user/sven/linux.git/include/linux/nvme.h, branch v3.4.78

NVMe: Update Identify Controller data structure

2011-11-04T20:24:23Z

The driver was still using an old definition of Identify Controller which only came to light once we started using the 'number of namespaces' field properly. Reported-by: Nisheeth Bhat Reported-by: Khosrow Panah Signed-off-by: Matthew Wilcox

NVMe: Implement doorbell stride capability

2011-11-04T19:53:05Z

The doorbell stride allows devices to spread out their doorbells instead of packing them tightly. This feature was added as part of ECN 003. This patch also enables support for more than 512 queues :-) Signed-off-by: Matthew Wilcox

NVMe: Rework ioctls

2011-11-04T19:53:03Z

Remove the special-purpose IDENTIFY, GET_RANGE_TYPE, DOWNLOAD_FIRMWARE and ACTIVATE_FIRMWARE commands. Replace them with a generic ADMIN_CMD ioctl that can submit any admin command. Add a new ID ioctl that returns the namespace ID of the queried device. It corresponds to the SCSI Idlun ioctl. Signed-off-by: Matthew Wilcox

NVMe: Time out initialisation after a few seconds

2011-11-04T19:53:02Z

THe device reports (in its capability register) how long it will take to initialise. If that time elapses before the ready bit becomes set, conclude the device is broken and refuse to initialise it. Log a nice error message so the user knows why we did nothing. Signed-off-by: Matthew Wilcox

NVMe: Correct the Controller Configuration settings

2011-11-04T19:53:01Z

The arbitration field was extended by one bit, shifting the shutdown notification bits by one. Also, the SQ/CQ entry size was made configurable for future extensions. Reported-by: Paul Luse Signed-off-by: Matthew Wilcox

NVMe: Change the definition of nvme_user_io

2011-11-04T19:53:01Z

The read and write commands don't define a 'result', so there's no need to copy it back to userspace. Remove the ability of the ioctl to submit commands to a different namespace; it's just asking for trouble, and the use case I have in mind will be addressed througha different ioctl in the future. That removes the need for both the block_shift and nsid arguments. Check that the opcode is one of 'read' or 'write'. Future opcodes may be added in the future, but we will need a different structure definition for them. The nblocks field is redefined to be 0-based. This allows the user to request the full 65536 blocks. Don't byteswap the reftag, apptag and appmask. Martin Petersen tells me these are calculated in big-endian and are transmitted to the device in big-endian. Signed-off-by: Matthew Wilcox

NVMe: Correct the definitions of two ioctls

2011-11-04T19:53:01Z

NVME_IOCTL_SUBMIT_IO has a struct nvme_user_io, not a struct nvme_rw_command as a parameter, and NVME_IOCTL_DOWNLOAD_FW is a Write, not a Read. Reported-by: Arnd Bergmann Signed-off-by: Matthew Wilcox

NVMe: Remove outdated comments

2011-11-04T19:53:00Z

The head can never overrun the tail since we won't allocate enough command IDs to let that happen. The status codes are in sync with the spec. Signed-off-by: Matthew Wilcox

NVMe: Update admin opcodes to match the 1.0RC spec

2011-11-04T19:52:59Z

Signed-off-by: Krzysztof Wierzbicki Signed-off-by: Matthew Wilcox Signed-off-by: Matthew Wilcox

NVMe: Update BAR structure to match the current spec

2011-11-04T19:52:57Z

Add two reserved registers in the middle of the BAR to match the 1.0 spec plus ECN 0002. Also rename IMC and ISC to INTMC and INTSC to conform with the spec. We still don't need to use them :-) Signed-off-by: Matthew Wilcox