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[SCSI] lpfc 8.3.27: T10 additions for SLI4

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Added T10 DIFF error injection code.
Added T10 DIFF structure definitions for SLI4 devices.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart 2011-10-10 21:34:11 -04:00 committed by James Bottomley
parent 5350d872c1
commit f9bb2da11d
5 changed files with 471 additions and 19 deletions
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20
drivers/scsi/lpfc/lpfc.h
View File

@ -846,8 +846,24 @@ struct lpfc_hba {
struct dentry *debug_hbqinfo; struct dentry *debug_hbqinfo;
struct dentry *debug_dumpHostSlim; struct dentry *debug_dumpHostSlim;
struct dentry *debug_dumpHBASlim; struct dentry *debug_dumpHBASlim;
struct dentry *debug_dumpData; /* BlockGuard BPL*/ struct dentry *debug_dumpData; /* BlockGuard BPL */
struct dentry *debug_dumpDif; /* BlockGuard BPL*/ struct dentry *debug_dumpDif; /* BlockGuard BPL */
struct dentry *debug_InjErrLBA; /* LBA to inject errors at */
struct dentry *debug_writeGuard; /* inject write guard_tag errors */
struct dentry *debug_writeApp; /* inject write app_tag errors */
struct dentry *debug_writeRef; /* inject write ref_tag errors */
struct dentry *debug_readApp; /* inject read app_tag errors */
struct dentry *debug_readRef; /* inject read ref_tag errors */
/* T10 DIF error injection */
uint32_t lpfc_injerr_wgrd_cnt;
uint32_t lpfc_injerr_wapp_cnt;
uint32_t lpfc_injerr_wref_cnt;
uint32_t lpfc_injerr_rapp_cnt;
uint32_t lpfc_injerr_rref_cnt;
sector_t lpfc_injerr_lba;
#define LPFC_INJERR_LBA_OFF (sector_t)0xffffffffffffffff
struct dentry *debug_slow_ring_trc; struct dentry *debug_slow_ring_trc;
struct lpfc_debugfs_trc *slow_ring_trc; struct lpfc_debugfs_trc *slow_ring_trc;
atomic_t slow_ring_trc_cnt; atomic_t slow_ring_trc_cnt;

181
drivers/scsi/lpfc/lpfc_debugfs.c
View File

@ -996,6 +996,85 @@ lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
return nbytes; return nbytes;
} }
static int
lpfc_debugfs_dif_err_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t
lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct dentry *dent = file->f_dentry;
struct lpfc_hba *phba = file->private_data;
char cbuf[16];
int cnt = 0;
if (dent == phba->debug_writeGuard)
cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wgrd_cnt);
else if (dent == phba->debug_writeApp)
cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wapp_cnt);
else if (dent == phba->debug_writeRef)
cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wref_cnt);
else if (dent == phba->debug_readApp)
cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rapp_cnt);
else if (dent == phba->debug_readRef)
cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rref_cnt);
else if (dent == phba->debug_InjErrLBA)
cnt = snprintf(cbuf, 16, "0x%lx\n",
(unsigned long) phba->lpfc_injerr_lba);
else
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0547 Unknown debugfs error injection entry\n");
return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
}
static ssize_t
lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct dentry *dent = file->f_dentry;
struct lpfc_hba *phba = file->private_data;
char dstbuf[32];
unsigned long tmp;
int size;
memset(dstbuf, 0, 32);
size = (nbytes < 32) ? nbytes : 32;
if (copy_from_user(dstbuf, buf, size))
return 0;
if (strict_strtoul(dstbuf, 0, &tmp))
return 0;
if (dent == phba->debug_writeGuard)
phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
else if (dent == phba->debug_writeApp)
phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
else if (dent == phba->debug_writeRef)
phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
else if (dent == phba->debug_readApp)
phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
else if (dent == phba->debug_readRef)
phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
else if (dent == phba->debug_InjErrLBA)
phba->lpfc_injerr_lba = (sector_t)tmp;
else
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0548 Unknown debugfs error injection entry\n");
return nbytes;
}
static int
lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
{
return 0;
}
/** /**
* lpfc_debugfs_nodelist_open - Open the nodelist debugfs file * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
* @inode: The inode pointer that contains a vport pointer. * @inode: The inode pointer that contains a vport pointer.
