diff options
| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2006-05-10 17:58:41 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-05-10 15:16:57 -0700 |
| commit | ce477ae4f8c75c94587c3157deffad8219db09a0 (patch) | |
| tree | 772147685889baa627fc058ecb53a98229bfe4f7 /drivers/infiniband/hw | |
| parent | 5941d079f2c3bdf0dffed1afb8941678fcd0bcb7 (diff) | |
IB/mthca: FMR ioremap fix
Addresses for ioremap must be calculated off of pci_resource_start;
we can't directly use the bus address as seen by the HCA. Fix the
code that remaps device memory for FMR access.
Based on patch by Klaus Smolin.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_mr.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c index 25e1c1db9a4..a486dec1707 100644 --- a/drivers/infiniband/hw/mthca/mthca_mr.c +++ b/drivers/infiniband/hw/mthca/mthca_mr.c @@ -761,6 +761,7 @@ void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr) int __devinit mthca_init_mr_table(struct mthca_dev *dev) { + unsigned long addr; int err, i; err = mthca_alloc_init(&dev->mr_table.mpt_alloc, @@ -796,9 +797,12 @@ int __devinit mthca_init_mr_table(struct mthca_dev *dev) goto err_fmr_mpt; } + addr = pci_resource_start(dev->pdev, 4) + + ((pci_resource_len(dev->pdev, 4) - 1) & + dev->mr_table.mpt_base); + dev->mr_table.tavor_fmr.mpt_base = - ioremap(dev->mr_table.mpt_base, - (1 << i) * sizeof (struct mthca_mpt_entry)); + ioremap(addr, (1 << i) * sizeof(struct mthca_mpt_entry)); if (!dev->mr_table.tavor_fmr.mpt_base) { mthca_warn(dev, "MPT ioremap for FMR failed.\n"); @@ -806,9 +810,12 @@ int __devinit mthca_init_mr_table(struct mthca_dev *dev) goto err_fmr_mpt; } + addr = pci_resource_start(dev->pdev, 4) + + ((pci_resource_len(dev->pdev, 4) - 1) & + dev->mr_table.mtt_base); + dev->mr_table.tavor_fmr.mtt_base = - ioremap(dev->mr_table.mtt_base, - (1 << i) * MTHCA_MTT_SEG_SIZE); + ioremap(addr, (1 << i) * MTHCA_MTT_SEG_SIZE); if (!dev->mr_table.tavor_fmr.mtt_base) { mthca_warn(dev, "MTT ioremap for FMR failed.\n"); err = -ENOMEM; |