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[next,S35,08/14] i40e: Add message for unsupported MFP mode

Message ID 1460639974-2556-9-git-send-email-harshitha.ramamurthy@intel.com
State Changes Requested
Headers show

Commit Message

Harshitha Ramamurthy April 14, 2016, 1:19 p.m. UTC 
From: Carolyn Wyborny <carolyn.wyborny@intel.com>

This patch adds a check and message if the device is in
MFP mode as changing RSS input set is not supported in
MFP mode per the DCR.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Change-Id: I4c066c6124fd77ce9d3587ac1164e07b49c49d89
---
Testing Hints : Check that trying to
change RSS Hash options with ethtool returns a not
supported message.  There should also be a similar
message in the log.

 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox

Patch

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 3409702..35c211f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -2318,6 +2318,12 @@  static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 	u8 flow_pctype = 0;
 	u64 i_set, i_setc;
 
+	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
+		dev_err(&pf->pdev->dev,
+			"Change of RSS hash input set is not supported when MFP mode is enabled\n");
+		return -EOPNOTSUPP;
+	}
+
 	/* RSS does not support anything other than hashing
 	 * to queues on src and dst IPs and ports
 	 */