Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
authorLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Nov 2016 21:48:05 +0000 (13:48 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Nov 2016 21:48:05 +0000 (13:48 -0800)
Pull SCSI fixes from James Bottomley:
 "Two small fixes.

  One prevents timeouts on mpt3sas when trying to use the secure erase
  protocol which causes the erase protocol to be aborted. The second is
  a regression in a prior fix which causes all commands to abort during
  PCI extended error recovery, which is incorrect because PCI EEH is
  independent from what's happening on the FC transport"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: do not abort all commands in the adapter during EEH recovery
  scsi: mpt3sas: Fix secure erase premature termination

drivers/scsi/mpt3sas/mpt3sas_scsih.c
drivers/scsi/qla2xxx/qla_os.c

index 8aa769a..91b70bc 100644 (file)
@@ -4010,7 +4010,10 @@ _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
            SAM_STAT_CHECK_CONDITION;
 }
 
-
+static inline bool ata_12_16_cmd(struct scsi_cmnd *scmd)
+{
+       return (scmd->cmnd[0] == ATA_12 || scmd->cmnd[0] == ATA_16);
+}
 
 /**
  * scsih_qcmd - main scsi request entry point
@@ -4038,6 +4041,13 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
        if (ioc->logging_level & MPT_DEBUG_SCSI)
                scsi_print_command(scmd);
 
+       /*
+        * Lock the device for any subsequent command until command is
+        * done.
+        */
+       if (ata_12_16_cmd(scmd))
+               scsi_internal_device_block(scmd->device);
+
        sas_device_priv_data = scmd->device->hostdata;
        if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
                scmd->result = DID_NO_CONNECT << 16;
@@ -4613,6 +4623,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
        if (scmd == NULL)
                return 1;
 
+       if (ata_12_16_cmd(scmd))
+               scsi_internal_device_unblock(scmd->device, SDEV_RUNNING);
+
        mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
 
        if (mpi_reply == NULL) {
index 567fa08..56d6142 100644 (file)
@@ -1456,15 +1456,20 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
                for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
                        sp = req->outstanding_cmds[cnt];
                        if (sp) {
-                               /* Get a reference to the sp and drop the lock.
-                                * The reference ensures this sp->done() call
-                                * - and not the call in qla2xxx_eh_abort() -
-                                * ends the SCSI command (with result 'res').
+                               /* Don't abort commands in adapter during EEH
+                                * recovery as it's not accessible/responding.
                                 */
-                               sp_get(sp);
-                               spin_unlock_irqrestore(&ha->hardware_lock, flags);
-                               qla2xxx_eh_abort(GET_CMD_SP(sp));
-                               spin_lock_irqsave(&ha->hardware_lock, flags);
+                               if (!ha->flags.eeh_busy) {
+                                       /* Get a reference to the sp and drop the lock.
+                                        * The reference ensures this sp->done() call
+                                        * - and not the call in qla2xxx_eh_abort() -
+                                        * ends the SCSI command (with result 'res').
+                                        */
+                                       sp_get(sp);
+                                       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+                                       qla2xxx_eh_abort(GET_CMD_SP(sp));
+                                       spin_lock_irqsave(&ha->hardware_lock, flags);
+                               }
                                req->outstanding_cmds[cnt] = NULL;
                                sp->done(vha, sp, res);
                        }