diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_init.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 1577 |
1 files changed, 0 insertions, 1577 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c deleted file mode 100644 index 5bba675d050..00000000000 --- a/drivers/net/netxen/netxen_nic_init.c +++ /dev/null @@ -1,1577 +0,0 @@ -/* - * Copyright (C) 2003 - 2006 NetXen, Inc. - * 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 LICENSE. - * - * Contact Information: - * info@netxen.com - * NetXen, - * 3965 Freedom Circle, Fourth floor, - * Santa Clara, CA 95054 - * - * - * Source file for NIC routines to initialize the Phantom Hardware - * - */ - -#include <linux/netdevice.h> -#include <linux/delay.h> -#include "netxen_nic.h" -#include "netxen_nic_hw.h" -#include "netxen_nic_phan_reg.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, - uint32_t ctx, uint32_t ringid); - -#if 0 -static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter, - unsigned long off, int *data) -{ - void __iomem *addr = pci_base_offset(adapter, off); - writel(*data, addr); -} -#endif /* 0 */ - -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); -} - -int netxen_init_firmware(struct netxen_adapter *adapter) -{ - u32 state = 0, loops = 0, err = 0; - - /* Window 1 call */ - state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); - - if (state == PHAN_INITIALIZE_ACK) - return 0; - - while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) { - msleep(1); - /* Window 1 call */ - state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); - - loops++; - } - if (loops >= 2000) { - printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n", - state); - err = -EIO; - return err; - } - /* Window 1 call */ - adapter->pci_write_normalize(adapter, - CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); - adapter->pci_write_normalize(adapter, - CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); - adapter->pci_write_normalize(adapter, - CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); - adapter->pci_write_normalize(adapter, - CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); - - return err; -} - -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, ctxid, ring; - - for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { - recv_ctx = &adapter->recv_ctx[ctxid]; - for (ring = 0; ring < adapter->max_rds_rings; ring++) { - rds_ring = &recv_ctx->rds_rings[ring]; - for (i = 0; i < rds_ring->max_rx_desc_count; ++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; - - cmd_buf = adapter->cmd_buf_arr; - for (i = 0; i < adapter->max_tx_desc_count; 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; - } - } - /* Free the skb we received in netxen_nic_xmit_frame */ - 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; - int ctx, ring; - - for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) { - recv_ctx = &adapter->recv_ctx[ctx]; - for (ring = 0; ring < adapter->max_rds_rings; ring++) { - rds_ring = &recv_ctx->rds_rings[ring]; - if (rds_ring->rx_buf_arr) { - vfree(rds_ring->rx_buf_arr); - rds_ring->rx_buf_arr = NULL; - } - } - } - if (adapter->cmd_buf_arr) - vfree(adapter->cmd_buf_arr); - return; -} - -int netxen_alloc_sw_resources(struct netxen_adapter *adapter) -{ - struct netxen_recv_context *recv_ctx; - struct nx_host_rds_ring *rds_ring; - struct netxen_rx_buffer *rx_buf; - int ctx, ring, i, num_rx_bufs; - - struct netxen_cmd_buffer *cmd_buf_arr; - struct net_device *netdev = adapter->netdev; - - cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); - if (cmd_buf_arr == NULL) { - printk(KERN_ERR "%s: Failed to allocate cmd buffer ring\n", - netdev->name); - return -ENOMEM; - } - memset(cmd_buf_arr, 0, TX_RINGSIZE); - adapter->cmd_buf_arr = cmd_buf_arr; - - for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) { - recv_ctx = &adapter->recv_ctx[ctx]; - for (ring = 0; ring < adapter->max_rds_rings; ring++) { - rds_ring = &recv_ctx->rds_rings[ring]; - switch (RCV_DESC_TYPE(ring)) { - case RCV_DESC_NORMAL: - rds_ring->max_rx_desc_count = - adapter->max_rx_desc_count; - rds_ring->flags = RCV_DESC_NORMAL; - 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 { - rds_ring->dma_size = RX_DMA_MAP_LEN; - rds_ring->skb_size = - MAX_RX_BUFFER_LENGTH; - } - break; - - case RCV_DESC_JUMBO: - rds_ring->max_rx_desc_count = - adapter->max_jumbo_rx_desc_count; - rds_ring->flags = RCV_DESC_JUMBO; - 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; - rds_ring->skb_size = - rds_ring->dma_size + NET_IP_ALIGN; - break; - - case RCV_RING_LRO: - rds_ring->max_rx_desc_count = - adapter->max_lro_rx_desc_count; - rds_ring->flags = RCV_DESC_LRO; - rds_ring->dma_size = RX_LRO_DMA_MAP_LEN; - rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH; - break; - - } - rds_ring->rx_buf_arr = (struct netxen_rx_buffer *) - vmalloc(RCV_BUFFSIZE); - 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; - } - memset(rds_ring->rx_buf_arr, 0, RCV_BUFFSIZE); - INIT_LIST_HEAD(&rds_ring->free_list); - rds_ring->begin_alloc = 0; - /* - * Now go through all of them, set reference handles - * and put them in the queues. - */ - num_rx_bufs = rds_ring->max_rx_desc_count; - rx_buf = rds_ring->rx_buf_arr; - for (i = 0; i < num_rx_bufs; i++) { - list_add_tail(&rx_buf->list, - &rds_ring->free_list); - rx_buf->ref_handle = i; - rx_buf->state = NETXEN_BUFFER_FREE; - rx_buf++; - } - } - } - - return 0; - -err_out: - netxen_free_sw_resources(adapter); - return -ENOMEM; -} - -void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) -{ - switch (adapter->ahw.board_type) { - case NETXEN_NIC_GBE: - adapter->enable_phy_interrupts = - netxen_niu_gbe_enable_phy_interrupts; - adapter->disable_phy_interrupts = - netxen_niu_gbe_disable_phy_interrupts; - adapter->macaddr_set = netxen_niu_macaddr_set; - adapter->set_mtu = netxen_nic_set_mtu_gb; - adapter->set_promisc = netxen_niu_set_promiscuous_mode; - adapter->phy_read = netxen_niu_gbe_phy_read; - adapter->phy_write = netxen_niu_gbe_phy_write; - adapter->init_port = netxen_niu_gbe_init_port; - adapter->stop_port = netxen_niu_disable_gbe_port; - break; - - case NETXEN_NIC_XGBE: - adapter->enable_phy_interrupts = - netxen_niu_xgbe_enable_phy_interrupts; - adapter->disable_phy_interrupts = - netxen_niu_xgbe_disable_phy_interrupts; - adapter->macaddr_set = netxen_niu_xg_macaddr_set; - adapter->set_mtu = netxen_nic_set_mtu_xgb; - adapter->init_port = netxen_niu_xg_init_port; - adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; - adapter->stop_port = netxen_niu_disable_xg_port; - break; - - default: - break; - } - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - adapter->set_mtu = nx_fw_cmd_set_mtu; - adapter->set_promisc = netxen_p3_nic_set_promisc; - } -} - -/* - * 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); -} - -static long rom_max_timeout = 100; -static long rom_lock_timeout = 10000; -#if 0 -static long rom_write_timeout = 700; -#endif - -static int rom_lock(struct netxen_adapter *adapter) -{ - int iter; - u32 done = 0; - int timeout = 0; - - while (!done) { - /* acquire semaphore2 from PCI HW block */ - netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), - &done); - if (done == 1) - break; - if (timeout >= rom_lock_timeout) - return -EIO; - - timeout++; - /* - * Yield CPU - */ - if (!in_atomic()) - schedule(); - else { - for (iter = 0; iter < 20; iter++) - cpu_relax(); /*This a nop instr on i386 */ - } - } - netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); - return 0; -} - -static int netxen_wait_rom_done(struct netxen_adapter *adapter) -{ - long timeout = 0; - long done = 0; - - while (done == 0) { - done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); - done &= 2; - timeout++; - if (timeout >= rom_max_timeout) { - printk("Timeout reached waiting for rom done"); - return -EIO; - } - } - return 0; -} - -#if 0 -static int netxen_rom_wren(struct netxen_adapter *adapter) -{ - /* Set write enable latch in ROM status register */ - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, - M25P_INSTR_WREN); - if (netxen_wait_rom_done(adapter)) { - return -1; - } - return 0; -} - -static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter, - unsigned int addr) -{ - unsigned int data = 0xdeaddead; - data = netxen_nic_reg_read(adapter, addr); - return data; -} - -static int netxen_do_rom_rdsr(struct netxen_adapter *adapter) -{ - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, - M25P_INSTR_RDSR); - if (netxen_wait_rom_done(adapter)) { - return -1; - } - return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA); -} -#endif - -static void netxen_rom_unlock(struct netxen_adapter *adapter) -{ - u32 val; - - /* release semaphore2 */ - netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); - -} - -#if 0 -static int netxen_rom_wip_poll(struct netxen_adapter *adapter) -{ - long timeout = 0; - long wip = 1; - int val; - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - while (wip != 0) { - val = netxen_do_rom_rdsr(adapter); - wip = val & 1; - timeout++; - if (timeout > rom_max_timeout) { - return -1; - } - } - return 0; -} - -static int do_rom_fast_write(struct netxen_adapter *adapter, int addr, - int data) -{ - if (netxen_rom_wren(adapter)) { - return -1; - } - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, - M25P_INSTR_PP); - if (netxen_wait_rom_done(adapter)) { - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - return -1; - } - - return netxen_rom_wip_poll(adapter); -} -#endif - -static int do_rom_fast_read(struct netxen_adapter *adapter, - int addr, int *valp) -{ - cond_resched(); - - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - udelay(100); /* prevent bursting on CRB */ - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); - netxen_nic_reg_write(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 */ - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - udelay(100); /* prevent bursting on CRB */ - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); - - *valp = netxen_nic_reg_read(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 = 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 (rom_lock(adapter) != 0) - return -EIO; - - ret = do_rom_fast_read(adapter, addr, valp); - netxen_rom_unlock(adapter); - return ret; -} - -#if 0 -int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data) -{ - int ret = 0; - - if (rom_lock(adapter) != 0) { - return -1; - } - ret = do_rom_fast_write(adapter, addr, data); - netxen_rom_unlock(adapter); - return ret; -} - -static int do_rom_fast_write_words(struct netxen_adapter *adapter, - int addr, u8 *bytes, size_t size) -{ - int addridx = addr; - int ret = 0; - - while (addridx < (addr + size)) { - int last_attempt = 0; - int timeout = 0; - int data; - - data = le32_to_cpu((*(__le32*)bytes)); - ret = do_rom_fast_write(adapter, addridx, data); - if (ret < 0) - return ret; - - while(1) { - int data1; - - ret = do_rom_fast_read(adapter, addridx, &data1); - if (ret < 0) - return ret; - - if (data1 == data) - break; - - if (timeout++ >= rom_write_timeout) { - if (last_attempt++ < 4) { - ret = do_rom_fast_write(adapter, - addridx, data); - if (ret < 0) - return ret; - } - else { - printk(KERN_INFO "Data write did not " - "succeed at address 0x%x\n", addridx); - break; - } - } - } - - bytes += 4; - addridx += 4; - } - - return ret; -} - -int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr, - u8 *bytes, size_t size) -{ - int ret = 0; - - ret = rom_lock(adapter); - if (ret < 0) - return ret; - - ret = do_rom_fast_write_words(adapter, addr, bytes, size); - netxen_rom_unlock(adapter); - - return