From patchwork Mon Mar 29 08:52:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 12169811 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 ADE74C433ED for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9C9F961935 for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234118AbhC2Iyy (ORCPT ); Mon, 29 Mar 2021 04:54:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:44352 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236019AbhC2Iwb (ORCPT ); Mon, 29 Mar 2021 04:52:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DE54961879; Mon, 29 Mar 2021 08:52:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617007951; bh=BJZeUY+q7qbna2guyT/0bs9MCyIHO+8bIlDqf5xYcqI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NT6E5jbOD6Hy/huwpGM6A9FdNUAgKuVvuWdw1Fg24R7DIHtVuYXYAHoc0ii/pbAal khugwLfZYdHKeATNrssxbWV9AzbwCjLO595AIrLSakVszm6VORyO0hPUtTW4nY9A22 lyfllMFFRxI2Fw8xeAv7tPLLYtHHvgjZ3EN33DeThaGfv3ZS4WRsFbZ87/UrkdOJ1x Hzqign5nmcv8xN4KK5f+xRjOov0xf0oCi9W52+/aWKnpz9qrC50POonjfMJ+pztf0i S+P8i1zwsycFNvBAwrm4hmA0SdrzQt5WG/ia7mODEGupLuy3jspGZ5uz8ZMhpyUwP0 CeyJ9V2Srd+lA== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , "David S. Miller" , Devesh Sharma , Jakub Kicinski , linux-rdma@vger.kernel.org, Michael Chan , Naresh Kumar PBS , netdev@vger.kernel.org, Selvin Xavier , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH rdma-next v1 1/5] RDMA/bnxt_re: Depend on bnxt ethernet driver and not blindly select it Date: Mon, 29 Mar 2021 11:52:08 +0300 Message-Id: <20210329085212.257771-2-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210329085212.257771-1-leon@kernel.org> References: <20210329085212.257771-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky The "select" kconfig keyword provides reverse dependency, however it doesn't check that selected symbol meets its own dependencies. Usually "select" is used for non-visible symbols, so instead of trying to keep dependencies in sync with BNXT ethernet driver, simply "depends on" it, like Kconfig documentation suggest. * CONFIG_PCI is already required by BNXT * CONFIG_NETDEVICES and CONFIG_ETHERNET are needed to chose BNXT Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/bnxt_re/Kconfig | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/Kconfig b/drivers/infiniband/hw/bnxt_re/Kconfig index 0feac5132ce1..6a17f5cdb020 100644 --- a/drivers/infiniband/hw/bnxt_re/Kconfig +++ b/drivers/infiniband/hw/bnxt_re/Kconfig @@ -2,9 +2,7 @@ config INFINIBAND_BNXT_RE tristate "Broadcom Netxtreme HCA support" depends on 64BIT - depends on ETHERNET && NETDEVICES && PCI && INET && DCB - select NET_VENDOR_BROADCOM - select BNXT + depends on INET && DCB && BNXT help This driver supports Broadcom NetXtreme-E 10/25/40/50 gigabit RoCE HCAs. To compile this driver as a module, choose M here: From patchwork Mon Mar 29 08:52:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 12169805 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 A196FC433EB for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88C8361930 for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233919AbhC2Iyx (ORCPT ); Mon, 29 Mar 2021 04:54:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:44290 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235965AbhC2IwZ (ORCPT ); Mon, 29 Mar 2021 04:52:25 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 41EA960234; Mon, 29 Mar 2021 08:52:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617007944; bh=Hlopmtsyvj627ObnwAtg6OK1EI2+m3QH4PNmFvmzOEk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ge+fha9gZEttMCR9Vvgm9HoOX6KalFNLKLs5E/HZ5RgvS4cd0Q8Kbe2AkQT3bKSBQ 1p5FcYcqgETfLsiUXl5YRVq1anHCj1pJFciZr8LaCmewEfi3eydO6nfsQKK25yQ1hB 8YBG378Rsi7Zfwr8lDtv1RANdrEpJF4aQZ6YY4sSl4RAxeHi2koz9NOSaiuJGftdsN zu8Aj8kU3i5VMe98hdBBqOiSS0G8ocGD6uPzt30ZaAnO6wOrqsvOQzABzM0a32JgXY WHT/YmO/gObiDLWTZXtwERQLBAgeZ1039Op3SxxOKoP5XAqkIW36+yY/MQyW7LbgLY S6837mhlVGDNQ== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , "David S. Miller" , Devesh Sharma , Jakub Kicinski , linux-rdma@vger.kernel.org, Michael Chan , Naresh Kumar PBS , netdev@vger.kernel.org, Selvin Xavier , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH rdma-next v1 2/5] RDMA/bnxt_re: Create direct symbolic link between bnxt modules Date: Mon, 29 Mar 2021 11:52:09 +0300 Message-Id: <20210329085212.257771-3-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210329085212.257771-1-leon@kernel.org> References: <20210329085212.257771-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky Convert indirect probe call to its direct equivalent to create symbols link between RDMA and netdev modules. This will give us an ability to remove custom module reference counting that doesn't belong to the driver. Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/bnxt_re/main.c | 7 +------ drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 -- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 - drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 1 + 4 files changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index b30d37f0bad2..140c54ee5916 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -610,15 +610,10 @@ static void bnxt_re_dev_unprobe(struct net_device *netdev, static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) { - struct bnxt *bp = netdev_priv(netdev); struct bnxt_en_dev *en_dev; struct pci_dev *pdev; - /* Call bnxt_en's RoCE probe via indirect API */ - if (!bp->ulp_probe) - return ERR_PTR(-EINVAL); - - en_dev = bp->ulp_probe(netdev); + en_dev = bnxt_ulp_probe(netdev); if (IS_ERR(en_dev)) return en_dev; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index a680fd9c68ea..3f0e4bde5dc9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -12859,8 +12859,6 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!BNXT_CHIP_P4_PLUS(bp)) bp->flags |= BNXT_FLAG_DOUBLE_DB; - bp->ulp_probe = bnxt_ulp_probe; - rc = bnxt_init_mac_addr(bp); if (rc) { dev_err(&pdev->dev, "Unable to initialize mac address.\n"); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 1259e68cba2a..eb0314d7a9b1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1745,7 +1745,6 @@ struct bnxt { (BNXT_CHIP_P4(bp) || BNXT_CHIP_P5(bp)) struct bnxt_en_dev *edev; - struct bnxt_en_dev * (*ulp_probe)(struct net_device *); struct bnxt_napi **bnapi; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 64dbbb04b043..a918e374f3c5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -491,3 +491,4 @@ struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) } return bp->edev; } +EXPORT_SYMBOL(bnxt_ulp_probe); From patchwork Mon Mar 29 08:52:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 12169807 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 8DA87C433EC for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7AED661581 for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234020AbhC2Iyx (ORCPT ); Mon, 29 Mar 2021 04:54:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:44324 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235988AbhC2Iw2 (ORCPT ); Mon, 29 Mar 2021 04:52:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9387F60234; Mon, 29 Mar 2021 08:52:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617007948; bh=qqgym3ZImLzrZ/bfAC2kk5LAa27jppiee5uZ74LdJAc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MbOIWAPOzdgWwFFrStVTMsEdv1MyGVn0/f9DMjvGfFIoy0H2JlprpWu+19Zkem+Fu 5jsp4ZCCB18xJvV4WS+WNuZhDH6Xc2Z1ktwHVsXFOcLEmpvdNn7+nIR5vIBh63Vv7C 9D26Ires4KSA2aiSr+MfhyG+/BZtZ6QcxasduV3szhjZb9OvWAU8ZcQAQ4zQu6sVdF kRIIszz7pMQZG7LsKjcvznQnMz/clspgmWF9jdPddFuvFGq75Igc3B/BTZfNdX9RMb tPEWXSguGAvHEVlyQ7VEZn3veWv79ldbiqDPA7EnqpT5VwPY3g1KHm8MrsjBtOZru6 1b+YiPGMqd2/w== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , "David S. Miller" , Devesh Sharma , Jakub Kicinski , linux-rdma@vger.kernel.org, Michael Chan , Naresh Kumar PBS , netdev@vger.kernel.org, Selvin Xavier , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH rdma-next v1 3/5] RDMA/bnxt_re: Get rid of custom module reference counting Date: Mon, 29 Mar 2021 11:52:10 +0300 Message-Id: <20210329085212.257771-4-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210329085212.257771-1-leon@kernel.org> References: <20210329085212.257771-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky Instead of manually messing with parent driver module reference counting rely on export symbol mechanism to ensure that proper probe/remove chain is performed. Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/bnxt_re/main.