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Message-Id: <1737394039-28772-6-git-send-email-kotaranov@linux.microsoft.com>
Date: Mon, 20 Jan 2025 09:27:11 -0800
From: Konstantin Taranov <kotaranov@...ux.microsoft.com>
To: kotaranov@...rosoft.com,
shirazsaleem@...rosoft.com,
pabeni@...hat.com,
haiyangz@...rosoft.com,
kys@...rosoft.com,
edumazet@...gle.com,
kuba@...nel.org,
davem@...emloft.net,
decui@...rosoft.com,
wei.liu@...nel.org,
sharmaajay@...rosoft.com,
longli@...rosoft.com,
jgg@...pe.ca,
leon@...nel.org
Cc: linux-rdma@...r.kernel.org,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
linux-hyperv@...r.kernel.org
Subject: [PATCH rdma-next 05/13] RDMA/mana_ib: Create and destroy UD/GSI QP
From: Konstantin Taranov <kotaranov@...rosoft.com>
Implement HW requests to create and destroy UD/GSI QPs.
An UD/GSI QP has send and receive queues.
Signed-off-by: Konstantin Taranov <kotaranov@...rosoft.com>
Reviewed-by: Shiraz Saleem <shirazsaleem@...rosoft.com>
---
drivers/infiniband/hw/mana/main.c | 58 ++++++++++++++++++++++++++++
drivers/infiniband/hw/mana/mana_ib.h | 49 +++++++++++++++++++++++
2 files changed, 107 insertions(+)
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index f2f6bb3..b0c55cb 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -1013,3 +1013,61 @@ int mana_ib_gd_destroy_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp)
}
return 0;
}
+
+int mana_ib_gd_create_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
+ struct ib_qp_init_attr *attr, u32 doorbell, u32 type)
+{
+ 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_udqp_resp resp = {};
+ struct mana_rnic_create_udqp_req req = {};
+ int err, i;
+
+ mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_UD_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_UD_QUEUE_TYPE_MAX; i++)
+ req.dma_region[i] = qp->ud_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.qp_type = type;
+ err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
+ if (err) {
+ ibdev_err(&mdev->ib_dev, "Failed to create ud qp err %d", err);
+ return err;
+ }
+ qp->qp_handle = resp.qp_handle;
+ for (i = 0; i < MANA_UD_QUEUE_TYPE_MAX; i++) {
+ qp->ud_qp.queues[i].id = resp.queue_ids[i];
+ /* The GDMA regions are now owned by the RNIC QP handle */
+ qp->ud_qp.queues[i].gdma_region = GDMA_INVALID_DMA_REGION;
+ }
+ return 0;
+}
+
+int mana_ib_gd_destroy_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp)
+{
+ struct mana_rnic_destroy_udqp_resp resp = {0};
+ struct mana_rnic_destroy_udqp_req req = {0};
+ struct gdma_context *gc = mdev_to_gc(mdev);
+ int err;
+
+ mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_UD_QP, sizeof(req), sizeof(resp));
+ req.hdr.dev_id = gc->mana_ib.dev_id;
+ req.adapter = mdev->adapter_handle;
+ req.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 ud 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 79ebd95..5e470f1 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -115,6 +115,17 @@ struct mana_ib_rc_qp {
struct mana_ib_queue queues[MANA_RC_QUEUE_TYPE_MAX];
};
+enum mana_ud_queue_type {
+ MANA_UD_SEND_QUEUE = 0,
+ MANA_UD_RECV_QUEUE,
+ MANA_UD_QUEUE_TYPE_MAX,
+};
+
+struct mana_ib_ud_qp {
+ struct mana_ib_queue queues[MANA_UD_QUEUE_TYPE_MAX];
+ u32 sq_psn;
+};
+
struct mana_ib_qp {
struct ib_qp ibqp;
@@ -122,6 +133,7 @@ struct mana_ib_qp {
union {
struct mana_ib_queue raw_sq;
struct mana_ib_rc_qp rc_qp;
+ struct mana_ib_ud_qp ud_qp;
};
/* The port on the IB device, starting with 1 */
@@ -146,6 +158,8 @@ enum mana_ib_command_code {
MANA_IB_DESTROY_ADAPTER = 0x30003,
MANA_IB_CONFIG_IP_ADDR = 0x30004,
MANA_IB_CONFIG_MAC_ADDR = 0x30005,
+ MANA_IB_CREATE_UD_QP = 0x30006,
+ MANA_IB_DESTROY_UD_QP = 0x30007,
MANA_IB_CREATE_CQ = 0x30008,
MANA_IB_DESTROY_CQ = 0x30009,
MANA_IB_CREATE_RC_QP = 0x3000a,
@@ -297,6 +311,37 @@ struct mana_rnic_destroy_rc_qp_resp {
struct gdma_resp_hdr hdr;
}; /* HW Data */
+struct mana_rnic_create_udqp_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_UD_QUEUE_TYPE_MAX];
+ u32 qp_type;
+ u32 doorbell_page;
+ u32 max_send_wr;
+ u32 max_recv_wr;
+ u32 max_send_sge;
+ u32 max_recv_sge;
+}; /* HW Data */
+
+struct mana_rnic_create_udqp_resp {
+ struct gdma_resp_hdr hdr;
+ mana_handle_t qp_handle;
+ u32 queue_ids[MANA_UD_QUEUE_TYPE_MAX];
+}; /* HW Data*/
+
+struct mana_rnic_destroy_udqp_req {
+ struct gdma_req_hdr hdr;
+ mana_handle_t adapter;
+ mana_handle_t qp_handle;
+}; /* HW Data */
+
+struct mana_rnic_destroy_udqp_resp {
+ struct gdma_resp_hdr hdr;
+}; /* HW Data */
+
struct mana_ib_ah_attr {
u8 src_addr[16];
u8 dest_addr[16];
@@ -483,4 +528,8 @@ 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);
+
+int mana_ib_gd_create_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
+ struct ib_qp_init_attr *attr, u32 doorbell, u32 type);
+int mana_ib_gd_destroy_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp);
#endif
--
2.43.0
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