// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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* Copyright (c) 2019-2020 Marvell International Ltd.
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*/
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#include <linux/bitops.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/errno.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/string.h>
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#include <linux/if_vlan.h>
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#include "qed.h"
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#include "qed_cxt.h"
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#include "qed_dcbx.h"
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#include "qed_hsi.h"
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#include "qed_hw.h"
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#include "qed_init_ops.h"
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#include "qed_int.h"
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#include "qed_ll2.h"
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#include "qed_mcp.h"
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#include "qed_reg_addr.h"
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#include <linux/qed/qed_rdma_if.h>
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#include "qed_rdma.h"
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#include "qed_roce.h"
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#include "qed_sp.h"
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static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid);
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static int qed_roce_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code,
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__le16 echo, union event_ring_data *data,
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u8 fw_return_code)
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{
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struct qed_rdma_events events = p_hwfn->p_rdma_info->events;
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union rdma_eqe_data *rdata = &data->rdma_data;
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if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) {
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u16 icid = (u16)le32_to_cpu(rdata->rdma_destroy_qp_data.cid);
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/* icid release in this async event can occur only if the icid
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* was offloaded to the FW. In case it wasn't offloaded this is
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* handled in qed_roce_sp_destroy_qp.
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*/
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qed_roce_free_real_icid(p_hwfn, icid);
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} else if (fw_event_code == ROCE_ASYNC_EVENT_SRQ_EMPTY ||
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fw_event_code == ROCE_ASYNC_EVENT_SRQ_LIMIT) {
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u16 srq_id = (u16)le32_to_cpu(rdata->async_handle.lo);
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events.affiliated_event(events.context, fw_event_code,
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&srq_id);
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} else {
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events.affiliated_event(events.context, fw_event_code,
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(void *)&rdata->async_handle);
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}
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return 0;
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}
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void qed_roce_stop(struct qed_hwfn *p_hwfn)
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{
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struct qed_bmap *rcid_map = &p_hwfn->p_rdma_info->real_cid_map;
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int wait_count = 0;
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/* when destroying a_RoCE QP the control is returned to the user after
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* the synchronous part. The asynchronous part may take a little longer.
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* We delay for a short while if an async destroy QP is still expected.
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* Beyond the added delay we clear the bitmap anyway.
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*/
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while (bitmap_weight(rcid_map->bitmap, rcid_map->max_count)) {
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/* If the HW device is during recovery, all resources are
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* immediately reset without receiving a per-cid indication
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* from HW. In this case we don't expect the cid bitmap to be
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* cleared.
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*/
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if (p_hwfn->cdev->recov_in_prog)
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return;
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msleep(100);
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if (wait_count++ > 20) {
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DP_NOTICE(p_hwfn, "cid bitmap wait timed out\n");
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break;
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}
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}
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}
