diff mbox series

[net-next] cxgb4: when max_tx_rate is 0 disable tx rate limiting

Message ID 1535971906-31762-1-git-send-email-ganeshgr@chelsio.com
State Accepted, archived
Delegated to: David Miller
Headers show
Series [net-next] cxgb4: when max_tx_rate is 0 disable tx rate limiting | expand

Commit Message

Ganesh Goudar Sept. 3, 2018, 10:51 a.m. UTC 
in ndo_set_vf_rate() when max_tx_rate is 0 disable tx
rate limiting for that vf.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

Comments

David Miller Sept. 4, 2018, 5:10 a.m. UTC | #1 
From: Ganesh Goudar <ganeshgr@chelsio.com>
Date: Mon,  3 Sep 2018 16:21:46 +0530

> in ndo_set_vf_rate() when max_tx_rate is 0 disable tx
> rate limiting for that vf.
> 
> Signed-off-by: Casey Leedom <leedom@chelsio.com>
> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>

Applied, thanks.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 961e3087..2e1e286 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2749,6 +2749,27 @@  static int cxgb4_mgmt_set_vf_rate(struct net_device *dev, int vf,
 		return -EINVAL;
 	}
 
+	if (max_tx_rate == 0) {
+		/* unbind VF to to any Traffic Class */
+		fw_pfvf =
+		    (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) |
+		     FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_SCHEDCLASS_ETH));
+		fw_class = 0xffffffff;
+		ret = t4_set_params(adap, adap->mbox, adap->pf, vf + 1, 1,
+				    &fw_pfvf, &fw_class);
+		if (ret) {
+			dev_err(adap->pdev_dev,
+				"Err %d in unbinding PF %d VF %d from TX Rate Limiting\n",
+				ret, adap->pf, vf);
+			return -EINVAL;
+		}
+		dev_info(adap->pdev_dev,
+			 "PF %d VF %d is unbound from TX Rate Limiting\n",
+			 adap->pf, vf);
+		adap->vfinfo[vf].tx_rate = 0;
+		return 0;
+	}
+
 	ret = t4_get_link_params(pi, &link_ok, &speed, &mtu);
 	if (ret != FW_SUCCESS) {
 		dev_err(adap->pdev_dev,
@@ -2798,8 +2819,8 @@  static int cxgb4_mgmt_set_vf_rate(struct net_device *dev, int vf,
 			    &fw_class);
 	if (ret) {
 		dev_err(adap->pdev_dev,
-			"Err %d in binding VF %d to Traffic Class %d\n",
-			ret, vf, class_id);
+			"Err %d in binding PF %d VF %d to Traffic Class %d\n",
+			ret, adap->pf, vf, class_id);
 		return -EINVAL;
 	}
 	dev_info(adap->pdev_dev, "PF %d VF %d is bound to Class %d\n",