[PATCH v3 01/13] common/cnxk: set MTU size on SDP based on SoC type

[Nithin Dabilpuram]

From: Sathesh Edara <sed...@marvell.com>

Set maximum frame size on SDP NIX side to 16KB for T93 A0-B0,
F95N A0 and F95O A0 SOC type. Rest of the SoCs SDP NIX to 64KB.

Signed-off-by: Sathesh Edara <sed...@marvell.com>
---
v3:
- Fix commit message in patch 9/13
v2:
- Add fixes line in patch 1/13
- Squash patch 8/13 to 7/13 as 7/13 is the patch that introduced the bug
- Add another patch to handle HARD SA expiry event for outbound inline.

drivers/common/cnxk/hw/nix.h     |  1 +
 drivers/common/cnxk/roc_errata.h |  8 ++++++++
 drivers/common/cnxk/roc_model.h  | 12 ++++++++++++
 drivers/common/cnxk/roc_nix.c    |  5 ++++-
 4 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/common/cnxk/hw/nix.h b/drivers/common/cnxk/hw/nix.h
index a5352644ca..425c335bf3 100644
--- a/drivers/common/cnxk/hw/nix.h
+++ b/drivers/common/cnxk/hw/nix.h
@@ -2118,6 +2118,7 @@ struct nix_lso_format {
 #define NIX_CN9K_MAX_HW_FRS 9212UL
 #define NIX_LBK_MAX_HW_FRS  65535UL
 #define NIX_SDP_MAX_HW_FRS  65535UL
+#define NIX_SDP_16K_HW_FRS  16380UL
 #define NIX_RPM_MAX_HW_FRS  16380UL
 #define NIX_MIN_HW_FRS     60UL
 
diff --git a/drivers/common/cnxk/roc_errata.h b/drivers/common/cnxk/roc_errata.h
index d3b32f1786..a39796e894 100644
--- a/drivers/common/cnxk/roc_errata.h
+++ b/drivers/common/cnxk/roc_errata.h
@@ -90,4 +90,12 @@ roc_errata_nix_no_meta_aura(void)
        return roc_model_is_cn10ka_a0();
 }
 
+/* Errata IPBUNIXTX-35039 */
+static inline bool
+roc_errata_nix_sdp_send_has_mtu_size_16k(void)
+{
+       return (roc_model_is_cnf95xxn_a0() || roc_model_is_cnf95xxo_a0() ||
+               roc_model_is_cn96_a0() || roc_model_is_cn96_b0());
+}
+
 #endif /* _ROC_ERRATA_H_ */
diff --git a/drivers/common/cnxk/roc_model.h b/drivers/common/cnxk/roc_model.h
index 57a8af06fc..1985dd771d 100644
--- a/drivers/common/cnxk/roc_model.h
+++ b/drivers/common/cnxk/roc_model.h
@@ -140,6 +140,12 @@ roc_model_is_cn96_ax(void)
        return (roc_model->flag & ROC_MODEL_CN96xx_Ax);
 }
 
+static inline uint64_t
+roc_model_is_cn96_b0(void)
+{
+       return (roc_model->flag & ROC_MODEL_CN96xx_B0);
+}
+
 static inline uint64_t
 roc_model_is_cn96_cx(void)
 {
@@ -170,6 +176,12 @@ roc_model_is_cnf95xxn_b0(void)
        return roc_model->flag & ROC_MODEL_CNF95xxN_B0;
 }
 
+static inline uint64_t
+roc_model_is_cnf95xxo_a0(void)
+{
+       return roc_model->flag & ROC_MODEL_CNF95xxO_A0;
+}
+
 static inline uint16_t
 roc_model_is_cn95xxn_a0(void)
 {
diff --git a/drivers/common/cnxk/roc_nix.c b/drivers/common/cnxk/roc_nix.c
index 4bb306b60e..8fd8ec8461 100644
--- a/drivers/common/cnxk/roc_nix.c
+++ b/drivers/common/cnxk/roc_nix.c
@@ -127,8 +127,11 @@ roc_nix_max_pkt_len(struct roc_nix *roc_nix)
 {
        struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 
-       if (roc_nix_is_sdp(roc_nix))
+       if (roc_nix_is_sdp(roc_nix)) {
+               if (roc_errata_nix_sdp_send_has_mtu_size_16k())
+                       return NIX_SDP_16K_HW_FRS;
                return NIX_SDP_MAX_HW_FRS;
+       }
 
        if (roc_model_is_cn9k())
                return NIX_CN9K_MAX_HW_FRS;
-- 
2.25.1