p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/9p: Remove ib_get_dma_mr calls 

The pd now has a local_dma_lkey member which completely replaces
ib_get_dma_mr, use it instead.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jason Gunthorpe 2015-07-30 17:22:25 -06:00 committed by Doug Ledford
parent 5a783956c2
commit 2f31fa881f
1 changed files with 2 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
net/9p/trans_rdma.c
View File

@ -94,8 +94,6 @@ struct p9_trans_rdma {
struct ib_pd *pd;
struct ib_qp *qp;
struct ib_cq *cq;
struct ib_mr *dma_mr;
u32 lkey;
long timeout;
int sq_depth;
struct semaphore sq_sem;
@ -382,9 +380,6 @@ static void rdma_destroy_trans(struct p9_trans_rdma *rdma)
if (!rdma)
return;
if (rdma->dma_mr && !IS_ERR(rdma->dma_mr))
ib_dereg_mr(rdma->dma_mr);
if (rdma->qp && !IS_ERR(rdma->qp))
ib_destroy_qp(rdma->qp);
@ -415,7 +410,7 @@ post_recv(struct p9_client *client, struct p9_rdma_context *c)
sge.addr = c->busa;
sge.length = client->msize;
sge.lkey = rdma->lkey;
sge.lkey = rdma->pd->local_dma_lkey;
wr.next = NULL;
c->wc_op = IB_WC_RECV;
@ -506,7 +501,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
sge.addr = c->busa;
sge.length = c->req->tc->size;
sge.lkey = rdma->lkey;
sge.lkey = rdma->pd->local_dma_lkey;
wr.next = NULL;
c->wc_op = IB_WC_SEND;
@ -647,7 +642,6 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
struct p9_trans_rdma *rdma;
struct rdma_conn_param conn_param;
struct ib_qp_init_attr qp_attr;
struct ib_device_attr devattr;
struct ib_cq_init_attr cq_attr = {};
/* Parse the transport specific mount options */
@ -700,11 +694,6 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
if (err || (rdma->state != P9_RDMA_ROUTE_RESOLVED))
goto error;
/* Query the device attributes */
err = ib_query_device(rdma->cm_id->device, &devattr);
if (err)
goto error;
/* Create the Completion Queue */
cq_attr.cqe = opts.sq_depth + opts.rq_depth + 1;
rdma->cq = ib_create_cq(rdma->cm_id->device, cq_comp_handler,
@ -719,17 +708,6 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
if (IS_ERR(rdma->pd))
goto error;
/* Cache the DMA lkey in the transport */
rdma->dma_mr = NULL;
if (devattr.device_cap_flags & IB_DEVICE_LOCAL_DMA_LKEY)
rdma->lkey = rdma->cm_id->device->local_dma_lkey;
else {
rdma->dma_mr = ib_get_dma_mr(rdma->pd, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(rdma->dma_mr))
goto error;
rdma->lkey = rdma->dma_mr->lkey;
}
/* Create the Queue Pair */
memset(&qp_attr, 0, sizeof qp_attr);
qp_attr.event_handler = qp_event_handler;