[PATCH net-next 13/35] i40e: Use pci_enable_msix_range() instead of pci_enable_msix()

From: Alexander Gordeev
Date: Tue Feb 18 2014 - 05:12:37 EST


As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() and pci_enable_msix_range()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
Cc: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Cc: Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx>
Cc: e1000-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 33 +++++----------------------
1 files changed, 6 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 628e917..3116861 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5856,37 +5856,16 @@ err_out:
**/
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;
}

--
1.7.7.6

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