Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block
[sfrench/cifs-2.6.git] / drivers / scsi / libata-scsi.c
index c1ebede14a481076e3fa2844210c86c17b59f080..cfbceb5047183e3096bb494bc3e2419c8956cd93 100644 (file)
@@ -1096,11 +1096,13 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
            scsicmd[0] == WRITE_16)
                tf->flags |= ATA_TFLAG_WRITE;
 
-       /* Calculate the SCSI LBA and transfer length. */
+       /* Calculate the SCSI LBA, transfer length and FUA. */
        switch (scsicmd[0]) {
        case READ_10:
        case WRITE_10:
                scsi_10_lba_len(scsicmd, &block, &n_block);
+               if (unlikely(scsicmd[1] & (1 << 3)))
+                       tf->flags |= ATA_TFLAG_FUA;
                break;
        case READ_6:
        case WRITE_6:
@@ -1115,6 +1117,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
        case READ_16:
        case WRITE_16:
                scsi_16_lba_len(scsicmd, &block, &n_block);
+               if (unlikely(scsicmd[1] & (1 << 3)))
+                       tf->flags |= ATA_TFLAG_FUA;
                break;
        default:
                DPRINTK("no-byte command\n");
@@ -1158,7 +1162,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
                        tf->device |= (block >> 24) & 0xf;
                }
 
-               ata_rwcmd_protocol(qc);
+               if (unlikely(ata_rwcmd_protocol(qc) < 0))
+                       goto invalid_fld;
 
                qc->nsect = n_block;
                tf->nsect = n_block & 0xff;
@@ -1176,7 +1181,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
                if ((block >> 28) || (n_block > 256))
                        goto out_of_range;
 
-               ata_rwcmd_protocol(qc);
+               if (unlikely(ata_rwcmd_protocol(qc) < 0))
+                       goto invalid_fld;
 
                /* Convert LBA to CHS */
                track = (u32)block / dev->sectors;
@@ -1711,6 +1717,7 @@ static unsigned int ata_msense_rw_recovery(u8 **ptr_io, const u8 *last)
 unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
                                  unsigned int buflen)
 {
+       struct ata_device *dev = args->dev;
        u8 *scsicmd = args->cmd->cmnd, *p, *last;
        const u8 sat_blk_desc[] = {
                0, 0, 0, 0,     /* number of blocks: sat unspecified */
@@ -1719,6 +1726,7 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
        };
        u8 pg, spg;
        unsigned int ebd, page_control, six_byte, output_len, alloc_len, minlen;
+       u8 dpofua;
 
        VPRINTK("ENTER\n");
 
@@ -1787,9 +1795,17 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
 
        if (minlen < 1)
                return 0;
+
+       dpofua = 0;
+       if (ata_id_has_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 &&
+           (!(dev->flags & ATA_DFLAG_PIO) || dev->multi_count))
+               dpofua = 1 << 4;
+
        if (six_byte) {
                output_len--;
                rbuf[0] = output_len;
+               if (minlen > 2)
+                       rbuf[2] |= dpofua;
                if (ebd) {
                        if (minlen > 3)
                                rbuf[3] = sizeof(sat_blk_desc);
@@ -1802,6 +1818,8 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
                rbuf[0] = output_len >> 8;
                if (minlen > 1)
                        rbuf[1] = output_len;
+               if (minlen > 3)
+                       rbuf[3] |= dpofua;
                if (ebd) {
                        if (minlen > 7)
                                rbuf[7] = sizeof(sat_blk_desc);
@@ -2462,7 +2480,7 @@ int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
                if (xlat_func)
                        ata_scsi_translate(ap, dev, cmd, done, xlat_func);
                else
-                       ata_scsi_simulate(dev->id, cmd, done);
+                       ata_scsi_simulate(ap, dev, cmd, done);
        } else
                ata_scsi_translate(ap, dev, cmd, done, atapi_xlat);
 
@@ -2485,14 +2503,16 @@ out_unlock:
  *     spin_lock_irqsave(host_set lock)
  */
 
-void ata_scsi_simulate(u16 *id,
+void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
                      struct scsi_cmnd *cmd,
                      void (*done)(struct scsi_cmnd *))
 {
        struct ata_scsi_args args;
        const u8 *scsicmd = cmd->cmnd;
 
-       args.id = id;
+       args.ap = ap;
+       args.dev = dev;
+       args.id = dev->id;
        args.cmd = cmd;
        args.done = done;