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[PATCH] IB/mthca: Encapsulate command interface init

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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>
This commit is contained in:
Roland Dreier
2005-06-27 14:36:45 -07:00
committed by Linus Torvalds
parent 761f9eb8c3
commit 80fd823873
3 changed files with 30 additions and 16 deletions
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21
drivers/infiniband/hw/mthca/mthca_cmd.c
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@@ -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).