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Commit da1388d6 authored by Vasundhara Volam's avatar Vasundhara Volam Committed by David S. Miller
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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: default avatarVasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: default avatarSathya Perla <sathya.perla@emulex.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f35f76ee

drivers/net/ethernet/emulex/benet/be_cmds.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/ethernet/emulex/benet/be_main.c

+9 −6
Original line number Diff line number Diff line
@@ -2744,14 +2744,17 @@ 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;

		adapter->rss_flags = RSS_ENABLE_NONE;

		return rc;

	}

	}



	/* First time posting */

	for_all_rx_queues(adapter, rxo, i)