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, 12 insertions, 0 deletions

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index d925f7dd7fb2..e18ac1bf45ff 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -62,6 +62,17 @@ struct igb_adapter;
 #define IGB_MAX_TX_QUEUES     IGB_MAX_RX_QUEUES
 #define IGB_ABS_MAX_TX_QUEUES     4
 
+#define IGB_MAX_VF_MC_ENTRIES              30
+#define IGB_MAX_VF_FUNCTIONS               8
+#define IGB_MAX_VFTA_ENTRIES               128
+
+struct vf_data_storage {
+        unsigned char vf_mac_addresses[ETH_ALEN];
+        u16 vf_mc_hashes[IGB_MAX_VF_MC_ENTRIES];
+        u16 num_vf_mc_hashes;
+        bool clear_to_send;
+};
+
 /* RX descriptor control thresholds.
  * PTHRESH - MAC will consider prefetch if it has fewer than this number of
  *           descriptors available in its onboard memory.
@@ -272,6 +283,7 @@ struct igb_adapter {
         unsigned int tx_ring_count;
         unsigned int rx_ring_count;
         unsigned int vfs_allocated_count;
+        struct vf_data_storage *vf_data;
 };
 
 #define IGB_FLAG_HAS_MSI           (1 << 0)