diff options
| author | Anastasia Kovaleva <a.kovaleva@yadro.com> | 2022-11-14 13:24:58 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-11-24 02:16:19 +0000 |
| commit | 7870d24817890bccee98db0718acececd6399d04 (patch) | |
| tree | bf71aa545dd5c96450f3b7c0a6f63ada1ca82c45 | |
| parent | cdd9344e00b4fe3a4683a0ee58826c7a5ce778e0 (diff) | |
| download | linux-7870d24817890bccee98db0718acececd6399d04.tar.bz2 | |
scsi: target: core: Send max transfer length in blocks
A MAXIMUM TRANSFER LENGTH value indicates the maximum transfer length in
logical blocks that the device server accepts for a single command. Fix
function sending the length in sectors instead of blocks.
This patch also removes the special casing for fileio in block_size_store
since this logic in now unified in spc_emulate_evpd_b0() for all backends.
Reviewed-by: Konstantin Shelekhin <k.shelekhin@yadro.com>
Reviewed-by: Dmitriy Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Link: https://lore.kernel.org/r/20221114102500.88892-2-a.kovaleva@yadro.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/target/target_core_configfs.c | 2 | ||||
| -rw-r--r-- | drivers/target/target_core_file.c | 1 | ||||
| -rw-r--r-- | drivers/target/target_core_spc.c | 6 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 1 |
4 files changed, 5 insertions, 5 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index b8a5c8d6cfde..611b0424e305 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1102,8 +1102,6 @@ static ssize_t block_size_store(struct config_item *item, } da->block_size = val; - if (da->max_bytes_per_io) - da->hw_max_sectors = da->max_bytes_per_io / val; pr_debug("dev[%p]: SE Device block_size changed to %u\n", da->da_dev, val); diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 28aa643be5d5..f9aed9fa8ced 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -193,7 +193,6 @@ static int fd_configure_device(struct se_device *dev) } dev->dev_attrib.hw_block_size = fd_dev->fd_block_size; - dev->dev_attrib.max_bytes_per_io = FD_MAX_BYTES; dev->dev_attrib.hw_max_sectors = FD_MAX_BYTES / fd_dev->fd_block_size; dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH; diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 621a460ba234..fcc7b10a7ae3 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -515,6 +515,7 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) struct se_device *dev = cmd->se_dev; u32 mtl = 0; int have_tp = 0, opt, min; + u32 io_max_blocks; /* * Following spc3r22 section 6.5.3 Block Limits VPD page, when @@ -553,7 +554,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE) / dev->dev_attrib.block_size; } - put_unaligned_be32(min_not_zero(mtl, dev->dev_attrib.hw_max_sectors), &buf[8]); + io_max_blocks = mult_frac(dev->dev_attrib.hw_max_sectors, + dev->dev_attrib.hw_block_size, + dev->dev_attrib.block_size); + put_unaligned_be32(min_not_zero(mtl, io_max_blocks), &buf[8]); /* * Set OPTIMAL TRANSFER LENGTH diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 0c1e43980985..12c9ba16217e 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -712,7 +712,6 @@ struct se_dev_attrib { u32 unmap_granularity; u32 unmap_granularity_alignment; u32 max_write_same_len; - u32 max_bytes_per_io; struct se_device *da_dev; struct config_group da_group; }; |