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cxgb4: when max_tx_rate is 0 disable tx rate limiting 

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ganesh Goudar 2018-09-03 16:21:46 +05:30 committed by David S. Miller
parent 4ee5489e54
commit b5e281ab5a
1 changed files with 23 additions and 2 deletions
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25
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -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",