--- /dev/null
+/*
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called "COPYING".
+ *
+ */
+
+#include "netxen_nic_hw.h"
+#include "netxen_nic.h"
+
+#define NXHAL_VERSION 1
+
+static u32
+netxen_poll_rsp(struct netxen_adapter *adapter)
+{
+ u32 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;
+
+ rsp = NXRD32(adapter, NX_CDRP_CRB_OFFSET);
+ } while (!NX_CDRP_IS_RSP(rsp));
+
+ return rsp;
+}
+
+static u32
+netxen_issue_cmd(struct netxen_adapter *adapter, struct netxen_cmd_args *cmd)
+{
+ u32 rsp;
+ u32 signature = 0;
+ u32 rcode = NX_RCODE_SUCCESS;
+
+ signature = NX_CDRP_SIGNATURE_MAKE(adapter->ahw.pci_func,
+ NXHAL_VERSION);
+ /* Acquire semaphore before accessing CRB */
+ if (netxen_api_lock(adapter))
+ return NX_RCODE_TIMEOUT;
+
+ NXWR32(adapter, NX_SIGN_CRB_OFFSET, signature);
+
+ NXWR32(adapter, NX_ARG1_CRB_OFFSET, cmd->req.arg1);
+
+ NXWR32(adapter, NX_ARG2_CRB_OFFSET, cmd->req.arg2);
+
+ NXWR32(adapter, NX_ARG3_CRB_OFFSET, cmd->req.arg3);
+
+ NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd->req.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) {
+ rcode = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
+
+ printk(KERN_ERR "%s: failed card response code:0x%x\n",
+ netxen_nic_driver_name, rcode);
+ } else if (rsp == NX_CDRP_RSP_OK) {
+ cmd->rsp.cmd = NX_RCODE_SUCCESS;
+ if (cmd->rsp.arg2)
+ cmd->rsp.arg2 = NXRD32(adapter, NX_ARG2_CRB_OFFSET);
+ if (cmd->rsp.arg3)
+ cmd->rsp.arg3 = NXRD32(adapter, NX_ARG3_CRB_OFFSET);
+ }
+
+ if (cmd->rsp.arg1)
+ cmd->rsp.arg1 = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
+ /* Release semaphore */
+ netxen_api_unlock(adapter);
+
+ return rcode;
+}
+
+static int
+netxen_get_minidump_template_size(struct netxen_adapter *adapter)
+{
+ struct netxen_cmd_args cmd;
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.cmd = NX_CDRP_CMD_TEMP_SIZE;
+ memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+ netxen_issue_cmd(adapter, &cmd);
+ if (cmd.rsp.cmd != NX_RCODE_SUCCESS) {
+ dev_info(&adapter->pdev->dev,
+ "Can't get template size %d\n", cmd.rsp.cmd);
+ return -EIO;
+ }
+ adapter->mdump.md_template_size = cmd.rsp.arg2;
+ adapter->mdump.md_template_ver = cmd.rsp.arg3;
+ return 0;
+}
+
+static int
+netxen_get_minidump_template(struct netxen_adapter *adapter)
+{
+ dma_addr_t md_template_addr;
+ void *addr;
+ u32 size;
+ struct netxen_cmd_args cmd;
+ size = adapter->mdump.md_template_size;
+
+ if (size == 0) {
+ dev_err(&adapter->pdev->dev, "Can not capture Minidump "
+ "template. Invalid template size.\n");
+ return NX_RCODE_INVALID_ARGS;
+ }
+
+ addr = pci_zalloc_consistent(adapter->pdev, size, &md_template_addr);
+ if (!addr) {
+ dev_err(&adapter->pdev->dev, "Unable to allocate dmable memory for template.\n");
+ return -ENOMEM;
+ }
+
+ memset(&cmd, 0, sizeof(cmd));
+ memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+ cmd.req.cmd = NX_CDRP_CMD_GET_TEMP_HDR;
+ cmd.req.arg1 = LSD(md_template_addr);
+ cmd.req.arg2 = MSD(md_template_addr);
+ cmd.req.arg3 |= size;
+ netxen_issue_cmd(adapter, &cmd);
+
+ if ((cmd.rsp.cmd == NX_RCODE_SUCCESS) && (size == cmd.rsp.arg2)) {
+ memcpy(adapter->mdump.md_template, addr, size);
+ } else {
+ dev_err(&adapter->pdev->dev, "Failed to get minidump template, "
+ "err_code : %d, requested_size : %d, actual_size : %d\n ",
+ cmd.rsp.cmd, size, cmd.rsp.arg2);
+ }
+ pci_free_consistent(adapter->pdev, size, addr, md_template_addr);
+ return 0;
+}
+
+static u32
+netxen_check_template_checksum(struct netxen_adapter *adapter)
+{
+ u64 sum = 0 ;
