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SPDK: Add spdk_pci_device_cfg read/write for byte, word.

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This patch is used to support spdk_pci_device_cfg read/write
with byte and word size.

Change-Id: I49084e231bd6b5f5b22180a3eb36ddad4430b3a4
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
This commit is contained in:
Ziye Yang 2016-02-16 10:11:25 +08:00 committed by Daniel Verkamp
parent 04adec22bc
commit 3d7bcab40a
2 changed files with 52 additions and 0 deletions
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4
include/spdk/pci.h
View File

@ -57,6 +57,10 @@ uint16_t spdk_pci_device_get_subdevice_id(struct spdk_pci_device *dev);
uint32_t spdk_pci_device_get_class(struct spdk_pci_device *dev);
const char *spdk_pci_device_get_device_name(struct spdk_pci_device *dev);
int spdk_pci_device_cfg_read8(struct spdk_pci_device *dev, uint8_t *value, uint32_t offset);
int spdk_pci_device_cfg_write8(struct spdk_pci_device *dev, uint8_t value, uint32_t offset);
int spdk_pci_device_cfg_read16(struct spdk_pci_device *dev, uint16_t *value, uint32_t offset);
int spdk_pci_device_cfg_write16(struct spdk_pci_device *dev, uint16_t value, uint32_t offset);
int spdk_pci_device_cfg_read32(struct spdk_pci_device *dev, uint32_t *value, uint32_t offset);
int spdk_pci_device_cfg_write32(struct spdk_pci_device *dev, uint32_t value, uint32_t offset);

48
lib/util/pci.c
View File

@ -162,6 +162,30 @@ spdk_pci_device_get_device_name(struct spdk_pci_device *dev)
return pci_device_get_device_name(dev);
}
int
spdk_pci_device_cfg_read8(struct spdk_pci_device *dev, uint8_t *value, uint32_t offset)
{
return pci_device_cfg_read_u8(dev, value, offset);
}
int
spdk_pci_device_cfg_write8(struct spdk_pci_device *dev, uint8_t value, uint32_t offset)
{
return pci_device_cfg_write_u8(dev, value, offset);
}
int
spdk_pci_device_cfg_read16(struct spdk_pci_device *dev, uint16_t *value, uint32_t offset)
{
return pci_device_cfg_read_u16(dev, value, offset);
}
int
spdk_pci_device_cfg_write16(struct spdk_pci_device *dev, uint16_t value, uint32_t offset)
{
return pci_device_cfg_write_u16(dev, value, offset);
}
int
spdk_pci_device_cfg_read32(struct spdk_pci_device *dev, uint32_t *value, uint32_t offset)
{
@ -314,6 +338,30 @@ spdk_pci_device_get_device_name(struct spdk_pci_device *dev)
return NULL;
}
int
spdk_pci_device_cfg_read8(struct spdk_pci_device *dev, uint8_t *value, uint32_t offset)
{
return rte_eal_pci_read_config(dev, value, 1, offset) == 1 ? 0 : -1;
}
int
spdk_pci_device_cfg_write8(struct spdk_pci_device *dev, uint8_t value, uint32_t offset)
{
return rte_eal_pci_write_config(dev, &value, 1, offset) == 1 ? 0 : -1;
}
int
spdk_pci_device_cfg_read16(struct spdk_pci_device *dev, uint16_t *value, uint32_t offset)
{
return rte_eal_pci_read_config(dev, value, 2, offset) == 2 ? 0 : -1;
}
int
spdk_pci_device_cfg_write16(struct spdk_pci_device *dev, uint16_t value, uint32_t offset)
{
return rte_eal_pci_write_config(dev, &value, 2, offset) == 2 ? 0 : -1;
}
int
spdk_pci_device_cfg_read32(struct spdk_pci_device *dev, uint32_t *value, uint32_t offset)
{