| /* |
| * Copyright (C) 2009 - QLogic Corporation. |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| * MA 02111-1307, USA. |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called "COPYING". |
| * |
| */ |
| |
| #include <linux/netdevice.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| #include "qlcnic.h" |
| |
| struct crb_addr_pair { |
| u32 addr; |
| u32 data; |
| }; |
| |
| #define QLCNIC_MAX_CRB_XFORM 60 |
| static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM]; |
| |
| #define crb_addr_transform(name) \ |
| (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \ |
| QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20) |
| |
| #define QLCNIC_ADDR_ERROR (0xffffffff) |
| |
| static void |
| qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_rds_ring *rds_ring); |
| |
| static void crb_addr_transform_setup(void) |
| { |
| crb_addr_transform(XDMA); |
| crb_addr_transform(TIMR); |
| crb_addr_transform(SRE); |
| crb_addr_transform(SQN3); |
| crb_addr_transform(SQN2); |
| crb_addr_transform(SQN1); |
| crb_addr_transform(SQN0); |
| crb_addr_transform(SQS3); |
| crb_addr_transform(SQS2); |
| crb_addr_transform(SQS1); |
| crb_addr_transform(SQS0); |
| crb_addr_transform(RPMX7); |
| crb_addr_transform(RPMX6); |
| crb_addr_transform(RPMX5); |
| crb_addr_transform(RPMX4); |
| crb_addr_transform(RPMX3); |
| crb_addr_transform(RPMX2); |
| crb_addr_transform(RPMX1); |
| crb_addr_transform(RPMX0); |
| crb_addr_transform(ROMUSB); |
| crb_addr_transform(SN); |
| crb_addr_transform(QMN); |
| crb_addr_transform(QMS); |
| crb_addr_transform(PGNI); |
| crb_addr_transform(PGND); |
| crb_addr_transform(PGN3); |
| crb_addr_transform(PGN2); |
| crb_addr_transform(PGN1); |
| crb_addr_transform(PGN0); |
| crb_addr_transform(PGSI); |
| crb_addr_transform(PGSD); |
| crb_addr_transform(PGS3); |
| crb_addr_transform(PGS2); |
| crb_addr_transform(PGS1); |
| crb_addr_transform(PGS0); |
| crb_addr_transform(PS); |
| crb_addr_transform(PH); |
| crb_addr_transform(NIU); |
| crb_addr_transform(I2Q); |
| crb_addr_transform(EG); |
| crb_addr_transform(MN); |
| crb_addr_transform(MS); |
| crb_addr_transform(CAS2); |
| crb_addr_transform(CAS1); |
| crb_addr_transform(CAS0); |
| crb_addr_transform(CAM); |
| crb_addr_transform(C2C1); |
| crb_addr_transform(C2C0); |
| crb_addr_transform(SMB); |
| crb_addr_transform(OCM0); |
| crb_addr_transform(I2C0); |
| } |
| |
| void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter) |
| { |
| struct qlcnic_recv_context *recv_ctx; |
| struct qlcnic_host_rds_ring *rds_ring; |
| struct qlcnic_rx_buffer *rx_buf; |
| int i, ring; |
| |
| recv_ctx = &adapter->recv_ctx; |
| for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| for (i = 0; i < rds_ring->num_desc; ++i) { |
| rx_buf = &(rds_ring->rx_buf_arr[i]); |
| if (rx_buf->state == QLCNIC_BUFFER_FREE) |
| continue; |
| pci_unmap_single(adapter->pdev, |
| rx_buf->dma, |
| rds_ring->dma_size, |
| PCI_DMA_FROMDEVICE); |
| if (rx_buf->skb != NULL) |
| dev_kfree_skb_any(rx_buf->skb); |
| } |
| } |
| } |
| |
| void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter) |
| { |
| struct qlcnic_cmd_buffer *cmd_buf; |
| struct qlcnic_skb_frag *buffrag; |
| int i, j; |
| struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; |
| |
| cmd_buf = tx_ring->cmd_buf_arr; |
| for (i = 0; i < tx_ring->num_desc; i++) { |
| buffrag = cmd_buf->frag_array; |
| if (buffrag->dma) { |
| pci_unmap_single(adapter->pdev, buffrag->dma, |
| buffrag->length, PCI_DMA_TODEVICE); |
| buffrag->dma = 0ULL; |
| } |
| for (j = 0; j < cmd_buf->frag_count; j++) { |
| buffrag++; |
| if (buffrag->dma) { |
| pci_unmap_page(adapter->pdev, buffrag->dma, |
| buffrag->length, |
| PCI_DMA_TODEVICE); |
| buffrag->dma = 0ULL; |
| } |
| } |
| if (cmd_buf->skb) { |
| dev_kfree_skb_any(cmd_buf->skb); |
| cmd_buf->skb = NULL; |
| } |
| cmd_buf++; |
| } |
| } |
| |
| void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter) |
| { |
| struct qlcnic_recv_context *recv_ctx; |
| struct qlcnic_host_rds_ring *rds_ring; |
| struct qlcnic_host_tx_ring *tx_ring; |
| int ring; |
| |
| recv_ctx = &adapter->recv_ctx; |
| |
| if (recv_ctx->rds_rings == NULL) |
| goto skip_rds; |
| |
| for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| vfree(rds_ring->rx_buf_arr); |
| rds_ring->rx_buf_arr = NULL; |
| } |
| kfree(recv_ctx->rds_rings); |
| |
| skip_rds: |
| if (adapter->tx_ring == NULL) |
| return; |
| |
| tx_ring = adapter->tx_ring; |
| vfree(tx_ring->cmd_buf_arr); |
| kfree(adapter->tx_ring); |
| } |
| |
| int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter) |
| { |
| struct qlcnic_recv_context *recv_ctx; |
| struct qlcnic_host_rds_ring *rds_ring; |
| struct qlcnic_host_sds_ring *sds_ring; |
| struct qlcnic_host_tx_ring *tx_ring; |
| struct qlcnic_rx_buffer *rx_buf; |
| int ring, i, size; |
| |
| struct qlcnic_cmd_buffer *cmd_buf_arr; |
| struct net_device *netdev = adapter->netdev; |
| |
| size = sizeof(struct qlcnic_host_tx_ring); |
| tx_ring = kzalloc(size, GFP_KERNEL); |
| if (tx_ring == NULL) { |
| dev_err(&netdev->dev, "failed to allocate tx ring struct\n"); |
| return -ENOMEM; |
| } |
| adapter->tx_ring = tx_ring; |
| |
| tx_ring->num_desc = adapter->num_txd; |
| tx_ring->txq = netdev_get_tx_queue(netdev, 0); |
| |
| cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring)); |
| if (cmd_buf_arr == NULL) { |
| dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n"); |
| return -ENOMEM; |
| } |
| memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); |
| tx_ring->cmd_buf_arr = cmd_buf_arr; |
