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[SCSI] qla2xxx: Reject loopback request if one is already in progress.

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If another function on the port has initiated a loopback operation do not
process the current request.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Chad Dupuis 2013-02-08 01:57:46 -05:00 committed by James Bottomley
parent 37f489b580
commit 1bcc46cb74
2 changed files with 9 additions and 1 deletions
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8
drivers/scsi/qla2xxx/qla_bsg.c
View file

@ -746,6 +746,14 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
goto done_free_dma_rsp;
}
if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
ql_dbg(ql_dbg_user, vha, 0x70c4,
"Loopback operation already in "
"progress.\n");
rval = -EAGAIN;
goto done_free_dma_rsp;
}
ql_dbg(ql_dbg_user, vha, 0x70c0,
"elreq.options=%04x\n", elreq.options);

2
drivers/scsi/qla2xxx/qla_dbg.c
View file

@ -24,7 +24,7 @@
* | Async Events | 0x5071 | 0x502b-0x502f |
* | | | 0x5047,0x5052 |
* | Timer Routines | 0x6011 | |
* | User Space Interactions | 0x70c3 | 0x7018,0x702e, |
* | User Space Interactions | 0x70c4 | 0x7018,0x702e, |
* | | | 0x7020,0x7024, |
* | | | 0x7039,0x7045, |
* | | | 0x7073-0x7075, |