target: Update SPC/SBC emulation for sess_prot_type

[firefly-linux-kernel-4.4.55.git] / drivers / target / target_core_spc.c

diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index f310aac38bd8b03a751c2beac0748b257a3f9b2a..9ec64596588ca2728a4b135301d9e3517c6d0ac2 100644 (file)
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -103,10 +103,12 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
                buf[5] |= 0x8;
        /*
         * Set Protection (PROTECT) bit when DIF has been enabled on the
-        * device, and the transport supports VERIFY + PASS.
+        * device, and the fabric supports VERIFY + PASS.  Also report
+        * PROTECT=1 if sess_prot_type has been configured to allow T10-PI
+        * to unprotected devices.
         */
        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
-               if (dev->dev_attrib.pi_prot_type)
+               if (dev->dev_attrib.pi_prot_type || cmd->se_sess->sess_prot_type)
                        buf[5] |= 0x1;
        }
 
@@ -480,9 +482,11 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
         * only for TYPE3 protection.
         */
        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
-               if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT)
+               if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT ||
+                   cmd->se_sess->sess_prot_type == TARGET_DIF_TYPE1_PROT)
                        buf[4] = 0x5;
-               else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT)
+               else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT ||
+                       cmd->se_sess->sess_prot_type == TARGET_DIF_TYPE3_PROT)
                        buf[4] = 0x4;
        }
 
@@ -874,7 +878,7 @@ static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p)
         * TAG field.
         */
        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
-               if (dev->dev_attrib.pi_prot_type)
+               if (dev->dev_attrib.pi_prot_type || sess->sess_prot_type)
                        p[5] |= 0x80;
        }