| |
| recv_ctx = &adapter->recv_ctx; |
| |
| size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring); |
| rds_ring = kzalloc(size, GFP_KERNEL); |
| if (rds_ring == NULL) { |
| dev_err(&netdev->dev, "failed to allocate rds ring struct\n"); |
| return -ENOMEM; |
| } |
| recv_ctx->rds_rings = rds_ring; |
| |
| for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| switch (ring) { |
| case RCV_RING_NORMAL: |
| rds_ring->num_desc = adapter->num_rxd; |
| if (adapter->ahw.cut_through) { |
| rds_ring->dma_size = |
| QLCNIC_CT_DEFAULT_RX_BUF_LEN; |
| rds_ring->skb_size = |
| QLCNIC_CT_DEFAULT_RX_BUF_LEN; |
| } else { |
| rds_ring->dma_size = |
| QLCNIC_P3_RX_BUF_MAX_LEN; |
| rds_ring->skb_size = |
| rds_ring->dma_size + NET_IP_ALIGN; |
| } |
| break; |
| |
| case RCV_RING_JUMBO: |
| rds_ring->num_desc = adapter->num_jumbo_rxd; |
| rds_ring->dma_size = |
| QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN; |
| |
| if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) |
| rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA; |
| |
| rds_ring->skb_size = |
| rds_ring->dma_size + NET_IP_ALIGN; |
| break; |
| |
| case RCV_RING_LRO: |
| rds_ring->num_desc = adapter->num_lro_rxd; |
| rds_ring->dma_size = QLCNIC_RX_LRO_BUFFER_LENGTH; |
| rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN; |
| break; |
| |
| } |
| rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *) |
| vmalloc(RCV_BUFF_RINGSIZE(rds_ring)); |
| if (rds_ring->rx_buf_arr == NULL) { |
| dev_err(&netdev->dev, "Failed to allocate " |
| "rx buffer ring %d\n", ring); |
| goto err_out; |
| } |
| memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring)); |
| INIT_LIST_HEAD(&rds_ring->free_list); |
| /* |
| * Now go through all of them, set reference handles |
| * and put them in the queues. |
| */ |
| rx_buf = rds_ring->rx_buf_arr; |
| for (i = 0; i < rds_ring->num_desc; i++) { |
| list_add_tail(&rx_buf->list, |
| &rds_ring->free_list); |
| rx_buf->ref_handle = i; |
| rx_buf->state = QLCNIC_BUFFER_FREE; |
| rx_buf++; |
| } |
| spin_lock_init(&rds_ring->lock); |
| } |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| sds_ring->irq = adapter->msix_entries[ring].vector; |
| sds_ring->adapter = adapter; |
| sds_ring->num_desc = adapter->num_rxd; |
| |
| for (i = 0; i < NUM_RCV_DESC_RINGS; i++) |
| INIT_LIST_HEAD(&sds_ring->free_list[i]); |
| } |
| |
| return 0; |
| |
| err_out: |
| qlcnic_free_sw_resources(adapter); |
| return -ENOMEM; |
| } |
| |
| /* |
| * Utility to translate from internal Phantom CRB address |
| * to external PCI CRB address. |
| */ |
| static u32 qlcnic_decode_crb_addr(u32 addr) |
| { |
| int i; |
| u32 base_addr, offset, pci_base; |
| |
| crb_addr_transform_setup(); |
| |
| pci_base = QLCNIC_ADDR_ERROR; |
| base_addr = addr & 0xfff00000; |
| offset = addr & 0x000fffff; |
| |
| for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) { |
| if (crb_addr_xform[i] == base_addr) { |
| pci_base = i << 20; |
| break; |
| } |
| } |
| if (pci_base == QLCNIC_ADDR_ERROR) |
| return pci_base; |
| else |
| return pci_base + offset; |
| } |
| |
| #define QLCNIC_MAX_ROM_WAIT_USEC 100 |
| |
| static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter) |
| { |
| long timeout = 0; |
| long done = 0; |
| |
| cond_resched(); |
| |
| while (done == 0) { |
| done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS); |
| done &= 2; |
| if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) { |
| dev_err(&adapter->pdev->dev, |
| "Timeout reached waiting for rom done"); |
| return -EIO; |
| } |
| udelay(1); |
| } |
| return 0; |
| } |
| |
| static int do_rom_fast_read(struct qlcnic_adapter *adapter, |
| int addr, int *valp) |
| { |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr); |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3); |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb); |
| if (qlcnic_wait_rom_done(adapter)) { |
| dev_err(&adapter->pdev->dev, "Error waiting for rom done\n"); |
| return -EIO; |
| } |
| /* reset abyte_cnt and dummy_byte_cnt */ |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0); |
| udelay(10); |
| QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| |
| *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA); |
| return 0; |
| } |
| |
| static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr, |
| u8 *bytes, size_t size) |
| { |
| int addridx; |
| int ret = 0; |
| |
| for (addridx = addr; addridx < (addr + size); addridx += 4) { |
| int v; |
| ret = do_rom_fast_read(adapter, addridx, &v); |
| if (ret != 0) |
| break; |
| *(__le32 *)bytes = cpu_to_le32(v); |
| bytes += 4; |
| } |
| |
| return ret; |
| } |
| |
| int |
| qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr, |
| u8 *bytes, size_t size) |
| { |
| int ret; |
| |
| ret = qlcnic_rom_lock(adapter); |
| if (ret < 0) |
| return ret; |
| |
| ret = do_rom_fast_read_words(adapter, addr, bytes, size); |
| |
| qlcnic_rom_unlock(adapter); |
| return ret; |
| } |
| |
| int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp) |
| { |
| int ret; |
| |
| if (qlcnic_rom_lock(adapter) != 0) |
| return -EIO; |
| |
| ret = do_rom_fast_read(adapter, addr, valp); |
| qlcnic_rom_unlock(adapter); |
| return ret; |
| } |
| |
| int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter) |
| { |
| int addr, val; |
| int i, n, init_delay; |
| struct crb_addr_pair *buf; |
| unsigned offset; |
| u32 off; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| /* resetall */ |
| qlcnic_rom_lock(adapter); |
| QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xffffffff); |
