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path: root/drivers/scsi/qla4xxx/ql4_glbl.h
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2008-04-07[SCSI] qla4xxx: fix scsi command completion, lun reset and target reset codeDavid C Somayajulu
This patch contains the following: 1. when hba completion status is good, check for iscsi transport errors (underflow/overflow) prior to checking the scsi status 2. New firmware requires that one marker iocb be issued for each task management command. The patch issues marker iocb immediately following a LUN or Target reset. Signed-off-by: David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07[SCSI] qla4xxx: Add target reset functionalityMike Christie
This patch adds target reset functionalty. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Acked-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-05-26[SCSI] qla4xxx: update rev num and misc cleanupDavid C Somayajulu
Clean up and update version number Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06[SCSI] qla4xxx: possible cleanupsAdrian Bunk
- make needlessly global code static - #if 0 unused functions Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-27[SCSI] qla4xxx: bug fixesDavid C Somayajulu
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>
2006-11-22[SCSI] qla4xxx: add support for qla4032David C Somayajulu
This patch provides the following: 1. adds support for the next version of Qlogic's iSCSI HBA, qla4032 (PCI Device ID 4032). 2. removes dead code related to topcat chip and renames qla4010_soft_reset to qla4xxx_soft_reset (minor changes). Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22[PATCH] qla4xxx: bug fix: driver hardware semaphore needs to be grabbed ↵David C Somayajulu
before soft reset On qla4xxx, the driver needs to grab the drvr semaphore provided by the hardware, prior to issuing a reset. This patches takes care of a couple of places where it was not being done. In addition there is minor clean up. Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-25[SCSI] Maintain module-parameter name consistency with qla2xxx/qla4xxx.Andrew Vasquez
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-05Merge git://git.infradead.org/~dhowells/irq-2.6Linus Torvalds
* git://git.infradead.org/~dhowells/irq-2.6: IRQ: Maintain regs pointer globally rather than passing to IRQ handlers IRQ: Typedef the IRQ handler function type IRQ: Typedef the IRQ flow handler function type
2006-10-05[PATCH] fix qla{2,4} build errorFrederik Deweerdt
commit 0181944fe647cae18d545ac1167df3d15d393701 adds a 'extended_error_logging' global variable to qla2xxx which is defined by qla4xxx too. Trying to build both drivers results in the following error: LD drivers/scsi/built-in.o drivers/scsi/qla4xxx/built-in.o: In function `qla4xxx_slave_configure': drivers/scsi/qla4xxx/ql4_os.c:1433: multiple definition of `extended_error_logging' drivers/scsi/qla2xxx/built-in.o:drivers/scsi/qla2xxx/qla_os.c:2166: first defined here make[2]: *** [drivers/scsi/built-in.o] Error 1 make[1]: *** [drivers/scsi] Error 2 make: *** [drivers] Error 2 The following patch simply adds a qla2_ (qla4_ respectively) prefix to the variable name. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-04[SCSI] Initial Commit of qla4xxxDavid Somayajulu
open-iSCSI driver for Qlogic Corporation's iSCSI HBAs Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Doug Maxey <dwm@bubba.enoyolf.org> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>