From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by dpdk.org (Postfix) with ESMTP id 0DC477CBC for ; Fri, 14 Jul 2017 23:12:47 +0200 (CEST) Received: by mail-wm0-f65.google.com with SMTP id j85so12764966wmj.0 for ; Fri, 14 Jul 2017 14:12:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:subject:date:message-id:in-reply-to:references; bh=plcVbSc7c70xs0vj1xOPky0TmNTukCrK7XFhj0TRbSs=; b=b7IsyXZv4bUYPHKnXCMulKpycW80u/5aowK262PtGgcpsr2/+ZEiUVQmevc8w2hQiT 0EiLeNcmfpdZ9eW9zbAo/4g8pq71NHYezQqro25re4nNQC2KE6p/zVqnqS8Yoors+w/j /UPAvVmtUEuVdXcGmepqSOC9w4AMC412sMr3EGkar5fL9drRp9a1HQiz2VL4fLP4n24z htuWWvmiXejD7RTfI684osnSTLLGRR+sfCHL0ijKGCNrinOw40KifgaMghVXoqvRVJU+ XoAZuww3gVhaoUSVKCaNuH/3qRIKknB3xFoBWBZIHwAE61GJDY3fbSP7jp6awKKguW88 aWQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:subject:date:message-id :in-reply-to:references; bh=plcVbSc7c70xs0vj1xOPky0TmNTukCrK7XFhj0TRbSs=; b=jr9Ot60cxYzIapMBwd5LL75ye75PmE9umdHv+G9s7bYhdXt9rNRDWEje8bIc6bQWVl mO37oi+ZIOztvt3Z5A0o8v3EBTrdesUbitH8NHGHsBUh6eNZMVkJNlQJiTKRONvHNMGc nP+v60JKaCS1zMbFDpI+7KsyTzMoSWmJHdIcl8f0HQY3Y6ws6fggmeBvqtNpdPyO3xFx CXidMtvbecVd6k93Wc5S3NT6Qxy6RDerFNnEvqIUrCCPRnD+2vOmNz9eUJz5XyUgqwSl h3/vpg1/W3MIbTY43SfTYnBz+2B12i7jr/J5ZNi1kS5pQ1CLFhJscHHAqy1TOsgARCSX 90Xg== X-Gm-Message-State: AIVw113XEECyuJM4ArZ1/WBSRZiqtFWVg/55saukO9tiRcDcW899zQVx wjBWAvGuO2mfqA+U X-Received: by 10.80.213.84 with SMTP id f20mr8119387edj.69.1500066766552; Fri, 14 Jul 2017 14:12:46 -0700 (PDT) Received: from localhost.localdomain ([37.228.147.16]) by smtp.gmail.com with ESMTPSA id c11sm4892223eda.0.2017.07.14.14.12.44 for (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 14 Jul 2017 14:12:45 -0700 (PDT) Sender: Jan Blunck From: Jan Blunck To: dev@dpdk.org Date: Fri, 14 Jul 2017 17:12:11 -0400 Message-Id: <20170714211213.34436-14-jblunck@infradead.org> X-Mailer: git-send-email 2.13.2 In-Reply-To: <20170714211213.34436-1-jblunck@infradead.org> References: <20170711232512.54641-1-jblunck@infradead.org> <20170714211213.34436-1-jblunck@infradead.org> Subject: [dpdk-dev] [PATCH v2 13/15] devargs: pass busname argument when parsing 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: Fri, 14 Jul 2017 21:12:47 -0000 Let the rte_eal_devargs_parse() function explicitly take a "busname" argument that is validated. Now that the busname is known and validated at parse time the validity of the device name is checked for all device types when they get probed. Signed-off-by: Jan Blunck --- lib/librte_eal/common/eal_common_devargs.c | 72 +++++++++++------------------ lib/librte_eal/common/include/rte_devargs.h | 17 ++++--- test/test/test_devargs.c | 21 +++------ 3 files changed, 45 insertions(+), 65 deletions(-) diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c index 38ba64567..44a8d8562 100644 --- a/lib/librte_eal/common/eal_common_devargs.c +++ b/lib/librte_eal/common/eal_common_devargs.c @@ -77,30 +77,21 @@ rte_eal_parse_devargs_str(const char *devargs_str, return 0; } -static int -bus_name_cmp(const struct rte_bus *bus, const void *name) -{ - return strncmp(bus->name, name, strlen(bus->name)); -} - int -rte_eal_devargs_parse(const char *dev, struct rte_devargs *da) +rte_eal_devargs_parse(const char *busname, const char *dev, + struct rte_devargs *da) { - struct rte_bus *bus = NULL; char *devname = NULL, *drvargs = NULL; int ret; - if (dev == NULL || da == NULL) + if (busname == NULL || dev == NULL || da == NULL) return -EINVAL; /* Retrieve eventual bus info */ - do { - bus = rte_bus_find(bus, bus_name_cmp, dev); - if (bus == NULL) - break; - dev += strlen(bus->name) + 1; - if (rte_bus_find_by_device_name(dev) == bus) - break; - } while (1); + da->bus = rte_bus_find_by_name(busname); + if (da->bus == NULL) { + RTE_LOG(ERR, EAL, "Bus not found: \"%s\"\n", busname); + return -EFAULT; + } ret = rte_eal_parse_devargs_str(dev, &devname, &drvargs); if (ret != 0) @@ -118,21 +109,10 @@ rte_eal_devargs_parse(const char *dev, struct rte_devargs *da) da->args = drvargs; drvargs = NULL; - if (bus == NULL) { - bus = rte_bus_find_by_device_name(da->name); - if (bus == NULL) { - RTE_LOG(ERR, EAL, "Failed to parse device: \"%s\"\n", - da->name); - ret = -EFAULT; - goto fail; - } - } - da->bus = bus; - /* Store bus name */ - ret = snprintf(da->busname, sizeof(da->busname), "%s", bus->name); + ret = snprintf(da->busname, sizeof(da->busname), "%s", busname); if (ret < 0 || ret >= (int)sizeof(da->busname)) { - RTE_LOG(ERR, EAL, "Invalid