258 skb_reserve(skb, 2);
1260 dma = pci_map_single(pdev, skb->data,
1261 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1263 if (pci_dma_mapping_error(pdev, dma)) {
1264 dev_kfree_skb_any(skb);
1271 buffer->state = QLCNIC_BUFFER_BUSY;
1276 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1277 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1279 struct qlcnic_rx_buffer *buffer;
1280 struct sk_buff *skb;
1282 buffer = &rds_ring->rx_buf_arr[index];
1284 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1285 PCI_DMA_FROMDEVICE);
1291 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1292 adapter->stats.csummed++;
1293 skb->ip_summed = CHECKSUM_UNNECESSARY;
1295 skb->ip_summed = CHECKSUM_NONE;
1298 skb->dev = adapter->netdev;
1302 buffer->state = QLCNIC_BUFFER_FREE;
1306 static struct qlcnic_rx_buffer *
1307 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1308 struct qlcnic_host_sds_ring *sds_ring,
1309 int ring, u64 sts_data0)
1311 struct net_device *netdev = adapter->netdev;
1312 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1313 struct qlcnic_rx_buffer *buffer;
1314 struct sk_buff *skb;
1315 struct qlcnic_host_rds_ring *rds_ring;
1316 int index, length, cksum, pkt_offset;
1318 if (unlikely(ring >= adapter->max_rds_rings))
1321 rds_ring = &recv_ctx->rds_rings[ring];
1323 index = qlcnic_get_sts_refhandle(sts_data0);
1324 if (unlikely(index >= rds_ring->num_desc))
1327 buffer = &rds_ring->rx_buf_arr[index];
1329 length = qlcnic_get_sts_totallength(sts_data0);
1330 cksum = qlcnic_get_sts_status(sts_data0);
1331 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1333 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1337 if (length > rds_ring->skb_size)
1338 skb_put(skb, rds_ring->skb_size);
1340 skb_put(skb, length);
1343 skb_pull(skb, pkt_offset);
1345 skb->truesize = skb->len + sizeof(struct sk_buff);
1346 skb->protocol = eth_type_trans(skb, netdev);
1348 napi_gro_receive(&sds_ring->napi, skb);
1350 adapter->stats.rx_pkts++;
1351 adapter->stats.rxbytes += length;
1356 #define QLC_TCP_HDR_SIZE 20
1357 #define QLC_TCP_TS_OPTION_SIZE 12
1358 #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1360 static struct qlcnic_rx_buffer *
1361 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1362 struct qlcnic_host_sds_ring *sds_ring,
1363 int ring, u64 sts_data0, u64 sts_data1)
1365 struct net_device *netdev = adapter->netdev;
1366 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1367 struct qlcnic_rx_buffer *buffer;
1368 struct sk_buff *skb;
1369 struct qlcnic_host_rds_ring *rds_ring;
1372 bool push, timestamp;
1373 int l2_hdr_offset, l4_hdr_offset;
1375 u16 lro_length, length, data_offset;
1378 if (unlikely(ring > adapter->max_rds_rings))
1381 rds_ring = &recv_ctx->rds_rings[ring];
1383 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1384 if (unlikely(index > rds_ring->num_desc))
1387 buffer = &rds_ring->rx_buf_arr[index];
1389 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1390 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1391 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1392 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1393 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1394 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1396 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1401 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1403 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1405 skb_put(skb, lro_length + data_offset);
1407 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1409 skb_pull(skb, l2_hdr_offset);
1410 skb->protocol = eth_type_trans(skb, netdev);
1412 iph = (struct iphdr *)skb->data;
1413 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1415 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1416 iph->tot_len = htons(length);
1418 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1420 th->seq = htonl(seq_number);
1424 netif_receive_skb(skb);
1426 adapter->stats.lro_pkts++;
1427 adapter->stats.lrobytes += length;
1433 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1435 struct qlcnic_adapter *adapter = sds_ring->adapter;
1436 struct list_head *cur;
1437 struct status_desc *desc;
1438 struct qlcnic_rx_buffer *rxbuf;
1439 u64 sts_data0, sts_data1;
1442 int opcode, ring, desc_cnt;
1443 u32 consumer = sds_ring->consumer;
1445 while (count < max) {
1446 desc = &sds_ring->desc_head[consumer];
1447 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1449 if (!(sts_data0 & STATUS_OWNER_HOST))
1452 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1453 opcode = qlcnic_get_sts_opcode(sts_data0);
1456 case QLCNIC_RXPKT_DESC:
1457 case QLCNIC_OLD_RXPKT_DESC:
1458 case QLCNIC_SYN_OFFLOAD:
1459 ring = qlcnic_get_sts_type(sts_data0);
1460 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1463 case QLCNIC_LRO_DESC:
1464 ring = qlcnic_get_lro_sts_type(sts_data0);
1465 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1466 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1467 ring, sts_data0, sts_data1);
