This is a note to let you know that I've just added the patch titled
[PATCH 023/135] fm10k: reinitialize queuing scheme after calling
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:
0023-fm10k-reinitialize-queuing-scheme-after-calling-init.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 5c571b333ac3ff510b59a843675b450e72dc8543 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Date: Fri, 16 Oct 2015 10:56:59 -0700
Subject: [PATCH 023/135] fm10k: reinitialize queuing scheme after calling
init_hw
[ Upstream commit 875328e4bce696e85edcda3c4b0ec80fd525e3a3 ]
The init_hw function may fail, and in the case of VFs, it might change
the number of maximum queues available. Thus, for every flow which
checks init_hw, we need to ensure that we clear the queue scheme before,
and initialize it after. The fm10k_io_slot_reset path will end up
triggering a reset so fm10k_reinit needs this change. The
fm10k_io_error_detected and fm10k_io_resume also need to properly clear
and reinitialize the queue scheme.
Signed-off-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Reviewed-by: Bruce Allan <bruce.w.allan@xxxxxxxxx>
Tested-by: Krishneil Singh <Krishneil.k.singh@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/fm10k/fm10k_pci.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -159,6 +159,9 @@ static void fm10k_reinit(struct fm10k_in
fm10k_mbx_free_irq(interface);
+ /* free interrupts */
+ fm10k_clear_queueing_scheme(interface);
+
/* delay any future reset requests */
interface->last_reset = jiffies + (10 * HZ);
@@ -175,6 +178,12 @@ static void fm10k_reinit(struct fm10k_in
goto reinit_err;
}
+ err = fm10k_init_queueing_scheme(interface);
+ if (err) {
+ dev_err(&interface->pdev->dev, "init_queueing_scheme failed: %d\n", err);
+ goto reinit_err;
+ }
+
/* reassociate interrupts */
fm10k_mbx_request_irq(interface);
@@ -2205,6 +2214,9 @@ static pci_ers_result_t fm10k_io_error_d
if (netif_running(netdev))
fm10k_close(netdev);
+ /* free interrupts */
+ fm10k_clear_queueing_scheme(interface);
+
fm10k_mbx_free_irq(interface);
pci_disable_device(pdev);
@@ -2277,6 +2289,12 @@ static void fm10k_io_resume(struct pci_d
/* reset statistics starting values */
hw->mac.ops.rebind_hw_stats(hw, &interface->stats);
+ err = fm10k_init_queueing_scheme(interface);
+ if (err) {
+ dev_err(&interface->pdev->dev, "init_queueing_scheme failed: %d\n", err);
+ return;
+ }
+
/* reassociate interrupts */
fm10k_mbx_request_irq(interface);
Patches currently in stable-queue which might be from jacob.e.keller@xxxxxxxxx are
queue-4.4/0022-fm10k-always-check-init_hw-for-errors.patch
queue-4.4/0021-fm10k-reset-max_queues-on-init_hw_vf-failure.patch
queue-4.4/0023-fm10k-reinitialize-queuing-scheme-after-calling-init.patch
queue-4.4/0018-fm10k-do-not-assume-VF-always-has-1-queue.patch
queue-4.4/0019-fm10k-Correct-MTU-for-jumbo-frames.patch
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