From: Michael Reed Date: Fri, 18 Sep 2009 17:02:05 +0000 (-0500) Subject: lpfc: fix hang on SGI ia64 platform X-Git-Tag: firefly_0821_release~11625^2~230 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=253f41bf6ec0c40f6364bdf211f7f7661667e4f8;p=firefly-linux-kernel-4.4.55.git lpfc: fix hang on SGI ia64 platform commit 8e68597d087977d3e4fd3e735d290ab45fd0b5ea upstream. In testing 2.6.31 on one of our ia64 platforms I've encountered a hang due to the driver using hardware ATEs which are a limited resource. This is because the driver does not set the dma consistent mask to 64 bits. Signed-off-by: Michael Reed Acked-by: James Smart Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f913f1e93635..549bc7d8a361 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4384,9 +4384,13 @@ lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) pdev = phba->pcidev; /* Set the device DMA mask size */ - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { return error; + } + } /* Get the bus address of Bar0 and Bar2 and the number of bytes * required by each mapping. @@ -5940,9 +5944,13 @@ lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) pdev = phba->pcidev; /* Set the device DMA mask size */ - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) - if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { return error; + } + } /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the * number of bytes required by each mapping. They are actually