[net-next v2 04/21] ixgbe: add mask for 64 RSS queues

[Jeff Kirsher]

From: Emil Tantilov <emil.s.tanti...@intel.com>

The indirection table was reported incorrectly for X550 and newer
where we can support up to 64 RSS queues.

Reported-by Krishneil Singh <krishneil.k.si...@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tanti...@intel.com>
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
index 15ab337..10d2967 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
@@ -308,6 +308,7 @@ static void ixgbe_cache_ring_register(struct ixgbe_adapter 
*adapter)
        ixgbe_cache_ring_rss(adapter);
 }
 
+#define IXGBE_RSS_64Q_MASK     0x3F
 #define IXGBE_RSS_16Q_MASK     0xF
 #define IXGBE_RSS_8Q_MASK      0x7
 #define IXGBE_RSS_4Q_MASK      0x3
@@ -604,6 +605,7 @@ static bool ixgbe_set_sriov_queues(struct ixgbe_adapter 
*adapter)
  **/
 static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
 {
+       struct ixgbe_hw *hw = &adapter->hw;
        struct ixgbe_ring_feature *f;
        u16 rss_i;
 
@@ -612,7 +614,11 @@ static bool ixgbe_set_rss_queues(struct ixgbe_adapter 
*adapter)
        rss_i = f->limit;
 
        f->indices = rss_i;
-       f->mask = IXGBE_RSS_16Q_MASK;
+
+       if (hw->mac.type < ixgbe_mac_X550)
+               f->mask = IXGBE_RSS_16Q_MASK;
+       else
+               f->mask = IXGBE_RSS_64Q_MASK;
 
        /* disable ATR by default, it will be configured below */
        adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
-- 
2.9.3