diff options
| author |   Edward Cree <ecree@solarflare.com> | 2020-09-03 22:35:13 +0100 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2020-09-05 12:21:40 -0700 |
| commit | 0d8c122907d96448495700fa2c6229ab519f3252 (patch) | |
| tree | ff4777fc77920b07aa94d2ca71992e5abc57edef /drivers/net/ethernet/sfc/tx.c | |
| parent | sfc: use tx_queue->old_read_count in EF100 TX path (diff) | |
| download | linux-dev-0d8c122907d96448495700fa2c6229ab519f3252.tar.xz linux-dev-0d8c122907d96448495700fa2c6229ab519f3252.zip | |
sfc: use efx_channel_tx_[old_]fill_level() in Siena/EF10 TX datapath
Instead of open-coding the calculation with efx_tx_queue_partner(), use
the functions that iterate over numbers of queues other than 2 with
efx_for_each_channel_tx_queue().
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/sfc/tx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index c502d226371a..b868920b680c 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -59,13 +59,12 @@ u8 *efx_tx_get_copy_buffer_limited(struct efx_tx_queue *tx_queue, static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1) { - /* We need to consider both queues that the net core sees as one */ - struct efx_tx_queue *txq2 = efx_tx_queue_partner(txq1); + /* We need to consider all queues that the net core sees as one */ struct efx_nic *efx = txq1->efx; + struct efx_tx_queue *txq2; unsigned int fill_level; - fill_level = max(txq1->insert_count - txq1->old_read_count, - txq2->insert_count - txq2->old_read_count); + fill_level = efx_channel_tx_old_fill_level(txq1->channel); if (likely(fill_level < efx->txq_stop_thresh)) return; @@ -85,11 +84,10 @@ static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1) */ netif_tx_stop_queue(txq1->core_txq); smp_mb(); - txq1->old_read_count = READ_ONCE(txq1->read_count); - txq2->old_read_count = READ_ONCE(txq2->read_count); + efx_for_each_channel_tx_queue(txq2, txq1->channel) + txq2->old_read_count = READ_ONCE(txq2->read_count); - fill_level = max(txq1->insert_count - txq1->old_read_count, - txq2->insert_count - txq2->old_read_count); + fill_level = efx_channel_tx_old_fill_level(txq1->channel); EFX_WARN_ON_ONCE_PARANOID(fill_level >= efx->txq_entries); if (likely(fill_level < efx->txq_stop_thresh)) { smp_mb(); |