Re: [PATCH v2 00/16] hw/block/nvme: dma handling and address mapping cleanup

[Klaus Jensen <its@irrelevant.dk>]

On Jul 30 00:06, Klaus Jensen wrote:
> From: Klaus Jensen <k.jensen@samsung.com>
> 
> This series consists of patches that refactors dma read/write and adds a
> number of address mapping helper functions.
> 
> v2:
>   * hw/block/nvme: add mapping helpers
>     - Add an assert in case of out of bounds array access. (Maxim)
> 
>   * hw/block/nvme: remove redundant has_sg member
>     - Split the fix for the missing qemu_iov_destroy into a fresh patch
>       ("hw/block/nvme: destroy request iov before reuse"). (Minwoo)
> 
>   * hw/block/nvme: pass request along for tracing [DROPPED]
>     - Dropped the patch and replaced it with a simple patch that just adds
>       tracing to the nvme_map_prp function ("hw/block/nvme: add tracing to
>       nvme_map_prp"). (Minwoo)
> 
>   * hw/block/nvme: add request mapping helper
>     - Changed the name from nvme_map to nvme_map_dptr. (Minwoo, Maxim)
> 
>   * hw/block/nvme: add check for mdts
>     - Don't touch the documentaiton for the cmb_size_mb and max_ioqpairs
>       parameters in this patch. (Minwoo)
> 
>   * hw/block/nvme: refactor NvmeRequest clearing [DROPPED]
>     - Keep NvmeRequest structure clearing as "before use". (Maxim)
> 
>   * hw/block/nvme: add a namespace reference in NvmeRequest
>   * hw/block/nvme: remove NvmeCmd parameter
>     - Squash these two patches together into "hw/block/nvme: add ns/cmd
>       references in NvmeRequest".
> 
>   * hw/block/nvme: consolidate qsg/iov clearing
>     - Move the qsg/iov destroys to a new nvme_req_exit function that is called
>       after the cqe has been posted.
> 
>   * hw/block/nvme: remove explicit qsg/iov parameters
>     - New patch. THe nvme_map_prp() function doesn't require the qsg and iov
>       parameters since it can just get them from the passed NvmeRequest.
> 
> Based-on: <20200706061303.246057-1-its@irrelevant.dk>
> 
> Klaus Jensen (16):
>   hw/block/nvme: memset preallocated requests structures
>   hw/block/nvme: add mapping helpers
>   hw/block/nvme: replace dma_acct with blk_acct equivalent
>   hw/block/nvme: remove redundant has_sg member
>   hw/block/nvme: destroy request iov before reuse
>   hw/block/nvme: refactor dma read/write
>   hw/block/nvme: add tracing to nvme_map_prp
>   hw/block/nvme: add request mapping helper
>   hw/block/nvme: verify validity of prp lists in the cmb
>   hw/block/nvme: refactor request bounds checking
>   hw/block/nvme: add check for mdts
>   hw/block/nvme: be consistent about zeros vs zeroes
>   hw/block/nvme: add ns/cmd references in NvmeRequest
>   hw/block/nvme: consolidate qsg/iov clearing
>   hw/block/nvme: use preallocated qsg/iov in nvme_dma_prp
>   hw/block/nvme: remove explicit qsg/iov parameters
> 
>  block/nvme.c          |   4 +-
>  hw/block/nvme.c       | 506 +++++++++++++++++++++++++++---------------
>  hw/block/nvme.h       |   4 +-
>  hw/block/trace-events |   4 +
>  include/block/nvme.h  |   4 +-
>  5 files changed, 340 insertions(+), 182 deletions(-)
> 
> -- 
> 2.27.0
> 
> 

Thanks for the reviews everyone.

Pushed to nvme-next.