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 140c54ee5916..8bfbf0231a9e 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -601,13 +601,6 @@ static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev) return container_of(ibdev, struct bnxt_re_dev, ibdev); } -static void bnxt_re_dev_unprobe(struct net_device *netdev, - struct bnxt_en_dev *en_dev) -{ - dev_put(netdev); - module_put(en_dev->pdev->driver->driver.owner); -} - static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) { struct bnxt_en_dev *en_dev; @@ -628,10 +621,6 @@ static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) return ERR_PTR(-ENODEV); } - /* Bump net device reference count */ - if (!try_module_get(pdev->driver->driver.owner)) - return ERR_PTR(-ENODEV); - dev_hold(netdev); return en_dev; @@ -1558,13 +1547,12 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode) static void bnxt_re_dev_unreg(struct bnxt_re_dev *rdev) { - struct bnxt_en_dev *en_dev = rdev->en_dev; struct net_device *netdev = rdev->netdev; bnxt_re_dev_remove(rdev); if (netdev) - bnxt_re_dev_unprobe(netdev, en_dev); + dev_put(netdev); } static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev) @@ -1586,7 +1574,7 @@ static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev) *rdev = bnxt_re_dev_add(netdev, en_dev); if (!*rdev) { rc = -ENOMEM; - bnxt_re_dev_unprobe(netdev, en_dev); + dev_put(netdev); goto exit; } exit: From patchwork Mon Mar 29 08:52:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 12169813 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=-14.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 6B18EC433F8 for ; Mon, 29 Mar 2021 08:55:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3AB0E61879 for ; Mon, 29 Mar 2021 08:55:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234621AbhC2Iy5 (ORCPT ); Mon, 29 Mar 2021 04:54:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:44404 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236056AbhC2Iwi (ORCPT ); Mon, 29 Mar 2021 04:52:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A43B660234; Mon, 29 Mar 2021 08:52:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617007958; bh=Hnb+Jnz1poSH0a5RbG+IUqsrLSg/l0/xCTo4B0ubqAE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pra+0fnVo0T3Nntj2I3izzKxwtQPfwny5MXtkYlwKRWMf9hzfTDadFJGQWq8deWok wF7FIwP7URpzCSrnyO3vAopB/3WcBjjAiSbmqCnzSBduCQMG5rcxdhB2iwKzWxCYHF B3c+CfOgW+rbzRxKwr37dNV2GybJ3+9TN+HfRCNP8xGPPfqYHarvq6iGBlKLKcFv8l Ua7O2Ejp9WDHeOTwNm+HNWk6okNEOJvhg94DaXUgIe2Maot7trbceZt0jYs/cihSdN SRID9ILPvwmmPr8G9LUIzdZNh91VmwgqMJ/elonRcbSPu7NeyldgAwOD1biNXO4XwF g/fm0nkZPkMhg== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , "David S. Miller" , Devesh Sharma , Jakub Kicinski , linux-rdma@vger.kernel.org, Michael Chan , Naresh Kumar PBS , netdev@vger.kernel.org, Selvin Xavier , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH rdma-next v1 4/5] net/bnxt: Remove useless check of non-existent ULP id Date: Mon, 29 Mar 2021 11:52:11 +0300 Message-Id: <20210329085212.257771-5-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210329085212.257771-1-leon@kernel.org> References: <20210329085212.257771-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky There is no other bnxt ULP driver in the upstream and all checks for the ULP id are useless, so remove them and convert double array table to proper pointer structure. --- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 189 +++++++----------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 6 +- 2 files changed, 73 insertions(+), 122 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index a918e374f3c5..f7af900afaed 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -29,34 +29,26 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id, { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); + unsigned int max_stat_ctxs; struct bnxt_ulp *ulp; ASSERT_RTNL(); - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; - ulp = &edev->ulp_tbl[ulp_id]; - if (rcu_access_pointer(ulp->ulp_ops)) { - netdev_err(bp->dev, "ulp id %d already registered\n", ulp_id); - return -EBUSY; - } - if (ulp_id == BNXT_ROCE_ULP) { - unsigned int max_stat_ctxs; + max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp); + if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS || + bp->cp_nr_rings == max_stat_ctxs) + return -ENOMEM; - max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp); - if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS || - bp->cp_nr_rings == max_stat_ctxs) - return -ENOMEM; - } + ulp = kzalloc(sizeof(*ulp), GFP_KERNEL); + if (!ulp) + return -ENOMEM; - atomic_set(&ulp->ref_count, 0); + edev->ulp_tbl = ulp; ulp->handle = handle; rcu_assign_pointer(ulp->ulp_ops, ulp_ops); - if (ulp_id == BNXT_ROCE_ULP) { - if (test_bit(BNXT_STATE_OPEN, &bp->state)) - bnxt_hwrm_vnic_cfg(bp, 0); - } + if (test_bit(BNXT_STATE_OPEN, &bp->state)) + bnxt_hwrm_vnic_cfg(bp, 0); return 0; } @@ -69,15 +61,9 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id) int i = 0; ASSERT_RTNL(); - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; - ulp = &edev->ulp_tbl[ulp_id]; - if (!rcu_access_pointer(ulp->ulp_ops)) { - netdev_err(bp->dev, "ulp id %d not registered\n", ulp_id); - return -EINVAL; - } - if (ulp_id == BNXT_ROCE_ULP && ulp->msix_requested) + ulp = edev->ulp_tbl; + if (ulp->msix_requested) edev->en_ops->bnxt_free_msix(edev, ulp_id); if (ulp->max_async_event_id) @@ -91,6 +77,8 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id) msleep(100); i++; } + kfree(ulp); + edev->ulp_tbl = NULL; return 0; } @@ -99,8 +87,8 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) struct bnxt_en_dev *edev = bp->edev; int num_msix, idx, i; - num_msix = edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested; - idx = edev->ulp_tbl[BNXT_ROCE_ULP].msix_base; + num_msix = edev->ulp_tbl->msix_requested; + idx = edev->ulp_tbl->msix_base; for (i = 0; i < num_msix; i++) { ent[i].vector = bp->irq_tbl[idx + i].vector; ent[i].ring_idx = idx + i; @@ -126,13 +114,11 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, int rc = 0; ASSERT_RTNL(); - if (ulp_id != BNXT_ROCE_ULP) - return -EINVAL; if (!(bp->flags & BNXT_FLAG_USING_MSIX)) return -ENODEV; - if (edev->ulp_tbl[ulp_id].msix_requested) + if (edev->ulp_tbl->msix_requested) return -EAGAIN; max_cp_rings = bnxt_get_max_func_cp_rings(bp); @@ -148,8 +134,8 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, max_idx = min_t(int, bp->total_irqs, max_cp_rings); idx = max_idx - avail_msix; } - edev->ulp_tbl[ulp_id].msix_base = idx; - edev->ulp_tbl[ulp_id].msix_requested = avail_msix; + edev->ulp_tbl->msix_base = idx; + edev->ulp_tbl->msix_requested = avail_msix; hw_resc = &bp->hw_resc; total_vecs = idx + avail_msix; if (bp->total_irqs < total_vecs || @@ -162,7 +148,7 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, } } if (rc) { - edev->ulp_tbl[ulp_id].msix_requested = 0; + edev->ulp_tbl->msix_requested = 0; return -EAGAIN; } @@ -171,7 +157,7 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, resv_msix = hw_resc->resv_irqs - bp->cp_nr_rings; avail_msix = min_t(int, resv_msix, avail_msix); - edev->ulp_tbl[ulp_id].msix_requested = avail_msix; + edev->ulp_tbl->msix_requested = avail_msix; } bnxt_fill_msix_vecs(bp, ent); edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED; @@ -184,13 +170,11 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) struct bnxt *bp = netdev_priv(dev); ASSERT_RTNL(); - if (ulp_id != BNXT_ROCE_ULP) - return -EINVAL; if (!(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return 0; - edev->ulp_tbl[ulp_id].msix_requested = 0; + edev->ulp_tbl->msix_requested = 0; edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED; if (netif_running(dev) && !(edev->flags & BNXT_EN_FLAG_ULP_STOPPED)) { bnxt_close_nic(bp, true, false); @@ -204,7 +188,7 @@ int bnxt_get_ulp_msix_num(struct bnxt *bp) if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { struct bnxt_en_dev *edev = bp->edev; - return edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested; + return edev->ulp_tbl->msix_requested; } return 0; } @@ -214,8 +198,8 @@ int bnxt_get_ulp_msix_base(struct bnxt *bp) if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { struct bnxt_en_dev *edev = bp->edev; - if (edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested) - return edev->ulp_tbl[BNXT_ROCE_ULP].msix_base; + if (edev->ulp_tbl->msix_requested) + return edev->ulp_tbl->msix_base; } return 0; } @@ -225,7 +209,7 @@ int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { struct bnxt_en_dev *edev = bp->edev; - if (edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested) + if (edev->ulp_tbl->msix_requested) return BNXT_MIN_ROCE_STAT_CTXS; } @@ -240,9 +224,6 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id, struct input *req; int rc; - if (ulp_id != BNXT_ROCE_ULP && bp->fw_reset_state) - return -EBUSY; - mutex_lock(&bp->hwrm_cmd_lock); req = fw_msg->msg; req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr); @@ -275,27 +256,25 @@ void bnxt_ulp_stop(struct bnxt *bp) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; edev->flags |= BNXT_EN_FLAG_ULP_STOPPED; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; + ulp = edev->ulp_tbl; - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_stop) - continue; - ops->ulp_stop(ulp->handle); - } + ops = rtnl_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_stop) + return; + ops->ulp_stop(ulp->handle); } void bnxt_ulp_start(struct bnxt *bp, int err) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; @@ -305,58 +284,53 @@ void