+ u32 *buff = adapter->mdump.md_template;
+ int count = adapter->mdump.md_template_size/sizeof(uint32_t) ;
+
+ while (count-- > 0)
+ sum += *buff++ ;
+ while (sum >> 32)
+ sum = (sum & 0xFFFFFFFF) + (sum >> 32) ;
+
+ return ~sum;
+}
+
+int
+netxen_setup_minidump(struct netxen_adapter *adapter)
+{
+ int err = 0, i;
+ u32 *template, *tmp_buf;
+ struct netxen_minidump_template_hdr *hdr;
+ err = netxen_get_minidump_template_size(adapter);
+ if (err) {
+ adapter->mdump.fw_supports_md = 0;
+ if ((err == NX_RCODE_CMD_INVALID) ||
+ (err == NX_RCODE_CMD_NOT_IMPL)) {
+ dev_info(&adapter->pdev->dev,
+ "Flashed firmware version does not support minidump, "
+ "minimum version required is [ %u.%u.%u ].\n ",
+ NX_MD_SUPPORT_MAJOR, NX_MD_SUPPORT_MINOR,
+ NX_MD_SUPPORT_SUBVERSION);
+ }
+ return err;
+ }
+
+ if (!adapter->mdump.md_template_size) {
+ dev_err(&adapter->pdev->dev, "Error : Invalid template size "
+ ",should be non-zero.\n");
+ return -EIO;
+ }
+ adapter->mdump.md_template =
+ kmalloc(adapter->mdump.md_template_size, GFP_KERNEL);
+
+ if (!adapter->mdump.md_template)
+ return -ENOMEM;
+
+ err = netxen_get_minidump_template(adapter);
+ if (err) {
+ if (err == NX_RCODE_CMD_NOT_IMPL)
+ adapter->mdump.fw_supports_md = 0;
+ goto free_template;
+ }
+
+ if (netxen_check_template_checksum(adapter)) {
+ dev_err(&adapter->pdev->dev, "Minidump template checksum Error\n");
+ err = -EIO;
+ goto free_template;
+ }
+
+ adapter->mdump.md_capture_mask = NX_DUMP_MASK_DEF;
+ tmp_buf = (u32 *) adapter->mdump.md_template;
+ template = (u32 *) adapter->mdump.md_template;
+ for (i = 0; i < adapter->mdump.md_template_size/sizeof(u32); i++)
+ *template++ = __le32_to_cpu(*tmp_buf++);
+ hdr = (struct netxen_minidump_template_hdr *)
+ adapter->mdump.md_template;
+ adapter->mdump.md_capture_buff = NULL;
+ adapter->mdump.fw_supports_md = 1;
+ adapter->mdump.md_enabled = 0;
+
+ return err;
+
+free_template:
+ kfree(adapter->mdump.md_template);
+ adapter->mdump.md_template = NULL;
+ return err;
+}
+
+
+int
+nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
+{
+ u32 rcode = NX_RCODE_SUCCESS;
+ struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.cmd = NX_CDRP_CMD_SET_MTU;
+ cmd.req.arg1 = recv_ctx->context_id;
+ cmd.req.arg2 = mtu;
+ cmd.req.arg3 = 0;
+
+ if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
+ netxen_issue_cmd(adapter, &cmd);
+
+ if (rcode != NX_RCODE_SUCCESS)
+ return -EIO;
+
+ return 0;
+}
+
+int
+nx_fw_cmd_set_gbe_port(struct netxen_adapter *adapter,
+ u32 speed, u32 duplex, u32 autoneg)
+{
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.cmd = NX_CDRP_CMD_CONFIG_GBE_PORT;
+ cmd.req.arg1 = speed;
+ cmd.req.arg2 = duplex;
+ cmd.req.arg3 = autoneg;
+ return netxen_issue_cmd(adapter, &cmd);
+}
+
+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;
+ struct nx_host_sds_ring *sds_ring;
+ struct netxen_cmd_args cmd;
+
+ 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, val;
+
+ int err;
+
+ struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+ nrds_rings = adapter->max_rds_rings;
+ nsds_rings = adapter->max_sds_rings;
+
+ 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 = addr;
+
+ addr = pci_alloc_consistent(adapter->pdev,
+ rsp_size, &cardrsp_phys_addr);
+ if (addr == NULL) {
+ err = -ENOMEM;
+ goto out_free_rq;
+ }
+ prsp = 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);
+
+ if (adapter->flags & NETXEN_FW_MSS_CAP)
+ cap |= NX_CAP0_HW_LRO_MSS;
+
+ 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 = cpu_to_le32(0);
+
