bnx2x: VF can report link speed

Until now VFs were oblvious to the actual configured link parameters.
This patch does 2 things:

  1. It enables a PF to inform its VF using the bulletin board of the link
     configured, and allows the VF to present that information.

  2. It adds support of `ndo_set_vf_link_state', allowing the hypervisor
     to set the VF link state.

Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 2887034..6af9e3c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -2698,6 +2698,14 @@
 		bp->link_vars.duplex = DUPLEX_FULL;
 		bp->link_vars.flow_ctrl = BNX2X_FLOW_CTRL_NONE;
 		__bnx2x_link_report(bp);
+
+		bnx2x_sample_bulletin(bp);
+
+		/* if bulletin board did not have an update for link status
+		 * __bnx2x_link_report will report current status
+		 * but it will NOT duplicate report in case of already reported
+		 * during sampling bulletin board.
+		 */
 		bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
 	}
 }
@@ -12424,6 +12432,7 @@
 	.ndo_busy_poll		= bnx2x_low_latency_recv,
 #endif
 	.ndo_get_phys_port_id	= bnx2x_get_phys_port_id,
+	.ndo_set_vf_link_state	= bnx2x_set_vf_link_state,
 };
 
 static int bnx2x_set_coherency_mask(struct bnx2x *bp)