[PATCH 18/34] mlx4: Use pci_enable_msix_range()
From: Alexander Gordeev <hidden>
Date: 2014-01-31 15:15:52
Also in:
linux-pci, lkml
Subsystem:
mellanox mlx4 core vpi driver, networking drivers, the rest · Maintainers:
Tariq Toukan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> --- drivers/net/ethernet/mellanox/mlx4/main.c | 19 ++++--------------- 1 files changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index d711158..a9d1249 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c@@ -1976,7 +1976,6 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) int nreq = min_t(int, dev->caps.num_ports * min_t(int, netif_get_num_default_rss_queues() + 1, MAX_MSIX_P_PORT) + MSIX_LEGACY_SZ, MAX_MSIX); - int err; int i; if (msi_x) {
@@ -1990,22 +1989,12 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) for (i = 0; i < nreq; ++i) entries[i].entry = i; - retry: - err = pci_enable_msix(dev->pdev, entries, nreq); - if (err) { - /* Try again if at least 2 vectors are available */ - if (err > 1) { - mlx4_info(dev, "Requested %d vectors, " - "but only %d MSI-X vectors available, " - "trying again\n", nreq, err); - nreq = err; - goto retry; - } + nreq = pci_enable_msix_range(dev->pdev, entries, 2, nreq); + + if (nreq < 0) { kfree(entries); goto no_msi; - } - - if (nreq < + } else if (nreq < MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) { /*Working in legacy mode , all EQ's shared*/ dev->caps.comp_pool = 0;
--
1.7.7.6