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sfc: Do not assume efx_nic_type::ev_fini is idempotent 

efx_fini_eventq() needs to be idempotent but EF10 firmware is
picky about queue states.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2012-10-08 18:21:51 +01:00
parent ab3b825060
commit be3fc09cdd
2 changed files with 7 additions and 0 deletions
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5
drivers/net/ethernet/sfc/efx.c
View File

@ -339,6 +339,7 @@ static void efx_init_eventq(struct efx_channel *channel)
channel->eventq_read_ptr = 0;
efx_nic_init_eventq(channel);
channel->eventq_init = true;
}
/* Enable event queue processing and NAPI */
@ -367,10 +368,14 @@ static void efx_stop_eventq(struct efx_channel *channel)
static void efx_fini_eventq(struct efx_channel *channel)
{
if (!channel->eventq_init)
return;
netif_dbg(channel->efx, drv, channel->efx->net_dev,
"chan %d fini event queue\n", channel->channel);
efx_nic_fini_eventq(channel);
channel->eventq_init = false;
}
static void efx_remove_eventq(struct efx_channel *channel)

2
drivers/net/ethernet/sfc/net_driver.h
View File

@ -356,6 +356,7 @@ enum efx_rx_alloc_method {
* @efx: Associated Efx NIC
* @channel: Channel instance number
* @type: Channel type definition
* @eventq_init: Event queue initialised flag
* @enabled: Channel enabled indicator
* @irq: IRQ number (MSI and MSI-X only)
* @irq_moderation: IRQ moderation value (in hardware ticks)
@ -387,6 +388,7 @@ struct efx_channel {
struct efx_nic *efx;
int channel;
const struct efx_channel_type *type;
bool eventq_init;
bool enabled;
int irq;
unsigned int irq_moderation;