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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-06 14:03:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-06 14:03:44 -0700
commitf63bafe55654caf3a62f73500eafd1b89ca6f7ff (patch)
treed8c80b71e1197fb805c07282139377e9542421ea /drivers/ieee1394
parent4148df9b0f38bdd362dd91d52076926c11cbe5a9 (diff)
parentebbb16bffa646f853899ef3fdc0ac7abab888703 (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: sbp2: add support for disks >2 TB (and 16 bytes long CDBs) firewire: sbp2: add support for disks >2 TB (and 16 bytes long CDBs) firewire: core: do not DMA-map stack addresses
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/sbp2.c1
-rw-r--r--drivers/ieee1394/sbp2.h8
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 83b734aec92..52b25f8b111 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -880,6 +880,7 @@ static struct sbp2_lu *sbp2_alloc_device(struct unit_directory *ud)
}
shost->hostdata[0] = (unsigned long)lu;
+ shost->max_cmd_len = SBP2_MAX_CDB_SIZE;
if (!scsi_add_host(shost, &ud->device)) {
lu->shost = shost;
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index c5036f1cc5b..64a3a66a8a3 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -25,6 +25,12 @@
#define SBP2_DEVICE_NAME "sbp2"
/*
+ * There is no transport protocol limit to the CDB length, but we implement
+ * a fixed length only. 16 bytes is enough for disks larger than 2 TB.
+ */
+#define SBP2_MAX_CDB_SIZE 16
+
+/*
* SBP-2 specific definitions
*/
@@ -51,7 +57,7 @@ struct sbp2_command_orb {
u32 data_descriptor_hi;
u32 data_descriptor_lo;
u32 misc;
- u8 cdb[12];
+ u8 cdb[SBP2_MAX_CDB_SIZE];
} __attribute__((packed));
#define SBP2_LOGIN_REQUEST 0x0