diff options
| author | James Bottomley <JBottomley@Parallels.com> | 2013-05-08 02:38:18 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-04 22:15:59 +0400 |
| commit | e73823f7a2c921dcf068d34ea03bd682498d9e42 (patch) | |
| tree | 8b5b2262352572b3069a671f7578ea6d5ef07162 /drivers/scsi/pm8001/pm80xx_hwi.c | |
| parent | 9edf7d75ee5f21663a0183d21f702682d0ef132f (diff) | |
| download | linux-e73823f7a2c921dcf068d34ea03bd682498d9e42.tar.xz | |
[SCSI] libsas: implement > 16 byte CDB support
Remove the arbitrary expectation in libsas that all SCSI commands are 16 bytes
or less. Instead do all copies via cmd->cmd_len (and use a pointer to this in
the libsas task instead of a copy). Note that this still doesn't enable > 16
byte CDB support in the underlying drivers because their internal format has
to be fixed and the wire format of > 16 byte CDBs according to the SAS spec is
different. the libsas drivers (isci, aic94xx, mvsas and pm8xxx are all
updated for this change.
Cc: Lukasz Dorau <lukasz.dorau@intel.com>
Cc: Maciej Patelczyk <maciej.patelczyk@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jack Wang <xjtuwjp@gmail.com>
Cc: Lindar Liu <lindar_liu@usish.com>
Cc: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/pm8001/pm80xx_hwi.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm80xx_hwi.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 302514d8157b..f6c65eeafb5d 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -3559,9 +3559,9 @@ err_out: static int check_enc_sas_cmd(struct sas_task *task) { - if ((task->ssp_task.cdb[0] == READ_10) - || (task->ssp_task.cdb[0] == WRITE_10) - || (task->ssp_task.cdb[0] == WRITE_VERIFY)) + u8 cmd = task->ssp_task.cmd->cmnd[0]; + + if (cmd == READ_10 || cmd == WRITE_10 || cmd == WRITE_VERIFY) return 1; else return 0; @@ -3624,7 +3624,8 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha, ssp_cmd.ssp_iu.efb_prio_attr |= 0x80; ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3); ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7); - memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cdb, 16); + memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd, + task->ssp_task.cmd->cmd_len); circularQ = &pm8001_ha->inbnd_q_tbl[0]; /* Check if encryption is set */ @@ -3632,7 +3633,7 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha, !(pm8001_ha->encrypt_info.status) && check_enc_sas_cmd(task)) { PM8001_IO_DBG(pm8001_ha, pm8001_printk( "Encryption enabled.Sending Encrypt SAS command 0x%x\n", - task->ssp_task.cdb[0])); + task->ssp_task.cmd->cmnd[0])); opc = OPC_INB_SSP_INI_DIF_ENC_IO; /* enable encryption. 0 for SAS 1.1 and SAS 2.0 compatible TLR*/ ssp_cmd.dad_dir_m_tlr = cpu_to_le32 @@ -3666,14 +3667,14 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha, /* XTS mode. All other fields are 0 */ ssp_cmd.key_cmode = 0x6 << 4; /* set tweak values. Should be the start lba */ - ssp_cmd.twk_val0 = cpu_to_le32((task->ssp_task.cdb[2] << 24) | - (task->ssp_task.cdb[3] << 16) | - (task->ssp_task.cdb[4] << 8) | - (task->ssp_task.cdb[5])); + ssp_cmd.twk_val0 = cpu_to_le32((task->ssp_task.cmd->cmnd[2] << 24) | + (task->ssp_task.cmd->cmnd[3] << 16) | + (task->ssp_task.cmd->cmnd[4] << 8) | + (task->ssp_task.cmd->cmnd[5])); } else { PM8001_IO_DBG(pm8001_ha, pm8001_printk( "Sending Normal SAS command 0x%x inb q %x\n", - task->ssp_task.cdb[0], inb)); + task->ssp_task.cmd->cmnd[0], inb)); /* fill in PRD (scatter/gather) table, if any */ if (task->num_scatter > 1) { pm8001_chip_make_sg(task->scatter, ccb->n_elem, |