diff options
Diffstat (limited to 'drivers/net/netxen')
| -rw-r--r-- | drivers/net/netxen/netxen_nic.h | 38 | ||||
| -rw-r--r-- | drivers/net/netxen/netxen_nic_ctx.c | 710 | ||||
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 191 | ||||
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 15 |
4 files changed, 876 insertions, 78 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index e41f62352b15..705fdf10f95d 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -140,6 +140,7 @@ #define NX_RX_NORMAL_BUF_MAX_LEN (NX_MAX_ETHERHDR + NX_ETHERMTU) #define NX_P2_RX_JUMBO_BUF_MAX_LEN (NX_MAX_ETHERHDR + P2_MAX_MTU) #define NX_P3_RX_JUMBO_BUF_MAX_LEN (NX_MAX_ETHERHDR + P3_MAX_MTU) +#define NX_CT_DEFAULT_RX_BUF_LEN 2048 #define MAX_RX_BUFFER_LENGTH 1760 #define MAX_RX_JUMBO_BUFFER_LENGTH 8062 @@ -391,8 +392,8 @@ struct rcv_desc { }; /* opcode field in status_desc */ -#define RCV_NIC_PKT (0xA) -#define STATUS_NIC_PKT ((RCV_NIC_PKT) << 12) +#define NETXEN_NIC_RXPKT_DESC 0x04 +#define NETXEN_OLD_RXPKT_DESC 0x3f /* for status field in status_desc */ #define STATUS_NEED_CKSUM (1) @@ -424,6 +425,8 @@ struct rcv_desc { (((sts_data) >> 28) & 0xFFFF) #define netxen_get_sts_prot(sts_data) \ (((sts_data) >> 44) & 0x0F) +#define netxen_get_sts_pkt_offset(sts_data) \ + (((sts_data) >> 48) & 0x1F) #define netxen_get_sts_opcode(sts_data) \ (((sts_data) >> 58) & 0x03F) @@ -438,17 +441,30 @@ struct rcv_desc { struct status_desc { /* Bit pattern: 0-3 port, 4-7 status, 8-11 type, 12-27 total_length - 28-43 reference_handle, 44-47 protocol, 48-52 unused + 28-43 reference_handle, 44-47 protocol, 48-52 pkt_offset 53-55 desc_cnt, 56-57 owner, 58-63 opcode */ __le64 status_desc_data; - __le32 hash_value; - u8 hash_type; - u8 msg_type; - u8 unused; - /* Bit pattern: 0-6 lro_count indicates frag sequence, - 7 last_frag indicates last frag */ - u8 lro; + union { + struct { + __le32 hash_value; + u8 hash_type; + u8 msg_type; + u8 unused; + union { + /* Bit pattern: 0-6 lro_count indicates frag + * sequence, 7 last_frag indicates last frag + */ + u8 lro; + + /* chained buffers */ + u8 nr_frags; + }; + }; + struct { + __le16 frag_handles[4]; + }; + }; } __attribute__ ((aligned(16))); enum { @@ -774,6 +790,7 @@ struct netxen_cmd_buffer { /* In rx_buffer, we do not need multiple fragments as is a single buffer */ struct netxen_rx_buffer { + struct list_head list; struct sk_buff *skb; u64 dma; u16 ref_handle; @@ -854,6 +871,7 @@ struct nx_host_rds_ring { u32 dma_size; u32 skb_size; struct netxen_rx_buffer *rx_buf_arr; /* rx buffers for receive */ + struct list_head free_list; int begin_alloc; }; diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c new file mode 100644 index 000000000000..64babc59e699 --- /dev/null +++ b/drivers/net/netxen/netxen_nic_ctx.c @@ -0,0 +1,710 @@ +/* + * Copyright (C) 2003 - 2008 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 + * + */ + +#include "netxen_nic_hw.h" +#include "netxen_nic.h" +#include "netxen_nic_phan_reg.h" + +#define NXHAL_VERSION 1 + +static int +netxen_api_lock(struct netxen_adapter *adapter) +{ + u32 done = 0, timeout = 0; + + for (;;) { + /* Acquire PCIE HW semaphore5 */ + netxen_nic_read_w0(adapter, + NETXEN_PCIE_REG(PCIE_SEM5_LOCK), &done); + + if (done == 1) + break; + + if (++timeout >= NX_OS_CRB_RETRY_COUNT) { + printk(KERN_ERR "%s: lock timeout.