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[219.106.231.132]) by mx.google.com with ESMTPSA id ky4sm3686872pbc.55.2014.10.29.01.50.28 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 29 Oct 2014 01:50:30 -0700 (PDT) From: Tetsuya Mukawa To: dev@dpdk.org Date: Wed, 29 Oct 2014 17:49:26 +0900 Message-Id: <1414572576-21371-16-git-send-email-mukawa@igel.co.jp> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1414572576-21371-1-git-send-email-mukawa@igel.co.jp> References: <1414572576-21371-1-git-send-email-mukawa@igel.co.jp> Cc: nakajima.yoshihiro@lab.ntt.co.jp, masutani.hitoshi@lab.ntt.co.jp Subject: [dpdk-dev] [RFC PATCH 15/25] eal/pci: Add probe and close function for virtual drivers X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Oct 2014 08:41:41 -0000 The patch adds rte_eal_dev_init_one() and rte_eal_dev_close_one(). These are used for attaching and detaching virtual devices. Signed-off-by: Tetsuya Mukawa --- lib/librte_eal/common/eal_common_dev.c | 74 +++++++++++++++++++++++++++++++++ lib/librte_eal/common/include/rte_dev.h | 6 +++ lib/librte_eal/linuxapp/eal/Makefile | 1 + 3 files changed, 81 insertions(+) diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c index eae5656..183d65b 100644 --- a/lib/librte_eal/common/eal_common_dev.c +++ b/lib/librte_eal/common/eal_common_dev.c @@ -32,10 +32,13 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include +#include #include #include #include +#include #include #include #include @@ -107,3 +110,74 @@ rte_eal_dev_init(void) } return 0; } + +/* So far, linux only supports DPDK hotplug function. */ +#if defined(RTE_LIBRTE_EAL_HOTPLUG) && defined(RTE_LIBRTE_EAL_LINUXAPP) + +#define INVOKE_PROBE (0) +#define INVOKE_CLOSE (1) + +static void +rte_eal_dev_invoke(struct rte_driver *driver, + struct rte_devargs *devargs, int type) +{ + switch (type) { + case INVOKE_PROBE: + driver->init(devargs->virtual.drv_name, devargs->args); + break; + case INVOKE_CLOSE: + driver->close(devargs->virtual.drv_name, devargs->args); + break; + } +} + +static int +rte_eal_dev_find_and_invoke(const char *name, int type) +{ + struct rte_devargs *devargs; + struct rte_driver *driver; + + /* call the init function for each virtual device */ + TAILQ_FOREACH(devargs, &devargs_list, next) { + + if (devargs->type != RTE_DEVTYPE_VIRTUAL) + continue; + + if (strncmp(name, devargs->virtual.drv_name, strlen(name))) + continue; + + TAILQ_FOREACH(driver, &dev_driver_list, next) { + if (driver->type != PMD_VDEV) + continue; + + /* search a driver prefix in virtual device name */ + if (!strncmp(driver->name, devargs->virtual.drv_name, + strlen(driver->name))) { + rte_eal_dev_invoke(driver, devargs, type); + break; + } + } + + if (driver == NULL) { + RTE_LOG(WARNING, EAL, "no driver found for %s\n", + devargs->virtual.drv_name); + } + return 0; + } + return 1; +} + +/* find and initialize the driver of specified virtual device */ +static int +rte_eal_dev_init_one(const char *name) +{ + return rte_eal_dev_find_and_invoke(name, INVOKE_PROBE); +} + +/* find and finalize the driver of specified virtual device */ +static int +rte_eal_dev_close_one(const char *name) +{ + return rte_eal_dev_find_and_invoke(name, INVOKE_CLOSE); +} +#endif /* RTE_LIBRTE_EAL_HOTPLUG & RTE_LIBRTE_EAL_LINUXAPP */ diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h index f7e3a10..71d40c3 100644 --- a/lib/librte_eal/common/include/rte_dev.h +++ b/lib/librte_eal/common/include/rte_dev.h @@ -57,6 +57,11 @@ TAILQ_HEAD(rte_driver_list, rte_driver); typedef int (rte_dev_init_t)(const char *name, const char *args); /** + * Close function called for each device driver once. + */ +typedef int (rte_dev_close_t)(const char *name, const char *args); + +/** * Driver type enumeration */ enum pmd_type { @@ -72,6 +77,7 @@ struct rte_driver { enum pmd_type type; /**< PMD Driver type */ const char *name; /**< Driver name. */ rte_dev_init_t *init; /**< Device init. function. */ + rte_dev_close_t *close; /**< Device close. function. */ }; /** diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile index c99433e..27e9b48 100644 --- a/lib/librte_eal/linuxapp/eal/Makefile +++ b/lib/librte_eal/linuxapp/eal/Makefile @@ -40,6 +40,7 @@ CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common/include CFLAGS += -I$(RTE_SDK)/lib/librte_ring CFLAGS += -I$(RTE_SDK)/lib/librte_mempool CFLAGS += -I$(RTE_SDK)/lib/librte_malloc +CFLAGS += -I$(RTE_SDK)/lib/librte_mbuf CFLAGS += -I$(RTE_SDK)/lib/librte_ether CFLAGS += -I$(RTE_SDK)/lib/librte_ivshmem CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_ring -- 1.9.1