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Merge branch 'sfc-siena-fix-some-efx_separate_tx_channels-errors'

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Íñigo Huguet says:

====================
sfc/siena: fix some efx_separate_tx_channels errors

Trying to load sfc driver with modparam efx_separate_tx_channels=1
resulted in errors during initialization and not being able to use the
NIC. This patches fix a few bugs and make it work again.

This has been already done for sfc, do it also for sfc_siena.
====================

Link: https://lore.kernel.org/r/20220601063603.15362-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-06-01 17:47:19 -07:00
commit 11049c9e71
2 changed files with 3 additions and 5 deletions
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6
drivers/net/ethernet/sfc/siena/efx_channels.c
View file

@ -299,6 +299,7 @@ int efx_siena_probe_interrupts(struct efx_nic *efx)
efx->n_channels = 1;
efx->n_rx_channels = 1;
efx->n_tx_channels = 1;
efx->tx_channel_offset = 0;
efx->n_xdp_channels = 0;
efx->xdp_channel_offset = efx->n_channels;
rc = pci_enable_msi(efx->pci_dev);
@ -319,6 +320,7 @@ int efx_siena_probe_interrupts(struct efx_nic *efx)
efx->n_channels = 1 + (efx_siena_separate_tx_channels ? 1 : 0);
efx->n_rx_channels = 1;
efx->n_tx_channels = 1;
efx->tx_channel_offset = 1;
efx->n_xdp_channels = 0;
efx->xdp_channel_offset = efx->n_channels;
efx->legacy_irq = efx->pci_dev->irq;
@ -958,10 +960,6 @@ int efx_siena_set_channels(struct efx_nic *efx)
struct efx_channel *channel;
int rc;
efx->tx_channel_offset =
efx_siena_separate_tx_channels ?
efx->n_channels - efx->n_tx_channels : 0;
if (efx->xdp_tx_queue_count) {
EFX_WARN_ON_PARANOID(efx->xdp_tx_queues);

2
drivers/net/ethernet/sfc/siena/net_driver.h
View file

@ -1529,7 +1529,7 @@ static inline bool efx_channel_is_xdp_tx(struct efx_channel *channel)
static inline bool efx_channel_has_tx_queues(struct efx_channel *channel)
{
return true;
return channel && channel->channel >= channel->efx->tx_channel_offset;
}
static inline unsigned int efx_channel_num_tx_queues(struct efx_channel *channel)