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[rdma-next,05/13] RDMA/mana_ib: Create and destroy UD/GSI QP

Message ID 1737394039-28772-6-git-send-email-kotaranov@linux.microsoft.com (mailing list archive)
State New
Headers show
Series RDMA/mana_ib: Enable CM for mana_ib | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang fail Errors and warnings before: 17 this patch: 17
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 10 this patch: 10
netdev/checkpatch warning WARNING: line length of 81 exceeds 80 columns WARNING: line length of 82 exceeds 80 columns WARNING: line length of 83 exceeds 80 columns WARNING: line length of 88 exceeds 80 columns WARNING: line length of 89 exceeds 80 columns WARNING: line length of 93 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Konstantin Taranov Jan. 20, 2025, 5:27 p.m. UTC 
From: Konstantin Taranov <kotaranov@microsoft.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@microsoft.com>
Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com>
---
 drivers/infiniband/hw/mana/main.c    | 58 ++++++++++++++++++++++++++++
 drivers/infiniband/hw/mana/mana_ib.h | 49 +++++++++++++++++++++++
 2 files changed, 107 insertions(+)
diff mbox series

Patch

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