@ -3380,6 +3459,16 @@ static const struct file_operations lpfc_debugfs_op_dumpDif = {
.release = lpfc_debugfs_dumpDataDif_release, .release = lpfc_debugfs_dumpDataDif_release,
}; };
#undef lpfc_debugfs_op_dif_err
static const struct file_operations lpfc_debugfs_op_dif_err = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dif_err_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_dif_err_read,
.write = lpfc_debugfs_dif_err_write,
.release = lpfc_debugfs_dif_err_release,
};
#undef lpfc_debugfs_op_slow_ring_trc #undef lpfc_debugfs_op_slow_ring_trc
static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
@ -3788,6 +3877,74 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
goto debug_failed; goto debug_failed;
} }
/* Setup DIF Error Injections */
snprintf(name, sizeof(name), "InjErrLBA");
phba->debug_InjErrLBA =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_InjErrLBA) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0807 Cannot create debugfs InjErrLBA\n");
goto debug_failed;
}
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
snprintf(name, sizeof(name), "writeGuardInjErr");
phba->debug_writeGuard =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_writeGuard) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0802 Cannot create debugfs writeGuard\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "writeAppInjErr");
phba->debug_writeApp =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_writeApp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0803 Cannot create debugfs writeApp\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "writeRefInjErr");
phba->debug_writeRef =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_writeRef) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0804 Cannot create debugfs writeRef\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "readAppInjErr");
phba->debug_readApp =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_readApp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0805 Cannot create debugfs readApp\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "readRefInjErr");
phba->debug_readRef =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
if (!phba->debug_readRef) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0806 Cannot create debugfs readApp\n");
goto debug_failed;
}
/* Setup slow ring trace */ /* Setup slow ring trace */
if (lpfc_debugfs_max_slow_ring_trc) { if (lpfc_debugfs_max_slow_ring_trc) {
num = lpfc_debugfs_max_slow_ring_trc - 1; num = lpfc_debugfs_max_slow_ring_trc - 1;
@ -4090,6 +4247,30 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
debugfs_remove(phba->debug_dumpDif); /* dumpDif */ debugfs_remove(phba->debug_dumpDif); /* dumpDif */
phba->debug_dumpDif = NULL; phba->debug_dumpDif = NULL;
} }
if (phba->debug_InjErrLBA) {
debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
phba->debug_InjErrLBA = NULL;
}
if (phba->debug_writeGuard) {
debugfs_remove(phba->debug_writeGuard); /* writeGuard */
phba->debug_writeGuard = NULL;
}
if (phba->debug_writeApp) {
debugfs_remove(phba->debug_writeApp); /* writeApp */
phba->debug_writeApp = NULL;
}
