[SCSI] qla2xxx: Reject loopback request if one is already in progress.
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>
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@ -746,6 +746,14 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
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goto done_free_dma_rsp;
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}
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if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
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ql_dbg(ql_dbg_user, vha, 0x70c4,
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"Loopback operation already in "
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"progress.\n");
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rval = -EAGAIN;
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goto done_free_dma_rsp;
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}
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ql_dbg(ql_dbg_user, vha, 0x70c0,
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"elreq.options=%04x\n", elreq.options);
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@ -24,7 +24,7 @@
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* | Async Events | 0x5071 | 0x502b-0x502f |
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* | | | 0x5047,0x5052 |
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* | Timer Routines | 0x6011 | |
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* | User Space Interactions | 0x70c3 | 0x7018,0x702e, |
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* | User Space Interactions | 0x70c4 | 0x7018,0x702e, |
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* | | | 0x7020,0x7024, |
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* | | | 0x7039,0x7045, |
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* | | | 0x7073-0x7075, |
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