diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-05-07 12:51:12 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-05-13 01:31:40 -0400 |
| commit | b9b39b625cf57cd0ea998717598b68963cbec3cb (patch) | |
| tree | 19f358d15b6c75d660cf1ea369559f58ad9f0c1e /drivers/net/sfc/efx.c | |
| parent | 48cfb14f8b89d4d5b3df6c16f08b258686fb12ad (diff) | |
| download | talos-op-linux-b9b39b625cf57cd0ea998717598b68963cbec3cb.tar.gz talos-op-linux-b9b39b625cf57cd0ea998717598b68963cbec3cb.zip | |
[netdrvr] sfc: Add TSO support
The SFC4000 controller does not have hardware support for TSO, and the
core GSO code incurs a high cost in allocating and freeing skbs. This
TSO implementation uses lightweight packet header structures and is
substantially faster.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/sfc/efx.c')
| -rw-r--r-- | drivers/net/sfc/efx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 59edcf793c19..418f2e53a95b 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -1873,6 +1873,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, tx_queue->queue = i; tx_queue->buffer = NULL; tx_queue->channel = &efx->channel[0]; /* for safety */ + tx_queue->tso_headers_free = NULL; } for (i = 0; i < EFX_MAX_RX_QUEUES; i++) { rx_queue = &efx->rx_queue[i]; @@ -2071,7 +2072,8 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, net_dev = alloc_etherdev(sizeof(*efx)); if (!net_dev) return -ENOMEM; - net_dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA; + net_dev->features |= (NETIF_F_IP_CSUM | NETIF_F_SG | + NETIF_F_HIGHDMA | NETIF_F_TSO); if (lro) net_dev->features |= NETIF_F_LRO; efx = net_dev->priv; |