if (phba->debug_writeRef) {
debugfs_remove(phba->debug_writeRef); /* writeRef */
phba->debug_writeRef = NULL;
}
if (phba->debug_readApp) {
debugfs_remove(phba->debug_readApp); /* readApp */
phba->debug_readApp = NULL;
}
if (phba->debug_readRef) {
debugfs_remove(phba->debug_readRef); /* readRef */
phba->debug_readRef = NULL;
}
if (phba->slow_ring_trc) { if (phba->slow_ring_trc) {
kfree(phba->slow_ring_trc); kfree(phba->slow_ring_trc);

88
drivers/scsi/lpfc/lpfc_hw4.h
View File

@ -1484,16 +1484,81 @@ struct sli4_sge { /* SLI-4 */
uint32_t addr_lo; uint32_t addr_lo;
uint32_t word2; uint32_t word2;
#define lpfc_sli4_sge_offset_SHIFT 0 /* Offset of buffer - Not used*/ #define lpfc_sli4_sge_offset_SHIFT 0
#define lpfc_sli4_sge_offset_MASK 0x1FFFFFFF #define lpfc_sli4_sge_offset_MASK 0x07FFFFFF
#define lpfc_sli4_sge_offset_WORD word2 #define lpfc_sli4_sge_offset_WORD word2
#define lpfc_sli4_sge_last_SHIFT 31 /* Last SEG in the SGL sets #define lpfc_sli4_sge_type_SHIFT 27
this flag !! */ #define lpfc_sli4_sge_type_MASK 0x0000000F
#define lpfc_sli4_sge_type_WORD word2
#define LPFC_SGE_TYPE_DATA 0x0
#define LPFC_SGE_TYPE_DIF 0x4
#define LPFC_SGE_TYPE_LSP 0x5
#define LPFC_SGE_TYPE_PEDIF 0x6
#define LPFC_SGE_TYPE_PESEED 0x7
#define LPFC_SGE_TYPE_DISEED 0x8
#define LPFC_SGE_TYPE_ENC 0x9
#define LPFC_SGE_TYPE_ATM 0xA
#define LPFC_SGE_TYPE_SKIP 0xC
#define lpfc_sli4_sge_last_SHIFT 31 /* Last SEG in the SGL sets it */
#define lpfc_sli4_sge_last_MASK 0x00000001 #define lpfc_sli4_sge_last_MASK 0x00000001
#define lpfc_sli4_sge_last_WORD word2 #define lpfc_sli4_sge_last_WORD word2
uint32_t sge_len; uint32_t sge_len;
}; };
struct sli4_sge_diseed { /* SLI-4 */
uint32_t ref_tag;
uint32_t ref_tag_tran;
uint32_t word2;
#define lpfc_sli4_sge_dif_apptran_SHIFT 0
#define lpfc_sli4_sge_dif_apptran_MASK 0x0000FFFF
#define lpfc_sli4_sge_dif_apptran_WORD word2
#define lpfc_sli4_sge_dif_af_SHIFT 24
#define lpfc_sli4_sge_dif_af_MASK 0x00000001
#define lpfc_sli4_sge_dif_af_WORD word2
#define lpfc_sli4_sge_dif_na_SHIFT 25
#define lpfc_sli4_sge_dif_na_MASK 0x00000001
#define lpfc_sli4_sge_dif_na_WORD word2
#define lpfc_sli4_sge_dif_hi_SHIFT 26
#define lpfc_sli4_sge_dif_hi_MASK 0x00000001
#define lpfc_sli4_sge_dif_hi_WORD word2
#define lpfc_sli4_sge_dif_type_SHIFT 27
#define lpfc_sli4_sge_dif_type_MASK 0x0000000F
#define lpfc_sli4_sge_dif_type_WORD word2
#define lpfc_sli4_sge_dif_last_SHIFT 31 /* Last SEG in the SGL sets it */
#define lpfc_sli4_sge_dif_last_MASK 0x00000001
#define lpfc_sli4_sge_dif_last_WORD word2
uint32_t word3;
#define lpfc_sli4_sge_dif_apptag_SHIFT 0
#define lpfc_sli4_sge_dif_apptag_MASK 0x0000FFFF
#define lpfc_sli4_sge_dif_apptag_WORD word3
#define lpfc_sli4_sge_dif_bs_SHIFT 16
#define lpfc_sli4_sge_dif_bs_MASK 0x00000007
#define lpfc_sli4_sge_dif_bs_WORD word3
#define lpfc_sli4_sge_dif_ai_SHIFT 19
#define lpfc_sli4_sge_dif_ai_MASK 0x00000001
#define lpfc_sli4_sge_dif_ai_WORD word3
#define lpfc_sli4_sge_dif_me_SHIFT 20
#define lpfc_sli4_sge_dif_me_MASK 0x00000001
#define lpfc_sli4_sge_dif_me_WORD word3
#define lpfc_sli4_sge_dif_re_SHIFT 21
#define lpfc_sli4_sge_dif_re_MASK 0x00000001
