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Commit 6c8eea54 authored by James Smart's avatar James Smart Committed by James Bottomley
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[SCSI] lpfc 8.3.12: T10-PI/DIF changes 

Update driver for change in T10-PI interface on adapter
- Remove Profiles.
- Add new SLI Opcodes.
- Add new PDE structures used for BlockGuard.
Signed-off-by: default avatarAlex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 15672319
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Showing with 177 additions and 139 deletions
drivers/scsi/lpfc/lpfc_hw.h
View file @ 6c8eea54
......@@ -1500,7 +1500,6 @@ typedef struct { /* FireFly BIU registers */
#define MBXERR_BAD_RCV_LENGTH 14
#define MBXERR_DMA_ERROR 15
#define MBXERR_ERROR 16
#define MBXERR_UNKNOWN_CMD 18
#define MBXERR_LINK_DOWN 0x33
#define MBX_NOT_FINISHED 255
......@@ -1566,95 +1565,83 @@ enum lpfc_protgrp_type {
};
/* PDE Descriptors */
#define LPFC_PDE1_DESCRIPTOR 0x81
#define LPFC_PDE2_DESCRIPTOR 0x82
#define LPFC_PDE3_DESCRIPTOR 0x83
/* BlockGuard Profiles */
enum lpfc_bg_prof_codes {
LPFC_PROF_INVALID,
LPFC_PROF_A1 = 128, /* Full Protection */
LPFC_PROF_A2, /* Disabled Protection Checks:A2~A4 */
LPFC_PROF_A3,
LPFC_PROF_A4,
LPFC_PROF_B1, /* Embedded DIFs: B1~B3 */
LPFC_PROF_B2,
LPFC_PROF_B3,
LPFC_PROF_C1, /* Separate DIFs: C1~C3 */
LPFC_PROF_C2,
LPFC_PROF_C3,
LPFC_PROF_D1, /* Full Protection */
LPFC_PROF_D2, /* Partial Protection & Check Disabling */
LPFC_PROF_D3,
LPFC_PROF_E1, /* E1~E4:out - check-only, in - update apptag */
LPFC_PROF_E2,
LPFC_PROF_E3,
LPFC_PROF_E4,
LPFC_PROF_F1, /* Full Translation - F1 Prot Descriptor */
/* F1 Translation BDE */
LPFC_PROF_ANT1, /* TCP checksum, DIF inline with data buffers */
LPFC_PROF_AST1, /* TCP checksum, DIF split from data buffer */
LPFC_PROF_ANT2,
LPFC_PROF_AST2
#define LPFC_PDE5_DESCRIPTOR 0x85
#define LPFC_PDE6_DESCRIPTOR 0x86
#define LPFC_PDE7_DESCRIPTOR 0x87
/* BlockGuard Opcodes */
#define BG_OP_IN_NODIF_OUT_CRC 0x0
#define BG_OP_IN_CRC_OUT_NODIF 0x1
#define BG_OP_IN_NODIF_OUT_CSUM 0x2
#define BG_OP_IN_CSUM_OUT_NODIF 0x3
#define BG_OP_IN_CRC_OUT_CRC 0x4
#define BG_OP_IN_CSUM_OUT_CSUM 0x5
#define BG_OP_IN_CRC_OUT_CSUM 0x6
#define BG_OP_IN_CSUM_OUT_CRC 0x7
struct lpfc_pde5 {
uint32_t word0;
#define pde5_type_SHIFT 24
#define pde5_type_MASK 0x000000ff
#define pde5_type_WORD word0
#define pde5_rsvd0_SHIFT 0
#define pde5_rsvd0_MASK 0x00ffffff
#define pde5_rsvd0_WORD word0
uint32_t reftag; /* Reference Tag Value */
uint32_t reftagtr; /* Reference Tag Translation Value */
};
/* BlockGuard error-control defines */
#define BG_EC_STOP_ERR 0x00
#define BG_EC_CONT_ERR 0x01
#define BG_EC_IGN_UNINIT_STOP_ERR 0x10
#define BG_EC_IGN_UNINIT_CONT_ERR 0x11
/* PDE (Protection Descriptor Entry) word 0 bit masks and shifts */
#define PDE_DESC_TYPE_MASK 0xff000000
#define PDE_DESC_TYPE_SHIFT 24
#define PDE_BG_PROFILE_MASK 0x00ff0000
#define PDE_BG_PROFILE_SHIFT 16
#define PDE_BLOCK_LEN_MASK 0x0000fffc
#define PDE_BLOCK_LEN_SHIFT 2
#define PDE_ERR_CTRL_MASK 0x00000003
#define PDE_ERR_CTRL_SHIFT 0
/* PDE word 1 bit masks and shifts */
#define PDE_APPTAG_MASK_MASK 0xffff0000
#define PDE_APPTAG_MASK_SHIFT 16
#define PDE_APPTAG_VAL_MASK 0x0000ffff
#define PDE_APPTAG_VAL_SHIFT 0
struct lpfc_pde {
uint32_t parms; /* bitfields of descriptor, prof, len, and ec */
uint32_t apptag; /* bitfields of app tag maskand app tag value */
uint32_t reftag; /* reference tag occupying all 32 bits */
struct lpfc_pde6 {
uint32_t word0;
#define pde6_type_SHIFT 24
#define pde6_type_MASK 0x000000ff
#define pde6_type_WORD word0
#define pde6_rsvd0_SHIFT 0
#define pde6_rsvd0_MASK 0x00ffffff
#define pde6_rsvd0_WORD word0
uint32_t word1;
#define pde6_rsvd1_SHIFT 26
#define pde6_rsvd1_MASK 0x0000003f
#define pde6_rsvd1_WORD word1
#define pde6_na_SHIFT 25
#define pde6_na_MASK 0x00000001
#define pde6_na_WORD word1
#define pde6_rsvd2_SHIFT 16
#define pde6_rsvd2_MASK 0x000001FF
#define pde6_rsvd2_WORD word1
