**/
static int i40e_reserve_msix_vectors(struct i40e_pf *pf, int vectors)
{
- int err = 0;
-
- pf->num_msix_entries = 0;
- while (vectors >= I40E_MIN_MSIX) {
- err = pci_enable_msix(pf->pdev, pf->msix_entries, vectors);
- if (err == 0) {
- /* good to go */
- pf->num_msix_entries = vectors;
- break;
- } else if (err < 0) {
- /* total failure */
- dev_info(&pf->pdev->dev,
- "MSI-X vector reservation failed: %d\n", err);
- vectors = 0;
- break;
- } else {
- /* err > 0 is the hint for retry */
- dev_info(&pf->pdev->dev,
- "MSI-X vectors wanted %d, retrying with %d\n",
- vectors, err);
- vectors = err;
- }
- }
-
- if (vectors > 0 && vectors < I40E_MIN_MSIX) {
+ vectors = pci_enable_msix_range(pf->pdev, pf->msix_entries,
+ I40E_MIN_MSIX, vectors);
+ if (vectors < 0) {
dev_info(&pf->pdev->dev,
- "Couldn't get enough vectors, only %d available\n",
- vectors);
+ "MSI-X vector reservation failed: %d\n", vectors);
vectors = 0;
}
+ pf->num_msix_entries = vectors;
+
return vectors;
}