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hw/rdma: Add support for Query QP verb to pvrdma device 

This IB verb is needed by some applications - implement it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
This commit is contained in:
Yuval Shaia 2018-03-20 21:00:23 +02:00 committed by Marcel Apfelbaum
parent c99f217431
commit 79cfdca7aa
1 changed files with 23 additions and 1 deletions
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24
hw/rdma/vmw/pvrdma_cmd.c
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@ -515,6 +515,28 @@ static int modify_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
return rsp->hdr.err;
}
static int query_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
union pvrdma_cmd_resp *rsp)
{
struct pvrdma_cmd_query_qp *cmd = &req->query_qp;
struct pvrdma_cmd_query_qp_resp *resp = &rsp->query_qp_resp;
struct ibv_qp_init_attr init_attr;
pr_dbg("qp_handle=%d\n", cmd->qp_handle);
memset(rsp, 0, sizeof(*rsp));
rsp->hdr.response = cmd->hdr.response;
rsp->hdr.ack = PVRDMA_CMD_QUERY_QP_RESP;
rsp->hdr.err = rdma_rm_query_qp(&dev->rdma_dev_res, &dev->backend_dev,
cmd->qp_handle,
(struct ibv_qp_attr *)&resp->attrs, -1,
&init_attr);
pr_dbg("ret=%d\n", rsp->hdr.err);
return rsp->hdr.err;
}
static int destroy_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
union pvrdma_cmd_resp *rsp)
{
@ -636,7 +658,7 @@ static struct cmd_handler cmd_handlers[] = {
{PVRDMA_CMD_DESTROY_CQ, destroy_cq},
{PVRDMA_CMD_CREATE_QP, create_qp},
{PVRDMA_CMD_MODIFY_QP, modify_qp},
{PVRDMA_CMD_QUERY_QP, NULL},
{PVRDMA_CMD_QUERY_QP, query_qp},
{PVRDMA_CMD_DESTROY_QP, destroy_qp},
{PVRDMA_CMD_CREATE_UC, create_uc},
{PVRDMA_CMD_DESTROY_UC, destroy_uc},