#define lpfc_sli4_sge_dif_re_WORD word3
#define lpfc_sli4_sge_dif_ce_SHIFT 22
#define lpfc_sli4_sge_dif_ce_MASK 0x00000001
#define lpfc_sli4_sge_dif_ce_WORD word3
#define lpfc_sli4_sge_dif_nr_SHIFT 23
#define lpfc_sli4_sge_dif_nr_MASK 0x00000001
#define lpfc_sli4_sge_dif_nr_WORD word3
#define lpfc_sli4_sge_dif_oprx_SHIFT 24
#define lpfc_sli4_sge_dif_oprx_MASK 0x0000000F
#define lpfc_sli4_sge_dif_oprx_WORD word3
#define lpfc_sli4_sge_dif_optx_SHIFT 28
#define lpfc_sli4_sge_dif_optx_MASK 0x0000000F
#define lpfc_sli4_sge_dif_optx_WORD word3
/* optx and oprx use BG_OP_IN defines in lpfc_hw.h */
};
struct fcf_record { struct fcf_record {
uint32_t max_rcv_size; uint32_t max_rcv_size;
uint32_t fka_adv_period; uint32_t fka_adv_period;
@ -3023,6 +3088,9 @@ struct wqe_common {
#define wqe_ctxt_tag_MASK 0x0000FFFF #define wqe_ctxt_tag_MASK 0x0000FFFF
#define wqe_ctxt_tag_WORD word6 #define wqe_ctxt_tag_WORD word6
uint32_t word7; uint32_t word7;
#define wqe_dif_SHIFT 0
#define wqe_dif_MASK 0x00000003
#define wqe_dif_WORD word7
#define wqe_ct_SHIFT 2 #define wqe_ct_SHIFT 2
#define wqe_ct_MASK 0x00000003 #define wqe_ct_MASK 0x00000003
#define wqe_ct_WORD word7 #define wqe_ct_WORD word7
@ -3035,12 +3103,21 @@ struct wqe_common {
#define wqe_class_SHIFT 16 #define wqe_class_SHIFT 16
#define wqe_class_MASK 0x00000007 #define wqe_class_MASK 0x00000007
#define wqe_class_WORD word7 #define wqe_class_WORD word7
#define wqe_ar_SHIFT 19
#define wqe_ar_MASK 0x00000001
#define wqe_ar_WORD word7
#define wqe_ag_SHIFT wqe_ar_SHIFT
#define wqe_ag_MASK wqe_ar_MASK
#define wqe_ag_WORD wqe_ar_WORD
#define wqe_pu_SHIFT 20 #define wqe_pu_SHIFT 20
#define wqe_pu_MASK 0x00000003 #define wqe_pu_MASK 0x00000003
#define wqe_pu_WORD word7 #define wqe_pu_WORD word7
#define wqe_erp_SHIFT 22 #define wqe_erp_SHIFT 22
#define wqe_erp_MASK 0x00000001 #define wqe_erp_MASK 0x00000001
#define wqe_erp_WORD word7 #define wqe_erp_WORD word7
#define wqe_conf_SHIFT wqe_erp_SHIFT
#define wqe_conf_MASK wqe_erp_MASK
#define wqe_conf_WORD wqe_erp_WORD
#define wqe_lnk_SHIFT 23 #define wqe_lnk_SHIFT 23
#define wqe_lnk_MASK 0x00000001 #define wqe_lnk_MASK 0x00000001
#define wqe_lnk_WORD word7 #define wqe_lnk_WORD word7
@ -3099,6 +3176,9 @@ struct wqe_common {
#define wqe_xc_SHIFT 21 #define wqe_xc_SHIFT 21
#define wqe_xc_MASK 0x00000001 #define wqe_xc_MASK 0x00000001
#define wqe_xc_WORD word10 #define wqe_xc_WORD word10
#define wqe_sr_SHIFT 22
#define wqe_sr_MASK 0x00000001
#define wqe_sr_WORD word10
#define wqe_ccpe_SHIFT 23 #define wqe_ccpe_SHIFT 23
#define wqe_ccpe_MASK 0x00000001 #define wqe_ccpe_MASK 0x00000001
#define wqe_ccpe_WORD word10 #define wqe_ccpe_WORD word10

199
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -58,6 +58,13 @@ static char *dif_op_str[] = {
"SCSI_PROT_READ_PASS", "SCSI_PROT_READ_PASS",
"SCSI_PROT_WRITE_PASS", "SCSI_PROT_WRITE_PASS",
}; };
struct scsi_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
static void static void
lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb);
static void static void
@ -1263,6 +1270,174 @@ lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
return 0; return 0;
} }
