Commit 9511b2a2 authored by Ben Walker's avatar Ben Walker Committed by Daniel Verkamp
Browse files

env: Add spdk_pci_get_device 



This function will return a device handle from a pci
address.

Change-Id: I323d92c71014ef571f3df9f19c2ec887844707e8
Signed-off-by: default avatarBen Walker <benjamin.walker@intel.com>
parent 5bc79e9c

include/spdk/env.h

+2 −0
Original line number Diff line number Diff line
@@ -186,6 +186,8 @@ typedef int (*spdk_pci_enum_cb)(void *enum_ctx, struct spdk_pci_device *pci_dev) 
int spdk_pci_nvme_enumerate(spdk_pci_enum_cb enum_cb, void *enum_ctx);

int spdk_pci_ioat_enumerate(spdk_pci_enum_cb enum_cb, void *enum_ctx);



struct spdk_pci_device *spdk_pci_get_device(struct spdk_pci_addr *pci_addr);



int spdk_pci_device_map_bar(struct spdk_pci_device *dev, uint32_t bar,

			    void **mapped_addr, uint64_t *phys_addr, uint64_t *size);

int spdk_pci_device_unmap_bar(struct spdk_pci_device *dev, uint32_t bar, void *addr);

lib/env_dpdk/pci.c

+28 −0
Original line number Diff line number Diff line
@@ -141,6 +141,34 @@ spdk_pci_enumerate(struct spdk_pci_enum_ctx *ctx, 
	return 0;

}



struct spdk_pci_device *

spdk_pci_get_device(struct spdk_pci_addr *pci_addr)

{

	struct rte_pci_device	*dev;

	struct rte_pci_addr	addr;

	int			rc;



	addr.domain = pci_addr->domain;

	addr.bus = pci_addr->bus;

	addr.devid = pci_addr->dev;

	addr.function = pci_addr->func;



	TAILQ_FOREACH(dev, &pci_device_list, next) {

		rc = rte_eal_compare_pci_addr(&dev->addr, &addr);

		if (rc < 0) {

			continue;

		}



		if (rc == 0) {

			return (struct spdk_pci_device *)dev;

		} else {

			break;

		}

	}



	return NULL;

}



int

spdk_pci_device_map_bar(struct spdk_pci_device *device, uint32_t bar,

			void **mapped_addr, uint64_t *phys_addr, uint64_t *size)