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i40e: Queues are reserved despite "Invalid argument" error

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Added a new local variable in the i40e_setup_tc function named
old_queue_pairs so num_queue_pairs can be restored to the correct
value in case configuring queue channels fails. Additionally, moved
the exit label in the i40e_setup_tc function so the if (need_reset)
block can be executed.
Also, fixed data packing in the i40e_setup_tc function.

Signed-off-by: Adam Ludkiewicz <adam.ludkiewicz@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:
Adam Ludkiewicz 2019-02-06 15:08:15 -08:00 • committed by Jeff Kirsher
parent 432bc23070
commit 3e957b377b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -6846,10 +6846,12 @@ static int i40e_setup_tc(struct net_device *netdev, void *type_data)
struct i40e_pf *pf = vsi->back; struct i40e_pf *pf = vsi->back;
u8 enabled_tc = 0, num_tc, hw; u8 enabled_tc = 0, num_tc, hw;
bool need_reset = false; bool need_reset = false;
int old_queue_pairs;
int ret = -EINVAL; int ret = -EINVAL;
u16 mode; u16 mode;
int i; int i;
old_queue_pairs = vsi->num_queue_pairs;
num_tc = mqprio_qopt->qopt.num_tc; num_tc = mqprio_qopt->qopt.num_tc;
hw = mqprio_qopt->qopt.hw; hw = mqprio_qopt->qopt.hw;
mode = mqprio_qopt->mode; mode = mqprio_qopt->mode;
@ -6950,6 +6952,7 @@ config_tc:
} }
ret = i40e_configure_queue_channels(vsi); ret = i40e_configure_queue_channels(vsi);
if (ret) { if (ret) {
vsi->num_queue_pairs = old_queue_pairs;
netdev_info(netdev, netdev_info(netdev,
"Failed configuring queue channels\n"); "Failed configuring queue channels\n");
need_reset = true; need_reset = true;