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| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-12-12 21:37:02 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-12 21:57:45 -0800 |
| commit | 56536e9ce7c23bbc8519b8f99837493dea8da57d (patch) | |
| tree | 45e13f39d0a6b7f7254a474da016fc319cc5f04e | |
| parent | 28b581ab0a0aa7bc8b22935779ca3e8d6f651ac7 (diff) | |
| download | linux-56536e9ce7c23bbc8519b8f99837493dea8da57d.tar.gz linux-56536e9ce7c23bbc8519b8f99837493dea8da57d.tar.bz2 linux-56536e9ce7c23bbc8519b8f99837493dea8da57d.zip | |
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>
| -rw-r--r-- | drivers/net/sfc/efx.c | 24 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon.c | 2 | ||||
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 2 |
3 files changed, 27 insertions, 1 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 2faaa965afca..bba11490ef41 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -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; } diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 2ef876d8f233..e32be4c83d90 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -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; diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 2c5b5fabac1e..abff9084a986 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -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; |