Commit 4e5e6b5d authored by Mateusz Palczewski's avatar Mateusz Palczewski Committed by Tony Nguyen

iavf: Fix return of set the new channel count

Fixed return correct code from set the new channel count.
Implemented by check if reset is done in appropriate time.
This solution give a extra time to pf for reset vf in case
when user want set new channel count for all vfs.
Without this patch it is possible to return misleading output
code to user and vf reset not to be correctly performed by pf.

Fixes: 5520deb1 ("iavf: Enable support for up to 16 queues")
Signed-off-by: default avatarGrzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: default avatarMateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: default avatarKonrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent cf4f5530
......@@ -1776,6 +1776,7 @@ static int iavf_set_channels(struct net_device *netdev,
{
struct iavf_adapter *adapter = netdev_priv(netdev);
u32 num_req = ch->combined_count;
int i;
if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
adapter->num_tc) {
......@@ -1798,6 +1799,20 @@ static int iavf_set_channels(struct net_device *netdev,
adapter->num_req_queues = num_req;
adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
iavf_schedule_reset(adapter);
/* wait for the reset is done */
for (i = 0; i < IAVF_RESET_WAIT_COMPLETE_COUNT; i++) {
msleep(IAVF_RESET_WAIT_MS);
if (adapter->flags & IAVF_FLAG_RESET_PENDING)
continue;
break;
}
if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) {
adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
adapter->num_active_queues = num_req;
return -EOPNOTSUPP;
}
return 0;
}
......
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