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| author | Roland Dreier <roland@topspin.com> | 2005-06-27 14:36:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-27 15:11:46 -0700 |
| commit | 80fd8238734c852a8ed1ea39f8444a2df33bd161 (patch) | |
| tree | d29f8f1a13c879ba991bf39096df8c009b406268 /drivers/infiniband/hw/mthca/mthca_cmd.c | |
| parent | 761f9eb8c31f72692aad118e51e2a59a80467088 (diff) | |
| download | kernel_samsung_smdk4412-80fd8238734c852a8ed1ea39f8444a2df33bd161.zip kernel_samsung_smdk4412-80fd8238734c852a8ed1ea39f8444a2df33bd161.tar.gz kernel_samsung_smdk4412-80fd8238734c852a8ed1ea39f8444a2df33bd161.tar.bz2 | |
[PATCH] IB/mthca: Encapsulate command interface init
Encapsulate mthca command interface initialization/cleanup.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_cmd.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cmd.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index cd9ed95..78d4891 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -431,6 +431,27 @@ static int mthca_cmd_imm(struct mthca_dev *dev, timeout, status); } +int mthca_cmd_init(struct mthca_dev *dev) +{ + sema_init(&dev->cmd.hcr_sem, 1); + sema_init(&dev->cmd.poll_sem, 1); + dev->cmd.use_events = 0; + + dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE, + MTHCA_HCR_SIZE); + if (!dev->hcr) { + mthca_err(dev, "Couldn't map command register."); + return -ENOMEM; + } + + return 0; +} + +void mthca_cmd_cleanup(struct mthca_dev *dev) +{ + iounmap(dev->hcr); +} + /* * Switch to using events to issue FW commands (should be called after * event queue to command events has been initialized). |