From 66e2f9c1de5550ab8e86ec6d33bf3f4215d389b8 Mon Sep 17 00:00:00 2001 From: Alexander Gordeev Date: Tue, 18 Feb 2014 11:11:47 +0100 Subject: [PATCH] mlx4: Use pci_enable_msix_range() instead of pci_enable_msix() 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 Cc: "David S. Miller" Cc: Amir Vadai Cc: netdev@vger.kernel.org Cc: linux-pci@vger.kernel.org Acked-by: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index d711158b0d4b..218b759c506e 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) { @@ -1990,23 +1989,13 @@ 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 < - MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) { + } 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; dev->caps.num_comp_vectors = nreq - 1;