diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 13:51:04 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 15:52:38 +1000 |
| commit | 1cce058b29e7eb8a71a72d8bb87eb7b4e0401c22 (patch) | |
| tree | 493477b7a19606c66de2f003bca83672f2164cad /drivers/net/sfc/efx.c | |
| parent | c26afe9e8591f306d79aab8071f1d34e4f60b700 (diff) | |
| parent | 9d037a777695993ec7437e5f451647dea7919d4c (diff) | |
Merge remote-tracking branch 'origin/master' into next
(Merge in order to get the PCIe mps/mrss code fixes)
Diffstat (limited to 'drivers/net/sfc/efx.c')
| -rw-r--r-- | drivers/net/sfc/efx.c | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index faca764aa21..b59abc706d9 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -1050,7 +1050,6 @@ 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; - bool use_wc; int rc; netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n"); @@ -1101,21 +1100,8 @@ static int efx_init_io(struct efx_nic *efx) rc = -EIO; goto fail3; } - - /* bug22643: If SR-IOV is enabled then tx push over a write combined - * mapping is unsafe. We need to disable write combining in this case. - * MSI is unsupported when SR-IOV is enabled, and the firmware will - * have removed the MSI capability. So write combining is safe if - * there is an MSI capability. - */ - use_wc = (!EFX_WORKAROUND_22643(efx) || - pci_find_capability(pci_dev, PCI_CAP_ID_MSI)); - if (use_wc) - efx->membase = ioremap_wc(efx->membase_phys, - efx->type->mem_map_size); - else - efx->membase = ioremap_nocache(efx->membase_phys, - efx->type->mem_map_size); + efx->membase = ioremap_nocache(efx->membase_phys, + efx->type->mem_map_size); if (!efx->membase) { netif_err(efx, probe, efx->net_dev, "could not map memory BAR at %llx+%x\n", |