From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 20 Oct 2016 00:10:27 -0300 Subject: Linux-libre 4.8.2-gnu --- drivers/ata/libata-scsi.c | 84 ++++++++++++++++++++++++++++------------------- 1 file changed, 50 insertions(+), 34 deletions(-) (limited to 'drivers/ata/libata-scsi.c') diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index bfec66fb2..e207b33e4 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -304,7 +304,7 @@ static void ata_scsi_set_invalid_field(struct ata_device *dev, struct scsi_cmnd *cmd, u16 field, u8 bit) { ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x24, 0x0); - /* "Invalid field in cbd" */ + /* "Invalid field in CDB" */ scsi_set_sense_field_pointer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE, field, bit, 1); } @@ -1190,7 +1190,7 @@ static int atapi_drain_needed(struct request *rq) if (likely(rq->cmd_type != REQ_TYPE_BLOCK_PC)) return 0; - if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_WRITE)) + if (!blk_rq_bytes(rq) || op_is_write(req_op(rq))) return 0; return atapi_cmd_type(rq->cmd[0]) == ATAPI_MISC; @@ -2075,8 +2075,8 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) 0x03, 0x20, /* SBC-2 (no version claimed) */ - 0x02, - 0x60 /* SPC-3 (no version claimed) */ + 0x03, + 0x00 /* SPC-3 (no version claimed) */ }; const u8 versions_zbc[] = { 0x00, @@ -2097,7 +2097,10 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) 0, 0x5, /* claim SPC-3 version compatibility */ 2, - 95 - 4 + 95 - 4, + 0, + 0, + 2 }; VPRINTK("ENTER\n"); @@ -2109,8 +2112,10 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) (args->dev->link->ap->pflags & ATA_PFLAG_EXTERNAL)) hdr[1] |= (1 << 7); - if (args->dev->class == ATA_DEV_ZAC) + if (args->dev->class == ATA_DEV_ZAC) { hdr[0] = TYPE_ZBC; + hdr[2] = 0x7; /* claim SPC-5 version compatibility */ + } memcpy(rbuf, hdr, sizeof(hdr)); memcpy(&rbuf[8], "ATA ", 8); @@ -2314,7 +2319,7 @@ static unsigned int ata_scsiop_inq_b0(struct ata_scsi_args *args, u8 *rbuf) * with the unmap bit set. */ if (ata_id_has_trim(args->id)) { - put_unaligned_be64(65535 * 512 / 8, &rbuf[36]); + put_unaligned_be64(65535 * ATA_MAX_TRIM_RNUM, &rbuf[36]); put_unaligned_be32(1, &rbuf[28]); } @@ -2424,15 +2429,17 @@ static void modecpy(u8 *dest, const u8 *src, int n, bool changeable) static unsigned int ata_msense_caching(u16 *id, u8 *buf, bool changeable) { modecpy(buf, def_cache_mpage, sizeof(def_cache_mpage), changeable); - if (changeable || ata_id_wcache_enabled(id)) - buf[2] |= (1 << 2); /* write cache enable */ - if (!changeable && !ata_id_rahead_enabled(id)) - buf[12] |= (1 << 5); /* disable read ahead */ + if (changeable) { + buf[2] |= (1 << 2); /* ata_mselect_caching() */ + } else { + buf[2] |= (ata_id_wcache_enabled(id) << 2); /* write cache enable */ + buf[12] |= (!ata_id_rahead_enabled(id) << 5); /* disable read ahead */ + } return sizeof(def_cache_mpage); } /** - * ata_msense_ctl_mode - Simulate MODE SENSE control mode page + * ata_msense_control - Simulate MODE SENSE control mode page * @dev: ATA device of interest * @buf: output buffer * @changeable: whether changeable parameters are requested @@ -2442,12 +2449,17 @@ static unsigned int ata_msense_caching(u16 *id, u8 *buf, bool changeable) * LOCKING: * None. */ -static unsigned int ata_msense_ctl_mode(struct ata_device *dev, u8 *buf, +static unsigned int ata_msense_control(struct ata_device *dev, u8 *buf, bool changeable) { modecpy(buf, def_control_mpage, sizeof(def_control_mpage), changeable); - if (changeable && (dev->flags & ATA_DFLAG_D_SENSE)) - buf[2] |= (1 << 2); /* Descriptor sense requested */ + if (changeable) { + buf[2] |= (1 << 2); /* ata_mselect_control() */ + } else { + bool d_sense = (dev->flags & ATA_DFLAG_D_SENSE); + + buf[2] |= (d_sense << 2); /* descriptor format sense data */ + } return sizeof(def_control_mpage); } @@ -2566,13 +2578,13 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf) break; case