From: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: [PATCH v2 12/20] xprtrdma: Take struct ib_qp_attr and ib_qp_init_attr off the stack Date: Tue, 13 Jan 2015 11:26:23 -0500 [thread overview] Message-ID: <20150113162623.14086.27703.stgit@manet.1015granger.net> (raw) In-Reply-To: <20150113161440.14086.24801.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org> Reduce stack footprint of the connection upcall handler function. Signed-off-by: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> --- net/sunrpc/xprtrdma/verbs.c | 15 ++++++++------- net/sunrpc/xprtrdma/xprt_rdma.h | 2 ++ 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 123bb04..958b372 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -425,8 +425,8 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event) #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) struct sockaddr_in *addr = (struct sockaddr_in *) &ep->rep_remote_addr; #endif - struct ib_qp_attr attr; - struct ib_qp_init_attr iattr; + struct ib_qp_attr *attr = &ia->ri_qp_attr; + struct ib_qp_init_attr *iattr = &ia->ri_qp_init_attr; int connstate = 0; switch (event->event) { @@ -449,12 +449,13 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event) break; case RDMA_CM_EVENT_ESTABLISHED: connstate = 1; - ib_query_qp(ia->ri_id->qp, &attr, - IB_QP_MAX_QP_RD_ATOMIC | IB_QP_MAX_DEST_RD_ATOMIC, - &iattr); + ib_query_qp(ia->ri_id->qp, attr, + IB_QP_MAX_QP_RD_ATOMIC | IB_QP_MAX_DEST_RD_ATOMIC, + iattr); dprintk("RPC: %s: %d responder resources" " (%d initiator)\n", - __func__, attr.max_dest_rd_atomic, attr.max_rd_atomic); + __func__, attr->max_dest_rd_atomic, + attr->max_rd_atomic); goto connected; case RDMA_CM_EVENT_CONNECT_ERROR: connstate = -ENOTCONN; @@ -487,7 +488,7 @@ connected: #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) if (connstate == 1) { - int ird = attr.max_dest_rd_atomic; + int ird = attr->max_dest_rd_atomic; int tird = ep->rep_remote_cma.responder_resources; printk(KERN_INFO "rpcrdma: connection to %pI4:%u " "on %s, memreg %d slots %d ird %d%s\n", diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index ec596ce..2b4e778 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -71,6 +71,8 @@ struct rpcrdma_ia { enum rpcrdma_memreg ri_memreg_strategy; unsigned int ri_max_frmr_depth; struct ib_device_attr ri_devattr; + struct ib_qp_attr ri_qp_attr; + struct ib_qp_init_attr ri_qp_init_attr; }; /* -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: Chuck Lever <chuck.lever@oracle.com> To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Subject: [PATCH v2 12/20] xprtrdma: Take struct ib_qp_attr and ib_qp_init_attr off the stack Date: Tue, 13 Jan 2015 11:26:23 -0500 [thread overview] Message-ID: <20150113162623.14086.27703.stgit@manet.1015granger.net> (raw) In-Reply-To: <20150113161440.14086.24801.stgit@manet.1015granger.net> Reduce stack footprint of the connection upcall handler function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> --- net/sunrpc/xprtrdma/verbs.c | 15 ++++++++------- net/sunrpc/xprtrdma/xprt_rdma.h | 2 ++ 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 123bb04..958b372 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -425,8 +425,8 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event) #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) struct sockaddr_in *addr = (struct sockaddr_in *) &ep->rep_remote_addr; #endif - struct ib_qp_attr attr; - struct ib_qp_init_attr iattr; + struct ib_qp_attr *attr = &ia->ri_qp_attr; + struct ib_qp_init_attr *iattr = &ia->ri_qp_init_attr; int connstate = 0; switch (event->event) { @@ -449,12 +449,13 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event) break; case RDMA_CM_EVENT_ESTABLISHED: connstate = 1; - ib_query_qp(ia->ri_id->qp, &attr, - IB_QP_MAX_QP_RD_ATOMIC | IB_QP_MAX_DEST_RD_ATOMIC, - &iattr); + ib_query_qp(ia->ri_id->qp, attr, + IB_QP_MAX_QP_RD_ATOMIC | IB_QP_MAX_DEST_RD_ATOMIC, + iattr); dprintk("RPC: %s: %d responder resources" " (%d initiator)\n", - __func__, attr.max_dest_rd_atomic, attr.max_rd_atomic); + __func__, attr->max_dest_rd_atomic, + attr->max_rd_atomic); goto connected; case RDMA_CM_EVENT_CONNECT_ERROR: connstate = -ENOTCONN; @@ -487,7 +488,7 @@ connected: #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) if (connstate == 1) { - int ird = attr.max_dest_rd_atomic; + int ird = attr->max_dest_rd_atomic; int tird = ep->rep_remote_cma.responder_resources; printk(KERN_INFO "rpcrdma: connection to %pI4:%u " "on %s, memreg %d slots %d ird %d%s\n", diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index ec596ce..2b4e778 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -71,6 +71,8 @@ struct rpcrdma_ia { enum rpcrdma_memreg ri_memreg_strategy; unsigned int ri_max_frmr_depth; struct ib_device_attr ri_devattr; + struct ib_qp_attr ri_qp_attr; + struct ib_qp_init_attr ri_qp_init_attr; }; /*
