From: Jiri Pirko <j...@mellanox.com>
During qdisc creation it is possible to specify shared block for bot
ingress and egress. Pass this values to kernel according to the command
line options.
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
man/man8/tc.8 | 6 +++++-
tc/tc_qdisc.c | 36 ++++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/man/man8/tc.8 b/man/man8/tc.8
index d65f0583..5ffea373 100644
--- a/man/man8/tc.8
+++ b/man/man8/tc.8
@@ -11,7 +11,11 @@ tc \- show / manipulate traffic control settings
\fIqdisc-id\fR
.B | root ]
.B [ handle
-\fIqdisc-id\fR ] qdisc
+\fIqdisc-id\fR ]
+.B [ ingress_block
+\fIBLOCK_INDEX\fR ]
+.B [ egress_block
+\fIBLOCK_INDEX\fR ] qdisc
[ qdisc specific parameters ]
.P
diff --git a/tc/tc_qdisc.c b/tc/tc_qdisc.c
index 54701c26..8cc4b73d 100644
--- a/tc/tc_qdisc.c
+++ b/tc/tc_qdisc.c
@@ -31,6 +31,7 @@ static int usage(void)
fprintf(stderr, " [ handle QHANDLE ] [ root | ingress | clsact |
parent CLASSID ]\n");
fprintf(stderr, " [ estimator INTERVAL TIME_CONSTANT ]\n");
fprintf(stderr, " [ stab [ help | STAB_OPTIONS] ]\n");
+ fprintf(stderr, " [ ingress_block BLOCK_INDEX ] [ egress_block
BLOCK_INDEX ]\n");
fprintf(stderr, " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n");
fprintf(stderr, "\n");
fprintf(stderr, " tc qdisc show [ dev STRING ] [ ingress | clsact
] [ invisible ]\n");
@@ -61,6 +62,8 @@ static int tc_qdisc_modify(int cmd, unsigned int flags, int
argc, char **argv)
.n.nlmsg_type = cmd,
.t.tcm_family = AF_UNSPEC,
};
+ __u32 ingress_block = 0;
+ __u32 egress_block = 0;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
@@ -121,6 +124,14 @@ static int tc_qdisc_modify(int cmd, unsigned int flags,
int argc, char **argv)
if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
return -1;
continue;
+ } else if (matches(*argv, "ingress_block") == 0) {
+ NEXT_ARG();
+ if (get_u32(&ingress_block, *argv, 0) || !ingress_block)
+ invarg("invalid ingress block index value",
*argv);
+ } else if (matches(*argv, "egress_block") == 0) {
+ NEXT_ARG();
+ if (get_u32(&egress_block, *argv, 0) || !egress_block)
+ invarg("invalid egress block index value",
*argv);
} else if (matches(*argv, "help") == 0) {
usage();
} else {
@@ -138,6 +149,13 @@ static int tc_qdisc_modify(int cmd, unsigned int flags,
int argc, char **argv)
if (est.ewma_log)
addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
+ if (ingress_block)
+ addattr32(&req.n, sizeof(req),
+ TCA_INGRESS_BLOCK, ingress_block);
+ if (egress_block)
+ addattr32(&req.n, sizeof(req),
+ TCA_EGRESS_BLOCK, egress_block);
+
if (q) {
if (q->parse_qopt) {
if (q->parse_qopt(q, argc, argv, &req.n, d))
@@ -270,6 +288,24 @@ int print_qdisc(const struct sockaddr_nl *who,
(rta_getattr_u8(tb[TCA_HW_OFFLOAD])))
print_bool(PRINT_ANY, "offloaded", "offloaded ", true);
+ if (tb[TCA_INGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_INGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_INGRESS_BLOCK]);
+
+ if (block)
+ print_uint(PRINT_ANY, "ingress_block",
+ "ingress_block %u ", block);
+ }
+
+ if (tb[TCA_EGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_EGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_EGRESS_BLOCK]);
+
+ if (block)
+ print_uint(PRINT_ANY, "egress_block",
+ "egress_block %u ", block);
+ }
+
/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
if (strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])) == 0)
q = get_qdisc_kind("prio");
--
2.14.3
