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Add a feature to request transparent reconnects without any UA

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Normal applications want the current behaviour where we have the library
consume any/all of the UnitAttentions that the target may have queued on the
initial connection, but when we reconnect the session after a failure the
library will pass all the UAs back to the application to process.

Some applications, such as the test suite or really trivial applications
might not want to have to deal with handling of UAs and just "make it work".
Those applications can now request that upon any reconnection of the session
that libiscsi will automatically consume any and all UAs and hide them from
the application.

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This commit is contained in:
Ronnie Sahlberg
2015-12-13 14:29:32 -08:00
parent 74fc637eeb
commit 3c44092635
6 changed files with 29 additions and 1 deletions
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1
include/iscsi-private.h
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@@ -159,6 +159,7 @@ struct iscsi_context {
int scsi_timeout;
struct iscsi_context *old_iscsi;
int retry_cnt;
int no_ua_on_reconnect;
};
#define ISCSI_PDU_IMMEDIATE 0x40

6
include/iscsi.h
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@@ -1305,6 +1305,12 @@ iscsi_set_bind_interfaces(struct iscsi_context *iscsi, char * interfaces);
EXTERN void
iscsi_set_reconnect_max_retries(struct iscsi_context *iscsi, int count);
/* Set to true to have libiscsi use TESTUNITREADY and consume any/all
UnitAttentions that may have triggered in the target.
*/
EXTERN void
iscsi_set_no_ua_on_reconnect(struct iscsi_context *iscsi, int state);
#ifdef __cplusplus
}
#endif