static inline unsigned
lpfc_cmd_blksize(struct scsi_cmnd *sc)
{
return sc->device->sector_size;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/*
* Given a scsi cmnd, determine the BlockGuard tags to be used with it
* @sc: The SCSI command to examine
* @reftag: (out) BlockGuard reference tag for transmitted data
* @apptag: (out) BlockGuard application tag for transmitted data
* @new_guard (in) Value to replace CRC with if needed
*
* Returns (1) if error injection was performed, (0) otherwise
*/
static int
lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint32_t *reftag, uint16_t *apptag, uint32_t new_guard)
{
struct scatterlist *sgpe; /* s/g prot entry */
struct scatterlist *sgde; /* s/g data entry */
struct scsi_dif_tuple *src;
uint32_t op = scsi_get_prot_op(sc);
uint32_t blksize;
uint32_t numblks;
sector_t lba;
int rc = 0;
if (op == SCSI_PROT_NORMAL)
return 0;
lba = scsi_get_lba(sc);
if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) {
blksize = lpfc_cmd_blksize(sc);
numblks = (scsi_bufflen(sc) + blksize - 1) / blksize;
/* Make sure we have the right LBA if one is specified */
if ((phba->lpfc_injerr_lba < lba) ||
(phba->lpfc_injerr_lba >= (lba + numblks)))
return 0;
}
sgpe = scsi_prot_sglist(sc);
sgde = scsi_sglist(sc);
/* Should we change the Reference Tag */
if (reftag) {
/*
* If we are SCSI_PROT_WRITE_STRIP, the protection data is
* being stripped from the wire, thus it doesn't matter.
*/
if ((op == SCSI_PROT_WRITE_PASS) ||
(op == SCSI_PROT_WRITE_INSERT)) {
if (phba->lpfc_injerr_wref_cnt) {
/* DEADBEEF will be the reftag on the wire */
*reftag = 0xDEADBEEF;
phba->lpfc_injerr_wref_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9081 BLKGRD: Injecting reftag error: "
"write lba x%lx\n", (unsigned long)lba);
}
} else {
if (phba->lpfc_injerr_rref_cnt) {
*reftag = 0xDEADBEEF;
phba->lpfc_injerr_rref_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9076 BLKGRD: Injecting reftag error: "
"read lba x%lx\n", (unsigned long)lba);
}
}
}
/* Should we change the Application Tag */
if (apptag) {
/*
* If we are SCSI_PROT_WRITE_STRIP, the protection data is
* being stripped from the wire, thus it doesn't matter.
*/
if ((op == SCSI_PROT_WRITE_PASS) ||
(op == SCSI_PROT_WRITE_INSERT)) {
if (phba->lpfc_injerr_wapp_cnt) {
/* DEAD will be the apptag on the wire */
*apptag = 0xDEAD;
phba->lpfc_injerr_wapp_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9077 BLKGRD: Injecting apptag error: "
"write lba x%lx\n", (unsigned long)lba);
}
} else {
if (phba->lpfc_injerr_rapp_cnt) {
*apptag = 0xDEAD;
phba->lpfc_injerr_rapp_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9078 BLKGRD: Injecting apptag error: "
"read lba x%lx\n", (unsigned long)lba);
}
}
}
/* Should we change the Guard Tag */
/*
* If we are SCSI_PROT_WRITE_INSERT, the protection data is
* being on the wire is being fully generated on the HBA.
* The host cannot change it or force an error.
*/
if (((op == SCSI_PROT_WRITE_STRIP) ||
(op == SCSI_PROT_WRITE_PASS)) &&
phba->lpfc_injerr_wgrd_cnt) {
if (sgpe) {
src = (struct scsi_dif_tuple *)sg_virt(sgpe);
/*
* Just inject an error in the first
* prot block.
