Date: Tue, 19 May 2009 11:31:02 +0200 From: Pascal Braun <pascal.braun@continum.net> To: freebsd-current@freebsd.org Subject: Problems with jumbo frames on nfe Message-ID: <4A127C56.6040502@continum.net>
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Hi,
I'm currently testing jumbo frames on a Sunfire 4540 running with
FreeBSD 8-Current (build on April 8th). While using the nfe driver I'm
having some unexpected problems if i try to bring up the interface with
MTU sizes greater than 1970 bytes.
The error message (in dmesg) is:
nfe2: initialization failed: no memory for rx buffers
I tried to deactivate checksum offloading with -rxcsum -txcsum, but that
didn't help either.
If I change the mtu size on-the-fly without bringing the interface down
first, no error is logged. But the interface just isn't working.
Does anyone have any ideas how to get jumbo frames working?
Regards
Pascal
-- pciconf -lv --
nfe0@pci0:0:8:0: class=0x068000 card=0xcb8410de chip=0x037310de
rev=0xa3 hdr=0x00
vendor = 'Nvidia Corp'
device = 'MCP55 Ethernet'
class = bridge
nfe1@pci0:0:9:0: class=0x068000 card=0xcb8410de chip=0x037310de
rev=0xa3 hdr=0x00
vendor = 'Nvidia Corp'
device = 'MCP55 Ethernet'
class = bridge
nfe2@pci0:64:8:0: class=0x068000 card=0xcb8410de chip=0x037310de
rev=0xa3 hdr=0x00
vendor = 'Nvidia Corp'
device = 'MCP55 Ethernet'
class = bridge
nfe3@pci0:64:9:0: class=0x068000 card=0xcb8410de chip=0x037310de
rev=0xa3 hdr=0x00
vendor = 'Nvidia Corp'
device = 'MCP55 Ethernet'
class = bridge
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