#define pde6_apptagtr_SHIFT 0
#define pde6_apptagtr_MASK 0x0000ffff
#define pde6_apptagtr_WORD word1
uint32_t word2;
#define pde6_optx_SHIFT 28
#define pde6_optx_MASK 0x0000000f
#define pde6_optx_WORD word2
#define pde6_oprx_SHIFT 24
#define pde6_oprx_MASK 0x0000000f
#define pde6_oprx_WORD word2
#define pde6_nr_SHIFT 23
#define pde6_nr_MASK 0x00000001
#define pde6_nr_WORD word2
#define pde6_ce_SHIFT 22
#define pde6_ce_MASK 0x00000001
#define pde6_ce_WORD word2
#define pde6_re_SHIFT 21
#define pde6_re_MASK 0x00000001
#define pde6_re_WORD word2
#define pde6_ae_SHIFT 20
#define pde6_ae_MASK 0x00000001
#define pde6_ae_WORD word2
#define pde6_ai_SHIFT 19
#define pde6_ai_MASK 0x00000001
#define pde6_ai_WORD word2
#define pde6_bs_SHIFT 16
#define pde6_bs_MASK 0x00000007
#define pde6_bs_WORD word2
#define pde6_apptagval_SHIFT 0
#define pde6_apptagval_MASK 0x0000ffff
#define pde6_apptagval_WORD word2
};
/* inline function to set fields in parms of PDE */
static inline void
lpfc_pde_set_bg_parms(struct lpfc_pde *p, u8 desc, u8 prof, u16 len, u8 ec)
{
uint32_t *wp = &p->parms;
/* spec indicates that adapter appends two 0's to length field */
len = len >> 2;
*wp &= 0;
*wp |= ((desc << PDE_DESC_TYPE_SHIFT) & PDE_DESC_TYPE_MASK);
*wp |= ((prof << PDE_BG_PROFILE_SHIFT) & PDE_BG_PROFILE_MASK);
*wp |= ((len << PDE_BLOCK_LEN_SHIFT) & PDE_BLOCK_LEN_MASK);
*wp |= ((ec << PDE_ERR_CTRL_SHIFT) & PDE_ERR_CTRL_MASK);
*wp = le32_to_cpu(*wp);
}
/* inline function to set apptag and reftag fields of PDE */
static inline void
lpfc_pde_set_dif_parms(struct lpfc_pde *p, u16 apptagmask, u16 apptagval,
u32 reftag)
{
uint32_t *wp = &p->apptag;
*wp &= 0;
*wp |= ((apptagmask << PDE_APPTAG_MASK_SHIFT) & PDE_APPTAG_MASK_MASK);
*wp |= ((apptagval << PDE_APPTAG_VAL_SHIFT) & PDE_APPTAG_VAL_MASK);
*wp = le32_to_cpu(*wp);
wp = &p->reftag;
*wp = le32_to_cpu(reftag);
}
/* Structure for MB Command LOAD_SM and DOWN_LOAD */
......
drivers/scsi/lpfc/lpfc_scsi.c
View file @ 6c8eea54
......@@ -1141,37 +1141,47 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
}
/*
* 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;
}
......@@ -1179,12 +1189,14 @@ lpfc_sc_to_sli_prof(struct lpfc_hba *phba, struct scsi_cmnd *sc)
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:
......@@ -1194,6 +1206,7 @@ lpfc_sc_to_sli_prof(struct lpfc_hba *phba, struct scsi_cmnd *sc)
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 {
......@@ -1201,7 +1214,7 @@ lpfc_sc_to_sli_prof(struct lpfc_hba *phba, struct scsi_cmnd *sc)
BUG();
}
return ret_prof;
return ret;
}
struct scsi_dif_tuple {
......@@ -1266,7 +1279,9 @@ lpfc_get_cmd_dif_parms(struct scsi_cmnd *sc, uint16_t *apptagmask,
* 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 |
* +-------------------------+
......@@ -1284,30 +1299,49 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
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++;
......@@ -1342,15 +1376,17 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
* 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_3 (Prot BDE) |
* | PDE_6 |
* +-------------------------+
* | 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 |
* +-------------------------+
* | ... |
* +-------------------------+
......@@ -1369,19 +1405,21 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
{
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);
......@@ -1394,31 +1432,47 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *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);
......@@ -1429,10 +1483,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
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++;
......@@ -1484,6 +1535,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
/* Move to the next s/g segment if possible */
sgde = sg_next(sgde);
}
/* are we done ? */
......@@ -1506,7 +1558,6 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
out:
return num_bde;
}
/*
......
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