+ val = le32_to_cpu(prq->rds_ring_offset) +
+ (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
+ prq->sds_ring_offset = cpu_to_le32(val);
+
+ prq_rds = (nx_hostrq_rds_ring_t *)(prq->data +
+ le32_to_cpu(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->num_desc);
+ 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 +
+ le32_to_cpu(prq->sds_ring_offset));
+
+ for (i = 0; i < nsds_rings; i++) {
+
+ sds_ring = &recv_ctx->sds_rings[i];
+
+ prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
+ prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
+ prq_sds[i].msi_index = cpu_to_le16(i);
+ }
+
+ phys_addr = hostrq_phys_addr;
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = (u32)(phys_addr >> 32);
+ cmd.req.arg2 = (u32)(phys_addr & 0xffffffff);
+ cmd.req.arg3 = rq_size;
+ cmd.req.cmd = NX_CDRP_CMD_CREATE_RX_CTX;
+ err = netxen_issue_cmd(adapter, &cmd);
+ 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[le32_to_cpu(prsp->rds_ring_offset)]);
+
+ for (i = 0; i < le16_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_get_ioaddr(adapter,
+ NETXEN_NIC_REG(reg - 0x200));
+ }
+
+ prsp_sds = ((nx_cardrsp_sds_ring_t *)
+ &prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
+
+ for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
+ sds_ring = &recv_ctx->sds_rings[i];
+
+ reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
+ sds_ring->crb_sts_consumer = netxen_get_ioaddr(adapter,
+ NETXEN_NIC_REG(reg - 0x200));
+
+ reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
+ sds_ring->crb_intr_mask = netxen_get_ioaddr(adapter,
+ 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 = 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;
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = recv_ctx->context_id;
+ cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+ cmd.req.arg3 = 0;
+ cmd.req.cmd = NX_CDRP_CMD_DESTROY_RX_CTX;
+
+ if (netxen_issue_cmd(adapter, &cmd)) {
+ 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;
+ struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
+ struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+ struct netxen_cmd_args cmd;
+
+ 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 = rq_addr;
+
+ memset(rsp_addr, 0, rsp_size);
+ prsp = 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 = recv_ctx->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(tx_ring->phys_addr);
+ prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
+
+ phys_addr = rq_phys_addr;
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = (u32)(phys_addr >> 32);
+ cmd.req.arg2 = ((u32)phys_addr & 0xffffffff);
+ cmd.req.arg3 = rq_size;
+ cmd.req.cmd = NX_CDRP_CMD_CREATE_TX_CTX;
+ err = netxen_issue_cmd(adapter, &cmd);
+
+ if (err == NX_RCODE_SUCCESS) {
+ temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
+ tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
+ 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)
+{
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = adapter->tx_context_id;
+ cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+ cmd.req.arg3 = 0;
+ cmd.req.cmd = NX_CDRP_CMD_DESTROY_TX_CTX;
+ if (netxen_issue_cmd(adapter, &cmd)) {
+ printk(KERN_WARNING
+ "%s: Failed to destroy tx ctx in firmware\n",
+ netxen_nic_driver_name);
+ }
+}
+
+int
+nx_fw_cmd_query_phy(struct netxen_adapter *adapter, u32 reg, u32 *val)
+{
+ u32 rcode;
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = reg;
+ cmd.req.arg2 = 0;
+ cmd.req.arg3 = 0;
+ cmd.req.cmd = NX_CDRP_CMD_READ_PHY;