\n", __func__); + return -1; + } + + msleep(1); + } + +#if 0 + netxen_nic_write_w1(adapter, + NETXEN_API_LOCK_ID, NX_OS_API_LOCK_DRIVER); +#endif + return 0; +} + +static int +netxen_api_unlock(struct netxen_adapter *adapter) +{ + u32 val; + + /* Release PCIE HW semaphore5 */ + netxen_nic_read_w0(adapter, + NETXEN_PCIE_REG(PCIE_SEM5_UNLOCK), &val); + return 0; +} + +static u32 +netxen_poll_rsp(struct netxen_adapter *adapter) +{ + u32 raw_rsp, rsp = NX_CDRP_RSP_OK; + int timeout = 0; + + do { + /* give atleast 1ms for firmware to respond */ + msleep(1); + + if (++timeout > NX_OS_CRB_RETRY_COUNT) + return NX_CDRP_RSP_TIMEOUT; + + netxen_nic_read_w1(adapter, NX_CDRP_CRB_OFFSET, + &raw_rsp); + + rsp = le32_to_cpu(raw_rsp); + } while (!NX_CDRP_IS_RSP(rsp)); + + return rsp; +} + +static u32 +netxen_issue_cmd(struct netxen_adapter *adapter, + u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd) +{ + u32 rsp; + u32 signature = 0; + u32 rcode = NX_RCODE_SUCCESS; + + signature = NX_CDRP_SIGNATURE_MAKE(pci_fn, version); + + /* Acquire semaphore before accessing CRB */ + if (netxen_api_lock(adapter)) + return NX_RCODE_TIMEOUT; + + netxen_nic_write_w1(adapter, NX_SIGN_CRB_OFFSET, + cpu_to_le32(signature)); + + netxen_nic_write_w1(adapter, NX_ARG1_CRB_OFFSET, + cpu_to_le32(arg1)); + + netxen_nic_write_w1(adapter, NX_ARG2_CRB_OFFSET, + cpu_to_le32(arg2)); + + netxen_nic_write_w1(adapter, NX_ARG3_CRB_OFFSET, + cpu_to_le32(arg3)); + + netxen_nic_write_w1(adapter, NX_CDRP_CRB_OFFSET, + cpu_to_le32(NX_CDRP_FORM_CMD(cmd))); + + rsp = netxen_poll_rsp(adapter); + + if (rsp == NX_CDRP_RSP_TIMEOUT) { + printk(KERN_ERR "%s: card response timeout.\n", + netxen_nic_driver_name); + + rcode = NX_RCODE_TIMEOUT; + } else if (rsp == NX_CDRP_RSP_FAIL) { + netxen_nic_read_w1(adapter, NX_ARG1_CRB_OFFSET, &rcode); + rcode = le32_to_cpu(rcode); + + printk(KERN_ERR "%s: failed card response code:0x%x\n", + netxen_nic_driver_name, rcode); + } + + /* Release semaphore */ + netxen_api_unlock(adapter); + + return rcode; +} + +u32 +nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, u32 mtu) +{ + u32 rcode = NX_RCODE_SUCCESS; + struct netxen_recv_context *recv_ctx = &adapter->recv_ctx[0]; + + if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE) + rcode = netxen_issue_cmd(adapter, + adapter->ahw.pci_func, + NXHAL_VERSION, + recv_ctx->context_id, + mtu, + 0, + NX_CDRP_CMD_SET_MTU); + + return rcode; +} + +static int +nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter) +{ + void *addr; + nx_hostrq_rx_ctx_t *prq; + nx_cardrsp_rx_ctx_t *prsp; + nx_hostrq_rds_ring_t *prq_rds; + nx_hostrq_sds_ring_t *prq_sds; + nx_cardrsp_rds_ring_t *prsp_rds; + nx_cardrsp_sds_ring_t *prsp_sds; + struct nx_host_rds_ring *rds_ring; + + dma_addr_t hostrq_phys_addr, cardrsp_phys_addr; + u64 phys_addr; + + int i, nrds_rings, nsds_rings; + size_t rq_size, rsp_size; + u32 cap, reg; + + int err; + + struct netxen_recv_context *recv_ctx = &adapter->recv_ctx[0]; + + /* only one sds ring for now */ + nrds_rings = adapter->max_rds_rings; + nsds_rings = 1; + + rq_size = + SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t, nrds_rings, nsds_rings); + rsp_size = + SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t, nrds_rings, nsds_rings); + + addr = pci_alloc_consistent(adapter->pdev, + rq_size, &hostrq_phys_addr); + if (addr == NULL) + return -ENOMEM; + prq = (nx_hostrq_rx_ctx_t *)addr; + + addr = pci_alloc_consistent(adapter->pdev, + rsp_size, &cardrsp_phys_addr); + if (addr == NULL) { + err = -ENOMEM; + goto out_free_rq; + } + prsp = (nx_cardrsp_rx_ctx_t *)addr; + + prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr); + + cap = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN); + cap |= (NX_CAP0_JUMBO_CONTIGUOUS | NX_CAP0_LRO_CONTIGUOUS); + + prq->capabilities[0] = cpu_to_le32(cap); + prq->host_int_crb_mode = + cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED); + prq->host_rds_crb_mode = + cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE); + + prq->num_rds_rings = cpu_to_le16(nrds_rings); + prq->num_sds_rings = cpu_to_le16(nsds_rings); + prq->rds_ring_offset = 0; + prq->sds_ring_offset = prq->rds_ring_offset + + (sizeof(nx_hostrq_rds_ring_t) * nrds_rings); + + prq_rds = (nx_hostrq_rds_ring_t *)(prq->data + prq->rds_ring_offset); + + for (i = 0; i < nrds_rings; i++) { + + rds_ring = &recv_ctx->rds_rings[i]; + + prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr); + prq_rds[i].ring_size = cpu_to_le32(rds_ring->max_rx_desc_count); + prq_rds[i].ring_kind = cpu_to_le32(i); + prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size); + } + + prq_sds = (nx_hostrq_sds_ring_t *)(prq->data + prq->sds_ring_offset); + + prq_sds[0].host_phys_addr = + cpu_to_le64(recv_ctx->rcv_status_desc_phys_addr); + prq_sds[0].ring_size = cpu_to_le32(adapter->max_rx_desc_count); + /* only one msix vector for now */ + prq_sds[0].msi_index = cpu_to_le32(0); + + /* now byteswap offsets */ + prq->rds_ring_offset = cpu_to_le32(prq->rds_ring_offset); + prq->sds_ring_offset = cpu_to_le32(prq->sds_ring_offset); + + phys_addr = hostrq_phys_addr; + err = netxen_issue_cmd(adapter, + adapter->ahw.pci_func, + NXHAL_VERSION, + (u32)(phys_addr >> 32), + (u32)(phys_addr & 0xffffffff), + rq_size, + NX_CDRP_CMD_CREATE_RX_CTX); + if (err) { + printk(KERN_WARNING + "Failed to create rx ctx in firmware%d\n", err); + goto out_free_rsp; + } + + + prsp_rds = ((nx_cardrsp_rds_ring_t *) + &prsp->data[prsp->rds_ring_offset]); + + for (i = 0; i < le32_to_cpu(prsp->num_rds_rings); i++) { + rds_ring = &recv_ctx->rds_rings[i]; + + reg = le32_to_cpu(prsp_rds[i].host_producer_crb); + rds_ring->crb_rcv_producer = NETXEN_NIC_REG(reg - 0x200); + } + + prsp_sds = ((nx_cardrsp_sds_ring_t *) + &prsp->data[prsp->sds_ring_offset]); + reg = le32_to_cpu(prsp_sds[0].host_consumer_crb); + recv_ctx->crb_sts_consumer = NETXEN_NIC_REG(reg - 0x200); + + reg = le32_to_cpu(prsp_sds[0].interrupt_crb); + adapter->crb_intr_mask = NETXEN_NIC_REG(reg - 0x200); + + recv_ctx->state = le32_to_cpu(prsp->host_ctx_state); + recv_ctx->context_id = le16_to_cpu(prsp->context_id); + recv_ctx->virt_port = le16_to_cpu(prsp->virt_port); + +out_free_rsp: + pci_free_consistent(adapter->pdev, rsp_size, prsp, cardrsp_phys_addr); +out_free_rq: + pci_free_consistent(adapter->pdev, rq_size, prq, hostrq_phys_addr); + return err; +} + +static void +nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter) +{ + struct netxen_recv_context *recv_ctx = &adapter->recv_ctx[0]; + + if (netxen_issue_cmd(adapter, + adapter->ahw.pci_func, + NXHAL_VERSION, + recv_ctx->context_id, + NX_DESTROY_CTX_RESET, + 