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static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid,
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__le32 *dst_gid)
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{
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u32 i;
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if (qp->roce_mode == ROCE_V2_IPV4) {
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/* The IPv4 addresses shall be aligned to the highest word.
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* The lower words must be zero.
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*/
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memset(src_gid, 0, sizeof(union qed_gid));
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memset(dst_gid, 0, sizeof(union qed_gid));
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src_gid[3] = cpu_to_le32(qp->sgid.ipv4_addr);
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dst_gid[3] = cpu_to_le32(qp->dgid.ipv4_addr);
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} else {
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/* GIDs and IPv6 addresses coincide in location and size */
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for (i = 0; i < ARRAY_SIZE(qp->sgid.dwords); i++) {
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src_gid[i] = cpu_to_le32(qp->sgid.dwords[i]);
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dst_gid[i] = cpu_to_le32(qp->dgid.dwords[i]);
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}
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}
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}
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static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode)
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{
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switch (roce_mode) {
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case ROCE_V1:
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return PLAIN_ROCE;
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case ROCE_V2_IPV4:
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return RROCE_IPV4;
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case ROCE_V2_IPV6:
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return RROCE_IPV6;
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default:
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return MAX_ROCE_FLAVOR;
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}
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}
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static void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid)
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{
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
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qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid + 1);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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}
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int qed_roce_alloc_cid(struct qed_hwfn *p_hwfn, u16 *cid)
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{
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struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
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u32 responder_icid;
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u32 requester_icid;
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int rc;
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
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&responder_icid);
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if (rc) {
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spin_unlock_bh(&p_rdma_info->lock);
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return rc;
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}
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rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
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&requester_icid);
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spin_unlock_bh(&p_rdma_info->lock);
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if (rc)
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goto err;
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/* the two icid's should be adjacent */
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if ((requester_icid - responder_icid) != 1) {
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DP_NOTICE(p_hwfn, "Failed to allocate two adjacent qp's'\n");
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rc = -EINVAL;
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goto err;
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}
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responder_icid += qed_cxt_get_proto_cid_start(p_hwfn,
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p_rdma_info->proto);
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requester_icid += qed_cxt_get_proto_cid_start(p_hwfn,
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p_rdma_info->proto);
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/* If these icids require a new ILT line allocate DMA-able context for
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* an ILT page
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*/
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rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, responder_icid);
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if (rc)
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goto err;
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rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, requester_icid);
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if (rc)
