module/raid: remove redundant functions
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I8d872e4cf8911f20e9d2758ec9c6a5e397d231c4 Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/471083 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
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@ -368,6 +368,8 @@ _raid_bdev_submit_reset_request_next(void *_bdev_io)
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raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
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raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
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raid_io->base_bdev_io_expected = raid_bdev->num_base_bdevs;
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while (raid_io->base_bdev_io_submitted < raid_bdev->num_base_bdevs) {
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i = raid_io->base_bdev_io_submitted;
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ret = spdk_bdev_reset(raid_bdev->base_bdev_info[i].desc,
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@ -383,47 +385,6 @@ _raid_bdev_submit_reset_request_next(void *_bdev_io)
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}
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}
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/*
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* brief:
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* _raid_bdev_submit_reset_request function is the submit_request function for
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* reset requests
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* params:
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* ch - pointer to raid bdev io channel
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* bdev_io - pointer to parent bdev_io on raid bdev device
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* returns:
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* none
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*/
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static void
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_raid_bdev_submit_reset_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
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{
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struct raid_bdev_io *raid_io;
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struct raid_bdev *raid_bdev;
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raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
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raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
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raid_io->base_bdev_io_expected = raid_bdev->num_base_bdevs;
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_raid_bdev_submit_reset_request_next(bdev_io);
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}
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/*
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* brief:
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* _raid_bdev_submit_null_payload_request function is the submit_request function
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* for io requests with range but without payload, like UNMAP and FLUSH.
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* params:
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* ch - pointer to raid bdev io channel
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* bdev_io - pointer to parent bdev_io on raid bdev device
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* returns:
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* none
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*/
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static void
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_raid_bdev_submit_null_payload_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
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{
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SPDK_DEBUGLOG(SPDK_LOG_BDEV_RAID, "raid_bdev: type %d, range (0x%lx, 0x%lx)\n",
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bdev_io->type, bdev_io->u.bdev.offset_blocks, bdev_io->u.bdev.num_blocks);
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raid0_submit_null_payload_request(bdev_io);
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}
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/*
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* brief:
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* Callback function to spdk_bdev_io_get_buf.
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@ -443,7 +404,7 @@ raid_bdev_get_buf_cb(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io,
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return;
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}
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raid0_start_rw_request(ch, bdev_io);
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raid0_submit_rw_request(bdev_io);
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}
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/*
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@ -473,16 +434,16 @@ raid_bdev_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_i
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bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen);
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break;
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case SPDK_BDEV_IO_TYPE_WRITE:
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raid0_start_rw_request(ch, bdev_io);
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raid0_submit_rw_request(bdev_io);
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break;
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case SPDK_BDEV_IO_TYPE_RESET:
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_raid_bdev_submit_reset_request(ch, bdev_io);
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_raid_bdev_submit_reset_request_next(bdev_io);
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break;
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case SPDK_BDEV_IO_TYPE_FLUSH:
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case SPDK_BDEV_IO_TYPE_UNMAP:
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_raid_bdev_submit_null_payload_request(ch, bdev_io);
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raid0_submit_null_payload_request(bdev_io);
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break;
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default:
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@ -266,7 +266,7 @@ __RAID_MODULE_REGISTER(__LINE__)(void) \
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}
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void
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raid0_start_rw_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io);
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raid0_submit_rw_request(struct spdk_bdev_io *bdev_io);
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void
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raid0_submit_null_payload_request(void *_bdev_io);
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void
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@ -74,12 +74,11 @@ raid0_waitq_io_process(void *ctx);
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* member disk for raid0 bdevs.
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* params:
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* bdev_io - parent bdev io
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* start_strip - start strip number of this io
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* returns:
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* none
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*/
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static void
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raid0_submit_rw_request(struct spdk_bdev_io *bdev_io, uint64_t start_strip)
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void
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raid0_submit_rw_request(struct spdk_bdev_io *bdev_io)
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{
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struct raid_bdev_io *raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
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struct raid_bdev_io_channel *raid_ch = raid_io->raid_ch;
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@ -90,6 +89,18 @@ raid0_submit_rw_request(struct spdk_bdev_io *bdev_io, uint64_t start_strip)
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uint64_t pd_blocks;
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uint8_t pd_idx;
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int ret = 0;
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uint64_t start_strip;
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uint64_t end_strip;
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start_strip = bdev_io->u.bdev.offset_blocks >> raid_bdev->strip_size_shift;
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end_strip = (bdev_io->u.bdev.offset_blocks + bdev_io->u.bdev.num_blocks - 1) >>
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raid_bdev->strip_size_shift;
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if (start_strip != end_strip && raid_bdev->num_base_bdevs > 1) {
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assert(false);
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SPDK_ERRLOG("I/O spans strip boundary!\n");
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spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
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return;
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}
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pd_strip = start_strip / raid_bdev->num_base_bdevs;
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pd_idx = start_strip % raid_bdev->num_base_bdevs;
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@ -144,46 +155,8 @@ static void
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raid0_waitq_io_process(void *ctx)
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{
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struct spdk_bdev_io *bdev_io = ctx;
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struct raid_bdev *raid_bdev;
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uint64_t start_strip;
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/*
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* Try to submit childs of parent bdev io. If failed due to resource
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* crunch then break the loop and don't try to process other queued IOs.
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*/
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raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
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start_strip = bdev_io->u.bdev.offset_blocks >> raid_bdev->strip_size_shift;
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raid0_submit_rw_request(bdev_io, start_strip);
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}
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/*
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* brief:
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* raid0_start_rw_request function is the submit_request function for
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* read/write requests for raid0 bdevs.
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* params:
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* ch - pointer to raid bdev io channel
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* bdev_io - pointer to parent bdev_io on raid bdev device
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* returns:
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* none
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*/
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void
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raid0_start_rw_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
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{
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struct raid_bdev *raid_bdev;
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uint64_t start_strip = 0;
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uint64_t end_strip = 0;
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raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
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start_strip = bdev_io->u.bdev.offset_blocks >> raid_bdev->strip_size_shift;
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end_strip = (bdev_io->u.bdev.offset_blocks + bdev_io->u.bdev.num_blocks - 1) >>
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raid_bdev->strip_size_shift;
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if (start_strip != end_strip && raid_bdev->num_base_bdevs > 1) {
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assert(false);
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SPDK_ERRLOG("I/O spans strip boundary!\n");
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spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
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return;
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}
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raid0_submit_rw_request(bdev_io, start_strip);
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raid0_submit_rw_request(bdev_io);
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}
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/* raid0 IO range */
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