From patchwork Sun Mar 3 20:33:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuval Shaia X-Patchwork-Id: 1050925 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=oracle.com header.i=@oracle.com header.b="m/YuzhDW"; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44CFJX3Mtmz9sCJ for ; Mon, 4 Mar 2019 07:34:51 +1100 (AEDT) Received: from localhost ([127.0.0.1]:43873 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h0Xov-0004V2-Hl for incoming@patchwork.ozlabs.org; Sun, 03 Mar 2019 15:34:49 -0500 Received: from eggs.gnu.org ([209.51.188.92]:46154) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h0XoA-0004Td-8y for qemu-devel@nongnu.org; Sun, 03 Mar 2019 15:34:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h0Xo9-0006Ld-0J for qemu-devel@nongnu.org; Sun, 03 Mar 2019 15:34:02 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:48346) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h0Xo8-0006FM-N1 for qemu-devel@nongnu.org; Sun, 03 Mar 2019 15:34:00 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x23KTGtc046538; Sun, 3 Mar 2019 20:33:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=Mc/kCeiCxumW1VUVqJpslB7h9VvVGZB6dDtARtgdfFY=; b=m/YuzhDWIdikeX6lN29VaXcuqpFs9KcHCkoxP9w0x1gLw3SQzfXQiuVeuWkY6Lrcn1LA hrrnEw5GBrbQWU/vGtNXIHPEOmxkAtR8jhKHu8Gul8fpQ9+nnUDIRSCUpxaMgIgTihd1 86kfhURzhIIb2554buKgGI/ZfQ588kB1AjRsbkwFJjEmV8sFJZq5T14vwswtI1zO9XUI fX7IS5UvkiO6zGiG9CatIJMnddS9BgURvoTjmYGGrBHMmYMq52AAeUfFyWk2QTbvJYGt bj3TiyBQ/rk6Its8H/zuYtg+idTbePjkrByjZgWm8wRU1gXtk35dcQQSwhpnAyAv8G49 cQ== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2120.oracle.com with ESMTP id 2qyjfr3p8t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 03 Mar 2019 20:33:59 +0000 Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x23KXwwq022425 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 3 Mar 2019 20:33:58 GMT Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x23KXwJV002845; Sun, 3 Mar 2019 20:33:58 GMT Received: from localhost.localdomain (/77.138.186.148) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 03 Mar 2019 12:33:58 -0800 From: Yuval Shaia To: dgilbert@redhat.com, yuval.shaia@oracle.com, marcel.apfelbaum@gmail.com, armbru@redhat.com, qemu-devel@nongnu.org Date: Sun, 3 Mar 2019 22:33:38 +0200 Message-Id: <20190303203345.2472-3-yuval.shaia@oracle.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190303203345.2472-1-yuval.shaia@oracle.com> References: <20190303203345.2472-1-yuval.shaia@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9184 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903030160 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 156.151.31.85 Subject: [Qemu-devel] [PATCH v4 2/9] hw/rdma: Introduce protected qlist X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" To make code more readable move handling of protected list to a rdma_utils Signed-off-by: Yuval Shaia Reviewed-by: Marcel Apfelbaum --- hw/rdma/rdma_backend.c | 20 +++++-------------- hw/rdma/rdma_backend_defs.h | 8 ++------ hw/rdma/rdma_utils.c | 39 +++++++++++++++++++++++++++++++++++++ hw/rdma/rdma_utils.h | 9 +++++++++ 4 files changed, 55 insertions(+), 21 deletions(-) diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c index 24bac00a20..0ed14751be 100644 --- a/hw/rdma/rdma_backend.c +++ b/hw/rdma/rdma_backend.c @@ -527,9 +527,7 @@ static unsigned int save_mad_recv_buffer(RdmaBackendDev *backend_dev, bctx->up_ctx = ctx; bctx->sge = *sge; - qemu_mutex_lock(&backend_dev->recv_mads_list.lock); - qlist_append_int(backend_dev->recv_mads_list.list, bctx_id); - qemu_mutex_unlock(&backend_dev->recv_mads_list.lock); + rdma_protected_qlist_append_int64(&backend_dev->recv_mads_list, bctx_id); return 0; } @@ -913,23 +911,19 @@ static inline void build_mad_hdr(struct ibv_grh *grh, union ibv_gid *sgid, static void process_incoming_mad_req(RdmaBackendDev *backend_dev, RdmaCmMuxMsg *msg) { - QObject *o_ctx_id; unsigned long cqe_ctx_id; BackendCtx *bctx; char *mad; trace_mad_message("recv", msg->umad.mad, msg->umad_len); - qemu_mutex_lock(&backend_dev->recv_mads_list.lock); - o_ctx_id = qlist_pop(backend_dev->recv_mads_list.list); - qemu_mutex_unlock(&backend_dev->recv_mads_list.lock); - if (!o_ctx_id) { + cqe_ctx_id = rdma_protected_qlist_pop_int64(&backend_dev->recv_mads_list); + if (cqe_ctx_id == -ENOENT) { rdma_warn_report("No more free MADs buffers, waiting for a while"); sleep(THR_POLL_TO); return; } - cqe_ctx_id = qnum_get_uint(qobject_to(QNum, o_ctx_id)); bctx = rdma_rm_get_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id); if (unlikely(!bctx)) { rdma_error_report("No matching ctx for req %ld", cqe_ctx_id); @@ -994,8 +988,7 @@ static int mad_init(RdmaBackendDev *backend_dev, CharBackend *mad_chr_be) return -EIO; } - qemu_mutex_init(&backend_dev->recv_mads_list.lock); - backend_dev->recv_mads_list.list = qlist_new(); + rdma_protected_qlist_init(&backend_dev->recv_mads_list); enable_rdmacm_mux_async(backend_dev); @@ -1010,10 +1003,7 @@ static void mad_fini(RdmaBackendDev *backend_dev) { disable_rdmacm_mux_async(backend_dev); qemu_chr_fe_disconnect(backend_dev->rdmacm_mux.chr_be); - if (backend_dev->recv_mads_list.list) { - qlist_destroy_obj(QOBJECT(backend_dev->recv_mads_list.list)); - qemu_mutex_destroy(&backend_dev->recv_mads_list.lock); - } + rdma_protected_qlist_destroy(&backend_dev->recv_mads_list); } int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev, diff --git a/hw/rdma/rdma_backend_defs.h b/hw/rdma/rdma_backend_defs.h index 15ae8b970e..a8c15b09ab 100644 --- a/hw/rdma/rdma_backend_defs.h +++ b/hw/rdma/rdma_backend_defs.h @@ -20,6 +20,7 @@ #include "chardev/char-fe.h" #include #include "contrib/rdmacm-mux/rdmacm-mux.h" +#include "rdma_utils.h" typedef struct RdmaDeviceResources RdmaDeviceResources; @@ -30,11 +31,6 @@ typedef struct RdmaBackendThread { bool is_running; /* Set by the thread to report its status */ } RdmaBackendThread; -typedef struct RecvMadList { - QemuMutex lock; - QList *list; -} RecvMadList; - typedef struct RdmaCmMux { CharBackend *chr_be; int can_receive; @@ -48,7 +44,7 @@ typedef struct RdmaBackendDev { struct ibv_context *context; struct ibv_comp_channel *channel; uint8_t port_num; - RecvMadList recv_mads_list; + RdmaProtectedQList recv_mads_list; RdmaCmMux rdmacm_mux; } RdmaBackendDev; diff --git a/hw/rdma/rdma_utils.c b/hw/rdma/rdma_utils.c index b9f07fcda7..0a8abe572d 100644 --- a/hw/rdma/rdma_utils.c +++ b/hw/rdma/rdma_utils.c @@ -14,6 +14,8 @@ */ #include "qemu/osdep.h" +#include "qapi/qmp/qlist.h" +#include "qapi/qmp/qnum.h" #include "trace.h" #include "rdma_utils.h" @@ -51,3 +53,40 @@ void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len) pci_dma_unmap(dev, buffer, len, DMA_DIRECTION_TO_DEVICE, 0); } } + +void rdma_protected_qlist_init(RdmaProtectedQList *list) +{ + qemu_mutex_init(&list->lock); + list->list = qlist_new(); +} + +void rdma_protected_qlist_destroy(RdmaProtectedQList *list) +{ + if (list->list) { + qlist_destroy_obj(QOBJECT(list->list)); + qemu_mutex_destroy(&list->lock); + list->list = NULL; + } +} + +void rdma_protected_qlist_append_int64(RdmaProtectedQList *list, int64_t value) +{ + qemu_mutex_lock(&list->lock); + qlist_append_int(list->list, value); + qemu_mutex_unlock(&list->lock); +} + +int64_t rdma_protected_qlist_pop_int64(RdmaProtectedQList *list) +{ + QObject *obj; + + qemu_mutex_lock(&list->lock); + obj = qlist_pop(list->list); + qemu_mutex_unlock(&list->lock); + + if (!obj) { + return -ENOENT; + } + + return qnum_get_uint(qobject_to(QNum, obj)); +} diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h index acd148837f..a8bf1d4fec 100644 --- a/hw/rdma/rdma_utils.h +++ b/hw/rdma/rdma_utils.h @@ -29,8 +29,17 @@ #define rdma_info_report(fmt, ...) \ info_report("%s: " fmt, "rdma", ## __VA_ARGS__) +typedef struct RdmaProtectedQList { + QemuMutex lock; + QList *list; +} RdmaProtectedQList; + void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen); void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len); +void rdma_protected_qlist_init(RdmaProtectedQList *list); +void rdma_protected_qlist_destroy(RdmaProtectedQList *list); +void rdma_protected_qlist_append_int64(RdmaProtectedQList *list, int64_t value); +int64_t rdma_protected_qlist_pop_int64(RdmaProtectedQList *list); static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr) {