| qlcnic_rom_unlock(adapter); |
| |
| if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) || |
| qlcnic_rom_fast_read(adapter, 4, &n) != 0) { |
| dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n); |
| return -EIO; |
| } |
| offset = n & 0xffffU; |
| n = (n >> 16) & 0xffffU; |
| |
| if (n >= 1024) { |
| dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n"); |
| return -EIO; |
| } |
| |
| buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
| if (buf == NULL) { |
| dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n"); |
| return -ENOMEM; |
| } |
| |
| for (i = 0; i < n; i++) { |
| if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || |
| qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) { |
| kfree(buf); |
| return -EIO; |
| } |
| |
| buf[i].addr = addr; |
| buf[i].data = val; |
| } |
| |
| for (i = 0; i < n; i++) { |
| |
| off = qlcnic_decode_crb_addr(buf[i].addr); |
| if (off == QLCNIC_ADDR_ERROR) { |
| dev_err(&pdev->dev, "CRB init value out of range %x\n", |
| buf[i].addr); |
| continue; |
| } |
| off += QLCNIC_PCI_CRBSPACE; |
| |
| if (off & 1) |
| continue; |
| |
| /* skipping cold reboot MAGIC */ |
| if (off == QLCNIC_CAM_RAM(0x1fc)) |
| continue; |
| if (off == (QLCNIC_CRB_I2C0 + 0x1c)) |
| continue; |
| if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */ |
| continue; |
| if (off == (ROMUSB_GLB + 0xa8)) |
| continue; |
| if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ |
| continue; |
| if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ |
| continue; |
| if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ |
| continue; |
| if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET) |
| continue; |
| /* skip the function enable register */ |
| if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION)) |
| continue; |
| if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2)) |
| continue; |
| if ((off & 0x0ff00000) == QLCNIC_CRB_SMB) |
| continue; |
| |
| init_delay = 1; |
| /* After writing this register, HW needs time for CRB */ |
| /* to quiet down (else crb_window returns 0xffffffff) */ |
| if (off == QLCNIC_ROMUSB_GLB_SW_RESET) |
| init_delay = 1000; |
| |
| QLCWR32(adapter, off, buf[i].data); |
| |
| msleep(init_delay); |
| } |
| kfree(buf); |
| |
| /* p2dn replyCount */ |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e); |
| /* disable_peg_cache 0 & 1*/ |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8); |
| |
| /* peg_clr_all */ |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0); |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0); |
| return 0; |
| } |
| |
| void |
| qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) { |
| |
| int timeo; |
| |
| if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo)) |
| timeo = 30; |
| |
| adapter->dev_init_timeo = timeo; |
| |
| if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo)) |
| timeo = 10; |
| |
| adapter->reset_ack_timeo = timeo; |
| } |
| |
| static int |
| qlcnic_has_mn(struct qlcnic_adapter *adapter) |
| { |
| u32 capability, flashed_ver; |
| capability = 0; |
| |
| qlcnic_rom_fast_read(adapter, |
| QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver); |
| flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver); |
| |
| if (flashed_ver >= QLCNIC_VERSION_CODE(4, 0, 220)) { |
| |
| capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY); |
| if (capability & QLCNIC_PEG_TUNE_MN_PRESENT) |
| return 1; |
| } |
| return 0; |
| } |
| |
| static |
| struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section) |
| { |
| u32 i; |
| struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0]; |
| __le32 entries = cpu_to_le32(directory->num_entries); |
| |
| for (i = 0; i < entries; i++) { |
| |
| __le32 offs = cpu_to_le32(directory->findex) + |
| (i * cpu_to_le32(directory->entry_size)); |
| __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8)); |
| |
| if (tab_type == section) |
| return (struct uni_table_desc *) &unirom[offs]; |
| } |
| |
| return NULL; |
| } |
| |
| #define FILEHEADER_SIZE (14 * 4) |
| |
| static int |
| qlcnic_validate_header(struct qlcnic_adapter *adapter) |
| { |
| const u8 *unirom = adapter->fw->data; |
| struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0]; |
| __le32 fw_file_size = adapter->fw->size; |
| __le32 entries; |
| __le32 entry_size; |
| __le32 tab_size; |
| |
| if (fw_file_size < FILEHEADER_SIZE) |
| return -EINVAL; |
| |
| entries = cpu_to_le32(directory->num_entries); |
| entry_size = cpu_to_le32(directory->entry_size); |
| tab_size = cpu_to_le32(directory->findex) + (entries * entry_size); |
| |
| if (fw_file_size < tab_size) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int |
| qlcnic_validate_bootld(struct qlcnic_adapter *adapter) |
| { |
| struct uni_table_desc *tab_desc; |
| struct uni_data_desc *descr; |
| const u8 *unirom = adapter->fw->data; |
| int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + |
| QLCNIC_UNI_BOOTLD_IDX_OFF)); |
| __le32 offs; |
| __le32 tab_size; |
| __le32 data_size; |
| |
| tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD); |
| |
| if (!tab_desc) |
| return -EINVAL; |
| |
| tab_size = cpu_to_le32(tab_desc->findex) + |
| (cpu_to_le32(tab_desc->entry_size) * (idx + 1)); |
| |
| if (adapter->fw->size < tab_size) |
| return -EINVAL; |
| |
| offs = cpu_to_le32(tab_desc->findex) + |
| (cpu_to_le32(tab_desc->entry_size) * (idx)); |
| descr = (struct uni_data_desc *)&unirom[offs]; |
| |
| data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size); |
| |
