From: Jörn Engel Date: Mon, 18 Mar 2013 22:30:31 +0000 (-0400) Subject: target: Change default sense key of NOT_READY X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ad6732820c56664be7d022002907ba62b981bd85;p=linux-beck.git target: Change default sense key of NOT_READY As the comment sais, this allows Solaris initiators to survive intermittent errors. The comment from someone reading the Solaris sources seem to imply that multipathing would be broken without this patch as well. Signed-off-by: Joern Engel Cc: Brian Bunker Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 3243ea790eab..493e9e589059 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2765,8 +2765,13 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, /* CURRENT ERROR */ buffer[0] = 0x70; buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; + /* + * Returning ILLEGAL REQUEST would cause immediate IO errors on + * Solaris initiators. Returning NOT READY instead means the + * operations will be retried a finite number of times and we + * can survive intermittent errors. + */ + buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; /* LOGICAL UNIT COMMUNICATION FAILURE */ buffer[SPC_ASC_KEY_OFFSET] = 0x08; break;