ret; -} - -static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data) -{ - int ret; - - ret = netxen_rom_wren(adapter); - if (ret < 0) - return ret; - - netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data); - netxen_crb_writelit_adapter(adapter, - NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1); - - ret = netxen_wait_rom_done(adapter); - if (ret < 0) - return ret; - - return netxen_rom_wip_poll(adapter); -} - -static int netxen_rom_rdsr(struct netxen_adapter *adapter) -{ - int ret; - - ret = rom_lock(adapter); - if (ret < 0) - return ret; - - ret = netxen_do_rom_rdsr(adapter); - netxen_rom_unlock(adapter); - return ret; -} - -int netxen_backup_crbinit(struct netxen_adapter *adapter) -{ - int ret = FLASH_SUCCESS; - int val; - char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL); - - if (!buffer) - return -ENOMEM; - /* unlock sector 63 */ - val = netxen_rom_rdsr(adapter); - val = val & 0xe3; - ret = netxen_rom_wrsr(adapter, val); - if (ret != FLASH_SUCCESS) - goto out_kfree; - - ret = netxen_rom_wip_poll(adapter); - if (ret != FLASH_SUCCESS) - goto out_kfree; - - /* copy sector 0 to sector 63 */ - ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START, - buffer, NETXEN_FLASH_SECTOR_SIZE); - if (ret != FLASH_SUCCESS) - goto out_kfree; - - ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START, - buffer, NETXEN_FLASH_SECTOR_SIZE); - if (ret != FLASH_SUCCESS) - goto out_kfree; - - /* lock sector 63 */ - val = netxen_rom_rdsr(adapter); - if (!(val & 0x8)) { - val |= (0x1 << 2); - /* lock sector 63 */ - if (netxen_rom_wrsr(adapter, val) == 0) { - ret = netxen_rom_wip_poll(adapter); - if (ret != FLASH_SUCCESS) - goto out_kfree; - - /* lock SR writes */ - ret = netxen_rom_wip_poll(adapter); - if (ret != FLASH_SUCCESS) - goto out_kfree; - } - } - -out_kfree: - kfree(buffer); - return ret; -} - -static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr) -{ - netxen_rom_wren(adapter); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, - M25P_INSTR_SE); - if (netxen_wait_rom_done(adapter)) { - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - return -1; - } - return netxen_rom_wip_poll(adapter); -} - -static void check_erased_flash(struct netxen_adapter *adapter, int addr) -{ - int i; - int val; - int count = 0, erased_errors = 0; - int range; - - range = (addr == NETXEN_USER_START) ? - NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE; - - for (i = addr; i < range; i += 4) { - netxen_rom_fast_read(adapter, i, &val); - if (val != 0xffffffff) - erased_errors++; - count++; - } - - if (erased_errors) - printk(KERN_INFO "0x%x out of 0x%x words fail to be erased " - "for sector address: %x\n", erased_errors, count, addr); -} - -int netxen_rom_se(struct netxen_adapter *adapter, int addr) -{ - int ret = 0; - if (rom_lock(adapter) != 0) { - return -1; - } - ret = netxen_do_rom_se(adapter, addr); - netxen_rom_unlock(adapter); - msleep(30); - check_erased_flash(adapter, addr); - - return ret; -} - -static int netxen_flash_erase_sections(struct netxen_adapter *adapter, - int start, int end) -{ - int ret = FLASH_SUCCESS; - int i; - - for (i = start; i < end; i++) { - ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE); - if (ret) - break; - ret = netxen_rom_wip_poll(adapter); - if (ret < 0) - return ret; - } - - return ret; -} - -int -netxen_flash_erase_secondary(struct netxen_adapter *adapter) -{ - int ret = FLASH_SUCCESS; - int start, end; - - start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; - end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE; - ret = netxen_flash_erase_sections(adapter, start, end); - - return ret; -} - -int -netxen_flash_erase_primary(struct netxen_adapter *adapter) -{ - int ret = FLASH_SUCCESS; - int start, end; - - start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE; - end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; - ret = netxen_flash_erase_sections(adapter, start, end); - - return ret; -} - -void netxen_halt_pegs(struct netxen_adapter *adapter) -{ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1); -} - -int netxen_flash_unlock(struct netxen_adapter *adapter) -{ - int ret = 0; - - ret = netxen_rom_wrsr(adapter, 0); - if (ret < 0) - return ret; - - ret = netxen_rom_wren(adapter); - if (ret < 0) - return ret; - - return ret; -} -#endif /* 0 */ - -#define NETXEN_BOARDTYPE 0x4008 -#define NETXEN_BOARDNUM 0x400c -#define NETXEN_CHIPNUM 0x4010 - -int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) -{ - int addr, val; - int i, init_delay = 0; - struct crb_addr_pair *buf; - unsigned offset, n; - u32 off; - - /* resetall */ - netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, - 0xffffffff); - - if (verbose) { - if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) - printk("P2 ROM board type: 0x%08x\n", val); - else - printk("Could not read board type\n"); - if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) - printk("P2 ROM board num: 0x%08x\n", val); - else - printk("Could not read board number\n"); - if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) - printk("P2 ROM chip num: 0x%08x\n", val); - else - printk("Could not read chip number\n"); - } - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - if (netxen_rom_fast_read(adapter, 0, &n) != 0 || - (n != 0xcafecafeUL) || - 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) { - if (verbose) - printk(KERN_DEBUG "%s: %d CRB init values found" - " in ROM.\n", netxen_nic_driver_name, n); - } else { - 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) - return -EIO; - - buf[i].addr = addr; - buf[i].data = val; - - if (verbose) - printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n", - netxen_nic_driver_name, - (u32)netxen_decode_crb_addr(addr), 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; - /* skipping cold reboot MAGIC */ - if (off == NETXEN_CAM_RAM(0x1fc)) - continue; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - /* do not reset PCI */ - if (off == (ROMUSB_GLB + 0xbc)) - continue; - if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) - 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; - } - - if (off == NETXEN_ADDR_ERROR) { - printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n", - netxen_nic_driver_name, buf[i].addr); - continue; - } - - /* 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 = 1; - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - /* hold xdma in reset also */ - buf[i].data = NETXEN_NIC_XDMA_RESET; - } - } - - adapter->hw_write_wx(adapter, off, &buf[i].data, 4); - - if (init_delay == 1) { - msleep(1000); - init_delay = 0; - } - msleep(1); - } - kfree(buf); - - /* disable_peg_cache_all */ - - /* unreset_net_cache */ - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - adapter->hw_read_wx(adapter, - NETXEN_ROMUSB_GLB_SW_RESET, &val, 4); - netxen_crb_writelit_adapter(adapter, - NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); - } - - /* p2dn replyCount */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); - /* disable_peg_cache 0 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); - /* disable_peg_cache 1 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); - - /* peg_clr_all */ - - /* peg_clr 0 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); - /* peg_clr 1 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); - /* peg_clr 2 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); - /* peg_clr 3 */ - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); - netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0); - return 0; -} - -int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) -{ - uint64_t addr; - uint32_t hi; - uint32_t lo; - - 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) { - printk("%s: ERROR: Could not allocate