}
/*
- * Given a scsi cmnd, determine the BlockGuard profile to be used
- * with the cmd
+ * Given a scsi cmnd, determine the BlockGuard opcodes to be used with it
+ * @sc: The SCSI command to examine
+ * @txopt: (out) BlockGuard operation for transmitted data
+ * @rxopt: (out) BlockGuard operation for received data
+ *
+ * Returns: zero on success; non-zero if tx and/or rx op cannot be determined
+ *
*/
static int
-lpfc_sc_to_sli_prof(struct lpfc_hba *phba, struct scsi_cmnd *sc)
+lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc,
+ uint8_t *txop, uint8_t *rxop)
{
uint8_t guard_type = scsi_host_get_guard(sc->device->host);
- uint8_t ret_prof = LPFC_PROF_INVALID;
+ uint8_t ret = 0;
if (guard_type == SHOST_DIX_GUARD_IP) {
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
- ret_prof = LPFC_PROF_AST2;
+ *txop = BG_OP_IN_CSUM_OUT_NODIF;
+ *rxop = BG_OP_IN_NODIF_OUT_CSUM;
break;
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
- ret_prof = LPFC_PROF_A1;
+ *txop = BG_OP_IN_NODIF_OUT_CRC;
+ *rxop = BG_OP_IN_CRC_OUT_NODIF;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
- ret_prof = LPFC_PROF_AST1;
+ *txop = BG_OP_IN_CSUM_OUT_CRC;
+ *rxop = BG_OP_IN_CRC_OUT_CSUM;
break;
case SCSI_PROT_NORMAL:
default:
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
- "9063 BLKGRD:Bad op/guard:%d/%d combination\n",
+ "9063 BLKGRD: Bad op/guard:%d/%d combination\n",
scsi_get_prot_op(sc), guard_type);
+ ret = 1;
break;
}
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
- ret_prof = LPFC_PROF_A1;
+ *txop = BG_OP_IN_NODIF_OUT_CRC;
+ *rxop = BG_OP_IN_CRC_OUT_NODIF;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
- ret_prof = LPFC_PROF_C1;
+ *txop = BG_OP_IN_CRC_OUT_CRC;
+ *rxop = BG_OP_IN_CRC_OUT_CRC;
break;
case SCSI_PROT_READ_INSERT:
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9075 BLKGRD: Bad op/guard:%d/%d combination\n",
scsi_get_prot_op(sc), guard_type);
+ ret = 1;
break;
}
} else {
BUG();
}
- return ret_prof;
+ return ret;
}
struct scsi_dif_tuple {
* The buffer list consists of just one protection group described
* below:
* +-------------------------+
- * start of prot group --> | PDE_1 |
+ * start of prot group --> | PDE_5 |
+ * +-------------------------+
+ * | PDE_6 |
* +-------------------------+
* | Data BDE |
* +-------------------------+
struct ulp_bde64 *bpl, int datasegcnt)
{
struct scatterlist *sgde = NULL; /* s/g data entry */
- struct lpfc_pde *pde1 = NULL;
+ struct lpfc_pde5 *pde5 = NULL;
+ struct lpfc_pde6 *pde6 = NULL;
dma_addr_t physaddr;
- int i = 0, num_bde = 0;
+ int i = 0, num_bde = 0, status;
int datadir = sc->sc_data_direction;
- int prof = LPFC_PROF_INVALID;
unsigned blksize;
uint32_t reftag;
uint16_t apptagmask, apptagval;
+ uint8_t txop, rxop;
- pde1 = (struct lpfc_pde *) bpl;
- prof = lpfc_sc_to_sli_prof(phba, sc);
-
- if (prof == LPFC_PROF_INVALID)
+ status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
+ if (status)
goto out;
- /* extract some info from the scsi command for PDE1*/
+ /* extract some info from the scsi command for pde*/
blksize = lpfc_cmd_blksize(sc);
lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag);
- /* setup PDE1 with what we have */
- lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize,
- BG_EC_STOP_ERR);
- lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag);
+ /* setup PDE5 with what we have */
+ pde5 = (struct lpfc_pde5 *) bpl;
+ memset(pde5, 0, sizeof(struct lpfc_pde5));
+ bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR);
+ pde5->reftag = reftag;
+ /* advance bpl and increment bde count */
+ num_bde++;
+ bpl++;
+ pde6 = (struct lpfc_pde6 *) bpl;
+
+ /* setup PDE6 with the rest of the info */
+ memset(pde6, 0, sizeof(struct lpfc_pde6));
+ bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR);
+ bf_set(pde6_optx, pde6, txop);
+ bf_set(pde6_oprx, pde6, rxop);
+ if (datadir == DMA_FROM_DEVICE) {
+ bf_set(pde6_ce, pde6, 1);
+ bf_set(pde6_re, pde6, 1);
+ bf_set(pde6_ae, pde6, 1);
+ }
+ bf_set(pde6_ai, pde6, 1);
+ bf_set(pde6_apptagval, pde6, apptagval);
+