| if (adapter->fw->size < data_size) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int |
| qlcnic_validate_fw(struct qlcnic_adapter *adapter) |
| { |
| struct uni_table_desc *tab_desc; |
| struct uni_data_desc *descr; |
| const u8 *unirom = adapter->fw->data; |
| int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + |
| QLCNIC_UNI_FIRMWARE_IDX_OFF)); |
| __le32 offs; |
| __le32 tab_size; |
| __le32 data_size; |
| |
| tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW); |
| |
| if (!tab_desc) |
| return -EINVAL; |
| |
| tab_size = cpu_to_le32(tab_desc->findex) + |
| (cpu_to_le32(tab_desc->entry_size) * (idx + 1)); |
| |
| if (adapter->fw->size < tab_size) |
| return -EINVAL; |
| |
| offs = cpu_to_le32(tab_desc->findex) + |
| (cpu_to_le32(tab_desc->entry_size) * (idx)); |
| descr = (struct uni_data_desc *)&unirom[offs]; |
| data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size); |
| |
| if (adapter->fw->size < data_size) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int |
| qlcnic_validate_product_offs(struct qlcnic_adapter *adapter) |
| { |
| struct uni_table_desc *ptab_descr; |
| const u8 *unirom = adapter->fw->data; |
| int mn_present = qlcnic_has_mn(adapter); |
| __le32 entries; |
| __le32 entry_size; |
| __le32 tab_size; |
| u32 i; |
| |
| ptab_descr = qlcnic_get_table_desc(unirom, |
| QLCNIC_UNI_DIR_SECT_PRODUCT_TBL); |
| if (!ptab_descr) |
| return -EINVAL; |
| |
| entries = cpu_to_le32(ptab_descr->num_entries); |
| entry_size = cpu_to_le32(ptab_descr->entry_size); |
| tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size); |
| |
| if (adapter->fw->size < tab_size) |
| return -EINVAL; |
| |
| nomn: |
| for (i = 0; i < entries; i++) { |
| |
| __le32 flags, file_chiprev, offs; |
| u8 chiprev = adapter->ahw.revision_id; |
| u32 flagbit; |
| |
| offs = cpu_to_le32(ptab_descr->findex) + |
| (i * cpu_to_le32(ptab_descr->entry_size)); |
| flags = cpu_to_le32(*((int *)&unirom[offs] + |
| QLCNIC_UNI_FLAGS_OFF)); |
| file_chiprev = cpu_to_le32(*((int *)&unirom[offs] + |
| QLCNIC_UNI_CHIP_REV_OFF)); |
| |
| flagbit = mn_present ? 1 : 2; |
| |
| if ((chiprev == file_chiprev) && |
| ((1ULL << flagbit) & flags)) { |
| adapter->file_prd_off = offs; |
| return 0; |
| } |
| } |
| if (mn_present) { |
| mn_present = 0; |
| goto nomn; |
| } |
| return -EINVAL; |
| } |
| |
| static int |
| qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter) |
| { |
| if (qlcnic_validate_header(adapter)) { |
| dev_err(&adapter->pdev->dev, |
| "unified image: header validation failed\n"); |
| return -EINVAL; |
| } |
| |
| if (qlcnic_validate_product_offs(adapter)) { |
| dev_err(&adapter->pdev->dev, |
| "unified image: product validation failed\n"); |
| return -EINVAL; |
| } |
| |
| if (qlcnic_validate_bootld(adapter)) { |
| dev_err(&adapter->pdev->dev, |
| "unified image: bootld validation failed\n"); |
| return -EINVAL; |
| } |
| |
| if (qlcnic_validate_fw(adapter)) { |
| dev_err(&adapter->pdev->dev, |
| "unified image: firmware validation failed\n"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static |
| struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter, |
| u32 section, u32 idx_offset) |
| { |
| const u8 *unirom = adapter->fw->data; |
| int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + |
| idx_offset)); |
| struct uni_table_desc *tab_desc; |
| __le32 offs; |
| |
| tab_desc = qlcnic_get_table_desc(unirom, section); |
| |
| if (tab_desc == NULL) |
| return NULL; |
| |
| offs = cpu_to_le32(tab_desc->findex) + |
| (cpu_to_le32(tab_desc->entry_size) * idx); |
| |
| return (struct uni_data_desc *)&unirom[offs]; |
| } |
| |
| static u8 * |
| qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter) |
| { |
| u32 offs = QLCNIC_BOOTLD_START; |
| |
| if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE) |
| offs = cpu_to_le32((qlcnic_get_data_desc(adapter, |
| QLCNIC_UNI_DIR_SECT_BOOTLD, |
| QLCNIC_UNI_BOOTLD_IDX_OFF))->findex); |
| |
| return (u8 *)&adapter->fw->data[offs]; |
| } |
| |
| static u8 * |
| qlcnic_get_fw_offs(struct qlcnic_adapter *adapter) |
| { |
| u32 offs = QLCNIC_IMAGE_START; |
| |
| if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE) |
| offs = cpu_to_le32((qlcnic_get_data_desc(adapter, |
| QLCNIC_UNI_DIR_SECT_FW, |
| QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex); |
| |
| return (u8 *)&adapter->fw->data[offs]; |
| } |
| |
| static __le32 |
| qlcnic_get_fw_size(struct qlcnic_adapter *adapter) |
| { |
| if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE) |
| return cpu_to_le32((qlcnic_get_data_desc(adapter, |
| QLCNIC_UNI_DIR_SECT_FW, |
| QLCNIC_UNI_FIRMWARE_IDX_OFF))->size); |
| else |
| return cpu_to_le32( |
| *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]); |
| } |
| |
| static __le32 |
| qlcnic_get_fw_version(struct qlcnic_adapter *adapter) |
| { |
| struct uni_data_desc *fw_data_desc; |
| const struct firmware *fw = adapter->fw; |
| __le32 major, minor, sub; |
| const u8 *ver_str; |
| int i, ret; |
| |
| if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE) |
| return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]); |
| |
| fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW, |
| QLCNIC_UNI_FIRMWARE_IDX_OFF); |
| ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) + |
| cpu_to_le32(fw_data_desc->size) - 17; |
| |
| for (i = 0; i < 12; i++) { |
| if (!strncmp(&ver_str[i], "REV=", 4)) { |
| ret = sscanf(&ver_str[i+4], "%u.%u.%u ", |
| &major, &minor, &sub); |
| if (ret != 3) |
| return 0; |
| else |
