git: 320fd259c69e - stable/12 - pms(4): Do not return CAM_REQ_CMP on errors.

[Alexander Motin]

The branch stable/12 has been updated by mav:

URL: https://cgit.FreeBSD.org/src/commit/?id=320fd259c69ef16e9b8d64424f66eeed8ddc3c77

commit 320fd259c69ef16e9b8d64424f66eeed8ddc3c77
Author:     Alexander Motin <mav at FreeBSD.org>
AuthorDate: 2021-04-16 19:16:09 +0000
Commit:     Alexander Motin <mav at FreeBSD.org>
CommitDate: 2021-04-23 01:09:07 +0000

    pms(4): Do not return CAM_REQ_CMP on errors.
    
    It is a direct request for data corruptions, one report of which we
    have received.  I am very surprised that only one.
    
    MFC after:      1 week
    Sponsored by:   iXsystems, Inc.
    
    (cherry picked from commit 8434a65ce49bd6bc6779f0e57b0ce0f4bc46f48e)
---
 sys/dev/pms/freebsd/driver/ini/src/agtiapi.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/sys/dev/pms/freebsd/driver/ini/src/agtiapi.c b/sys/dev/pms/freebsd/driver/ini/src/agtiapi.c
index 8a6865bbccc9..711fb027f59e 100644
--- a/sys/dev/pms/freebsd/driver/ini/src/agtiapi.c
+++ b/sys/dev/pms/freebsd/driver/ini/src/agtiapi.c
@@ -2629,9 +2629,11 @@ static void agtiapi_PrepareSGListCB( void *arg,
     {
       AGTIAPI_PRINTK("agtiapi_PrepareSGListCB: error status 0x%x\n", error);
       bus_dmamap_unload(pmcsc->buffer_dmat, pccb->CCB_dmamap);
-      bus_dmamap_destroy(pmcsc->buffer_dmat, pccb->CCB_dmamap);
       agtiapi_FreeCCB(pmcsc, pccb);
-      ccb->ccb_h.status = CAM_REQ_CMP;
+      if (error == EFBIG)
+        ccb->ccb_h.status = CAM_REQ_TOO_BIG;
+      else
+        ccb->ccb_h.status = CAM_REQ_CMP_ERR;
       xpt_done(ccb);
       return;
     }
@@ -2643,9 +2645,8 @@ static void agtiapi_PrepareSGListCB( void *arg,
                     " AGTIAPI_MAX_DMA_SEGS %d\n", 
                     nsegs, AGTIAPI_MAX_DMA_SEGS );
     bus_dmamap_unload(pmcsc->buffer_dmat, pccb->CCB_dmamap);
-    bus_dmamap_destroy(pmcsc->buffer_dmat, pccb->CCB_dmamap);
     agtiapi_FreeCCB(pmcsc, pccb);
-    ccb->ccb_h.status = CAM_REQ_CMP;
+    ccb->ccb_h.status = CAM_REQ_TOO_BIG;
     xpt_done(ccb);   
     return;
   }
@@ -3689,9 +3690,11 @@ static void agtiapi_PrepareSMPSGListCB( void *arg,
       AGTIAPI_PRINTK( "agtiapi_PrepareSMPSGListCB: error status 0x%x\n",
                       error );
       bus_dmamap_unload( pmcsc->buffer_dmat, pccb->CCB_dmamap );
-      bus_dmamap_destroy( pmcsc->buffer_dmat, pccb->CCB_dmamap );
       agtiapi_FreeCCB( pmcsc, pccb );
-      ccb->ccb_h.status = CAM_REQ_CMP;
+      if (error == EFBIG)
+        ccb->ccb_h.status = CAM_REQ_TOO_BIG;
+      else
+        ccb->ccb_h.status = CAM_REQ_CMP_ERR;
       xpt_done( ccb );
       return;
     }
@@ -3703,9 +3706,8 @@ static void agtiapi_PrepareSMPSGListCB( void *arg,
                     "AGTIAPI_MAX_DMA_SEGS %d\n",
                     nsegs, AGTIAPI_MAX_DMA_SEGS );
     bus_dmamap_unload( pmcsc->buffer_dmat, pccb->CCB_dmamap );
-    bus_dmamap_destroy( pmcsc->buffer_dmat, pccb->CCB_dmamap );
     agtiapi_FreeCCB( pmcsc, pccb );
-    ccb->ccb_h.status = CAM_REQ_CMP;
+    ccb->ccb_h.status = CAM_REQ_TOO_BIG;
     xpt_done( ccb );
     return;
   }
@@ -4410,7 +4412,7 @@ static int agtiapi_QueueSMP(struct agtiapi_softc *pmcsc, union ccb * ccb)
   if ((pccb = agtiapi_GetCCB(pmcsc)) == NULL)
   {
     AGTIAPI_PRINTK("agtiapi_QueueSMP: GetCCB ERROR\n");
-    ccb->ccb_h.status = CAM_REQ_CMP;
+    ccb->ccb_h.status = CAM_REQ_CMP_ERR;
     xpt_done(ccb);
     return tiBusy;
   }