From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id A6DEB1B2E7; Mon, 6 Nov 2017 19:48:35 +0100 (CET) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP; 06 Nov 2017 10:48:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,353,1505804400"; d="scan'208";a="918191414" Received: from silpixa00372839.ir.intel.com (HELO silpixa00372839.ger.corp.intel.com) ([10.237.222.154]) by FMSMGA003.fm.intel.com with ESMTP; 06 Nov 2017 10:48:19 -0800 From: Ferruh Yigit To: Thomas Monjalon Cc: dev@dpdk.org, Ferruh Yigit , stable@dpdk.org, Jianfeng Tan , Jingjing Wu , Shijith Thotton , Gregory Etelson , Harish Patil , George Prekas , Sergio Gonzalez Monroy , Rasesh Mody , Lee Roberts , Stephen Hemminger Date: Mon, 6 Nov 2017 18:48:15 +0000 Message-Id: <20171106184815.9953-1-ferruh.yigit@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20171103223822.28852-1-ferruh.yigit@intel.com> References: <20171103223822.28852-1-ferruh.yigit@intel.com> Subject: [dpdk-dev] [PATCH v2] igb_uio: prevent reset for a list of devices X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Nov 2017 18:48:36 -0000 Some devices are having problem on device reset that happens during DPDK application exit [1]. Create a static list of devices and exclude them from device reset. [1] http://dpdk.org/ml/archives/dev/2017-November/080927.html Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file") Cc: stable@dpdk.org Signed-off-by: Ferruh Yigit --- Cc: Jianfeng Tan Cc: Jingjing Wu Cc: Shijith Thotton Cc: Gregory Etelson Cc: Harish Patil Cc: George Prekas Cc: Sergio Gonzalez Monroy Cc: Rasesh Mody Cc: Lee Roberts Cc: Stephen Hemminger This is alternative approach to http://dpdk.org/dev/patchwork/patch/31144/ v2: * more concise function, no change in functionality --- lib/librte_eal/linuxapp/igb_uio/compat.h | 19 ++++++++++++++++++- lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 8 +++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/lib/librte_eal/linuxapp/igb_uio/compat.h b/lib/librte_eal/linuxapp/igb_uio/compat.h index 30508f35c..5d7223124 100644 --- a/lib/librte_eal/linuxapp/igb_uio/compat.h +++ b/lib/librte_eal/linuxapp/igb_uio/compat.h @@ -133,4 +133,21 @@ static bool pci_check_and_mask_intx(struct pci_dev *pdev) #define HAVE_PCI_MSI_MASK_IRQ 1 #endif - +#define BROADCOM_PCI_VENDOR_ID 0x14E4 +static const struct pci_device_id no_reset_pci_tbl[] = { + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168a) }, /* 57800 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x164f) }, /* 57711 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168e) }, /* 57810 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163d) }, /* 57811 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168d) }, /* 57840_OBS */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a1) }, /* 57840_4_10 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a2) }, /* 57840_2_20 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16ae) }, /* 57810_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163e) }, /* 57811_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a4) }, /* 57840_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a9) }, /* 57800_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16af) }, /* 57810_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163f) }, /* 57811_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16ad) }, /* 57840_VF */ + { 0 }, +}; diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c index fd320d87d..037e02267 100644 --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c @@ -348,6 +348,11 @@ igbuio_pci_open(struct uio_info *info, struct inode *inode) return 0; } +static bool is_device_excluded_from_reset(struct pci_dev *pdev) +{ + return !!pci_match_id(no_reset_pci_tbl, pdev); +} + static int igbuio_pci_release(struct uio_info *info, struct inode *inode) { @@ -360,7 +365,8 @@ igbuio_pci_release(struct uio_info *info, struct inode *inode) /* stop the device from further DMA */ pci_clear_master(dev); - pci_reset_function(dev); + if (!is_device_excluded_from_reset(dev)) + pci_reset_function(dev); return 0; } -- 2.13.6