diff options
| author | Bert Kenward <bkenward@solarflare.com> | 2016-11-17 10:51:54 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-18 11:55:38 -0500 |
| commit | e9117e5099ea29592c2a6180f368951948837a8b (patch) | |
| tree | 865d0862309b88b06a249b3cc949aee1589ba7ef /drivers/net/ethernet/sfc/nic.h | |
| parent | e17705c43b4273d2587297d5f8168ee432d9c94a (diff) | |
sfc: Firmware-Assisted TSO version 2
Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task
of TCP segmentation to the firmware, such that we now just pass a single
super-packet to the NIC. This means TSO has a great deal in common with a
normal DMA transmit, apart from adding a couple of option descriptors.
NIC-specific checks have been moved off the fast path and in to
initialisation where possible.
This also moves FATSOv1/SWTSO to a new file (tx_tso.c). The end of transmit
and some error handling is now outside TSO, since it is common with other
code.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/nic.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index 73bee7ea332a..06dd96e25bb6 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -681,6 +681,8 @@ void efx_farch_tx_init(struct efx_tx_queue *tx_queue); void efx_farch_tx_fini(struct efx_tx_queue *tx_queue); void efx_farch_tx_remove(struct efx_tx_queue *tx_queue); void efx_farch_tx_write(struct efx_tx_queue *tx_queue); +unsigned int efx_farch_tx_limit_len(struct efx_tx_queue *tx_queue, + dma_addr_t dma_addr, unsigned int len); int efx_farch_rx_probe(struct efx_rx_queue *rx_queue); void efx_farch_rx_init(struct efx_rx_queue *rx_queue); void efx_farch_rx_fini(struct efx_rx_queue *rx_queue); |