diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_init.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 1949 |
1 files changed, 0 insertions, 1949 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c deleted file mode 100644 index d6c6357de6aa..000000000000 --- a/drivers/net/netxen/netxen_nic_init.c +++ /dev/null @@ -1,1949 +0,0 @@ -/* - * Copyright (C) 2003 - 2009 NetXen, Inc. - * 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 <linux/if_vlan.h> -#include "netxen_nic.h" -#include "netxen_nic_hw.h" - -struct crb_addr_pair { - u32 addr; - u32 data; -}; - -#define NETXEN_MAX_CRB_XFORM 60 -static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; -#define NETXEN_ADDR_ERROR (0xffffffff) - -#define crb_addr_transform(name) \ - crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ - NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 - -#define NETXEN_NIC_XDMA_RESET 0x8000ff - -static void -netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, - struct nx_host_rds_ring *rds_ring); -static int netxen_p3_has_mn(struct netxen_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 netxen_release_rx_buffers(struct netxen_adapter *adapter) -{ - struct netxen_recv_context *recv_ctx; - struct nx_host_rds_ring *rds_ring; - struct netxen_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 == NETXEN_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 netxen_release_tx_buffers(struct netxen_adapter *adapter) -{ - struct netxen_cmd_buffer *cmd_buf; - struct netxen_skb_frag *buffrag; - int i, j; - struct nx_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 netxen_free_sw_resources(struct netxen_adapter *adapter) -{ - struct netxen_recv_context *recv_ctx; - struct nx_host_rds_ring *rds_ring; - struct nx_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(tx_ring); - adapter->tx_ring = NULL; -} - -int netxen_alloc_sw_resources(struct netxen_adapter *adapter) -{ - struct netxen_recv_context *recv_ctx; - struct nx_host_rds_ring *rds_ring; - struct nx_host_sds_ring *sds_ring; - struct nx_host_tx_ring *tx_ring; - struct netxen_rx_buffer *rx_buf; - int ring, i, size; - - struct netxen_cmd_buffer *cmd_buf_arr; - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - - size = sizeof(struct nx_host_tx_ring); - tx_ring = kzalloc(size, GFP_KERNEL); - if (tx_ring == NULL) { - dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n", - netdev->name); - 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(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", - netdev->name); - goto err_out; - } - tx_ring->cmd_buf_arr = cmd_buf_arr; - - recv_ctx = &adapter->recv_ctx; - - size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring); - rds_ring = kzalloc(size, GFP_KERNEL); - if (rds_ring == NULL) { - dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n", - netdev->name); - 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; - if (adapter->ahw.cut_through) { - rds_ring->dma_size = - NX_CT_DEFAULT_RX_BUF_LEN; - rds_ring->skb_size = - NX_CT_DEFAULT_RX_BUF_LEN; - } else { - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - rds_ring->dma_size = - NX_P3_RX_BUF_MAX_LEN; - else - rds_ring->dma_size = - NX_P2_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; - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - rds_ring->dma_size = - NX_P3_RX_JUMBO_BUF_MAX_LEN; - else - rds_ring->dma_size = - NX_P2_RX_JUMBO_BUF_MAX_LEN; - - if (adapter->capabilities & NX_CAP0_HW_LRO) - rds_ring->dma_size += NX_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 = NX_RX_LRO_BUFFER_LENGTH; - 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) { - printk(KERN_ERR "%s: Failed to allocate " - "rx buffer ring %d\n", - netdev->name, ring); - /* free whatever was already allocated */ - 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->state = NETXEN_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: - netxen_free_sw_resources(adapter); - return -ENOMEM; -} - -/* - * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB - * address to external PCI CRB address. - */ -static u32 netxen_decode_crb_addr(u32 addr) -{ - int i; - u32 base_addr, offset, pci_base; - - crb_addr_transform_setup(); - - pci_base = NETXEN_ADDR_ERROR; - base_addr = addr & 0xfff00000; - offset = addr & 0x000fffff; - - for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { - if (crb_addr_xform[i] == base_addr) { - pci_base = i << 20; - break; - } - } - if (pci_base == NETXEN_ADDR_ERROR) - return pci_base; - else - return