ixgbe: Move virtualization config into a separate function
This change moves the configuration that was done in configure_rx into a
separate virtualization configuration function.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index f8cdc99..d358bef 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2696,6 +2696,48 @@
psrtype);
}
+static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter)
+{
+ struct ixgbe_hw *hw = &adapter->hw;
+ u32 gcr_ext;
+ u32 vt_reg_bits;
+ u32 reg_offset, vf_shift;
+ u32 vmdctl;
+
+ if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
+ return;
+
+ vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
+ vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN | IXGBE_VT_CTL_REPLEN;
+ vt_reg_bits |= (adapter->num_vfs << IXGBE_VT_CTL_POOL_SHIFT);
+ IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits);
+
+ vf_shift = adapter->num_vfs % 32;
+ reg_offset = (adapter->num_vfs > 32) ? 1 : 0;
+
+ /* Enable only the PF's pool for Tx/Rx */
+ IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift));
+ IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), 0);
+ IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift));
+ IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), 0);
+ IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
+
+ /* Map PF MAC address in RAR Entry 0 to first pool following VFs */
+ hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs);
+
+ /*
+ * 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;
+ IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
+
+ /* enable Tx loopback for VF/PF communication */
+ IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
+}
+
static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
@@ -2820,7 +2862,6 @@
struct ixgbe_ring *rx_ring;
int i;
u32 rxctrl;
- u32 gcr_ext;
/* disable receives while setting up the descriptors */
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
@@ -2829,6 +2870,10 @@
ixgbe_setup_psrtype(adapter);
ixgbe_setup_rdrxctl(adapter);
+ /* Program MRQC for the distribution of queues */
+ ixgbe_setup_mrqc(adapter);
+ ixgbe_configure_virtualization(adapter);
+
/* set_rx_buffer_len must be called before ring initialization */
ixgbe_set_rx_buffer_len(adapter);
@@ -2843,43 +2888,6 @@
ixgbe_configure_rscctl(adapter, rx_ring);
}
- if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
- u32 vt_reg_bits;
- u32 reg_offset, vf_shift;
- u32 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
- vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN
- | IXGBE_VT_CTL_REPLEN;
- vt_reg_bits |= (adapter->num_vfs <<
- IXGBE_VT_CTL_POOL_SHIFT);
- IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits);
- IXGBE_WRITE_REG(hw, IXGBE_MRQC, 0);
-
- vf_shift = adapter->num_vfs % 32;
- reg_offset = adapter->num_vfs / 32;
- IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
- IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
- IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
- IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
- /* Enable only the PF's pool for Tx/Rx */
- IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift));
- IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift));
- IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
- }
-
- /* Program MRQC for the distribution of queues */
- ixgbe_setup_mrqc(adapter);
-
- if (adapter->num_vfs) {
- /* Map PF MAC address in RAR Entry 0 to first pool
- * following VFs */
- hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs);
-
- /* Set up VF register offsets for selected VT Mode, i.e.
- * 64 VFs for SR-IOV */
- gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
- gcr_ext |= IXGBE_GCR_EXT_SRIOV;
- IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
- }
}
static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid)