kernel/drivers/block/sx8.c, branch linux-5.1.y

sx8: use a per-host tag_set

2018-11-09T15:14:14Z

The current sx8 code spends a lot of effort dealing with the fact that tags are per-host, but there might be multiple queues. Now that the driver has been converted to blk-mq it can take care of the blk-mq tag_set concept that has been designed just for that. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

sx8: cleanup queue and disk allocation / freeing

2018-11-09T15:14:12Z

Make the disk/queue alloc and free helpers per-port by moving the trivial loops into the callers. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

sx8: switch to the generic DMA API

2018-10-18T21:14:45Z

The PCI DMA API is deprecated, switch to the generic DMA API instead. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

sx8: remove dead IF_64BIT_DMA_IS_POSSIBLE code

2018-10-18T21:14:43Z

This code has effectively been commented out since the first commit, so remove it. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

sx8: convert to blk-mq

2018-10-16T15:50:55Z

Convert from the old request_fn style driver to blk-mq. Signed-off-by: Jens Axboe

block: sanitize blk_get_request calling conventions

2018-05-14T14:55:12Z

Switch everyone to blk_get_request_flags, and then rename blk_get_request_flags to blk_get_request. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe

block: introduce new block status code type

2017-06-09T15:27:32Z

Currently we use nornal Linux errno values in the block layer, and while we accept any error a few have overloaded magic meanings. This patch instead introduces a new blk_status_t value that holds block layer specific status codes and explicitly explains their meaning. Helpers to convert from and to the previous special meanings are provided for now, but I suspect we want to get rid of them in the long run - those drivers that have a errno input (e.g. networking) usually get errnos that don't know about the special block layer overloads, and similarly returning them to userspace will usually return somethings that strictly speaking isn't correct for file system operations, but that's left as an exercise for later. For now the set of errors is a very limited set that closely corresponds to the previous overloaded errno values, but there is some low hanging fruite to improve it. blk_status_t (ab)uses the sparse __bitwise annotations to allow for sparse typechecking, so that we can easily catch places passing the wrong values. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: fold cmd_type into the REQ_OP_ space

2017-01-31T21:00:44Z

Instead of keeping two levels of indirection for requests types, fold it all into the operations. The little caveat here is that previously cmd_type only applied to struct request, while the request and bio op fields were set to plain REQ_OP_READ/WRITE even for passthrough operations. Instead this patch adds new REQ_OP_* for SCSI passthrough and driver private requests, althought it has to add two for each so that we can communicate the data in/out nature of the request. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

Replace with globally

2016-12-24T19:46:01Z

This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*' sed -i -e "s!$PATT!#include !" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro Signed-off-by: Linus Torvalds

sx8: use real time for the command seconds

2015-12-23T15:42:59Z

Commit 8182503df1ba used monotonic time, but if the adapter is using the seconds for logging entries, then we'll get duplicate entries if the system is rebooted. Use real time instead. Reported-by: Arnd Bergmann Fixes: 8182503df1ba ("block: sx8.c: Replace timeval with ktime_t") Signed-off-by: Jens Axboe