bnxt_ulp_start(struct bnxt *bp, int err) if (err) return; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; + ulp = edev->ulp_tbl; - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_start) - continue; - ops->ulp_start(ulp->handle); - } + ops = rtnl_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_start) + return; + ops->ulp_start(ulp->handle); } void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; + ulp = edev->ulp_tbl; - rcu_read_lock(); - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_sriov_config) { - rcu_read_unlock(); - continue; - } - bnxt_ulp_get(ulp); + rcu_read_lock(); + ops = rcu_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_sriov_config) { rcu_read_unlock(); - ops->ulp_sriov_config(ulp->handle, num_vfs); - bnxt_ulp_put(ulp); + return; } + bnxt_ulp_get(ulp); + rcu_read_unlock(); + ops->ulp_sriov_config(ulp->handle, num_vfs); + bnxt_ulp_put(ulp); } void bnxt_ulp_shutdown(struct bnxt *bp) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; + ulp = edev->ulp_tbl; - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_shutdown) - continue; - ops->ulp_shutdown(ulp->handle); - } + ops = rtnl_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_shutdown) + return; + + ops->ulp_shutdown(ulp->handle); } void bnxt_ulp_irq_stop(struct bnxt *bp) @@ -368,7 +342,7 @@ void bnxt_ulp_irq_stop(struct bnxt *bp) return; if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[BNXT_ROCE_ULP]; + struct bnxt_ulp *ulp = edev->ulp_tbl; if (!ulp->msix_requested) return; @@ -389,7 +363,7 @@ void bnxt_ulp_irq_restart(struct bnxt *bp, int err) return; if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[BNXT_ROCE_ULP]; + struct bnxt_ulp *ulp = edev->ulp_tbl; struct bnxt_msix_entry *ent = NULL; if (!ulp->msix_requested) @@ -416,47 +390,27 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) u16 event_id = le16_to_cpu(cmpl->event_id); struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; rcu_read_lock(); - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_async_notifier) - continue; - if (!ulp->async_events_bmap || - event_id > ulp->max_async_event_id) - continue; - - /* Read max_async_event_id first before testing the bitmap. */ - smp_rmb(); - if (test_bit(event_id, ulp->async_events_bmap)) - ops->ulp_async_notifier(ulp->handle, cmpl); - } - rcu_read_unlock(); -} + ulp = edev->ulp_tbl; -static int bnxt_register_async_events(struct bnxt_en_dev *edev, int ulp_id, - unsigned long *events_bmap, u16 max_id) -{ - struct net_device *dev = edev->net; - struct bnxt *bp = netdev_priv(dev); - struct bnxt_ulp *ulp; + ops = rcu_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_async_notifier) + goto out; + if (!ulp->async_events_bmap || event_id > ulp->max_async_event_id) + goto out; - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; + /* Read max_async_event_id first before testing the bitmap. */ + smp_rmb(); + if (test_bit(event_id, ulp->async_events_bmap)) + ops->ulp_async_notifier(ulp->handle, cmpl); - ulp = &edev->ulp_tbl[ulp_id]; - ulp->async_events_bmap = events_bmap; - /* Make sure bnxt_ulp_async_events() sees this order */ - smp_wmb(); - ulp->max_async_event_id = max_id; - bnxt_hwrm_func_drv_rgtr(bp, events_bmap, max_id + 1, true); - return 0; +out: + rcu_read_unlock(); } static const struct bnxt_en_ops bnxt_en_ops_tbl = { @@ -465,7 +419,6 @@ static const struct bnxt_en_ops bnxt_en_ops_tbl = { .bnxt_request_msix = bnxt_req_msix_vecs, .bnxt_free_msix = bnxt_free_msix_vecs, .bnxt_send_fw_msg = bnxt_send_msg, - .bnxt_register_fw_async_events = bnxt_register_async_events, }; struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 6b4d2556a6df..3caee7c2f8c9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -66,7 +66,7 @@ struct bnxt_en_dev { #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 const struct bnxt_en_ops *en_ops; - struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP]; + struct bnxt_ulp *ulp_tbl; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 * driver. @@ -86,13 +86,11 @@ struct bnxt_en_ops { int (*bnxt_free_msix)(struct bnxt_en_dev *, int); int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, int, struct bnxt_fw_msg *); - int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, int, - unsigned long *, u16); }; static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) { - if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops)) + if (edev && edev->ulp_tbl) return true; return false; } From patchwork Mon Mar 29 08:52:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 