1469 case QLCNIC_RESPONSE_DESC:
1470 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1475 WARN_ON(desc_cnt > 1);
1478 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1481 for (; desc_cnt > 0; desc_cnt--) {
1482 desc = &sds_ring->desc_head[consumer];
1483 desc->status_desc_data[0] =
1484 cpu_to_le64(STATUS_OWNER_PHANTOM);
1485 consumer = get_next_index(consumer, sds_ring->num_desc);
1490 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1491 struct qlcnic_host_rds_ring *rds_ring =
1492 &adapter->recv_ctx.rds_rings[ring];
1494 if (!list_empty(&sds_ring->free_list[ring])) {
1495 list_for_each(cur, &sds_ring->free_list[ring]) {
1496 rxbuf = list_entry(cur,
1497 struct qlcnic_rx_buffer, list);
1498 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1500 spin_lock(&rds_ring->lock);
1501 list_splice_tail_init(&sds_ring->free_list[ring],
1502 &rds_ring->free_list);
1503 spin_unlock(&rds_ring->lock);
1506 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1510 sds_ring->consumer = consumer;
1511 writel(consumer, sds_ring->crb_sts_consumer);
1518 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1519 struct qlcnic_host_rds_ring *rds_ring)
1521 struct rcv_desc *pdesc;
1522 struct qlcnic_rx_buffer *buffer;
1523 int producer, count = 0;
1524 struct list_head *head;
1526 producer = rds_ring->producer;
1528 spin_lock(&rds_ring->lock);
1529 head = &rds_ring->free_list;
1530 while (!list_empty(head)) {
1532 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1535 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1540 list_del(&buffer->list);
1542 /* make a rcv descriptor */
1543 pdesc = &rds_ring->desc_head[producer];
1544 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1545 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1546 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1548 producer = get_next_index(producer, rds_ring->num_desc);
1550 spin_unlock(&rds_ring->lock);
1553 rds_ring->producer = producer;
1554 writel((producer-1) & (rds_ring->num_desc-1),
1555 rds_ring->crb_rcv_producer);
1560 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1561 struct qlcnic_host_rds_ring *rds_ring)
1563 struct rcv_desc *pdesc;
1564 struct qlcnic_rx_buffer *buffer;
1565 int producer, count = 0;
1566 struct list_head *head;
1568 producer = rds_ring->producer;
1569 if (!spin_trylock(&rds_ring->lock))
1572 head = &rds_ring->free_list;
1573 while (!list_empty(head)) {
1575 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1578 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1583 list_del(&buffer->list);
1585 /* make a rcv descriptor */
1586 pdesc = &rds_ring->desc_head[producer];
1587 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1588 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1589 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1591 producer = get_next_index(producer, rds_ring->num_desc);
1595 rds_ring->producer = producer;
1596 writel((producer - 1) & (rds_ring->num_desc - 1),
1597 rds_ring->crb_rcv_producer);
1599 spin_unlock(&rds_ring->lock);
1602 static struct qlcnic_rx_buffer *
1603 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1604 struct qlcnic_host_sds_ring *sds_ring,
1605 int ring, u64 sts_data0)
1607 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1608 struct qlcnic_rx_buffer *buffer;
1609 struct sk_buff *skb;
1610 struct qlcnic_host_rds_ring *rds_ring;
1611 int index, length, cksum, pkt_offset;
1613 if (unlikely(ring >= adapter->max_rds_rings))
1616 rds_ring = &recv_ctx->rds_rings[ring];
1618 index = qlcnic_get_sts_refhandle(sts_data0);
1619 if (unlikely(index >= rds_ring->num_desc))
1622 buffer = &rds_ring->rx_buf_arr[index];
1624 length = qlcnic_get_sts_totallength(sts_data0);
1625 cksum = qlcnic_get_sts_status(sts_data0);
1626 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1628 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1632 skb_put(skb, rds_ring->skb_size);
1635 skb_pull(skb, pkt_offset);
1637 skb->truesize = skb->len + sizeof(struct sk_buff);
1639 if (!qlcnic_check_loopback_buff(skb->data))
1640 adapter->diag_cnt++;
1642 dev_kfree_skb_any(skb);
1643 adapter->stats.rx_pkts++;
1644 adapter->stats.rxbytes += length;
1650 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1652 struct qlcnic_adapter *adapter = sds_ring->adapter;
1653 struct status_desc *desc;
1654 struct qlcnic_rx_buffer *rxbuf;
1657 int opcode, ring, desc_cnt;
1658 u32 consumer = sds_ring->consumer;
1660 desc = &sds_ring->desc_head[consumer];
1661 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1663 if (!(sts_data0 & STATUS_OWNER_HOST))
1666 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1667 opcode = qlcnic_get_sts_opcode(sts_data0);
1669 ring = qlcnic_get_sts_type(sts_data0);
1670 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1673 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1674 consumer = get_next_index(consumer, sds_ring->num_desc);
1676 sds_ring->consumer = consumer;
1677 writel(consumer, sds_ring->crb_sts_consumer);