diff options
Diffstat (limited to 'drivers/net/mlx4/main.c')
| -rw-r--r-- | drivers/net/mlx4/main.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 2765a3ce9c2..517ca34f5b3 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -969,13 +969,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct msix_entry *entries; - int nreq; + int nreq = min_t(int, dev->caps.num_ports * + min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT) + + MSIX_LEGACY_SZ, MAX_MSIX); int err; int i; if (msi_x) { nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, - num_possible_cpus() + 1); + nreq); entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); if (!entries) goto no_msi; @@ -998,7 +1000,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) goto no_msi; } - dev->caps.num_comp_vectors = nreq - 1; + 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; + } else { + dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ; + dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1; + } for (i = 0; i < nreq; ++i) priv->eq_table.eq[i].irq = entries[i].vector; @@ -1010,6 +1020,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) no_msi: dev->caps.num_comp_vectors = 1; + dev->caps.comp_pool = 0; for (i = 0; i < 2; ++i) priv->eq_table.eq[i].irq = dev->pdev->irq; @@ -1151,6 +1162,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto err_close; + priv->msix_ctl.pool_bm = 0; + spin_lock_init(&priv->msix_ctl.pool_lock); + mlx4_enable_msi_x(dev); err = mlx4_setup_hca(dev); |