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qed: Fix the VF msix vectors flow 

For VFs we should return with an error in case we didn't get the exact
number of msix vectors as we requested.
Not doing that will lead to a crash when starting queues for this VF.

Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shai Malin 2021-08-22 22:21:14 +03:00 committed by David S. Miller
parent 14315498f5
commit b0cd08537d
1 changed files with 6 additions and 1 deletions
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7
drivers/net/ethernet/qlogic/qed/qed_main.c
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@ -616,7 +616,12 @@ static int qed_enable_msix(struct qed_dev *cdev,
rc = cnt;
}
if (rc > 0) {
/* For VFs, we should return with an error in case we didn't get the
* exact number of msix vectors as we requested.
* Not doing that will lead to a crash when starting queues for
* this VF.
*/
if ((IS_PF(cdev) && rc > 0) || (IS_VF(cdev) && rc == cnt)) {
/* MSI-x configuration was achieved */
int_params->out.int_mode = QED_INT_MODE_MSIX;
int_params->out.num_vectors = rc;