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 0CF81A00C2 for ; Fri, 17 Jun 2022 05:30:32 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id F3DA440689; Fri, 17 Jun 2022 05:30:31 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mails.dpdk.org (Postfix) with ESMTP id 5B4BC40689 for ; Fri, 17 Jun 2022 05:30:30 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1655436630; x=1686972630; h=from:to:cc:subject:date:message-id; bh=N0kZXzVkRLjawX0i2nV0q/zy3p0HdD+8dTPrsd7F7UE=; b=BZ4xAhOrhvWK/KMw4e7MJNXyYVYOrY3FxYAKdOnse0UarpwVEG48qqTY jmuzFb9gtAt6DfwW7d1zBOzbmbBeJZBZxr9oJPCUv8LCnWDbYPEy4J6q6 kjbT7qyKksxjlc8C5lH5dkFJrQCbjCKNA7xFvX+HpULKFaCvypA7N5l0o vjKTUnu/tE7EQB8olPs7uJNSaFIdnRTlFwPbLekeBnQe/A50QB4uL8cFF jO/1FL0wcSnYnDMVr1BuF6RK3G9QnOg04L0nwf99AnlU7d5uPhAoHw2hO tjwjXzIf6dnQs77Um2adAYBmnv/bCjCOaUgtp6g1hyyqXwT6Ccvo8AAzq w==; X-IronPort-AV: E=McAfee;i="6400,9594,10380"; a="304858519" X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="304858519" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 20:30:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="728180948" Received: from unknown (HELO zj-fpga-amt.sh.intel.com) ([10.238.175.102]) by fmsmga001.fm.intel.com with ESMTP; 16 Jun 2022 20:30:27 -0700 From: Wei Huang To: stable@dpdk.org Cc: rosen.xu@intel.com, tianfei.zhang@intel.com, thomas@monjalon.net, xuemingl@nvidia.com, Wei Huang Subject: [PATCH 20.11] raw/ifpga: remove virtual devices on close Date: Thu, 16 Jun 2022 23:38:21 -0400 Message-Id: <1655437101-10248-1-git-send-email-wei.huang@intel.com> X-Mailer: git-send-email 1.8.3.1 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 [ upstream commit ae835aba40349ee9631ef6b52e68a2893febe7e0 ] Virtual devices created on ifpga raw device will not be removed when ifpga device has closed. To avoid resource leak problem, this patch introduces an ifpga virtual device remove function, virtual devices will be destroyed after the ifpga raw device closed. Fixes: ef1e8ede3da5 ("raw/ifpga: add Intel FPGA bus rawdev driver") Signed-off-by: Wei Huang Acked-by: Tianfei Zhang Reviewed-by: Rosen Xu --- drivers/raw/ifpga/ifpga_rawdev.c | 170 ++++++++++++++++++++++++++++++--------- drivers/raw/ifpga/ifpga_rawdev.h | 8 ++ 2 files changed, 138 insertions(+), 40 deletions(-) diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c index 8e4030d..ee6589a 100644 --- a/drivers/raw/ifpga/ifpga_rawdev.c +++ b/drivers/raw/ifpga/ifpga_rawdev.c @@ -135,6 +135,8 @@ struct ifpga_rawdev * for (i = 0; i < IFPGA_MAX_IRQ; i++) dev->intr_handle[i] = NULL; dev->poll_enabled = 0; + for (i = 0; i < IFPGA_MAX_VDEV; i++) + dev->vdev_name[i] = NULL; return dev; } @@ -737,12 +739,23 @@ static int set_surprise_link_check_aer( static int ifpga_rawdev_close(struct rte_rawdev *dev) { + struct ifpga_rawdev *ifpga_rdev = NULL; struct opae_adapter *adapter; struct opae_manager *mgr; - int ret = 0; + char *vdev_name = NULL; + int i, ret = 0; if (dev) { - ifpga_monitor_stop_func(ifpga_rawdev_get(dev)); + ifpga_rdev = ifpga_rawdev_get(dev); + if (ifpga_rdev) { + for (i = 0; i < IFPGA_MAX_VDEV; i++) { + vdev_name = ifpga_rdev->vdev_name[i]; + if (vdev_name) + rte_vdev_uninit(vdev_name); + } + ifpga_monitor_stop_func(ifpga_rdev); + ifpga_rdev->rawdev = NULL; + } adapter = ifpga_rawdev_get_priv(dev); if (adapter) { mgr = opae_adapter_get_mgr(adapter); @@ -1634,9 +1647,6 @@ static int fme_clean_fme_error(struct opae_manager *mgr) if (ret) IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed"); - if (dev) - dev->rawdev = NULL; - return ret; } @@ -1693,75 +1703,118 @@ static int ifpga_rawdev_get_string_arg(const char *key __rte_unused, return 0; } + static int -ifpga_cfg_probe(struct rte_vdev_device *dev) +ifpga_vdev_parse_devargs(struct rte_devargs *devargs, + struct ifpga_vdev_args *args) { - struct rte_devargs *devargs; - struct rte_kvargs *kvlist = NULL; - struct rte_rawdev *rawdev = NULL; - struct ifpga_rawdev *ifpga_dev; - int port; + struct rte_kvargs *kvlist; char *name = NULL; - char dev_name[RTE_RAWDEV_NAME_MAX_LEN]; - int ret = -1; + int port = 0; + int ret = -EINVAL; - devargs = dev->device.devargs; + if (!devargs || !args) + return ret; kvlist = rte_kvargs_parse(devargs->args, valid_args); if (!kvlist) { - IFPGA_RAWDEV_PMD_LOG(ERR, "error when parsing param"); - goto end; + IFPGA_RAWDEV_PMD_ERR("error when parsing devargs"); + return ret; } if (rte_kvargs_count(kvlist, IFPGA_ARG_NAME) == 1) { if (rte_kvargs_process(kvlist, IFPGA_ARG_NAME, - &ifpga_rawdev_get_string_arg, - &name) < 0) { + &ifpga_rawdev_get_string_arg, &name) < 0) { IFPGA_RAWDEV_PMD_ERR("error to parse %s", - IFPGA_ARG_NAME); + IFPGA_ARG_NAME); goto end; + } else { + strlcpy(args->bdf, name, sizeof(args->bdf)); + rte_free(name); } } else { IFPGA_RAWDEV_PMD_ERR("arg %s is mandatory for ifpga bus", - IFPGA_ARG_NAME); + IFPGA_ARG_NAME); goto end; } if (rte_kvargs_count(kvlist, IFPGA_ARG_PORT) == 1) { - if (rte_kvargs_process(kvlist, - IFPGA_ARG_PORT, - &rte_ifpga_get_integer32_arg, - &port) < 0) { + if (rte_kvargs_process(kvlist, IFPGA_ARG_PORT, + &rte_ifpga_get_integer32_arg, &port) < 0) { IFPGA_RAWDEV_PMD_ERR("error to parse %s", IFPGA_ARG_PORT); goto end; + } else { + args->port = port; } } else { IFPGA_RAWDEV_PMD_ERR("arg %s is mandatory for ifpga bus", - IFPGA_ARG_PORT); + IFPGA_ARG_PORT); goto end; } + ret = 0; + +end: + if (kvlist) + rte_kvargs_free(kvlist); + + return ret; +} + +static int +ifpga_cfg_probe(struct rte_vdev_device *vdev) +{ + struct rte_rawdev *rawdev = NULL; + struct ifpga_rawdev *ifpga_dev; + struct ifpga_vdev_args args; + char dev_name[RTE_RAWDEV_NAME_MAX_LEN]; + const char *vdev_name = NULL; + int i, n, ret = 0; + + vdev_name = rte_vdev_device_name(vdev); + if (!vdev_name) + return -EINVAL; + + IFPGA_RAWDEV_PMD_INFO("probe ifpga virtual device %s", vdev_name); + + ret = ifpga_vdev_parse_devargs(vdev->device.devargs, &args); + if (ret) + return ret; + memset(dev_name, 0, sizeof(dev_name)); - snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", name); + snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", args.bdf); rawdev = rte_rawdev_pmd_get_named_dev(dev_name); if (!rawdev) - goto end; + return -ENODEV; ifpga_dev = ifpga_rawdev_get(rawdev); if (!ifpga_dev) - goto end; + return -ENODEV; - memset(dev_name, 0, sizeof(dev_name)); - snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s", - port, name); + for (i = 0; i < IFPGA_MAX_VDEV; i++) { + if (ifpga_dev->vdev_name[i] == NULL) { + n = strlen(vdev_name) + 1; + ifpga_dev->vdev_name[i] = rte_malloc(NULL, n, 0); + if (ifpga_dev->vdev_name[i] == NULL) + return -ENOMEM; + strlcpy(ifpga_dev->vdev_name[i], vdev_name, n); + break; + } + } + if (i >= IFPGA_MAX_VDEV) { + IFPGA_RAWDEV_PMD_ERR("Can't create more virtual device!"); + return -ENOENT; + } + + snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s", + args.port, args.bdf); ret = rte_eal_hotplug_add(RTE_STR(IFPGA_BUS_NAME), - dev_name, devargs->args); -end: - if (kvlist) - rte_kvargs_free(kvlist); - if (name) - free(name); + dev_name, vdev->device.devargs->args); + if (ret) { + rte_free(ifpga_dev->vdev_name[i]); + ifpga_dev->vdev_name[i] = NULL; + } return ret; } @@ -1769,10 +1822,47 @@ static int ifpga_rawdev_get_string_arg(const char *key __rte_unused, static int ifpga_cfg_remove(struct rte_vdev_device *vdev) { - IFPGA_RAWDEV_PMD_INFO("Remove ifpga_cfg %p", - vdev); + struct rte_rawdev *rawdev = NULL; + struct ifpga_rawdev *ifpga_dev; + struct ifpga_vdev_args args; + char dev_name[RTE_RAWDEV_NAME_MAX_LEN]; + const char *vdev_name = NULL; + char *tmp_vdev = NULL; + int i, ret = 0; - return 0; + vdev_name = rte_vdev_device_name(vdev); + if (!vdev_name) + return -EINVAL; + + IFPGA_RAWDEV_PMD_INFO("remove ifpga virtual device %s", vdev_name); + + ret = ifpga_vdev_parse_devargs(vdev->device.devargs, &args); + if (ret) + return ret; + + memset(dev_name, 0, sizeof(dev_name)); + snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", args.bdf); + rawdev = rte_rawdev_pmd_get_named_dev(dev_name); + if (!rawdev) + return -ENODEV; + ifpga_dev = ifpga_rawdev_get(rawdev); + if (!ifpga_dev) + return -ENODEV; + + snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s", + args.port, args.bdf); + ret = rte_eal_hotplug_remove(RTE_STR(IFPGA_BUS_NAME), dev_name); + + for (i = 0; i < IFPGA_MAX_VDEV; i++) { + tmp_vdev = ifpga_dev->vdev_name[i]; + if (tmp_vdev && !strcmp(tmp_vdev, vdev_name)) { + free(tmp_vdev); + ifpga_dev->vdev_name[i] = NULL; + break; + } + } + + return ret; } static struct rte_vdev_driver ifpga_cfg_driver = { diff --git a/drivers/raw/ifpga/ifpga_rawdev.h b/drivers/raw/ifpga/ifpga_rawdev.h index b3c7295..b4aaa15 100644 --- a/drivers/raw/ifpga/ifpga_rawdev.h +++ b/drivers/raw/ifpga/ifpga_rawdev.h @@ -50,6 +50,7 @@ enum ifpga_rawdev_device_state { #define IFPGA_RAWDEV_MSIX_IRQ_NUM 7 #define IFPGA_RAWDEV_NUM 32 +#define IFPGA_MAX_VDEV 4 #define IFPGA_MAX_IRQ 12 struct ifpga_rawdev { @@ -64,6 +65,13 @@ struct ifpga_rawdev { void *intr_handle[IFPGA_MAX_IRQ]; /* enable monitor thread poll device's sensors or not */ int poll_enabled; + /* name of virtual devices created on raw device */ + char *vdev_name[IFPGA_MAX_VDEV]; +}; + +struct ifpga_vdev_args { + char bdf[PCI_PRI_STR_SIZE]; + int port; }; struct ifpga_rawdev * -- 1.8.3.1