[SCSI] aacraid driver update
changes:
- set aac_cache=2 as default value to avoid performance problem
(Novell bugzilla #469922)
- Dell/PERC controller boot problem fixed (RedHat bugzilla #457552)
- WWN flag added to fix SLES10 SP1/SP2 drive detection problems
- 64-bit support changes
- DECLARE_PCI_DEVICE_TABLE macro added
- controller type changes
Signed-off-by: Achim Leubner <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 1631044..d598eba 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -54,6 +54,7 @@
const unsigned long printfbufsiz = 256;
struct aac_init *init;
dma_addr_t phys;
+ unsigned long aac_max_hostphysmempages;
size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz;
@@ -90,7 +91,18 @@
init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys);
init->AdapterFibsSize = cpu_to_le32(fibsize);
init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib));
- init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
+ /*
+ * number of 4k pages of host physical memory. The aacraid fw needs
+ * this number to be less than 4gb worth of pages. New firmware doesn't
+ * have any issues with the mapping system, but older Firmware did, and
+ * had *troubles* dealing with the math overloading past 32 bits, thus
+ * we must limit this field.
+ */
+ aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12;
+ if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES)
+ init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages);
+ else
+ init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
init->InitFlags = 0;
if (dev->comm_interface == AAC_COMM_MESSAGE) {