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authorDavid C Somayajulu <david.somayajulu@qlogic.com>2007-01-22 12:26:11 -0800
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-01-27 09:15:46 -0600
commit477ffb9d8732f30e7ab2d20f6ed0c22bad37a4a5 (patch)
treed8633736db9eb4609d935bc5ff0c1a8fba5d07f4 /drivers/scsi/qla4xxx/ql4_glbl.h
parent938e2ac0b7ac72d264783b0b548eb6078c295294 (diff)
[SCSI] qla4xxx: bug fixes
The included patch fixes the following issues: 1. qla3xxx/qla4xxx co-existence issue which can result in a lockup when qla3xxx driver is unloaded, or when ifdown; ifup is performed on one of the interfaces correponding to qla3xxx. This is because qla4xxx HBA supports one ethernet and iscsi interfaces per port. Both iscsi and ethernet interfaces share the same state machine. The problem has to do with synchronizing access to the state machine in the event of a reset 2. mutex_lock() is sometimes not followed by mutex_unlock() prior to invoking a msleep() in qla4xxx_mailbox_command() Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_glbl.h')
-rw-r--r--drivers/scsi/qla4xxx/ql4_glbl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 2122967bbf0..e021eb5db2b 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -76,4 +76,5 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host * ha,
extern int ql4xextended_error_logging;
extern int ql4xdiscoverywait;
extern int ql4xdontresethba;
+extern int ql4_mod_unload;
#endif /* _QLA4x_GBL_H */