| return major + (minor << 8) + (sub << 16); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static __le32 |
| qlcnic_get_bios_version(struct qlcnic_adapter *adapter) |
| { |
| const struct firmware *fw = adapter->fw; |
| __le32 bios_ver, prd_off = adapter->file_prd_off; |
| |
| if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE) |
| return cpu_to_le32( |
| *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]); |
| |
| bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off]) |
| + QLCNIC_UNI_BIOS_VERSION_OFF)); |
| |
| return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24); |
| } |
| |
| int |
| qlcnic_need_fw_reset(struct qlcnic_adapter *adapter) |
| { |
| u32 count, old_count; |
| u32 val, version, major, minor, build; |
| int i, timeout; |
| |
| if (adapter->need_fw_reset) |
| return 1; |
| |
| /* last attempt had failed */ |
| if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED) |
| return 1; |
| |
| old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); |
| |
| for (i = 0; i < 10; i++) { |
| |
| timeout = msleep_interruptible(200); |
| if (timeout) { |
| QLCWR32(adapter, CRB_CMDPEG_STATE, |
| PHAN_INITIALIZE_FAILED); |
| return -EINTR; |
| } |
| |
| count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); |
| if (count != old_count) |
| break; |
| } |
| |
| /* firmware is dead */ |
| if (count == old_count) |
| return 1; |
| |
| /* check if we have got newer or different file firmware */ |
| if (adapter->fw) { |
| |
| val = qlcnic_get_fw_version(adapter); |
| |
| version = QLCNIC_DECODE_VERSION(val); |
| |
| major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); |
| minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); |
| build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); |
| |
| if (version > QLCNIC_VERSION_CODE(major, minor, build)) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static const char *fw_name[] = { |
| QLCNIC_UNIFIED_ROMIMAGE_NAME, |
| QLCNIC_FLASH_ROMIMAGE_NAME, |
| }; |
| |
| int |
| qlcnic_load_firmware(struct qlcnic_adapter *adapter) |
| { |
| u64 *ptr64; |
| u32 i, flashaddr, size; |
| const struct firmware *fw = adapter->fw; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| dev_info(&pdev->dev, "loading firmware from %s\n", |
| fw_name[adapter->fw_type]); |
| |
| if (fw) { |
| __le64 data; |
| |
| size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8; |
| |
| ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter); |
| flashaddr = QLCNIC_BOOTLD_START; |
| |
| for (i = 0; i < size; i++) { |
| data = cpu_to_le64(ptr64[i]); |
| |
| if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data)) |
| return -EIO; |
| |
| flashaddr += 8; |
| } |
| |
| size = (__force u32)qlcnic_get_fw_size(adapter) / 8; |
| |
| ptr64 = (u64 *)qlcnic_get_fw_offs(adapter); |
| flashaddr = QLCNIC_IMAGE_START; |
| |
| for (i = 0; i < size; i++) { |
| data = cpu_to_le64(ptr64[i]); |
| |
| if (qlcnic_pci_mem_write_2M(adapter, |
| flashaddr, data)) |
| return -EIO; |
| |
| flashaddr += 8; |
| } |
| |
| size = (__force u32)qlcnic_get_fw_size(adapter) % 8; |
| if (size) { |
| data = cpu_to_le64(ptr64[i]); |
| |
| if (qlcnic_pci_mem_write_2M(adapter, |
| flashaddr, data)) |
| return -EIO; |
| } |
| |
| } else { |
| u64 data; |
| u32 hi, lo; |
| |
| size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8; |
| flashaddr = QLCNIC_BOOTLD_START; |
| |
| for (i = 0; i < size; i++) { |
| if (qlcnic_rom_fast_read(adapter, |
| flashaddr, (int *)&lo) != 0) |
| return -EIO; |
| if (qlcnic_rom_fast_read(adapter, |
| flashaddr + 4, (int *)&hi) != 0) |
| return -EIO; |
| |
| data = (((u64)hi << 32) | lo); |
| |
| if (qlcnic_pci_mem_write_2M(adapter, |
| flashaddr, data)) |
| return -EIO; |
| |
| flashaddr += 8; |
| } |
| } |
| msleep(1); |
| |
| QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020); |
| QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e); |
| return 0; |
| } |
| |
| static int |
| qlcnic_validate_firmware(struct qlcnic_adapter *adapter) |
| { |
| __le32 val; |
| u32 ver, min_ver, bios, min_size; |
| struct pci_dev *pdev = adapter->pdev; |
| const struct firmware *fw = adapter->fw; |
| u8 fw_type = adapter->fw_type; |
| |
| if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) { |
| if (qlcnic_validate_unified_romimage(adapter)) |
| return -EINVAL; |
| |
| min_size = QLCNIC_UNI_FW_MIN_SIZE; |
| } else { |
| val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]); |
| if ((__force u32)val != QLCNIC_BDINFO_MAGIC) |
| return -EINVAL; |
| |
| min_size = QLCNIC_FW_MIN_SIZE; |
| } |
| |
| if (fw->size < min_size) |
| return -EINVAL; |
| |
| val = qlcnic_get_fw_version(adapter); |
| |
| min_ver = QLCNIC_VERSION_CODE(4, 0, 216); |
| |
| ver = QLCNIC_DECODE_VERSION(val); |
| |
| if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) { |
| dev_err(&pdev->dev, |
| "%s: firmware version %d.%d.%d unsupported\n", |
| fw_name[fw_type], _major(ver), _minor(ver), _build(ver)); |
| return -EINVAL; |
| } |
| |
| val = qlcnic_get_bios_version(adapter); |
| qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios); |
| if ((__force u32)val != bios) { |
| dev_err(&pdev->dev, "%s: firmware bios is incompatible\n", |
| fw_name[fw_type]); |
| return -EINVAL; |
| } |
| |
| /* check if flashed firmware is newer */ |
| if (qlcnic_rom_fast_read(adapter, |
| QLCNIC_FW_VERSION_OFFSET, (int *)&val)) |
| return -EIO; |
| |
| val = QLCNIC_DECODE_VERSION(val); |
| if (val > ver) { |
| dev_info(&pdev->dev, "%s: firmware is older than flash\n", |
| fw_name[fw_type]); |
| return -EINVAL; |
| } |
| |
| QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC); |
| return 0; |
| } |
| |
| static void |
| qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter) |
| { |
| u8 fw_type; |
| |
| switch (adapter->fw_type) { |
| case QLCNIC_UNKNOWN_ROMIMAGE: |
| fw_type = QLCNIC_UNIFIED_ROMIMAGE; |
| break; |
| |
| case QLCNIC_UNIFIED_ROMIMAGE: |
| default: |
| fw_type = QLCNIC_FLASH_ROMIMAGE; |
| break; |
| } |
| |
| adapter->fw_type = fw_type; |
| } |
| |
| |
| |
| void qlcnic_request_firmware(struct qlcnic_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| int rc; |
| |
| adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE; |
| |
| next: |
| qlcnic_get_next_fwtype(adapter); |
| |
| if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) { |
| adapter->fw = NULL; |
| } else { |
| rc = request_firmware(&adapter->fw, |
| fw_name[adapter->fw_type], &pdev->dev); |
| if (rc != 0) |
| goto next; |
| |
| rc = qlcnic_validate_firmware(adapter); |
| if (rc != 0) { |
| release_firmware(adapter->fw); |
| msleep(1); |
| goto next; |
| } |
| } |
| } |
| |
| |
| void |
| qlcnic_release_firmware(struct qlcnic_adapter *adapter) |
| { |
| if (adapter->fw) |
| release_firmware(adapter->fw); |
| adapter->fw = NULL; |
| } |
| |
| int qlcnic_phantom_init(struct qlcnic_adapter *adapter) |
| { |
| u32 val; |
| int retries = 60; |
| |
| do { |
| val = QLCRD32(adapter, CRB_CMDPEG_STATE); |
| |
| switch (val) { |
| case PHAN_INITIALIZE_COMPLETE: |
| case PHAN_INITIALIZE_ACK: |
| return 0; |
| case PHAN_INITIALIZE_FAILED: |
| goto out_err; |
| default: |
| break; |
| } |
| |
| msleep(500); |
| |
| } while (--retries); |
| |
| QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED); |
| |
| out_err: |
| dev_err(&adapter->pdev->dev, "firmware init failed\n"); |
| return -EIO; |
| } |
| |
| static int |
| qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter) |
| { |
| u32 val; |
| int retries = 2000; |
| |
| do { |
| val = QLCRD32(adapter, CRB_RCVPEG_STATE); |
| |
| if (val == PHAN_PEG_RCV_INITIALIZED) |
| return 0; |
| |
| msleep(10); |
| |
| } while (--retries); |
| |
| if (!retries) { |
| dev_err(&adapter->pdev->dev, "Receive Peg initialization not " |
| "complete, state: 0x%x.\n", val); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| int qlcnic_init_firmware(struct qlcnic_adapter *adapter) |
| { |
| int err; |
| |
| err = qlcnic_receive_peg_ready(adapter); |
| if (err) |
| return err; |
| |
| QLCWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); |
| QLCWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); |
| QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); |
| |
| return err; |
| } |
| |
| static void |
| qlcnic_handle_linkevent(struct qlcnic_adapter *adapter, |
| struct qlcnic_fw_msg *msg) |
| { |
| u32 cable_OUI; |
| u16 cable_len; |
| u16 link_speed; |
| u8 link_status, module, duplex, autoneg; |
| struct net_device *netdev = adapter->netdev; |
| |
| adapter->has_link_events = 1; |
| |
| cable_OUI = msg->body[1] & 0xffffffff; |
| cable_len = (msg->body[1] >> 32) & 0xffff; |
| link_speed = (msg->body[1] >> 48) & 0xffff; |
| |
| link_status = msg->body[2] & 0xff; |
| duplex = (msg->body[2] >> 16) & 0xff; |
| autoneg = (msg->body[2] >> 24) & 0xff; |
| |
| module = (msg->body[2] >> 8) & 0xff; |
| if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) |
| dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, " |
| "length %d\n", cable_OUI, cable_len); |
| else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) |
| dev_info(&netdev->dev, "unsupported cable length %d\n", |
| cable_len); |
| |
| qlcnic_advert_link_change(adapter, link_status); |
| |
| if (duplex == LINKEVENT_FULL_DUPLEX) |
| adapter->link_duplex = DUPLEX_FULL; |
| else |
| adapter->link_duplex = DUPLEX_HALF; |
| |
| adapter->module_type = module; |
| adapter->link_autoneg = autoneg; |
| adapter->link_speed = link_speed; |
| } |
| |
| static void |
| qlcnic_handle_fw_message(int desc_cnt, int index, |
| struct qlcnic_host_sds_ring *sds_ring) |
| { |
| struct qlcnic_fw_msg msg; |
| struct status_desc *desc; |
| int i = 0, opcode; |
| |
| while (desc_cnt > 0 && i < 8) { |
| desc = &sds_ring->desc_head[index]; |
| msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]); |
| msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]); |
| |
| index = get_next_index(index, sds_ring->num_desc); |
| desc_cnt--; |
| } |
| |
| opcode = qlcnic_get_nic_msg_opcode(msg.body[0]); |
| switch (opcode) { |
| case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: |
| qlcnic_handle_linkevent(sds_ring->adapter, &msg); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static int |
| qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_rds_ring *rds_ring, |
| struct qlcnic_rx_buffer *buffer) |
| { |
| struct sk_buff *skb; |
| dma_addr_t dma; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| buffer->skb = dev_alloc_skb(rds_ring->skb_size); |
| if (!buffer->skb) { |
| adapter->stats.skb_alloc_failure++; |
| return -ENOMEM; |
| } |
| |
| skb = buffer->skb; |
| |
| if (!adapter->ahw.cut_through) |
| skb_reserve(skb, 2); |
| |
| dma = pci_map_single(pdev, skb->data, |
| rds_ring->dma_size, PCI_DMA_FROMDEVICE); |
| |
| if (pci_dma_mapping_error(pdev, dma)) { |
| adapter->stats.rx_dma_map_error++; |
| dev_kfree_skb_any(skb); |
| buffer->skb = NULL; |
| return -ENOMEM; |
| } |
| |
| buffer->skb = skb; |
| buffer->dma = dma; |
| buffer->state = QLCNIC_BUFFER_BUSY; |
| |
| return 0; |
| } |
| |
| static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum) |
| { |
| struct qlcnic_rx_buffer *buffer; |
