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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-06-17 23:54:52 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-07-10 00:07:41 +0200 |
| commit | 77bba7aea7dc833caa34761fa7ce081a40a14493 (patch) | |
| tree | 7ccb9af9ad981ede46ffc8043c69749b50fa6c54 | |
| parent | 93f2e0259a76ceb9c598d5af382aecbb2df01c51 (diff) | |
| download | blackbird-op-linux-77bba7aea7dc833caa34761fa7ce081a40a14493.tar.gz blackbird-op-linux-77bba7aea7dc833caa34761fa7ce081a40a14493.zip | |
ieee1394: sbp2: change some module parameters from int to bool
This is upwards compatible, except that integer values other than 0 or 1
are no longer accepted. But values like "Y", "N", "no", "nnoooh!" work
now.
Also, improve a comment on the serialize_io parameter and make the
ORB_SET_EXCLUSIVE macro ultra-safe.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| -rw-r--r-- | drivers/ieee1394/sbp2.c | 15 | ||||
| -rw-r--r-- | drivers/ieee1394/sbp2.h | 2 |
2 files changed, 8 insertions, 9 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 3f873cc7e247..e0c385a3b450 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -118,14 +118,13 @@ MODULE_PARM_DESC(max_speed, "Force max speed " "(3 = 800Mb/s, 2 = 400Mb/s, 1 = 200Mb/s, 0 = 100Mb/s)"); /* - * Set serialize_io to 1 if you'd like only one scsi command sent - * down to us at a time (debugging). This might be necessary for very - * badly behaved sbp2 devices. + * Set serialize_io to 0 or N to use dynamically appended lists of command ORBs. + * This is and always has been buggy in multiple subtle ways. See above TODOs. */ static int sbp2_serialize_io = 1; -module_param_named(serialize_io, sbp2_serialize_io, int, 0444); -MODULE_PARM_DESC(serialize_io, "Serialize I/O coming from scsi drivers " - "(default = 1, faster = 0)"); +module_param_named(serialize_io, sbp2_serialize_io, bool, 0444); +MODULE_PARM_DESC(serialize_io, "Serialize requests coming from SCSI drivers " + "(default = Y, faster but buggy = N)"); /* * Bump up max_sectors if you'd like to support very large sized @@ -154,9 +153,9 @@ MODULE_PARM_DESC(max_sectors, "Change max sectors per I/O supported " * are possible on OXFW911 and newer Oxsemi bridges. */ static int sbp2_exclusive_login = 1; -module_param_named(exclusive_login, sbp2_exclusive_login, int, 0644); +module_param_named(exclusive_login, sbp2_exclusive_login, bool, 0644); MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device " - "(default = 1)"); + "(default = Y, use N for concurrent initiators)"); /* * If any of the following workarounds is required for your device to work, diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h index 44402b9d82a8..333a4bb76743 100644 --- a/drivers/ieee1394/sbp2.h +++ b/drivers/ieee1394/sbp2.h @@ -67,7 +67,7 @@ struct sbp2_command_orb { #define ORB_SET_LUN(v) ((v) & 0xffff) #define ORB_SET_FUNCTION(v) (((v) & 0xf) << 16) #define ORB_SET_RECONNECT(v) (((v) & 0xf) << 20) -#define ORB_SET_EXCLUSIVE(v) (((v) & 0x1) << 28) +#define ORB_SET_EXCLUSIVE(v) ((v) ? 1 << 28 : 0) #define ORB_SET_LOGIN_RESP_LENGTH(v) ((v) & 0xffff) #define ORB_SET_PASSWD_LENGTH(v) (((v) & 0xffff) << 16) |
