diff options
| author | adrian <adrian@FreeBSD.org> | 2014-07-18 08:22:13 +0000 |
|---|---|---|
| committer | adrian <adrian@FreeBSD.org> | 2014-07-18 08:22:13 +0000 |
| commit | 036f4e134053e5698cbd615fa238881fec7abbcc (patch) | |
| tree | de6555847c1a35dd2c5c33626876f2c4c521f42b /sys/netinet | |
| parent | 736f6d5f7bb39a355c9a56506a2662cee704451b (diff) | |
| download | FreeBSD-src-036f4e134053e5698cbd615fa238881fec7abbcc.zip FreeBSD-src-036f4e134053e5698cbd615fa238881fec7abbcc.tar.gz | |
Update the default RSS hash to the Chelsio T5 firmware one - it provides
markedly better distribution of IPv6 address/ports than the previous key.
The previous key would hash large swaths of the port space for a given
source/destination IP address to the same low handful of bits, effectively
mapping them to the same queue. This made testing very .. special.
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/in_rss.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/netinet/in_rss.c b/sys/netinet/in_rss.c index fac083e..7bf63c6 100644 --- a/sys/netinet/in_rss.c +++ b/sys/netinet/in_rss.c @@ -149,16 +149,16 @@ SYSCTL_INT(_net_inet_rss, OID_AUTO, basecpu, CTLFLAG_RD, * * XXXRW: And that we don't randomize it yet! * - * XXXRW: This default is actually the default key from Chelsio T3 cards, as + * XXXRW: This default is actually the default key from Chelsio T5 cards, as * it offers reasonable distribution, unlike all-0 keys which always * generate a hash of 0 (upsettingly). */ -static uint8_t rss_key[RSS_KEYSIZE] = { +static uint8_t rss_key[RSS_KEYSIZE] = { + 0xbe, 0xac, 0x01, 0xfa, 0x6a, 0x42, 0xb7, 0x3b, + 0x80, 0x30, 0xf2, 0x0c, 0x77, 0xcb, 0x2d, 0xa3, + 0xae, 0x7b, 0x30, 0xb4, 0xd0, 0xca, 0x2b, 0xcb, 0x43, 0xa3, 0x8f, 0xb0, 0x41, 0x67, 0x25, 0x3d, 0x25, 0x5b, 0x0e, 0xc2, 0x6d, 0x5a, 0x56, 0xda, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; /* |
