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path: root/drivers/target/target_core_transport.c
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Diffstat (limited to 'drivers/target/target_core_transport.c')
-rw-r--r--drivers/target/target_core_transport.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 9c820ba5ae82..a7a4ef2d589e 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1767,6 +1767,15 @@ void target_execute_cmd(struct se_cmd *cmd)
cmd->t_state = TRANSPORT_PROCESSING;
cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT;
spin_unlock_irq(&cmd->t_state_lock);
+ /*
+ * Perform WRITE_INSERT of PI using software emulation when backend
+ * device has PI enabled, if the transport has not already generated
+ * PI using hardware WRITE_INSERT offload.
+ */
+ if (cmd->prot_op == TARGET_PROT_DOUT_INSERT) {
+ if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DOUT_INSERT))
+ sbc_dif_generate(cmd);
+ }
if (target_handle_task_attr(cmd)) {
spin_lock_irq(&cmd->t_state_lock);