]> asedeno.scripts.mit.edu Git - linux.git/blobdiff - drivers/ide/ide-cd.c
ide: convert to blk-mq
[linux.git] / drivers / ide / ide-cd.c
index f9b59d41813f96694cdc425070959afa3b2542bd..4ecaf2ace4cbe335706cdc674e1d0b67a636e96c 100644 (file)
@@ -258,11 +258,22 @@ static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
                /*
                 * take a breather
                 */
-               blk_delay_queue(drive->queue, 1);
+               blk_mq_requeue_request(rq, false);
+               blk_mq_delay_kick_requeue_list(drive->queue, 1);
                return 1;
        }
 }
 
+static void ide_cd_free_sense(ide_drive_t *drive)
+{
+       if (!drive->sense_rq)
+               return;
+
+       blk_mq_free_request(drive->sense_rq);
+       drive->sense_rq = NULL;
+       drive->sense_rq_armed = false;
+}
+
 /**
  * Returns:
  * 0: if the request should be continued.
@@ -516,6 +527,82 @@ static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
        return false;
 }
 
+/* standard prep_rq_fn that builds 10 byte cmds */
+static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
+{
+       int hard_sect = queue_logical_block_size(q);
+       long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
+       unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
+       struct scsi_request *req = scsi_req(rq);
+
+       if (rq_data_dir(rq) == READ)
+               req->cmd[0] = GPCMD_READ_10;
+       else
+               req->cmd[0] = GPCMD_WRITE_10;
+
+       /*
+        * fill in lba
+        */
+       req->cmd[2] = (block >> 24) & 0xff;
+       req->cmd[3] = (block >> 16) & 0xff;
+       req->cmd[4] = (block >>  8) & 0xff;
+       req->cmd[5] = block & 0xff;
+
+       /*
+        * and transfer length
+        */
+       req->cmd[7] = (blocks >> 8) & 0xff;
+       req->cmd[8] = blocks & 0xff;
+       req->cmd_len = 10;
+       return BLKPREP_OK;
+}
+
+/*
+ * Most of the SCSI commands are supported directly by ATAPI devices.
+ * This transform handles the few exceptions.
+ */
+static int ide_cdrom_prep_pc(struct request *rq)
+{
+       u8 *c = scsi_req(rq)->cmd;
+
+       /* transform 6-byte read/write commands to the 10-byte version */
+       if (c[0] == READ_6 || c[0] == WRITE_6) {
+               c[8] = c[4];
+               c[5] = c[3];
+               c[4] = c[2];
+               c[3] = c[1] & 0x1f;
+               c[2] = 0;
+               c[1] &= 0xe0;
+               c[0] += (READ_10 - READ_6);
+               scsi_req(rq)->cmd_len = 10;
+               return BLKPREP_OK;
+       }
+
+       /*
+        * it's silly to pretend we understand 6-byte sense commands, just
+        * reject with ILLEGAL_REQUEST and the caller should take the
+        * appropriate action
+        */
+       if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
+               scsi_req(rq)->result = ILLEGAL_REQUEST;
+               return BLKPREP_KILL;
+       }
+
+       return BLKPREP_OK;
+}
+
+static int ide_cdrom_prep_fn(ide_drive_t *drive, struct request *rq)
+{
+       if (!blk_rq_is_passthrough(rq)) {
+               scsi_req_init(scsi_req(rq));
+
+               return ide_cdrom_prep_fs(drive->queue, rq);
+       } else if (blk_rq_is_scsi(rq))
+               return ide_cdrom_prep_pc(rq);
+
+       return 0;
+}
+
 static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 {
        ide_hwif_t *hwif = drive->hwif;
@@ -675,7 +762,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 out_end:
        if (blk_rq_is_scsi(rq) && rc == 0) {
                scsi_req(rq)->resid_len = 0;
-               blk_end_request_all(rq, BLK_STS_OK);
+               blk_mq_end_request(rq, BLK_STS_OK);
                hwif->rq = NULL;
        } else {
                if (sense && uptodate)
@@ -705,6 +792,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
                if (sense && rc == 2)
                        ide_error(drive, "request sense failure", stat);
        }
+
+       ide_cd_free_sense(drive);
        return ide_stopped;
 }
 
