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| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2006-01-30 15:20:35 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-01-30 15:20:35 -0800 |
| commit | cbd2981a97cb628431a987a8abd1731c74bcc32e (patch) | |
| tree | baab72dfd2f1c1259c157dc5a11dd2732ae20884 /drivers/infiniband/hw/mthca/mthca_main.c | |
| parent | f9e61929e5e1dacc2afefbde6abc3e6571ca2887 (diff) | |
| download | kernel_samsung_smdk4412-cbd2981a97cb628431a987a8abd1731c74bcc32e.zip kernel_samsung_smdk4412-cbd2981a97cb628431a987a8abd1731c74bcc32e.tar.gz kernel_samsung_smdk4412-cbd2981a97cb628431a987a8abd1731c74bcc32e.tar.bz2 | |
IB/mthca: Relax UAR size check
There are some cards around that have UAR (user access region) size
different from 8 MB. Relax our sanity check to make sure that the PCI
BAR is big enough to access the UAR size reported by the device
firmware instead.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_main.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_main.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 8b00d9a..9c849d2 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -155,6 +155,13 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim return -ENODEV; } + if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { + mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " + "PCI resource 2 size of 0x%lx, aborting.\n", + dev_lim->uar_size, pci_resource_len(mdev->pdev, 2)); + return -ENODEV; + } + mdev->limits.num_ports = dev_lim->num_ports; mdev->limits.vl_cap = dev_lim->max_vl; mdev->limits.mtu_cap = dev_lim->max_mtu; @@ -976,8 +983,7 @@ static int __devinit mthca_init_one(struct pci_dev *pdev, err = -ENODEV; goto err_disable_pdev; } - if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) || - pci_resource_len(pdev, 2) != 1 << 23) { + if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { dev_err(&pdev->dev, "Missing UAR, aborting.\n"); err = -ENODEV; goto err_disable_pdev; |