[v1,19/19] xprtrdma: Eliminate struct rpcrdma_create_data_internal

Message ID	20190410200813.11522.2798.stgit@manet.1015granger.net (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-nfs-owner@kernel.org> Subject: [PATCH v1 19/19] xprtrdma: Eliminate struct rpcrdma_create_data_internal From: Chuck Lever <chuck.lever@oracle.com> To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Wed, 10 Apr 2019 16:08:13 -0400 Message-ID: <20190410200813.11522.2798.stgit@manet.1015granger.net> In-Reply-To: <20190410200446.11522.21145.stgit@manet.1015granger.net> References: <20190410200446.11522.21145.stgit@manet.1015granger.net> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk
Series	Proposed NFS/RDMA patches for v5.2 \| expand [v1,00/19] Proposed NFS/RDMA patches for v5.2 [v1,01/19] SUNRPC: Avoid digging into the ATOMIC pool [v1,02/19] xprtrdma: Fix an frwr_map recovery nit [v1,03/19] xprtrdma: Defer completion only when local invalidation is needed [v1,04/19] xprtrdma: Clean up rpcrdma_create_req() [v1,05/19] xprtrdma: Clean up rpcrdma_create_rep() and rpcrdma_destroy_rep() [v1,06/19] xprtrdma: rpcrdma_regbuf alignment [v1,07/19] xprtrdma: Allocate req's regbufs at xprt create time [v1,08/19] xprtrdma: De-duplicate "allocate new, free old regbuf" [v1,09/19] xprtrdma: Clean up regbuf helpers [v1,10/19] xprtrdma: Backchannel can use GFP_KERNEL allocations [v1,11/19] xprtrdma: Increase maximum number of backchannel request [v1,12/19] xprtrdma: Trace marshaling failures [v1,13/19] xprtrdma: Clean up sendctx functions [v1,14/19] xprtrdma: More Send completion batching [v1,15/19] xprtrdma: Eliminate rpcrdma_ia::ri_device [v1,16/19] SUNRPC: Update comments based on recent changes [v1,17/19] xprtrdma: Remove rpcrdma_create_data_internal::rsize and wsize [v1,18/19] xprtrdma: Aggregate the inline settings in struct rpcrdma_ep [v1,19/19] xprtrdma: Eliminate struct rpcrdma_create_data_internal

diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c index 7cd2718..1d369b6 100644 --- a/net/sunrpc/xprtrdma/frwr_ops.c +++ b/net/sunrpc/xprtrdma/frwr_ops.c @@ -194,12 +194,11 @@ int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr) * frwr_open - Prepare an endpoint for use with FRWR * @ia: interface adapter this endpoint will use * @ep: endpoint to prepare - * @cdata: transport parameters * * On success, sets: * ep->rep_attr.cap.max_send_wr * ep->rep_attr.cap.max_recv_wr - * cdata->max_requests + * ep->rep_max_requests * ia->ri_max_segs * * And these FRWR-related fields: @@ -208,8 +207,7 @@ int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr) * * On failure, a negative errno is returned. */ -int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep, - struct rpcrdma_create_data_internal *cdata) +int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep) { struct ib_device_attr *attrs = &ia->ri_id->device->attrs; int max_qp_wr, depth, delta; @@ -258,19 +256,18 @@ int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep, max_qp_wr -= 1; if (max_qp_wr < RPCRDMA_MIN_SLOT_TABLE) return -ENOMEM; - if (cdata->max_requests > max_qp_wr) - cdata->max_requests = max_qp_wr; - ep->rep_attr.cap.max_send_wr = cdata->max_requests * depth; + if (ep->rep_max_requests > max_qp_wr) + ep->rep_max_requests = max_qp_wr; + ep->rep_attr.cap.max_send_wr = ep->rep_max_requests * depth; if (ep->rep_attr.cap.max_send_wr > max_qp_wr) { - cdata->max_requests = max_qp_wr / depth; - if (!cdata->max_requests) + ep->rep_max_requests = max_qp_wr / depth; + if (!ep->rep_max_requests) return -EINVAL; - ep->rep_attr.cap.max_send_wr = cdata->max_requests * - depth; + ep->rep_attr.cap.max_send_wr = ep->rep_max_requests * depth; } ep->rep_attr.cap.max_send_wr += RPCRDMA_BACKWARD_WRS; ep->rep_attr.cap.max_send_wr += 1; /* for ib_drain_sq */ - ep->rep_attr.cap.max_recv_wr = cdata->max_requests; + ep->rep_attr.cap.max_recv_wr = ep->rep_max_requests; ep->rep_attr.cap.max_recv_wr += RPCRDMA_BACKWARD_WRS; ep->rep_attr.cap.max_recv_wr += 1; /* for ib_drain_rq */ diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 4e5b8fe..f0b13a9 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -68,7 +68,7 @@ * tunables */ -static unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE; +unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE; unsigned int xprt_rdma_max_inline_read = RPCRDMA_DEF_INLINE; unsigned int xprt_rdma_max_inline_write = RPCRDMA_DEF_INLINE; unsigned int xprt_rdma_memreg_strategy = RPCRDMA_FRWR; @@ -288,7 +288,7 @@ cancel_delayed_work_sync(&r_xprt->rx_connect_worker); - rpcrdma_ep_destroy(&r_xprt->rx_ep, &r_xprt->rx_ia); + rpcrdma_ep_destroy(r_xprt); rpcrdma_buffer_destroy(&r_xprt->rx_buf); rpcrdma_ia_close(&r_xprt->rx_ia); @@ -311,10 +311,8 @@ static struct rpc_xprt * xprt_setup_rdma(struct xprt_create *args) { - struct rpcrdma_create_data_internal cdata; struct rpc_xprt *xprt; struct rpcrdma_xprt *new_xprt; - struct rpcrdma_ep *new_ep; struct sockaddr *sap; int rc; @@ -349,29 +347,12 @@ xprt_set_bound(xprt); xprt_rdma_format_addresses(xprt, sap); - cdata.max_requests = xprt_rdma_slot_table_entries; - - /* - * Create new transport instance, which includes initialized - * o ia - * o endpoint - * o buffers - */ - new_xprt = rpcx_to_rdmax(xprt); - rc = rpcrdma_ia_open(new_xprt); if (rc) goto out1; - /* - * initialize and create ep - */ - new_xprt->rx_data = cdata; - new_ep = &new_xprt->rx_ep; - - rc = rpcrdma_ep_create(&new_xprt->rx_ep, - &new_xprt->rx_ia, &new_xprt->rx_data); + rc = rpcrdma_ep_create(new_xprt); if (rc) goto out2; @@ -402,7 +383,7 @@ rpcrdma_buffer_destroy(&new_xprt->rx_buf); rc = -ENODEV; out3: - rpcrdma_ep_destroy(new_ep, &new_xprt->rx_ia); + rpcrdma_ep_destroy(new_xprt); out2: rpcrdma_ia_close(&new_xprt->rx_ia); out1: diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index b419906..c65edcf 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -476,18 +476,22 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) ia->ri_pd = NULL; } -/* - * Create unconnected endpoint. +/** + * rpcrdma_ep_create - Create unconnected endpoint + * @r_xprt: transport to instantiate + * + * Returns zero on success, or a negative errno. */ -int -rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, - struct rpcrdma_create_data_internal *cdata) +int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt) { + struct rpcrdma_ep *ep = &r_xprt->rx_ep; + struct rpcrdma_ia *ia = &r_xprt->rx_ia; struct rpcrdma_connect_private *pmsg = &ep->rep_cm_private; struct ib_cq *sendcq, *recvcq; unsigned int max_sge; int rc; + ep->rep_max_requests = xprt_rdma_slot_table_entries; ep->rep_inline_send = xprt_rdma_max_inline_write; ep->rep_inline_recv = xprt_rdma_max_inline_read; @@ -499,7 +503,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) } ia->ri_max_send_sges = max_sge; - rc = frwr_open(ia, ep, cdata); + rc = frwr_open(ia, ep); if (rc) return rc; @@ -521,7 +525,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) ep->rep_attr.cap.max_send_sge, ep->rep_attr.cap.max_recv_sge); - ep->rep_send_batch = cdata->max_requests >> 3; + ep->rep_send_batch = ep->rep_max_requests >> 3; ep->rep_send_count = ep->rep_send_batch; init_waitqueue_head(&ep->rep_connect_wait); ep->rep_receive_count = 0; @@ -584,16 +588,16 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) return rc; } -/* - * rpcrdma_ep_destroy +/** + * rpcrdma_ep_destroy - Disconnect and destroy endpoint. + * @r_xprt: transport instance to shut down * - * Disconnect and destroy endpoint. After this, the only - * valid operations on the ep are to free it (if dynamically - * allocated) or re-create it. */ -void -rpcrdma_ep_destroy(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia) +void rpcrdma_ep_destroy(struct rpcrdma_xprt *r_xprt) { + struct rpcrdma_ep *ep = &r_xprt->rx_ep; + struct rpcrdma_ia *ia = &r_xprt->rx_ia; + if (ia->ri_id && ia->ri_id->qp) { rpcrdma_ep_disconnect(ep, ia); rdma_destroy_qp(ia->ri_id); @@ -623,7 +627,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) goto out1; rc = -ENOMEM; - err = rpcrdma_ep_create(ep, ia, &r_xprt->rx_data); + err = rpcrdma_ep_create(r_xprt); if (err) { pr_err("rpcrdma: rpcrdma_ep_create returned %d\n", err); goto out2; @@ -640,7 +644,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) return 0; out3: - rpcrdma_ep_destroy(ep, ia); + rpcrdma_ep_destroy(r_xprt); out2: rpcrdma_ia_close(ia); out1: @@ -1082,14 +1086,19 @@ static bool rpcrdma_rep_create(struct rpcrdma_xprt *r_xprt, bool temp) return false; } -int -rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt) +/** + * rpcrdma_buffer_create - Create initial set of req/rep objects + * @r_xprt: transport instance to (re)initialize + * + * Returns zero on success, otherwise a negative errno. + */ +int rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt) { struct rpcrdma_buffer *buf = &r_xprt->rx_buf; int i, rc; buf->rb_flags = 0; - buf->rb_max_requests = r_xprt->rx_data.max_requests; + buf->rb_max_requests = r_xprt->rx_ep.rep_max_requests; buf->rb_bc_srv_max_requests = 0; spin_lock_init(&buf->rb_mrlock); spin_lock_init(&buf->rb_lock); diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 9beb7fc..618d97b 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -97,6 +97,7 @@ struct rpcrdma_ep { wait_queue_head_t rep_connect_wait; struct rpcrdma_connect_private rep_cm_private; struct rdma_conn_param rep_remote_cma; + unsigned int rep_max_requests; /* set by /proc */ unsigned int rep_inline_send; /* negotiated */ unsigned int rep_inline_recv; /* negotiated */ int rep_receive_count; @@ -414,16 +415,6 @@ enum { }; /* - * Internal structure for transport instance creation. This - * exists primarily for modularity. - * - * This data should be set with mount options - */ -struct rpcrdma_create_data_internal { - unsigned int max_requests; /* max requests (slots) in flight */ -}; - -/* * Statistics for RPCRDMA */ struct rpcrdma_stats { @@ -467,7 +458,6 @@ struct rpcrdma_xprt { struct rpcrdma_ia rx_ia; struct rpcrdma_ep rx_ep; struct rpcrdma_buffer rx_buf; - struct rpcrdma_create_data_internal rx_data; struct delayed_work rx_connect_worker; struct rpcrdma_stats rx_stats; }; @@ -507,9 +497,8 @@ struct rpcrdma_xprt { /* * Endpoint calls - xprtrdma/verbs.c */ -int rpcrdma_ep_create(struct rpcrdma_ep *, struct rpcrdma_ia *, - struct rpcrdma_create_data_internal *); -void rpcrdma_ep_destroy(struct rpcrdma_ep *, struct rpcrdma_ia *); +int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt); +void rpcrdma_ep_destroy(struct rpcrdma_xprt *r_xprt); int rpcrdma_ep_connect(struct rpcrdma_ep *, struct rpcrdma_ia *); void rpcrdma_ep_disconnect(struct rpcrdma_ep *, struct rpcrdma_ia *); @@ -583,8 +572,7 @@ static inline bool rpcrdma_regbuf_dma_map(struct rpcrdma_xprt *r_xprt, /* Memory registration calls xprtrdma/frwr_ops.c */ bool frwr_is_supported(struct ib_device *device); -int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep, - struct rpcrdma_create_data_internal *cdata); +int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep); int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr); void frwr_release_mr(struct rpcrdma_mr *mr); size_t frwr_maxpages(struct rpcrdma_xprt *r_xprt); @@ -629,6 +617,7 @@ static inline void rpcrdma_set_xdrlen(struct xdr_buf *xdr, size_t len) /* RPC/RDMA module init - xprtrdma/transport.c */ +extern unsigned int xprt_rdma_slot_table_entries; extern unsigned int xprt_rdma_max_inline_read; extern unsigned int xprt_rdma_max_inline_write; void xprt_rdma_format_addresses(struct rpc_xprt *xprt, struct sockaddr *sap);

[v1,19/19] xprtrdma: Eliminate struct rpcrdma_create_data_internal

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