536 lines
13 KiB
C
536 lines
13 KiB
C
/*
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* Copyright (C) 2009 - QLogic Corporation.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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* The full GNU General Public License is included in this distribution
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* in the file called "COPYING".
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*
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*/
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#include "qlcnic.h"
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static u32
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qlcnic_poll_rsp(struct qlcnic_adapter *adapter)
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{
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u32 rsp;
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int timeout = 0;
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do {
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/* give atleast 1ms for firmware to respond */
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msleep(1);
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if (++timeout > QLCNIC_OS_CRB_RETRY_COUNT)
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return QLCNIC_CDRP_RSP_TIMEOUT;
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rsp = QLCRD32(adapter, QLCNIC_CDRP_CRB_OFFSET);
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} while (!QLCNIC_CDRP_IS_RSP(rsp));
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return rsp;
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}
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u32
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qlcnic_issue_cmd(struct qlcnic_adapter *adapter,
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u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd)
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{
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u32 rsp;
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u32 signature;
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u32 rcode = QLCNIC_RCODE_SUCCESS;
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struct pci_dev *pdev = adapter->pdev;
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signature = QLCNIC_CDRP_SIGNATURE_MAKE(pci_fn, version);
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/* Acquire semaphore before accessing CRB */
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if (qlcnic_api_lock(adapter))
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return QLCNIC_RCODE_TIMEOUT;
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QLCWR32(adapter, QLCNIC_SIGN_CRB_OFFSET, signature);
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QLCWR32(adapter, QLCNIC_ARG1_CRB_OFFSET, arg1);
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QLCWR32(adapter, QLCNIC_ARG2_CRB_OFFSET, arg2);
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QLCWR32(adapter, QLCNIC_ARG3_CRB_OFFSET, arg3);
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QLCWR32(adapter, QLCNIC_CDRP_CRB_OFFSET, QLCNIC_CDRP_FORM_CMD(cmd));
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rsp = qlcnic_poll_rsp(adapter);
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if (rsp == QLCNIC_CDRP_RSP_TIMEOUT) {
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dev_err(&pdev->dev, "card response timeout.\n");
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rcode = QLCNIC_RCODE_TIMEOUT;
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} else if (rsp == QLCNIC_CDRP_RSP_FAIL) {
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rcode = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
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dev_err(&pdev->dev, "failed card response code:0x%x\n",
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rcode);
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}
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/* Release semaphore */
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qlcnic_api_unlock(adapter);
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return rcode;
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}
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int
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qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu)
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{
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struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
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if (recv_ctx->state == QLCNIC_HOST_CTX_STATE_ACTIVE) {
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if (qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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recv_ctx->context_id,
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mtu,
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0,
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QLCNIC_CDRP_CMD_SET_MTU)) {
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dev_err(&adapter->pdev->dev, "Failed to set mtu\n");
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return -EIO;
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}
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}
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return 0;
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}
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static int
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qlcnic_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
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{
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void *addr;
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struct qlcnic_hostrq_rx_ctx *prq;
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struct qlcnic_cardrsp_rx_ctx *prsp;
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struct qlcnic_hostrq_rds_ring *prq_rds;
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struct qlcnic_hostrq_sds_ring *prq_sds;
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struct qlcnic_cardrsp_rds_ring *prsp_rds;
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struct qlcnic_cardrsp_sds_ring *prsp_sds;
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struct qlcnic_host_rds_ring *rds_ring;
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struct qlcnic_host_sds_ring *sds_ring;
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dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
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u64 phys_addr;
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int i, nrds_rings, nsds_rings;
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size_t rq_size, rsp_size;
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u32 cap, reg, val;
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int err;
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struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
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nrds_rings = adapter->max_rds_rings;
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nsds_rings = adapter->max_sds_rings;
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rq_size =
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SIZEOF_HOSTRQ_RX(struct qlcnic_hostrq_rx_ctx, nrds_rings,
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nsds_rings);
