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be2net: disable RSS when number of RXQs is reduced to 1 via set-channels

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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>
This commit is contained in:
Vasundhara Volam 2014-01-06 13:02:23 +05:30 committed by David S. Miller
parent f35f76ee76
commit da1388d655
2 changed files with 12 additions and 6 deletions
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3
drivers/net/ethernet/emulex/benet/be_cmds.c
View file

@ -2017,6 +2017,9 @@ int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
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;

15
drivers/net/ethernet/emulex/benet/be_main.c
View file

@ -2744,13 +2744,16 @@ static int be_rx_qs_create(struct be_adapter *adapter)
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 */