d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cxgbetool(8): Add a subaction (tcbrss <n>) that can be used with "pass"

Browse Source 
action to distribute traffic using the half of the VI's RSS indirection
table.

The value specified should either be the start of the VI's RSS slice
(available at dev.<ifname>.<inst>.rss_base since r339700) or the
midpoint (rss_base + rss_size/2).  The traffic that hits the filter will
use the first or second half of the indirection table respectively.
The indirection table can be populated in different ways to achieve
different kinds of traffic/load distributions.  For example, r339749
allows a netmap interface to have half the rx queues in the first half
of the table and the rest in the other.

Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2018-10-27 05:26:09 +00:00
parent 1a5995cc88
commit 9edef078cc
1 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
usr.sbin/cxgbetool/cxgbetool.c
View File

@ -924,7 +924,7 @@ do_show_one_filter_info(struct t4_filter *t, uint32_t mode)
if (t->fs.dirsteer == 0) {
printf("RSS");
if (t->fs.maskhash)
printf("(TCB=hash)");
printf("(region %d)", t->fs.iq << 1);
} else {
printf("%d", t->fs.iq);
if (t->fs.dirsteerhash == 0)
@ -1263,11 +1263,19 @@ set_filter(uint32_t idx, int argc, const char *argv[], int hash)
} else if (!parse_val("rpttid", args, &val)) {
t.fs.rpttid = 1;
} else if (!parse_val("queue", args, &val)) {
t.fs.dirsteer = 1;
t.fs.iq = val;
t.fs.dirsteer = 1; /* direct steer */
t.fs.iq = val; /* to the iq with this cntxt_id */
} else if (!parse_val("tcbhash", args, &val)) {
t.fs.maskhash = 1;
t.fs.dirsteerhash = 1;
t.fs.dirsteerhash = 1; /* direct steer */
/* XXX: use (val << 1) as the rss_hash? */
t.fs.iq = val;
} else if (!parse_val("tcbrss", args, &val)) {
t.fs.maskhash = 1; /* steer to RSS region */
/*
* val = start idx of the region but the internal TCB
* field is 10b only and is left shifted by 1 before use.
*/
t.fs.iq = val >> 1;
} else if (!parse_val("eport", args, &val)) {
t.fs.eport = val;
} else if (!parse_val("swapmac", args, &val)) {