pci_base + offset; -} - -#define NETXEN_MAX_ROM_WAIT_USEC 100 - -static int netxen_wait_rom_done(struct netxen_adapter *adapter) -{ - long timeout = 0; - long done = 0; - - cond_resched(); - - while (done == 0) { - done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS); - done &= 2; - if (++timeout >= NETXEN_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 netxen_adapter *adapter, - int addr, int *valp) -{ - NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); - NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); - NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); - if (netxen_wait_rom_done(adapter)) { - printk("Error waiting for rom done\n"); - return -EIO; - } - /* reset abyte_cnt and dummy_byte_cnt */ - NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - udelay(10); - NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); - - *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA); - return 0; -} - -static int do_rom_fast_read_words(struct netxen_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 -netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, - u8 *bytes, size_t size) -{ - int ret; - - ret = netxen_rom_lock(adapter); - if (ret < 0) - return ret; - - ret = do_rom_fast_read_words(adapter, addr, bytes, size); - - netxen_rom_unlock(adapter); - return ret; -} - -int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) -{ - int ret; - - if (netxen_rom_lock(adapter) != 0) - return -EIO; - - ret = do_rom_fast_read(adapter, addr, valp); - netxen_rom_unlock(adapter); - return ret; -} - -#define NETXEN_BOARDTYPE 0x4008 -#define NETXEN_BOARDNUM 0x400c -#define NETXEN_CHIPNUM 0x4010 - -int netxen_pinit_from_rom(struct netxen_adapter *adapter) -{ - int addr, val; - int i, n, init_delay = 0; - struct crb_addr_pair *buf; - unsigned offset; - u32 off; - - /* resetall */ - netxen_rom_lock(adapter); - NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff); - netxen_rom_unlock(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - if (netxen_rom_fast_read(adapter, 0, &n) != 0 || - (n != 0xcafecafe) || - netxen_rom_fast_read(adapter, 4, &n) != 0) { - printk(KERN_ERR "%s: ERROR Reading crb_init area: " - "n: %08x\n", netxen_nic_driver_name, n); - return -EIO; - } - offset = n & 0xffffU; - n = (n >> 16) & 0xffffU; - } else { - if (netxen_rom_fast_read(adapter, 0, &n) != 0 || - !(n & 0x80000000)) { - printk(KERN_ERR "%s: ERROR Reading crb_init area: " - "n: %08x\n", netxen_nic_driver_name, n); - return -EIO; - } - offset = 1; - n &= ~0x80000000; - } - - if (n >= 1024) { - printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not" - " initialized.\n", __func__, n); - return -EIO; - } - - buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); - if (buf == NULL) { - printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n", - netxen_nic_driver_name); - return -ENOMEM; - } - - for (i = 0; i < n; i++) { - if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || - netxen_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 = netxen_decode_crb_addr(buf[i].addr); - if (off == NETXEN_ADDR_ERROR) { - printk(KERN_ERR"CRB init value out of range %x\n", - buf[i].addr); - continue; - } - off += NETXEN_PCI_CRBSPACE; - - if (off & 1) - continue; - - /* skipping cold reboot MAGIC */ - if (off == NETXEN_CAM_RAM(0x1fc)) - continue; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - if (off == (NETXEN_CRB_I2C0 + 0x1c)) - continue; - /* do not reset PCI */ - if (off == (ROMUSB_GLB + 0xbc)) - 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) == NETXEN_CRB_DDR_NET) - continue; - if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) && - !NX_IS_REVISION_P3P(adapter->ahw.revision_id)) - buf[i].data = 0x1020; - /* skip the function enable register */ - if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION)) - continue; - if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2)) - continue; - if ((off & 0x0ff00000) == NETXEN_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 == NETXEN_ROMUSB_GLB_SW_RESET) { - init_delay = 1000; - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - /* hold xdma in reset also */ - buf[i].data = NETXEN_NIC_XDMA_RESET; - buf[i].data = 0x8000ff; - } - } - - NXWR32(adapter, off, buf[i].data); - - msleep(init_delay); - } - kfree(buf); - - /* disable_peg_cache_all */ - - /* unreset_net_cache */ - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); - NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); - } - - /* p2dn