[PATCH] CmdSN fixes

As previously discussed, this is a slight modification of Ming's CmdSN
patch. It fixes {Max,Exp}CmdSN values for discovery sessions and also
incorporates a workaround to the AIX CmdSN issue by incrementing
MaxCmdSN by 1.

I hope it's alright to send this as one patch, as Ming's original patch
formatting was corrupted and the changes are small enough.

@K Chapman
Could you please verify that the AIX issue is fixed by this patch? To do
so, please use svn rev. 21 and apply this one on top of it. Thanks.

Arne

Index: usr/iscsid.c
===================================================================
--- usr/iscsid.c        (Revision 21)
+++ usr/iscsid.c        (Arbeitskopie)
@@ -385,10 +385,9 @@
 /*             } */
 
                ki->param_get(conn->tid, 0, key_session, conn->session_param);
-               conn->exp_cmd_sn = be32_to_cpu(req->cmd_sn);
-               log_debug(1, "exp_cmd_sn: %d,%d", conn->exp_cmd_sn, 
req->cmd_sn);
-               conn->max_cmd_sn = conn->exp_cmd_sn;
        }
+       conn->exp_cmd_sn = be32_to_cpu(req->cmd_sn);
+       log_debug(1, "exp_cmd_sn: %d,%d", conn->exp_cmd_sn, req->cmd_sn);
        text_key_add(conn, "TargetPortalGroupTag", "1");
 }
 
@@ -572,6 +571,7 @@
        rsp->sid = conn->sid;
        rsp->stat_sn = cpu_to_be32(conn->stat_sn++);
        rsp->exp_cmd_sn = cpu_to_be32(conn->exp_cmd_sn);
+       conn->max_cmd_sn = conn->exp_cmd_sn + 1;
        rsp->max_cmd_sn = cpu_to_be32(conn->max_cmd_sn);
        return;
 init_err:
@@ -658,6 +658,7 @@
 
        rsp->stat_sn = cpu_to_be32(conn->stat_sn++);
        rsp->exp_cmd_sn = cpu_to_be32(conn->exp_cmd_sn);
+       conn->max_cmd_sn = conn->exp_cmd_sn + 1;
        rsp->max_cmd_sn = cpu_to_be32(conn->max_cmd_sn);
 }
 
@@ -676,6 +677,7 @@
 
        rsp->stat_sn = cpu_to_be32(conn->stat_sn++);
        rsp->exp_cmd_sn = cpu_to_be32(conn->exp_cmd_sn);
+       conn->max_cmd_sn = conn->exp_cmd_sn + 1;
        rsp->max_cmd_sn = cpu_to_be32(conn->max_cmd_sn);
 }
 




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