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Commit 1762742f authored by Nicholas Bellinger's avatar Nicholas Bellinger
Browse files

target/rd: Add checks for backend DIF emulation 



Make sure that RAMDISK only attempts to use backend DIF emulation
when it's actually enabled at device level.

Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 6f16ec43

drivers/target/target_core_rd.c

+4 −2
Original line number Diff line number Diff line
@@ -419,7 +419,8 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, 
			data_direction == DMA_FROM_DEVICE ? "Read" : "Write",

			cmd->t_task_lba, rd_size, rd_page, rd_offset);



	if (cmd->prot_type && data_direction == DMA_TO_DEVICE) {

	if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&

	    data_direction == DMA_TO_DEVICE) {

		struct rd_dev_sg_table *prot_table;

		struct scatterlist *prot_sg;

		u32 sectors = cmd->data_length / se_dev->dev_attrib.block_size;
@@ -502,7 +503,8 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, 
	}

	sg_miter_stop(&m);



	if (cmd->prot_type && data_direction == DMA_FROM_DEVICE) {

	if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&

	    data_direction == DMA_FROM_DEVICE) {

		struct rd_dev_sg_table *prot_table;

		struct scatterlist *prot_sg;

		u32 sectors = cmd->data_length / se_dev->dev_attrib.block_size;