diff options
| author | Edward Cree <ecree@solarflare.com> | 2018-01-25 18:26:06 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-25 22:05:14 +0100 |
| commit | 2935e3c38228ad9bf073eeb0eedff5849eea63db (patch) | |
| tree | 34ca28b1afdbce735a4326d077a96a8e304599ab /drivers/net/ethernet/sfc/farch.c | |
| parent | sfc: MAC TX timestamp handling on the 8000 series (diff) | |
| download | linux-2935e3c38228ad9bf073eeb0eedff5849eea63db.tar.xz linux-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/farch.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/farch.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index ca79ac6d0ac3..266b9bee1f3a 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -1085,7 +1085,7 @@ efx_farch_handle_tx_flush_done(struct efx_nic *efx, efx_qword_t *event) int qid; qid = EFX_QWORD_FIELD(*event, FSF_AZ_DRIVER_EV_SUBDATA); - if (qid < EFX_TXQ_TYPES * efx->n_tx_channels) { + if (qid < EFX_TXQ_TYPES * (efx->n_tx_channels + efx->n_extra_tx_channels)) { tx_queue = efx_get_tx_queue(efx, qid / EFX_TXQ_TYPES, qid % EFX_TXQ_TYPES); if (atomic_cmpxchg(&tx_queue->flush_outstanding, 1, 0)) { @@ -1669,20 +1669,21 @@ void efx_farch_rx_pull_indir_table(struct efx_nic *efx) */ void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw) { - unsigned vi_count, buftbl_min; + unsigned vi_count, buftbl_min, total_tx_channels; #ifdef CONFIG_SFC_SRIOV struct siena_nic_data *nic_data = efx->nic_data; #endif + total_tx_channels = efx->n_tx_channels + efx->n_extra_tx_channels; /* Account for the buffer table entries backing the datapath channels * and the descriptor caches for those channels. */ buftbl_min = ((efx->n_rx_channels * EFX_MAX_DMAQ_SIZE + - efx->n_tx_channels * EFX_TXQ_TYPES * EFX_MAX_DMAQ_SIZE + + total_tx_channels * EFX_TXQ_TYPES * EFX_MAX_DMAQ_SIZE + efx->n_channels * EFX_MAX_EVQ_SIZE) * sizeof(efx_qword_t) / EFX_BUF_SIZE); - vi_count = max(efx->n_channels, efx->n_tx_channels * EFX_TXQ_TYPES); + vi_count = max(efx->n_channels, total_tx_channels * EFX_TXQ_TYPES); #ifdef CONFIG_SFC_SRIOV if (efx->type->sriov_wanted) { |