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Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_roce.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_roce.c1143
1 files changed, 1143 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
new file mode 100644
index 000000000..134ecfca9
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -0,0 +1,1143 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 QLogic Corporation
+ * Copyright (c) 2019-2020 Marvell International Ltd.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/if_vlan.h>
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dcbx.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_init_ops.h"
+#include "qed_int.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+#include <linux/qed/qed_rdma_if.h>
+#include "qed_rdma.h"
+#include "qed_roce.h"
+#include "qed_sp.h"
+
+static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid);
+
+static int qed_roce_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code,
+ __le16 echo, union event_ring_data *data,
+ u8 fw_return_code)
+{
+ struct qed_rdma_events events = p_hwfn->p_rdma_info->events;
+ union rdma_eqe_data *rdata = &data->rdma_data;
+
+ if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) {
+ u16 icid = (u16)le32_to_cpu(rdata->rdma_destroy_qp_data.cid);
+
+ /* icid release in this async event can occur only if the icid
+ * was offloaded to the FW. In case it wasn't offloaded this is
+ * handled in qed_roce_sp_destroy_qp.
+ */
+ qed_roce_free_real_icid(p_hwfn, icid);
+ } else if (fw_event_code == ROCE_ASYNC_EVENT_SRQ_EMPTY ||
+ fw_event_code == ROCE_ASYNC_EVENT_SRQ_LIMIT) {
+ u16 srq_id = (u16)le32_to_cpu(rdata->async_handle.lo);
+
+ events.affiliated_event(events.context, fw_event_code,
+ &srq_id);
+ } else {
+ events.affiliated_event(events.context, fw_event_code,
+ (void *)&rdata->async_handle);
+ }
+
+ return 0;
+}
+
+void qed_roce_stop(struct qed_hwfn *p_hwfn)
+{
+ struct qed_bmap *rcid_map = &p_hwfn->p_rdma_info->real_cid_map;
+ int wait_count = 0;
+
+ /* when destroying a_RoCE QP the control is returned to the user after
+ * the synchronous part. The asynchronous part may take a little longer.
+ * We delay for a short while if an async destroy QP is still expected.
+ * Beyond the added delay we clear the bitmap anyway.
+ */
+ while (!bitmap_empty(rcid_map->bitmap, rcid_map->max_count)) {
+ /* If the HW device is during recovery, all resources are
+ * immediately reset without receiving a per-cid indication
+ * from HW. In this case we don't expect the cid bitmap to be
+ * cleared.
+ */
+ if (p_hwfn->cdev->recov_in_prog)
+ return;
+
+ msleep(100);
+ if (wait_count++ > 20) {
+ DP_NOTICE(p_hwfn, "cid bitmap wait timed out\n");
+ break;
+ }
+ }
+}
+
+static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid,
+ __le32 *dst_gid)
+{
+ u32 i;
+
+ if (qp->roce_mode == ROCE_V2_IPV4) {
+ /* The IPv4 addresses shall be aligned to the highest word.
+ * The lower words must be zero.
+ */
+ memset(src_gid, 0, sizeof(union qed_gid));
+ memset(dst_gid, 0, sizeof(union qed_gid));
+ src_gid[3] = cpu_to_le32(qp->sgid.ipv4_addr);
+ dst_gid[3] = cpu_to_le32(qp->dgid.ipv4_addr);
+ } else {
+ /* GIDs and IPv6 addresses coincide in location and size */
+ for (i = 0; i < ARRAY_SIZE(qp->sgid.dwords); i++) {
+ src_gid[i] = cpu_to_le32(qp->sgid.dwords[i]);
+ dst_gid[i] = cpu_to_le32(qp->dgid.dwords[i]);
+ }
+ }
+}
+
+static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode)
+{
+ switch (roce_mode) {
+ case ROCE_V1:
+ return PLAIN_ROCE;
+ case ROCE_V2_IPV4:
+ return RROCE_IPV4;
+ case ROCE_V2_IPV6:
+ return RROCE_IPV6;
+ default:
+ return MAX_ROCE_FLAVOR;
+ }
+}
+
+static void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid)
+{
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid + 1);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+int qed_roce_alloc_cid(struct qed_hwfn *p_hwfn, u16 *cid)
+{
+ struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
+ u32 responder_icid;
+ u32 requester_icid;
+ int rc;
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
+ &responder_icid);
+ if (rc) {
+ spin_unlock_bh(&p_rdma_info->lock);
+ return rc;
+ }
+
+ rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
+ &requester_icid);
+
+ spin_unlock_bh(&p_rdma_info->lock);
+ if (rc)
+ goto err;
+
+ /* the two icid's should be adjacent */
+ if ((requester_icid - responder_icid) != 1) {
+ DP_NOTICE(p_hwfn, "Failed to allocate two adjacent qp's'\n");
+ rc = -EINVAL;
+ goto err;
+ }
+
+ responder_icid += qed_cxt_get_proto_cid_start(p_hwfn,
+ p_rdma_info->proto);
+ requester_icid += qed_cxt_get_proto_cid_start(p_hwfn,
+ p_rdma_info->proto);
+
+ /* If these icids require a new ILT line allocate DMA-able context for
+ * an ILT page
+ */
+ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, responder_icid);
+ if (rc)
+ goto err;
+
+ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, requester_icid);
+ if (rc)
+ goto err;
+
+ *cid = (u16)responder_icid;
+ return rc;
+
+err:
+ spin_lock_bh(&p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, responder_icid);
+ qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, requester_icid);
+
+ spin_unlock_bh(&p_rdma_info->lock);
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
+ "Allocate CID - failed, rc = %d\n", rc);
+ return rc;
+}
+
+static void qed_roce_set_real_cid(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, cid);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+static u8 qed_roce_get_qp_tc(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
+{
+ u8 pri, tc = 0;
+
+ if (qp->vlan_id) {
+ pri = (qp->vlan_id & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+ tc = qed_dcbx_get_priority_tc(p_hwfn, pri);
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_SP,
+ "qp icid %u tc: %u (vlan priority %s)\n",
+ qp->icid, tc, qp->vlan_id ? "enabled" : "disabled");
+
+ return tc;
+}
+
+static int qed_roce_sp_create_responder(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_qp *qp)
+{
+ struct roce_create_qp_resp_ramrod_data *p_ramrod;
+ u16 regular_latency_queue, low_latency_queue;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ enum protocol_type proto;
+ u32 flags = 0;
+ int rc;
+ u8 tc;
+
+ if (!qp->has_resp)
+ return 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
+
+ /* Allocate DMA-able memory for IRQ */
+ qp->irq_num_pages = 1;
+ qp->irq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ RDMA_RING_PAGE_SIZE,
+ &qp->irq_phys_addr, GFP_KERNEL);
+ if (!qp->irq) {
+ rc = -ENOMEM;
+ DP_NOTICE(p_hwfn,
+ "qed create responder failed: cannot allocate memory (irq). rc = %d\n",
+ rc);
+ 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_CREATE_QP,
+ PROTOCOLID_ROCE, &init_data);
+ if (rc)
+ goto err;
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR,
+ qed_roce_mode_to_flavor(qp->roce_mode));
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
+ qp->incoming_rdma_read_en);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
+ qp->incoming_rdma_write_en);
+
+ SET_FIELD(flags, ROCE_CREATE_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_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG, qp->use_srq);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN,
+ qp->fmr_and_reserved_lkey);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
+ qp->min_rnr_nak_timer);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_XRC_FLAG,
+ qed_rdma_is_xrc_qp(qp));
+
+ p_ramrod = &p_ent->ramrod.roce_create_qp_resp;
+ p_ramrod->flags = cpu_to_le32(flags);
+ 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->irq_num_pages = qp->irq_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->mtu = cpu_to_le16(qp->mtu);
+ p_ramrod->initial_psn = cpu_to_le32(qp->rq_psn);
+ p_ramrod->pd = cpu_to_le16(qp->pd);
+ p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages);
+ DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr);
+ DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_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->rq_cq_id);
+ p_ramrod->xrc_domain = cpu_to_le16(qp->xrcd_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->srq_id.srq_idx = cpu_to_le16(qp->srq_id);
+ p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid);
+
+ 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->resp_offloaded = true;
+ qp->cq_prod = 0;
+
+ proto = p_hwfn->p_rdma_info->proto;
+ qed_roce_set_real_cid(p_hwfn, qp->icid -
+ qed_cxt_get_proto_cid_start(p_hwfn, proto));
+
+ return rc;
+
+err:
+ DP_NOTICE(p_hwfn, "create responder - failed, rc = %d\n", rc);
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ qp->irq_num_pages * RDMA_RING_PAGE_SIZE,
+ qp->irq, qp->irq_phys_addr);
+
+ return rc;
+}
+
+static int qed_roce_sp_create_requester(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_qp *qp)
+{
+ struct roce_create_qp_req_ramrod_data *p_ramrod;
+ u16 regular_latency_queue, low_latency_queue;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ enum protocol_type proto;
+ u16 flags = 0;
+ int rc;
+ u8 tc;
+
+ if (!qp->has_req)
+ return 0;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
+
+ /* Allocate DMA-able memory for ORQ */
+ qp->orq_num_pages = 1;
+ qp->orq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ RDMA_RING_PAGE_SIZE,
+ &qp->orq_phys_addr, GFP_KERNEL);
+ if (!qp->orq) {
+ rc = -ENOMEM;
+ DP_NOTICE(p_hwfn,
+ "qed create requester failed: cannot allocate memory (orq). rc = %d\n",
+ rc);
+ 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_CREATE_QP,
+ PROTOCOLID_ROCE, &init_data);
+ if (rc)
+ goto err;
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR,
+ qed_roce_mode_to_flavor(qp->roce_mode));
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN,
+ qp->fmr_and_reserved_lkey);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP,
+ qp->signal_all);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT,
+ qp->retry_cnt);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
+ qp->rnr_retry_cnt);
+
+ SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_XRC_FLAG,
+ qed_rdma_is_xrc_qp(qp));
+
+ p_ramrod = &p_ent->ramrod.roce_create_qp_req;
+ 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;
+}