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goto err;
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*cid = (u16)responder_icid;
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return rc;
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err:
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spin_lock_bh(&p_rdma_info->lock);
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qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, responder_icid);
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qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, requester_icid);
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spin_unlock_bh(&p_rdma_info->lock);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
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"Allocate CID - failed, rc = %d\n", rc);
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return rc;
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}
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static void qed_roce_set_real_cid(struct qed_hwfn *p_hwfn, u32 cid)
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{
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, cid);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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}
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static u8 qed_roce_get_qp_tc(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
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{
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u8 pri, tc = 0;
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if (qp->vlan_id) {
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pri = (qp->vlan_id & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
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tc = qed_dcbx_get_priority_tc(p_hwfn, pri);
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}
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DP_VERBOSE(p_hwfn, QED_MSG_SP,
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"qp icid %u tc: %u (vlan priority %s)\n",
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qp->icid, tc, qp->vlan_id ? "enabled" : "disabled");
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return tc;
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}
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static int qed_roce_sp_create_responder(struct qed_hwfn *p_hwfn,
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struct qed_rdma_qp *qp)
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{
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struct roce_create_qp_resp_ramrod_data *p_ramrod;
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u16 regular_latency_queue, low_latency_queue;
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struct qed_sp_init_data init_data;
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struct qed_spq_entry *p_ent;
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enum protocol_type proto;
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u32 flags = 0;
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int rc;
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u8 tc;
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if (!qp->has_resp)
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return 0;
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
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/* Allocate DMA-able memory for IRQ */
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qp->irq_num_pages = 1;
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qp->irq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
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RDMA_RING_PAGE_SIZE,
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&qp->irq_phys_addr, GFP_KERNEL);
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if (!qp->irq) {
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rc = -ENOMEM;
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DP_NOTICE(p_hwfn,
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"qed create responder failed: cannot allocate memory (irq). rc = %d\n",
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rc);
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return rc;
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}
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/* Get SPQ entry */
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memset(&init_data, 0, sizeof(init_data));
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init_data.cid = qp->icid;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_QP,
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PROTOCOLID_ROCE, &init_data);
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if (rc)
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goto err;
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR,
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qed_roce_mode_to_flavor(qp->roce_mode));
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
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qp->incoming_rdma_read_en);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
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qp->incoming_rdma_write_en);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_ATOMIC_EN,
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qp->incoming_atomic_en);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
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qp->e2e_flow_control_en);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG, qp->use_srq);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN,
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qp->fmr_and_reserved_lkey);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
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qp->min_rnr_nak_timer);
