From: HighPoint Linux Team <linux@xxxxxxxxxxxxxxxxxx> As the limitation of RR312x's dma engine, the HBA can not access host memory over 12GB. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=14311 [alan: resurrected bug from 2009 and pushed upstream] Reported-by: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> Signed-off-by: HighPoint Linux Team <linux@xxxxxxxxxxxxxxxxxx> Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx> --- diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 10b6555..192724e 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -42,7 +42,7 @@ MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver"); static char driver_name[] = "hptiop"; static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; -static const char driver_ver[] = "v1.6 (090910)"; +static const char driver_ver[] = "v1.6 (091225)"; static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, @@ -958,6 +958,7 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, { struct Scsi_Host *host = NULL; struct hptiop_hba *hba; + struct hptiop_adapter_ops *iop_ops; struct hpt_iop_request_get_config iop_config; struct hpt_iop_request_set_config set_config; dma_addr_t start_phy; @@ -978,7 +979,8 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, pci_set_master(pcidev); /* Enable 64bit DMA if possible */ - if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) { + iop_ops = (struct hptiop_adapter_ops *)id->driver_data; + if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(iop_ops->hw_dma_bit_mask))) { if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) { printk(KERN_ERR "hptiop: fail to set dma_mask\n"); goto disable_pci_device; @@ -998,7 +1000,7 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev, hba = (struct hptiop_hba *)host->hostdata; - hba->ops = (struct hptiop_adapter_ops *)id->driver_data; + hba->ops = iop_ops; hba->pcidev = pcidev; hba->host = host; hba->initialized = 0; @@ -1239,6 +1241,7 @@ static struct hptiop_adapter_ops hptiop_itl_ops = { .iop_intr = iop_intr_itl, .post_msg = hptiop_post_msg_itl, .post_req = hptiop_post_req_itl, + .hw_dma_bit_mask = 64, }; static struct hptiop_adapter_ops hptiop_mv_ops = { @@ -1254,6 +1257,7 @@ static struct hptiop_adapter_ops hptiop_mv_ops = { .iop_intr = iop_intr_mv, .post_msg = hptiop_post_msg_mv, .post_req = hptiop_post_req_mv, + .hw_dma_bit_mask = 33, }; static struct pci_device_id hptiop_id_table[] = { diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h index 0b871c0..baa648d 100644 --- a/drivers/scsi/hptiop.h +++ b/drivers/scsi/hptiop.h @@ -297,6 +297,7 @@ struct hptiop_adapter_ops { int (*iop_intr)(struct hptiop_hba *hba); void (*post_msg)(struct hptiop_hba *hba, u32 msg); void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req); + int hw_dma_bit_mask; }; #define HPT_IOCTL_RESULT_OK 0 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
