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>
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index df48f89..b3c084f 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -844,17 +844,18 @@
/* 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.
*/