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SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_XRC_FLAG,
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qed_rdma_is_xrc_qp(qp));
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p_ramrod = &p_ent->ramrod.roce_create_qp_resp;
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p_ramrod->flags = cpu_to_le32(flags);
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p_ramrod->max_ird = qp->max_rd_atomic_resp;
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p_ramrod->traffic_class = qp->traffic_class_tos;
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p_ramrod->hop_limit = qp->hop_limit_ttl;
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p_ramrod->irq_num_pages = qp->irq_num_pages;
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p_ramrod->p_key = cpu_to_le16(qp->pkey);
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p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
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p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp);
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p_ramrod->mtu = cpu_to_le16(qp->mtu);
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p_ramrod->initial_psn = cpu_to_le32(qp->rq_psn);
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p_ramrod->pd = cpu_to_le16(qp->pd);
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p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages);
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DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr);
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DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_phys_addr);
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qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
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p_ramrod->qp_handle_for_async.hi = qp->qp_handle_async.hi;
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p_ramrod->qp_handle_for_async.lo = qp->qp_handle_async.lo;
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p_ramrod->qp_handle_for_cqe.hi = qp->qp_handle.hi;
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p_ramrod->qp_handle_for_cqe.lo = qp->qp_handle.lo;
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p_ramrod->cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) |
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qp->rq_cq_id);
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p_ramrod->xrc_domain = cpu_to_le16(qp->xrcd_id);
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tc = qed_roce_get_qp_tc(p_hwfn, qp);
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regular_latency_queue = qed_get_cm_pq_idx_ofld_mtc(p_hwfn, tc);
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low_latency_queue = qed_get_cm_pq_idx_llt_mtc(p_hwfn, tc);
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DP_VERBOSE(p_hwfn, QED_MSG_SP,
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"qp icid %u pqs: regular_latency %u low_latency %u\n",
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qp->icid, regular_latency_queue - CM_TX_PQ_BASE,
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low_latency_queue - CM_TX_PQ_BASE);
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p_ramrod->regular_latency_phy_queue =
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cpu_to_le16(regular_latency_queue);
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p_ramrod->low_latency_phy_queue =
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cpu_to_le16(low_latency_queue);
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p_ramrod->dpi = cpu_to_le16(qp->dpi);
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qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
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qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
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p_ramrod->udp_src_port = cpu_to_le16(qp->udp_src_port);
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p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id);
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p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id);
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p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid);
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p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) +
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qp->stats_queue;
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rc = qed_spq_post(p_hwfn, p_ent, NULL);
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if (rc)
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goto err;
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qp->resp_offloaded = true;
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qp->cq_prod = 0;
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proto = p_hwfn->p_rdma_info->proto;
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qed_roce_set_real_cid(p_hwfn, qp->icid -
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qed_cxt_get_proto_cid_start(p_hwfn, proto));
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return rc;
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err:
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DP_NOTICE(p_hwfn, "create responder - failed, rc = %d\n", rc);
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dma_free_coherent(&p_hwfn->cdev->pdev->dev,
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qp->irq_num_pages * RDMA_RING_PAGE_SIZE,
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qp->irq, qp->irq_phys_addr);
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return rc;
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}
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static int qed_roce_sp_create_requester(struct qed_hwfn *p_hwfn,