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rsp_size =
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SIZEOF_CARDRSP_RX(struct qlcnic_cardrsp_rx_ctx, nrds_rings,
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nsds_rings);
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addr = pci_alloc_consistent(adapter->pdev,
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rq_size, &hostrq_phys_addr);
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if (addr == NULL)
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return -ENOMEM;
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prq = (struct qlcnic_hostrq_rx_ctx *)addr;
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addr = pci_alloc_consistent(adapter->pdev,
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rsp_size, &cardrsp_phys_addr);
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if (addr == NULL) {
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err = -ENOMEM;
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goto out_free_rq;
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}
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prsp = (struct qlcnic_cardrsp_rx_ctx *)addr;
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prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
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cap = (QLCNIC_CAP0_LEGACY_CONTEXT | QLCNIC_CAP0_LEGACY_MN);
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cap |= (QLCNIC_CAP0_JUMBO_CONTIGUOUS | QLCNIC_CAP0_LRO_CONTIGUOUS);
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prq->capabilities[0] = cpu_to_le32(cap);
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prq->host_int_crb_mode =
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cpu_to_le32(QLCNIC_HOST_INT_CRB_MODE_SHARED);
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prq->host_rds_crb_mode =
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cpu_to_le32(QLCNIC_HOST_RDS_CRB_MODE_UNIQUE);
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prq->num_rds_rings = cpu_to_le16(nrds_rings);
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prq->num_sds_rings = cpu_to_le16(nsds_rings);
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prq->rds_ring_offset = cpu_to_le32(0);
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val = le32_to_cpu(prq->rds_ring_offset) +
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(sizeof(struct qlcnic_hostrq_rds_ring) * nrds_rings);
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prq->sds_ring_offset = cpu_to_le32(val);
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prq_rds = (struct qlcnic_hostrq_rds_ring *)(prq->data +
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le32_to_cpu(prq->rds_ring_offset));
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for (i = 0; i < nrds_rings; i++) {
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rds_ring = &recv_ctx->rds_rings[i];
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prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
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prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
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prq_rds[i].ring_kind = cpu_to_le32(i);
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prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
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}
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prq_sds = (struct qlcnic_hostrq_sds_ring *)(prq->data +
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le32_to_cpu(prq->sds_ring_offset));
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for (i = 0; i < nsds_rings; i++) {
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sds_ring = &recv_ctx->sds_rings[i];
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prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
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prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
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prq_sds[i].msi_index = cpu_to_le16(i);
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}
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phys_addr = hostrq_phys_addr;
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err = qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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(u32)(phys_addr >> 32),
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(u32)(phys_addr & 0xffffffff),
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rq_size,
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QLCNIC_CDRP_CMD_CREATE_RX_CTX);
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if (err) {
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dev_err(&adapter->pdev->dev,
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"Failed to create rx ctx in firmware%d\n", err);
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goto out_free_rsp;
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}
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prsp_rds = ((struct qlcnic_cardrsp_rds_ring *)
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&prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
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for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
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rds_ring = &recv_ctx->rds_rings[i];
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reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
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rds_ring->crb_rcv_producer = qlcnic_get_ioaddr(adapter,
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QLCNIC_REG(reg - 0x200));
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}
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prsp_sds = ((struct qlcnic_cardrsp_sds_ring *)
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&prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
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for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
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sds_ring = &recv_ctx->sds_rings[i];
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reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
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sds_ring->crb_sts_consumer = qlcnic_get_ioaddr(adapter,
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QLCNIC_REG(reg - 0x200));
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reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
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sds_ring->crb_intr_mask = qlcnic_get_ioaddr(adapter,
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QLCNIC_REG(reg - 0x200));
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}
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recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
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recv_ctx->context_id = le16_to_cpu(prsp->context_id);
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recv_ctx->virt_port = prsp->virt_port;
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out_free_rsp:
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pci_free_consistent(adapter->pdev, rsp_size, prsp, cardrsp_phys_addr);
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out_free_rq:
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pci_free_consistent(adapter->pdev, rq_size, prq, hostrq_phys_addr);
