diff mbox series

[net-next,12/15] igb: Enable RSS for Intel I211 Ethernet Controller

Message ID 20210204004259.3662059-13-anthony.l.nguyen@intel.com (mailing list archive)
State Accepted
Commit 6e6026f2dd2005844fb35c3911e8083c09952c6c
Delegated to: Netdev Maintainers
Headers show
Series 1GbE Intel Wired LAN Driver Updates 2021-02-03 | expand

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netdev/cc_maintainers warning 2 maintainers not CCed: jesse.brandeburg@intel.com intel-wired-lan@lists.osuosl.org
netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 17 this patch: 17
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 9 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 17 this patch: 17
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Tony Nguyen Feb. 4, 2021, 12:42 a.m. UTC 
From: Nick Lowe <nick.lowe@gmail.com>

The Intel I211 Ethernet Controller supports 2 Receive Side Scaling (RSS)
queues. It should not be excluded from having this feature enabled.

Via commit c883de9fd787 ("igb: rename igb define to be more generic")
E1000_MRQC_ENABLE_RSS_4Q was renamed to E1000_MRQC_ENABLE_RSS_MQ to
indicate that this is a generic bit flag to enable queues and not
a flag that is specific to devices that support 4 queues

The bit flag enables 2, 4 or 8 queues appropriately depending on the part.

Tested with a multicore CPU and frames were then distributed as expected.

This issue appears to have been introduced because of confusion caused
by the prior name.

Signed-off-by: Nick Lowe <nick.lowe@gmail.com>
Tested-by: David Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index d6090faaa41d..23e50de94474 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4482,8 +4482,7 @@  static void igb_setup_mrqc(struct igb_adapter *adapter)
 		else
 			mrqc |= E1000_MRQC_ENABLE_VMDQ;
 	} else {
-		if (hw->mac.type != e1000_i211)
-			mrqc |= E1000_MRQC_ENABLE_RSS_MQ;
+		mrqc |= E1000_MRQC_ENABLE_RSS_MQ;
 	}
 	igb_vmm_control(adapter);