Author: np
Date: Mon Oct 19 21:11:49 2020
New Revision: 366862
URL: https://svnweb.freebsd.org/changeset/base/366862
Log:
cxgbe(4): Updates to the drop features from r366532.
MFC after: 1 week
Sponsored by: Chelsio Communications
Modified:
head/share/man/man4/cxgbe.4
head/sys/dev/cxgbe/t4_main.c
Modified: head/share/man/man4/cxgbe.4
==============================================================================
--- head/share/man/man4/cxgbe.4 Mon Oct 19 20:43:29 2020 (r366861)
+++ head/share/man/man4/cxgbe.4 Mon Oct 19 21:11:49 2020 (r366862)
@@ -31,7 +31,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd October 8, 2020
+.Dd October 19, 2020
.Dt CXGBE 4
.Os
.Sh NAME
@@ -369,6 +369,7 @@ The attack filter will drop an incoming frame if any o
true: src ip/ip6 == dst ip/ip6; tcp and src/dst ip is not unicast; src/dst ip
is
loopback (127.x.y.z); src ip6 is not unicast; src/dst ip6 is loopback (::1/128)
or unspecified (::/128); tcp and src/dst ip6 is mcast (ff00::/8).
+This facility is available on T4 and T5 based cards only.
.It Va hw.cxgbe.drop_ip_fragments
Set to 1 to drop all incoming IP fragments.
Default is 0.
@@ -378,9 +379,11 @@ Set to 1 to drop incoming frames with Layer 2 length o
Default is 1.
.It Va hw.cxgbe.drop_pkts_with_l3_errors
Set to 1 to drop incoming frames with IP version, length, or checksum errors.
+The IP checksum is validated for TCP or UDP packets only.
Default is 0.
.It Va hw.cxgbe.drop_pkts_with_l4_errors
-Set to 1 to drop incoming frames with Layer 4 length, checksum, or other
errors.
+Set to 1 to drop incoming frames with Layer 4 (TCP or UDP) length,
+checksum, or other errors.
Default is 0.
.El
.Sh SUPPORT
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Mon Oct 19 20:43:29 2020
(r366861)
+++ head/sys/dev/cxgbe/t4_main.c Mon Oct 19 21:11:49 2020
(r366862)
@@ -4823,7 +4823,7 @@ set_params__post_init(struct adapter *sc)
F_DROPERRORIPHDRLEN | F_DROPERRORTCPHDRLEN | F_DROPERRORPKTLEN |
F_DROPERRORTCPOPT | F_DROPERRORCSUMIP | F_DROPERRORCSUM;
val = 0;
- if (t4_attack_filter != 0) {
+ if (chip_id(sc) < CHELSIO_T6 && t4_attack_filter != 0) {
t4_set_reg_field(sc, A_TP_GLOBAL_CONFIG, F_ATTACKFILTERENABLE,
F_ATTACKFILTERENABLE);
val |= F_DROPERRORATTACK;
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