Messages in this thread Patch in this message | | | From | leonid.ravich@dell ... | Subject | [PATCH v2 1/3] dmaengine: ioat: removing duplicate code from timeout handler | Date | Wed, 22 Apr 2020 22:25:53 +0300 |
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From: Leonid Ravich <Leonid.Ravich@emc.com>
moving duplicate code from timeout error handling to common function.
Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Leonid Ravich <Leonid.Ravich@emc.com> --- drivers/dma/ioat/dma.c | 45 +++++++++++++++++++-------------------------- 1 file changed, 19 insertions(+), 26 deletions(-)
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 1e0e6c1..da59b28 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -869,6 +869,23 @@ static void check_active(struct ioatdma_chan *ioat_chan) mod_timer(&ioat_chan->timer, jiffies + IDLE_TIMEOUT); } +static void ioat_reboot_chan(struct ioatdma_chan *ioat_chan) +{ + spin_lock_bh(&ioat_chan->prep_lock); + set_bit(IOAT_CHAN_DOWN, &ioat_chan->state); + spin_unlock_bh(&ioat_chan->prep_lock); + + ioat_abort_descs(ioat_chan); + dev_warn(to_dev(ioat_chan), "Reset channel...\n"); + ioat_reset_hw(ioat_chan); + dev_warn(to_dev(ioat_chan), "Restart channel...\n"); + ioat_restart_channel(ioat_chan); + + spin_lock_bh(&ioat_chan->prep_lock); + clear_bit(IOAT_CHAN_DOWN, &ioat_chan->state); + spin_unlock_bh(&ioat_chan->prep_lock); +} + void ioat_timer_event(struct timer_list *t) { struct ioatdma_chan *ioat_chan = from_timer(ioat_chan, t, timer); @@ -891,19 +908,7 @@ void ioat_timer_event(struct timer_list *t) if (test_bit(IOAT_RUN, &ioat_chan->state)) { spin_lock_bh(&ioat_chan->cleanup_lock); - spin_lock_bh(&ioat_chan->prep_lock); - set_bit(IOAT_CHAN_DOWN, &ioat_chan->state); - spin_unlock_bh(&ioat_chan->prep_lock); - - ioat_abort_descs(ioat_chan); - dev_warn(to_dev(ioat_chan), "Reset channel...\n"); - ioat_reset_hw(ioat_chan); - dev_warn(to_dev(ioat_chan), "Restart channel...\n"); - ioat_restart_channel(ioat_chan); - - spin_lock_bh(&ioat_chan->prep_lock); - clear_bit(IOAT_CHAN_DOWN, &ioat_chan->state); - spin_unlock_bh(&ioat_chan->prep_lock); + ioat_reboot_chan(ioat_chan); spin_unlock_bh(&ioat_chan->cleanup_lock); } @@ -939,19 +944,7 @@ void ioat_timer_event(struct timer_list *t) dev_dbg(to_dev(ioat_chan), "Active descriptors: %d\n", ioat_ring_active(ioat_chan)); - spin_lock_bh(&ioat_chan->prep_lock); - set_bit(IOAT_CHAN_DOWN, &ioat_chan->state); - spin_unlock_bh(&ioat_chan->prep_lock); - - ioat_abort_descs(ioat_chan); - dev_warn(to_dev(ioat_chan), "Resetting channel...\n"); - ioat_reset_hw(ioat_chan); - dev_warn(to_dev(ioat_chan), "Restarting channel...\n"); - ioat_restart_channel(ioat_chan); - - spin_lock_bh(&ioat_chan->prep_lock); - clear_bit(IOAT_CHAN_DOWN, &ioat_chan->state); - spin_unlock_bh(&ioat_chan->prep_lock); + ioat_reboot_chan(ioat_chan); spin_unlock_bh(&ioat_chan->cleanup_lock); return; } else -- 1.9.3
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