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| author | Christoph Hellwig <hch@infradead.org> | 2012-06-17 18:40:52 -0400 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-07-16 17:29:12 -0700 |
| commit | 0c2ad7d1132d8b089b1d37875917858e03610019 (patch) | |
| tree | e86cc118497605026a15c0e97630c57aeb625793 /drivers/target/target_core_rd.c | |
| parent | e1306bdab3af8bef620990a99e613f99eb30065c (diff) | |
| download | linux-0c2ad7d1132d8b089b1d37875917858e03610019.tar.gz linux-0c2ad7d1132d8b089b1d37875917858e03610019.tar.bz2 linux-0c2ad7d1132d8b089b1d37875917858e03610019.zip | |
target: add struct spc_ops + initial ->execute_rw pointer usage
Remove the execute_cmd method in struct se_subsystem_api, and always use the
one directly in struct se_cmd. To make life simpler for SBC virtual backends
a struct spc_ops that is passed to sbc_parse_cmd is added. For now it
only contains an execute_rw member, but more will follow with the subsequent
commits.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_rd.c')
| -rw-r--r-- | drivers/target/target_core_rd.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index d7e838287d89..d00bbe33ff8b 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -284,9 +284,11 @@ static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page) return NULL; } -static int rd_execute_cmd(struct se_cmd *cmd, struct scatterlist *sgl, - u32 sgl_nents, enum dma_data_direction data_direction) +static int rd_execute_rw(struct se_cmd *cmd) { + struct scatterlist *sgl = cmd->t_data_sg; + u32 sgl_nents = cmd->t_data_nents; + enum dma_data_direction data_direction = cmd->data_direction; struct se_device *se_dev = cmd->se_dev; struct rd_dev *dev = se_dev->dev_ptr; struct rd_dev_sg_table *table; @@ -460,6 +462,15 @@ static sector_t rd_get_blocks(struct se_device *dev) return blocks_long; } +static struct spc_ops rd_spc_ops = { + .execute_rw = rd_execute_rw, +}; + +static int rd_parse_cdb(struct se_cmd *cmd) +{ + return sbc_parse_cdb(cmd, &rd_spc_ops); +} + static struct se_subsystem_api rd_mcp_template = { .name = "rd_mcp", .transport_type = TRANSPORT_PLUGIN_VHBA_VDEV, @@ -468,8 +479,7 @@ static struct se_subsystem_api rd_mcp_template = { .allocate_virtdevice = rd_allocate_virtdevice, .create_virtdevice = rd_create_virtdevice, .free_device = rd_free_device, - .parse_cdb = sbc_parse_cdb, - .execute_cmd = rd_execute_cmd, + .parse_cdb = rd_parse_cdb, .check_configfs_dev_params = rd_check_configfs_dev_params, .set_configfs_dev_params = rd_set_configfs_dev_params, .show_configfs_dev_params = rd_show_configfs_dev_params, |