From: Rahul Bhansali <rbhansali@marvell.com>
Add SA context invalidate support for cn20k.
Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>
---
drivers/common/cnxk/hw/cpt.h | 11 ++++++++-
drivers/common/cnxk/roc_nix.h | 1 +
drivers/common/cnxk/roc_nix_inl.c | 37 ++++++++++++++++++++++++++++++-
3 files changed, 47 insertions(+), 2 deletions(-)
@@ -44,7 +44,8 @@
#define CPT_LF_CTX_ENC_PKT_CNT (0x540ull)
#define CPT_LF_CTX_DEC_BYTE_CNT (0x550ull)
#define CPT_LF_CTX_DEC_PKT_CNT (0x560ull)
-#define CPT_LF_CTX_RELOAD (0x570ull)
+#define CPT_LF_CTX_RELOAD (0x570ull) /* [CN10k] */
+#define CPT_LF_CTX_INVAL (0x570ull) /* [CN20k] */
#define CPT_AF_LFX_CTL(a) (0x27000ull | (uint64_t)(a) << 3)
#define CPT_AF_LFX_CTL2(a) (0x29000ull | (uint64_t)(a) << 3)
@@ -126,6 +127,14 @@ union cpt_lf_ctx_reload {
} s;
};
+union cpt_lf_ctx_inval {
+ uint64_t u;
+ struct {
+ uint64_t cptr : 46;
+ uint64_t reserved_46_63 : 18;
+ } s;
+};
+
union cpt_lf_inprog {
uint64_t u;
struct cpt_lf_inprog_s {
@@ -474,6 +474,7 @@ struct roc_nix {
bool custom_meta_aura_ena;
bool rx_inj_ena;
bool custom_inb_sa;
+ bool use_write_sa;
uint32_t root_sched_weight;
uint16_t inb_cfg_param1;
uint16_t inb_cfg_param2;
@@ -1744,6 +1744,7 @@ roc_nix_inl_sa_sync(struct roc_nix *roc_nix, void *sa, bool inb,
union cpt_lf_ctx_reload reload;
union cpt_lf_ctx_flush flush;
union cpt_lf_ctx_err err;
+ union cpt_lf_ctx_inval inval;
bool get_inl_lf = true;
uintptr_t rbase;
struct nix *nix;
@@ -1778,8 +1779,15 @@ roc_nix_inl_sa_sync(struct roc_nix *roc_nix, void *sa, bool inb,
flush.u = 0;
reload.u = 0;
+ inval.u = 0;
switch (op) {
case ROC_NIX_INL_SA_OP_FLUSH_INVAL:
+ if (!roc_model_is_cn10k()) {
+ inval.s.cptr = ((uintptr_t)sa) >> 7;
+ plt_write64(inval.u, rbase + CPT_LF_CTX_INVAL);
+ break;
+ }
+
flush.s.inval = 1;
/* fall through */
case ROC_NIX_INL_SA_OP_FLUSH:
@@ -1815,10 +1823,12 @@ roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
struct nix_inl_dev *inl_dev = NULL;
struct roc_cpt_lf *outb_lf = NULL;
union cpt_lf_ctx_flush flush;
+ union cpt_lf_ctx_inval inval;
union cpt_lf_ctx_err err;
bool get_inl_lf = true;
uintptr_t rbase;
struct nix *nix;
+ uint64_t *sa;
int rc;
/* Nothing much to do on cn9k */
@@ -1850,7 +1860,10 @@ roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
outb_lf = &inl_dev->cpt_lf[0];
}
- if (outb_lf) {
+ if (outb_lf == NULL)
+ goto exit;
+
+ if (roc_model_is_cn10k() || roc_nix->use_write_sa) {
rbase = outb_lf->rbase;
flush.u = 0;
@@ -1869,7 +1882,29 @@ roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
if (err.s.flush_st_flt)
plt_warn("CTX flush could not complete");
return 0;
+ } else {
+ sa = sa_dptr;
+
+ /* Clear bit 58 aop_valid */
+ sa[0] &= ~(1ULL << 58);
+ memcpy(sa_cptr, sa_dptr, sa_len);
+ plt_io_wmb();
+
+ /* Trigger CTX invalidate */
+ rbase = outb_lf->rbase;
+ inval.u = 0;
+ inval.s.cptr = ((uintptr_t)sa_cptr) >> 7;
+ plt_write64(inval.u, rbase + CPT_LF_CTX_INVAL);
+
+ /* Set bit 58 aop_valid */
+ sa = sa_cptr;
+ sa[0] |= (1ULL << 58);
+ plt_io_wmb();
+
+ return 0;
}
+
+exit:
plt_nix_dbg("Could not get CPT LF for CTX write");
return -ENOTSUP;
}