diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2012-07-14 06:48:49 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-07-18 13:26:22 -0700 |
| commit | 73079ea0414098ae83f341028434e04d63144ce2 (patch) | |
| tree | 5419e822cd0ae1e3d8eda085d725bccc9fcd1b0b /drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | |
| parent | 435b19f6210edc98e45c98f9d56eeca6c2140452 (diff) | |
ixgbe: Add support for SR-IOV w/ DCB or RSS
This change essentially makes it so that we can enable almost all of the
features all at once. This patch allows for the combination of SR-IOV,
DCB, and FCoE in the case of the x540. It also beefs up the SR-IOV by
adding support for RSS to the PF.
The testing matrix gets to be very complex for this patch as there are a
number of different features and subsets for queueing options. I tried to
narrow these down a bit by restricting the PF to only supporting 4TC DCB
when it is enabled in addition to SR-IOV.
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index ea94fa24a1d..454e556307f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3161,9 +3161,18 @@ static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) * Set up VF register offsets for selected VT Mode, * i.e. 32 or 64 VFs for SR-IOV */ - gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); - gcr_ext |= IXGBE_GCR_EXT_MSIX_EN; - gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64; + switch (adapter->ring_feature[RING_F_VMDQ].mask) { + case IXGBE_82599_VMDQ_8Q_MASK: + gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; + break; + case IXGBE_82599_VMDQ_4Q_MASK: + gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; + break; + default: + gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; + break; + } + IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); /* enable Tx loopback for VF/PF communication */ @@ -3947,7 +3956,18 @@ static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { gpie &= ~IXGBE_GPIE_VTMODE_MASK; - gpie |= IXGBE_GPIE_VTMODE_64; + + switch (adapter->ring_feature[RING_F_VMDQ].mask) { + case IXGBE_82599_VMDQ_8Q_MASK: + gpie |= IXGBE_GPIE_VTMODE_16; + break; + case IXGBE_82599_VMDQ_4Q_MASK: + gpie |= IXGBE_GPIE_VTMODE_32; + break; + default: + gpie |= IXGBE_GPIE_VTMODE_64; + break; + } } /* Enable Thermal over heat sensor interrupt */ @@ -6674,11 +6694,6 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) return -EINVAL; } - if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { - e_err(drv, "Enable failed, SR-IOV enabled\n"); - return -EINVAL; - } - /* Hardware supports up to 8 traffic classes */ if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || (hw->mac.type == ixgbe_mac_82598EB && @@ -7225,10 +7240,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, netdev->priv_flags |= IFF_UNICAST_FLT; netdev->priv_flags |= IFF_SUPP_NOFCS; - if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) - adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED | - IXGBE_FLAG_DCB_ENABLED); - #ifdef CONFIG_IXGBE_DCB netdev->dcbnl_ops = &dcbnl_ops; #endif |