target: Implement mode page 0x1c, "Informational Exceptions"
The Windows SCSI compliance test asks for this mode page, and it's
easy to implement: we can just return all 0s to show we don't support
any of these features.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 8ccfe00..6c10fce 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -760,6 +760,19 @@
return 20;
}
+static int spc_modesense_informational_exceptions(struct se_device *dev, u8 pc, unsigned char *p)
+{
+ p[0] = 0x1c;
+ p[1] = 0x0a;
+
+ /* No changeable values for now */
+ if (pc == 1)
+ goto out;
+
+out:
+ return 12;
+}
+
static struct {
uint8_t page;
uint8_t subpage;
@@ -768,6 +781,7 @@
{ .page = 0x01, .subpage = 0x00, .emulate = spc_modesense_rwrecovery },
{ .page = 0x08, .subpage = 0x00, .emulate = spc_modesense_caching },
{ .page = 0x0a, .subpage = 0x00, .emulate = spc_modesense_control },
+ { .page = 0x1c, .subpage = 0x00, .emulate = spc_modesense_informational_exceptions },
};
static void spc_modesense_write_protect(unsigned char *buf, int type)