This is a note to let you know that I've just added the patch titled
ixgbe: add mask for 64 RSS queues
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ixgbe-add-mask-for-64-rss-queues.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Nov 19 12:02:55 CET 2017
From: Emil Tantilov <emil.s.tantilov@xxxxxxxxx>
Date: Fri, 4 Nov 2016 14:03:03 -0700
Subject: ixgbe: add mask for 64 RSS queues
From: Emil Tantilov <emil.s.tantilov@xxxxxxxxx>
[ Upstream commit 2bf1a87b903bd81b1448a1cef73de59fb6c4d340 ]
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.singh@xxxxxxxxx>
Signed-off-by: Emil Tantilov <emil.s.tantilov@xxxxxxxxx>
Tested-by: Andrew Bowers <andrewx.bowers@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
@@ -307,6 +307,7 @@ static void ixgbe_cache_ring_register(st
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
@@ -602,6 +603,7 @@ static bool ixgbe_set_sriov_queues(struc
**/
static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
{
+ struct ixgbe_hw *hw = &adapter->hw;
struct ixgbe_ring_feature *f;
u16 rss_i;
@@ -610,7 +612,11 @@ static bool ixgbe_set_rss_queues(struct
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;
Patches currently in stable-queue which might be from emil.s.tantilov@xxxxxxxxx are
queue-4.4/ixgbe-handle-close-suspend-race-with-netif_device_detach-present.patch
queue-4.4/ixgbe-do-not-disable-fec-from-the-driver.patch
queue-4.4/ixgbe-fix-aer-error-handling.patch
queue-4.4/ixgbe-add-mask-for-64-rss-queues.patch