diff options
Diffstat (limited to 'drivers/net/qlcnic/qlcnic_init.c')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_init.c | 1898 |
1 files changed, 0 insertions, 1898 deletions
diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c deleted file mode 100644 index 3b6741e4754d..000000000000 --- a/drivers/net/qlcnic/qlcnic_init.c +++ /dev/null @@ -1,1898 +0,0 @@ -/* - * QLogic qlcnic NIC Driver - * Copyright (c) 2009-2010 QLogic Corporation - * - * See LICENSE.qlcnic for copyright and licensing details. - */ - -#include <linux/netdevice.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/if_vlan.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 int -qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter); - -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->skb == NULL) - continue; - - pci_unmap_single(adapter->pdev, - rx_buf->dma, - rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - - dev_kfree_skb_any(rx_buf->skb); - } - } -} - -void qlcnic_reset_rx_buffers_list(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]; - - INIT_LIST_HEAD(&rds_ring->free_list); - - 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++; - } - } -} - -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); - tx_ring->cmd_buf_arr = NULL; - kfree(adapter->tx_ring); - adapter->tx_ring = NULL; -} - -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 = vzalloc(TX_BUFF_RINGSIZE(tx_ring)); - if (cmd_buf_arr == NULL) { - dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n"); - goto err_out; - } - 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"); - goto err_out; - } - 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; - rds_ring->dma_size = QLCNIC_P3P_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_P3P_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; - } - rds_ring->rx_buf_arr = vzalloc(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; - } - 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++; - } - 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, - u32 addr, u32 *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, u32 addr, u32 *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; - - QLCWR32(adapter, CRB_CMDPEG_STATE, 0); - QLCWR32(adapter, CRB_RCVPEG_STATE, 0); - - qlcnic_rom_lock(adapter); - QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff); - qlcnic_rom_unlock(adapter); - - /* Init HW CRB block */ - 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); - - /* Initialize protocol process engine */ - QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e); - QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8); - QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8); - 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); - QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0); - QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0); - msleep(1); - QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0); - QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0); - return 0; -} - -static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter) -{ - u32 val; - int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT; - - 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(QLCNIC_CMDPEG_CHECK_DELAY); - - } while (--retries); - - QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED); - -out_err: - dev_err(&adapter->pdev->dev, "Command Peg initialization not " - "complete, state: 0x%x.\n", val); - return -EIO; -} - -static int -qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter) -{ - u32 val; - int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT; - - do { - val = QLCRD32(adapter, CRB_RCVPEG_STATE); - - if (val == PHAN_PEG_RCV_INITIALIZED) - return 0; - - msleep(QLCNIC_RCVPEG_CHECK_DELAY); - - } 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_check_fw_status(struct qlcnic_adapter *adapter) -{ - int err; - - err = qlcnic_cmd_peg_ready(adapter); - if (err) - return err; - - err = qlcnic_receive_peg_ready(adapter); - if (err) - return err; - - QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); - - return err; -} - -int -qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) { - - int timeo; - u32 val; - - val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO); - val = QLC_DEV_GET_DRV(val, adapter->portnum); - if ((val & 0x3) != QLCNIC_TYPE_NIC) { - dev_err(&adapter->pdev->dev, - "Not an Ethernet NIC func=%u\n", val); - return -EIO; - } - adapter->physical_port = (val >> 2); - if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo)) - timeo = QLCNIC_INIT_TIMEOUT_SECS; - - adapter->dev_init_timeo = timeo; - - if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo)) - timeo = QLCNIC_RESET_TIMEOUT_SECS; - - adapter->reset_ack_timeo = timeo; - - return 0; -} - -static int qlcnic_get_flt_entry(struct qlcnic_adapter *adapter, u8 region, - struct qlcnic_flt_entry *region_entry) -{ - struct qlcnic_flt_header flt_hdr; - struct qlcnic_flt_entry *flt_entry; - int i = 0, ret; - u32 entry_size; - - memset(region_entry, 