target: Pass through I/O topology for block backstores

[uclinux-h8/linux.git] / drivers / target / target_core_sbc.c

diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 6c17295..61a30f0 100644 (file)
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -105,12 +105,22 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
        buf[9] = (dev->dev_attrib.block_size >> 16) & 0xff;
        buf[10] = (dev->dev_attrib.block_size >> 8) & 0xff;
        buf[11] = dev->dev_attrib.block_size & 0xff;
+
+       if (dev->transport->get_lbppbe)
+               buf[13] = dev->transport->get_lbppbe(dev) & 0x0f;
+
+       if (dev->transport->get_alignment_offset_lbas) {
+               u16 lalba = dev->transport->get_alignment_offset_lbas(dev);
+               buf[14] = (lalba >> 8) & 0x3f;
+               buf[15] = lalba & 0xff;
+       }
+
        /*
         * Set Thin Provisioning Enable bit following sbc3r22 in section
         * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled.
         */
        if (dev->dev_attrib.emulate_tpu || dev->dev_attrib.emulate_tpws)
-               buf[14] = 0x80;
+               buf[14] |= 0x80;
 
        rbuf = transport_kmap_data_sg(cmd);
        if (rbuf) {