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return err;
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}
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static void
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qlcnic_fw_cmd_destroy_rx_ctx(struct qlcnic_adapter *adapter)
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{
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struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
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if (qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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recv_ctx->context_id,
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QLCNIC_DESTROY_CTX_RESET,
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0,
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QLCNIC_CDRP_CMD_DESTROY_RX_CTX)) {
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dev_err(&adapter->pdev->dev,
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"Failed to destroy rx ctx in firmware\n");
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}
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}
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static int
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qlcnic_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter)
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{
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struct qlcnic_hostrq_tx_ctx *prq;
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struct qlcnic_hostrq_cds_ring *prq_cds;
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struct qlcnic_cardrsp_tx_ctx *prsp;
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void *rq_addr, *rsp_addr;
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size_t rq_size, rsp_size;
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u32 temp;
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int err;
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u64 phys_addr;
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dma_addr_t rq_phys_addr, rsp_phys_addr;
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struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
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rq_size = SIZEOF_HOSTRQ_TX(struct qlcnic_hostrq_tx_ctx);
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rq_addr = pci_alloc_consistent(adapter->pdev,
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rq_size, &rq_phys_addr);
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if (!rq_addr)
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return -ENOMEM;
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rsp_size = SIZEOF_CARDRSP_TX(struct qlcnic_cardrsp_tx_ctx);
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rsp_addr = pci_alloc_consistent(adapter->pdev,
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rsp_size, &rsp_phys_addr);
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if (!rsp_addr) {
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err = -ENOMEM;
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goto out_free_rq;
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}
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memset(rq_addr, 0, rq_size);
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prq = (struct qlcnic_hostrq_tx_ctx *)rq_addr;
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memset(rsp_addr, 0, rsp_size);
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prsp = (struct qlcnic_cardrsp_tx_ctx *)rsp_addr;
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prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
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temp = (QLCNIC_CAP0_LEGACY_CONTEXT | QLCNIC_CAP0_LEGACY_MN |
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QLCNIC_CAP0_LSO);
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prq->capabilities[0] = cpu_to_le32(temp);
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prq->host_int_crb_mode =
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cpu_to_le32(QLCNIC_HOST_INT_CRB_MODE_SHARED);
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prq->interrupt_ctl = 0;
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prq->msi_index = 0;
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prq->cmd_cons_dma_addr = cpu_to_le64(tx_ring->hw_cons_phys_addr);
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prq_cds = &prq->cds_ring;
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prq_cds->host_phys_addr = cpu_to_le64(tx_ring->phys_addr);
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prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
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phys_addr = rq_phys_addr;
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err = qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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(u32)(phys_addr >> 32),
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((u32)phys_addr & 0xffffffff),
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rq_size,
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QLCNIC_CDRP_CMD_CREATE_TX_CTX);
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if (err == QLCNIC_RCODE_SUCCESS) {
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temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
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tx_ring->crb_cmd_producer = qlcnic_get_ioaddr(adapter,
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QLCNIC_REG(temp - 0x200));
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adapter->tx_context_id =
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le16_to_cpu(prsp->context_id);
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} else {
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dev_err(&adapter->pdev->dev,
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"Failed to create tx ctx in firmware%d\n", err);
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err = -EIO;
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}
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pci_free_consistent(adapter->pdev, rsp_size, rsp_addr, rsp_phys_addr);
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out_free_rq:
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pci_free_consistent(adapter->pdev, rq_size, rq_addr, rq_phys_addr);
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return err;
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}
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static void
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qlcnic_fw_cmd_destroy_tx_ctx(struct qlcnic_adapter *adapter)
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{
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if (qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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adapter->tx_context_id,
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QLCNIC_DESTROY_CTX_RESET,
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0,
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QLCNIC_CDRP_CMD_DESTROY_TX_CTX)) {
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dev_err(&adapter->pdev->dev,
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"Failed to destroy tx ctx in firmware\n");
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}
