diff options
| author |   Edward Cree <ecree@solarflare.com> | 2020-07-02 17:29:58 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-02 14:47:40 -0700 |
| commit | a81dcd85a7c1bc548ce8fb635623970fdee5887d (patch) | |
| tree | 832617d7896bd2e5fcd88aa1c740c5367e8dfbee /drivers/net/ethernet/sfc/farch.c | |
| parent | sfc: commonise netif_set_real_num[tr]x_queues calls (diff) | |
| download | linux-dev-a81dcd85a7c1bc548ce8fb635623970fdee5887d.tar.xz linux-dev-a81dcd85a7c1bc548ce8fb635623970fdee5887d.zip | |
sfc: assign TXQs without gaps
Since we only allocate VIs for the number of TXQs we actually need, we
cannot naively use "channel * TXQ_TYPES + txq" for the TXQ number, as
this has gaps (when efx->tx_queues_per_channel < EFX_TXQ_TYPES) and
thus overruns the driver's VI allocations, causing the firmware to
reject the MC_CMD_INIT_TXQ based on INSTANCE.
Thus, we distinguish INSTANCE (stored in tx_queue->queue) from LABEL
(tx_queue->label); the former is allocated starting from 0 in
efx_set_channels(), while the latter is simply the txq type (index in
channel->tx_queue array).
To simplify things, rather than changing tx_queues_per_channel after
setting up TXQs, make Siena always probe its HIGHPRI queues at start
of day, rather than deferring it until tc mqprio enables them.
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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index dbbb898adddb..d07eeaad9bdf 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -379,7 +379,7 @@ int efx_farch_tx_probe(struct efx_tx_queue *tx_queue) void efx_farch_tx_init(struct efx_tx_queue *tx_queue) { - int csum = tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD; + int csum = tx_queue->label & EFX_TXQ_TYPE_OFFLOAD; struct efx_nic *efx = tx_queue->efx; efx_oword_t reg; @@ -395,7 +395,7 @@ void efx_farch_tx_init(struct efx_tx_queue *tx_queue) FRF_AZ_TX_DESCQ_EVQ_ID, tx_queue->channel->channel, FRF_AZ_TX_DESCQ_OWNER_ID, 0, - FRF_AZ_TX_DESCQ_LABEL, tx_queue->queue, + FRF_AZ_TX_DESCQ_LABEL, tx_queue->label, FRF_AZ_TX_DESCQ_SIZE, __ffs(tx_queue->txd.entries), FRF_AZ_TX_DESCQ_TYPE, 0, @@ -409,7 +409,7 @@ void efx_farch_tx_init(struct efx_tx_queue *tx_queue) EFX_POPULATE_OWORD_1(reg, FRF_BZ_TX_PACE, - (tx_queue->queue & EFX_TXQ_TYPE_HIGHPRI) ? + (tx_queue->label & EFX_TXQ_TYPE_HIGHPRI) ? FFE_BZ_TX_PACE_OFF : FFE_BZ_TX_PACE_RESERVED); efx_writeo_table(efx, ®, FR_BZ_TX_PACE_TBL, tx_queue->queue); |