0, sizeof(struct qlcnic_flt_entry)); - ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION, - (u8 *)&flt_hdr, - sizeof(struct qlcnic_flt_header)); - if (ret) { - dev_warn(&adapter->pdev->dev, - "error reading flash layout header\n"); - return -EIO; - } - - entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header); - flt_entry = (struct qlcnic_flt_entry *)vzalloc(entry_size); - if (flt_entry == NULL) { - dev_warn(&adapter->pdev->dev, "error allocating memory\n"); - return -EIO; - } - - ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION + - sizeof(struct qlcnic_flt_header), - (u8 *)flt_entry, entry_size); - if (ret) { - dev_warn(&adapter->pdev->dev, - "error reading flash layout entries\n"); - goto err_out; - } - - while (i < (entry_size/sizeof(struct qlcnic_flt_entry))) { - if (flt_entry[i].region == region) - break; - i++; - } - if (i >= (entry_size/sizeof(struct qlcnic_flt_entry))) { - dev_warn(&adapter->pdev->dev, - "region=%x not found in %d regions\n", region, i); - ret = -EIO; - goto err_out; - } - memcpy(region_entry, &flt_entry[i], sizeof(struct qlcnic_flt_entry)); - -err_out: - vfree(flt_entry); - return ret; -} - -int -qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter) -{ - struct qlcnic_flt_entry fw_entry; - u32 ver = -1, min_ver; - int ret; - - ret = qlcnic_get_flt_entry(adapter, QLCNIC_FW_IMAGE_REGION, &fw_entry); - if (!ret) - /* 0-4:-signature, 4-8:-fw version */ - qlcnic_rom_fast_read(adapter, fw_entry.start_addr + 4, - (int *)&ver); - else - qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, - (int *)&ver); - - ver = QLCNIC_DECODE_VERSION(ver); - min_ver = QLCNIC_MIN_FW_VERSION; - - if (ver < min_ver) { - dev_err(&adapter->pdev->dev, - "firmware version %d.%d.%d unsupported." - "Min supported version %d.%d.%d\n", - _major(ver), _minor(ver), _build(ver), - _major(min_ver), _minor(min_ver), _build(min_ver)); - return -EINVAL; - } - - return 0; -} - -static int -qlcnic_has_mn(struct qlcnic_adapter *adapter) -{ - u32 capability; - capability = 0; - - 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); -} - -static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter) -{ - if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID)) - dev_info(&adapter->pdev->dev, "Resetting rom_lock\n"); - - qlcnic_pcie_sem_unlock(adapter, 2); -} - -static int -qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter) -{ - u32 heartbeat, ret = -EIO; - int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT; - - adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); - - do { - msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS); - heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); - if (heartbeat != adapter->heartbeat) { - ret = QLCNIC_RCODE_SUCCESS; - break; - } - } while (--retries); - - return ret; -} - -int -qlcnic_need_fw_reset(struct qlcnic_adapter *adapter) -{ - if ((adapter->flags & QLCNIC_FW_HANG) || - qlcnic_check_fw_hearbeat(adapter)) { - qlcnic_rom_lock_recovery(adapter); - return 1; - } - - if (adapter->need_fw_reset) - return 1; - - if (adapter->fw) - 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; - int ret; - struct qlcnic_flt_entry bootld_entry; - - ret = qlcnic_get_flt_entry(adapter, QLCNIC_BOOTLD_REGION, - &bootld_entry); - if (!ret) { - size = bootld_entry.size / 8; - flashaddr = bootld_entry.start_addr; - } else { - size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8; - flashaddr = QLCNIC_BOOTLD_START; - dev_info(&pdev->dev, - "using legacy method to get flash fw region"); - } - - 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, 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); - ver = QLCNIC_DECODE_VERSION(val); - - if (ver < QLCNIC_MIN_FW_VERSION) { - 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; - } - - 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; -} - -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; - u8 lb_status = 0; - 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; - lb_status = (msg->body[2] >> 32) & 0x3; - - 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); - - if (!link_status && (lb_status == QLCNIC_ILB_MODE || - lb_status == QLCNIC_ELB_MODE)) - adapter->ahw->loopback_state |= QLCNIC_LINKEVENT; - - 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; - struct qlcnic_adapter *adapter; - struct device *dev; - int i = 0, opcode, ret; - - 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--; - } - - adapter = sds_ring->adapter; - dev = &adapter->pdev->dev; - opcode = qlcnic_get_nic_msg_opcode(msg.body[0]); - - switch (opcode) { - case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: - qlcnic_handle_linkevent(adapter, &msg); - break; - case QLCNIC_C2H_OPCODE_CONFIG_LOOPBACK: - ret = (u32)(msg.body[1]); - switch (ret) { - case 0: - adapter->ahw->loopback_state |= QLCNIC_LB_RESPONSE; - break; - case 1: - dev_info(dev, "loopback already in progress\n"); - adapter->diag_cnt = -QLCNIC_TEST_IN_PROGRESS; - break; - case 2: - dev_info(dev, "loopback cable is not