- 26 Nov, 2015 40 commits
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John Garry authored
The SAS address for the HBA comes from the device tree. Signed-off-by:
John Garry <john.garry@huawei.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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John Garry authored
Each completion queue has a structure. This is mainly for passing to irq handler so we know which queue the irq occured on. Signed-off-by:
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John Garry authored
Add functionality to init slot indexing. Slot indexing is for the host to track which slots (or tags) are free and which are used. Signed-off-by:
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John Garry authored
This patch also includes relevant memory/pool freeing and sas/scsi host removal. Signed-off-by:
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John Garry authored
Allocate DMA and non-DMA memories for the controller. Also create DMA pools. These include: - Delivery queues - Completion queues - Command status buffer - Command table - ITCT (For device context) - Host slot info - IO status - Breakpoint - host slot indexing - SG data - FIS - interrupts names Signed-off-by:
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John Garry authored
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John Garry authored
Scan the device tree for all properties. Also do this: - do ioremap for SAS registers - allocate memory for interrupt names Signed-off-by:
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John Garry authored
Add functionality to register device as a scsi host. The SAS domain transport ops are empty at this point. Signed-off-by:
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John Garry authored
This patch adds the initial bare main driver for the HiSilicon SAS HBA. This only introduces the changes to build and load the main driver module. The complete driver consists of the core main module and also a module platform driver for driving the hw. The HBA is a platform device. Signed-off-by:
Zhangfei Gao <zhangfei.gao@linaro.org> Reviewed-by:
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John Garry authored
Add devicetree bindings for HiSilicon SAS driver. Signed-off-by:
Rob Herring <robh@kernel.org> Reviewed-by:
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John Garry authored
The xfer_rdy, command, and task frame's iu structures are not available in <scsi/sas.h>, but only aic94xx driver folder. Add them to include/scsi/sas.h Signed-off-by:
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Ondrej Zary authored
Move 870-specific init code to a separate function atp870_init() Signed-off-by:
Ondrej Zary <linux@rainbow-software.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Ondrej Zary authored
Move 885-specific init code to a separate function atp885_init() Signed-off-by:
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Ondrej Zary authored
Move 880-specific init code to a separate function atp880_init() Signed-off-by:
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Ondrej Zary authored
Call _init_tables before chip-specific initialization. This avoids code duplication and fixes a bug(?) in 880 init where the values read from flash into atpdev->sp are then overwritten by calling init_tables. Signed-off-by:
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Ondrej Zary authored
scam_on is used only during probe, no need to keep it later. Signed-off-by:
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Ondrej Zary authored
Allocate IRQ later during probe to avoid code duplication and also remove the need for weird locking in _probe. (It was probably there to prevent race with the IRQ handler?) Signed-off-by:
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Ondrej Zary authored
Use pci_request_regions and do it before accessing the I/O ports. Also add missing pci_disable_device() call to atp870u_remove(). Signed-off-by:
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Ondrej Zary authored
Introduce chip type inline functions to simplify code, allowing to delete dev_id from struct atp_unit. Signed-off-by:
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Ondrej Zary authored
Move shpnt common code to the top, remove base_io, use pci_resource_len. Signed-off-by:
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Ondrej Zary authored
chip_ver is used for wide chip detection only. Remove it and use a local variable instead (for 870; 880 and 885 are always wide). Signed-off-by:
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Ondrej Zary authored
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Ondrej Zary authored
Move scsi_host_alloc() to the top of _probe() to remove code duplication, *p and unneeded atpdev (de)allocation and copying. While at it, fix the error paths to return real error codes and also add missing pci_disble_device() call. Signed-off-by:
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Ondrej Zary authored
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Ondrej Zary authored
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Ondrej Zary authored
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Ondrej Zary authored
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Ondrej Zary authored
tscam_885() is empty (except a delay) so remove it. Signed-off-by:
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Ondrej Zary authored
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Ondrej Zary authored
The code for setting host adapter ID is the same for all chips. Move it to a common function. Signed-off-by:
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Ondrej Zary authored
The ioport region is 0x20 bytes long so accessing 0x3a register using writeb_io is incorrect. Use writeb_base instead. There's no change in behavior as 870 chips have ioport = baseport. Signed-off-by:
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Ondrej Zary authored
tscam() is using port 0x80 access for delays but that's x86-only. Use udelay(2) instead. Signed-off-by:
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Ondrej Zary authored
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Ondrej Zary authored
Now that all the is* functions except is885() are gone, rename is885() to atp_is() to avoid confusion. Don't know what "is" means, though... Signed-off-by:
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Ondrej Zary authored
Now that is885() supports everything from is870() and the rest of the code is almost identical, remove is870() and use is885() instead. Signed-off-by:
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Ondrej Zary authored
Move few remaining 870-specific code lines out of is870() Signed-off-by:
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Ondrej Zary authored
Add remaining 870 support to is885(): - different synw, no synuw - synu[4] = 0x0c - atp_writeb_io(dev, c, 0x04, 0x00); instead of atp_writeb_io(dev, c, 0x14, 0x00); (isn't that a bug?) - atp_writeb_io(dev, c, 0x14, 0xff); instead of atp_writeb_io(dev, c, 0x14, 0x06); - different mbuf[3] and mbuf[4] checks Signed-off-by:
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Ondrej Zary authored
Don't check chip_ver in is870() but add wide_chip parameter for that. Then add the non-wide support to is885(). Signed-off-by:
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Ondrej Zary authored
Now that is880() and is885() are almost identical (except for some cpu_relax() calls and debug printks), remove is880() and use is885() instead. Signed-off-by:
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Ondrej Zary authored
Move few chip-specifis lines out of is880() and is885() so they become almost identical. Signed-off-by:
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