@@ -729,7 +818,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
                 * We may be retrying this request after an error.  Fix up any
                 * weirdness which might be present in the request packet.
                 */
-               q->prep_rq_fn(q, rq);
+               ide_cdrom_prep_fn(drive, rq);
        }
 
        /* fs requests *must* be hardware frame aligned */
@@ -1323,82 +1412,6 @@ static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
        return nslots;
 }
 
-/* standard prep_rq_fn that builds 10 byte cmds */
-static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
-{
-       int hard_sect = queue_logical_block_size(q);
-       long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
-       unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
-       struct scsi_request *req = scsi_req(rq);
-
-       q->initialize_rq_fn(rq);
-
-       if (rq_data_dir(rq) == READ)
-               req->cmd[0] = GPCMD_READ_10;
-       else
-               req->cmd[0] = GPCMD_WRITE_10;
-
-       /*
-        * fill in lba
-        */
-       req->cmd[2] = (block >> 24) & 0xff;
-       req->cmd[3] = (block >> 16) & 0xff;
-       req->cmd[4] = (block >>  8) & 0xff;
-       req->cmd[5] = block & 0xff;
-
-       /*
-        * and transfer length
-        */
-       req->cmd[7] = (blocks >> 8) & 0xff;
-       req->cmd[8] = blocks & 0xff;
-       req->cmd_len = 10;
-       return BLKPREP_OK;
-}
-
-/*
- * Most of the SCSI commands are supported directly by ATAPI devices.
- * This transform handles the few exceptions.
- */
-static int ide_cdrom_prep_pc(struct request *rq)
-{
-       u8 *c = scsi_req(rq)->cmd;
-
-       /* transform 6-byte read/write commands to the 10-byte version */
-       if (c[0] == READ_6 || c[0] == WRITE_6) {
-               c[8] = c[4];
-               c[5] = c[3];
-               c[4] = c[2];
-               c[3] = c[1] & 0x1f;
-               c[2] = 0;
-               c[1] &= 0xe0;
-               c[0] += (READ_10 - READ_6);
-               scsi_req(rq)->cmd_len = 10;
-               return BLKPREP_OK;
-       }
-
-       /*
-        * it's silly to pretend we understand 6-byte sense commands, just
-        * reject with ILLEGAL_REQUEST and the caller should take the
-        * appropriate action
-        */
-       if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
-               scsi_req(rq)->result = ILLEGAL_REQUEST;
-               return BLKPREP_KILL;
-       }
-
-       return BLKPREP_OK;
-}
-
-static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
-{
-       if (!blk_rq_is_passthrough(rq))
-               return ide_cdrom_prep_fs(q, rq);
-       else if (blk_rq_is_scsi(rq))
-               return ide_cdrom_prep_pc(rq);
-
-       return 0;
-}
-
 struct cd_list_entry {
        const char      *id_model;
        const char      *id_firmware;
@@ -1508,7 +1521,7 @@ static int ide_cdrom_setup(ide_drive_t *drive)
 
        ide_debug_log(IDE_DBG_PROBE, "enter");
 
-       blk_queue_prep_rq(q, ide_cdrom_prep_fn);
+       drive->prep_rq = ide_cdrom_prep_fn;
        blk_queue_dma_alignment(q, 31);
        blk_queue_update_dma_pad(q, 15);
 
@@ -1569,7 +1582,7 @@ static void ide_cd_release(struct device *dev)
        if (devinfo->handle == drive)
                unregister_cdrom(devinfo);
        drive->driver_data = NULL;
-       blk_queue_prep_rq(drive->queue, NULL);
+       drive->prep_rq = NULL;
        g->private_data = NULL;
        put_disk(g);
        kfree(info);