replyCount */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); - /* disable_peg_cache 0 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); - /* disable_peg_cache 1 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); - - /* peg_clr_all */ - - /* peg_clr 0 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); - NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); - /* peg_clr 1 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); - NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); - /* peg_clr 2 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); - NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); - /* peg_clr 3 */ - NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); - NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0); - return 0; -} - -static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section) -{ - uint32_t 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 QLCNIC_FILEHEADER_SIZE (14 * 4) - -static int -netxen_nic_validate_header(struct netxen_adapter *adapter) - { - const u8 *unirom = adapter->fw->data; - struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0]; - u32 fw_file_size = adapter->fw->size; - u32 tab_size; - __le32 entries; - __le32 entry_size; - - if (fw_file_size < QLCNIC_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 -netxen_nic_validate_bootld(struct netxen_adapter *adapter) -{ - struct uni_table_desc *tab_desc; - struct uni_data_desc *descr; - const u8 *unirom = adapter->fw->data; - __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + - NX_UNI_BOOTLD_IDX_OFF)); - u32 offs; - u32 tab_size; - u32 data_size; - - tab_desc = nx_get_table_desc(unirom, NX_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 -netxen_nic_validate_fw(struct netxen_adapter *adapter) -{ - struct uni_table_desc *tab_desc; - struct uni_data_desc *descr; - const u8 *unirom = adapter->fw->data; - __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + - NX_UNI_FIRMWARE_IDX_OFF)); - u32 offs; - u32 tab_size; - u32 data_size; - - tab_desc = nx_get_table_desc(unirom, NX_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 -netxen_nic_validate_product_offs(struct netxen_adapter *adapter) -{ - struct uni_table_desc *ptab_descr; - const u8 *unirom = adapter->fw->data; - int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ? - 1 : netxen_p3_has_mn(adapter); - __le32 entries; - __le32 entry_size; - u32 tab_size; - u32 i; - - ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL); - if (ptab_descr == NULL) - 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; - uint32_t flagbit; - - offs = cpu_to_le32(ptab_descr->findex) + - (i * cpu_to_le32(ptab_descr->entry_size)); - flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF)); - file_chiprev = cpu_to_le32(*((int *)&unirom[offs] + - NX_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 && NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - mn_present = 0; - goto nomn; - } - - return -EINVAL; -} - -static int -netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter) -{ - if (netxen_nic_validate_header(adapter)) { - dev_err(&adapter->pdev->dev, - "unified image: header validation failed\n"); - return -EINVAL; - } - - if (netxen_nic_validate_product_offs(adapter)) { - dev_err(&adapter->pdev->dev, - "unified image: product validation failed\n"); - return -EINVAL; - } - - if (netxen_nic_validate_bootld(adapter)) { - dev_err(&adapter->pdev->dev, - "unified image: bootld validation failed\n"); - return -EINVAL; - } - - if (netxen_nic_validate_fw(adapter)) { - dev_err(&adapter->pdev->dev, - "unified image: firmware validation failed\n"); - return -EINVAL; - } - - return 0; -} - -static struct uni_data_desc *nx_get_data_desc(struct netxen_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 = nx_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 * -nx_get_bootld_offs(struct netxen_adapter *adapter) -{ - u32 offs = NETXEN_BOOTLD_START; - - if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) - offs = cpu_to_le32((nx_get_data_desc(adapter, - NX_UNI_DIR_SECT_BOOTLD, - NX_UNI_BOOTLD_IDX_OFF))->findex); - - return (u8 *)&adapter->fw->data[offs]; -} - -static u8 * -nx_get_fw_offs(struct netxen_adapter *adapter) -{ - u32 offs = NETXEN_IMAGE_START; - - if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) - offs = cpu_to_le32((nx_get_data_desc(adapter, - NX_UNI_DIR_SECT_FW, - NX_UNI_FIRMWARE_IDX_OFF))->findex); - - return (u8 *)&adapter->fw->data[offs]; -} - -static __le32 -nx_get_fw_size(struct netxen_adapter *adapter) -{ - if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) - return cpu_to_le32((nx_get_data_desc(adapter, - NX_UNI_DIR_SECT_FW, - NX_UNI_FIRMWARE_IDX_OFF))->size); - else - return cpu_to_le32( - *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]); -} - -static __le32 -nx_get_fw_version(struct netxen_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 = 0; - - if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) { - - fw_data_desc = nx_get_data_desc(adapter, - NX_UNI_DIR_SECT_FW, NX_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); - break; - } - } - - if (ret != 3) - return 0; - - return major + (minor << 8) + (sub << 16); - - } else - return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]); -} - -static __le32 -nx_get_bios_version(struct netxen_adapter *adapter) -{ - const struct firmware *fw = adapter->fw; - __le32 bios_ver, prd_off = adapter->file_prd_off; - - if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) { - bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off]) - + NX_UNI_BIOS_VERSION_OFF)); - return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + - (bios_ver >> 24); - } else - return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]); - -} - -int -netxen_need_fw_reset(struct netxen_adapter *adapter) -{ - u32 count, old_count; - u32 val, version, major, minor, build; - int i, timeout; - u8 fw_type; - - /* NX2031 firmware doesn't support heartbit */ - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 1; - - if (adapter->need_fw_reset) - return 1; - - /* last attempt had failed */ - if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED) - return 1; - - old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); - - for (i = 0; i < 10; i++) { - - timeout = msleep_interruptible(200); - if (timeout) { - NXWR32(adapter, CRB_CMDPEG_STATE, - PHAN_INITIALIZE_FAILED); - return -EINTR; - } - - count = NXRD32(adapter, NETXEN_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 = nx_get_fw_version(adapter); - - version = NETXEN_DECODE_VERSION(val); - - major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); - minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); - build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); - - if (version > NETXEN_VERSION_CODE(major, minor, build)) - return 1; - - if (version == NETXEN_VERSION_CODE(major, minor, build) && - adapter->fw_type != NX_UNIFIED_ROMIMAGE) { - - val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL); - fw_type = (val & 0x4) ? - NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE; - - if (adapter->fw_type != fw_type) - return 1; - } - } - - return 0; -} - -#define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505) - -int -netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter) -{ - u32 flash_fw_ver, min_fw_ver; - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 0; - - if (netxen_rom_fast_read(adapter, - NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) { - dev_err(&adapter->pdev->dev, "Unable to read flash fw" - "version\n"); - return -EIO; - } - - flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver); - min_fw_ver = NETXEN_MIN_P3_FW_SUPP; - if (flash_fw_ver >= min_fw_ver) - return 0; - - dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported" - "[4.0.505]. Please update firmware on flash\n", - _major(flash_fw_ver), _minor(flash_fw_ver), - _build(flash_fw_ver)); - return -EINVAL; -} - -static char *fw_name[] = { - NX_P2_MN_ROMIMAGE_NAME, - NX_P3_CT_ROMIMAGE_NAME, - NX_P3_MN_ROMIMAGE_NAME, - NX_UNIFIED_ROMIMAGE_NAME, - NX_FLASH_ROMIMAGE_NAME, -}; - -int -netxen_load_firmware(struct netxen_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 (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1); - - if (fw) { - __le64 data; - - size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8; - - ptr64 = (u64 *)nx_get_bootld_offs(adapter); - flashaddr = NETXEN_BOOTLD_START; - - for (i = 0; i < size; i++) { - data = cpu_to_le64(ptr64[i]); - - if (adapter->pci_mem_write(adapter, flashaddr, data)) - return -EIO; - - flashaddr += 8; - } - - size = (__force u32)nx_get_fw_size(adapter) / 8; - - ptr64 = (u64 *)nx_get_fw_offs(adapter); - flashaddr = NETXEN_IMAGE_START; - - for (i = 0; i < size; i++) { - data = cpu_to_le64(ptr64[i]); - - if (adapter->pci_mem_write(adapter, - flashaddr, data)) - return -EIO; - - flashaddr += 8; - } - - size = (__force u32)nx_get_fw_size(adapter) % 8; - if (size) { - data = cpu_to_le64(ptr64[i]); - - if (adapter->pci_mem_write(adapter, - flashaddr, data)) - return -EIO; - } - - } else { - u64 data; - u32 hi, lo; - - size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8; - flashaddr = NETXEN_BOOTLD_START; - - for (i = 0; i < size; i++) { - if (netxen_rom_fast_read(adapter, - flashaddr, (int *)&lo) != 0) - return -EIO; - if (netxen_rom_fast_read(adapter, - flashaddr + 4, (int *)&hi) != 0) - return -EIO; - - /* hi, lo are already in host endian byteorder */ - data = (((u64)hi << 32) | lo); - - if (adapter->pci_mem_write(adapter, - flashaddr, data)) - return -EIO; - - flashaddr += 8; - } - } - msleep(1); - - if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { - NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020); - NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e); - } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d); - else { - NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff); - NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0); - } - - return 0; -} - -static int -netxen_validate_firmware(struct netxen_adapter *adapter) -{ - __le32 val; - __le32 flash_fw_ver; - u32 file_fw_ver, min_ver, bios; - struct pci_dev *pdev = adapter->pdev; - const struct firmware *fw = adapter->fw; - u8 fw_type = adapter->fw_type; - u32 crbinit_fix_fw; - - if (fw_type == NX_UNIFIED_ROMIMAGE) { - if (netxen_nic_validate_unified_romimage(adapter)) - return -EINVAL; - } else { - val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]); - if ((__force u32)val != NETXEN_BDINFO_MAGIC) - return -EINVAL; - - if (fw->size < NX_FW_MIN_SIZE) - return -EINVAL; - } - - val = nx_get_fw_version(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - min_ver = NETXEN_MIN_P3_FW_SUPP; - else - min_ver = NETXEN_VERSION_CODE(3, 4, 216); - - file_fw_ver = NETXEN_DECODE_VERSION(val); - - if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) || - (file_fw_ver < min_ver)) { - dev_err(&pdev->dev, - "%s: firmware version %d.%d.%d unsupported\n", - fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver), - _build(file_fw_ver)); - return -EINVAL; - } - - val = nx_get_bios_version(adapter); - netxen_rom_fast_read(adapter, NX_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; - } - - if (netxen_rom_fast_read(adapter, - NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) { - dev_err(&pdev->dev, "Unable to read flash fw version\n"); - return -EIO; - } - flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver); - - /* New fw from file is not allowed, if fw on flash is < 4.0.554 */ - crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554); - if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw && - NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - dev_err(&pdev->dev, "Incompatibility detected between driver " - "and firmware version on flash. This configuration " - "is not recommended. Please update the firmware on " - "flash immediately\n"); - return -EINVAL; - } - - /* check if flashed firmware is newer only for no-mn and P2 case*/ - if (!netxen_p3_has_mn(adapter) || - NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - if (flash_fw_ver > file_fw_ver) { - dev_info(&pdev->dev, "%s: firmware is older than flash\n", - fw_name[fw_type]); - return -EINVAL; - } - } - - NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); - return 0; -} - -static void -nx_get_next_fwtype(struct netxen_adapter *adapter) -{ - u8 fw_type; - - switch (adapter->fw_type) { - case NX_UNKNOWN_ROMIMAGE: - fw_type = NX_UNIFIED_ROMIMAGE; - break; - - case NX_UNIFIED_ROMIMAGE: - if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) - fw_type = NX_FLASH_ROMIMAGE; - else if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - fw_type = NX_P2_MN_ROMIMAGE; - else if (netxen_p3_has_mn(adapter)) - fw_type = NX_P3_MN_ROMIMAGE; - else - fw_type = NX_P3_CT_ROMIMAGE; - break; - - case NX_P3_MN_ROMIMAGE: - fw_type = NX_P3_CT_ROMIMAGE; - break; - - case NX_P2_MN_ROMIMAGE: - case NX_P3_CT_ROMIMAGE: - default: - fw_type = NX_FLASH_ROMIMAGE; - break; - } - - adapter->fw_type = fw_type; -} - -static int -netxen_p3_has_mn(struct netxen_adapter *adapter) -{ - u32 capability, flashed_ver; - capability = 0; - - /* NX2031 always had MN */ - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 1; - - netxen_rom_fast_read(adapter, - NX_FW_VERSION_OFFSET, (int *)&flashed_ver); - flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); - - if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) { - - capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY); - if (capability & NX_PEG_TUNE_MN_PRESENT) - return 1; - } - return 0; -} - -void netxen_request_firmware(struct netxen_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - int rc = 0; - - adapter->fw_type = NX_UNKNOWN_ROMIMAGE; - -next: - nx_get_next_fwtype(adapter); - - if (adapter->fw_type == NX_FLASH_ROMIMAGE) { - adapter->fw = NULL; - } else { - rc = request_firmware(&adapter->fw, - fw_name[adapter->fw_type], &pdev->dev); - if (rc != 0) - goto next; - - rc = netxen_validate_firmware(adapter); - if (rc != 0) { - release_firmware(adapter->fw); - msleep(1); - goto next; - } - } -} - - -void -netxen_release_firmware(struct netxen_adapter *adapter) -{ - if (adapter->fw) - release_firmware(adapter->fw); - adapter->fw = NULL; -} - -int netxen_init_dummy_dma(struct netxen_adapter *adapter) -{ - u64 addr; - u32 hi, lo; - - if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 0; - - adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev, - NETXEN_HOST_DUMMY_DMA_SIZE, - &adapter->dummy_dma.phys_addr); - if (adapter->dummy_dma.addr == NULL) { - dev_err(&adapter->pdev->dev, - "ERROR: Could not allocate dummy DMA memory\n"); - return -ENOMEM; - } - - addr = (uint64_t) adapter->dummy_dma.phys_addr; - hi = (addr >> 32) & 0xffffffff; - lo = addr & 0xffffffff; - - NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); - NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo); - - return 0; -} - -/* - * NetXen DMA watchdog control: - * - * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive - * Bit 1 : disable_request => 1 req disable dma watchdog - * Bit 2 : enable_request => 1 req enable dma watchdog - * Bit 3-31 : unused - */ -void netxen_free_dummy_dma(struct netxen_adapter *adapter) -{ - int i = 100; - u32 ctrl; - - if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return; - - if (!adapter->dummy_dma.addr) - return; - - ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL); - if ((ctrl & 0x1) != 0) { - NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2)); - - while ((ctrl & 0x1) != 0) { - - msleep(50); - - ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL); - - if (--i == 0) - break; - } - } - - if (i) { - pci_free_consistent(adapter->pdev, - NETXEN_HOST_DUMMY_DMA_SIZE, - adapter->dummy_dma.addr, - adapter->dummy_dma.phys_addr); - adapter->dummy_dma.addr = NULL; - } else - dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n"); -} - -int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) -{ - u32 val = 0; - int retries = 60; - - if (pegtune_val) - return 0; - - do { - val = NXRD32(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); - - NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED); - -out_err: - dev_warn(&adapter->pdev->dev, "firmware init failed\n"); - return -EIO; -} - -static int -netxen_receive_peg_ready(struct netxen_adapter *adapter) -{ - u32 val = 0; - int retries = 2000; - - do { - val = NXRD32(adapter, CRB_RCVPEG_STATE); - - if (val == PHAN_PEG_RCV_INITIALIZED) - return 0; - - msleep(10); - - } while (--retries); - - if (!retries) { - printk(KERN_ERR "Receive Peg initialization not " - "complete, state: 0x%x.\n", val); - return -EIO; - } - - return 0; -} - -int netxen_init_firmware(struct netxen_adapter *adapter) -{ - int err; - - err = netxen_receive_peg_ready(adapter); - if (err) - return err; - - NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); - NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); - NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); - - return err; -} - -static void -netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *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) { - printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n", - netdev->name, cable_OUI, cable_len); - } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) { - printk(KERN_INFO "%s: unsupported cable length %d\n", - netdev->name, cable_len); - } - - netxen_advert_link_change(adapter, link_status); - - /* update link parameters */ - 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 -netxen_handle_fw_message(int desc_cnt, int index, - struct nx_host_sds_ring *sds_ring) -{ - nx_fw_msg_t 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 = netxen_get_nic_msg_opcode(msg.body[0]); - switch (opcode) { - case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: - netxen_handle_linkevent(sds_ring->adapter, &msg); - break; - default: - break; - } -} - -static