| struct sk_buff *skb; |
| |
| buffer = &rds_ring->rx_buf_arr[index]; |
| |
| pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, |
| PCI_DMA_FROMDEVICE); |
| |
| skb = buffer->skb; |
| if (!skb) { |
| adapter->stats.null_skb++; |
| goto no_skb; |
| } |
| |
| if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { |
| adapter->stats.csummed++; |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| } else { |
| skb->ip_summed = CHECKSUM_NONE; |
| } |
| |
| skb->dev = adapter->netdev; |
| |
| buffer->skb = NULL; |
| no_skb: |
| buffer->state = QLCNIC_BUFFER_FREE; |
| return skb; |
| } |
| |
| static struct qlcnic_rx_buffer * |
| qlcnic_process_rcv(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_sds_ring *sds_ring, |
| int ring, u64 sts_data0) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; |
| struct qlcnic_rx_buffer *buffer; |
| struct sk_buff *skb; |
| struct qlcnic_host_rds_ring *rds_ring; |
| int index, length, cksum, pkt_offset; |
| |
| if (unlikely(ring >= adapter->max_rds_rings)) |
| return NULL; |
| |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| |
| index = qlcnic_get_sts_refhandle(sts_data0); |
| if (unlikely(index >= rds_ring->num_desc)) |
| return NULL; |
| |
| buffer = &rds_ring->rx_buf_arr[index]; |
| |
| length = qlcnic_get_sts_totallength(sts_data0); |
| cksum = qlcnic_get_sts_status(sts_data0); |
| pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); |
| |
| skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); |
| if (!skb) |
| return buffer; |
| |
| if (length > rds_ring->skb_size) |
| skb_put(skb, rds_ring->skb_size); |
| else |
| skb_put(skb, length); |
| |
| if (pkt_offset) |
| skb_pull(skb, pkt_offset); |
| |
| skb->truesize = skb->len + sizeof(struct sk_buff); |
| skb->protocol = eth_type_trans(skb, netdev); |
| |
| napi_gro_receive(&sds_ring->napi, skb); |
| |
| adapter->stats.rx_pkts++; |
| adapter->stats.rxbytes += length; |
| |
| return buffer; |
| } |
| |
| #define QLC_TCP_HDR_SIZE 20 |
| #define QLC_TCP_TS_OPTION_SIZE 12 |
| #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE) |
| |
| static struct qlcnic_rx_buffer * |
| qlcnic_process_lro(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_sds_ring *sds_ring, |
| int ring, u64 sts_data0, u64 sts_data1) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; |
| struct qlcnic_rx_buffer *buffer; |
| struct sk_buff *skb; |
| struct qlcnic_host_rds_ring *rds_ring; |
| struct iphdr *iph; |
| struct tcphdr *th; |
| bool push, timestamp; |
| int l2_hdr_offset, l4_hdr_offset; |
| int index; |
| u16 lro_length, length, data_offset; |
| u32 seq_number; |
| |
| if (unlikely(ring > adapter->max_rds_rings)) |
| return NULL; |
| |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| |
| index = qlcnic_get_lro_sts_refhandle(sts_data0); |
| if (unlikely(index > rds_ring->num_desc)) |
| return NULL; |
| |
| buffer = &rds_ring->rx_buf_arr[index]; |
| |
| timestamp = qlcnic_get_lro_sts_timestamp(sts_data0); |
| lro_length = qlcnic_get_lro_sts_length(sts_data0); |
| l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0); |
| l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0); |
| push = qlcnic_get_lro_sts_push_flag(sts_data0); |
| seq_number = qlcnic_get_lro_sts_seq_number(sts_data1); |
| |
| skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); |
| if (!skb) |
| return buffer; |
| |
| if (timestamp) |
| data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE; |
| else |
| data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE; |
| |
| skb_put(skb, lro_length + data_offset); |
| |
| skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb); |
| |
| skb_pull(skb, l2_hdr_offset); |
| skb->protocol = eth_type_trans(skb, netdev); |
| |
| iph = (struct iphdr *)skb->data; |
| th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); |
| |
| length = (iph->ihl << 2) + (th->doff << 2) + lro_length; |
| iph->tot_len = htons(length); |
| iph->check = 0; |
| iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); |
| th->psh = push; |
| th->seq = htonl(seq_number); |
| |
| length = skb->len; |
| |
| netif_receive_skb(skb); |
| |
| adapter->stats.lro_pkts++; |
| adapter->stats.lrobytes += length; |
| |
| return buffer; |
| } |
| |
| int |
| qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max) |
| { |
| struct qlcnic_adapter *adapter = sds_ring->adapter; |
| struct list_head *cur; |
| struct status_desc *desc; |
| struct qlcnic_rx_buffer *rxbuf; |
| u64 sts_data0, sts_data1; |
| |
| int count = 0; |
| int opcode, ring, desc_cnt; |
| u32 consumer = sds_ring->consumer; |
| |
| while (count < max) { |
| desc = &sds_ring->desc_head[consumer]; |
| sts_data0 = le64_to_cpu(desc->status_desc_data[0]); |
| |
| if (!(sts_data0 & STATUS_OWNER_HOST)) |
| break; |
| |
| desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); |
| opcode = qlcnic_get_sts_opcode(sts_data0); |
| |
| switch (opcode) { |
| case QLCNIC_RXPKT_DESC: |
| case QLCNIC_OLD_RXPKT_DESC: |
| case QLCNIC_SYN_OFFLOAD: |
| ring = qlcnic_get_sts_type(sts_data0); |
| rxbuf = qlcnic_process_rcv(adapter, sds_ring, |
| ring, sts_data0); |
| break; |
| case QLCNIC_LRO_DESC: |
| ring = qlcnic_get_lro_sts_type(sts_data0); |
| sts_data1 = le64_to_cpu(desc->status_desc_data[1]); |
| rxbuf = qlcnic_process_lro(adapter, sds_ring, |
| ring, sts_data0, sts_data1); |
| break; |
| case QLCNIC_RESPONSE_DESC: |
| qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); |
| default: |
| goto skip; |
| } |
| |
| WARN_ON(desc_cnt > 1); |
| |
| if (rxbuf) |