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}
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int
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qlcnic_fw_cmd_query_phy(struct qlcnic_adapter *adapter, u32 reg, u32 *val)
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{
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if (qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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reg,
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0,
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0,
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QLCNIC_CDRP_CMD_READ_PHY)) {
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return -EIO;
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}
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return QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET);
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}
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int
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qlcnic_fw_cmd_set_phy(struct qlcnic_adapter *adapter, u32 reg, u32 val)
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{
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return qlcnic_issue_cmd(adapter,
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adapter->ahw.pci_func,
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QLCHAL_VERSION,
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reg,
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val,
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0,
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QLCNIC_CDRP_CMD_WRITE_PHY);
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}
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int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
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{
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void *addr;
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int err;
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int ring;
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struct qlcnic_recv_context *recv_ctx;
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struct qlcnic_host_rds_ring *rds_ring;
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struct qlcnic_host_sds_ring *sds_ring;
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struct qlcnic_host_tx_ring *tx_ring;
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struct pci_dev *pdev = adapter->pdev;
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recv_ctx = &adapter->recv_ctx;
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tx_ring = adapter->tx_ring;
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tx_ring->hw_consumer = (__le32 *)pci_alloc_consistent(pdev, sizeof(u32),
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&tx_ring->hw_cons_phys_addr);
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if (tx_ring->hw_consumer == NULL) {
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dev_err(&pdev->dev, "failed to allocate tx consumer\n");
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return -ENOMEM;
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}
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*(tx_ring->hw_consumer) = 0;
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/* cmd desc ring */
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addr = pci_alloc_consistent(pdev, TX_DESC_RINGSIZE(tx_ring),
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&tx_ring->phys_addr);
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if (addr == NULL) {
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dev_err(&pdev->dev, "failed to allocate tx desc ring\n");
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err = -ENOMEM;
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goto err_out_free;
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}
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tx_ring->desc_head = (struct cmd_desc_type0 *)addr;
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for (ring = 0; ring < adapter->max_rds_rings; ring++) {
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rds_ring = &recv_ctx->rds_rings[ring];
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addr = pci_alloc_consistent(adapter->pdev,
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RCV_DESC_RINGSIZE(rds_ring),
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&rds_ring->phys_addr);
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if (addr == NULL) {
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dev_err(&pdev->dev,
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"failed to allocate rds ring [%d]\n", ring);
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err = -ENOMEM;
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goto err_out_free;
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}
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rds_ring->desc_head = (struct rcv_desc *)addr;
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}
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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addr = pci_alloc_consistent(adapter->pdev,
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STATUS_DESC_RINGSIZE(sds_ring),
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&sds_ring->phys_addr);
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if (addr == NULL) {
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dev_err(&pdev->dev,
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"failed to allocate sds ring [%d]\n", ring);
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err = -ENOMEM;
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goto err_out_free;
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}
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sds_ring->desc_head = (struct status_desc *)addr;
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}
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err = qlcnic_fw_cmd_create_rx_ctx(adapter);
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if (err)
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goto err_out_free;
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err = qlcnic_fw_cmd_create_tx_ctx(adapter);
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if (err)
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goto err_out_free;
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set_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
|
|
return 0;
|
|
|
|
err_out_free:
|
|
qlcnic_free_hw_resources(adapter);
|
|
return err;
|
|
}
|
|
|
|
void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
|
|
{
|
|
struct qlcnic_recv_context *recv_ctx;
|
|
struct qlcnic_host_rds_ring *rds_ring;
|
|
struct qlcnic_host_sds_ring *sds_ring;
|
|
struct qlcnic_host_tx_ring *tx_ring;
|
|
int ring;
|
|
|
|
|
|
if (test_and_clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state)) {
|
|
qlcnic_fw_cmd_destroy_rx_ctx(adapter);
|
|
qlcnic_fw_cmd_destroy_tx_ctx(adapter);
|
|
|
|
/* Allow dma queues to drain after context reset */
|
|
msleep(20);
|
|
}
|
|
|
|
recv_ctx = &adapter->recv_ctx;
|
|
|
|
tx_ring = adapter->tx_ring;
|
|
if (tx_ring->hw_consumer != NULL) {
|
|
pci_free_consistent(adapter->pdev,
|
|
sizeof(u32),
|
|
tx_ring->hw_consumer,
|
|
tx_ring->hw_cons_phys_addr);
|
|
tx_ring->hw_consumer = NULL;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|