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i40e: Service request to configure bandwidth for ADq on a VF

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This patch handles the request from ADq enabled VF to allocate
bandwidth to each traffic class which means for each VSI.

Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Avinash Dayanand 2018-01-23 08:51:02 -08:00 committed by Jeff Kirsher
parent 591532d614
commit 0c483bd4b8
2 changed files with 54 additions and 3 deletions
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56
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
View File

@ -711,6 +711,7 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
struct i40e_mac_filter *f = NULL;
struct i40e_pf *pf = vf->pf;
struct i40e_vsi *vsi;
u64 max_tx_rate = 0;
int ret = 0;
vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
@ -770,8 +771,15 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
/* Set VF bandwidth if specified */
if (vf->tx_rate) {
max_tx_rate = vf->tx_rate;
} else if (vf->ch[idx].max_tx_rate) {
max_tx_rate = vf->ch[idx].max_tx_rate;
}
if (max_tx_rate) {
max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
vf->tx_rate / 50, 0, NULL);
max_tx_rate, 0, NULL);
if (ret)
dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
vf->vf_id, ret);
@ -2918,7 +2926,8 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
struct virtchnl_tc_info *tci =
(struct virtchnl_tc_info *)msg;
struct i40e_pf *pf = vf->pf;
int i, adq_request_qps = 0;
struct i40e_link_status *ls = &pf->hw.phy.link_info;
int i, adq_request_qps = 0, speed = 0;
i40e_status aq_ret = 0;
if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
@ -2979,10 +2988,51 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
}
/* get link speed in MB to validate rate limit */
switch (ls->link_speed) {
case VIRTCHNL_LINK_SPEED_100MB:
speed = SPEED_100;
break;
case VIRTCHNL_LINK_SPEED_1GB:
speed = SPEED_1000;
break;
case VIRTCHNL_LINK_SPEED_10GB:
speed = SPEED_10000;
break;
case VIRTCHNL_LINK_SPEED_20GB:
speed = SPEED_20000;
break;
case VIRTCHNL_LINK_SPEED_25GB:
speed = SPEED_25000;
break;
case VIRTCHNL_LINK_SPEED_40GB:
speed = SPEED_40000;
break;
default:
dev_err(&pf->pdev->dev,
"Cannot detect link speed\n");
aq_ret = I40E_ERR_PARAM;
goto err;
}
/* parse data from the queue channel info */
vf->num_tc = tci->num_tc;
for (i = 0; i < vf->num_tc; i++)
for (i = 0; i < vf->num_tc; i++) {
if (tci->list[i].max_tx_rate) {
if (tci->list[i].max_tx_rate > speed) {
dev_err(&pf->pdev->dev,
"Invalid max tx rate %llu specified for VF %d.",
tci->list[i].max_tx_rate,
vf->vf_id);
aq_ret = I40E_ERR_PARAM;
goto err;
} else {
vf->ch[i].max_tx_rate =
tci->list[i].max_tx_rate;
}
}
vf->ch[i].num_qps = tci->list[i].count;
}
/* set this flag only after making sure all inputs are sane */
vf->adq_enabled = true;

1
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
View File

@ -79,6 +79,7 @@ struct i40evf_channel {
u16 vsi_idx; /* index in PF struct for all channel VSIs */
u16 vsi_id; /* VSI ID used by firmware */
u16 num_qps; /* number of queue pairs requested by user */
u64 max_tx_rate; /* bandwidth rate allocation for VSIs */
};
/* VF information structure */