CONTROL_MPAGE: - p += ata_msense_ctl_mode(args->dev, p, page_control == 1); + p += ata_msense_control(args->dev, p, page_control == 1); break; case ALL_MPAGES: p += ata_msense_rw_recovery(p, page_control == 1); p += ata_msense_caching(args->id, p, page_control == 1); - p += ata_msense_ctl_mode(args->dev, p, page_control == 1); + p += ata_msense_control(args->dev, p, page_control == 1); break; default: /* invalid page code */ @@ -3077,6 +3089,9 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) goto invalid_fld; } + if (ata_is_ncq(tf->protocol) && (cdb[2] & 0x3) == 0) + tf->protocol = ATA_PROT_NCQ_NODATA; + /* enable LBA */ tf->flags |= ATA_TFLAG_LBA; @@ -3125,8 +3140,8 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) tf->command = cdb[9]; } - /* For NCQ commands with FPDMA protocol, copy the tag value */ - if (tf->protocol == ATA_PROT_NCQ) + /* For NCQ commands copy the tag value */ + if (ata_is_ncq(tf->protocol)) tf->nsect = qc->tag << 3; /* enforce correct master/slave bit */ @@ -3305,7 +3320,13 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc) goto invalid_param_len; buf = page_address(sg_page(scsi_sglist(scmd))); - size = ata_set_lba_range_entries(buf, 512, block, n_block); + + if (n_block <= 65535 * ATA_MAX_TRIM_RNUM) { + size = ata_set_lba_range_entries(buf, ATA_MAX_TRIM_RNUM, block, n_block); + } else { + fp = 2; + goto invalid_fld; + } if (ata_ncq_enabled(dev) && ata_fpdma_dsm_supported(dev)) { /* Newer devices support queued TRIM commands */ @@ -3454,7 +3475,7 @@ static unsigned int ata_scsi_zbc_in_xlat(struct ata_queued_cmd *qc) goto invalid_param_len; } sect = n_block / 512; - options = cdb[14]; + options = cdb[14] & 0xbf; if (ata_ncq_enabled(qc->dev) && ata_fpdma_zac_mgmt_in_supported(qc->dev)) { @@ -3464,7 +3485,7 @@ static unsigned int ata_scsi_zbc_in_xlat(struct ata_queued_cmd *qc) tf->nsect = qc->tag << 3; tf->feature = sect & 0xff; tf->hob_feature = (sect >> 8) & 0xff; - tf->auxiliary = ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES; + tf->auxiliary = ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES | (options << 8); } else { tf->command = ATA_CMD_ZAC_MGMT_IN; tf->feature = ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES; @@ -3506,7 +3527,7 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc) struct scsi_cmnd *scmd = qc->scsicmd; struct ata_device *dev = qc->dev; const u8 *cdb = scmd->cmnd; - u8 reset_all, sa; + u8 all, sa; u64 block; u32 n_block; u16 fp = (u16)-1; @@ -3533,20 +3554,20 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc) if (block > dev->n_sectors) goto out_of_range; - reset_all = cdb[14] & 0x1; + all = cdb[14] & 0x1; if (ata_ncq_enabled(qc->dev) && ata_fpdma_zac_mgmt_out_supported(qc->dev)) { - tf->protocol = ATA_PROT_NCQ; + tf->protocol = ATA_PROT_NCQ_NODATA; tf->command = ATA_CMD_NCQ_NON_DATA; - tf->hob_nsect = ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT; + tf->feature = ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT; tf->nsect = qc->tag << 3; - tf->auxiliary = sa | (reset_all & 0x1) << 8; + tf->auxiliary = sa | ((u16)all << 8); } else { tf->protocol = ATA_PROT_NODATA; tf->command = ATA_CMD_ZAC_MGMT_OUT; tf->feature = sa; - tf->hob_feature = reset_all & 0x1; + tf->hob_feature = all; } tf->lbah = (block >> 16) & 0xff; tf->lbam = (block >> 8) & 0xff; @@ -3667,7 +3688,7 @@ static int ata_mselect_control(struct ata_queued_cmd *qc, /* * Check that read-only bits are not modified. */ - ata_msense_ctl_mode(dev, mpage, false); + ata_msense_control(dev, mpage, false); for (i = 0; i < CONTROL_MPAGE_LEN - 2; i++) { if (i == 0) continue; @@ -4039,11 +4060,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd) args.done = cmd->scsi_done; switch(scsicmd[0]) { - /* TODO: worth improving? */ - case FORMAT_UNIT: - ata_scsi_invalid_field(dev, cmd, 0); - break; - case INQUIRY: if (scsicmd[1] & 2) /* is CmdDt set? */ ata_scsi_invalid_field(dev, cmd, 1); -- cgit v1.2.3-54-g00ecf