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rocker: Create an ordered workqueue for FIB offload

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As explained in the previous commits, we need to process FIB entries
addition / deletion events in FIFO order or otherwise we can have a
mismatch between the kernel's FIB table and the device's.

Create an ordered workqueue for rocker to which these work items will be
submitted to.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2016-12-03 16:45:02 +01:00 committed by David S. Miller
parent 3057224e01
commit c1bb279cfa
2 changed files with 12 additions and 0 deletions
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1
drivers/net/ethernet/rocker/rocker.h
View File

@ -72,6 +72,7 @@ struct rocker {
struct rocker_dma_ring_info event_ring;
struct notifier_block fib_nb;
struct rocker_world_ops *wops;
struct workqueue_struct *rocker_owq;
void *wpriv;
};

11
drivers/net/ethernet/rocker/rocker_main.c
View File

@ -28,6 +28,7 @@
#include <linux/if_bridge.h>
#include <linux/bitops.h>
#include <linux/ctype.h>
#include <linux/workqueue.h>
#include <net/switchdev.h>
#include <net/rtnetlink.h>
#include <net/netevent.h>
@ -2754,6 +2755,13 @@ static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err_request_event_irq;
}
rocker->rocker_owq = alloc_ordered_workqueue(rocker_driver_name,
WQ_MEM_RECLAIM);
if (!rocker->rocker_owq) {
err = -ENOMEM;
goto err_alloc_ordered_workqueue;
}
rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
err = rocker_probe_ports(rocker);
@ -2771,6 +2779,8 @@ static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
err_probe_ports:
destroy_workqueue(rocker->rocker_owq);
err_alloc_ordered_workqueue:
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
err_request_event_irq:
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
@ -2799,6 +2809,7 @@ static void rocker_remove(struct pci_dev *pdev)
unregister_fib_notifier(&rocker->fib_nb);
rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
rocker_remove_ports(rocker);
destroy_workqueue(rocker->rocker_owq);
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
rocker_dma_rings_fini(rocker);