From patchwork Thu Dec 2 23:20:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bob Pearson X-Patchwork-Id: 12653809 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76D50C4332F for ; Thu, 2 Dec 2021 23:21:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357881AbhLBXZH (ORCPT ); Thu, 2 Dec 2021 18:25:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356945AbhLBXY6 (ORCPT ); Thu, 2 Dec 2021 18:24:58 -0500 Received: from mail-oo1-xc36.google.com (mail-oo1-xc36.google.com [IPv6:2607:f8b0:4864:20::c36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAE21C06175E for ; Thu, 2 Dec 2021 15:21:35 -0800 (PST) Received: by mail-oo1-xc36.google.com with SMTP id b1-20020a4a8101000000b002c659ab1342so442551oog.1 for ; Thu, 02 Dec 2021 15:21:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=leZbB0bzpOOLT5UrRva0lXXhk8ytVs2k2Tobc+6Axnk=; b=J2OZFHpWfOwwNM+MDcHbRDPPDB3fop1V/bvt/GSO6jLJUUGsQeJHKySMQub/1tkel/ 5NI/Oc43+4F7EP5/8w8bRMA9RXKCfSwYcTjRpA/y7o/+MMI4uoduHp0I5LGr42wVx2KT Yi1155YRyE+RD78Y0TtmWKKkButpd71BZn6djfQQTqzZN4XtBfxXQD6mmOPwnt3Z52TO 6mIt9tJ4VFBqTjDVRF0tvzu/0ARgGYVx4UfTVYkfCV8kAbG3vXrbOlGcBCjiNOuFkcPP xgZIMk+wyvu8EdmXpHLP1AD1FO7p4rdX5xYNKDmUhJeFsWvlnpYnId5fZLvWYUQqkKcI u5PA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=leZbB0bzpOOLT5UrRva0lXXhk8ytVs2k2Tobc+6Axnk=; b=LpyAMJqNWZNSlVdbWvyEEXqyOUWYWgtMHnWI0FnnlJhvroxA411nE51J2DUodjfc9v zBeM1TD5bOGFdXHhj5J0vY6mCYX4bI+Enxe0pIk3lyjytqtoutas3rKVHlpVST5RjyxQ KdvfQuEOHp+TZ4PPakl98C7dF6RBlFc5CP5YB/+vge/xn5Ns1JLn2jli3iearpgBHtnL WBFht5WVrAJxE6Lu/UiPkun3BATBBYic1suQEKdPsofKwEjEGLLy3/EycgV623zqiHEN Cv3GlPkzRIHB6sbNX2E0NZSW60/wj3jZTAZrxGhd7bM5qLiqkvKoU06fOE2ZFrGmgo86 x6gQ== X-Gm-Message-State: AOAM533gCQtXBEdLl269vXkFXZ5ICmcKoIN8MwRm3ZRsYFYf5pENR9Ht fd94pFS0IqhBwjPsHVhT4SA= X-Google-Smtp-Source: ABdhPJyxrC2SaQEgMR46QCCAzFppN4ZJQyy23dpcTV6wxLij4R+69tsKI1gSPHM2jO+7/K+2yx5jfg== X-Received: by 2002:a4a:9568:: with SMTP id n37mr10198558ooi.73.1638487294850; Thu, 02 Dec 2021 15:21:34 -0800 (PST) Received: from ubuntu-21.tx.rr.com (2603-8081-140c-1a00-369f-9a20-b320-aa23.res6.spectrum.com. [2603:8081:140c:1a00:369f:9a20:b320:aa23]) by smtp.googlemail.com with ESMTPSA id g7sm296425oon.27.2021.12.02.15.21.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 15:21:34 -0800 (PST) From: Bob Pearson To: jgg@nvidia.com, zyjzyj2000@gmail.com, linux-rdma@vger.kernel.org Cc: Bob Pearson Subject: [PATCH v5 for-next 7/8] RDMA/rxe: Replace rxe_alloc by kzalloc for rxe_mc_elem Date: Thu, 2 Dec 2021 17:20:34 -0600 Message-Id: <20211202232035.62299-8-rpearsonhpe@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211202232035.62299-1-rpearsonhpe@gmail.com> References: <20211202232035.62299-1-rpearsonhpe@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Currently rxe_mc_elem structs are treated as rdma objects which is unneeded. This patch replaces rxe_alloc and rxe_drop_ref by kzalloc and kfree for these structs which hold associatons between multicast groups and QPs. Signed-off-by: Bob Pearson --- drivers/infiniband/sw/rxe/rxe.c | 3 --- drivers/infiniband/sw/rxe/rxe_mcast.c | 22 ++++++++++++++-------- drivers/infiniband/sw/rxe/rxe_pool.c | 6 ------ drivers/infiniband/sw/rxe/rxe_pool.h | 1 - drivers/infiniband/sw/rxe/rxe_verbs.h | 2 -- 5 files changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c index 09c73a0d8513..20a925aed29c 100644 --- a/drivers/infiniband/sw/rxe/rxe.c +++ b/drivers/infiniband/sw/rxe/rxe.c @@ -31,7 +31,6 @@ void rxe_dealloc(struct ib_device *ib_dev) rxe_pool_cleanup(&rxe->mr_pool); rxe_pool_cleanup(&rxe->mw_pool); rxe_pool_cleanup(&rxe->mc_grp_pool); - rxe_pool_cleanup(&rxe->mc_elem_pool); if (rxe->tfm) crypto_free_shash(rxe->tfm); @@ -128,8 +127,6 @@ static void rxe_init_pools(struct rxe_dev *rxe) rxe_pool_init(rxe, &rxe->mw_pool, RXE_TYPE_MW, rxe->attr.max_mw); rxe_pool_init(rxe, &rxe->mc_grp_pool, RXE_TYPE_MC_GRP, rxe->attr.max_mcast_grp); - rxe_pool_init(rxe, &rxe->mc_elem_pool, RXE_TYPE_MC_ELEM, - rxe->attr.max_total_mcast_qp_attach); } /* initialize rxe device state */ diff --git a/drivers/infiniband/sw/rxe/rxe_mcast.c b/drivers/infiniband/sw/rxe/rxe_mcast.c index e110c4d3fbf4..b935634f86cd 100644 --- a/drivers/infiniband/sw/rxe/rxe_mcast.c +++ b/drivers/infiniband/sw/rxe/rxe_mcast.c @@ -63,14 +63,15 @@ int rxe_mcast_add_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, goto out; } - elem = rxe_alloc(&rxe->mc_elem_pool); + elem = kzalloc(sizeof(*elem), GFP_KERNEL); if (!elem) { err = -ENOMEM; goto out; } - /* each qp holds a ref on the grp */ + /* each elem holds a ref on the grp and the qp */ rxe_add_ref(grp); + rxe_add_ref(qp); grp->num_qp++; elem->qp = qp; @@ -91,6 +92,7 @@ int rxe_mcast_drop_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, { struct rxe_mc_grp *grp; struct rxe_mc_elem *elem, *tmp; + int ret = -EINVAL; grp = rxe_pool_get_key(&rxe->mc_grp_pool, mgid); if (!grp) @@ -107,18 +109,21 @@ int rxe_mcast_drop_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, spin_unlock_bh(&grp->mcg_lock); spin_unlock_bh(&qp->grp_lock); - rxe_drop_ref(elem); - rxe_drop_ref(grp); /* ref held by QP */ - rxe_drop_ref(grp); /* ref from get_key */ - return 0; + kfree(elem); + rxe_drop_ref(qp); /* ref held by elem */ + rxe_drop_ref(grp); /* ref held by elem */ + ret = 0; + goto out_drop_ref; } } spin_unlock_bh(&grp->mcg_lock); spin_unlock_bh(&qp->grp_lock); + +out_drop_ref: rxe_drop_ref(grp); /* ref from get_key */ err1: - return -EINVAL; + return ret; } void rxe_drop_all_mcast_groups(struct rxe_qp *qp) @@ -142,8 +147,9 @@ void rxe_drop_all_mcast_groups(struct rxe_qp *qp) list_del(&elem->qp_list); grp->num_qp--; spin_unlock_bh(&grp->mcg_lock); + rxe_drop_ref(qp); rxe_drop_ref(grp); - rxe_drop_ref(elem); + kfree(elem); } } diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c index c00eef344f98..2c241ffc0c8b 100644 --- a/drivers/infiniband/sw/rxe/rxe_pool.c +++ b/drivers/infiniband/sw/rxe/rxe_pool.c @@ -89,12 +89,6 @@ static const struct rxe_type_info { .key_offset = offsetof(struct rxe_mc_grp, mgid), .key_size = sizeof(union ib_gid), }, - [RXE_TYPE_MC_ELEM] = { - .name = "rxe-mc_elem", - .size = sizeof(struct rxe_mc_elem), - .elem_offset = offsetof(struct rxe_mc_elem, elem), - .flags = RXE_POOL_ALLOC, - }, }; void rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool, diff --git a/drivers/infiniband/sw/rxe/rxe_pool.h b/drivers/infiniband/sw/rxe/rxe_pool.h index 62e9e439c99c..db2caff6f408 100644 --- a/drivers/infiniband/sw/rxe/rxe_pool.h +++ b/drivers/infiniband/sw/rxe/rxe_pool.h @@ -23,7 +23,6 @@ enum rxe_elem_type { RXE_TYPE_MR, RXE_TYPE_MW, RXE_TYPE_MC_GRP, - RXE_TYPE_MC_ELEM, RXE_NUM_TYPES, /* keep me last */ }; diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index 022abba4fb6b..9f39b097a976 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -364,7 +364,6 @@ struct rxe_mc_grp { }; struct rxe_mc_elem { - struct rxe_pool_elem elem; struct list_head qp_list; struct list_head grp_list; struct rxe_qp *qp; @@ -402,7 +401,6 @@ struct rxe_dev { struct rxe_pool mr_pool; struct rxe_pool mw_pool; struct rxe_pool mc_grp_pool; - struct rxe_pool mc_elem_pool; spinlock_t pending_lock; /* guard pending_mmaps */ struct list_head pending_mmaps;