| list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); |
| else |
| adapter->stats.null_rxbuf++; |
| |
| skip: |
| for (; desc_cnt > 0; desc_cnt--) { |
| desc = &sds_ring->desc_head[consumer]; |
| desc->status_desc_data[0] = |
| cpu_to_le64(STATUS_OWNER_PHANTOM); |
| consumer = get_next_index(consumer, sds_ring->num_desc); |
| } |
| count++; |
| } |
| |
| for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| struct qlcnic_host_rds_ring *rds_ring = |
| &adapter->recv_ctx.rds_rings[ring]; |
| |
| if (!list_empty(&sds_ring->free_list[ring])) { |
| list_for_each(cur, &sds_ring->free_list[ring]) { |
| rxbuf = list_entry(cur, |
| struct qlcnic_rx_buffer, list); |
| qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf); |
| } |
| spin_lock(&rds_ring->lock); |
| list_splice_tail_init(&sds_ring->free_list[ring], |
| &rds_ring->free_list); |
| spin_unlock(&rds_ring->lock); |
| } |
| |
| qlcnic_post_rx_buffers_nodb(adapter, rds_ring); |
| } |
| |
| if (count) { |
| sds_ring->consumer = consumer; |
| writel(consumer, sds_ring->crb_sts_consumer); |
| } |
| |
| return count; |
| } |
| |
| void |
| qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid, |
| struct qlcnic_host_rds_ring *rds_ring) |
| { |
| struct rcv_desc *pdesc; |
| struct qlcnic_rx_buffer *buffer; |
| int producer, count = 0; |
| struct list_head *head; |
| |
| spin_lock(&rds_ring->lock); |
| |
| producer = rds_ring->producer; |
| |
| head = &rds_ring->free_list; |
| while (!list_empty(head)) { |
| |
| buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); |
| |
| if (!buffer->skb) { |
| if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) |
| break; |
| } |
| |
| count++; |
| list_del(&buffer->list); |
| |
| /* make a rcv descriptor */ |
| pdesc = &rds_ring->desc_head[producer]; |
| pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
| pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
| pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
| |
| producer = get_next_index(producer, rds_ring->num_desc); |
| } |
| |
| if (count) { |
| rds_ring->producer = producer; |
| writel((producer-1) & (rds_ring->num_desc-1), |
| rds_ring->crb_rcv_producer); |
| } |
| spin_unlock(&rds_ring->lock); |
| } |
| |
| static void |
| qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_rds_ring *rds_ring) |
| { |
| struct rcv_desc *pdesc; |
| struct qlcnic_rx_buffer *buffer; |
| int producer, count = 0; |
| struct list_head *head; |
| |
| if (!spin_trylock(&rds_ring->lock)) |
| return; |
| |
| producer = rds_ring->producer; |
| |
| head = &rds_ring->free_list; |
| while (!list_empty(head)) { |
| |
| buffer = list_entry(head->next, struct qlcnic_rx_buffer, list); |
| |
| if (!buffer->skb) { |
| if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer)) |
| break; |
| } |
| |
| count++; |
| list_del(&buffer->list); |
| |
| /* make a rcv descriptor */ |
| pdesc = &rds_ring->desc_head[producer]; |
| pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
| pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
| pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
| |
| producer = get_next_index(producer, rds_ring->num_desc); |
| } |
| |
| if (count) { |
| rds_ring->producer = producer; |
| writel((producer - 1) & (rds_ring->num_desc - 1), |
| rds_ring->crb_rcv_producer); |
| } |
| spin_unlock(&rds_ring->lock); |
| } |
| |
| static struct qlcnic_rx_buffer * |
| qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter, |
| struct qlcnic_host_sds_ring *sds_ring, |
| int ring, u64 sts_data0) |
| { |
| struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; |
| struct qlcnic_rx_buffer *buffer; |
| struct sk_buff *skb; |
| struct qlcnic_host_rds_ring *rds_ring; |
| int index, length, cksum, pkt_offset; |
| |
| if (unlikely(ring >= adapter->max_rds_rings)) |
| return NULL; |
| |
| rds_ring = &recv_ctx->rds_rings[ring]; |
| |
| index = qlcnic_get_sts_refhandle(sts_data0); |
| if (unlikely(index >= rds_ring->num_desc)) |
| return NULL; |
| |
| buffer = &rds_ring->rx_buf_arr[index]; |
| |
| length = qlcnic_get_sts_totallength(sts_data0); |
| cksum = qlcnic_get_sts_status(sts_data0); |
| pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0); |
| |
| skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum); |
| if (!skb) |
| return buffer; |
| |
| skb_put(skb, rds_ring->skb_size); |
| |
| if (pkt_offset) |
| skb_pull(skb, pkt_offset); |
| |
| skb->truesize = skb->len + sizeof(struct sk_buff); |
| |
| if (!qlcnic_check_loopback_buff(skb->data)) |
| adapter->diag_cnt++; |
| |
| dev_kfree_skb_any(skb); |
| adapter->stats.rx_pkts++; |
| adapter->stats.rxbytes += length; |
| |
| return buffer; |
| } |
| |
| void |
| qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) |
| { |
| struct qlcnic_adapter *adapter = sds_ring->adapter; |
| struct status_desc *desc; |
| struct qlcnic_rx_buffer *rxbuf; |
| u64 sts_data0; |
| |
| int opcode, ring, desc_cnt; |
| u32 consumer = sds_ring->consumer; |
| |
| desc = &sds_ring->desc_head[consumer]; |
| sts_data0 = le64_to_cpu(desc->status_desc_data[0]); |
| |
| if (!(sts_data0 & STATUS_OWNER_HOST)) |
| return; |
| |
| desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0); |
| opcode = qlcnic_get_sts_opcode(sts_data0); |
| |
| ring = qlcnic_get_sts_type(sts_data0); |
| rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring, |
| ring, sts_data0); |
| |
| desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM); |
| consumer = get_next_index(consumer, sds_ring->num_desc); |
| |
| sds_ring->consumer = consumer; |
| writel(consumer, sds_ring->crb_sts_consumer); |
| } |