0, + NX_CDRP_CMD_DESTROY_RX_CTX)) { + + printk(KERN_WARNING + "%s: Failed to destroy rx ctx in firmware\n", + netxen_nic_driver_name); + } +} + +static int +nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter) +{ + nx_hostrq_tx_ctx_t *prq; + nx_hostrq_cds_ring_t *prq_cds; + nx_cardrsp_tx_ctx_t *prsp; + void *rq_addr, *rsp_addr; + size_t rq_size, rsp_size; + u32 temp; + int err = 0; + u64 offset, phys_addr; + dma_addr_t rq_phys_addr, rsp_phys_addr; + + rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t); + rq_addr = pci_alloc_consistent(adapter->pdev, + rq_size, &rq_phys_addr); + if (!rq_addr) + return -ENOMEM; + + rsp_size = SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t); + rsp_addr = pci_alloc_consistent(adapter->pdev, + rsp_size, &rsp_phys_addr); + if (!rsp_addr) { + err = -ENOMEM; + goto out_free_rq; + } + + memset(rq_addr, 0, rq_size); + prq = (nx_hostrq_tx_ctx_t *)rq_addr; + + memset(rsp_addr, 0, rsp_size); + prsp = (nx_cardrsp_tx_ctx_t *)rsp_addr; + + prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr); + + temp = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN | NX_CAP0_LSO); + prq->capabilities[0] = cpu_to_le32(temp); + + prq->host_int_crb_mode = + cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED); + + prq->interrupt_ctl = 0; + prq->msi_index = 0; + + prq->dummy_dma_addr = cpu_to_le64(adapter->dummy_dma.phys_addr); + + offset = adapter->ctx_desc_phys_addr+sizeof(struct netxen_ring_ctx); + prq->cmd_cons_dma_addr = cpu_to_le64(offset); + + prq_cds = &prq->cds_ring; + + prq_cds->host_phys_addr = + cpu_to_le64(adapter->ahw.cmd_desc_phys_addr); + + prq_cds->ring_size = cpu_to_le32(adapter->max_tx_desc_count); + + phys_addr = rq_phys_addr; + err = netxen_issue_cmd(adapter, + adapter->ahw.pci_func, + NXHAL_VERSION, + (u32)(phys_addr >> 32), + ((u32)phys_addr & 0xffffffff), + rq_size, + NX_CDRP_CMD_CREATE_TX_CTX); + + if (err == NX_RCODE_SUCCESS) { + temp = le32_to_cpu(prsp->cds_ring.host_producer_crb); + adapter->crb_addr_cmd_producer = + NETXEN_NIC_REG(temp - 0x200); +#if 0 + adapter->tx_state = + le32_to_cpu(prsp->host_ctx_state); +#endif + adapter->tx_context_id = + le16_to_cpu(prsp->context_id); + } else { + printk(KERN_WARNING + "Failed to create tx ctx in firmware%d\n", err); + err = -EIO; + } + + pci_free_consistent(adapter->pdev, rsp_size, rsp_addr, rsp_phys_addr); + +out_free_rq: + pci_free_consistent(adapter->pdev, rq_size, rq_addr, rq_phys_addr); + + return err; +} + +static void +nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter) +{ + if (netxen_issue_cmd(adapter, + adapter->ahw.pci_func, + NXHAL_VERSION, + adapter->tx_context_id, + NX_DESTROY_CTX_RESET, + 0, + NX_CDRP_CMD_DESTROY_TX_CTX)) { + + printk(KERN_WARNING + "%s: Failed to destroy tx ctx in firmware\n", + netxen_nic_driver_name); + } +} + +static u64 ctx_addr_sig_regs[][3] = { + {NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)}, + {NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)}, + {NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)}, + {NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)} +}; + +#define CRB_CTX_ADDR_REG_LO(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][0]) +#define CRB_CTX_ADDR_REG_HI(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][2]) +#define