kernel.git/drivers/scsi/BusLogic.c, branch linux-2.6.19.y

[BusLogic] Add pci dev table for auto module loading.

2006-10-18T12:36:57Z

Signed-off-by: Ben Collins

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05T14:10:12Z

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 (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

[SCSI] Switch some more scsi drivers to pci_get_device and refcounted pci structures

2006-09-24T01:32:52Z

Signed-off-by: Alan Cox Signed-off-by: James Bottomley

[SCSI] BusLogic gcc 4.1 warning fixes

2006-08-19T22:18:28Z

- Reworked all the very long lines in that block (this drivers full of them though) - Returns an error in three places that it didn't before. - Properly clean up after a scsi_add_host() failure. Signed-off-by: Daniel Walker Signed-off-by: Andrew Morton Signed-off-by: James Bottomley

[PATCH] irq-flags: scsi: Use the new IRQF_ constants

2006-07-02T20:58:53Z

Signed-off-by: Thomas Gleixner Cc: Ingo Molnar Cc: "David S. Miller" Cc: Benjamin Herrenschmidt Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Remove obsolete #include

2006-06-30T17:25:36Z

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk

[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK

2006-03-28T17:16:07Z

Replace all occurences of 0xff.. in calls to function pci_set_dma_mask() and pci_set_consistant_dma_mask() with the corresponding DMA_xBIT_MASK from linux/dma-mapping.h. Signed-off-by: Matthias Gehre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] drivers/scsi/*: use time_after() and friends

2006-03-28T17:16:07Z

They deal with wrapping correctly and are nicer to read. Signed-off-by: Marcelo Feitoza Parisi Signed-off-by: Alexey Dobriyan Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[SCSI] Pass proper device from BusLogic to SCSI layer

2006-01-12T21:26:13Z

While trying to get SUSE's SLES9 working on system with more than 4GB we've noticed that SCSI layer happilly passes addresses over 4GB to the buslogic driver, which is quite a big problem as buslogic can generate only 32bit busmastering cycles. Fortunately in the current kernels this problem does not exist anymore as SCSI layer now assumes 4GB capable device by default, but it is still good idea to pass correct device structure to the SCSI layer. If nothing else, /sys/block/sda/device now points to /sys/devices/pci0000:00/0000:00:10.0/host0/... instead of /sys/devices/platform/host0/... like it did in the past. Change does nothing for ISA based BusLogic adapters, they'll still end under platform (and they are probably broken for long time as I do not see anything forcing ISA 16MB limit for them). Signed-off-by: Petr Vandrovec Signed-off-by: Andrew Morton Signed-off-by: James Bottomley

[SCSI] allow sleeping in ->eh_host_reset_handler()

2005-06-17T17:05:18Z

Signed-off-by: James Bottomley