dummy DMA memory\n", - __func__); - return -ENOMEM; - } - - addr = (uint64_t) adapter->dummy_dma.phys_addr; - hi = (addr >> 32) & 0xffffffff; - lo = addr & 0xffffffff; - - adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); - adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - uint32_t temp = 0; - adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4); - } - - return 0; -} - -void netxen_free_adapter_offload(struct netxen_adapter *adapter) -{ - int i = 100; - - if (!adapter->dummy_dma.addr) - return; - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - do { - if (dma_watchdog_shutdown_request(adapter) == 1) - break; - msleep(50); - if (dma_watchdog_shutdown_poll_result(adapter) == 1) - break; - } while (--i); - } - - 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 { - printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", - adapter->netdev->name); - } -} - -int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) -{ - u32 val = 0; - int retries = 60; - - if (!pegtune_val) { - do { - val = adapter->pci_read_normalize(adapter, - CRB_CMDPEG_STATE); - - if (val == PHAN_INITIALIZE_COMPLETE || - val == PHAN_INITIALIZE_ACK) - return 0; - - msleep(500); - - } while (--retries); - - if (!retries) { - pegtune_val = adapter->pci_read_normalize(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE); - printk(KERN_WARNING "netxen_phantom_init: init failed, " - "pegtune_val=%x\n", pegtune_val); - return -1; - } - } - - return 0; -} - -int netxen_receive_peg_ready(struct netxen_adapter *adapter) -{ - u32 val = 0; - int retries = 2000; - - do { - val = adapter->pci_read_normalize(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; -} - -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->rx_csum && cksum == STATUS_CKSUM_OK)) { - adapter->stats.csummed++; - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else - skb->ip_summed = CHECKSUM_NONE; - - skb->dev = adapter->netdev; - - buffer->skb = NULL; - -no_skb: - buffer->state = NETXEN_BUFFER_FREE; - buffer->lro_current_frags = 0; - buffer->lro_expected_frags = 0; - list_add_tail(&buffer->list, &rds_ring->free_list); - return skb; -} - -/* - * netxen_process_rcv() send the received packet to the protocol stack. - * and if the number of receives exceeds RX_BUFFERS_REFILL, then we - * invoke the routine to send more rx buffers to the Phantom... - */ -static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, - struct status_desc *desc, struct status_desc *frag_desc) -{ - struct net_device *netdev = adapter->netdev; - u64 sts_data = le64_to_cpu(desc->status_desc_data); - int index = netxen_get_sts_refhandle(sts_data); - struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); - struct netxen_rx_buffer *buffer; - struct sk_buff *skb; - u32 length = netxen_get_sts_totallength(sts_data); - u32 desc_ctx; - u16 pkt_offset = 0, cksum; - struct nx_host_rds_ring *rds_ring; - - desc_ctx = netxen_get_sts_type(sts_data); - if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) { - printk("%s: %s Bad Rcv descriptor ring\n", - netxen_nic_driver_name, netdev->name); - return; - } - - rds_ring = &recv_ctx->rds_rings[desc_ctx]; - if (unlikely(index > rds_ring->max_rx_desc_count)) { - DPRINTK(ERR, "Got a buffer index:%x Max is %x\n", - index, rds_ring->max_rx_desc_count); - return; - } - buffer = &rds_ring->rx_buf_arr[index]; - if (desc_ctx == RCV_DESC_LRO_CTXID) { - buffer->lro_current_frags++; - if (netxen_get_sts_desc_lro_last_frag(desc)) { - buffer->lro_expected_frags = - netxen_get_sts_desc_lro_cnt(desc); - buffer->lro_length = length; - } - if (buffer->lro_current_frags != buffer->lro_expected_frags) { - if (buffer->lro_expected_frags != 0) { - printk("LRO: (refhandle:%x) recv frag. " - "wait for last. flags: %x expected:%d " - "have:%d\n", index, - netxen_get_sts_desc_lro_last_frag(desc), - buffer->lro_expected_frags, - buffer->lro_current_frags); - } - return; - } - } - - cksum = netxen_get_sts_status(sts_data); - - skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); - if (!skb) - return; - - if (desc_ctx == RCV_DESC_LRO_CTXID) { - /* True length was only available on the last pkt */ - skb_put(skb, buffer->lro_length); - } else { - if (length > rds_ring->skb_size) - skb_put(skb, rds_ring->skb_size); - else - skb_put(skb, length); - - pkt_offset = netxen_get_sts_pkt_offset(sts_data); - if (pkt_offset) - skb_pull(skb, pkt_offset); - } - - skb->protocol = eth_type_trans(skb, netdev); - - /* - * rx buffer chaining is disabled, walk and free - * any spurious rx buffer chain. - */ - if (frag_desc) { - u16 i, nr_frags = desc->nr_frags; - - dev_kfree_skb_any(skb); - for (i = 0; i < nr_frags; i++) { - index = frag_desc->frag_handles[i]; - skb = netxen_process_rxbuf(adapter, - rds_ring, index, cksum); - if (skb) - dev_kfree_skb_any(skb); - } - adapter->stats.rxdropped++; - } else { - - netif_receive_skb(skb); - netdev->last_rx = jiffies; - - adapter->stats.no_rcv++; - adapter->stats.rxbytes += length; - } -} - -/* Process Receive status ring */ -u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max) -{ - struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); - struct status_desc *desc_head = recv_ctx->rcv_status_desc_head; - struct status_desc *desc, *frag_desc; - u32 consumer = recv_ctx->status_rx_consumer; - int count = 0, ring; - u64 sts_data; - u16 opcode; - - while (count < max) { - desc = &desc_head[consumer]; - if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) { - DPRINTK(ERR, "desc %p ownedby %x\n", desc, - netxen_get_sts_owner(desc)); - break; - } - - sts_data = le64_to_cpu(desc->status_desc_data); - opcode = netxen_get_sts_opcode(sts_data); - frag_desc = NULL; - if (opcode == NETXEN_NIC_RXPKT_DESC) { - if (desc->nr_frags) { - consumer = get_next_index(consumer, - adapter->max_rx_desc_count); - frag_desc = &desc_head[consumer]; - netxen_set_sts_owner(frag_desc, - STATUS_OWNER_PHANTOM); - } - } - - netxen_process_rcv(adapter, ctxid, desc, frag_desc); - - netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM); - - consumer = get_next_index(consumer, - adapter->max_rx_desc_count); - count++; - } - for (ring = 0; ring < adapter->max_rds_rings; ring++) - netxen_post_rx_buffers_nodb(adapter, ctxid, ring); - - /* update the consumer index in phantom */ - if (count) { - recv_ctx->status_rx_consumer = consumer; - - /* Window = 1 */ - adapter->pci_write_normalize(adapter, - recv_ctx->crb_sts_consumer, consumer); - } - - return count; -} - -/* Process Command status ring */ -int netxen_process_cmd_ring(struct netxen_adapter *adapter) -{ - u32 last_consumer, 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; - - last_consumer = adapter->last_cmd_consumer; - consumer = le32_to_cpu(*(adapter->cmd_consumer)); - - while (last_consumer != consumer) { - buffer = &adapter->cmd_buf_arr[last_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; - } - - last_consumer = get_next_index(last_consumer, - adapter->max_tx_desc_count); - if (++count >= MAX_STATUS_HANDLE) - break; - } - - if (count) { - adapter->last_cmd_consumer = last_consumer; - smp_mb(); - if (netif_queue_stopped(netdev) && netif_running(netdev)) { - netif_tx_lock(netdev); - netif_wake_queue(netdev); - smp_mb(); - netif_tx_unlock(netdev); - } - } - /* - * 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. - */ - consumer = le32_to_cpu(*(adapter->cmd_consumer)); - done = (last_consumer == consumer); - - return (done); -} - -/* - * netxen_post_rx_buffers puts buffer in the Phantom memory - */ -void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) -{ - struct pci_dev *pdev = adapter->pdev; - struct sk_buff *skb; - struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); - struct nx_host_rds_ring *rds_ring = NULL; - uint producer; - struct