diff options
| author |   Edward Cree <ecree@solarflare.com> | 2018-01-25 17:26:06 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-01-25 16:05:14 -0500 |
| commit | 2935e3c38228ad9bf073eeb0eedff5849eea63db (patch) | |
| tree | 34ca28b1afdbce735a4326d077a96a8e304599ab /drivers/net/ethernet/sfc/efx.c | |
| parent | sfc: MAC TX timestamp handling on the 8000 series (diff) | |
| download | linux-dev-2935e3c38228ad9bf073eeb0eedff5849eea63db.tar.xz linux-dev-2935e3c38228ad9bf073eeb0eedff5849eea63db.zip | |
sfc: on 8000 series use TX queues for TX timestamps
For this we create and use one or more new TX queues on the PTP channel,
and enable sync events for it.
Based on a patch by Martin Habets <mhabets@solarflare.com>.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/efx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 12f0abc30cb1..456866b05641 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -896,12 +896,20 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue) mod_timer(&rx_queue->slow_fill, jiffies + msecs_to_jiffies(100)); } +bool efx_default_channel_want_txqs(struct efx_channel *channel) +{ + return channel->channel - channel->efx->tx_channel_offset < + channel->efx->n_tx_channels; +} + static const struct efx_channel_type efx_default_channel_type = { .pre_probe = efx_channel_dummy_op_int, .post_remove = efx_channel_dummy_op_void, .get_name = efx_get_channel_name, .copy = efx_copy_channel, + .want_txqs = efx_default_channel_want_txqs, .keep_eventq = false, + .want_pio = true, }; int efx_channel_dummy_op_int(struct efx_channel *channel) @@ -1501,6 +1509,7 @@ static int efx_probe_interrupts(struct efx_nic *efx) } /* Assign extra channels if possible */ + efx->n_extra_tx_channels = 0; j = efx->n_channels; for (i = 0; i < EFX_MAX_EXTRA_CHANNELS; i++) { if (!efx->extra_channel_type[i]) @@ -1512,6 +1521,8 @@ static int efx_probe_interrupts(struct efx_nic *efx) --j; efx_get_channel(efx, j)->type = efx->extra_channel_type[i]; + if (efx_channel_has_tx_queues(efx_get_channel(efx, j))) + efx->n_extra_tx_channels++; } } |