[LIBATA] Blacklist certain Maxtor firmware revisions for FUA support (48bdc8ec) · Commits · 戴 / test

drivers/scsi/libata-scsi.c

+26 −1

Original line number	Diff line number	Diff line
		@@ -1700,6 +1700,31 @@ static unsigned int ata_msense_rw_recovery(u8 *ptr_io, const u8 last)
		return sizeof(def_rw_recovery_mpage);
		}

		/*
		* We can turn this into a real blacklist if it's needed, for now just
		* blacklist any Maxtor BANC1G10 revision firmware
		*/
		static int ata_dev_supports_fua(u16 *id)
		{
		unsigned char model[41], fw[9];

		if (!ata_id_has_fua(id))
		return 0;

		model[40] = '\0';
		fw[8] = '\0';

		ata_dev_id_string(id, model, ATA_ID_PROD_OFS, sizeof(model) - 1);
		ata_dev_id_string(id, fw, ATA_ID_FW_REV_OFS, sizeof(fw) - 1);

		if (strncmp(model, "Maxtor", 6))
		return 1;
		if (strncmp(fw, "BANC1G10", 8))
		return 1;

		return 0; /* blacklisted */
		}

		/**
		* ata_scsiop_mode_sense - Simulate MODE SENSE 6, 10 commands
		* @args: device IDENTIFY data / SCSI command of interest.
		@@ -1797,7 +1822,7 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args args, u8 rbuf,
		return 0;

		dpofua = 0;
		if (ata_id_has_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 &&
		if (ata_dev_supports_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 &&
		(!(dev->flags & ATA_DFLAG_PIO) \|\| dev->multi_count))
		dpofua = 1 << 4;