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Support for variable lenght CDB added

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@702 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2009-03-18 19:36:01 +00:00
parent 3fe295f5c1
commit 341f592a4a
8 changed files with 210 additions and 42 deletions
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iscsi-scst/kernel/nthread.c
+6 -12
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@@ -798,20 +798,17 @@ static int recv(struct iscsi_conn *conn)
iscsi_conn_init_read(conn,
(void __force __user *)&conn->rpadding, psz);
conn->read_state = RX_PADDING;
} else if (ddigest) {
} else if (ddigest)
conn->read_state = RX_INIT_DDIGEST;
goto init_ddigest;
} else {
else
conn->read_state = RX_END;
break;
}
break;
}
case RX_PADDING:
res = do_recv(conn, ddigest ? RX_INIT_DDIGEST : RX_END);
if (res <= 0 || conn->read_state != RX_INIT_DDIGEST)
break;
case RX_INIT_DDIGEST:
init_ddigest:
iscsi_conn_init_read(conn,
(void __force __user *)&cmnd->ddigest, sizeof(u32));
conn->read_state = RX_DDIGEST;
@@ -1511,19 +1508,16 @@ int iscsi_send(struct iscsi_conn *conn)
cmnd->pdu.datasize;
if (cmnd->conn->write_size != 0)
conn->write_state = TX_PADDING;
else if (ddigest) {
else if (ddigest)
conn->write_state = TX_INIT_DDIGEST;
goto init_ddigest;
} else {
else
conn->write_state = TX_END;
break;
}
break;
case TX_PADDING:
res = tx_padding(cmnd, ddigest ? TX_INIT_DDIGEST : TX_END);
if (res <= 0 || conn->write_state != TX_INIT_DDIGEST)
break;
case TX_INIT_DDIGEST:
init_ddigest:
cmnd->conn->write_size = sizeof(u32);
conn->write_state = TX_DDIGEST;
case TX_DDIGEST: