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wctc4xxp: Make sure we call the pci_enable_mwi() function.

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I've not seen this directly tied to any issue, but it's enabled on the voicebus
cards and so brings the wctc4xxp driver in line.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
This commit is contained in:
Shaun Ruffell 2014-05-15 12:39:38 -05:00 committed by Russ Meyerriecks
parent 15ff405dc8
commit 039daca12e
1 changed files with 8 additions and 0 deletions
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8
drivers/dahdi/wctc4xxp/base.c
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@ -3462,6 +3462,7 @@ wctc4xxp_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_resource_len(wc->pdev, 1));
if (wc->iobase)
pci_iounmap(wc->pdev, wc->iobase);
pci_clear_mwi(wc->pdev);
dev_warn(&wc->pdev->dev, "No suitable DMA available.\n");
return -EIO;
}
@ -3564,6 +3565,11 @@ wctc4xxp_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_err(&wc->pdev->dev, "Failed to enable device.\n");
goto error_exit_swinit;;
}
res = pci_set_mwi(wc->pdev);
if (res) {
dev_warn(&wc->pdev->dev,
"Failed to set Memory-Write Invalidate Command Bit..\n");
}
pci_set_master(pdev);
pci_set_drvdata(pdev, wc);
res = request_irq(pdev->irq, wctc4xxp_interrupt,
@ -3635,6 +3641,7 @@ error_exit_swinit:
pci_resource_len(wc->pdev, 1));
if (wc->iobase)
pci_iounmap(wc->pdev, wc->iobase);
pci_clear_mwi(wc->pdev);
wctc4xxp_remove_from_device_list(wc);
kfree(wc);
return res;
@ -3693,6 +3700,7 @@ static void __devexit wctc4xxp_remove_one(struct pci_dev *pdev)
pci_resource_len(wc->pdev, 1));
if (wc->iobase)
pci_iounmap(wc->pdev, wc->iobase);
pci_clear_mwi(wc->pdev);
wctc4xxp_cleanup_descriptor_ring(wc->txd);
kfree(wc->txd);
wctc4xxp_cleanup_descriptor_ring(wc->rxd);