RDMA/mana_ib: Create and destroy RC QP

Implement HW requests to create and destroy an RC QP.
An RC QP may have 5 queues.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1716366242-558-2-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 2a411357640e6c8bdcfa318598083d656742597f..6bd60729ea32d1955a70dbd2e5bb40806021a922 100644 (file)
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -888,3 +888,62 @@ int mana_ib_gd_destroy_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq)
 
        return 0;
 }
+
+int mana_ib_gd_create_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
+                           struct ib_qp_init_attr *attr, u32 doorbell, u64 flags)
+{
+       struct mana_ib_cq *send_cq = container_of(qp->ibqp.send_cq, struct mana_ib_cq, ibcq);
+       struct mana_ib_cq *recv_cq = container_of(qp->ibqp.recv_cq, struct mana_ib_cq, ibcq);
+       struct mana_ib_pd *pd = container_of(qp->ibqp.pd, struct mana_ib_pd, ibpd);
+       struct gdma_context *gc = mdev_to_gc(mdev);
+       struct mana_rnic_create_qp_resp resp = {};
+       struct mana_rnic_create_qp_req req = {};
+       int err, i;
+
+       mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_RC_QP, sizeof(req), sizeof(resp));
+       req.hdr.dev_id = gc->mana_ib.dev_id;
+       req.adapter = mdev->adapter_handle;
+       req.pd_handle = pd->pd_handle;
+       req.send_cq_handle = send_cq->cq_handle;
+       req.recv_cq_handle = recv_cq->cq_handle;
+       for (i = 0; i < MANA_RC_QUEUE_TYPE_MAX; i++)
+               req.dma_region[i] = qp->rc_qp.queues[i].gdma_region;
+       req.doorbell_page = doorbell;
+       req.max_send_wr = attr->cap.max_send_wr;
+       req.max_recv_wr = attr->cap.max_recv_wr;
+       req.max_send_sge = attr->cap.max_send_sge;
+       req.max_recv_sge = attr->cap.max_recv_sge;
+       req.flags = flags;
+
+       err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
+       if (err) {
+               ibdev_err(&mdev->ib_dev, "Failed to create rc qp err %d", err);
+               return err;
+       }
+       qp->qp_handle = resp.rc_qp_handle;
+       for (i = 0; i < MANA_RC_QUEUE_TYPE_MAX; i++) {
+               qp->rc_qp.queues[i].id = resp.queue_ids[i];
+               /* The GDMA regions are now owned by the RNIC QP handle */
+               qp->rc_qp.queues[i].gdma_region = GDMA_INVALID_DMA_REGION;
+       }
+       return 0;
+}
+
+int mana_ib_gd_destroy_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp)
+{
+       struct mana_rnic_destroy_rc_qp_resp resp = {0};
+       struct mana_rnic_destroy_rc_qp_req req = {0};
+       struct gdma_context *gc = mdev_to_gc(mdev);
+       int err;
+
+       mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_RC_QP, sizeof(req), sizeof(resp));
+       req.hdr.dev_id = gc->mana_ib.dev_id;
+       req.adapter = mdev->adapter_handle;
+       req.rc_qp_handle = qp->qp_handle;
+       err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
+       if (err) {
+               ibdev_err(&mdev->ib_dev, "Failed to destroy rc qp err %d", err);
+               return err;
+       }
+       return 0;
+}

diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 68c3b4f0faa44c88d2d2c8838e75f51586c4d051..a3e229c83c5ce3128968ddba2578a89610435df0 100644 (file)
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -95,11 +95,27 @@ struct mana_ib_cq {
        mana_handle_t  cq_handle;
 };
 
+enum mana_rc_queue_type {
+       MANA_RC_SEND_QUEUE_REQUESTER = 0,
+       MANA_RC_SEND_QUEUE_RESPONDER,
+       MANA_RC_SEND_QUEUE_FMR,
+       MANA_RC_RECV_QUEUE_REQUESTER,
+       MANA_RC_RECV_QUEUE_RESPONDER,
+       MANA_RC_QUEUE_TYPE_MAX,
+};
+
+struct mana_ib_rc_qp {
+       struct mana_ib_queue queues[MANA_RC_QUEUE_TYPE_MAX];
+};
+
 struct mana_ib_qp {
        struct ib_qp ibqp;
 
        mana_handle_t qp_handle;
-       struct mana_ib_queue raw_sq;
+       union {
+               struct mana_ib_queue raw_sq;
+               struct mana_ib_rc_qp rc_qp;
+       };
 
        /* The port on the IB device, starting with 1 */
        u32 port;
@@ -122,6 +138,8 @@ enum mana_ib_command_code {
        MANA_IB_CONFIG_MAC_ADDR = 0x30005,
        MANA_IB_CREATE_CQ       = 0x30008,
        MANA_IB_DESTROY_CQ      = 0x30009,
+       MANA_IB_CREATE_RC_QP    = 0x3000a,
+       MANA_IB_DESTROY_RC_QP   = 0x3000b,
 };
 
 struct mana_ib_query_adapter_caps_req {
@@ -230,6 +248,40 @@ struct mana_rnic_destroy_cq_resp {
        struct gdma_resp_hdr hdr;
 }; /* HW Data */
 
+struct mana_rnic_create_qp_req {
+       struct gdma_req_hdr hdr;
+       mana_handle_t adapter;
+       mana_handle_t pd_handle;
+       mana_handle_t send_cq_handle;
+       mana_handle_t recv_cq_handle;
+       u64 dma_region[MANA_RC_QUEUE_TYPE_MAX];
+       u64 deprecated[2];
+       u64 flags;
+       u32 doorbell_page;
+       u32 max_send_wr;
+       u32 max_recv_wr;
+       u32 max_send_sge;
+       u32 max_recv_sge;
+       u32 reserved;
+}; /* HW Data */
+
+struct mana_rnic_create_qp_resp {
+       struct gdma_resp_hdr hdr;
+       mana_handle_t rc_qp_handle;
+       u32 queue_ids[MANA_RC_QUEUE_TYPE_MAX];
+       u32 reserved;
+}; /* HW Data*/
+
+struct mana_rnic_destroy_rc_qp_req {
+       struct gdma_req_hdr hdr;
+       mana_handle_t adapter;
+       mana_handle_t rc_qp_handle;
+}; /* HW Data */
+
+struct mana_rnic_destroy_rc_qp_resp {
+       struct gdma_resp_hdr hdr;
+}; /* HW Data */
+
 static inline struct gdma_context *mdev_to_gc(struct mana_ib_dev *mdev)
 {
        return mdev->gdma_dev->gdma_context;
@@ -354,4 +406,8 @@ int mana_ib_gd_config_mac(struct mana_ib_dev *mdev, enum mana_ib_addr_op op, u8
 int mana_ib_gd_create_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq, u32 doorbell);
 
 int mana_ib_gd_destroy_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq);
+
+int mana_ib_gd_create_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
+                           struct ib_qp_init_attr *attr, u32 doorbell, u64 flags);
+int mana_ib_gd_destroy_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp);
 #endif