diff options
| author | Dhananjay Phadke <dhananjay@netxen.com> | 2008-07-21 19:44:08 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-07-22 17:52:22 -0400 |
| commit | d9e651bc06690c5a5326e8d019fa7668409bc819 (patch) | |
| tree | df3051523f4c30f5b6da4230c80e70957bb144ed /drivers/net/netxen/netxen_nic_main.c | |
| parent | c9fc891f86c062449116fde8826a0ead650e17ac (diff) | |
netxen: cut-through rx changes
NX3031 supports cut-through operation where ingress packets are
directly dma'ed into host buffers to reduce latency.
This requires larger dma buffers (2kb) and different alignemnt.
The buffer posting logic is changed a bit. The free rx buffers
are maintained in linked list, since the received reference
handles can be out of order. However rx descriptors are still
posted sequentially, indexed by producer.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index df48f89afff..b3c084f0c75 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -844,17 +844,18 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Handshake with the card before we register the devices. */ netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - if (NX_IS_REVISION_P3(revision_id)) { - adapter->hw_read_wx(adapter, - NETXEN_MIU_MN_CONTROL, &val, 4); - adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; - dev_info(&pdev->dev, "firmware running in %s mode\n", - adapter->ahw.cut_through ? "cut through" : "legacy"); - } } /* first_driver */ netxen_nic_flash_print(adapter); + if (NX_IS_REVISION_P3(revision_id)) { + adapter->hw_read_wx(adapter, + NETXEN_MIU_MN_CONTROL, &val, 4); + adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; + dev_info(&pdev->dev, "firmware running in %s mode\n", + adapter->ahw.cut_through ? "cut through" : "legacy"); + } + /* * See if the firmware gave us a virtual-physical port mapping. */ |