diff options
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_transport.c')
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 110 |
1 files changed, 7 insertions, 103 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index fc8f14c..a9d9cb1 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -272,85 +272,6 @@ static void svc_rdma_destroy_ctxts(struct svcxprt_rdma *xprt) } } -static struct svc_rdma_req_map *alloc_req_map(gfp_t flags) -{ - struct svc_rdma_req_map *map; - - map = kmalloc(sizeof(*map), flags); - if (map) - INIT_LIST_HEAD(&map->free); - return map; -} - -static bool svc_rdma_prealloc_maps(struct svcxprt_rdma *xprt) -{ - unsigned int i; - - /* One for each receive buffer on this connection. */ - i = xprt->sc_max_requests; - - while (i--) { - struct svc_rdma_req_map *map; - - map = alloc_req_map(GFP_KERNEL); - if (!map) { - dprintk("svcrdma: No memory for request map\n"); - return false; - } - list_add(&map->free, &xprt->sc_maps); - } - return true; -} - -struct svc_rdma_req_map *svc_rdma_get_req_map(struct svcxprt_rdma *xprt) -{ - struct svc_rdma_req_map *map = NULL; - - spin_lock(&xprt->sc_map_lock); - if (list_empty(&xprt->sc_maps)) - goto out_empty; - - map = list_first_entry(&xprt->sc_maps, - struct svc_rdma_req_map, free); - list_del_init(&map->free); - spin_unlock(&xprt->sc_map_lock); - -out: - map->count = 0; - return map; - -out_empty: - spin_unlock(&xprt->sc_map_lock); - - /* Pre-allocation amount was incorrect */ - map = alloc_req_map(GFP_NOIO); - if (map) - goto out; - - WARN_ONCE(1, "svcrdma: empty request map list?\n"); - return NULL; -} - -void svc_rdma_put_req_map(struct svcxprt_rdma *xprt, - struct svc_rdma_req_map *map) -{ - spin_lock(&xprt->sc_map_lock); - list_add(&map->free, &xprt->sc_maps); - spin_unlock(&xprt->sc_map_lock); -} - -static void svc_rdma_destroy_maps(struct svcxprt_rdma *xprt) -{ - while (!list_empty(&xprt->sc_maps)) { - struct svc_rdma_req_map *map; - - map = list_first_entry(&xprt->sc_maps, - struct svc_rdma_req_map, free); - list_del(&map->free); - kfree(map); - } -} - /* QP event handler */ static void qp_event_handler(struct ib_event *event, void *context) { @@ -474,24 +395,6 @@ void svc_rdma_wc_send(struct ib_cq *cq, struct ib_wc *wc) } /** - * svc_rdma_wc_write - Invoked by RDMA provider for each polled Write WC - * @cq: completion queue - * @wc: completed WR - * - */ -void svc_rdma_wc_write(struct ib_cq *cq, struct ib_wc *wc) -{ - struct ib_cqe *cqe = wc->wr_cqe; - struct svc_rdma_op_ctxt *ctxt; - - svc_rdma_send_wc_common_put(cq, wc, "write"); - - ctxt = container_of(cqe, struct svc_rdma_op_ctxt, cqe); - svc_rdma_unmap_dma(ctxt); - svc_rdma_put_context(ctxt, 0); -} - -/** * svc_rdma_wc_reg - Invoked by RDMA provider for each polled FASTREG WC * @cq: completion queue * @wc: completed WR @@ -561,14 +464,14 @@ static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv, INIT_LIST_HEAD(&cma_xprt->sc_read_complete_q); INIT_LIST_HEAD(&cma_xprt->sc_frmr_q); INIT_LIST_HEAD(&cma_xprt->sc_ctxts); - INIT_LIST_HEAD(&cma_xprt->sc_maps); + INIT_LIST_HEAD(&cma_xprt->sc_rw_ctxts); init_waitqueue_head(&cma_xprt->sc_send_wait); spin_lock_init(&cma_xprt->sc_lock); spin_lock_init(&cma_xprt->sc_rq_dto_lock); spin_lock_init(&cma_xprt->sc_frmr_q_lock); spin_lock_init(&cma_xprt->sc_ctxt_lock); - spin_lock_init(&cma_xprt->sc_map_lock); + spin_lock_init(&cma_xprt->sc_rw_ctxt_lock); /* * Note that this implies that the underlying transport support @@ -999,6 +902,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) newxprt, newxprt->sc_cm_id); dev = newxprt->sc_cm_id->device; + newxprt->sc_port_num = newxprt->sc_cm_id->port_num; /* Qualify the transport resource defaults with the * capabilities of this particular device */ @@ -1014,13 +918,11 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) svcrdma_max_bc_requests); newxprt->sc_rq_depth = newxprt->sc_max_requests + newxprt->sc_max_bc_requests; - newxprt->sc_sq_depth = RPCRDMA_SQ_DEPTH_MULT * newxprt->sc_rq_depth; + newxprt->sc_sq_depth = newxprt->sc_rq_depth; atomic_set(&newxprt->sc_sq_avail, newxprt->sc_sq_depth); if (!svc_rdma_prealloc_ctxts(newxprt)) goto errout; - if (!svc_rdma_prealloc_maps(newxprt)) - goto errout; /* * Limit ORD based on client limit, local device limit, and @@ -1050,6 +952,8 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) memset(&qp_attr, 0, sizeof qp_attr); qp_attr.event_handler = qp_event_handler; qp_attr.qp_context = &newxprt->sc_xprt; + qp_attr.port_num = newxprt->sc_cm_id->port_num; + qp_attr.cap.max_rdma_ctxs = newxprt->sc_max_requests; qp_attr.cap.max_send_wr = newxprt->sc_sq_depth; qp_attr.cap.max_recv_wr = newxprt->sc_rq_depth; qp_attr.cap.max_send_sge = newxprt->sc_max_sge; @@ -1248,8 +1152,8 @@ static void __svc_rdma_free(struct work_struct *work) } rdma_dealloc_frmr_q(rdma); + svc_rdma_destroy_rw_ctxts(rdma); svc_rdma_destroy_ctxts(rdma); - svc_rdma_destroy_maps(rdma); /* Destroy the QP if present (not a listener) */ if (rdma->sc_qp && !IS_ERR(rdma->sc_qp)) |