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RDMA/mana_ib: Create and destroy RC QP

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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>
This commit is contained in:
Konstantin Taranov
2024-05-22 01:24:00 -07:00
committed by Leon Romanovsky
parent 38c02d813a
commit 53657a0419
2 changed files with 116 additions and 1 deletions
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59
drivers/infiniband/hw/mana/main.c
View File

@@ -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;
}

58
drivers/infiniband/hw/mana/mana_ib.h
View File

@@ -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