+ /* advance bpl and increment bde count */
num_bde++;
bpl++;
* The buffer list for this type consists of one or more of the
* protection groups described below:
* +-------------------------+
- * start of first prot group --> | PDE_1 |
+ * start of first prot group --> | PDE_5 |
+ * +-------------------------+
+ * | PDE_6 |
* +-------------------------+
- * | PDE_3 (Prot BDE) |
+ * | PDE_7 (Prot BDE) |
* +-------------------------+
* | Data BDE |
* +-------------------------+
* |more Data BDE's ... (opt)|
* +-------------------------+
- * start of new prot group --> | PDE_1 |
+ * start of new prot group --> | PDE_5 |
* +-------------------------+
* | ... |
* +-------------------------+
{
struct scatterlist *sgde = NULL; /* s/g data entry */
struct scatterlist *sgpe = NULL; /* s/g prot entry */
- struct lpfc_pde *pde1 = NULL;
+ struct lpfc_pde5 *pde5 = NULL;
+ struct lpfc_pde6 *pde6 = NULL;
struct ulp_bde64 *prot_bde = NULL;
dma_addr_t dataphysaddr, protphysaddr;
unsigned short curr_data = 0, curr_prot = 0;
unsigned int split_offset, protgroup_len;
unsigned int protgrp_blks, protgrp_bytes;
unsigned int remainder, subtotal;
- int prof = LPFC_PROF_INVALID;
+ int status;
int datadir = sc->sc_data_direction;
unsigned char pgdone = 0, alldone = 0;
unsigned blksize;
uint32_t reftag;
uint16_t apptagmask, apptagval;
+ uint8_t txop, rxop;
int num_bde = 0;
sgpe = scsi_prot_sglist(sc);
return 0;
}
- prof = lpfc_sc_to_sli_prof(phba, sc);
- if (prof == LPFC_PROF_INVALID)
+ status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
+ if (status)
goto out;
- /* extract some info from the scsi command for PDE1*/
+ /* extract some info from the scsi command */
blksize = lpfc_cmd_blksize(sc);
lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag);
split_offset = 0;
do {
- /* setup the first PDE_1 */
- pde1 = (struct lpfc_pde *) bpl;
-
- lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize,
- BG_EC_STOP_ERR);
- lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag);
+ /* setup PDE5 with what we have */
+ pde5 = (struct lpfc_pde5 *) bpl;
+ memset(pde5, 0, sizeof(struct lpfc_pde5));
+ bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR);
+ pde5->reftag = reftag;
+ /* advance bpl and increment bde count */
+ num_bde++;
+ bpl++;
+ pde6 = (struct lpfc_pde6 *) bpl;
+
+ /* setup PDE6 with the rest of the info */
+ memset(pde6, 0, sizeof(struct lpfc_pde6));
+ bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR);
+ bf_set(pde6_optx, pde6, txop);
+ bf_set(pde6_oprx, pde6, rxop);
+ bf_set(pde6_ce, pde6, 1);
+ bf_set(pde6_re, pde6, 1);
+ bf_set(pde6_ae, pde6, 1);
+ bf_set(pde6_ai, pde6, 1);
+ bf_set(pde6_apptagval, pde6, apptagval);
+
+ /* advance bpl and increment bde count */
num_bde++;
bpl++;
/* setup the first BDE that points to protection buffer */
prot_bde = (struct ulp_bde64 *) bpl;
protphysaddr = sg_dma_address(sgpe);
- prot_bde->addrLow = le32_to_cpu(putPaddrLow(protphysaddr));
- prot_bde->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr));
+ prot_bde->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr));
+ prot_bde->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr));
protgroup_len = sg_dma_len(sgpe);
protgrp_bytes = protgrp_blks * blksize;
prot_bde->tus.f.bdeSize = protgroup_len;
- if (datadir == DMA_TO_DEVICE)
- prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
- else
- prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
+ prot_bde->tus.f.bdeFlags = LPFC_PDE7_DESCRIPTOR;
prot_bde->tus.w = le32_to_cpu(bpl->tus.w);
curr_prot++;
/* Move to the next s/g segment if possible */
sgde = sg_next(sgde);
+
}
/* are we done ? */
out:
-
return num_bde;
}
/*
* field of @lpfc_cmd for device with SLI-4 interface spec.
*
* Return codes:
- * 1 - Error
- * 0 - Success
+ * 1 - Error
+ * 0 - Success
**/
static int
lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
* lpfc_hba struct.
*
* Return codes:
- * 1 - Error
- * 0 - Success
+ * 1 - Error
+ * 0 - Success
**/
static inline int
lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
git.openpandora.org / pandora-kernel.git / blobdiff