int -netxen_alloc_rx_skb(struct netxen_adapter *adapter, - struct nx_host_rds_ring *rds_ring, - struct netxen_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) - return 1; - - 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)) { - dev_kfree_skb_any(skb); - buffer->skb = NULL; - return 1; - } - - buffer->skb = skb; - buffer->dma = dma; - buffer->state = NETXEN_BUFFER_BUSY; - - return 0; -} - -static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter, - struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum) -{ - struct netxen_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) - goto no_skb; - - if (likely((adapter->netdev->features & NETIF_F_RXCSUM) - && 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 = NETXEN_BUFFER_FREE; - return skb; -} - -static struct netxen_rx_buffer * -netxen_process_rcv(struct netxen_adapter *adapter, - struct nx_host_sds_ring *sds_ring, - int ring, u64 sts_data0) -{ - struct net_device *netdev = adapter->netdev; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - struct netxen_rx_buffer *buffer; - struct sk_buff *skb; - struct nx_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 = netxen_get_sts_refhandle(sts_data0); - if (unlikely(index >= rds_ring->num_desc)) - return NULL; - - buffer = &rds_ring->rx_buf_arr[index]; - - length = netxen_get_sts_totallength(sts_data0); - cksum = netxen_get_sts_status(sts_data0); - pkt_offset = netxen_get_sts_pkt_offset(sts_data0); - - skb = netxen_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->protocol = eth_type_trans(skb, netdev); - - napi_gro_receive(&sds_ring->napi, skb); - - adapter->stats.rx_pkts++; - adapter->stats.rxbytes += length; - - return buffer; -} - -#define TCP_HDR_SIZE 20 -#define TCP_TS_OPTION_SIZE 12 -#define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE) - -static struct netxen_rx_buffer * -netxen_process_lro(struct netxen_adapter *adapter, - struct nx_host_sds_ring *sds_ring, - int ring, u64 sts_data0, u64 sts_data1) -{ - struct net_device *netdev = adapter->netdev; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - struct netxen_rx_buffer *buffer; - struct sk_buff *skb; - struct nx_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; - u8 vhdr_len; - - if (unlikely(ring > adapter->max_rds_rings)) - return NULL; - - rds_ring = &recv_ctx->rds_rings[ring]; - - index = netxen_get_lro_sts_refhandle(sts_data0); - if (unlikely(index > rds_ring->num_desc)) - return NULL; - - buffer = &rds_ring->rx_buf_arr[index]; - - timestamp = netxen_get_lro_sts_timestamp(sts_data0); - lro_length = netxen_get_lro_sts_length(sts_data0); - l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0); - l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0); - push = netxen_get_lro_sts_push_flag(sts_data0); - seq_number = netxen_get_lro_sts_seq_number(sts_data1); - - skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); - if (!skb) - return buffer; - - if (timestamp) - data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE; - else - data_offset = l4_hdr_offset + TCP_HDR_SIZE; - - skb_put(skb, lro_length + data_offset); - - skb_pull(skb, l2_hdr_offset); - skb->protocol = eth_type_trans(skb, netdev); - - if (skb->protocol == htons(ETH_P_8021Q)) - vhdr_len = VLAN_HLEN; - iph = (struct iphdr *)(skb->data + vhdr_len); - th = (struct tcphdr *)((skb->data + vhdr_len) + (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.rxbytes += length; - - return buffer; -} - -#define netxen_merge_rx_buffers(list, head) \ - do { list_splice_tail_init(list, head); } while (0); - -int -netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max) -{ - struct netxen_adapter *adapter = sds_ring->adapter; - - struct list_head *cur; - - struct status_desc *desc; - struct netxen_rx_buffer *rxbuf; - - u32 consumer = sds_ring->consumer; - - int count = 0; - u64 sts_data0, sts_data1; - int opcode, ring = 0, desc_cnt; - - 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 = netxen_get_sts_desc_cnt(sts_data0); - - opcode = netxen_get_sts_opcode(sts_data0); - - switch (opcode) { - case NETXEN_NIC_RXPKT_DESC: - case NETXEN_OLD_RXPKT_DESC: - case NETXEN_NIC_SYN_OFFLOAD: - ring = netxen_get_sts_type(sts_data0); - rxbuf = netxen_process_rcv(adapter, sds_ring, - ring, sts_data0); - break; - case NETXEN_NIC_LRO_DESC: - ring = netxen_get_lro_sts_type(sts_data0); - sts_data1 = le64_to_cpu(desc->status_desc_data[1]); - rxbuf = netxen_process_lro(adapter, sds_ring, - ring, sts_data0, sts_data1); - break; - case