diff options
Diffstat (limited to 'src/dpdk/lib/librte_eal/common/include/rte_pci.h')
| -rw-r--r-- | src/dpdk/lib/librte_eal/common/include/rte_pci.h | 72 |
1 files changed, 50 insertions, 22 deletions
diff --git a/src/dpdk/lib/librte_eal/common/include/rte_pci.h b/src/dpdk/lib/librte_eal/common/include/rte_pci.h index fa749626..8557e477 100644 --- a/src/dpdk/lib/librte_eal/common/include/rte_pci.h +++ b/src/dpdk/lib/librte_eal/common/include/rte_pci.h @@ -82,7 +82,9 @@ extern "C" { #include <stdint.h> #include <inttypes.h> +#include <rte_debug.h> #include <rte_interrupts.h> +#include <rte_dev.h> TAILQ_HEAD(pci_device_list, rte_pci_device); /**< PCI devices in D-linked Q. */ TAILQ_HEAD(pci_driver_list, rte_pci_driver); /**< PCI drivers in D-linked Q. */ @@ -95,6 +97,7 @@ const char *pci_get_sysfs_path(void); /** Formatting string for PCI device identifier: Ex: 0000:00:01.0 */ #define PCI_PRI_FMT "%.4" PRIx16 ":%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8 +#define PCI_PRI_STR_SIZE sizeof("XXXX:XX:XX.X") /** Short formatting string, without domain, for PCI device: Ex: 00:01.0 */ #define PCI_SHORT_PRI_FMT "%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8 @@ -105,15 +108,6 @@ const char *pci_get_sysfs_path(void); /** Nb. of values in PCI resource format. */ #define PCI_RESOURCE_FMT_NVAL 3 -/** - * A structure describing a PCI resource. - */ -struct rte_pci_resource { - uint64_t phys_addr; /**< Physical address, 0 if no resource. */ - uint64_t len; /**< Length of the resource. */ - void *addr; /**< Virtual address, NULL when not mapped. */ -}; - /** Maximum number of PCI resources. */ #define PCI_MAX_RESOURCE 6 @@ -155,17 +149,23 @@ enum rte_kernel_driver { */ struct rte_pci_device { TAILQ_ENTRY(rte_pci_device) next; /**< Next probed PCI device. */ + struct rte_device device; /**< Inherit core device */ struct rte_pci_addr addr; /**< PCI location. */ struct rte_pci_id id; /**< PCI ID. */ - struct rte_pci_resource mem_resource[PCI_MAX_RESOURCE]; /**< PCI Memory Resource */ + struct rte_mem_resource mem_resource[PCI_MAX_RESOURCE]; + /**< PCI Memory Resource */ struct rte_intr_handle intr_handle; /**< Interrupt handle */ struct rte_pci_driver *driver; /**< Associated driver */ uint16_t max_vfs; /**< sriov enable if not zero */ - int numa_node; /**< NUMA node connection */ - struct rte_devargs *devargs; /**< Device user arguments */ enum rte_kernel_driver kdrv; /**< Kernel driver passthrough */ }; +/** + * @internal + * Helper macro for drivers that need to convert to struct rte_pci_device. + */ +#define RTE_DEV_TO_PCI(ptr) container_of(ptr, struct rte_pci_device, device) + /** Any PCI device identifier (vendor, device, ...) */ #define PCI_ANY_ID (0xffff) #define RTE_CLASS_ANY_ID (0xffffff) @@ -193,33 +193,29 @@ struct rte_pci_driver; /** * Initialisation function for the driver called during PCI probing. */ -typedef int (pci_devinit_t)(struct rte_pci_driver *, struct rte_pci_device *); +typedef int (pci_probe_t)(struct rte_pci_driver *, struct rte_pci_device *); /** * Uninitialisation function for the driver called during hotplugging. */ -typedef int (pci_devuninit_t)(struct rte_pci_device *); +typedef int (pci_remove_t)(struct rte_pci_device *); /** * A structure describing a PCI driver. */ struct rte_pci_driver { TAILQ_ENTRY(rte_pci_driver) next; /**< Next in list. */ - const char *name; /**< Driver name. */ - pci_devinit_t *devinit; /**< Device init. function. */ - pci_devuninit_t *devuninit; /**< Device uninit function. */ + struct rte_driver driver; /**< Inherit core driver. */ + pci_probe_t *probe; /**< Device Probe function. */ + pci_remove_t *remove; /**< Device Remove function. */ const struct rte_pci_id *id_table; /**< ID table, NULL terminated. */ uint32_t drv_flags; /**< Flags contolling handling of device. */ }; /** Device needs PCI BAR mapping (done with either IGB_UIO or VFIO) */ #define RTE_PCI_DRV_NEED_MAPPING 0x0001 -/** Device needs to be unbound even if no module is provided */ -#define RTE_PCI_DRV_FORCE_UNBIND 0x0004 /** Device driver supports link state interrupt */ #define RTE_PCI_DRV_INTR_LSC 0x0008 -/** Device driver supports detaching capability */ -#define RTE_PCI_DRV_DETACHABLE 0x0010 /** * A structure describing a PCI mapping. @@ -308,6 +304,28 @@ eal_parse_pci_DomBDF(const char *input, struct rte_pci_addr *dev_addr) } #undef GET_PCIADDR_FIELD +/** + * Utility function to write a pci device name, this device name can later be + * used to retrieve the corresponding rte_pci_addr using eal_parse_pci_* + * BDF helpers. + * + * @param addr + * The PCI Bus-Device-Function address + * @param output + * The output buffer string + * @param size + * The output buffer size + */ +static inline void +rte_eal_pci_device_name(const struct rte_pci_addr *addr, + char *output, size_t size) +{ + RTE_VERIFY(size >= PCI_PRI_STR_SIZE); + RTE_VERIFY(snprintf(output, size, PCI_PRI_FMT, + addr->domain, addr->bus, + addr->devid, addr->function) >= 0); +} + /* Compare two PCI device addresses. */ /** * Utility function to compare two PCI device addresses. @@ -442,7 +460,7 @@ int rte_eal_pci_probe_one(const struct rte_pci_addr *addr); * Close the single PCI device. * * Scan the content of the PCI bus, and find the pci device specified by pci - * address, then call the devuninit() function for registered driver that has a + * address, then call the remove() function for registered driver that has a * matching entry in its id_table for discovered device. * * @param addr @@ -470,6 +488,16 @@ void rte_eal_pci_dump(FILE *f); */ void rte_eal_pci_register(struct rte_pci_driver *driver); +/** Helper for PCI device registration from driver (eth, crypto) instance */ +#define RTE_PMD_REGISTER_PCI(nm, pci_drv) \ +RTE_INIT(pciinitfn_ ##nm); \ +static void pciinitfn_ ##nm(void) \ +{\ + (pci_drv).driver.name = RTE_STR(nm);\ + rte_eal_pci_register(&pci_drv); \ +} \ +RTE_PMD_EXPORT_NAME(nm, __COUNTER__) + /** * Unregister a PCI driver. * |