rcv_desc *pdesc; - struct netxen_rx_buffer *buffer; - int count = 0; - int index = 0; - netxen_ctx_msg msg = 0; - dma_addr_t dma; - struct list_head *head; - - rds_ring = &recv_ctx->rds_rings[ringid]; - - producer = rds_ring->producer; - index = rds_ring->begin_alloc; - head = &rds_ring->free_list; - - /* We can start writing rx descriptors into the phantom memory. */ - while (!list_empty(head)) { - - skb = dev_alloc_skb(rds_ring->skb_size); - if (unlikely(!skb)) { - rds_ring->begin_alloc = index; - break; - } - - buffer = list_entry(head->next, struct netxen_rx_buffer, list); - list_del(&buffer->list); - - count++; /* now there should be no failure */ - pdesc = &rds_ring->desc_head[producer]; - - if (!adapter->ahw.cut_through) - skb_reserve(skb, 2); - /* This will be setup when we receive the - * buffer after it has been filled FSL TBD TBD - * skb->dev = netdev; - */ - dma = pci_map_single(pdev, skb->data, rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - pdesc->addr_buffer = cpu_to_le64(dma); - buffer->skb = skb; - buffer->state = NETXEN_BUFFER_BUSY; - buffer->dma = dma; - /* make a rcv descriptor */ - pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); - pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); - DPRINTK(INFO, "done writing descripter\n"); - producer = - get_next_index(producer, rds_ring->max_rx_desc_count); - index = get_next_index(index, rds_ring->max_rx_desc_count); - } - /* if we did allocate buffers, then write the count to Phantom */ - if (count) { - rds_ring->begin_alloc = index; - rds_ring->producer = producer; - /* Window = 1 */ - adapter->pci_write_normalize(adapter, - rds_ring->crb_rcv_producer, - (producer-1) & (rds_ring->max_rx_desc_count-1)); - - if (adapter->fw_major < 4) { - /* - * 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-> - max_rx_desc_count - 1))); - netxen_set_msg_ctxid(msg, adapter->portnum); - netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); - writel(msg, - DB_NORMALIZE(adapter, - NETXEN_RCV_PRODUCER_OFFSET)); - } - } -} - -static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, - uint32_t ctx, uint32_t ringid) -{ - struct pci_dev *pdev = adapter->pdev; - struct sk_buff *skb; - struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); - struct nx_host_rds_ring *rds_ring = NULL; - u32 producer; - struct rcv_desc *pdesc; - struct netxen_rx_buffer *buffer; - int count = 0; - int index = 0; - struct list_head *head; - - rds_ring = &recv_ctx->rds_rings[ringid]; - - producer = rds_ring->producer; - index = rds_ring->begin_alloc; - head = &rds_ring->free_list; - /* We can start writing rx descriptors into the phantom memory. */ - while (!list_empty(head)) { - - skb = dev_alloc_skb(rds_ring->skb_size); - if (unlikely(!skb)) { - rds_ring->begin_alloc = index; - break; - } - - buffer = list_entry(head->next, struct netxen_rx_buffer, list); - list_del(&buffer->list); - - count++; /* now there should be no failure */ - pdesc = &rds_ring->desc_head[producer]; - if (!adapter->ahw.cut_through) - skb_reserve(skb, 2); - buffer->skb = skb; - buffer->state = NETXEN_BUFFER_BUSY; - buffer->dma = pci_map_single(pdev, skb->data, - rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - - /* make a rcv descriptor */ - 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->max_rx_desc_count); - index = get_next_index(index, rds_ring->max_rx_desc_count); - buffer = &rds_ring->rx_buf_arr[index]; - } - - /* if we did allocate buffers, then write the count to Phantom */ - if (count) { - rds_ring->begin_alloc = index; - rds_ring->producer = producer; - /* Window = 1 */ - adapter->pci_write_normalize(adapter, - rds_ring->crb_rcv_producer, - (producer-1) & (rds_ring->max_rx_desc_count-1)); - wmb(); - } -} - -void netxen_nic_clear_stats(struct netxen_adapter *adapter) -{ - memset(&adapter->stats, 0, sizeof(adapter->stats)); - return; -} - |