igb: Add support for enabling VFs to PF driver.

This patch adds the support to handle requests from the VF to perform
operations such as completing resets, setting/reading mac address, adding
vlans, adding multicast addresses, setting rlpml, and general
communications between the PF and all VFs.

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>

1 files changed, 42 insertions, 0 deletions

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 7f43e253c566..ea63a215c909 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -213,6 +213,10 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
                 return -E1000_ERR_PHY;
         }
 
+        /* if 82576 then initialize mailbox parameters */
+        if (mac->type == e1000_82576)
+                igb_init_mbx_params_pf(hw);
+
         return 0;
 }
 
@@ -1413,6 +1417,44 @@ void igb_rx_fifo_flush_82575(struct e1000_hw *hw)
         rd32(E1000_MPC);
 }
 
+/**
+ *  igb_vmdq_set_loopback_pf - enable or disable vmdq loopback
+ *  @hw: pointer to the hardware struct
+ *  @enable: state to enter, either enabled or disabled
+ *
+ *  enables/disables L2 switch loopback functionality.
+ **/
+void igb_vmdq_set_loopback_pf(struct e1000_hw *hw, bool enable)
+{
+        u32 dtxswc = rd32(E1000_DTXSWC);
+
+        if (enable)
+                dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN;
+        else
+                dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN;
+
+        wr32(E1000_DTXSWC, dtxswc);
+}
+
+/**
+ *  igb_vmdq_set_replication_pf - enable or disable vmdq replication
+ *  @hw: pointer to the hardware struct
+ *  @enable: state to enter, either enabled or disabled
+ *
+ *  enables/disables replication of packets across multiple pools.
+ **/
+void igb_vmdq_set_replication_pf(struct e1000_hw *hw, bool enable)
+{
+        u32 vt_ctl = rd32(E1000_VT_CTL);
+
+        if (enable)
+                vt_ctl |= E1000_VT_CTL_VM_REPL_EN;
+        else
+                vt_ctl &= ~E1000_VT_CTL_VM_REPL_EN;
+
+        wr32(E1000_VT_CTL, vt_ctl);
+}
+
 static struct e1000_mac_operations e1000_mac_ops_82575 = {
         .reset_hw             = igb_reset_hw_82575,
         .init_hw              = igb_init_hw_82575,