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struct qed_rdma_qp *qp)
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{
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struct roce_create_qp_req_ramrod_data *p_ramrod;
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u16 regular_latency_queue, low_latency_queue;
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struct qed_sp_init_data init_data;
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struct qed_spq_entry *p_ent;
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enum protocol_type proto;
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u16 flags = 0;
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int rc;
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u8 tc;
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if (!qp->has_req)
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return 0;
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
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/* Allocate DMA-able memory for ORQ */
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qp->orq_num_pages = 1;
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qp->orq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
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RDMA_RING_PAGE_SIZE,
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&qp->orq_phys_addr, GFP_KERNEL);
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if (!qp->orq) {
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rc = -ENOMEM;
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DP_NOTICE(p_hwfn,
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"qed create requester failed: cannot allocate memory (orq). rc = %d\n",
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rc);
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return rc;
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}
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/* Get SPQ entry */
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memset(&init_data, 0, sizeof(init_data));
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init_data.cid = qp->icid + 1;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
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ROCE_RAMROD_CREATE_QP,
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PROTOCOLID_ROCE, &init_data);
|
if (rc)
|
goto err;
|
|
SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR,
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qed_roce_mode_to_flavor(qp->roce_mode));
|
|
SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN,
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qp->fmr_and_reserved_lkey);
|
|
SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP,
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qp->signal_all);
|
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SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT,
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qp->retry_cnt);
|
|
SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
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qp->rnr_retry_cnt);
|
|
SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_XRC_FLAG,
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qed_rdma_is_xrc_qp(qp));
|
|
p_ramrod = &p_ent->ramrod.roce_create_qp_req;
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p_ramrod->flags = cpu_to_le16(flags);
|
|
SET_FIELD(p_ramrod->flags2, ROCE_CREATE_QP_REQ_RAMROD_DATA_EDPM_MODE,
|
qp->edpm_mode);
|
|
p_ramrod->max_ord = qp->max_rd_atomic_req;
|
p_ramrod->traffic_class = qp->traffic_class_tos;
|
p_ramrod->hop_limit = qp->hop_limit_ttl;
|
p_ramrod->orq_num_pages = qp->orq_num_pages;
|
p_ramrod->p_key = cpu_to_le16(qp->pkey);
|
p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
|
p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp);
|
p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout);
|
p_ramrod->mtu = cpu_to_le16(qp->mtu);
|
p_ramrod->initial_psn = cpu_to_le32(qp->sq_psn);
|
p_ramrod->pd = cpu_to_le16(qp->pd);
|
p_ramrod->sq_num_pages = cpu_to_le16(qp->sq_num_pages);
|
DMA_REGPAIR_LE(p_ramrod->sq_pbl_addr, qp->sq_pbl_ptr);
|
DMA_REGPAIR_LE(p_ramrod->orq_pbl_addr, qp->orq_phys_addr);
|
qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
|
p_ramrod->qp_handle_for_async.hi = qp->qp_handle_async.hi;
|
p_ramrod->qp_handle_for_async.lo = qp->qp_handle_async.lo;
|
p_ramrod->qp_handle_for_cqe.hi = qp->qp_handle.hi;
|
p_ramrod->qp_handle_for_cqe.lo = qp->qp_handle.lo;
|
p_ramrod->cq_cid =
|
cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id);
|
|
tc = qed_roce_get_qp_tc(p_hwfn, qp);
|
regular_latency_queue = qed_get_cm_pq_idx_ofld_mtc(p_hwfn, tc);
|
low_latency_queue = qed_get_cm_pq_idx_llt_mtc(p_hwfn, tc);
|
DP_VERBOSE(p_hwfn, QED_MSG_SP,
|
"qp icid %u pqs: regular_latency %u low_latency %u\n",
|
qp->icid, regular_latency_queue - CM_TX_PQ_BASE,
|
low_latency_queue - CM_TX_PQ_BASE);
|
p_ramrod->regular_latency_phy_queue =
|
cpu_to_le16(regular_latency_queue);
|
p_ramrod->low_latency_phy_queue =
|
cpu_to_le16(low_latency_queue);
|
|
p_ramrod->dpi = cpu_to_le16(qp->dpi);
|
|
qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
|
qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
|
|
p_ramrod->udp_src_port = cpu_to_le16(qp->udp_src_port);
|
p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id);
|
p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) +
|
qp->stats_queue;
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
if (rc)
|
goto err;
|
|
qp->req_offloaded = true;
|
proto = p_hwfn->p_rdma_info->proto;
|
qed_roce_set_real_cid(p_hwfn,
|
qp->icid + 1 -
|
qed_cxt_get_proto_cid_start(p_hwfn, proto));
|
|
return rc;
|
|
err:
|
DP_NOTICE(p_hwfn, "Create requested - failed, rc = %d\n", rc);
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
qp->orq_num_pages * RDMA_RING_PAGE_SIZE,
|
qp->orq, qp->orq_phys_addr);
|
return rc;
|
}
|
|
static int qed_roce_sp_modify_responder(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp,
|
bool move_to_err, u32 modify_flags)
|
{
|
struct roce_modify_qp_resp_ramrod_data *p_ramrod;
|
struct qed_sp_init_data init_data;
|
struct qed_spq_entry *p_ent;
|
u16 flags = 0;
|
int rc;
|
|
if (!qp->has_resp)
|
return 0;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
|
|
if (move_to_err && !qp->resp_offloaded)
|
return 0;
|
|
/* Get SPQ entry */
|
memset(&init_data, 0, sizeof(init_data));
|
init_data.cid = qp->icid;
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
ROCE_EVENT_MODIFY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc) {
|
DP_NOTICE(p_hwfn, "rc = %d\n", rc);
|
return rc;
|
}
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MOVE_TO_ERR_FLG,
|
!!move_to_err);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
|
qp->incoming_rdma_read_en);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
|
qp->incoming_rdma_write_en);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_ATOMIC_EN,
|
qp->incoming_atomic_en);
|
|
SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
|
qp->e2e_flow_control_en);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_OPS_EN_FLG,
|
GET_FIELD(modify_flags,
|
QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_P_KEY_FLG,
|
GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_ADDRESS_VECTOR_FLG,
|
GET_FIELD(modify_flags,
|
QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MAX_IRD_FLG,
|
GET_FIELD(modify_flags,
|
QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER_FLG,
|
GET_FIELD(modify_flags,
|
QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER));
|
|
p_ramrod = &p_ent->ramrod.roce_modify_qp_resp;
|
p_ramrod->flags = cpu_to_le16(flags);
|
|
p_ramrod->fields = 0;
|
SET_FIELD(p_ramrod->fields,
|
ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
|
qp->min_rnr_nak_timer);
|
|
p_ramrod->max_ird = qp->max_rd_atomic_resp;
|
p_ramrod->traffic_class = qp->traffic_class_tos;
|
p_ramrod->hop_limit = qp->hop_limit_ttl;
|
p_ramrod->p_key = cpu_to_le16(qp->pkey);
|
p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
|
p_ramrod->mtu = cpu_to_le16(qp->mtu);
|
qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify responder, rc = %d\n", rc);
|
return rc;
|
}
|
|
static int qed_roce_sp_modify_requester(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp,
|
bool move_to_sqd,
|
bool move_to_err, u32 modify_flags)
|
{
|
struct roce_modify_qp_req_ramrod_data *p_ramrod;
|
struct qed_sp_init_data init_data;
|
struct qed_spq_entry *p_ent;
|
u16 flags = 0;
|
int rc;
|
|
if (!qp->has_req)
|
return 0;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
|
|
if (move_to_err && !(qp->req_offloaded))
|
return 0;
|
|
/* Get SPQ entry */
|
memset(&init_data, 0, sizeof(init_data));
|
init_data.cid = qp->icid + 1;
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
ROCE_EVENT_MODIFY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc) {
|
DP_NOTICE(p_hwfn, "rc = %d\n", rc);
|
return rc;
|
}
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_ERR_FLG,
|
!!move_to_err);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_SQD_FLG,
|
!!move_to_sqd);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_EN_SQD_ASYNC_NOTIFY,
|
qp->sqd_async);
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_P_KEY_FLG,
|
GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ADDRESS_VECTOR_FLG,
|
GET_FIELD(modify_flags,
|
QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MAX_ORD_FLG,
|
GET_FIELD(modify_flags,
|
QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT_FLG,
|
GET_FIELD(modify_flags,
|
QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT_FLG,
|
GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT));
|
|
SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ACK_TIMEOUT_FLG,
|
GET_FIELD(modify_flags,
|
QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT));
|
|
p_ramrod = &p_ent->ramrod.roce_modify_qp_req;
|
p_ramrod->flags = cpu_to_le16(flags);
|
|
p_ramrod->fields = 0;
|
SET_FIELD(p_ramrod->fields,
|
ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt);
|
SET_FIELD(p_ramrod->fields, ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
|
qp->rnr_retry_cnt);
|
|
p_ramrod->max_ord = qp->max_rd_atomic_req;
|
p_ramrod->traffic_class = qp->traffic_class_tos;
|
p_ramrod->hop_limit = qp->hop_limit_ttl;
|
p_ramrod->p_key = cpu_to_le16(qp->pkey);
|
p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
|
p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout);
|
p_ramrod->mtu = cpu_to_le16(qp->mtu);
|
qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify requester, rc = %d\n", rc);
|
return rc;
|
}
|
|
static int qed_roce_sp_destroy_qp_responder(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp,
|
u32 *cq_prod)
|
{
|
struct roce_destroy_qp_resp_output_params *p_ramrod_res;
|
struct roce_destroy_qp_resp_ramrod_data *p_ramrod;
|
struct qed_sp_init_data init_data;
|
struct qed_spq_entry *p_ent;
|
dma_addr_t ramrod_res_phys;
|
int rc;
|
|
if (!qp->has_resp) {
|
*cq_prod = 0;
|
return 0;
|
}
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
|
*cq_prod = qp->cq_prod;
|
|
if (!qp->resp_offloaded) {
|
/* If a responder was never offload, we need to free the cids
|
* allocated in create_qp as a FW async event will never arrive
|
*/
|
u32 cid;
|
|
cid = qp->icid -
|
qed_cxt_get_proto_cid_start(p_hwfn,
|
p_hwfn->p_rdma_info->proto);
|
qed_roce_free_cid_pair(p_hwfn, (u16)cid);
|
|
return 0;
|
}
|
|
/* Get SPQ entry */
|
memset(&init_data, 0, sizeof(init_data));
|
init_data.cid = qp->icid;
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
ROCE_RAMROD_DESTROY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc)
|
return rc;
|
|
p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp;
|
|
p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
sizeof(*p_ramrod_res),
|
