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ixgbe: fix RSS limit for X550

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[ Upstream commit e9ee3238f8 ]

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 <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Emil Tantilov
2015-11-20 13:02:16 -08:00
committed by Greg Kroah-Hartman
parent fcac753bf1
commit 83662744dc
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/ixgbe/ixgbe.h
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@@ -312,7 +312,7 @@ 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