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 2E2A8A00C4 for ; Thu, 21 Apr 2022 03:37:36 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 258B241101; Thu, 21 Apr 2022 03:37:36 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mails.dpdk.org (Postfix) with ESMTP id 47C8B40C35; Thu, 21 Apr 2022 03:37:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650505053; x=1682041053; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ue9bacf8GlPoLd6JmhAaNqXYsbmrL+TGmE1OeE811AI=; b=NtBlo+JDjLkfzoZVMqtDZgPmm4/yfxFEYuqSiKUJfH03Gg4H/1LwcmWZ 7aVAljdOPcQNixzfGRSPAORqDp7lf731gD2RzTM1ILVln84sFkBpBsPVP 2dSjw8VXzBhKCLDAdZ2v3Fsa84078L3jrzuXDVOC7K0bSXazAd3LrL4q9 YYdAyeoaCrhOxGeFc/idY+Foe4todicSS6c0AmhrEbjKSxg0gTD2P9q8a b5sF8Xus+FmeZgWM9NFT/yBNGbcR09DdjJH7ZXGwYKhznDH6b74QK0HG6 1LD/IbOTyqDEdPg4fBT3pzpWEjwoBJrAey/ydBm8lwF+uTSJzBC6EduKX Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10323"; a="289313614" X-IronPort-AV: E=Sophos;i="5.90,277,1643702400"; d="scan'208";a="289313614" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2022 18:37:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,277,1643702400"; d="scan'208";a="727753792" Received: from unknown (HELO localhost.localdomain.sh.intel.com) ([10.238.175.107]) by orsmga005.jf.intel.com with ESMTP; 20 Apr 2022 18:37:29 -0700 From: Wei Huang To: dev@dpdk.org, thomas@monjalon.net, rosen.xu@intel.com, nipun.gupta@nxp.com, hemant.agrawal@nxp.com Cc: stable@dpdk.org, tianfei.zhang@intel.com, qi.z.zhang@intel.com, Wei Huang Subject: [PATCH v4] raw/ifpga: remove vdev when ifpga is closed Date: Wed, 20 Apr 2022 21:34:04 -0400 Message-Id: <20220421013404.452723-1-wei.huang@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20220318085755.2134030-1-wei.huang@intel.com> References: <20220318085755.2134030-1-wei.huang@intel.com> 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 Virtual devices created on ifpga raw device are not removed when ifpga is closed. To avoid such problem, ifpga virtual device remove function is implemented, virtual device is removed in raw device close function. Fixes: ef1e8ede3da5 ("raw/ifpga: add Intel FPGA bus rawdev driver") Cc: stable@dpdk.org Signed-off-by: Wei Huang Acked-by: Tianfei Zhang Acked-by: Rosen Xu --- v2: cleanup vdev_name no matter rte_vdev_uninit succeed or not --- v3: cleanup vdev_name in ifpga_cfg_remove --- v4: add fix information in log --- drivers/raw/ifpga/ifpga_rawdev.c | 166 ++++++++++++++++++++++++++++++--------- drivers/raw/ifpga/ifpga_rawdev.h | 8 ++ 2 files changed, 138 insertions(+), 36 deletions(-) diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c index 6d4117c..fe3fc43 100644 --- a/drivers/raw/ifpga/ifpga_rawdev.c +++ b/drivers/raw/ifpga/ifpga_rawdev.c @@ -134,6 +134,8 @@ 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; } @@ -736,10 +738,22 @@ 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; + char *vdev_name = NULL; + int i = 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) { opae_adapter_destroy(adapter); @@ -1638,8 +1652,6 @@ static int fme_clean_fme_error(struct opae_manager *mgr) return -EINVAL; } dev = ifpga_rawdev_get(rawdev); - if (dev) - dev->rawdev = NULL; adapter = ifpga_rawdev_get_priv(rawdev); if (!adapter) @@ -1714,73 +1726,118 @@ 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: - rte_kvargs_free(kvlist); - 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; } @@ -1788,10 +1845,47 @@ 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 857b734..eb9a9a5 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[8]; + int port; }; struct ifpga_rawdev * -- 1.8.3.1