bus name: \"%s\"\n", bus->name); + RTE_LOG(ERR, EAL, "Invalid bus name: \"%s\"\n", busname); ret = -EINVAL; goto fail; } @@ -158,8 +138,7 @@ int rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str) { struct rte_devargs *devargs = NULL; - struct rte_bus *bus = NULL; - const char *dev = devargs_str; + const char *busname = NULL; int ret; /* use calloc instead of rte_zmalloc as it's called early at init */ @@ -167,31 +146,36 @@ rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str) if (devargs == NULL) goto fail; - if (rte_eal_devargs_parse(dev, devargs)) - goto fail; - devargs->type = devtype; - bus = devargs->bus; - if (devtype != RTE_DEVTYPE_VIRTUAL) { - ret = rte_bus_configure(bus, + switch (devtype) { + case RTE_DEVTYPE_WHITELISTED_PCI: + case RTE_DEVTYPE_BLACKLISTED_PCI: + busname = "pci"; + ret = rte_bus_configure(rte_bus_find_by_name(busname), devtype == RTE_DEVTYPE_WHITELISTED_PCI ? &BUS_CONF_WHITELIST : &BUS_CONF_BLACKLIST); if (ret != 0) { RTE_LOG(ERR, EAL, "Bus [%s] scan_mode conflicts with devtype: " - "%s\n", bus->name, devargs_str); + "%s\n", busname, devargs_str); goto fail; } + break; + case RTE_DEVTYPE_VIRTUAL: + busname = "vdev"; + break; } + if (rte_eal_devargs_parse(busname, devargs_str, devargs)) + goto fail; + + RTE_LOG(DEBUG, EAL, "Adding devargs for device [%s] on bus [%s]: %s\n", + devargs->name, busname, devargs->args); + TAILQ_INSERT_TAIL(&devargs_list, devargs, next); return 0; fail: - if (devargs) { - free(devargs->args); - free(devargs); - } - + free(devargs); return -1; } diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h index 8dafb167e..10953327f 100644 --- a/lib/librte_eal/common/include/rte_devargs.h +++ b/lib/librte_eal/common/include/rte_devargs.h @@ -124,10 +124,12 @@ int rte_eal_parse_devargs_str(const char *devargs_str, /** * Parse a device string. * - * Verify that a bus is capable of handling the device passed - * in argument. Store which bus will handle the device, its name - * and the eventual device parameters. + * The function parses the arguments string to get driver name and driver + * arguments and stores together with the busname that will handle the device, + * its name and the eventual device parameters. * + * @param busname + * The bus name the device declaration string applies to. * @param dev * The device declaration string. * @param da @@ -138,7 +140,7 @@ int rte_eal_parse_devargs_str(const char *devargs_str, * - Negative errno on error. */ int -rte_eal_devargs_parse(const char *dev, +rte_eal_devargs_parse(const char *busname, const char *dev, struct rte_devargs *da); /** @@ -151,9 +153,10 @@ rte_eal_devargs_parse(const char *dev, * * For virtual devices, the format of arguments string is "DRIVER_NAME*" * or "DRIVER_NAME*,key=val,key2=val2,...". Examples: "net_ring", - * "net_ring0", "net_pmdAnything,arg=0:arg2=1". The validity of the - * driver name is not checked by this function, it is done when probing - * the drivers. + * "net_ring0", "net_pmdAnything,arg=0:arg2=1". + * + * The validity of the device name is not checked by this function, it is done + * when probing the drivers. * * @param devtype * The type of the device. diff --git a/test/test/test_devargs.c b/test/test/test_devargs.c index 9e0ff5995..84803cf5a 100644 --- a/test/test/test_devargs.c +++ b/test/test/test_devargs.c @@ -110,24 +110,17 @@ test_devargs(void) goto fail; free_devargs_list(); - /* test error case: bad PCI address */ - if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI, "08:1") == 0) - goto fail; - if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI, "00.1") == 0) - goto fail; - if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI, "foo") == 0) - goto fail; - if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI, ",") == 0) - goto fail; - if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI, "000f:0:0") == 0) - goto fail; - - if (rte_eal_devargs_parse("", &devargs_stack) == 0) { + if (rte_eal_devargs_parse("", "", &devargs_stack) == 0) { printf("Error in rte_eal_devargs_parse()\n"); goto fail; } - if (rte_eal_devargs_parse("08:00.1,foo=bar", &devargs_stack) != 0) { + if (rte_eal_devargs_parse("vdev", "not_found", &devargs_stack) != 0) { + printf("Error in rte_eal_devargs_parse(vdev:not_found)\n"); + goto fail; + } + if (rte_eal_devargs_parse("pci", "08:00.1,foo=bar", + &devargs_stack) != 0) { printf("Error in rte_eal_devargs_parse(08:00.1,foo=bar)\n"); goto fail; } -- 2.13.2