CRB_CTX_SIGNATURE_REG(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][1]) + +#define lower32(x) ((u32)((x) & 0xffffffff)) +#define upper32(x) ((u32)(((u64)(x) >> 32) & 0xffffffff)) + +static struct netxen_recv_crb recv_crb_registers[] = { + /* Instance 0 */ + { + /* crb_rcv_producer: */ + { + NETXEN_NIC_REG(0x100), + /* Jumbo frames */ + NETXEN_NIC_REG(0x110), + /* LRO */ + NETXEN_NIC_REG(0x120) + }, + /* crb_sts_consumer: */ + NETXEN_NIC_REG(0x138), + }, + /* Instance 1 */ + { + /* crb_rcv_producer: */ + { + NETXEN_NIC_REG(0x144), + /* Jumbo frames */ + NETXEN_NIC_REG(0x154), + /* LRO */ + NETXEN_NIC_REG(0x164) + }, + /* crb_sts_consumer: */ + NETXEN_NIC_REG(0x17c), + }, + /* Instance 2 */ + { + /* crb_rcv_producer: */ + { + NETXEN_NIC_REG(0x1d8), + /* Jumbo frames */ + NETXEN_NIC_REG(0x1f8), + /* LRO */ + NETXEN_NIC_REG(0x208) + }, + /* crb_sts_consumer: */ + NETXEN_NIC_REG(0x220), + }, + /* Instance 3 */ + { + /* crb_rcv_producer: */ + { + NETXEN_NIC_REG(0x22c), + /* Jumbo frames */ + NETXEN_NIC_REG(0x23c), + /* LRO */ + NETXEN_NIC_REG(0x24c) + }, + /* crb_sts_consumer: */ + NETXEN_NIC_REG(0x264), + }, +}; + +static int +netxen_init_old_ctx(struct netxen_adapter *adapter) +{ + struct netxen_recv_context *recv_ctx; + struct nx_host_rds_ring *rds_ring; + int ctx, ring; + int func_id = adapter->portnum; + + adapter->ctx_desc->cmd_ring_addr = + cpu_to_le64(adapter->ahw.cmd_desc_phys_addr); + adapter->ctx_desc->cmd_ring_size = + cpu_to_le32(adapter->max_tx_desc_count); + + 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]; + + adapter->ctx_desc->rcv_ctx[ring].rcv_ring_addr = + cpu_to_le64(rds_ring->phys_addr); + adapter->ctx_desc->rcv_ctx[ring].rcv_ring_size = + cpu_to_le32(rds_ring->max_rx_desc_count); + } + adapter->ctx_desc->sts_ring_addr = + cpu_to_le64(recv_ctx->rcv_status_desc_phys_addr); + adapter->ctx_desc->sts_ring_size = + cpu_to_le32(adapter->max_rx_desc_count); + } + + adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_LO(func_id), + lower32(adapter->ctx_desc_phys_addr)); + adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_HI(func_id), + upper32(adapter->ctx_desc_phys_addr)); + adapter->pci_write_normalize(adapter, CRB_CTX_SIGNATURE_REG(func_id), + NETXEN_CTX_SIGNATURE | func_id); + return 0; +} + +static uint32_t sw_int_mask[4] = { + CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1, + CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3 +}; + +int netxen_alloc_hw_resources(struct netxen_adapter *adapter) +{ + struct netxen_hardware_context *hw = &adapter->ahw; + u32 state = 0; + void *addr; + int err = 0; + int ctx, ring; + struct netxen_recv_context *recv_ctx; + struct nx_host_rds_ring *rds_ring; + + err = netxen_receive_peg_ready(adapter); + if (err) { + printk(KERN_ERR "Rcv Peg initialization not complete:%x.\n", + state); + return err; + } + + addr = pci_alloc_consistent(adapter->pdev, + sizeof(struct netxen_ring_ctx) + sizeof(uint32_t), + &adapter->ctx_desc_phys_addr); + + if (addr == NULL) { + DPRINTK(ERR, "failed to allocate hw context\n"); + return -ENOMEM; + } + memset(addr, 0, sizeof(struct netxen_ring_ctx)); + adapter->ctx_desc = (struct netxen_ring_ctx *)addr; + adapter->ctx_desc->ctx_id = cpu_to_le32(adapter->portnum); + adapter->ctx_desc->cmd_consumer_offset = + cpu_to_le64(adapter->ctx_desc_phys_addr + + sizeof(struct netxen_ring_ctx)); + adapter->cmd_consumer = + (__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx)); + + /* cmd desc ring */ + addr = pci_alloc_consistent(adapter->pdev, + sizeof(struct cmd_desc_type0) * + adapter->max_tx_desc_count, + &hw->cmd_desc_phys_addr); + + if (addr == NULL) { + printk(KERN_ERR "%s failed to allocate tx desc ring\n", + netxen_nic_driver_name); + return -ENOMEM; + } + + hw->cmd_desc_head = (struct cmd_desc_type0 *)addr; + + for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { + recv_ctx = &adapter->recv_ctx[ctx]; + + for (ring = 0; ring < adapter->max_rds_rings; ring++) { + /* rx desc ring */ + rds_ring = &recv_ctx->rds_rings[ring]; + addr = pci_alloc_consistent(adapter->pdev, + RCV_DESC_RINGSIZE, + &rds_ring->phys_addr); + if (addr == NULL) { + printk(KERN_ERR "%s failed to allocate rx " + "desc ring[%d]\n", + netxen_nic_driver_name, ring); + err = -ENOMEM; + goto err_out_free; + } + rds_ring->desc_head = (struct rcv_desc *)addr; + + if (adapter->fw_major < 4) + rds_ring->crb_rcv_producer = + recv_crb_registers[adapter->portnum]. + crb_rcv_producer[ring]; + } + + /* status desc ring */ + addr = pci_alloc_consistent(adapter->pdev, + STATUS_DESC_RINGSIZE, + &recv_ctx->rcv_status_desc_phys_addr); + if (addr == NULL) { + printk(KERN_ERR "%s failed to allocate sts desc ring\n", + netxen_nic_driver_name); + err = -ENOMEM; + goto err_out_free; + } + recv_ctx->rcv_status_desc_head = (struct status_desc *)addr; + + if (adapter->fw_major < 4) + recv_ctx->crb_sts_consumer = + recv_crb_registers[adapter->portnum]. + crb_sts_consumer; + } + + if (adapter->fw_major >= 4) { + adapter->intr_scheme = INTR_SCHEME_PERPORT; + adapter->msi_mode = MSI_MODE_MULTIFUNC; + + err = nx_fw_cmd_create_rx_ctx(adapter); + if (err) + goto err_out_free; + err = nx_fw_cmd_create_tx_ctx(adapter); + if (err) + goto err_out_free; + } else { + + adapter->intr_scheme = adapter->pci_read_normalize(adapter, + CRB_NIC_CAPABILITIES_FW); + adapter->msi_mode = adapter->pci_read_normalize(adapter, + CRB_NIC_MSI_MODE_FW); + adapter->crb_intr_mask = sw_int_mask[adapter->portnum]; + + err = netxen_init_old_ctx(adapter); + if (err) { + netxen_free_hw_resources(adapter); + return err; + } + + } + + return 0; + +err_out_free: + netxen_free_hw_resources(adapter); + return err; +} + +void netxen_free_hw_resources(struct netxen_adapter *adapter) +{ + struct netxen_recv_context *recv_ctx; + struct nx_host_rds_ring *rds_ring; + int ctx, ring; + + if (adapter->fw_major >= 4) { + nx_fw_cmd_destroy_tx_ctx(adapter); + nx_fw_cmd_destroy_rx_ctx(adapter); + } + + if (adapter->ctx_desc != NULL) { + pci_free_consistent(adapter->pdev, + sizeof(struct netxen_ring_ctx) + + sizeof(uint32_t), + adapter->ctx_desc, + adapter->ctx_desc_phys_addr); + adapter->ctx_desc = NULL; + } + + if (adapter->ahw.cmd_desc_head != NULL) { + pci_free_consistent(adapter->pdev, + sizeof(struct cmd_desc_type0) * + adapter->max_tx_desc_count, + adapter->ahw.cmd_desc_head, + adapter->ahw.cmd_desc_phys_addr); + adapter->ahw.cmd_desc_head = NULL; + } + + 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->desc_head != NULL) { + pci_free_consistent(adapter->pdev, + RCV_DESC_RINGSIZE, + rds_ring->desc_head, + rds_ring->phys_addr); + rds_ring->desc_head = NULL; + } + } + + if (recv_ctx->rcv_status_desc_head != NULL) { + pci_free_consistent(adapter->pdev, + STATUS_DESC_RINGSIZE, + recv_ctx->rcv_status_desc_head, + recv_ctx->rcv_status_desc_phys_addr); + recv_ctx->rcv_status_desc_head = NULL; + } + } +} + diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 7b5124057664..01ab31b34a85 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -262,17 +262,30 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) rds_ring->max_rx_desc_count = adapter->max_rx_desc_count; rds_ring->flags = RCV_DESC_NORMAL; - rds_ring->dma_size = RX_DMA_MAP_LEN; - rds_ring->skb_size = MAX_RX_BUFFER_LENGTH; + 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; - rds_ring->dma_size = RX_JUMBO_DMA_MAP_LEN; + 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 = - MAX_RX_JUMBO_BUFFER_LENGTH; + rds_ring->dma_size + NET_IP_ALIGN; break; case RCV_RING_LRO: @@ -294,6 +307,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) 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 @@ -302,6 +316,8 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) 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++; @@ -1137,15 +1153,47 @@ int netxen_receive_peg_ready(struct netxen_adapter *adapter) 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 *desc, struct status_desc *frag_desc) { - struct pci_dev *pdev = adapter->pdev; struct net_device *netdev = adapter->netdev; u64 sts_data = le64_to_cpu(desc->status_desc_data); int index = netxen_get_sts_refhandle(sts_data); @@ -1154,8 +1202,8 @@ static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, 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; - int ret; desc_ctx = netxen_get_sts_type(sts_data); if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) { @@ -1191,41 +1239,52 @@ static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, } } - pci_unmap_single(pdev, buffer->dma, rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - - skb = (struct sk_buff *)buffer->skb; + cksum = netxen_get_sts_status(sts_data); - if (likely(adapter->rx_csum && - netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) { - adapter->stats.csummed++; - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else - skb->ip_summed = CHECKSUM_NONE; + skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); + if (!skb) + return; - skb->dev = netdev; if (desc_ctx == RCV_DESC_LRO_CTXID) { /* True length was only available on the last pkt */ skb_put(skb, buffer->lro_length); } else { - skb_put(skb, length); + 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); - ret = netif_receive_skb(skb); - netdev->last_rx = jiffies; - /* - * We just consumed one buffer so post a buffer. + * rx buffer chaining is disabled, walk and free + * any spurious rx buffer chain. */ - buffer->skb = NULL; - buffer->state = NETXEN_BUFFER_FREE; - buffer->lro_current_frags = 0; - buffer->lro_expected_frags = 0; + 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 { - adapter->stats.no_rcv++; - adapter->stats.rxbytes += length; + netif_receive_skb(skb); + netdev->last_rx = jiffies; + + adapter->stats.no_rcv++; + adapter->stats.rxbytes += length; + } } /* Process Receive status ring */ @@ -1233,9 +1292,11 @@ 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; /* used to read status desc here */ + 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]; @@ -1244,9 +1305,26 @@ u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max) netxen_get_sts_owner(desc)); break; } - netxen_process_rcv(adapter, ctxid, desc); + + 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 = (consumer + 1) & (adapter->max_rx_desc_count - 1); + + consumer = get_next_index(consumer, + adapter->max_rx_desc_count); count++; } for (ring = 0; ring < adapter->max_rds_rings; ring++) @@ -1348,36 +1426,31 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) 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; - buffer = &rds_ring->rx_buf_arr[index]; + head = &rds_ring->free_list; + /* We can start writing rx descriptors into the phantom memory. */ - while (buffer->state == NETXEN_BUFFER_FREE) { + while (!list_empty(head)) { + skb = dev_alloc_skb(rds_ring->skb_size); if (unlikely(!skb)) { - /* - * TODO - * We need to schedule the posting of buffers to the pegs. - */ rds_ring->begin_alloc = index; - DPRINTK(ERR, "netxen_post_rx_buffers: " - " allocated only %d buffers\n", count); 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 defined(XGB_DEBUG) - *(unsigned long *)(skb->head) = 0xc0debabe; - if (skb_is_nonlinear(skb)) { - printk("Allocated SKB @%p is nonlinear\n"); - } -#endif - skb_reserve(skb, 2); + 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; @@ -1395,7 +1468,6 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) 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) { @@ -1439,32 +1511,29 @@ static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, 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; - buffer = &rds_ring->rx_buf_arr[index]; + head = &rds_ring->free_list; /* We can start writing rx descriptors into the phantom memory. */ - while (buffer->state == NETXEN_BUFFER_FREE) { + while (!list_empty(head)) { + skb = dev_alloc_skb(rds_ring->skb_size); if (unlikely(!skb)) { - /* - * We need to schedule the posting of buffers to the pegs. - */ rds_ring->begin_alloc = index; - DPRINTK(ERR, "netxen_post_rx_buffers_nodb: " - " allocated only %d buffers\n", count); 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]; - skb_reserve(skb, 2); - /* - * This will be setup when we receive the - * buffer after it has been filled - * skb->dev = netdev; - */ + 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, diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index df48f89afff1..b3c084f0c751 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -844,17 +844,18 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Handshake with the card before we register the devices. */ netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - if (NX_IS_REVISION_P3(revision_id)) { - adapter->hw_read_wx(adapter, - NETXEN_MIU_MN_CONTROL, &val, 4); - adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; - dev_info(&pdev->dev, "firmware running in %s mode\n", - adapter->ahw.cut_through ? "cut through" : "legacy"); - } } /* first_driver */ netxen_nic_flash_print(adapter); + if (NX_IS_REVISION_P3(revision_id)) { + adapter->hw_read_wx(adapter, + NETXEN_MIU_MN_CONTROL, &val, 4); + adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; + dev_info(&pdev->dev, "firmware running in %s mode\n", + adapter->ahw.cut_through ? "cut through" : "legacy"); + } + /* * See if the firmware gave us a virtual-physical port mapping. */ |