[SCSI] hptiop: fix RR312x in hosts with >12GB
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@lxorguk.ukuu.org.uk>
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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 @@
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 @@
{
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 @@
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 @@
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 @@
.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 @@
.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[] = {