summaryrefslogtreecommitdiffstats
path: root/drivers/net/sfc/efx.c
diff options
context:
space:
mode:
authorBen Hutchings <bhutchings@solarflare.com>2008-05-07 13:51:12 +0200
committerJeff Garzik <jgarzik@redhat.com>2008-05-13 07:31:40 +0200
commitb9b39b625cf57cd0ea998717598b68963cbec3cb (patch)
tree19f358d15b6c75d660cf1ea369559f58ad9f0c1e /drivers/net/sfc/efx.c
parentehea: Add DLPAR memory remove support (diff)
downloadlinux-b9b39b625cf57cd0ea998717598b68963cbec3cb.tar.xz
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.c4
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;