be2net: disable RSS when number of RXQs is reduced to 1 via set-channels
When *only* the default RXQ is used, the RSS policy must be disabled so
that all IP and no-IP traffic is placed into the default RXQ. If not,
IP traffic is dropped.
Also, issue the RSS_CONFIG cmd only if FW advertises RSS capability for
the interface.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index e0e8bc1..b84902e 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2017,6 +2017,9 @@
0x3ea83c02, 0x4a110304};
int status;
+ if (!(be_if_cap_flags(adapter) & BE_IF_FLAGS_RSS))
+ return 0;
+
if (mutex_lock_interruptible(&adapter->mbox_lock))
return -1;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 0fde69d..6b774a5 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2744,13 +2744,16 @@
if (!BEx_chip(adapter))
adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
RSS_ENABLE_UDP_IPV6;
+ } else {
+ /* Disable RSS, if only default RX Q is created */
+ adapter->rss_flags = RSS_ENABLE_NONE;
+ }
- rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
- 128);
- if (rc) {
- adapter->rss_flags = 0;
- return rc;
- }
+ rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
+ 128);
+ if (rc) {
+ adapter->rss_flags = RSS_ENABLE_NONE;
+ return rc;
}
/* First time posting */