NETXEN_NIC_RESPONSE_DESC: - netxen_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]); - -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 nx_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 netxen_rx_buffer, list); - netxen_alloc_rx_skb(adapter, rds_ring, rxbuf); - } - spin_lock(&rds_ring->lock); - netxen_merge_rx_buffers(&sds_ring->free_list[ring], - &rds_ring->free_list); - spin_unlock(&rds_ring->lock); - } - - netxen_post_rx_buffers_nodb(adapter, rds_ring); - } - - if (count) { - sds_ring->consumer = consumer; - NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer); - } - - return count; -} - -/* Process Command status ring */ -int netxen_process_cmd_ring(struct netxen_adapter *adapter) -{ - u32 sw_consumer, hw_consumer; - int count = 0, i; - struct netxen_cmd_buffer *buffer; - struct pci_dev *pdev = adapter->pdev; - struct net_device *netdev = adapter->netdev; - struct netxen_skb_frag *frag; - int done = 0; - struct nx_host_tx_ring *tx_ring = adapter->tx_ring; - - if (!spin_trylock(&adapter->tx_clean_lock)) - return 1; - - sw_consumer = tx_ring->sw_consumer; - hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); - - while (sw_consumer != hw_consumer) { - buffer = &tx_ring->cmd_buf_arr[sw_consumer]; - if (buffer->skb) { - frag = &buffer->frag_array[0]; - pci_unmap_single(pdev, frag->dma, frag->length, - PCI_DMA_TODEVICE); - frag->dma = 0ULL; - for (i = 1; i < buffer->frag_count; i++) { - frag++; /* Get the next frag */ - pci_unmap_page(pdev, frag->dma, frag->length, - PCI_DMA_TODEVICE); - frag->dma = 0ULL; - } - - adapter->stats.xmitfinished++; - dev_kfree_skb_any(buffer->skb); - buffer->skb = NULL; - } - - sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); - if (++count >= MAX_STATUS_HANDLE) - break; - } - - if (count && netif_running(netdev)) { - tx_ring->sw_consumer = sw_consumer; - - smp_mb(); - - if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) - if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) - netif_wake_queue(netdev); - adapter->tx_timeo_cnt = 0; - } - /* - * If everything is freed up to consumer then check if the ring is full - * If the ring is full then check if more needs to be freed and - * schedule the call back again. - * - * This happens when there are 2 CPUs. One could be freeing and the - * other filling it. If the ring is full when we get out of here and - * the card has already interrupted the host then the host can miss the - * interrupt. - * - * There is still a possible race condition and the host could miss an - * interrupt. The card has to take care of this. - */ - hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); - done = (sw_consumer == hw_consumer); - spin_unlock(&adapter->tx_clean_lock); - - return done; -} - -void -netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, - struct nx_host_rds_ring *rds_ring) -{ - struct rcv_desc *pdesc; - struct netxen_rx_buffer *buffer; - int producer, count = 0; - netxen_ctx_msg msg = 0; - struct list_head *head; - - producer = rds_ring->producer; - - head = &rds_ring->free_list; - while (!list_empty(head)) { - - buffer = list_entry(head->next, struct netxen_rx_buffer, list); - - if (!buffer->skb) { - if (netxen_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; - NXWRIO(adapter, rds_ring->crb_rcv_producer, - (producer-1) & (rds_ring->num_desc-1)); - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - /* - * Write a doorbell msg to tell phanmon of change in - * receive ring producer - * Only for firmware version < 4.0.0 - */ - netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); - netxen_set_msg_privid(msg); - netxen_set_msg_count(msg, - ((producer - 1) & - (rds_ring->num_desc - 1))); - netxen_set_msg_ctxid(msg, adapter->portnum); - netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); - NXWRIO(adapter, DB_NORMALIZE(adapter, - NETXEN_RCV_PRODUCER_OFFSET), msg); - } - } -} - -static void -netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, - struct nx_host_rds_ring *rds_ring) -{ - struct rcv_desc *pdesc; - struct netxen_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 netxen_rx_buffer, list); - - if (!buffer->skb) { - if (netxen_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; - NXWRIO(adapter, rds_ring->crb_rcv_producer, - (producer - 1) & (rds_ring->num_desc - 1)); - } - spin_unlock(&rds_ring->lock); -} - -void netxen_nic_clear_stats(struct netxen_adapter *adapter) -{ - memset(&adapter->stats, 0, sizeof(adapter->stats)); -} - |