diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 52 |
1 files changed, 41 insertions, 11 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index eb3f67c854a7..d2854434ad12 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -107,15 +107,21 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, "VF drivers to avoid spoofed packet errors\n"); } else { err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); + if (err) { + e_err(probe, "Failed to enable PCI sriov: %d\n", err); + goto err_novfs; + } } - if (err) { - e_err(probe, "Failed to enable PCI sriov: %d\n", err); - goto err_novfs; - } - adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; + adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); + /* Enable VMDq flag so device will be set in VM mode */ + adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; + if (!adapter->ring_feature[RING_F_VMDQ].limit) + adapter->ring_feature[RING_F_VMDQ].limit = 1; + adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; + num_vf_macvlans = hw->mac.num_rar_entries - (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); @@ -146,12 +152,39 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, * and memory allocated set up the mailbox parameters */ ixgbe_init_mbx_params_pf(hw); - memcpy(&hw->mbx.ops, ii->mbx_ops, - sizeof(hw->mbx.ops)); + memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); + + /* limit trafffic classes based on VFs enabled */ + if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && + (adapter->num_vfs < 16)) { + adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; + adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; + } else if (adapter->num_vfs < 32) { + adapter->dcb_cfg.num_tcs.pg_tcs = 4; + adapter->dcb_cfg.num_tcs.pfc_tcs = 4; + } else { + adapter->dcb_cfg.num_tcs.pg_tcs = 1; + adapter->dcb_cfg.num_tcs.pfc_tcs = 1; + } + + /* We do not support RSS w/ SR-IOV */ + adapter->ring_feature[RING_F_RSS].limit = 1; /* Disable RSC when in SR-IOV mode */ adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | IXGBE_FLAG2_RSC_ENABLED); + +#ifdef IXGBE_FCOE + /* + * When SR-IOV is enabled 82599 cannot support jumbo frames + * so we must disable FCoE because we cannot support FCoE MTU. + */ + if (adapter->hw.mac.type == ixgbe_mac_82599EB) + adapter->flags &= ~(IXGBE_FLAG_FCOE_ENABLED | + IXGBE_FLAG_FCOE_CAPABLE); +#endif + + /* enable spoof checking for all VFs */ for (i = 0; i < adapter->num_vfs; i++) adapter->vfinfo[i].spoofchk_enabled = true; return; @@ -171,7 +204,6 @@ err_novfs: void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; - u32 gcr; u32 gpie; u32 vmdctl; int i; @@ -182,9 +214,7 @@ void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) #endif /* turn off device IOV mode */ - gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); - gcr &= ~(IXGBE_GCR_EXT_SRIOV); - IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr); + IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); gpie &= ~IXGBE_GPIE_VTMODE_MASK; IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); |