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sfc: Provide hints to irqbalance daemon 

Allocate IRQs with the name format <device>[-<type>]-<number> so that
future versions of irqbalanced understand what we're doing.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2008-12-12 21:37:02 -08:00 committed by David S. Miller
parent 28b581ab0a
commit 56536e9ce7
3 changed files with 27 additions and 1 deletions
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24
drivers/net/sfc/efx.c
View File

@ -356,6 +356,27 @@ static int efx_probe_channel(struct efx_channel *channel)
}
static void efx_set_channel_names(struct efx_nic *efx)
{
struct efx_channel *channel;
const char *type = "";
int number;
efx_for_each_channel(channel, efx) {
number = channel->channel;
if (efx->n_channels > efx->n_rx_queues) {
if (channel->channel < efx->n_rx_queues) {
type = "-rx";
} else {
type = "-tx";
number -= efx->n_rx_queues;
}
}
snprintf(channel->name, sizeof(channel->name),
"%s%s-%d", efx->name, type, number);
}
}
/* Channels are shutdown and reinitialised whilst the NIC is running
* to propagate configuration changes (mtu, checksum offload), or
* to clear hardware error conditions
@ -1002,6 +1023,7 @@ static int efx_probe_all(struct efx_nic *efx)
goto fail3;
}
}
efx_set_channel_names(efx);
return 0;
@ -1483,6 +1505,7 @@ static int efx_netdev_event(struct notifier_block *this,
strcpy(efx->name, net_dev->name);
efx_mtd_rename(efx);
efx_set_channel_names(efx);
}
return NOTIFY_DONE;
@ -1516,6 +1539,7 @@ static int efx_register_netdev(struct efx_nic *efx)
return rc;
}
strcpy(efx->name, net_dev->name);
efx_set_channel_names(efx);
return 0;
}

2
drivers/net/sfc/falcon.c
View File

@ -1574,7 +1574,7 @@ int falcon_init_interrupt(struct efx_nic *efx)
efx_for_each_channel(channel, efx) {
rc = request_irq(channel->irq, falcon_msi_interrupt,
IRQF_PROBE_SHARED, /* Not shared */
efx->name, channel);
channel->name, channel);
if (rc) {
EFX_ERR(efx, "failed to hook IRQ %d\n", channel->irq);
goto fail2;

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

@ -327,6 +327,7 @@ enum efx_rx_alloc_method {
*
* @efx: Associated Efx NIC
* @channel: Channel instance number
* @name: Name for channel and IRQ
* @used_flags: Channel is used by net driver
* @enabled: Channel enabled indicator
* @irq: IRQ number (MSI and MSI-X only)
@ -357,6 +358,7 @@ enum efx_rx_alloc_method {
struct efx_channel {
struct efx_nic *efx;
int channel;
char name[IFNAMSIZ + 6];
int used_flags;
bool enabled;
int irq;