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-rw-r--r--drivers/net/ethernet/intel/igb/e1000_regs.h1
-rw-r--r--drivers/net/ethernet/intel/igb/igb_main.c5
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h
index 35d1e4f2c92c..10efcd88dca0 100644
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -117,6 +117,7 @@
/* TX Rate Limit Registers */
#define E1000_RTTDQSEL 0x3604 /* Tx Desc Plane Queue Select - WO */
+#define E1000_RTTBCNRM 0x3690 /* Tx BCN Rate-scheduler MMW */
#define E1000_RTTBCNRC 0x36B0 /* Tx BCN Rate-Scheduler Config - WO */
/* Split and Replication RX Control - RW */
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index dd3bfe8cd36c..64090549722d 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6997,6 +6997,11 @@ static void igb_set_vf_rate_limit(struct e1000_hw *hw, int vf, int tx_rate,
}
wr32(E1000_RTTDQSEL, vf); /* vf X uses queue X */
+ /*
+ * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
+ * register. MMW_SIZE=0x014 if 9728-byte jumbo is supported.
+ */
+ wr32(E1000_RTTBCNRM, 0x14);
wr32(E1000_RTTBCNRC, bcnrc_val);
}