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MAXCMDSN: Stop sending new PDUs to the target when maxcmdsn is reached

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Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This commit is contained in:
Ronnie Sahlberg
2012-08-02 09:46:42 +10:00
parent 71be26ad03
commit a98b6e63f0
1 changed files with 8 additions and 3 deletions
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lib/socket.c
+8 -3
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@@ -204,8 +204,8 @@ iscsi_which_events(struct iscsi_context *iscsi)
{ {
int events = iscsi->is_connected ? POLLIN : POLLOUT; int events = iscsi->is_connected ? POLLIN : POLLOUT;
if (iscsi->outqueue) { if (iscsi->outqueue && iscsi->outqueue->cmdsn <= iscsi->maxcmdsn) {
events |= POLLOUT; events |= POLLOUT;
} }
return events; return events;
} }
@@ -338,9 +338,14 @@ iscsi_write_to_socket(struct iscsi_context *iscsi)
return -1; return -1;
} }
while (iscsi->outqueue != NULL) { while (iscsi->outqueue) {
ssize_t total; ssize_t total;
if (iscsi->outqueue->cmdsn > iscsi->maxcmdsn) {
/* stop sending. maxcmdsn is reached */
return 0;
}
total = iscsi->outqueue->outdata.size; total = iscsi->outqueue->outdata.size;
total = (total + 3) & 0xfffffffc; total = (total + 3) & 0xfffffffc;