From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0712741FC7 for ; Wed, 30 Aug 2023 03:36:51 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DF1F940277; Wed, 30 Aug 2023 03:36:50 +0200 (CEST) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by mails.dpdk.org (Postfix) with ESMTP id A12AC40276 for ; Wed, 30 Aug 2023 03:36:49 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693359409; x=1724895409; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=eLCYqZFEH7ralqdOdov31C7+KyYEO9IS8c5r2mHvK8I=; b=eCGFqEeFUaQmT7zzQAgV6bjmmZntMPBWGLii6NlnVxN/WMa2OW5k1OhX f27OgJcGxO7RBYqJ7amjEKZjSFbIpYB8Ov0KDGpOi4ifb8WC+S1zcxp5N rBFrmsDftGG46l0EovmgGDXSujO8IJ10GMR2oSTUHBASHEqoBrKfVORFc VnHdDd7/+4c+jDaMv6cpLeW8fApnyt/ciHtDe6VnERiCZqYsO34aZTW9R 54hx5bw6afhdV20FTYtYthiJZW9Hd0R1LmGFleCwc8/duCx0ZIFUe0zHB mRxYMh6nfw1YFVAf95GOsvmQx5TIooLMC8rwtOp28ZlgR3xQsEzkKC2Yf g==; X-IronPort-AV: E=McAfee;i="6600,9927,10817"; a="360523724" X-IronPort-AV: E=Sophos;i="6.02,212,1688454000"; d="scan'208";a="360523724" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 18:36:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10817"; a="715726348" X-IronPort-AV: E=Sophos;i="6.02,212,1688454000"; d="scan'208";a="715726348" Received: from unknown (HELO dut220..) ([10.239.252.220]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 18:36:47 -0700 From: Wenwu Ma To: wenwux.ma@intel.com Cc: stable@dpdk.org Subject: [PATCH v4] bus/pci: fix legacy device IO port map in secondary process Date: Wed, 30 Aug 2023 09:36:36 +0800 Message-Id: <20230830013636.5887-1-wenwux.ma@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org When doing IO port mapping for legacy device in secondary process, the region information is missing, so, we need to refill it. Fixes: 4b741542ecde ("bus/pci: avoid depending on private kernel value") Cc: stable@dpdk.org Signed-off-by: Wenwu Ma --- v4: - adjusting commit log v3: - adjusting variable settings v2: - add release of device in pci_vfio_ioport_unmap --- drivers/bus/pci/linux/pci_vfio.c | 43 ++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c index e634de8322..5ef26c98d1 100644 --- a/drivers/bus/pci/linux/pci_vfio.c +++ b/drivers/bus/pci/linux/pci_vfio.c @@ -1314,6 +1314,27 @@ pci_vfio_ioport_map(struct rte_pci_device *dev, int bar, return -1; } + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + struct vfio_device_info device_info = { .argsz = sizeof(device_info) }; + char pci_addr[PATH_MAX]; + int vfio_dev_fd; + struct rte_pci_addr *loc = &dev->addr; + int ret; + /* store PCI address string */ + snprintf(pci_addr, sizeof(pci_addr), PCI_PRI_FMT, + loc->domain, loc->bus, loc->devid, loc->function); + + ret = rte_vfio_setup_device(rte_pci_get_sysfs_path(), pci_addr, + &vfio_dev_fd, &device_info); + if (ret) + return -1; + + ret = pci_vfio_fill_regions(dev, vfio_dev_fd, &device_info); + if (ret) + return -1; + + } + if (pci_vfio_get_region(dev, bar, &size, &offset) != 0) { RTE_LOG(ERR, EAL, "Cannot get offset of region %d.\n", bar); return -1; @@ -1361,8 +1382,26 @@ pci_vfio_ioport_write(struct rte_pci_ioport *p, int pci_vfio_ioport_unmap(struct rte_pci_ioport *p) { - RTE_SET_USED(p); - return -1; + char pci_addr[PATH_MAX] = {0}; + struct rte_pci_addr *loc = &p->dev->addr; + int ret, vfio_dev_fd; + + /* store PCI address string */ + snprintf(pci_addr, sizeof(pci_addr), PCI_PRI_FMT, + loc->domain, loc->bus, loc->devid, loc->function); + + vfio_dev_fd = rte_intr_dev_fd_get(p->dev->intr_handle); + if (vfio_dev_fd < 0) + return -1; + + ret = rte_vfio_release_device(rte_pci_get_sysfs_path(), pci_addr, + vfio_dev_fd); + if (ret < 0) { + RTE_LOG(ERR, EAL, "Cannot release VFIO device\n"); + return ret; + } + + return 0; } int -- 2.34.1