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| author | Ben Hutchings <bhutchings@solarflare.com> | 2011-06-24 20:46:31 +0100 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2011-06-25 00:43:48 +0100 |
| commit | a7d529ae2158b5300e4aa16c21f1828bc864449b (patch) | |
| tree | 8a4442da3d52682945579ce76a9c075cf41a110b /drivers/net/sfc/net_driver.h | |
| parent | 4017dbdc14af1903dc9fcba4d08b89c02325069d (diff) | |
| download | linux-a7d529ae2158b5300e4aa16c21f1828bc864449b.tar.gz linux-a7d529ae2158b5300e4aa16c21f1828bc864449b.tar.bz2 linux-a7d529ae2158b5300e4aa16c21f1828bc864449b.zip | |
sfc: Allow resets to be upgraded; use atomic ops for safety
Currently an attempt to schedule any reset is ignored if a reset
is already pending. This ignores the relative scopes - if the
requested reset is greater in scope then the scheduled reset should
be upgraded accordingly.
There are also some race conditions which could lead to a reset
request being lost. Deal with them by using atomic operations on a
bitmask. This also makes tests on reset_pending easier to get right.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index e8d5f03a89fe..c422eb2ce60a 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -645,7 +645,7 @@ struct efx_filter_state; * @irq_rx_moderation: IRQ moderation time for RX event queues * @msg_enable: Log message enable flags * @state: Device state flag. Serialised by the rtnl_lock. - * @reset_pending: Pending reset method (normally RESET_TYPE_NONE) + * @reset_pending: Bitmask for pending resets * @tx_queue: TX DMA queues * @rx_queue: RX DMA queues * @channel: Channels @@ -728,7 +728,7 @@ struct efx_nic { u32 msg_enable; enum nic_state state; - enum reset_type reset_pending; + unsigned long reset_pending; struct efx_channel *channel[EFX_MAX_CHANNELS]; char channel_name[EFX_MAX_CHANNELS][IFNAMSIZ + 6]; |