diff options
| author |   Charles McLachlan <cmclachlan@solarflare.com> | 2019-10-31 10:23:49 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-31 14:14:53 -0700 |
| commit | 3990a8fffbdad5765f47ea593f9de66c91762059 (patch) | |
| tree | 35ca22547cac256496e40fd7c4e3d725fe056ad7 /drivers/net/ethernet/sfc/tx.c | |
| parent | sfc: Enable setting of xdp_prog (diff) | |
| download | linux-dev-3990a8fffbdad5765f47ea593f9de66c91762059.tar.xz linux-dev-3990a8fffbdad5765f47ea593f9de66c91762059.zip | |
sfc: allocate channels for XDP tx queues
Each CPU needs access to its own queue to allow uncontested
transmission of XDP_TX packets. This means we need to allocate (up
front) enough channels ("xdp transmit channels") to provide at least
one extra tx queue per CPU. These tx queues should not do TSO.
Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index 204aafb3d96a..8a5bc500d2a1 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -859,6 +859,8 @@ void efx_init_tx_queue(struct efx_tx_queue *tx_queue) tx_queue->completed_timestamp_major = 0; tx_queue->completed_timestamp_minor = 0; + tx_queue->xdp_tx = efx_channel_is_xdp_tx(tx_queue->channel); + /* Set up default function pointers. These may get replaced by * efx_nic_init_tx() based off NIC/queue capabilities. */ |