&ramrod_res_phys, GFP_KERNEL);
|
|
if (!p_ramrod_res) {
|
rc = -ENOMEM;
|
DP_NOTICE(p_hwfn,
|
"qed destroy responder failed: cannot allocate memory (ramrod). rc = %d\n",
|
rc);
|
qed_sp_destroy_request(p_hwfn, p_ent);
|
return rc;
|
}
|
|
DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
if (rc)
|
goto err;
|
|
*cq_prod = le32_to_cpu(p_ramrod_res->cq_prod);
|
qp->cq_prod = *cq_prod;
|
|
/* Free IRQ - only if ramrod succeeded, in case FW is still using it */
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
qp->irq_num_pages * RDMA_RING_PAGE_SIZE,
|
qp->irq, qp->irq_phys_addr);
|
|
qp->resp_offloaded = false;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy responder, rc = %d\n", rc);
|
|
err:
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
sizeof(struct roce_destroy_qp_resp_output_params),
|
p_ramrod_res, ramrod_res_phys);
|
|
return rc;
|
}
|
|
static int qed_roce_sp_destroy_qp_requester(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp)
|
{
|
struct roce_destroy_qp_req_output_params *p_ramrod_res;
|
struct roce_destroy_qp_req_ramrod_data *p_ramrod;
|
struct qed_sp_init_data init_data;
|
struct qed_spq_entry *p_ent;
|
dma_addr_t ramrod_res_phys;
|
int rc = -ENOMEM;
|
|
if (!qp->has_req)
|
return 0;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
|
|
if (!qp->req_offloaded)
|
return 0;
|
|
p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
sizeof(*p_ramrod_res),
|
&ramrod_res_phys, GFP_KERNEL);
|
if (!p_ramrod_res) {
|
DP_NOTICE(p_hwfn,
|
"qed destroy requester failed: cannot allocate memory (ramrod)\n");
|
return rc;
|
}
|
|
/* Get SPQ entry */
|
memset(&init_data, 0, sizeof(init_data));
|
init_data.cid = qp->icid + 1;
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc)
|
goto err;
|
|
p_ramrod = &p_ent->ramrod.roce_destroy_qp_req;
|
DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
if (rc)
|
goto err;
|
|
|
/* Free ORQ - only if ramrod succeeded, in case FW is still using it */
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
qp->orq_num_pages * RDMA_RING_PAGE_SIZE,
|
qp->orq, qp->orq_phys_addr);
|
|
qp->req_offloaded = false;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy requester, rc = %d\n", rc);
|
|
err:
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res),
|
p_ramrod_res, ramrod_res_phys);
|
|
return rc;
|
}
|
|
int qed_roce_query_qp(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp,
|
struct qed_rdma_query_qp_out_params *out_params)
|
{
|
struct roce_query_qp_resp_output_params *p_resp_ramrod_res;
|
struct roce_query_qp_req_output_params *p_req_ramrod_res;
|
struct roce_query_qp_resp_ramrod_data *p_resp_ramrod;
|
struct roce_query_qp_req_ramrod_data *p_req_ramrod;
|
struct qed_sp_init_data init_data;
|
dma_addr_t resp_ramrod_res_phys;
|
dma_addr_t req_ramrod_res_phys;
|
struct qed_spq_entry *p_ent;
|
bool rq_err_state;
|
bool sq_err_state;
|
bool sq_draining;
|
int rc = -ENOMEM;
|
|
if ((!(qp->resp_offloaded)) && (!(qp->req_offloaded))) {
|
/* We can't send ramrod to the fw since this qp wasn't offloaded
|
* to the fw yet
|
*/
|
out_params->draining = false;
|
out_params->rq_psn = qp->rq_psn;
|
out_params->sq_psn = qp->sq_psn;
|
out_params->state = qp->cur_state;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "No QPs as no offload\n");
|
return 0;
|
}
|
|
if (!(qp->resp_offloaded)) {
|
DP_NOTICE(p_hwfn,
|
"The responder's qp should be offloaded before requester's\n");
|
return -EINVAL;
|
}
|
|
/* Send a query responder ramrod to FW to get RQ-PSN and state */
|
p_resp_ramrod_res =
|
dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
sizeof(*p_resp_ramrod_res),
|
&resp_ramrod_res_phys, GFP_KERNEL);
|
if (!p_resp_ramrod_res) {
|
DP_NOTICE(p_hwfn,
|
"qed query qp failed: cannot allocate memory (ramrod)\n");
|
return rc;
|
}
|
|
/* Get SPQ entry */
|
memset(&init_data, 0, sizeof(init_data));
|
init_data.cid = qp->icid;
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc)
|
goto err_resp;
|
|
p_resp_ramrod = &p_ent->ramrod.roce_query_qp_resp;
|
DMA_REGPAIR_LE(p_resp_ramrod->output_params_addr, resp_ramrod_res_phys);
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
if (rc)
|
goto err_resp;
|
|
out_params->rq_psn = le32_to_cpu(p_resp_ramrod_res->psn);
|
rq_err_state = GET_FIELD(le32_to_cpu(p_resp_ramrod_res->flags),
|
ROCE_QUERY_QP_RESP_OUTPUT_PARAMS_ERROR_FLG);
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res),
|
p_resp_ramrod_res, resp_ramrod_res_phys);
|
|
if (!(qp->req_offloaded)) {
|
/* Don't send query qp for the requester */
|
out_params->sq_psn = qp->sq_psn;
|
out_params->draining = false;
|
|
if (rq_err_state)
|
qp->cur_state = QED_ROCE_QP_STATE_ERR;
|
|
out_params->state = qp->cur_state;
|
|
return 0;
|
}
|
|
/* Send a query requester ramrod to FW to get SQ-PSN and state */
|
p_req_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
sizeof(*p_req_ramrod_res),
|
&req_ramrod_res_phys,
|
GFP_KERNEL);
|
if (!p_req_ramrod_res) {
|
rc = -ENOMEM;
|
DP_NOTICE(p_hwfn,
|
"qed query qp failed: cannot allocate memory (ramrod)\n");
|
return rc;
|
}
|
|
/* Get SPQ entry */
|
init_data.cid = qp->icid + 1;
|
rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
|
PROTOCOLID_ROCE, &init_data);
|
if (rc)
|
goto err_req;
|
|
p_req_ramrod = &p_ent->ramrod.roce_query_qp_req;
|
DMA_REGPAIR_LE(p_req_ramrod->output_params_addr, req_ramrod_res_phys);
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
if (rc)
|
goto err_req;
|
|
out_params->sq_psn = le32_to_cpu(p_req_ramrod_res->psn);
|
sq_err_state = GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags),
|
ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_ERR_FLG);
|
sq_draining =
|
GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags),
|
ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_SQ_DRAINING_FLG);
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res),
|
p_req_ramrod_res, req_ramrod_res_phys);
|
|
out_params->draining = false;
|
|