*/
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9079 BLKGRD: Injecting guard error: "
"write lba x%lx oldGuard x%x refTag x%x\n",
(unsigned long)lba, src->guard_tag,
src->ref_tag);
src->guard_tag = (uint16_t)new_guard;
phba->lpfc_injerr_wgrd_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
} else {
blksize = lpfc_cmd_blksize(sc);
/*
* Jump past the first data block
* and inject an error in the
* prot data. The prot data is already
* embedded after the regular data.
*/
src = (struct scsi_dif_tuple *)
(sg_virt(sgde) + blksize);
lpfc_printf_log(phba, KERN_ERR, LOG_BG,
"9080 BLKGRD: Injecting guard error: "
"write lba x%lx oldGuard x%x refTag x%x\n",
(unsigned long)lba, src->guard_tag,
src->ref_tag);
src->guard_tag = (uint16_t)new_guard;
phba->lpfc_injerr_wgrd_cnt--;
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
rc = 1;
}
}
return rc;
}
#endif
/* /*
* Given a scsi cmnd, determine the BlockGuard opcodes to be used with it * Given a scsi cmnd, determine the BlockGuard opcodes to be used with it
* @sc: The SCSI command to examine * @sc: The SCSI command to examine
@ -1341,18 +1516,6 @@ lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc,
return ret; return ret;
} }
struct scsi_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
static inline unsigned
lpfc_cmd_blksize(struct scsi_cmnd *sc)
{
return sc->device->sector_size;
}
/* /*
* This function sets up buffer list for protection groups of * This function sets up buffer list for protection groups of
* type LPFC_PG_TYPE_NO_DIF * type LPFC_PG_TYPE_NO_DIF
@ -1401,6 +1564,11 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
blksize = lpfc_cmd_blksize(sc); blksize = lpfc_cmd_blksize(sc);
reftag = scsi_get_lba(sc) & 0xffffffff; reftag = scsi_get_lba(sc) & 0xffffffff;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/* reftag is the only error we can inject here */
lpfc_bg_err_inject(phba, sc, &reftag, 0, 0);
#endif
/* setup PDE5 with what we have */ /* setup PDE5 with what we have */
pde5 = (struct lpfc_pde5 *) bpl; pde5 = (struct lpfc_pde5 *) bpl;
memset(pde5, 0, sizeof(struct lpfc_pde5)); memset(pde5, 0, sizeof(struct lpfc_pde5));
@ -1532,6 +1700,11 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
blksize = lpfc_cmd_blksize(sc); blksize = lpfc_cmd_blksize(sc);
reftag = scsi_get_lba(sc) & 0xffffffff; reftag = scsi_get_lba(sc) & 0xffffffff;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/* reftag / guard tag are the only errors we can inject here */
lpfc_bg_err_inject(phba, sc, &reftag, 0, 0xDEAD);
#endif
split_offset = 0; split_offset = 0;
do { do {
/* setup PDE5 with what we have */ /* setup PDE5 with what we have */
@ -1671,7 +1844,6 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
} }
} while (!alldone); } while (!alldone);
out: out:
return num_bde; return num_bde;
@ -2075,6 +2247,7 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
else else
bf_set(lpfc_sli4_sge_last, sgl, 0); bf_set(lpfc_sli4_sge_last, sgl, 0);
bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
sgl->word2 = cpu_to_le32(sgl->word2); sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(dma_len); sgl->sge_len = cpu_to_le32(dma_len);
dma_offset += dma_len; dma_offset += dma_len;

2
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -7538,6 +7538,8 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
if (inbound == 1) if (inbound == 1)
offset = 0; offset = 0;
bf_set(lpfc_sli4_sge_offset, sgl, offset); bf_set(lpfc_sli4_sge_offset, sgl, offset);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
offset += bde.tus.f.bdeSize; offset += bde.tus.f.bdeSize;
} }
sgl->word2 = cpu_to_le32(sgl->word2); sgl->word2 = cpu_to_le32(sgl->word2);