next prev parent reply other threads:[~2015-01-13 16:26 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-01-13 16:24 [PATCH v2 00/20] NFS/RDMA client for 3.20 Chuck Lever 2015-01-13 16:24 ` Chuck Lever [not found] ` <20150113161440.14086.24801.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org> 2015-01-13 16:24 ` [PATCH v2 01/20] xprtrdma: human-readable completion status Chuck Lever 2015-01-13 16:24 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 02/20] xprtrdma: Modernize htonl and ntohl Chuck Lever 2015-01-13 16:25 ` Chuck Lever [not found] ` <20150113162459.14086.38318.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org> 2015-01-16 18:33 ` Anna Schumaker 2015-01-16 18:33 ` Anna Schumaker [not found] ` <54B95965.3080806-ZwjVKphTwtPQT0dZR+AlfA@public.gmane.org> 2015-01-16 18:56 ` Chuck Lever 2015-01-16 18:56 ` Chuck Lever [not found] ` <D386EBD7-A74F-49ED-BBEE-B8B686CA96A1-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> 2015-01-16 19:01 ` Anna Schumaker 2015-01-16 19:01 ` Anna Schumaker 2015-01-13 16:25 ` [PATCH v2 03/20] xprtrdma: Display XIDs in host byte order Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 04/20] xprtrdma: Clean up hdrlen Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 05/20] xprtrdma: Rename "xprt" and "rdma_connect" fields in struct rpcrdma_xprt Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 06/20] xprtrdma: Remove rpcrdma_ep::rep_ia Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 07/20] xprtrdma: Remove rl_mr field, and the mr_chunk union Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 08/20] xprtrdma: Move credit update to RPC reply handler Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:25 ` [PATCH v2 09/20] xprtrdma: Remove rpcrdma_ep::rep_func and ::rep_xprt Chuck Lever 2015-01-13 16:25 ` Chuck Lever 2015-01-13 16:26 ` [PATCH v2 10/20] xprtrdma: Free the pd if ib_query_qp() fails Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:26 ` [PATCH v2 11/20] xprtrdma: Take struct ib_device_attr off the stack Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:26 ` Chuck Lever [this message] 2015-01-13 16:26 ` [PATCH v2 12/20] xprtrdma: Take struct ib_qp_attr and ib_qp_init_attr " Chuck Lever 2015-01-13 16:26 ` [PATCH v2 13/20] xprtrdma: Simplify synopsis of rpcrdma_buffer_create() Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:26 ` [PATCH v2 14/20] xprtrdma: Refactor rpcrdma_buffer_create() and rpcrdma_buffer_destroy() Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:26 ` [PATCH v2 15/20] xprtrdma: Add struct rpcrdma_regbuf and helpers Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:26 ` [PATCH v2 16/20] xprtrdma: Allocate RPC send buffer separately from struct rpcrdma_req Chuck Lever 2015-01-13 16:26 ` Chuck Lever 2015-01-13 16:27 ` [PATCH v2 17/20] xprtrdma: Allocate RPC/RDMA " Chuck Lever 2015-01-13 16:27 ` Chuck Lever 2015-01-13 16:27 ` [PATCH v2 18/20] xprtrdma: Allocate RPC/RDMA receive buffer separately from struct rpcrdma_rep Chuck Lever 2015-01-13 16:27 ` Chuck Lever 2015-01-13 16:27 ` [PATCH v2 19/20] xprtrdma: Allocate zero pad separately from rpcrdma_buffer Chuck Lever 2015-01-13 16:27 ` Chuck Lever 2015-01-13 16:27 ` [PATCH v2 20/20] xprtrdma: Clean up after adding regbuf management Chuck Lever 2015-01-13 16:27 ` Chuck Lever 2015-01-13 17:44 ` [PATCH v2 00/20] NFS/RDMA client for 3.20 Steve Wise 2015-01-13 17:44 ` Steve Wise 2015-01-16 21:02 ` Anna Schumaker 2015-01-16 21:02 ` Anna Schumaker [not found] ` <54B97C73.9000602-ZwjVKphTwtPQT0dZR+AlfA@public.gmane.org> 2015-01-16 21:04 ` Chuck Lever 2015-01-16 21:04 ` Chuck Lever
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