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sfc: Prepare to bind the sfc driver to the VF.

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Added efx_nic_type structure for VF.
Mapped a different BAR for VF as it uses BAR 0 for memory.
Added functions sriov_init and sriov_fini.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shradha Shah
2015-05-06 00:58:14 +01:00
committed by David S. Miller
parent 1cd9ecbbe6
commit 02246a7f96
9 changed files with 176 additions and 16 deletions
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15
drivers/net/ethernet/sfc/efx.c
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@@ -1201,10 +1201,12 @@ static int efx_init_io(struct efx_nic *efx)
struct pci_dev *pci_dev = efx->pci_dev;
dma_addr_t dma_mask = efx->type->max_dma_mask;
unsigned int mem_map_size = efx->type->mem_map_size(efx);
int rc;
int rc, bar;
netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
bar = efx->type->mem_bar;
rc = pci_enable_device(pci_dev);
if (rc) {
netif_err(efx, probe, efx->net_dev,
@@ -1235,8 +1237,8 @@ static int efx_init_io(struct efx_nic *efx)
netif_dbg(efx, probe, efx->net_dev,
"using DMA mask %llx\n", (unsigned long long) dma_mask);
efx->membase_phys = pci_resource_start(efx->pci_dev, EFX_MEM_BAR);
rc = pci_request_region(pci_dev, EFX_MEM_BAR, "sfc");
efx->membase_phys = pci_resource_start(efx->pci_dev, bar);
rc = pci_request_region(pci_dev, bar, "sfc");
if (rc) {
netif_err(efx, probe, efx->net_dev,
"request for memory BAR failed\n");
@@ -1259,7 +1261,7 @@ static int efx_init_io(struct efx_nic *efx)
return 0;
fail4:
pci_release_region(efx->pci_dev, EFX_MEM_BAR);
pci_release_region(efx->pci_dev, bar);
fail3:
efx->membase_phys = 0;
fail2:
@@ -1270,6 +1272,8 @@ static int efx_init_io(struct efx_nic *efx)
static void efx_fini_io(struct efx_nic *efx)
{
int bar;
netif_dbg(efx, drv, efx->net_dev, "shutting down I/O\n");
if (efx->membase) {
@@ -1278,7 +1282,8 @@ static void efx_fini_io(struct efx_nic *efx)
}
if (efx->membase_phys) {
pci_release_region(efx->pci_dev, EFX_MEM_BAR);
bar = efx->type->mem_bar;
pci_release_region(efx->pci_dev, bar);
efx->membase_phys = 0;
}