connected\n"); - adapter->diag_cnt = -QLCNIC_LB_CABLE_NOT_CONN; - break; - default: - dev_info(dev, "loopback configure request failed," - " ret %x\n", ret); - adapter->diag_cnt = -QLCNIC_UNDEFINED_ERROR; - break; - } - 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; - - skb = dev_alloc_skb(rds_ring->skb_size); - if (!skb) { - adapter->stats.skb_alloc_failure++; - return -ENOMEM; - } - - skb_reserve(skb, NET_IP_ALIGN); - - 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); - return -ENOMEM; - } - - buffer->skb = skb; - buffer->dma = dma; - - 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]; - - if (unlikely(buffer->skb == NULL)) { - WARN_ON(1); - return NULL; - } - - pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - - skb = buffer->skb; - - if (likely((adapter->netdev->features & NETIF_F_RXCSUM) && - (cksum == STATUS_CKSUM_OK || cksum == STATUS_CKSUM_LOOP))) { - adapter->stats.csummed++; - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else { - skb_checksum_none_assert(skb); - } - - skb->dev = adapter->netdev; - - buffer->skb = NULL; - - return skb; -} - -static inline int -qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb, - u16 *vlan_tag) -{ - struct ethhdr *eth_hdr; - - if (!__vlan_get_tag(skb, vlan_tag)) { - eth_hdr = (struct ethhdr *) skb->data; - memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2); - skb_pull(skb, VLAN_HLEN); - } - if (!adapter->pvid) - return 0; - - if (*vlan_tag == adapter->pvid) { - /* Outer vlan tag. Packet should follow non-vlan path */ - *vlan_tag = 0xffff; - return 0; - } - if (adapter->flags & QLCNIC_TAGGING_ENABLED) - return 0; - - return -EINVAL; -} - -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; - u16 vid = 0xffff; - - 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); - - if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { - adapter->stats.rxdropped++; - dev_kfree_skb(skb); - return buffer; - } - - skb->protocol = eth_type_trans(skb, netdev); - - if (vid != 0xffff) - __vlan_hwaccel_put_tag(skb, vid); - - 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; - u16 vid = 0xffff; - - 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_pull(skb, l2_hdr_offset); - - if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) { - adapter->stats.rxdropped++; - dev_kfree_skb(skb); - return buffer; - } - - 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; - - if (vid != 0xffff) - __vlan_hwaccel_put_tag(skb, vid); - 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 (likely(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, - struct qlcnic_host_rds_ring *rds_ring) -{ - struct rcv_desc *pdesc; - struct qlcnic_rx_buffer *buffer; - int count = 0; - u32 producer; - struct list_head *head; - - 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); - } -} - -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 count = 0; - uint32_t producer; - 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 void dump_skb(struct sk_buff *skb) -{ - int i; - unsigned char *data = skb->data; - - printk(KERN_INFO "\n"); - for (i = 0; i < skb->len; i++) { - printk(KERN_INFO "%02x ", data[i]); - if ((i & 0x0f) == 8) - printk(KERN_INFO "\n"); - } -} - -void 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 sk_buff *skb; - struct qlcnic_host_rds_ring *rds_ring; - int index, length, cksum, pkt_offset; - - if (unlikely(ring >= adapter->max_rds_rings)) - return; - - rds_ring = &recv_ctx->rds_rings[ring]; - - index = qlcnic_get_sts_refhandle(sts_data0); - length = qlcnic_get_sts_totallength(sts_data0); - if (unlikely(index >= rds_ring->num_desc)) - return; - - 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; - - 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); - - if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr)) - adapter->diag_cnt++; - else - dump_skb(skb); - - dev_kfree_skb_any(skb); - adapter->stats.rx_pkts++; - adapter->stats.rxbytes += length; - - return; -} - -void -qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring) -{ - struct qlcnic_adapter *adapter = sds_ring->adapter; - struct status_desc *desc; - u64 sts_data0; - int ring, opcode, 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); - switch (opcode) { - case QLCNIC_RESPONSE_DESC: - qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring); - break; - default: - ring = qlcnic_get_sts_type(sts_data0); - qlcnic_process_rcv_diag(adapter, sds_ring, ring, sts_data0); - break; - } - - 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); - } - - sds_ring->consumer = consumer; - writel(consumer, sds_ring->crb_sts_consumer); -} - -void -qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2, - u8 alt_mac, u8 *mac) -{ - u32 mac_low, mac_high; - int i; - - mac_low = QLCRD32(adapter, off1); - mac_high = QLCRD32(adapter, off2); - - if (alt_mac) { - mac_low |= (mac_low >> 16) | (mac_high << 16); - mac_high >>= 16; - } - - for (i = 0; i < 2; i++) - mac[i] = (u8)(mac_high >> ((1 - i) * 8)); - for (i = 2; i < 6; i++) - mac[i] = (u8)(mac_low >> ((5 - i) * 8)); -} |