12169809 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 EBA72C433F1 for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA7AD61581 for ; Mon, 29 Mar 2021 08:55:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234278AbhC2Iyz (ORCPT ); Mon, 29 Mar 2021 04:54:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:44374 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236039AbhC2Iwf (ORCPT ); Mon, 29 Mar 2021 04:52:35 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4A64D60234; Mon, 29 Mar 2021 08:52:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617007955; bh=Z5OKzme76ghaNaepRIQFE57KWlPU7Rs31k/32j5e6d0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NXCKKQ52LBdTIJO9rwCThaYJRAT7ufx+gxMae8I0FycSTwNg4cQMqSQoDucsCXRmZ WC7HX3DNjOivJOJ8R8sF/8QvnXLZQeTQjb25Iu307xe3185PYfO+CtJFgX7DYGLlKK D/PdVB6h5qnJSL/K+6chzORcqzemdT3Cyn6QRT3Q7xO9J8zuc4+hrvk1ZYQrGv19kE k8hvMVSpv5L7hXFx54NLUic3ltTlWASh51VA1FZDssTJSAZhuMoJscbdugH4sIbrSU XbTgsUNUgEgFFyihWyhdx0ua3tJrlfgDBIzQPVNN1LgCNmT3fK1mZW0rq0FfAnhxi2 12ENWJvFQQmBA== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , "David S. Miller" , Devesh Sharma , Jakub Kicinski , linux-rdma@vger.kernel.org, Michael Chan , Naresh Kumar PBS , netdev@vger.kernel.org, Selvin Xavier , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH rdma-next v1 5/5] net/bnxt: Use direct API instead of useless indirection Date: Mon, 29 Mar 2021 11:52:12 +0300 Message-Id: <20210329085212.257771-6-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210329085212.257771-1-leon@kernel.org> References: <20210329085212.257771-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky There is no need in any indirection complexity for one ULP user, remove all this complexity in favour of direct calls to the exported symbols. This allows us to greatly simplify the code. Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/bnxt_re/main.c | 70 ++++--------------- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 70 +++++++------------ drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 26 +++---- 4 files changed, 50 insertions(+), 118 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 8bfbf0231a9e..b3f8fe8314a8 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -351,24 +351,6 @@ static struct bnxt_ulp_ops bnxt_re_ulp_ops = { /* RoCE -> Net driver */ -/* Driver registration routines used to let the networking driver (bnxt_en) - * to know that the RoCE driver is now installed - */ -static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev) -{ - struct bnxt_en_dev *en_dev; - int rc; - - if (!rdev) - return -EINVAL; - - en_dev = rdev->en_dev; - - rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev, - BNXT_ROCE_ULP); - return rc; -} - static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) { struct bnxt_en_dev *en_dev; @@ -379,28 +361,11 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_register_device(en_dev, BNXT_ROCE_ULP, - &bnxt_re_ulp_ops, rdev); + rc = bnxt_register_dev(en_dev, &bnxt_re_ulp_ops, rdev); rdev->qplib_res.pdev = rdev->en_dev->pdev; return rc; } -static int bnxt_re_free_msix(struct bnxt_re_dev *rdev) -{ - struct bnxt_en_dev *en_dev; - int rc; - - if (!rdev) - return -EINVAL; - - en_dev = rdev->en_dev; - - - rc = en_dev->en_ops->bnxt_free_msix(rdev->en_dev, BNXT_ROCE_ULP); - - return rc; -} - static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) { int rc = 0, num_msix_want = BNXT_RE_MAX_MSIX, num_msix_got; @@ -413,9 +378,8 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus()); - num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, BNXT_ROCE_ULP, - rdev->msix_entries, - num_msix_want); + num_msix_got = + bnxt_req_msix_vecs(en_dev, rdev->msix_entries, num_msix_want); if (num_msix_got < BNXT_RE_MIN_MSIX) { rc = -EINVAL; goto done; @@ -471,7 +435,7 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, req.ring_id = cpu_to_le16(fw_ring_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW ring:%d :%#x", req.ring_id, rc); @@ -508,7 +472,7 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, req.int_mode = ring_attr->mode; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (!rc) *fw_ring_id = le16_to_cpu(resp.ring_id); @@ -535,7 +499,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&req, sizeof(req), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW stats context %#x", rc); @@ -567,7 +531,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (!rc) *fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id); @@ -1119,7 +1083,7 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) return rc; @@ -1302,7 +1266,7 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev) req.hwrm_intf_upd = HWRM_VERSION_UPDATE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) { ibdev_err(&rdev->ibdev, "Failed to query HW version, rc = 0x%x", rc); @@ -1365,20 +1329,12 @@ static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev) bnxt_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id, type); bnxt_qplib_free_rcfw_channel(&rdev->rcfw); } - if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) { - rc = bnxt_re_free_msix(rdev); - if (rc) - ibdev_warn(&rdev->ibdev, - "Failed to free MSI-X vectors: %#x", rc); - } + if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) + bnxt_free_msix_vecs(rdev->en_dev); bnxt_re_destroy_chip_ctx(rdev); - if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) { - rc = bnxt_re_unregister_netdev(rdev); - if (rc) - ibdev_warn(&rdev->ibdev, - "Failed to unregister with netdev: %#x", rc); - } + if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) + bnxt_unregister_dev(rdev->en_dev); } /* worker thread for polling periodic events. Now used for QoS programming*/ diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 3f0e4bde5dc9..aafee562e782 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5346,7 +5346,7 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id) #endif if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); - if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) + if (!vnic_id && bnxt_ulp_registered(bp->edev)) req.flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp)); return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index f7af900afaed..6aefb348cf44 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -24,8 +24,8 @@ #include "bnxt.h" #include "bnxt_ulp.h" -static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id, - struct bnxt_ulp_ops *ulp_ops, void *handle) +int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, + void *handle) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -45,15 +45,16 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id, edev->ulp_tbl = ulp; ulp->handle = handle; - rcu_assign_pointer(ulp->ulp_ops, ulp_ops); + ulp->ulp_ops = ulp_ops; if (test_bit(BNXT_STATE_OPEN, &bp->state)) bnxt_hwrm_vnic_cfg(bp, 0); return 0; } +EXPORT_SYMBOL(bnxt_register_dev); -static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id) +void bnxt_unregister_dev(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -64,13 +65,11 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id) ulp = edev->ulp_tbl; if (ulp->msix_requested) - edev->en_ops->bnxt_free_msix(edev, ulp_id); + bnxt_free_msix_vecs(edev); if (ulp->max_async_event_id) bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, true); - RCU_INIT_POINTER(ulp->ulp_ops, NULL); - synchronize_rcu(); ulp->max_async_event_id = 0; ulp->async_events_bmap = NULL; while (atomic_read(&ulp->ref_count) != 0 && i < 10) { @@ -79,8 +78,8 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id) } kfree(ulp); edev->ulp_tbl = NULL; - return 0; } +EXPORT_SYMBOL(bnxt_unregister_dev); static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) { @@ -102,8 +101,8 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) } } -static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, - struct bnxt_msix_entry *ent, int num_msix) +int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, struct bnxt_msix_entry *ent, + int num_msix) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -163,8 +162,9 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED; return avail_msix; } +EXPORT_SYMBOL(bnxt_req_msix_vecs); -static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) +void bnxt_free_msix_vecs(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -172,7 +172,7 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) ASSERT_RTNL(); if (!