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author | Martin K. Petersen <martin.petersen@oracle.com> | 2009-09-18 17:32:59 -0400 |
---|---|---|
committer | James Bottomley <James.Bottomley@suse.de> | 2009-10-02 09:46:25 -0500 |
commit | c6af404215bab0d333accbb497f835d10cb0050c (patch) | |
tree | fc58c360c3d678405b4bd38fd7894af9c8b91edd /drivers/scsi | |
parent | 6e883b0e42739aa560133cfaf41be1138c51a500 (diff) | |
download | kernel_samsung_espresso10-c6af404215bab0d333accbb497f835d10cb0050c.zip kernel_samsung_espresso10-c6af404215bab0d333accbb497f835d10cb0050c.tar.gz kernel_samsung_espresso10-c6af404215bab0d333accbb497f835d10cb0050c.tar.bz2 |
[SCSI] Deprecate SCSI_PROT_*_CONVERT operations
The checksum format is orthogonal to whether the protection information
is being passed on beyond the HBA or not. It is perfectly valid to use
a non-T10 CRC with WRITE_STRIP and READ_INSERT.
Consequently it no longer makes sense to explicitly refer to the
conversion in the protection operation. Update sd_dif and lpfc
accordingly.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Ihab Hamadi <Ihab.Hamadi@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 15 | ||||
-rw-r--r-- | drivers/scsi/sd_dif.c | 20 |
2 files changed, 7 insertions, 28 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 61d0897..c88f59f 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -56,8 +56,6 @@ static char *dif_op_str[] = { "SCSI_PROT_WRITE_INSERT", "SCSI_PROT_READ_PASS", "SCSI_PROT_WRITE_PASS", - "SCSI_PROT_READ_CONVERT", - "SCSI_PROT_WRITE_CONVERT" }; static void lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); @@ -1131,13 +1129,11 @@ lpfc_sc_to_sli_prof(struct scsi_cmnd *sc) ret_prof = LPFC_PROF_A1; break; - case SCSI_PROT_READ_CONVERT: - case SCSI_PROT_WRITE_CONVERT: + case SCSI_PROT_READ_PASS: + case SCSI_PROT_WRITE_PASS: ret_prof = LPFC_PROF_AST1; break; - case SCSI_PROT_READ_PASS: - case SCSI_PROT_WRITE_PASS: case SCSI_PROT_NORMAL: default: printk(KERN_ERR "Bad op/guard:%d/%d combination\n", @@ -1157,8 +1153,6 @@ lpfc_sc_to_sli_prof(struct scsi_cmnd *sc) ret_prof = LPFC_PROF_C1; break; - case SCSI_PROT_READ_CONVERT: - case SCSI_PROT_WRITE_CONVERT: case SCSI_PROT_READ_INSERT: case SCSI_PROT_WRITE_STRIP: case SCSI_PROT_NORMAL: @@ -1209,8 +1203,7 @@ lpfc_get_cmd_dif_parms(struct scsi_cmnd *sc, uint16_t *apptagmask, static int cnt; if (protcnt && (op == SCSI_PROT_WRITE_STRIP || - op == SCSI_PROT_WRITE_PASS || - op == SCSI_PROT_WRITE_CONVERT)) { + op == SCSI_PROT_WRITE_PASS)) { cnt++; spt = page_address(sg_page(scsi_prot_sglist(sc))) + @@ -1501,8 +1494,6 @@ lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) case SCSI_PROT_WRITE_STRIP: case SCSI_PROT_READ_PASS: case SCSI_PROT_WRITE_PASS: - case SCSI_PROT_WRITE_CONVERT: - case SCSI_PROT_READ_CONVERT: ret = LPFC_PG_TYPE_DIF_BUF; break; default: diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c index 82f14a9..84224dd 100644 --- a/drivers/scsi/sd_dif.c +++ b/drivers/scsi/sd_dif.c @@ -364,15 +364,9 @@ void sd_dif_config_host(struct scsi_disk *sdkp) */ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsigned int type) { - int csum_convert, prot_op; + int prot_op; - prot_op = 0; - - /* Convert checksum? */ - if (scsi_host_get_guard(scmd->device->host) != SHOST_DIX_GUARD_CRC) - csum_convert = 1; - else - csum_convert = 0; + prot_op = SCSI_PROT_NORMAL; BUG_ON(dif && (scmd->cmnd[0] == READ_6 || scmd->cmnd[0] == WRITE_6)); @@ -382,10 +376,7 @@ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsig case READ_12: case READ_16: if (dif && dix) - if (csum_convert) - prot_op = SCSI_PROT_READ_CONVERT; - else - prot_op = SCSI_PROT_READ_PASS; + prot_op = SCSI_PROT_READ_PASS; else if (dif && !dix) prot_op = SCSI_PROT_READ_STRIP; else if (!dif && dix) @@ -398,10 +389,7 @@ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsig case WRITE_12: case WRITE_16: if (dif && dix) - if (csum_convert) - prot_op = SCSI_PROT_WRITE_CONVERT; - else - prot_op = SCSI_PROT_WRITE_PASS; + prot_op = SCSI_PROT_WRITE_PASS; else if (dif && !dix) prot_op = SCSI_PROT_WRITE_INSERT; else if (!dif && dix) |