+ cmd.rsp.arg1 = 1;
+ rcode = netxen_issue_cmd(adapter, &cmd);
+ if (rcode != NX_RCODE_SUCCESS)
+ return -EIO;
+
+ if (val == NULL)
+ return -EIO;
+
+ *val = cmd.rsp.arg1;
+ return 0;
+}
+
+int
+nx_fw_cmd_set_phy(struct netxen_adapter *adapter, u32 reg, u32 val)
+{
+ u32 rcode;
+ struct netxen_cmd_args cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.req.arg1 = reg;
+ cmd.req.arg2 = val;
+ cmd.req.arg3 = 0;
+ cmd.req.cmd = NX_CDRP_CMD_WRITE_PHY;
+ rcode = netxen_issue_cmd(adapter, &cmd);
+ if (rcode != NX_RCODE_SUCCESS)
+ return -EIO;
+
+ return 0;
+}
+
+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),
+ NETXEN_NIC_REG_2(0x000),
+ NETXEN_NIC_REG_2(0x004),
+ NETXEN_NIC_REG_2(0x008),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_0,
+ NETXEN_NIC_REG_2(0x044),
+ NETXEN_NIC_REG_2(0x048),
+ NETXEN_NIC_REG_2(0x04c),
+ },
+ },
+ /* 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),
+ NETXEN_NIC_REG_2(0x020),
+ NETXEN_NIC_REG_2(0x024),
+ NETXEN_NIC_REG_2(0x028),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_1,
+ NETXEN_NIC_REG_2(0x064),
+ NETXEN_NIC_REG_2(0x068),
+ NETXEN_NIC_REG_2(0x06c),
+ },
+ },
+ /* 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),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_2,
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ },
+ /* 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),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_3,
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ },
+};
+
+static int
+netxen_init_old_ctx(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;
+ int ring;
+ int port = adapter->portnum;
+ struct netxen_ring_ctx *hwctx;
+ u32 signature;
+
+ tx_ring = adapter->tx_ring;
+ recv_ctx = &adapter->recv_ctx;
+ hwctx = recv_ctx->hwctx;
+
+ hwctx->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
+ hwctx->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
+
+
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &recv_ctx->rds_rings[ring];
+
+ hwctx->rcv_rings[ring].addr =
+ cpu_to_le64(rds_ring->phys_addr);
+ hwctx->rcv_rings[ring].size =
+ cpu_to_le32(rds_ring->num_desc);
+ }
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+
+ if (ring == 0) {
+ hwctx->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
+ hwctx->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
+ }
+ hwctx->sts_rings[ring].addr = cpu_to_le64(sds_ring->phys_addr);
+ hwctx->sts_rings[ring].size = cpu_to_le32(sds_ring->num_desc);
+ hwctx->sts_rings[ring].msi_index = cpu_to_le16(ring);
+ }
+ hwctx->sts_ring_count = cpu_to_le32(adapter->max_sds_rings);
+
+ signature = (adapter->max_sds_rings > 1) ?
+ NETXEN_CTX_SIGNATURE_V2 : NETXEN_CTX_SIGNATURE;
+
+ NXWR32(adapter, CRB_CTX_ADDR_REG_LO(port),
+ lower32(recv_ctx->phys_addr));
+ NXWR32(adapter, CRB_CTX_ADDR_REG_HI(port),
+ upper32(recv_ctx->phys_addr));
+ NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+ signature | port);
+ return 0;
+}
+
+int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
+{
+ void *addr;
+ int err = 0;
+ int ring;
+ 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 pci_dev *pdev = adapter->pdev;
+ struct net_device *netdev = adapter->netdev;
+ int port = adapter->portnum;
+
+ recv_ctx = &adapter->recv_ctx;
+ tx_ring = adapter->tx_ring;
+
+ addr = pci_alloc_consistent(pdev,
+ sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
+ &recv_ctx->phys_addr);
+ if (addr == NULL) {
+ dev_err(&pdev->dev, "failed to allocate hw context\n");
+ return -ENOMEM;
+ }
+
+ memset(addr, 0, sizeof(struct netxen_ring_ctx));
