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authorSteven Whitehouse <swhiteho@redhat.com>2006-07-05 08:27:42 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-07-05 08:27:42 -0400
commitcf57a308436653f3094590202c77459aab250ff3 (patch)
tree8a9e7096e494141911147a1f24865c3d79d583c1 /drivers/scsi/aacraid/comminit.c
parentfaac9bd0e3ce7cb0572ec66e0a426cacf6afa970 (diff)
parentca78f6baca863afe2e6a244a0fe94b3a70211d46 (diff)
Merge branch 'master'
Diffstat (limited to 'drivers/scsi/aacraid/comminit.c')
-rw-r--r--drivers/scsi/aacraid/comminit.c26
1 files changed, 1 insertions, 25 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 7cea514e810a..1cd3584ba7ff 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -92,31 +92,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
92 init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys); 92 init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys);
93 init->AdapterFibsSize = cpu_to_le32(fibsize); 93 init->AdapterFibsSize = cpu_to_le32(fibsize);
94 init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib)); 94 init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib));
95 /* 95 init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
96 * number of 4k pages of host physical memory. The aacraid fw needs
97 * this number to be less than 4gb worth of pages. num_physpages is in
98 * system page units. New firmware doesn't have any issues with the
99 * mapping system, but older Firmware did, and had *troubles* dealing
100 * with the math overloading past 32 bits, thus we must limit this
101 * field.
102 *
103 * This assumes the memory is mapped zero->n, which isnt
104 * always true on real computers. It also has some slight problems
105 * with the GART on x86-64. I've btw never tried DMA from PCI space
106 * on this platform but don't be surprised if its problematic.
107 * [AK: something is very very wrong when a driver tests this symbol.
108 * Someone should figure out what the comment writer really meant here and fix
109 * the code. Or just remove that bad code. ]
110 */
111#ifndef CONFIG_IOMMU
112 if ((num_physpages << (PAGE_SHIFT - 12)) <= AAC_MAX_HOSTPHYSMEMPAGES) {
113 init->HostPhysMemPages =
114 cpu_to_le32(num_physpages << (PAGE_SHIFT-12));
115 } else
116#endif
117 {
118 init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
119 }
120 96
121 init->InitFlags = 0; 97 init->InitFlags = 0;
122 if (dev->new_comm_interface) { 98 if (dev->new_comm_interface) {