Commit 1dadcd87 authored by Artur Paszkiewicz's avatar Artur Paszkiewicz Committed by Ben Walker
Browse files

ftl: ftl_rq helpers for compaction 



Signed-off-by: default avatarArtur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: default avatarKozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I614b29e7bc7f6db20b10395bc780ff633c497b59
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13336


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent 31cf6336

lib/ftl/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -22,7 +22,7 @@ CFLAGS += -I. 
FTL_SUBDIRS := mngt utils



C_SRCS = ftl_core.c ftl_init.c ftl_layout.c ftl_debug.c ftl_io.c ftl_sb.c ftl_l2p.c ftl_l2p_flat.c

C_SRCS += ftl_nv_cache.c ftl_band.c ftl_band_ops.c ftl_writer.c

C_SRCS += ftl_nv_cache.c ftl_band.c ftl_band_ops.c ftl_writer.c ftl_rq.c

C_SRCS += mngt/ftl_mngt.c mngt/ftl_mngt_bdev.c mngt/ftl_mngt_shutdown.c mngt/ftl_mngt_startup.c

C_SRCS += mngt/ftl_mngt_md.c mngt/ftl_mngt_misc.c mngt/ftl_mngt_ioch.c mngt/ftl_mngt_l2p.c

C_SRCS += mngt/ftl_mngt_band.c

lib/ftl/ftl_io.h

+3 −0
Original line number Diff line number Diff line
@@ -299,6 +299,9 @@ int ftl_io_init(struct spdk_io_channel *ioch, struct ftl_io *io, uint64_t lba, 
		size_t num_blocks, struct iovec *iov, size_t iov_cnt, spdk_ftl_fn cb_fn,

		void *cb_arg, int type);

void ftl_io_complete(struct ftl_io *io);

void ftl_rq_del(struct ftl_rq *rq);

struct ftl_rq *ftl_rq_new(struct spdk_ftl_dev *dev, uint32_t io_md_size);

void ftl_rq_unpin(struct ftl_rq *rq);



static inline void

ftl_basic_rq_init(struct spdk_ftl_dev *dev, struct ftl_basic_rq *brq,

lib/ftl/ftl_rq.c

0 → 100644
+111 −0
Original line number Diff line number Diff line 
/*   SPDX-License-Identifier: BSD-3-Clause

 *   Copyright (c) Intel Corporation.

 *   All rights reserved.

 */



#include "spdk/ftl.h"

#include "spdk/env.h"



#include "ftl_io.h"

#include "ftl_core.h"



struct ftl_rq *

ftl_rq_new(struct spdk_ftl_dev *dev, uint32_t io_md_size)

{

	struct ftl_rq *rq;

	struct ftl_rq_entry *entry;

	struct iovec *io_vec;

	void *io_payload, *io_md = NULL;

	uint64_t i;

	size_t size;

	uint32_t num_blocks = dev->xfer_size;



	size = sizeof(*rq) + (sizeof(rq->entries[0]) * num_blocks);

	rq = calloc(1, size);

	if (!rq) {

		return NULL;

	}

	rq->dev = dev;

	rq->num_blocks = num_blocks;



	/* Allocate payload for IO and IO vector */

	io_payload = rq->io_payload = spdk_zmalloc(FTL_BLOCK_SIZE * num_blocks,

				      FTL_BLOCK_SIZE, NULL, SPDK_ENV_LCORE_ID_ANY,

				      SPDK_MALLOC_DMA);

	if (!io_payload) {

		goto error;

	}

	rq->io_vec = calloc(num_blocks, sizeof(rq->io_vec[0]));

	if (!rq->io_vec) {

		goto error;

	}

	rq->io_vec_size = num_blocks;



	/* Allocate extended metadata for IO */

	if (io_md_size) {

		rq->io_md_size = io_md_size;

		io_md = rq->io_md = spdk_zmalloc(io_md_size * num_blocks,

						 FTL_BLOCK_SIZE, NULL,

						 SPDK_ENV_LCORE_ID_ANY,

						 SPDK_MALLOC_DMA);

		if (!io_md) {

			goto error;

		}

	}



	entry = rq->entries;

	io_vec = rq->io_vec;

	for (i = 0; i < num_blocks; ++i) {

		uint64_t *index = (uint64_t *)&entry->index;

		*index = i;



		entry->addr = FTL_ADDR_INVALID;

		entry->lba = FTL_LBA_INVALID;

		entry->io_payload = io_payload;



		if (io_md_size) {

			entry->io_md = io_md;

		}



		io_vec->iov_base = io_payload;

		io_vec->iov_len = FTL_BLOCK_SIZE;



		entry++;

		io_vec++;

		io_payload += FTL_BLOCK_SIZE;

		io_md += io_md_size;

	}



	return rq;

error:

	ftl_rq_del(rq);

	return NULL;

}



void

ftl_rq_del(struct ftl_rq *rq)

{

	if (!rq) {

		return;

	}



	spdk_free(rq->io_payload);

	spdk_free(rq->io_md);

	free(rq->io_vec);



	free(rq);

}



void

ftl_rq_unpin(struct ftl_rq *rq)

{

	struct ftl_l2p_pin_ctx *pin_ctx;

	uint64_t i;



	for (i = 0; i < rq->iter.count; i++) {

		pin_ctx = &rq->entries[i].l2p_pin_ctx;

		if (pin_ctx->lba != FTL_LBA_INVALID) {

			ftl_l2p_unpin(rq->dev, pin_ctx->lba, pin_ctx->count);

		}

	}

}