(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) - return 0; + return; edev->ulp_tbl->msix_requested = 0; edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED; @@ -180,12 +180,12 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) bnxt_close_nic(bp, true, false); bnxt_open_nic(bp, true, false); } - return 0; } +EXPORT_SYMBOL(bnxt_free_msix_vecs); int bnxt_get_ulp_msix_num(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; return edev->ulp_tbl->msix_requested; @@ -195,7 +195,7 @@ int bnxt_get_ulp_msix_num(struct bnxt *bp) int bnxt_get_ulp_msix_base(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; if (edev->ulp_tbl->msix_requested) @@ -206,7 +206,7 @@ int bnxt_get_ulp_msix_base(struct bnxt *bp) int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; if (edev->ulp_tbl->msix_requested) @@ -216,8 +216,7 @@ int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) return 0; } -static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id, - struct bnxt_fw_msg *fw_msg) +int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -241,6 +240,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id, mutex_unlock(&bp->hwrm_cmd_lock); return rc; } +EXPORT_SYMBOL(bnxt_send_msg); static void bnxt_ulp_get(struct bnxt_ulp *ulp) { @@ -303,14 +303,11 @@ void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) ulp = edev->ulp_tbl; - rcu_read_lock(); - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_sriov_config) { - rcu_read_unlock(); + ops = ulp->ulp_ops; + if (!ops || !ops->ulp_sriov_config) return; - } + bnxt_ulp_get(ulp); - rcu_read_unlock(); ops->ulp_sriov_config(ulp->handle, num_vfs); bnxt_ulp_put(ulp); } @@ -341,7 +338,7 @@ void bnxt_ulp_irq_stop(struct bnxt *bp) if (!edev || !(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return; - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_ulp *ulp = edev->ulp_tbl; if (!ulp->msix_requested) @@ -362,7 +359,7 @@ void bnxt_ulp_irq_restart(struct bnxt *bp, int err) if (!edev || !(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return; - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_ulp *ulp = edev->ulp_tbl; struct bnxt_msix_entry *ent = NULL; @@ -395,32 +392,20 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) if (!edev) return; - rcu_read_lock(); ulp = edev->ulp_tbl; - - ops = rcu_dereference(ulp->ulp_ops); + ops = ulp->ulp_ops; if (!ops || !ops->ulp_async_notifier) - goto out; + return; + if (!ulp->async_events_bmap || event_id > ulp->max_async_event_id) - goto out; + return; /* Read max_async_event_id first before testing the bitmap. */ smp_rmb(); if (test_bit(event_id, ulp->async_events_bmap)) ops->ulp_async_notifier(ulp->handle, cmpl); - -out: - rcu_read_unlock(); } -static const struct bnxt_en_ops bnxt_en_ops_tbl = { - .bnxt_register_device = bnxt_register_dev, - .bnxt_unregister_device = bnxt_unregister_dev, - .bnxt_request_msix = bnxt_req_msix_vecs, - .bnxt_free_msix = bnxt_free_msix_vecs, - .bnxt_send_fw_msg = bnxt_send_msg, -}; - struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); @@ -431,7 +416,6 @@ struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) edev = kzalloc(sizeof(*edev), GFP_KERNEL); if (!edev) return ERR_PTR(-ENOMEM); - edev->en_ops = &bnxt_en_ops_tbl; if (bp->flags & BNXT_FLAG_ROCEV1_CAP) edev->flags |= BNXT_EN_FLAG_ROCEV1_CAP; if (bp->flags & BNXT_FLAG_ROCEV2_CAP) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 3caee7c2f8c9..367f70ab0d3a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -10,10 +10,6 @@ #ifndef BNXT_ULP_H #define BNXT_ULP_H -#define BNXT_ROCE_ULP 0 -#define BNXT_OTHER_ULP 1 -#define BNXT_MAX_ULP 2 - #define BNXT_MIN_ROCE_CP_RINGS 2 #define BNXT_MIN_ROCE_STAT_CTXS 1 @@ -47,7 +43,7 @@ struct bnxt_fw_msg { struct bnxt_ulp { void *handle; - struct bnxt_ulp_ops __rcu *ulp_ops; + struct bnxt_ulp_ops *ulp_ops; unsigned long *async_events_bmap; u16 max_async_event_id; u16 msix_requested; @@ -65,7 +61,6 @@ struct bnxt_en_dev { BNXT_EN_FLAG_ROCEV2_CAP) #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 - const struct bnxt_en_ops *en_ops; struct bnxt_ulp *ulp_tbl; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 @@ -77,18 +72,15 @@ struct bnxt_en_dev { */ }; -struct bnxt_en_ops { - int (*bnxt_register_device)(struct bnxt_en_dev *, int, - struct bnxt_ulp_ops *, void *); - int (*bnxt_unregister_device)(struct bnxt_en_dev *, int); - int (*bnxt_request_msix)(struct bnxt_en_dev *, int, - struct bnxt_msix_entry *, int); - int (*bnxt_free_msix)(struct bnxt_en_dev *, int); - int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, int, - struct bnxt_fw_msg *); -}; +int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, + void *handle); +void bnxt_unregister_dev(struct bnxt_en_dev *edev); +int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, struct bnxt_msix_entry *ent, + int num_msix); +void bnxt_free_msix_vecs(struct bnxt_en_dev *edev); +int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); -static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) +static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) { if (edev && edev->ulp_tbl) return true;