+ recv_ctx->hwctx = addr;
+ recv_ctx->hwctx->ctx_id = cpu_to_le32(port);
+ recv_ctx->hwctx->cmd_consumer_offset =
+ cpu_to_le64(recv_ctx->phys_addr +
+ sizeof(struct netxen_ring_ctx));
+ tx_ring->hw_consumer =
+ (__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx));
+
+ /* cmd desc ring */
+ addr = pci_alloc_consistent(pdev, TX_DESC_RINGSIZE(tx_ring),
+ &tx_ring->phys_addr);
+
+ if (addr == NULL) {
+ dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
+ netdev->name);
+ err = -ENOMEM;
+ goto err_out_free;
+ }
+
+ tx_ring->desc_head = addr;
+
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &recv_ctx->rds_rings[ring];
+ addr = pci_alloc_consistent(adapter->pdev,
+ RCV_DESC_RINGSIZE(rds_ring),
+ &rds_ring->phys_addr);
+ if (addr == NULL) {
+ dev_err(&pdev->dev,
+ "%s: failed to allocate rds ring [%d]\n",
+ netdev->name, ring);
+ err = -ENOMEM;
+ goto err_out_free;
+ }
+ rds_ring->desc_head = addr;
+
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+ rds_ring->crb_rcv_producer =
+ netxen_get_ioaddr(adapter,
+ recv_crb_registers[port].crb_rcv_producer[ring]);
+ }
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+
+ addr = pci_alloc_consistent(adapter->pdev,
+ STATUS_DESC_RINGSIZE(sds_ring),
+ &sds_ring->phys_addr);
+ if (addr == NULL) {
+ dev_err(&pdev->dev,
+ "%s: failed to allocate sds ring [%d]\n",
+ netdev->name, ring);
+ err = -ENOMEM;
+ goto err_out_free;
+ }
+ sds_ring->desc_head = addr;
+
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+ sds_ring->crb_sts_consumer =
+ netxen_get_ioaddr(adapter,
+ recv_crb_registers[port].crb_sts_consumer[ring]);
+
+ sds_ring->crb_intr_mask =
+ netxen_get_ioaddr(adapter,
+ recv_crb_registers[port].sw_int_mask[ring]);
+ }
+ }
+
+
+ if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+ if (test_and_set_bit(__NX_FW_ATTACHED, &adapter->state))
+ goto done;
+ 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 {
+ err = netxen_init_old_ctx(adapter);
+ if (err)
+ goto err_out_free;
+ }
+
+done:
+ 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;
+ struct nx_host_sds_ring *sds_ring;
+ struct nx_host_tx_ring *tx_ring;
+ int ring;
+
+ int port = adapter->portnum;
+
+ if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+ if (!test_and_clear_bit(__NX_FW_ATTACHED, &adapter->state))
+ goto done;
+
+ nx_fw_cmd_destroy_rx_ctx(adapter);
+ nx_fw_cmd_destroy_tx_ctx(adapter);
+ } else {
+ netxen_api_lock(adapter);
+ NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+ NETXEN_CTX_D3_RESET | port);
+ netxen_api_unlock(adapter);
+ }
+
+ /* Allow dma queues to drain after context reset */
+ msleep(20);
+
+done:
+ recv_ctx = &adapter->recv_ctx;
+
+ if (recv_ctx->hwctx != NULL) {
+ pci_free_consistent(adapter->pdev,
+ sizeof(struct netxen_ring_ctx) +
+ sizeof(uint32_t),
+ recv_ctx->hwctx,
+ recv_ctx->phys_addr);
+ recv_ctx->hwctx = NULL;
+ }
+
+ tx_ring = adapter->tx_ring;
+ if (tx_ring->desc_head != NULL) {
+ pci_free_consistent(adapter->pdev,
+ TX_DESC_RINGSIZE(tx_ring),
+ tx_ring->desc_head, tx_ring->phys_addr);
+ tx_ring->desc_head = NULL;
+ }
+
+ 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),
+ rds_ring->desc_head,
+ rds_ring->phys_addr);
+ rds_ring->desc_head = NULL;
+ }
+ }
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+
+ if (sds_ring->desc_head != NULL) {
+ pci_free_consistent(adapter->pdev,
+ STATUS_DESC_RINGSIZE(sds_ring),
+ sds_ring->desc_head,
+ sds_ring->phys_addr);
+ sds_ring->desc_head = NULL;
+ }
+ }
+}
+
Code Review / kvmfornfv.git / blobdiff