[dpdk-dev] [PATCH 02/62] common/sfc_efx/base: indicate support for MAE

[Andrew Rybchenko]

From: Ivan Malov <ivan.malov at oktetlabs.ru>

Riverhead boards maintain support for MAE, a low-level Match-Action Engine.
The feature is documented in SF-122526-TC.

The new field will help client drivers to test
NIC support for MAE status.

Signed-off-by: Ivan Malov <ivan.malov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Andy Moreton <amoreton at xilinx.com>
---
 drivers/common/sfc_efx/base/ef10_nic.c  | 15 +++++++++++++++
 drivers/common/sfc_efx/base/efx.h       |  2 ++
 drivers/common/sfc_efx/base/efx_check.h |  6 ++++++
 drivers/common/sfc_efx/base/siena_nic.c |  2 ++
 drivers/common/sfc_efx/efsys.h          |  2 ++
 5 files changed, 27 insertions(+)

diff --git a/drivers/common/sfc_efx/base/ef10_nic.c b/drivers/common/sfc_efx/base/ef10_nic.c
index df7db6a803..68414d9fa9 100644
--- a/drivers/common/sfc_efx/base/ef10_nic.c
+++ b/drivers/common/sfc_efx/base/ef10_nic.c
@@ -1421,8 +1421,23 @@ ef10_get_datapath_caps(
 	else
 		encp->enc_filter_action_mark_max = 0;
 
+#if EFSYS_OPT_MAE
+	/*
+	 * Indicate support for MAE.
+	 * MAE is supported by Riverhead boards starting with R2,
+	 * and it is required that FW is built with MAE support, too.
+	 */
+	if (CAP_FLAGS3(req, MAE_SUPPORTED))
+		encp->enc_mae_supported = B_TRUE;
+	else
+		encp->enc_mae_supported = B_FALSE;
+#else
+	encp->enc_mae_supported = B_FALSE;
+#endif /* EFSYS_OPT_MAE */
+
 #undef CAP_FLAGS1
 #undef CAP_FLAGS2
+#undef CAP_FLAGS3
 
 	return (0);
 
diff --git a/drivers/common/sfc_efx/base/efx.h b/drivers/common/sfc_efx/base/efx.h
index bd1ac303b1..9947882d26 100644
--- a/drivers/common/sfc_efx/base/efx.h
+++ b/drivers/common/sfc_efx/base/efx.h
@@ -1593,6 +1593,8 @@ typedef struct efx_nic_cfg_s {
 	uint32_t		enc_mac_stats_nstats;
 	boolean_t		enc_fec_counters;
 	boolean_t		enc_hlb_counters;
+	/* NIC support for Match-Action Engine (MAE). */
+	boolean_t		enc_mae_supported;
 	/* Firmware support for "FLAG" and "MARK" filter actions */
 	boolean_t		enc_filter_action_flag_supported;
 	boolean_t		enc_filter_action_mark_supported;
diff --git a/drivers/common/sfc_efx/base/efx_check.h b/drivers/common/sfc_efx/base/efx_check.h
index 8f42d87a04..078e5b9811 100644
--- a/drivers/common/sfc_efx/base/efx_check.h
+++ b/drivers/common/sfc_efx/base/efx_check.h
@@ -401,4 +401,10 @@
 # endif
 #endif /* EFSYS_OPT_DESC_PROXY */
 
+#if EFSYS_OPT_MAE
+# if !EFSYS_OPT_RIVERHEAD
+#  error "MAE requires RIVERHEAD"
+# endif
+#endif /* EFSYS_OPT_MAE */
+
 #endif /* _SYS_EFX_CHECK_H */
diff --git a/drivers/common/sfc_efx/base/siena_nic.c b/drivers/common/sfc_efx/base/siena_nic.c
index 4137c1e245..e2af0ff3dc 100644
--- a/drivers/common/sfc_efx/base/siena_nic.c
+++ b/drivers/common/sfc_efx/base/siena_nic.c
@@ -196,6 +196,8 @@ siena_board_cfg(
 	encp->enc_filter_action_mark_supported = B_FALSE;
 	encp->enc_filter_action_mark_max = 0;
 
+	encp->enc_mae_supported = B_FALSE;
+
 	return (0);
 
 fail2:
diff --git a/drivers/common/sfc_efx/efsys.h b/drivers/common/sfc_efx/efsys.h
index f7d5f8a060..8636e73b68 100644
--- a/drivers/common/sfc_efx/efsys.h
+++ b/drivers/common/sfc_efx/efsys.h
@@ -167,6 +167,8 @@ prefetch_read_once(const volatile void *addr)
 
 #define EFSYS_OPT_DESC_PROXY 0
 
+#define EFSYS_OPT_MAE 0
+
 /* ID */
 
 typedef struct __efsys_identifier_s efsys_identifier_t;
-- 
2.17.1