[SCSI] Block I/O while SG reset operation in progress - lpfc portion

This removes the duplicate functionality which had been added to
the lpfc driver.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 087c445..f81691f 100644 (file)
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -174,7 +174,6 @@ struct lpfc_hba {
        dma_addr_t slim2p_mapping;
        uint16_t pci_cfg_value;
 
-       struct semaphore hba_can_block;
        int32_t hba_state;
 
 #define LPFC_STATE_UNKNOWN        0    /* HBA state is unknown */

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index c8db857..f68ad76 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1451,7 +1451,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
                goto out_put_host;
 
        host->unique_id = phba->brd_no;
-       init_MUTEX(&phba->hba_can_block);
        INIT_LIST_HEAD(&phba->ctrspbuflist);
        INIT_LIST_HEAD(&phba->rnidrspbuflist);
        INIT_LIST_HEAD(&phba->freebufList);

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 7dc4c2e..aea1ee4 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -41,20 +41,6 @@
 #define LPFC_ABORT_WAIT  2
 
 
-static inline void
-lpfc_block_requests(struct lpfc_hba * phba)
-{
-       down(&phba->hba_can_block);
-       scsi_block_requests(phba->host);
-}
-
-static inline void
-lpfc_unblock_requests(struct lpfc_hba * phba)
-{
-       scsi_unblock_requests(phba->host);
-       up(&phba->hba_can_block);
-}
-
 /*
  * This routine allocates a scsi buffer, which contains all the necessary
  * information needed to initiate a SCSI I/O.  The non-DMAable buffer region
@@ -859,7 +845,6 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
        unsigned int loop_count = 0;
        int ret = SUCCESS;
 
-       lpfc_block_requests(phba);
        spin_lock_irq(shost->host_lock);
 
        lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
@@ -945,7 +930,6 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
                        cmnd->device->lun, cmnd->serial_number);
 
        spin_unlock_irq(shost->host_lock);
-       lpfc_unblock_requests(phba);
 
        return ret;
 }
@@ -963,7 +947,6 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
        int ret = FAILED;
        int cnt, loopcnt;
 
-       lpfc_block_requests(phba);
        spin_lock_irq(shost->host_lock);
        /*
         * If target is not in a MAPPED state, delay the reset until
@@ -1065,7 +1048,6 @@ out_free_scsi_buf:
 
 out:
        spin_unlock_irq(shost->host_lock);
-       lpfc_unblock_requests(phba);
        return ret;
 }
 
@@ -1080,7 +1062,6 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
        int cnt, loopcnt;
        struct lpfc_scsi_buf * lpfc_cmd;
 
-       lpfc_block_requests(phba);
        spin_lock_irq(shost->host_lock);
 
        lpfc_cmd = lpfc_get_scsi_buf(phba);
@@ -1163,7 +1144,6 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
                        phba->brd_no, ret);
 out:
        spin_unlock_irq(shost->host_lock);
-       lpfc_unblock_requests(phba);
        return ret;
 }