[E1000-devel] Reg Transmit and Receive Queue hashing in igb e1000 driver

2009-06-01 Thread vikram
All, I found this peculiar thing regarding the hashing in RSS. According to the hashing algorithm, for a particular source and destination ip address and port numbers, the packets should be always hashed to the same queue since the hashing algorithm uses only a fixed secret key in addition to the

Re: [E1000-devel] Reg Transmit and Receive Queue hashing in igb e1000 driver

2009-06-01 Thread Brandeburg, Jesse
On Mon, 1 Jun 2009, vikram wrote: I found this peculiar thing regarding the hashing in RSS. According to the hashing algorithm, for a particular source and destination ip address and port numbers, the packets should be always hashed to the same queue since the hashing algorithm uses only a

Re: [E1000-devel] Reg Transmit and Receive Queue hashing in igb e1000 driver

2009-06-01 Thread vikram
hhmm.. In the driver i am using, the secret key is fixed, its a constant 40 byte value. In the RSS, after the hashing, rss looks at one indirection table (using the hash value obtained from the hashing algo) which has the index of the CPUs. Whichever the index that hash result in, that

[E1000-devel] [Fwd: [PATCH] e1000e: io_error_detected callback should return PCI_ERS_RESULT_DISCONNECT on permanent failure]

2009-06-01 Thread Mike Mason
I forgot to copy this to e1000-devel when I posted it to netdev. Mike Mason Original Message Subject: [PATCH] e1000e: io_error_detected callback should return PCI_ERS_RESULT_DISCONNECT on permanent failure Date: Fri, 29 May 2009 14:16:40 -0700 From: Mike Mason mm...@us.ibm.com

Re: [E1000-devel] 2.6.30rc7: ksoftirqd CPU saturation (x86-64 and x86-32 both) (in-tree e1000e at fault)

2009-06-01 Thread Nix
On 1 Jun 2009, David Miller uttered the following: From: Nix n...@esperi.org.uk Date: Mon, 01 Jun 2009 01:16:26 +0100 I plan to try out 2.6.29 (and back to 2.6.25 or thereabouts) tomorrow and see if it ever worked: if it did I'll bisect for it (rendered tricky by the out-of-tree e1000e

Re: [E1000-devel] 2.6.30rc7: ksoftirqd CPU saturation (x86-64 only, not x86-32) (e1000e-related?)

2009-06-01 Thread Nix
On 1 Jun 2009, Jesse Brandeburg spake thusly: 57: 0 0 0 7654 0 0 0 0 PCI-MSI-edge gordianet-rx-0 58: 0 0 0 0 8065 0 0 0 PCI-MSI-edge gordianet-tx-0 59: 0 0 0 0 3 0 0