[SCSI] lpfc 8.3.0 : Add BlockGuard support (T10-DIF) structs and defs
Update struct definitions, #defines, sysfs entries, and initialization
to support BlockGuard.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 74a4b30..4168c7b 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1544,6 +1544,108 @@
uint32_t ulpIoTag32; /* Can be used for 32 bit I/O Tag */
} ULP_BDL;
+/*
+ * BlockGuard Definitions
+ */
+
+enum lpfc_protgrp_type {
+ LPFC_PG_TYPE_INVALID = 0, /* used to indicate errors */
+ LPFC_PG_TYPE_NO_DIF, /* no DIF data pointed to by prot grp */
+ LPFC_PG_TYPE_EMBD_DIF, /* DIF is embedded (inline) with data */
+ LPFC_PG_TYPE_DIF_BUF /* DIF has its own scatter/gather list */
+};
+
+/* 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
+};
+
+/* 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 */
+};
+
+/* 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 */
typedef struct {
@@ -2595,8 +2697,9 @@
#endif
#ifdef __BIG_ENDIAN_BITFIELD
- uint32_t rsvd1 : 24; /* Reserved */
- uint32_t cmv : 1; /* Configure Max VPIs */
+ uint32_t rsvd1 : 23; /* Reserved */
+ uint32_t cbg : 1; /* Configure BlockGuard */
+ uint32_t cmv : 1; /* Configure Max VPIs */
uint32_t ccrp : 1; /* Config Command Ring Polling */
uint32_t csah : 1; /* Configure Synchronous Abort Handling */
uint32_t chbs : 1; /* Cofigure Host Backing store */
@@ -2613,10 +2716,12 @@
uint32_t csah : 1; /* Configure Synchronous Abort Handling */
uint32_t ccrp : 1; /* Config Command Ring Polling */
uint32_t cmv : 1; /* Configure Max VPIs */
- uint32_t rsvd1 : 24; /* Reserved */
+ uint32_t cbg : 1; /* Configure BlockGuard */
+ uint32_t rsvd1 : 23; /* Reserved */
#endif
#ifdef __BIG_ENDIAN_BITFIELD
- uint32_t rsvd2 : 24; /* Reserved */
+ uint32_t rsvd2 : 23; /* Reserved */
+ uint32_t gbg : 1; /* Grant BlockGuard */
uint32_t gmv : 1; /* Grant Max VPIs */
uint32_t gcrp : 1; /* Grant Command Ring Polling */
uint32_t gsah : 1; /* Grant Synchronous Abort Handling */
@@ -2634,7 +2739,8 @@
uint32_t gsah : 1; /* Grant Synchronous Abort Handling */
uint32_t gcrp : 1; /* Grant Command Ring Polling */
uint32_t gmv : 1; /* Grant Max VPIs */
- uint32_t rsvd2 : 24; /* Reserved */
+ uint32_t gbg : 1; /* Grant BlockGuard */
+ uint32_t rsvd2 : 23; /* Reserved */
#endif
#ifdef __BIG_ENDIAN_BITFIELD
@@ -3254,6 +3360,94 @@
struct lpfc_hbq_entry buff[5];
};
+struct sli3_bg_fields {
+ uint32_t filler[6]; /* word 8-13 in IOCB */
+ uint32_t bghm; /* word 14 - BlockGuard High Water Mark */
+/* Bitfields for bgstat (BlockGuard Status - word 15 of IOCB) */
+#define BGS_BIDIR_BG_PROF_MASK 0xff000000
+#define BGS_BIDIR_BG_PROF_SHIFT 24
+#define BGS_BIDIR_ERR_COND_FLAGS_MASK 0x003f0000
+#define BGS_BIDIR_ERR_COND_SHIFT 16
+#define BGS_BG_PROFILE_MASK 0x0000ff00
+#define BGS_BG_PROFILE_SHIFT 8
+#define BGS_INVALID_PROF_MASK 0x00000020
+#define BGS_INVALID_PROF_SHIFT 5
+#define BGS_UNINIT_DIF_BLOCK_MASK 0x00000010
+#define BGS_UNINIT_DIF_BLOCK_SHIFT 4
+#define BGS_HI_WATER_MARK_PRESENT_MASK 0x00000008
+#define BGS_HI_WATER_MARK_PRESENT_SHIFT 3
+#define BGS_REFTAG_ERR_MASK 0x00000004
+#define BGS_REFTAG_ERR_SHIFT 2
+#define BGS_APPTAG_ERR_MASK 0x00000002
+#define BGS_APPTAG_ERR_SHIFT 1
+#define BGS_GUARD_ERR_MASK 0x00000001
+#define BGS_GUARD_ERR_SHIFT 0
+ uint32_t bgstat; /* word 15 - BlockGuard Status */
+};
+
+static inline uint32_t
+lpfc_bgs_get_bidir_bg_prof(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_BIDIR_BG_PROF_MASK) >>
+ BGS_BIDIR_BG_PROF_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_bidir_err_cond(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_BIDIR_ERR_COND_FLAGS_MASK) >>
+ BGS_BIDIR_ERR_COND_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_bg_prof(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_BG_PROFILE_MASK) >>
+ BGS_BG_PROFILE_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_invalid_prof(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_INVALID_PROF_MASK) >>
+ BGS_INVALID_PROF_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_uninit_dif_block(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_UNINIT_DIF_BLOCK_MASK) >>
+ BGS_UNINIT_DIF_BLOCK_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_hi_water_mark_present(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_HI_WATER_MARK_PRESENT_MASK) >>
+ BGS_HI_WATER_MARK_PRESENT_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_reftag_err(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_REFTAG_ERR_MASK) >>
+ BGS_REFTAG_ERR_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_apptag_err(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_APPTAG_ERR_MASK) >>
+ BGS_APPTAG_ERR_SHIFT;
+}
+
+static inline uint32_t
+lpfc_bgs_get_guard_err(uint32_t bgstat)
+{
+ return (le32_to_cpu(bgstat) & BGS_GUARD_ERR_MASK) >>
+ BGS_GUARD_ERR_SHIFT;
+}
+
#define LPFC_EXT_DATA_BDE_COUNT 3
struct fcp_irw_ext {
uint32_t io_tag64_low;
@@ -3362,6 +3556,9 @@
struct que_xri64cx_ext_fields que_xri64cx_ext_words;
struct fcp_irw_ext fcp_ext;
uint32_t sli3Words[24]; /* 96 extra bytes for SLI-3 */
+
+ /* words 8-15 for BlockGuard */
+ struct sli3_bg_fields sli3_bg;
} unsli3;
#define ulpCt_h ulpXS