This is a note to let you know that I've just added the patch titled
qed: Correct MSI-x for storage
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: qed-correct-msi-x-for-storage.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Sun Mar 18 16:55:33 CET 2018
From: "Mintz, Yuval" Yuval.Mintz@cavium.com Date: Wed, 5 Apr 2017 21:20:11 +0300 Subject: qed: Correct MSI-x for storage
From: "Mintz, Yuval" Yuval.Mintz@cavium.com
[ Upstream commit 2f78227874754b1e10cd348fd6e7693b0dabb3f6 ]
When qedr is enabled, qed would try dividing the msi-x vectors between L2 and RoCE, starting with L2 and providing it with sufficient vectors for its queues.
Problem is qed would also do that for storage partitions, and as those don't need queues it would lead qed to award those partitions with 0 msi-x vectors, causing them to believe theye're using INTa and preventing them from operating.
Fixes: 51ff17251c9c ("qed: Add support for RoCE hw init") Signed-off-by: Yuval Mintz Yuval.Mintz@cavium.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/qlogic/qed/qed_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -711,7 +711,8 @@ static int qed_slowpath_setup_int(struct cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors - cdev->num_hwfns;
- if (!IS_ENABLED(CONFIG_QED_RDMA)) + if (!IS_ENABLED(CONFIG_QED_RDMA) || + QED_LEADING_HWFN(cdev)->hw_info.personality != QED_PCI_ETH_ROCE) return 0;
for_each_hwfn(cdev, i)
Patches currently in stable-queue which might be from Yuval.Mintz@cavium.com are
queue-4.9/qed-always-publish-vf-link-from-leading-hwfn.patch queue-4.9/qed-fix-tm-block-ilt-allocation.patch queue-4.9/qed-correct-msi-x-for-storage.patch