From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B46E4CA9EAE for ; Tue, 29 Oct 2019 11:53:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B8B6222C7 for ; Tue, 29 Oct 2019 11:53:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572350023; bh=is+u4D3oM9AZwjYfpcd7H0Grg1Q2090bxEH+exK6MMk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zGkHEHm26t0RN1HXO/1nDnRPiYgEQ5pDy+FPzMkucAeeaj5Sc9TBcnAmYW8OEtL88 ZagS5UHsDbFmUbCnhjhR3iZ/sEck2HgQmceAL2819tdMc4qeW0cz7b+5PZSFj5Rhg0 EoLSu4SEZNPrqyhBreNr5WXeUhsepqU2CPlV5Fec= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727385AbfJ2Lxn (ORCPT ); Tue, 29 Oct 2019 07:53:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:50772 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725776AbfJ2Lxn (ORCPT ); Tue, 29 Oct 2019 07:53:43 -0400 Received: from localhost (unknown [77.137.89.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 828E521D56; Tue, 29 Oct 2019 11:53:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572350022; bh=is+u4D3oM9AZwjYfpcd7H0Grg1Q2090bxEH+exK6MMk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jBB80yD6KYwckGTxlFQBfoWtjC0jMfhCQD/8zNvaBdiC2b4PaceSCbfFzgN0eCwZc BtxgVRMi4WBmsJHk15fpndpEWPGbIF7ICfi28WyTjTwHeeOW8xOxuJVyeYjhTJWdVE T4htS6iMXtWPA/ggTaf7qJeUox97q3xRZmUFCEp8= From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Daniel Jurgens , Parav Pandit Subject: [PATCH rdma-next v1 2/2] IB/core: Cut down single member ib_cache structure Date: Tue, 29 Oct 2019 13:53:27 +0200 Message-Id: <20191029115327.16589-3-leon@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191029115327.16589-1-leon@kernel.org> References: <20191029115327.16589-1-leon@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Parav Pandit Given that ib_cache structure has only single member now, merge the cache lock directly in the ib_device. Signed-off-by: Parav Pandit Reviewed-by: Daniel Jurgens Signed-off-by: Leon Romanovsky --- drivers/infiniband/core/cache.c | 30 +++++++++++++++--------------- include/rdma/ib_verbs.h | 7 ++----- 2 files changed, 17 insertions(+), 20 deletions(-) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 1d5c0df7dfab..1d6f1a20194d 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -1033,7 +1033,7 @@ int ib_get_cached_pkey(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); cache = device->port_data[port_num].cache.pkey; @@ -1042,7 +1042,7 @@ int ib_get_cached_pkey(struct ib_device *device, else *pkey = cache->table[index]; - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return ret; } @@ -1057,9 +1057,9 @@ int ib_get_cached_subnet_prefix(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); *sn_pfx = device->port_data[port_num].cache.subnet_prefix; - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return 0; } @@ -1079,7 +1079,7 @@ int ib_find_cached_pkey(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); cache = device->port_data[port_num].cache.pkey; @@ -1100,7 +1100,7 @@ int ib_find_cached_pkey(struct ib_device *device, ret = 0; } - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return ret; } @@ -1119,7 +1119,7 @@ int ib_find_exact_cached_pkey(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); cache = device->port_data[port_num].cache.pkey; @@ -1132,7 +1132,7 @@ int ib_find_exact_cached_pkey(struct ib_device *device, break; } - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return ret; } @@ -1148,9 +1148,9 @@ int ib_get_cached_lmc(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); *lmc = device->port_data[port_num].cache.lmc; - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return ret; } @@ -1166,9 +1166,9 @@ int ib_get_cached_port_state(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - read_lock_irqsave(&device->cache.lock, flags); + read_lock_irqsave(&device->cache_lock, flags); *port_state = device->port_data[port_num].cache.port_state; - read_unlock_irqrestore(&device->cache.lock, flags); + read_unlock_irqrestore(&device->cache_lock, flags); return ret; } @@ -1428,7 +1428,7 @@ ib_cache_update(struct ib_device *device, u8 port, bool enforce_security) } } - write_lock_irq(&device->cache.lock); + write_lock_irq(&device->cache_lock); old_pkey_cache = device->port_data[port].cache.pkey; @@ -1437,7 +1437,7 @@ ib_cache_update(struct ib_device *device, u8 port, bool enforce_security) device->port_data[port].cache.port_state = tprops->state; device->port_data[port].cache.subnet_prefix = tprops->subnet_prefix; - write_unlock_irq(&device->cache.lock); + write_unlock_irq(&device->cache_lock); if (enforce_security) ib_security_cache_change(device, @@ -1495,7 +1495,7 @@ int ib_cache_setup_one(struct ib_device *device) unsigned int p; int err; - rwlock_init(&device->cache.lock); + rwlock_init(&device->cache_lock); err = gid_table_setup_one(device); if (err) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 6604115f7c85..d78abb616096 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2146,10 +2146,6 @@ struct ib_port_cache { enum ib_port_state port_state; }; -struct ib_cache { - rwlock_t lock; -}; - struct ib_port_immutable { int pkey_tbl_len; int gid_tbl_len; @@ -2609,7 +2605,8 @@ struct ib_device { struct xarray client_data; struct mutex unregistration_lock; - struct ib_cache cache; + /* Synchronize GID, Pkey cache entries, subnet prefix, LMC */ + rwlock_t cache_lock; /** * port_data is indexed by port number */ -- 2.20.1