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sfc: Enable a VF to get its own MAC address

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A VF's MAC address is set by its parent PF and added to its vport.
To get this MAC address, the VF must use MC_CMD_ VPORT_GET_MAC_ADDRESSES.
In the current scheme, a VF's vport should only have one MAC address,
so warn if this is not the case.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Pieczko 2015-05-20 11:10:20 +01:00 committed by David S. Miller
parent 0d322413d6
commit 0d5e0fbba0
2 changed files with 34 additions and 2 deletions
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35
drivers/net/ethernet/sfc/ef10.c
View File

@ -198,7 +198,7 @@ static int efx_ef10_get_sysclk_freq(struct efx_nic *efx)
return rc > 0 ? rc : -ERANGE;
}
static int efx_ef10_get_mac_address(struct efx_nic *efx, u8 *mac_address)
static int efx_ef10_get_mac_address_pf(struct efx_nic *efx, u8 *mac_address)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
size_t outlen;
@ -218,6 +218,34 @@ static int efx_ef10_get_mac_address(struct efx_nic *efx, u8 *mac_address)
return 0;
}
static int efx_ef10_get_mac_address_vf(struct efx_nic *efx, u8 *mac_address)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX);
size_t outlen;
int num_addrs, rc;
MCDI_SET_DWORD(inbuf, VPORT_GET_MAC_ADDRESSES_IN_VPORT_ID,
EVB_PORT_ID_ASSIGNED);
rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_GET_MAC_ADDRESSES, inbuf,
sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMIN)
return -EIO;
num_addrs = MCDI_DWORD(outbuf,
VPORT_GET_MAC_ADDRESSES_OUT_MACADDR_COUNT);
WARN_ON(num_addrs != 1);
ether_addr_copy(mac_address,
MCDI_PTR(outbuf, VPORT_GET_MAC_ADDRESSES_OUT_MACADDR));
return 0;
}
static int efx_ef10_probe(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data;
@ -299,7 +327,7 @@ static int efx_ef10_probe(struct efx_nic *efx)
goto fail3;
efx->port_num = rc;
rc = efx_ef10_get_mac_address(efx, efx->net_dev->perm_addr);
rc = efx->type->get_mac_address(efx, efx->net_dev->perm_addr);
if (rc)
goto fail3;
@ -3982,6 +4010,8 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
.vswitching_restore = efx_ef10_vswitching_restore_vf,
.vswitching_remove = efx_ef10_vswitching_remove_vf,
#endif
.get_mac_address = efx_ef10_get_mac_address_vf,
.revision = EFX_REV_HUNT_A0,
.max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
.rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
@ -4099,6 +4129,7 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
.vswitching_restore = efx_ef10_vswitching_restore_pf,
.vswitching_remove = efx_ef10_vswitching_remove_pf,
#endif
.get_mac_address = efx_ef10_get_mac_address_pf,
.revision = EFX_REV_HUNT_A0,
.max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),

1
drivers/net/ethernet/sfc/net_driver.h
View File

@ -1351,6 +1351,7 @@ struct efx_nic_type {
int (*vswitching_probe)(struct efx_nic *efx);
int (*vswitching_restore)(struct efx_nic *efx);
void (*vswitching_remove)(struct efx_nic *efx);
int (*get_mac_address)(struct efx_nic *efx, unsigned char *perm_addr);
int revision;
unsigned int txd_ptr_tbl_base;