From e9ee3238f8a480bbca58e51d02a93628d7c1f265 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Fri, 20 Nov 2015 13:02:16 -0800 Subject: [PATCH] ixgbe: fix RSS limit for X550 X550 allows for up to 64 RSS queues, but the driver can have max of 63 (-1 MSIX vector for link). On systems with >= 64 CPUs the driver will set the redirection table for all 64 queues which will result in packets being dropped. Signed-off-by: Emil Tantilov Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index f4c9a42dafcf..4b9156cd8b93 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -317,7 +317,7 @@ enum ixgbe_ring_f_enum { }; #define IXGBE_MAX_RSS_INDICES 16 -#define IXGBE_MAX_RSS_INDICES_X550 64 +#define IXGBE_MAX_RSS_INDICES_X550 63 #define IXGBE_MAX_VMDQ_INDICES 64 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */ #define IXGBE_MAX_FCOE_INDICES 8