if (rq_err_state || sq_err_state)
|
qp->cur_state = QED_ROCE_QP_STATE_ERR;
|
else if (sq_draining)
|
out_params->draining = true;
|
out_params->state = qp->cur_state;
|
|
return 0;
|
|
err_req:
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res),
|
p_req_ramrod_res, req_ramrod_res_phys);
|
return rc;
|
err_resp:
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res),
|
p_resp_ramrod_res, resp_ramrod_res_phys);
|
return rc;
|
}
|
|
int qed_roce_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
|
{
|
u32 cq_prod;
|
int rc;
|
|
/* Destroys the specified QP */
|
if ((qp->cur_state != QED_ROCE_QP_STATE_RESET) &&
|
(qp->cur_state != QED_ROCE_QP_STATE_ERR) &&
|
(qp->cur_state != QED_ROCE_QP_STATE_INIT)) {
|
DP_NOTICE(p_hwfn,
|
"QP must be in error, reset or init state before destroying it\n");
|
return -EINVAL;
|
}
|
|
if (qp->cur_state != QED_ROCE_QP_STATE_RESET) {
|
rc = qed_roce_sp_destroy_qp_responder(p_hwfn, qp,
|
&cq_prod);
|
if (rc)
|
return rc;
|
|
/* Send destroy requester ramrod */
|
rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp);
|
if (rc)
|
return rc;
|
}
|
|
return 0;
|
}
|
|
int qed_roce_modify_qp(struct qed_hwfn *p_hwfn,
|
struct qed_rdma_qp *qp,
|
enum qed_roce_qp_state prev_state,
|
struct qed_rdma_modify_qp_in_params *params)
|
{
|
int rc = 0;
|
|
/* Perform additional operations according to the current state and the
|
* next state
|
*/
|
if (((prev_state == QED_ROCE_QP_STATE_INIT) ||
|
(prev_state == QED_ROCE_QP_STATE_RESET)) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_RTR)) {
|
/* Init->RTR or Reset->RTR */
|
rc = qed_roce_sp_create_responder(p_hwfn, qp);
|
return rc;
|
} else if ((prev_state == QED_ROCE_QP_STATE_RTR) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
|
/* RTR-> RTS */
|
rc = qed_roce_sp_create_requester(p_hwfn, qp);
|
if (rc)
|
return rc;
|
|
/* Send modify responder ramrod */
|
rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
|
params->modify_flags);
|
return rc;
|
} else if ((prev_state == QED_ROCE_QP_STATE_RTS) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
|
/* RTS->RTS */
|
rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
|
params->modify_flags);
|
if (rc)
|
return rc;
|
|
rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
|
params->modify_flags);
|
return rc;
|
} else if ((prev_state == QED_ROCE_QP_STATE_RTS) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_SQD)) {
|
/* RTS->SQD */
|
rc = qed_roce_sp_modify_requester(p_hwfn, qp, true, false,
|
params->modify_flags);
|
return rc;
|
} else if ((prev_state == QED_ROCE_QP_STATE_SQD) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_SQD)) {
|
/* SQD->SQD */
|
rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
|
params->modify_flags);
|
if (rc)
|
return rc;
|
|
rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
|
params->modify_flags);
|
return rc;
|
} else if ((prev_state == QED_ROCE_QP_STATE_SQD) &&
|
(qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
|
/* SQD->RTS */
|
rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
|
params->modify_flags);
|
if (rc)
|
return rc;
|
|
rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
|
params->modify_flags);
|
|
return rc;
|
} else if (qp->cur_state == QED_ROCE_QP_STATE_ERR) {
|
/* ->ERR */
|
rc = qed_roce_sp_modify_responder(p_hwfn, qp, true,
|
params->modify_flags);
|
if (rc)
|
return rc;
|
|
rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, true,
|
params->modify_flags);
|
return rc;
|
} else if (qp->cur_state == QED_ROCE_QP_STATE_RESET) {
|
/* Any state -> RESET */
|
u32 cq_prod;
|
|
/* Send destroy responder ramrod */
|
rc = qed_roce_sp_destroy_qp_responder(p_hwfn,
|
qp,
|
&cq_prod);
|
|
if (rc)
|
return rc;
|
|
qp->cq_prod = cq_prod;
|
|
rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp);
|
} else {
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n");
|
}
|
|
return rc;
|
}
|
|
static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid)
|
{
|
struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
|
u32 start_cid, cid, xcid;
|
|
/* an even icid belongs to a responder while an odd icid belongs to a
|
* requester. The 'cid' received as an input can be either. We calculate
|
* the "partner" icid and call it xcid. Only if both are free then the
|
* "cid" map can be cleared.
|
*/
|
start_cid = qed_cxt_get_proto_cid_start(p_hwfn, p_rdma_info->proto);
|
cid = icid - start_cid;
|
xcid = cid ^ 1;
|
|
spin_lock_bh(&p_rdma_info->lock);
|
|
qed_bmap_release_id(p_hwfn, &p_rdma_info->real_cid_map, cid);
|
if (qed_bmap_test_id(p_hwfn, &p_rdma_info->real_cid_map, xcid) == 0) {
|
qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, cid);
|
qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, xcid);
|
}
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
|
}
|
|
void qed_roce_dpm_dcbx(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
|
{
|
u8 val;
|
|
/* if any QPs are already active, we want to disable DPM, since their
|
* context information contains information from before the latest DCBx
|
* update. Otherwise enable it.
|
*/
|
val = qed_rdma_allocated_qps(p_hwfn) ? true : false;
|
p_hwfn->dcbx_no_edpm = (u8)val;
|
|
qed_rdma_dpm_conf(p_hwfn, p_ptt);
|
}
|
|
int qed_roce_setup(struct qed_hwfn *p_hwfn)
|
{
|
return qed_spq_register_async_cb(p_hwfn, PROTOCOLID_ROCE,
|
qed_roce_async_event);
|
}
|
|
int qed_roce_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
|
{
|
u32 ll2_ethertype_en;
|
|
qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
|
|
p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE;
|
|
ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
|
qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
|
(ll2_ethertype_en | 0x01));
|
|
if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) {
|
DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n");
|
return -EINVAL;
|
}
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n");
|
return 0;
|
}
|
